CN112548065A - Cooling core puller - Google Patents
Cooling core puller Download PDFInfo
- Publication number
- CN112548065A CN112548065A CN202011419526.5A CN202011419526A CN112548065A CN 112548065 A CN112548065 A CN 112548065A CN 202011419526 A CN202011419526 A CN 202011419526A CN 112548065 A CN112548065 A CN 112548065A
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- China
- Prior art keywords
- core
- pulling
- cooling water
- cooling
- water channel
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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
- B22D17/2218—Cooling or heating equipment for dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a cooling core puller, which comprises: a core-pulling fixed seat; the core pulling body is detachably connected with the core pulling fixing seat; one end of the core pulling body, which is far away from the core pulling fixing seat, is a molding end, the molding end comprises an outer molding part and an inner molding part, the outer molding part surrounds the inner molding part, and a gap is formed between the outer molding part and the inner molding part; this internal first cooling water passageway that is equipped with of loosing core, first cooling water passageway is from the installation end of keeping away from the type of moulding end of the body of loosing core, and the installation end of the body of loosing core is finally returned to through interior type of moulding portion, the type of moulding portion outward in proper order to this internal double-deck cooling water passageway of inside and outside formation of loosing core makes the cooling water evenly cool off the body of loosing core at the internal circulation of loosing core. According to the invention, the inner and outer double-layer structure is adopted according to the molding end of the core-pulling body, and the inner and outer double-layer cooling water channels are arranged in the core-pulling body, so that the cooling effect of the workpiece is increased, and the problems of surface sintering and workpiece expansion and clamping are solved.
Description
Technical Field
The invention relates to the field of die-casting molds, in particular to a cooling core puller.
Background
In the field of die-casting molds, lightweight aluminum alloy castings are increasingly popularized, and in the production process of the lightweight aluminum alloy castings, at least the following problems exist in the prior art:
the lightweight aluminum alloy casting cannot be stably and efficiently produced, specifically, in aluminum alloy die casting, the temperature of aluminum alloy molten metal when impacting the core-pulling body is about 630 ℃, the speed is 50m/s, and when the wall thickness of an aluminum alloy product around the core-pulling body is thicker, the heat brought to the core-pulling body is large; when an aluminum alloy product is formed, the temperature of the core-pulling body rises very quickly, and rises from 150 ℃ to 400 ℃ within 15 seconds of the contact with the aluminum alloy; under such severe conditions of high temperature and high impact, the core puller is extremely easy to damage: the surface of the core-pulling body is cracked and sintered, and the core-pulling body is blocked and cannot be pulled out due to the fact that the size of the core-pulling body after thermal expansion is increased and the gap between the core-pulling guide sleeve is reduced.
In view of the above, it is necessary to develop a cooling core puller to solve the above problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention mainly aims to provide a cooling core puller, which has an inner-outer double-layer structure according to the molding end of a core puller body, and a cooling water channel with an inner layer and an outer layer is arranged in the core puller body, so that the cooling effect of the core puller is improved, and the problems of surface sintering and expansion blocking of the core puller are solved.
To achieve the above object and other advantages in accordance with the present invention, there is provided a cooling core puller including:
a core-pulling fixed seat;
the core pulling body is detachably connected with the core pulling fixing seat;
one end of the core pulling body is a mounting end, and the core pulling body is mounted and connected with the core pulling fixing seat;
one end of the core pulling body, which is far away from the core pulling fixing seat, is a molding end, the molding end comprises an outer molding part and an inner molding part, the outer molding part surrounds the inner molding part, and a gap is formed between the outer molding part and the inner molding part;
this internal first cooling water passageway that is equipped with of loosing core, first cooling water passageway is from the installation end of keeping away from the type of moulding end of the body of loosing core, and the installation end of the body of loosing core is finally returned to through interior type of moulding portion, the type of moulding portion outward in proper order to this internal double-deck cooling water passageway of inside and outside formation of loosing core makes the cooling water evenly cool off the body of loosing core at the internal circulation of loosing core.
Furthermore, one end of the core-pulling fixed seat is a fixed end, and the other end of the core-pulling fixed seat is a transmission end; the mounting end of the core pulling body is detachably connected with the fixed end of the core pulling fixed seat;
the fixed end of the core-pulling fixed seat is provided with a fixed seat mounting hole;
the core pulling body mounting end is provided with a body mounting hole;
the fixing seat mounting hole is matched with the body mounting hole;
the body mounting hole and the fixing seat mounting hole are connected through a screw.
Furthermore, a cooling water interface is arranged on the periphery of the transmission end of the core-pulling fixed seat;
and a second cooling water channel is arranged in the core-pulling fixing seat, one end of the second cooling water channel is connected with the first cooling water channel, and the other end of the second cooling water channel is communicated with a cooling water interface.
Furthermore, a cooling connecting rod is arranged between the first cooling water channel and the second cooling water channel; the first cooling water channel and the second cooling water channel are connected through a cooling connecting rod.
Further, the periphery of the cooling connecting rod is radially provided with a plurality of sealing rings, and the sealing rings are made of fluorine rubber.
Furthermore, the installation end of the core pulling body is provided with a limiting part, so that the core pulling body is prevented from rotating during installation, and the installation of the core pulling body and the accurate butt joint of the cooling water channel are facilitated.
Further, the surface of the core pulling body is coated with a TiC layer.
Further, the first cooling water channel is 3-5mm away from the surface.
Furthermore, the core pulling body is made of a DIEVAR material.
Further, the inner molding part comprises a central molding insert, and the outer molding part comprises a plurality of outer molding inserts surrounding the central molding insert.
One of the above technical solutions has the following advantages or beneficial effects:
according to the cooling core-pulling device, the cooling water channel which sequentially passes through the core-pulling body mounting end, the inner molding part and the outer molding part and is terminated at the core-pulling body mounting end is arranged in the core-pulling body, so that an inner and outer double-layer cooling water channel is arranged in the core-pulling body, the cooling effect of the cooling core-pulling device is increased, and the problems of surface sintering and thermal expansion blocking of the cooling core-pulling device are solved;
the surface of the core pulling body is coated with a TiC layer; the working temperature can reach 900 ℃, the surface hardness of the cooling core puller reaches HV1100, and the problem of early cracking of the surface of the cooling core puller is solved;
the core-pulling body is made of a DIEVAR material and has excellent toughness and good thermal strength, so that the cooling core-pulling device has excellent hot crack resistance and integral cracking resistance;
the installation end of the core pulling body is provided with a limiting part, so that the core pulling body is prevented from rotating during installation, the installation of the core pulling body 10 is facilitated, and the accurate butt joint of the cooling water channel is ensured;
the periphery of the cooling connecting rod, which is connected with a cooling water channel between the core pulling body and the core pulling fixing seat, is radially provided with a sealing ring, and two ends of the cooling connecting rod are respectively provided with two sealing rings; the sealing ring is made of fluorine rubber to prevent water leakage among the core pulling body, the core pulling fixing seat and the cooling connecting rod;
this application will be loosed the core ware and divide into the body of loosing core and the fixing base of loosing core that can dismantle the connection, only need worsen the body of loosing core when the body of loosing core damages, avoid holistic change, reduced use cost.
Drawings
Fig. 1 is a structural view of a cooling core puller according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a cooling core puller according to an embodiment of the present invention;
FIG. 3 is a three-dimensional structural view of a core body in the cooling core puller according to an embodiment of the invention;
FIG. 4 is a three-dimensional structural view of a core holder of the cooling core puller according to an embodiment of the invention;
in the figure: 10-a core-pulling body; 11-a first cooling water channel; 12-an outer mold section; 13-inner mold part; 14-body mounting holes; (ii) a 15-a limiting part; 20-a core-pulling fixed seat; 21-a second cooling water channel; 22-cooling water interface; 24-a fixing seat mounting hole; 30-cooling the connecting rod; 31-sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.
In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc., are defined with respect to the configurations shown in the respective drawings, and in particular, "height" corresponds to a dimension from top to bottom, "width" corresponds to a dimension from left to right, "depth" corresponds to a dimension from front to rear, which are relative concepts, and thus may be varied accordingly depending on the position in which it is used, and thus these or other orientations should not be construed as limiting terms.
Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.
According to an embodiment of the present invention, as shown in fig. 1 to 4, it can be seen that the cooling core puller includes:
the core pulling device comprises a core pulling body 10 and a core pulling fixed seat 20;
the core-pulling body 10 is of a columnar structure, one end of the core-pulling body is a molding end, and the other end of the core-pulling body is an installation end; the molding end comprises an outer molding part 12 and an inner molding part 13, the outer molding part 12 surrounds the inner molding part 13, and a gap is formed between the outer molding part 12 and the inner molding part 13; the mounting end is provided with two body mounting holes 14, and the body mounting holes 14 are used for mounting the core-pulling body 10; the core-pulling body 10 is internally provided with a first cooling water channel 11, the mounting end is provided with two first cooling water channels 11, the first cooling water channel 11 sequentially passes through the mounting end of the core-pulling body 10, an outer molding part 12, an inner molding part 13 and the mounting end of the core-pulling body 10 so as to form an inner and outer double-layer cooling water channel in the core-pulling body, and the cooling water uniformly cools the core-pulling body (10) in the internal circulation of the core-pulling body (10).
The first cooling water channel 11 is 3-5mm away from the surface of the workpiece, so that the cooling effect of the cooling core puller is improved, and the problems of surface sintering and thermal expansion blocking of the cooling core puller are solved; the mounting end of the core pulling body 10 is provided with a limiting part 15, the limiting part 15 is a concave part in the mounting end of the core pulling body 10, and rotation of the core pulling body 10 during mounting is avoided, so that the core pulling body 10 is mounted and accurate butt joint of a cooling water channel is ensured; the core-pulling body 10 adopts a 3D printing process, the core-pulling body 10 is made of a DIEVAR material, and the core-pulling body has excellent toughness and good thermal strength, so that the cooling core-pulling device has excellent thermal crack resistance and integral cracking resistance; the surface of the core pulling body 10 is coated with a TiC layer, the working temperature can reach 900 ℃, the surface hardness of the cooling core pulling device reaches HV1100, and the problem of early cracking of the surface of the cooling core pulling device is solved.
One end of the core-pulling fixed seat 20 is a fixed end, and the other end is a transmission end; the transmission end of the core-pulling fixed seat 20 is in transmission connection with a transmission part to complete core-pulling action in the die-casting process, and the transmission part preferably adopts an oil cylinder; the mounting end of the core pulling body (10) is detachably connected with the fixed end of the core pulling fixed seat (20); the fixed end is provided with two fixed seat mounting holes 24, the fixed seat mounting holes 24 are matched with the mounting end mounting holes of the core pulling body 10 so as to be used for connecting the core pulling body 10 with the core pulling fixed seat 20, the core pulling body 10 is connected with the core pulling fixed seat 20 through screws, the cost of the core pulling device is reduced, and the core pulling body 10 is convenient to replace when the core pulling body 10 is damaged, so that the core pulling fixed seat 20 can be reused; the upper part of the core-pulling fixed seat 20 is provided with two cooling water interfaces 22; a second cooling water channel 21 is arranged in the core-pulling fixing seat 20, one end of the second cooling water channel 21 is connected with a cooling water interface 22, and the other end of the second cooling water channel 21 is matched with the first cooling water channel 11; the cooling water channel between the core pulling body 10 and the core pulling fixing seat 20 is connected through a cooling connecting rod 30, and the cooling connecting rod 30 is of a hollow columnar structure; the periphery of the cooling connecting rod 30 is radially provided with a sealing ring 31, and two ends of the cooling connecting rod 30 are respectively provided with two sealing rings 31; the sealing ring 31 is made of fluorine glue to prevent water leakage among the core pulling body 10, the core pulling fixing seat 20 and the cooling connecting rod 30; the shape of the fixed end is matched with that of the mounting end of the core-pulling body 10, so that the core-pulling body 10 is prevented from rotating in the core-pulling fixed seat 20, and the positions of the cooling water channel and the mounting hole are convenient to align during mounting.
This application will be loosed the core ware and divide into solitary body 10 of loosing core and the fixing base 20 of loosing core, only need worsen when the body 10 of loosing core damages loose core body 10, avoid holistic change, reduced use cost.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. A cooling core puller, comprising:
a core-pulling fixed seat (20);
the core-pulling fixing seat (20) is detachably connected with the core-pulling body (10);
one end of the core pulling body (10) is a mounting end, and the core pulling body (10) is mounted and connected with the core pulling fixed seat (20);
one end, far away from the core-pulling fixing seat (20), of the core-pulling body (10) is a molding end, the molding end comprises an outer molding part (12) and an inner molding part (13), the outer molding part (12) surrounds the inner molding part (13), and a gap is formed between the outer molding part and the inner molding part;
be equipped with first cooling water channel (11) in body (10) of loosing core, first cooling water channel (11) are followed the installation end of keeping away from the type of moulding end of body (10) of loosing core and are held, are moulded type portion (13), are moulded type portion (12) outward in proper order in the interior, finally return the installation end of body (10) of loosing core to this internal double-deck cooling water channel inside and outside forming of loosing core makes the cooling water evenly cool off body (10) of loosing core in body (10) inner loop of loosing core.
2. The cooling core puller according to claim 1, characterized in that one end of the core puller fixing seat (20) is a fixing end, and the other end is a transmission end; the mounting end of the core pulling body (10) is detachably connected with the fixed end of the core pulling fixed seat (20);
the fixed end of the core-pulling fixed seat (20) is provided with a fixed seat mounting hole (24);
the mounting end of the core pulling body (10) is provided with a body mounting hole (14);
the fixing seat mounting hole (24) is matched with the body mounting hole (14);
the body mounting hole (14) and the fixing seat mounting hole (24) are connected through a screw.
3. The cooling core puller according to claim 2, characterized in that a cooling water interface (22) is arranged on the periphery of the transmission end of the core pulling fixing seat (20);
and a second cooling water channel (21) is arranged in the core-pulling fixing seat (20), one end of the second cooling water channel (21) is connected with the first cooling water channel (11), and the other end of the second cooling water channel is communicated with a cooling water interface (22).
4. The cooling core puller according to claim 3, characterized in that a cooling connecting rod (30) is arranged between the first cooling water channel (11) and the second cooling water channel (21); the first cooling water passage (11) and the second cooling water passage (21) are connected by a cooling connecting rod (30).
5. The cooling core puller according to claim 4, wherein a plurality of sealing rings (31) are radially arranged on the periphery of the cooling connecting rod (30), and the sealing rings (31) are made of fluorine glue.
6. The cooling core puller according to claim 2, characterized in that the mounting end of the core pulling body (10) is provided with a limiting part (15) to prevent the core pulling body (10) from rotating during mounting, so as to facilitate the mounting of the core pulling body (10) and ensure accurate butt joint of the cooling water channel.
7. The cooling core puller according to claim 1, characterized in that the surface of the core puller body (10) is coated with a TiC layer.
8. The cooling core puller according to claim 1, characterized in that the first cooling water channel (11) is 3-5mm from the surface.
9. The cooling core puller according to claim 1, characterized in that the core body (10) is made of a DIEVAR material.
10. The cooling core puller according to claim 1, characterized in that the inner mold section (13) comprises a central mold insert and the outer mold section (12) comprises a plurality of outer mold inserts surrounding the central mold insert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011419526.5A CN112548065B (en) | 2020-12-07 | 2020-12-07 | Cooling core puller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011419526.5A CN112548065B (en) | 2020-12-07 | 2020-12-07 | Cooling core puller |
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| Publication Number | Publication Date |
|---|---|
| CN112548065A true CN112548065A (en) | 2021-03-26 |
| CN112548065B CN112548065B (en) | 2022-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011419526.5A Active CN112548065B (en) | 2020-12-07 | 2020-12-07 | Cooling core puller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115709271A (en) * | 2023-01-09 | 2023-02-24 | 宁波斯贝科技股份有限公司 | Fixed die core-pulling anti-locking device and method for die-casting die and storage medium |
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| CN211614286U (en) * | 2019-12-13 | 2020-10-02 | 珠海嵘泰有色金属铸造有限公司 | Core-pulling mould |
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| JPH0952162A (en) * | 1995-08-16 | 1997-02-25 | Toyota Motor Corp | Cooling structure for casting-through pin |
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| CN115709271A (en) * | 2023-01-09 | 2023-02-24 | 宁波斯贝科技股份有限公司 | Fixed die core-pulling anti-locking device and method for die-casting die and storage medium |
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| Publication number | Publication date |
|---|---|
| CN112548065B (en) | 2022-10-14 |
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