CN208359395U - Complete cycle takes off back-off structure and injection mold - Google Patents
Complete cycle takes off back-off structure and injection mold Download PDFInfo
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- CN208359395U CN208359395U CN201820699542.6U CN201820699542U CN208359395U CN 208359395 U CN208359395 U CN 208359395U CN 201820699542 U CN201820699542 U CN 201820699542U CN 208359395 U CN208359395 U CN 208359395U
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Abstract
The utility model discloses a kind of complete cycles to take off back-off structure and injection mold, surrounds a ring by the slider core of several inner slides and the oblique top type core of several oblique tops, can form the axially extending multiple back-offs in the complete cycle side of plastic product；By the cooperation for inside contracting the gradient dovetail groove being arranged between core and slider core Yu gradient dovetail, several slider cores can be driven while inside contract by inside contracting core axial movement, to realize that several slider cores first inside contract the function of de- back-off, pass through the cooperation of inclined guide and oblique guide block and sliding shoe, the de- function being buckled to is inside contracted after realizing driving oblique top type core, the final complete cycle for realizing cylindric plastic product inside contracts de- back-off, and core, slider core and oblique top type core are inside contracted axially longer, it can solve the problem of back-off depth is longer, and oblique top can not demould.
Description
Technical field
The present invention relates to injection mold technologies, take off back-off structure and injection mold more particularly to a kind of complete cycle.
Background technique
Injection mold is a kind of tool for producing plasthetics, is made of dynamic model and cover half two parts, in injection moulding
Dynamic model and cover half closure constitute running gate system and type chamber, and dynamic model and cover half separation are to take out plastic products when die sinking.But have
The case where inside border need to take off back-off is often had on the plasthetics of a little special constructions, referring to Fig. 1, which is in
Cylindrical shape closed at one end has annular back-off 1001 close to inner circumferential side at bottom opening, close to top inner circumferential side and top
And longer along plastic product axial direction depth with back-off 1002, the back-off of this cylindrical shape plastic product complete cycle side is extremely special, adopts
It can not be demoulded with oblique top in the prior art, it is a kind of suitable for the de- back-off in plastic product complete cycle side and back-off therefore, it is necessary to design
The longer injection mold of depth.
Summary of the invention
In order to solve the above-mentioned technical problem, the present invention proposes that a kind of complete cycle takes off back-off structure and injection mold, solves circle
The de- back-off of tubular plastic product complete cycle and the back-off longer technical problem of depth.
The technical scheme of the present invention is realized as follows:
A kind of complete cycle de- back-off structure, including inner slide trip assembley therefor and oblique top trip assembley therefor, the inner slide tripping group
Part includes several inner slides and one inside contracts core, and the oblique top trip assembley therefor includes several oblique tops and one-to-one with the oblique top
Several oblique guide blocks；The inner slide includes axially extending slider core and is connected to the slider core bottom and is radially extending
Limit guide block；The oblique top includes oblique top type core, inclined guide and sliding shoe；Several slider cores and it is several it is described tiltedly
Top-type core interphase distribution is at a ring, for forming multiple back-offs of cylindric plastic product inner circumferential side；It is described to inside contract core installation
It is described to inside contract between core and several slider cores through mutually matched gradient dovetail groove obliquely in the ring
It is connected with gradient dovetail, the core bottom that inside contracts is fixed on the backing plate of injection mold；It is formed in the middle part of the oblique guide block
Oblique guide hole, and the oblique guide block is installed in the male template of injection mold, the sliding shoe is fixed in the ejector retainner plate of injection mold
On, the inclined guide upper end is fixedly connected with the oblique top type core, is arranged in the oblique guide hole in the middle part of the inclined guide, described
Inclined guide lower end inward-outward direction is slided other direction stop and is installed on the sliding shoe.
Further, the inner slide trip assembley therefor includes four inner slides, and the oblique top trip assembley therefor includes four
The oblique top type core interphase distribution of a oblique top, the slider core of four inner slides and four oblique tops is at a ring.
A kind of injection mold, die holder, caster, male template and backing plate including sequence setting, further include two pads
Block, ejector retainner plate, bottom plate, the mother module core and male die core that can surround injection molding type chamber, the mother module core are embedded in the middle part of the caster,
The male die core is embedded in the middle part of the male template, and two cushion blocks are installed on the upside of the bottom plate, and the ejector retainner plate is set to
On the upside of the bottom plate and it is located between two cushion blocks, the backing plate is installed on two cushion blocks, and the male template can
The relatively described backing plate flicks set distance, further includes complete cycle taking off back-off structure, the inner slide is slidably mounted in inward-outward direction
On the male die core, the core bottom that inside contracts is fixed on the backing plate, and the oblique guide block is installed in the male template, described
Sliding shoe is fixed on the ejector retainner plate, and the via hole that core is inside contracted described in evacuation is formed on the male die core and the male template,
The via hole of evacuation inclined guide is formed on the male die core, the male template and the backing plate.
Further, it is formed with the accommodating slider core, the oblique top type core in the middle part of the male die core and described inside contracts
The through-hole of core bottom end is formed in the through-hole and is placed in the one-to-one supporting table of oblique top type core, the oblique top type core
In the supporting table, the inclined guide passes through the supporting table and is fixedly connected with the oblique top type core.
Further, the core that inside contracts includes core print, stem and core disk, between the core print and several slider cores
It is connected by mutually matched gradient dovetail groove obliquely with gradient dovetail, the core disk is embedded in the backing plate,
The stem is across the male die core and the male template and is removably fixed on the core print and the core disk, the core
The guide groove for avoiding the inclined guide is formed on disk.
Further, the male die core bottom is formed with one-to-one with the limit guide block and leads in inward-outward direction
To limit sliding chutes, the limit sliding chutes bottom opening closed by the male template, the limit guide block inward-outward direction sliding
In the limit sliding chutes.
Further, the male template can the relatively described backing plate flick the structure of set distance are as follows: the backing plate with it is described
It is connected between caster by several deductions, several guide pillar springs is equipped between the male template and the ejector retainner plate.
Further, inclined guide lower end inward-outward direction slides the knot that other direction stop are installed on the sliding shoe
Structure is: the inclined guide lower end is connected with fixture block, and the sliding shoe top surface is equipped with slot and card slot, and the inclined guide lower end is inserted
Enter in the slot, and be caught in the fixture block sliding in the card slot, makes the inclined guide lower end in the slot along interior
Outside direction slides other direction stop.
The beneficial effects of the present invention are: the present invention, which provides a kind of complete cycle, takes off back-off structure and injection mold, complete cycle it is de- fall
In buckle structure, a ring is surrounded by the slider core of several inner slides and the oblique top type core of several oblique tops, plastic can be formed
Multiple back-offs of the complete cycle side of product drive several slider cores to inside contract, it can be achieved that several slider cores are de- by inside contracting core
Button can drive the de- back-off of oblique top type core, to realize cylindric modeling by the cooperation of inclined guide and oblique guide block and sliding shoe
The complete cycle of part product de- back-off, and inside contract core, slider core and oblique top type core axially longer, can solve back-off depth compared with
The problem of length, oblique top can not demould.In die sinking, male template first flicks a distance to Z-direction (die sinking direction) with respect to backing plate,
Ejector retainner plate follows male template to the mobile same distance of Z-direction, is fixed on backing plate due to inside contracting core, male template is flicked to Z-direction
When a distance, inside contracting core can drive slider core to inside contract a distance by gradient dovetail groove or gradient dovetail, to make
Multiple inner slide abjection back-offs, and oblique top type core is connected on ejector retainner plate by inclined guide, ejector retainner plate is moved together with male template,
At this point, oblique top type core not will do it and inside contract de- back-off；After inner sliding block under-cut releasing, ejector retainner plate drives oblique top novel by inclined guide
A distance is continued to move to Z-direction, other direction stop are slided due to inclined guide lower end inward-outward direction and are installed on sliding shoe,
Sliding shoe is fixed on ejector retainner plate, and therefore, oblique top type core can inside contract a distance with respect to male die core and male template, so that abjection is fallen
Button is finally completed the complete cycle de- back-off of cylindric plastic product.
Detailed description of the invention
Fig. 1 is a kind of plastic product cross section view of the present invention；
Fig. 2 is complete cycle de- back-off structure top view in the present invention；
Fig. 3 be in Fig. 2 A-A to cross section view；
Fig. 4 is B-B direction cross section view in Fig. 2；
Fig. 5 is complete cycle de- back-off structure three-dimensional view in invention；
Fig. 6 is that core and multiple inner slides cooperation schematic diagram are inside contracted in invention；
Fig. 7 is injection mold three-dimensional view in the present invention；
Fig. 8 is injection mold cross section view in the present invention；
Fig. 9 is that male die core and complete cycle de- back-off structure cooperate schematic diagram in the present invention；
Figure 10 is that male die core and inner slide cooperate schematic diagram in the present invention；
Figure 11 is male die core structural schematic diagram in the present invention.
Specific embodiment
It is more obvious and easy to understand to enable the invention to, a specific embodiment of the invention is done with reference to the accompanying drawing detailed
Explanation.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a kind of complete cycle takes off back-off structure, including inner slide trip assembley therefor and tiltedly
Trip assembley therefor is pushed up, the inner slide trip assembley therefor includes that several inner slides 1 and one inside contract core 2, and the oblique top trip assembley therefor includes
Several oblique tops 3 and with the one-to-one several oblique guide blocks 4 of the oblique top；The inner slide includes axially extending slider core
101 and the slider core bottom is connected in the limit guide block 102 radially extended；The oblique top include oblique top type core 301,
Inclined guide 302 and sliding shoe 303；Several slider cores and several oblique top type core interphase distributions are used at a ring
Form multiple back-offs of cylindric plastic product inner circumferential side；The core that inside contracts is installed in the ring, if it is described inside contract core with
It does and is connected by mutually matched gradient dovetail groove 5 obliquely with gradient dovetail 6 between the slider core, it is described interior
Contracting core bottom is fixed on the backing plate of injection mold；Oblique guide hole 401, and the oblique guide block installation are formed in the middle part of the oblique guide block
In in the male template of injection mold, the sliding shoe is fixed on the ejector retainner plate of injection mold, the inclined guide upper end with it is described
Oblique top type core is fixedly connected, and is arranged in the oblique guide hole in the middle part of the inclined guide, the sliding of inclined guide lower end inward-outward direction
Other direction stop are installed on the sliding shoe.
In above structure, a ring is surrounded by the slider core of several inner slides and the oblique top type core of several oblique tops, it can
The axially extending multiple back-offs in complete cycle side to form plastic product, for example, close to 100 bottom of plastic product shown in Fig. 1
The annular back-off 1001 of opening inner circumferential side, the back-off 1002 close to 100 top inner circumferential side of plastic product and top, by inside contracting
The cooperation of the gradient dovetail groove and gradient dovetail that are arranged between core and slider core, several cunnings can be driven by inside contracting core axial movement
Block type core inside contracts simultaneously, to realize that several slider cores first inside contract the function of de- back-off, passes through inclined guide and oblique guide block and cunning
The cooperation of motion block inside contracts the de- function being buckled to, the final complete cycle for realizing cylindric plastic product after realizing driving oblique top type core
Inside contract de- back-off, and inside contract core, slider core and oblique top type core axially longer, it is longer to can solve back-off depth, oblique top without
The problem of method demoulds.
Complete cycle of the invention takes off the working principle of back-off structure are as follows:
In die sinking, male template first flicks a distance to Z-direction (die sinking direction) with respect to backing plate, and ejector retainner plate follows male model
Plate is fixed on backing plate due to inside contracting core to the mobile same distance of Z-direction, when male template flicks a distance to Z-direction, inside contracts
Core can drive slider core to inside contract a distance by gradient dovetail groove or gradient dovetail, so that multiple inner slide abjections be made to fall
Button, and oblique top type core is connected on ejector retainner plate by inclined guide, ejector retainner plate is moved together with male template, at this point, oblique top type core is not
It will do it and inside contract de- back-off；After inner sliding block under-cut releasing, ejector retainner plate drives that oblique top is novel continues to move to Z-direction by inclined guide
A distance is slided other direction stop due to inclined guide lower end inward-outward direction and is installed on sliding shoe, and sliding shoe is fixed in top
On needle plate, therefore, oblique top type core can inside contract a distance with respect to male die core and male template, to deviate from back-off, be finally completed circle
The de- back-off of the complete cycle of tubular plastic product.
Preferably, the inner slide trip assembley therefor includes four inner slides, and the oblique top trip assembley therefor includes four
The oblique top type core interphase distribution of the oblique top, the slider core of four inner slides and four oblique tops is at a ring.Make
For a kind of preferred embodiment, the present invention uses the form of four inner slides and the cooperation of four oblique tops, but not limited to this, it is also possible to
The form of other numbers.The core that inside contracts for driving inner slide is that the gradient dovetail groove matched with four inner slides or oblique is made at four sides
Dovetail is spent, as a kind of preferred embodiment mode, referring to Fig. 6, two gradient dovetail grooves are formed in two adjacent inner slides
Slider core on, formed and inside contracted on adjacent two faces of core with the gradient dovetail of the two gradient dovetail grooves cooperation, inside contracted
Other two adjacent face of core is formed there are two gradient dovetail groove, is then formed with the two gradient dovetail grooves cooperation gradient dovetail
In the slider core of other two adjacent inner slide.
As shown in Figure 7, Figure 8 and Figure 9, a kind of injection mold, die holder, caster 7, male model including sequence setting
Plate 8 and backing plate 9 further include two cushion blocks 10, ejector retainner plate 11, bottom plate 12, the mother module core 13 and male die core that can surround injection molding type chamber
14, the mother module core is embedded in the middle part of the caster, and the male die core is embedded in the middle part of the male template, two cushion block installations
On the upside of the bottom plate, the ejector retainner plate is set on the upside of the bottom plate and is located between two cushion blocks, the backing plate peace
Loaded on two cushion blocks, the male template can the relatively described backing plate flick set distance, it is die holder, caster 7, public
Template 8 and backing plate 9 are set as the prior art, and details are not described herein, and as innovation of the invention, injection mold further includes
Complete cycle takes off back-off structure, and referring to fig. 2, Fig. 3, Fig. 4 and Fig. 5, it includes that inner slide trip assembley therefor and oblique top are de- that complete cycle, which takes off back-off structure,
Buckle assembly, the inner slide trip assembley therefor include that several inner slides 1 and one inside contract core 2, and the oblique top trip assembley therefor includes several
Oblique top 3 and with the one-to-one several oblique guide blocks 4 of the oblique top；The inner slide includes axially extending 101 He of slider core
The slider core bottom is connected in the limit guide block 102 radially extended；The oblique top includes oblique top type core 301, tiltedly leads
Bar 302 and sliding shoe 303；Several slider cores and several oblique top type core interphase distributions are at a ring, for forming
Multiple back-offs of cylindric plastic product inner circumferential side；The core that inside contracts is installed in the ring, described to inside contract core and several institutes
It states and is connected by mutually matched gradient dovetail groove 5 obliquely with gradient dovetail 6 between slider core, it is described to inside contract core
Bottom is fixed on backing plate；It is formed with oblique guide hole 401 in the middle part of the oblique guide block, and the oblique guide block is installed in male template, institute
It states sliding shoe to be fixed on ejector retainner plate, the inclined guide upper end is fixedly connected with the oblique top type core, is worn in the middle part of the inclined guide
In the oblique guide hole, inclined guide lower end inward-outward direction is slided other direction stop and is installed on the sliding shoe；Institute
It states to be formed in male die core and the male template and inside contracts the via hole of core described in evacuation, the male die core, the male template and described
The via hole of evacuation inclined guide is formed on backing plate.
Injection mold of the present invention applies de- back-off structure of above-mentioned complete cycle, solves the de- back-off of cylindric plastic product complete cycle
And the back-off longer technical problem of depth.
Preferably, referring to Figure 11, the male die core middle part is formed with the accommodating slider core, the oblique top type core and institute
The through-hole 1401 for inside contracting core bottom end is stated, is formed in the through-hole and the one-to-one supporting table 1402 of the oblique top type core, institute
It states oblique top type core to be placed in the supporting table, the inclined guide passes through the supporting table and is fixedly connected with the oblique top type core.This
Sample, slider core, oblique top type core and inside contracts core bottom end and surrounds a ring, and is limited in the through-hole on male die core, passes through branch
Support platform can play the function of support oblique top type core, and inclined guide passes through supporting table, can limit inclined guide and move in other directions,
Keep inclined guide mobile in direction obliquely.
Preferably, referring to Fig. 6 and Fig. 8, the core that inside contracts includes core print 201, stem 202 and core disk 203, the core print with
It is connected by mutually matched gradient dovetail groove obliquely with gradient dovetail between several slider cores, the core
Disk is embedded in the backing plate, the stem pass through the male die core and the male template and be removably fixed on the core print and
Between the core disk, the guide groove for avoiding the inclined guide is formed on the core disk.It is arranged to removably by the way that core will be inside contracted
Three parts (core print, stem and core tail) have reached convenient for production, installation and maintenance purpose.Pass through matching for guide groove and inclined guide
It closes, inclined guide can further be limited.
Preferably, referring to Figure 10, the male die core bottom be formed with it is one-to-one with the limit guide block and including
The limit sliding chutes 1403 of outside direction guiding, the limit sliding chutes bottom opening are closed by the male template, the limit guide block
Inward-outward direction sliding is set in the limit sliding chutes.In this way, passing through the cooperation of limit guide block and limit sliding chutes, can internally slide
Block carries out inward-outward direction guiding, slides it in inward-outward direction, that is, can ensure that inner slide moves radially tripping.
Preferably, referring to Fig. 7, the male template can the relatively described backing plate flick the structure of set distance are as follows: the backing plate
It is connected between the caster by several deductions 15, several guide post bullets is equipped between the male template and the ejector retainner plate
Spring.In this way, by the cooperation of deduction and guide pillar spring, may be implemented male template can the relatively described backing plate flick the function of set distance
Energy.
Preferably, referring to Fig. 3 and Fig. 5, inclined guide lower end inward-outward direction slide other direction stop be installed on it is described
Structure on sliding shoe is: the inclined guide lower end is connected with fixture block 304, and the sliding shoe top surface is equipped with slot 3031 and card
Slot 3032, the inclined guide lower end are inserted into the slot, and are caught in the fixture block sliding in the card slot, are made described oblique
Lower end of the guide rod slides other direction stop along inward-outward direction in the slot.In this way, passing through the cooperation of card slot and fixture block, slot
With the cooperation of inclined guide, inclined guide may be implemented and slided during ejection pitched roof type core in inward-outward direction, realize oblique top tripping
Function.
Above embodiments are referring to attached drawing, to a preferred embodiment of the present invention will be described in detail.Those skilled in the art
Member by above-described embodiment carry out various forms on modification or change, but without departing substantially from essence of the invention in the case where, all
It falls within the scope and spirit of the invention.
Claims (8)
1. a kind of complete cycle takes off back-off structure, it is characterised in that: including inner slide trip assembley therefor and oblique top trip assembley therefor, the interior cunning
Block trip assembley therefor includes that several inner slides (1) and one inside contract core (2), the oblique top trip assembley therefor include several oblique tops (3) and with
The one-to-one several oblique guide blocks (4) of the oblique top；The inner slide includes axially extending slider core (101) and is connected to
The slider core bottom is in the limit guide block (102) radially extended；The oblique top includes oblique top type core (301), inclined guide
(302) and sliding shoe (303)；Several slider cores and several oblique top type core interphase distributions at a ring, at
Multiple back-offs of type cylindrical shape plastic product inner circumferential side；The core that inside contracts is installed in the ring, it is described inside contract core with it is several
It is connected by mutually matched gradient dovetail groove (5) obliquely with gradient dovetail (6) between the slider core, it is described
Core bottom is inside contracted to be fixed on the backing plate of injection mold；It is formed with oblique guide hole (401) in the middle part of the oblique guide block, and the oblique guide block
Be installed in the male template of injection mold, the sliding shoe is fixed on the ejector retainner plate of injection mold, the inclined guide upper end with
The oblique top type core is fixedly connected, and is arranged in the oblique guide hole in the middle part of the inclined guide, inclined guide lower end inward-outward direction
Other direction stop are slided to be installed on the sliding shoe.
2. complete cycle according to claim 1 takes off back-off structure, it is characterised in that: the inner slide trip assembley therefor includes four
The inner slide, the oblique top trip assembley therefor include four oblique tops, the slider core of four inner slides and four institutes
The oblique top type core interphase distribution of oblique top is stated into a ring.
3. a kind of injection mold, die holder, caster (7), male template (8) and backing plate (9) including sequence setting, are also wrapped
Include two cushion blocks (10), ejector retainner plate (11), bottom plate (12), the mother module core (13) and male die core (14) that injection molding type chamber can be surrounded, institute
It states mother module core to be embedded in the middle part of the caster, the male die core is embedded in the middle part of the male template, and two cushion blocks are installed on institute
It states on the upside of bottom plate, the ejector retainner plate is set on the upside of the bottom plate and is located between two cushion blocks, and the backing plate is installed on
On two cushion blocks, the male template can the relatively described backing plate flick set distance, it is characterised in that: further include claim
Complete cycle described in 1 or 2 takes off back-off structure, and the inner slide is slidably mounted on the male die core in inward-outward direction, described to inside contract
Core bottom is fixed on the backing plate, and the oblique guide block is installed in the male template, and the sliding shoe is fixed in the thimble
On plate, the via hole that core is inside contracted described in evacuation, the male die core, the male template are formed on the male die core and the male template
And the via hole of evacuation inclined guide is formed on the backing plate.
4. injection mold according to claim 3, it is characterised in that: be formed with the accommodating sliding block in the middle part of the male die core
Type core, the oblique top type core and the through-hole (1401) for inside contracting core bottom end are formed with and the oblique top type core in the through-hole
One-to-one supporting table (1402), the oblique top type core are placed in the supporting table, and the inclined guide passes through the supporting table
It is fixedly connected with the oblique top type core.
5. injection mold according to claim 4, it is characterised in that: the core that inside contracts includes core print (201), stem
(202) and core disk (203), pass through mutually matched gradient dovetail obliquely between the core print and several slider cores
Slot is connected with gradient dovetail, and the core disk is embedded in the backing plate, and the stem passes through the male die core and the public affairs
Template is simultaneously removably fixed between the core print and the core disk, and the guide groove for avoiding the inclined guide is formed on the core disk
(2031)。
6. injection mold according to claim 4, it is characterised in that: the male die core bottom is formed with leads with the limit
The limit sliding chutes (1403) one-to-one and in inward-outward direction guiding to block, the limit sliding chutes bottom opening is by the male model
Plate closing, the limit guide block inward-outward direction sliding are set in the limit sliding chutes.
7. injection mold according to claim 3, it is characterised in that: the male template can the relatively described backing plate flick setting
The structure of distance are as follows: it is connected between the backing plate and the caster by several deductions (15), the male template and the top
Several guide pillar springs are equipped between needle plate.
8. injection mold according to claim 3, it is characterised in that: inclined guide lower end inward-outward direction slides its other party
The structure being installed on the sliding shoe to stop is: the inclined guide lower end is connected with fixture block (304), the sliding shoe top surface
It is equipped with slot (3031) and card slot (3032), the inclined guide lower end is inserted into the slot, and makes the fixture block sliding card
Enter in the card slot, the inclined guide lower end is made to slide other direction stop along inward-outward direction in the slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820699542.6U CN208359395U (en) | 2018-05-11 | 2018-05-11 | Complete cycle takes off back-off structure and injection mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820699542.6U CN208359395U (en) | 2018-05-11 | 2018-05-11 | Complete cycle takes off back-off structure and injection mold |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407233A (en) * | 2018-05-11 | 2018-08-17 | 昆山金莓电子有限公司 | The de- back-off structure of week and injection mold |
| CN112829222A (en) * | 2020-12-31 | 2021-05-25 | 昆山和全兴汽车配件有限公司 | Injection molding mold for engine air inlet pipe pipeline |
| CN112848106A (en) * | 2020-12-31 | 2021-05-28 | 昆山和全兴汽车配件有限公司 | Injection molding mold for engine air inlet pipe connecting piece |
-
2018
- 2018-05-11 CN CN201820699542.6U patent/CN208359395U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407233A (en) * | 2018-05-11 | 2018-08-17 | 昆山金莓电子有限公司 | The de- back-off structure of week and injection mold |
| CN112829222A (en) * | 2020-12-31 | 2021-05-25 | 昆山和全兴汽车配件有限公司 | Injection molding mold for engine air inlet pipe pipeline |
| CN112848106A (en) * | 2020-12-31 | 2021-05-28 | 昆山和全兴汽车配件有限公司 | Injection molding mold for engine air inlet pipe connecting piece |
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