CN114082919B - Direct-pressing mold locking device of die casting machine and application method thereof - Google Patents
Direct-pressing mold locking device of die casting machine and application method thereof Download PDFInfo
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- CN114082919B CN114082919B CN202111387765.1A CN202111387765A CN114082919B CN 114082919 B CN114082919 B CN 114082919B CN 202111387765 A CN202111387765 A CN 202111387765A CN 114082919 B CN114082919 B CN 114082919B
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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
- B22D17/26—Mechanisms or devices for locking or opening dies
- B22D17/266—Mechanisms or devices for locking or opening dies hydraulically
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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
- B22D17/2084—Manipulating or transferring devices for evacuating cast pieces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention relates to the technical field of metal die casting molding, in particular to a direct-pressing die locking device of a die casting machine and a use method thereof. The movable die is arranged on the middle plate, and the die locking mechanism is arranged on the frame and drives the movable die and the fixed die to cover and lock with each other. The direct-pressure die locking device of the die casting machine has the effects of larger die locking force, simple structure, larger capacity and smaller volume.
Description
Technical Field
The invention relates to the technical field of metal die casting molding, in particular to a direct-pressing die locking device of a die casting machine and a use method thereof.
Background
The metal die casting is a process of filling molten metal into a die cavity of a die casting mold at a high speed under a high pressure, and solidifying the molten metal in a high pressure state to form a metal die casting, and is one of the most efficient metal die casting methods at present.
At present, a double-toggle device is mostly adopted for die locking of a traditional die casting machine, specifically, the double-toggle device die casting machine directly pushes a cross head of a toggle device by a die closing cylinder, and pushes a movable die plate to move forwards by the toggle device, and when a front supporting arm and a rear supporting arm are in a straight line, the toggle mechanism reaches a dead point position of the toggle mechanism. Because the toggle mechanism can amplify the thrust of the mould closing cylinder, the required mould locking force can be achieved when the movable mould plate and the static mould plate are locked.
However, with the rapid development of global economy, the volume of die casting products is continuously increased, and the die locking force of a required die casting machine is also continuously increased, but the traditional double-toggle die locking device cannot meet the die casting machine with larger die locking force, and the double-toggle die locking device is complex, has smaller capacity and larger volume.
Disclosure of Invention
In order to solve the problems that the double-toggle mode locking device cannot meet large mode locking force, and the double-toggle mode locking device is complex, small in capacity and large in size, the application provides a direct-pressure mode locking device of a die casting machine and a using method of the direct-pressure mode locking device.
In a first aspect, the present application provides a direct-pressing mold locking device of a die casting machine, which adopts the following technical scheme:
the direct-pressing mold locking device of the die casting machine comprises a frame, a head plate, a middle plate and a mold locking mechanism, wherein the head plate is fixedly connected to the frame, a fixed mold is arranged on the head plate, the middle plate is connected to the frame in a sliding manner, a movable mold is arranged on the middle plate, the mold locking mechanism is arranged on the frame, and the mold locking mechanism drives the movable mold and the fixed mold to cover and lock each other;
the mold locking mechanism comprises a straight quick oil cylinder arranged on the frame, a tail plate fixedly connected to the output end of the straight quick oil cylinder and a mold locking oil cylinder fixedly connected to the tail plate, wherein the tail plate is connected to the frame in a sliding manner, and the output end of the mold locking oil cylinder is fixedly connected with the middle plate.
By adopting the technical scheme, when the mode locking operation is needed, a worker can start the direct-speed oil cylinder at first, and at the moment, the direct-speed oil cylinder drives the middle plate and the tail plate to synchronously move towards the direction close to the head plate; when the fixed die and the movable die are mutually covered, the die locking oil cylinder is started, and the die locking oil cylinder pushes the middle plate again, so that the movable die and the fixed die are locked, and the required die locking force is obtained.
Compared with a crankshaft structure, the mold locking oil cylinder can achieve the mold locking force required by mold locking, the structure of the mold locking oil cylinder is simpler, the volume is relatively smaller, and therefore the occupied space of the die casting machine is effectively reduced, and the capacity modulus is increased.
Optionally, the mode locking mechanism further includes at least one reset cylinder fixedly connected to the tail plate, the reset cylinder is spaced from the mode locking cylinder, and an output end of the reset cylinder is fixedly connected with the middle plate.
Through adopting above-mentioned technical scheme, when cover half and movable mould lid each other, open mode locking hydro-cylinder and reset hydro-cylinder, at this moment, mode locking hydro-cylinder and reset hydro-cylinder can promote the medium plate in step to provide bigger mode locking power to movable mould and cover half, further increase the accuracy and the stability of movable mould and cover half mode locking.
Optionally, the device further comprises at least one limiting mechanism, wherein the limiting mechanism comprises a tie bar fixedly connected to the head plate and an opening and closing oil cylinder assembly arranged on the tail plate, one end of the tie bar, far away from the head plate, sequentially penetrates through the middle plate and the tail plate, and the tie bar controls the movement of the tail plate through the opening and closing oil cylinder assembly.
Through adopting above-mentioned technical scheme, before opening mode locking hydro-cylinder and reset hydro-cylinder, the staff can open the hydro-cylinder subassembly that opens and shuts, and the tie-bar just can restrict the removal of tailboard through the hydro-cylinder subassembly that opens and shuts afterwards, and then when mode locking hydro-cylinder and reset hydro-cylinder promote the medium plate, effectively reduce the possibility that the tailboard takes place to retreat, improve the stability and the precision of cover half and movable mould mode locking indirectly. In addition, because the diameter of the tie bar is relatively small, the processing difficulty is relatively small and the cost is relatively low when the tie bar is prepared.
Optionally, the opening and closing cylinder assembly includes the symmetrical open and close cylinder that sets up in the both sides of tie bar and fixed connection in open and close half open limit nut of the output of cylinder, open and close cylinder fixed connection in on the tailboard, two open and close the cylinder forces two half open limit nut mutually lid is and is locked tie bar is held tightly.
Through adopting above-mentioned technical scheme, when needs restrict the removal of tailboard, the staff can open two hydro-cylinders that open and shut, and two hydro-cylinders that open and shut drive two half nuts and overlap each other and hold tightly the locking to the tie-bar to impel the tie-bar to carry out spacingly to the tailboard through two half nuts, effectively reduce the possibility that the tailboard takes place to retreat, improve the stability and the precision of cover half and movable mould mode locking indirectly.
Optionally, the outer peripheral surface of the tie bar is provided with a groove, and when the two half-open side nuts are mutually covered, the two half-open side nuts are mutually meshed with the groove.
Through adopting above-mentioned technical scheme, when two half open limit nuts hug tightly the lock to the tiebar, because two half open limit nuts and slot intermeshing, the cell wall of slot can further restrict the removal of two half open limit nuts to effectively increase the locking effect of tiebar and half open limit nut, further reduce the possibility that the tailboard takes place to retreat, further improve the stability and the precision of cover half and movable mould mode locking.
Optionally, a bracket is arranged on the rack, at least one connecting rod is arranged on the bracket, a fixing hole is formed in one end, far away from the head plate, of the tie bar, and the connecting rod is fixedly connected in the fixing hole; the utility model discloses a tie bar, including the tie bar, the tie bar is provided with the tie bar nut, be provided with at least one tie bar nut on the head board, tie bar keep away from the one end of support through tie bar nut and tie bar nut clamp plate fixed connection in on the head board.
Through adopting above-mentioned technical scheme, because the support is fixed the one end of tiebar through the connecting rod, and the head board is fixed the other end of tiebar through tiebar nut and tiebar nut clamp plate, so when carrying out mode locking or die sinking to movable mould and cover half, support and head board can be spacing to the tiebar, effectively reduce the possibility that the tiebar takes place the drunkenness, indirectly improve the stability and the accuracy of movable mould and cover half mode locking or die sinking.
Optionally, the die casting device further comprises a feeding mechanism for conveying die casting products, the feeding mechanism comprises a carrying plate and a driving piece, the carrying plate is connected to the frame in a sliding manner, the carrying plate is located below the movable die and the fixed die, the driving piece drives the carrying plate to slide in a reciprocating manner, the carrying plate is used for loading the die casting products, and the carrying plate transfers the die casting products out of the frame;
the driving piece comprises a driving rack fixedly connected to the middle plate, a driving gear rotationally connected to the rack, a driven gear rotationally connected to the rack and a driven rack fixedly connected to the carrying plate, wherein the driving rack is meshed with the driving gear, and the driven rack is matched with the driven gear and rotates synchronously.
Through adopting above-mentioned technical scheme, when carrying out the mode locking operation to movable mould and cover half, the medium plate is synchronous to order about driving gear through the drive rack and takes place to rotate, and driving gear orders about driven rack through driven gear and takes place to slide, and driven rack drives the carrier plate that is loaded with die casting product and removes to the direction that breaks away from the frame to accomplish the transfer operation to die casting product voluntarily, effectively reduce the operation degree of difficulty that shifts die casting product, indirectly improve the security that shifts die casting product.
Optionally, the feeding mechanism further includes a pushing member, the pushing member includes a conveyor belt disposed on a side wall of the frame, a transfer cylinder disposed on the conveyor belt, and a pushing plate disposed at an output end of the transfer cylinder, when the driving member transfers the die-casting product out of the frame through the carrying plate, the conveyor belt is disposed below the carrying plate, and the transfer cylinder transfers the die-casting product to the conveyor belt through the pushing plate.
Through adopting above-mentioned technical scheme, when carrying the thing board and breaking away from the frame with the die-casting product, transfer cylinder can be through the push plate with the die-casting product transfer to the conveyer belt on, and the conveyer belt carries out the assembly line with the die-casting product and shifts, effectively improves the transfer efficiency to the die-casting product. In addition, because the transfer die-casting product adopts the mode of propelling movement, so the distance between year thing board and the conveyer belt is less relatively, effectively reduces the height that die-casting product falls, indirectly reduces the possibility that die-casting product takes place the damage.
In a second aspect, the application provides a method for using a direct-pressure die locking device of a die casting machine, which adopts the following technical scheme:
1. and (3) locking a mold: firstly, starting the straight quick oil cylinder, and driving the middle plate and the tail plate to synchronously move in a direction approaching to the head plate by the straight quick oil cylinder;
when the fixed die and the movable die are mutually covered, opening two opening and closing oil cylinders, wherein the two opening and closing oil cylinders drive the two half-open side nuts to mutually cover and drive the two half-open side nuts to finally tightly lock the tie bar;
then the mold locking oil cylinder and the reset oil cylinder are started, and the mold locking oil cylinder and the reset oil cylinder push the middle plate again, so that the movable mold and the fixed mold are locked, and the required mold locking force is obtained;
2. and (5) die sinking: firstly, opening the mode locking oil cylinder and the reset oil cylinder, wherein the mode locking oil cylinder removes pressure on the middle plate, and the reset oil cylinder transfers the middle plate to an unlocking position;
then, opening two opening and closing oil cylinders, wherein the two opening and closing oil cylinders drive the two half-opening side nuts to be separated from each other, and the two half-opening side nuts are driven to be separated from the tie bar finally;
and then starting the straight quick oil cylinder, and transferring the middle plate and the tail plate to a die opening position by the straight quick oil cylinder so as to separate the movable die from the fixed die.
By adopting the technical scheme, for the crankshaft structure, the mode locking oil cylinder and the reset oil cylinder can achieve the mode locking force required by the mode locking, the structure of the mode locking oil cylinder and the structure of the reset oil cylinder are simpler, the volume is relatively smaller, and the occupied space of the die casting machine is effectively reduced and the capacity modulus is increased.
The application method of the direct-pressure die locking device of the die casting machine adopts the following technical scheme:
s1, locking a die: firstly, starting the direct-acting oil cylinder, wherein the direct-acting oil cylinder drives the middle plate and the tail plate to synchronously move in the direction close to the head plate, at the moment, the middle plate drives the driving gear to rotate through the driving rack, the driving gear drives the driven rack to slide through the driven gear, and the driven rack drives the carrying plate loaded with the die-casting product to move in the direction away from the rack; then, starting the transfer oil cylinder, and transferring the die-casting product to the conveyor belt through the push plate by the transfer oil cylinder, so as to finish automatic transfer of the die-casting product;
when the fixed die and the movable die are mutually covered, the die locking oil cylinder is started, and the die locking oil cylinder pushes the middle plate again, so that the movable die and the fixed die are locked, and the required die locking force is obtained;
s2, die sinking: firstly, starting the mold locking oil cylinder, unloading the pressure on the middle plate by the mold locking oil cylinder, and then starting the direct-speed oil cylinder, wherein the direct-speed oil cylinder transfers the middle plate and the tail plate to a mold opening position so as to separate the movable mold from the fixed mold;
at this time, the medium plate drives the driving gear to rotate through the driving rack again, the driving gear drives the driven rack to slide through the driven gear, the driven rack drives the carrying plate to slide to the movable die and the lower part of the fixed die, and then, the die casting product can be demolded and transferred to the carrying plate.
Through adopting above-mentioned technical scheme, when needs carry out the die sinking operation to movable mould and cover half, the medium plate can shift to the below of movable mould and cover half through driving rack, driving gear, driven gear and driven tooth strip movable carrier plate, alright carry out the drawing of patterns to the die casting product afterwards. When the movable die and the fixed die are required to be subjected to die locking operation, the middle plate can drive the carrying plate to be separated from the frame, and finally the carrying plate is transferred onto the conveyor belt through the transfer oil cylinder and the pushing plate, so that the production efficiency of die casting products is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. compared with a crankshaft structure, the mold locking oil cylinder can achieve the mold locking force required by mold locking, the structure of the mold locking oil cylinder is simpler, the volume is relatively smaller, and the occupied space of the die casting machine is effectively reduced and the capacity modulus is increased;
2. because the diameter of the tie bar is relatively small, the processing difficulty is relatively small and the cost is relatively low when the tie bar is prepared;
3. when carrying out the mode locking operation to movable mould and cover half, feeding mechanism can be automatic shifts the product that die casting accomplished, effectively reduces the operation degree of difficulty of shifting the die casting product, improves the security of shifting the die casting product indirectly.
Drawings
Fig. 1 is a schematic structural view of a direct-pressure die locking device of a die casting machine.
Fig. 2 is a top view of the direct press mold clamping device of the die casting machine.
Fig. 3 is an exploded view of the spacing mechanism.
Fig. 4 is a schematic diagram of a locking state of the opening and closing cylinder assembly and the tie bar.
Fig. 5 is an exploded view of the feed mechanism and the frame.
Fig. 6 is a schematic view of the structure of the feeding mechanism at the time of die opening.
Fig. 7 is a schematic view of the structure of the feeding mechanism at the time of mold locking.
Reference numerals illustrate: 1. a frame; 2. a head plate; 3. a middle plate; 4. a mold locking mechanism; 5. a limiting mechanism; 6. a feeding mechanism; 11. a bracket; 12. a connecting rod; 13. a fixing hole; 14. a tie bar nut; 15. a tie bar nut press plate; 21. a fixed mold; 31. a movable mold; 41. a direct-fast oil cylinder; 42. a tail plate; 43. a mode locking oil cylinder; 44. resetting the oil cylinder; 51. a tie bar; 52. an opening and closing cylinder assembly; 521. an opening and closing cylinder; 522. half-open edge nuts; 53. a groove; 61. a carrying plate; 62. a driving member; 63. a pushing member; 621. a drive rack; 622. a drive gear; 623. a driven gear; 624. a driven rack; 625. a transmission gear; 6221. an upper tooth portion; 6222. a lower tooth portion; 631. a conveyor belt; 632. a transfer cylinder; 633. a pushing plate; 634. a guide block; 635. a guide surface.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-7.
The embodiment of the application discloses a direct-pressure mode locking device of a die casting machine. Referring to fig. 1, the direct-pressure die locking device of the die casting machine comprises a frame 1, a head plate 2, a middle plate 3, a die locking mechanism 4, a limiting mechanism 5 and a feeding mechanism 6.
Wherein, the head plate 2 is fixedly connected with the end part of the upper end surface of the frame 1, and the side wall of the head plate 2 is fixedly connected with a fixed die 21; the middle plate 3 is connected to the upper end surface of the frame 1 in a sliding manner, a movable die 31 is fixedly connected to one side, close to the head plate 2, of the middle plate 3, and the fixed die 21 and the movable die 31 are arranged oppositely. For convenience of description, the side closer to the movable mold 31 or the fixed mold 21 is defined as an inner wall, and the side farther from the movable mold 31 or the fixed mold 21 is defined as an outer wall.
The mold locking mechanism 4 and the feeding mechanism 6 are both arranged on the frame 1, the limiting mechanisms 5 are arranged on the mold locking mechanism 4, and four limiting mechanisms 5 are arranged on the mold locking mechanism 4 at uniform intervals in the circumferential direction, for example. Specifically, the mold locking mechanism 4 is used for driving the movable mold 31 and the fixed mold 21 to cover and lock each other, the four limiting mechanisms 5 are used for controlling the movement of the mold locking mechanism 4, and the feeding mechanism 6 is used for carrying out pipeline transportation on the products after die casting.
Referring to fig. 1 and 2, the mold locking mechanism 4 includes a vertical cylinder 41, a tail plate 42, a mold locking cylinder 43 and at least one reset cylinder 44, one end of the frame 1 away from the head plate 2 is fixedly connected with a bracket 11, and the vertical cylinder 41 is fixedly connected to an inner wall of the bracket 11. The tail plate 42 is fixedly connected to the output end of the vertical cylinder 41, the mold locking cylinder 43 and the reset cylinder 44 are fixedly connected to the inner wall of the tail plate 42, and the output end of the mold locking cylinder 43 and the output end of the reset cylinder 44 are fixedly connected with the outer wall of the middle plate 3.
In the present embodiment, four reset cylinders 44 are provided, and four reset cylinders 44 are provided at four corners of the tail plate 42, respectively, while a mold clamping cylinder 43 is provided at the center of the tail plate 42. When the movable mold 31 and the fixed mold 21 need to be locked, the worker can first turn on the straight-acting cylinder 41, and at this time, the straight-acting cylinder 41 drives the middle plate 3 and the tail plate 42 to move synchronously in a direction approaching the head plate 2. When the movable mold 31 and the fixed mold 21 are mutually covered, the worker can open the mold locking cylinder 43 and the four reset cylinders 44, and the mold locking cylinder 43 and the four reset cylinders 44 push the middle plate 3 again, so that the movable mold 31 and the fixed mold 21 are locked and the required mold locking force is obtained.
However, it is apparent that when the mold locking cylinder 43 and the four reset cylinders 44 push the middle plate 3, the mold locking cylinder 43 and the four reset cylinders 44 may also perform work on the tail plate 42 under the action of the reaction force, and in order to limit the movement of the tail plate 42, in this embodiment, the four limiting mechanisms 5 are disposed at four corners of the tail plate 42, so that the stability and the accuracy of the mold locking of the fixed mold 21 and the movable mold 31 are indirectly improved through the limiting effect of the limiting mechanisms 5 on the tail plate 42.
Referring to fig. 1 and 3, the limiting mechanism 5 includes a tie bar 51 fixedly connected to the inner wall of the head plate 2 and an opening and closing cylinder assembly 52 fixedly connected to the outer wall of the tail plate 42, and one end of the tie bar 51 away from the head plate 2 sequentially penetrates through the middle plate 3, the tail plate 42 and the opening and closing cylinder assembly 52 and is finally fixedly connected with the bracket 11.
Specifically, the inner wall of the bracket 11 is fixedly connected with four connecting rods 12, and one end of the tie bar 51, which is far away from the head plate 2, is provided with a fixing hole 13, and the connecting posts are fixedly connected in the fixing hole 13. Four angle fixedly connected with tie bar nuts 14 of the outer wall of head board 2, the equal fixedly connected with tie bar nut clamp plate 15 of outer wall of every tie bar nut 14, tie bar 51 keep away from the one end of support 11 and pass through tie bar nut 14 and tie bar nut clamp plate 15 fixed connection on head board 2 to when movable mould 31 carries out mode locking or die sinking operation with cover half 21, support 11 and head board 2 can carry out spacingly to the removal of tie bar 51, effectively reduce tie bar 51 and take place the possibility of drunkenness. The open-close cylinder assembly 52 can lock the tie bar 51, so that the tie bar 51 is caused to indirectly limit the movement of the tail plate 42 through the open-close cylinder assembly 52.
Referring to fig. 3 and 4, in particular, the opening and closing cylinder assembly 52 includes opening and closing cylinders 521 symmetrically disposed at both sides of the tie bar 51 and half-open side nuts 522 fixedly connected to the output ends of the opening and closing cylinders 521. The two opening and closing cylinders 521 are disposed on the outer wall of the tail plate 42, and the two opening and closing cylinders 521 drive the two half-open nuts 522 to cover each other. The groove 53 is formed in the outer rear face of the middle portion of the tie bar 51, when the two opening and closing cylinders 521 drive the two half-open side nuts 522 to cover each other, the two half-open side nuts 522 tightly lock the tie bar 51, and the two half-open side nuts 522 are meshed with the groove 53, so that the groove wall of the groove 53 can be caused to limit the movement of the tail plate 42 through the half-open side nuts 522.
Referring to fig. 1 and 5, the feeding mechanism 6 includes a carrier plate 61, a driving member 62 and a pushing member 63, wherein the carrier plate 61 is used for loading a die casting product, and the carrier plate 61 is slidingly connected to an upper end surface of the frame 1 through a sliding rail structure. The driving member 62 is disposed on the frame 1, and the driving member 62 is used for transferring the carrier plate 61 below the moving mold 31 and the fixed mold 21 or separating the carrier plate 61 from the frame 1. The pushing member 63 is disposed on a side wall of the frame 1, and the pushing member 63 is used for carrying out pipeline transfer on the die casting product on the carrier plate 61.
Specifically, the driving piece 62 includes a driving rack 621, a driving gear 622, a driven gear 623, a driven rack 624 and a transmission gear 625, the driving rack 621 is fixedly connected to the inner wall of the middle plate 3, the driving gear 622, the driven gear 623, the driven rack 624 and the transmission gear 625 are all rotatably connected to the upper end face of the frame 1, and the driven rack 624 is fixedly connected to the lower end face of the carrier plate 61.
The driving rack 621 is relatively perpendicular to and non-coplanar with the driven rack 624, the driving gear 622 includes a lower toothed portion 6222 drivingly connected to the upper end surface of the frame 1 and an upper toothed portion 6221 fixedly connected to the upper end surface of the lower toothed portion 6222,
the driving rack 621 is meshed with the upper tooth portion 6221, the driven rack 624 is meshed with the driven gear 623, the transmission gear 625 is disposed between the upper tooth portion 6221 and the driven gear 624, and the upper tooth portion 6221 and the driven gear 624 are meshed with the transmission gear 625.
Referring to fig. 5 and 6, when the moving mold 31 and the fixed mold 21 are opened, the middle plate 3 drives the driving gear 622 to rotate through the driving rack 621, the driving gear 622 drives the driving gear 625 to rotate, the driving gear 625 drives the driven gear 623 to rotate, the driven gear 623 drives the driven rack 624 to slide, and the driven rack 624 drives the carrier plate 61 to slide along the direction a and finally slide to the position right below the moving mold 31 and the fixed mold 21, and then, the die casting product can be demolded and transferred to the carrier plate 61.
Referring to fig. 5 and 7, when the movable mold 31 and the fixed mold 21 are locked, the middle plate 3 drives the driving gear 622 to rotate again through the driving rack 621, the driving gear 622 drives the driving gear 625 to rotate, the driving gear 625 drives the driven gear 623 to rotate, the driven gear 623 drives the driven rack 624 to slide, and the driven rack 624 drives the carrier plate 61 to separate from the frame 1 along the direction b, so that automatic feeding of the die-casting product is completed.
Referring to fig. 6 and 7, the pushing member 63 includes a conveyor belt 631 fixedly connected to a side wall of the frame 1, a transfer cylinder 632 fixedly connected to an end of the conveyor belt 631, and a pushing plate 633 fixedly connected to an output end of the transfer cylinder 632. When the carrier plate 61 transfers the die-casting product out of the frame 1, the carrier plate 61 is located between the pushing plate 633 and the conveyor belt 631, i.e. the conveyor belt 631 is located right below the carrier plate 61, at this time, a worker can start the transfer cylinder 632, and the transfer cylinder 632 transfers the die-casting product to the conveyor belt 631 along the direction c through the pushing plate 633, thereby completing the pipeline transportation of the die-casting product.
In addition, in order to promote the transfer of the die-casting product from the carrier plate 61 to the conveyor belt 631 stably, in this embodiment, the pushing member 63 further includes a guide block 634 fixedly connected to the frame body of the conveyor belt 631, the upper end surface of the guide block 634 is provided with a guide surface 635, and the guide surface 635 is mutually communicated with the upper end surface of the carrier plate 61. The guide surface 635 gradually approaches the belt 631 along the direction c.
In this embodiment, the above-mentioned fixed connection may be implemented by conventional fixed connection methods such as screw connection, interference insertion, welding, integral molding, and fixing by bolts. The rotary connection can be realized by adopting a conventional rotary connection mode such as a pin shaft rotary connection mode or a bearing rotary connection mode according to actual practice.
The implementation principle of the direct-pressure die locking device of the die casting machine is as follows:
when the movable mold 31 and the fixed mold 21 need to be subjected to the mold locking operation, a worker can first open the straight cylinder 41, and the straight cylinder 41 drives the middle plate 3 and the tail plate 42 to approach in the direction approaching the head plate 2, and at this time, the middle plate 3 slides the carrying plate 61 along the direction b through the driving member 62. Then, the worker can start the pushing cylinder, and the pushing cylinder can transfer the die-casting product to the conveyor belt 631 along the direction c through the pushing plate 633 and the guide block 634, so that the assembly line transfer of the die-casting product is completed.
When the fixed die 21 and the movable die 31 are mutually covered, two opening and closing oil cylinders 521 are opened, and the two opening and closing oil cylinders 521 drive two half-opening side nuts 522 to tightly lock the tie bar 51. After that, the mold locking cylinder 43 and the return cylinder 44 are opened, and the mold locking cylinder 43 and the return cylinder 44 push the middle plate 3 again, thereby locking the movable mold 31 and the fixed mold 21 and obtaining the required mold locking force.
When the movable mold 31 and the fixed mold 21 need to be opened, a worker can first lock the mold cylinder 43 and reset the cylinder 44, the mold cylinder 43 removes the pressure on the middle plate 3, and the reset cylinder 44 transfers the middle plate 3 to the mold-unlocking position; then, the two opening and closing cylinders 521 are opened, and the two opening and closing cylinders 521 promote the two half-open side nuts 522 to be finally separated from the tie bar 51; and then the vertical cylinder 41 is started, and the vertical cylinder 41 transfers the middle plate 3 and the tail plate 42 to the mold opening position, so that the movable mold 31 is separated from the fixed mold 21. At this time, the middle plate 3 slides the carrier plate 61 again in the direction a to the position right below the movable mold 31 and the fixed mold 21 by the driving member 62, and then the die-cast product can be released and transferred onto the carrier plate 61 by the transfer device such as the pinch grip.
The embodiment of the application also discloses a method for using the direct-pressure die locking device of the die casting machine, referring to fig. 6 and 7, the method for using the direct-pressure die locking device of the die casting machine comprises the following steps:
and (3) locking a mold: firstly, a direct-acting oil cylinder 41 is started, the direct-acting oil cylinder 41 drives a middle plate 3 and a tail plate 42 to synchronously move towards the direction close to a head plate 2, at the moment, the middle plate 3 drives a driving gear 622 to rotate through a driving rack 621, the driving gear 622 drives a transmission gear 625 to rotate, the transmission gear 625 drives a driven gear 623 to rotate, the driven gear 623 drives a driven rack 624 to slide, and the driven rack 624 drives a carrier plate 61 loaded with a die-casting product to move along a direction b; then, the transfer cylinder 632 is started, and the transfer cylinder 632 transfers the die-casting product to the conveyor belt 631 along the finding c through the pushing plate 633 and the guide block 634, so as to complete the automatic transfer of the die-casting product;
when the fixed die 21 and the movable die 31 are mutually covered, two opening and closing oil cylinders 521 are opened, the two opening and closing oil cylinders 521 drive two half-open side nuts 522 to mutually cover and drive the two half-open side nuts 522 to finally lock the tie bar 51 in a clasping manner, and the groove part of the groove 53 indirectly limits the tail plate 42 through the two half-open side nuts 522;
then the mold locking oil cylinder 43 and the reset oil cylinder 44 are opened, and the mold locking oil cylinder 43 and the reset oil cylinder 44 push the middle plate 3 again, so that the movable mold 31 and the fixed mold 21 are locked, and the required mold locking force is obtained;
and (5) die sinking: firstly, a mode locking oil cylinder 43 and a reset oil cylinder 44 are started, the mode locking oil cylinder 43 removes pressure on the middle plate 3, and the reset oil cylinder 44 transfers the middle plate 3 to an unlocking position; then, the two opening and closing cylinders 521 are opened, the two opening and closing cylinders 521 drive the two half-open side nuts 522 to separate from each other, and the two half-open side nuts 522 are driven to be finally separated from the tie bar 51;
then, opening the straight-fast oil cylinder 41, and transferring the middle plate 3 and the tail plate 42 to a die opening position by the straight-fast oil cylinder 41 so as to separate the movable die 31 from the fixed die 21; at this time, the middle plate 3 drives the driving gear 622 to rotate again through the driving rack 621, the driving gear 622 drives the driving gear 625 to rotate, the driving gear 625 drives the driven gear 623 to rotate, the driven gear 623 drives the driven rack 624 to slide, and the driven rack 624 drives the carrier plate 61 to slide along the direction a and finally slide to the lower parts of the movable mold 31 and the fixed mold 21, and then, the die casting product can be demolded and transferred to the carrier plate 61 through the clamping and grabbing and other transfer devices.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes of the device, shape and principle of the present application should be covered in the protection scope of the present application.
Claims (5)
1. A direct-pressing mode locking device of a die casting machine is characterized in that: the die-casting die comprises a frame (1), a head plate (2), a middle plate (3), a die locking mechanism (4) and a feeding mechanism (6) for conveying die-casting products, wherein the head plate (2) is fixedly connected to the frame (1), a fixed die (21) is arranged on the head plate (2), the middle plate (3) is connected to the frame (1) in a sliding manner, a movable die (31) is arranged on the middle plate (3), the die locking mechanism (4) is arranged on the frame (1), and the movable die (31) and the fixed die (21) are mutually covered and locked by the die locking mechanism (4);
the mold locking mechanism (4) comprises a straight quick oil cylinder (41) arranged on the frame (1), a tail plate (42) fixedly connected with the output end of the straight quick oil cylinder (41) and a mold locking oil cylinder (43) fixedly connected with the tail plate (42), wherein the tail plate (42) is connected to the frame (1) in a sliding manner, and the output end of the mold locking oil cylinder (43) is fixedly connected with the middle plate (3);
the feeding mechanism (6) comprises a carrying plate (61) and a driving piece (62), the carrying plate (61) is connected to the frame (1) in a sliding manner, the carrying plate (61) is positioned below the movable die (31) and the fixed die (21), the driving piece (62) drives the carrying plate (61) to slide back and forth, the carrying plate (61) is used for loading die-casting products, and the carrying plate (61) transfers the die-casting products out of the frame (1);
the driving piece (62) comprises a driving rack (621) fixedly connected to the middle plate (3), a driving gear (622) rotatably connected to the rack (1), a driven gear (623) rotatably connected to the rack (1) and a driven rack (624) fixedly connected to the carrying plate (61), the driving rack (621) is meshed with the driving gear (622), and the driven rack (624) is matched with the driven gear (623) and rotates synchronously;
when the movable die (31) and the fixed die (21) are opened, the middle plate (3) drives the driving gear (622) to rotate through the driving rack (621), the driving gear (622) drives the transmission gear (625) to rotate, the transmission gear (625) drives the driven gear (623) to rotate, the driven gear (623) drives the driven rack (624) to slide, the driven rack (624) drives the carrier plate (61) to slide and finally slide to the position right below the movable die (31) and the fixed die (21), and then, a die casting product can be demolded and transferred to the carrier plate (61);
when the movable mold (31) and the fixed mold (21) are locked, the middle plate (3) drives the driving gear (622) to rotate through the driving rack (621), the driving gear (622) drives the transmission gear (625) to rotate, the transmission gear (625) drives the driven gear (623) to rotate, the driven gear (623) drives the driven rack (624) to slide, and the driven rack (624) drives the carrier plate (61) to be separated from the rack (1);
the feeding mechanism (6) further comprises a pushing piece (63), the pushing piece (63) comprises a conveying belt (631) arranged on the side wall of the frame (1), a transmission oil cylinder (632) arranged on the conveying belt (631) and a pushing plate (633) arranged at the output end of the transmission oil cylinder (632), when the driving piece (62) transfers a die-casting product out of the frame (1) through the carrying plate (61), the conveying belt (631) is positioned below the carrying plate (61), and the transmission oil cylinder (632) transfers the die-casting product onto the conveying belt (631) through the pushing plate (633); the mold locking mechanism (4) further comprises at least one reset oil cylinder (44) fixedly connected to the tail plate (42), the reset oil cylinder (44) is mutually spaced from the mold locking oil cylinder (43), and the output end of the reset oil cylinder (44) is fixedly connected with the middle plate (3); still include at least one stop gear (5), stop gear (5) including fixed connection in tie-bar (51) on head board (2) and set up in open and shut hydro-cylinder subassembly (52) on tailboard (42), tie-bar (51) keep away from the one end of head board (2) wears to establish in proper order medium plate (3) and tailboard (42), tie-bar (51) are through open and shut hydro-cylinder subassembly (52) are right the removal of tailboard (42) is controlled.
2. The direct-pressure die locking device of the die casting machine according to claim 1, characterized in that: the open-close cylinder assembly (52) comprises open-close cylinders (521) symmetrically arranged on two sides of a tie bar (51) and half-open side nuts (522) fixedly connected to the output ends of the open-close cylinders (521), the open-close cylinders (521) are fixedly connected to the tail plate (42), and the two open-close cylinders (521) force the two half-open side nuts (522) to cover each other and clamp and lock the tie bar (51).
3. The direct-pressure die locking device of the die casting machine according to claim 2, characterized in that: the outer peripheral surface of the tie bar (51) is provided with a groove (53), and when the two half-open side nuts (522) are mutually covered, the two half-open side nuts (522) are mutually meshed with the groove (53).
4. The direct-pressure die locking device of the die casting machine according to claim 1, characterized in that: the bracket (11) is arranged on the frame (1), at least one connecting rod (12) is arranged on the bracket (11), a fixing hole (13) is formed in one end, far away from the head plate (2), of the tie bar (51), and the connecting rod (12) is fixedly connected in the fixing hole (13); be provided with at least one tie bar nut (14) on head board (2), be provided with tie bar nut (14) clamp plate on tie bar nut (14), tie bar (51) keep away from the one end of support (11) through tie bar nut (14) and tie bar nut (14) clamp plate fixed connection in on head board (2).
5. A method of using the direct compression mold locking device of the die casting machine as claimed in any one of claims 2 to 3, comprising the steps of:
1. and (3) locking a mold: firstly, starting the straight quick oil cylinder (41), wherein the straight quick oil cylinder (41) drives the middle plate (3) and the tail plate (42) to synchronously move towards the direction close to the head plate (2);
when the fixed die (21) and the movable die (31) are mutually covered, two opening and closing oil cylinders (521) are opened, the two opening and closing oil cylinders (521) drive two half-open side nuts (522) to be mutually covered, and the two half-open side nuts (522) are driven to finally clamp and lock the tie bar (51);
then the mold locking oil cylinder (43) and the reset oil cylinder (44) are opened, and the mold locking oil cylinder (43) and the reset oil cylinder (44) push the middle plate (3) again, so that the movable mold (31) and the fixed mold (21) are locked, and the required mold locking force is obtained;
2. and (5) die sinking: firstly, opening the mold locking oil cylinder (43) and the reset oil cylinder (44), wherein the mold locking oil cylinder (43) removes pressure on the middle plate (3), and the reset oil cylinder (44) transfers the middle plate (3) to an unlocked mold position;
then opening two opening and closing oil cylinders (521), wherein the two opening and closing oil cylinders (521) drive the two half-open side nuts (522) to be separated from each other, and drive the two half-open side nuts (522) to be finally separated from the tie bar (51);
and then, starting the quick oil cylinder (41), and transferring the middle plate (3) and the tail plate (42) to a die opening position by the quick oil cylinder (41), so that the movable die (31) is separated from the fixed die (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111387765.1A CN114082919B (en) | 2021-11-22 | 2021-11-22 | Direct-pressing mold locking device of die casting machine and application method thereof |
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| CN202111387765.1A CN114082919B (en) | 2021-11-22 | 2021-11-22 | Direct-pressing mold locking device of die casting machine and application method thereof |
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| CN114082919B true CN114082919B (en) | 2023-07-28 |
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| CN115106511A (en) * | 2022-08-30 | 2022-09-27 | 南通博莹机械铸造有限公司 | Die opening and closing mechanism for die casting machine |
| CN115592086B (en) * | 2022-12-14 | 2023-03-10 | 宁波金耀机械有限公司 | Controller shell die-casting equipment |
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| CN2552679Y (en) * | 2002-06-20 | 2003-05-28 | 力劲机械（深圳）有限公司 | Device for opening-closing nut |
| CN201264349Y (en) * | 2008-05-28 | 2009-07-01 | 东莞亿东机器有限公司 | Center contracting brake type clamping mechanism of injection moulding machine |
| CN202965121U (en) * | 2012-09-18 | 2013-06-05 | 深圳领威科技有限公司 | Vertical-compression-type mould clamping mechanism for injection molding machines and die casting machines |
| CN204892898U (en) * | 2015-07-15 | 2015-12-23 | 佛山市高明建强科技有限公司 | Cold -chamber die casting machine of safe and stable type |
| CN105538622A (en) * | 2016-01-22 | 2016-05-04 | 曹海平 | Die opening, closing and locking mechanism and method |
| CN107471575B (en) * | 2017-06-15 | 2019-05-24 | 宁波海天金属成型设备有限公司 | A kind of clamp force adjustment system and method for adjustment |
| CN107598116A (en) * | 2017-08-15 | 2018-01-19 | 力劲机械（深圳）有限公司 | A kind of conveyer belt type automatic blanking device and automatic blanking method for die casting machine |
| CN207772348U (en) * | 2018-01-10 | 2018-08-28 | 广州市大中包装实业有限公司 | A kind of adjustable clamping apparatus |
| CN207931038U (en) * | 2018-02-11 | 2018-10-02 | 宜得世股份有限公司 | A kind of two plate vertical compression type mould-locking structures |
| JP3223780U (en) * | 2019-08-21 | 2019-10-31 | 宜得世股▲ふん▼有限公司 | Direct pressure mold lock structure with two die plates |
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