CN101380803B - Injection mold for forming double-layer double-color shell products and injection molding method using the mold - Google Patents

Injection mold for forming double-layer double-color shell products and injection molding method using the mold Download PDF

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Publication number
CN101380803B
CN101380803B CN2008102186014A CN200810218601A CN101380803B CN 101380803 B CN101380803 B CN 101380803B CN 2008102186014 A CN2008102186014 A CN 2008102186014A CN 200810218601 A CN200810218601 A CN 200810218601A CN 101380803 B CN101380803 B CN 101380803B
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China
Prior art keywords
dynamic
cover
injection
double
solid plate
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Expired - Fee Related
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CN2008102186014A
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Chinese (zh)
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CN101380803A (en
Inventor
陈锦华
曾秋文
邓贵华
冯仕煌
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Dongguang Ngai Cheong Mould Manufacturing Injection Molding Co Ltd
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Dongguang Ngai Cheong Mould Manufacturing Injection Molding Co Ltd
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Priority to CN2008102186014A priority Critical patent/CN101380803B/en
Publication of CN101380803A publication Critical patent/CN101380803A/en
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Expired - Fee Related legal-status Critical Current
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Abstract

The present invention discloses an injection mold used for molding a double-layer double-color casing product. The injection mold comprises a die blank which is provided with a movable template and a fixed template. The fixed template is corresponding to a double-color injection device. The movable template is provided with two movable dies. The fixed template is provided with a fixed die. Two movable dies are arranged in the movable template plane side by side. The movable template is arranged at a linear slide way along the same direction of the arrangement direction of two movable dies. The movable template is connected with a hydraulic drive set and is driven by the hydraulic drive set to make reciprocating movement along the slide way. One of two movable dies is matched with the fixed die to form a die cavity, the size of which is larger than the size of the die cavity formed by the other movable die and the fixed die. A control apparatus of the hydraulic drive set is connected with the double-color injection device by a signal line. The injection method is different from the common double-color injection method, and two movable dies on the same mold are orderly matched with the fixed die by the linear movement of the movable template to realize the double-color double-layer injection.

Description

Be used for the injection mold of forming double-layer double-color shell products and use the injection moulding process of this mould
Technical field
The present invention relates to a kind of bicolor plastic cement injection molding technology field, particularly a kind of injection moulding process that is used for the injection mold of forming double-layer double-color shell products and uses this mould.
Technical background
Double-shot moulding has very general application in the plastic rubber shaping technical field.Usually adopt double coloured plastic injection machine, but the cost of double coloured plastic injection machine is higher.In order to overcome double coloured plastic injection machine cost problem of higher, Chinese patent ZL01228678.8 discloses a kind of injection device of distinguishing double coloured plastic injection machine, comprise hopper, barrel, hydraulic motor, injection screw and nozzle, it is characterized in that at least being the machine barrel that is set up in parallel by two is connected with its corresponding two parallel nozzles respectively and forms the double color injection device, but its continuity ground processes the function of distinguishing the dual-color plastic goods on the mould that an injector and a cover are made up of a cover half and dynamic model, be widely used in the processing of multi-color plastic products.But this injection device and corresponding mould owing to the limitation of bucket capacity and runner, are only applicable to the situation that shot is less or the local area needs are double-colored of second kind of color or material when carrying out double-shot moulding.And for large-sized housing product; in the time of particularly need setting up the different protective layer of one deck color and material on the whole surface of housing (double-layer bi-color), adopt the mould of this (cover half and a dynamic model) one to one to cooperate the double color injection device to be difficult to realize.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, and a kind of injection moulding process that is used for the injection mold of forming double-layer double-color shell products and uses this mould is provided.
The technical scheme that the present invention is used for the injection mold of forming double-layer double-color shell products is: a kind of injection mold that is used for forming double-layer double-color shell products, comprise the mold base that is provided with moving platen and solid plate, solid plate is corresponding with the double color injection device, it is characterized in that: described moving platen is provided with two dynamic models, cover half on the solid plate, two dynamic models are arranged side by side in the moving platen plane, moving platen is installed on the linear pattern slide rail consistent with two dynamic model arragement directions, and slide rail is provided with travel switch; Described moving platen is connected with fluid pressure drive device, and travel switch is electrically connected with the control device of fluid pressure drive device, and moving platen is driven along slide rail by fluid pressure drive device and moves back and forth, make win dynamic model and second dynamic model respectively with the cover half matched moulds; In described two dynamic models wherein second dynamic model cooperate formed cavity dimension to cooperate formed cavity dimension with cover half greater than first dynamic model with cover half, thereby provide the space for the injection moulding second time; The control device of fluid pressure drive device is connected by holding wire with the double color injection device.
Perhaps can adopt following scheme: described moving platen is provided with a dynamic model, two cover half on the solid plate, two cover half are arranged side by side in the solid plate plane, and solid plate is installed on the linear pattern slide rail consistent with two cover half arragement directions, and slide rail is provided with travel switch; Described solid plate is connected with fluid pressure drive device, and travel switch is electrically connected with the control device of fluid pressure drive device, and solid plate is driven along slide rail by fluid pressure drive device and moves back and forth, make win cover half and second cover half respectively with the dynamic model matched moulds; In described two cover half wherein second cover half cooperate formed cavity dimension to cooperate formed cavity dimension with dynamic model greater than first cover half with dynamic model, thereby provide the space for the injection moulding second time; The control device of fluid pressure drive device is connected by holding wire with the double color injection device.
Wherein: slide rail is provided with travel switch, and described travel switch is electrically connected with the control device of fluid pressure drive device.
The injection moulding process that is used for above-mentioned mould provided by the present invention comprises the steps:
A): first dynamic model of mold base and cover half matched moulds, first group of nozzle of double color injection device be injection in first dynamic model and the formed die cavity of cover half;
B): pressurize and cooling certain hour, first dynamic model and cover half die sinking, stock remains on the cover half side;
C): fluid pressure drive device drives moving platen along the slide rail linear slide, and makes second dynamic model corresponding with cover half;
D): second dynamic model and cover half matched moulds, second group of nozzle of double color injection device be injection in second dynamic model and the formed die cavity of cover half;
E): pressurize and cooling certain hour, second dynamic model and cover half die sinking.
Perhaps, it comprises the steps:
A): first cover half of mold base and dynamic model matched moulds, first group of nozzle of double color injection device be injection in first cover half and the formed die cavity of dynamic model;
B): pressurize and cooling certain hour, first cover half and dynamic model die sinking, stock remains on the dynamic model side;
C): fluid pressure drive device drives solid plate along the slide rail linear slide, and makes second cover half corresponding with dynamic model;
D): second cover half and dynamic model matched moulds, second group of nozzle of double color injection device be injection in second cover half and the formed die cavity of dynamic model;
E): pressurize and cooling certain hour, second cover half and dynamic model die sinking.
Wherein, the temperature of described first group of emitted sizing material of nozzle is lower than the temperature of second group of nozzle rubber stuff outgoing.When guaranteeing quadric injection mould like this, second layer sizing material can be well attached on the ground floor.
According to above technical scheme, the invention provides the injection mold that is used for forming double-layer double-color shell products, different with existing mould, it is corresponding with a cover half that it has two dynamic models, perhaps two cover half and corresponding being installed on the same mold base of dynamic model, when mold base is installed on the injection machine that is provided with the double color injection device, wherein template can be up and down or left and right sides straight line move, therefore utilize above-mentioned mould and injection moulding process, a mold can be only used, just high efficiency can be realized, large-area double-layer bi-color, moulding during with base layer unlike material and color.Owing to only need to adopt a mold, nor need special double coloured plastic injection machine, just can inject the product of Double colour double-deck, thereby can alleviate plasthetics manufacturer's cost of investment, and the manufacturing cost of product.
Description of drawings
Below in conjunction with the drawings and the specific embodiments the blow mold that the present invention is used to produce mannequin's stage property is described further.
Accompanying drawing 1 is the stereogram of mould among the present invention.
The specific embodiment
As shown in Figure 1, the injection mold that is used for forming double-layer double-color shell products in the present embodiment has comprised the basic structure of common plastic mould.As solid plate 1, moving platen 2 etc.Its difference is to have inlayed two dynamic model 2a side by side in moving platen 2, is provided with a cover half in the solid plate 1.The both sides of moving platen 2 are provided with linear pattern guide rail 3 along the orientation of two dynamic model 2a, the position corresponding with guide rail 3 is provided with the guide groove 2b with guide rail 3 tablings on the moving platen 2, moving platen 2 does reciprocating linear motion at the effect lower edge guide rail 3 of fluid pressure drive device (for example hydraulic jack is not shown).Wherein the cylinder body of hydraulic jack can be installed on the mold base, and its push rod and moving platen 2 interconnect by contiguous block and get final product.Simultaneously, on guide rail 3 travel switch is set, travel switch is electrically connected with the control device of fluid pressure drive device, is used to control the shift motion of moving platen 2, and it is corresponding with cover half exactly to make two dynamic model 2a to distinguish.The control device of hydraulic jack is connected by holding wire with injection machine, the action moment of control hydraulic jack.Travel switch is electrically connected equally with the control device of hydraulic jack.
In addition, in two dynamic models wherein second dynamic model cooperate formed cavity dimension to be greater than first dynamic model with cover half and cooperate formed cavity dimension with cover half, thereby provide the space for the injection moulding second time.
Panel with computer casing is an example, how specifically to introduce on common plastic rubber panel injection moulding layer of transparent PMMA material and promote that product integral body is wear-resisting, the injection moulding process of anti-scratch performance: the mould that will be provided with two dynamic models is installed on the injection machine, and with the nozzle alignment of injection machine, after installing, moving platen can move by straight line under hydraulic jack effect bottom left right or up.First dynamic model cooperates formed die cavity gap to be less than second dynamic model and cooperates formed die cavity gap with cover half with cover half, the difference in its gap just in time equals the thickness of transparent PMMA layer.
Then at the top of solid plate 1 or the side load onto another group nozzle and (for example adopt the disclosed double color injection device of ZL01228678.8, at present similarly install very universal with it, therefore do not introduce its concrete structure in detail), second group of nozzle be connected with the control system of injection machine by holding wire can control the grouping injection.Behind the first dynamic model 2a and cover half matched moulds, first group of normal injection of nozzle of injection machine, after pressurize and cooling, the first dynamic model 2a separates with cover half, and the matrix of computer panel is remained in the cover half.Hydraulic jack drives moving platen 2 straight lines and moves to second dynamic model and the corresponding position of cover half then, the beginning matched moulds, this moment second group of nozzle injection, at the PMMA protective layer of the surface formation layer of transparent of the matrix of computer panel.After pressurize and the cooling, second dynamic model and cover half die sinking make the computer panel of moulding remain on second dynamic model.From second dynamic model take off product by the action of ejector retainner plate, post rod mechanism or the operation of manipulator (deciding on concrete product structure) this moment; thereby obtain having the computer panel of base layer and two kinds of different colours of protective layer and material, realize whole double-layer bi-color injection moulding.
Conversely, when adopting two cover half to match with a dynamic model, the action in injection moulding process also is the same.Their difference is, when first time die sinking, the matrix of computer panel remains on the dynamic model.Their common ground is in die sinking first time process, and ejector retainner plate, the post rod mechanism of injection machine all are failure to actuate, and moving platen or solid plate straight line move then, the secondary matched moulds.After the die sinking second time, ejector retainner plate, post rod mechanism are just looked the concrete condition action.In the actual production process, specifically select two dynamic models, two cover half that match with a cover half still to match with a dynamic model and decide on the concrete structure of wanting shaped article.

Claims (5)

1. injection mold that is used for forming double-layer double-color shell products, comprise the mold base that is provided with moving platen and solid plate, solid plate is corresponding with the double color injection device, it is characterized in that: described moving platen is provided with two dynamic models, cover half on the solid plate, two dynamic models are arranged side by side in the moving platen plane, and moving platen is installed on the linear pattern slide rail consistent with two dynamic model arragement directions, and slide rail is provided with travel switch; Described moving platen is connected with fluid pressure drive device, and travel switch is electrically connected with the control device of fluid pressure drive device, and moving platen is driven along slide rail by fluid pressure drive device and moves back and forth, make win dynamic model and second dynamic model respectively with the cover half matched moulds; In described two dynamic models wherein second dynamic model cooperate formed cavity dimension to cooperate formed cavity dimension with cover half greater than first dynamic model with cover half, thereby provide the space for the injection moulding second time; The control device of fluid pressure drive device is connected by holding wire with the double color injection device.
2. injection mold that is used for forming double-layer double-color shell products, comprise the mold base that is provided with moving platen and solid plate, solid plate is corresponding with the double color injection device, it is characterized in that: described moving platen is provided with a dynamic model, two cover half on the solid plate, two cover half are arranged side by side in the solid plate plane, and solid plate is installed on the linear pattern slide rail consistent with two cover half arragement directions, and slide rail is provided with travel switch; Described solid plate is connected with fluid pressure drive device, and travel switch is electrically connected with the control device of fluid pressure drive device, and solid plate is driven along slide rail by fluid pressure drive device and moves back and forth, make win cover half and second cover half respectively with the dynamic model matched moulds; In described two cover half wherein second cover half cooperate formed cavity dimension to cooperate formed cavity dimension with dynamic model greater than first cover half with dynamic model, thereby provide the space for the injection moulding second time; The control device of fluid pressure drive device is connected by holding wire with the double color injection device.
3. an application rights requires the injection moulding process of 1 described mould, and it is characterized in that: it comprises the steps:
A): first dynamic model of mold base and cover half matched moulds, first group of nozzle of double color injection device be injection in first dynamic model and the formed die cavity of cover half;
B): pressurize and cooling certain hour, first dynamic model and cover half die sinking, stock remains on the cover half side;
C): fluid pressure drive device drives moving platen along the slide rail linear slide, and makes second dynamic model corresponding with cover half;
D): second dynamic model and cover half matched moulds, second group of nozzle of double color injection device be injection in second dynamic model and the formed die cavity of cover half;
E): pressurize and cooling certain hour, second dynamic model and cover half die sinking.
4. an application rights requires the injection moulding process of 2 described moulds, and it is characterized in that: it comprises the steps:
A): first cover half of mold base and dynamic model matched moulds, first group of nozzle of double color injection device be injection in first cover half and the formed die cavity of dynamic model;
B): pressurize and cooling certain hour, first cover half and dynamic model die sinking, stock remains on the dynamic model side;
C): fluid pressure drive device drives solid plate along the slide rail linear slide, and makes second cover half corresponding with dynamic model;
D): second cover half and dynamic model matched moulds, second group of nozzle of double color injection device be injection in second cover half and the formed die cavity of dynamic model;
E): pressurize and cooling certain hour, second cover half and dynamic model die sinking.
5. according to claim 3 or 4 described injection moulding process, it is characterized in that: the temperature of described first group of emitted sizing material of nozzle is lower than the temperature of second group of nozzle rubber stuff outgoing.
CN2008102186014A 2008-10-23 2008-10-23 Injection mold for forming double-layer double-color shell products and injection molding method using the mold Expired - Fee Related CN101380803B (en)

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Application Number Priority Date Filing Date Title
CN2008102186014A CN101380803B (en) 2008-10-23 2008-10-23 Injection mold for forming double-layer double-color shell products and injection molding method using the mold

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Application Number Priority Date Filing Date Title
CN2008102186014A CN101380803B (en) 2008-10-23 2008-10-23 Injection mold for forming double-layer double-color shell products and injection molding method using the mold

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CN101380803B true CN101380803B (en) 2011-03-23

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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101954704B (en) * 2009-07-15 2013-12-25 深圳Tcl新技术有限公司 Double-color plastic injection method
CN102101345A (en) * 2009-12-22 2011-06-22 鸿富锦精密工业(深圳)有限公司 Injection molding method
CN102161223B (en) * 2011-01-12 2013-06-12 深圳创维-Rgb电子有限公司 Injecting mold of bi-color screen-sealing front housing and precise injection molding method
CN102794867B (en) * 2011-05-24 2014-09-17 凯达电子(昆山)有限公司 Plastic shaping system
CN102896742B (en) * 2012-09-06 2014-12-17 宁波意中模塑有限公司 General machine double color mold
CN104708764A (en) * 2013-12-11 2015-06-17 江苏新泉汽车饰件股份有限公司 Mould used in manufacture of high-strength mirror surface light-transmitting type instrument board
CN103737785A (en) * 2014-01-14 2014-04-23 昆山易昌泰塑胶有限公司 Dual-color injection molding machine with large injection range
CN106113413B (en) * 2016-08-29 2018-08-21 大连銮艺精密模塑制造有限公司 Utilize the molding mold of the double-deck oblique teeth demoulding mechanism
CN109228134A (en) * 2018-09-28 2019-01-18 柳州科沃塑业有限公司 A kind of high intensity flexible glue mold shell and its methods for making and using same

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