CN209158804U - A kind of thermosetting plastics runnerless mould tool and its running gate system - Google Patents
A kind of thermosetting plastics runnerless mould tool and its running gate system Download PDFInfo
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- CN209158804U CN209158804U CN201821626329.9U CN201821626329U CN209158804U CN 209158804 U CN209158804 U CN 209158804U CN 201821626329 U CN201821626329 U CN 201821626329U CN 209158804 U CN209158804 U CN 209158804U
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- thermosetting plastics
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Abstract
The utility model discloses a kind of thermosetting plastics runnerless mould tool and its running gate systems, including hot nozzle, the adapter being connected to the powder runner in hot nozzle, adapter is connect with hot nozzle removable seal, the flowing heating zone for making powder runner temperature be maintained at 80 DEG C~90 DEG C is equipped in hot nozzle, hot nozzle is equipped with the orifices for injecting hot-fluid matter and the outflow port of heat supply liquid outflow, and orifices and outflow port are connected to flowing heating zone.It the advantage is that, utilize hot nozzle and adapter, thermosetting plastics powder is guided from powder runner into adapter, then it is molded, because being provided with flowing heating zone in hot nozzle, so that thermosetting plastics powder is prevented material solidification when forming without the part of enough heating in barrel, further heated using the heat of flowing heating zone, and then shorten material head, save material.
Description
Technical field
The utility model relates to technical field of material formation more particularly to a kind of thermosetting plastics runnerless mould tool and its pour
Injection system.
Background technique
It is well known that the generation and recycling of a large amount of running gate system feed backs are a sternnesses when being produced with common die
Problem.After common die injection moulding, it is also necessary to trim cast gate, excision material handle.And feed back needs by hand picking, crushes dye
The processes such as color, plasticizing granulation, this needs to spend a large amount of manpower and material resources.When producing miniature precision product, feed back volume often compares product
Volume is also big, and recovery operation amount is especially big, and the quality of feed back is always more of poor quality than virgin material, and can only degrade use.For flowing
Property the difference and good plastics of toughness, relatively difficult is for thermosetting plastics for recovery operation, and just needless to say, and feed back is only
It can make waste disposal.
Thermosetting plastics running gate system usually by mold, the sprue bush being fixed on the mold, be connected to the sprue bush
Nozzle is constituted, and the mold is equipped with the cover half profiled sheeting of type chamber and runner by cover half fixed plate, bottom, top is equipped with cold slug well
Dynamic model profiled sheeting constitute.Since nozzle must be moulded the thermosetting property of fusing in horn-like sprue by being located in sprue bush
In the type chamber of material injection mold, therefore waste material can be formed in sprue, runner and cold slug well etc. after formed product demoulding
And cause to waste, cause product cost to rise.
Existing injection mold is very mature without runner and Hot runner Technology, but thermosetting plastics is also rarely found without runner.
Because of regrinding-material remaining after thermosetting property (phenolic moulding powder) material injection, it cannot substantially recycle, be easy to cause waste of material, produce
Product cost increase.
Utility model content
For overcome the deficiencies in the prior art, one of the utility model is designed to provide a kind of thermosetting plastics without stream
Road mold and its running gate system reduce waste of material for shortening material head.
To achieve the goals above, the utility model adopts the following technical solution realizes:
A kind of thermosetting plastics runnerless mould tool, including hot nozzle, the adapter being connected to the powder runner in the hot nozzle,
The adapter is connect with the hot nozzle removable seal, and being equipped in the hot nozzle makes powder runner temperature be maintained at 80 DEG C~90
DEG C flowing heating zone, the hot nozzle be equipped with for inject hot-fluid matter orifices and for the hot-fluid mass flow go out go out flow
Mouthful, the orifices and the outflow port are connected to the flowing heating zone.
Further, the hot nozzle includes nozzle body and the nozzle set that is set on the nozzle body, the orifices and it is described go out
Head piece is arranged on the nozzle body, and the flowing heating zone setting is between the nozzle body and nozzle set.
Further, the flowing heating zone includes the groove being arranged on the nozzle body, the orifices and it is described go out
Head piece is arranged on the big end of the nozzle body, and is connected to respectively with the groove.
Further, the partition being provided symmetrically in the groove, the inner wall that the partition is covered with the nozzle closely paste
It closes, the bottom of one of partition is equipped with the notch of heat supply liquid circulation, and the orifices and the outflow port are located at institute
State the two sides of partition.
Further, it is connected with beam interface tube in the orifices, outflow tube interface is connected in the outflow port.
Further, the nozzle body is made of 8407 mould steel.
Further, the nozzle body and nozzle set are tightly connected, the top and bottom of nozzle set and the nozzle body it
Between be respectively provided with a high-temperature resistant seal ring.
Further, the adapter is threadedly coupled with the nozzle body, the intracorporal feed powder channel of nozzle and the switching
Discharge port on head is aligned connection.
To achieve the goals above, the utility model provides another technical solution: a kind of thermosetting plastics is poured without runner
Injection system has including above-mentioned thermosetting plastics runnerless mould, and the code for fixing the thermosetting plastics runnerless mould tool
Moulded board, the code moulded board are equipped with the holding tank for placing liquid inlet pipe and liquid outlet pipe, the liquid inlet pipe and the note
Head piece connection, the liquid outlet pipe are connected to the outflow port.
Further, the holding tank is equipped with the pressing piece for pinning the liquid inlet pipe and the liquid outlet pipe.
Compared with prior art, the utility model has the beneficial effects that:
The mold of the utility model utilizes hot nozzle and adapter, and thermosetting plastics powder is guided from powder runner to switching
It in head, is then molded, because being provided with flowing heating zone in hot nozzle, thermosetting plastics powder is made to prevent material when forming
Material solidifies without the part of enough heating in barrel, is further heated using the heat of flowing heating zone, and then shortening strip
Head saves material.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the runnerless mould of the utility model embodiment has；
Fig. 2 is the internal structure perspective diagram that the runnerless mould of the utility model embodiment has；
Fig. 3 is the schematic diagram of the section structure that the runnerless mould of the utility model embodiment has；
Fig. 4 is the schematic diagram of the section structure for another angle that the runnerless mould of the utility model embodiment has；
Fig. 5 is the schematic diagram of the section structure of orifices and outflow port that the runnerless mould of the utility model embodiment has；
Fig. 6 is the structural schematic diagram of the running gate system of the utility model embodiment；
Fig. 7 is the product effect figure using existing pouring type；
Fig. 8 is the product effect figure using the running gate system of the utility model embodiment；
In figure:
10, runnerless mould has；
20, Re Zui；21, powder runner；22, heating zone is flowed；23, orifices；231, beam interface tube；24, outflow port；
241, outflow tube interface；25, nozzle body；251, groove；252, partition；253, notch；254, big end；26, nozzle set；27, high temperature
Sealing ring；28, screw；
30, adapter；31, discharge port；
40, code moulded board；41, holding tank；42, pressing piece.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
In the description of the present invention, it should be noted that for the noun of locality, if any term " center ", " transverse direction ",
" longitudinal direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top",
The indicating positions such as "bottom", "inner", "outside", " clockwise ", " counterclockwise " and positional relationship are orientation based on the figure or position
Relationship is set, narration the utility model is merely for convenience of and simplifies description, rather than the device or element of indication or suggestion meaning
It must have a particular orientation, constructed and operated with particular orientation, should not be understood as the specific protection model for limiting the utility model
It encloses.
In addition, being used for description purposes only if any term " first ", " second ", it is not understood to indicate or imply relatively heavy
The property wanted or the quantity for implicitly indicating technical characteristic." first " is defined as a result, " second " feature can be expressed or implicit include
One or more this feature, in the utility model description, " several " are meant that two or more, unless otherwise bright
It is really specific to limit.
In the present invention, except as otherwise clear stipulaties and restriction, if any term " assembling ", " connected ", " connection " term
It should go to understand as broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It is also possible to machine
Tool connection；It can be directly connected, be also possible to be connected by intermediary, can be and be connected inside two elements.For
For those of ordinary skill in the art, can understand as the case may be above-mentioned term in the present invention specifically contain
Justice.
Referring to Fig. 1 to Fig. 6, Fig. 8 of attached drawing, the thermosetting plastics runnerless mould tool of embodiment according to the present utility model and
Its running gate system will be elucidated in following description, wherein runnerless mould tool solve existing casting mold material head it is too long
The problem of, material head length is shortened, material and cost are saved.
No runner molding die refers to the method for taking insulation or heating in a mold, makes from nozzle of injector to type chamber people
Plastics in mouthful this section of runner are always maintained at molten condition, and when die sinking need to only take out plastic, it is not necessary to clear up the dress of condensed material in runner
It sets.Runnerless mould tool is not necessarily referring in mold without runner, and refers to the mold that will not generate runner condensate when moulded products simultaneously.It is suitable
Being suitable for runnerless mould to have molding thermoplastic has PE, PP, PS etc..Runnerless mould tool is different in the way of keeping runner temperature
Heat-insulating hot channel mold and hot runner mould two major classes can be divided into.The characteristics of heat-insulating hot channel mold is that runner is very coarse.It is infusing
During penetrating, close to the plastics cooled and solidified of flow path wall, cured layer is formed, is played a role in insulation to the plastics in runner centre,
To make it remain molten condition, under injection pressure effect, melting charge, successfully into human-like chamber, is met and is connected by runner
The requirement of continuous injection.And hot runner mould is then that heat is provided by outside, so that plastics remain molten condition in runner.
As shown in attached drawing 1 to attached drawing 6, the thermosetting plastics runnerless mould of the present embodiment tool 10, including hot nozzle 20, with it is described
The adapter 30 that powder runner 21 in hot nozzle 20 is connected to, the adapter 30 are connect with hot 20 removable seal of nozzle, institute
It states and is equipped with flowing heating zone 22 in hot nozzle 20, the hot nozzle 20 is equipped with the orifices 23 for injecting hot-fluid matter and supplies the heat
The outflow port 24 of liquid outflow, the orifices 23 and the outflow port are connected to the flowing heating zone 22.
The present embodiment is using mold close to hot runner mould, and setting flowing heating zone 22, utilizes flowing on hot nozzle 20
The heat of heating zone 22 is that the plastics in runner remain molten condition, shortens material head even without material head, flowing to realize
The temperature of heating zone 22 avoids the temperature in powder runner 21 relatively low in 80 DEG C~90 DEG C, and melting charge viscosity is high, and mobility becomes
Difference, flow resistance increase accordingly, and melting charge not easily passs through runner and flow in conversion head；Also the temperature mistake in powder runner 21 is avoided
Height causes the melting charge in runner to solidify, runner is caused to block.Preferably, the liquid in the flowing heating zone 22 of the present embodiment
It for oil or is water.By orifices 23 by hot water or hot oil injection flowing heating zone 22, runner temperature is made to be maintained at 80 DEG C extremely
Between 90 DEG C, then hot water or hot oil are discharged from outflow port 24, reheat, and form circulation loop.Due to nozzle on the present embodiment
The heating of body 25 makes to realize by flowing heating zone 22, therefore temperature is easier to control, it is not easy to the case where temperature jump occurs.
As shown in attached drawing 2 to attached drawing 4, the hot nozzle 20 includes that nozzle body 25 and the nozzle being set on the nozzle body 25 cover 26,
The orifices 23 and the outflow port 24 are arranged on the nozzle body 25, and the flowing heating zone 22 is arranged in the nozzle body 25
Between the nozzle set 26.Nozzle body 25 and nozzle are covered into 26 split settings, processed convenient for hot nozzle 20, then in nozzle body 25 and nozzle set 26
Between sealing structure is set, prevent flowing heating zone 22 hot water or hot oil leak out.More specifically, nozzle set 26 and described
A high-temperature resistant seal ring 27 is respectively provided between the top and bottom of nozzle body 25.Nozzle set 26 is set in outside nozzle body 25, and passes through screw
28 are fixedly connected with nozzle body 25, and more specifically, nozzle set 26 is equipped with annular convex platform, pass through with the big end 254 of nozzle body 25 more
A screw 28 is fixed.
The setting of powder runner 21 is flowed heating zone 22 and is arranged around nozzle body 25 at 25 center of nozzle body.And flow heating zone 22
Shape there are many, such as setting spiral groove on the external wall of nozzle or nozzle set inner wall, one end is connected to orifices, the other end
It is connected to outflow port, forms circulation loop；It is also possible to the groove being arranged on the nozzle body 25 as shown in attached drawing 2 to attached drawing 4
251, the orifices 23 and the outflow port 24 are arranged on the big end 254 of the nozzle body 25, and respectively with the groove
251 connections；The orifices 23 and the outflow port 24 are arranged on the big end 254 of the nozzle body 25, and respectively with it is described
Groove 251 is connected to.
More specifically, the partition 252 being provided symmetrically in the groove 251, the partition 252 and nozzle set 26
Inner wall fit closely, the bottom of one of partition 252 is equipped with the notch 253 of heat supply liquid circulation, 23 He of orifices
The outflow port 24 is located at the two sides of the partition 252.In order to realize that orifices 23 arrive outflow port to flowing heating zone 22
24 circuit, the annular groove 251 of the present embodiment is interior to be equipped with partition 252, and nozzle body 25 and nozzle are covered the flowing between 26 by partition 252
Heating zone 22 is divided for two parts, and a part is connected to orifices 23, and another part is connected to outflow port 24, meanwhile, wherein one
Notch 253 is arranged in the bottom of block partition 252, to be connected to two parts.The present embodiment using the groove 251 that is arranged on nozzle body 25 with
Flowing heating zone 22 is formed between nozzle set 26,251 structure of groove is simple, and easy to process and maintenance uses.
Meanwhile in order to facilitate hot water or hot oil injection or flowing out, it is connected with beam interface tube 231 in the orifices 23,
Outflow tube interface 241 is connected in the outflow port 24.
The embodiment of the present invention nozzle body 25 is made of 8407 mould steel, and 8407 mould steel are using special steel-smelting technology and sternly
Purity is high that compact substance amount controls and the fine steel of tissue, 8407 mould steel etc. tropisms (isotropism) than generally passing
Refining degree H13 unite more preferably.This is more worth the resistance to mechanical fatigue and thermal stress fatigue performance of mold, such as die casting, forging
Modeling tool and extrusion die tool etc..Therefore it is tough without sacrificing 1-2HRC to be provided than common H13 using 8407 die hardness
Property.Hardness height can slow down the generation of heat cracks, improve die life.
Connection sealing between hot nozzle 20 and adapter 30 is also most important, the adapter 30 and 25 spiral shell of nozzle body
Line connects, and the feed powder channel in the nozzle body 25 is aligned with the discharge port 31 on the adapter 30 to be connected to, and infuses convenient for melting charge
Enter.Because melting charge has the tendency that heating, nozzle body 25 is equipped with flowing heating zone 22, therefore does not have to concern runner because of specific surface area
It is excessive and the problem of radiate, as shown in attached drawing 3 to attached drawing 4, powder runner 21 is tapered structure, convenient for melting charge injection connection,
It can also be using lesser round or semi-circular cross-section the flow passage structure of specific surface area.Meanwhile the runner in conversion head also uses
Tapered structure is easy to implement mold separation.Preferably, the discharge port 31 of conversion head is equipped with the rounded corner to smoothly transit.
To achieve the goals above, the utility model provides another technical solution: a kind of thermosetting plastics is poured without runner
Injection system, including above-mentioned thermosetting plastics runnerless mould tool 10, and for fixing the thermosetting plastics runnerless mould tool 10
Code moulded board 40, the code moulded board 40 be equipped with place liquid inlet pipe and liquid outlet pipe holding tank 41, the liquid into
Pipe is connected to the orifices 23, and the liquid outlet pipe is connected to the outflow port 24.
Preferably, the holding tank 41 is equipped with the pressing piece for pinning the liquid inlet pipe and the liquid outlet pipe
42, prevent liquid inlet pipe and liquid outlet pipe mobile.
Above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model
Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacement belong to
In the utility model range claimed.
Claims (10)
1. a kind of thermosetting plastics runnerless mould tool, which is characterized in that be connected to including hot nozzle, with the powder runner in the hot nozzle
Adapter, the adapter connect with the hot nozzle removable seal, and being equipped in the hot nozzle keeps powder runner temperature
80 DEG C~90 DEG C of flowing heating zone, the hot nozzle is equipped with the orifices for injecting hot-fluid matter and supplies the hot-fluid mass flow
Outflow port out, the orifices and the outflow port are connected to the flowing heating zone.
2. thermosetting plastics runnerless mould tool as described in claim 1, which is characterized in that the hot nozzle includes nozzle body and is arranged
Nozzle set on the nozzle body, the orifices and the outflow port are arranged on the nozzle body, the flowing heating zone setting
Between the nozzle body and nozzle set.
3. thermosetting plastics runnerless mould tool as claimed in claim 2, which is characterized in that the flowing heating zone includes setting
Groove on the nozzle body, the orifices and the outflow port are arranged on the big end of the nozzle body, and respectively with institute
State groove connection.
4. thermosetting plastics runnerless mould tool as claimed in claim 3, which is characterized in that be provided symmetrically in the groove
Partition, the inner wall that the partition is covered with the nozzle fits closely, and the bottom of one of partition is equipped with the circulation of heat supply liquid
Notch, the orifices and the outflow port are located at the two sides of the partition.
5. thermosetting plastics runnerless mould tool as claimed in claim 2 or 3 or 4, which is characterized in that connected in the orifices
There is beam interface tube, outflow tube interface is connected in the outflow port.
6. thermosetting plastics runnerless mould tool as claimed in claim 2 or 3 or 4, which is characterized in that the nozzle body uses 8407
Mould steel is made.
7. thermosetting plastics runnerless mould tool as claimed in claim 2 or 3 or 4, which is characterized in that the nozzle body and the nozzle
Set is tightly connected, and is respectively provided with a high-temperature resistant seal ring between the nozzle set and the top and bottom of the nozzle body.
8. thermosetting plastics runnerless mould as claimed in claim 2 or 3 or 4 tool, which is characterized in that the adapter with it is described
Nozzle body is threadedly coupled, and the intracorporal feed powder channel of nozzle is aligned with the discharge port on the adapter to be connected to.
9. a kind of thermosetting plastics is without runner running gate system, which is characterized in that including heat as described in any of the claims 1 to 8
Solidity plastics runnerless mould tool, and the code moulded board for fixing the thermosetting plastics runnerless mould tool, the code moulded board
It is equipped with the holding tank for placing liquid inlet pipe and liquid outlet pipe, the liquid inlet pipe is connected to the orifices, and the liquid goes out
Pipe is connected to the outflow port.
10. thermosetting plastics as claimed in claim 9 is without runner running gate system, which is characterized in that the holding tank is equipped with
For pinning the pressing piece of the liquid inlet pipe and the liquid outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821626329.9U CN209158804U (en) | 2018-10-08 | 2018-10-08 | A kind of thermosetting plastics runnerless mould tool and its running gate system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821626329.9U CN209158804U (en) | 2018-10-08 | 2018-10-08 | A kind of thermosetting plastics runnerless mould tool and its running gate system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209158804U true CN209158804U (en) | 2019-07-26 |
Family
ID=67333016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821626329.9U Active CN209158804U (en) | 2018-10-08 | 2018-10-08 | A kind of thermosetting plastics runnerless mould tool and its running gate system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209158804U (en) |
-
2018
- 2018-10-08 CN CN201821626329.9U patent/CN209158804U/en active Active
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