A metal powder processing device for powder metallurgy

Abstract

The present invention relates to the technical field of screening processing, and specifically to a processing device for metal powder used in powder metallurgy, comprising a base, a vibration spring, a pedestal, a vibration motor and a vibration screen, wherein the base is arranged on the base, the vibration spring is arranged between the base and the pedestal, the vibration motor is arranged on the base, and there are multiple vibration screens. In this processing device for metal powder used in powder metallurgy, a cover is controlled by an unwinding mechanism in cooperation with an opening and closing mechanism. When a collecting bucket is placed on a placing slot, the cover is opened to connect a discharge pipe with the vibration screen, and when the collecting bucket collects to a certain extent, the cover is closed and feeding is stopped to avoid explosion in the collecting bucket. By means of a warning mechanism, when the collecting bucket collects to a certain extent and the collecting bucket stops feeding, the warning mechanism makes a sound to remind the staff, so as to facilitate the work to identify the collecting bucket that needs to be replaced.

Description

Technical Field

[0001] The invention relates to the technical field of screening processing, in particular to a processing device for metal powder used in powder metallurgy. Background Art

[0002] Metal powder refers to particles made by crushing metal materials. The application range of metal powder is very wide. It can be used as industrial raw materials in industrial production. For example, iron powder is needed in the production of welding rods. It can also be used to make functional coatings, such as wear-resistant materials, corrosion-resistant coatings and heat-resistant coatings. When producing metal powder, a screening device is required to perform multi-stage screening on powders of different sizes.

[0003] However, when the current metal powder screening device is in use, the metal powder put into the vibrating screen is not uniform, which results in that powder of some sizes has exploded when collected in the collecting bucket, while the rest of the collecting buckets have not been collected yet. This requires the equipment to be shut down to replace the collecting bucket. For this reason, we propose a metal powder processing device for powder metallurgy. Summary of the invention

[0004] A technical problem to be solved by the present application is: how to ensure that the device still operates normally when the collection barrel is replaced.

[0005] In order to solve the above technical problems, the embodiment of the present application provides a processing device for metal powder used in powder metallurgy, comprising a base, a vibration spring, a base, a vibration motor and a vibration screen, wherein the base is arranged on the base, the vibration spring is arranged between the base and the base, the vibration motor is arranged on the base, and the vibration screens are multiple and arranged on the base in sequence from top to bottom;

[0006] Also included are:

[0007] A placement slot, wherein the placement slot is in plurality and is arranged on the base;

[0008] A collecting bucket, wherein the collecting bucket is arranged in the placing groove, and as the amount of metal powder collected in the collecting bucket increases, the position of the collecting bucket decreases;

[0009] A cover plate, the cover plate being rotatably disposed in the vibrating screen;

[0010] An opening and closing mechanism, wherein the opening and closing mechanism is arranged on the vibrating screen and connected to the cover plate;

[0011] An unwinding mechanism, wherein the unwinding mechanism is arranged on the placement slot;

[0012] The steel wire rope is arranged between the opening and closing mechanism and the unwinding mechanism. The placement groove is pressed by the weight of the collecting barrel itself, thereby driving the unwinding mechanism to reel in the steel wire rope and cooperate with the opening and closing mechanism to open the cover. When the weight of the collecting barrel increases to a certain extent, the steel wire rope is unwound to close the cover.

[0013] In some embodiments, the opening and closing mechanism includes a pushing rod, which is slidably arranged on the side wall of the vibrating screen, a sliding rod is slidably arranged on the outer wall of the vibrating screen, a connecting rod is rotatably arranged between the pushing rod and the sliding rod, a sliding rail is arranged on the cover plate, one end of the pushing rod is slidably arranged on the sliding rail, and a reset spring is arranged between the pushing rod and the vibrating screen.

[0014] In some embodiments, a mounting seat is provided on the placement groove, a dust cover is provided on the mounting seat, an avoidance groove is opened on the placement groove, a placement plate is slidably provided in the placement groove, a reset spring three is provided between the placement plate and the placement groove, an extension plate is provided on the placement plate, the extension plate passes through the side wall of the placement groove through the avoidance groove, and a warning mechanism is provided on the mounting seat.

[0015] In some embodiments, the unwinding mechanism includes a cross bar 1, which is rotatably set on the mounting seat, the cross bar 1 penetrates the dust cover, a winding disk is set on the cross bar 1, and the winding disk is set on the outside of the dust cover, a gear 1 is rotatably set on the cross bar 1, a forward ratchet assembly 1 is set between the gear 1 and the cross bar 1, a rack 1 is set on the extension plate, the rack 1 is engaged with the gear 1, a ratchet is set on the cross bar 1, a pawl is rotatably set on the mounting seat, the pawl is movably connected to the ratchet, an extension rod is set on the pawl, and a trigger assembly is set on the mounting seat.

[0016] In some embodiments, the trigger assembly includes a sliding groove, the sliding groove is arranged on the mounting seat, the sliding groove is arranged below the avoidance groove, a slider is slidably arranged in the sliding groove, a return spring 2 is arranged between the slider and the sliding groove, a sliding rod 2 is slidably arranged on the mounting seat, one end of the sliding rod 2 is rotatably connected to the extension rod, and the other end of the sliding rod 2 is rotatably arranged with one end of a connecting rod 2, and the other end of the connecting rod 2 is rotatably connected to the slider, and the sliding groove is arranged below the extension plate.

[0017] In some embodiments, the warning mechanism includes a cross bar 2, which is rotatably arranged on a mounting seat, a clockwork spring is arranged between the cross bar 2 and the mounting seat, a gear 2 is rotatably arranged on the cross bar 2, a reverse ratchet assembly is arranged between the gear 2 and the cross bar 2, a rack 2 is arranged on the extension plate, the rack 2 is meshed with the gear 2, a connecting gear is arranged on the cross bar 2, a cross bar 3 is arranged on the mounting seat, a gear 5 is rotatably arranged on the cross bar 3, a forward ratchet assembly 2 is arranged between the gear 5 and the cross bar 3, the gear 5 is meshed with the connecting gear, a gear 4 is arranged on the cross bar 3, a cross bar 4 is rotatably arranged on the mounting seat, a striking rod is arranged on the cross bar 4, a shift rod is arranged on the striking rod, the shift rod is movably connected to the gear 4, an alarm is arranged on the mounting seat, and the alarm is movably connected to the striking rod.

[0018] In some embodiments, the second rack is longer than the first rack.

[0019] In some embodiments, the two ends of the steel wire rope are respectively arranged on the winding drum and the lower end of the sliding rod.

[0020] In some embodiments, a top cover is provided on the topmost vibration screen, a screen is provided at the lower end of the vibration screen, a discharge pipe is provided on the vibration screen, the discharge pipe is connected to the inside of the vibration screen, a hose is provided on the discharge pipe, and the hose is movably connected to the collection bucket.

[0021] The present invention has at least the following beneficial effects:

[0022] 1. Different from the prior art, in actual use, the unwinding mechanism is set to cooperate with the opening and closing mechanism to control the cover. When the collection bucket is placed on the placement slot, the cover is opened to connect the discharge pipe with the vibrating screen. When the collection bucket collects to a certain extent, the cover is closed and the feeding is stopped to avoid the explosion of the collection bucket.

[0023] 2. Different from the prior art, in actual use, through the setting of the warning mechanism, when the collection bucket collects to a certain extent and the collection bucket stops feeding, the warning mechanism makes a sound to remind the staff, making it easier to identify the collection bucket that needs to be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 Schematic diagram of split structure;

[0026] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0027] Figure 4 This is a schematic diagram of the connection structure of the collection barrel of the present invention;

[0028] Figure 5 For the present invention Figure 4 Schematic diagram of split structure;

[0029] Figure 6 For the present invention Figure 5 The enlarged structural diagram at B in the middle;

[0030] Figure 7 It is a structural schematic diagram of the unwinding mechanism of the present invention;

[0031] Figure 8 For the present invention Figure 7 The enlarged structural diagram at C in the middle;

[0032] Fig. 9 This is a schematic diagram of the cross-sectional structure of the placement groove of the present invention;

[0033] Fig.10 This is a schematic diagram of the structure of the placement plate of the present invention;

[0034] Fig.11 For the present invention Figure 1 Schematic diagram of the structure from another perspective.

[0035] In the figure: 1, base; 2, vibrating screen; 21, top cover; 22, screen; 23, discharge pipe; 24, hose; 3, cover plate; 4, opening and closing mechanism; 41, push rod; 42, reset spring 1; 43, slide rail; 44, slide rod 1; 45, connecting rod 1; 5, placement slot; 51, dust cover; 52, mounting seat; 53, avoidance slot; 6, unwinding mechanism; 61, cross bar 1; 611, positive ratchet assembly 1; 612, gear 1; 62, winding disk; 63, ratchet; 64, pawl; 641, extension rod; 65, trigger assembly; 651, sliding slot; 652, slider; 653, reset Spring 2; 654, sliding rod 2; 655, connecting rod 2; 66, rack 1; 7, warning mechanism; 71, cross bar 2; 711, clockwork spring; 712, reverse ratchet assembly; 713, gear 2; 714, connecting gear; 72, cross bar 3; 721, gear 4; 722, forward ratchet assembly 2; 723, gear 5; 73, cross bar 4; 731, striking rod; 732, lever; 74, alarm; 75, rack 2; 8, placement plate; 81, reset spring 3; 82, extension plate; 9, collection bucket; 10, wire rope; 11, vibration motor; 12, vibration spring; 13, base. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1

[0038] See also Figure 1-11 The present invention provides a technical solution: a processing device for metal powder used in powder metallurgy, comprising a base 1, a vibration spring 12, a base 13, a vibration motor 11 and a vibration screen 2, wherein the base 13 is arranged on the base 1, the vibration spring 12 is arranged between the base 13 and the base 1, the vibration motor 11 is arranged on the base 13, and there are multiple vibration screens 2, which are arranged on the base 13 in sequence from top to bottom;

[0039] Also included are:

[0040] A placement slot 5, which is provided in plurality on the base 1;

[0041] A collecting bucket 9, which is arranged in the placing groove 5. As the amount of metal powder collected in the collecting bucket 9 increases, the position of the collecting bucket 9 decreases;

[0042] A cover plate 3, the cover plate 3 is rotatably arranged in the vibrating screen 2;

[0043] An opening and closing mechanism 4, which is arranged on the vibrating screen 2 and connected to the cover plate 3;

[0044] An unwinding mechanism 6, which is arranged on the placement slot 5;

[0045] The wire rope 10 is arranged between the opening and closing mechanism 4 and the unwinding mechanism 6. The placement groove 5 is pressed by the weight of the collecting bucket 9, thereby driving the unwinding mechanism 6 to reel the wire rope 10 and cooperate with the opening and closing mechanism 4 to open the cover 3. When the weight of the collecting bucket 9 increases to a certain extent, the wire rope 10 is unwound to close the cover 3.

[0046] See also Figure 2-3 The opening and closing mechanism 4 includes a push rod 41, which is slidably arranged on the side wall of the vibrating screen 2. A sliding rod 44 is slidably arranged on the outer wall of the vibrating screen 2. A connecting rod 45 is rotatably arranged between the push rod 41 and the sliding rod 44. A slide rail 43 is arranged on the cover plate 3. One end of the push rod 41 is slidably arranged on the slide rail 43. A return spring 42 is arranged between the push rod 41 and the vibrating screen 2. When the sliding rod 44 moves downward, the push rod 41 is driven by the connecting rod 45 to push the cover plate 3, so that the cover plate 3 is opened.

[0047] See also Figure 9-10 A mounting seat 52 is provided on the placement groove 5, a dust cover 51 is provided on the mounting seat 52, an avoidance groove 53 is opened on the placement groove 5, a placement plate 8 is slidably provided in the placement groove 5, a reset spring 81 is provided between the placement plate 8 and the placement groove 5, an extension plate 82 is provided on the placement plate 8, and the extension plate 82 passes through the side wall of the placement groove 5 through the avoidance groove 53, and a warning mechanism 7 is provided on the mounting seat 52, which is slidably set in the placement groove 5 through the placement plate 8. When the weight of the collection bucket 9 on the placement plate 8 gradually increases, the height of the placement plate 8 gradually decreases.

[0048] See also Figure 5-7 The unwinding mechanism 6 includes a cross bar 61, which is rotatably arranged on the mounting seat 52, the cross bar 61 passes through the dust cover 51, a reel 62 is arranged on the cross bar 61, and the reel 62 is arranged outside the dust cover 51, a gear 612 is rotatably arranged on the cross bar 61, a positive ratchet assembly 611 is arranged between the gear 612 and the cross bar 61, a rack 66 is arranged on the extension plate 82, the rack 66 is engaged with the gear 612, a ratchet 63 is arranged on the cross bar 61, a pawl 64 is rotatably arranged on the mounting seat 52, the pawl 64 is movably connected to the ratchet 63, and an extension is arranged on the pawl 64. The long rod 641 and the mounting seat 52 are provided with a trigger assembly 65, and the rack 66 descends synchronously, so that the gear 612 rotates in the forward direction and then drives the cross bar 61 to rotate through the forward ratchet assembly 611, so that the wire rope 10 is wound through the winding disk 62, and the one-way rotation of the cross bar 61 is limited by the cooperation of the ratchet 63 and the pawl 64, thereby preventing the winding disk 62 from resetting immediately after the rack 66 and the gear 612 are disengaged. During the resetting process of the rack 66 through the forward ratchet assembly 611, the gear 612 idles on the cross bar 61 to prevent the winding disk 62 from reversing.

[0049] See also Figure 7-8The trigger assembly 65 includes a sliding groove 651, which is arranged on the mounting seat 52. The sliding groove 651 is arranged below the avoidance groove 53. A slider 652 is slidably arranged in the sliding groove 651. A return spring 653 is arranged between the slider 652 and the sliding groove 651. A sliding rod 654 is slidably arranged on the mounting seat 52. One end of the sliding rod 654 is rotatably connected to the extension rod 641. The other end of the sliding rod 654 is rotatably arranged with one end of a connecting rod 655. The other end of the connecting rod 655 is rotatably connected to the slider 652. The sliding groove 651 is arranged below the extension plate 82. When the extension plate 82 squeezes the slider 652, the slider 652 makes the sliding rod 654 move inward through the connecting rod 655 and pulls the extension rod 641, so that the ratchet 63 is free from the restriction of the pawl 64, and then the winding disk 62 is pulled by the wire rope 10 under the action of the return spring 42 to reset.

[0050] Please refer to 5-6. The warning mechanism 7 includes a second crossbar 71, which is rotatably arranged on the mounting seat 52. A spring spring 711 is arranged between the second crossbar 71 and the mounting seat 52. A second gear 713 is rotatably arranged on the second crossbar 71. A reverse ratchet assembly 712 is arranged between the second gear 713 and the second crossbar 71. A second rack 75 is arranged on the extension plate 82. The second rack 75 engages with the second gear 713. A connecting gear 714 is arranged on the second crossbar 71. A third crossbar 72 is arranged on the mounting seat 52. A fifth gear 723 is rotatably arranged on the third crossbar 72. A second forward ratchet assembly 722 is arranged between the fifth gear 723 and the third crossbar 72. The fifth gear 723 engages with the connecting gear 714. The gear four 721 is engaged, and the cross bar three 72 is provided with a gear four 721, and the cross bar four 73 is rotatably provided on the mounting seat 52. The cross bar four 73 is provided with a striking rod 731, and the striking rod 731 is provided with a lever 732. The lever 732 is movably connected with the gear four 721, and the mounting seat 52 is provided with an alarm 74, and the alarm 74 is movably connected with the striking rod 731. Through the reverse ratchet assembly 712, when the rack two 75 is lifted and reset, the gear two 713 rotates on the cross bar two 71, and the forward ratchet assembly two 722 makes the gear five 723 rotate on the cross bar three 72 when the rack two 75 descends, so that the gear four 721 will not make the alarm 74 ring during the collection process of the collection bucket 9.

[0051] See also Fig.10 , the rack 2 75 is longer than the rack 1 66, so that after the collecting bucket 9 is placed stably, the placing plate 8 is lowered for a distance, at which time the rack 1 66 is disengaged from the gear 1 612, and the opening and closing angle of the cover plate 3 no longer changes. At this time, the longer rack 2 75 still stores power for the clockwork spring 711 when the collecting bucket 9 collects.

[0052] See also Figure 3-6The two ends of the wire rope 10 are respectively arranged on the winding drum 62 and the lower end of the sliding rod 44. The wire rope 10 is arranged to make the winding drum 62 and the sliding rod 44 flexibly connected, so as to avoid the vibration of the vibrating screen 2 causing the influence between the winding drum 62 and the sliding rod 44 to be too large.

[0053] See also Figure 2 A top cover 21 is provided on the topmost vibration screen 2, a screen 22 is provided at the lower end of the vibration screen 2, a discharge pipe 23 is provided on the vibration screen 2, the discharge pipe 23 is connected with the inside of the vibration screen 2, a hose 24 is provided on the discharge pipe 23, and the hose 24 is movably connected with the collecting bucket 9. By inserting the hose 24 into the collecting bucket 9, when the height of the collecting bucket 9 changes, the hose 24 remains in the collecting bucket 9, and at the same time, the connection between the hose 24 and the collecting bucket 9 is facilitated.

[0054] The working process of the present invention is as follows:

[0055] Before use, insert the lower end of the hose 24 into the collecting bucket 9, and then place the collecting bucket 9 in the placing groove 5. Since the collecting bucket 9 has a certain weight, the collecting bucket 9 presses the placing plate 8, so that the placing plate 8 is lowered, and the rack 66 is synchronously lowered, so that the gear 612 rotates forward and then drives the cross bar 61 to rotate through the forward ratchet assembly 611, so that the wire rope 10 is wound through the winding disk 62, so that the sliding rod 44 moves downward. When the sliding rod 44 moves downward, the push rod 41 is driven by the connecting rod 45 to push the cover plate 3, so that the cover plate 3 is opened. At this time, the rack 66 is disengaged from the gear 612, but the pawl 64 limits the rotation direction of the ratchet 63, thereby avoiding the rack 66 and the gear After the first 612 is disengaged, the winding disk 62 is immediately reset. When the collecting buckets 9 are placed in the placement slots 5, the vibration motor 11 is started and the material is fed into the vibrating screen 2 through the top cover 21. As the material passes through the screen 22, the material is separated and discharged into the collecting bucket 9 through the discharge pipe 23. As the metal powder collected in the collecting bucket 9 increases, the position of the extension plate 82 decreases. When the extension plate 82 squeezes the slider 652, the slider 652 moves the sliding rod 654 inward through the connecting rod 655 and pulls the extension rod 641, so that the ratchet 63 is disengaged from the restriction of the pawl 64, and then the winding disk 62 is reset, so that the cover plate 3 is closed, the collection of the collecting bucket 9 is stopped, and the explosion of the collecting bucket 9 is avoided, without affecting the overall collection work of the vibrating screen 2.

[0056] When the collecting barrel 9 presses the placing plate 8, the placing plate 8 is lowered, and at the same time, the rack 2 75 is lowered to make the gear 2 713 rotate, and the gear 2 713 drives the cross bar 2 71 to rotate through the reverse ratchet assembly 712, and accumulates force on the spring spring 711. At this time, the gear 5 723 connected by the connecting gear is idling on the cross bar 3 72 through the forward ratchet assembly 2 722. As the metal powder collected in the collecting barrel 9 increases, the position of the extension plate 82 is lowered, and the rack 2 75 continues to accumulate force on the spring spring 711. When the extension plate 82 presses the trigger assembly 65, the rack 2 75 is disengaged from the gear 2 713. At this time, the cross bar 2 71 is reversed under the action of the released spring spring 711, and then the cross bar 3 72 is driven and rotated by the gear 5 723 under the action of the forward ratchet assembly 2 722. In this process, the gear 4 721 cooperates with the lever 732 to make the striking rod 731 repeatedly strike the alarm bell 74, thereby prompting the staff.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal powder processing device for powder metallurgy, comprising a base (1), a vibration spring (12), a base (13), a vibration motor (11) and a vibration screen (2), characterized in that: The base (13) is arranged on the base (1), the vibration spring (12) is arranged between the base (13) and the base (1), the vibration motor (11) is arranged on the base (13), and there are a plurality of vibration screens (2), which are arranged in sequence from top to bottom on the base (13); Also included are: A placement groove (5), wherein the placement groove (5) is in plurality and is arranged on the base (1); A collecting bucket (9), wherein the collecting bucket (9) is arranged in the placement groove (5), and as the amount of metal powder collected in the collecting bucket (9) increases, the position of the collecting bucket (9) decreases; A cover plate (3), wherein the cover plate (3) is rotatably arranged in the vibrating screen (2); An opening and closing mechanism (4), wherein the opening and closing mechanism (4) is arranged on the vibrating screen (2), and the opening and closing mechanism (4) is connected to the cover plate (3); An unwinding mechanism (6), wherein the unwinding mechanism (6) is arranged on the placement groove (5); The steel wire rope (10) is arranged between the opening and closing mechanism (4) and the unwinding mechanism (6). The placing groove (5) is pressed by the weight of the collecting bucket (9), thereby driving the unwinding mechanism (6) to reel the steel wire rope (10) and cooperate with the opening and closing mechanism (4) to open the cover plate (3). When the weight of the collecting bucket (9) increases to a certain extent, the steel wire rope (10) is unwound to close the cover plate (3).

2. A metal powder processing device for powder metallurgy according to claim 1, characterized in that: The opening and closing mechanism (4) comprises a push rod (41), the push rod (41) is slidably arranged on the side wall of the vibrating screen (2), a sliding rod (44) is slidably arranged on the outer wall of the vibrating screen (2), a connecting rod (45) is rotatably arranged between the push rod (41) and the sliding rod (44), a slide rail (43) is arranged on the cover plate (3), one end of the push rod (41) is slidably arranged on the slide rail (43), and a return spring (42) is arranged between the push rod (41) and the vibrating screen (2).

3. A metal powder processing device for powder metallurgy according to claim 2, characterized in that: The placement groove (5) is provided with a mounting seat (52), the mounting seat (52) is provided with a dust cover (51), the placement groove (5) is provided with an avoidance groove (53), a placement plate (8) is slidably arranged in the placement groove (5), a return spring (81) is arranged between the placement plate (8) and the placement groove (5), an extension plate (82) is arranged on the placement plate (8), the extension plate (82) passes through the side wall of the placement groove (5) through the avoidance groove (53), and a warning mechanism (7) is arranged on the mounting seat (52).

4. A metal powder processing device for powder metallurgy according to claim 3, characterized in that: The unwinding mechanism (6) comprises a cross bar (61) which is rotatably mounted on a mounting seat (52), the cross bar (61) passing through the dust cover (51), a winding disk (62) being mounted on the cross bar (61), the winding disk (62) being mounted outside the dust cover (51), a gear (612) being rotatably mounted on the cross bar (61), and a positive ratchet being mounted between the gear (612) and the cross bar (61). Component 1 (611), the extension plate (82) is provided with a rack 1 (66), the rack 1 (66) is engaged with a gear 1 (612), the cross bar 1 (61) is provided with a ratchet (63), the mounting seat (52) is rotatably provided with a pawl (64), the pawl (64) is movably connected to the ratchet (63), the pawl (64) is provided with an extension rod (641), and the mounting seat (52) is provided with a trigger component (65).

5. A metal powder processing device for powder metallurgy according to claim 4, characterized in that: The trigger assembly (65) comprises a sliding groove (651), wherein the sliding groove (651) is arranged on the mounting seat (52), wherein the sliding groove (651) is arranged below the avoidance groove (53), wherein a slider (652) is slidably arranged in the sliding groove (651), wherein a second return spring (653) is arranged between the slider (652) and the sliding groove (651), wherein a second sliding rod (654) is slidably arranged on the mounting seat (52), wherein one end of the second sliding rod (654) is rotatably connected to the extension rod (641), wherein one end of a second connecting rod (655) is rotatably arranged at the other end of the second sliding rod (654), wherein the other end of the second connecting rod (655) is rotatably connected to the slider (652), and wherein the sliding groove (651) is arranged below the extension plate (82).

6. A metal powder processing device for powder metallurgy according to claim 5, characterized in that: The warning mechanism (7) comprises a second crossbar (71), the second crossbar (71) being rotatably arranged on the mounting seat (52), a spring spring (711) being arranged between the second crossbar (71) and the mounting seat (52), a second gear (713) being rotatably arranged on the second crossbar (71), a reverse ratchet assembly (712) being arranged between the second gear (713) and the second crossbar (71), a second rack (75) being arranged on the extension plate (82), the second rack (75) being engaged with the second gear (713), a connecting gear (714) being arranged on the second crossbar (71), a third crossbar (72) being arranged on the mounting seat (52), and the third crossbar (72) being arranged on the mounting seat (52). ) is rotatably provided with a gear five (723), a positive ratchet assembly two (722) is provided between the gear five (723) and the cross bar three (72), the gear five (723) is engaged with the connecting gear (714), the cross bar three (72) is provided with a gear four (721), the mounting seat (52) is rotatably provided with a cross bar four (73), a striking rod (731) is provided on the cross bar four (73), a shifting rod (732) is provided on the striking rod (731), the shifting rod (732) is movably connected to the gear four (721), and an alarm bell (74) is provided on the mounting seat (52), and the alarm bell (74) is movably connected to the striking rod (731).

7. A metal powder processing device for powder metallurgy according to claim 6, characterized in that: The second rack (75) is longer than the first rack (66).

8. The metal powder processing device for powder metallurgy according to claim 7, characterized in that: The two ends of the steel wire rope (10) are respectively arranged on the winding drum (62) and the lower end of the sliding rod (44).

9. The metal powder processing device for powder metallurgy according to claim 8, characterized in that: A top cover (21) is arranged on the topmost vibration screen (2), a screen (22) is arranged at the lower end of the vibration screen (2), a discharge pipe (23) is arranged on the vibration screen (2), the discharge pipe (23) is communicated with the inside of the vibration screen (2), a hose (24) is arranged on the discharge pipe (23), and the hose (24) is movably connected to the collection bucket (9).

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