CN203125855U

CN203125855U - Positioning device of injection mould

Info

Publication number: CN203125855U
Application number: CN 201220585922
Authority: CN
Inventors: 黄沛锋; 梁士科
Original assignee: GUANGXI WUZHOU WUYI PLASTIC PRODUCT CO Ltd
Current assignee: GUANGXI WUZHOU WUYI PLASTIC PRODUCT CO Ltd
Priority date: 2012-11-08
Filing date: 2012-11-08
Publication date: 2013-08-14
Anticipated expiration: 2022-11-08

Abstract

The utility model discloses a positioning device of an injection mould. The positioning device comprises a movable mould, a fixed mould, positioning guide columns arranged on the movable mould and positioning guide sleeves arranged on the fixed mould, wherein the middle sections of the positioning guide columns are cones; the back sections of inner holes of the positioning guide sleeves are conical holes; the movable mould is provided with four positioning guide columns; the four positioning guide sleeves are arranged at the corresponding positions of the fixed mould; and when cylinders at the front sections of the positioning guide columns and circular holes at the front sections of the positioning guide sleeves are worn for long time to enlarge a gap, the matching of the positioning guide columns and the positioning guide sleeves is more tight due to the property of matching the cones and the conical holes. With the adoption of the positioning device disclosed by the utility model, the maintaining frequency of the mould is reduced and the service life of the mould is greatly prolonged.

Description

The injection mold positioner

Technical field

The utility model relates to mould of plastics manufacturing technology field, especially a kind of injection mold positioner with positioning guide column and location guide pin bushing.

Background technology

At present in the injection machine mould, location when dynamic model and cover half matched moulds all is to realize by the location guide pin bushing that the positioning guide column insertion that is located on their central modules is located on another module, generally speaking, positioning guide column is cylindrical shape, the endoporus of location guide pin bushing is circular hole, insert the location guide pin bushing for the ease of positioning guide column, the gap that arranges between positioning guide column and the location guide pin bushing can not be too small; In addition, working of plastics of the every injection moulding of injection machine, positioning guide column on the injection mold dynamic model just pass in and out on the cover half the location guide pin bushing each once, often injection mold folding on a working day mould reaches hundreds of inferior even thousands of time, so just cause friction mutually between positioning guide column and the location guide pin bushing, the two gap constantly increases, and when the two gap reached certain value, problem of misalignment will appear in dynamic model and cover half matched moulds.Will inevitably there be following deficiency in existing this technical scheme for above-mentioned reasons: 1, positioning guide column and guide pin bushing gap, location are big, cause fixed half and moving half matched moulds position instability, and the die cavity dislocation of dynamic model, cover half influences product quality, even produces defective work; 2, the wearing and tearing of positioning guide column and location guide pin bushing aggravate the positioning guide column that need more renew and locate guide pin bushing, also can cause cover half or dynamic model to damage when serious, and reduce die life.

The utility model content

The purpose of this utility model provides a kind of injection mold positioner, this injection mold positioner causes the problem of injection mold die cavity dislocation, minimizing to repair a die the time after can solving positioning guide column and the increase of guide pin bushing gap, location, and improved die life greatly.

In order to address the above problem, the technical solution adopted in the utility model is:

This injection mold positioner comprises dynamic model, cover half, and be contained in the positioning guide column on the dynamic model and be contained in location guide pin bushing on the cover half, the described positioning guide column that is contained on the dynamic model is four, the corresponding described location guide pin bushing that is contained on the cover half is four, described positioning guide column stage casing is cone, and described location guide pin bushing endoporus external port is conical bore.

Owing to adopted technique scheme, the utility model compared with prior art has following beneficial effect:

1, positioning guide column is cooperating of cylinder and circular hole with location guide pin bushing leading portion, back segment is cone and the cooperating of taper hole, the characteristic that leading portion wearing and tearing back cooperates with taper hole owing to the back segment cone, it is tightr that cone will be cooperated with taper hole, solved the problem of injection moulding die cavity dislocation.

2, positioning guide column and location guide pin bushing can be because front end wearing and tearing or cover half, dynamic model do not damage to cause and repair a die, and improve the service life of mould greatly.

Description of drawings

Positioning guide column and location guide pin bushing cooperated schematic diagram when Fig. 1 was injection machine mould matched moulds.

Positioning guide column and location guide pin bushing cooperated schematic diagram when Fig. 2 was the die sinking of injection machine mould.

Fig. 3 is location guide pin bushing front view.

Fig. 4 is the positioning guide column front view.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing embodiment:

Injection mold positioner shown in Figure 1, it is at dynamic model 2 four positioning guide column 4 to be installed, corresponding to the positioning guide column 4 on the dynamic model 2 is corresponding on cover half 1 four location guide pin bushings 3 are housed, the stage casing of each positioning guide column 4, namely the D section of the root of close dynamic model 2 is cone, and B section of outer end of hole is conical bore in each location guide pin bushing 3.

During the injection mold matched moulds, as shown in Figure 1, positioning guide column 4 enters in the guide pin bushing 3 of location, locatees A face on the guide pin bushing 3, B face this moment and cooperates with C face, D face on the positioning guide column 4 respectively; During the die sinking of injection machine mould, as shown in Figure 2, the A face of location on the guide pin bushing 3, B face separate with C face, D face on the positioning guide column 4 respectively; Behind the working of plastics of mould production some, C face, D face on A face, B face and the positioning guide column 4 on the guide pin bushing 3 of location all can wear and tear, this moment, A face and C face gap were strengthened, the B face can't make the gap between them strengthen with the characteristic that the D face cooperates with taper hole owing to cone, just can make the D face more be adjacent to the B face, in this case, marked change can not take place in the location of whole injection mold, and be improved the service life of mould.

Claims

1. injection mold positioner, comprise dynamic model, cover half, and be contained in the positioning guide column on the dynamic model and be contained in location guide pin bushing on the cover half, it is characterized in that: the described positioning guide column that is contained on the dynamic model is four, the corresponding described location guide pin bushing that is contained on the cover half is four, described positioning guide column stage casing is cone, and described location guide pin bushing endoporus external port is conical bore.