Car seat headrest vertical-foaming mould
Technical field
The present invention relates to a kind of foaming mould, the especially vertical-foaming mould of car seat headrest.
Background technology
Existing automotive seat front and rear row headrest all adopts horizontal frostproof froth n, and its upper/lower die die cavity is shallower, matched moulds line length, can cause flash phenomena, produces hard-edge;It addition, except in foaming process, foaming mould has gap except upper and lower intermode, mould side is also porose for placing the headrest tube connecting headrest and seat, in chassis uphill process, the hole for placing headrest tube also there will be flash.To sum up, there is flash phenomena in existing horizontal headrest foaming mould, is easily generated hard-edge, unstable product quality, and adds the workload of operator.
Summary of the invention
The present invention is directed to above-mentioned technical problem to improve, intend providing a kind of vertical-foaming mould, it is to avoid produce flash and hard-edge, improve product stability, reduce the workload of operator.
nullFor this,The technical solution adopted in the present invention is: a kind of car seat headrest vertical-foaming mould,Including big cylinder (1)、Little cylinder (2)、Air cylinder support (3)、Upper mould mold insert (4)、Loose plug (5)、Upper mould (6) and counterdie (7),Described upper mould (6) and counterdie (7) snap together composition headrest foaming die cavity (A),Described big cylinder (1) is arranged on the top of air cylinder support (3),Little cylinder (2) is arranged on the top of mould mold insert (4),Air cylinder support (3) is left、Right two ends extend vertically downward after with the left sides of upper mould (6)、Right side wall is fixed together,The piston-rod lower end of big cylinder (1) is connected with upper mould mold insert (4),The circular hole (4a) being provided with up/down perforation in described upper mould mold insert (4) supplies the piston rod of little cylinder (2) to pass through,The top of described loose plug (5) is stretched in the groove (4b) of mould mold insert (4) bottom mating,And the top of the top of loose plug (5) and groove (4b) is fixed together by the magnetic force of Magnet (8),Described upper mould mold insert (4) drives loose plug (5) to move from top to bottom together,Upper mould mold insert (4) is stretched in the top cavity (B) of mould (6),And loose plug (5) reaches in headrest foaming die cavity (A).
Preferred as such scheme, described little cylinder (2) totally two, it is symmetricly set on the left and right sides of big cylinder (1) piston rod, to facilitate layout, and ensures left and right stress balance;Big cylinder limited block (10) it is provided with between the piston rod of each little cylinder (2) and big cylinder (1); the lower end of described big cylinder limited block (10) is fixed on mould mold insert (4) top; and cylinder limited block (10) is higher than little cylinder (2) greatly; stroke limit during for big cylinder is moved upward; prevent little cylinder from clashing into air cylinder support, thus protecting little cylinder.
Beneficial effects of the present invention:
(1) adopt vertical headrest foaming mould, it is possible to increase counterdie depth of cavity, correspondingly reduce the spue line length of upper and lower mould, flash and hard-edge can be reduced, reduce the workload of operator, improve product quality and stability;
(2) it is additionally arranged loose plug, loose plug is final and workpiece is one-body molded, after loose plug takes off from workpiece, workpiece leaves the die cavity of loose plug, the working of plastics of corresponding die cavity can be bumped into, then be connected with automotive seat, be effectively guaranteed product integrity, solve the problem that product causes because aerofluxus is bad repairing and scrapping, further increase product quality and stability.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of the present invention.
Fig. 2 is the top view of upper mould mold insert in Fig. 1.
Fig. 3 is the upward view of Fig. 2.
Fig. 4 is workpiece and loose plug structural representation after one-body molded.
Fig. 5 is the view profile of Fig. 4.
Detailed description of the invention
By the examples below and in conjunction with accompanying drawing, the invention will be further described:
As it is shown in figure 1, a kind of car seat headrest vertical-foaming mould, mainly it is made up of big cylinder 1, little cylinder 2, air cylinder support 3, upper mould mold insert 4, loose plug 5, upper mould 6, counterdie 7, Magnet 8, big cylinder limited block 10, big cylinder lead 11 etc..
Upper mould 6 and counterdie 7 snap together composition headrest foaming die cavity A, and upper mould 6 is setting up and down with counterdie 7, constitutes vertical headrest foaming mould.
Big cylinder 1, little cylinder 2 are vertical cylinder, and big cylinder 1 is arranged on the top of air cylinder support 3, and little cylinder 2 is arranged on the top of mould mold insert 4.The left and right two ends of air cylinder support 3 are fixed together by fastening bolt with the left and right sidewall of upper mould 6 after extending vertically downward, on the left and right sidewall of upper mould 6, the plate body that the left and right two ends of air cylinder support 3 extend vertically downward are correspondingly arranged on bolt through-hole.The piston-rod lower end of big cylinder 1 is connected with upper mould mold insert 4, big cylinder 1 drive upper mould mold insert 4 to move up and down.
Shown in Fig. 1 Fig. 5, the circular hole 4a being provided with up/down perforation in upper mould mold insert 4 supplies the piston rod of little cylinder 2 to pass through, and the bottom of upper mould mold insert 4 is provided with the top outline of groove 4b, the contour shape of groove 4b and loose plug 5.The top of loose plug 5 is stretched in the groove 4b bottom mould mold insert 4, and the top of the top of loose plug 5 and groove 4b is fixed together by the magnetic force of Magnet 8, namely the Magnet 8 that quantity is equal, position is corresponding it is respectively arranged with at the top at the top of loose plug 5, groove 4b, the magnetic force of Magnet 8 should ensure that upper mould mold insert 4 can drive loose plug 5 to move up and down together not by under External Force Acting.Upper mould 6 top is provided with and the top cavity B of upper mould mold insert 4 outline, and upper mould mold insert 4 drives loose plug 5 to move from top to bottom together, and upper mould mold insert 4 stretches in the top cavity B of mould 6, and loose plug 5 reaches in headrest foaming die cavity A.
Preferably, totally two, little cylinder 2, it is symmetricly set on the left and right sides of big cylinder 1 piston rod, to facilitate layout, and ensures left and right stress balance;It is provided with big cylinder limited block 10 between the piston rod of each little cylinder 2 and big cylinder 1; the lower end of big cylinder limited block 10 is fixed on mould mold insert 4 top; and cylinder limited block 10 is higher than little cylinder 2 greatly; stroke limit during for big cylinder 1 is moved upward; prevent little cylinder 2 from clashing into air cylinder support 3, thus protecting little cylinder 2.
It addition, be additionally provided with two big cylinder leads 11 being symmetrically arranged between air cylinder support 3 and upper mould mold insert 4, it is ensured that the stationarity of big cylinder 1 motion.
During operation, in the die cavity of counterdie 7, first add raw material, driven upper mould to turn over by other switching mechanism to turn 90 degrees, upper mould mold insert 4, loose plug 5 is driven to move (upper mould mold insert 4 is fixed together by the magnetic force of Magnet 8 with loose plug 5) downwardly together by big cylinder 1 again, make mould mold insert 4 stretch in the top cavity B of mould 6, and loose plug 5 reaches in headrest foaming die cavity A and realizes matched moulds;Afterwards, the workpiece 9 in headrest foaming die cavity A and loose plug 5 one-body molded (as shown in Figure 4, Figure 5);Before die sinking, first upper mould mold insert 4 is driven to move upward to qualifying bit by big cylinder 1, again by the circular hole 4a of the piston rod upper mould mold insert 4 of traverse of little cylinder 2 lower section reaching upper mould mold insert 4, the thrust of little cylinder 2 more than the magnetic force of Magnet 8 thus loose plug 5 is pushed open, finally turned over to turn 90 degrees by the upper mould of switching mechanism drive and open upper mould 6, take out integrated workpiece 9 and loose plug 5.