CN206536786U

CN206536786U - Mould with profile-followed air discharge duct

Info

Publication number: CN206536786U
Application number: CN201720122604.2U
Authority: CN
Inventors: 贺正平
Original assignee: BAOJU (CHINA) CHILDREN'S ARTICLES Co Ltd
Current assignee: BAOJU (CHINA) CHILDREN'S ARTICLES Co Ltd
Priority date: 2017-02-09
Filing date: 2017-02-09
Publication date: 2017-10-03
Anticipated expiration: 2027-02-09

Abstract

The utility model discloses a kind of mould with profile-followed air discharge duct, die cavity including a die joint and on die joint, die joint is concavely provided with the air discharge duct of connection die cavity, one end of the close die cavity of air discharge duct has end face, the shape of end face and the cavity wall edge shape of die cavity are adapted, and the cavity wall edge tool of end face and die cavity is at regular intervals, the side of mould is run through in one end of the remote die cavity of air discharge duct.Because the shape of the end face of air discharge duct and the shape at cavity wall edge of die cavity are adapted, and a constant space is kept therewith, thus exhaust can be made more balanced, improve exhaust effect, so as to improve product quality.

Description

Mould with profile-followed air discharge duct

Technical field

The utility model is related to mould applications, more particularly to a kind of with profile-followed air discharge duct, the mould of good exhaust effect.

Background technology

Sample produces aberration, dark line, flow liner, table after the completion of raw material lack of fill or injection often occurs in injection molding The problems such as face is recessed, its main cause is that the excessive gas of mould inside is not discharged, and the excessive gas is mostly come from die cavity Plastics point under the vapor of generation, high temperature are evaporated at high temperature with the moisture contained in air present in running gate system, raw material Gas produced by solving the gas produced, the volatilization of some additives or chemically reacting etc..The reasonably row of opening up on mould Air drain can substantially reduce the ginseng such as injection pressure, injection time, dwell time and locked mode pressure to discharge the gas that these are unnecessary Number, so as to improve product quality and production efficiency.

At present, the mode of discharge excessive gas mainly increases air discharge duct on mould, will be unnecessary using a large amount of air discharge ducts Gas is discharged, but when the product edge to be produced is abnormity, the mode of increase air discharge duct can not realize exhaust well Effect, so as to cause product qualification rate to reduce.

Therefore, it is necessary to a kind of exhaust equilibrium, the mould of good exhaust effect be provided, to overcome above-mentioned technical problem.

Utility model content

The purpose of this utility model is to provide a kind of exhaust equilibrium, the mould with profile-followed air discharge duct of good exhaust effect Tool.

To achieve the above object, the technical solution of the utility model is：A kind of mould with profile-followed air discharge duct is provided, its Die cavity including a die joint and on die joint, die joint be concavely provided with connection die cavity air discharge duct, air discharge duct it is close One end of die cavity has end face, and the shape of end face and the cavity wall edge shape of die cavity are adapted, and the cavity wall of end face and die cavity Edge tool is at regular intervals, and the side of mould is run through in one end of the remote die cavity of air discharge duct.

It is preferred that the cavity wall edge of die cavity is rounded, end face is in circular arc and parallel with the cavity wall edge of die cavity.

It is preferred that the distance between cavity wall edge of end face and die cavity is 0.8mm.

It is preferred that the spacing between the bottom surface of air discharge duct and die joint is 0.4mm.

It is preferred that the width of air discharge duct is 4.5mm.

It is preferred that die joint is concavely provided with the groove of a connection air discharge duct and die cavity.

It is preferred that the spacing between the bottom surface of groove and die joint is 0.02mm.

Compared with prior art, due to the mould of the present utility model with profile-followed air discharge duct, its die joint is concavely provided with The air discharge duct of die cavity is connected, one end of the close die cavity of air discharge duct has end face, the shape of end face and the cavity wall edge of die cavity Shape is adapted and has at regular intervals therewith, and the side of mould is run through in one end of the remote die cavity of air discharge duct.Therefore, die cavity Cavity wall edge is arbitrary shape, when in particular special-shaped, due to the shape that the end face formation of air discharge duct is adapted with cavity wall edge, and A constant space is kept therewith, thus exhaust can be made more balanced, improves exhaust effect, so as to improve product quality.

Brief description of the drawings

Fig. 1 is the structural representation for the mould that the utility model has profile-followed air discharge duct.

Fig. 2 is Fig. 1 top view.

Fig. 3 is the sectional view of the line A-A along along Fig. 2.

Fig. 4 is the enlarged diagram of part B in Fig. 2.

Fig. 5 is the enlarged diagram of C portion in Fig. 3.

【Symbol description】

The die joint 110 of mould 100

120 die cavity 130 sideways

The air discharge duct 140 of cavity wall edge 131

The bottom surface 142 of end face 141

Groove 150

Embodiment

Element numbers similar in embodiment of the present utility model, accompanying drawing, which are described, with reference now to accompanying drawing represents similar member Part.

As Figure 1-4, the mould 100 provided by the utility model with profile-followed air discharge duct, it includes a die joint 110 and it is vertically connected at least one side 120 of die joint 110, offers at least one die cavity 130 on die joint 110, and The air discharge duct 140 of connection die cavity 130 is also arranged with die joint 110, one end of the close die cavity 130 of air discharge duct 140 has one End face 141, the shape of end face 141 is adapted with the shape of cavity wall edge 131 of die cavity 130, and the chamber of end face 141 and die cavity 130 Wall edge 131 has at regular intervals, and the side 120 of mould is run through in one end of the remote die cavity 130 of air discharge duct 140.

With reference to shown in Fig. 2-5, in a kind of preferred embodiment, the product edge that need to be molded is circle, therefore, die cavity 130 cavity wall edge 131 is circular (see Fig. 4), by the end face 141 of air discharge duct 140 set it is in the arc-shaped and with the chamber of die cavity 130 Wall edge 131 is parallel, makes to keep constant spacing between the two, so that exhaust is more balanced, thus improves exhaust effect.

Preferably, the distance between cavity wall edge 131 of the end face 141 of air discharge duct 140 and die cavity 130 L1 is 0.8mm, row The width L2 of air drain 140 is 4.5mm, as shown in Figure 4.In addition, the spacing between the bottom surface 142 of air discharge duct 140 and die joint 110 H1 is 0.4mm, i.e. the depth of air discharge duct 140 is 0.4mm, as shown in Figure 5.But it is not limited, can also be according to different moulds Tool flexibly sets correlation values.

With reference to shown in Fig. 3,5, a connection air discharge duct 140 and die cavity 130 are also arranged with the die joint 110 of mould 100 Groove 150, the groove 150 is between the end face 141 and die cavity 130 of air discharge duct 140, and the depth of groove 150 is 0.02mm, That is, spacing h2 between the bottom surface of groove 150 and die joint 110 is 0.02mm, but its depth not limited to this, can be according to production need Flexibly to set.During injecting glue, originally the air in mould 100 was discharged through groove 150, air discharge duct 140.

In summary, due to the mould 100 of the present utility model with profile-followed air discharge duct, its die joint 110 is concavely provided with The air discharge duct 140 of die cavity 130 is connected, one end of the close die cavity 130 of air discharge duct 140 has end face 141, the shape of end face 141 The shape of cavity wall edge 131 of shape and die cavity 130 is adapted and has at regular intervals therewith, the remote die cavity 130 of air discharge duct 140 The side 120 of mould is run through in one end.Therefore, the cavity wall edge 131 of die cavity 130 is arbitrary shape, when in particular special-shaped, due to row The shape that the formation of end face 141 of air drain 140 is adapted with cavity wall edge 131, and a constant space is kept therewith, it thus can make row Gas is more balanced, improves exhaust effect, so as to improve product quality.

There is the utility model the structure of the other parts of the mould 100 of profile-followed air discharge duct to be those of ordinary skill in the art It is known, no longer it is described in detail herein.

Above disclosed is only preferred embodiment of the present utility model, can not limit this practicality with this certainly new The interest field of type, therefore the equivalent variations made according to present utility model application the scope of the claims, still belong to the utility model and are covered Scope.

Claims

1. a kind of mould with profile-followed air discharge duct, the mould includes a die joint and the die cavity on the die joint, It is characterized in that：The die joint is concavely provided with the air discharge duct for connecting the die cavity, the close die cavity of the air discharge duct One end has an end face, and the shape of the end face and the cavity wall edge shape of the die cavity are adapted, and the end face with it is described The cavity wall edge tool of die cavity is at regular intervals, and the side of the mould is run through in one end of the remote die cavity of the air discharge duct.

2. there is the mould of profile-followed air discharge duct as claimed in claim 1, it is characterised in that：The cavity wall edge of the die cavity is in circle Shape, the end face is in circular arc and parallel with the cavity wall edge of the die cavity.

3. there is the mould of profile-followed air discharge duct as claimed in claim 1, it is characterised in that：The chamber of the end face and the die cavity The distance between wall edge is 0.8mm.

4. there is the mould of profile-followed air discharge duct as claimed in claim 1, it is characterised in that：The bottom surface of the air discharge duct with it is described Spacing between die joint is 0.4mm.

5. there is the mould of profile-followed air discharge duct as claimed in claim 1, it is characterised in that：The width of the air discharge duct is 4.5mm。

6. there is the mould of profile-followed air discharge duct as claimed in claim 1, it is characterised in that：The die joint is concavely provided with a company Lead to the groove of the air discharge duct and the die cavity.

7. there is the mould of profile-followed air discharge duct as claimed in claim 6, it is characterised in that：The bottom surface of the groove with described point Spacing between type face is 0.02mm.