Tungsten-molybdenum alloy part forming and pressing equipment

Abstract

The invention relates to the technical field of tungsten-molybdenum alloy part forming and pressing equipment, in particular to tungsten-molybdenum alloy part forming and pressing equipment which is characterized in that a base plate is arranged on the ground, a horizontal conveying device is arranged on one side of the top of the base plate, and a conveying base is arranged on one side of the conveying end of the horizontal conveying device; the mold is detachably placed at the top of the conveying base through the containing groove, the uniform scattering device is arranged at the top of the base plate and located on one side of the horizontal conveying device, the paving and compacting device is arranged in the middle of the horizontal conveying device, and the vacuumizing hot press forming device is arranged on the side, away from the uniform scattering device, of the horizontal conveying device. According to the invention, during vacuumizing treatment operation before metal powder pressing, the problem of looseness among metal powder particles caused by upward moving airflow due to vacuumizing can be effectively avoided, and the metal powder does not need to be manually fed and uniformly spread, so that the effect of improving the quality of a formed workpiece is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of tungsten-molybdenum alloy forming and pressing equipment, in particular to tungsten-molybdenum alloy forming and pressing equipment. Background Art

[0002] Tungsten-molybdenum alloy parts are alloys composed of tungsten and molybdenum. They are usually formed by powder metallurgy sintering, that is, tungsten and molybdenum metal powders are placed in a mold barrel and a press is used to provide a certain pressure to compress the powder into shape, and then sintering is performed. During the pressing and forming process of some metal powder products with higher precision requirements, the matching accuracy between the molds is high and the matching gap is small. In order to avoid the air in the mold from being unable to be discharged when the mold is pressurized, the mold will be vacuumed in advance; during the vacuuming process, the air at the bottom moves upward with a large stroke, and the upward airflow will drive some loose powder particles to move upward (at this time, the metal powder has not been pressed by pressure, but is only piled in the mold, so the particles are relatively unstable, and some The metal powder is usually formed by pressing the metal powder into the mold, and the metal powder is pressed into the mold, which is very time-consuming and labor-intensive. There is a lack of a vacuuming process before the metal powder is pressed, which can effectively avoid the problem of loosening of the metal powder particles caused by the upward airflow caused by the vacuuming, and eliminate the need for manual loading and evenly leveling of the metal powder, thereby improving the quality of the workpiece. Summary of the Invention

[0003] The purpose of the present invention is to provide a tungsten-molybdenum alloy forming and pressing device to solve the problems raised in the above-mentioned background technology. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tungsten-molybdenum alloy forming and pressing device, comprising a base plate, which is arranged on the ground; and a horizontal conveying device, which is arranged on one side of the top of the base plate, a conveying base is provided on one side of the conveying end of the horizontal conveying device, a placement groove for accommodating the mold is provided on the top of the conveying base, and the mold is detachably placed on the top of the conveying base through the placement groove, and the top of the mold is higher than the top height of the conveying base, a uniform spreading device is provided on the top of the base plate and the uniform spreading device is located on one side of the horizontal conveying device, a paving and compacting device is provided in the middle of the horizontal conveying device, and a vacuum hot pressing forming device is provided on the side of the horizontal conveying device away from the uniform spreading device.

[0004] Preferably, the horizontal conveying device includes a conveying frame, two conveying cylinders are symmetrically and rotatably provided at both ends of the conveying frame, a conveyor belt is sleeved on the two conveying cylinders, an inner support block is provided on the inner side of the conveying belt, and the two sides of the inner support block are connected to the two ends of the inner side of the conveying frame, the inner side of the conveyor belt contacts the inner support block, a driving motor is provided on one side of the conveying frame, the output end of the driving motor is connected to the rotating connection between one of the conveying cylinders and the conveying frame, a conveying base is set on the conveyor belt, the bottom of the conveying base is connected to the top of the conveyor belt, and the two sides of the conveying base are slidably connected to the two ends of the top of the conveying frame along the horizontal direction.

[0005] Preferably, the uniform spreading device includes a quantitative component, which includes a driving frame, which is horizontally arranged on the top of the base plate and directly above one side of the conveyor belt, and a loading cylinder is vertically arranged on the top of one side of the driving frame, and a sliding plate is horizontally slidably connected to the driving frame, and a through hole is provided on the sliding plate, and a quantitative cylinder is provided at the bottom of the sliding plate, and the top of the quantitative cylinder is open and communicated with the through hole on the sliding plate, and the bottom of the loading cylinder is open and communicated with the through hole on the sliding plate, and when the sliding plate slides a certain distance, the side end of the sliding plate closes the bottom of the loading cylinder, and the bottom of the quantitative cylinder is provided with a discharge port, and a closing plate is provided at one end of the bottom of the driving frame, and the closing plate closes the discharge port at the bottom of the quantitative cylinder, and a first electric push rod is horizontally arranged at the bottom of the driving frame, and the output end of the first electric push rod is connected to the side end of the quantitative cylinder.

[0006] Preferably, the uniform spreading device also includes a uniform discharging component, which includes a uniform fan blade, a feeding cavity and a distribution cavity are respectively provided at the upper and lower parts of the interior of the metering cylinder, the bottom of the feeding cavity is conical, the uniform fan blade is rotatably arranged inside the distribution cavity, the two blades at the top of the uniform fan blade are located directly below the bottom of the feeding cavity, the two blades at the bottom of the uniform fan blade are located directly above the discharge port at the bottom of the metering cylinder, a first gear is provided on the outside of the metering cylinder, the first gear is connected to the rotating connection between the uniform fan blade and the metering cylinder, a second gear is meshed with the right side of the first gear, and the second gear is meshed with the The wheel rotation is set at the side end of the metering cylinder, and the side end of the metering cylinder is provided with an arc-shaped slide, which is located directly above the first gear and the second gear. The arc-shaped slide is provided with a first sliding member slidably connected thereto, and the side end of the first sliding member is rotatably connected to the third gear. The side end of the metering cylinder is rotatably provided with a fourth gear, and the fourth gear is located directly above the arc-shaped slide. The third gear is respectively engaged with the first gear and the fourth gear, and the third gear is pre-engaged with the second gear. A first toothed rod is horizontally provided on the side of the bottom of the drive frame away from the first electric push rod, and the first toothed rod is pre-engaged with the fourth gear.

[0007] Preferably, the paving and compacting device includes a driving paving assembly, and the driving paving assembly includes a driving slide, which is arranged on one side of the conveying frame, and a driving groove is provided on the driving slide, the bottom of the driving groove is provided with a horizontal groove and one side of the driving groove is connected to a vertical groove, and an arc groove is used for transition between the horizontal groove and the vertical groove, and the side end of the driving slide is slidably connected to a sliding block in the horizontal direction, and the side end of the sliding block is provided with a V-shaped groove, and a second sliding member is provided on one side of the driving slide, and the second sliding member passes through the driving groove and the V-shaped groove and is slidably connected to the two, and a second electric push rod is horizontally provided on one side of the driving slide, and the output end of the second electric push rod is connected to the side end of the sliding block, and the second sliding member is provided with a connecting frame at the end away from the sliding block, and a plurality of first springs are horizontally provided on the inner side of the connecting frame, and a paving block is provided on one side of the connecting frame, and one end of the several first springs at the side end of the paving block is connected, and an inclined surface is provided at the upper and lower ends of the paving block.

[0008] Preferably, the paving and compacting device also includes a linkage compaction assembly, which includes a second toothed rod, two sliding racks symmetrically arranged on both sides of the top of the conveying frame, and two sliding rods symmetrically arranged directly above the conveyor belt, the two sliding rods are respectively connected to the side ends of the two sliding racks for sliding up and down, and a compacting plate is horizontally arranged at the bottom of the two sliding rods, one side of the compacting plate is arranged in an arc shape, and the size of the compacting plate is consistent with the size of the inner side of the mold, each sliding rack is provided with a second spring on the inside, and the side end of each sliding rod is respectively connected to the top of a second spring, and a mounting rack is provided on the top of the conveying frame, and a fifth gear is rotatably arranged on the side end of the mounting rack, and the fifth gear is meshed with the upper end of the second toothed rod, and a connecting rod is provided on the top of the two sliding rods, and a third toothed rod is vertically provided on the other end of the connecting rod, and the fifth gear is located between the second toothed rod and the third toothed rod, and the lower end of the third toothed rod is meshed with the fifth gear.

[0009] Preferably, the vacuum hot pressing forming device includes a vacuum hot pressing component, and the vacuum hot pressing component includes a third electric push rod, which is vertically arranged on the base plate and located at the end of the conveyor frame away from the loading barrel, the third electric push rod is located directly above the conveyor belt and the output end of the third electric push rod is arranged downward, and a pressure plate is horizontally arranged at the output end of the third electric push rod, and two sealing plates are vertically and symmetrically arranged at both ends of the pressure plate, and the bottom of the pressure plate is horizontally connected to a hot pressing plate, and the hot pressing plate is matched in size with the inner side of the mold, and two fixing rods are symmetrically arranged on both sides of the pressure plate away from the two sealing plates, and each fixing rod is vertically provided with a A fourth toothed rod, a vacuum cover is provided on the outer side of the hot pressing plate and the suction pressing plate, the top of the vacuum cover passes through the output end of the third electric push rod and is connected to it for up and down sliding, and a sealing gasket is provided at the sliding connection between the two, the tops of the two sealing plates are respectively stopped at both sides of the top of the inner top of the vacuum cover, and a number of air outlet holes are equidistantly provided on both sides of the vacuum cover from top to bottom, and the two sealing plates are located directly above the two groups of air outlet holes, and the sides of the two sealing plates away from each other are in contact with both sides of the inner side of the vacuum cover respectively, and a sealing gasket is provided on the contact surface of the sealing plate and the vacuum cover, and the bottom of the vacuum cover is provided with an opening that is the same size as the mold opening, and a sealing gasket is provided at the bottom of the vacuum cover.

[0010] Preferably, the vacuum hot pressing forming device further includes a first shielding assembly and a second shielding assembly, the first shielding assembly and the second shielding assembly have the same structure and are symmetrically arranged on both sides of the interior of the vacuum cover, the first shielding assembly includes a fifth toothed rod, and a receiving groove is provided on both sides of the interior of the vacuum cover, the fifth toothed rod is horizontally arranged at the bottom of the interior of the receiving groove on one side of the vacuum cover, two rotating frames are symmetrically provided on both sides of the fifth toothed rod, and a sixth gear and a seventh gear are symmetrically provided at the upper and lower ends of each rotating frame, the sixth gear is located directly below the fourth toothed rod and the fourth toothed rod is pre-engaged with the sixth gear, the fourth toothed rod is located inside the receiving groove and the fixed rod passes through the side end of the receiving groove and is slidably connected to it up and down, the sixth gear The rotation connection between the gear and the seventh gear and the rotating frame is provided with a first pulley, and the two first pulleys are provided with a first transmission belt. A sixth toothed rod is horizontally provided on one side of the interior of the vacuum cover, and the sixth toothed rod passes through the side end of the accommodating groove and is horizontally slidably connected thereto. A through groove is provided in the middle of the sixth toothed rod, and the two ends of the through groove are rotatably connected to the eighth gear and the ninth gear. The rotation connection between the eighth gear and the ninth gear and the sixth toothed rod is provided with a second pulley, and the two second pulleys are provided with a second transmission belt. The bottom of the sixth toothed rod is meshed with the seventh gear, and the top of the sixth toothed rod is slidably connected to a shielding plate, and a row of teeth are provided at the bottom of the shielding plate, and the bottom of the shielding plate is meshed with the ninth gear; The two shielding plates in the first shielding assembly and the second shielding assembly are located on the same horizontal line with a gap therebetween.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, when it is necessary to enter a vacuum state before pressing the metal powder, first, the mold filled with metal powder is controlled to be conveyed to the bottom of the vacuum cover by the horizontal conveying device, and then the vacuum cover and the conveying base are controlled to dock with each other by the vacuum hot pressing component, and then the air inside the vacuum cover is discharged by the vacuum hot pressing component. At the same time, the first shielding component and the second shielding component are used to shield the top of the mold to prevent the rising air flow from loosening the metal powder. After the internal air is completely discharged, as the hot pressing plate continues to descend, the first shielding component and the second shielding component automatically release the shielding on the rising of the mold to facilitate the hot pressing plate to press the metal powder in the mold, thereby achieving the vacuum treatment operation before pressing the metal powder, which can effectively avoid the problem of loosening between the metal powder particles caused by the upward airflow caused by vacuuming, thereby improving the quality of the workpiece after molding.

[0012] In the present invention, before the metal powder is pressed and formed, the metal powder must first be loaded into the mold. The uniform spreading device can be controlled to spread a uniform and quantitative amount of metal powder inside the mold. After the laying is completed, the mold is controlled by the horizontal conveying device to be transported to the bottom of the paving and compacting device. The metal powder inside the mold can be flattened by controlling the paving and compacting device to make its top surface tend to be flat. After the paving is completed, the metal powder is compacted to enhance the tightness between the metal powders to avoid the metal powder being easily affected by the rising airflow and loosening during subsequent vacuuming, thereby reducing the possibility of metal powder loosening and generating gaps to a certain extent, thereby achieving the effect of improving the quality of the workpiece after pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 Schematic diagram of the expanded structure of the horizontal conveying device in the present invention; Figure 3 Schematic diagram of the expanded structure of the mold and the conveying base in the present invention; Figure 4 A side view of the uniform spreading device, mold and conveying base in the present invention; Figure 5 Schematic diagram of the three-dimensional structure of the quantitative component in the present invention; Figure 6 A side cross-sectional view of a local structure of a quantitative component in the present invention; Figure 7 It is a partial structural schematic diagram of the uniform spreading device in the present invention; Figure 8 for Figure 7 Enlarged view of point A in the middle; Figure 9It is a schematic diagram of the three-dimensional structure of the horizontal conveying device and the paving and compacting device in the present invention; Figure 10 It is a schematic diagram of the three-dimensional structure of the paving and compacting device in the present invention; Figure 11 Schematic diagram of the local structure of the paving and compacting device in the present invention Figure 1 ; Figure 12 This is a schematic diagram of the three-dimensional structure of the driving paving assembly, the mold and the conveying base in the present invention; Figure 13 This is a schematic diagram of the three-dimensional structure of the driving and paving assembly of the present invention; Figure 14 Schematic diagram of the local structure of the paving and compacting device in the present invention Figure 2 ; Figure 15 Schematic diagram of the three-dimensional structure of the vacuum hot pressing forming device of the present invention; Figure 16 This is a cross-sectional view of the vacuum hot pressing forming device of the present invention. Figure 1 ; Figure 17 This is a cross-sectional view of the vacuum hot pressing forming device of the present invention. Figure 2 ; Figure 18 This is a cross-sectional view of the vacuum hot pressing forming device of the present invention. Figure 3 ; Figure 19 It is a partial structural diagram of the vacuum hot pressing forming device of the present invention; Figure 20 Schematic diagram of the three-dimensional structure of the first shielding component, the second shielding component, the mold and the conveying base in the present invention; Figure 21 A side view of the unfolded structure of the first shielding component in the present invention; Figure 22 It is a partial side sectional view of the first shielding component in the present invention.

[0014] In the figure: 1. Base plate; 2. Horizontal conveying device; 21. Conveying frame; 22. Conveying cylinder; 23. Conveyor belt; 24. Inner support block; 25. Driving motor; 3. Conveying base; 4. Mold; 5. Uniform spreading device; 51. Dosing assembly; 511. Driving frame; 512. Loading cylinder; 513. Sliding plate; 514. Dosing cylinder; 515. Closing plate; 516. First electric push rod; 52. Uniform discharging assembly; 520. Uniform fan blade; 521. Discharging chamber; 52 2. Material distribution chamber; 523. First gear; 524. Second gear; 525. Curved carriage; 526. First sliding member; 527. Third gear; 528. Fourth gear; 529. First toothed rod; 6. Paving and compacting device; 61. Driving paving assembly; 611. Driving carriage; 612. Driving groove; 613. Sliding block; 614. V-shaped groove; 615. Second sliding member; 616. Second electric push rod; 617. Connecting frame; 618. First spring; 619 , paving block; 62, linkage compacting assembly; 621, second toothed rod; 622, sliding frame; 623, sliding rod; 624, compacting plate; 625, second spring; 626, mounting frame; 627, fifth gear; 628, connecting rod; 629, third toothed rod; 7, vacuum hot pressing molding device; 71, vacuum hot pressing assembly; 711, third electric push rod; 712, vacuum pressing plate; 713, sealing plate; 714, hot pressing plate; 715, fixing rod; 716, Fourth toothed rod; 717, vacuum cover; 718, air outlet; 72, first shielding assembly; 721, fifth toothed rod; 722, receiving groove; 723, rotating frame; 724, sixth gear; 725, seventh gear; 726, first pulley; 727, first transmission belt; 728, sixth toothed rod; 729, eighth gear; 730, ninth gear; 731, second pulley; 732, second transmission belt; 733, shielding plate; 74, second shielding assembly. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0016] See also Figures 1 to 22The present invention provides a technical solution: a tungsten-molybdenum alloy forming and pressing equipment, comprising a base plate 1, which is arranged on the ground; and a horizontal conveying device 2, which is arranged on one side of the top of the base plate 1, and a conveying base 3 is provided on one side of the conveying end of the horizontal conveying device 2. The top of the conveying base 3 is provided with a placement groove for accommodating a mold 4, and the mold 4 is detachably placed on the top of the conveying base 3 through the placement groove. The top of the mold 4 is higher than the top height of the conveying base 3, and a uniform spreading device 5 is provided on the top of the base plate 1 and the uniform spreading device 5 is located on one side of the horizontal conveying device 2. A leveling and compacting device 6 is provided in the middle of the horizontal conveying device 2, and a vacuum hot pressing forming device 7 is provided on the side of the horizontal conveying device 2 away from the uniform spreading device 5.

[0017] In this embodiment, Figures 2 to 8 As shown, the horizontal conveying device 2 includes a conveying frame 21, and two conveying cylinders 22 are symmetrically and rotatably provided at both ends of the conveying frame 21. A conveyor belt 23 is sleeved on the two conveying cylinders 22. An inner support block 24 is provided on the inner side of the conveying belt 23, and both sides of the inner support block 24 are connected to the two ends of the inner side of the conveying frame 21. The inner side of the conveyor belt 23 contacts the inner support block 24. A driving motor 25 is provided on one side of the conveying frame 21, and the output end of the driving motor 25 is connected to the rotating connection between one of the conveying cylinders 22 and the conveying frame 21. The conveying base 3 is arranged on the conveying belt 23, and the bottom of the conveying base 3 is connected to the top of the conveying belt 23. The two sides of the conveying base 3 are slidably connected to the two ends of the top of the conveying frame 21 along the horizontal direction; The uniform spreading device 5 includes a quantitative component 51, and the quantitative component 51 includes a driving frame 511. The driving frame 511 is horizontally arranged on the top of the base plate 1 and is located directly above one side of the conveyor belt 23. A loading cylinder 512 is vertically arranged on the top of one side of the driving frame 511. A sliding plate 513 is horizontally slidably connected to the driving frame 511. The sliding plate 513 is provided with a through hole. A quantitative cylinder 514 is provided at the bottom of the sliding plate 513. The top of the quantitative cylinder 514 is open and connected to the through hole on the sliding plate 513. The bottom of 512 is open and connected to the through hole on the sliding plate 513. When the sliding plate 513 slides a certain distance, the side end of the sliding plate 513 closes the bottom of the upper barrel 512. The bottom of the quantitative barrel 514 is provided with a discharge port. One end of the bottom of the driving frame 511 is provided with a closing plate 515, and the closing plate 515 closes the discharge port at the bottom of the quantitative barrel 514. A first electric push rod 516 is horizontally provided at the bottom of the driving frame 511, and the output end of the first electric push rod 516 is connected to the side end of the quantitative barrel 514. The uniform spreading device 5 also includes a uniform discharging component 52, which includes a uniform fan blade 520. The upper and lower parts of the interior of the metering cylinder 514 are respectively provided with a feeding cavity 521 and a distribution cavity 522. The bottom of the feeding cavity 521 is conical. The uniform fan blade 520 is rotatably arranged inside the distribution cavity 522. The two blades at the top of the uniform fan blade 520 are located directly below the bottom of the feeding cavity 521. The two blades at the bottom of the uniform fan blade 520 are located directly above the bottom discharge port of the metering cylinder 514. A first gear 523 is provided on the outside of the metering cylinder 514. The first gear 523 is connected to the rotating connection between the uniform fan blade 520 and the metering cylinder 514. The right side of the first gear 523 is engaged with a second gear 524, and the second gear 524 is rotatably arranged on the metering cylinder 514. The side end of the measuring cylinder 514 and the side end of the metering cylinder 514 are provided with an arc-shaped slide 525, which is located directly above the first gear 523 and the second gear 524. The arc-shaped slide 525 is provided with a first sliding member 526 slidingly connected thereto, and the side end of the first sliding member 526 is rotatably connected to the third gear 527. The side end of the metering cylinder 514 is rotatably provided with a fourth gear 528, and the fourth gear 528 is located directly above the arc-shaped slide 525. The third gear 527 is respectively engaged with the first gear 523 and the fourth gear 528, and the third gear 527 is pre-engaged with the second gear 524. A first toothed rod 529 is horizontally provided on the side of the bottom of the driving frame 511 away from the first electric push rod 516, and the first toothed rod 529 is pre-engaged with the fourth gear 528.

[0018] In this embodiment, Figures 9 to 14 As shown, the paving and compacting device 6 includes a driving paving assembly 61, and the driving paving assembly 61 includes a driving slide 611. The driving slide 611 is arranged on one side of the conveying frame 21. A driving groove 612 is provided on the driving slide 611. The bottom of the driving groove 612 is provided with a horizontal groove and one side of the driving groove 612 is connected to a vertical groove. An arc groove is used to transition between the horizontal groove and the vertical groove. The side end of the driving slide 611 is connected to a sliding block 613 in a horizontal sliding direction. The side end of the sliding block 613 is provided with a V-shaped groove 614. A second sliding member 615 is provided on one side of the driving slide 611. , the second sliding member 615 passes through the driving groove 612 and the V-shaped groove 614 and is slidably connected to the two. A second electric push rod 616 is horizontally provided on one side of the driving slide 611, and the output end of the second electric push rod 616 is connected to the side end of the sliding block 613. A connecting frame 617 is provided on the end of the second sliding member 615 away from the sliding block 613. A plurality of first springs 618 are horizontally provided on the inner side of the connecting frame 617. A leveling block 619 is provided on one side of the connecting frame 617. The side end of the leveling block 619 is connected to one end of the plurality of first springs 618. The upper and lower ends of the leveling block 619 are provided with inclined surfaces. The paving and compacting device 6 also includes a linkage compacting assembly 62, which includes a second toothed rod 621. Two sliding racks 622 are symmetrically arranged on both sides of the top of the conveying rack 21. Two sliding rods 623 are symmetrically arranged just above the conveyor belt 23. The two sliding rods 623 are respectively connected to the side ends of the two sliding racks 622 for sliding up and down connection. A compacting plate 624 is horizontally arranged at the bottom of the two sliding rods 623. One side of the compacting plate 624 is arranged in an arc shape. The size of the compacting plate 624 is consistent with the size of the inner side of the mold 4. Each sliding rack 622 is provided with a second Spring 625, and the side ends of each sliding rod 623 are respectively connected to the top of a second spring 625, and a mounting bracket 626 is provided on the top of the conveying frame 21, and the side end of the mounting bracket 626 is rotatably provided with a fifth gear 627, and the fifth gear 627 is engaged with the upper end of the second toothed rod 621. A connecting rod 628 is provided on the top of the two sliding rods 623, and a third toothed rod 629 is vertically provided at the other end of the connecting rod 628. The fifth gear 627 is located between the second toothed rod 621 and the third toothed rod 629, and the lower end of the third toothed rod 629 is engaged with the fifth gear 627.

[0019] In this embodiment, Figures 15 to 22 As shown, the vacuum hot pressing forming device 7 includes a vacuum hot pressing component 71, and the vacuum hot pressing component 71 includes a third electric push rod 711, the third electric push rod 711 is vertically arranged on the base plate 1 and is located at the end of the conveying frame 21 away from the loading barrel 512, the third electric push rod 711 is located directly above the conveyor belt 23 and the output end of the third electric push rod 711 is set downward, and the output end of the third electric push rod 711 is horizontally provided with a pressure plate 712, and two sealing plates 713 are vertically and symmetrically provided at both ends of the pressure plate 712. The bottom of the pressure plate 712 is horizontally connected to a hot pressing plate 714, and the hot pressing plate 714 is in size consistent with the inner side of the mold 4. Two fixing rods 715 are symmetrically provided on both sides of the pressure plate 712 away from the two sealing plates 713, and each fixing rod 715 is vertically provided at both ends of the bottom There is a fourth toothed rod 716, and a vacuum cover 717 is provided on the outer side of the hot pressing plate 714 and the suction pressing plate 712. The top of the vacuum cover 717 passes through the output end of the third electric push rod 711 and is slidably connected to it up and down, and a sealing gasket is provided at the sliding connection between the two. The tops of the two sealing plates 713 are respectively stopped at the two sides of the top of the vacuum cover 717. A number of air outlet holes 718 are equidistantly provided on both sides of the vacuum cover 717 from top to bottom, and the two sealing plates 713 are located directly above the two groups of air outlet holes 718, and the sides of the two sealing plates 713 away from each other are in contact with the two sides of the interior of the vacuum cover 717, and the contact surfaces of the sealing plates 713 and the vacuum cover 717 are provided with a sealing gasket. The bottom of the vacuum cover 717 is provided with an opening that is the same size as the opening of the mold 4, and the bottom of the vacuum cover 717 is provided with a sealing gasket. The vacuum hot pressing forming device 7 also includes a first shielding component 72 and a second shielding component 74. The first shielding component 72 and the second shielding component 74 have the same structure and are symmetrically arranged on both sides of the vacuum cover 717. The first shielding component 72 includes a fifth toothed rod 721. Receiving grooves 722 are provided on both sides of the vacuum cover 717. The fifth toothed rod 721 is horizontally arranged at the bottom of the receiving groove 722 on one side of the vacuum cover 717. Two rotating frames 723 are symmetrically provided on both sides of the fifth toothed rod 721. The upper and lower ends of each rotating frame 723 are symmetrically provided with a sixth gear 724 and a seventh gear 725. The sixth gear 724 is located directly above the fourth toothed rod 716 and the fourth toothed rod 716 is pre-engaged with the sixth gear 724. The fourth toothed rod 716 is located inside the receiving groove 722 and the fixed rod 715 passes through the side end of the receiving groove 722 and is slidably connected to it up and down. The sixth gear 724 The rotation connection between the seventh gear 725 and the rotating frame 723 is provided with a first pulley 726, and the two first pulleys 726 are provided with a first transmission belt 727. A sixth toothed rod 728 is horizontally provided on one side of the interior of the vacuum cover 717. The sixth toothed rod 728 passes through the side end of the accommodating groove 722 and is horizontally slidably connected thereto. A through groove is provided in the middle of the sixth toothed rod 728, and the two ends of the through groove are rotatably connected to the eighth gear 729 and the ninth gear 730. The rotation connection between the eighth gear 729 and the ninth gear 730 and the sixth toothed rod 728 is provided with a second pulley 731, and the two second pulleys 731 are provided with a second transmission belt 732. The bottom of the sixth toothed rod 728 is meshed with the seventh gear 725, and the top of the sixth toothed rod 728 is slidably connected to a shielding plate 733. The bottom of the shielding plate 733 is provided with a row of teeth and grooves, and the bottom of the shielding plate 733 is meshed with the ninth gear 730. The two shielding plates 733 in the first shielding assembly 72 and the second shielding assembly 74 are located on the same horizontal line with a gap therebetween.

[0020] The use method and advantages of the present invention: A tungsten-molybdenum alloy forming and pressing device, the working process is as follows: like Figures 1 to 22As shown, before the metal powder is pressed into shape, the metal powder needs to be loaded into the mold 4 first. First, a batch of metal powder is placed in the upper cylinder 512. Some of the metal powder falls into the metering cylinder 514 through the through openings on the bottom of the upper cylinder 512 and the sliding plate 513 and fills the lower cavity 521. Some of the metal powder is located between the two uppermost blades of the uniform fan blade 520 inside the distribution cavity 522. In the initial state, the discharge port at the bottom of the metering cylinder 514 is located on one side of the mold 4. At this time, the first electric push rod 516 is controlled to work and drive the sliding plate 513 to move along one side of the driving frame 511 to the other side, and then move back, thereby controlling the discharge port at the bottom of the metering cylinder 514 to reciprocate along one side of the top of the mold 4 to the other side. During the reciprocating motion, the side end of the sliding plate 513 closes the bottom of the upper cylinder 512 to prevent the metal powder from overflowing, and the bottom of the metering cylinder 514 is separated from the closing plate 515, so that the metal powder inside the metering cylinder 514 falls down and falls into The inside of the mold 4 is filled with metal powder layer by layer during the reciprocating movement, and as the metering cylinder 514 reciprocates, the fourth gear 528 contacts the first toothed rod 529 to drive it to rotate clockwise or counterclockwise. As the fourth gear 528 rotates, the third gear 527 is driven to slide on the arc slide 525 and mesh with the first gear 523 or the second gear 524, so that no matter whether the fourth gear 528 rotates clockwise or counterclockwise, the first gear 523 rotates clockwise, thereby driving the uniform fan blade 520 to rotate clockwise, thereby driving the metal powder inside the metering cylinder 514 to fall uniformly and quantitatively between the two adjacent blades of the uniform fan blade 520 in turn and fall into the mold 4 through the discharge port at the bottom of the metering cylinder 514, thereby achieving the goal of evenly and quantitatively laying the batch of metal powder inside the mold 4, without the need for manual loading, saving manpower, and ensuring that the metal powder is laid as flat and evenly as possible inside the mold 4, so as to improve the quality of the workpiece after pressing; After the metal powder is laid inside the mold 4, the driving motor 25 is controlled to drive the two conveying cylinders 22 to rotate, and then the conveyor belt 23 is driven to transmit, and the conveying base 3 and the mold 4 are controlled to be transported in the direction of the paving block 619 until one end of the mold 4 is located directly below the paving block 619. In the initial state, the second sliding member 615 at the side end of the connecting frame 617 is located at the lower end of the vertical groove on the driving groove 612, and then the output end of the second electric push rod 616 is controlled to contract, and then the paving block 619 is driven to drop slightly under the mutual cooperation of the driving groove 612 and the V-shaped groove 614. The bottom surface of the flattening block 619 is brought into contact with the top surface of the metal powder inside the mold 4, and then the output end of the second electric push rod 616 is controlled to continue to contract and extend, thereby driving the connecting frame 617 to move back and forth along the horizontal groove at the bottom of the driving groove 612. In this process, the flattening block 619 is controlled to move back and forth in the top surface area of ​​the metal powder, thereby achieving the flattening effect on the metal powder in the mold 4. After the flattening is completed, the flattening block 619 is controlled to be located at the bottom of the vertical groove and the output end of the second electric push rod 616 is controlled to continue to extend, thereby driving the connecting frame 617 to rise along the vertical groove. During the rising process, the second toothed rod 621 is driven to rise, and under the action of the fifth gear 627, the third toothed rod 629 is driven to descend, thereby driving the compacting plate 624 connected to the two sliding rods 623 to descend, and the compacting plate 624 is located directly above the mold 4. During the descending process, the side arc surface of the compacting plate 624 contacts the top inclined surface of the flattening block 619, squeezing the flattening block 619 to the inside of the connecting frame 617, and the first spring 618 contracts until the compacting plate 624 descends and disengages from the flattening block 619. When the connecting frame 617 rises to the highest point of the vertical slot, the compacting plate 624 Entering the mold 4, the metal powder inside the mold 4 is compacted to strengthen the tightness between the metal powders, so as to prevent the metal powders from being easily loosened by the rising air flow during the subsequent vacuuming, and to a certain extent reduce the possibility of the metal powders loosening and generating gaps, thereby achieving the effect of improving the quality of the workpiece after pressing; after the compaction operation is completed, the second electric push rod 616 controls the connecting frame 617 to descend and reset, and during the reset process, the compacting plate 624 is synchronously reset, squeezing the bottom inclined surface of the flattening block 619 so that the two can be offset from each other to complete the reset operation; When it is necessary to enter a vacuum state before pressing the metal powder, first, the conveyor belt 23 is controlled by the driving motor 25 to convey the mold 4 filled with the compacted metal powder and the conveying base 3 to the bottom of the vacuum cover 717, and then the output end of the third electric push rod 711 is controlled to extend. At this time, the tops of the two sealing plates 713 are abutted against the top of the inside of the vacuum cover 717, and then the vacuum cover 717 is driven down as the output end of the third electric push rod 711 extends until the bottom of the vacuum cover 717 is sleeved on the outside of the mold 4, the bottom of the vacuum cover 717 is abutted against the top of the conveying base 3 and is sealed by the vacuum cover 717, and the two shielding plates 733 are located directly above the mold 4 to seal the inside of the mold 4. The metal powder on the top is blocked, and then the third electric push rod 711 is controlled to continue to extend. At this time, the bottom of the vacuum cover 717 and the top of the conveying base 3 are restrained from each other, thereby driving the suction and pressure plate 712 to descend. At this time, the gas inside the vacuum cover 717 is gradually discharged through the air outlet holes 718 on both sides of the vacuum cover 717 as the suction and pressure plate 712 descends. In the process of discharge, the shielding plate 733 blocks the rising air flow, so it will not affect the metal powder inside the mold 4. As the suction and pressure plate 712 and the sealing plate 713 descend, the air outlet holes 718 on both sides of the vacuum cover 717 are blocked from top to bottom and sealed by the sealing gasket. When the hot pressing plate 714 is about to approach the inside of the mold 4, the air outlet The hole 718 is almost completely blocked, and the air inside the vacuum cover 717 is almost completely exhausted. At this time, the fourth toothed rod 716 contacts the sixth gear 724 and drives it to rotate, and under the transmission of the first pulley 726 and the first transmission belt 727, the seventh gear 725 is driven to rotate synchronously, thereby driving the sixth toothed rod 728 to slide in the direction of the fifth toothed rod 721, and during the sliding process, the eighth gear 729 on the sixth toothed rod 728 is driven to rotate, and then under the action of the second pulley 731 and the second transmission belt 732, the shielding plate 733 is driven to slide in the direction close to the fifth toothed rod 721. When the sealing plate 713 drops to completely close the air outlet hole 718, the vacuum cover is now closed. The air inside 717 is completely exhausted, and at this time the two baffles 733 move away from each other, and the two baffles 733 and the two sixth tooth groove rods 728 are all retracted to the inside of the accommodating grooves 722 on both sides, which will not affect the descent of the hot pressing plate 714. At this time, the hot pressing plate 714 continues to descend deep into the mold 4 to press the metal powder. After the hot pressing is completed, the third electric push rod 711 is controlled to extend and retract, and then the vacuum cover 717 is controlled to separate from the conveying base 3 and drive the baffle 733 to reset, thereby realizing the vacuum treatment operation before pressing the metal powder, which can effectively avoid the problem of loosening between the metal powder particles caused by the upward movement of the airflow caused by the vacuum, thereby improving the quality of the workpiece after molding.

[0021] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A tungsten-molybdenum alloy forming and pressing device, comprising a base plate (1), wherein the base plate (1) is arranged on the ground; characterized in that: The invention also includes a horizontal conveying device (2), wherein the horizontal conveying device (2) is arranged on one side of the top of the base plate (1), a conveying base (3) is provided on one side of the conveying end of the horizontal conveying device (2), a placement groove for accommodating the mold (4) is provided on the top of the conveying base (3), and the mold (4) is detachably placed on the top of the conveying base (3) through the placement groove, a uniform material spreading device (5) is provided on the top of the base plate (1), and the uniform material spreading device (5) is located on one side of the horizontal conveying device (2), a flattening and compacting device (6) is provided in the middle of the horizontal conveying device (2), and a vacuum hot pressing molding device (7) is provided on the side of the horizontal conveying device (2) away from the uniform material spreading device (5).

2. The tungsten-molybdenum alloy forming and pressing equipment according to claim 1, characterized in that: The horizontal conveying device (2) includes a conveying frame (21), two conveying cylinders (22) are symmetrically rotated at both ends of the conveying frame (21), a conveying belt (23) is sleeved on the two conveying cylinders (22), an inner support block (24) is provided on the inner side of the conveying belt (23), a driving motor (25) is provided on one side of the conveying frame (21), an output end of the driving motor (25) is connected to one of the conveying cylinders (22), a conveying base (3) is arranged on the conveying belt (23), the bottom of the conveying base (3) is connected to the top of the conveying belt (23), and both sides of the conveying base (3) are slidably connected to the two ends of the top of the conveying frame (21) in the horizontal direction.

3. The tungsten-molybdenum alloy forming and pressing equipment according to claim 2, characterized in that: The uniform spreading device (5) includes a quantitative component (51), and the quantitative component (51) includes a driving frame (511). The driving frame (511) is horizontally arranged on the top of the base plate (1) and is located directly above one side of the conveyor belt (23). A loading barrel (512) is vertically arranged on the top of one side of the driving frame (511). A sliding plate (513) is horizontally slidably connected to the driving frame (511). The sliding plate (513) is provided with a through hole. The bottom of the sliding plate (513) is provided with a A dosing cylinder (514) is provided, the top of the dosing cylinder (514) is open and communicated with the through hole on the sliding plate (513), the bottom of the loading cylinder (512) is open and communicated with the through hole on the sliding plate (513), a closing plate (515) is provided at one end of the bottom of the driving frame (511), a first electric push rod (516) is horizontally provided at the bottom of the driving frame (511), and the output end of the first electric push rod (516) is connected to the side end of the dosing cylinder (514).

4. The tungsten-molybdenum alloy forming and pressing equipment according to claim 3, characterized in that: The uniform spreading device (5) further comprises a uniform discharging assembly (52), wherein the uniform discharging assembly (52) comprises a uniform fan blade (520), a lowering cavity (521) and a distributing cavity (522) are respectively provided at the upper portion of the interior of the metering cylinder (514), the bottom of the lowering cavity (521) is arranged in a conical shape, the uniform fan blade (520) is rotatably arranged inside the distributing cavity (522), a first gear (523) is provided on the outside of the metering cylinder (514), the first gear (523) is connected to the uniform fan blade (520), a second gear (524) is meshed on the right side of the first gear (523), and the metering cylinder (514) is provided with a first gear (523). 4) is provided with an arc-shaped slide (525) at the side end, and a first sliding member (526) is provided on the arc-shaped slide (525) and is slidably connected thereto. The side end of the first sliding member (526) is rotatably connected to a third gear (527). The side end of the quantitative cylinder (514) is rotatably provided with a fourth gear (528). The third gear (527) is respectively engaged with the first gear (523) and the fourth gear (528). A first toothed rod (529) is horizontally provided on a side of the bottom of the driving frame (511) away from the first electric push rod (516), and the first toothed rod (529) is pre-engaged with the fourth gear (528).

5. The tungsten-molybdenum alloy forming and pressing equipment according to claim 4, characterized in that: The paving and compacting device (6) includes a driving paving assembly (61), and the driving paving assembly (61) includes a driving slide (611), the driving slide (611) is arranged on one side of the conveying frame (21), a driving groove (612) is provided on the driving slide (611), a side end of the driving slide (611) is connected to a sliding block (613) in a horizontal sliding direction, a side end of the sliding block (613) is provided with a V-shaped groove (614), and a second sliding member (615) is provided on one side of the driving slide (611), and the second sliding member (615) passes through The driving groove (612) is slidably connected to the V-shaped groove (614), a second electric push rod (616) is horizontally provided on one side of the driving slide (611), and the output end of the second electric push rod (616) is connected to the side end of the sliding block (613), a connecting frame (617) is provided on the end of the second sliding member (615) away from the sliding block (613), a plurality of first springs (618) are horizontally provided on the inner side of the connecting frame (617), a flattening block (619) is provided on one side of the connecting frame (617), and inclined surfaces are provided at the upper and lower ends of the flattening block (619).

6. The tungsten-molybdenum alloy forming and pressing equipment according to claim 5, characterized in that: The paving and compacting device (6) further includes a linkage compacting assembly (62), the linkage compacting assembly (62) including a second toothed rod (621), two sliding racks (622) symmetrically arranged on both sides of the top of the conveying rack (21), two sliding rods (623) symmetrically arranged just above the conveyor belt (23), the two sliding rods (623) respectively connected to the side ends of the two sliding racks (622) in an upward and downward sliding manner, a compacting plate (624) is horizontally arranged at the bottom of the two sliding rods (623), and a second spring (62) is provided on the inner side of each sliding rack (622). 5), a mounting frame (626) is provided on the top of the conveying frame (21), and a fifth gear (627) is rotatably provided on the side end of the mounting frame (626), and the fifth gear (627) is engaged with the upper end of the second toothed rod (621), and a connecting rod (628) is provided on the top of the two sliding rods (623), and a third toothed rod (629) is vertically provided at the other end of the connecting rod (628), and the fifth gear (627) is located between the second toothed rod (621) and the third toothed rod (629), and the lower end of the third toothed rod (629) is engaged with the fifth gear (627).

7. The tungsten-molybdenum alloy forming and pressing equipment according to claim 6, characterized in that: The vacuum hot pressing forming device (7) includes a vacuum hot pressing assembly (71), and the vacuum hot pressing assembly (71) includes a third electric push rod (711), the third electric push rod (711) is vertically arranged on the base plate (1) and is located at the end of the conveying frame (21) away from the loading barrel (512), the output end of the third electric push rod (711) is arranged downward, and a vacuum pressure plate (712) is horizontally arranged at the output end of the third electric push rod (711), two sealing plates (713) are vertically and symmetrically arranged at both ends of the vacuum pressure plate (712), the bottom of the vacuum pressure plate (712) is horizontally connected to the hot pressing plate (714), and the vacuum pressure plate (712) is away from the two sealing plates. Two fixing rods (715) are symmetrically provided on both sides of the sealing plate (713), and a fourth toothed rod (716) is vertically provided at both ends of the bottom of each fixing rod (715). A vacuum cover (717) is provided on the outer side of the hot pressing plate (714) and the suction pressing plate (712). The top of the vacuum cover (717) passes through the output end of the third electric push rod (711) and is connected to it in an up and down sliding manner. The tops of the two sealing plates (713) are respectively abutted against the two sides of the inner top of the vacuum cover (717). A number of air outlet holes (718) are equidistantly provided on both sides of the vacuum cover (717) from top to bottom, and the bottom of the vacuum cover (717) is provided with an opening that is the same size as the mold (4).

8. The tungsten-molybdenum alloy forming and pressing equipment according to claim 7, characterized in that: The vacuum hot pressing forming device (7) further comprises a first shielding component (72) and a second shielding component (74), the first shielding component (72) and the second shielding component (74) having the same structure and being symmetrically arranged on both sides of the interior of the vacuum cover (717), the first shielding component (72) comprising a fifth toothed groove rod (721), and receiving grooves (722) being provided on both sides of the interior of the vacuum cover (717), the fifth toothed groove rod (721) being horizontally arranged at the bottom of the interior of the receiving groove (722) on one side of the vacuum cover (717), and the fifth toothed groove rod (721) being horizontally arranged at the bottom of the interior of the receiving groove (722) on one side of the vacuum cover (717). Two rotating frames (723) are symmetrically provided on both sides of the toothed rod (721), and a sixth gear (724) and a seventh gear (725) are symmetrically provided at the upper and lower ends of each rotating frame (723), the sixth gear (724) is located directly below the fourth toothed rod (716), and the fourth toothed rod (716) and the sixth gear (724) are pre-engaged, and the rotation connection between the sixth gear (724) and the seventh gear (725) and the rotating frame (723) is provided with a first pulley (726), and the two first pulleys (726) are provided. ) is provided with a first transmission belt (727), a sixth toothed rod (728) is provided horizontally on one side of the interior of the vacuum cover (717), the sixth toothed rod (728) passes through the side end of the accommodating groove (722) and is horizontally slidably connected thereto, a through groove is provided in the middle of the sixth toothed rod (728), and the two ends of the through groove are rotatably connected to the eighth gear (729) and the ninth gear (730), and the rotation connection between the eighth gear (729) and the ninth gear (730) and the sixth toothed rod (728) is provided with a second pulley (73 1), a second transmission belt (732) is sleeved on the two second pulleys (731), the bottom of the sixth toothed rod (728) is meshed with the seventh gear (725), the top of the sixth toothed rod (728) is slidably connected to a shielding plate (733), the bottom of the shielding plate (733) is provided with a row of tooth grooves, and the bottom of the shielding plate (733) is meshed with the ninth gear (730); the two shielding plates (733) in the first shielding assembly (72) and the second shielding assembly (74) are on the same horizontal line and there is a gap between them.

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