CN218134865U - Ejector pin structure of die casting die - Google Patents
Ejector pin structure of die casting die Download PDFInfo
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- CN218134865U CN218134865U CN202121874347.0U CN202121874347U CN218134865U CN 218134865 U CN218134865 U CN 218134865U CN 202121874347 U CN202121874347 U CN 202121874347U CN 218134865 U CN218134865 U CN 218134865U
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- die
- ejector pin
- thimble
- groove
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Abstract
The utility model discloses a die casting die's thimble structure relates to die casting die technical field, include: an ejector plate; the ejector pin is arranged on one side of the outer wall of the ejector pin plate; the sleeve is sleeved on the outer wall of the thimble; the die core is arranged on the outer wall of the sleeve; the transmission mechanism comprises a rack rod, a first half gear, a first connecting rod, a second half gear and a second connecting rod. The utility model discloses a set up drive mechanism, realize pressing down the rack bar, make first pinion drive head rod rotate, thereby under the connection effect of turning block, make the fixture block along the spacing removal of spring pocket, and make spacing spring atress shrink, meanwhile the axis of rotation is along the spacing removal of shifting chute, thereby make the one end of fixture block break away from the draw-in groove, in the time of first pinion revolve, second pinion rotates in step, make the second connecting rod rotate, thereby realize that two fixture blocks break away from the draw-in groove in step, take out the thimble along the spread groove, realize dismantling fast to the thimble.
Description
Technical Field
The utility model relates to a die casting die technical field specifically is a die casting die's thimble structure.
Background
Die casting is a metal casting process, and is characterized in that high pressure is applied to molten metal by utilizing a die cavity, the die is usually processed by using higher-strength alloy, the process is somewhat similar to injection molding, most die casting castings are iron-free, such as zinc, copper, aluminum, magnesium, lead, tin, lead-tin alloy and alloys thereof, a cold chamber die casting machine or a hot chamber die casting machine is required according to different die casting types, ejector pins are used for ejecting a formed product in the die, and when the formed product is required to be ejected, the ejector pins extend out of mounting holes to eject the formed product.
According to the Chinese patent number: CN204603262U discloses a die casting die's thimble structure, this thimble structure includes: the ejector pin device comprises a die core arranged in the die-casting die, a through hole formed in the die core, a sleeve barrel fixedly arranged in the through hole of the die core, an ejector pin plate arranged in the die-casting die, and an ejector pin with one end fixed on the ejector pin plate and the other end arranged in the sleeve barrel. Because the thimble is at the in-process of motion, only do relative motion with the sleeve is inside, and the sleeve with do not move each other between the through-hole of mould benevolence, consequently can cause telescopic wearing and tearing and can not cause the wearing and tearing of mould benevolence in the motion process of thimble, if sleeve wearing and tearing are great, the clearance is great between sleeve and the thimble, only need change the sleeve can, the unedged problem appears in the product of having avoided producing, simultaneously, because telescopic low price, it is low to change simple expense to need not repair mould benevolence, consequently labour saving and time saving has just prolonged the life of mould.
Although the problem that deckle edge, extension mould life appear in the product of having solved production in above-mentioned patent publication, above-mentioned patent publication can't dismantle fast the thimble in the use, inconvenient maintenance inspection to thimble and sleeve slide easy wearing and tearing.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a die casting die's thimble structure to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a die casting die's thimble structure, includes:
an ejector plate;
the ejector pin is arranged on one side of the outer wall of the ejector pin plate;
the sleeve is sleeved on the outer wall of the thimble;
the die core is arranged on the outer wall of the sleeve;
the transmission mechanism comprises a rack rod, a first half gear, a first connecting rod, a second half gear and a second connecting rod, wherein the rack rod is arranged inside the ejector plate, the first half gear is rotatably arranged inside the ejector plate and meshed with the outer wall of one side of the rack rod, the first connecting rod is fixedly connected to the outer wall of the first half gear, the second half gear is rotatably arranged inside the ejector plate and meshed with the outer wall of the other side of the rack rod, and the second connecting rod is fixedly connected to one side of the outer wall of the second half gear through a rotating shaft;
and the lubricating mechanism is positioned in the die core and used for sliding and lubricating the thimble and the sleeve.
As the utility model discloses further scheme again: lubricated mechanism is including oil storage tank, coupling spring, piston plate and oil feed tank, the oil storage tank embeds in the inside of mould benevolence, the inside bottom at the oil storage tank is installed to the oil storage tank, the top at coupling spring is installed to the piston plate, the oil feed tank is located one side of oil storage tank, just the one end and the oil storage tank of oil feed tank link up, and the other end runs through to telescopic inside.
As a further aspect of the present invention: the one end of first connecting rod and second connecting rod all is provided with rotates the groove, the inside in rotation groove is provided with the turning block, the one end of turning block is connected with the fixture block, the top of fixture block is connected with spacing spring.
As the utility model discloses further scheme again: the outer wall both sides of turning block are provided with the axis of rotation, the both sides in rotation groove are provided with the shifting chute, the outer wall of axis of rotation is laminated with the inner wall in shifting chute mutually.
As a further aspect of the present invention: the top of piston plate is connected with the piston rod that runs through to mould benevolence top, the outer wall of piston plate and the inner wall sealing connection of oil storage tank, the inside top that is located the piston plate of oil storage tank is filled with lubricating oil.
As a further aspect of the present invention: the one end outer wall of thimble is provided with the stopper, inside one side of thimble board is provided with the spread groove that agrees with mutually with the outer wall of thimble, spread groove top and bottom are provided with the spring groove that agrees with mutually with the outer wall of fixture block.
As a further aspect of the present invention: the top and the bottom of the thimble are provided with clamping grooves matched with the outer wall of the clamping block, and one end of the clamping block is of an inclined plane structure.
Compared with the prior art, the beneficial effects of the utility model are that:
1. through setting up drive mechanism, realize pressing down the rack bar, when making first semi-gear revolve, drive the head rod and rotate, thereby under the connection effect of turning block, make the fixture block along the spacing removal of spring pocket, and make spacing spring atress shrink, meanwhile the axis of rotation is along the spacing removal of shifting pocket, thereby make the one end of fixture block break away from the draw-in groove, in the time of first semi-gear revolve, second semi-gear rotates in step, make the second connecting rod rotate, thereby realize that two fixture blocks break away from the draw-in groove in step, take out the thimble along the spread groove, realize dismantling fast to the thimble.
2. Through setting up lubricated mechanism, realize pressing the piston rod, make the piston plate along the oil storage tank downstream simultaneously, make the coupling spring atress shrink to make lubricating oil get into in the sleeve through the oil feed tank, thereby when making thimble and sleeve slip, the outer wall of thimble and telescopic inner wall are adhered to and are lubricated, greatly reduced thimble and telescopic sliding wear improve life.
Drawings
FIG. 1 is a schematic structural diagram of a thimble structure of a die casting mold;
FIG. 2 is an enlarged schematic view of a thimble structure of a die casting mold at A;
FIG. 3 is an enlarged schematic view of a thimble structure B of the die-casting mold;
FIG. 4 is a schematic connection diagram of a transmission mechanism of a thimble structure of a die casting mold;
fig. 5 is an enlarged schematic view of a thimble structure of a die casting mold at a position C.
In the figure: 1. an ejector plate; 2. a thimble; 3. a sleeve; 4. a mold core; 5. a transmission mechanism; 501. a rack bar; 502. a first half gear; 503. a first connecting rod; 504. a second half gear; 505. a second connecting rod; 6. a lubricating mechanism; 601. an oil storage tank; 602. a connecting spring; 603. a piston plate; 604. an oil inlet groove; 7. a piston rod; 8. a clamping block; 9. a limiting spring; 10. rotating the block; 11. a rotating groove; 12. a moving groove; 13. and rotating the shaft.
Detailed Description
Referring to fig. 1 to 5, in an embodiment of the present invention, an ejector pin structure of a die casting mold includes:
an ejector plate 1;
the thimble 2 is arranged on one side of the outer wall of the thimble plate 1;
the sleeve 3 is sleeved on the outer wall of the thimble 2;
the mold core 4 is arranged on the outer wall of the sleeve 3;
the transmission mechanism 5 comprises a rack rod 501, a first half gear 502, a first connecting rod 503, a second half gear 504 and a second connecting rod 505, wherein the rack rod 501 is arranged inside the ejector plate 1, the first half gear 502 is rotatably arranged inside the ejector plate 1 and is meshed with the outer wall of one side of the rack rod 501, the first connecting rod 503 is fixedly connected to the outer wall of the first half gear 502, the second half gear 504 is rotatably arranged inside the ejector plate 1 and is meshed with the outer wall of the other side of the rack rod 501, and the second connecting rod 505 is fixedly connected to one side of the outer wall of the second half gear 504 through a rotating shaft;
and the lubricating mechanism 6 is positioned in the die core 4 and used for sliding and lubricating the thimble 2 and the sleeve 3.
This kind of die casting die's thimble structure, the installation of the thimble 2 of being convenient for is dismantled and thimble 2 and sleeve 3 slide lubrication.
In fig. 3: the lubricating mechanism 6 comprises an oil storage tank 601, a connecting spring 602, a piston plate 603 and an oil inlet tank 604, wherein the oil storage tank 601 is embedded in the mold core 4, the oil storage tank 601 is arranged at the bottom end of the inside of the oil storage tank 601, the piston plate 603 is arranged at the top end of the connecting spring 602, the oil inlet tank 604 is arranged at one side of the oil storage tank 601, one end of the oil inlet tank 604 is communicated with the oil storage tank 601, and the other end of the oil inlet tank penetrates through the inside of the sleeve 3.
This kind of die casting die's thimble structure, the slip lubrication of thimble 2 and sleeve 3 of being convenient for reduces wearing and tearing.
In fig. 4: one end of each of the first connecting rod 503 and the second connecting rod 505 is provided with a rotating groove 11, a rotating block 10 is arranged inside the rotating groove 11, one end of the rotating block 10 is connected with a clamping block 8, and the top end of the clamping block 8 is connected with a limiting spring 9.
According to the ejector pin structure of the die-casting die, when the first half gear 502 drives the first connecting rod 503 to rotate, the fixture block 8 can move up and down along the inner wall of the spring groove conveniently.
In fig. 4: two sides of the outer wall of the rotating block 10 are provided with rotating shafts 13, two sides of the rotating groove 11 are provided with moving grooves 12, and the outer wall of the rotating shafts 13 is attached to the inner walls of the moving grooves 12.
This kind of thimble structure of die casting die, when being convenient for head rod 503 rotates, make fixture block 8 reciprocate along the inner wall of spring groove.
In fig. 3: the top end of the piston plate 603 is connected with a piston rod 7 which penetrates through the top end of the mold core 4, the outer wall of the piston plate 603 is hermetically connected with the inner wall of the oil storage tank 601, and lubricating oil is filled in the oil storage tank 601 at the top end of the piston plate 603.
According to the ejector pin structure of the die-casting die, the piston plate 603 moves downwards, so that lubricating oil enters the sleeve 3 through the oil inlet groove 604 for lubrication.
In fig. 1: the outer wall of one end of thimble 2 is provided with the stopper, and inside one side of thimble board 1 is provided with the spread groove that agrees with mutually with the outer wall of thimble 2, and spread groove top and bottom are provided with the spring groove that agrees with mutually with the outer wall of fixture block 8.
This kind of die casting die's thimble structure, the fixture block 8 of being convenient for is spacing fixed to thimble 2.
In fig. 1 and 2: the top and the bottom of the thimble 2 are provided with a clamping groove matched with the outer wall of the clamping block 8, and one end of the clamping block 8 is of an inclined plane structure.
This kind of die casting die's thimble structure is convenient for spacing fixed to thimble 2.
The utility model discloses a theory of operation is: when the ejector pin structure of the die-casting die is used, the rack rod 501 is pressed to enable the first half gear 502 to rotate and simultaneously drive the first connecting rod 503 to rotate, so that the fixture block 8 moves along the spring groove in a limiting mode under the connecting action of the rotating block 10, the limiting spring 9 contracts in a forced mode, meanwhile, the rotating shaft 13 moves along the moving groove 12 in a limiting mode, so that one end of the fixture block 8 is separated from the clamping groove, the second half gear 504 rotates synchronously while the first half gear 502 rotates, the second connecting rod 505 rotates, so that the two fixture blocks 8 are separated from the clamping groove synchronously, the ejector pin 2 is taken out along the connecting groove, rapid disassembly of the ejector pin 2 is achieved, the piston rod 7 is pressed to enable the piston plate 603 to move downwards along the oil storage groove 601, so that lubricating oil enters the sleeve 3 through the oil inlet groove 604, when the ejector pin 2 and the sleeve 3 slide, lubrication is attached to the outer wall of the inner wall of the sleeve 3, sliding abrasion of the ejector pin 2 and the sleeve 3 is greatly reduced, the service life is prolonged, the piston rod 7 is released, the elastic force of the connecting spring 602 acts to enable the ejector pin to enable the piston plate to move, and the end of the piston plate 603 to be located above the piston groove 604 and reset.
The above-mentioned, only be the embodiment of the preferred of the present invention, nevertheless the utility model discloses a protection scope is not limited to this, and any technical personnel familiar with this technical field is in the technical scope of the utility model discloses an according to the utility model discloses a technical scheme and utility model design in addition the replacement of equality or change, all should be covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides a die casting die's thimble structure which characterized in that includes:
an ejector plate (1);
the ejector pins (2) are mounted on one side of the outer wall of the ejector pin plate (1);
the sleeve (3) is sleeved on the outer wall of the thimble (2);
the die core (4), the said die core (4) is installed on the outer wall of the bush (3);
the transmission mechanism (5) comprises a rack rod (501), a first half gear (502), a first connecting rod (503), a second half gear (504) and a second connecting rod (505), wherein the rack rod (501) is installed inside the ejector plate (1), the first half gear (502) is rotatably installed inside the ejector plate (1) and meshed with the outer wall of one side of the rack rod (501), the first connecting rod (503) is fixedly connected to the outer wall of the first half gear (502), the second half gear (504) is rotatably installed inside the ejector plate (1) and meshed with the outer wall of the other side of the rack rod (501), and the second connecting rod (505) is fixedly connected to one side of the outer wall of the second half gear (504) through a rotating shaft;
and the lubricating mechanism (6) is positioned in the die core (4) and is used for sliding and lubricating the thimble (2) and the sleeve (3).
2. The ejector pin structure of the die-casting die as claimed in claim 1, wherein the lubricating mechanism (6) comprises an oil storage tank (601), a connecting spring (602), a piston plate (603) and an oil inlet tank (604), the oil storage tank (601) is embedded inside the die core (4), the oil storage tank (601) is installed at the bottom end of the inside of the oil storage tank (601), the piston plate (603) is installed at the top end of the connecting spring (602), the oil inlet tank (604) is located on one side of the oil storage tank (601), one end of the oil inlet tank (604) is communicated with the oil storage tank (601), and the other end of the oil inlet tank (604) is communicated with the inside of the sleeve (3).
3. The ejector pin structure of the die-casting die as claimed in claim 1, wherein one end of each of the first connecting rod (503) and the second connecting rod (505) is provided with a rotating groove (11), a rotating block (10) is arranged inside each rotating groove (11), one end of each rotating block (10) is connected with a clamping block (8), and the top end of each clamping block (8) is connected with a limiting spring (9).
4. The ejector pin structure of the die-casting die as claimed in claim 3, wherein two sides of the outer wall of the rotating block (10) are provided with rotating shafts (13), two sides of the rotating groove (11) are provided with moving grooves (12), and the outer wall of each rotating shaft (13) is attached to the inner wall of each moving groove (12).
5. The ejector pin structure of the die-casting die as claimed in claim 2, wherein a piston rod (7) penetrating to the top end of the die core (4) is connected to the top end of the piston plate (603), the outer wall of the piston plate (603) is hermetically connected with the inner wall of the oil storage groove (601), and lubricating oil is filled in the oil storage groove (601) at the top end of the piston plate (603).
6. The ejector pin structure of the die-casting die as claimed in claim 1, wherein a limiting block is arranged on the outer wall of one end of the ejector pin (2), a connecting groove matched with the outer wall of the ejector pin (2) is arranged on one side of the inner portion of the ejector pin plate (1), and spring grooves matched with the outer wall of the clamping block (8) are arranged at the top end and the bottom end of the connecting groove.
7. The ejector pin structure of the die-casting die as claimed in claim 1, wherein the top end and the bottom end of the ejector pin (2) are provided with clamping grooves matched with the outer wall of the clamping block (8), and one end of the clamping block (8) is of an inclined surface structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121874347.0U CN218134865U (en) | 2021-08-11 | 2021-08-11 | Ejector pin structure of die casting die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121874347.0U CN218134865U (en) | 2021-08-11 | 2021-08-11 | Ejector pin structure of die casting die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218134865U true CN218134865U (en) | 2022-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121874347.0U Active CN218134865U (en) | 2021-08-11 | 2021-08-11 | Ejector pin structure of die casting die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218134865U (en) |
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2021
- 2021-08-11 CN CN202121874347.0U patent/CN218134865U/en active Active
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