CN201316794Y - Core-pulling mechanism for die - Google Patents
Core-pulling mechanism for die Download PDFInfo
- Publication number
- CN201316794Y CN201316794Y CNU2008202019873U CN200820201987U CN201316794Y CN 201316794 Y CN201316794 Y CN 201316794Y CN U2008202019873 U CNU2008202019873 U CN U2008202019873U CN 200820201987 U CN200820201987 U CN 200820201987U CN 201316794 Y CN201316794 Y CN 201316794Y
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- Prior art keywords
- core
- oil cylinder
- cylinders
- plate
- pulling
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- Expired - Fee Related
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Abstract
The utility model discloses a core-pulling mechanism for a die, which comprises two cylinders, a core-pulling plate and a core-pulling rod; wherein, the two cylinders are formed into a double-cylinder unit, and are respectively fixed on a moving clamp plate of the die; the piston rods of both the two cylinders are reversely assembled in respective cylinders, and are respectively connected with the core-pulling plate; the moving piston rods can drive the core-pulling plate to move together; both ends of the core-pulling rod are respectively connected with the core-pulling plate and a slider of the die; and the core-pulling rod is positioned between the two cylinders which are symmetrically arranged with the core-pulling rod as the center. The utility model, which utilizes the two reversely assembled cylinders to pull the core of the die, has the advantages of simple structure, small occupied space, convenient mounting and high utilization rate of the core-pulling force source of the oil cylinders.
Description
Technical field
The utility model relates to a kind of core-pulling mechanism of mould, particularly relates to a kind ofly utilizing that two oil cylinders are counter puts into the mechanism that capable mould is loosed core.
Background technology
When die casting since profile or side opening former thus cause it in die casting, to solidify after simply during the folding demoulding, mould often needs to increase core-pulling mechanism and carries out the side direction demoulding, core-pulling mechanism is except utilizing taper pin looses core as mechanical force, also can use oil cylinder to do to loose core the power source, wherein, the loose core of oil cylinder mechanism structure is simple, wide adaptability, stable action is controlled, and the stroke of loosing core is very big, and this is that machinery is loosed core and can't be replaced.
The core-pulling mechanism of mould as shown in Figure 1 in the prior art, oil cylinder 10 is installed on the oil cylinder frame of being made up of oil cylinder fixed head 7, support column 8 and support column 9, the shared space of core-pulling mechanism this moment is Lb, Lb=L1+L2+L5, and the power of loosing core during work source is the tensile force f 2 of oil cylinder:
F2＝1/4π(A
2-B
2)*P
(A is the diameter of the piston of oil cylinder, and B is the diameter of the piston rod of oil cylinder, and P is the pressure of hydraulic oil)
The power source of loosing core is to be produced by the rod end of oil cylinder, and pressure area is the area that the area of piston deducts piston rod, cylinder force utilization rate minimum.
There is following defective in above-mentioned core-pulling mechanism:
(1) take up room greatlyyer, and when the die shape size increases, the mould installation is difficulty more, even need select the bigger die casting machine of specification for use;
(2) utilization rate in loose core of oil cylinder power source is very low, has caused certain wasting of resources.
The utility model content
The purpose of this utility model provides a kind of core-pulling mechanism of mould, utilizes that two oil cylinders are counter to be put into capable mould and loose core, and simple in structure, it is less to take up room, easy for installation, the utilization rate height in loose core of oil cylinder power source.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions: a kind of core-pulling mechanism of mould, it comprises oil cylinder, the loose core plate and the pull bar of loosing core, it is characterized in that: described oil cylinder is two, form two oil cylinder unit, two oil cylinders are fixedly mounted on respectively on the dynamic model cage plate of mould, the piston rod of two oil cylinders all oppositely is installed in separately the oil cylinder, two piston rods are connected with the described plate of loosing core respectively, piston rod drives the described plate interlock of loosing core in moving process, the two ends of the described pull bar of loosing core are connected with the take-up housing of loose core plate and mould respectively, the described pull bar of loosing core is positioned in the middle of two oil cylinders, and described two oil cylinders are that the center is symmetrical distribution with the pull bar of loosing core.
The piston rod of described two oil cylinders is fixedlyed connected by screw respectively with the described plate of loosing core.
Compared with prior art, the utility model has following beneficial effect:
Oil cylinder was directly installed on the dynamic model cage plate of mould when (1) the utility model used, and did not need to install in addition the oil cylinder frame, and it is less, very easy to use therefore to take up room;
(2) the utility model adopts two oil cylinder unit to loose core, and makes the distribution balance more of the power of loosing core, and the oil cylinder duty is more stable, the loosing core of the big and large mold of the stroke that is more suitable for loosing core;
(3) piston rod of oil cylinder is oppositely installed in the utility model, and what use when therefore loosing core is the thrust rather than the pulling force of oil cylinder, has improved the utilization rate in loose core of oil cylinder power source.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation before existing loose core of oil cylinder mechanism looses core;
Fig. 2 is the structural representation before the utility model is loosed core;
Fig. 3 is the structural representation after the utility model is loosed core.
The specific embodiment
State before the core-pulling mechanism that is illustrated in figure 2 as the utility model mould is loosed core, comprise two oil cylinders unit that oil cylinder 4 and oil cylinder 5 are formed, the loose core plate 6 and the pull bar 3 of loosing core, oil cylinder 4 and oil cylinder 5 are fixedly mounted on respectively on the dynamic model cage plate 1 of mould, the piston rod of oil cylinder 4 and oil cylinder 5 all oppositely is installed in separately the oil cylinder, two piston rods are connected with the plate 6 of loosing core respectively, piston rod drives plate 6 interlocks of loosing core in moving process, the loose core two ends of pull bar 3 are connected with the take-up housing 2 of loose core plate 6 and mould respectively, the pull bar 3 of loosing core is positioned in the middle of oil cylinder 4 and the oil cylinder 5, and oil cylinder 4 and oil cylinder 5 are that the center is symmetrical distribution with the pull bar 3 of loosing core.
The piston rod of oil cylinder 4 and oil cylinder 5 is fixedlyed connected by screw 11 respectively with the plate 6 of loosing core.
The shared space of core-pulling mechanism this moment is La, La=L1+L2+L3+L4 is because L3+L4＜L5 (because the L5 among Fig. 1 must be greater than the needed length of loosing core, often L3+L4 is far smaller than the required length of loosing core), therefore La＜Lb, the shared space of the utility model is less.
State after the core-pulling mechanism that is illustrated in figure 3 as the utility model mould is loosed core, during oil cylinder work, the piston rod that thrust F1 promotes oil cylinder outwards moves, and drives take-up housing 2 outwards motion together by the loose core plate 6 and the pull bar 3 of loosing core, and extracts the parts that take-up housing 2 is connected simultaneously out.Wherein, the power source of loosing core is the thrust F1 of oil cylinder:
F1＝1/4πA
2*P
(A is the diameter of the piston of oil cylinder, and P is the pressure of hydraulic oil)
The power source of loosing core is to be produced by the rear end of oil cylinder, the pressure area maximum, so the utilization rate of cylinder force also reaches maximum.In addition, the distribution that two oil cylinder cellular constructions also make the power of loosing core is balance more, and motion process is more steady.
Claims (2)
1. the core-pulling mechanism of a mould, it comprises oil cylinder, the loose core plate and the pull bar of loosing core, it is characterized in that: described oil cylinder is two, form two oil cylinder unit, two oil cylinders are fixedly mounted on respectively on the dynamic model cage plate of mould, the piston rod of two oil cylinders all oppositely is installed in separately the oil cylinder, two piston rods are connected with the described plate of loosing core respectively, piston rod drives the described plate interlock of loosing core in moving process, the two ends of the described pull bar of loosing core are connected with the take-up housing of loose core plate and mould respectively, the described pull bar of loosing core is positioned in the middle of two oil cylinders, and described two oil cylinders are that the center is symmetrical distribution with the pull bar of loosing core.
2. the core-pulling mechanism of a kind of mould according to claim 1, it is characterized in that: the piston rod of described two oil cylinders is fixedlyed connected by screw respectively with the described plate of loosing core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202019873U CN201316794Y (en) | 2008-10-17 | 2008-10-17 | Core-pulling mechanism for die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202019873U CN201316794Y (en) | 2008-10-17 | 2008-10-17 | Core-pulling mechanism for die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201316794Y true CN201316794Y (en) | 2009-09-30 |
Family
ID=41195566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202019873U Expired - Fee Related CN201316794Y (en) | 2008-10-17 | 2008-10-17 | Core-pulling mechanism for die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201316794Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736963A (en) * | 2013-12-25 | 2014-04-23 | 苏州三基铸造装备股份有限公司 | Pressure casting slider core pulling mechanism with local pressurization |
| CN103847073A (en) * | 2014-02-13 | 2014-06-11 | 苏州市振业模具有限公司 | Plastic mould with sliding block core-pulling mechanism |
| CN107471555A (en) * | 2017-07-11 | 2017-12-15 | 重庆工商大学 | A kind of rapidly and efficiently shaped device and method of the lateral hole jacket casing based article of band |
| CN108311666A (en) * | 2018-04-23 | 2018-07-24 | 重庆瀚立机械制造有限公司 | A kind of die casting linkage mechanism |
| CN115815566A (en) * | 2023-01-10 | 2023-03-21 | 宁波瑞立机械有限公司 | Vacuumizing die-casting die of automobile rear base support |
-
2008
- 2008-10-17 CN CNU2008202019873U patent/CN201316794Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736963A (en) * | 2013-12-25 | 2014-04-23 | 苏州三基铸造装备股份有限公司 | Pressure casting slider core pulling mechanism with local pressurization |
| CN103847073A (en) * | 2014-02-13 | 2014-06-11 | 苏州市振业模具有限公司 | Plastic mould with sliding block core-pulling mechanism |
| CN107471555A (en) * | 2017-07-11 | 2017-12-15 | 重庆工商大学 | A kind of rapidly and efficiently shaped device and method of the lateral hole jacket casing based article of band |
| CN107471555B (en) * | 2017-07-11 | 2019-07-26 | 重庆工商大学 | A kind of rapidly and efficiently molding machine and method of the lateral hole cylinder set based article of band |
| CN108311666A (en) * | 2018-04-23 | 2018-07-24 | 重庆瀚立机械制造有限公司 | A kind of die casting linkage mechanism |
| CN115815566A (en) * | 2023-01-10 | 2023-03-21 | 宁波瑞立机械有限公司 | Vacuumizing die-casting die of automobile rear base support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20171017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |