CN108773029A - It is a kind of prevent fixed die insert crack sliding block location structure, a kind of mould structure - Google Patents
It is a kind of prevent fixed die insert crack sliding block location structure, a kind of mould structure Download PDFInfo
- Publication number
- CN108773029A CN108773029A CN201810674533.6A CN201810674533A CN108773029A CN 108773029 A CN108773029 A CN 108773029A CN 201810674533 A CN201810674533 A CN 201810674533A CN 108773029 A CN108773029 A CN 108773029A
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- CN
- China
- Prior art keywords
- sliding block
- fixed die
- die insert
- location structure
- block location
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005336 cracking Methods 0.000 claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 238000001746 injection moulding Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The present invention disclose it is a kind of prevent fixed die insert crack sliding block location structure, a kind of mould structure, be related to technical field of mold, the clamp force to solve existing injection molding machine acts directly on important spare part and influences the technical issues of product normally produces.In the sliding block location structure of the present invention for preventing fixed die insert from cracking, sliding block location structure is mounted on the edge of fixed die insert, and is arranged at the envelope charge level of corresponding fixed die insert;In use, core pulling is locked, sliding block location structure bumps against on fixed die insert in advance, to alleviate the stress of envelope charge level.Due to being provided with sliding block location structure, when core pulling is locked, sliding block location structure can bump against on fixed die insert in advance, to make the stress of envelope charge level substantially reduce, and then effectively avoid the damage of the cracking and other important components of fixed die insert, ensure the service life of mold, the normal production of product.
Description
Technical field
The present invention relates to technical field of mold, more particularly to a kind of sliding block location structure for preventing fixed die insert from cracking, one
Kind mould structure.
Background technology
With the development of car light technology, the requirement to mould strength and die life is also improving, some special core pulling knots
Structure can impact mold body.
Present inventor has found that, since core pulling goes locking by injection molding machine, the clamp force of that injection molding machine can be by core pulling
The envelope charge level of front end passes to power on other important spare parts;With the production of product, mould strength constantly declines, and eventually leads to
The damage of important component, affects the normal production of product.
Therefore, how to provide it is a kind of prevent fixed die insert crack sliding block location structure, a kind of mould structure, can be effective
The damage of important spare part is avoided, and ensures the normal production of product, it has also become the technology of those skilled in the art's urgent need to resolve
Problem.
Invention content
The purpose of the present invention is to provide it is a kind of prevent fixed die insert crack sliding block location structure, a kind of mould structure,
Clamp force to solve existing injection molding machine acts directly on important spare part and influences the technical issues of product normally produces.
The present invention provides a kind of sliding block location structure for preventing fixed die insert from cracking, and the sliding block location structure is mounted on fixed
On the edge of mould insert, and it is arranged at the envelope charge level of the corresponding fixed die insert;In use, core pulling is locked, the sliding block positioning
Structure is bumped against in advance on the fixed die insert, to alleviate the stress of the envelope charge level.
Wherein, in the sliding block location structure of the present invention for preventing fixed die insert from cracking, the sliding block location structure is adopted
Use rectangular parallelepiped structure.
Optionally, in the sliding block location structure of the present invention for preventing fixed die insert from cracking, the sliding block location structure
Using prismatoid structure.
Specifically, in the sliding block location structure of the present invention for preventing fixed die insert from cracking, the sliding block location structure
The central area of the corresponding core pulling length direction, and be arranged with envelope charge level interval.
Further, in the sliding block location structure of the present invention for preventing fixed die insert from cracking, the sliding block positioning knot
Structure is removably mounted on the fixed die insert.
Further, in the sliding block location structure of the present invention for preventing fixed die insert from cracking, the sliding block positioning
Structure is detachably connected by way of tenon structure with the fixed die insert.
Optionally, in the sliding block location structure of the present invention for preventing fixed die insert from cracking, the sliding block location structure
It is detachably connected by connector and the fixed die insert.
Still further, in the sliding block location structure of the present invention for preventing fixed die insert from cracking, the sliding block positioning
Structure is detachably connected by bolt and the fixed die insert.
Compared with the existing technology, the sliding block location structure of the present invention for preventing fixed die insert from cracking has following excellent
Gesture:
In the sliding block location structure provided by the invention for preventing fixed die insert from cracking, sliding block location structure is inlayed mounted on cover half
On the edge of block, and it is arranged at the envelope charge level of corresponding fixed die insert;In use, core pulling is locked, sliding block location structure bumps against in advance
On fixed die insert, to alleviate the stress of envelope charge level.From this analysis, due to being provided with sliding block location structure, core-pulling lock
When tight, sliding block location structure can bump against on fixed die insert in advance, to make the stress of envelope charge level substantially reduce, and then effectively keep away
The damage for exempting from the cracking and other important components of fixed die insert ensures the service life of mold, the normal production of product.
The present invention also provides a kind of mould structures, including:Fixed die insert, and it is as above on the fixed die insert
State the sliding block location structure that any one of them prevents fixed die insert from cracking.
Specifically, in mould structure of the present invention, the fixed die insert has envelope charge level;Core pulling passes through the sliding block
Location structure is connect with the fixed die insert, and with the envelope charge level is corresponding contacts.
The mould structure is had compared with the existing technology with the above-mentioned sliding block location structure for preventing fixed die insert from cracking
Advantage it is identical, details are not described herein.
It is provided by the invention it is a kind of prevent fixed die insert crack sliding block location structure, a kind of mould structure, mainly have
Following advantage:
One, it is provided with sliding block location structure, can prevent fixed die insert from cracking, improves die life;
Two, sliding block location structure is detachably installed, and is conveniently replaceable;
Three, production efficiency is effectively increased.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of mould structure provided in an embodiment of the present invention;
Fig. 2 is the structural schematic diagram of the sliding block location structure provided in an embodiment of the present invention for preventing fixed die insert from cracking;
Fig. 3 is the structural schematic diagram of the sliding block location structure provided in an embodiment of the present invention for preventing fixed die insert from cracking.
In figure:100- sliding block location structures;200- fixed die inserts;201- seals charge level;300- core pullings;4- coupling mechanism forces;
5- impingement areas.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated system or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can
Can also be electrical connection to be mechanical connection;It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the connection inside two elements.For the ordinary skill in the art, it can understand that above-mentioned term exists with concrete condition
Concrete meaning in the present invention.
Fig. 1 is the structural schematic diagram of mould structure provided in an embodiment of the present invention;Fig. 2 is provided in an embodiment of the present invention anti-
The only structural schematic diagram of the sliding block location structure of fixed die insert cracking;Fig. 3 prevents fixed die insert to be provided in an embodiment of the present invention
The structural schematic diagram of the sliding block location structure of cracking.
As shown in Figure 1-Figure 3, the embodiment of the present invention provides a kind of sliding block location structure for preventing fixed die insert from cracking, sliding
Block location structure 100 is mounted on the edge of fixed die insert 200, and is arranged at the envelope charge level 201 of corresponding fixed die insert 200;Make
Used time, core pulling 300 are locked, which bumps against in advance on fixed die insert 200, with alleviate envelope charge level 201 by
Power.
Compared with the existing technology, described in the embodiment of the present invention prevent fixed die insert crack sliding block location structure have with
Lower advantage:
It is as shown in Figure 1-Figure 3, sliding in the sliding block location structure provided in an embodiment of the present invention for preventing fixed die insert from cracking
Block location structure 100 is mounted on the edge of fixed die insert 200, and is arranged at the envelope charge level 201 of corresponding fixed die insert 200;Make
Used time, core pulling 300 are locked, and sliding block location structure 100 is bumped against in advance on fixed die insert 200, to alleviate the stress of envelope charge level 201.
From this analysis, due to being provided with sliding block location structure 100, when core pulling 300 is locked, sliding block location structure 100 can
It bumps against on fixed die insert 200 in advance, to make the stress of envelope charge level 201 substantially reduce, and then effectively avoids fixed die insert 200
The damage of cracking and other important components, ensures the service life of mold, the normal production of product.
Wherein, as shown in Fig. 2, when actual production manufactures, the cunning provided in an embodiment of the present invention for preventing fixed die insert from cracking
In block location structure, rectangular parallelepiped structure may be used in above-mentioned sliding block location structure 100.
Optionally, cube structure may be used in above-mentioned sliding block location structure 100.
Alternatively, provided in an embodiment of the present invention to prevent fixed die insert from cracking as shown in figure 3, when actual production manufactures
Sliding block location structure in, prismatoid structure may be used in above-mentioned sliding block location structure 100.
Optionally, truncated rectangular pyramids structure may be used in above-mentioned sliding block location structure 100.
Specifically, as shown in Figure 1, in the sliding block location structure provided in an embodiment of the present invention for preventing fixed die insert from cracking,
Above-mentioned sliding block location structure 100 can correspond to the central area of 300 length direction of core pulling, and be arranged with envelope charge level 201 interval, from
And when the locking of core pulling 300, sliding block location structure 100 can be bumped against in advance on fixed die insert 200, so that the stress of envelope charge level 201
It substantially reduces, and then effectively avoids the damage of the cracking and other important components of fixed die insert 200, ensure the service life of mold,
The normal production of product.
Further, provided in an embodiment of the present invention to prevent fixed die insert for the ease of the replacement of sliding block location structure 100
In the sliding block location structure of cracking, above-mentioned sliding block location structure 100 may be used dismountable mode and be mounted on fixed die insert 200
On.
Further, in the sliding block location structure provided in an embodiment of the present invention for preventing fixed die insert from cracking, above-mentioned cunning
Block location structure 100 can be detachably connected by way of tenon structure with fixed die insert 200, consequently facilitating sliding block positioning knot
The replacement of structure 100, and overall structure is stablized.
Optionally, in the sliding block location structure provided in an embodiment of the present invention for preventing fixed die insert from cracking, above-mentioned sliding block is fixed
Bit architecture 100 can be detachably connected by connector and fixed die insert 200, consequently facilitating the replacement of sliding block location structure 100.
Still further, in order to effectively reduce cost, the sliding block provided in an embodiment of the present invention for preventing fixed die insert from cracking
In location structure, bolt may be used in above-mentioned connector namely sliding block location structure 100 can be by bolt and fixed die insert
200 are detachably connected, consequently facilitating the replacement of sliding block location structure 100.
As shown in Figure 1, the embodiment of the present invention also provides a kind of mould structure, including:Fixed die insert 200, and be mounted on
The sliding block location structure 100 as described in any one of the above embodiments for preventing fixed die insert from cracking on the fixed die insert 200.
Specifically, as shown in Figure 1, in mould structure provided in an embodiment of the present invention, there is above-mentioned fixed die insert 200 envelope to expect
Face 201;Core pulling 300 is connect by sliding block location structure 100 with fixed die insert 200, and is contacted with the envelope correspondence of charge level 201.
In use, core pulling 300 is locked, sliding block location structure 100 bumps against mould structure provided in an embodiment of the present invention in advance
On fixed die insert 200, to alleviate the stress of envelope charge level 201.From this analysis, due to being provided with sliding block location structure 100, because
This core pulling 300 lock when, sliding block location structure 100 can in advance bump against on fixed die insert 200, to make envelope charge level 201 by
Power substantially reduces, and then effectively avoids the damage of the cracking and other important components of fixed die insert 200, ensures the longevity of mold
Life, the normal production of product.
Wherein, as shown in Fig. 2, when actual production manufactures, in mold provided in an embodiment of the present invention, above-mentioned sliding block positioning knot
Rectangular parallelepiped structure may be used in structure 100.
Optionally, cube structure may be used in above-mentioned sliding block location structure 100.
Alternatively, as shown in figure 3, when actual production manufactures, in mold provided in an embodiment of the present invention, above-mentioned sliding block is fixed
Prismatoid structure may be used in bit architecture 100.
Optionally, truncated rectangular pyramids structure may be used in above-mentioned sliding block location structure 100.
Specifically, as shown in Figure 1, in mold provided in an embodiment of the present invention, above-mentioned sliding block location structure 100 can correspond to
The central area of 300 length direction of core pulling, and be arranged with envelope charge level 201 interval, when being locked to core pulling 300, sliding block positioning knot
Structure 100 can in advance bump against on fixed die insert 200, so that the stress of envelope charge level 201 substantially reduces, and then effectively cover half be avoided to inlay
The damage of the cracking of block 200 and other important components ensures the service life of mold, the normal production of product.
Further, above-mentioned in mold provided in an embodiment of the present invention for the ease of the replacement of sliding block location structure 100
Dismountable mode may be used on fixed die insert 200 in sliding block location structure 100.
Further, in mold provided in an embodiment of the present invention, above-mentioned sliding block location structure 100 can pass through mortise and tenon knot
The mode of structure is detachably connected with fixed die insert 200, consequently facilitating the replacement of sliding block location structure 100, and overall structure is stablized.
Optionally, in mold provided in an embodiment of the present invention, above-mentioned sliding block location structure 100 can by connector with it is fixed
Mould insert 200 is detachably connected, consequently facilitating the replacement of sliding block location structure 100.
Still further, in order to effectively reduce cost, in mold provided in an embodiment of the present invention, above-mentioned connector can be adopted
It can be detachably connected by bolt and fixed die insert 200 with bolt namely sliding block location structure 100, consequently facilitating sliding block is fixed
The replacement of bit architecture 100.
Herein it should be added that, as shown in Figure 1, the direction of dotted arrow meaning is coupling mechanism force 4;Solid arrow institute
The face of finger is impingement area 5.When core pulling 300 is locked, sliding block location structure 100 can bump against fixed die insert in advance by impingement area 5
On 200, to which the coupling mechanism force 4 for making envelope charge level 201 be subject to substantially reduces, and then the cracking of fixed die insert 200 is effectively avoided, and
The damage of other important components ensures the service life of mold, the normal production of product.
A kind of sliding block location structure for preventing fixed die insert from cracking provided in an embodiment of the present invention, a kind of mould structure, it is main
There is following advantage:
One, it is provided with sliding block location structure, can prevent fixed die insert from cracking, improves die life;
Two, sliding block location structure is detachably installed, and is conveniently replaceable;
Three, production efficiency is effectively increased.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of sliding block location structure for preventing fixed die insert from cracking, which is characterized in that it is fixed that the sliding block location structure is mounted on
On the edge of mould insert, and it is arranged at the envelope charge level of the corresponding fixed die insert;
In use, core pulling is locked, the sliding block location structure is bumped against in advance on the fixed die insert, to alleviate the envelope charge level
Stress.
2. the sliding block location structure according to claim 1 for preventing fixed die insert from cracking, which is characterized in that the sliding block is fixed
Bit architecture uses rectangular parallelepiped structure.
3. the sliding block location structure according to claim 1 for preventing fixed die insert from cracking, which is characterized in that the sliding block is fixed
Bit architecture uses prismatoid structure.
4. the sliding block location structure according to any one of claim 1-3 for preventing fixed die insert from cracking, feature exist
In the sliding block location structure corresponds to the central area of the core pulling length direction, and is arranged with envelope charge level interval.
5. the sliding block location structure according to claim 4 for preventing fixed die insert from cracking, which is characterized in that the sliding block is fixed
Bit architecture is removably mounted on the fixed die insert.
6. the sliding block location structure according to claim 5 for preventing fixed die insert from cracking, which is characterized in that the sliding block is fixed
Bit architecture is detachably connected by way of tenon structure with the fixed die insert.
7. the sliding block location structure according to claim 5 for preventing fixed die insert from cracking, which is characterized in that the sliding block is fixed
Bit architecture is detachably connected by connector and the fixed die insert.
8. the sliding block location structure according to claim 7 for preventing fixed die insert from cracking, which is characterized in that the sliding block is fixed
Bit architecture is detachably connected by bolt and the fixed die insert.
9. a kind of mould structure, which is characterized in that including:Fixed die insert, and on the fixed die insert as above-mentioned
The sliding block location structure that fixed die insert cracks is prevented described in any one of claim 1-8.
10. mould structure according to claim 9, which is characterized in that the fixed die insert has envelope charge level;
Core pulling is connect by the sliding block location structure with the fixed die insert, and with the envelope charge level is corresponding contacts.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810674533.6A CN108773029A (en) | 2018-06-26 | 2018-06-26 | It is a kind of prevent fixed die insert crack sliding block location structure, a kind of mould structure |
Applications Claiming Priority (1)
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CN201810674533.6A CN108773029A (en) | 2018-06-26 | 2018-06-26 | It is a kind of prevent fixed die insert crack sliding block location structure, a kind of mould structure |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4768747A (en) * | 1987-07-31 | 1988-09-06 | Williams John B | Slide clip |
JP2007296773A (en) * | 2006-05-01 | 2007-11-15 | Misumi Corp | Slide core device for multi-color molding |
KR20090051645A (en) * | 2007-11-19 | 2009-05-22 | 한국단자공업 주식회사 | Mold assembly |
CN102672891A (en) * | 2012-05-07 | 2012-09-19 | 乐清市鲲鹏五金有限公司 | Centrifugal fan blade injection moulding die |
CN203267125U (en) * | 2013-04-28 | 2013-11-06 | 宇科塑料(厦门)有限公司 | Structure for preventing plastic part from being deformed |
CN104985764A (en) * | 2015-06-23 | 2015-10-21 | 常州轻工职业技术学院 | End cover type plastic part mold |
CN208452194U (en) * | 2018-06-26 | 2019-02-01 | 华域视觉科技(上海)有限公司 | It is a kind of prevent fixed die insert crack sliding block location structure, a kind of mould structure |
-
2018
- 2018-06-26 CN CN201810674533.6A patent/CN108773029A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4768747A (en) * | 1987-07-31 | 1988-09-06 | Williams John B | Slide clip |
JP2007296773A (en) * | 2006-05-01 | 2007-11-15 | Misumi Corp | Slide core device for multi-color molding |
KR20090051645A (en) * | 2007-11-19 | 2009-05-22 | 한국단자공업 주식회사 | Mold assembly |
CN102672891A (en) * | 2012-05-07 | 2012-09-19 | 乐清市鲲鹏五金有限公司 | Centrifugal fan blade injection moulding die |
CN203267125U (en) * | 2013-04-28 | 2013-11-06 | 宇科塑料(厦门)有限公司 | Structure for preventing plastic part from being deformed |
CN104985764A (en) * | 2015-06-23 | 2015-10-21 | 常州轻工职业技术学院 | End cover type plastic part mold |
CN208452194U (en) * | 2018-06-26 | 2019-02-01 | 华域视觉科技(上海)有限公司 | It is a kind of prevent fixed die insert crack sliding block location structure, a kind of mould structure |
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Application publication date: 20181109 |