CN108372284A - A kind of change nodal pattern die casting mould core needle construction not easy to break - Google Patents
A kind of change nodal pattern die casting mould core needle construction not easy to break Download PDFInfo
- Publication number
- CN108372284A CN108372284A CN201810361385.2A CN201810361385A CN108372284A CN 108372284 A CN108372284 A CN 108372284A CN 201810361385 A CN201810361385 A CN 201810361385A CN 108372284 A CN108372284 A CN 108372284A
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- CN
- China
- Prior art keywords
- mating part
- core needle
- hanging platform
- die casting
- diameter
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- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2236—Equipment for loosening or ejecting castings from dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of change nodal pattern die casting mould core needle constructions not easy to break, including core needle moulding section (1), mating part (2), hanging platform part (3), the mating part (2) is designed to two-layer configuration；(it is designed to two-layer configuration by changing mating part structure, increase the diameter at mating part level-one, connected using the larger angles C between two-stage), increase hanging platform diameter thickness, change hanging platform and mating part connection type, core needle stress intensity can be effectively increased, stress concentration is reduced, plays the anti-fracture effect of mould type core needle, and greatly improve die casting production capacity, mold failure time and failure rate are reduced, cost is saved.
Description
Technical field
The invention belongs to die casting mould core needle fields, and in particular to a kind of change nodal pattern die casting mould core not easy to break
Needle construction.
Background technology
Existing die casting mould core needle construction (as shown in Figure 1) employed in press casting procedure is unreasonable, including core
Needle moulding section, mating part, hanging platform part, wherein moulding section generate larger package power with product, pull mating part,
Prodigious influence is caused on hanging platform part, when pulling force is more than core needle stress degree, mating part is detached from from hanging platform root, is made
At broken needle phenomenon.Existing die casting mould core needle construction stress concentration is serious, the phenomenon that frequently fracture there are core needle, type
Core needle short life, this directly affects Die Casting continuity, causes production capacity not up to standard, of high cost.
Therefore, exist in industry and solve the active demand that core needle is frequently broken.
Invention content
For at least one of prior art disadvantages described above or Improvement requirement, the present invention provides a kind of not easy to break
Become nodal pattern die casting mould core needle construction, improved for original core needle construction, there is service life is long, replacement is quick etc.
Advantage greatly meets production requirement, cost-effective.
To achieve the above object, according to one aspect of the present invention, a kind of change nodal pattern compression mod not easy to break is provided
Have core needle construction, including core needle moulding section, mating part, hanging platform part, core needle, which is integrally formed, to be made；The molding
Part and product generate package power, and when product stripping, power is pullled in generation, pulls the mating part, the mating part with
The hanging platform portion connection generates stress concentration；
The mating part is designed to that two-layer configuration, first order mating part are connect with the hanging platform part, and the second level is matched
It closes part to connect with the moulding section, the diameter D of second level mating part is the most auger diameter of the moulding section；Described
Level-one mating part is connect with the hanging platform part, and the diameter D of the first order mating part is more than the second level auxiliary section
Point diameter D, less than the diameter D of the hanging platform part；The entire length L of the first order mating part and the hanging platform part
Less than the length L of the second level mating part；
The die casting back side is close in the hanging platform part, ensures that core needle does not move forward and backward.
Preferably, the angles R interconnecting piece is provided between the first order mating part and the hanging platform part.
Preferably, the angles C interconnecting piece is provided between the first order mating part and the second level mating part.
Preferably, by increasing the method for the thickness and diameter of the hanging platform part simultaneously, increase its tensile strength, improve
Resisting fractre intensity.
Above-mentioned preferred feature can be combined with each other as long as they do not conflict with each other.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, have below beneficial to effect
Fruit：
1, mating part is changed to two-stage, by increasing the diameter of mating part and hanging platform portion connection, can increase stress
Intensity carries High Rupturing Capacity, is connected using the larger angles C, is further reduced stress concentration；
2, increase the angles R in mating part and hanging platform part, be further reduced stress concentration；
3, increase thickness, the diameter of hanging platform part, increase stress intensity；
4, overall to play the anti-fracture effect of mould type core needle, and die casting production capacity is greatly improved, reduce mold event
Downtime and failure rate, save cost.
Description of the drawings
Fig. 1 is prior-art illustration；
Fig. 2 is schematic diagram of the embodiment of the present invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
It does not constitute a conflict with each other and can be combined with each other.The present invention is described in more detail With reference to embodiment.
See Fig. 1, in original core needle construction, it is about Φ 5.5mm that first wife, which closes section diameter D1, and length is about 56mm, and original is hung
D is about Φ 10mm between platform part, thickness A is about 6mm, the part of the force 4 that first wife closes section diameter and former hanging platform part is constituted
The sum of length about 62mm, core needle total length L is about 79mm.
As a kind of better embodiment of the present invention, as shown in Fig. 2, the present invention puies forward a kind of change nodal pattern pressure not easy to break
Casting mould core needle construction is mainly used for the use of mould type core needle, core pulling needle, including core needle moulding section 1, auxiliary section
Divide 2, hanging platform part 3, core needle, which is integrally formed, to be made；The moulding section 1 and product generate package power, when product stripping, production
Power is pullled in life, pulls the mating part 2, and stress concentration is generated in the mating part 2 and 3 junction of hanging platform part.
The mating part 2 is designed to that two-layer configuration, first order mating part 21 are connect with the hanging platform part 3,
Second level mating part 22 is connect with the moulding section 1, and the diameter D1 of second level mating part 22 is the moulding section 1
Most auger diameter；The first order mating part 21 is connect with the hanging platform part 3, the diameter D2 of the first order mating part 21
More than the diameter D1 of the second level mating part 22, less than the diameter D of the hanging platform part 3.Specifically, first order auxiliary section
It is about Φ 8mm to divide 21 diameter D2, and 22 diameter D1 of second level mating part about Φ 5.5mms consistent with full size increases diameter one
The setting of grade can increase stress intensity, carry High Rupturing Capacity.The first order mating part 21 and the hanging platform part 3 it is whole
Body length L1 is less than the length L2 of the second level mating part 22, and specifically, L1 is about 24mm, and L2 is about 33mm, entire type
Core needle length L is about 79mm.
The die casting back side is close in the hanging platform part 3, ensures that core needle does not move forward and backward.
Preferably, it is provided with the angles R interconnecting piece 6 between the first order mating part 21 and the hanging platform part 3, can subtract
Few stress concentration, the angles R such as R1mm ensure that hanging platform part and mating part are not in fracture.
Preferably, the angles C interconnecting piece is provided between the first order mating part 21 and the second level mating part 22
5, the C connections between two-stage can also reduce stress concentration, and using the larger angles C, such as C5mm, ensureing will not between two-layer configuration
It is broken.
Preferably, by increasing the method for the thickness and diameter of the hanging platform part 3 simultaneously, increase its tensile strength, carry
Highly resistance fracture strength, existing 3 diameter D of hanging platform part is about Φ 14mm, and thickness A is about 8mm.
It is verified through consecutive production, the change nodal pattern die casting mould core needle construction that the invention provides is not easy in process of production
Fracture (is designed to two-layer configuration, increases the diameter at mating part level-one, used between two-stage by changing mating part structure
The connection of larger angles C), increase hanging platform diameter thickness, change hanging platform and mating part connection type, can be effectively increased core needle by
Power intensity reduces stress concentration, plays the anti-fracture effect of mould type core needle, and greatly improve die casting production capacity, reduce
Mold failure time and failure rate, save cost.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should all include
Within protection scope of the present invention.
Claims (4)
1. a kind of change nodal pattern die casting mould core needle construction not easy to break, including core needle moulding section (1), mating part
(2), hanging platform part (3), core needle, which is integrally formed, to be made；The moulding section (1) generates package power, product stripping with product
When, power is pullled in generation, pulls the mating part (2), is produced in the mating part (2) and hanging platform part (3) junction
Raw stress concentration；It is characterized in that：
The mating part (2) is designed to that two-layer configuration, first order mating part (21) are connect with the hanging platform part (3), the
Two level mating part (22) is connect with the moulding section (1), and the diameter D1 of second level mating part (22) is the forming part
Divide the most auger diameter of (1)；The first order mating part (21) connect with the hanging platform part (3), the first order auxiliary section
Divide diameter D1, the diameter D less than the hanging platform part (3) that the diameter D2 of (21) is more than the second level mating part (22)；
The entire length L1 of the first order mating part (21) and the hanging platform part (3) is less than the second level mating part (22)
Length L2；
The hanging platform part (3) is close to the die casting back side, ensures that core needle does not move forward and backward.
2. change nodal pattern die casting mould core needle construction not easy to break as described in claim 1, it is characterised in that：Described first
It is provided with the angles R interconnecting piece (6) between grade mating part (21) and the hanging platform part (3).
3. such as claim 1-2 any one of them change nodal pattern die casting mould core needle construction not easy to break, it is characterised in that：
It is provided with the angles C interconnecting piece (5) between the first order mating part (21) and the second level mating part (22).
4. change nodal pattern die casting mould core needle construction not easy to break as described in any one of claims 1-3, it is characterised in that：
Method by increasing the thickness and diameter of the hanging platform part simultaneously, increases its tensile strength, improves Resisting fractre intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810361385.2A CN108372284A (en) | 2018-04-20 | 2018-04-20 | A kind of change nodal pattern die casting mould core needle construction not easy to break |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810361385.2A CN108372284A (en) | 2018-04-20 | 2018-04-20 | A kind of change nodal pattern die casting mould core needle construction not easy to break |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108372284A true CN108372284A (en) | 2018-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810361385.2A Pending CN108372284A (en) | 2018-04-20 | 2018-04-20 | A kind of change nodal pattern die casting mould core needle construction not easy to break |
Country Status (1)
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| CN (1) | CN108372284A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290619A (en) * | 2022-02-08 | 2022-04-08 | 盘起工业(大连)有限公司 | Prevent to hang cracked mould core of platform |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0890324A (en) * | 1994-02-07 | 1996-04-09 | Akimichi Koide | Core drill and core drill with holder |
| JPH09323149A (en) * | 1996-06-03 | 1997-12-16 | Honda Motor Co Ltd | Structure of pin for hole as cast in die for casting |
| CN103009519A (en) * | 2012-10-10 | 2013-04-03 | 中国商用飞机有限责任公司 | Multiple-stage type forming core mold |
| CN203031823U (en) * | 2012-09-25 | 2013-07-03 | 湖州安达汽车配件有限公司 | Mold with core capable of being replaced quickly |
| CN106079270A (en) * | 2016-07-08 | 2016-11-09 | 苏州森勇华精密模具有限公司 | A kind of mold cores for throwaway chopsticks injection molding |
| CN206335039U (en) * | 2016-12-23 | 2017-07-18 | 成都西顿硬质合金有限公司 | A kind of mould for producing the vertical dress knife of hard alloy |
-
2018
- 2018-04-20 CN CN201810361385.2A patent/CN108372284A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0890324A (en) * | 1994-02-07 | 1996-04-09 | Akimichi Koide | Core drill and core drill with holder |
| JPH09323149A (en) * | 1996-06-03 | 1997-12-16 | Honda Motor Co Ltd | Structure of pin for hole as cast in die for casting |
| CN203031823U (en) * | 2012-09-25 | 2013-07-03 | 湖州安达汽车配件有限公司 | Mold with core capable of being replaced quickly |
| CN103009519A (en) * | 2012-10-10 | 2013-04-03 | 中国商用飞机有限责任公司 | Multiple-stage type forming core mold |
| CN106079270A (en) * | 2016-07-08 | 2016-11-09 | 苏州森勇华精密模具有限公司 | A kind of mold cores for throwaway chopsticks injection molding |
| CN206335039U (en) * | 2016-12-23 | 2017-07-18 | 成都西顿硬质合金有限公司 | A kind of mould for producing the vertical dress knife of hard alloy |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290619A (en) * | 2022-02-08 | 2022-04-08 | 盘起工业(大连)有限公司 | Prevent to hang cracked mould core of platform |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181213 Address after: 430000 Chevrolet Avenue 8, Jingang New Area, Jiangxia Economic Development Zone, Wuhan City, Hubei Province Applicant after: GUANGDONG HONGTU WUHAN DIE CASTING CO., LTD. Applicant after: Guangdong Hongtu Technology (Holdings) Co., Ltd. Address before: 430000 No. 8 Chevrolet Avenue, Jingang New District, Jiangxia District, Wuhan City, Hubei Province Applicant before: GUANGDONG HONGTU WUHAN DIE CASTING CO., LTD. |
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| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180807 |
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| RJ01 | Rejection of invention patent application after publication |