A kind of double-colored interlayer plastic chair and processing method
Technical field
The present invention relates to a kind of double-colored interlayer plastic chair, and the processing method of this double-colored interlayer plastic chair, chair belonged toManufacture field.
Background technology
Existing plastic chair generally adopts the plastic material injection mo(u)lding of solid color, and its color is single, and profile is not attractive in appearance, because ofThese people have invented the plastic chair of double coloured plastic injection machine injection mo(u)lding, and this double coloured plastic injection machine is provided with two injection heads, first by oneThe plastic raw materials of color injects the die cavity of mould through first injection head, after it is cooling, still stays in die cavity, then by mouldUpset, makes mould another side aim at second injection head, by second injection head, the plastic raw materials of another kind of color is injected to mouldIn tool, the plastics that the cooled semi-finished product of injection moulding for the first time melt as inserts and the heat of injection moulding for the second time become one, butThe dual-color plastic chair of moulding cannot reach the requirement of two kinds of color interval to external diffusion like this, and tone does not have stereovision, and effect is notDesirable.
Summary of the invention
The object of the invention is the shortcoming existing in order to overcome prior art, provide a kind of two kinds of colors taking cast gate as the center of circleBe circular interval to external diffusion, gradation is clearly demarcated, the double-colored interlayer plastic chair of one that product design is more attractive in appearance.
Another object of the present invention is to provide a kind of processing method of double-colored interlayer plastic chair.
The technical scheme of a kind of double-colored interlayer plastic chair of the present invention is: comprise seat support, chair back and chair pin, it is characterized in thatDescribed seat support and chair back are integrated double-colored interlayer injection mo(u)lding, and Connection Block is installed in seat support bottom surface, and chair pin is connected to Connection BlockUnder, the middle part that the seat support of described double-colored interlayer injection mo(u)lding and chair back are included in seat support and chair back junction arranges circularThe A1 portion of A colorant and the B1 portion of B colorant, A colorant and B colorant are circular interval to external diffusion, and described annulus is 5 rings, shapeThe B1 portion, A2 portion, B2 portion, A3 portion and the B3 portion that become color to replace.
The processing method of a kind of double-colored interlayer plastic chair of the present invention, comprises following procedure of processing:
(1), material loading: the PP raw material of A colorant and two kinds of different colours of B colorant is poured respectively into dual hopper injection machine twoIn hopper;
(2), enter the injection moulding of A look PP raw material: entered the barrel of injection machine by the PP raw material of A color, by the barrel pair of injection machineIt is heated to 235 DEG C-240 DEG C, penetrates pressure and is set to 66Bar-99Bar, then by injection head, quantitative heat is melted to A look PPRaw material implantation temperature is the mould A1 position of 40 DEG C-50 DEG C, forms A1 portion;
(3), enter the injection moulding of B look PP raw material: time delay 0.5 second after A1 portion has injected, enters injection moulding by the PP raw material of B colorThe barrel of machine, is heated to 235 DEG C-240 DEG C by the barrel of injection machine to it, penetrates pressure and is set to 99Bar-120Bar, soAfter by injection head, quantitative heat to be melted to B look PP raw material implantation temperature be in the mould of 40 DEG C-50 DEG C, due to A look A1 portion and mouldCore and die cavity inner surface contact, and make the upper and lower top layer of A1 portion first cooling, and shape are still melted in heat in the position, middle level of A1 portionState, B look PP raw material flow to the B1 position of mould through the position, middle level of A1 portion, form B1 portion;
(4), alternate cycles injection: repeat the 2nd and the 3rd step, injection sequence is followed successively by A2 → B2 → A3 → B3, A colorantTime delay 0.5 second while alternately injection with B colorant, makes product present circular A colorant and B colorant interval to external diffusion, describedAnnulus is 5 rings, forms B1 portion, A2 portion, B2 portion, A3 portion and B3 portion that color replaces;
(5) inject, for the last time A colorant: entered the barrel of injection machine by the PP raw material of A color, by the barrel of injection machineIt is heated to 185 DEG C, and the PP raw material implantation temperature that then by injection head, quantitative heat is melted to A color is the mould of 40 DEG C-50 DEG CIn tool, the position, middle level of A1 portion, B1 portion, A2 portion, B2 portion, A3 portion and the B3 portion of A color PP raw material through having injected flow to mouldA4 position, forms A4 portion;
(6), cooling forming: mould is carried out to cooling and pressurize 30 seconds, obtain the double-colored interlayer chair of one of moulding after die sinkingSeat and chair back;
(7), complete assembling: on the double-colored interlayer seat support of one and chair back, ready made Connection Block and chair pin are installed,Obtain complete double-colored interlayer plastic chair.
The invention discloses a kind of double-colored interlayer plastic chair and processing method thereof, main feature is to adopt two kinds of different faceThe plastic raw materials of look, as PP raw material, at the double-colored interlayer note of the upper employing of dual hopper injection machine (belonging to prior art, on sale on market)Molding process, by seat support and chair back integrated injection molding, the seat support of one and chair back form A1 portion that color replaces, B1 portion,A2 portion, B2 portion, A3 portion, B3 portion, be circular interval to external diffusion, makes the gradation of chair clearly demarcated, has very strong third dimension,The esthetic requirement that meets people, chair is more attractive in appearance.
The double-colored interlayer plastic chair of one of the present invention, it is main that described Connection Block comprises that the inverted trapezoidal of integral molded plastic moulding connectsSeat, connects the middle part of the seat of honour and thoroughly wears, and connects four jiaos of the seat of honour and arrange the chair pin hold-down support of extension, in chair pin hold-down support, arrangesFixing hole, chair pin and fixing hole fix, and the connection seat of honour is fixed on the bottom surface of seat support, the connection seat of honour entirety of inverted trapezoidal through screwIntensity is good, and wear thoroughly at the middle part that connects the seat of honour, saves again rapidoprint, and the connection seat of honour is fixed on the bottom surface of seat support through screw, installConvenient, firm. Described chair pin is that columniform timber is made, but also can make with other material, with the seat support of plastics andChair back is assembled into different chair. Described chair foot bottom is installed foot pad, has had foot pad, and chair is placed steadily. Described chairThe head of pin hold-down support is circular arc transition, and circular arc transition intensity is good. Described chair pin hold-down support be connected the seat of honour itBetween be oblique cambered surface transition, intensity is good. Described chair pin and fixing hole can fix by screw. Or described chair pin is with solidDetermine hole and also can fix by bonding, convenient fixing, reliable.
Brief description of the drawings
Fig. 1 is the schematic perspective view of a kind of double-colored interlayer plastic chair of the present invention;
Fig. 2 is the side view of a kind of double-colored interlayer plastic chair of the present invention;
Fig. 3 is the bottom view of a kind of double-colored interlayer plastic chair of the present invention;
Fig. 4 is Connection Block schematic diagram of the present invention.
Detailed description of the invention
The present invention relates to a kind of double-colored interlayer plastic chair, as shown in Fig. 1-Fig. 4, comprise seat support 1, chair back 2 and chair pin 4,Described seat support 1 and chair back 2 are integrated double-colored interlayer injection mo(u)lding, and Connection Block 3 is installed in seat support 1 bottom surface, and chair pin 4 is connected toJoint chair 3 times, the seat support 1 of described double-colored interlayer injection mo(u)lding and chair back 2 are included in the middle part of seat support 1 and chair back 2 junctionsThe A1 portion of circular A colorant and the B1 portion of B colorant are set, and A colorant and B colorant are circular interval to external diffusion, described circleRing is 5 rings, forms B1 portion, A2 portion, B2 portion, A3 portion and B3 portion that color replaces.
The processing method of a kind of double-colored interlayer plastic chair of the present invention, comprises following procedure of processing:
(1), material loading: the PP raw material of A colorant and two kinds of different colours of B colorant is poured respectively into dual hopper injection machine twoIn hopper;
(2), enter the injection moulding of A look PP raw material: entered the barrel of injection machine by the PP raw material of A color, by the barrel pair of injection machineIt is heated to 235 DEG C-240 DEG C, penetrates pressure and is set to 66Bar-99Bar, then by injection head, quantitative heat is melted to A look PPRaw material implantation temperature is the mould A1 position of 40 DEG C-50 DEG C, forms A1 portion;
(3), enter the injection moulding of B look PP raw material: time delay 0.5 second after A1 portion has injected, enters injection moulding by the PP raw material of B colorThe barrel of machine, is heated to 235 DEG C-240 DEG C by the barrel of injection machine to it, penetrates pressure and is set to 99Bar-120Bar, soAfter by injection head, quantitative heat to be melted to B look PP raw material implantation temperature be in the mould of 40 DEG C-50 DEG C, due to A look A1 portion and mouldCore and die cavity inner surface contact, and make the upper and lower top layer of A1 portion first cooling, and shape are still melted in heat in the position, middle level of A1 portionState, B look PP raw material flow to the B1 position of mould through the position, middle level of A1 portion, form B1 portion;
(4), alternate cycles injection: repeat the 2nd and the 3rd step, injection sequence is followed successively by A2 → B2 → A3 → B3, A colorantTime delay 0.5 second while alternately injection with B colorant, makes product present circular A colorant and B colorant interval to external diffusion, describedAnnulus is 5 rings, forms B1 portion, A2 portion, B2 portion, A3 portion and B3 portion that color replaces;
(5) inject, for the last time A colorant: entered the barrel of injection machine by the PP raw material of A color, by the barrel of injection machineIt is heated to 185 DEG C, and the PP raw material implantation temperature that then by injection head, quantitative heat is melted to A color is the mould of 40 DEG C-50 DEG CIn tool, the position, middle level of A1 portion, B1 portion, A2 portion, B2 portion, A3 portion and the B3 portion of A color PP raw material through having injected flow to mouldA4 position, forms A4 portion;
(6), cooling forming: mould is carried out to cooling and pressurize 30 seconds, obtain the double-colored interlayer chair of one of moulding after die sinkingSeat and chair back;
(7), complete assembling: on the double-colored interlayer seat support of one and chair back, ready made Connection Block and chair pin are installed,Obtain complete double-colored interlayer plastic chair.
Main feature of the present invention is the plastic raw materials that adopts two kinds of different colours, as PP raw material, at dual hopper injection machineThe double-colored interlayer injection moulding method of (belonging to prior art, on sale on market) upper employing, by seat support and chair back integrated injection molding, oneThe seat support of body and chair back form A1 portion, B1 portion, A2 portion, B2 portion, A3 portion, the B3 portion that color replaces, and are circular interval outsideDiffusion, makes the gradation of chair clearly demarcated, has very strong third dimension, meets people's esthetic requirement, and chair is more attractive in appearance.
The double-colored interlayer plastic chair of one of the present invention, described Connection Block 3 comprises that the inverted trapezoidal of integral molded plastic moulding connectsThe seat of honour 31, connects the middle part of the seat of honour 31 and thoroughly wears, and connects four jiaos of the seat of honour 31 and arrange the chair pin hold-down support 32 of extension, and chair pin is fixedFixing hole 33 is set in bearing 32, and chair pin 4 fixes with fixing hole 33, and the connection seat of honour 31 is fixed on the end of seat support 1 through screw 34Face, the connection seat of honour good integral strength of inverted trapezoidal, wear thoroughly at the middle part that connects the seat of honour, saves again rapidoprint, connects the seat of honour through spiral shellNail is fixed on the bottom surface of seat support, easy for installation, firm. Described chair pin 4 is that columniform timber is made, but also can use otherMaterial is made, and is assembled into different chair with seat support and the chair back of plastics. Foot pad 5 is installed in described chair pin 4 bottoms, has had pinPad, chair is placed steadily. The head of described chair pin hold-down support 32 is circular arc 35 transition, and circular arc transition intensity is good. InstituteThe chair pin hold-down support 32 of stating is oblique cambered surface 36 transition with being connected between the seat of honour 31, and intensity is good. Described chair pin 4 and fixing hole 33Can fix by screw. Or described chair pin 4 also can fix by bonding with fixing hole 33, convenient fixing, canLean on.