CN1129669A - Manufacture of vacuum foaming seat-pad - Google Patents
Manufacture of vacuum foaming seat-pad Download PDFInfo
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- CN1129669A CN1129669A CN 95115496 CN95115496A CN1129669A CN 1129669 A CN1129669 A CN 1129669A CN 95115496 CN95115496 CN 95115496 CN 95115496 A CN95115496 A CN 95115496A CN 1129669 A CN1129669 A CN 1129669A
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Abstract
The vacuum foaming cushion is made up through such technological steps as fixing the substrate and surficial layer to specially designed mould in foaming former, fixing mould, adsorption shaping of surficial layer, feeding material, closing mould, and foaming to form an elastic layer between substrate and surficial layer and adhered with them tightly. Also, if the mould for surficial layer has a given number of slots, finished cushion has the same number of air slots.
Description
The present invention relates to the method for the one-body molded seat cushion of a kind of manufacturing, more detailed it, especially refer to a kind of vacuum foaming technology and cooperation special dies utilized, can make it to make foaming-formed seat cushion, stream line pattern seat cushion of using as locomotive or comfortable chair cushion with circulating air groove, value person on the real tool industry.
Seat cushion commonly used is made up of a base plate, posterior limiting and a coating layer; Wherein: these elasticity series of strata are foamed by soft foaming agent and are made; And the suitable shape person of tool is to be that the mat stick makes it to adhere on the base plate, and method makes the coating layer ring cover the surface of connecting airtight in this elastic layer with stick by this, and forms a seat cushion person; So; The method for making of the traditional seat cushion of this kind, not only foaming is in advance made this elastic layer and must be pasted the processing of affixed moulding through secondary.Be with; real tool manufacturing process complexity; cost is high and can't keep certain bonding quality requirements that connects airtight; and be to cover these coating layers and base plate because of it again in bonding mode of connecting airtight; be with; because of the inefficacy of stick, regular meeting causes the thing person of seat cushion modification damage after use a period of time, and the utmost point is not inconsistent the principle of durable.
In addition, in recent years for improving the traveling comfort and the air permeability of seat cushion, being shaped in the surface of this seat cushion can be for the number depression air slot of airiness, it makes its depression that several grooves are arranged when lying in the elastic layer foaming, utilize the course of processing of artificial stickup the (adopting the sewing machine person) again, make this coating layer cover the person that forms the air slot with its recessed trench depression if elastic layer also has when thin; So plant manufacture method according to this, it is not only outside processed complex, difficulty and the cost height, and has yielding shortcoming, and really difficulty meets the claimer who improves quality.
The present invention's main purpose ties up in a kind of manufacture of vacuum foaming seat-pad is provided, and it is with the vacuum foaming technique of innovation and special mold design, to make the one-body molded seat cushion of foaming; To eliminate shortcoming persons such as seat cushion course of processing complexity commonly used, cost height, yielding and bad.
The present invention's secondary objective ties up in a kind of manufacture of vacuum foaming seat-pad is provided, it is the die surface of absorption location coating layer, offer the bar groove of reservation shape or number, when foaming, coating layer is firmly connected airtight on elastic layer, and the circulating air groove of integrally formed depression or projection, really tool is made simple and easy, rapid and the good practicality person of quality.
Another object of the present invention ties up in a kind of manufacture of vacuum foaming seat-pad is provided, it is with vacuum foaming technology and special dies, one is connected airtight these base plates and coating layer when making this elastic layer moulding, so can reach rapid volume production, stay in grade and practicality such as not yielding, really value person on the tool industry.
The object of the present invention is achieved like this, it is a kind of manufacture of vacuum foaming seat-pad, and it is the foaming agent of selecting suitable seat cushion board, coating layer for use and making elastic layer, makes step through following numeral system, and make foaming-formed seat cushion person, its manufacturing step has in regular turn:
(1) base plate solid model is that base plate is fixed on the mould of foaming machine;
(2) vacuum type coating layer location then is to utilize vacuum machine that coating layer is positioned on another mould of foaming machine with the absorption of mould inside shape;
(3) material feeding process is the foaming machine that utilizes the auto-control Design amount, and the foaming agent that injects suitable dosage is on the mould of above-mentioned location coating layer;
(4) foaming inclosed molds process, system makes the mould of seat cushion board and coating layer closed relatively, make the foaming agent injected form posterior limiting, and make the toughness of this elastic layer mat foaming process through appropriate time foaming, make it with this coating layer and or base plate is one-body molded connects airtight; And this foaming inclosed molds process is to look the difference of material and select suitable mold closing temperature and pressure for use, wherein the system of the mold face temperature during this foaming inclosed molds remains between 35 ℃～60 ℃ the person for good, the pressure of mold closing is good person with 5～30 tons then, and the foaming agent that elastic layer is made in this foaming then is a kind of high molecular polymer;
(5) finished product is taken out in die sinking: behind suitable hardening time, can die sinking take out finished product continue said process.
The present invention's locomotive seat cushion manufacture method can be omitted the base plate solid model, and other process is constant.In addition, described high molecular polymer is preferably PU, i.e. POLYURETHANE FOAM.This mould cording has the warm water circulating system of exhaust and control mold face temperature, guarantees that to reach mold face temperature remains in person between 35 ℃～60 ℃; And the bottom surface of this location coating layer mould system is provided with the sequence hole, makes coating layer absorption typing person with external vacuum machine.Should be in order to the die surface of absorption location coating layer, be to be provided with that to be reservation shape and several depression or projection be groove, what make that its surface forming of foaming-formed seat cushion has depression or a projection counts the circulating air groove, but to reach the purpose person with conducting circulating air.This coating layer can be artificial synthetic skin, flannelette or leather for it, and be through the baking temperature processing of a preheating, in order to do being formed on the mould, to increase its plasticity person of the moulding with the type subsides.If this coating layer is in leather or flannelette being, open up through an extensibility earlier and increase epithelium and handle, make its bottom surface increase by an epithelium processing layer, to eliminate its ventilative lyriform pore, avoid the infiltration of foaming agent to spill and guarantee vacuum suction typing person.This baking temperature is handled, and is that coating layer is suitably heated between 80 ℃～150 ℃ according to its material, gives covering to put again and finalizes the design on mould, can guarantee the stability of coating layer integral structure tissue and the variation person that tool prevents the coating layer rerum natura.Can there be little protruding point person on this product coating layer surface.
Above-mentioned these processes of mat, the seat cushion that can provide a kind of foaming to connect airtight moulding, really the practical value person of sustained, the durable and rapid volume production of tool external form.
Vacuum foaming technology and manufacturing process that mat is above-mentioned, can make seat cushion coating layer 40, foaming elastic layer 30 with or base plate 20, foaming-formed person when making; Be with, really have following plurality of advantages:
1, because of being with the integrally manufactured moulding of vacuum foaming machine, so have simple and easy, the rapid mass production of the course of processing, cost is low and not yielding, quality is good etc., and many practical effects are promoted, the sincere value person on the tool industry.
2, number depression on the mat special dies surface or convex shape or bar groove, cooperate the flexible location that clamps shift assembly of air-cushion type to reach the tight adaptation of mould up and down, the blow pressure of mat foaming agent again, can make bar groove shape or the concave-convex curved surface of coating layer 40 surfaces of one-body molded seat cushion according to bed die, be molded into the number circulating air groove 50 (as shown in Figure 2) of the suitable curved surface of reservation shape or tool, in order to do having ventilating convection and not yielding advantage person; By this, shortcoming person such as complicated, difficulty and cost height or coating layer easily produces wrinkle shortcoming person not attractive in appearance in the time of really can eliminating seat cushion commonly used and desire to be shaped on air slot.
3, because of these coating layers 40 before covering is positioned bed die, must open up through an extensibility and increase epithelium and handle, make its bottom surface have an impermeable epithelium processing layer 31, so when being made into integration seat cushion, can make it to have the function of antiseepage, seat cushion really commonly used has more antiseepage, antifouling merit able one.
And vacuum foaming technology and manufacturing process according to the present invention, except can be used for making the seat cushion or locomotive seat cushion of seat, also can be used in back cushion or the seat cushion of making back pad or other purposes, really can import comprehensively furniture with lean on, affairs chair, computer chair and automobile be with comprehensive innovationization of chair etc., the value person on the real tool industry.
In sum, a kind of manufacture of vacuum foaming seat-pad of the present invention, it is with vacuum foaming technology and shape mould that cooperation is desired, can make seat cushion elastic layer, coating layer and or the integrally manufactured moulding of base plate, in order to do reach make simple and easy, cost is low, the good not yielding practicality such as wrinkle that is difficult for having of mass production and quality, really has value person on the industry.
Fig. 1 is the present invention's a manufacturing process diagram of block.
Fig. 2 is the part sectional stereogram of finished product of the present invention.
Fig. 3 system will the invention finished product generalized section.
Fig. 4 is the scheme drawing of locomotive seat cushion finished product of the present invention.
Describe the present invention in detail below in conjunction with drawings and Examples.
A kind of manufacture of vacuum foaming seat-pad of the present invention please cooperate and consult Fig. 1, shown in Figure 2, reveals this case explanation earlier in the explanation manufacturing process: the raw material that each component part adopted or its treating process of getting the raw materials ready in advance; This seat cushion 2 is can be divided into a base plate 20, posterior limiting 30 and a coating layer 40 etc. three partly to form; The locomotive seat cushion is that elastic layer and coating layer are organized base plate after one-body molded again;
Wherein: this base plate 20 is the plate body that is suitable shape, size, as plank (three ply wood, bent plate), PP plate, PA plate, ABS plate or POM plate etc.;
This elastic layer 30 is to be the foaming person of foaming agent institute of soft high molecular polymer, as PU (POLYURETHANE FOAM) etc., and is to adopt the mould inside shape of reservation shape and moulding person with institute's desire;
This coating layer 40, then can be flannelette, leather or manually synthesize skin etc., so wherein because of leather or flannelette (as by nylon, wool or the POLYESTER person of making), its surface all has ventilative lyriform pore, be with, be difficult for situation such as typing because of vacuum degree deficiency when making in manufacturing process unlikely generation that foaming agent infiltration or vacuum suction be arranged, it must be bestowed an extensibility earlier opens up and increases epithelium and handle, make its bottom surface extend to form an airtight epithelium processing layer 31 (as shown in Figure 3), have drip-preventing function and easily adsorb the location person to reach.
Understand above-mentioned these compositions and get the raw materials ready in advance handle after, now illustrate slightly that (because of these machineries is not the category that belongs to the present invention in the foaming machine of manufacturing process time institute adapted and vacuum machine in the present invention, hold and only outline its function), this foaming machine installing automatic guidance gager, have on it two relatively on the closure, bed die, these moulds are the oil pressure actuated closure and have warm water circulation-supplied system again, remain between 35 ℃～60 ℃ in order to do the control mold face temperature, in addition, the bottom surface of this bed die has the sequence hole, and is external vacuum machine person.The present invention's manufacturing process system includes:
1. coating layer dries by the fire warm process, is with the difference of coating layer 40 according to its material, and is heated respectively between 80 ℃～150 ℃, can guarantee the quality of coating layer 40 global tissue structures with this, and also can prevent the rerum natura variation person of coating layer 40.
2. the solid model process of base plate is a logotype two-period form air cylinder to be fixed in base plate 20 on the foaming machine on the mould, and tool makes it to guarantee not have the gap person with the mold driving fit.In the manufacture method of locomotive seat cushion, this process can be omitted need not.
3. the vacuum type position fixing process of coating layer is that the tiny through hole that utilizes vacuum machine to see through bed die is made vacuum suction, makes coating layer 40 be covered in down person on the tool with the absorption of the type in the mould.Full week of coating layer is that the flexible shift assembly clamping coating layer that clamps of mat air-cushion type exposes to mould again.(the also non-the present invention's of this kind clamping shift assembly scope does not repeat them here now)
4. material feeding process is to use the foaming machine with automatic control amount, and the foaming Ji (the present invention with PU for it) of injecting suitable dosage is on mould under the coating layer of above-mentioned location.
5. mold closing process, be utilize automatic oil pressure installation make upper and lower mould relatively closure connect airtight.Also but mat manpower mode is connected airtight upper and lower mould closure.Mold closing pressure is the best with 5～30 tons.
6. foamed forming process, after above-mentioned mold closing process, this foaming agent can be an elastic layer 30 because of chemical action produces foaming, the toughness that this process is had when foaming because of it can make it to connect airtight bonding mutually with this base plate 20, coating layer 40 respectively; And the expansion pressure that is produced during its foaming of mat can make the certain pushing tow coating layer of PU foaming agent 40 closely connected in the shape or the strip person of bed die depression or projection, uses the easy crape coating layer of manufacture method always to improve.And by preventing the high temperature that process is produced and discharging the interior air of mould smoothly, be to cooperate with, the real system of these moulds to have the warm water circulation for warm system (remaining between 35 ℃～60 ℃ with the control mold face temperature is the best) and exhaust system (to discharge the air person in the original mould).If there is not process 2., then in the foaming process, PU foaming agent (elastic layer) connects airtight bonding with coating layer 40.
7. die sinking process, after the above-mentioned predetermined time, but then the automatic oil pressure installation opening mold of mat and make the two-period form air cylinder action withdrawal of fixing mold after, can take out one-body molded seat cushion person, but also mat manpower mode delivery to take out the seat cushion person in the mould.This seat cushion is because of being subjected to the vacuum type position fixing process, and soon, there is tiny protruding point person on coating layer 40 surfaces of this seat cushion after taking-up.
Claims (9)
1, a kind of manufacture of vacuum foaming seat-pad, it is the foaming agent of selecting suitable seat cushion board, coating layer for use and making elastic layer, makes step through following numeral system, and makes foaming-formed seat cushion person, it is characterized in that: its manufacturing step has in regular turn:
(1) base plate solid model is that base plate is fixed on the mould of foaming machine;
(2) vacuum type coating layer location then is to utilize vacuum machine that coating layer is positioned on another mould of foaming machine with the absorption of mould inside shape;
(3) material feeding process is the foaming machine that utilizes the auto-control Design amount, and the foaming agent that injects suitable dosage is on the mould of above-mentioned location coating layer;
(4) foaming inclosed molds process, system makes the mould of seat cushion board and coating layer closed relatively, make the foaming agent injected form posterior limiting, and make the toughness of this elastic layer mat foaming process through appropriate time foaming, make it with this coating layer and or base plate is one-body molded connects airtight; And this foaming inclosed molds process is to look the difference of material and select suitable mold closing temperature and pressure for use, wherein the system of the mold face temperature during this foaming inclosed molds remains between 35 ℃～60 ℃ the person for good, the pressure of mold closing is good person with 5～30 tons then, and the foaming agent that elastic layer is made in this foaming then is a kind of high molecular polymer;
(5) finished product is taken out in die sinking: behind suitable hardening time, can die sinking take out finished product continue said process.
2, a kind of manufacture of vacuum foaming seat-pad is characterized in that: manufacture method according to claim 1, omit the base plate solid model, and other process is constant.
3, according to claim 1 or 2 described methods, it is characterized in that: described high molecular polymer is PU, i.e. POLYURETHANE FOAM.
4, manufacture of vacuum foaming seat-pad according to claim 1 and 2 is characterized in that: this mould cording has the warm water circulating system of exhaust and control mold face temperature, guarantees that to reach mold face temperature remains in person between 35 ℃～60 ℃; And the bottom surface of this location coating layer mould system is provided with the sequence hole, makes coating layer absorption typing person with external vacuum machine.
5, manufacture of vacuum foaming seat-pad according to claim 4, it is characterized in that: should be in order to the die surface of absorption location coating layer, system is provided with that to be reservation shape and several depression or projection be groove, makes its surface forming of foaming-formed seat cushion that several circulating air grooves of depression or projection be arranged.
6, manufacture of vacuum foaming seat-pad according to claim 1 and 2 is characterized in that: this coating layer can be artificial synthetic skin, flannelette or leather for it, and be through the baking temperature processing of a preheating.
7, manufacture of vacuum foaming seat-pad according to claim 6, it is characterized in that: if this coating layer is in leather or flannelette being, get to open up through an extensibility earlier and increase the epithelium processing, make its bottom surface increase by an epithelium processing layer, to eliminate its ventilative lyriform pore, avoid the infiltration of foaming agent to spill and guarantee vacuum suction typing person.
8, manufacture of vacuum foaming seat-pad according to claim 6 is characterized in that: this baking temperature is handled, and is that coating layer is suitably heated between 80 ℃～150 ℃ according to its material, gives covering to put again and finalizes the design on mould.
9, the seating product that a kind of method is as claimed in claim 1 or 2 made, it is characterized in that: there is little protruding point person on the coating layer surface of this product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95115496 CN1129669A (en) | 1995-09-19 | 1995-09-19 | Manufacture of vacuum foaming seat-pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95115496 CN1129669A (en) | 1995-09-19 | 1995-09-19 | Manufacture of vacuum foaming seat-pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1129669A true CN1129669A (en) | 1996-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95115496 Pending CN1129669A (en) | 1995-09-19 | 1995-09-19 | Manufacture of vacuum foaming seat-pad |
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| Country | Link |
|---|---|
| CN (1) | CN1129669A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6972205B2 (en) | 1999-12-01 | 2005-12-06 | Sharp Kabushiki Kaisha | Semiconductor laser device, fabricating method thereof and optical pickup employing the semiconductor laser device |
| CN102413738A (en) * | 2009-03-02 | 2012-04-11 | 株式会社普利司通 | Seat pad |
| CN103397114A (en) * | 2013-07-02 | 2013-11-20 | 刘建海 | Technology for making soft bag |
| CN103842284A (en) * | 2011-07-14 | 2014-06-04 | 普罗普里特公司 | Foam seat element, and process and mold for producing same |
| CN107521028A (en) * | 2017-09-19 | 2017-12-29 | 延锋安道拓座椅有限公司 | Automotive seat, preparation method and mould |
| CN110064898A (en) * | 2019-05-05 | 2019-07-30 | 甘肃顺耀国际能源科技有限公司 | A kind of high intensity PU seat and preparation method thereof |
-
1995
- 1995-09-19 CN CN 95115496 patent/CN1129669A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6972205B2 (en) | 1999-12-01 | 2005-12-06 | Sharp Kabushiki Kaisha | Semiconductor laser device, fabricating method thereof and optical pickup employing the semiconductor laser device |
| CN102413738A (en) * | 2009-03-02 | 2012-04-11 | 株式会社普利司通 | Seat pad |
| CN103842284A (en) * | 2011-07-14 | 2014-06-04 | 普罗普里特公司 | Foam seat element, and process and mold for producing same |
| CN103842284B (en) * | 2011-07-14 | 2016-10-12 | 普罗普里特公司 | Foam seat element and production method thereof and mould |
| CN103397114A (en) * | 2013-07-02 | 2013-11-20 | 刘建海 | Technology for making soft bag |
| CN103397114B (en) * | 2013-07-02 | 2015-03-25 | 刘建海 | Technology for making soft bag |
| CN107521028A (en) * | 2017-09-19 | 2017-12-29 | 延锋安道拓座椅有限公司 | Automotive seat, preparation method and mould |
| CN107521028B (en) * | 2017-09-19 | 2019-11-15 | 延锋安道拓座椅有限公司 | Automotive seat, preparation method and mold |
| CN110064898A (en) * | 2019-05-05 | 2019-07-30 | 甘肃顺耀国际能源科技有限公司 | A kind of high intensity PU seat and preparation method thereof |
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