CN116967423B - Casting mold for refrigerator door processing and molding and use method - Google Patents
Casting mold for refrigerator door processing and molding and use method Download PDFInfo
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- CN116967423B CN116967423B CN202310974703.3A CN202310974703A CN116967423B CN 116967423 B CN116967423 B CN 116967423B CN 202310974703 A CN202310974703 A CN 202310974703A CN 116967423 B CN116967423 B CN 116967423B
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- 238000005266 casting Methods 0.000 title claims abstract description 95
- 238000000465 moulding Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 73
- 238000007872 degassing Methods 0.000 claims abstract description 21
- 238000001125 extrusion Methods 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 238000007667 floating Methods 0.000 claims description 41
- 238000005086 pumping Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000000284 extract Substances 0.000 claims description 5
- 238000010009 beating Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims 2
- 210000001503 joint Anatomy 0.000 claims 1
- 206010044048 Tooth missing Diseases 0.000 description 9
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
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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
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/08—Shaking, vibrating, or turning of moulds
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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
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/09—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Refrigerator Housings (AREA)
Abstract
The invention discloses a casting mold for refrigerator door processing and molding and a use method thereof, comprising a lower mold, a guide rod arranged on the periphery of the upper surface of the lower mold, an upper mold sleeved on the guide rod and matched with the lower mold, a refrigerator door molding cavity arranged on the upper surface of the lower mold, a positioning opening arranged at the bottom of the upper mold and matched with the lower mold in length, a movable cavity arranged in the upper mold and communicated with the positioning opening, a conversion plate assembly movably arranged in the movable cavity, an air-entraining channel and a vacuumizing type feeding assembly respectively arranged on two sides of the top of the upper mold, and an extrusion degassing assembly arranged on the lower mold. According to the invention, the vacuumizing type feeding assembly is used for vacuumizing the refrigerator door forming cavity and injecting casting liquid into the refrigerator door forming cavity, so that bubbles are prevented from being generated after the casting liquid enters the refrigerator door forming cavity, and the waterproof breathable film layer in the conversion plate assembly is matched with the extrusion degassing assembly, so that the bubbles in the casting liquid in the refrigerator door forming cavity are further removed.
Description
Technical Field
The invention relates to the technical field of molds, in particular to a casting mold for refrigerator door processing and molding and a using method thereof.
Background
The casting mould is an important component in the casting tool, and the shape of the casting is determined by the shape of the mould. At present, a casting mold is used for the production and processing of a refrigerator door, and a required refrigerator can be obtained after cooling and demolding by injecting molten flowing casting liquid into a molding cavity of the mold during processing.
The existing casting mould for refrigerator door processing and forming can finish the forming and casting of the refrigerator door, but after casting liquid is poured into a forming cavity of the casting mould, a plurality of bubbles often remain in the casting liquid, if the bubbles are not discharged in time, after the liquid is solidified and formed, a plurality of pits are formed on the surface of the formed refrigerator door, and the quality of the refrigerator door is seriously affected. Therefore, we propose a casting mold for refrigerator door processing and molding and a using method thereof.
Disclosure of Invention
The invention aims to provide a casting mold for refrigerator door processing and molding and a using method thereof, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the casting mold comprises a lower mold, a guide rod arranged on the periphery of the upper surface of the lower mold, an upper mold sleeved on the guide rod and matched with the lower mold, a refrigerator door molding cavity arranged on the upper surface of the lower mold, a positioning opening arranged at the bottom of the upper mold and matched with the length of the lower mold, a movable cavity arranged in the upper mold and communicated with the positioning opening, a conversion plate assembly movably arranged in the movable cavity, an air-entraining channel and a vacuumizing type feeding assembly respectively arranged on two sides of the top of the upper mold and communicated with the movable cavity, and an extrusion degassing assembly arranged on the lower mold; wherein,
the conversion plate assembly comprises a movable plate movably arranged in the movable cavity, a waterproof breathable film layer matched with the air entraining channel is embedded on one side of the movable plate, a feed inlet matched with the vacuumizing feed assembly is formed in the other side of the movable plate in a penetrating mode up and down, the movable plate is driven by telescopic equipment arranged on one side of the upper die to horizontally move in the movable cavity, and when the feed inlet corresponds to the output end of the vacuumizing feed assembly, the waterproof breathable film layer is staggered with the air entraining channel;
the vacuum-pumping type feeding assembly enables casting liquid to enter the refrigerator door forming cavity when the feeding port corresponds to the output end of the vacuum-pumping type feeding assembly, and extracts air in the refrigerator door forming cavity when the casting liquid enters the refrigerator door forming cavity, and the extrusion degassing assembly extrudes the casting liquid in the refrigerator door forming cavity when the waterproof breathable film layer corresponds to the air-entraining channel, so that gas in the casting liquid enters the air-entraining channel through the waterproof breathable film layer.
The vacuum-pumping type feeding assembly comprises a feeding pipe, a circular shell, a driven impeller, a induced air shell, an induced air fan blade and an induced air floating plate assembly, wherein the feeding pipe is inserted into the top of an upper die and is communicated with a movable cavity, the circular shell is arranged at the top of the feeding pipe and is communicated with the feeding pipe, the driven impeller is arranged at the center of an inner cavity of the circular shell through a shaft body, the induced air shell is arranged at one side of the circular shell and is coaxial with the circular shell, the induced air fan blade is arranged in the induced air shell and is coaxially connected with the driven impeller, the induced air floating plate assembly is communicated with the induced air shell through an exhaust pipe, a feed port is arranged at one side of the circular shell, the driven impeller is driven to rotate by casting liquid entering from the feed port, an exhaust pipe is arranged at one side of the induced air shell, the induced air floating plate assembly is arranged in a groove formed in the upper die, one end of the induced air floating plate assembly extends into a forming cavity of a refrigerator door, and the induced air floating plate assembly extracts air in the forming cavity and lifts along with the casting liquid level in the forming cavity of the refrigerator door during feeding.
The air-entraining floating plate assembly is further improved in that the air-entraining floating plate assembly comprises a T-shaped rod which is arranged in a groove in a lifting manner through a bracket, the bottom end of the T-shaped rod penetrates through the bottom of the groove, penetrates through a movable cavity and a positioning opening and extends to a refrigerator door forming cavity to be connected with a hollow seat, the bottom of the hollow seat is in matched sliding connection with a floating plate with a sliding groove formed in the upper surface through a sliding block, one end of the sliding groove is arranged in the sliding groove and is connected with the inner wall of the sliding groove, the other end of the sliding groove is connected with a first spring of the sliding block, a plurality of groups of through openings are formed in the outer wall of the hollow seat, the hollow seat is communicated with one end, far away from an air-entraining shell, of an exhaust pipe, and permanent magnets are embedded in the two sides of the top of the floating plate;
the conversion plate assembly further comprises a T-shaped opening which is vertically arranged on the movable plate in a penetrating mode and is positioned between the waterproof breathable film layer and the feeding hole, the lower end of an inner cavity of the T-shaped opening is matched with the floating plate, the height of the upper end of the inner cavity of the T-shaped opening is matched with the height of the hollow seat, electromagnetic blocks for electrifying and adsorbing the permanent magnetic blocks are embedded into the inner walls of the tops of two sides of the lower end of the inner cavity of the T-shaped opening, a touch switch I for contacting with the top of the hollow seat is arranged on the inner wall of the top of the movable cavity and positioned in the T-shaped opening, and the touch switch I is electrically connected with the electromagnetic blocks;
when the feeding port corresponds to the output end of the vacuumizing type feeding assembly, the T-shaped port is opposite to the floating plate, the floating plate makes the hollow seat contact with the touch switch along with the liquid level of casting liquid upwards, and the touch switch controls the electromagnetic block to electrify to adsorb the permanent magnet block to fix the floating plate in the inner cavity of the T-shaped port.
A further improvement is that the vacuum-pumping type feeding assembly further comprises a bubble crushing part;
the bubble crushing part further comprises an assembly cavity, a connecting plate and a plurality of groups of movable toothed bars, wherein the assembly cavity is arranged in the upper die and is adjacent to one side of the feeding pipe, one end of the connecting plate is movably arranged in the assembly cavity, the other end of the connecting plate is connected with the connecting plate, the other end of the connecting plate passes through a movable opening formed in the upper die and extends to the upper side of the upper die, the movable toothed bars are movably arranged in a plurality of groups of movable toothed bars in the feeding pipe horizontally, one end of each movable toothed bar penetrates through the feeding pipe and is connected with the connecting plate, a fixed toothed bar parallel to the movable toothed bar is arranged in an inner cavity of the feeding pipe between two adjacent groups of movable toothed bars, a spring II is arranged between the L-shaped bars and the inner wall of the movable opening, a circular rotating block is arranged on the surface of the upper die on the inner side of the L-shaped bar through a support and a shaft in a rotating way, arc-shaped bulges for driving a plurality of groups of L-shaped bars to outwards are integrally arranged on the circumferential outer wall of the rotating block in an annular array way, and the shaft of the rotating block is in a circle center of the rotating block is connected with a driven impeller through a sprocket driving group;
teeth on the outer wall of the movable toothed bar and teeth on the outer wall of the fixed toothed bar are staggered.
The extrusion degassing assembly comprises a bottom frame arranged at the bottom of a lower die, an eccentric rotary table arranged in the bottom frame, a movable column which is in sliding butt with the circumferential outer wall of the eccentric rotary table and is vertically inserted into the bottom of the lower die, and a bottom plate which is arranged at one end of the movable column away from the eccentric rotary table and is attached to the bottom of an inner cavity of a forming cavity of a refrigerator door, wherein the eccentric rotary table drives eccentric rotation by rotary equipment arranged in the bottom frame, the length of the bottom plate is equal to the length of the inner cavity of the forming cavity of the refrigerator door, one side of the bottom frame is provided with an air cylinder, a piston part is arranged in the air cylinder, one end of the piston part extends to the outer side of the air cylinder, a spring III for driving one end of the piston part to be in sliding butt with the circumferential outer wall of the eccentric rotary table is sleeved on the outer wall of the piston part, one end of the air cylinder away from the eccentric rotary table is provided with an air inlet and an air outlet, and the air inlet of the air cylinder is detachably communicated with an air-entraining channel through an exhaust pipe II.
The movable cavity is characterized in that a second touch switch used for contacting one side of the movable plate is arranged on the inner wall of one side of the movable cavity, and the second touch switch is electrically connected with rotating equipment;
when the moving plate is driven by the telescopic equipment to be contacted with the touch switch II, the feeding hole is staggered with the feeding pipe, the waterproof breathable film layer corresponds to the air entraining channel, and the touch switch II controls the rotating equipment to work.
A further improvement is that the device also comprises a knocking component driven by the extrusion degassing component;
the utility model provides a novel structure of a movable column, including the fixed column, the fixed column is located to the fixed column, wherein, strike the subassembly including two sets of tooth-missing gear that locate movable column both sides and with locate the tooth section meshing of movable column outer wall, tooth-missing gear is located on the link through pivot and torsional spring rotation, the link is connected with the bottom frame, one side of tooth-missing gear is coaxial to be equipped with the wind-up roll, two sets of the outer wall of wind-up roll has all been convoluteed the stay cord, two sets of the stay cord be connected with two sets of pole that strike respectively, two sets of strike the pole and be located the both sides of bed die respectively, and strike the pole level activity and insert and locate on a mounting bracket, the mounting bracket is located on the bottom frame, the one end that the stay cord was kept away from to strike the pole is equipped with and is used for beating the knocking down die and strikes the ball, strike pole outer wall cover is equipped with one end and connects and strikes the pole inner, and the other end is connected the spring of mounting bracket.
The application method of the casting mold for the refrigerator door processing and molding specifically comprises the following steps:
s1: when the casting device is used, casting liquid enters the refrigerator door forming cavity through the vacuumizing feeding assembly and the feeding port, and the vacuumizing feeding assembly enables the casting liquid to enter the refrigerator door forming cavity and simultaneously extracts air in the refrigerator door forming cavity;
s2: after casting liquid is injected into the molding cavity of the refrigerator door, the moving plate is driven to move through telescopic equipment, so that the waterproof breathable film layer corresponds to the input end of the air entraining assembly;
s3: the casting liquid in the refrigerator door forming cavity is extruded through the extrusion degassing component, so that gas in the casting liquid passes through the waterproof breathable film layer and the air entraining channel to be discharged;
s4: and then cooling the casting mold, separating the upper mold from the lower mold, and taking out the refrigerator door formed in the refrigerator door forming cavity).
Compared with the prior art, the invention has the beneficial effects that:
the invention is provided with the vacuumizing type feeding component matched with the conversion plate component, when the feeding hole in the conversion plate component corresponds to the vacuumizing type feeding component, the vacuumizing type feeding component vacuumizes the refrigerator door forming cavity and injects casting liquid into the refrigerator door forming cavity, so that bubbles are prevented from being generated after the casting liquid enters the refrigerator door forming cavity, in addition, in the feeding process, the bubbles in the casting liquid entering the refrigerator door forming cavity are primarily removed through the bubble smashing part, then a waterproof breathable film layer in the conversion plate component is matched with the extrusion degassing component, the bubbles in the casting liquid in the refrigerator door forming cavity are further removed, meanwhile, the knocking component is driven to knock the lower die when the extrusion degassing component works, so that the lower die vibrates, on one hand, the quality of the extrusion degassing component for extruding the casting liquid is improved, on the other hand, the casting liquid is uniformly distributed in the refrigerator door forming cavity, and the molding quality of the casting liquid is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the upper mold structure of the present invention;
FIG. 3 is a schematic diagram of a conversion plate assembly according to the present invention;
FIG. 4 is a cross-sectional view of the structure of FIG. 3 in accordance with the present invention;
FIG. 5 is a schematic view of the vacuum pumping type feeding assembly of the present invention;
FIG. 6 is an enlarged view of the A structure of FIG. 1 in accordance with the present invention;
FIG. 7 is an enlarged view of the B structure of FIG. 2 in accordance with the present invention;
FIG. 8 is a schematic view of an extrusion degassing assembly according to the present invention.
In the figure: 1. a lower die; 2. a guide rod; 3. an upper die; 4. a refrigerator door molding cavity; 5. a positioning port; 6. a moving plate; 7. a telescoping device; 8. a waterproof breathable film layer; 9. a feed inlet; 10. a T-shaped port; 11. a feed pipe; 12. a circular shell; 13. a driven impeller; 14. an induced draft shell; 15. an exhaust pipe I; 16. a T-bar; 17. a groove; 18. a hollow seat; 19. a floating plate; 20. a first spring; 21. a touch switch I; 22. an electromagnetic block; 23. a rotating block; 24. arc-shaped bulges; 25. a sprocket drive set; 26. an assembly chamber; 27. a second spring; 28. an L-shaped rod; 29. a movable toothed bar; 30. fixing a toothed bar; 31. a second touch switch; 32. a bottom frame; 33. a bottom plate; 34. a movable column; 35. an eccentric turntable; 36. an air cylinder; 37. a piston member; 38. a third spring; 39. an air outlet; 40. an exhaust pipe II; 41. a bleed air passage; 42. a tooth-missing gear; 43. a wind-up roll; 44. a pull rope; 45. knocking the rod; 46. striking a ball; 47. and a spring IV.
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.
Example 1
Referring to fig. 1-4, a casting mold for forming a refrigerator door comprises a lower mold 1, a guide rod 2 arranged around the upper surface of the lower mold 1, an upper mold 3 sleeved on the guide rod 2 and matched with the lower mold 1, and a refrigerator door forming cavity 4 arranged on the upper surface of the lower mold 1, wherein the upper mold 3 moves up and down relative to the lower mold 1 along the guide rod 2, high-temperature casting liquid is injected into the refrigerator door forming cavity 4, and a required refrigerator door can be obtained after cooling and demolding;
the device also comprises a positioning port 5 which is arranged at the bottom of the upper die 3 and is matched with the lower die 1 in length, a movable cavity which is arranged in the upper die 3 and is communicated with the positioning port 5, a conversion plate component which is movably arranged in the movable cavity, air-entraining channels 41 (the vertical section of the air-entraining channels 41 is T-shaped) which are respectively arranged at the two sides of the top of the upper die 3 and are communicated with the movable cavity, a vacuumizing feeding component and an extrusion degassing component which are arranged on the lower die 1; wherein,
the conversion plate assembly comprises a movable plate 6 movably arranged in the movable cavity, and as shown in figure 1, the length of the movable plate 6 is larger than that of the refrigerator door forming cavity 4 and smaller than that of the movable cavity;
the waterproof and breathable film layer 8 matched with the air-entraining channel 41 is embedded on one side of the movable plate 6, the feeding hole 9 matched with the vacuumizing feeding assembly is vertically penetrated on the other side, the waterproof and breathable film layer 8 is made of high-temperature-resistant material which can not be exuded and breathable, and belongs to the prior art, the movable plate 6 is driven to horizontally move in the movable cavity by the telescopic device 7 arranged on one side of the upper die 3, and when the feeding hole 9 corresponds to the output end of the vacuumizing feeding assembly, the input ends of the waterproof and breathable film layer 8 and the air-entraining assembly are staggered, and as can be seen from the attached figure 2, the waterproof and breathable film layer 8 is positioned on the outer side of the refrigerator door forming cavity 4;
the vacuum-pumping type feeding component enables casting liquid to enter the refrigerator door forming cavity 4 when the feeding port 9 corresponds to the output end, and extracts air in the refrigerator door forming cavity 4 when the casting liquid enters, and the extrusion degassing component extrudes the casting liquid in the refrigerator door forming cavity 4 when the waterproof breathable film layer 8 corresponds to the air entraining channel 41, so that gas in the casting liquid enters the air entraining channel 41 through the waterproof breathable film layer 8.
Referring to fig. 5-7, as a preferred embodiment, the vacuum-pumping feeding assembly includes a feeding pipe 11 inserted at the top of the upper mold 3 and communicated with the movable cavity, a circular shell 12 disposed at the top of the feeding pipe 11 and communicated with the feeding pipe 11, a driven impeller 13 disposed at the center of the inner cavity of the circular shell 12 through a shaft body, a wind guiding shell 14 disposed at one side of the circular shell 12 and coaxial with the circular shell 12, a wind guiding blade (not shown in the drawings) disposed in the wind guiding shell 14 and coaxially connected with the driven impeller 13, and a wind guiding floating plate assembly communicated with the wind guiding shell 14 through a wind guiding pipe 15 (hose), wherein one side of the circular shell 12 is provided with a material opening, the driven impeller 13 is driven to rotate by casting liquid entering from the material opening, one side of the wind guiding shell 14 is provided with an exhaust pipe, one side of the wind guiding pipe 15 and the exhaust pipe are both provided with one-way valves, one end of the wind guiding floating plate assembly extends into a cavity 4 of a refrigerator door, and the wind guiding floating plate assembly draws air in the refrigerator door 4 and lifts the cavity 4 with the liquid in the cavity 4 of the refrigerator door when feeding.
As a preferred embodiment, the air entraining floating plate assembly of this embodiment includes a T-shaped rod 16 which is arranged in a groove 17 in a liftable manner through a bracket, the bottom end of the T-shaped rod 16 penetrates through the bottom of the groove 17, passes through the movable cavity and the positioning opening 5, and extends to the end, far away from the air intake shell 14, of the refrigerator door forming cavity 4, the connection part between the T-shaped rod 16 and the bottom of the groove 17 can be sealed by adopting a sealing ring, the bottom of the hollow seat 18 is in sliding connection with a floating plate 19 with a sliding groove on the upper surface through a sliding block, the sliding block and the sliding groove are specifically a T-shaped sliding block and a T-shaped sliding groove respectively, one end of the sliding groove is connected with the inner wall of the sliding groove, and the other end of the sliding groove is connected with a first spring 20 of the sliding block, through the arrangement, so that the floating plate 19 moves relative to the hollow seat 18 after moving upwards to a required position, a plurality of groups of through openings are formed in the outer wall of the hollow seat 18, the hollow seat 18 is communicated with one end, far away from the air intake shell 14, and the hollow seat 15 is specifically communicated with the hollow seat 18 after penetrating the T-shaped rod 16; permanent magnets are embedded in the two sides of the top of the floating plate 19, and the floating plate 19 moves up and down along with the liquid level of casting liquid entering the refrigerator door forming cavity 4, so that a certain interval is always reserved between the hollow seat 18 and the casting liquid of the refrigerator door forming cavity 4, and the casting liquid of the refrigerator door forming cavity 4 is effectively prevented from being extracted;
the conversion plate assembly further comprises a T-shaped opening 10 which is vertically arranged on the movable plate 6 in a penetrating manner and is positioned between the waterproof and breathable film layer 8 and the feeding opening 9, the lower end of an inner cavity of the T-shaped opening 10 is matched with the floating plate 19 (namely, the length, the width and the height are equal), the upper end of the inner cavity is matched with the height of the hollow seat 18, electromagnetic blocks 22 for electrifying and adsorbing permanent magnetic blocks are embedded in the inner walls of the tops of the two sides of the lower end of the inner cavity of the T-shaped opening 10, a touch switch I21 for contacting with the top of the hollow seat 18 is arranged on the inner wall of the top of the movable cavity and positioned in the T-shaped opening 10, and the touch switch I21 is electrically connected with the electromagnetic blocks 22; as an advantage, the first touch switch 21 of the embodiment is further electrically connected to an external warning lamp, and when the hollow seat 18 contacts the first touch switch 21, it is indicated that the casting liquid in the refrigerator door molding cavity 4 has reached the required amount, and then the first touch switch 21 controls the external warning lamp to be turned on, so as to remind a user to stop adding the casting liquid;
when the feeding port 9 corresponds to the output end of the vacuumizing feeding assembly (namely the lower end of the feeding pipe 11), the T-shaped port 10 corresponds to the floating plate 19, the floating plate 19 makes the hollow seat 18 contact with the touch switch I21 upwards along with the liquid level of casting liquid, and the touch switch I21 controls the electromagnetic block 22 to electrify to adsorb the permanent magnet block so as to fix the floating plate 19 in the inner cavity of the T-shaped port 10.
Preferably, the vacuum-pumping feeding assembly of the present embodiment further includes a bubble crushing portion;
wherein the bubble crushing part further comprises an assembly cavity 26 (the assembly cavity 26 is positioned above the movable cavity) which is arranged in the upper die 3 and is adjacent to one side of the feeding pipe 11, a connecting plate which is movably arranged in the assembly cavity 26, an L-shaped rod 28 with one end connected with the connecting plate and the other end penetrating through a movable opening formed in the upper die 3 and extending to the upper side of the upper die 3, and a plurality of groups of movable toothed bars 29 which are movably and horizontally arranged in the feeding pipe 11, one end of each movable toothed bar 29 penetrates through the feeding pipe 11 and is connected with the connecting plate, a fixed toothed bar 30 which is parallel to the movable toothed bar 29 is arranged in the inner cavity of the feeding pipe 11 between two adjacent groups of movable toothed bars 29, a spring two 27 is arranged between the L-shaped rod 28 and the inner wall of the movable opening, a circular rotating block 23 is arranged on the surface of the upper die 3 inside the L-shaped rod 28 through support and shaft rotation, the circumference outer wall of the rotary block 23 is integrally provided with a plurality of groups of arc-shaped bulges 24 which drive the L-shaped rods 28 to move outwards in an annular array, the shaft of the center of the rotary block 23 is in transmission connection with the shaft body of the driven impeller 13 through a sprocket transmission group 25, the sprocket transmission group 25 is positioned at the outer side of the circular shell 12, the sprocket transmission group 25 comprises a sprocket and a chain, when the driven impeller rotates, the shaft body not only drives the induced air fan blades, but also drives the rotary block 23 to rotate through the sprocket transmission group 25, the rotary block 23 rotates to intermittently push the L-shaped rods 28 to move and squeeze the springs II 27 through the arc-shaped bulges 24, so that the L-shaped rods 28 drive a connecting plate, and the connecting plate drives the movable toothed rods 29 to reciprocate horizontally relative to the fixed toothed rods 30 to crush bubbles in casting liquid passing through the feed pipe 11;
the teeth on the outer wall of the movable toothed bar 29 and the teeth on the outer wall of the fixed toothed bar 30 are staggered, and as can be seen from fig. 6, a single tooth on the outer wall of the movable toothed bar 29 is located between two adjacent single teeth on the outer wall of the fixed toothed bar 30, and when the movable toothed bar 29 moves reciprocally, a single tooth on the outer wall of the movable toothed bar moves between two adjacent single teeth on the outer wall of the fixed toothed bar 30.
Referring to fig. 8, as a preferred embodiment, the extrusion degassing assembly of the present embodiment includes a bottom frame 32 disposed at the bottom of the lower mold 1, an eccentric turntable 35 disposed in the bottom frame 32, a movable column 34 slidably abutting against the circumferential outer wall of the eccentric turntable 35 and vertically inserted into the bottom of the lower mold 1, and a bottom plate 33 disposed at one end of the movable column 34 away from the eccentric turntable 35 and attached to the bottom of the cavity of the refrigerator door forming cavity 4, wherein the eccentric turntable 35 is driven to eccentrically rotate by a rotating device disposed in the bottom frame 32 (the eccentric turntable 35 is eccentrically sleeved at the output end of the rotating device), the rotating device includes, for example, a motor and a speed reducer, the length of the bottom plate 33 is equal to the length of the cavity of the refrigerator door forming cavity 4, the rotating device drives the eccentric turntable 35 to rotate, the eccentric turntable 35 reciprocally moves up and down, and drives the bottom plate 33 to push the casting liquid in the refrigerator door forming cavity 4 up and down to contact with the bottoms of the movable plate 6 and the movable plate 19 when the movable column 34 is up, and the casting liquid is extruded to enable gas in the casting liquid to enter the air-entraining channel 41 through the waterproof and air-permeable membrane layer 8;
one side of the bottom frame 32 is provided with an air cylinder 36, a piston piece 37 is arranged in the air cylinder 36, the piston piece 37 belongs to the prior art, the air cylinder comprises a piston rod, a piston and the like, one end of the piston piece 37 extends to the outer side of the air cylinder 36, a spring III 38 for driving one end of the piston piece 37 to be in sliding butt with the circumferential outer wall of the eccentric rotary disc 35 is sleeved on the outer wall of the piston piece 37, namely one end of the spring III 38 is connected with the outer end of the piston piece 37, the other end of the spring III is connected with the air cylinder 36, one end of the air cylinder 36 far away from the eccentric rotary disc 35 is provided with an air inlet and an air outlet 39, one-way valves are arranged in the air inlet and the air outlet 39, and the air inlet of the air cylinder 36 is detachably communicated with an air-entraining channel 41 through an air extraction pipe II 40. When the eccentric rotary disc 35 rotates, the piston member 37 is driven to move in the air cylinder 36, so that negative pressure is generated in the air cylinder 36, air in the air-entraining channel 41 is extracted into the air cylinder 36 through the air extraction pipe II 40, and air extracted into the air cylinder 36 is extruded by the subsequent piston member 37 and is discharged from the air outlet 39.
As an preference, a second touch switch 31 for contacting with one side of the moving plate 6 is arranged on the inner wall of one side of the movable cavity, and the second touch switch 31 is electrically connected with the rotating device;
when the moving plate 6 is driven by the telescopic device 7 to be contacted with the touch switch II 31, the feed inlet 9 is staggered with the feed pipe 11, the waterproof and breathable film layer 8 corresponds to the air entraining channel 41, and the touch switch II 31 controls the rotating device to work.
Preferably, the embodiment further comprises a knocking component driven by the extrusion degassing component;
the knocking assembly includes two groups of tooth-missing gears 42 which are respectively arranged at two sides of the movable column 34 and meshed with tooth sections (i.e. a vertical row of teeth) arranged on the outer wall of the movable column 34, the tooth-missing gears 42 are rotationally arranged on the connecting frame through a rotating shaft and a torsion spring, the connecting frame is connected with the bottom frame 32, one side of the tooth-missing gears 42 is coaxially provided with a winding roller 43, the outer walls of the two groups of winding rollers 43 are respectively wound with a pull rope 44, the two groups of pull ropes 44 are respectively connected with two groups of knocking rods 45, the two groups of knocking rods 45 are respectively positioned at two sides of the lower die 1, the knocking rods 45 are horizontally movably inserted on a mounting frame, the mounting frame is arranged on the bottom frame 32, one end, far away from the pull ropes 44, of the knocking rods 45 is provided with a knocking ball 46 used for knocking the lower die 1, one end of the outer wall of the knocking rods 45 is sleeved with the inner end of the knocking rods 45, the other end of the knocking rods is connected with a spring four 47 of the mounting frame, and a guide wheel set for guiding the pull ropes 44 is required to be described, and the bottom frame 32 is also provided with a guide wheel set for guiding the pull ropes 44, which is not described in detail herein. When the movable column 34 moves upwards, the movable column 34 drives the missing tooth gear 42 through the tooth segment, the missing tooth gear 42 drives the wind-up roller 43 to wind the pull rope 44, the pull rope 44 pulls the knocking rod 45 to enable the knocking ball 46 to be far away from the spring four 47, when a blank segment (namely a toothless area on the missing tooth gear 42) on the missing tooth gear 42 corresponds to the tooth segment of the movable column 34, the missing tooth gear 42 resets under the action of the torsion spring, the wind-up roller 43 unwinds the pull rope 44, the spring four 47 drives the knocking rod 45 to drive the knocking ball 46 to reset and knock the lower die 1, and the intermittent knocking of the lower die 1 through the knocking component improves the quality of the extrusion degassing component for extruding and removing bubbles of casting liquid on one hand, and on the other hand, the casting liquid is uniformly distributed in the refrigerator door forming cavity 4, and the casting liquid forming quality is improved.
The application method of the casting mold for the refrigerator door processing and molding specifically comprises the following steps:
s1: when the casting liquid is used, casting liquid enters the circular shell 12 from the material opening, then enters the feeding pipe 11 from the circular shell 12, then enters the refrigerator door forming cavity 4 from the feeding hole 9, the casting liquid drives the driven impeller 13 to rotate, the driven impeller 13 further drives the induced air blades to rotate, air in the refrigerator door forming cavity 4 enters the hollow seat 18 from the through hole of the hollow seat 18, then enters the induced air shell 14 from the exhaust pipe I15 and is discharged from the exhaust pipe of the induced air shell 14, the rotary block 23 is driven by the sprocket transmission group 25 when the driven impeller 13 rotates, the rotary block 23 rotates to intermittently push the L-shaped rod 28 through the arc-shaped protrusions 24, so that the L-shaped rod 28 drives the connecting plate, the connecting plate drives the movable toothed rod 29 to reciprocate relative to the fixed toothed rod 30, the casting liquid passing through the feeding pipe 11 is crushed, the floating plate 19 drives the T-shaped rod 16 upwards along with the level of the casting liquid entering the refrigerator door forming cavity 4 until the hollow seat 18 contacts the touch switch I21, the touch switch I21 controls the electromagnetic block 22 to adsorb permanent magnets, and the casting liquid is stopped at the moment;
s2: after casting liquid is injected into the refrigerator door forming cavity 4, the telescopic device 7 drives the moving plate 6 to contact with the second touch switch 31, the feeding hole 9 and the feeding pipe 11 are staggered, the waterproof and breathable film layer 8 corresponds to the air entraining channel 41, and the second touch switch 31 controls the rotating device to work;
s3: the rotating equipment drives the eccentric rotary table 35 to rotate, the eccentric rotary table 35 reciprocally pushes the movable column 34 to reciprocate up and down, when the movable column 34 moves up, the bottom plate 33 is driven to push casting liquid in the refrigerator door forming cavity 4 upwards to contact with the bottoms of the movable plate 6 and the floating plate 19 to squeeze the casting liquid, so that air in the casting liquid passes through the waterproof breathable film layer 8 and the air-entraining channel 41, when the eccentric rotary table 35 rotates, the piston piece 37 is driven to move in the air cylinder 36 at the same time, so that negative pressure is generated in the air cylinder 36, air in the air-entraining channel 41 is pumped out through the air-extracting pipe two 40 and is discharged from the air outlet 39 when the piston piece 37 is subsequently reset and squeezed, and in the process of moving the movable column 34 up and down, the movable column 34 drives the tooth-missing gear 42 through tooth sections of the outer wall of the movable column 34, so that the tooth-missing gear 42 winds up-rolling roller 43 reciprocally winds the pull rope 44 and unwinds the pull rope 44, and the pull rope 44 drives the knocking ball 46 to intermittently knock the lower die 1 through the knocking rod 45, so that vibration occurs in the lower die 1;
s4: when the eccentric turntable 35 is at the initial position, the rotating equipment is closed, then the casting mould is cooled, the upper mould 3 and the lower mould 1 are separated, and the refrigerator door formed in the refrigerator door forming cavity 4 is taken out.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a casting mould for refrigerator door machine-shaping, includes bed die (1), locates guide arm (2) around bed die (1) upper surface, cover locate guide arm (2) on and with bed die (1) complex last mould (3) and set up in refrigerator door shaping die cavity (4) of bed die (1) upper surface, its characterized in that: the device also comprises a positioning opening (5) which is arranged at the bottom of the upper die (3) and is matched with the length of the lower die (1), a movable cavity which is arranged in the upper die (3) and is communicated with the positioning opening (5), a conversion plate component which is movably arranged in the movable cavity, air-entraining channels (41) which are respectively arranged at the two sides of the top of the upper die (3) and are communicated with the movable cavity, a vacuumizing type feeding component and an extrusion degassing component which is arranged on the lower die (1); wherein,
the conversion plate assembly comprises a movable plate (6) movably arranged in the movable cavity, a waterproof breathable film layer (8) matched with the air-entraining channel (41) is embedded on one side of the movable plate (6), a feed port (9) matched with the vacuumizing feed assembly is formed in the other side of the movable plate in a penetrating mode, the movable plate (6) is driven to horizontally move in the movable cavity by a telescopic device (7) arranged on one side of the upper die (3), and when the feed port (9)) corresponds to the output end of the vacuumizing feed assembly, the waterproof breathable film layer (8) is staggered with the air-entraining channel (41);
the vacuumizing type feeding assembly enables casting liquid to enter the refrigerator door forming cavity (4) when the feeding port (9) corresponds to the output end of the vacuumizing type feeding assembly, and extracts air in the refrigerator door forming cavity (4) when the casting liquid enters, and the extruding degassing assembly extrudes the casting liquid in the refrigerator door forming cavity (4) when the waterproof breathable film layer (8) corresponds to the air entraining channel (41), so that gas in the casting liquid enters the air entraining channel (41) through the waterproof breathable film layer (8);
the vacuum-pumping type feeding assembly comprises a feeding pipe (11) which is inserted at the top of an upper die (3) and is communicated with a movable cavity, a circular shell (12) which is arranged at the top of the feeding pipe (11) and is communicated with the feeding pipe (11), a driven impeller (13) which is arranged at the center of the inner cavity of the circular shell (12) through a shaft body, a draft fan blade which is arranged at one side of the circular shell (12) and is coaxial with the circular shell (12), a draft air floating plate assembly which is arranged in the draft fan blade (14) and is coaxially connected with the driven impeller (13), and a draft air floating plate assembly which is communicated with the draft fan blade (14) through a draft air pipe (15), wherein one side of the circular shell (12) is provided with a material inlet, the driven impeller (13) is driven to rotate by casting liquid entering from the material inlet, one side of the draft air pipe is arranged at one side of the draft air floating plate assembly, the draft air floating plate assembly is arranged in a groove (17) which is arranged on the upper die (3), one end of the draft air floating plate assembly extends into a refrigerator door forming cavity (4), and the draft air floating plate assembly is pulled out of the refrigerator door forming cavity (4) along with the casting liquid in the liquid forming cavity (4).
2. The casting mold according to claim 1, wherein: the air entraining floating plate assembly comprises a T-shaped rod (16) which is arranged in a groove (17) in a lifting manner through a support, the bottom end of the T-shaped rod (16) penetrates through the bottom of the groove (17) and penetrates through a movable cavity and a positioning opening (5) and extends to a hollow seat (18) connected in a refrigerator door forming cavity (4), the bottom of the hollow seat (18) is in matched sliding connection with a floating plate (19) with a sliding groove formed in the upper surface through a sliding block, one end of the hollow seat is connected with the inner wall of the sliding groove, the other end of the hollow seat is connected with a first spring (20) of the sliding block, a plurality of groups of through openings are formed in the outer wall of the hollow seat (18), the hollow seat (18) is communicated with one end, far away from an air exhaust pipe (15), of the air introducing shell (14), and permanent magnets are embedded in two sides of the top of the floating plate (19);
the conversion plate assembly further comprises a T-shaped opening (10) which is vertically arranged on the movable plate (6) in a penetrating mode and is positioned between the waterproof breathable film layer (8) and the feeding opening (9), the lower end of an inner cavity of the T-shaped opening (10) is matched with the floating plate (19), the height of the upper end of the inner cavity is matched with the height of the hollow seat (18), electromagnetic blocks (22) for electrifying and adsorbing permanent magnetic blocks are embedded in the inner walls of the tops of the two sides of the lower end of the inner cavity of the T-shaped opening (10), a touch switch I (21) which is used for being contacted with the tops of the hollow seat (18) is arranged at the inner wall of the top of the movable cavity and positioned in the T-shaped opening (10), and the touch switch I (21) is electrically connected with the electromagnetic blocks (22);
when the feed inlet (9) corresponds to the output end of the vacuumizing type feed assembly, the T-shaped opening (10) and the floating plate (19) correspond positively, the floating plate (19) enables the hollow seat (18) to be in contact with the first touch switch (21) along with the liquid level of casting liquid, and the first touch switch (21) controls the electromagnetic block (22) to electrify and adsorb the permanent magnet block to fix the floating plate (19) in the inner cavity of the T-shaped opening (10).
3. The casting mold according to claim 2, characterized in that: the vacuumizing type feeding assembly further comprises a bubble crushing part;
the bubble crushing part further comprises an assembly cavity (26) which is arranged in the upper die (3) and is adjacent to one side of the feeding pipe (11), a connecting plate which is movably arranged in the assembly cavity (26), one end of the connecting plate is connected with the connecting plate, the other end of the connecting plate penetrates through a movable opening formed in the upper die (3) and extends to an L-shaped rod (28) above the upper die (3), a plurality of groups of movable toothed bars (29) which are movably and horizontally arranged in the feeding pipe (11), one end of each movable toothed bar (29) penetrates through the feeding pipe (11) and is connected with the connecting plate, a fixed toothed bar (30) which is parallel to the movable toothed bar (29) is arranged in the inner cavity of the feeding pipe (11) between two adjacent groups of movable toothed bars (29), a spring II (27) is arranged between the L-shaped rod (28) and the inner wall of the movable opening, a circular rotating block (23) is arranged on the surface of the upper die (3) on the inner side of the L-shaped rod (28) in a rotating way through a supporting seat and a shaft, a plurality of groups of arc-shaped bulges (24) which are integrally arranged in a circular array, the outer walls of the rotating block (23) drive the rotating block (23) in a circular array, and the driven shaft (23) are connected with a driven shaft (25) through a transmission shaft;
teeth on the outer wall of the movable toothed bar (29) and teeth on the outer wall of the fixed toothed bar (30) are staggered.
4. A casting mould according to claim 3, characterized in that: the extrusion degassing component comprises a bottom frame (32) arranged at the bottom of the lower die (1), an eccentric rotary table (35) arranged in the bottom frame (32), a movable column (34) which is in sliding butt joint with the circumference outer wall of the eccentric rotary table (35) and is vertically inserted in the bottom of the lower die (1), and a bottom plate (33) which is arranged at one end of the movable column (34) away from the eccentric rotary table (35) and is attached to the bottom of an inner cavity of the refrigerator door forming cavity (4), wherein the eccentric rotary table (35) is driven to eccentrically rotate by rotating equipment arranged in the bottom frame (32), the length of the bottom plate (33) is equal to the inner cavity length of the refrigerator door forming cavity (4), one side of the bottom frame (32) is provided with an air cylinder (36), a piston piece (37) is arranged in the air cylinder (36), one end of the piston piece (37) extends to the outer side of the air cylinder (36), a spring III (38) which is used for driving one end of the piston piece (37) to be in sliding butt with the circumference outer wall of the eccentric rotary table (35) is sleeved on the outer wall, one end of the piston piece (36) is far away from the eccentric rotary table (35), an air outlet (35) is arranged at one end of the eccentric rotary table (35), and the air outlet (35) is provided with an air outlet (39), and the air inlet (40) is communicated with an air inlet channel (41).
5. The casting mold according to claim 4, wherein: a second touch switch (31) for contacting one side of the movable cavity with the movable plate (6) is arranged on the inner wall of one side of the movable cavity, and the second touch switch (31) is electrically connected with rotating equipment;
when the moving plate (6) is driven by the telescopic equipment (7) to be in contact with the second touch switch (31), the feeding hole (9) is staggered with the feeding pipe (11) and the waterproof breathable film layer (8) corresponds to the air entraining channel (41), and the second touch switch (31) controls the rotating equipment to work.
6. The casting mold according to claim 5, wherein: the knocking component is driven by the extrusion degassing component;
wherein, strike subassembly includes that two sets of tooth gear (42) of tooth section meshing of movable column (34) both sides and locating movable column (34) outer wall are located respectively, tooth gear (42) are located through pivot and torsional spring rotation on the link, the link is connected with bottom frame (32), one side of tooth gear (42) is shared to be equipped with wind-up roll (43), two sets of wind-up roll (43) outer wall has all been convoluteed stay cord (44), two sets of stay cord (44) are connected with two sets of rapping bars (45) respectively, two sets of rapping bars (45) are located the both sides of bed die (1) respectively, and the horizontal activity of rapping bars (45) is inserted on a mounting bracket, the mounting bracket is located on bottom frame (32), the one end that rapping bars (45) were kept away from stay cord (44) is equipped with and is used for beating ball (46) of the bed die (1), rapping bars (45) outer wall cover is equipped with one end connection pole (45) inner, and spring four (47) that the other end connection.
7. A method of using the casting mold for molding a refrigerator door according to claim 1, comprising the steps of:
s1: when the casting device is used, casting liquid enters the refrigerator door forming cavity (4) through the vacuum-pumping type feeding assembly and the feeding port (9), and the vacuum-pumping type feeding assembly pumps out air in the refrigerator door forming cavity (4) while enabling the casting liquid to enter the refrigerator door forming cavity (4);
s2: after casting liquid is injected into the refrigerator door forming cavity (4), the moving plate (6) is driven to move through the telescopic equipment (7), so that the waterproof breathable film layer (8) corresponds to the input end of the air entraining component;
s3: extruding casting liquid in the refrigerator door forming cavity (4) through the extrusion degassing component, so that gas in the casting liquid is discharged through the waterproof breathable film layer (8) and the air entraining channel (41);
s4: then, the casting mold is cooled, the upper mold (3) and the lower mold (1) are separated, and the refrigerator door molded in the refrigerator door molding cavity (4) is taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310974703.3A CN116967423B (en) | 2023-08-04 | 2023-08-04 | Casting mold for refrigerator door processing and molding and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310974703.3A CN116967423B (en) | 2023-08-04 | 2023-08-04 | Casting mold for refrigerator door processing and molding and use method |
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| CN116967423A CN116967423A (en) | 2023-10-31 |
| CN116967423B true CN116967423B (en) | 2024-04-09 |
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|---|---|---|---|---|
| GB1108531A (en) * | 1965-03-26 | 1968-04-03 | Gen Motors Corp | Method of making multiple compartment thermally insulated cabinets |
| WO2007029884A1 (en) * | 2005-09-08 | 2007-03-15 | Matsushita Electric Industrial Co., Ltd. | Refrigerant compressor, cooling system and refrigerator |
| CN207874678U (en) * | 2018-02-05 | 2018-09-18 | 滁州市鑫鼎机械模具制造有限公司 | A kind of refrigerator doors casting mould |
| CN209224389U (en) * | 2018-11-12 | 2019-08-09 | 佛山市顺德区腾野模具有限公司 | A kind of refrigerator open component die mold base structure |
-
2023
- 2023-08-04 CN CN202310974703.3A patent/CN116967423B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1108531A (en) * | 1965-03-26 | 1968-04-03 | Gen Motors Corp | Method of making multiple compartment thermally insulated cabinets |
| WO2007029884A1 (en) * | 2005-09-08 | 2007-03-15 | Matsushita Electric Industrial Co., Ltd. | Refrigerant compressor, cooling system and refrigerator |
| CN207874678U (en) * | 2018-02-05 | 2018-09-18 | 滁州市鑫鼎机械模具制造有限公司 | A kind of refrigerator doors casting mould |
| CN209224389U (en) * | 2018-11-12 | 2019-08-09 | 佛山市顺德区腾野模具有限公司 | A kind of refrigerator open component die mold base structure |
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