CN209111394U - Nozzle assembly and injection molding machine - Google Patents
Nozzle assembly and injection molding machine Download PDFInfo
- Publication number
- CN209111394U CN209111394U CN201821885047.0U CN201821885047U CN209111394U CN 209111394 U CN209111394 U CN 209111394U CN 201821885047 U CN201821885047 U CN 201821885047U CN 209111394 U CN209111394 U CN 209111394U
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- CN
- China
- Prior art keywords
- nozzle
- cascaded surface
- arrival end
- raw material
- radial hole
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Abstract
The utility model discloses a kind of nozzle assembly and injection molding machines.A kind of nozzle assembly, comprising: nozzle has the centre bore logical for hot melt raw material flow, offers the radial hole being connected to the centre bore close to the position on its head in the nozzle；Body is sheathed on the nozzle can block the radial hole, and the lower end of the body is formed with abutment plane；Spring is sheathed on the nozzle and for pushing down on to the body；Wherein: when the nozzle moves down, the abutment plane of the body is abutted with the plane of the periphery of the arrival end, and when the nozzle is displaced downwardly to low spot, the body releases the closure to the radial hole, and hot melt raw material enters the arrival end through the radial hole, body.
Description
Technical field
The utility model relates to injection molding technology field more particularly to a kind of nozzle assembly and with the injection molding of the nozzle assembly
Machine.
Background technique
As well-known technique, injection molding machine would generally include injection equipment, which makes the heat for injection molding
Molten raw material is sprayed into certain flow rate and is fastened in molding die cavity by upper mold and lower die to obtain shaped article by cooling.
Injection equipment sprays hot melt raw material, concrete mode to the arrival end for being opened in upper mold upper end by means of nozzle are as follows: spray
Penetrate that nozzle in mechanism is opposite with the arrival end of upper mold, under the driving of power mechanism (for example, under driving of hydraulic system), spray
Mouth moves down vertically, and then the tapered head of nozzle is made to stretch to arrival end, then release hot melt raw material, so that hot melt raw material
Enter in die cavity through arrival end, to realize spraying operation.
Above-mentioned injection equipment has the drawback that
1, need to make stringent concentric of nozzle and arrival end, otherwise, after nozzle stretches to arrival end, nozzle cannot be completed pair
The closure of arrival end, and then hot melt raw material flow is caused to go out outside mold, however, making arrival end and spray due to the installation error of mold
Tight-lipped lattice are almost impossible with one heart, in turn result in nozzle in the prior art and heat raw material often from arrival end in spraying operation
Place's outflow.
2, nozzle and entrance end in contact belong to rigid structure, that is to say, that when driving mechanism driving nozzle move down and with enter
The moment of mouth end in contact, nozzle and arrival end can generate impact, and the meeting under long-term impact is so that nozzle variant, the deformation of nozzle
Cause again so that nozzle and arrival end decentraction.
Utility model content
For the above-mentioned technical problems in the prior art, the embodiments of the present invention provide a kind of nozzle sets
Part.
In order to solve the above technical problems, the embodiments of the present invention the technical solution adopted is that:
A kind of nozzle assembly, for spraying hot melt raw material to the arrival end of upper mold, comprising:
Nozzle has the centre bore logical for hot melt raw material flow, the nozzle close to the position on its head offer with
The radial hole of the centre bore connection；
Body is sheathed on the nozzle can block the radial hole, and the lower end of the body is formed with abutting
Plane；
Spring is sheathed on the nozzle and for pushing down on to the body；Wherein:
When the nozzle moves down, the abutment plane of the body is abutted with the plane of the periphery of the arrival end, and is worked as
When the nozzle is displaced downwardly to low spot, the body releases the closure to the radial hole, heats raw material through the radial hole, body
Into the arrival end.
Preferably, the first cascaded surface is formed on the nozzle, the spring is located at first cascaded surface and the set
Between the upper end of body.
Preferably, the nozzle is additionally provided with opposite the second cascaded surface and third cascaded surface, second cascaded surface position
In the top of the third cascaded surface, second cascaded surface and the third cascaded surface are used to limit the axial of the body and move
Dynamic stroke.
The invention also discloses a kind of injection molding machines, form the upper die and lower die of die cavity including fastening, further include as above
The nozzle assembly stated, in which:
The upper end of the upper mold offers deep gouge, and the slot bottom of the deep gouge is interface, offered on the interface into
Mouth end, the bearing surface of the body is for being connected to the interface；The radial dimension of the deep gouge is greater than the body
Radial dimension.
Compared with prior art, the nozzle assembly of the utility model and the beneficial effect of injection molding machine are: the utility model is logical
Cross around the abutment plane and arrival end of body lower end contact block arrival end with prevent hot melt raw material outflow, because nozzle without
Arrival end need to be stretched to, so that body or nozzle are without strictly concentric with arrival end.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the nozzle assembly that the embodiments of the present invention provide.
Fig. 2 is the Status view that the nozzle assembly that the embodiments of the present invention provide is in front of spray operation.
Fig. 3 is the Status view that the nozzle assembly that the embodiments of the present invention provide is in spray operation.
In figure:
10- nozzle；The first cascaded surface of 11-；The second cascaded surface of 12-；13- third cascaded surface；14- radial hole；The center 15-
Hole；20- body；21- abutment plane；30- spring；100- upper mold；101- arrival end；102- deep gouge；1021- interface.
Specific embodiment
It is with reference to the accompanying drawing and specific real to make those skilled in the art better understand the technical solution of the utility model
Mode is applied to elaborate to the utility model.
As shown in Figure 1, the embodiments of the present invention disclose a kind of nozzle assembly, which belongs to injection molding machine
One component, the invention also discloses the injection molding machine with the nozzle assembly, which further includes mutual fasten with shape
At the upper mold 100 and lower die of die cavity, as shown in Fig. 2, the upper end of upper mold 100 offers arrival end 101, the arrival end 101 and mould
Chamber connection, 10 component of nozzle spray hot melt raw material by means of arrival end 101 into die cavity.The nozzle assembly includes nozzle 10, set
Body 20 and spring 30.Nozzle 10 has the centre bore 15 logical for hot melt raw material flow, the head closing of nozzle 10, close to nozzle 10
The position on head offer radial hole 14, which is connected to centre bore 15, also, on nozzle 10, from top to bottom
Be formed with the first cascaded surface 11, the second cascaded surface 12 and third cascaded surface 13, the first cascaded surface 11 and the second cascaded surface 12 downward,
Third cascaded surface 13 upward so that the second cascaded surface 12 is opposite with third cascaded surface 13.Body 20 is sheathed on nozzle 10, body
20 define the stroke of vertical shift with third cascaded surface 13 by the second cascaded surface 12, to realize the limit to body 20.Bullet
Spring 30 is sheathed on nozzle 10 and between the first cascaded surface 11 and body 20, and the spring 30 is for pushing down on to body 20.
In the present invention, the lower end of body 20 is formed with abutment plane 21.
The course of work of 10 component of said nozzle is described below and illustrates 10 component of nozzle of the utility model whereby
Advantage.
When needing to spray hot melt raw material to the arrival end 101 of upper mold 100, driven under 10 component of nozzle using power mechanism
It moves, before the lower end in contact upper mold 100 of the body 20 of 10 component of nozzle, under the action of 30 power of spring, body 20 is by third rank
The limitation of tread 13 with nozzle 10 without disengaging, at this point, as shown in Fig. 2, body 20 blocks radial hole 14 and prevents centre bore 15
In hot melt raw material via radial hole 14 flow out.
As shown in Fig. 2, 10 component of nozzle continues to move down, the abutment plane 21 of body 20 is resisted against entering for upper mold 100 first
In plane around mouth end 101, power mechanism continues that 10 component of nozzle is driven to move down, and spring 30 is constantly compressed, and body 20 is right
The pressure of upper mold 100 constantly increases, as shown in figure 3, spring 30 is no longer pressed when body 20 is limited by the second cascaded surface 12
Contracting, entire 10 component of nozzle no longer moves down, at this point, abutment plane 21 is maximum to the pressure of upper mold 100, at this point, body 20 because with
Nozzle 10 produces relative displacement and body 20 is made to relieve the closure to radial hole 14, and radial hole 14 is opened, centre bore 15
In hot melt raw material enter arrival end 101 via radial hole 14,20 inner lower of body, and then realize spraying operation.
The advantage of 10 component of nozzle provided by the utility model above-described embodiment is:
1, it contacts around the abutment plane 21 and arrival end 101 that the utility model passes through 20 lower end of body to block entrance
End 101 is to prevent hot melt raw material outflow, because nozzle 10 is without stretching to arrival end 101, so that body 20 or nozzle 10 are not necessarily to
It is stringent concentric with arrival end 101.
2, whether the utility model abuts with upper mold 100 according to body 20 and heats the logical of raw material in control centre hole 15
It is disconnected, so that hot melt raw material will not be flowed out from 10 component of nozzle when nozzle assembly is not contacted with upper mold 100.
In a preferred embodiment of the utility model, deep gouge 102 is offered in upper mold 100, the slot bottom of the deep gouge 102
Interface 1021 is formed, above-mentioned arrival end 101 is provided on bearing surface, and the radial dimension of deep gouge 102 is made to be greater than set simultaneously
The radial dimension of body 20 is so that body 20 still is able to stretch to deep gouge 102 when radial displacement occurs.In the present embodiment, it covers
Body 20 is contacted with the interface 1021 of the slot bottom of deep gouge 102 to block arrival end 101, even if there is a little hot melt raw material flat from abutting
It is sprayed between face 21 and interface 1021, the cell wall of deep gouge 102 also can have certain barrier effect to hot melt raw material, make ejection
Hot melt raw material is accommodated in deep gouge 102.
Above embodiments are only the exemplary embodiment of the utility model, are not used in limitation the utility model, this is practical new
The protection scope of type is defined by the claims.Those skilled in the art can be in the essence and protection scope of the utility model
It is interior, various modifications or equivalent replacements are made to the utility model, this modification or equivalent replacement also should be regarded as falling in originally practical new
In the protection scope of type.
Claims (4)
1. a kind of nozzle assembly, for spraying hot melt raw material to the arrival end of upper mold characterized by comprising
Nozzle has the centre bore logical for hot melt raw material flow, the nozzle close to the position on its head offer with it is described
The radial hole of centre bore connection；
Body is sheathed on the nozzle can block the radial hole, and the lower end of the body is formed with abutment plane；
Spring is sheathed on the nozzle and for pushing down on to the body；Wherein:
When the nozzle moves down, the abutment plane of the body is abutted with the plane of the periphery of the arrival end, and when described
When nozzle is displaced downwardly to low spot, the body releases the closure to the radial hole, and hot melt raw material enters through the radial hole, body
The arrival end.
2. nozzle assembly according to claim 1, which is characterized in that the first cascaded surface is formed on the nozzle, it is described
Spring is between first cascaded surface and the upper end of the body.
3. nozzle assembly according to claim 2, which is characterized in that the nozzle is additionally provided with the second opposite cascaded surface
With third cascaded surface, second cascaded surface is located at the top of the third cascaded surface, second cascaded surface and the third
Cascaded surface is used to limit the stroke of the axial movement of the body.
4. a kind of injection molding machine forms the upper die and lower die of die cavity including fastening, which is characterized in that further include such as claims 1 to 3
Any one of described in nozzle assembly, in which:
The upper end of the upper mold offers deep gouge, and the slot bottom of the deep gouge is interface, offers arrival end on the interface,
The bearing surface of the body is for being connected to the interface；The radial dimension of the deep gouge is greater than the radial ruler of the body
It is very little.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821885047.0U CN209111394U (en) | 2018-11-15 | 2018-11-15 | Nozzle assembly and injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821885047.0U CN209111394U (en) | 2018-11-15 | 2018-11-15 | Nozzle assembly and injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209111394U true CN209111394U (en) | 2019-07-16 |
Family
ID=67205236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821885047.0U Active CN209111394U (en) | 2018-11-15 | 2018-11-15 | Nozzle assembly and injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209111394U (en) |
-
2018
- 2018-11-15 CN CN201821885047.0U patent/CN209111394U/en active Active
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