CN221494163U - Ejection structure of die-casting forming pressure reducing valve shell - Google Patents
Ejection structure of die-casting forming pressure reducing valve shell Download PDFInfo
- Publication number
- CN221494163U CN221494163U CN202322880403.7U CN202322880403U CN221494163U CN 221494163 U CN221494163 U CN 221494163U CN 202322880403 U CN202322880403 U CN 202322880403U CN 221494163 U CN221494163 U CN 221494163U
- Authority
- CN
- China
- Prior art keywords
- die
- core
- ejector pin
- pin
- reducing valve
- 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.)
- Active
Links
- 238000004512 die casting Methods 0.000 title abstract description 32
- 230000006837 decompression Effects 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The application discloses an ejection structure of a pressure reducing valve shell formed by die casting, which comprises a fixed die and a movable die, wherein a front die core is arranged in the fixed die, a rear die core corresponding to the front die core in position is arranged in the movable die, a jig for forming a fan-shaped part of the pressure reducing valve shell is connected to the rear die core, a first ejector rod core pin and a second ejector rod core pin for forming a cylinder part of the pressure reducing valve shell are arranged between the jig of the front die core and the jig of the rear die core, an annular boss propping against the end part of the cylinder part of the formed pressure reducing valve shell is arranged on the side wall of the first ejector rod core pin, an elastic component is arranged at the position of the fixed die corresponding to the first ejector rod core pin, the second ejector rod core pin is connected to the jig, and an ejector rod guide sleeve fixedly connected to the front die core is arranged between the first ejector rod core and the front die core. Through the ejection structure provided by the application, the booster and pressure-reducing valve housing is effectively separated from the fixed die, so that the product is prevented from being deformed due to die sticking, and the die casting production efficiency is improved.
Description
Technical Field
The utility model relates to the field of die casting dies, in particular to an ejection structure of a die casting forming pressure reducing valve shell.
Background
In the prior art, a pressure reducing valve housing is generally formed by pouring molten aluminum into a pressure chamber, filling a mold cavity at a high speed by pressure, and solidifying the molten aluminum under pressure. As shown in FIG. 1, the pressure reducing valve shell comprises a fan-shaped part and a cylinder part, wherein the diameter phi of the outer circle of the largest shell is 330mm, the average wall thickness is 7.5mm, the wall thickness of the largest part is 12mm, the wall thickness of the smallest part is 3mm, and the total depth of the cavity of the cylinder part is 190mm. When the die casting mold is designed, the mold adopts 800 tons of high-pressure casting, is designed into one-hole production, and realizes casting molding in the form of two groups of side drawing sliding blocks.
In implementing the prior art process, the inventors found that:
The cylinder part in the pressure reducing valve shell is arranged on one side of the fixed die for molding, and the die drawing angle of the outer wall of the cylinder part is only 1.5 degrees, so that the holding force of the fixed die side is relatively large, the die casting die is easy to deform when the die is opened, the die casting reject ratio is high, and the die casting capacity is low.
Therefore, it is necessary to provide an ejection structure for effectively separating a pressure-reducing valve housing from a fixed die at one side of the fixed die, so as to solve the problems of high die-casting reject ratio and low die-casting productivity caused by the fact that die-casting ejection deformation is easily caused when the die is opened due to relatively large holding force at the side of the fixed die in the prior art.
Disclosure of Invention
The embodiment of the application provides an ejection structure of a pressure reducing valve housing formed by die casting, which aims to solve the problems of high die casting reject ratio and low die casting productivity caused by easy die casting ejection deformation when a die is opened due to relatively large holding force on the side of a fixed die in the prior art.
Specifically, an ejecting structure of die casting shaping decompression valve casing, including the cover half, the movable mould, be equipped with the front mould benevolence in the cover half, be equipped with the back mould benevolence corresponding with front mould benevolence position in the movable mould, be connected with the tool that is used for shaping the fan-shaped position of decompression valve casing on the back mould benevolence, be equipped with first ejector pin core pin and the second ejector pin core pin that is used for shaping decompression valve casing drum position between the tool of front mould benevolence and back mould benevolence, first ejector pin core pin lateral wall has seted up the annular boss that offsets with fashioned decompression valve casing drum position tip, the cover half is equipped with elastic component in corresponding first ejector pin core pin position department, second ejector pin core pin coupling is in the tool, be equipped with the ejector pin guide pin bushing of fixed connection in the front mould benevolence between first ejector pin core and the front mould benevolence.
Further, the elastic component includes two sets of elastic units of locating the cover half at least, the elastic unit specifically includes:
The connecting rod is connected to the fixed die;
And the spring is sleeved between the connecting rod and the first ejector rod core pin and the fixed die.
Further, the end faces of the first ejector rod core pin and the second ejector rod core pin, which are propped against each other, are provided with a first groove and a second groove which are corresponding in position, the first groove and the second groove form a containing cavity, and the end faces of the second ejector rod core pin, which are propped against each other, are also provided with through grooves which are communicated with the containing cavity and the outer side wall of the second ejector rod core pin.
The technical scheme provided by the embodiment of the application has at least the following beneficial effects:
the ejection structure of the die-casting pressure reducing valve shell can effectively separate the cylinder part of the booster pressure reducing valve shell from the fixed mould, prevent the product from being deformed due to die sticking, reduce poor die casting and improve the die casting production efficiency.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic view of a relief valve housing according to an embodiment of the present application;
FIG. 2 is a schematic illustration of an ejection structure of a compression molded relief valve housing according to an embodiment of the present application;
FIG. 3 is another schematic illustration of an ejection structure of a compression molded relief valve housing according to an embodiment of the present application;
FIG. 4 is a schematic cross-sectional view of A_A according to the embodiment provided in FIG. 3;
FIG. 5 is a schematic illustration of a portion of an ejection structure of a compression molded relief valve housing provided in an embodiment of the present application;
FIG. 6 is a schematic cross-sectional B_B diagram according to the embodiment provided in FIG. 5;
FIG. 7 is a schematic cross-sectional view of C_C according to the embodiment provided in FIG. 6;
reference numerals:
An ejection structure-100 of a pressure reducing valve shell formed by die casting; fixed mould-10; front mould core-11; a movable mould-20; rear mould core-21; a jig-22; a first ejector pin core pin-23; annular boss-231; a second ejector pin core pin-24; a first groove-25; a second groove-26; a housing chamber-27; a through groove-28; an ejector rod guide sleeve-29; a rear die carrier bottom plate-30; thimble guide rod-31; a support block-32; an elastic component-40; an elastic unit-41; a connecting rod-42; a spring-43; a pressure relief valve housing-50.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1 to 7, the present application provides an ejection structure 100 of a pressure reducing valve housing formed by die casting, comprising a fixed mold 10 and a movable mold 20, wherein a front mold core 11 is disposed in the fixed mold 10, a rear mold core 21 corresponding to the front mold core 11 is disposed in the movable mold 20, a jig 22 for forming a fan-shaped portion of the pressure reducing valve housing 50 is connected to the rear mold core 21, a first ejector pin 23 and a second ejector pin 24 for forming a cylinder portion of the pressure reducing valve housing 50 are disposed between the front mold core 11 and the jig 22 of the rear mold core 21, an annular boss propping against the end portion of the cylinder portion of the pressure reducing valve housing 50 is disposed on a sidewall of the first ejector pin 23, an elastic component 40 is disposed at a position corresponding to the first ejector pin 23 in the fixed mold 10, the second ejector pin 24 is connected to the jig 22, and an ejector guide sleeve 29 fixedly connected to the front mold core 11 is disposed between the first ejector pin and the front mold core 11.
In the ejection structure 100 of the pressure reducing valve housing formed by die casting, the fixed die 10, the movable die 20, the front die core 11 and the rear die core 21 are all parts required by a formed product in a die casting forming die. The mold frame also comprises a rear mold frame bottom plate 30, a thimble guide rod 31, a supporting block 32 and other parts. The die-casting mold further includes a casting member, a drawing slider member, and the like. In the process of forming the pressure reducing valve housing 50 provided by the application through the die-casting forming die, the cylindrical part in the pressure reducing valve housing 50 is arranged on one side of the fixed die 10 for forming, and the die-drawing angle of the outer wall of the cylindrical part is only 1.5 degrees, so that the die-casting die is easy to deform when the die is opened, and the problems of high die-casting reject ratio and low die-casting capacity are caused.
To this end, the present application improves the structure at the molding cylinder portion in the mold to assist the pressure relief valve housing 50 to be effectively separated from the stationary mold 10, preventing the die casting mold from being deformed, i.e., the ejection structure 100 of the die casting pressure relief valve housing 50.
Specifically, the rear mold core 21 is connected with a jig 22 for forming the pressure reducing valve housing 50, and the jig 22 is mainly used for forming a fan-shaped part of the pressure reducing valve housing 50. A first ejector pin 23 and a second ejector pin 24 for forming the cylindrical part of the relief valve housing 50 are provided between the jigs 22 of the front mold core 11 and the rear mold core 21. As shown in fig. 1, the relief valve housing 50 mainly includes a fan-shaped portion and a cylinder portion.
It should be noted that the first ejector pin 23 and the second ejector pin 24 may be understood as moving-fixed abutment pins. The first ejector pin core pin 23 is provided on the side of the stationary mold 10. The second ejector pin 24 is set on the movable die 20 side and connected to the jig 22. It can be appreciated that the movable and fixed butt pins can balance the holding force at two sides of the movable and fixed die 10, so that the problem of unsmooth die stripping is solved.
On this basis, an annular boss propped against the end part of the cylinder part of the formed pressure reducing valve shell 50 is arranged on the side wall of the first ejector rod core pin 23. It should be noted that after the relief valve housing 50 is formed, the relief valve fills the cavity. Correspondingly, the end surface of the cylinder part of the pressure reducing valve abuts against the annular boss on the side wall of the first ejector rod core pin 23. It will be appreciated that the design may be based on the end face of the cylindrical portion of the relief valve housing 50. For example, if the end surface of the cylindrical portion of the relief valve housing 50 is an inclined end surface, the end surface of the annular boss is an inclined end surface that is bonded to the inclined end surface.
The fixed mold 10 is provided with an elastic assembly 40 at a position corresponding to the first ejector pin core pin 23, and it can be understood that the elastic assembly 40 is arranged, so that after the mold is opened, the elastic assembly 40 applies elastic force to the first ejector pin core pin 23, and the first ejector pin core pin 23 is displaced.
Specifically, the elastic assembly 40 includes at least two sets of elastic units 41 disposed on the fixed mold 10, and the elastic units 41 specifically include: a connecting rod 42 connected to the stationary mold 10; and a spring 43 sleeved on the connecting rod 42 and positioned between the first ejector pin core pin 23 and the fixed mold 10.
Specifically, the elastic component 40 may be two sets of elastic units 41, or may be three sets or four sets of elastic units 41, and the plurality of elastic units 41 of the elastic component 40 may be equally angularly distributed at positions of the fixed mold 10 corresponding to the first ejector pin 23 according to the center line of the first ejector pin core pin 23.
One end of a connecting rod 42 in the elastic unit 41 is fixedly connected to the fixed die 10, and the other end is movably inserted into the first ejector rod core pin 23. The first ejector pin core pin 23 and the fixed mold 10 are provided with accommodating spaces for accommodating springs 43 sleeved on the connecting rods 42.
It can be seen that at the moment of die opening of the movable die 20 and the fixed die 10, the elastic assembly 40 at the fixed die 10 stretches to push the first ejector pin core pin 23 to move toward the movable die 20. Correspondingly, the annular boss on the side wall of the first ejector rod core pin 23 pushes the end surface of the cylinder part of the pressure reducing valve housing 50 to move towards the moving die 20, so that the formed pressure reducing valve housing 50 is separated from the cavity and separated from the fixed front die core 11.
In addition, the end surfaces of the first ejector pin core pin 23 and the second ejector pin core pin 24 abutted against each other are provided with a first groove 25 and a second groove 26 which are corresponding in position, the first groove 25 and the second groove 26 form a containing cavity 27, and the end surface of the second ejector pin core pin 24 abutted against the first ejector pin core pin 23 is also provided with a through groove 28 which is communicated with the containing cavity 27 and the outer side wall of the second ejector pin core pin 24.
During filling of the mould cavity with the cast aluminium liquid, the receiving chamber 27 is arranged to let the gas in the mould cavity out into the receiving chamber 27 as possible through the through-going recess 28, so as to reduce the occurrence of blow hole defects in the formed relief valve housing 50.
It will be further appreciated that when the moving mold 20 and the fixed mold 10 are closed, the second ejector pin 24 pushes the first ejector pin 23 to move to complete the closing, and accordingly, the first ejector pin 23 compresses the spring 43 sleeved on the connecting rod 42, so that the first ejector pin 23 is ejected again when the moving mold 20 and the fixed mold 10 are opened next time.
Further, a ram guide sleeve 29 fixedly connected to the front die core 11 is provided between the front die core 11 and the first ram core pin 23.
Specifically, the ejector pin guide sleeve 29 can ensure the ejection direction of the first ejector pin core pin 23 when the die is instantaneously opened.
It should be further noted that the end surface of the ejector pin guide 29, which is close to the cylindrical portion of the formed relief valve housing 50, and the end surface of the annular boss formed on the side wall of the first ejector pin core pin 23 are abutted against the cylindrical portion end of the formed relief valve housing 50 together. It can be understood that, during the mold opening, the ejector pin guide sleeve 29 is fixedly connected to the guide sleeve of the front mold core 11, and the first ejector pin core pin 23 pushes part of the end surface of the end of the cylindrical part of the molded pressure reducing valve housing 50 under the guiding action of the ejector pin guide sleeve 29.
It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement "comprises one … …" does not exclude that an additional identical element is present in a process, method, article or apparatus that comprises the element.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (3)
1. The utility model provides an ejecting structure of compression casting shaping decompression valve casing, includes the cover half, the movable mould, be equipped with the front mould benevolence in the cover half, be equipped with the back mould benevolence corresponding with front mould benevolence position in the movable mould, its characterized in that is connected with the tool that is used for shaping the fan-shaped position of decompression valve casing on the back mould benevolence, is equipped with first ejector pin core pin and the second ejector pin core pin that is used for shaping decompression valve casing drum position between the tool of front mould benevolence and back mould benevolence, first ejector pin core pin lateral wall has seted up the annular boss that offsets with fashioned decompression valve casing drum position tip, the cover half is equipped with elastic component in corresponding first ejector pin core pin position department, second ejector pin core pin coupling is in the tool, be equipped with the ejector pin guide pin sleeve of fixed connection in front mould benevolence between first ejector pin core and the front mould benevolence.
2. The ejection structure of claim 1, wherein the elastic assembly comprises at least two sets of elastic units disposed on the fixed mold, the elastic units specifically comprising:
The connecting rod is connected to the fixed die;
And the spring is sleeved between the connecting rod and the first ejector rod core pin and the fixed die.
3. The ejection structure of claim 1, wherein the end surfaces of the first ejector pin and the second ejector pin abutted against each other are provided with a first groove and a second groove which are corresponding in position, the first groove and the second groove form a containing cavity, and the end surface of the second ejector pin abutted against the first ejector pin is further provided with a through groove which is communicated with the containing cavity and the outer side wall of the second ejector pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322880403.7U CN221494163U (en) | 2023-10-26 | 2023-10-26 | Ejection structure of die-casting forming pressure reducing valve shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322880403.7U CN221494163U (en) | 2023-10-26 | 2023-10-26 | Ejection structure of die-casting forming pressure reducing valve shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221494163U true CN221494163U (en) | 2024-08-09 |
Family
ID=92127193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322880403.7U Active CN221494163U (en) | 2023-10-26 | 2023-10-26 | Ejection structure of die-casting forming pressure reducing valve shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221494163U (en) |
-
2023
- 2023-10-26 CN CN202322880403.7U patent/CN221494163U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN221494163U (en) | Ejection structure of die-casting forming pressure reducing valve shell | |
| CN209998226U (en) | machining die | |
| CN203945584U (en) | A kind of undercut core loose injection mould based on improving moulding and withdrawing pattern efficiency | |
| CN104118095A (en) | Lateral parting core-pulling injection mold for improving forming and mold pulling efficiency | |
| CN220387849U (en) | Quick ejection structure of mould | |
| CN214644256U (en) | Punching die for special-shaped pipe | |
| CN212469605U (en) | Valve body forging die | |
| CN211662451U (en) | Mold ejection system | |
| CN110789066B (en) | Six-way pipe fitting injection mold | |
| CN211941897U (en) | Demoulding mechanism with internally-drawn sliding block | |
| CN218798994U (en) | Die casting die cover half structure | |
| CN208514809U (en) | A kind of appliance shell forming die | |
| CN222242577U (en) | A casting die for producing aluminum alloy battery pack parts | |
| CN215882455U (en) | Mould with novel thimble structure | |
| CN220198422U (en) | Forming die for support core plate of large thick-wall filter press | |
| CN212826323U (en) | Die stroke protection mechanism | |
| CN219153475U (en) | Die easy to disassemble and assemble | |
| CN219852072U (en) | Hub brake cover die casting die core pulling structure | |
| CN220093005U (en) | A positioning structure used to prevent product deformation | |
| CN222626077U (en) | A cold extrusion processing device for electrical connector joints | |
| CN111570761B (en) | Die-casting die core-pulling mechanism | |
| CN222946113U (en) | Automobile buckle injection mold | |
| CN112808968B (en) | Combined type mold core and die-casting mold | |
| CN219445951U (en) | Injection mold with combined demoulding mechanism | |
| CN219338442U (en) | Injection molding die of toy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |