CN2759759Y - Cone extrusion tubular mechanism of injection machine - Google Patents

Cone extrusion tubular mechanism of injection machine Download PDF

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Publication number
CN2759759Y
CN2759759Y CN 200520053806 CN200520053806U CN2759759Y CN 2759759 Y CN2759759 Y CN 2759759Y CN 200520053806 CN200520053806 CN 200520053806 CN 200520053806 U CN200520053806 U CN 200520053806U CN 2759759 Y CN2759759 Y CN 2759759Y
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CN
China
Prior art keywords
screw rod
barrel
conical
utility
injection machine
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 200520053806
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Chinese (zh)
Inventor
覃通衡
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覃通衡
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Priority to CN 200520053806 priority Critical patent/CN2759759Y/en
Application granted granted Critical
Publication of CN2759759Y publication Critical patent/CN2759759Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a conical extrusion tubular mechanism of an injection machine, which comprises a feed barrel and a screw rod which is arranged in the feed barrel. The utility model is characterized in that a passage of the feed barrel is a conical passage, and the screw rod is a conical screw rod. The outer diameter of the screw rod becomes small gradually, so the cross-section area of a flow channel formed by the screw rod and the feed barrel is changed from big to small to achieve the purpose of compressing gelatinous plastics. An extrusion barrel with the variational cross-sectional area of the flow channel can cause the pressure of the gelatinous plastics in the flow channel to increase and to cause the flow speed to accelerate, so the distribution mixing ability and the disperse mixing ability of the gelatinous plastics can be improved in the process. The conical extrusion tubular mechanism of an injection machine of the utility model has scientific design, reasonable and simple structure, and the utility model has the advantages of good mixing effect, etc. and can enhance plasticizing quality and yield as compared with the existing isometric structure extrusion barrel of the injection machine.

Description

Injection moulding machine conical extrusion cylinder mechanism
Technical field
The utility model relates to the injection machine recipient, especially a kind of injection moulding machine conical extrusion cylinder mechanism.
Technical background
Injection molding machine of plastic is an industrial circle equipment commonly used, and they comprise: injection machine, inflation film manufacturing machine, plastic granulator machine, plastic cement ginseng look machine, plastic cement reclaiming machine.With the extrusion cylinder mechanism of extruding after the raw material mixing is the important component part of the said equipment, the pressing mechanism of injection machine is made up of barrel and the screw rod that sets within it usually, its course of work is: plastic raw materials constantly enters barrel, by the screw rod that rotates the graininess plastic raw materials is pushed and to be moved forward, be subjected to the heating of the peripheral electric heater unit of barrel, graininess plastics in the barrel are dissolved agglutination, and molten refining under the screw acting that rotates, be injected into different die cavity rush at the extrusion of barrel with the spiral line after.This shows that the performance quality of pressing mechanism can directly influence the plasticizing quality and the output of injection machine.The existing pressing mechanism that waits gauge structure barrel and screw rod to constitute and since the cross section of fluid channel that screw rod and barrel form long-pending be constant, so gluey plastics traveling process in runner only is the extruding between molten material, can't improve the plasticizing of plastics and strengthen the effect of molten refining.
Summary of the invention
The purpose of this utility model is the deficiency at above-mentioned existence, and a kind of plasticizing quality and output that can improve injection machine greatly is provided, and is applicable to the injection moulding machine conical extrusion cylinder mechanism that various injection machines are installed and used.
The utility model injection moulding machine conical extrusion cylinder mechanism comprises: barrel and the screw rod that sets within it, and it is characterized in that: the barrel passage is a tapered channel, screw rod is a conical screw.
The pitch S of described conical screw is identical or changes.
The spiral groove depth H of described conical screw is identical or changes.
The design principle of the utility model injection moulding machine conical extrusion cylinder mechanism is: utilize reducing gradually of screw rod external diameter, the long-pending purpose that reaches the gluey plastics of compression from large to small of the cross section of fluid channel that screw rod and barrel are formed.The long-pending recipient that changes of cross section of fluid channel can make gluey plastic pressure increase, the flow velocity in the runner accelerate, and process improves distribution and the dispersion milling ability to gluey plastics thus.
The utility model injection moulding machine conical extrusion cylinder mechanism design science, rational in infrastructure, simple, it is compared with the existing gauge structure injection machine recipient that waits, and it is good to have a melting effect, improves advantages such as plasticizing quality and output.
The concrete structure of the utility model injection moulding machine conical extrusion cylinder mechanism is provided in detail by the following drawings and embodiment.
Description of drawings
Fig. 1 is the structural representation of injection moulding machine conical extrusion cylinder mechanism;
Fig. 2 is the another kind of structural representation of injection moulding machine conical extrusion cylinder mechanism;
Fig. 3 is another structural representation of injection moulding machine conical extrusion cylinder mechanism.
The specific embodiment
Embodiment 1: can be clear that from Fig. 1 injection moulding machine conical extrusion cylinder mechanism is made up of barrel 1 and screw rod 2, be provided with tapered channel 11 in the described barrel 1, barrel 1 is provided with the hopper 12 that communicates with tapered channel 11; Described screw rod 2 is a conical screw, and the tapering of screw rod 2 is identical with the tapering of the tapered channel 11 of barrel 1, and the pitch S of screw rod 2 and screw channel 21 depth H are constant.Screw rod 2 is plugged in the tapered channel 11 of barrel 1, and the runner 3 of 11 formation of tapered channel of the screw channel 21 of screw rod 2 and barrel 1 reduces gradually and narrows down with screw rod 2 external diameters.
During use, plastic raw materials constantly enters barrel 1, by the screw rod 2 that rotates the graininess plastics are pushed and to be moved forward, be subjected to the heating of barrel 1 peripheral electric heater unit, graininess plastics in the barrel 1 are dissolved agglutination, and molten refining under screw rod 2 effects of rotating, be injected into different die cavity rush at the extrusion of barrel 1 with the spiral line after.The sectional area of screw rod runner 3 reduces gradually owing to flow through, and it can make gluey plastic pressure increase, flow velocity in the runner accelerate, thereby improves distribution and dispersion milling ability to gluey plastics.
Embodiment 2: Fig. 2 is the another kind of structural representation of injection moulding machine conical extrusion cylinder mechanism, and its basic structure is identical with embodiment 1, and difference is: screw channel 21 depth H of screw rod 2 change, and the depth H of screw channel 21 from depth to shallow.
The runner that it can make barrel 1 and screw rod 2 form changes and increases, and the gluey plastics pressurized in the runner adds huge, and its flow velocity is more accelerated, and the distribution of gluey plastics and dispersion milling ability further improve.
Embodiment 3: Fig. 3 is that another is an injection moulding machine conical extrusion cylinder mechanism, and its basic structure is identical with embodiment 2, and difference is: on the screw channel 21 depth H basis from depth to shallow of screw rod 2, the pitch S that makes screw rod 2 again from large to small.The runner that barrel 1 and screw rod 2 are formed changes further and increases, and the gluey plastics pressurized in the runner is more increased, and its flow velocity is more accelerated, and the distribution of gluey plastics and dispersion milling ability further improve.

Claims (3)

1, a kind of injection moulding machine conical extrusion cylinder mechanism comprises: barrel and the screw rod that sets within it, and it is characterized in that: the barrel passage is a tapered channel, screw rod is a conical screw.
2, injection moulding machine conical extrusion cylinder mechanism according to claim 1 is characterized in that: screw channel (21) depth H of screw rod (2) is identical or changes.
3, injection moulding machine conical extrusion cylinder mechanism according to claim 1 and 2 is characterized in that: the pitch S of screw rod (2) is identical or changes.
CN 200520053806 2005-01-13 2005-01-13 Cone extrusion tubular mechanism of injection machine Expired - Fee Related CN2759759Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520053806 CN2759759Y (en) 2005-01-13 2005-01-13 Cone extrusion tubular mechanism of injection machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520053806 CN2759759Y (en) 2005-01-13 2005-01-13 Cone extrusion tubular mechanism of injection machine

Publications (1)

Publication Number Publication Date
CN2759759Y true CN2759759Y (en) 2006-02-22

Family

ID=36081960

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520053806 Expired - Fee Related CN2759759Y (en) 2005-01-13 2005-01-13 Cone extrusion tubular mechanism of injection machine

Country Status (1)

Country Link
CN (1) CN2759759Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT521318A1 (en) * 2018-06-12 2019-12-15 Mms Modular Molding Systems Gmbh injection molding machine
AT17145U1 (en) * 2018-06-12 2021-07-15 Mms Modular Molding Systems Gmbh INJECTION MOLDING MACHINE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT521318A1 (en) * 2018-06-12 2019-12-15 Mms Modular Molding Systems Gmbh injection molding machine
AT17145U1 (en) * 2018-06-12 2021-07-15 Mms Modular Molding Systems Gmbh INJECTION MOLDING MACHINE

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C19 Lapse of patent right due to non-payment of the annual fee
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