CN203141785U

CN203141785U - Mold opening mechanism with double inclining guide pillars for injection mold

Info

Publication number: CN203141785U
Application number: CN 201320053115
Authority: CN
Inventors: 阳林; 胡卫光; 黄昌奉
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2013-01-31
Filing date: 2013-01-31
Publication date: 2013-08-21
Anticipated expiration: 2023-01-31

Abstract

The invention relates to a mold opening mechanism of a double inclined guide post for an injection mold, which is used to solve the problem of smooth ejection of an injection molded product with a deep cavity and an undercut position. It includes a wedge block, a first slide block, a second slide block, a spring assembly, a guide rail, a small insert and a large insert, and an oblique guide post is installed on the wedge block, and the oblique guide post is connected with the first slide block Matching with the second slider, the first slider, the second slider and the small insert are fitted, they are installed in the inner cavity of the large insert, the guide rail is installed at the bottom of the first slider, and the first slider A spring assembly is installed between the second slide block. The utility model has the characteristics of simple structure and stable performance. It can not only ensure the smooth demoulding of injection molding products with deep cavity reverse buckles, avoid damage to the appearance quality of products, meet the qualification rate and assembly requirements of injection molding products, but also reduce the Improve the maintenance rate and use cost of the mold.

Description

A kind of diclinic guide pillar die opening mechanism of injection mold

Technical field

The utility model relates to a kind of injection mold die opening mechanism, and especially a kind of diclinic guide pillar die opening mechanism that is applicable to the injecting products mould that has the back-off position belongs to the injection molding apparatus technical field.

Background technology

At present, injecting products is widely used with its low cost, light-weighted advantage, and especially in automobile manufacture industry, a lot of attached parts have all been selected plastic material for use, with injection molding process production.Because the shape of car accessories and structure be more complicated (for example there is back-off position, dark chamber within it in the fascia series products in portion's assembly structure) all, has caused product depanning difficulty in the injection moulding process, has influenced product appearance quality and qualification rate.

The problem that is difficult to smooth depanning at injecting products back-off position, conventional solution is to adopt oblique top mechanism that injecting products spare is ejected from die cavity, but to being in the back-off position, the dark chamber of product in the small space, thin because of oblique top, the oblique top mating holes is little, and not only Mould Machining difficulty, precision are difficult for guaranteeing, and oblique top easy fracture, the maintenance rate height, product stability is poor, brings adverse effect for the assembly quality of product.

The utility model content

The purpose of this utility model is the drawback at prior art, provide a kind of simple in structure, practical, can make the smooth demoulding of injecting products that has back-off position, dark chamber, the diclinic guide pillar die opening mechanism of avoiding the product appearance quality is caused damage, satisfies the injection mold of product percent of pass and matching requirements.

Problem described in the utility model realizes with following technical proposals:

A kind of diclinic guide pillar die opening mechanism of injection mold; it comprises wedge block, first slide block, second slide block, spring assembly, guide rail, inserts for a short time and insert greatly; on the described wedge block Angle Pin is installed; described Angle Pin and first slide block and second slide block coupling; described first slide block, second slide block with insert for a short time equipped; they are installed in the inner chamber of inserting greatly, at the first slider bottom mounting guide rail, and mounting spring assembly between first slide block and second slide block.

The diclinic guide pillar die opening mechanism of above-mentioned injection mold; described wedge block is fixed on the cover half of injection mold by the wedge block set bolt; described Angle Pin comprises first Angle Pin and second Angle Pin, described first Angle Pin and second slide block coupling, described second Angle Pin and first slide block coupling.

The diclinic guide pillar die opening mechanism of above-mentioned injection mold; the described first upper end of slide block inboard is provided with the inboard back-off position boss with injecting products back-off position coupling; below the boss of inboard back-off position, the spring assembly installing hole is set; be provided with second Angle Pin at the other end relative with the spring assembly installing hole and pass the hole; on first slide block, also be provided with the groove confined planes, described groove confined planes and second slide block coupling.

The diclinic guide pillar die opening mechanism of above-mentioned injection mold; described second upper end of slide block outside is provided with back-off position, the outside boss with injecting products back-off position coupling; be provided with first Angle Pin at an end relative with back-off position, outside boss and pass the hole; on second slide block, also be provided with the boss confined planes, the groove confined planes coupling of described boss confined planes and first slide block.

The diclinic guide pillar die opening mechanism of above-mentioned injection mold, described inserting for a short time by pin and the assembling of inserting greatly of inserting, inserting for a short time arranges the back-off position groove that mates with injecting products back-off position, below the groove of back-off position the slide block confined planes is set.

The diclinic guide pillar die opening mechanism of above-mentioned injection mold; described inserting greatly is cavity structure, is provided with the cover of inserting for a short time at an upper portion thereof and behave affectedly, and the bottom is provided with the slide block container cavity; the described cover of inserting is for a short time behave affectedly and injecting products back-off position coupling, is provided with the spring assembly installing technological hole at the sidewall of slide block container cavity.

The diclinic guide pillar die opening mechanism of above-mentioned injection mold, described spring assembly comprise compression spring and spring plug, and described compression spring is installed between spring plug and the second slide block lateral wall, and described spring plug is screwed onto in the spring assembly installing hole of first slide block.

The diclinic guide pillar die opening mechanism of above-mentioned injection mold, described guide rail is by guide rail hold-down screw and the fixing assembling of first slide block.

The utility model coupling has back-off position, dark chamber injecting products mould, adopt diclinic guide pillar die sinking structure, stir first slide block, the second slide block relative motion by two Angle Pins that assemble at wedge block, simultaneously under the effect of compression spring force, make the inboard back-off position boss on first slide block, back-off position, the outside boss on second slide block thoroughly separate the interference of mould and product back-off position when having avoided injecting products to eject with product back-off position; The utility model cooperates by the first slide block boss confined planes and the second slide block groove confined planes, define first slide block and the position of second slide block when die opening state, define first slide block and second slide block position when the matched moulds state by the slide block confined planes on inserting for a short time, guaranteed finishing smoothly of injection mold die sinking and mould assembling action.In a word, the utlity model has characteristics simple in structure, stable performance, the infringement of can not only guarantee to have the smooth demoulding of dark chamber back-off position injecting products, having avoided the product appearance quality is caused, satisfy injecting products qualification rate and matching requirements, and reduced maintenance rate and the use cost of mould.

Description of drawings

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

Fig. 1 is blast structure chart of the present utility model;

Fig. 2 is the cross-sectional view of the utility model die opening state;

Fig. 3 is the cross-sectional view of the utility model matched moulds state;

Fig. 4 is the cross-sectional view of wedge block;

Fig. 5 is the cross-sectional view of first slide block;

Fig. 6 is the cross-sectional view of second slide block;

Fig. 7 is the cross-sectional view of inserting greatly;

Fig. 8 is the cross-sectional view of inserting for a short time.

Each list of reference numerals is among the figure: 1, first slide block, 1-1, inboard back-off position boss, 1-2, the groove confined planes, 1-3, second Angle Pin passes the hole, 1-4, the spring assembly installing hole, 2, second slide block, 2-1, back-off position, outside boss, 2-2, the boss confined planes, 2-3, first Angle Pin passes the hole, and 3, guide rail, 4, wedge block, 5, insert greatly, 5-1, the slide block container cavity, 5-2, for a short time the cover of inserting is behave affectedly 5-3, the spring assembly installing technological hole, 6, for a short time insert, 6-1, the slide block confined planes, 6-2, back-off position groove, 7, the compression spring, 8, the spring plug, 9, the pin of inserting, 10, the wedge block set bolt, 11, first Angle Pin, 12, second Angle Pin, 13, the guide rail hold-down screw.

The specific embodiment

Referring to Fig. 1, Fig. 2, Fig. 3, the utility model with have back-off position, dark chamber injecting products mould coupling, it comprises wedge block 4, first slide block 1, second slide block 2, spring assembly, guide rail 3, inserts 6 and insert 5 greatly for a short time, on the described wedge block 4 Angle Pin is installed, described Angle Pin and first slide block 1 and second slide block, 2 couplings, described first slide block 1, second slide block 2 and insert 6 equipped for a short time, they are installed in 5 the inner chamber inserted greatly, at first slide block, 1 bottom mounting guide rail 3, mounting spring assembly between first slide block 1 and second slide block 2; Described spring assembly comprises compression spring 7 and spring plug 8, and described compression spring 7 is installed between spring plug 8 and second slide block, 2 lateral walls, and described spring plug 8 and first slide block 1 are spirally connected.

Referring to Fig. 4, wedge block 4 of the present utility model is fixed on the cover half of injection mold by wedge block set bolt 10, described Angle Pin comprises first Angle Pin 11 and second Angle Pin 12, described first Angle Pin 11 and second slide block, 2 couplings, described second Angle Pin 12 and first slide block, 1 coupling.

Referring to Fig. 5, inboard, first slide block, 1 upper end of the present utility model is provided with the inboard back-off position boss 1-1 with injecting products back-off position coupling, below the boss 1-1 of inboard back-off position, spring assembly installing hole 1-4 is set, be provided with second Angle Pin at the other end relative with spring assembly installing hole 1-4 and pass hole 1-3, on first slide block, also be provided with groove confined planes 1-2, described groove confined planes 1-2 and second slide block, 2 couplings.

Referring to Fig. 6, the outside, second slide block of the present utility model, 2 upper ends is provided with back-off position, the outside boss 2-1 with injecting products back-off position coupling, be provided with first Angle Pin at the other end relative with back-off position, outside boss 2-1 and pass hole 2-3, on second slide block 2, also be provided with boss confined planes 2-2, the groove confined planes 1-2 coupling of described boss confined planes 2-2 and first slide block, when the injection mold die sinking, cooperate the position that limits first slide block 1 and second slide block 2 with the groove confined planes 1-2 of first slide block by boss confined planes 2-2.

Referring to Fig. 7, of the present utility modelly insert 5 greatly for cavity structure, being provided with the cover of inserting for a short time 5-2 that behave affectedly at an upper portion thereof, the bottom is provided with slide block container cavity 5-1, mate behave affectedly 5-2 and injecting products back-off position of the described cover of inserting for a short time, is provided with spring assembly installing technological hole 5-3 at the sidewall of slide block container cavity 5-1.

Referring to Fig. 1, Fig. 8, of the present utility modelly insert 6 for a short time by pin 9 and 5 assemblings of inserting greatly of inserting, at the 6 back-off position groove 6-2 that arrange with injecting products back-off position coupling that insert for a short time, slide block confined planes 6-1 is set below the groove 6-2 of back-off position, behind the injection mold matched moulds, limit the position of first slide block 1 and second slide block 2 by slide block confined planes 6-1.

Referring to Fig. 2, the utility model is when the injection mold die sinking, and wedge block 4 is followed cover half and moved upward, and stirs first slide block 1,2 relative motions of second slide block by two Angle Pins that assemble on the wedge block; Simultaneously under the 7 elastic force effects of compression spring, inboard back-off position boss 1-1 on first slide block 1, back-off position, the outside boss 2-1 on second slide block 2 are thoroughly separated with the back-off position of product, the boss confined planes 2-2 that first slide block 1, second slide block 2 slide into second slide block relatively contacts the back stop motion with the groove confined planes 1-2 of first slide block, this moment, injection mold was in die opening state, injecting products is ejected by the workpiece ejecting mechanism of mould, realizes the smooth demoulding.

Referring to Fig. 3, the utility model is when the injection mold matched moulds, and wedge block 4 is followed cover half and moved downward, and stirs first slide block 1,2 relative motions of second slide block by two Angle Pins of assembling on the wedge block 4; First slide block 1, second slide block 2 slide into relatively with 6 the slide block confined planes 6-1 of inserting for a short time and contact the back stop motion, and this moment, injection mold was in the matched moulds state.

Claims

1. A mold opening mechanism with double inclined guide posts for injection molds, characterized in that it includes a wedge block (4), a first slider (1), a second slider (2), a spring assembly, a guide rail (3 ), a small insert (6) and a large insert (5), the wedge block (4) is equipped with an oblique guide column, and the oblique guide column is connected with the first slider (1) and the second slider (2 ) match, the first slider (1), the second slider (2) and the small insert (6) are assembled, they are installed in the inner cavity of the large insert (5), and the first slider ( 1) Install the guide rail (3) at the bottom, and install the spring assembly between the first slider (1) and the second slider (2).

2. A mold opening mechanism for double-slanted guide posts of an injection mold according to claim 1, characterized in that, the wedge block (4) is fixed on the fixed mold of the injection mold by the wedge block fixing bolt (10) Above, the slanted guide post includes a first slanted guide post (11) and a second slanted guide post (12), the first slanted guide post (11) matches the second slider (2), and the second The inclined guide post (12) matches the first slide block (1).

3. A mold opening mechanism with double inclined guide pillars for an injection mold according to claim 1 or 2, characterized in that, the inner side of the upper end of the first slider (1) is provided with an inner side that matches the undercut position of the injection molded product The undercut boss (1-1), the spring assembly installation hole (1-4) is set under the inner undercut boss (1-1), and the other end opposite to the spring assembly installation hole (1-4) A second oblique guide post is provided through the hole (1-3), and a groove limit surface (1-2) is also provided on the first slider, and the groove limit surface (1-2) is connected with the first slider. The two sliders (2) match.

4. The mold opening mechanism of double inclined guide pillars for injection molds according to claim 3, characterized in that, the outer side of the upper end of the second slider (2) is provided with an outer undercut matching the undercut position of the injection molded product The bit boss (2-1), on the other end opposite to the outer buckle bit boss (2-1), there is a first oblique guide post through hole (2-3), on the second slider (2) A boss limiting surface (2-2) is also provided on the top, and the boss limiting surface (2-2) matches the groove limiting surface (1-2) of the first slider.

5. A mold opening mechanism for double inclined guide pillars of an injection mold according to claim 4, characterized in that the small insert (6) is assembled with the large insert (5) through insert pins (9), Set an undercut groove (6-2) on the small insert (6) that matches the undercut of the injection molding product, and set a slider limit surface (6-1) under the undercut groove (6-2) ).

6. A mold opening mechanism for double inclined guide pillars of an injection mold according to claim 5, characterized in that the large insert (5) is a cavity structure, and a small insert set cavity ( 5-2), the lower part is provided with a slider housing cavity (5-1), the small insert set cavity (5-2) matches the reverse buckle of the injection molded product, and on the side of the slider housing cavity (5-1) The wall is provided with a spring assembly installation process hole (5-3).

7. A mold opening mechanism for double inclined guide posts of an injection mold according to claim 6, wherein the spring assembly includes a compression spring (7) and a spring plug (8), and the compression spring (7 ) is installed between the spring plug (8) and the outer wall of the second slider (2), and the spring plug (8) is screwed into the spring assembly mounting hole (1-4) of the first slider.

8 . The mold opening mechanism of a double-slope guide post for an injection mold according to claim 7 , wherein the guide rail ( 3 ) is fixedly assembled with the first slider ( 1 ) through guide rail fixing screws ( 13 ).