CN218015716U - Oil cylinder core-pulling device for front die of die-casting die - Google Patents
Oil cylinder core-pulling device for front die of die-casting die Download PDFInfo
- Publication number
- CN218015716U CN218015716U CN202222503281.5U CN202222503281U CN218015716U CN 218015716 U CN218015716 U CN 218015716U CN 202222503281 U CN202222503281 U CN 202222503281U CN 218015716 U CN218015716 U CN 218015716U
- Authority
- CN
- China
- Prior art keywords
- slider
- taper pin
- cylinder
- die
- core
- 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
Images
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses a hydro-cylinder device of loosing core for die casting die front mould, including front mould benevolence, the hydro-cylinder, the slider fixing base, the slider, mold core and taper pin seat, the rear end of taper pin seat links to each other with the output of hydro-cylinder, the front end of taper pin seat is the taper pin portion of downward sloping, the inboard of slider fixing base is equipped with the slot, wear to be equipped with in the slider that whole inclination is 10 ~ 20 oblique perforation, the angle of taper pin portion downward sloping is unanimous with oblique perforated inclination, separable the inserting in the slot after oblique perforation is passed in taper pin portion activity, and, the clearance of going up and down has between oblique perforation and the taper pin portion. The utility model provides a hydro-cylinder device of loosing core for in the die casting die, can realize the mould smoothly and loose core, and, need not additionally to set up unnecessary slider locking mechanism, have advantages such as simple structure, small, low cost, practicality are strong.
Description
Technical Field
The utility model relates to a hydro-cylinder device of loosing core for die casting die front mould belongs to mould technical field.
Background
In the production process of the die-casting die, a die core in a cavity needs to be taken out during product forming so as to ensure the product forming quality. At present, an oil cylinder core-pulling device is usually arranged on a front die (also called a fixed die) of a die-casting die, the existing oil cylinder core-pulling device usually comprises an oil cylinder and a sliding block, and when the oil cylinder core-pulling device is used, the oil cylinder is used for pushing the sliding block to achieve the core-pulling purpose. However, in the die-casting process, the die core is retracted by the pressure of the die-casting injection, and further the slider is retracted, so that the production process is unstable, and finally the reject ratio of the formed product is high. In order to prevent the sliding block from retreating, a sliding block locking mechanism (such as an anti-sliding block retreating oil cylinder) is usually additionally arranged at present to lock the sliding block, so that the oil cylinder core pulling device is large in size and high in cost.
SUMMERY OF THE UTILITY MODEL
The above-mentioned problem to prior art exists, the utility model aims at providing a low price is used for hydro-cylinder device of loosing core of die casting die front mould.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an hydro-cylinder device of loosing core for die casting die front mould, includes front mould benevolence, hydro-cylinder, slider fixing base, slider, mold core and taper pin seat, the bottom of front mould benevolence is fixed to hydro-cylinder and slider fixing base, the slider is installed on the slider fixing base and can be followed vertical direction and slided, the mold core is located the top of slider and vertical activity wears to locate front mould benevolence, the rear end of taper pin seat links to each other with the output of hydro-cylinder, the taper pin portion that the front end of taper pin seat is the downward sloping, the inboard of slider fixing base is equipped with the slot with taper pin portion adaptation, wear to be equipped with whole inclination in the slider and be 10 ~ 20 oblique perforation, the angle of taper pin portion downward sloping is unanimous with oblique perforated inclination, separable inserting in the slot after oblique perforation is passed in taper pin portion activity to, the lift clearance has between oblique perforation and the taper pin portion.
According to one embodiment, an oil cylinder fixing seat is fixedly installed at the bottom of the front mold core, and the oil cylinder is fixed at the bottom of the front mold core through the oil cylinder fixing seat.
According to the embodiment, the top end of the taper pin base is provided with a limiting part, a limiting groove horizontally extending in the front-back direction is arranged at the position, corresponding to the limiting part, of the sliding block fixing base, and the length of the limiting groove is larger than that of the limiting part.
According to the embodiment, a dovetail groove extending in the vertical direction is formed in the sliding block fixing seat, and the sliding block is connected with the sliding block fixing seat in a sliding mode through the dovetail groove.
In one embodiment, the slider fixing seat and the taper pin part are in 3-5-degree inclined insertion fit.
Compared with the prior art, the utility model has the advantages of:
the utility model provides a hydro-cylinder device of loosing core for among the die casting die, can realize the mould smoothly and loose core to, need not additionally to set up unnecessary slider locking mechanism, have advantages such as simple structure, small, low cost, convenient to use, practicality are strong.
Drawings
FIG. 1 is a front view of a cylinder core-pulling device for a front mold of a die-casting mold before core pulling according to an embodiment;
FIG. 2 is a front cross-sectional view of a cylinder core-pulling device for a front mold of a die-casting mold before core pulling according to the embodiment;
FIG. 3 is a bottom view of a cylinder core-pulling device for a front mold of a die-casting mold before core-pulling according to the embodiment;
FIG. 4 is a front view of the cylinder core-pulling device for the front mold of the die-casting mold after core pulling according to the embodiment;
FIG. 5 is a front cross-sectional view of a cylinder core-pulling device for a front mold of a die-casting mold after core pulling according to the embodiment;
FIG. 6 is a schematic structural diagram of the slider holder according to the embodiment;
FIG. 7 is a schematic structural view of the slider in the embodiment;
FIG. 8 is a schematic structural view of the angle pin boss according to the embodiment;
the numbers in the figures are as follows: 1. a front mold core; 2. an oil cylinder; 3. a slide block fixing seat; 31. a slot; 32. a limiting groove; 33. a dovetail groove; 34. an inclined pin base mounting groove; 4. a slider; 41. obliquely perforating; 42. a swallowtail; 5. a mold core; 6. an angle pin seat; 61. a taper pin portion; 62. a limiting part; 7. an oil cylinder fixing seat; 8. and the inclined pin base pressing plate.
Detailed Description
The technical solution of the present invention will be further clearly and completely described below with reference to the accompanying drawings and examples.
Examples
Please refer to fig. 1 to 8: the embodiment provides a hydro-cylinder device of loosing core for die casting die front mould, including front mould benevolence 1, hydro-cylinder 2, slider fixing base 3, slider 4, mold core 5 and taper pin seat 6, hydro-cylinder 2 and the fixed bottom of locating front mould benevolence 1 of slider fixing base 3, slider 4 installs on slider fixing base 3 and can slide along vertical direction, mold core 5 is located slider 4's top and vertical activity and wears to locate front mould benevolence 1, the rear end of taper pin seat 6 links to each other with the output of hydro-cylinder 2, the front end of taper pin seat 6 is the taper pin portion 61 of downward sloping, the inboard of slider fixing base 3 is equipped with the slot 31 with taper pin portion 61 looks adaptation, wear to be equipped with whole inclination in the slider 4 and be 10 ~ 20 oblique perforation 41 of slope, the angle of taper pin portion 61 is unanimous with the inclination of taper pin portion 41, separable inserting in oblique perforation 41 after oblique perforation 41 is passed in the activity of taper pin portion 61 to, have the lift clearance between oblique perforation 41 and the taper pin portion 61.
In this embodiment, the inclined through hole 41 is specifically an inclined square hole, and correspondingly, the inclined pin part 61 is integrally of an inclined square column structure matched with the inclined square hole. The inclined through hole 41 and the inclined pin part 61 have a lifting clearance therebetween, i.e., the diameter of the inclined through hole 41 is larger than the outer diameter of the inclined pin part 61, so that the slider 4 can be lifted.
In this embodiment, the bottom of the front mold core 1 is fixedly installed with an oil cylinder fixing seat 7, and the oil cylinder 2 is fixed at the bottom of the front mold core 1 through the oil cylinder fixing seat 7. The oil cylinder 2 is made of a commercially available product.
In this embodiment, please refer to fig. 2, 5, 6, and 8, a limiting portion 62 is disposed at the top end of the taper pin seat 6, a limiting groove 32 horizontally extending along the front-back direction is disposed at a position of the slider fixing seat 3 corresponding to the limiting portion 62, and the length of the limiting groove 32 is greater than that of the limiting portion 62. When the angle pin base is used, the angle pin base 6 can move back and forth under the driving of the oil cylinder 2, and then the limiting part 62 is driven to move back and forth in the limiting groove 32, the distance of the angle pin base 6 moving back and forth is limited by the limiting groove 32, and the length difference between the limiting groove 32 and the limiting part 62 is the maximum distance of the angle pin base 6 moving back and forth. The maximum distance of the taper pin boss 6 moving back and forth is determined by the lifting distance of the slider 4 and the inclination angle of the taper pin portion 61 (i.e., the inclination angle of the taper through hole 41), and the lifting distance of the slider 4 can be indirectly limited by limiting the distance of the taper pin boss 6 moving back and forth, so that the slider 4 can be prevented from excessively descending during demolding, for example: in this embodiment, the maximum distance of the forward and backward movement of the taper pin boss 6 is set to L, the distance of the upward and downward movement of the slider 4 is set to D, and the inclination angle of the taper pin portion 61 (i.e., the inclination angle of the taper through hole 41) is set to α, and the relationship therebetween is tan α = D/L. In this embodiment, the inclination angle α of the inclined through hole 41 is preferably 15 °, which not only ensures the lifting distance of the slider 4, but also prevents the slider 4 from lifting too fast.
In this embodiment, please refer to fig. 3, 6, and 7, the slider fixing seat 3 is provided with a dovetail groove 33 extending along a vertical direction, the slider 4 is slidably connected with the slider fixing seat 3 through the dovetail groove 33, correspondingly, the bottom of the slider 4 is provided with a dovetail portion 42 adapted to the dovetail groove 33, when in use, the dovetail portion 42 is clamped in the dovetail groove 33, the slider 4 is lifted along the dovetail groove 33 in the vertical direction, and the lifting of the slider 4 can be guided through the dovetail groove 33.
In addition, the slide block fixing seat 3 is provided with an inclined pin seat mounting groove 34 for accommodating the inclined pin seat 6, the main body part of the inclined pin seat 6 is mounted in the inclined pin seat mounting groove 34, an inclined pin part 61 of the inclined pin seat 6 passes through the inclined through hole 41 of the slide block 4 and then is detachably inserted into the slot 31, and a limiting part 62 of the inclined pin seat 6 is positioned in the limiting groove 32. Therefore, the sliding block 4, the taper pin seat 6 and the sliding block fixing seat 3 are integrated, and the overall size of the device can be further reduced.
In this embodiment, the slider fixing seat 3 and the taper pin portion 61 have 3 to 5 ° taper fit, that is: the matching inclination beta between the side wall of the slot 31 and the bottom end of the front end of the taper pin part 61 is 3-5 degrees, in the embodiment, the inclination beta is preferably 5 degrees, so that the mutual matching action of the taper pin part 61 and the slider fixing seat 3 can be ensured, and the die core 5 and the slider 4 can be further prevented from retreating in the injection process.
In the present embodiment, referring to fig. 1 and 4 again, a cam follower pressing plate 8 is disposed at a lower portion of the cam follower 6 for stabilizing the cam follower 6, thereby preventing the cam follower 6 from shaking.
The cylinder core-pulling device described in this embodiment can be integrally installed on a die-casting die through a front die core 1 for use, before core pulling, as shown in fig. 1 to 3, an inclined pin part 61 of an inclined pin seat 6 penetrates through an inclined through hole 41 of a sliding block 4 and then is inserted into an insertion slot 31 of a sliding block fixing seat 3, and the inclined pin seat 6 and the sliding block fixing seat 3 jointly play a role in locking the sliding block 4; when core pulling is needed, as shown in fig. 4 to 5, the oil cylinder 2 pulls the taper pin base 6 backwards, the taper pin part 61 of the taper pin base 6 moves backwards to be separated from the slot 31 of the slider fixing base 3, after the taper pin part 61 is separated from the slot 31, the slider 4 drives the mold core 5 to slowly slide downwards along with the movement of the taper pin part 61, and in the process, a rear mold (i.e. a movable mold) of the die casting mold also moves downwards, so that the mold opening and core pulling operation is completed.
From above-mentioned, can see, hydro-cylinder device of loosing core, because taper pin seat 6, slider fixing base 3 and slider 4's unique design for taper pin seat 6 can play the locking effect to slider 4 jointly with slider fixing base 3, consequently, need not additionally to set up and retreat like slider locking mechanism such as hydro-cylinder and can lock slider 4 if the non-slipping spur, thereby can effectively avoid leading to the higher problem of shaping product defective rate because of slider 4 retreats, have simple structure, small, low cost, convenient to use, practicality advantage such as strong.
It is finally necessary to point out here: the above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. The utility model provides a hydro-cylinder device of loosing core for die casting die front mould, includes front mould benevolence, hydro-cylinder, slider fixing base, slider, mold core and taper pin seat, the bottom of front mould benevolence is fixed to hydro-cylinder and slider fixing base located, the slider is installed on the slider fixing base and can be followed vertical direction and slided, the mold core is located the top of slider and vertical activity wears to locate front mould benevolence, the rear end of taper pin seat links to each other its characterized in that with the output of hydro-cylinder: the front end of the taper pin seat is a taper pin part which inclines downwards, the inner side of the slide block fixing seat is provided with a slot which is matched with the taper pin part, a taper through hole with the integral inclination angle of 10-20 degrees penetrates through the slide block, the downward inclination angle of the taper pin part is consistent with the inclination angle of the taper through hole, the taper pin part movably penetrates through the taper through hole and then is detachably inserted into the slot, and a lifting gap is arranged between the taper through hole and the taper pin part.
2. The cylinder core pulling device according to claim 1, characterized in that: the bottom of the front die core is fixedly provided with an oil cylinder fixing seat, and the oil cylinder is fixed at the bottom of the front die core through the oil cylinder fixing seat.
3. The cylinder core pulling device according to claim 1, characterized in that: the top of taper pin seat is equipped with spacing portion, the position that the slider fixing base corresponds spacing portion is equipped with along the spacing groove of fore-and-aft direction horizontal extension, and the length of spacing groove is greater than the length of spacing portion.
4. The cylinder core pulling device according to claim 1, characterized in that: the slider fixing seat is provided with a dovetail groove extending in the vertical direction, and the slider is connected with the slider fixing seat in a sliding mode through the dovetail groove.
5. The cylinder core pulling device according to claim 1, characterized in that: the slider fixing seat and the taper pin part are in 3-5 degrees of oblique insertion fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222503281.5U CN218015716U (en) | 2022-09-21 | 2022-09-21 | Oil cylinder core-pulling device for front die of die-casting die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222503281.5U CN218015716U (en) | 2022-09-21 | 2022-09-21 | Oil cylinder core-pulling device for front die of die-casting die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218015716U true CN218015716U (en) | 2022-12-13 |
Family
ID=84355078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222503281.5U Active CN218015716U (en) | 2022-09-21 | 2022-09-21 | Oil cylinder core-pulling device for front die of die-casting die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218015716U (en) |
-
2022
- 2022-09-21 CN CN202222503281.5U patent/CN218015716U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109501167B (en) | Core-pulling inclined ejection structure and injection mold | |
| CN214773789U (en) | Injection mold super large angle pushes up to one side and takes off back-off mechanism | |
| CN111251548A (en) | Core pulling mechanism of injection mold | |
| CN218015716U (en) | Oil cylinder core-pulling device for front die of die-casting die | |
| CN211891787U (en) | Injection mold core-pulling mechanism with slide self-locking structure | |
| CN207901495U (en) | A kind of precision die structure of slide block insert prior to take-up housing core pulling | |
| CN215359675U (en) | Large-angle straight-ejection inclined core pulling mechanism | |
| CN212094281U (en) | Sliding block core-pulling mechanism in die-casting die | |
| CN113211731A (en) | Double-rod inclined top core-pulling mechanism | |
| CN214111317U (en) | Injection mold with low space occupancy rate | |
| CN211683286U (en) | Core pulling mechanism of injection mold | |
| CN219256334U (en) | Combined demoulding mechanism of injection mould | |
| CN212097386U (en) | Bolt type clamping mechanism | |
| CN208664269U (en) | A kind of car hands shank molding structure | |
| CN218700932U (en) | Front mold sliding block anti-retreating device of injection mold | |
| CN114750374B (en) | Mould structure of multi-angle loose core | |
| CN116141595A (en) | Combined demoulding mechanism of injection mould | |
| CN115846620B (en) | Die casting die with pipe orifice side core pulling structure for automobile support | |
| CN216027990U (en) | Die set | |
| CN114851486B (en) | Large-stroke side core-pulling die structure with rack not separated from gear | |
| CN217454810U (en) | Synchronous ejection drag hook mechanism of mould | |
| CN214353621U (en) | Mold ejection structure | |
| CN218749028U (en) | Supplementary demoulding mechanism of front mould and injection mold | |
| CN116786789B (en) | Die casting die for new energy automobile products | |
| CN217621965U (en) | Guiding and resetting device of injection mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |