Molybdenum alloy plug lifting device

Abstract

The invention discloses a molybdenum alloy top head hoisting device, and relates to the technical field of molybdenum alloy top head machining, the molybdenum alloy top head hoisting device comprises two guide rails, universal wheels are arranged on the inner sides of the two guide rails, bottom blocks are fixedly connected to the upper sides of the universal wheels, vertical plates are fixedly connected to the upper sides of the bottom blocks, and top plates are fixedly connected to the upper sides of the vertical plates; a first sliding groove is formed in the outer side of the top plate, a first sliding block is slidably connected to the inner side of the first sliding groove, a stabilizing unit is arranged on the lower side of the first sliding block and comprises a bottom plate, the bottom plate is fixedly connected to the lower side of the first sliding block, and two mounting blocks are fixedly connected to the lower side of the bottom plate. According to the molybdenum alloy plug hoisting device, through the arrangement of the control roller, the steel cable, the lifting plate, the two-way screw and the clamping plates, the clamping plates on the two sides can conveniently limit a charging basket and then hoist the charging basket, through the bottom rod, the cover plate and the multiple limiting holes, the multiple limiting holes can conveniently limit multiple plugs, and the plugs are prevented from being damaged during hoisting.

Description

Technical Field

[0001] This invention relates to the field of molybdenum alloy mandrel processing technology, specifically to a molybdenum alloy mandrel lifting device. Background Technology

[0002] Molybdenum alloy mandrels are functional components made from molybdenum as the base material, with added alloying elements such as titanium, zirconium, and carbon, through powder metallurgy or smelting processes. In the metallurgical industry, they are core piercing tools used in the production of seamless steel pipes made of high-alloy materials such as stainless steel and high-temperature alloy steel.

[0003] A search revealed a Chinese patent with application number "CN202110528513.X", which specifically describes a molybdenum alloy lifting device. The device includes two symmetrically arranged longitudinal drive components, with a transverse drive component connected between the inner sides of the two longitudinal drive components. A movable seat is connected to the outside of the transverse drive component. The transverse drive component includes connecting seats symmetrically connected to both ends of the longitudinal drive components. A lead screw is connected between the inner walls of the two connecting seats. The movable seat is connected to the outside of the lead screw, and a first gear is connected to the outside of the lead screw near the inner side of one of the connecting seats.

[0004] When processing molybdenum alloy mandrels, multiple mandrels need to be placed in a material basket. Due to the weight of the molybdenum alloy mandrels, a lifting device is required to lift the mandrels from the basket to facilitate their movement to the processing position. Existing lifting devices limit the basket by using hooks, but during the lifting process, multiple molybdenum alloy mandrels collide with each other, causing damage and affecting the production quality of the mandrels.

[0005] Therefore, the present invention proposes a molybdenum alloy top lifting device to solve the above-mentioned problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a molybdenum alloy mandrel lifting device, which solves the problem of easy damage to the molybdenum alloy mandrel during lifting.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A molybdenum alloy lifting device includes two guide rails. Universal wheels are installed on the inner sides of the two guide rails. A base block is fixedly connected to the upper side of each universal wheel. A vertical plate is fixedly connected to the upper side of the base block. A top plate is fixedly connected to the upper side of the vertical plate. A sliding groove is formed on the outer side of the top plate. A slider is slidably connected to the inner side of the sliding groove. A stabilizing unit is provided below the slider. The stabilizing unit includes a base plate, which is fixedly connected to the lower side of the slider. Two mounting blocks are fixedly connected to the lower side of the base plate. A control rod is rotatably connected between the two mounting blocks. A control roller is fixedly connected to the middle of the control rod. A steel cable is wound around the outer side of the control roller. A lifting block is fixedly connected to the lower end of the steel cable. A lifting plate is fixedly connected to the lower side of the lifting block. A stabilizing component is provided below the lifting plate for more stable lifting.

[0008] Preferably, an electric push rod for driving the slider is fixedly connected to the inner side of the slide groove, a side plate is fixedly connected to the outer side of the bottom block, two fixed blocks are fixedly connected to the outer side of the side plate, a rotating rod is rotatably connected between the two fixed blocks, a gear is fixedly connected to the middle of the rotating rod, a toothed plate meshing with the gear is fixedly connected to the outer side of the guide rail, a motor for driving the rotating rod is fixedly connected to the outer side of the fixed block, and a second motor is fixedly connected to the outer side of the mounting block.

[0009] Preferably, the stabilizing component includes two sets of sliding grooves, which are opened on the outer side of the lifting plate. Slide plates are slidably connected to the inner side of each set of sliding grooves. Clamping plates are fixedly connected to the lower side of each slide plate on both sides. Two top blocks are fixedly connected to the upper side of the lifting plate. Movable blocks are fixedly connected to the upper side of each slide plate on both sides. A bidirectional screw is rotatably connected between the two top blocks.

[0010] Preferably, a motor is fixedly connected to the outer side of the top block, the two ends of the bidirectional screw are provided with opposite threads, the two ends of the bidirectional screw are respectively threaded to two moving blocks, and the output end of the motor is fixedly connected to the outer end of the bidirectional screw.

[0011] Preferably, a bottom rod is fixedly connected to the lower side of the lifting plate, and a cover plate is fixedly connected to the lower end of the bottom rod. A plurality of limiting holes are opened on the lower side of the cover plate, and an annular airbag is fixedly connected to the inner side of the limiting holes.

[0012] Preferably, a connecting pipe is fixedly connected to the outer side of the annular airbag, a delivery pipe is fixedly connected to the outer end of the connecting pipe, an air box is fixedly connected to the upper side of the cover plate, a distribution pipe is fixedly connected between the air box and the delivery pipe, a piston plate is provided on the inner side of the air box, and a push plate is fixedly connected between the piston plate and the clamping plate.

[0013] Preferably, a stabilizing plate is fixedly connected to the outer side of the clamping plate, a sliding groove four is provided on the outer side of the stabilizing plate, a slider three is slidably connected to the inner side of the sliding groove four, a movable plate is fixedly connected to the lower side of the slider three, a movable rod is provided on the outer side of the movable plate, a support plate is fixedly connected to the lower end of the movable rod, the movable rod is slidably connected to the movable plate, and a spring two is fixedly connected between the support plate and the movable plate.

[0014] Preferably, a sliding rod is provided on the outer side of the sliding plate, a contact plate is fixedly connected to the upper end of the sliding rod, a U-shaped plate is fixedly connected to the lower end of the sliding rod, a spring is fixedly connected between the sliding rod and the sliding plate, a fixing plate is fixedly connected to the outer side of the U-shaped plate, a sliding groove is provided on the outer side of the fixing plate, a slider is slidably connected to the inner side of the sliding groove, U-shaped blocks are fixedly connected to both the front and rear sides of the slider, an installation rod is fixedly connected to the outer side of the U-shaped blocks, inclined frames are fixedly connected to both the front and rear sides of the clamping plate, the installation rod is located inside the inclined frames, a connecting plate is fixedly connected to the upper side of the slider, a connecting rod is fixedly connected to the upper side of the connecting plate, and the upper end of the connecting rod passes through the upper side of the slider.

[0015] Preferably, the connecting rod is slidably connected to the slider, the support plate is L-shaped, the sliding rod is slidably connected to the slide plate, a side block is fixedly connected to the outer side of the mounting block, a stop plate is fixedly connected to the lower side of the side block, and the contact plate is located below the stop plate.

[0016] This invention provides a molybdenum alloy lifting device for a top end. Compared with the prior art, it has the following advantages: (1) The molybdenum alloy top lifting device is equipped with control rollers, steel cables, lifting plates, bidirectional screws and clamps, which facilitates the clamps on both sides to limit the material basket and lift it. The bottom rod, cover plate and multiple limit holes facilitate the multiple limit holes to limit multiple tops and avoid damage to the tops during lifting.

[0017] (2) The molybdenum alloy top lifting device is equipped with a cover plate, annular air bladder, conveying pipe, air box, piston plate and push plate. When the cover plate limits the top, the annular air bladder in the limiting hole expands to further protect the top.

[0018] (3) The molybdenum alloy top lifting device is equipped with a support plate, a stabilizing plate, an inclined frame, and a sliding rod. When lifting the material basket, the support plate is controlled to move closer to the material basket, so that the support plate can support the bottom of the material basket and prevent the material basket from falling off. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 for Figure 1Enlarged view of A in the middle; Figure 3 This is a top-view perspective view of the present invention. Figure 4 This is a partial three-dimensional structural diagram of the present invention; Figure 5 for Figure 4 Enlarged view of point B in the middle; Figure 6 This is a three-dimensional structural diagram of the stabilizing unit in this invention; Figure 7 for Figure 6 Enlarged view of point C in the middle; Figure 8 for Figure 6 Enlarged view of point D in the middle; Figure 9 This is a three-dimensional structural diagram of the cover plate in this invention; Figure 10 This is a three-dimensional structural view of the cover plate in this invention from another perspective.

[0020] In the diagram: 1. Top plate; 2. Vertical plate; 3. Slide 1; 4. Slider 1; 5. Stabilizing unit; 6. Base block; 7. Caster wheel; 8. Side plate; 9. Guide rail; 10. Gear plate; 11. Fixing block; 12. Rotating rod; 13. Gear; 14. Motor 1; 15. Electric push rod; 51. Base plate; 52. Mounting block; 53. Control rod; 54. Control roller; 55. Steel cable; 56. Motor 2; 57. Side block; 58. Support plate; 59. Lifting block; 510. Lifting plate; 511. Slide 2; 512. Slide plate; 513. Clamping plate; 514. Moving block; 515. Top block; 516. Double-acting screw; 517. Motor 3; 518. Slide rod 519. Contact plate; 520. U-shaped plate; 521. Spring 1; 522. Fixing plate; 523. Slide groove 3; 524. Slider 2; 525. U-shaped block; 526. Mounting rod; 527. Slanted frame; 528. Connecting rod; 529. Stabilizing plate; 530. Slide groove 4; 531. Slider 3; 532. Connecting plate; 533. Moving plate; 534. Moving rod; 535. Spring 2; 536. Support plate; 537. Bottom rod; 538. Cover plate; 539. Limiting hole; 540. Annular airbag; 541. Connecting pipe; 542. Conveying pipe; 543. Distribution pipe; 544. Air box; 545. Piston plate; 546. Push plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This invention provides the following technical solutions: Example 1 Please see Figure 1 - Figure 4 , Figure 9 , Figure 10 A molybdenum alloy lifting device includes two guide rails 9, with casters 7 on the inner sides of the two guide rails 9. A base block 6 is fixedly connected to the upper side of the casters 7, and a vertical plate 2 is fixedly connected to the upper side of the base block 6. A top plate 1 is fixedly connected to the upper side of the vertical plate 2. A groove 3 is formed on the outer side of the top plate 1, and a slider 4 is slidably connected to the inner side of the groove 3. A stabilizing unit 5 is provided on the lower side of the slider 4. The stabilizing unit 5 includes a base plate 51, which is fixedly connected to the lower side of the slider 4. Two mounting blocks 52 are fixedly connected to the lower side of the base plate 51, and a control mechanism is rotatably connected between the two mounting blocks 52. A control roller 54 is fixedly connected to the middle of the control rod 53. A steel cable 55 is wound around the outside of the control roller 54. A lifting block 59 is fixedly connected to the lower end of the steel cable 55. A lifting plate 510 is fixedly connected to the lower side of the lifting block 59. A stabilizing component is provided on the lower side of the lifting plate 510. The stabilizing component is used to make the lifting more stable. Multiple molybdenum alloy tops are placed on the material basket. When the material basket needs to be lifted, the material basket is first lifted by the stabilizing unit 5. Then, the electric push rod 15 is controlled to drive the slider 4 to move left and right. The slider 4 drives the material basket to move left and right, which facilitates the positioning of the material basket.

[0023] An electric push rod 15, which drives the slider 4, is fixedly connected to the inner side of the chute 3. A side plate 8 is fixedly connected to the outer side of the bottom block 6. Two fixed blocks 11 are fixedly connected to the outer side of the side plate 8. A rotating rod 12 is rotatably connected between the two fixed blocks 11. A gear 13 is fixedly connected to the middle of the rotating rod 12. A toothed plate 10, which meshes with the gear 13, is fixedly connected to the outer side of the guide rail 9. A motor 14, which drives the rotating rod 12, is fixedly connected to the outer side of the fixed block 11. A motor 2 56 is fixedly connected to the outer side of the mounting block 52. When lifting, the motor 14 is started, and the motor 14 drives the rotating rod 12 to rotate. The rotating rod 12 drives the gear 13 to rotate. Since the gear 13 meshes with the toothed plate 10, it controls the top plate 1 to move back and forth repeatedly, which facilitates the top plate 1 to control the movement of the material frame.

[0024] The stabilizing assembly includes two sets of sliding grooves 511, which are located on the outer side of the lifting plate 510. Slide plates 512 are slidably connected to the inner side of each sliding groove 511. Clamping plates 513 are fixedly connected to the lower side of each slide plate 512. Two top blocks 515 are fixedly connected to the upper side of the lifting plate 510. Moving blocks 514 are fixedly connected to the upper side of each slide plate 512. A bidirectional screw 516 is rotatably connected between the two top blocks 515. A motor 517 is fixedly connected to the outer side of each top block 515. The two ends of the bidirectional screw 516 have opposite threads, and both ends are threaded to the two moving blocks 514 respectively. The output end of the motor 517 is fixedly connected to the outer end of the bidirectional screw 516. In the fixed connection, when lifting the material basket, first start motor three 517. Motor three 517 drives the bidirectional screw 516 to rotate, and the bidirectional screw 516 drives the moving block 514 to move. The moving blocks 514 on both sides move closer to each other, and the moving blocks 514 drive the sliding plate 512 to move. The sliding plate 512 drives the clamping plate 513 to move, and the clamping plates 513 on both sides move closer to each other, so that the clamping plates 513 limit the two sides of the material basket, which facilitates the subsequent lifting of the material basket. Then start motor two 56. Motor two 56 drives the control rod 53 to rotate, and the control rod 53 drives the control roller 54 to rotate. Under the action of steel cable 55, the lifting plate 510 is controlled to move up and down. The lifting plate 510 drives the material basket to move up and down, which facilitates the lifting function.

[0025] A base rod 537 is fixedly connected to the lower side of the lifting plate 510. A cover plate 538 is fixedly connected to the lower end of the base rod 537. Multiple limiting holes 539 are opened on the lower side of the cover plate 538. An annular airbag 540 is fixedly connected to the inner side of the limiting holes 539. A connecting pipe 541 is fixedly connected to the outer side of the annular airbag 540. A conveying pipe 542 is fixedly connected to the outer end of the connecting pipe 541. An air box 544 is fixedly connected to the upper side of the cover plate 538. A distribution pipe 543 is fixedly connected between the air box 544 and the conveying pipe 542. A piston plate 545 is provided inside the air box 544. A push plate 546 is fixedly connected between the piston plate 545 and the clamping plate 513. This system is used to lift the top head on the material basket. During hoisting, the lifting plate 510 is lowered, which in turn lowers the cover plate 538, allowing the top head to insert into the inner side of the limiting hole 539, preventing the top heads from colliding and being damaged. When the clamping plate 513 limits the material basket, the clamping plate 513 drives the push plate 546 to move, and the push plate 546 drives the piston plate 545 to move. The inner side of the air box 544 is filled with gas, which is pushed out by the piston plate 545. The gas is then introduced into multiple annular air bags 540 through the distribution pipe 543, the conveying pipe 542, and the connecting pipe 541, causing the annular air bags 540 to inflate. The annular air bags 540 are then pressed tightly against the top head, further limiting and protecting the top head.

[0026] Example 2

[0027] Based on Example 1, such as Figure 5 - Figure 8As shown, a stabilizing plate 529 is fixedly connected to the outer side of the clamping plate 513. A sliding groove 530 is provided on the outer side of the stabilizing plate 529. A slider 531 is slidably connected to the inner side of the sliding groove 530. A movable plate 533 is fixedly connected to the lower side of the slider 531. A movable rod 534 is provided on the outer side of the movable plate 533. A support plate 536 is fixedly connected to the lower end of the movable rod 534. The movable rod 534 is slidably connected to the movable plate 533. A spring 535 is fixedly connected between the support plate 536 and the movable plate 533. A sliding rod 518 is provided on the outer side of the sliding plate 512. A contact plate 519 is fixedly connected to the upper end of the sliding rod 518. A U-shaped plate 520 is fixedly connected to the lower end of the sliding rod 518. The sliding rod 518 is fixedly connected to the sliding plate 512. A spring 521 is connected to the outer side of a U-shaped plate 520, and a fixing plate 522 is fixedly connected to the outer side of the fixing plate 522. A sliding groove 523 is provided on the outer side of the fixing plate 522, and a slider 524 is slidably connected to the inner side of the sliding groove 523. U-shaped blocks 525 are fixedly connected to both the front and rear sides of the slider 524, and mounting rods 526 are fixedly connected to the outer sides of the U-shaped blocks 525. Inclined frames 527 are fixedly connected to both the front and rear sides of the clamping plate 513, and mounting rods 526 are located inside the inclined frames 527. A connecting plate 532 is fixedly connected to the upper side of the slider 531, and a connecting rod 528 is fixedly connected to the upper side of the connecting plate 532. The upper end of the connecting rod 528 passes through the upper side of the slider 524, and the connecting rod 528 is slidably connected to the slider 524. A support plate 536 is also provided. The structure is L-shaped, with slide bar 518 slidably connected to slide plate 512. Side block 57 is fixedly connected to the outer side of mounting block 52, and abutment plate 58 is fixedly connected to the lower side of side block 57. Contact plate 519 is located below abutment plate 58. When clamping plate 513 limits the material basket, controlling the basket to rise causes lifting plate 510 to drive contact plate 519 to rise. When contact plate 519 contacts abutment plate 58, lifting plate 510 continues to rise, causing contact plate 519 to drive slide bar 518 to fall. Slide bar 518 drives U-shaped plate 520 to fall, and U-shaped plate 520 drives mounting rod 526 on U-shaped block 525 to fall. Under the action of inclined frame 527, mounting rod 526 moves towards the side closer to the material basket while falling. Rod 526 drives U-shaped block 525 to move, U-shaped block 525 drives slider 2 524 to move, slider 2 524, under the action of connecting rod 528, causes connecting rod 528 to drive connecting plate 532 to move, connecting plate 532 drives slider 3 531 to move, slider 3 531 drives moving plate 533 to move, moving plate 533 drives lower support plate 536 to move, so that the lower part of support plate 536 moves to the bottom of the material basket to support the bottom of the material basket and prevent the material basket from slipping down. When lifting plate 510 descends, lifting plate 510 drives support plate 536 to descend, so that support plate 536 contacts the ground. Under the action of moving rod 534 and spring 2 535, support plate 536 will not obstruct the descent of lifting plate 510.

[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0029] During operation, motor 517 is first started to drive the bidirectional screw 516 to rotate. Under the action of moving block 514 and sliding plate 512, the clamping plates 513 on both sides clamp the material basket. At this time, motor 56 is started to drive the control roller 54 to rotate, controlling the material basket to rise. During lifting, the lifting plate 510 drives the cover plate 538 to descend, and the top head is inserted into the inner side of the limiting hole 539 to facilitate the limiting of the top head. When the clamping plate 513 limits the material basket, the clamping plate 513 drives the piston plate 545 on the push plate 546 to move. Under the action of air box 544, conveying pipe 542, and connecting pipe 541, the annular air bag 540 is inflated. Further limit the top head to prevent damage during lifting. During lifting, the lifting plate 510 drives the contact plate 519 to rise. When the contact plate 519 contacts the abutment plate 58, the lifting plate 510 continues to rise, and the contact plate 519 descends. The contact plate 519 drives the U-shaped plate 520 to descend. Under the action of the fixed plate 522, the mounting rod 526 and the inclined frame 527, the slider 2 524 moves. Under the action of the connecting rod 528, the connecting plate 532, the slider 3 531 and the moving plate 533, the support plate 536 is controlled to move. The support plates 536 on both sides support the bottom of the material basket to prevent the material basket from falling off during lifting.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molybdenum alloy top lifting device, comprising two guide rails (9), characterized in that: Two guide rails (9) are provided with casters (7) on their inner sides. A base block (6) is fixedly connected to the upper side of the casters (7). A vertical plate (2) is fixedly connected to the upper side of the base block (6). A top plate (1) is fixedly connected to the upper side of the vertical plate (2). A sliding groove (3) is provided on the outer side of the top plate (1). A slider (4) is slidably connected to the inner side of the sliding groove (3). A stabilizing unit (5) is provided on the lower side of the slider (4). The stabilizing unit (5) includes a base plate (51). The base plate (51) is fixedly connected to the slider (4). On the lower side of the base plate (51), two mounting blocks (52) are fixedly connected to the lower side. A control rod (53) is rotatably connected between the two mounting blocks (52). A control roller (54) is fixedly connected to the middle of the control rod (53). A steel cable (55) is wound around the outer side of the control roller (54). A lifting block (59) is fixedly connected to the lower end of the steel cable (55). A lifting plate (510) is fixedly connected to the lower side of the lifting block (59). A stabilizing component is provided on the lower side of the lifting plate (510). The stabilizing component is used to make the lifting more stable.

2. The molybdenum alloy top lifting device according to claim 1, characterized in that: An electric push rod (15) for driving the slider (4) to move is fixedly connected to the inner side of the slide groove (3). A side plate (8) is fixedly connected to the outer side of the bottom block (6). Two fixed blocks (11) are fixedly connected to the outer side of the side plate (8). A rotating rod (12) is rotatably connected between the two fixed blocks (11). A gear (13) is fixedly connected to the middle of the rotating rod (12). A toothed plate (10) that meshes with the gear (13) is fixedly connected to the outer side of the guide rail (9). A motor (14) for driving the rotating rod (12) to rotate is fixedly connected to the outer side of the fixed block (11). A motor (56) is fixedly connected to the outer side of the mounting block (52).

3. The molybdenum alloy top lifting device according to claim 1, characterized in that: The stabilizing component includes two sets of slide grooves (511), which are located on the outer side of the lifting plate (510). Slide plates (512) are slidably connected to the inner side of each of the two sets of slide grooves (511). Clamping plates (513) are fixedly connected to the lower side of each slide plate (512). Two top blocks (515) are fixedly connected to the upper side of the lifting plate (510). Moving blocks (514) are fixedly connected to the upper side of each slide plate (512). A bidirectional screw (516) is rotatably connected between the two top blocks (515).

4. The molybdenum alloy top lifting device according to claim 3, characterized in that: The top block (515) is fixedly connected to the outer side of the motor three (517), and the two ends of the bidirectional screw (516) are provided with opposite threads. The two ends of the bidirectional screw (516) are respectively threaded to two moving blocks (514), and the output end of the motor three (517) is fixedly connected to the outer end of the bidirectional screw (516).

5. The molybdenum alloy top lifting device according to claim 4, characterized in that: A bottom rod (537) is fixedly connected to the lower side of the lifting plate (510), and a cover plate (538) is fixedly connected to the lower end of the bottom rod (537). A plurality of limiting holes (539) are opened on the lower side of the cover plate (538), and an annular airbag (540) is fixedly connected to the inner side of the limiting hole (539).

6. The molybdenum alloy top lifting device according to claim 5, characterized in that: A connecting pipe (541) is fixedly connected to the outer side of the annular airbag (540), and a delivery pipe (542) is fixedly connected to the outer end of the connecting pipe (541). An air box (544) is fixedly connected to the upper side of the cover plate (538). A distribution pipe (543) is fixedly connected between the air box (544) and the delivery pipe (542). A piston plate (545) is provided on the inner side of the air box (544), and a push plate (546) is fixedly connected between the piston plate (545) and the clamping plate (513).

7. The molybdenum alloy top lifting device according to claim 3, characterized in that: A stabilizing plate (529) is fixedly connected to the outer side of the clamping plate (513). A sliding groove (530) is provided on the outer side of the stabilizing plate (529). A slider (531) is slidably connected to the inner side of the sliding groove (530). A moving plate (533) is fixedly connected to the lower side of the slider (531). A moving rod (534) is provided on the outer side of the moving plate (533). A support plate (536) is fixedly connected to the lower end of the moving rod (534). The moving rod (534) is slidably connected to the moving plate (533). A spring (535) is fixedly connected between the support plate (536) and the moving plate (533).

8. The molybdenum alloy top lifting device according to claim 7, characterized in that: A slide rod (518) is provided on the outer side of the slide plate (512). A contact plate (519) is fixedly connected to the upper end of the slide rod (518), and a U-shaped plate (520) is fixedly connected to the lower end of the slide rod (518). A spring (521) is fixedly connected between the slide rod (518) and the slide plate (512). A fixing plate (522) is fixedly connected to the outer side of the U-shaped plate (520). A sliding groove (523) is provided on the outer side of the fixing plate (522), and a slider (524) is slidably connected to the inner side of the sliding groove (523). U-shaped blocks (525) are fixedly connected to both the front and rear sides of the second slider (524). An installation rod (526) is fixedly connected to the outer side of the U-shaped block (525). An inclined frame (527) is fixedly connected to both the front and rear sides of the clamping plate (513). The installation rod (526) is located inside the inclined frame (527). A connecting plate (532) is fixedly connected to the upper side of the third slider (531). A connecting rod (528) is fixedly connected to the upper side of the connecting plate (532). The upper end of the connecting rod (528) passes through the upper side of the second slider (524).

9. A molybdenum alloy top lifting device according to claim 8, characterized in that: The connecting rod (528) is slidably connected to the second slider (524), the support plate (536) is L-shaped, the sliding rod (518) is slidably connected to the sliding plate (512), the outer side of the mounting block (52) is fixedly connected to the side block (57), the lower side of the side block (57) is fixedly connected to the abutment plate (58), and the contact plate (519) is located below the abutment plate (58).

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