CN220329949U - Cooling demoulding structure based on die casting die - Google Patents
Cooling demoulding structure based on die casting die Download PDFInfo
- Publication number
- CN220329949U CN220329949U CN202321979495.8U CN202321979495U CN220329949U CN 220329949 U CN220329949 U CN 220329949U CN 202321979495 U CN202321979495 U CN 202321979495U CN 220329949 U CN220329949 U CN 220329949U
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- Prior art keywords
- cooling
- demolding
- inner rod
- liquid
- push
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- 238000001816 cooling Methods 0.000 title claims abstract description 74
- 238000004512 die casting Methods 0.000 title claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 65
- 239000000110 cooling liquid Substances 0.000 claims abstract description 28
- 230000007704 transition Effects 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 238000010992 reflux Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model provides a cooling demoulding structure based on a die casting die, which comprises the following components: the mold comprises a mold core, a slide block and a demolding assembly, wherein the demolding assembly comprises a demolding push block and a plurality of cooling push rods. The demolding push block is arranged in the mold core, a cooling pipeline, a reflux pipeline and a stepped hole matched with the cooling push rod are arranged in the demolding push block, the stepped hole is provided with a liquid inlet part and a liquid outlet part, and the liquid inlet part is communicated with the cooling pipeline; the cooling push rod comprises an inner rod and an outer tube, the outer tube is sleeved on the inner rod, a liquid draining channel is enclosed between the inner wall of the outer tube and the outer wall of the inner rod, and the inner rod is of a hollow structure. The demolding pushing block is integrally lifted to push the shell, so that the stressed area is increased, and the damage to products in the demolding process is avoided; the cooling liquid is injected into the demolding pushing block from the inner rod and flows out from the outer tube, and the injection and the discharge of the cooling liquid are carried out at the cooling pushing rod, so that the space utilization rate is improved; and a cooling loop matched with the cooling push rod is arranged in the demoulding push block, so that the entry point of cooling liquid is increased, and the cooling effect of the demoulding push block is improved.
Description
Technical Field
The utility model relates to the field of die casting, in particular to a cooling demoulding structure based on a die casting die.
Background
Die casting, i.e. the way in which molten metal is cooled and shaped when it is poured into the cavity of a die casting mold, is commonly used in mass production of metal parts of complex shape. When the die-casting product is manufactured, a cooling structure is arranged in the die to assist the molten metal to be cooled and molded.
As shown in fig. 1, the aluminum housing 20 has an end cover 21 provided with a mounting structure for being matched with other components, which results in that the end cover 21 is different in thickness, deformation is easily caused by uneven cooling on the end cover 21 in the die casting process, the die casting quality of the aluminum housing 20 is reduced, and when the end cover 21 is demolded by using the ejector pins, the structure at the end cover 21 is easily damaged due to small contact area of the ejector pins, so that the yield of the conventional die casting die in manufacturing the aluminum housing 20 is low.
Therefore, it is necessary to improve the cooling effect on the position of the end cap 21 in the existing die casting die and optimize the demolding structure to avoid crushing the product during demolding.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a cooling demoulding structure based on a die casting die, which improves the cooling effect of the die casting die on molten metal, increases the stress area and improves the demoulding success rate of products.
The aim of the utility model is realized by the following technical scheme:
a cooling and demolding structure based on a die casting mold, comprising: the device is characterized in that the demoulding assembly comprises a demoulding push block and a plurality of cooling push rods;
the demolding push block is arranged in the mold core, the slide block is arranged towards the demolding push block, a gap between the slide block and the demolding push block is a region for molding an end cover of the shell, and the demolding push block is used for pushing the shell to be separated from the mold core;
the demolding pushing block is internally provided with a cooling pipeline, a backflow pipeline and a stepped hole matched with the cooling pushing rod, the stepped hole is provided with a liquid inlet part and a liquid outlet part, the liquid inlet part is communicated with the cooling pipeline, and the liquid outlet part is communicated with the backflow pipeline;
the cooling push rod comprises an inner rod and an outer tube, the outer tube is sleeved on the inner rod, a liquid discharge channel is formed between the inner wall of the outer tube and the outer wall of the inner rod in a surrounding mode, a plurality of through holes are formed in the side wall of the outer tube and used for communicating the liquid discharge channel with the liquid discharge part, the inner rod is of a hollow structure, and the inner rod is communicated with the liquid inlet part.
In one embodiment, the through holes are kidney-shaped holes, and the plurality of through holes are distributed in a circumferential array with the inner rod as a center.
In one embodiment, an insulating layer is provided on the outer wall of the inner rod.
In one embodiment, the demolding assembly further comprises a follow-up sliding block and a liquid discharge pipe, wherein a first guide hole, a second guide hole and a transition hole are formed in the follow-up sliding block, the transition hole is used for being communicated with the first guide hole and the second guide hole, the outer pipe penetrates through the first guide hole, a cooling liquid outlet is formed in the position, located in the first guide hole, of the outer pipe, the cooling liquid outlet is used for being communicated with the liquid discharge channel and the first guide hole, and the liquid discharge pipe penetrates through the second guide hole.
In one embodiment, the demolding assembly further comprises a lifting plate, and the tail end of the liquid discharge pipe and the tail end of the inner rod are both arranged in the lifting plate.
In one embodiment, the lifting plate is provided with a fixing seat, the tail end of the liquid discharge pipe penetrates through the fixing seat, and the fixing seat is provided with a liquid discharge joint matched with the liquid discharge pipe.
In one embodiment, the lifting plate is provided with a limit sleeve and a sliding block, the limit sleeve is provided with a guide groove, the sliding block is slidably arranged in the guide groove, the tail end of the inner rod is connected with the sliding block, and the sliding block is provided with a liquid inlet connector matched with the inner rod.
In one embodiment, a limit bump is disposed on a wall of the guide groove, and the limit bump is used for abutting against the slider.
In one embodiment, the front end of the inner rod is provided with a threaded portion, and the threaded portion penetrates through the liquid inlet portion.
In one embodiment, a sealing ring is arranged at a position where the end of the outer tube contacts the liquid discharge part.
Above-mentioned cooling drawing of patterns structure based on die casting die has following advantage:
1. the demolding pushing block is integrally lifted to push the shell, so that the stressed area is increased, and the damage to products in the demolding process is avoided;
2. the cooling liquid is injected into the demolding pushing block from the inner rod and flows out from the outer tube, and the injection and the discharge of the cooling liquid are carried out at the cooling pushing rod, so that the space utilization rate is improved;
3. and a cooling loop matched with the cooling push rod is arranged in the demoulding push block, so that the entry point of cooling liquid is increased, and the cooling effect of the demoulding push block is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of an aluminum housing;
FIG. 2 is a schematic diagram showing the cooperation of the components in a cooling and demolding structure based on a die casting mold in a mold clamping state;
FIG. 3 is a schematic diagram showing the cooperation of the components in a cooling and demolding structure based on a die casting mold when demolding a product;
FIG. 4 is a schematic view of the construction of a stripper assembly;
FIG. 5 is a schematic cross-sectional view of the stripper assembly of FIG. 4;
FIG. 6 is a schematic diagram of a cooling circuit within a stripper shoe;
fig. 7 is a schematic diagram of a cooling pushrod in a disassembled state.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 2 and 4, the present utility model provides a cooling demolding structure 10 based on a die casting mold, comprising: the mold core 11, the slide block 12 and the demolding assembly 13, wherein the demolding assembly 13 comprises a demolding push block 100 and a plurality of cooling push rods 200.
Referring to fig. 2 and 3, a demolding push block 100 is disposed in a mold core 11, a slide block 12 is disposed towards the demolding push block 100, a gap between the slide block 12 and the demolding push block 100 is a region where an end cover 21 on a housing 20 is formed, and after a die casting mold is opened, the demolding push block 100 pushes the housing 20 to be separated from the mold core 11.
Referring to fig. 5 and 6, a cooling pipe 110, a return pipe 120 and a stepped hole 130 matched with the cooling push rod 200 are arranged in the demolding push block 100, the stepped hole 130 is provided with a liquid inlet portion 131 and a liquid outlet portion 132, the liquid inlet portion 131 is communicated with the cooling pipe 110, and the liquid outlet portion 132 is communicated with the return pipe 120;
referring to fig. 5 and 7, the cooling push rod 200 includes an inner rod 210 and an outer tube 220, the outer tube 220 is sleeved on the inner rod 210, a liquid discharge channel 300 is defined between an inner wall of the outer tube 220 and an outer wall of the inner rod 210, a plurality of through holes 221 are formed in a side wall of the outer tube 220, the through holes 221 are used for communicating the liquid discharge channel 300 with the liquid discharge portion 132, the inner rod 210 is of a hollow structure, and the inner rod 210 is communicated with the liquid inlet portion 131.
Thus, after the cooling push rod 200 is installed in the stepped hole 130, the liquid inlet portion 131 is communicated with the inner cavity of the inner rod 210 and the cooling pipeline 110, and the liquid outlet portion 132 is communicated with the liquid outlet channel 300 and the return pipeline 120, that is, the inner cavity of the inner rod 210, the liquid outlet channel 300, the cooling pipeline 110 and the return pipeline 120 form a cooling loop for cooling the demolding push block 100.
The working principle of the cooling and demolding structure 10 based on the die casting mold is as follows:
when the die casting mold is in the mold-closed state, the demolding push block 100 is embedded in the mold core 11, and the die casting machine injects molten metal into the cavity of the die casting mold.
The cooling liquid flows into the cooling pipe 110 along the inner rod 210 to absorb heat, so that the demolding push block 100 and the end cover 21 are cooled, and the cooling liquid after absorbing heat flows into the return pipe 120, passes through the through hole 221 and enters the liquid discharge channel 300, and the demolding push block 100 is discharged from the liquid discharge channel 300.
After the molten metal is cooled, a shell 20 is formed, the die casting die is opened, the cooling push rod 200 pushes the demoulding push block 100 to rise, the formed shell 20 is pushed up from the die core 11, and after the demoulding operation is completed, the demoulding push block 100 is reset and is returned into the die core 11.
Wherein, the inner rod 210 and the outer tube 220 are matched to concentrate the entering and discharging positions of the cooling liquid on the cooling push rod 200, thereby improving the space utilization rate and providing space conditions for increasing the cooling circuit; the cooling push rod 200 is provided with a plurality of cooling push rods, and the cooling effect is improved by increasing the entry points of the cooling liquid to uniformly cool the demoulding push block 100.
The cooling and demolding structure 10 based on the die casting mold has the following advantages:
1. the demolding pushing block 100 is integrally lifted to push the shell, so that the stressed area is increased, and the product is prevented from being damaged in the demolding process;
2. the cooling liquid is injected into the demoulding push block 100 from the inner rod 210 and flows out from the outer tube 220, and the injection and the discharge of the cooling liquid are carried out at the cooling push rod 200, so that the space utilization rate is improved;
3. the cooling loop matched with the cooling push rod 200 is arranged in the demoulding push block 100, so that the entry point of cooling liquid is increased, and the cooling effect of the demoulding push block 100 is improved.
Referring to fig. 7, in an embodiment, a threaded portion 211 is disposed at a front end of the inner rod 210, and the threaded portion 211 penetrates through the liquid inlet portion 131. A sealing ring 700 is provided at a position where the end of the outer tube 220 contacts the drain portion 132, so that the sealing property between the ejector pad 100 and the cooling push rod 200 is improved, and leakage of the cooling liquid is prevented.
In one embodiment, referring to fig. 7, the through holes 221 are kidney-shaped holes, and the plurality of through holes are distributed in a circumferential array with the inner rod 210 as a center. Thereby increasing the coverage area of the through hole 221, and making it easy for the coolant to flow into the drain channel 300.
Further, an insulating layer is provided on the outer wall of the inner rod 210. In the above embodiment, the cooling liquid entering the demolding push block 100 and the cooling liquid exiting the demolding push block 100 need to flow through the cooling push rod 200, and the heat insulation layer is arranged on the outer side of the inner rod 210, so that the cooling liquid in the liquid discharge channel 300 can be prevented from transferring heat to the cooling liquid in the inner rod 210, and the heat exchange efficiency of the cooling liquid is improved.
In an embodiment, referring to fig. 4 and 5, the demolding assembly 13 further includes a follower slider 400 and a liquid discharge tube 500, wherein the follower slider 400 is provided with a first guide hole 410, a second guide hole 420 and a transition hole 430, the transition hole 430 is used for communicating the first guide hole 410 and the second guide hole 420, the outer tube 220 is penetrated through the first guide hole 410, the position of the outer tube 220 located in the first guide hole 410 is provided with a cooling liquid outlet 222, the cooling liquid outlet 222 is used for communicating the liquid discharge channel 300 and the first guide hole 410, the liquid discharge tube 500 is penetrated through the second guide hole 420, so that the cooling liquid in the liquid discharge channel 300 can flow into the liquid discharge tube 500 through the cooling liquid outlet 222, the transition hole 430 and the second guide hole 420, and the position of the liquid discharge tube 500 is used for discharging the die casting mold, thereby staggering the entry and discharge positions of the cooling liquid.
In one embodiment, referring to fig. 2 and 4, the demolding assembly 13 further includes a lifting plate 600, and the end of the drain pipe 500 and the end of the inner rod 210 are disposed in the lifting plate 600. The lifting plate 600 is provided with a fixing seat 610, the tail end of the liquid discharge pipe 500 is penetrated with the fixing seat 610, and the fixing seat 610 is provided with a liquid discharge joint 611 matched with the liquid discharge pipe 500.
The lifting plate 600 is provided with a limit sleeve 620 and a slide block 630, the limit sleeve 620 is provided with a guide groove 621, the slide block 630 is slidably arranged in the guide groove 621, the tail end of the inner rod 210 is connected with the slide block 630, and the slide block 630 is provided with a liquid inlet connector 631 matched with the inner rod 210.
Further, a limit bump is disposed on a wall of the guide slot 621, and the limit bump is used for abutting against the slider 630 to limit a sliding distance of the slider 630.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. A cooling and demolding structure based on a die casting mold, comprising: the device is characterized in that the demoulding assembly comprises a demoulding push block and a plurality of cooling push rods;
the demolding push block is arranged in the mold core, the slide block is arranged towards the demolding push block, a gap between the slide block and the demolding push block is a region for molding an end cover of the shell, and the demolding push block is used for pushing the shell to be separated from the mold core;
the demolding pushing block is internally provided with a cooling pipeline, a backflow pipeline and a stepped hole matched with the cooling pushing rod, the stepped hole is provided with a liquid inlet part and a liquid outlet part, the liquid inlet part is communicated with the cooling pipeline, and the liquid outlet part is communicated with the backflow pipeline;
the cooling push rod comprises an inner rod and an outer tube, the outer tube is sleeved on the inner rod, a liquid discharge channel is formed between the inner wall of the outer tube and the outer wall of the inner rod in a surrounding mode, a plurality of through holes are formed in the side wall of the outer tube and used for communicating the liquid discharge channel with the liquid discharge part, the inner rod is of a hollow structure, and the inner rod is communicated with the liquid inlet part.
2. The cooling and demolding structure based on a die-casting mold according to claim 1, characterized in that the through holes are kidney-shaped holes, and a plurality of the through holes are distributed in a circumferential array centering on the inner rod.
3. The cooling and demolding structure based on a die-casting mold according to claim 1, characterized in that a heat insulating layer is provided on an outer wall of the inner rod.
4. The cooling demolding structure based on the die casting mold according to claim 1, wherein the demolding assembly further comprises a follow-up sliding block and a liquid discharge pipe, a first guide hole, a second guide hole and a transition hole are formed in the follow-up sliding block, the transition hole is used for being communicated with the first guide hole and the second guide hole, the outer pipe penetrates through the first guide hole, a cooling liquid outlet is formed in the position, located in the first guide hole, of the outer pipe, the cooling liquid outlet is used for being communicated with the liquid discharge channel and the first guide hole, and the liquid discharge pipe penetrates through the second guide hole.
5. The die casting mold based cooling and demolding structure according to claim 4, wherein the demolding assembly further comprises a lifting plate, and the tail end of the liquid discharge pipe and the tail end of the inner rod are both arranged in the lifting plate.
6. The cooling demolding structure based on the die casting mold according to claim 5, wherein a fixing seat is arranged on the lifting plate, the tail end of the liquid discharge pipe penetrates through the fixing seat, and a liquid discharge joint matched with the liquid discharge pipe is arranged on the fixing seat.
7. The cooling demolding structure based on the die casting mold according to claim 5, wherein a limit sleeve and a sliding block are arranged on the lifting plate, a guide groove is arranged on the limit sleeve, the sliding block is slidably arranged in the guide groove, the tail end of the inner rod is connected with the sliding block, and a liquid inlet connector matched with the inner rod is arranged on the sliding block.
8. The cooling and demolding structure based on a die-casting mold according to claim 7, wherein a limit bump is provided on a groove wall of the guide groove, the limit bump being for abutting with the slider.
9. The cooling and demolding structure based on a die casting mold according to claim 1, wherein a threaded portion is provided at a front end of the inner rod, and the threaded portion penetrates the liquid inlet portion.
10. The cooling and demolding structure based on a die-casting mold according to claim 1, wherein a seal ring is provided at a position where an end portion of the outer tube contacts the drain portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321979495.8U CN220329949U (en) | 2023-07-26 | 2023-07-26 | Cooling demoulding structure based on die casting die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321979495.8U CN220329949U (en) | 2023-07-26 | 2023-07-26 | Cooling demoulding structure based on die casting die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220329949U true CN220329949U (en) | 2024-01-12 |
Family
ID=89458755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321979495.8U Active CN220329949U (en) | 2023-07-26 | 2023-07-26 | Cooling demoulding structure based on die casting die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220329949U (en) |
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2023
- 2023-07-26 CN CN202321979495.8U patent/CN220329949U/en active Active
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