CN202702576U - Accumulator die head for producing three-layer plastic containers with liquid level lines - Google Patents
Accumulator die head for producing three-layer plastic containers with liquid level lines Download PDFInfo
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- CN202702576U CN202702576U CN2012202289493U CN201220228949U CN202702576U CN 202702576 U CN202702576 U CN 202702576U CN 2012202289493 U CN2012202289493 U CN 2012202289493U CN 201220228949 U CN201220228949 U CN 201220228949U CN 202702576 U CN202702576 U CN 202702576U
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Abstract
The utility model discloses an accumulator die head for producing three-layer plastic containers with liquid level lines. The accumulator die head comprises a thickness adjusting die body, an injection adjusting die body, an injection accumulation die body and a forming die orifice which are sequentially stacked and connected with one another. The accumulator die head further comprises a core lifting rod penetrating through the accumulator die. The bottom end of the core lifting rod is connected with the forming orifice. The injection accumulation die body comprises an outer-layer feed inlet, a middle-layer feed inlet, an inner-layer feed inlet and corresponding flow channels. A liquid level line forming device is disposed between the injection accumulation die body and the forming orifice. During operation, feeding is performed at the three feed inlets simultaneously, outer-layer blank, middle-layer blank and inner-layer blank enter in an accumulating cavity of an accumulating die body and combine in the same, the three layers of plastics are formed once through the liquid level line forming device and the forming orifice in a extrusion forming manner, and accordingly the three layers of plastics are tightly attached to one another, firm and free of leakage. Longitudinal transparent liquid level lines are formed on the formed plastics by the liquid level line forming device, so that liquid level of contained liquid can be observed conveniently.
Description
Technical field
The utility model relates to a kind of plastic molding machinery, relates in particular to a kind of die head with accumulator of blow moulding machine of moulding three-layer plastic container.
Background technology
Along with improving constantly of people life and the requirement of producing, the volume of the hollow plastic container that people need is also increasing, and is also more and more higher to the quality requirement of container.Such as three layers Plastic Drums and plastic automotive fuel tank etc.
Take three layers plastic automotive fuel tanks as example, the plastic fuel tank that conventional method is made, product thickness is inhomogeneous, and 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 three layers, internal layer is antistatic, and skin is the uvioresistant layer, the 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, structure is all very complicated, can not regulate the wall thickness of the plastic containers of moulding, can only produce the plastic containers of single thickness, the wall thickness of plastic container of production is inhomogeneous, and layering is unclear, for the three-layer plastic container, if middle that layered material base is inhomogeneous, internal layer material base and outer material base can't with the well extrusion modling of middle level material base, and if wall unevenness even service life that can shorten plastic containers.
Existing this plastic containers are generally opaque, are not easy to see clearly liquid level in the use procedure, cause the inconvenience of use.
The utility model content
Technical problem to be solved in the utility model provides a kind of plastic container wall thickness and wall thickness of can being adjusted to and produces uniformly material storage cylinder mould head with the three-layer plastic container of liquid level line.
For solving the problems of the technologies described above, the technical solution of the utility model is: produce the material storage cylinder mould head with the three-layer plastic container of liquid level line, comprise that die body, material feeding storing die body and moulding die orifice are regulated in the thick die body of accent stacked and that be fixed together, material feeding successively; Also comprise the core bar of carrying that runs through the thick die body of described accent, 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 outer charging aperture, middle level charging aperture and internal layer charging aperture, the be provided with inner plastic runner that internal layer material base imported to described moulding die orifice corresponding to described internal layer charging aperture, the be provided with intercellar layer plastics runner that middle level material base imported to described moulding die orifice corresponding to described middle level charging aperture, the be provided with outer layer plastic runner that outer material base imported to described moulding die orifice corresponding to described outer charging aperture; Be provided with the liquid level line shaped device between described material feeding storing die body and the described moulding die orifice.
As a kind of preferred technical scheme, the thick die body of described accent comprises transfers thick cylinder, is equipped with in the thick cylinder of described accent and transfers thick piston, the thick piston of described accent to be fixedly connected with the thick piston rod of accent, and the thick piston rod of described accent 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 the described material feeding oil cylinder 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.
As a kind of preferred technical scheme, described material feeding storing die body comprises the material cylinder, the top of described material cylinder is installed with connector, be provided with plug in the described material cylinder, described mandrel outer is equipped with neck bush, described neck bush is equipped with external bushing outward, is provided with the inner plastic runner that is communicated with described internal layer charging aperture and described material cylinder between described neck bush and the described plug, is provided with the intercellar layer plastics runner that is communicated with described middle level charging aperture and described material cylinder between described neck bush and the described external bushing; Described external bushing is equipped with the material plug that is fixedly connected with described push rod outward, be provided with the material base guide channel that is communicated with described intercellar layer plastics runner in the described material plug, between described material plug and the described material casing wall material cylinder sleeve is installed, be provided with the outer layer plastic runner that is communicated with described outer charging aperture and described material cylinder between the wall of described material cylinder sleeve and described material cylinder, the described bottom of carrying core bar is passed described plug and is fixedly connected with described moulding die orifice, and the bottom of described plug is provided with transfers thick gathering sill.
As a kind of preferred technical scheme, described material plug comprises the material plug matrix that is fixedly connected with described push rod, the bottom of described material plug matrix is installed with in the material plug junctor and expects junctor beyond the Great Wall, described material base guide channel junctor and described material beyond the Great Wall between the junctor in described material plug matrix, described material plug.
As a kind of preferred technical scheme, described liquid level line shaped device comprises the body of accepting that is fixedly connected with described material cylinder, the end of described plug extends to described accepting in the body, described accepting is equipped with the material pin on the body wall, described material pin is provided with the transparent material inlet, is provided with the transparent material runner that is communicated with described transparent material inlet and described moulding die orifice in the described material pin; Described plug is provided with material cushion and connects fixing hole, and the end of described material pin is stretched into described material cushion and connect in the fixing hole.
As a kind of preferred technical scheme, described moulding die orifice comprises the core that is fixedly connected with the described bottom of carrying core bar, described core be provided with outward match and accept the mouth mould that body wall is fixedly connected with described; The top of described core extend in the thick gathering sill of described accent, and the degree of depth of the thick gathering sill of described accent is greater than the piston stroke of the thick piston of described accent.
Owing to having adopted technique scheme, produce the material storage cylinder mould head with the three-layer plastic container of liquid level line, comprise that die body, material feeding storing die body and moulding die orifice are regulated in the thick die body of accent stacked and that be fixed together, material feeding successively; Also comprise the core bar of carrying that runs through the thick die body of described accent, 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 outer charging aperture, middle level charging aperture and internal layer charging aperture, the be provided with inner plastic runner that internal layer material base imported to described moulding die orifice corresponding to described internal layer charging aperture, the be provided with intercellar layer plastics runner that middle level material base imported to described moulding die orifice corresponding to described middle level charging aperture, the be provided with outer layer plastic runner that outer material base imported to described moulding die orifice corresponding to described outer charging aperture; Be provided with the liquid level line shaped device between described material feeding storing die body and the described moulding die orifice; During work, three simultaneously charging of charging aperture bases, outward,, the internal layer material base respectively the plastic passages by correspondence enter in the storage cavity of material feeding storing die body and converge, then three-layer plastic is through the liquid level line shaped device and simultaneously by the extrusion modling of moulding die orifice, one-shot forming, fit tightly between each layer plastics, solid non-leakage; The liquid level line shaped device forms vertical transparent liquid level line at moulding plastics, is convenient to observe the liquid level of splendid attire; Utilize and transfer thick die body to regulate the moulding die orifice, and then be adjusted to the thickness of plastic; Material base even thickness in the middle of middle level material base material-homogenating device can make, after the extrusion modling, three layered material bases are combined closely, and have prolonged the long service life of plastic containers.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the full status architecture schematic diagram of the material cylinder storage cavity of the utility model embodiment;
Fig. 3 is A place enlarged drawing among Fig. 1;
Among the figure: 1-carries core bar; 21-transfers thick cylinder; 22-transfers thick piston; 23-transfers thick piston rod; 31-material feeding oil cylinder; 32-material feeding piston; 33-material feeding piston rod; 34-takes over a business; The 35-push rod; 411-internal layer charging aperture; 412-middle level charging aperture; The outer charging aperture of 413-; 42-expects cylinder; The 43-plug; The 441-external bushing; The 442-neck bush; 451-material plug matrix; Junctor in the 452-material plug; 453-expects junctor beyond the Great Wall; 46-transfers thick gathering sill; 47-expects cylinder sleeve; The 48-storage cavity; The 49-connector; The 51-cylinder flange; 52-material cylinder flange; The 53-pull bar; 61-accepts body; 62-expects pin; 63-transparent material inlet; 64-transparent material runner; The cushion of 65-material connects fixing hole; The 71-core; 72-mouth mould.
The specific embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.In the following detailed description, only by the mode of explanation some example embodiment of the present utility model has been described.Undoubtedly, those of ordinary skill in the art can recognize, in the situation that do not depart from spirit and scope of the present utility model, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used for the protection domain of restriction claim.
Such as Fig. 1, Fig. 2 and shown in Figure 3, produce the material storage cylinder mould head with the three-layer plastic container of liquid level line, comprise that die body, material feeding storing die body and moulding die orifice are regulated in the thick die body of accent stacked and that be fixed together, material feeding successively; Also comprise run through that the thick die body of described accent, described material feeding regulate die body and described material feeding storing die body carry core bar 1, the described bottom of carrying core bar 1 is connected with described moulding die orifice; Be provided with the liquid level line shaped device between described material feeding storing die body and the described moulding die orifice.
The thick die body of described accent comprises transfers thick cylinder 21, is equipped with in the thick cylinder 21 of described accent to transfer thick piston 22, the thick piston 22 of described accent to be fixedly connected with the thick piston rod 23 of accent, and the thick piston rod 23 of described accent is fixedly connected with the described core bar 1 of carrying.
Described material feeding is regulated die body and is comprised material feeding oil cylinder 31, in the described material feeding oil cylinder 31 material feeding piston 32 is installed, described material feeding piston 32 is fixedly connected with material feeding piston rod 33, the bottom of described material feeding piston rod 33 is installed with 34, describedly takes over a business 34 bottom and is installed with push rod 35, and push rod 35 can arrange two, three or four, be decided according to the actual requirements, originally be among the embodiment, three push rods 35 are set, described push rod 35 lower ends are fixedly connected on described material feeding storing die body; Describedly carry that core bar 1 passes described material feeding piston rod 33 and to downward-extension.
Described material feeding storing die body comprises material cylinder 42, the top of described material cylinder 42 is installed with connector 49, described connector 49 is provided with internal layer charging aperture 411 and middle level charging aperture 412, described material cylinder 42 is provided with outer charging aperture 413, be provided with plug 43 in the described material cylinder 42, the described plug 43 outer neck bush 442 that are equipped with, the described neck bush 442 outer external bushings 441 that are equipped with, the described external bushing 441 outer material plugs that are fixedly connected with described push rod 35 that are equipped with, material cylinder sleeve 47 is installed between described material plug and described material cylinder 42 walls, be provided with the inner plastic runner that is communicated with described material cylinder 42 storage cavitys 48 between described external bushing 441 and the described plug 43, described internal layer charging aperture 411 passes described connector 49, described external bushing 441 and described neck bush 442 and be communicated with described inner plastic runner; Be provided with the intercellar layer plastics runner that is communicated with described material cylinder 42 storage cavitys 48 between described lining and the described external bushing 441, described middle level charging aperture 412 passes described connector 49 and described external bushing 441 and is communicated with described intercellar layer plastics runner; Be provided with the outer layer plastic runner that is communicated with described material cylinder 42 storage cavitys 48 between the wall of described material cylinder sleeve 47 and described material cylinder 42, described outer charging aperture 413 passes described material cylinder 42 walls and is communicated with described outer layer plastic runner; The described bottom of carrying core bar 1 is passed described plug 43 and is fixedly connected with described moulding die orifice, and the bottom of described plug 43 is provided with transfers thick gathering sill 46.
In order to guarantee that three-layer plastic converges at same working position, namely for guarantee three-layer plastic enter in material cylinder 42 storage cavitys 48 outlet at grade, in described material plug, be provided with the material base guide channel that is communicated with described intercellar layer plastics runner, described material plug comprises the material plug matrix 451 that is fixedly connected with described push rod 35, the bottom of described material plug matrix 451 is installed with in the material plug junctor 452 and expects junctor 453 beyond the Great Wall, described material base guide channel junctor 452 and described material beyond the Great Wall between the junctor 453 in described material plug matrix 451, described material plug.
The bottom of described material feeding oil cylinder 31 is fixedly connected with cylinder flange 51, and described cylinder flange 51 is passed in the bottom of described material feeding piston rod 33; The top of described material cylinder 42 is equipped with the annular connector 49 to downward-extension, mainly work to be fixedly connected with all parts, the top of described connector 49 is fixedly connected with material cylinder flange 52, be fixedly connected with pull bar 53 between described material cylinder flange 52 and the cylinder flange 51, the number of pull bar 53 can be decided as the case may be, is provided with in the present embodiment four pull bars 53; The bottom of described push rod 35 is passed described material cylinder flange 52 and is fixedly connected with described connector 49 and with described material plug.
Described liquid level line shaped device comprises that the annular that is fixedly connected with described material cylinder 42 accepts body 61, the bottom of described plug 43 extends to described accepting in the body 61, described accepting is equipped with material pin 62 on the body 61, described material pin 62 is provided with transparent material inlet 63, be provided with the transparent material runner 64 that is communicated with described transparent material inlet 63 and described moulding die orifice in the described material pin 62, described plug 43 is provided with material cushion and connects fixing hole 65, and the end of described material pin 62 is stretched into described material cushion and connect in the fixing hole 65.
Described moulding die orifice comprises the core 71 that is fixedly connected with the described bottom of carrying core bar 1, described core 71 is outer be provided with match and accept the mouth mould 72 that body 61 walls are fixedly connected with described, form material base extrusion modling mouth between described mouthful of mould 72 and the described core 71; The top of described core 71 extend in the thick gathering sill 46 of described accent, and the degree of depth of the thick gathering sill 46 of described accent is greater than the piston stroke of the thick piston 22 of described accent.
With transfer that thick piston rod 23 is fixedly connected with carry core bar 1 to downward-extension, passing described plug 43 directly is fixedly connected with the core 71 of moulding die orifice, regulate gap length between core 71 and mouthful mould 72 so can be directly carry core bar 1 by pulling, thereby reach the purpose that is adjusted to plastic thickness.
Operation principle:
Inner plastic enters into material cylinder 42 by internal layer charging aperture 411 and with the inner plastic runner of internal layer charging aperture 411 corresponding settings, simultaneously, intercellar layer plastics enters into material cylinder 42 by middle level charging aperture 412 and with the intercellar layer plastics runner of middle level charging aperture 412 corresponding settings, outer layer plastic enters into material cylinder 42 by outer charging aperture 413 and with the outer layer plastic runner of outer charging aperture 413 corresponding settings, particularly, inner plastic passes described connector 49 successively, described external bushing 441 and described neck bush 442 arrive in the inner plastic runner that forms between described plug 43 and the described neck bush 442, intercellar layer plastics passes successively described connector 49 and described external bushing 441 arrives in the intercellar layer plastics runner that forms between described external bushing 441 and the described neck bush 442, outer layer plastic passes material cylinder 42 walls and arrives in the outer layer plastic runner that forms between material cylinder 42 walls and the material cylinder sleeve 47, inner plastic and outer layer plastic flow downward along inner plastic runner and outer layer plastic runner respectively, arrive the separately exit of runner; When not having plastics in the storage cavity 48 of material cylinder 42, the material plug is positioned at the least significant end of storage cavity 48, this moment, the inner plastic runner was from extending between neck bush 442 and the plug 43 between the interior junctor 452 of material plug and the plug 43, the intercellar layer plastics runner is from extending to the material base guide channel in the material plug between neck bush 442 and the external bushing 441, the outer layer plastic runner is expected beyond the Great Wall between the junctor 453 and material cylinder 42 walls from extending between material cylinder 42 walls and the material cylinder sleeve 47; In the process of filler, core 71 and a mouthful mould 72 are closed in the storage cavity 48 of material cylinder 42.
Fill up the storage cavity 48 of material cylinder 42 when plastics after, material feeding piston 32 and material plug be the highest position in material feeding oil cylinder 31 and material cylinder 42 respectively, it is the position shown in Fig. 2, move downward by hydraulic system effect material feeding piston 32, material feeding piston 32 acts on material feeding piston rod 33 and takes over a business on 34, take over a business 34 and promote push rod 35 downward pot plungers, the plastics in the storage cavity 48 move downward, and core 71 and a mouthful mould 72 are opened simultaneously; Plastics near core 71 and mouthful mould 72 places through punishment in advance pin 62, material pin 62 cuts out a longitudinal opening at plastics; Simultaneously, the high-performance extruder that is connected on the transparent material inlet 63 is clamp-oned transparent plastic in transparent material runner 64, transparent plastic flows to core 71 and mouthful mould 72 by transparent material runner 64, and this transparent plastic will expect that the longitudinal opening shutoff that pin 62 cuts out is dead, extruding through core 71 and mouthful mould 72, transparent plastic is integrated with the plastic shaping of expecting cylinder 62 storage cavitys 48, like this, forms the transparent liquid level line of a longitudinal strip at the material base of moulding.Press in the process of material feeding at the material plug, transfer thick piston 22 meetings constantly by exchanging thick piston rod 23 application of forces, and then pulling carries core bar 1 and moves up and down to regulate gap between core 71 and mouthful mould 72, and the purpose that realizes regulating material base thickness is made product by air blowing, pressurize, typing again.
Above demonstration and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. produce the material storage cylinder mould head with the three-layer plastic container of liquid level line, comprise that die body, material feeding storing die body and moulding die orifice are regulated in the thick die body of accent stacked and that be fixed together, material feeding successively; Also comprise the core bar of carrying that runs through the thick die body of described accent, 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 outer charging aperture, middle level charging aperture and internal layer charging aperture, the be provided with inner plastic runner that internal layer material base imported to described moulding die orifice corresponding to described internal layer charging aperture, the be provided with intercellar layer plastics runner that middle level material base imported to described moulding die orifice corresponding to described middle level charging aperture, the be provided with outer layer plastic runner that outer material base imported to described moulding die orifice corresponding to described outer charging aperture; Be provided with the liquid level line shaped device between described material feeding storing die body and the described moulding die orifice.
2. production as claimed in claim 1 is with the material storage cylinder mould head of the three-layer plastic container of liquid level line, it is characterized in that: the thick die body of described accent comprises transfers thick cylinder, be equipped with in the thick cylinder of described accent and transfer thick piston, the thick piston of described accent is fixedly connected with transfers thick piston rod, and the thick piston rod of described accent is fixedly connected with the described core bar of carrying.
3. production as claimed in claim 2 is with the material storage cylinder mould head of the three-layer plastic container of liquid level line, it is characterized in that: described material feeding is regulated die body and is comprised the material feeding oil cylinder, in the described material feeding oil cylinder 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.
4. production as claimed in claim 3 is with the material storage cylinder mould head of the three-layer plastic container of liquid level line, it is characterized in that: described material feeding storing die body comprises the material cylinder, the top of described material cylinder is installed with connector, be provided with plug in the described material cylinder, described mandrel outer is equipped with neck bush, described neck bush is equipped with external bushing outward, be provided with the inner plastic runner that is communicated with described internal layer charging aperture and described material cylinder between described neck bush and the described plug, be provided with the intercellar layer plastics runner that is communicated with described middle level charging aperture and described material cylinder between described neck bush and the described external bushing; Described external bushing is equipped with the material plug that is fixedly connected with described push rod outward, be provided with the material base guide channel that is communicated with described intercellar layer plastics runner in the described material plug, between described material plug and the described material casing wall material cylinder sleeve is installed, be provided with the outer layer plastic runner that is communicated with described outer charging aperture and described material cylinder between the wall of described material cylinder sleeve and described material cylinder, the described bottom of carrying core bar is passed described plug and is fixedly connected with described moulding die orifice, and the bottom of described plug is provided with transfers thick gathering sill.
5. production as claimed in claim 4 is with the material storage cylinder mould head of the three-layer plastic container of liquid level line, it is characterized in that: described material plug comprises the material plug matrix that is fixedly connected with described push rod, the bottom of described material plug matrix is installed with in the material plug junctor and expects junctor beyond the Great Wall, described material base guide channel junctor and described material beyond the Great Wall between the junctor in described material plug matrix, described material plug.
6. production as claimed in claim 4 is with the material storage cylinder mould head of the three-layer plastic container of liquid level line, it is characterized in that: described liquid level line shaped device comprises the body of accepting that is fixedly connected with described material cylinder, the end of described plug extends to described accepting in the body, described accepting is equipped with the material pin on the body wall, described material pin is provided with the transparent material inlet, is provided with the transparent material runner that is communicated with described transparent material inlet and described moulding die orifice in the described material pin; Described plug is provided with material cushion and connects fixing hole, and the end of described material pin is stretched into described material cushion and connect in the fixing hole.
7. production as claimed in claim 6 is with the material storage cylinder mould head of the three-layer plastic container of liquid level line, it is characterized in that: described moulding die orifice comprises the core that is fixedly connected with the described bottom of carrying core bar, described core be provided with outward match and accept the mouth mould that body wall is fixedly connected with described; The top of described core extend in the thick gathering sill of described accent, and the degree of depth of the thick gathering sill of described accent is greater than the piston stroke of the thick piston of described accent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202289493U CN202702576U (en) | 2012-05-22 | 2012-05-22 | Accumulator die head for producing three-layer plastic containers with liquid level lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202289493U CN202702576U (en) | 2012-05-22 | 2012-05-22 | Accumulator die head for producing three-layer plastic containers with liquid level lines |
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| Publication Number | Publication Date |
|---|---|
| CN202702576U true CN202702576U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202289493U Expired - Fee Related CN202702576U (en) | 2012-05-22 | 2012-05-22 | Accumulator die head for producing three-layer plastic containers with liquid level lines |
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| CN (1) | CN202702576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216266A (en) * | 2015-10-29 | 2016-01-06 | 潍坊市华玉塑料机械有限公司 | Single accumulator formula five-layer co-squeezing plastic hollow molding die |
-
2012
- 2012-05-22 CN CN2012202289493U patent/CN202702576U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216266A (en) * | 2015-10-29 | 2016-01-06 | 潍坊市华玉塑料机械有限公司 | Single accumulator formula five-layer co-squeezing plastic hollow molding die |
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Granted publication date: 20130130 Termination date: 20150522 |
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