CN208896408U - A kind of hot runner system of adjustable discharge pressure - Google Patents
A kind of hot runner system of adjustable discharge pressure Download PDFInfo
- Publication number
- CN208896408U CN208896408U CN201821200614.4U CN201821200614U CN208896408U CN 208896408 U CN208896408 U CN 208896408U CN 201821200614 U CN201821200614 U CN 201821200614U CN 208896408 U CN208896408 U CN 208896408U
- Authority
- CN
- China
- Prior art keywords
- runner
- needle
- relief tube
- valve
- distribution plate
- 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
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of hot runner system of adjustable discharge pressure, including flow distribution plate, feed nozzle, several hot nozzles and needle-valve, flow passage structure is equipped in the flow distribution plate, wherein flow passage structure includes the introducing runner that plate body center is arranged in, the starting point for introducing runner is connected with the upper surface outer fix of plate body, the utility model makes the lumen of relief tube be connected with flow passage structure by opening the first ball valve of relief tube and the second ball valve of relief tube, partial melting sizing material will be squeezed under the effect of the pressure into the lumen of relief tube in this way, the parking space for melting sizing material at this time has obtained certain extension, therefore corresponding pressure will be effectively reduced, therefore the case where can will appear material spray suddenly during unlatching to avoid needle-valve, entirety makes material spray more smooth, and it is not necessary that sizing material is sprayed in advance, The step of reducing initial stage cleaning, make injection molding more smooth.
Description
Technical field
The utility model relates to injection molding arts, more particularly, to a kind of hot runner system of adjustable discharge pressure.
Background technique
Injection molding is a kind of method of industrial products production moulding.Product is usually using rubber injection mold and plastic injection.Injection molding
Molding die platen press and casting die can also be dispensed.
Injection (mo(u)lding) machine (abbreviation injector or injection molding machine) is that thermoplastic or thermosetting property material are utilized plastic forming dies
The main molding equipment of plastic products of various shapes is made in tool, and injection moulding is realized by injection molding machine and mold.
Injection is divided into rubber injection mold, plastic injection and injection molding, and injection molding of rubber is a kind of by the direct slave of sizing material
The production method of cylinder injection model vulcanization；Plastic injection is a kind of method of plastic products, and the plastics of melting are infused using pressure
Into in plastic product mold, cooling and shaping obtain wanting various plastic parts, there is the mechanical injection molding machine dedicated for being molded, mesh
Preceding most-often used plastics are polystyrene；The resulting shape of injection molding is often exactly end product, in installation or as most
Other processing are no longer needed before finished product use, many thin portions, such as lug boss, rib, screw thread can be in injection moldings
It forms out in single stepping.
At present since needle valve assembly is in closed state in injection molding preliminary process, and in order to guarantee the speed meeting of initial stage injection molding
Material discharge pressure in hot flow path becomes larger, and controls error due to existing, pressure release, specific pressure release are just needed when pressure is excessive
Mode is exactly to open the needle-valve of nozzle, so that material sprays, this process is easy to produce waste material, be easy to cause the waste of material.
Utility model content
The utility model is to overcome above situation insufficient, it is desirable to provide a kind of adjustable discharge pressure that can solve the above problem
Hot runner system.
Technical solution provided by the utility model is:
A kind of hot runner system of adjustable discharge pressure, including flow distribution plate, feed nozzle, several hot nozzles and needle-valve, institute
It states and is equipped with flow passage structure in flow distribution plate, wherein flow passage structure includes the introducing runner that plate body center is arranged in, and introduces runner
Starting point be connected with the upper surface outer fix of plate body, and introduce the starting point port of runner with bolt it is fixed to be connected into
Expect mouth, the inner cavity of feed nozzle is connected with runner is introduced；The flow passage structure includes a plurality of company being horizontally set on the inside of plate body
Through-flow logical, connection, which is circulated, to be connected close to the starting point at plate body center with the end for introducing runner；Flow passage structure further includes a plurality of
Extraction runner on the inside of plate body is set, draws runner and is arranged in a one-to-one correspondence with circulation be connected to, and the starting point of extraction runner and
The end of connection circulation is connected, and the end for drawing runner is connected with the lower surface outer fix of plate body, by that will melt
The fluent material for melting state, which is injected into, to be introduced in runner, and the shunting by connection circulation allows fluent material to flow out from runner is drawn；
It is fixed to being connected to hot nozzle that the end port for drawing runner is all made of bolt, the inner cavity of hot nozzle and draws the coaxial simultaneously phase of runner
It is intercommunicated；The shape form that the bottom of the hot nozzle is threadedly coupled is fixedly installed with needle-valve, and the needle of needle-valve is located at hot nozzle
Inner cavity in, the upper surface of flow distribution plate offers and draws the runner needle cavity that corresponds and be interconnected, needle cavity and extraction stream
Road coaxial arrangement；The upper end of the needle is penetrated through drawing runner activity to needle cavity；One is a pair of at the upper port of the needle cavity
It should be provided with needle-valve electric cylinder, needle-valve electric cylinder is bolted to the upper surface of flow distribution plate, and the cylinder shaft of needle-valve electric cylinder is living
It is dynamic to penetrate to needle cavity and be fixedly connected with the upper end of needle by shaft coupling, it is coaxially set between the cylinder shaft and needle of needle-valve electric cylinder
It sets, is linearly moved in needle cavity by needle-valve electric cylinder valve needle, to realize the switch of needle-valve, then realized to thermal jet
The switch control of mouth；Needle-valve electric cylinder connects servo-driver in actual use, is realized using servo-driver to needle-valve electric cylinder
Driving.
Pressure relief is equipped in the flow distribution plate, wherein pressure relief includes a plurality of pressure release runner, the starting of pressure release runner
End is connected with connection circulation, and the end port of pressure release runner is connected with the bottom surface of flow distribution plate；Two adjacent pressure release runners it
Between be connected to and connect by relief tube, relief tube is in both ends open shape structure, wherein the port of relief tube and adjacent pressure release runner
It is connected between end port, and adopts and be screwed between relief tube and flow distribution plate；Distinguish at the two ends of the relief tube
Series connection is connected to the second ball valve of the first ball valve of relief tube and relief tube, when initial material feeding, the first ball valve of relief tube and relief tube the
Two ball valves are in a closed state, while hollow form occurs in the inside of relief tube, are corresponded in initial stage injection moulding process, if in flow distribution plate
Flow passage structure internal pressure it is excessive when, by open the first ball valve of relief tube and the second ball valve of relief tube make the lumen of relief tube with
Flow passage structure is connected, and such partial melting sizing material will be squeezed under the effect of the pressure into the lumen of relief tube, at this time
The parking space of melting sizing material has obtained certain extension, therefore corresponding pressure will be effectively reduced, therefore can be to avoid
The case where needle-valve will appear material spray suddenly during unlatching, integrally makes material spray more smooth, and it is not necessary that sizing material is pre-
The step of first spraying, reducing initial stage cleaning, makes injection molding more smooth.
As a further solution of the present invention: between the connection circulation in same level.
As a further solution of the present invention: the relief tube is made of stainless steel material, the port of relief tube
Sealing ring is equipped between the lower surface contact position of flow distribution plate.
As a further solution of the present invention: the lower surface of the needle-valve electric cylinder is contacted with the upper surface of flow distribution plate
Sealing ring is equipped between position.
As a further solution of the present invention: the structure phase of first ball valve of relief tube and the second ball valve of relief tube
Together.
The utility model has the beneficial effects that the utility model is by opening the first ball valve of relief tube and the second ball valve of relief tube
So that the lumen of relief tube is connected with flow passage structure, such partial melting sizing material will be squeezed under the effect of the pressure to letting out
In the lumen of pressure pipe, the parking space for melting sizing material at this time has obtained certain extension, therefore corresponding pressure will be effective
The case where reducing, therefore material spray suddenly being will appear during unlatching to avoid needle-valve, integrally make material spray more smooth,
And the step of without being sprayed sizing material in advance, reducing initial stage cleaning, make injection molding more smooth.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the partial structural diagram of the utility model.
In figure: 1- flow distribution plate, 2- introduce runner, 3- connection circulation, 4- draw runner, 5- electrothermal tube slot, 6- feed nozzle,
7- needle-valve electric cylinder, 8- hot nozzle, 9- needle cavity, 10- relief tube, 11- pressure release runner, the first ball valve of 12- relief tube, 13- pressure release
The second ball valve of pipe.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~2, in the utility model embodiment, a kind of hot runner system of adjustable discharge pressure comprising point
Flowing plate 1, feed nozzle 2, several hot nozzles 8 and needle-valve, the flow distribution plate 1 is interior to be equipped with flow passage structure, and wherein flow passage structure includes
The introducing runner 2 of 1 center of plate body is set, and the starting point for introducing runner 2 is connected with the upper surface outer fix of plate body 1
It is logical, and it is fixed to being connected to feed nozzle 6, inner cavity and introducing 2 phase of runner of feed nozzle 6 with bolt to introduce the starting point port of runner 2
Connection；The flow passage structure includes a plurality of connection circulation 3 for being horizontally set on 1 inside of plate body, and connection circulation 3 is in plate body 1
The starting point of the heart is connected with the end for introducing runner 2；Flow passage structure further includes a plurality of extraction runner that 1 inside of plate body is arranged in
4, it draws runner 4 and is arranged in a one-to-one correspondence with circulation 3 is connected to, and the starting point for drawing runner 4 is connected with the end of connection circulation 3
Logical, the end for drawing runner 4 is connected with the lower surface outer fix of plate body 1, by by the fluent material of molten condition
It is injected into and introduces in runner 2, the shunting by connection circulation 3 allows fluent material to flow out from runner 4 is drawn；The extraction runner 4
End port be all made of that bolt is fixed to hot nozzle 8 is connected to, and the inner cavity of hot nozzle 8 is coaxial with extraction runner 4 and is interconnected；Institute
It states the shape form that the bottom of hot nozzle 8 is threadedly coupled and is fixedly installed with needle-valve, the needle of needle-valve is located at the inner cavity of hot nozzle 8
In, the upper surface of flow distribution plate 1 offers and draws the needle cavity 9 that runner 4 is corresponded and is interconnected, needle cavity 9 and extraction runner 4
Coaxial arrangement；The upper end of the needle is penetrated through drawing 4 activity of runner to needle cavity 9；One is a pair of at the upper port of the needle cavity 9
It should be provided with needle-valve electric cylinder 7, needle-valve electric cylinder 7 is bolted to the upper surface of flow distribution plate 1, the cylinder of needle-valve electric cylinder 7
Axis activity is penetrated to needle cavity 9 and is fixedly connected with the upper end of needle by shaft coupling, between the cylinder shaft and needle of needle-valve electric cylinder 7
Coaxial arrangement, is linearly moved in needle cavity 9 by 7 valve needle of needle-valve electric cylinder, to realize the switch of needle-valve, is then realized
To the switch control of hot nozzle 8；Needle-valve electric cylinder 7 connects servo-driver in actual use, utilizes servo-driver realization pair
The driving of needle-valve electric cylinder 7.
It is equipped with pressure relief in the flow distribution plate 1, wherein pressure relief includes a plurality of pressure release runner 11, pressure release runner 11
Starting point is connected with connection circulation 3, and the end port of pressure release runner 11 is connected with the bottom surface of flow distribution plate 1；It is two adjacent to let out
It presses by the connection connection of relief tube 10 between runner 11, relief tube 10 is in both ends open shape structure, wherein the port of relief tube 10
It is connected between the end port of adjacent pressure release runner 11, and adopts and be screwed between relief tube 10 and flow distribution plate 1；It is described
Series connection is connected to the first ball valve of relief tube 12 and the second ball valve of relief tube 13 respectively at the two ends of relief tube 10, when initial material feeding
When, the first ball valve of relief tube 12 and the second ball valve of relief tube 13 are in a closed state, while in the inside appearance of relief tube 10
Empty shape corresponds in initial stage injection moulding process, if the flow passage structure internal pressure in flow distribution plate 1 is excessive, passes through and opens the first ball of relief tube
Valve 12 and the second ball valve of relief tube 13 make the lumen of relief tube 10 be connected with flow passage structure, and such partial melting sizing material will
It being squeezed under the effect of the pressure into the lumen of relief tube 10, the parking space for melting sizing material at this time has obtained certain extension,
Therefore corresponding pressure will be effectively reduced, therefore can will appear material spray suddenly during unlatching to avoid needle-valve
The step of situation integrally makes material spray more smooth, and without spraying sizing material in advance, reduces initial stage cleaning, allow injection molding
It is more smooth.
Between the connection circulation 3 in same level.
The relief tube 10 is made of stainless steel material, the port of relief tube 10 and the following table face contact position of flow distribution plate 1
Sealing ring is equipped between setting.
Sealing ring is equipped between the lower surface of the needle-valve electric cylinder 7 and the upper surface contact position of flow distribution plate 1.
First ball valve of relief tube 12 is identical as the structure of the second ball valve of relief tube 13.
The working principle of the utility model is: when initial material feeding, the second ball valve of the first ball valve of relief tube 12 and relief tube
13 are in a closed state, while hollow form occurs in the inside of relief tube 10, correspond in initial stage injection moulding process, if in flow distribution plate 1
Flow passage structure internal pressure it is excessive when, make relief tube 10 by opening the first ball valve of relief tube 12 and the second ball valve of relief tube 13
Lumen is connected with flow passage structure, and such partial melting sizing material will be squeezed under the effect of the pressure to the lumen of relief tube 10
In, the parking space for melting sizing material at this time has obtained certain extension, therefore corresponding pressure will be effectively reduced, therefore can
The case where will appear material spray suddenly during unlatching to avoid needle-valve, integrally makes material spray more smooth, and being not necessarily to will
The step of sizing material sprays in advance, reduces initial stage cleaning, makes injection molding more smooth.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (5)
1. a kind of hot runner system of adjustable discharge pressure, which is characterized in that it includes flow distribution plate, feed nozzle, several hot nozzles
And needle-valve, the flow distribution plate is interior to be equipped with flow passage structure, and wherein flow passage structure includes the introducing stream that plate body center is arranged in
Road, the starting point for introducing runner are connected with the upper surface outer fix of plate body, and introduce the starting point port of runner with bolt
It fixes to feed nozzle is connected to, the inner cavity of feed nozzle is connected with runner is introduced；The flow passage structure includes a plurality of is horizontally set on
Connection circulation on the inside of plate body, connection, which is circulated, to be connected close to the starting point at plate body center with the end for introducing runner；Runner knot
Structure further includes a plurality of extraction runner being arranged on the inside of plate body, draws runner and is arranged in a one-to-one correspondence with circulation is connected to, and draws stream
The starting point in road is connected with the end of connection circulation, and the end for drawing runner is connected with the lower surface outer fix of plate body
Logical, the end port for drawing runner is all made of bolt and fixes to hot nozzle is connected to, and the inner cavity of hot nozzle and extraction runner are coaxial
And it is interconnected；The shape form that the bottom of the hot nozzle is threadedly coupled is fixedly installed with needle-valve, and the needle of needle-valve is located at heat
In the inner cavity of nozzle, the upper surface of flow distribution plate offers and draws the runner needle cavity that corresponds and be interconnected, needle cavity with draw
Runner is coaxially disposed out；The upper end of the needle is penetrated through drawing runner activity to needle cavity；One at the upper port of the needle cavity
One is correspondingly arranged on needle-valve electric cylinder, and needle-valve electric cylinder is bolted to the upper surface of flow distribution plate, the cylinder of needle-valve electric cylinder
Axis activity is penetrated to needle cavity and is fixedly connected with the upper end of needle by shaft coupling, same between the cylinder shaft and needle of needle-valve electric cylinder
Axis setting；Pressure relief is equipped in the flow distribution plate, wherein pressure relief includes a plurality of pressure release runner, the starting point of pressure release runner
It is connected with connection circulation, the end port of pressure release runner is connected with the bottom surface of flow distribution plate；Between two adjacent pressure release runners
It is connected to and is connected by relief tube, relief tube is in both ends open shape structure, wherein the end of the port of relief tube and adjacent pressure release runner
It is connected between port, and adopts and be screwed between relief tube and flow distribution plate；It is gone here and there respectively at the two ends of the relief tube
Connection has the second ball valve of the first ball valve of relief tube and relief tube.
2. the hot runner system of adjustable discharge pressure according to claim 1, which is characterized in that between the connection circulation
In same level.
3. the hot runner system of adjustable discharge pressure according to claim 1, which is characterized in that the relief tube is not using
Rust steel material is made, and sealing ring is equipped between the port of relief tube and the lower surface contact position of flow distribution plate.
4. the hot runner system of adjustable discharge pressure according to claim 1, which is characterized in that the needle-valve electric cylinder
Sealing ring is equipped between lower surface and the upper surface contact position of flow distribution plate.
5. the hot runner system of adjustable discharge pressure according to claim 1, which is characterized in that first ball of relief tube
Valve is identical as the structure of the second ball valve of relief tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821200614.4U CN208896408U (en) | 2018-07-27 | 2018-07-27 | A kind of hot runner system of adjustable discharge pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821200614.4U CN208896408U (en) | 2018-07-27 | 2018-07-27 | A kind of hot runner system of adjustable discharge pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208896408U true CN208896408U (en) | 2019-05-24 |
Family
ID=66568277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821200614.4U Expired - Fee Related CN208896408U (en) | 2018-07-27 | 2018-07-27 | A kind of hot runner system of adjustable discharge pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208896408U (en) |
-
2018
- 2018-07-27 CN CN201821200614.4U patent/CN208896408U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208896408U (en) | A kind of hot runner system of adjustable discharge pressure | |
| CN203792642U (en) | Injection mold flowing channel structure | |
| CN109093948A (en) | LED panel injection forming mold and the Shooting Technique for manufacturing LED panel | |
| CN205167480U (en) | Controllable injection mold of pressure | |
| CN208896407U (en) | A kind of hot runner structure of automatically lock | |
| CN205238455U (en) | Injection mold | |
| CN209426052U (en) | The exempting from of a kind of weldless line sprays product injection mould | |
| CN208277338U (en) | Injection molding machine injection mold | |
| CN207724778U (en) | A kind of injection molding machine colloidal sol cartridge module | |
| CN215095215U (en) | Be applied to injection mold's nozzle structure | |
| CN109514807A (en) | The exempting from of a kind of weldless line sprays product injection mould and processing method | |
| CN201309233Y (en) | Runner nozzle improved structure of injection molding machines | |
| CN205255418U (en) | Novel injection mold | |
| CN205326131U (en) | No flow distribution plate hot runner structure | |
| CN208558122U (en) | A kind of shell material injection molding machine feed preparation unit | |
| CN110053219A (en) | A kind of injection mold | |
| CN105437486A (en) | Injection mold with controllable pressure | |
| CN112519160A (en) | Forming die for automobile interior covering part and using method thereof | |
| CN208410609U (en) | A kind of needle valve type hot runner cast gate injection molding apparatus | |
| CN208232271U (en) | A kind of plastic processing Coinjection molding apparatus | |
| CN221187391U (en) | Valve needle sleeve with good heat preservation effect | |
| CN205167433U (en) | Changeable injection mold in main flow channel hole footpath | |
| CN2495448Y (en) | Injection device of two color plastic injection machine | |
| CN201808182U (en) | Shunting type two-step injection passage device of injection molding machine | |
| CN213675245U (en) | Quincunx wire drawing prevention sprue bush |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190524 |