CN220406668U - Extrusion mechanism of die casting die - Google Patents
Extrusion mechanism of die casting die Download PDFInfo
- Publication number
- CN220406668U CN220406668U CN202321988698.3U CN202321988698U CN220406668U CN 220406668 U CN220406668 U CN 220406668U CN 202321988698 U CN202321988698 U CN 202321988698U CN 220406668 U CN220406668 U CN 220406668U
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- 238000001125 extrusion Methods 0.000 title claims abstract description 155
- 230000007246 mechanism Effects 0.000 title claims abstract description 37
- 238000004512 die casting Methods 0.000 title claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000008859 change Effects 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 8
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010079 rubber tapping Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910001338 liquidmetal Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007723 die pressing method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model relates to the field of die casting dies and discloses a die casting die extrusion mechanism which comprises an extrusion sleeve, an extrusion pin, a transmission rod, a quick-change ejector rod and a driver, wherein the extrusion pin slides through the extrusion sleeve along the axis of the extrusion sleeve, the quick-change ejector rod is provided with a stepped hole in a penetrating way along the axis of the extrusion pin, the driver is in driving connection with the transmission rod, and the transmission rod is in transmission connection with the extrusion pin. The quick ejector rod and the driver provide upward jacking force for the extrusion sleeve, so that the extrusion sleeve, the quick-change ejector rod and the driver are sequentially abutted against each other from top to bottom to be fixed, the extrusion sleeve and the quick-change ejector rod are axially positioned, the installation is convenient, the technical problem that the extrusion sleeve is difficult to assemble, and the multistage holes need tapping to be matched with the extrusion sleeve to assemble is solved. When the extrusion mechanism is to be disassembled, the locking of the driver is released, the extrusion sleeve and the quick-change ejector rod slide downwards to be separated from the multistage holes under the action of gravity, so that the extrusion sleeve can be disassembled very quickly, and the maintenance efficiency is greatly improved.
Description
Technical Field
The utility model relates to the field of die casting dies, in particular to a die casting die extrusion mechanism.
Background
Because the structure of automobile parts is complicated, adopt die casting die to process the shaping usually, present enterprise needs to process an automobile parts, in actual course of working, because the runner on the cover half is longer, the cooling solidification rate of high temperature aluminium liquid is very fast, when flowing in the runner, the temperature of aluminium liquid has obviously reduced for the pressure that the pressure room transmitted can't keep to the solidification end of foundry goods, in addition because the outside of aluminium liquid takes place to contact with the mould surface, this makes outside cooling rate faster than inside, the position that the foundry goods finally solidifies is often inside, often loose appearance in the hot junction department of foundry goods, if predetermine to be at this position processing hole or recess, often can lead to the emergence of shrinkage cavity phenomenon, influence product quality. In order to reduce the occurrence of shrinkage cavities, a pressing mechanism is generally used to press the molten aluminum while it is in a semi-solid state.
The extrusion mechanism is generally arranged on the slide block loose core or directly arranged on the movable mold core. The extrusion mechanism mainly comprises an extrusion pin extending into the die cavity, an extrusion sleeve fixed on the core-pulling block and matched with the extrusion pin, and a driving mechanism for driving the extrusion pin to move, wherein the extrusion sleeve plays the roles of guiding, buffering, sealing and the like in the extrusion mechanism of the die-casting die, so that the smooth proceeding of the extrusion process is ensured. But the extrusion sleeve is fixed on the core-pulling block mainly through a threaded fit mode, namely a threaded hole matched with the extrusion sleeve is formed in the core-pulling block or the movable mold core, external threads matched with the threaded hole are formed in the outer wall of the extrusion sleeve, then the extrusion sleeve is inserted into the threaded hole, and the extrusion sleeve is fixed on the core-pulling block or the movable mold core through rotating and adjusting the position and using threaded fastening or other locking structures. When the angle and the position of the extrusion mechanism are special, the threaded hole is formed deep inside the core-pulling block or the movable mold core, and tapping processing of the threaded hole is difficult; in addition, when the extrusion sleeve needs to be maintained and replaced due to abrasion, the extrusion sleeve needs to be unscrewed by a special tool, so that the operation is difficult, time and labor are wasted, and the maintenance efficiency is affected.
It can be seen that there is a need for improvements and improvements in the art.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present utility model is to provide a die casting die extrusion mechanism aimed at facilitating the installation and removal of an extrusion sleeve.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a die casting die extrusion mechanism, includes extrusion cover, extrusion round pin, transfer line, quick change ejector pin and driver, the extrusion round pin is along the axis slip of extrusion cover and is passed the extrusion cover, the quick change ejector pin runs through along its axis and is provided with the shoulder hole, the shoulder hole include with extrusion round pin sliding fit's first hole and with transfer line sliding fit's second hole, the driver is connected with the transfer line drive, the transfer line is connected with the extrusion round pin transmission, the tip that the quick change ejector pin was equipped with first hole is used for upwards propping up the afterbody of extrusion cover, the tip that the quick change ejector pin was equipped with the second hole is upwards propped up by the driver.
As a further improvement of the technical scheme, the die-casting die extrusion mechanism further comprises a fixed lock head, wherein the fixed lock head is sequentially provided with a mounting hole and a threaded hole in a penetrating way along the axis of the fixed lock head, and the aperture of the mounting hole is smaller than that of the threaded hole; the extrusion pin comprises a pin shaft main body and a limiting protrusion arranged at one end of the pin shaft main body, the pin shaft main body is matched with the mounting hole, the limiting protrusion is positioned in the threaded hole, a threaded column is arranged at one end of the transmission rod, and the threaded column is matched with the threaded hole of the fixed lock head and is propped against the limiting protrusion upwards.
As a further improvement of the technical scheme, the driver is an oil cylinder, a piston rod of the oil cylinder is in driving connection with the transmission rod, and the end part of the quick-change ejector rod provided with the second hole is pressed on the body of the oil cylinder.
As a further improvement of the technical scheme, the tail part of the extrusion sleeve is provided with a positioning step, the inner hole in the extrusion sleeve comprises a first shaft hole and a second shaft hole which are connected with each other, the first shaft hole is positioned at the head part of the extrusion sleeve and is in sliding connection with the extrusion pin, and an avoidance gap is formed between the second shaft hole and the extrusion shaft.
The utility model has the beneficial effects that: compared with the prior art, the die-casting die extrusion mechanism provided by the utility model thoroughly changes the traditional extrusion sleeve fixing mode, and the quick ejector rod and the driver provide upward pushing force for the extrusion sleeve, so that the extrusion sleeve, the quick-change ejector rod and the driver are sequentially abutted against each other from top to bottom to realize fixation, the extrusion sleeve and the quick-change ejector rod are axially positioned, the die-casting die extrusion mechanism is convenient to install, and the technical problems that the extrusion sleeve is difficult to assemble and the multistage holes need tapping to be matched with the extrusion sleeve for assembling are solved. When the extrusion mechanism is to be disassembled, the locking of the driver is released, the extrusion sleeve and the quick-change ejector rod slide downwards to be separated from the multi-stage hole under the action of gravity, so that the extrusion sleeve can be disassembled very quickly, a special tool is not required to extend into the multi-stage hole to assist in disassembly and assembly, and the maintenance efficiency is greatly improved.
Drawings
Fig. 1 is a perspective view of a die casting die extrusion mechanism provided by the utility model.
Fig. 2 is an exploded view of the extrusion mechanism of the die casting die provided by the utility model.
Fig. 3 is a cross-sectional view of the die casting die extrusion mechanism provided by the utility model.
Fig. 4 is a partial enlarged view of the L region in fig. 3.
Fig. 5 is a perspective view of an oil cylinder provided on a slider in the die casting die pressing mechanism.
Fig. 6 is a perspective view of the die casting die pressing mechanism disposed on the slide block core.
Fig. 7 is a partial enlarged view of the area a in fig. 6.
Description of main reference numerals: the novel core pulling block comprises a 1-extrusion sleeve, a 11-positioning step, a 12-first shaft hole, a 13-second shaft hole, a 14-avoiding gap, a 2-extrusion pin, a 21-pin shaft body, a 22-limiting protrusion, a 3-transmission rod, a 31-threaded column, a 4-quick-change ejector rod, a 41-stepped hole, a 411-first hole, a 412-second hole, a 5-oil cylinder, a 6-fixed lock head, a 61-mounting hole, a 62-threaded hole, a 71-sliding block and a 72-core pulling block.
Detailed Description
The utility model provides a die-casting die extrusion mechanism, which is used for making the purposes, technical schemes and effects of the utility model clearer and more definite, and is further described in detail below by referring to the accompanying drawings and examples. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1, the utility model provides a die casting die extrusion mechanism, which comprises an extrusion sleeve 1, an extrusion pin 2, a transmission rod 3, a quick-change ejector rod 4 and a driver, wherein the extrusion pin 2 slides through the extrusion sleeve 1 along the axis of the extrusion sleeve 1, the quick-change ejector rod 4 is provided with a stepped hole 41 along the axis of the extrusion sleeve, the stepped hole 41 comprises a first hole 411 in sliding fit with the extrusion pin 2 and a second hole 412 in sliding fit with the transmission rod 3, the driver is in driving connection with the transmission rod 3, the transmission rod 3 is in driving connection with the extrusion pin 2, the end part of the quick-change ejector rod 4 provided with the first hole 411 is used for upwards propping against the tail part of the extrusion sleeve 1, and the end part of the quick-change ejector rod 4 provided with the second hole 412 is upwards propped by the driver.
In this embodiment, the extrusion mechanism is obliquely disposed on the core pulling of the slider 71, that is, a three-stage hole matching the shapes of the extrusion sleeve 1 and the quick-change ejector rod 4 is disposed in the connection between the slider 71 and the core pulling block 72, during installation, the extrusion pin 2 is connected with the head of the transmission rod 3, the tail of the transmission rod 3 is connected with the output end of the driver, then the extrusion pin 2 and the transmission rod 3 are placed in the second hole 412 of the quick-change ejector rod 4, the extrusion pin 2 slides out of the first hole 411, the transmission rod 3 is also slidably connected with the second hole 412 of the quick-change ejector rod 4, then the extrusion sleeve 1 is sleeved on the extrusion pin 2, at this time, the tail of the extrusion sleeve 1 abuts against the head of the quick-change ejector rod 4, the extrusion mechanism is assembled, then the extrusion mechanism is placed in the multistage hole (except for the driver), since the total length of the multistage hole is equal to the length of the extrusion sleeve 1, after the extrusion sleeve 1 and the quick-change ejector rod 4 are matched with the multistage hole, the driver is locked on the slider 71, the driver is pushed upwards against the tail of the quick-change ejector rod 4, so that the extrusion sleeve 1, the driver abuts against the extrusion sleeve 4, the driver and the quick-change ejector rod 4 are matched with the multistage hole, and the extrusion sleeve 1 is assembled in sequence, and the axial direction is difficult to be assembled.
When the extrusion mechanism is to be disassembled, the locking of the driver is released, the extrusion sleeve 1 and the quick-change ejector rod 4 slide downwards to be separated from the multi-stage holes under the action of gravity, so that the extrusion sleeve 1 can be disassembled very quickly, a special tool is not required to extend into the multi-stage holes to assist in disassembly and assembly, and the maintenance efficiency is greatly improved. It will be appreciated that if the extrusion sleeve 1 is stuck in the multi-stage hole, the extrusion sleeve 1 may be tapped or pressed outside the core-pulling block 72 to urge the extrusion sleeve 1 to be separated from the multi-stage hole when the extrusion sleeve 1 cannot slide down by gravity.
When the die is in operation, the driver drives the extrusion pin 2 to move through the transmission rod 3, so that the extrusion rod stretches into the die cavity to pressurize, and shrinkage cavities of castings are reduced. After the casting is extruded, the driver pulls the extrusion pin 2 to retract into the extrusion sleeve 1 through the transmission rod 3. In fact, the extrusion sleeve 1 in the die casting mold plays several roles: 1. guiding function: the press sleeve 1 can provide stable guidance for the press pin 2, ensuring uniform application of the pressing force. The device can ensure that the extrusion rod keeps the accuracy and stability of the track in the moving process. 2. Cushioning effect: when the extrusion pin 2 moves to the tail end or contacts with a workpiece, the extrusion sleeve 1 can buffer impact force, friction and abrasion between the extrusion pin 2 and the die are reduced, and the service life of the die is prolonged. 3. Sealing function: the extrusion sleeve 1 can prevent liquid metal from leaking into the extrusion mechanism through sealing fit with the extrusion rod, keep the working environment clean and avoid damage of the liquid metal to the mechanism. In general, the extrusion sleeve 1 plays roles of guiding, buffering, sealing and the like in an extrusion mechanism of a die casting die, ensures smooth proceeding of an extrusion process, and prolongs the service life of the die.
Specifically, the die casting die extrusion mechanism further comprises a fixed lock head 6, wherein a mounting hole 61 and a threaded hole 62 are sequentially formed in the fixed lock head 6 along the axis of the fixed lock head in a penetrating manner, and the aperture of the mounting hole 61 is smaller than that of the threaded hole 62; the extrusion pin 2 comprises a pin shaft main body 21 and a limit protrusion 22 arranged at one end of the pin shaft main body 21, the pin shaft main body 21 is matched with the mounting hole 61, the limit protrusion 22 is positioned in the threaded hole 62, one end of the transmission rod 3 is provided with a threaded column 31, and the threaded column 31 is matched with the threaded hole 62 of the fixed lock head 6 and is propped against the limit protrusion 22 upwards. When the extrusion pin 2 is engaged with the quick-change ejector rod 4, the extrusion end of the extrusion pin 2 is firstly extended into the threaded hole 62 and penetrates through the mounting hole 61, and the outer diameter of the limiting boss 22 is larger than that of the mounting hole 61, so that the limiting boss 22 cannot penetrate through the mounting hole 61 and is left in the threaded hole 62, then the threaded column 31 on the transmission rod 3 is screwed into the threaded hole 62 of the fixed lock head 6, and the threaded column 31 props against the limiting boss 22 to lock the extrusion pin 2. The transmission rod 3 is connected with the extrusion pin 2 through the fixed lock head 6, the connection is firm and reliable, and the fixed lock head 6 can also slide smoothly in the second hole 412.
Specifically, the driver is an oil cylinder 5, a piston rod of the oil cylinder 5 is in driving connection with the transmission rod 3, and the end part of the quick-change ejector rod 4 provided with the second hole 412 is pressed on the body of the oil cylinder 5. The oil cylinder 5 has the advantages of providing a stable power source, high bearing capacity, precise control, adjustable speed, safety and reliability.
Preferably, the tail of the extrusion sleeve 1 is provided with a positioning step 11, the inner hole in the extrusion sleeve 1 comprises a first shaft hole 12 and a second shaft hole 13 which are connected with each other, the first shaft hole 12 is positioned at the head of the extrusion sleeve 1 and is in sliding connection with the extrusion pin 2, and an avoidance gap 14 is formed between the second shaft hole 13 and the extrusion shaft. Through the arrangement, the first shaft hole 12 is in sliding fit with the extrusion pin 2, so that on one hand, the movement of the extrusion pin 2 is guided, on the other hand, the liquid metal can be prevented from leaking into the extrusion mechanism from the first shaft hole 12, and the second shaft hole 13 and the extrusion shaft are prevented from avoiding the gap 14, so that the friction force between the extrusion sleeve 1 and the extrusion pin 2 can be reduced, and the smooth sliding of the extrusion pin 2 is ensured.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
It will be understood that equivalents and modifications will occur to those skilled in the art based on the present utility model and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model.
Claims (4)
1. The utility model provides a die casting die extrusion mechanism, its characterized in that, including extrusion cover, extrusion round pin, transfer line, quick change ejector pin and driver, the extrusion round pin is along the axis slip of extrusion cover and is passed the extrusion cover, the quick change ejector pin runs through along its axis and is provided with the shoulder hole, the shoulder hole include with extrusion round pin sliding fit's first hole and with transfer line sliding fit's second hole, the driver is connected with the transfer line drive, the transfer line is connected with extrusion round pin transmission, the tip that the quick change ejector pin was equipped with first hole is used for upwards propping up the afterbody of extrusion cover, the tip that the quick change ejector pin was equipped with the second hole is upwards propped up by the driver.
2. The die casting die extrusion mechanism according to claim 1, further comprising a fixed lock head, wherein the fixed lock head is provided with a mounting hole and a threaded hole in a penetrating manner along the axis of the fixed lock head, and the aperture of the mounting hole is smaller than that of the threaded hole; the extrusion pin comprises a pin shaft main body and a limiting protrusion arranged at one end of the pin shaft main body, the pin shaft main body is matched with the mounting hole, the limiting protrusion is positioned in the threaded hole, a threaded column is arranged at one end of the transmission rod, and the threaded column is matched with the threaded hole of the fixed lock head and is propped against the limiting protrusion upwards.
3. The die casting die extrusion mechanism of claim 1, wherein the driver is an oil cylinder, a piston rod of the oil cylinder is in driving connection with the transmission rod, and the end part of the quick-change ejector rod provided with the second hole is pressed on a body of the oil cylinder.
4. A die casting die extrusion mechanism as set forth in any one of claims 1 to 3 wherein the tail of the extrusion sleeve is provided with a positioning step, the inner bore in the extrusion sleeve includes a first shaft bore and a second shaft bore connected to each other, the first shaft bore being located at the head of the extrusion sleeve and slidably connected to the extrusion pin, the second shaft bore forming an escape gap with the extrusion shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321988698.3U CN220406668U (en) | 2023-07-26 | 2023-07-26 | Extrusion mechanism of die casting die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321988698.3U CN220406668U (en) | 2023-07-26 | 2023-07-26 | Extrusion mechanism of die casting die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220406668U true CN220406668U (en) | 2024-01-30 |
Family
ID=89644589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321988698.3U Active CN220406668U (en) | 2023-07-26 | 2023-07-26 | Extrusion mechanism of die casting die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220406668U (en) |
-
2023
- 2023-07-26 CN CN202321988698.3U patent/CN220406668U/en active Active
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