CN206277602U - A kind of permanent low temperature sprue bush - Google Patents

Abstract

The utility model discloses a kind of permanent low temperature sprue bush, its structure includes sprue set, sheath, temperature sensor, elbow, copper pipe, pipe sleeve, heat insulating mattress, sealing ring, pressing plate, the sprue is arranged with sheath, the temperature sensor is fixedly connected pipe sleeve, the elbow is located on sheath, the copper pipe connects sprue set by sheath, and the pressing plate is fixedly connected pipe sleeve.The permanent low temperature sprue bush that the utility model is provided, is reducing the pressure loss and heat consumption simultaneously, by structure optimization, realize simplifying the processing and assembling of part, realize mechanism's densification, and traditional machining processes are used, the cooling duct to sheath optimizes, and realizes the miniaturization of mechanism；Sprue set is fixed using simple pressing plate and screw, it is easy to dismounted, changed, and how sprue is heat cured for, it is easy to clear up, smaller to injection Influence of production.

Description

A kind of permanent low temperature sprue bush

Technical field

The utility model is a kind of permanent low temperature sprue bush, belongs to thermosetting plastics processing mold technical field.

Background technology

Thermosetting plastics can soften flowing when heating for the first time, be heated to uniform temperature, produce chemical reaction one to be crosslinked React and cure hard, this change is irreversible, hereafter, when heating again, soft flow can not be again become.Exactly by This characteristic carries out processing and forming, and plasticizing when being heated using first time is flowed, and under stress full of die cavity, and then is solidified into Determine the product of shape and size.

Prior art discloses Application No.：A kind of 201220457089.0 injection mold sprue bush mechanism, bag Include bushing body（1）, bushing body（1）Inside it is provided with the sprue of penetration liner body（2）, sprue（2）Feed end（4）With bushing body （1）The semi-circular recesses that upper surface is set（3）It is connected, sprue（2）Feed end（4）Diameter to die direction gradually increases Plus, feed end（4）Diameter compare nozzle of injector（5）The big 0.5-1mm of diameter, semi-circular recesses（3）Radius ratio injector Nozzle sphere（6）The big 1-2mm of radius.Sprue bush mechanism of the present utility model, sprue is from feed end to die direction Diameter gradually increase, and the diameter of feed end is bigger than the diameter of nozzle of injector, and is provided with semi-circular recesses, plays buffering The effect of plastic liquid, improves injection quality, and accumulation condensate will not be produced in injection moulding process, facilitates product stripping, and design is simple, Cause attractive in appearance, have a good application prospect.Existing thermosetting runner mainly has two kinds of forms, one be runner as finished product The common flow passage being heating and curing in injection moulding process, two is the cold runner similar with the utility model technology.But its weak point It is common flow passage, can increases not recyclable after the loss of injection pressure and the consumption of heat, runner solidification in injection moulding process, Increased the consumption of raw material.Existing cold runner, if runner section is heat cured for, cleaning can be highly difficult, and maintenance cost is high.

Utility model content

In view of the shortcomings of the prior art, the utility model purpose is to provide a kind of permanent low temperature sprue bush, to solve Certainly existing common flow passage, can increase the loss of injection pressure in injection moulding process and the consumption of heat, runner can not after solidifying Reclaim, increased the consumption of raw material.Existing cold runner, if runner section is heat cured for, cleaning can be highly difficult, safeguards into This problem high.

To achieve these goals, the utility model is to realize by the following technical solutions：A kind of permanent low temperature main flow Road bushing, its structure includes sprue set, sheath, temperature sensor, elbow, copper pipe, pipe sleeve, heat insulating mattress, sealing ring, pressure Plate, the sprue is arranged with sheath, and the temperature sensor is fixedly connected pipe sleeve, and the elbow is located on sheath, the copper Pipe connects sprue set by sheath, and the pipe sleeve is fixedly connected sprue set, and the heat insulating mattress is located at sprue and puts, institute State sealing ring and be located at sprue and put, the pressing plate is fixedly connected pipe sleeve.

Further, the sprue is arranged with one, and the sheath is provided with two.

Further, the temperature sensor is provided with two, and the elbow is provided with one.

Further, the copper pipe is provided with two, and the pipe sleeve is provided with four.

Further, the heat insulating mattress is provided with three, and the sealing ring is provided with two, and the accessory such as described pressing plate is some.

The permanent low temperature sprue bush that the utility model is provided, is reducing the pressure loss and heat consumption simultaneously, by knot Structure optimizes, and realizes simplifying the processing and assembling of part, realizes mechanism's densification, and uses traditional machining processes, to the cold of sheath But passage is optimized, and realizes the miniaturization of mechanism；Sprue set is fixed using simple pressing plate and screw, it is easy to dismounted, more Change, how sprue is heat cured for, it is easy to clear up, it is smaller to injection Influence of production.

Brief description of the drawings

The detailed description made to non-limiting example with reference to the following drawings by reading, other spies of the present utility model Levy, objects and advantages will become more apparent upon：

Fig. 1 is a kind of overall structure diagram of permanent low temperature sprue bush of the utility model；

Fig. 2 is structural decomposition diagram of the present utility model；

Fig. 3 is inside configuration schematic diagram of the present utility model；

Fig. 4 is copper pipe enlarged diagram of the present utility model；

Fig. 5 is elbow enlarged diagram of the present utility model；

Fig. 6 is temperature sensor enlarged diagram of the present utility model；

Fig. 7 is the enlarged diagram of structure A of the present utility model；

Fig. 8 is this practical workflow schematic diagram.

In figure：Sprue set -1, sheath -2, temperature sensor -3, elbow -4, copper pipe -5, pipe sleeve -6, heat insulating mattress -7, Sealing ring -8, pressing plate -9.

Specific embodiment

For technological means, creation characteristic, reached purpose and effect for realizing the utility model are easy to understand, below With reference to specific embodiment, the utility model is expanded on further.

Fig. 1-Fig. 8 is referred to, the utility model provides a kind of technical scheme：A kind of permanent low temperature sprue bush, its structure Including sprue set 1, sheath 2, temperature sensor 3, elbow 4, copper pipe 5, pipe sleeve 6, heat insulating mattress 7, sealing ring 8, pressing plate 9, institute State sprue set 1 and be provided with sheath 2, the temperature sensor 3 is fixedly connected pipe sleeve 6, and the elbow 4 is located on sheath 2, the copper Pipe 5 connects sprue and covers 1 by sheath 2, and the pipe sleeve 6 is fixedly connected sprue set 1, and the heat insulating mattress 7 is located at sprue On set 1, the sealing ring 8 is located on sprue set 1, and the pressing plate 9 is fixedly connected pipe sleeve 6.

Further, the sprue set 1 is provided with one, and the sheath 2 is provided with two.

Further, the temperature sensor 3 is provided with two, and the elbow 4 is provided with one.

Further, the copper pipe 5 is provided with two, and the pipe sleeve 6 is provided with four.

Further, the heat insulating mattress 7 is provided with three, and the sealing ring 8 is provided with two, if the accessory such as described pressing plate It is dry.

When being used, Fig. 8 is referred to, when plastic cement injects sprue, by by copper pipe 5, elbow 4 and sheath 2 The cooling duct of composition is cooled down to it, reaches the purpose of sprue low temperature, and the temperature of cooling is realized by temperature sensor 3 Feed back to flow controller, realize the constant of main flow channel temp, it is to avoid sprue solidification, reach economize in raw materials, reduces inject work The purposes such as skill difficulty, energy-conservation.

For the heat for preventing electrical heating spare conducts the sprue temperature change for causing, this permanent low temperature sprue bush and electricity Be thermally shielded using heat insulating mattress 7 and the air gap between heated components, copper pipe 5 and temperature sensor 3 using pipe sleeve 6 carry out every Heat.

General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above, for For those skilled in the art, it is clear that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and without departing substantially from this In the case of the spirit or essential attributes of utility model, the utility model can be in other specific forms realized.Therefore, no matter From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is by institute Attached claim is limited rather than described above, it is intended that will fall in the implication and scope of the equivalency of claim All changes are included in the utility model.Any reference in claim should not be considered as the right involved by limitation It is required that.

Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined May be appreciated other embodiment.

Claims (5)

1. a kind of permanent low temperature sprue bush, it is characterised in that：Its structure includes sprue set（1）, sheath（2）, TEMP Device（3）, elbow（4）, copper pipe（5）, pipe sleeve（6）, heat insulating mattress（7）, sealing ring（8）, pressing plate（9）, the sprue set（1）If There is sheath（2）, the temperature sensor（3）It is fixedly connected pipe sleeve（6）, the elbow（4）It is located at sheath（2）On, the copper pipe （5）By sheath（2）Connection sprue set（1）, the pipe sleeve（6）It is fixedly connected sprue set（1）, the heat insulating mattress（7） It is located at sprue set（1）On, the sealing ring（8）It is located at sprue set（1）On, the pressing plate（9）It is fixedly connected pipe sleeve（6）.

2. a kind of permanent low temperature sprue bush according to claim 1, it is characterised in that：The sprue set（1）It is provided with One, the sheath（2）It is provided with two.

3. a kind of permanent low temperature sprue bush according to claim 1, it is characterised in that：The temperature sensor（3）If There are two, the elbow（4）It is provided with one.

4. a kind of permanent low temperature sprue bush according to claim 1, it is characterised in that：The copper pipe（5）Two are provided with, The pipe sleeve（6）It is provided with four.

5. a kind of permanent low temperature sprue bush according to claim 1, it is characterised in that：The heat insulating mattress（7）It is provided with Three, the sealing ring（8）Two are provided with, the accessory such as described pressing plate is some.