CN207736645U - Three sleeve pull rod demoulding mechanism of injection mold - Google Patents
Three sleeve pull rod demoulding mechanism of injection mold Download PDFInfo
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- CN207736645U CN207736645U CN201721876809.6U CN201721876809U CN207736645U CN 207736645 U CN207736645 U CN 207736645U CN 201721876809 U CN201721876809 U CN 201721876809U CN 207736645 U CN207736645 U CN 207736645U
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- spacing ring
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- wall
- cavity
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Abstract
Three sleeve pull rod demoulding mechanism of injection mold,Including upper,Lower compound plate,Upper compound plate, which is divided into runner plate and divided into, sets inclined guide in cavity,It is set on lower compound plate and sets core and side action sliders on backing plate,Oblique guide hole is opened in side action sliders,Side action sliders,Cavity,There is the plastic part of injection molding between core,Plastic part four sides outer wall and upper end convex ribs processed respectively,It is characterized in that setting outer sleeve in the cavity,The first outer spacing ring of outer sleeve external wall of upper portion system,Outer sleeve lower inner wall is formed with spacing ring in first,Middle sleeve is set in outer sleeve,The second outer spacing ring of middle sleeve external wall of upper portion system,Spacing ring in middle sleeve lower inner wall system second,Interior bar is set in middle sleeve,The outer spacing ring of interior bar external wall of upper portion third,Interior bar lower end is threadedly coupled with backing plate,Side action sliders outer wall sets oblique top oil cylinder and limit drag hook,The piston rod of oblique top oil cylinder is connected with cavity,Backing plate outer wall is limited a pulling plate,Limit pulling plate is matched with limit drag hook.
Description
Technical field
The utility model is related to injection molds, more particularly to three sleeve pull rod demoulding mechanism of injection mold.
Background technology
After injection mold is to plastic part injection molding, if the front side of plastic part, rear side, left side, right side and upside are all made
There is wall surface, and the outer wall of each wall surface is formed respectively with convex ribs, needs first to mold mold at lower compound plate and core in die sinking, then
It is extracted out to four sides while side action sliders are moved down, is then continued that core and plastic part is driven to move back by lower compound plate
It is dynamic, it avoids the side action sliders at four sides from blocking plastic part demoulding, sufficient space is reserved to bottom knockout to plastic part, finally by plastics
Part ejection device, therefore the opening stroke of the mold is very long, the structure of prior art generally use limit pull rod, by type
Limit pull rod is set on chamber, limit pull rod lower end outer wall is formed with spacing ring, and limit pull rod is matched across backing plate with lower compound plate, by
It is straight-bar structure in limit pull rod, can not stretches, and opening stroke is very long, therefore limit pull rod is also needed according to opening stroke
Be fabricated to it is very one long, occupy die space, need more large-tonnage injection mold, improve the development cost of mold.
Invention content
The purpose of this utility model is to overcome prior art there are the shortcomings that, provide a kind of simple in structure, be suitable for
Mold opening stroke is long, occupies small, the easily manufactured three sleeve pull rod demoulding mechanism of injection mold of die space.
The technical solution of three sleeve pull rod demoulding mechanism of the utility model injection mold is：Including upper compound plate and lower compound plate,
Runner plate is set under upper compound plate, cavity is set under runner plate, inclined guide is set in cavity, backing plate is set on lower compound plate, on backing plate
Core and all around side action sliders at four sides are set, oblique guide hole is provided in side action sliders, oblique guide hole matches with inclined guide
It closes, there is the plastic part of injection molding between the side action sliders at four sides, cavity, core, in the four sides outer wall of plastic part and upper
End is formed respectively with convex ribs, it is characterised in that：Outer sleeve is set in the cavity, and the external wall of upper portion of outer sleeve, which is formed with outside first, to be limited
Position ring, the first outer spacing ring are matched with cavity, and outer sleeve lower inner wall is formed with spacing ring in first, in being arranged in outer sleeve
Sleeve, middle sleeve external wall of upper portion are formed with the second outer spacing ring, and the second outer spacing ring is matched with spacing ring in first, under middle sleeve
Portion's inner wall is formed with spacing ring in second, is arranged interior bar in middle sleeve, and interior bar external wall of upper portion is formed with the outer spacing ring of third, outside third
Spacing ring is matched with spacing ring in second, and interior bar lower end is threadedly coupled with backing plate, and side action sliders outer wall setting is oblique
Oil cylinder and limit drag hook are pushed up, the piston rod of oblique top oil cylinder is connected with cavity, and limit pulling plate is arranged in backing plate outer wall, limits pulling plate
It is matched with limit drag hook.
The utility model discloses a kind of three sleeve pull rod demoulding mechanisms of injection mold, after plastic part injection molding, by
Injection molding machine drives lower compound plate to move backward, and lower compound plate drives backing plate and interior bar to move backward, and mold is first from lower compound plate and core
Die sinking, when the limit pulling plate of compound plate outer wall is in contact with the limit drag hook of side action sliders outer wall instantly, lower compound plate is drawn through limit
Plate and limit drag hook drive side action sliders to move backward, and side action sliders drive plastic part and core to move backward, side core-pulling
Sliding block is displaced outwardly while moving backward along inclined guide, and side action sliders is made gradually to deviate from the convex ribs of plastic part outward,
And side action sliders drive limit drag hook to be disengaged outward with limit pulling plate, and the piston rod of oblique top oil cylinder holds cavity,
Oblique top oil cylinder is mutually fixed with side action sliders, until the piston rod of oblique top oil cylinder is extended to longest distance, oblique top oil cylinder offside
Core-pulling slide block plays position-limiting action, and side action sliders stop movement at this time, and lower compound plate drives backing plate, core, plastic part and interior
Bar continues to move backward, when outside the third of interior bar spacing ring with middle sleeve second in spacing ring be in contact when, interior bar drive in
Sleeve moves backward together, and when the second of middle sleeve the outer spacing ring is in contact with spacing ring in the first of outer sleeve, middle sleeve
It is extended to longest distance with interior bar, interior bar plays position-limiting action, backing plate, lower compound plate, core and modeling to backing plate and lower compound plate at this time
Materials and parts stop movement, and mold at this time has been molded to longest distance, and enough demoulding spaces are reserved to plastic part, can finally be led to
Cross ejecting mechanism make plastic part deviate from core after drop downward into collecting box automatically.Three sleeve pull rod of this programme injection mold demoulds
Mechanism, using three tube-in-tube structures of outer sleeve, middle sleeve and interior bar, three's retraction volume is small when molding, and occupied space is few, die sinking
Shi Sanzhe extends, and can play position-limiting action to longer die sinking distance, simple in structure, easily manufactured, reduces the exploitation of mold
Cost.
Guide post is arranged on the lower compound plate in three sleeve pull rod demoulding mechanism of the utility model injection mold, and guide post is simultaneously
Across backing plate, cavity, runner plate and upper compound plate.There is guide post, guiding role is played to backing plate, cavity.
Description of the drawings
Fig. 1 is the structural schematic diagram of three sleeve pull rod demoulding mechanism of the utility model injection mold；
Fig. 2 is the stereoscopic schematic diagram of three sleeve pull rod demoulding mechanism of the utility model injection mold；
Fig. 3 is outer sleeve, middle sleeve and interior bar contraction state structural schematic diagram.
Specific implementation mode
The utility model is related to a kind of three sleeve pull rod demoulding mechanisms of injection mold, as shown in Fig. 1-Fig. 3, including it is upper multiple
Runner plate 3 is arranged under upper compound plate for plate 1 and lower compound plate 2, and cavity 4 is arranged under runner plate, is arranged inclined guide 5 in cavity, on lower compound plate
Backing plate 6 is set, core 7 and all around side action sliders 8 at four sides are set on backing plate, oblique guide hole 9 is provided in side action sliders,
Oblique guide hole is matched with inclined guide 5, there is the plastic part of injection molding between the side action sliders 8 at four sides, cavity 4, core 7
10, it is formed respectively with convex ribs 11 in the four sides outer wall of plastic part and upper end, it is characterised in that：Outer sleeve is set in the cavity 4
12, the external wall of upper portion of outer sleeve is formed with the first outer spacing ring 13, and the first outer spacing ring is matched with cavity 4, in outer sleeve lower part
Wall is formed with spacing ring 14 in first, and middle sleeve 15 is arranged in outer sleeve, and middle sleeve external wall of upper portion is formed with the second outer spacing ring 16,
Second outer spacing ring is matched with spacing ring in first, and middle sleeve lower inner wall is formed with spacing ring 17 in second, in middle sleeve
Interior bar 18 is set, and interior bar external wall of upper portion is formed with the outer spacing ring 19 of third, and the outer spacing ring of third is matched with spacing ring in second, interior
Bar lower end is threadedly coupled with backing plate 6, and oblique top oil cylinder 20 and limit drag hook 21, oblique top oil is arranged in 8 outer wall of side action sliders
The piston rod of cylinder is connected with cavity 4, limit pulling plate 22 is arranged in 6 outer wall of backing plate, limit pulling plate is matched with limit drag hook.When
After 10 injection molding of plastic part, lower compound plate 2 is driven to move backward by injection molding machine, lower compound plate drives backing plate 6 and interior bar 18 to move back
Dynamic, mold first molds from lower compound plate and core 7, instantly the limit of the limit pulling plate 22 and 8 outer wall of side action sliders of 2 outer wall of compound plate
When position drag hook 21 is in contact, lower compound plate drives side action sliders 8 to move backward through limiting pulling plate 22 and limit drag hook 21, side core-pulling
Sliding block drives plastic part 10 and core 7 to move backward, and side action sliders 8 are moved out while moving backward along inclined guide 5
It is dynamic, so that side action sliders is gradually deviate from the convex ribs 11 of plastic part 10 outward, and side action sliders drive limit drag hook 21 outside
It is disengaged with limit pulling plate 22, and the piston rod of oblique top oil cylinder 20 holds cavity 4, and oblique top oil cylinder is solid with 8 phase of side action sliders
Fixed, until the piston rod of oblique top oil cylinder is extended to longest distance, oblique top oil cylinder 20 plays position-limiting action to side action sliders 8,
Side action sliders stop movement at this time, and lower compound plate 2 drives backing plate 6, core 7, plastic part 10 and interior bar 18 to continue to move backward,
When outside the third of interior bar spacing ring 19 with middle sleeve 15 second in spacing ring 17 be in contact when, interior bar 18 drive middle sleeve 15 1
It rises and moves backward, and when spacing ring 14 is in contact in the second of middle sleeve the outer spacing ring 16 and the first of outer sleeve 12, middle sleeve
15 and the elongation of interior bar 18 to longest distance, interior bar plays position-limiting action to backing plate 6 and lower compound plate 2 at this time, backing plate 6, lower compound plate 2,
Core 7 and plastic part 10 stop movement, and mold at this time has been molded to longest distance, and enough demoulding skies are reserved to plastic part
Between, it is dropped downward into collecting box automatically after so that plastic part 10 is deviate from core 7 by ejecting mechanism.This programme injection mold
Three sleeve pull rod demoulding mechanisms, using three tube-in-tube structures of outer sleeve 12, middle sleeve 15 and interior bar 18, three's liquid shrinkable when molding
Product is small, and occupied space is few, and three extends when die sinking, can play position-limiting action to longer die sinking distance, simple in structure, manufacturer
Just, the development cost of mold is reduced.Guide post 23 is set on the lower compound plate 2, and guide post is also cross backing plate 6, cavity 4, stream
Guidance tape 3 and upper compound plate 1.There is guide post 23, guiding role is played to backing plate 6, cavity 4.
Claims (2)
1. three sleeve pull rod demoulding mechanism of injection mold, including upper compound plate（1）With lower compound plate（2）, runner plate is set under upper compound plate
（3）, cavity is set under runner plate（4）, inclined guide is set in cavity（5）, backing plate is set on lower compound plate（6）, setting type on backing plate
Core（7）The side action sliders at four sides all around（8）, oblique guide hole is provided in side action sliders（9）, oblique guide hole and inclined guide
（5）It matches, the side action sliders at four sides（8）, cavity（4）, core（7）Between have the plastic part of injection molding（10）,
The four sides outer wall of plastic part and upper end are formed respectively with convex ribs（11）, it is characterised in that：The cavity（4）Middle setting outer sleeve
（12）, the external wall of upper portion of outer sleeve is formed with the first outer spacing ring（13）, the first outer spacing ring and cavity（4）It matches, outer sleeve
Lower inner wall is formed with spacing ring in first（14）, middle sleeve is set in outer sleeve（15）, middle sleeve external wall of upper portion is formed with second
Outer spacing ring（16）, the second outer spacing ring matches with spacing ring in first, and middle sleeve lower inner wall is formed with spacing ring in second
（17）, interior bar is set in middle sleeve（18）, interior bar external wall of upper portion is formed with the outer spacing ring of third（19）, the outer spacing ring of third and the
Spacing ring matches in two, interior bar lower end and backing plate（6）It is threadedly coupled, the side action sliders（8）Oblique top oil is arranged in outer wall
Cylinder（20）With limit drag hook（21）, the piston rod and cavity of oblique top oil cylinder（4）It is connected, in backing plate（6）Outer wall setting limit is drawn
Plate（22）, limit pulling plate and matched with limit drag hook.
2. three sleeve pull rod demoulding mechanism of injection mold as described in claim 1, it is characterised in that：The lower compound plate（2）
Upper setting guide post（23）, guide post is also cross backing plate（6）, cavity（4）, runner plate（3）With upper compound plate（1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721876809.6U CN207736645U (en) | 2017-12-28 | 2017-12-28 | Three sleeve pull rod demoulding mechanism of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721876809.6U CN207736645U (en) | 2017-12-28 | 2017-12-28 | Three sleeve pull rod demoulding mechanism of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207736645U true CN207736645U (en) | 2018-08-17 |
Family
ID=63120456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721876809.6U Expired - Fee Related CN207736645U (en) | 2017-12-28 | 2017-12-28 | Three sleeve pull rod demoulding mechanism of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207736645U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111002543A (en) * | 2019-12-25 | 2020-04-14 | 楼文昊 | Long cylindric injection molding mould demoulding structure |
-
2017
- 2017-12-28 CN CN201721876809.6U patent/CN207736645U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111002543A (en) * | 2019-12-25 | 2020-04-14 | 楼文昊 | Long cylindric injection molding mould demoulding structure |
| CN111002543B (en) * | 2019-12-25 | 2020-12-18 | 温州新国余机械科技有限公司 | Long cylindric injection molding mould demoulding structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180817 Termination date: 20211228 |