CN118023498A - Die casting die slider structure of loosing core - Google Patents
Die casting die slider structure of loosing core Download PDFInfo
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- CN118023498A CN118023498A CN202410440510.4A CN202410440510A CN118023498A CN 118023498 A CN118023498 A CN 118023498A CN 202410440510 A CN202410440510 A CN 202410440510A CN 118023498 A CN118023498 A CN 118023498A
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- 238000004512 die casting Methods 0.000 title claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 57
- 238000003825 pressing Methods 0.000 claims description 13
- 210000000078 claw Anatomy 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The invention belongs to the technical field of die casting dies, in particular to a die casting die sliding block core pulling structure, which comprises a sliding block piece and a driving rod, wherein the sliding block piece is movably arranged in a movable die, a side core is arranged in the sliding block piece, an inclined guide groove is formed in the side wall of the sliding block piece, the driving rod is movably inserted in the movable die, one end of the driving rod is in sliding connection with the sliding block piece, the other end of the driving rod extends to the outer side of the movable die, and the die casting die sliding block core pulling structure also comprises a guide mechanism arranged in the movable die.
Description
Technical Field
The invention belongs to the field of die casting dies, and particularly relates to a die casting die sliding block core pulling structure.
Background
In a die-casting die, part of die-casting products are complicated in structure, for example, holes are formed in the side surfaces of the products, the die cannot be directly ejected, a core-pulling structure is required to be arranged to assist smooth demolding, after the die is ejected, a sliding block is driven to move through an oil cylinder and other devices, the core is pulled out, so that die castings can be smoothly ejected, and the stability of the core-pulling structure is a necessary condition for continuous production of castings.
One patent application with publication number CN115301923B discloses a core pulling mechanism and a core pulling method of a die casting die, wherein the core pulling mechanism is arranged on a movable die, a locking groove is formed in the movable die, a locking block is locked into the locking groove during die assembly, and a wedging block is propped against the locking block to prevent a sliding seat and the sliding block from retreating; when the die is opened, the telescopic shaft of the core-pulling oil cylinder is contracted backwards, the locking block is separated from the locking groove by the precursor, and then the driving block, the locking block, the sliding seat and the sliding block are driven to move backwards cooperatively so as to complete core-pulling action, and the locking block and the driving block are in a static state relative to the sliding block and the sliding seat. The core pulling mechanism can effectively lock the sliding seat and the sliding block, not only can ensure that the sliding seat and the sliding block cannot retreat, but also has simple action when the sliding seat and the sliding block are unlocked.
The technical scheme is characterized in that the sliding block can be required to move obliquely to achieve the effect of completely separating the sliding block from a product when the product of different types is demoulded in the working process, so that the product is demoulded conveniently, more methods are adopted to set inclined sliding grooves on the sliding block when the sliding block is guided, guiding devices such as guiding cylinders or guiding plates are arranged in a movable die, the guiding devices are inserted into the sliding grooves, the moving track of the sliding block is limited, the guiding devices are easy to wear after long-term movement, the moving precision of the sliding block is reduced, the sliding block is offset and the like, and the dimensional precision of a die casting product is influenced.
Therefore, the invention provides a die casting die slide block core pulling structure.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention discloses a slide block core pulling structure of a die casting die, which is arranged on a movable die of the die casting die and comprises a slide block piece and a driving rod, wherein the slide block piece is movably arranged in the movable die, a side core is arranged in the slide block piece, an inclined guide groove is formed in the side wall of the slide block piece, the driving rod is movably inserted in the movable die, one end of the driving rod is in sliding connection with the slide block piece, the other end of the driving rod extends to the outer side of the movable die, the slide block core pulling structure further comprises a guide mechanism arranged in the movable die, the guide mechanism is inserted into the guide groove, and the guide mechanism comprises:
A center rod arranged in the movable mould in a rotating way;
A plurality of guide pieces movably inserted at the outer side of the central rod, and a plurality of guide pieces are uniformly distributed along the annular side of the central rod;
And the supporting spring is used for pushing the guide piece to extend outwards and prop against the inner wall of the guide groove.
Preferably, the guide piece includes straight board and arc sideboard, straight board activity grafting is in the center pole, arc sideboard supports the inner wall of guide way, guiding mechanism still includes: a latch section fixedly connected to the straight plate; the rotating ring is rotatably arranged in the movable die, and the rotating ring is sleeved on the outer side of the center rod; the clamping jaws are uniformly distributed on the swivel, are of a unidirectional rotation structure, are respectively clamped with the clamping tooth sections, and are used for preventing the guide piece from shrinking inwards.
Preferably, the guide mechanism further comprises: a through groove formed in the straight plate; the movable operation rod is movably inserted into the movable die, a plurality of bevel edges are arranged at the end part on the operation rod, and after the operation rod moves, the bevel edges at the end part are contacted with the through groove and drive a plurality of guide pieces to synchronously retract inwards.
Preferably, the device further comprises a positioning mechanism, the positioning mechanism comprises: the positioning rod is arranged in the movable mould in a sliding manner; a plurality of positioning grooves uniformly distributed on the side of the central rod ring; and the positioning spring is used for pushing the positioning rod to be inserted into the positioning groove at the top end.
Preferably, the device further comprises a control mechanism, the control mechanism comprising: the sliding plate is arranged in the movable mould in a sliding way and fixedly connected with the driving rod; the ratchet group is arranged at the bottom end of the sliding plate; the guide piece extends outwards to drive the arc-shaped tooth section to be in contact with the ratchet group, and the ratchet group drives the arc-shaped tooth section to rotate unidirectionally.
Preferably, the positioning mechanism further comprises: the sleeve is movably sleeved on the outer side of the positioning rod, and a step for limiting the positioning rod is arranged in the sleeve; the driven plate is arranged on the outer side of the sleeve; the bevel board is fixedly connected to the top end of the sliding plate; the push rod is fixedly connected to the arc tooth section and is used for pushing the sleeve to move upwards, and after the sleeve moves upwards, the bevel edge plate is contacted with the driven plate and pushes the sleeve and the positioning rod to move upwards to be separated from the top end of the positioning groove.
Preferably, the push rods and the positioning rods are distributed in a staggered manner.
Preferably, the control mechanism further includes: the telescopic rod is movably hinged with the sleeve, the other end of the telescopic rod is movably hinged with the movable mould, and the telescopic rod is inclined; and the extension spring is used for pushing the telescopic rod to be outwards opened.
Preferably, the control mechanism further comprises a pressing plate fixedly connected to the sliding plate, a slope is arranged at the bottom end of the pressing plate, and after the sleeve moves upwards, the pressing plate contacts with the driven plate and pushes the driven plate to move downwards.
Preferably, the pressure plate is located on the right side of the hypotenuse plate.
The beneficial effects of the invention are as follows:
1. According to the die casting die sliding block core pulling structure, the plurality of guide pieces are arranged on the outer side of the center rod, after the guide pieces contacted with the guide grooves are worn, the support springs push the guide pieces to extend outwards, so that the end parts of the guide pieces continuously prop against the guide grooves, the extending length of the guide pieces is automatically adjusted, the guide pieces are ensured to prop against the guide grooves, the moving stability of the sliding block pieces is improved, the problem that the moving precision is affected due to the fact that the guide pieces are worn is solved, after the center rod is rotated, different guide pieces can be automatically replaced to be contacted with the guide grooves, the frequency of replacing the guide mechanisms can be reduced, and the working time is longer.
2. According to the die casting die sliding block core-pulling structure, the arc-shaped tooth sections are arranged on the guide piece and are matched with the ratchet groups fixedly connected to the driving rod, and when the guide piece is worn and extends out to the top end, the ratchet groups are contacted with the arc-shaped tooth sections and drive the center rod to rotate, so that the function of automatically replacing the guide piece by utilizing the movement of the driving rod in the die casting process is realized.
3. According to the die casting die sliding block core pulling structure, the locating rod and the sleeve are arranged, after the guide piece is worn and extends out to the top end, the sleeve is pushed to move upwards through the push rod, the upward moving stroke of the sleeve is prolonged through the telescopic rod, the driven plate is matched with the bevel plate, after the driving rod moves, the bevel plate is contacted with the driven plate and drives the sleeve and the locating rod to move upwards together, the locating rod is separated from the locating groove, the function of contacting the locating state of the center rod before replacing the guide piece is achieved, after replacing the guide piece, the pressing plate is contacted with the driven plate and drives the locating rod to move downwards, the function of automatically fixing the center rod after replacing the guide piece is achieved, an electric system for monitoring the wear state of the guide piece and controlling the movement of the guide piece, the locating rod and the center rod is not needed, the degree of automation is high, the structure is simple, and the die casting die sliding block core pulling structure is convenient to use.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of a first embodiment of the present invention mated with a movable mold and a fixed mold;
FIG. 2 is an exploded view of a movable mold and a fixed mold according to an embodiment of the present invention;
FIG. 3 is a bottom view of the slider member;
FIG. 4 is a perspective view of the guide mechanism, positioning mechanism and control mechanism;
FIG. 5 is an exploded view of the guide mechanism;
FIG. 6 is a perspective view of a single guide and swivel;
FIG. 7 is a rear elevational view of the single guide engaged with the positioning mechanism;
FIG. 8 is an exploded view of the locating lever, sleeve and sled;
In the figure: 100. a movable mold; 200. a fixed mold; 300. an article; 301. a groove; 1. a slider member; 11. a side core; 12. a guide groove; 2. a driving rod; 3. a guide mechanism; 31. a central rod; 32. a guide member; 321. a straight plate; 322. an arc edge plate; 33. a support spring; 34. a latch section; 35. a swivel; 36. a claw; 37. a through groove; 38. an operation lever; 4. a positioning mechanism; 41. a positioning rod; 42. a positioning groove; 43. a positioning spring; 44. a sleeve; 45. a driven plate; 46. a bevel board; 47. a push rod; 5. a control mechanism; 51. a slide plate; 52. a ratchet group; 53. arc tooth sections; 54. a telescopic rod; 55. an extension spring; 56. and (5) pressing plates.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Embodiment one: as shown in fig. 1-5, in the embodiment of the present invention, a slide core pulling mechanism of a die casting mold is disposed on a movable mold 100 of the die casting mold, and includes a slide member 1 and a driving rod 2, wherein the slide member 1 is movably disposed inside the movable mold 100, a side core 11 is disposed inside the slide member 1, an inclined guide groove 12 is disposed on a side wall of the slide member 1, the driving rod 2 is movably inserted inside the movable mold 100, one end of the driving rod 2 is slidably connected with the slide member 1, the other end of the driving rod 2 extends to an outside of the movable mold 100, and further includes a guide mechanism 3 disposed inside the movable mold 100, the guide mechanism 3 is inserted inside the guide groove 12, and the guide mechanism 3 includes:
a center rod 31 rotatably provided inside the movable mold 100;
A plurality of guide pieces 32 movably inserted on the outer side of the central rod 31, wherein the plurality of guide pieces 32 are uniformly distributed along the annular side of the central rod 31;
and a supporting spring 33 for pushing the guide member 32 to protrude outward and against the inner wall of the guide groove 12.
Specifically, in the metal die casting process, the shapes of a movable die 100, a fixed die 200 and a die-cast product 300 used in die casting are shown in fig. 1-2, a material port is arranged in the fixed die 200, guide grooves 12 are formed in the front side and the rear side of a sliding block piece 1, two sliding block pieces 1 are taken as an example for illustration, the movable die 100 is positioned on the right side of the fixed die 200, two sliding block pieces 1 are arranged in the movable die 100, a side core 11 is used for die casting grooves 301 on the upper side and the lower side of a product 300, the movable die 100 is started to move leftwards, so that the movable die 100 and the fixed die 200 are clamped, then materials are injected into a cavity between the sliding block pieces 1 and the fixed die 200, the product 300 is die-cast, then the die 100 is moved rightwards, the side core 11 is inserted into the grooves 301, therefore, the product 300 cannot fall off in the movable die 100, at this moment, a driving rod 2 is started to move leftwards, the two sliding block pieces 1 are driven by the driving rod 2 to move leftwards along the guide grooves 12, the sliding block pieces 1 are simultaneously far away from the product 300, the side core-pulling piece 11 is separated from the grooves 301, and then the product 300 can fall off downwards, and the product can be removed; it should be noted that, in this embodiment, the movable mold 100 and the fixed mold 200 are selected to be placed vertically, and the movable mold 100 and the fixed mold 200 may be selected to be placed horizontally according to specific production conditions.
In the moving process of the sliding block piece 1, the moving track of the sliding block piece 1 is mainly limited by the cooperation of the guide mechanism 3 and the guide groove 12, the conventional guide mechanism 3 adopts a structure of a single guide post, after long-term work, the guide post is easy to wear, a larger gap appears between the guide mechanism 3 and the guide groove 12, and further deviation is caused in the moving of the sliding block piece 1, the moving precision is reduced, the size precision of the die-casting product 300 is influenced, therefore, a plurality of guide pieces 32 are arranged on the outer side of the center rod 31, for the single-group guide mechanism 3, only the upper right corner and the lower left corner of the guide piece 32 are respectively contacted with the upper inner wall and the lower inner wall of the guide groove 12, after the guide piece 32 contacted with the guide groove 12 is worn, the support spring 33 pushes the guide piece 32 to extend outwards, so that the end part of the guide piece 32 continuously abuts against the guide groove 12, the extending length of the guide piece 32 is automatically adjusted, the abutting of the guide piece 32 against the guide groove 12 is ensured, the moving stability of the sliding block piece 1 is improved, and the moving precision is influenced due to the wear of the guide piece 32 is improved.
The guide post is traditional as an organic whole structure, and the guide post needs whole change after wearing and tearing, in this embodiment, when single guide piece 32 wearing and tearing to unable continuous adjustment use, rotate center rod 31 for adjacent guide piece 32 rotate to with guide slot 12 inner wall contact, so, a plurality of guide pieces 32 can carry out the direction work in proper order, and operating time is longer, when changing, also only need change the guide piece 32 that produces wearing and tearing, need not to change whole guiding mechanism 3, has reduced use cost.
As shown in fig. 2-6, the guide member 32 includes a straight plate 321 and a curved edge plate 322, the straight plate 321 is movably inserted into the central rod 31, the curved edge plate 322 abuts against the inner wall of the guide slot 12, and the guide mechanism 3 further includes: a latch section 34 fixedly connected to the straight plate 321; a swivel 35 rotatably provided in the movable mold 100, the swivel 35 being sleeved on the outer side of the center rod 31; the claws 36 are uniformly distributed on the swivel 35, the claws 36 are of a unidirectional rotation structure, the claws 36 are respectively clamped with the claw sections 34, and the claws 36 are used for preventing the guide piece 32 from shrinking inwards.
Specifically, the straight plate 321 can extend outwards, and the claw 36 and the latch section 34 prevent the straight plate 321 from moving inwards and shrinking, so that the contact stability of the guide piece 32 and the guide groove 12 is ensured, and the guide stability is further improved. Fastening means such as a bayonet lock may be provided above the swivel 35 so that the swivel 35 is kept stationary.
As shown in fig. 2 to 6, the guide mechanism 3 further includes: a through groove 37 formed in the straight plate 321; the movable operation rod 38 is inserted in the movable mold 100, the end part on the operation rod 38 is provided with a plurality of oblique sides, and after the operation rod 38 moves, the oblique sides of the end part are contacted with the through groove 37 and drive the plurality of guide members 32 to synchronously retract inwards.
Specifically, taking fig. 5 as an example, in the initial state, the operating rod 38 and the straight plate 321 are staggered back and forth and do not contact with each other, when the guide mechanism 3 and the guide groove 12 are installed together, the operating rod 38 is moved backward, a slope is arranged at the rear side end of the operating rod 38, the moving operating rod 38 contacts with the through groove 37 and drives the straight plate 321 to retract inwards, so that the guide piece 32 is retracted, the guide piece 32 can be inserted into the guide groove 12, after the installation, the operating rod 38 is moved forward, the operating rod 38 is separated from the through groove 37, and the guide piece 32 automatically extends outwards and props against the inner wall of the guide groove 12 under the pushing of the supporting spring 33, so that the guide work is performed.
As shown in fig. 2-5, the positioning mechanism 4 is further included, and the positioning mechanism 4 includes: a positioning rod 41 slidably disposed in the movable mold 100; a plurality of positioning grooves 42 uniformly distributed on the annular side of the central rod 31; a positioning spring 43 for pushing the positioning rod 41 to insert into the positioning groove 42 at the top end.
Specifically, the positioning rod 41 is located above the central rod 31, and after the positioning rod 41 is inserted into the positioning slot 42, the central rod 31 can be fixed, so that the central rod 31 is prevented from rotating, and the contact stability of the guide piece 32 and the guide slot 12 is improved.
As shown in fig. 2-7, further comprising a control mechanism 5, said control mechanism 5 comprising: a sliding plate 51 slidably disposed in the movable mold 100, the sliding plate 51 being fixedly connected to the driving rod 2; a ratchet group 52 provided at the bottom end of the slide plate 51; the guide member 32 extends outwards to drive the arc-shaped tooth segment 53 to contact with the ratchet group 52, and the ratchet group 52 unidirectionally drives the arc-shaped tooth segment 53 to rotate.
Specifically, in the die casting process, the driving rod 2 moves left and right back and forth, in the initial state, the arc tooth segment 53 is located below the ratchet tooth set 52, at this time, the ratchet tooth set 52 is not in contact with the arc tooth segment 53, the end of the guide member 32 automatically stretches out after being worn, after the upper guide member 32 stretches out to the topmost end, the guide member 32 also drives the arc tooth segment 53 to move up to the top end, the positioning rod 41 is moved away from the positioning groove 42, after the driving rod 2 moves, the ratchet tooth set 52 is in contact with the arc tooth segment 53 and drives the center rod 31 to rotate, so that the next guide member 32 rotates to be in contact with the inner wall of the guide groove 12, and the function of automatically replacing the guide member 32 is realized.
As shown in fig. 2 to 8, the positioning mechanism 4 further includes: a sleeve 44 movably sleeved on the outer side of the positioning rod 41, wherein a step for limiting the positioning rod 41 is arranged in the sleeve 44; a driven plate 45 provided outside the sleeve 44; a hypotenuse plate 46 fixedly connected to the top end of the slide plate 51; and a push rod 47 fixedly connected to the arc-shaped tooth segment 53, wherein the push rod 47 is used for pushing the sleeve 44 to move upwards, and after the sleeve 44 moves upwards, the bevel edge plate 46 contacts with the driven plate 45 and pushes the sleeve 44 and the positioning rod 41 to move upwards to be separated from the top end of the positioning groove 42.
Specifically, the sleeve 44 can slide up and down relative to the positioning rod 41 within a certain range, that is: when the sleeve 44 moves upwards from the bottom end, the sleeve 44 can drive the positioning rod 41 to move upwards together after moving for a certain distance, otherwise, the sleeve 44 can drive the positioning rod 41 to move downwards together after moving downwards for a certain distance; in the initial state, the driven plate 45 is positioned below the slide plate 51 and is not in contact with the hypotenuse plate 46; when the guide piece 32 extends outwards, the sleeve 44 is driven to move upwards by the push rod 47, the positioning rod 41 is not moved until the guide piece 32 extends outwards to the top end, and the positioning rod 41 is always inserted into the positioning groove 42; after the sleeve 44 has moved up a distance, the step in the sleeve 44 contacts the positioning rod 41, and then the sleeve 44 moves up to drive the positioning rod 41 up together.
When the guide piece 32 extends outwards to the top, the driven plate 45 moves to the upper side of the sliding plate 51, after the driving rod 2 moves, the bevel edge plate 46 is contacted with the driven plate 45 and pushes the driven plate 45 to move upwards, so that the sleeve 44 and the positioning rod 41 are driven to move upwards together, the positioning rod 41 is separated from the positioning groove 42, then the ratchet group 52 is contacted with the upwards-moving arc tooth segment 53 and drives the center rod 31 to rotate, and therefore, the functions of releasing the positioning state of the center rod 31 and replacing the guide piece 32 are automatically achieved by utilizing the movement of the driving rod 2 in the die casting process, an electrical system for monitoring the abrasion state of the guide piece 32 and controlling the movement of the guide piece 32, the positioning rod 41 and the center rod 31 is not required to be additionally arranged, and the die casting device is high in automation degree, simple in structure and convenient to use.
As shown in fig. 4, the push rods 47 are offset from the positioning rods 41.
Specifically, the push rod 47 is offset from the positioning rod 41 back and forth, and the positioning rod 41 is not in contact with the push rod 47 all the time so as not to interfere with the rotation of the center rod 31.
Embodiment two: as shown in fig. 2-8, comparative example one, wherein another embodiment of the present invention is: the control mechanism 5 further includes: the telescopic rod 54, one end of the telescopic rod 54 is movably hinged with the sleeve 44, the other end of the telescopic rod 54 is movably hinged with the movable mould 100, and the telescopic rod 54 is inclined; an extension spring 55 for urging the telescopic rod 54 to be outwardly opened.
Specifically, as shown in fig. 4 and 8, in the initial state, the telescopic link 54 is kept in an inclined state by the urging of the extension spring 55, the right end of the telescopic link 54 is inclined downward, and the sleeve 44 is located at the bottom end of its moving range; the guide member 32 drives the sleeve 44 to move upwards after extending upwards, meanwhile, the right end of the telescopic rod 54 deflects upwards, and after the right end of the telescopic rod 54 is higher than the left end of the telescopic rod 54, the right end of the telescopic rod 54 continues to deflect upwards and rapidly under the pushing of the extension spring 55, so that the function of rapidly prolonging the upward movement of the sleeve 44 is achieved, the driven plate 45 moves to the position above the sliding plate 51, and the inclined plate 46 can smoothly push the driven plate 45, the sleeve 44 and the positioning rod 41 to move upwards.
As shown in fig. 2-7, the control mechanism 5 further includes a pressing plate 56 fixedly connected to the sliding plate 51, a slope is provided at a bottom end of the pressing plate 56, and after the sleeve 44 moves up, the pressing plate 56 contacts with the driven plate 45 and pushes the driven plate 45 to move down.
As shown in fig. 4, the pressure plate 56 is located to the right of the hypotenuse plate 46.
Specifically, in fig. 4, the driving lever 2 moves from right to left, and correspondingly, in fig. 7, the driving lever 2 moves from left to right. Taking fig. 4 as an example, when the guide member 32 is replaced, the guide member 32 moves up to the top, after the driving rod 2 moves left, the sleeve 44 and the positioning rod 41 are pushed by the bevel board 46 to move up, so that the positioning rod 41 is separated from the positioning groove 42, then the ratchet group 52 contacts with the arc tooth segment 53 to drive the center rod 31 to rotate, so that the other guide member 32 rotates to contact with the inner wall of the guiding groove 12, then the pressing board 56 contacts with the driven board 45 again and presses the driven board 45, the sleeve 44 and the positioning rod 41 to move down, so that the positioning rod 41 is reinserted into the positioning groove 42, the rotated center rod 31 is fixed, and the function of automatically fixing the center rod 31 after the replacement of the guide member 32 is completed is realized.
Working principle: starting the movable die 100 to move leftwards to enable the movable die 100 and the fixed die 200 to be clamped, then injecting materials into a cavity between the sliding block piece 1 and the fixed die 200, die-casting a product 300, then moving the movable die 100 rightwards, and inserting a side core 11 into the groove 301 because of the existence of the groove 301, so that the product 300 can be blocked in the movable die 100 and cannot fall off, at the moment, starting a driving rod 2 to move leftwards, driving the driving rod 2 to drive the two sliding block pieces 1 to move along the guide grooves 12, and keeping away from the product 300 while the sliding block pieces 1 move leftwards to enable the side core 11 to be separated from the groove 301, and then enabling the product 300 to fall off downwards to realize the function of core pulling and demoulding.
In the moving process of the sliding block piece 1, after the guide piece 31 contacted with the guide groove 12 is worn, the support spring 33 pushes the guide piece 32 to extend outwards, so that the end part of the guide piece 32 continuously abuts against the guide groove 12, the extending length of the guide piece 32 is automatically adjusted, the guide piece 32 is ensured to abut against the guide groove 12, the moving stability of the sliding block piece 1 is improved, and the problem that the moving precision is influenced due to the abrasion of the guide piece 32 is solved.
When the upper guide member 32 extends outwards to the top end, the driven plate 45 moves to the upper side of the sliding plate 51, after the driving rod 2 moves, the bevel edge plate 46 firstly contacts with the driven plate 45 and pushes the driven plate 45 to move upwards, so that the sleeve 44 and the positioning rod 41 are driven to move upwards together, the positioning rod 41 is separated from the positioning groove 42, then the ratchet group 52 contacts with the arc-shaped tooth segment 53 which moves upwards and drives the central rod 31 to rotate, the functions of automatically removing the positioning state of the central rod 31 and replacing the guide member 32 are achieved in the working process, and then the pressing plate 56 contacts with the driven plate 45 again and presses the driven plate 45, the sleeve 44 and the positioning rod 41 to move downwards, so that the positioning rod 41 is reinserted into the positioning groove 42, and the rotated central rod 31 is fixed.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a die casting die slider structure of loosing core, this slider mechanism of loosing core sets up on die casting die's movable mould (100), including slider spare (1) and actuating lever (2), slider spare (1) activity is established the inside of movable mould (100), the inside of slider spare (1) is equipped with side core (11), guide way (12) of slope have been seted up to the lateral wall of slider spare (1), actuating lever (2) activity is pegged graft inside movable mould (100), the one end of actuating lever (2) with slider spare (1) sliding connection, the other end of actuating lever (2) extends to the outside of movable mould (100), its characterized in that: the device also comprises a guide mechanism (3) arranged inside the movable die (100), the guide mechanism (3) is inserted into the guide groove (12), and the guide mechanism (3) comprises:
a center rod (31) rotatably provided inside the movable die (100);
A plurality of guide pieces (32) movably inserted at the outer side of the central rod (31), wherein the guide pieces (32) are uniformly distributed along the annular side of the central rod (31);
And a supporting spring (33) for pushing the guide member (32) to extend outwards and against the inner wall of the guide groove (12).
2. The die casting die slider core pulling structure according to claim 1, wherein: the guide piece (32) comprises a straight plate (321) and an arc edge plate (322), the straight plate (321) is movably inserted into the center rod (31), the arc edge plate (322) props against the inner wall of the guide groove (12), and the guide mechanism (3) further comprises:
A latch section (34) fixedly connected to the straight plate (321);
A swivel (35) rotatably arranged in the movable mould (100), wherein the swivel (35) is sleeved on the outer side of the central rod (31);
The clamping claws (36) are uniformly distributed on the swivel (35), the clamping claws (36) are of unidirectional rotation structures, the clamping claws (36) are respectively clamped with the clamping tooth sections (34), and the clamping claws (36) are used for preventing the guide piece (32) from shrinking inwards.
3. The die casting die slider core pulling structure according to claim 2, wherein: the guide mechanism (3) further comprises:
A through groove (37) formed in the straight plate (321);
The movable operation rod (38) is movably inserted into the movable die (100), a plurality of bevel edges are arranged at the end part on the operation rod (38), and after the operation rod (38) moves, the bevel edges at the end part are contacted with the through groove (37) and drive a plurality of guide pieces (32) to synchronously shrink inwards.
4. A die casting die slider core pulling structure according to claim 3, wherein: also comprises a positioning mechanism (4), wherein the positioning mechanism (4) comprises:
A positioning rod (41) arranged in the movable mould (100) in a sliding manner;
a plurality of positioning grooves (42) uniformly distributed on the annular side of the central rod (31);
and a positioning spring (43) for pushing the positioning rod (41) to be inserted into the positioning groove (42) at the top end.
5. The die casting die slider core pulling structure according to claim 4, wherein: further comprises a control mechanism (5), the control mechanism (5) comprising:
a sliding plate (51) arranged in the movable mould (100) in a sliding manner, wherein the sliding plate (51) is fixedly connected with the driving rod (2);
A ratchet group (52) arranged at the bottom end of the sliding plate (51);
the guide piece (32) stretches out to drive the arc-shaped tooth section (53) to be in contact with the ratchet group (52), and the ratchet group (52) drives the arc-shaped tooth section (53) to rotate unidirectionally.
6. The die casting die slider core pulling structure according to claim 5, wherein: the positioning mechanism (4) further comprises:
a sleeve (44) movably sleeved on the outer side of the positioning rod (41), wherein a step for limiting the positioning rod (41) is arranged in the sleeve (44);
A driven plate (45) provided outside the sleeve (44);
The bevel edge plate (46) is fixedly connected to the top end of the sliding plate (51);
And the push rod (47) is fixedly connected to the arc-shaped tooth section (53), the push rod (47) is used for pushing the sleeve (44) to move upwards, and after the sleeve (44) moves upwards, the bevel edge plate (46) is contacted with the driven plate (45) and pushes the sleeve (44) and the positioning rod (41) to move upwards to be separated from the positioning groove (42) at the top end.
7. The die casting die slider core pulling structure according to claim 6, wherein: the push rods (47) and the positioning rods (41) are distributed in a staggered manner.
8. The die casting die slider core pulling structure according to claim 7, wherein: the control mechanism (5) further comprises:
The telescopic rod (54) is movably hinged with the sleeve (44), the other end of the telescopic rod (54) is movably hinged with the movable die (100), and the telescopic rod (54) is inclined;
An extension spring (55) for pushing the telescopic rod (54) to be opened outwards.
9. The die casting die slider core pulling structure according to claim 8, wherein: the control mechanism (5) further comprises a pressing plate (56) fixedly connected to the sliding plate (51), a slope is arranged at the bottom end of the pressing plate (56), and after the sleeve (44) moves upwards, the pressing plate (56) is in contact with the driven plate (45) and pushes the driven plate (45) to move downwards.
10. The die casting die slider core pulling structure according to claim 9, wherein: the pressure plate (56) is located to the right of the hypotenuse plate (46).
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| CN106984791A (en) * | 2017-04-27 | 2017-07-28 | 深圳市品成金属制品有限公司 | Side core-pulling die casting |
| CN211616471U (en) * | 2019-12-30 | 2020-10-02 | 宁波奥克斯电气股份有限公司 | Core pulling mechanism and injection mold |
| CN213353326U (en) * | 2020-06-24 | 2021-06-04 | 惠达卫浴股份有限公司 | Pulling damage prevention structure of core-pulling sliding block |
| WO2022227256A1 (en) * | 2021-04-27 | 2022-11-03 | 海宁欧派工贸有限公司 | High-strength pvc ceiling injection molding device |
| CN115301923A (en) * | 2022-10-10 | 2022-11-08 | 宁波臻至机械模具有限公司 | Core pulling mechanism and core pulling method of die-casting die |
| CN116689727A (en) * | 2023-05-26 | 2023-09-05 | 东莞鸿图精密压铸有限公司 | Die-casting inclined core-pulling locking structure and die-casting die |
-
2024
- 2024-04-12 CN CN202410440510.4A patent/CN118023498B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984791A (en) * | 2017-04-27 | 2017-07-28 | 深圳市品成金属制品有限公司 | Side core-pulling die casting |
| CN211616471U (en) * | 2019-12-30 | 2020-10-02 | 宁波奥克斯电气股份有限公司 | Core pulling mechanism and injection mold |
| CN213353326U (en) * | 2020-06-24 | 2021-06-04 | 惠达卫浴股份有限公司 | Pulling damage prevention structure of core-pulling sliding block |
| WO2022227256A1 (en) * | 2021-04-27 | 2022-11-03 | 海宁欧派工贸有限公司 | High-strength pvc ceiling injection molding device |
| CN115301923A (en) * | 2022-10-10 | 2022-11-08 | 宁波臻至机械模具有限公司 | Core pulling mechanism and core pulling method of die-casting die |
| CN116689727A (en) * | 2023-05-26 | 2023-09-05 | 东莞鸿图精密压铸有限公司 | Die-casting inclined core-pulling locking structure and die-casting die |
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| CN118023498B (en) | 2024-07-23 |
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