CN102241122B - Single storage type three-layer plastic co-extrusion die head - Google Patents
Single storage type three-layer plastic co-extrusion die head Download PDFInfo
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- CN102241122B CN102241122B CN201110137499.7A CN201110137499A CN102241122B CN 102241122 B CN102241122 B CN 102241122B CN 201110137499 A CN201110137499 A CN 201110137499A CN 102241122 B CN102241122 B CN 102241122B
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Abstract
The invention discloses a single storage type three-layer plastic co-extrusion die head, comprising a thickness adjusting die body, a material feeding adjusting die body, a material feeding and storing die body and a forming die orifice which are sequentially overlapped and fixedly connected together, wherein the material feeding and storing die body comprises an inner layer material blank inlet, an intermediate-layer material blank inlet and an outer layer material blank inlet; an inner layer material blank runner is arranged corresponding to the inner layer material blank inlet; an intermediate layer material blank runner is arranged corresponding to the intermediate-layer material blank inlet; and an outer layer material blank runner is arranged corresponding to the outer layer material blank inlet. When the single storage type three-layer plastic co-extrusion die head works, the material blanks can be simultaneously fed into the three material blank inlets; the material blanks at the outer layer, the intermediate layer and the inner layer respectively enter a storage cavity of the material feeding and storing die body through corresponding material blank runners and are mixed and then extruded and formed by the forming die orifice in one step; various layers of plastic are closely attached and is firm without seepage; and by using the thickness adjusting die body, the forming die orifice can be adjusted and further the thickness of forming plastic can be adjusted.
Description
Technical field
The present invention relates to a kind of plastic molding machinery, relate in particular to a kind of co-extrusion die head of blow moulding machine of moulding three-layer plastic container.
Background technology
Along with scientific and technological progress, people are more and more higher to the portability requirement of the security of automobile, such as automotive oil tank, and heaviness, perishable, the heavy iron sheet fuel tank of quality can not meet people's requirement, is eliminated gradually.Corrosion-resistant, non-leakage, quality is light, and the plastic fuel tank of antistatic can obtain people's generally approval.
The plastic fuel tank that conventional method is manufactured, product thickness is inhomogeneous, quality is unstable, and easily be corroded, easy to leak, in conjunction with the growth requirement of domestic market and the requirement of practical application, plastic fuel tank can be manufactured to three layers, internal layer is antistatic, skin is the uvioresistant layer, and intermediate layer is polyethylene from high pressure process, but traditional middle control forming machine generally can only the production single-layer products.Minority can be produced the forming machine of three-layer plastic container, and structure is all very complicated, can not be regulated the wall thickness of the plastic containers of moulding, can only produce the plastic containers of single thickness, demand that more and more can not satisfying the market.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of single storage-cylinder three-layer plastic coextruding die head that can be adjusted to the plastic container wall thickness.
For solving the problems of the technologies described above, technical scheme of the present invention is: single storage-cylinder three-layer plastic coextruding die head comprises that die body, material feeding storing die body and moulding die orifice are regulated in the stacked and thick die body of tune that be fixed together, material feeding successively; Also comprise the core bar of carrying that runs through the thick die body of described tune, described material feeding adjusting die body and described material feeding storing die body, the described bottom of carrying core bar is connected with described moulding die orifice;
Described material feeding storing die body comprises interior layered material embryo entrance, middle material embryo entrance and outer layered material embryo entrance, the be provided with interior layered material embryo runner that interior layered material embryo imported to described moulding die orifice corresponding to described interior layered material embryo entrance, the be provided with middle material embryo runner that middle material embryo imported to described moulding die orifice corresponding to described middle material embryo entrance, the be provided with outer layered material embryo runner that outer layered material embryo imported to described moulding die orifice corresponding to described outer layered material embryo entrance.
As a kind of preferred technical scheme, the thick die body of described tune comprises adjusts thick cylinder, is equipped with in the thick cylinder of described tune and adjusts thick piston, the thick piston of described tune to be fixedly connected with the thick piston rod of tune, and the thick piston rod of described tune is fixedly connected with the described core bar of carrying.
As a kind of preferred technical scheme, described material feeding is regulated die body and is comprised the material feeding oil cylinder, in described material feeding oil cylinder, the material feeding piston is installed, described material feeding piston is fixedly connected with the material feeding piston rod, described material feeding piston rod is socketed in described carrying on core bar, the bottom of described material feeding piston rod is installed with, and described bottom of taking over a business is installed with push rod, and described push rod lower end is fixedly connected on described material feeding storing die body.
As a kind of preferred technical scheme, described material feeding storing die body comprises the material cylinder, be provided with internal layer plug and plug junctor in described material cylinder, described internal layer mandrel outer is equipped with neck bush, is provided with the interior layered material embryo runner that is communicated with described interior layered material embryo entrance and described material cylinder between described neck bush and described internal layer plug; Described neck bush is equipped with lining outward, is provided with the middle material embryo runner that is communicated with the described material cylinder of described middle material embryo entrance between described neck bush and described lining; Described lining is equipped with the material plug be fixedly connected with described push rod outward, and described material is equipped with the material cylinder sleeve beyond the Great Wall, is provided with the outer layered material embryo runner that is communicated with described outer layered material embryo entrance and described material cylinder between the wall of described material cylinder sleeve and described material cylinder.
As a kind of preferred technical scheme, described moulding die orifice comprises with described carries the core that core bar is fixedly connected with, and described core is provided with the mouth mould matched and be fixedly connected with described material casing wall outward.
Owing to having adopted technique scheme, single storage-cylinder three-layer plastic coextruding die head, comprise that die body, material feeding storing die body and moulding die orifice are regulated in the stacked and thick die body of tune that be fixed together, material feeding successively; Also comprise the core bar of carrying that runs through the thick die body of described tune, described material feeding adjusting die body and described material feeding storing die body, the described bottom of carrying core bar is connected with described moulding die orifice; Described material feeding storing die body comprises interior layered material embryo entrance, middle material embryo entrance and outer layered material embryo entrance, the be provided with interior layered material embryo runner that interior layered material embryo imported to described moulding die orifice corresponding to described interior layered material embryo entrance, the be provided with middle material embryo runner that middle material embryo imported to described moulding die orifice corresponding to described middle material embryo entrance, the be provided with outer layered material embryo runner that outer layered material embryo imported to described moulding die orifice corresponding to described outer layered material embryo entrance; During work, three material embryo entrance charging simultaneously embryos, outward,, interior layered material embryo enters in the storage cavity of material feeding storing die body and converged by own corresponding material embryo runner respectively, then three layered material embryos are simultaneously by the extrusion modling of moulding die orifice, one-shot forming, between each layer of plastics, fit tightly, solid non-leakage; Utilize and adjust thick die body to be regulated the moulding die orifice, and then be adjusted to the thickness of plastic.
The accompanying drawing explanation
Accompanying drawing is the structural representation of the embodiment of the present invention;
In figure: layered material embryo entrance in 1-; 2-middle material embryo entrance; The outer layered material embryo entrance of 3-; 4-internal layer plug; 5-expects cylinder sleeve; The 6-connector; The 7-lining; 8-expects cylinder; The 9-neck bush; 10-plug junctor; 11-takes over a business; 12-carries core bar; 13-material feeding piston rod; 14-material feeding piston; 15-adjusts thick piston; 16-adjusts thick piston rod; The 17-push rod; The 18-pull bar; 19-expects plug; The 20-core; 21-mouth mould; The 22-Connection Block.
The specific embodiment
Below in conjunction with drawings and Examples, further set forth the present invention.In the following detailed description, only by the mode of explanation, some example embodiment of the present invention has been described.Undoubtedly, those of ordinary skill in the art can recognize, in the situation that without departing from the spirit and scope of the present invention, can to described embodiment, be revised by various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than for limiting the protection domain of claim.
As shown in drawings, single storage-cylinder three-layer plastic coextruding die head, comprise that die body, material feeding storing die body and moulding die orifice are regulated in the stacked and thick die body of tune that be fixed together, material feeding successively; Also comprise run through that the thick die body of described tune, described material feeding regulate die body, described material feeding storing die body carry core bar 12, the described bottom of carrying core bar 12 is connected with described moulding die orifice, the thick die body of described tune comprises adjusts thick cylinder, be equipped with in the thick cylinder of described tune and adjust thick piston 15, the thick piston 15 of described tune is fixedly connected with adjusts thick piston rod 16, and the thick piston rod 16 of described tune is fixedly connected with the described core bar 12 of carrying; Described material feeding is regulated die body and is comprised the material feeding oil cylinder, in described material feeding oil cylinder, material feeding piston 14 is installed, described material feeding piston 14 is fixedly connected with material feeding piston rod 13, described material feeding piston rod 13 is socketed in described carrying on core bar 12, the bottom of described material feeding piston rod 13 is installed with 11, describedly takes over a business 11 bottom and is installed with push rod 17, in the present embodiment, push rod 17 is provided with three, and described push rod 17 lower ends are fixedly connected on described material feeding storing die body; Described moulding die orifice comprises and the described core 20 that core bar 12 is fixedly connected with, the outer mouth mould 21 matched and be fixedly connected with described material cylinder 8 walls that is provided with of described core 20 carried;
Described material feeding storing die body also comprises material cylinder 8, described material cylinder 8 is provided with interior layered material embryo entrance 1, middle material embryo entrance 2 and outer layered material embryo entrance 3, be provided with internal layer plug 4 and plug junctor 10 in described material cylinder 8, the external diameter of plug junctor 10 is greater than the external diameter of internal layer plug 4, and the junction of internal layer plug 4 and plug junctor 10 is provided with the transition region that internal layer plug 4 outer radial plug junctors 10 gradually change; Described internal layer plug 4 is outer is equipped with neck bush 9, is provided with the interior layered material embryo runner that is communicated with described interior layered material embryo entrance 1 and described material cylinder 8 between described neck bush 9 and described internal layer plug 4; Described neck bush 9 is outer is equipped with lining 7, is provided with the middle material embryo runner that is communicated with described middle material embryo entrance 2 described material cylinders 8 between described neck bush 9 and described lining 7; The outer material plug 19 be fixedly connected with described push rod 17 that is equipped with of described lining 7, the outer material cylinder sleeve 5 that is equipped with of described material plug 19, be provided with the outer layered material embryo runner that is communicated with described outer layered material embryo entrance 3 and described material cylinder 8 between the wall of described material cylinder sleeve 5 and described material cylinder 8.The top of described material cylinder 8, material cylinder sleeve 5, material plug 19 and lining 7 is provided with Connection Block 22, the upper end of Connection Block 22 is provided with pull bar 18, pull bar 18 be arranged in parallel with push rod 17, the bottom of connector 6 is provided with the annular connector 6 to downward-extension, connector 6 is between material cylinder sleeve 5 and lining 7, and push rod 17 runs through Connection Block 22 and connector 6, bottom are fixedly connected on material plug 19.With adjust thick piston rod 16 to be fixedly connected with carry core bar 12 to downward-extension, through described plug 4, with described plug junctor 10, directly with the core 20 of moulding die orifice, be fixedly connected with, so can be directly by pulling, carry core bar 12 and regulate the gap length between core 20 and mouthful mould 21, thereby reach the purpose that is adjusted to plastic thickness.
Operation principle:
Plastics A, the B of three kinds of different colours, C enter into material cylinder 8 by interior layered material embryo entrance 1, middle material embryo entrance 2 and outer layered material embryo entrance 3 and with above-mentioned interior layered material embryo runner, middle material embryo runner and the outer layered material embryo runner that enters the corresponding setting of embryo mouth respectively.
The A plastic warp is crossed interior layered material embryo entrance 1, through material cylinder 8 walls, material cylinder sleeve 5, Connection Block 22, lining 7, neck bush 9, arrive in the interior layered material embryo runner formed between internal layer plug 4 and neck bush 9, the A plastics flow downward in interior layered material embryo runner, the exit of layered material embryo runner, the i.e. contact position of internal layer plug 4, plug junctor 10 and neck bush 9 in arriving;
The B plastic warp is crossed middle material embryo entrance 2, through material cylinder 8 walls, material cylinder sleeve 5, Connection Block 22, lining 7, arrive in the middle material embryo runner formed between lining 7 and neck bush 9, the B plastics flow downward in middle material embryo runner, arrive the exit of middle material embryo runner, i.e. the contact position of neck bush 9, lining 7 and plug junctor 10, now, the A plastic bonding in the exit of B plastics and interior layered material embryo runner, form the fluid of two layers of plastic, then along plug junctor 10, flow downward and enter in material cylinder 8
The C plastic warp is crossed outer layered material embryo entrance 3, through material cylinder 8 walls, arrives in the outer layered material embryo runner formed between material cylinder 8 walls and material cylinder sleeve 5, and the C plastics flow downward in runner, arrive outer layered material embryo runner exit place, then along material cylinder 8 walls, flows downward and enters in material cylinder 8.
After A plastics, B plastics, C plastics fill up accumulator 8, material feeding piston 14 and material plug 19 meeting the highest positions in the material feeding oil cylinder, by hydraulic action material feeding piston 14, move downward, act on material feeding piston rod 13 and take over a business on 11, take over a business the downward pot plunger 19 of 11 promotion push rod 17, plastics are extruded and formed the material embryo by the die orifice between mouth mould 21 and core 20.In material plug 19 presses to the process of material feeding, adjust thick piston 15 meetings constantly by exchanging thick piston rod 16 application of forces, and then pull and carry core bar 12 and move up and down to regulate the gap between core 20 and mouthful mould 21, realize regulating the purpose of material flake thickness degree, then make product by air blowing, pressurize, typing.
In this technical scheme, can utilize a die head moulding three-layer plastic container, and can be as required, to the thick automatic control and adjustment of carrying out of moulding plastics wall of a container.Due to three-layer plastic, finally in the one-shot forming of a moulding die orifice, between each layer of plastics of product of producing like this, fit tightly, solid non-leakage.
What foregoing was described is single storage-cylinder three-layer plastic coextruding die head, variation as the technical program, also can expect by increase the mode of embryo entrance and material embryo runner to change this list storage-cylinder three-layer plastic coextruding die head into single accumulator formula four layers of plastic co-extrusion die head even more multi-layered.
Above demonstration and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (3)
1. single storage-cylinder three-layer plastic coextruding die head, comprise that die body, material feeding storing die body and moulding die orifice are regulated in the stacked and thick die body of tune that be fixed together, material feeding successively; Also comprise the core bar of carrying that runs through the thick die body of described tune, described material feeding adjusting die body and described material feeding storing die body, the described bottom of carrying core bar is connected with described moulding die orifice; It is characterized in that:
Described material feeding storing die body comprises interior layered material embryo entrance, middle material embryo entrance and outer layered material embryo entrance, the be provided with interior layered material embryo runner that interior layered material embryo imported to described moulding die orifice corresponding to described interior layered material embryo entrance, the be provided with middle material embryo runner that middle material embryo imported to described moulding die orifice corresponding to described middle material embryo entrance, the be provided with outer layered material embryo runner that outer layered material embryo imported to described moulding die orifice corresponding to described outer layered material embryo entrance;
Described material feeding is regulated die body and is comprised the material feeding oil cylinder, in described material feeding oil cylinder, the material feeding piston is installed, described material feeding piston is fixedly connected with the material feeding piston rod, the bottom of described material feeding piston rod is installed with, described bottom of taking over a business is installed with push rod, and described push rod lower end is fixedly connected on described material feeding storing die body;
Described material feeding storing die body comprises the material cylinder, described carrying on core bar in described material cylinder is set with internal layer plug and plug junctor, the junction of described internal layer plug and described plug junctor is provided with the transition region that the radially described plug junctor of described internal layer mandrel outer gradually changes, described internal layer mandrel outer is equipped with neck bush, is provided with the interior layered material embryo runner that is communicated with described interior layered material embryo entrance and described material cylinder between described neck bush and described internal layer plug; Described neck bush is equipped with lining outward, is provided with the middle material embryo runner that is communicated with the described material cylinder of described middle material embryo entrance between described neck bush and described lining; Described lining is equipped with the material plug be fixedly connected with described push rod outward, and described material is equipped with the material cylinder sleeve beyond the Great Wall, is provided with the outer layered material embryo runner that is communicated with described outer layered material embryo entrance and described material cylinder between the wall of described material cylinder sleeve and described material cylinder.
2. single storage-cylinder three-layer plastic coextruding die head as claimed in claim 1, it is characterized in that: the thick die body of described tune comprises adjusts thick cylinder, be equipped with in the thick cylinder of described tune and adjust thick piston, the thick piston of described tune to be fixedly connected with the thick piston rod of tune, the thick piston rod of described tune is fixedly connected with the described core bar of carrying.
3. single storage-cylinder three-layer plastic coextruding die head as claimed in claim 1 is characterized in that: described moulding die orifice comprises with described carries the core that core bar is fixedly connected with, and described core is provided with the mouth mould matched and be fixedly connected with described material casing wall outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110137499.7A CN102241122B (en) | 2011-05-26 | 2011-05-26 | Single storage type three-layer plastic co-extrusion die head |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110137499.7A CN102241122B (en) | 2011-05-26 | 2011-05-26 | Single storage type three-layer plastic co-extrusion die head |
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| CN102241122A CN102241122A (en) | 2011-11-16 |
| CN102241122B true CN102241122B (en) | 2014-01-01 |
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| CN201110137499.7A Active CN102241122B (en) | 2011-05-26 | 2011-05-26 | Single storage type three-layer plastic co-extrusion die head |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102555186A (en) * | 2012-01-18 | 2012-07-11 | 潍坊市新恒达机械有限公司 | Three-layer machine head for blowing molding machine and method for manufacturing three-layer hollow blank with foaming intermediate layer |
| CN106182682A (en) * | 2016-08-26 | 2016-12-07 | 徐州耐克盾机械制造有限公司 | A kind of multilayered storage cylinder mould extrusion nozzle |
| CN110014596A (en) * | 2018-01-01 | 2019-07-16 | 广东明氏塑胶科技有限公司 | A kind of π shape synthesis extrusion die |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5055023A (en) * | 1986-10-17 | 1991-10-08 | Richter Guenter | Apparatus for manufacturing large-volume hollow bodies of plastics material having multiple-layer walls |
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| CN202062624U (en) * | 2011-05-26 | 2011-12-07 | 潍坊市华玉塑料机械有限公司 | Single-storage-cylinder three-layer plastic coextruding die head |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5055023A (en) * | 1986-10-17 | 1991-10-08 | Richter Guenter | Apparatus for manufacturing large-volume hollow bodies of plastics material having multiple-layer walls |
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