CN208133480U - A kind of connected structure of injection molding machine nozzle and die bushing - Google Patents
A kind of connected structure of injection molding machine nozzle and die bushing Download PDFInfo
- Publication number
- CN208133480U CN208133480U CN201820207906.4U CN201820207906U CN208133480U CN 208133480 U CN208133480 U CN 208133480U CN 201820207906 U CN201820207906 U CN 201820207906U CN 208133480 U CN208133480 U CN 208133480U
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- Prior art keywords
- molding machine
- injection molding
- bushing
- machine nozzle
- injection
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- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to the connected structures of a kind of injection molding machine nozzle and die bushing.Including injection molding machine nozzle and injection mold bushing, injection molding machine nozzle is mounted on injection molding machine, injection mold bushing is mounted on injection mold, the outside of injection mold bushing is equipped with an outwardly projecting long mouth of tubulose, and the bore passages of the long mouth of tubulose lead to the inner mold chamber of injection mold through injection mold bushing；A corral is provided on injection mold bushing around the seal groove of the root tubulose Chang Kou, the bottom surface of seal groove is the arcwall face of indent；The end of injection molding machine nozzle is provided with wide opening channel, and wide opening channel leads to injection molding machine inner molten chamber；The wide opening channel outer rim end face of injection molding machine nozzle is the curved end of protrusion；The long mouth of tubulose is inserted in wide opening channel, and the curved end of wide opening channel outer rim is withstood in the lower arcuate surface of seal groove.Docking operation is simple in use for the utility model, and does not need replacement injection molding machine nozzle, saves the operating time, improves the working efficiency of machine.
Description
Technical field
The utility model relates to a kind of auxiliary tools of Injection Industry, and in particular to a kind of injection molding machine nozzle and mold serve as a contrast
The connected structure of set.
Background technique
Injection molding machine also known as injection (mo(u)lding) machine or injector.It is that thermoplastic or thermosetting plastics are utilized plastic shaping
The main molding equipment of plastic products of various shapes is made in mold.It is divided into vertical, horizontal, all electric.It is molded function heating modeling
Material applies high pressure to molten plastic, it is made to project and be full of mold cavity.
The working principle of injection molding machine is similar to the syringe having an injection, it is by screw rod（Or plunger）Thrust, will
The molten condition being plasticized（That is viscous state）Plastic injection enter in the die cavity being closed, after cured sizing obtain product work
Skill process.
Injection moulding is the process of a circulation, and each period mainly includes：Quantifying feed-fusion plastification-pressure note
Penetrate-mold filling cool down-opens mould pickup.Die closing again again is taken out after plastic, next circulation is carried out.
Injection pressure is provided by adapted to injection system.Pressure is transmitted on plastic melt by screw in injection molding machine, and plastics are molten
For body under the promotion of pressure, the runner that the nozzle through injection molding machine enters mold enters mold cavity, this process is to be molded
Journey, or referred to as filling process.The presence of pressure is in order to overcome the resistance during melt flows, or conversely speaking,
Resistance present in flow process needs the pressure of injection molding machine to offset, to guarantee that filling process is gone on smoothly.
In injection moulding process, pressure highest at injection molding machine nozzle, to overcome the flow resistance in melt whole process.Thereafter,
Pressure is along length of flow toward gradually reducing at the wavefront of melt front end, if mold cavity exhaust is good, melt front end is most
Pressure afterwards is exactly atmospheric pressure.
Referring to attached drawing 1（a）With attached drawing 1（b）, in the prior art, the nozzle 2 of injection molding machine generally relies on external force and withstands on mold
On the spherical groove 12 of 1 outer end of bushing, the bottom of spherical groove 12 is provided with the sprue 11 towards mold cavity.Die bushing 1
It is usually fixed to withstand on nozzle 2.
Injection molding machine should be noted that claimed below in the structure design for carrying out nozzle 2
（1）Melt mouth when the die bushing 1 on nozzle 2 and mold fits closely, on two parts（Sprue 11 and spray
Mouthpiece 21）Center line should on the same axis, to guarantee the unimpeded of melt dividing, not only without melt stagnant area, but also be not in dead
Angle, melt mouth are two-part.When docking operation, it is ensured that the center line of two-part melt mouth is more troublesome on the same axis,
Docking operation is time-consuming and process is cumbersome.
（2）The diameter outline of the jet hole 21 of nozzle 2 is less than the diameter of sprue 11 in die bushing 1, after the completion of injection molding,
During molding plastic part is taken out out of mold, melt mouth（Sprue 11 and jet hole 21）It is formed after interior plastics solidification
Stock column, stock column can with plastic part take out process be extracted.Referring to attached drawing 1（d）, when the diameter of the jet hole 21 of nozzle 2
Greater than in die bushing 1 when the diameter of sprue 11, melt mouth（Sprue 11 and jet hole 21）The stock column formed after interior solidification
It will be unable to extract out, cause mold that cannot continue next injection cycle.
（3）When the melt mouth on two parts（Sprue 11 and jet hole 21）When center line should not be on the same axis, melt
The stock column formed after solidifying in material mouth will be unable to extract out, cause mold that cannot continue next injection cycle.
（4）The head 22 of nozzle 2 should be it is arc-shaped, arc radius should be equal to or slightly less than die bushing 1 outer end
The arc radius of spherical groove 12.It can avoid having the gap generation when two parts are in close contact in this way and occur having when melt injection outer
Excessive phenomenon.Referring to attached drawing 1（c）, when two cambered surfaces mismatch, melt external coordination can be generated, while being formed after solidification in melt mouth
Stock column will be unable to extract out.Cause mold that cannot continue next injection cycle.
During injection molding, injection molding machine can be molded various molds, so mold is often replaced, die bushing 1
It is also required to often mold be followed to replace together.Due to requiring the diameter of the jet hole 21 of nozzle 2 to be less than sprue in die bushing 1
11 diameter, and 11 diameter of sprue that different molds requires also is not quite similar.Therefore nozzle 2 is needed to be replaced frequently, with suitable
Answer the replacement of mold.
Utility model content
The purpose of this utility model is to provide a kind of plastic plate mechanical stretch sample machining devices, to solve above-mentioned background
The problem of being mentioned in technology.
To achieve the above object, the utility model provides the following technical solutions：A kind of injection molding machine nozzle and die bushing
Connected structure, including injection molding machine nozzle and injection mold bushing, injection molding machine nozzle are mounted on injection molding machine, injection mold bushing peace
On injection mold, the outside of the injection mold bushing is equipped with an outwardly projecting long mouth of tubulose, the long mouth of tubulose
Bore passages through injection mold bushing lead to injection mold inner mold chamber；A corral is provided on injection mold bushing around pipe
The seal groove of the root shape Chang Kou, the bottom surface of the seal groove are the arcwall face of indent；The end of the injection molding machine nozzle is provided with width
Mouth channel, wide opening channel lead to injection molding machine inner molten chamber；The wide opening channel outer rim end face of the injection molding machine nozzle is raised
Curved end；The long mouth of the tubulose is inserted in wide opening channel, and the curved end of wide opening channel outer rim withstands on seal groove
In lower arcuate surface.
The long mouth of the tubulose of the utility model is inserted in wide opening channel, and injection molding machine nozzle withstands on note in the way of the prior art
On mould bushing.The curved end of injection molding machine nozzle wide opening channel outer rim, which is withstood on, forms sealing in the lower arcuate surface of seal groove,
The long mouth of tubulose, which probes into, reaches injection molding machine inner molten chamber inside injection molding machine nozzle.
Two part of the utility model（Injection molding machine nozzle and injection mold bushing）On melt mouth be in fact exactly the long mouth of tubulose
Bore passages.It is different from two-part melt mouth in the prior art, two-part melt mouth such as Fig. 1 of the prior art（a）In master
Runner 11 and jet hole 21.
Preferably, the wide opening channel is the constant straight channel of internal diameter, and the outer surface of the long mouth of tubulose is equipped with
The circular protruding block of projecting effect.When more mold exchange, circular protruding block can extract the plastic column solidified in wide opening channel,
So that the long mouth of the tubulose of next group of mold is smoothly inserted into.
Preferably, the injection molding machine nozzle and die bushing use red copper material.
To sum up, the technological merit of the utility model is：
（1）The melt mouth of the utility model is exactly the bore passages of the long mouth of tubulose, is one-part form structure.Referring to attached drawing 1
(a), two-part melt mouth needs for be overlapped the central axes of sprue 11 and jet hole 21 in docking in the prior art, therefore mould
The installation accuracy of tool and nozzle requires high.And the utility model is one-part form melt mouth, without carrying out central axes precision adjustment, directly
Docking top tight sealing is connect, operating process is fairly simple, under any circumstance, melt mouth（The bore passages of the long mouth of tubulose）It is interior
The stock column formed after solidification all can be extracted out smoothly.
（2）Referring to attached drawing 1 (a), two-part melt mouth is needed in docking by sprue 11 and jet hole in the prior art
21 bore requires, i.e. the bore of jet hole 21 is less than the bore of sprue 11.Therefore in more mold exchange, nozzle is also wanted
It replaces therewith, operating process trouble seriously affects equipment operation rate.The bore passages of the long mouth of the utility model tubulose are covered by
In injection molding machine nozzle wide opening channel, the bore passages bore of the long mouth of tubulose can be opened up according to actual requirement.Therefore when more mold exchange,
No replacement is required nozzle, is greatly saved the time, improves the operating efficiency of machine.
Detailed description of the invention
Fig. 1（a）Schematic diagram is docked for nozzle in the prior art and die bushing；
Fig. 1（b）For nozzle in the prior art and die bushing structural schematic diagram；
Fig. 1（c）For situation schematic diagram when cambered surface mismatches is docked between nozzle and die bushing in the prior art；
Fig. 1（d）Situation schematic diagram when being mismatched between nozzle diameter in the prior art and die bushing runner；
Fig. 2 is the structural schematic diagram of each component of the utility model；
Fig. 3 is that plastic nozzle and injection mold bushing dock schematic diagram in the utility model.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.Referring to 2 He of attached drawing
Attached drawing 3, a kind of connected structure of injection molding machine nozzle and die bushing, including injection molding machine nozzle 4 and injection mold bushing 3, injection molding
Machine nozzle 4 is mounted on injection molding machine, and injection mold bushing 3 is mounted on injection mold 5, the outside of the injection mold bushing 3
Equipped with an outwardly projecting long mouth 32 of tubulose, the bore passages 31 of the long mouth 32 of tubulose are led to through injection mold bushing 3
The inner mold chamber of injection mold 5；A corral is provided on injection mold bushing 3 around the seal groove 33 of long 32 root of mouth of tubulose, it is described
The bottom surface of seal groove 33 is the arcwall face of indent；The end of the injection molding machine nozzle 4 is provided with wide opening channel 42, and wide opening channel 42 is logical
Toward injection molding machine inner molten chamber 43；42 outer rim end face 41 of wide opening channel of the injection molding machine nozzle 4 is the curved end of protrusion；Institute
The long mouth 32 of the tubulose stated is inserted in wide opening channel 42, and 42 outer rim end face 41 of wide opening channel withstands on the lower arcuate surface of seal groove 33
On.
The long mouth 32 of the tubulose of the utility model is inserted in wide opening channel 42, and injection molding machine nozzle 4 is in the way of the prior art
It withstands on injection mold bushing 3.The outer rim end face 41 in wide opening channel 42 withstands on and forms sealing in the lower arcuate surface of seal groove 33, pipe
The long mouth 32 of shape probes into arrival injection molding machine inner molten chamber 43 inside injection molding machine nozzle 4.
Two part of the utility model（Injection molding machine nozzle 4 and injection mold bushing 3）On melt mouth be in fact exactly that tubulose is long
The bore passages 31 of mouth 32.It is different from two-part melt mouth in the prior art, two-part melt mouth such as Fig. 1 of the prior art（a）
In sprue 11 and jet hole 21.
Wide opening channel 31 is the constant straight channel of internal diameter, and the outer surface of the long mouth 32 of tubulose has been equipped with the annulus of projecting effect
Shape protruding block 34.When more mold exchange, circular protruding block 34 can extract the plastic column solidified in wide opening channel 42, so as to next
The long smoothly insertion of mouth 32 of the tubulose of group mold.Injection molding machine nozzle 4 and die bushing 3 use red copper material.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
It makes a variety of changes.It should be understood that all other specific embodiments based on the utility model are practical new at this
Within the protection scope of type.
Claims (3)
1. the connected structure of a kind of injection molding machine nozzle and die bushing, including injection molding machine nozzle and injection mold bushing, injection molding machine
Nozzle is mounted on injection molding machine, and injection mold bushing is mounted on injection mold, it is characterised in that：The injection mold bushing
Outside is equipped with an outwardly projecting long mouth of tubulose, and the bore passages of the long mouth of tubulose lead to injection molding through injection mold bushing
The inner mold chamber of mold；A corral is provided on injection mold bushing around the seal groove of the root tubulose Chang Kou, the bottom of the seal groove
Face is the arcwall face of indent；The end of the injection molding machine nozzle is provided with wide opening channel, and wide opening channel leads to injection molding machine inner molten
Chamber；The wide opening channel outer rim end face of the injection molding machine nozzle is the curved end of protrusion；It is logical that the long mouth of the tubulose is inserted in wide opening
In road, the curved end of wide opening channel outer rim is withstood in the lower arcuate surface of seal groove.
2. the connected structure of a kind of injection molding machine nozzle and die bushing according to claim 1, which is characterized in that described
Wide opening channel is the constant straight channel of internal diameter, and the outer surface of the long mouth of tubulose has been equipped with the annular shape protrusion of projecting effect
Block.
3. the connected structure of a kind of injection molding machine nozzle and die bushing according to claim 1, which is characterized in that described
Injection molding machine nozzle and die bushing use red copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820207906.4U CN208133480U (en) | 2018-02-07 | 2018-02-07 | A kind of connected structure of injection molding machine nozzle and die bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820207906.4U CN208133480U (en) | 2018-02-07 | 2018-02-07 | A kind of connected structure of injection molding machine nozzle and die bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208133480U true CN208133480U (en) | 2018-11-23 |
Family
ID=64286672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820207906.4U Expired - Fee Related CN208133480U (en) | 2018-02-07 | 2018-02-07 | A kind of connected structure of injection molding machine nozzle and die bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208133480U (en) |
-
2018
- 2018-02-07 CN CN201820207906.4U patent/CN208133480U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181123 Termination date: 20200207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |