CN219746246U - Hot core box die with chiller fixing function - Google Patents
Hot core box die with chiller fixing function Download PDFInfo
- Publication number
- CN219746246U CN219746246U CN202320991903.5U CN202320991903U CN219746246U CN 219746246 U CN219746246 U CN 219746246U CN 202320991903 U CN202320991903 U CN 202320991903U CN 219746246 U CN219746246 U CN 219746246U
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- Prior art keywords
- module
- chill
- core
- chiller
- cavity
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- 239000004576 sand Substances 0.000 claims abstract description 25
- 238000006073 displacement reaction Methods 0.000 claims abstract description 11
- 238000003825 pressing Methods 0.000 claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 7
- 239000007924 injection Substances 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Abstract
The utility model relates to a hot core box die with a chiller fixing function, and belongs to the technical field of casting. In order to solve the problem that when a hot core box die is used for manufacturing a core first and then placing a chill, the chill and the core are combined with gaps, or the chill is placed in the die to manufacture the core together, the problem that the mold core molding quality is low due to displacement of the chill caused by sand injection pressure exists. The mold comprises a first module, a second module, a chill and a core jacking device, wherein a cavity of a mold core is formed between the first module and the second module after the first module and the second module are assembled; the hot core box mould is provided with a sand shooting port; a chill is arranged in the cavity; the die cavity at the position of the chiller is provided with a mounting groove; the chiller is arranged in the mounting groove to limit the displacement of the chiller along the horizontal direction; the core ejecting device is arranged in the cavity, and one end of the core ejecting device is provided with an ejector rod which is arranged in the cavity in a sliding way along the radial direction of the chill and abuts against the chill so as to limit the displacement of the chill along the radial direction. The utility model can realize core making of the chill and the core together, and the core has high molding quality.
Description
Technical Field
The utility model relates to a hot core box mold with a chill fixing function, and belongs to the technical field of casting molds.
Background
The hot core box core making process includes injecting sand material compounded with casting sand, thermosetting resin and curing agent into core box with heater to heat the core box to 180-250 deg.c, and setting the sand material to harden in short time to form core without stoving in a stoving furnace. Moreover, as long as the surface layer of the sand core is hardened by 5-10 mm, the sand core can be taken out from the core box, and the core sand in the central part can harden the residual sand by itself under the action of the residual heat and the heat released by the hardening reaction, thereby providing a very effective method for rapidly producing the medium-small sand core with high dimensional accuracy (the maximum wall thickness of the sand core is generally 50-75 mm).
Part of the mold cores are required to be provided with the chill due to the requirement of process design, such as increasing chilling effect, the mold cores are required to be provided with the chill according to a conventional manufacturing method, and then the mold cores are required to be provided with the cavities for placing the chill, and because the shape of the chill is complex and cannot be attached to the shape of the cavities, gaps exist between the chill and the mold cores, and when molten iron pouring is performed in the later stage, molten iron can be drilled in from the gaps, so that adhesion between the molten iron and the chill occurs gradually, and the chill cannot be removed in the later stage. In the prior art, during core making, a chill is added in a core mold, and then sand is shot to prepare a core and chill combined body, so that no gap is reserved between the core and the chill, but because the chill is not provided with a fixing device in a cavity, when sand is shot, the chill can displace due to sand shooting pressure, so that the molding quality of the core is low, and even the core is scrapped, a hot core box mold is needed, so that the problem that when the hot core box mold is used for firstly preparing the core and then placing the chill, the chill and the core are combined to form a gap, or the chill is placed in the mold to be made together, and the problem that the molding quality of the core is low due to displacement of the sand shooting pressure exists.
Disclosure of Invention
The utility model provides a hot core box die with a chiller fixing function, which solves the technical problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a hot core box die with a chiller fixing function comprises a first module, a second module, a chiller and a core jacking device, wherein a cavity matched with a core in shape is formed between the first module and the second module after the first module and the second module are assembled; the hot core box mould is provided with a sand shooting port; a chill is arranged in the cavity; and the die cavity at the position of the chill is provided with a mounting groove; the chiller is arranged in the mounting groove to limit the displacement of the chiller along the horizontal direction; the core ejecting device is arranged in the cavity, and one end of the core ejecting device is provided with an ejector rod which is arranged in the cavity in a sliding way along the radial direction of the chill and abuts against the chill so as to limit the displacement of the chill along the radial direction.
Specifically, the hot core box die is of an upper die closing structure and a lower die closing structure; the first module is positioned on the upper side and is used as a movable die, and the second module is positioned on the lower side and is used as a fixed die; the first module and the second module are respectively provided with a sub-cavity, and after the first module and the second module are assembled, the sub-cavities of the first module and the second module form a cavity.
Specifically, the chill is installed in the sub-cavity of the second module, and the core jacking device is installed in the sub-cavity of the first module.
Specifically, a plurality of positioning pins are arranged at the position of the second module where the chiller is arranged; the plurality of locating pins are arranged at intervals along the outer side of the chill, and are enclosed into a mounting cavity matched with the shape of the chill to form a mounting groove.
Specifically, a magnetic piece is arranged at the bottom of the mounting groove and used for fixing the chiller.
Specifically, the core jacking device comprises a pressing plate, a spring and a push rod; the first module is provided with a push rod mounting hole, one end of the push rod mounting hole is provided with a pressing plate, the other end of the push rod mounting hole extends towards the direction of the sub-type cavity, and the end part of the hole is provided with a through hole communicated with the sub-type cavity; the ejector rod is slidably arranged in the ejector rod mounting hole, one end of the ejector rod penetrates through the through hole and extends into the sub-type cavity to form an abutting end abutting against the chill, and a spring is arranged between one side end part of the ejector rod away from the abutting end and the pressing plate. After the first module and the second module are assembled, the abutting end of the ejector rod abuts against the chill along the radial direction, the ejector rod radially limits and fixes the chill through the elastic force of the spring, and the chill cannot be displaced due to sand injection pressure when sand injection is ensured.
Specifically, the magnetic member is a high-temperature magnet.
Specifically, the inner side of the ejector rod mounting hole is provided with an internal thread, the outer side of the pressing plate is provided with an external thread, and the pressing plate is in threaded connection with the internal thread through the external thread and is mounted in the ejector rod mounting hole. The device is arranged at different positions of the ejector rod mounting hole through the pressing plate, so that the preset pressure of the spring is realized, the device is suitable for chill of different materials or different sand shooting pressures, and the application range of the die is improved.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the chiller mounting groove is arranged in the die cavity and is used for mounting the chiller, and meanwhile, the high-temperature magnet is arranged in the mounting groove, so that the chiller is limited in the horizontal direction. Simultaneously set up the top core device, radially support in the chill through the ejector pin to realize radially spacing the chill, realize that the chill is placed in the stability of die cavity, avoid when the core making, the chill takes place the displacement because of penetrating sand pressure, improves core shaping quality, and the gapless between core and the chill of making, during the follow-up pouring of core, foundry goods and chill are non-adhesive, and foundry goods yields is high.
Drawings
Fig. 1 is a front view of the structure of a hot box mold with a chill fixing function of the present embodiment;
fig. 2 is a schematic structural diagram of a second module of the hot box mold with the chiller fixing function according to the present embodiment.
In the figure: 1. a first module; 2. A second module; 3. a chill; 4. a cavity; 5. a sand injection port; 6. a push rod; 7. a positioning pin; 8. a magnetic member; 9. a pressing plate; 10. and (3) a spring.
Detailed Description
The utility model will be further elucidated with reference to the drawings in the embodiments of the utility model.
Referring to fig. 1-2, the embodiment discloses a hot core box mold with a chiller fixing function, which comprises a first module 1, a second module 2, a chiller 3 and a core jacking device, wherein after the first module 1 and the second module 2 are assembled, a cavity 4 matched with the shape of a core is formed between the first module 1 and the second module 2; the hot core box mould is provided with a sand shooting port 5; a chill 3 is arranged in the cavity 4; and the die cavity at the position of the chill is provided with a mounting groove; the chiller 3 is installed in the installation groove to restrict displacement of the chiller in a horizontal direction; the core ejecting device is arranged in the cavity 4, one end of the core ejecting device is provided with an ejector rod 6, and the ejector rod 6 is arranged in the cavity in a sliding way along the radial direction of the chill and abuts against the chill 3 so as to limit the displacement of the chill along the radial direction.
Further, the hot core box die is of an upper die closing structure and a lower die closing structure; the first module 1 is positioned on the upper side and is used as a movable die, and the second module 2 is positioned on the lower side and is used as a fixed die; the first module 1 and the second module 2 are respectively provided with a sub-cavity, and after the first module 1 and the second module 2 are assembled, the sub-cavities of the first module 1 and the second module 2 form a cavity 4.
Further, the chiller 3 is installed in the sub-cavity of the second module 2, and the core jacking device is installed in the sub-cavity of the first module 1.
Further, a plurality of positioning pins 7 are arranged at the position of the second module 2 where the chiller is arranged; the plurality of locating pins are arranged at intervals along the outer side of the chill, and are enclosed into a mounting cavity matched with the shape of the chill to form a mounting groove.
Further, a magnetic piece 8 is arranged at the bottom of the mounting groove and is used for fixing the chill 3.
Further, the core ejecting device comprises a pressing plate 9, a spring 10 and an ejector rod 6; the first module 1 is provided with a push rod mounting hole, one end of the push rod mounting hole is provided with a pressing plate 9, the other end extends towards the direction of the sub-type cavity, and the end part of the hole is provided with a through hole communicated with the sub-type cavity; the ejector rod is slidably arranged in the ejector rod mounting hole, one end of the ejector rod penetrates through the through hole and extends into the die cavity to form an abutting end abutting against the chill, and a spring 10 is arranged between the end part of one side of the ejector rod 6 away from the abutting end and the pressing plate 9.
Further, the magnetic member 8 is a high temperature magnet.
Further, the inner side of the ejector rod mounting hole is provided with an internal thread, the outer side of the pressing plate 9 is provided with an external thread, and the pressing plate is in threaded connection with the internal thread through the external thread and is mounted in the ejector rod mounting hole.
Working principle: 1. before the hot core box die with the chiller fixing function is used, a locating pin is firstly installed on a second module serving as a fixed die, the locating pin is arranged according to the appearance shape of a chiller, a chiller installation groove is formed in a surrounding mode, holes are formed in the groove bottom of the installation groove, and a high-temperature magnet installation hole is formed, and a high-temperature magnet is placed in the hole. And then punching the first module serving as the movable mould to form a mandril mounting hole, and punching the mandril mounting hole again at one side facing the sub-cavity to form a through hole for mounting the mandril. Tapping is then performed in the post rod mounting hole to form an internal thread. Then, an external thread is arranged on the outer side of the pressing plate, and the pressing plate is installed in the ejector rod installation hole, wherein attention is paid to the fact that a spring is installed between the pressing plate and the ejector rod. Finally, according to the type of chill and sand shooting pressure, the spring force of the spring is adjusted, and the adjustment work of the hot core box die is completed by adjusting the screwing-in position of the pressing plate in the ejector rod mounting hole.
2. When the hot core box mold with the chiller fixing function is used, cleaning of sub-cavities of the first module and the second module is firstly carried out, then mold closing and fixing are carried out, then the mold is heated to the sand injection temperature, the sand injection procedure is carried out through the sand injection port, and after the precoated sand is cooled and solidified, the mold is opened, so that the core and chiller assembly can be obtained. It should be noted that, because the abutting end of the ejector rod is located in the cavity during sand shooting, a space occupying hole of the abutting end of the ejector rod exists on the obtained combination of the core and the chill, and a sealing process of the space occupying hole is required before a molten iron pouring process. The above is the core making process of the hot core box mold with the chiller fixing function of the embodiment.
While the embodiments of the present utility model have been described in detail with reference to the examples, the present utility model is not limited to the above embodiments, and it will be apparent to those skilled in the art that various equivalent changes and substitutions can be made therein without departing from the principles of the present utility model, and such equivalent changes and substitutions should also be considered to be within the scope of the present utility model.
Claims (8)
1. The hot core box die with the chiller fixing function comprises a first module, a second module, a chiller and a core jacking device, wherein a cavity matched with the shape of a core is formed between the first module and the second module after the first module and the second module are assembled; the hot core box mould is provided with a sand shooting port; the method is characterized in that: the cooling iron is arranged in the cavity; and the die cavity at the position of the chill is provided with a mounting groove; the chiller is arranged in the mounting groove so as to limit the displacement of the chiller along the horizontal direction; the core jacking device is arranged in the cavity, one end of the core jacking device is provided with a push rod, and the push rod is arranged in the cavity in a sliding way along the radial direction towards the chill and abuts against the chill so as to limit the displacement of the chill along the radial direction.
2. The hot box mold with the chiller fixing function according to claim 1, wherein: the hot core box die is of an upper die closing structure and a lower die closing structure; the first module is positioned on the upper side and is used as a movable die, and the second module is positioned on the lower side and is used as a fixed die; the first module and the second module are respectively provided with a sub-cavity, and after the first module and the second module are assembled, the sub-cavities of the first module and the second module form the cavity.
3. The hot box mold with the chiller fixing function according to claim 2, wherein: the chiller is arranged in the sub-cavity of the second module, and the core jacking device is arranged in the sub-cavity of the first module.
4. A hot box mold with a chill fixing function according to claim 3, wherein: a plurality of positioning pins are arranged at the position of the second module where the chiller is arranged; the plurality of locating pins are arranged at intervals along the outer side of the chill, and are enclosed into a mounting cavity which is matched with the shape of the chill, so that the mounting groove is formed.
5. The hot box mold with the chiller fixing function according to claim 4, wherein: and a magnetic piece is arranged at the bottom of the mounting groove and used for fixing the chiller.
6. The hot box mold with the chiller fixing function according to claim 2, wherein: the core jacking device comprises a pressing plate, a spring and a push rod; the first module is provided with a push rod mounting hole, one end of the push rod mounting hole is provided with a pressing plate, the other end of the push rod mounting hole extends towards the direction of the sub-type cavity, and the end part of the hole is provided with a through hole communicated with the sub-type cavity; the ejector rod is slidably arranged in the ejector rod mounting hole, and one end of the ejector rod penetrates through the through hole and extends into the sub-type cavity to form an abutting end abutting against the chill; the spring is arranged between the end part of one end of the ejector rod far away from the abutting end and the pressing plate.
7. The hot box mold with the chiller fixing function according to claim 5, wherein: the magnetic piece is a high-temperature magnet.
8. The hot box mold with the chiller fixing function according to claim 6, wherein: the inner side of the ejector rod mounting hole is provided with an internal thread, the outer side of the pressing plate is provided with an external thread, and the pressing plate is in threaded connection with the internal thread through the external thread and is mounted in the ejector rod mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320991903.5U CN219746246U (en) | 2023-04-27 | 2023-04-27 | Hot core box die with chiller fixing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320991903.5U CN219746246U (en) | 2023-04-27 | 2023-04-27 | Hot core box die with chiller fixing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219746246U true CN219746246U (en) | 2023-09-26 |
Family
ID=88081941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320991903.5U Active CN219746246U (en) | 2023-04-27 | 2023-04-27 | Hot core box die with chiller fixing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219746246U (en) |
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2023
- 2023-04-27 CN CN202320991903.5U patent/CN219746246U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231123 Address after: 213000 Block C, No. 258, Wuyi Road, economic development zone, Changzhou City, Jiangsu Province Patentee after: CRRC CHANGZHOU AUTO PARTS CO.,LTD. Patentee after: CHANGZHOU LANGRUI CASTING Co.,Ltd. Address before: 213025 Block C, No. 258, Wuyi Road, economic development zone, Changzhou City, Jiangsu Province Patentee before: CRRC CHANGZHOU AUTO PARTS CO.,LTD. |