A die-casting mold capable of reducing pores in a valve body

Abstract

The present invention discloses a die-casting mold capable of reducing pores in a valve body, relates to the field of die-casting, and comprises a bottom plate, a melting mechanism is fixedly connected to the right side of the upper surface of the bottom plate, a mold mechanism is fixedly connected to the middle of the upper surface of the bottom plate, and a die-casting mechanism is fixedly connected to the outer surface of the melting mechanism. The present invention utilizes the principle of different melting points. When the heater is working, the heating ring becomes hot, and the melting inner shell is indirectly heated to a high temperature, and the solid metal is placed inside the separation shell. Since the melting point of the alloy is relatively low, while the impurities such as mud and stones attached to the surface of the alloy have a relatively high melting point, the liquid crystal will be melted first and flow into the bottom of the melting inner shell, thereby realizing the purification of the alloy and preventing the formation of pores on the surface of the valve body due to the presence of foreign matter during subsequent molding.

Description

Technical Field

[0001] The invention relates to the technical field of die casting, in particular to a die casting die capable of reducing pores in a valve body. Background Art

[0002] Die casting mold is a tool for casting metal parts, a tool that completes the die casting process on a special die casting forging machine. The basic process of die casting is: the molten metal is first cast into the mold cavity at a low speed or high speed. The mold has a movable cavity surface, which is pressurized and forged with the cooling process of the molten metal, which not only eliminates the shrinkage and porosity defects of the blank, but also makes the internal structure of the blank reach the broken grains of the forged state. The comprehensive mechanical properties of the blank are significantly improved;

[0003] However, in actual use, due to the presence of air inside the die-casting mold, it is easy for the liquid crystal to produce pores during condensation. The impure purity of the alloy will also affect the appearance of pores during die-casting. At the same time, after the liquid metal solidifies, the die-casting mold and the formed valve body may be unable to be separated. Summary of the invention

[0004] In view of the shortcomings of the prior art, the technical solution adopted by the present invention to solve the technical problems is as follows: a die-casting mold capable of reducing pores in a valve body according to the present invention comprises a bottom plate, a melting mechanism is fixedly connected to the right side of the upper surface of the bottom plate, a mold mechanism is fixedly connected to the middle of the upper surface of the bottom plate, and a die-casting mechanism is fixedly connected to the outer surface of the melting mechanism;

[0005] The melting mechanism comprises a heating shell, an end of the bottom plate close to the heating shell is fixedly connected with a heater, an upper surface of the heater is fixedly connected with a heating platform, an upper end of the heating platform is fixedly connected with a heating ring, an inner surface of the heating shell is fixedly connected with a support plate 1, an end of the support plate 1 away from the heating shell is fixedly connected with a melting inner shell, an inner surface of the melting inner shell is fixedly connected with a separation shell, and an outer surface of the melting inner shell is fixedly connected with an injection mechanism. When the heater is working, the heating ring becomes hot, and the melting inner shell is indirectly heated to a high temperature, and the solid metal is placed inside the separation shell. Since the melting point of the alloy is relatively low, and the impurities of mud and stone attached to the surface of the alloy have a relatively high melting point, the liquid crystal will be melted first and flow into the bottom of the melting inner shell, thereby achieving the purification of the alloy and preventing the formation of pores on the surface of the valve body due to the presence of foreign matter during subsequent molding;

[0006] The injection mechanism includes an injection tube 1, the lower end of the injection tube 1 is fixedly connected to an injection tube 2, the outer surface of the injection tube 1 is fixedly connected to a hydraulic device, the end of the hydraulic device close to the injection tube 2 is slidably connected to a push rod, and the end of the injection tube 2 away from the hydraulic device is fixedly connected to an injection ring. After the liquid crystal melts, it flows into the injection tube 2, and at the same time, the hydraulic device drives the push rod to push the liquid crystal to the injection ring and finally flows into the model gap.

[0007] Preferably, the mold mechanism includes a mold bracket, a mold notch is provided at one end of the mold bracket close to the injection ring, an electromagnet 1 is fixedly connected to the inner surface of the mold bracket, a cleaning mechanism is fixedly connected to the outer surface of the mold bracket, the extrusion plate is abutted against the mold bracket, so that the telescopic spring 2 is compressed, and during the movement of the molding column, the molding column passes through the extrusion plate and enters the interior of the mold notch, and at the same time the hydraulic device moves the push rod, so that the liquid alloy enters the mold notch.

[0008] Preferably, the cleaning mechanism comprises a support plate 2, the inner surface of the support plate 2 is slidably connected to a movable plate 1, the outer surface of the support plate 2 is fixedly and slidably connected to a pulling column, the rotation of the movable plate 1 is connected to a rotating cylinder, the end of the rotating cylinder away from the movable plate 1 is fixedly connected to a fixed plate 1, the outer surface of the fixed plate 1 is fixedly connected to a telescopic spring 1, the end of the telescopic spring 1 away from the fixed plate 1 is fixedly connected to a cleaning column, the outer surface of the cleaning column is fixedly connected to a cleaning scraper, the end of the cleaning column close to the cleaning scraper is fixedly connected to a pull-back plate, and the end of the cleaning column away from the pull-back plate is provided with a positioning gap. Before formal die-casting, the upper and lower positions of the movable plate 1 can be adjusted so that the movable plate 1 is flush with the mold support, and the molding column is continued to be moved so that the molding column contacts the cleaning column, so that the positioning block fits into the positioning gap, and the rotation of the molding column drives the rotation of the cleaning column, thereby causing the cleaning scraper to scrape off the alloy adhered to the inside of the model notch, and the pull-back plate brings the alloy out when returning, drops it to the bottom and is collected for recycling.

[0009] Preferably, the lower surface of the heating shell is fixedly connected to the upper surface of the base plate, the lower surface of the support bracket is fixedly connected to the middle of the upper surface of the base plate, and the lower end of the second support plate is fixedly connected to the outer surface of the mold bracket.

[0010] Preferably, the die-casting mechanism includes a support plate three, an end of the support plate three away from the heating shell is rotatably connected to a lead screw, an end of the lead screw away from the support plate three is fixedly connected to a support frame, an outer surface of the support frame is fixedly connected to a servo motor one, an outer surface of the lead screw is rotatably connected to a moving block one, an upper surface of the moving block one is fixedly connected to a die-casting plate, an end of the die-casting plate close to the servo motor one is fixedly connected to a rotary air-drying mechanism, an end of the die-casting plate away from the rotary air-drying mechanism is fixedly connected to a molding mechanism, an end of the die-casting plate close to the molding mechanism is fixedly connected to an extrusion mechanism, an inner surface of the molding mechanism is fixedly connected to a sealing mechanism, the servo motor one drives the lead screw to rotate, thereby causing the moving block one to move along the direction of the lead screw, thereby driving the upper rotary air-drying mechanism, the molding mechanism, the extrusion mechanism, and the sealing mechanism to move.

[0011] Preferably, the rotary air-drying mechanism includes a fixed plate three, the inner surface of the fixed plate three is fixedly connected to a servo motor two, the output end of the servo motor two is rotatably connected to a rotating column, the outer surface of the rotating column is fixedly connected to a swing arm, the end of the rotating column away from the servo motor two is fixedly connected to a fan blade, the end of the die-casting plate close to the fixed plate three is fixedly connected to a rotating block, the outer surface of the rotating block is fixedly connected to a push blade, the servo motor two drives the rotating column to rotate, and then drives the fan blades to rotate, and the generated wind force can better cool the high-temperature liquid alloy, thereby avoiding the formation time process and causing the existence of pores, while the rotating column rotates, it drives the swing arm to rotate and come into contact with the push blade, thereby causing the rotating block to rotate, and the rotation of the rotating block drives the molding column to rotate, thereby allowing the liquid alloy to fully contact with the molding block and make the liquid metal flow, thereby avoiding the uneven surface of the liquid and the generation of gaps and pores.

[0012] Preferably, the forming mechanism includes electromagnet 2, the end of electromagnet 2 away from the rotating block is fixedly connected to a forming column, the outer surface of the forming column is slidably connected to electromagnet 3, the end of the battery block 3 away from electromagnet 2 is fixedly connected to a scratch plate 1, the end of the scratch plate 1 away from electromagnet 3 is fixedly connected to a pressing plate, the outer surface of the electromagnet is fixedly connected to a circular ring, the outer surface of the circular ring is slidably connected to a moving ring, the outer surface of the moving ring is fixedly connected to an impact ball, the end of the forming column away from electromagnet 2 is fixedly connected to a positioning block, and electromagnet 1 and electromagnet 3 are started to position electromagnet 2 at a fixed time, thereby controlling the sliding of electromagnet 1, so that the scratch plate 1 scrapes off the alloy solid that may be adhered to the forming plate, and when the mold solidifies, the electromagnet starts electromagnet 3 and then drives the pressing plate to press the alloy that is about to solidify, further compacting the alloy, thereby avoiding the occurrence of pores.

[0013] Preferably, the extrusion mechanism includes two telescopic springs, one end of the two telescopic springs away from the die-casting plate is fixedly connected to the extrusion plate, the outer surface of the extrusion plate is fixedly connected to the second fixed plate, the outer surface of the second fixed plate is fixedly and rotatably connected to a tilting knife plate, and the outer surface of the knocking knife plate is fixedly connected to a brush. In the process of the molding column passing through the extrusion plate, the brush will clean the dust attached to the surface of the molding column to minimize the dust residue in the alloy liquid. At the same time, after the mold is formed, during the process of the molding column returning, the tilting knife plate will shovel the alloy to separate from the molding column, and drop it to the bottom for collection.

[0014] Preferably, the sealing mechanism includes an air suction device, an end of the air suction device close to the electromagnet 2 is fixedly connected to an air outlet pipe, an end of the air suction device away from the air outlet pipe is fixedly connected to an air suction head, an end of the air suction device close to the air suction head is fixedly connected to a fixed column, an outer surface of the fixed column is fixedly connected to a telescopic spring 3, and an outer surface sealing block of the telescopic spring 3. After the molding column moves to the model gap, the air suction device absorbs the air inside the model gap to make the inside of the model gap in a vacuum state as much as possible, thereby avoiding air remaining in the liquid gold during subsequent mold condensation and generating pores, and then increasing the power of the servo motor 2 to increase the rotation speed of the rotating column, and through the transmission of the rotating block, the rotation speed of the molding column is accelerated, thereby increasing the centrifugal force, causing the telescopic spring 3 to stretch, and then the sealing block seals the molding column, so that the liquid crystal can adhere to the surface and be formed.

[0015] Preferably, one end of the second electromagnet close to the die-casting plate is fixedly connected to the outer surface of the rotating block, and the outer surface of the suction device is fixedly connected to the inner surface of the forming column.

[0016] The beneficial effects of the present invention are as follows:

[0017] The present invention provides a melting mechanism. When the heater is working, the heating ring becomes hot, and the melting inner shell is indirectly heated to a high temperature, so that the solid metal is placed inside the separation shell. Since the melting point of the alloy is relatively low, while the impurities such as mud and stones attached to the surface of the alloy have a relatively high melting point, the liquid crystal will be melted first and flow into the bottom of the melting inner shell, thereby achieving the purification of the alloy and preventing the formation of pores on the surface of the valve body due to the presence of foreign matter during subsequent molding.

[0018] The present invention sets a die-casting mechanism, and a servo motor drives the lead screw to rotate, thereby causing the moving block to move along the direction of the lead screw, thereby driving the upper rotating air-drying mechanism, the molding mechanism, the extrusion mechanism, and the sealing mechanism to move. When moving to a certain position, the extrusion plate and the mold bracket are abutted, so that the telescopic spring 2 is compressed, so that the molding column passes through the extrusion plate and enters the inside of the model gap. At the same time, the hydraulic device moves the push rod, so that the liquid alloy enters the model gap. The servo motor 2 drives the rotating column to rotate, and then drives the fan blades to rotate, and the wind force generated can better cool the high-temperature liquid alloy, thereby avoiding the formation time process and causing the existence of pores.

[0019] The present invention provides a molding mechanism, and when the rotating column rotates, the swing arm is driven to rotate and come into contact with the pushing blade, thereby causing the rotating block to rotate. The rotation of the rotating block drives the molding column to rotate, thereby causing the liquid alloy to fully come into contact with the molding block and cause the liquid alloy to flow, thereby avoiding an uneven liquid surface and the generation of gaps and pores.

[0020] The present invention sets a molding mechanism. Before the die-casting mold, it is necessary to clean the surface of the molding column of the device and the inside of the mold gap, and regularly position and start the electromagnets 1 and 3 to the electromagnet 2, thereby controlling the sliding of the electromagnet 1, so that the scratch plate 1 scrapes off the alloy solid that may adhere to the molding plate. When the mold solidifies, the electromagnet starts the electromagnet 3 and then drives the pressing plate to press the alloy that is about to solidify, further compacting the alloy, thereby avoiding the occurrence of pores.

[0021] The present invention sets an extrusion mechanism. When the molding column passes through the extrusion plate, the brush will clean the dust attached to the surface of the molding column, so as to reduce the dust residue in the alloy liquid as much as possible. At the same time, after the mold is formed, when the molding column returns, the tilting knife plate will shovel the alloy to separate from the molding column, and drop it to the bottom for collection. Before the formal die-casting, the upper and lower positions of the movable plate one can be adjusted to make the movable plate one flush with the mold bracket, and the molding column can be continuously moved to make the molding column contact with the cleaning column, so that the positioning block fits with the positioning gap. The rotation of the molding column drives the rotation of the cleaning column, so that the cleaning scraper scrapes off the alloy adhered to the inside of the model notch. When returning, the pull-back plate brings the alloy out, drops it to the bottom and collects it for recycling, which further facilitates the reuse of the device.

[0022] The present invention provides a sealing mechanism. After the molding column moves to the mold notch, the air suction device absorbs the air inside the mold notch to make the inside of the mold notch in a vacuum state as much as possible, thereby avoiding air remaining in the liquid metal during subsequent mold condensation and generating pores. Then, the power of the servo motor 2 is increased to increase the rotation speed of the rotating column. The rotation speed of the molding column is increased through the transmission of the rotating block, thereby increasing the centrifugal force and stretching the telescopic spring 3, thereby causing the sealing block to seal the molding column, so that the liquid crystal can be attached to the surface and formed, and the liquid metal is prevented from flowing into the molding column. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a cross-sectional view of the structure of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the melting mechanism of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the injection mechanism of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the die-casting mechanism of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the cleaning mechanism of the present invention;

[0029] Figure 7 It is a partial structural schematic diagram of the cleaning mechanism of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the rotary air-drying mechanism of the present invention;

[0031] Fig. 9 It is a partial structural schematic diagram of the die-casting mechanism of the present invention;

[0032] Fig.10 yes Fig. 9 The enlarged view of point A in the middle;

[0033] Fig.11 It is a structural schematic diagram of the forming mechanism of the present invention;

[0034] Fig.12 is a structural sectional view of the sealing mechanism of the present invention;

[0035] In the figure: 1, bottom plate; 2, melting mechanism; 3, mold mechanism; 4, die-casting mechanism; 21, heating shell; 22, heater; 23, heating table; 24, heating ring; 25, support plate one; 26, melting inner shell; 27, separation shell; 28, injection mechanism; 281, injection tube one; 282, injection tube two; 283, hydraulic device; 284, push rod; 285, injection ring; 31, mold support; 32, model gap; 33, electromagnet one; 34, cleaning mechanism; 341, support plate two; 342, moving plate one; 343, pulling column; 344, rotating cylinder; 345, fixed plate one; 346, telescopic spring one; 347, cleaning column; 348, cleaning scraper; 349, pull-back plate; 3410, card gap; 41, support plate three; 42, lead screw; 43, support frame; 44, servo motor one; 4 5. Moving block 1; 46. Die-casting plate; 47. Rotating air-drying mechanism; 48. Molding mechanism; 49. Extrusion mechanism; 410. Sealing mechanism; 471. Fixed plate 3; 472. Servo motor 2; 473. Rotating column; 474. Swing arm; 475. Fan blade; 476. Rotating block; 477. Pushing blade; 481. Electromagnet 2; 482. Molding column; 483. Electromagnet 3; 484. Scratching Plate one; 485, pressing plate; 486, ring; 487, moving ring; 488, impact ball; 489, positioning block; 491, telescopic spring two; 492, extrusion plate; 493, fixed plate two; 494, tilting knife plate; 495, brush; 4101, suction device; 4102, suction head; 4103, exhaust pipe; 4104, fixed column; 4105, telescopic spring three; 4106, sealing block. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0037] Example, using Figure 1-Figure 12 A die-casting mold capable of reducing pores in a valve body according to an embodiment of the present invention is described as follows.

[0038] like Figure 1-Figure 12 As shown, a die-casting mold capable of reducing pores in a valve body of the present invention comprises a bottom plate 1, a melting mechanism 2 is fixedly connected to the right side of the upper surface of the bottom plate 1, a mold mechanism 3 is fixedly connected to the middle of the upper surface of the bottom plate 1, and a die-casting mechanism 4 is fixedly connected to the outer surface of the melting mechanism 2;

[0039] The melting mechanism 2 includes a heating shell 21, a heater 22 is fixedly connected to one end of the bottom plate 1 close to the heating shell 21, a heating platform 23 is fixedly connected to the upper surface of the heater 22, a heating ring 24 is fixedly connected to the upper end of the heating platform 23, a support plate 25 is fixedly connected to the inner surface of the heating shell 21, a melting inner shell 26 is fixedly connected to the end of the support plate 25 away from the heating shell 21, a separation shell is fixedly connected to the inner surface of the melting inner shell 26, an injection mechanism 28 is fixedly connected to the outer surface of the melting inner shell 26, the heater 22 heats the heating ring 24 when working, and indirectly heats the melting inner shell 26 to a high temperature, and puts the solid metal into the separation shell 27, because the melting point of the alloy is relatively low, and the impurities of mud and stone attached to the surface of the alloy have a relatively high melting point, the liquid crystal will be melted first and flow into the bottom of the melting inner shell 26, thereby realizing the purification of the alloy, and preventing the formation of pores on the surface of the valve body due to the presence of foreign matter during subsequent molding;

[0040] The injection mechanism 28 includes an injection tube 281, the lower end of which is fixedly connected to an injection tube 282, the outer surface of which is fixedly connected to a hydraulic device 283, the end of the hydraulic device 283 close to the injection tube 282 is slidably connected to a push rod 284, and the end of the injection tube 282 away from the hydraulic device 283 is fixedly connected to an injection ring 285. After the liquid crystal melts, it flows into the injection tube 282, and at the same time, the hydraulic device 283 drives the push rod 284 to push the liquid crystal to the injection ring 285 and finally flows into the model gap 32.

[0041] The mold mechanism 3 includes a mold support 31, and a model gap 32 is set at one end of the mold support 31 close to the injection ring 285. The inner surface of the mold support 31 is fixedly connected to an electromagnet 33, and the outer surface of the mold support 31 is fixedly connected to a cleaning mechanism 34. The extrusion plate 492 is against the mold support 31, so that the telescopic spring 491 is compressed. During the movement of the molding column, the molding column 482 passes through the extrusion plate 492 and enters the interior of the model gap 32. At the same time, the hydraulic device 283 moves the push rod 284, so that the liquid alloy enters the model gap 32.

[0042] The cleaning mechanism 34 includes a supporting plate 2 341, the inner surface of the supporting plate 2 341 is slidably connected to a moving plate 1 342, the outer surface of the supporting plate 2 341 is fixedly slidably connected to a pulling column 343, the moving plate 1 342 is rotatably connected to a rotating cylinder 344, the end of the rotating cylinder 344 away from the moving plate 1 342 is fixedly connected to a fixed plate 1 345, the outer surface of the fixed plate 1 345 is fixedly connected to a telescopic spring 1 346, the end of the telescopic spring 1 346 away from the fixed plate 1 345 is fixedly connected to a cleaning column 347, the outer surface of the cleaning column 347 is fixedly connected to a cleaning scraper 348, and the cleaning column 347 is close to the cleaning scraper 348. One end of 48 is fixedly connected with a pull-back plate 349, and the end of the cleaning column 347 away from the pull-back plate 349 is provided with a locking gap 3410. Before the formal die-casting, the upper and lower positions of the movable plate 342 can be adjusted to make the movable plate 342 flush with the mold support 31, and the forming column 482 is continued to be moved to make the forming column 482 contact with the cleaning column 347, so that the locking block 489 fits with the locking gap 3410. The rotation of the forming column 482 drives the rotation of the cleaning column 347, and then the cleaning scraper 348 scrapes off the alloy adhered to the inside of the model notch 32. When returning, the pull-back plate 349 brings the alloy out, drops it to the bottom and is collected for recycling.

[0043] The lower surface of the heating shell 21 is fixedly connected to the upper surface of the base plate 1 , the lower surface of the support bracket is fixedly connected to the middle of the upper surface of the base plate 1 , and the lower end of the support plate 2 341 is fixedly connected to the outer surface of the mold bracket 31 .

[0044] The die-casting mechanism 4 includes a support plate 3 41, and the end of the support plate 3 41 away from the heating shell 21 is rotatably connected to the lead screw 42, and the end of the lead screw 42 away from the support plate 3 41 is fixedly connected to a support frame 43, and the outer surface of the support frame 43 is fixedly connected to a servo motor 1 44, and the outer surface of the lead screw 42 is rotatably connected to a moving block 1 45, and the upper surface of the moving block 1 45 is fixedly connected to a die-casting plate 46, and the end of the die-casting plate 46 close to the servo motor 1 44 is fixedly connected to a rotary air-drying mechanism 47, and the end of the die-casting plate 46 away from the rotary air-drying mechanism 47 is fixedly connected to a molding mechanism 48, and the end of the die-casting plate 46 close to the molding mechanism 48 is fixedly connected to an extrusion mechanism 49, and the inner surface of the molding mechanism 48 is fixedly connected to a sealing mechanism 410, and the servo motor 1 44 drives the lead screw 42 to rotate, thereby causing the moving block 1 45 to move along the direction of the lead screw 42, thereby driving the upper rotary air-drying mechanism 47, the molding mechanism 48, the extrusion mechanism 49, and the sealing mechanism 410 to move.

[0045] The rotating air-drying mechanism 47 includes a fixed plate 3 471, the inner surface of the fixed plate 3 471 is fixedly connected to the servo motor 2 472, the output end of the servo motor 2 472 is rotatably connected to a rotating column 473, the outer surface of the rotating column 473 is fixedly connected to a swing arm 474, the end of the rotating column 473 away from the servo motor 2 472 is fixedly connected to a fan blade 475, the end of the die-casting plate 46 close to the fixed plate 3 471 is fixedly connected to a rotating block 476, the outer surface of the rotating block 476 is fixedly connected to a push blade 477, and the servo motor 2 472 drives the rotating column 473 to rotate. The rotating column 473 rotates, thereby driving the fan blades 475 to rotate, and the generated wind can better cool the high-temperature liquid alloy, thereby avoiding the existence of pores during the shaping process. While the rotating column 473 rotates, it drives the swing arm 474 to rotate and come into contact with the push blade 477, thereby causing the rotating block 476 to rotate. The rotation of the rotating block drives the forming column 482 to rotate, thereby allowing the liquid alloy to fully contact the forming block and make the liquid metal flow, thereby avoiding the uneven surface of the liquid and the generation of gaps and pores.

[0046] The molding mechanism 48 includes an electromagnet 2 481, an end of the electromagnet 2 481 away from the rotating block 476 is fixedly connected to a molding column 482, an outer surface of the molding column 482 is slidably connected to an electromagnet 3 483, an end of the battery block 3 away from the electromagnet 2 481 is fixedly connected to a rubbing plate 1 484, an end of the rubbing plate 1 484 away from the electromagnet 3 is fixedly connected to a pressing plate 485, an outer surface of the electromagnet is fixedly connected to a circular ring 486, an outer surface of the circular ring 486 is slidably connected to a moving ring 487, and an outer surface of the moving ring 487 is fixedly connected to a moving ring 487. An impact ball 488 is fixedly connected to the surface, and a positioning block 489 is fixedly connected to the end of the forming column 482 away from the electromagnet 2 481. The electromagnet 1 33 and the electromagnet 3 483 are started to position the electromagnet 2 481 regularly, and then the sliding of the electromagnet 1 33 is controlled, so that the scratch plate 1 484 scrapes off the alloy solid that may be adhered to the forming plate. When the mold solidifies, the electromagnet starts the electromagnet 3 483 and then drives the pressing plate 485 to press the alloy that is about to solidify, further compacting the alloy, thereby avoiding the occurrence of pores.

[0047] The extrusion mechanism 49 includes a telescopic spring 491, and the end of the telescopic spring 491 away from the die-casting plate 46 is fixedly connected to the extrusion plate 492, and the outer surface of the extrusion plate 492 is fixedly connected to the fixed plate 493, and the outer surface of the fixed plate 493 is fixedly and rotatably connected to a tilting knife plate 494, and the outer surface of the knocking knife plate is fixedly connected to a brush 495. In the process of the molding column 482 passing through the extrusion plate 492, the brush 495 will clean the dust attached to the surface of the molding column 482 to minimize the dust residue in the alloy liquid. At the same time, after the mold is formed, when the molding column 482 returns, the tilting knife plate 494 will shovel the alloy to separate from the molding column 482, and drop it to the bottom for collection.

[0048] The sealing mechanism 410 includes an air suction device 4101, one end of the air suction device 4101 close to the electromagnet 2 481 is fixedly connected to an air outlet pipe 4103, one end of the air suction device 4101 away from the air outlet pipe 4103 is fixedly connected to an air suction head 4102, one end of the air suction device 4101 close to the air suction head 4102 is fixedly connected to a fixed column 4104, the outer surface of the fixed column 4104 is fixedly connected to a telescopic spring 3 4105, and a sealing block 4106 on the outer surface of the telescopic spring 3 4105. After the molding column 482 moves to the mold notch 32, the air suction device Arrangement 4101 absorbs the air inside the model gap 32 and makes the inside of the model gap 32 in a vacuum state as much as possible, thereby avoiding the air remaining in the liquid gold and forming pores when the mold is subsequently condensed, and then the power of servo motor 2 472 is increased, thereby increasing the speed of rotating column 473, and through the transmission of rotating block 476, the rotation speed of molding column 482 is increased, thereby increasing the centrifugal force, causing the telescopic spring 3 4105 to stretch, and then the sealing block 4106 to seal the molding column 482, so that the liquid crystal can adhere to the surface and be formed.

[0049] One end of the second electromagnet 481 close to the die-casting plate 46 is fixedly connected to the outer surface of the rotating block 476 , and the outer surface of the suction device 4101 is fixedly connected to the inner surface of the forming column 482 .

[0050] The specific workflow is as follows:

[0051] When working, the heater 22 heats the heating ring 24, indirectly heating the melting inner shell 26 to a high temperature, and placing the solid metal into the separation shell 27. Since the melting point of the alloy is relatively low, while the impurities such as mud and stones attached to the surface of the alloy have a relatively high melting point, the liquid crystal will be melted first and flow into the bottom of the melting inner shell 26, thereby achieving the purification of the alloy. After that, the servo motor 44 drives the lead screw 42 to rotate, thereby causing the moving block 45 to move along the direction of the lead screw 42, thereby driving the upper rotating air-drying mechanism 47, the molding mechanism 48, the extrusion mechanism 49, and the sealing mechanism 410 to move. When moving to a certain position, the extrusion plate 492 abuts against the mold bracket 31, thereby compressing the telescopic spring 491, thereby causing the molding column 4 82 passes through the extrusion plate 492 and enters the inside of the mold gap 32. At the same time, the hydraulic device 283 moves the push rod 284, so that the liquid alloy enters the mold gap 32. The servo motor 472 drives the rotating column 473 to rotate, and then drives the fan blade 475 to rotate, and the wind force generated can better cool the high-temperature liquid alloy. When the rotating column 473 rotates, it drives the swing arm 474 to rotate and contact with the push blade 477, so that the rotating block 476 rotates. The rotation of the rotating block drives the forming column 482 to rotate, so that the liquid alloy fully contacts the forming block and the liquid metal flows, thereby avoiding the uneven surface of the liquid. Before the die-casting mold, it is necessary to align the surface of the device forming column 482 and the mold gap. The interior is cleaned, and the electromagnet 1 33 and the electromagnet 3 483 are started at a fixed time to position the electromagnet 2 481, and then the sliding of the electromagnet 1 33 is controlled, so that the scraping plate 1 484 scrapes off the alloy solids that may adhere to the forming plate. At the same time, when the forming column 482 passes through the extrusion plate 492, the brush 495 cleans the dust attached to the surface of the forming column 482 to minimize the dust residue in the alloy liquid. At the same time, after the mold is formed, when the forming column 482 returns, the tilting knife plate 494 shovels the alloy to separate from the forming column 482 and drops it to the bottom for collection. Before the formal die-casting, the upper and lower positions of the moving plate 1 342 can be adjusted to make the moving plate 1 342 flush with the mold bracket 31, and the forming column 482 is continued to be moved to make The molding column 482 contacts the cleaning column 347, so that the positioning block 489 fits with the positioning gap 3410. The rotation of the molding column 482 drives the rotation of the cleaning column 347, so that the cleaning scraper 348 scrapes off the alloy adhered to the inside of the model gap 32. When returning, the pull-back plate 349 brings the alloy out, drops it to the bottom and collects it for recycling. The most important point is that after the molding column 482 moves to the model gap 32, the suction device 4101 absorbs the air inside the model gap 32, and makes the inside of the model gap 32 in a vacuum state as much as possible, thereby avoiding the air remaining in the liquid gold during the subsequent mold condensation and the formation of pores. Then, the power of the servo motor 472 is increased, so that the speed of the rotating column 473 becomes faster, and it is driven by the rotating block 476.As a result, the rotation speed of the molding column 482 becomes faster, thereby increasing the centrifugal force, causing the telescopic spring 3 4105 to stretch, and then the sealing block 4106 seals the molding column 482, so that the liquid crystal can adhere to the surface and be formed.

[0052] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A die-casting mold capable of reducing pores in a valve body, comprising a base plate (1), characterized in that: A melting mechanism (2) is fixedly connected to the right side of the upper surface of the bottom plate (1), a mold mechanism (3) is fixedly connected to the middle of the upper surface of the bottom plate (1), and a die-casting mechanism (4) is fixedly connected to the outer surface of the melting mechanism (2); The melting mechanism (2) comprises a heating shell (21), a heater (22) is fixedly connected to one end of the bottom plate (1) close to the heating shell (21), a heating platform (23) is fixedly connected to the upper surface of the heater (22), a heating ring (24) is fixedly connected to the upper end of the heating platform (23), a support plate 1 (25) is fixedly connected to the inner surface of the heating shell (21), a melting inner shell (26) is fixedly connected to one end of the support plate 1 (25) away from the heating shell (21), a separation shell is fixedly connected to the inner surface of the melting inner shell (26), and an injection mechanism (28) is fixedly connected to the outer surface of the melting inner shell (26); The injection mechanism (28) comprises an injection pipe 1 (281), the lower end of the injection pipe 1 (281) is fixedly connected to an injection pipe 2 (282), the outer surface of the injection pipe 1 (281) is fixedly connected to a hydraulic device (283), an end of the hydraulic device (283) close to the injection pipe 2 (282) is slidably connected to a push rod (284), and an end of the injection pipe 2 (282) away from the hydraulic device (283) is fixedly connected to an injection ring (285); The mold mechanism (3) comprises a mold support (31), one end of the mold support (31) close to the injection ring (285) is provided with a mold notch (32), an inner surface of the mold support (31) is fixedly connected to an electromagnet (33), and an outer surface of the mold support (31) is fixedly connected to a cleaning mechanism (34); The cleaning mechanism (34) comprises a second support plate (341), the inner surface of the second support plate (341) is slidably connected to a first movable plate (342), the first movable plate (342) is rotatably connected to a rotating cylinder (344), the end of the rotating cylinder (344) away from the first movable plate (342) is fixedly connected to a first fixed plate (345), the outer surface of the first fixed plate (345) is fixedly connected to a first telescopic spring (346), the end of the first telescopic spring (346) away from the first fixed plate (345) is fixedly connected to a cleaning column (347), the outer surface of the cleaning column (347) is fixedly connected to a cleaning scraper (348), the end of the cleaning column (347) close to the cleaning scraper (348) is fixedly connected to a pull-back plate (349), and the end of the cleaning column (347) away from the pull-back plate (349) is provided with a locking gap (3410); The lower surface of the heating shell (21) is fixedly connected to the upper surface of the bottom plate (1), the lower surface of the support bracket is fixedly connected to the middle of the upper surface of the bottom plate (1), and the lower end of the second support plate (341) is fixedly connected to the outer surface of the mold bracket (31).

2. A die-casting mold capable of reducing pores in a valve body according to claim 1, characterized in that: The die-casting mechanism (4) comprises a support plate three (41), wherein one end of the support plate three (41) away from the heating shell (21) is rotatably connected to a lead screw (42), and one end of the lead screw (42) away from the support plate three (41) is rotatably connected to a support frame (43), and the outer surface of the support frame (43) is fixedly connected to a servo motor one (44), and the outer surface of the lead screw (42) is rotatably connected to a moving block one (45), and the upper surface of the moving block one (45) is fixedly connected to a die-casting plate (46), and one end of the die-casting plate (46) close to the servo motor one (44) is fixedly connected to a rotary air-drying mechanism (47), and one end of the die-casting plate (46) away from the rotary air-drying mechanism (47) is fixedly connected to a molding mechanism (48), and one end of the die-casting plate (46) close to the molding mechanism (48) is fixedly connected to an extrusion mechanism (49), and the inner surface of the molding mechanism (48) is fixedly connected to a sealing mechanism (410).

3. A die-casting mold capable of reducing pores in a valve body according to claim 2, characterized in that: The rotary air-drying mechanism (47) comprises a fixed plate three (471), the inner surface of the fixed plate three (471) is fixedly connected to a servo motor two (472), the output end of the servo motor two (472) is rotatably connected to a rotating column (473), the outer surface of the rotating column (473) is fixedly connected to a swing arm (474), the end of the rotating column (473) away from the servo motor two (472) is fixedly connected to a fan blade (475), the end of the die-cast plate (46) close to the fixed plate three (471) is rotatably connected to a rotating block (476), and the outer surface of the rotating block (476) is fixedly connected to a push blade (477).

4. A die-casting mold capable of reducing pores in a valve body according to claim 3, characterized in that: The forming mechanism (48) comprises an electromagnet 2 (481), an end of the electromagnet 2 (481) away from the rotating block (476) is fixedly connected to a forming column (482), an outer surface of the forming column (482) is slidably connected to an electromagnet 3 (483), an end of the electromagnet 3 away from the electromagnet 2 (481) is fixedly connected to a scratch plate 1 (484), an end of the scratch plate 1 (484) away from the electromagnet 3 is fixedly connected to a pressing plate (485), an outer surface of the electromagnet 3 is fixedly connected to a circular ring (486), an outer surface of the circular ring (486) is slidably connected to a moving ring (487), an outer surface of the moving ring (487) is fixedly connected to an impact ball (488), and an end of the forming column (482) away from the electromagnet 2 (481) is fixedly connected to a positioning block (489).

5. A die-casting mold capable of reducing pores in a valve body according to claim 4, characterized in that: The sealing mechanism (410) comprises an air suction device (4101), wherein one end of the air suction device (4101) close to the second electromagnet (481) is fixedly connected to an air outlet pipe (4103), and one end of the air suction device (4101) away from the air outlet pipe (4103) is fixedly connected to an air suction head (4102), and one end of the air suction device (4101) close to the air suction head (4102) is fixedly connected to a fixed column (4104), and an outer surface of the fixed column (4104) is fixedly connected to a telescopic spring three (4105), and an outer surface of the telescopic spring three (4105) is connected to a sealing block (4106).

6. A die-casting mold capable of reducing pores in a valve body according to claim 5, characterized in that: One end of the second electromagnet (481) close to the die-casting plate (46) is fixedly connected to the outer surface of the rotating block (476), and the outer surface of the suction device (4101) is fixedly connected to the inner surface of the molding column (482).

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