CN118682094B - A molding device for die casting production - Google Patents
A molding device for die casting production Download PDFInfo
- Publication number
- CN118682094B CN118682094B CN202411177968.1A CN202411177968A CN118682094B CN 118682094 B CN118682094 B CN 118682094B CN 202411177968 A CN202411177968 A CN 202411177968A CN 118682094 B CN118682094 B CN 118682094B
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- Prior art keywords
- die
- fixed
- gate
- die casting
- waste
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- 238000004512 die casting Methods 0.000 title claims abstract description 91
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000000465 moulding Methods 0.000 title claims abstract description 18
- 239000002699 waste material Substances 0.000 claims abstract description 79
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 238000005266 casting Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 description 18
- 230000000694 effects Effects 0.000 description 12
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012768 molten material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
- B22D17/10—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled with horizontal press motion
-
- 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
- B22D17/2076—Cutting-off equipment for sprues or ingates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2272—Sprue channels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a molding device for die casting production, which belongs to the technical field of die casting molding and comprises a workbench, a fixed seat, a fixed die, a movable die, a gate component, a pushing component and a waste discharging component, wherein the fixed seat is arranged on the workbench, the fixed seat is provided with a feeding port, the fixed die is arranged on the fixed seat, the feeding port of the fixed seat can be communicated with a die casting cavity of the fixed die, the movable die can slide on the fixed seat and can be matched with the fixed die for use, the production efficiency of die casting can be improved through the arrangement of double stations, the die casting can be separated from gate waste through the arrangement of the gate component, the waste is discharged, the trouble of manually removing the gate waste is avoided, and the production efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of die casting molding, and particularly relates to a molding device for die casting production.
Background
The die casting is a part for die casting, namely a die casting machine of a die casting machine with a casting die is used, the metal such as copper, zinc, aluminum or aluminum alloy which is heated to be liquid state is poured into a feed port of the die casting machine, and after the upper die and the lower die on the die casting machine are matched for die casting, the copper, zinc, aluminum part or aluminum alloy part with the shape and the size limited by the die casting die is cast.
The utility model discloses a high-density die-casting forming device and die-casting technology of aluminum alloy die-casting in the chinese patent of bulletin number CN113333711B of authorizing, which comprises a base plate, the last fixed surface of bottom plate is provided with the U-shaped board, the last fixed surface of U-shaped board is provided with the motor, the lower fixed surface of the last curb plate of U-shaped board is provided with the L-shaped board, be provided with forming mechanism between L-shaped board and the U-shaped board, first bar mouth has been seted up to the inside of L-shaped board, the second bar mouth has been seted up to the inside of the right side board of U-shaped board, forming mechanism's right side is fixed to be provided with the connecting rod, the right-hand member of connecting rod passes through first bar mouth and second bar mouth and extends right, the pole wall of connecting rod respectively with the inner wall sliding connection of first bar mouth and second bar mouth, the right-hand member of connecting rod is fixedly provided with the installation pole. This patent document enables two dies to be used alternately, and can facilitate cleaning of the dies.
Although the convenience of mould clearance has been effectively promoted to above-mentioned file, still rely on manual operation at the part drawing of patterns link after the shaping, this not only has increased labour cost, still probably influences production efficiency. In addition, the die casting molding device adopted at present has a remarkable limitation in the demolding process, namely, the gate waste cannot be automatically removed, which means that the gate needs to be manually removed by additionally arranging subsequent processing steps, which certainly prolongs the whole processing period of the workpiece and forms certain challenges for production efficiency and product quality management. Therefore, it is necessary to explore and develop more advanced demolding technologies to realize an integrated process of automated demolding and waste removal, thereby significantly improving production efficiency and product quality.
Disclosure of Invention
The invention aims to provide a molding device for die casting production, and aims to solve the problems that demolding still needs manual work and pouring gate waste cannot be automatically removed in the prior art, and production efficiency and progress are affected.
The invention provides a molding device for die casting production, which comprises a workbench, a fixed seat, a fixed mold, a movable mold, a pouring gate component, a pushing component and a waste discharge component, wherein the fixed seat is arranged on the workbench;
The fixed die is arranged on the fixed base, and a feeding port of the fixed base can be communicated with the inside of a die casting cavity of the fixed die;
The movable die can slide on the fixed base and can be matched with the fixed die for use;
the pouring gate component is arranged on the fixed die and is positioned at a pouring gate of the die casting cavity close to the fixed die, the pouring gate component has a demolding state and a waste discharge state, the demolding state can separate a die casting finished product from pouring gate waste, and the waste discharge state can discharge the pouring gate waste from the pouring gate;
The pushing component slides in the fixed die, and is used in a demolding state of the pouring gate component, so that the die casting finished product can be pushed to be separated from the pouring gate waste;
the waste discharge assembly is used in a waste discharge state of the sprue assembly, and can discharge sprue waste from the sprue.
The invention has the beneficial effects that the diameter of the pouring gate component is reduced when the die casting is in a cooling state, after the die casting is cooled, the pushing component can separate the die casting from the pouring gate waste, so that the effects of separating and removing the pouring gate waste are achieved, and the waste discharge component can remove the pouring gate waste positioned in the pouring gate, so that the pouring gate waste can be automatically removed while demoulding, the trouble of manually removing the pouring gate waste is avoided, and the production efficiency is improved.
According to a further technical scheme, the pouring gate component comprises two shielding pieces, protrusions are arranged on the shielding pieces, a supporting block is arranged on the fixing base, the fixed die can slide in the fixing base, when the supporting block abuts against the protrusions, the pouring gate component is in a demolding state at the moment, and when the supporting block is away from the protrusions, the pouring gate component is in a waste discharge state.
The blanking piece has the advantages that the blanking piece is abutted against the bulge in the demoulding state, so that the diameter of the pouring gate can be reduced, the pouring gate waste is easier to break from a thinner place and is easier to remove from the die casting, and the removed pouring gate waste can be discharged from the pouring gate in the waste discharging state.
According to a further technical scheme, the fixed die comprises two symmetrically arranged bottom dies, a pipeline is connected between the two bottom dies, a stop block is arranged in the middle of the pipeline, blanking holes positioned on two sides of the stop block are formed in the pipeline, the movable die can push the fixed die to slide in the fixed base during die assembly, and when the fixed die slides in the fixed base, one blanking hole can be communicated with a feeding hole of the fixed base.
The double-station die has the advantages that through the reciprocating sliding of the two bottom dies, the two blanking holes are alternately communicated with the feeding hole, so that pouring can be alternately performed in the die cavities on the two bottom dies, and the double-station die achieves the effect of double-station work.
According to the further technical scheme, the first elastic piece is arranged on the fixed seat, and the first elastic piece can enable the protrusion to abut against the abutting block by pushing the fixed die.
According to a further technical scheme, the pushing component comprises a sliding column and a jacking column connected with the sliding column, the sliding column penetrates through two ends of the fixed die, the sliding column can be pushed to slide in the fixed die when the movable die is closed, two jacking columns are arranged in two bottom dies, and the jacking column can be pushed to slide to separate a die casting from the die casting cavity.
The injection molding machine has the advantages that the injection molding machine can separate the molded die casting from the die casting cavity through the pushing component, and separate the die casting from the sprue waste.
According to a further technical scheme, the waste discharge assembly comprises two air pipes arranged on the fixed seat, two air passages are arranged in the check block and can be respectively communicated with two sides of the check block, and when the movable die is in contact with the fixed die and can be poured into the die cavity, the air pipes are communicated with the other air passage.
The pouring gate waste material discharging device has the advantage that the pouring gate waste material can be discharged from the pouring gate through the arrangement of the waste discharging component.
According to the further technical scheme, one end of the air passage, which is far away from the air pipe, is provided with the one-way valve assembly, so that air in the air pipe can only enter the pipeline.
According to a further technical scheme, the shielding piece comprises a retaining plate and a baffle, the bulge is arranged on the retaining plate, the plane of the retaining plate on one side of the bulge is higher than that of the retaining plate on the other side, when casting is conducted into the die casting cavity, the retaining block can be abutted against the plane on the higher side of the retaining plate, the baffle can extend into a pouring gate of the die casting cavity, the two baffles are arranged in a staggered mode, a shrinkage opening is formed in one end, close to each other, of the two baffles, and a second elastic piece for pushing the baffle to be far away from the pouring gate of the die casting cavity is further arranged in the fixed die.
According to the further technical scheme, the abutting block is connected with the adjusting bolt, and the adjusting bolt can adjust the abutting depth of the abutting block and the abutting plate.
According to a further technical scheme, a driving device for driving the movable die to move is arranged on the workbench.
Compared with the prior art, the invention has the beneficial effects that:
1. Through the setting of duplex position, can improve the production efficiency to the die casting, through the setting of runner subassembly, can follow the die casting and separate from the runner waste material to discharge the waste material, avoided the trouble of manual removal runner waste material, thereby promote production efficiency.
2. When pouring is carried out on the die cavity, the size of the pouring gate can be adjusted through the pouring gate component, so that the problems that the flow resistance is increased by too small pouring gate, the die filling time is prolonged, the die filling of a casting is insufficient, and defects such as cold insulation and shrinkage cavity are avoided.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is an isometric cross-sectional view of an embodiment of the invention;
FIG. 3 is a cross-sectional view along a horizontal plane of an embodiment of the present invention;
FIG. 4 is a cross-sectional view at a spool of an embodiment of the present invention;
FIG. 5 is a schematic view showing a mounting structure of a gate member according to an embodiment of the present invention;
FIG. 6 is a schematic view showing the mounting structure of the ejector member in the embodiment of the present invention;
FIG. 7 is a schematic view of a gate assembly according to an embodiment of the present invention;
FIG. 8 is an enlarged schematic view of the structure shown at A in FIG. 3;
fig. 9 is an enlarged schematic view of the structure at B in fig. 1.
In the figure, 1, a workbench, 2, a fixed seat, 21, a supporting block, 3, a fixed mold, 31, a bottom mold, 32, a pipeline, 33, a stop block, 34, a blanking hole, 4, a movable mold, 5, a gate assembly, 51, a shielding member, 511, a retaining plate, 512, a baffle, 513, a shrinkage opening, 514, a second elastic member, 515, an adjusting bolt, 52, a bulge, 6, a pushing component, 61, a sliding column, 62, a jacking column, 7, a waste discharging assembly, 71, an air pipe, 72, an air passage, 8, a first elastic member, 9, a one-way valve assembly and 10, a driving device.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the invention provides a molding device for die casting production, which comprises a workbench 1, a fixed seat 2, a fixed mold 3, a movable mold 4, a pouring gate assembly 5, a pushing component 6 and a waste discharging assembly 7, wherein the fixed seat 2 is horizontally arranged on the workbench 1 and is fixed on the workbench 1 through screws, a feeding port is arranged on the fixed seat 2, molten materials are added into the feeding port, and the materials are extruded into the fixed seat 2 through pressure equipment;
The fixed die 3 is rectangular and is arranged on the fixed base 2, and a feeding port of the fixed base 2 can be communicated with the inside of a die casting cavity of the fixed die 3, so that molten materials can enter the inside of the die casting cavity of the fixed die 3 through the feeding port, and the pouring effect is achieved;
the movable die 4 is fixedly connected with a slide bar, so that the slide bar penetrates through the fixed seat 2 and can slide in the fixed seat 2, the movable die 4 can slide on the fixed seat 2, and a die cavity is also arranged on the fixed die 3 and can be matched with the die cavity on the fixed die 3 for use;
The gate component 5 is arranged on the fixed die 3, the gate component 5 is positioned at a gate injection position close to a die casting cavity of the fixed die 3, the gate component 5 has two states, namely a demolding state and a waste discharge state, when the gate component 5 is in the demolding state, the gate component 5 can go deep into a part of a gate channel, so that the diameter of the gate waste close to one end of the die casting cavity is reduced, the gate waste is easier to break at one end with a smaller diameter, thereby facilitating separation between a die casting finished product and the gate waste, and when in the waste discharge state, the gate component 5 is far away from the inside of the gate channel, so that the gate component 5 can not shield the gate waste, and then the gate waste can be discharged from the gate through the effect of the waste discharge component 7;
The pushing component 6 slides in the fixed die 3, the pushing component 6 needs to be used in a demolding state of the gate component 5, and the pushing component 6 is used for demolding a die casting, so that a die casting finished product can be pushed to be separated from gate waste;
The waste discharge unit 7 is used in a state where the gate unit 5 discharges waste, and can discharge gate waste from the gate.
In the specific embodiment of the invention, the fixed die 3 and the movable die 4 of the die are clamped at first, then the melted material is injected from the feeding port of the fixed seat 2, the material is pressed into the die casting cavity of the fixed die 3 through the pressure equipment, after the injection is completed, the gate component 5 is in a demolding state, so that a part of the gate component 5 is positioned in the gate waste during condensation of the material, the shape of the gate waste is changed, one end of the gate waste is thinned, after the die casting is condensed, the die casting is demolded through the pushing component 6, the pushing force of the pushing component 6 is matched with the limit of the gate component 5 and the gate waste, so that the die casting and the gate waste can be deduced at the thinner end, the demolding effect is achieved, then the gate component 5 is changed into a waste discharge state, in this state, the limit of the gate component 5 is canceled for the gate waste, and then the gate waste can be discharged from the gate through the effect of the waste discharge component 7.
Referring to fig. 7, the gate assembly 5 includes two shielding members 51, the two shielding members 51 are disposed in mirror images, the two shielding members 51 can perform mirror image motion on the fixed mold 3, protrusions 52 are disposed on the two shielding members 51, the protrusions 52 are isosceles trapezoid, a supporting block 21 is disposed on the fixed seat 2, the fixed mold 3 can slide in the fixed seat 2, when the fixed mold 3 moves on the fixed seat 2, the supporting block 21 can slide to abut against the protrusions 52, a part of the shielding members 51 can be pushed into the gate, the gate assembly 5 is in a demolding state at this time, when the supporting block 21 and the protrusions 52 are away from each other, a part of the shielding members 51 is away from the gate, and the gate assembly 5 is in a waste discharging state.
When the novel plastic injection molding machine is used, the fixed mold 3 moves on the fixed seat 2, so that the shielding piece 51 on the fixed mold 3 and the abutting block 21 are driven to move relatively, the protrusion 52 is arranged on the shielding piece 51, therefore, when the abutting block 21 moves to the protrusion 52, the shielding piece 51 can be pushed to enter a part of a pouring gate, the state is in a demolding state, and when the abutting block 21 and the protrusion 52 are separated, the shielding piece 51 is reset, so that the shielding piece 51 is far away from the inside of the pouring gate, and the conversion of the waste discharge state is achieved.
Referring to fig. 2, 3, 5 and 9, the fixed mold 3 includes two symmetrically arranged bottom molds 31, a certain gap is provided between the two bottom molds 31, a pipe 32 is provided between the gap, the pipe 32 can be directly communicated with the inside of a die casting cavity on the bottom mold 31, the pipe 32 can be used for guiding injection materials into the die casting cavity, a stop block 33 is provided in the middle of the pipe 32, the stop block 33 can separate the left end and the right end of the pipe 32, the left end and the right end of the pipe 32 are not communicated with each other, blanking holes 34 positioned at the left end and the right end of the pipe 32 are provided at the left end and the right end of the stop block 33, the two blanking holes 34 can be respectively communicated with the left end and the right end of the pipe 32, the movable mold 4 can be propped against one side of the fixed mold 3 when the movable mold 4 is clamped, the fixed mold 3 is slid in the fixed seat 2, one of the fixed mold 3 is pushed into the inside the fixed seat 2, in this state, the blanking holes 34 communicated with the fixed mold 3 positioned inside the fixed mold 2 can be communicated with a feeding port of the fixed seat 2, and thus the materials can be fed into the cavity of the fixed mold 3 through the blanking port.
When the die casting device is used, one of the fixed dies 3 can be pushed into the fixed base 2 through the movement of the movable die 4, and at the moment, the blanking hole 34 corresponding to the fixed die 3 can be communicated with the feeding port of the fixed base 2, so that materials can enter the die casting cavity of the fixed die 3 through the blanking hole 34, and the die casting device achieves the effect of die cavity feeding.
Referring to fig. 3, a mounting lug is provided on the fixing base 2, a first elastic member 8 is provided on the mounting lug, one end of the first elastic member 8 is a compression spring, and is fixed on the mounting lug, an extension plate extending to the outside of the fixing base 2 is provided on the fixed die 3, the first elastic member 8 can push the fixed die 3 to move through the extension plate, and the protrusion 52 abuts against the abutment block 21, in this state, in order to enable the first elastic member 8 to push the fixed die 3 to move, therefore, the movable die 4 needs to move a certain distance in the direction of opening the die, and the movable die 4 moves while the movable die 4 moves, so that the fixed die 3 and the movable die 4 can be kept in a die-closing state, and leakage of materials is not caused until the protrusion 52 abuts against the abutment block 21, thereby enabling the gate assembly 5 to be kept in a die-releasing state.
Referring to fig. 4 and 6, four pushing members 6 are respectively and annularly arrayed on the fixed mold 3, the pushing members 6 comprise a sliding column 61 and a pushing column 62, the sliding column 61 and the pushing column 62 are mutually parallel and connected through a transverse connecting rod, the sliding column 61 penetrates through two ends of the fixed mold 3 and can slide in the sliding column 61, when the movable mold 4 performs mold closing operation, the movable mold 4 can prop against one end of the sliding column 61, the sliding column 61 can be pushed to slide in the fixed mold 3, the sliding column 61 can drive the pushing column 62 to move simultaneously, the pushing columns 62 are respectively positioned at two ends of the sliding column 61, and meanwhile, the sliding column 61 can slide into the die-casting cavity during sliding, so that when the sliding column 61 drives the pushing column 62 to move, a die-casting piece formed by cooling can be pushed away from the die-casting cavity through the pushing column 62, and because gate waste is limited by the gate assembly 5, the effect of separating the casting from the gate waste is achieved, in order to avoid the influence of the pushing column 62 on the surface 62 of the casting in a cooling state on the casting in the same plane as the die-casting surface.
Referring to fig. 2, 3 and 8, the waste discharge assembly 7 includes two air pipes 71 mounted on the fixing base 2, the two air pipes 71 are connected with an external air pump, air can be input into the air pipes 71, in addition, two air passages 72 are provided in the stop block 33, the two air passages 72 can be respectively communicated with two sides of the stop block 33, as shown in fig. 3, when the right movable mold 4 contacts the fixed mold 3 and can be poured into the mold cavity, the air pipes 71 can be communicated with the left air passages 72, air is injected into the left air passages 72, and air pressure blows off gate waste at a gate through the injection of the air, so that the waste discharge effect is achieved.
Referring to fig. 8, a check valve assembly 9 is disposed at an end of the air channel 72 away from the air tube 71, so that the air in the air tube 71 can only enter the pipeline 32, and the material solution is prevented from flowing back into the air channel 72.
Referring to fig. 7, the shielding member 51 includes a retaining plate 511 and a baffle 512, the baffle 512 is fixedly connected to the retaining plate 511, the retaining plate 511 and the baffle 512 are mutually perpendicular, the protrusion 52 is disposed on the retaining plate 511, the plane of the retaining plate 511 on one side of the protrusion 52 is higher than the plane of the retaining plate 511 on the other side, when pouring into a die casting cavity, the retaining block 21 can be abutted against the plane on the higher side of the retaining plate 511, so that the baffle 512 directly extends into a gate of the die casting cavity, when the gate assembly 5 is in a waste discharge state, the retaining block 21 is not abutted against the retaining plate 511, so as to ensure that the baffle 512 is located outside the gate, the two baffles 512 are staggered, one end of the two baffles 512 close to each other is provided with a shrinkage opening 513, the shrinkage openings 513 are V-shaped, the two shrinkage openings 513 are relatively disposed, and when the two shrinkage openings 513 are mutually close to each other and gradually overlap, the speed of discharging materials can be reduced, a second elastic piece 514 pushing the baffle 512 to be far away from the pouring gate of the die casting cavity is also arranged in the fixed die 3, the second elastic piece 514 is a compression spring (refer to fig. 3), one end of the second elastic piece 514 is fixedly connected with the abutting plate 511, the other end of the second elastic piece 514 is fixedly connected with the fixed die 3, the effect of resetting the abutting plate 511 is achieved through the second elastic piece 514, the abutting block 21 is connected with an adjusting bolt 515, the depth of the abutting block 21 abutting against the abutting plate 511 can be adjusted through rotating the adjusting bolt 515, the abutting block 21 can adjust the abutting depth of the abutting plate 511, the overlapping amount of the shrinkage opening 513 can be adjusted, the discharging speed of materials can be adjusted, the pouring gate discharging speed can be adjusted according to different materials, the die filling time is prevented from being long, the casting is insufficient in die filling, some problems of defects such as cold shut, shrinkage cavity and the like occur.
The workbench 1 is provided with a driving device 10 for driving the movable die 4 to move, the driving device 10 is a hydraulic cylinder, the fixed end of the hydraulic cylinder is fixed on the workbench 1, and the telescopic end is connected with the movable die 4, so that the purposes of driving the movable die 4 to open and close the die can be achieved.
The device is a double-station device, two stations can be used alternately (as shown in figure 3), when the device is used, the driving device 10 drives the right movable die 4 to move leftwards and to be matched with the fixed die 3, a sealing space is formed between the fixed die 3 and the movable die 4, the movable die 4 is attached to the fixed base 2, the blanking hole 34 on the right side corresponds to the feeding hole of the fixed base 2, the abutting block 21 abuts against the abutting plate 511 on the higher plane in this state and abuts against the abutting plate 511 on the right side of the bulge 52, at the moment, molten materials are injected into the feeding hole on the fixed base 2, and the raw materials are pressed into the inside of the die cavity through the blanking hole 34 by pressure equipment; when the inside of the mold cavity is filled with the material, the driving device 10 drives the movable mold 4 on the right side to move rightwards for a certain distance and then stop, in this state, the fixed mold 3 is abutted against the movable mold 4 through the action of the first elastic piece 8, so that the fixed mold 3 and the movable mold 4 are still in a mold closing state, the abutting piece 21 is abutted against the protrusion 52, one end of the baffle plate 512 of the shielding piece 51 enters the gate of the pipe 32, the baffle plate 512 is made to reduce the diameter of the gate of the pipe 32, the material at the gate of the pipe 32 and the gate is still in a molten state, so that the material does not interfere the baffle plate 512, then the material is kept still for a certain period of time, the mold cavity and the material in the pipe 32 are cooled and hardened, the driving device 10 is started again to drive the movable mold 4 on the right side to move rightwards, in this state, in the process of moving the movable mold 4 rightwards, the first elastic piece 8 is reset to a natural state, at this time the fixed mold 3 is not pushed by the first elastic piece 8, the abutting piece 21 can still be abutted against the protrusion 52, the movable mold 4 continues to move rightwards, so that the distance between the fixed mold 4 and the movable mold 3 is increased, meanwhile, the movable die 4 on the left side can prop against the left end of the sliding column 61, so that the sliding column 61 moves rightwards relative to the fixed die 3, the sliding column 61 drives the jacking column 62 to prop against one side surface of the cooled die casting, the die casting can be pushed down from the die cavity, and the sprue waste is limited by the prop plate 511 at the moment, and meanwhile, the diameter of one section of the sprue waste is reduced through the prop plate 511, so that the sprue waste can be torn off from the die casting when the jacking column 62 props against the die casting, the effect of separating the waste from the die casting is achieved, the die casting finished product after demoulding can automatically drop, and the die casting can be collected through components such as a collecting frame; the left moving die 4 and the right moving die 4 continue to move rightwards, so that the left moving die 4 pushes the left fixed die 3 to move rightwards and compresses the left first elastic piece 8, at the moment, the abutting piece 21 is separated from the bulge 52, the abutting piece 21 at the right end moves to the left side of the bulge 52, the abutting piece 21 is not abutted against the abutting plate 511, the second elastic piece 514 pushes the baffle plate 512 to be far away from the gate of the pipeline 32, after the left moving die 4 pushes the left fixed die 3 to the rightmost side, the left blanking hole 34 corresponds to the feeding hole of the fixed base 2, at the moment, feeding can be performed in the left die cavity, in this state, the right air channel 72 can be opposite to the air pipe 71, so that the air pipe 71 can blow through the inside of the pipeline 32 at the right side of the air pipe 72, gate waste inside the pipeline 32 is removed through air pressure, thereby the device has an automatic waste discharging effect, and through the arrangement of the one-way valve assembly 9, the melted material can be prevented from entering the inside of the air channel 72, and the left die casting can be demolded by repeating the steps.
Claims (9)
1. The molding device for die casting production comprises a workbench, a fixed seat, a fixed mold, a pouring gate component, a pushing component and a waste discharge component, wherein the fixed seat is arranged on the workbench; the movable die can slide on the fixed seat and can be matched with the fixed die for use, the gate component is arranged on the fixed die and is positioned at a gate injection position of the die casting cavity close to the fixed die, the gate component has a demolding state and a waste discharge state, the gate component can separate a die casting finished product from gate waste in the demolding state and can discharge the gate waste from the gate in the waste discharge state, the pushing component slides in the fixed die, and the pushing component is used in the demolding state of the gate component and can push the die casting finished product to separate the die casting finished product from the gate waste;
The fixed die comprises two symmetrically arranged bottom dies, a pipeline is connected between the two bottom dies, a stop block is arranged in the middle of the pipeline, blanking holes positioned on two sides of the stop block are formed in the pipeline, the movable die can push the fixed die to slide in the fixed base during die assembly, and when the fixed die slides in the fixed base, one blanking hole can be communicated with a feeding hole of the fixed base.
2. The molding device for die casting production according to claim 1, wherein the gate component comprises two shielding pieces, protrusions are arranged on the shielding pieces, a supporting block is arranged on the fixing base, the fixed die can slide in the fixing base, the gate component is in a demolding state when the supporting block abuts against the protrusions, and the gate component is in a waste discharge state when the supporting block is away from the protrusions.
3. The molding device for die casting production of claim 2, wherein the fixed seat is provided with a first elastic piece, and the first elastic piece can enable the protrusion to abut against the abutting block by pushing the fixed mold.
4. The molding device for die casting production according to claim 2, wherein the pushing component comprises a sliding column and a jacking column connected with the sliding column, the sliding column penetrates through two ends of the fixed die, the movable die can push the sliding column to slide in the fixed die during die assembly, two jacking columns are arranged in two bottom dies, and the jacking column can push the die casting to be separated from the die casting cavity.
5. The molding device for die casting production according to claim 2, wherein the waste discharging assembly comprises two air pipes arranged on the fixed seat, two air passages are arranged in the stop block, the two air passages can be respectively communicated with two sides of the stop block, and when the movable die is contacted with the fixed die and can be poured into the die cavity, the air pipes are communicated with the other air passage.
6. The molding device for die casting production of claim 5, wherein the end of the air passage away from the air pipe is provided with a one-way valve assembly, so that air in the air pipe can only enter the pipeline.
7. The molding device for die casting production according to claim 2, wherein the shielding piece comprises a retaining plate and a baffle plate, the protrusion is arranged on the retaining plate, the plane of the retaining plate on one side of the protrusion is higher than that of the retaining plate on the other side, when casting into the die casting cavity, the retaining block can be abutted against the plane on the higher side of the retaining plate, the baffle plate can extend into a gate of the die casting cavity, the two baffle plates are arranged in a staggered manner, a shrinkage mouth is formed at one end, close to each other, of the two baffle plates, and a second elastic piece for pushing the baffle plate to be far away from the gate of the die casting cavity is further arranged in the fixed die.
8. The molding device for die casting production of claim 7, wherein the abutment block is connected with an adjusting bolt, and the adjusting bolt can adjust the depth of abutment of the abutment block and the abutment plate.
9. The molding apparatus for die casting according to any one of claims 1 to 8, wherein the table is provided with a driving device for driving the movable die to move.
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| CN207431214U (en) * | 2017-07-14 | 2018-06-01 | 腾普(常州)精机有限公司 | Three-plate type die-casting mould runner automatic dropping mechanism |
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| CN1243622C (en) * | 2004-06-06 | 2006-03-01 | 象山昌荣机械模具厂 | Central running-gate mould cavity of extruding mould |
| CN107009581A (en) * | 2017-05-24 | 2017-08-04 | 苏州工业职业技术学院 | It is a kind of to realize the injection mold that spot pouring mouth waste material safely, conveniently comes off |
| CN214392289U (en) * | 2020-09-21 | 2021-10-15 | 珠海嵘泰有色金属铸造有限公司 | Automatic material device and die casting die of cutting off of material handle |
| CN113634733A (en) * | 2021-08-17 | 2021-11-12 | 长春市捷诚机械制造有限公司 | Automatic cut runner separation die-casting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207431214U (en) * | 2017-07-14 | 2018-06-01 | 腾普(常州)精机有限公司 | Three-plate type die-casting mould runner automatic dropping mechanism |
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