CN111745138A - Sliding block ejection mechanism and die-casting die - Google Patents
Sliding block ejection mechanism and die-casting die Download PDFInfo
- Publication number
- CN111745138A CN111745138A CN201910235110.9A CN201910235110A CN111745138A CN 111745138 A CN111745138 A CN 111745138A CN 201910235110 A CN201910235110 A CN 201910235110A CN 111745138 A CN111745138 A CN 111745138A
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- China
- Prior art keywords
- sliding block
- ejector plate
- die
- ejector
- ejection mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 37
- 238000004512 die casting Methods 0.000 title claims abstract description 28
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Classifications
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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
-
- 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
- B22D17/2236—Equipment for loosening or ejecting castings from dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of dies, and particularly discloses a sliding block ejection mechanism and a die-casting die. The sliding block ejection mechanism comprises a first sliding block with a forming part, a driving device, an ejector plate, an ejector pin, a limiting block and two elastic locking assemblies; the ejector pin plate is arranged on one side of the first sliding block, which is far away from the forming part; the ejector pin is connected with the ejector pin plate, and one end of the ejector pin movably penetrates through the first sliding block along the sliding direction of the first sliding block; the limiting block is arranged on one side, facing the first sliding block, of the ejector plate and used for limiting the ejector plate; the two elastic locking assemblies lock the ejector plate in a die closing state; after the mold is opened, the first sliding block moves for a certain distance relative to the ejector plate under the driving of the driving device, and the elastic locking assembly releases the ejector plate so that the ejector plate and the first sliding block move together under the driving of the driving device. The sliding block ejection mechanism and the die-casting die can effectively improve the condition of tensile fracture and deformation in the product demolding process, and improve the product yield.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of dies, in particular to a sliding block ejection mechanism and a die-casting die with the sliding block ejection mechanism.
[ background of the invention ]
Die casting is a metal forming process with high efficiency and little or no cutting, and a die casting die is important process equipment for die casting production. Whether the die casting process is carried out smoothly and the quality of die castings is good or bad depends on the reasonability and the advancement of the die design to a great extent.
When a die casting mold is used for die casting a die casting, a slide block ejection mechanism arranged in the die casting mold is generally used for ejecting the die casting. The slide ejection mechanism generally includes a slide and a driving device for driving the slide to move. However, when a die casting having a high-depth portion such as a cutter cover is die-cast using a conventional die-casting mold, since the forming portion of the high-depth portion of the die casting is generally provided on the slider, the die casting is likely to move with the ejection of the slider during the demolding process, and thus the product is easily cracked and deformed, and the yield is low.
Therefore, it is necessary to design a slide ejection mechanism of a die-casting mold to solve the above problems.
[ summary of the invention ]
The invention aims to provide a sliding block ejection mechanism and a die-casting die, which can effectively improve the condition of tensile fracture and deformation in the product demoulding process and improve the product yield.
In order to achieve the purpose, the invention adopts the following technical scheme:
a slide block ejection mechanism comprises a first slide block with a forming part and a driving device; the slider ejection mechanism further comprises:
the ejector plate is arranged on one side, far away from the forming part, of the first sliding block;
the ejector pin is connected with the ejector pin plate, and one end of the ejector pin movably penetrates through the first sliding block along the sliding direction of the first sliding block;
the limiting block is arranged on one side, facing the first sliding block, of the ejector plate and used for limiting the ejector plate; and
two elastic locking assemblies which lock the ejector plate in a mold closing state; after the mould is opened, the first sliding block moves for a certain distance relative to the ejector plate under the driving of the driving device, and the elastic locking assembly releases the ejector plate so that the ejector plate and the first sliding block move together under the driving of the driving device.
Furthermore, the elastic locking assembly comprises a shovel base, a spring connected with the shovel base and a pull hook; the shovel base can move along the sliding direction vertical to the first sliding block under the action of the elastic force of the spring; the pulling hook is connected with the first sliding block and is provided with a hook end which hooks the ejector retainer plate, and the hook end is in sliding fit with the shovel base.
Furthermore, the driving device comprises a first oil cylinder, and a driving end of the first oil cylinder is connected with a stop block and a connecting rod; the connecting rod movably penetrates through the ejector plate to be connected with the first sliding block; the stop block is arranged on one side of the ejector plate, which is far away from the first sliding block.
Furthermore, the ejector plate is connected with two guiding and positioning rods, and the two guiding and positioning rods are arranged along the sliding direction of the first sliding block.
A die casting die comprises an upper die and a lower die; the lower die is provided with the sliding block ejection mechanism.
Furthermore, the lower die is further provided with two sliding block mechanisms which are respectively arranged on two sides of the first sliding block and comprise a second sliding block with a forming part and a second oil cylinder for driving the second sliding block to move.
The invention has the beneficial effects that: according to the sliding block ejection mechanism and the die-casting die, the two elastic locking assemblies lock the ejector plate in a die-closing state; after the mold is opened, the driving device drives the first sliding block to be opposite to the ejector plate, and the ejector plate is still in a locked state at the moment, so that the first sliding block is separated from a product under the assistance of the ejector pins; after the first sliding block moves a certain distance relative to the ejector plate, the elastic locking assembly loosens the ejector plate, and the driving device drives the ejector plate and the first sliding block to move together, so that the ejector pin exits from the product, the condition of tensile crack deformation in the product demoulding process is effectively improved, and the product yield is improved. In addition, the ejector pin plate is locked by the two elastic locking assemblies in a die assembly state, so that the situation that the ejector pin retreats in the injection molding process of a product can be prevented.
[ description of the drawings ]
FIG. 1 is a schematic structural view of a slide block ejection mechanism and a die-casting mold provided by the invention;
FIG. 2 is a schematic structural view of the slider ejection mechanism of FIG. 1 in a first state;
FIG. 3 is a schematic diagram of the slider ejection mechanism of FIG. 1 in a second state;
FIG. 4 is a schematic structural view of the slider ejection mechanism of FIG. 1 in a third state;
fig. 5 is a schematic structural view of the slider ejection mechanism in fig. 1 in a fourth state.
[ detailed description ] embodiments
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1 to 5, a die casting mold includes an upper mold 10 and a lower mold 20; the lower mold 20 is provided with a slider ejection mechanism 30, and the slider ejection mechanism 30 includes a first slider 31 having a molding portion, a driving device 32, an ejector plate 33, an ejector pin 34, a stopper 35, and two elastic locking assemblies 36.
Specifically, in the slider ejection mechanism 30, the ejector plate 33 is provided on the side of the first slider 31 remote from the molding section; the thimble 34 is connected with the thimble plate 33, and one end of the thimble 34 movably passes through the first slide block 31 along the sliding direction of the first slide block 31; the limiting block 35 is arranged on one side of the ejector plate 33 facing the first slider 31 and used for limiting the ejector plate 33; the two elastic locking assemblies 36 lock the ejector plate 33 in a mold closing state; after the mold is opened, the first sliding block 31 moves a certain distance relative to the ejector plate 33 under the driving of the driving device 32, and the elastic locking assembly 36 releases the ejector plate 33, so that the ejector plate 33 and the first sliding block 31 move together under the driving of the driving device 32.
The elastic locking component 36 of the invention comprises a connecting seat 361 connected with the lower die, a shovel base 362, a spring connected with the shovel base 362 and a pull hook 363; the scoop base 362 can move in a direction perpendicular to the sliding direction of the first slider 31 by the elastic force of the spring; the pulling hook 363 is connected to the first slider 31 and has a hook end 3631 hooking the ejector plate 33, and the hook end 3631 is slidably engaged with the shovel base 362. Further, the connecting seat 361 is provided with a sliding rail 364 along a sliding direction perpendicular to the first sliding block 31, and the sliding rail 364 is in sliding fit with a sliding groove formed on the shovel base 362.
The driving device 32 comprises a first oil cylinder 321, wherein the driving end of the first oil cylinder 321 is connected with a stop block 322 and a connecting rod 323; the connecting rod 323 movably passes through the ejector plate 33 and is connected with the first sliding block 31; the stopper is provided on the side of the ejector plate 33 away from the first slider 31.
In order to prevent the ejector plate 33 from shifting during movement relative to the first slider 31, two guide positioning rods may be provided on the ejector plate 33 in the sliding direction of the first slider 31.
Further, the lower mold 20 of the present invention is further provided with two sliding block mechanisms 40, wherein the two sliding block mechanisms 40 are respectively disposed on two sides of the first sliding block 31, and include a second sliding block 41 having a forming portion and a second oil cylinder 42 for driving the second sliding block 41 to move. In operation, after the first sliding block 31 and the thimble 34 are driven by the first cylinder 321 to exit the product, the second cylinder 42 drives the second sliding block 41 to exit the product.
The working principle of the slide block ejection mechanism 30 in the invention is as follows:
1) when the upper die 10 and the lower die 20 are in a die-closing state, the first oil cylinder 321 locks the first slide block 31, the draw hook 363 connected with the first slide block 31 hooks the ejector plate 33, and the shovel base 362 compresses the draw hook 363 under the action of the elastic force of the spring so as to lock the ejector plate 33; the structure of the slide ejection mechanism 30 in the mold clamping state is shown in fig. 2.
2) After the upper die 10 and the lower die 20 are opened, the first oil cylinder 321 drives the first sliding block 31 to move relative to the ejector plate 33, and at this time, the ejector plate 33 is still in a locked state; so that the first slide block 31 is firstly separated from the product with the aid of the ejector pin 34; the schematic structure of the first slider 31 after being separated from the product is shown in fig. 3.
3) When the first cylinder 321 drives the first slider 31 to move relative to the ejector plate 33, the pull hook 363 is driven to move along the withdrawing direction of the slider, and meanwhile, the pull hook 363 gradually releases the ejector plate 33 under the combined action of the shovel base 362 and the spring.
4) After the ejector plate 33 is loosened, the first oil cylinder 321 drives the first sliding block 31 and the ejector plate 33 to move together, so that the ejector pins 34 are withdrawn from the product; as shown in fig. 4.
After the thimble 34 withdraws from the product, the second cylinder 42 drives the second slide block 41 to withdraw from the product; as shown in fig. 5. And finally, ejecting the product upwards from the lower die and taking the product away.
The sliding block ejection mechanism 30 and the die-casting die effectively improve the situation of tensile fracture and deformation in the product demolding process and improve the product yield. In addition, because the ejector plate 33 is in a locked state in the mold clamping state, the ejector pin 34 can be prevented from retreating in the injection molding process of the product.
The technical principles of the present invention have been described above in connection with specific embodiments, which are intended to explain the principles of the present invention and should not be construed as limiting the scope of the present invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (6)
1. A slide block ejection mechanism comprises a first slide block with a forming part and a driving device; its characterized in that, slider ejection mechanism still includes:
the ejector plate is arranged on one side, far away from the forming part, of the first sliding block;
the ejector pin is connected with the ejector pin plate, and one end of the ejector pin movably penetrates through the first sliding block along the sliding direction of the first sliding block;
the limiting block is arranged on one side, facing the first sliding block, of the ejector plate and used for limiting the ejector plate; and
two elastic locking assemblies which lock the ejector plate in a mold closing state; after the mould is opened, the first sliding block moves for a certain distance relative to the ejector plate under the driving of the driving device, and the elastic locking assembly releases the ejector plate so that the ejector plate and the first sliding block move together under the driving of the driving device.
2. The slider ejection mechanism of claim 1, wherein the resilient locking assembly comprises a shovel base, a spring connected to the shovel base, and a pull hook; the shovel base can move along the sliding direction vertical to the first sliding block under the action of the elastic force of the spring; the pulling hook is connected with the first sliding block and is provided with a hook end which hooks the ejector retainer plate, and the hook end is in sliding fit with the shovel base.
3. The slider ejection mechanism of claim 1, wherein the driving device comprises a first cylinder, and a driving end of the first cylinder is connected with a stop block and a connecting rod; the connecting rod movably penetrates through the ejector plate to be connected with the first sliding block; the stop block is arranged on one side of the ejector plate, which is far away from the first sliding block.
4. The slider ejection mechanism according to claim 1, wherein two guiding and positioning rods are connected to the ejector plate, and are arranged along the sliding direction of the first slider.
5. A die casting die comprises an upper die and a lower die; characterized in that the lower die is provided with a slide ejection mechanism according to any one of claims 1 to 4.
6. The die casting mold as claimed in claim 5, wherein the lower mold is further provided with two slide block mechanisms, the two slide block mechanisms are respectively arranged on two sides of the first slide block and comprise a second slide block with a forming part and a second oil cylinder for driving the second slide block to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910235110.9A CN111745138A (en) | 2019-03-27 | 2019-03-27 | Sliding block ejection mechanism and die-casting die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910235110.9A CN111745138A (en) | 2019-03-27 | 2019-03-27 | Sliding block ejection mechanism and die-casting die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111745138A true CN111745138A (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910235110.9A Pending CN111745138A (en) | 2019-03-27 | 2019-03-27 | Sliding block ejection mechanism and die-casting die |
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| Country | Link |
|---|---|
| CN (1) | CN111745138A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112371947A (en) * | 2020-10-23 | 2021-02-19 | 重庆博奥镁铝金属制造有限公司 | Product demoulding method for forming complex deep cavity structure by means of sliding block |
| CN112829133A (en) * | 2020-12-23 | 2021-05-25 | 东莞东运镁业有限公司 | Device for avoiding product deformation during die sinking |
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2019
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112371947A (en) * | 2020-10-23 | 2021-02-19 | 重庆博奥镁铝金属制造有限公司 | Product demoulding method for forming complex deep cavity structure by means of sliding block |
| CN112829133A (en) * | 2020-12-23 | 2021-05-25 | 东莞东运镁业有限公司 | Device for avoiding product deformation during die sinking |
| CN112829133B (en) * | 2020-12-23 | 2024-08-23 | 东莞东运镁业有限公司 | Device for avoiding deformation of product during die sinking |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201009 |
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| RJ01 | Rejection of invention patent application after publication |