CN204622478U - A kind of sprue bush - Google Patents

A kind of sprue bush Download PDF

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Publication number
CN204622478U
CN204622478U CN201520047229.0U CN201520047229U CN204622478U CN 204622478 U CN204622478 U CN 204622478U CN 201520047229 U CN201520047229 U CN 201520047229U CN 204622478 U CN204622478 U CN 204622478U
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CN
China
Prior art keywords
sprue
sprue bush
bellmouth
taper
bush body
Prior art date
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
CN201520047229.0U
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Chinese (zh)
Inventor
李耀辉
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Suzhou Vocational University
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Suzhou Vocational University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Vocational University filed Critical Suzhou Vocational University
Priority to CN201520047229.0U priority Critical patent/CN204622478U/en
Application granted granted Critical
Publication of CN204622478U publication Critical patent/CN204622478U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of sprue bush, comprising: sprue bush body, sprue bush body central axle place is provided with bellmouth and taper sprue; Described sprue bush body is rounded shoulder formula structure; Described bellmouth is located at the center of the large end of described sprue bush, and described bellmouth is to the large end end face expansion of sprue bush; Described taper sprue is communicated with described bellmouth, and taper sprue is expanded to sprue bush body small end; Described bellmouth and taper sprue joint are provided with ball recess.By the way, the utility model can accelerate filling velocity and the flow rate of plastics, shortens molding cycle; Cost is low, is applicable to the injection moulding occasion of shaping complexity, massive article, has good application prospect and practical significance.

Description

A kind of sprue bush
Technical field
The utility model relates to mechanical-moulded field, particularly relates to a kind of sprue bush.
Background technology
Injection mold is the important process equipment during plastics injection moulding is produced, and it is generally made up of six Iarge-scale system, forms the fixed half and moving half part of mould respectively.And running gate system is an important component part in injection mold six Iarge-scale system, it refers to by the feeding-passage nozzle of injector to die cavity in mould, is generally made up of sprue, runner, cast gate and slag well.Traditional sprue bush structure, no matter be monoblock type form sprue bush and centring ring being designed to one, or sprue bush and centring ring are designed to the split type form of two parts, the spherical structure connecting nozzle of injector in sprue bush is generally arranged on the large end stand shoulder place of sprue bush, and namely sprue bush is connected the upper surface of one end with injector.In traditional sprue bush structure, flow channel length is longer, thus it is comparatively large to cause in sprue solidifying material volume, the consumption of waste plastic raw materials, and due to sprue long, make molding cycle longer, impact injection production efficiency.Therefore, under the prerequisite not affecting process of injection molding and plastic part quality, how appropriate design sprue bush structure, reduce running gate system solidifying material volume as far as possible, reduce raw materials for plastics production consumption, for reduction production cost, increase economic efficiency and have a very big significance.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of sprue bush, can accelerate filling velocity and the flow rate of plastics, shortens molding cycle; Cost is low, is applicable to the injection moulding occasion of shaping complexity, massive article, has good application prospect and practical significance.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of sprue bush, comprising: sprue bush body, sprue bush body central axle place is provided with bellmouth and taper sprue; Described sprue bush body is rounded shoulder formula structure; Described bellmouth is located at the center of the large end of described sprue bush, and described bellmouth is to the large end end face expansion of sprue bush; Described taper sprue is communicated with described bellmouth, and taper sprue is expanded to sprue bush body small end; Described bellmouth and taper sprue joint are provided with ball recess.
Preferably, the degree of depth of described bellmouth is the half of sprue bush body height of shoulder, and bellmouth tapering is 14 ° ~ 16 °; Spherical radius 0.5mm ~ the 1.5mm larger than the radius of injection machine injection nozzle of described ball recess; The tapering of described taper sprue is 1 ° ~ 3 °, and the surface roughness of taper sprue is 0.3 μm ~ 0.5 μm.
Preferably, the large end of described sprue bush body is distributed with screw hole; Described sprue bush body is fixed on top clamping plate by screw hole, and sprue bush body small end is arranged in caster and mother module core.
The beneficial effects of the utility model are: the utility model can accelerate filling velocity and the flow rate of plastics, shorten molding cycle; Cost is low, is applicable to the injection moulding occasion of shaping complexity, massive article, has good application prospect and practical significance.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of a kind of sprue bush one of the utility model preferred embodiment;
Fig. 2 is the plan structure schematic diagram of a kind of sprue bush of the utility model;
In accompanying drawing, the mark of each parts is as follows: 1, bellmouth; 2, spherical structure; 3, screw hole; 4, taper sprue; 5, sprue bush body.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
Refer to Fig. 1 and Fig. 2, the utility model embodiment comprises:
A kind of sprue bush, comprising: bellmouth 1, spherical structure 2, screw hole 3, taper sprue 4 and sprue bush body 5; The outer surface of described sprue bush body 5 is rounded shoulder formula structure; The large end of described sprue bush body 5 is distributed with described screw hole 3, and the center that sprue bush body 5 is held greatly has described bellmouth 1, and bellmouth 1 holds expansion greatly to sprue bush body 5; The below of described bellmouth 1 is provided with the described spherical structure 2 be connected with injector; The below of described spherical structure 2 is provided with described taper sprue 4, and taper sprue 4 is expanded to sprue bush body 5 small end.The degree of depth of described bellmouth 1 is the half of height of shoulder, and tapering is 15 °, better can coordinate with injector, coordinates easily and fast; The spherical radius 1mm larger than the radius of injection machine injection nozzle of described spherical structure 2, can make injection machine injection nozzle better aim at described taper sprue 4, ensures the Fast Filling of plastics; The tapering of described taper sprue 4 is 2 °, because cooled and solidified results in blockage on sprue tube wall when can effectively avoid plastics to circulate; The surface roughness of taper sprue 4 is 0.4 μm, and melted material can be made better to flow through, and injection moulding is effective.Described sprue bush body 5 is fixed on top clamping plate by described screw hole 3, and the small end of sprue bush body 5 is arranged in caster and mother module core, and this makes taper sprue 4 contraction in length in sprue bush body 5, thus greatly reduces running gate system solidifying material volume; Shorten sprue bush body 5 length to a certain extent simultaneously, filling velocity and the flow rate of plastics can be accelerated, shorten molding cycle.
In another embodiment, a kind of sprue bush, comprising: bellmouth 1, spherical structure 2, screw hole 3, taper sprue 4 and sprue bush body 5; The outer surface of described sprue bush body 5 is rounded shoulder formula structure; The large end of described sprue bush body 5 is distributed with described screw hole 3, and the center that sprue bush body 5 is held greatly has described bellmouth 1, and bellmouth 1 holds expansion greatly to sprue bush body 5; The below of described bellmouth 1 is provided with the described spherical structure 2 be connected with injector; The below of described spherical structure 2 is provided with described taper sprue 4, and taper sprue 4 is expanded to sprue bush body 5 small end.The degree of depth of described bellmouth 1 is the half of height of shoulder, and tapering is 16 °, better can coordinate with injector, coordinates easily and fast; The spherical radius 1.5mm larger than the radius of injection machine injection nozzle of described spherical structure 2, can make injection machine injection nozzle better aim at described taper sprue 4, ensures the Fast Filling of plastics; The tapering of described taper sprue 4 is 3 °, because cooled and solidified results in blockage on sprue tube wall when can effectively avoid plastics to circulate; The surface roughness of taper sprue 4 is 0.3 μm, and melted material can be made better to flow through, and injection moulding is effective.Described sprue bush body 5 is fixed on top clamping plate by described screw hole 3, and the small end of sprue bush body 5 is arranged in caster and mother module core, and this makes taper sprue 4 contraction in length in sprue bush body 5, thus greatly reduces running gate system solidifying material volume; Shorten sprue bush body 5 length to a certain extent simultaneously, filling velocity and the flow rate of plastics can be accelerated, shorten molding cycle.
The utility model can accelerate filling velocity and the flow rate of plastics, shortens molding cycle; Cost is low, is applicable to the injection moulding occasion of shaping complexity, massive article, has good application prospect and practical significance.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims (3)

1. a sprue bush, is characterized in that, comprising: sprue bush body, and sprue bush body central axle place is provided with bellmouth and taper sprue; Described sprue bush body is rounded shoulder formula structure; Described bellmouth is located at the center of the large end of described sprue bush, and described bellmouth is to the large end end face expansion of sprue bush; Described taper sprue is communicated with described bellmouth, and taper sprue is expanded to sprue bush body small end; Described bellmouth and taper sprue joint are provided with ball recess.
2. a kind of sprue bush according to claim 1, is characterized in that: the degree of depth of described bellmouth is the half of sprue bush body height of shoulder, and bellmouth tapering is 14 ° ~ 16 °; Spherical radius 0.5mm ~ the 1.5mm larger than the radius of injection machine injection nozzle of described ball recess; The tapering of described taper sprue is 1 ° ~ 3 °, and the surface roughness of taper sprue is 0.3 μm ~ 0.5 μm.
3. a kind of sprue bush according to claim 1, is characterized in that: the large end of described sprue bush body is distributed with screw hole; Described sprue bush body is fixed on top clamping plate by screw hole, and sprue bush body small end is arranged in caster and mother module core.
CN201520047229.0U 2015-01-23 2015-01-23 A kind of sprue bush Expired - Fee Related CN204622478U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520047229.0U CN204622478U (en) 2015-01-23 2015-01-23 A kind of sprue bush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520047229.0U CN204622478U (en) 2015-01-23 2015-01-23 A kind of sprue bush

Publications (1)

Publication Number Publication Date
CN204622478U true CN204622478U (en) 2015-09-09

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Family Applications (1)

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Country Status (1)

Country Link
CN (1) CN204622478U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104626472A (en) * 2015-01-23 2015-05-20 苏州市职业大学 Sprue bush
CN105881829A (en) * 2016-06-17 2016-08-24 苏州市相城区陆慕鑫诚精密模具厂 Single-runner round sprue
CN105922516A (en) * 2016-06-17 2016-09-07 苏州市相城区陆慕鑫诚精密模具厂 Double-runner circular sprue

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104626472A (en) * 2015-01-23 2015-05-20 苏州市职业大学 Sprue bush
CN105881829A (en) * 2016-06-17 2016-08-24 苏州市相城区陆慕鑫诚精密模具厂 Single-runner round sprue
CN105922516A (en) * 2016-06-17 2016-09-07 苏州市相城区陆慕鑫诚精密模具厂 Double-runner circular sprue

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150909

Termination date: 20160123

EXPY Termination of patent right or utility model