阅读说明：本技术 降低环境污染的废金属回收装置及方法 (Waste metal recovery device and method for reducing environmental pollution ) 是由 龙尚海 于 2021-08-06 设计创作，主要内容包括：本发明涉及废旧金属回收技术领域,且公开了降低环境污染的废金属回收装置,包括撕碎机、旋转组件和覆盖组件,所述撕碎机底端固定安装有支架,所述支架内部固定安装有出料框,所述撕碎机顶端固定安装有进料框,所述旋转组件活动安装在进料框内部,所述支架内部固定安装有电机,所述覆盖组件活动安装在进料框内部,所述旋转组件包括转盘,所述转盘右侧固定安装有转杆,所述转杆表面固定安装有转板,所述覆盖组件包括基座,所述基座内部转动连接有盖板,所述盖板底端固定安装有半齿轮,所述进料框内部嵌接有齿轮板,通过盖板和转板的贴合设置,并且在进料后转板和盖板可以自动闭合,将进料框底部给封闭住,达到防止废金属破碎时碎片飞溅的效果。(The invention relates to the technical field of waste metal recovery, and discloses a waste metal recovery device for reducing environmental pollution, which comprises a shredder, a rotating assembly and a covering assembly, wherein a bracket is fixedly arranged at the bottom end of the shredder, a discharging frame is fixedly arranged in the bracket, a feeding frame is fixedly arranged at the top end of the shredder, the rotating assembly is movably arranged in the feeding frame, a motor is fixedly arranged in the bracket, the covering assembly is movably arranged in the feeding frame, the rotating assembly comprises a turntable, a rotating rod is fixedly arranged at the right side of the turntable, a rotating plate is fixedly arranged on the surface of the rotating rod, the covering assembly comprises a base, a cover plate is rotatably connected in the base, a half gear is fixedly arranged at the bottom end of the cover plate, a gear plate is embedded in the feeding frame, the rotating plate and the cover plate can be automatically closed after feeding, the bottom of the feeding frame is sealed, so that the effect of preventing fragments from splashing when the waste metal is broken is achieved.)

1. Reduce environmental pollution's useless metal recycling device, including shredder (1), rotating assembly (2) and cover subassembly (3), its characterized in that: the bottom end of the shredder (1) is fixedly provided with a support (4), a discharging frame (5) is fixedly arranged in the support (4), a feeding frame (6) is fixedly arranged at the top end of the shredder (1), the rotating assembly (2) is movably arranged in the feeding frame (6), a motor (7) is fixedly arranged in the support (4), and the covering assembly (3) is movably arranged in the feeding frame (6);

the rotating assembly (2) comprises a rotating disc (21), a rotating rod (22) is fixedly mounted on the right side of the rotating disc (21), a rotating plate (23) is fixedly mounted on the surface of the rotating rod (22), an inserting shaft (24) is fixedly mounted inside one side, far away from the rotating rod (22), of the rotating plate (23), a rotating ring (25) is sleeved on the outer side of the inserting shaft (24), and a balancing weight (26) is fixedly mounted at the bottom end of the rotating ring (25);

the covering assembly (3) comprises a base (31), a cover plate (32) is connected to the base (31) in a rotating mode, a half gear (33) is fixedly installed at the bottom end of the cover plate (32), a gear plate (34) is embedded in the feeding frame (6), a moving plate (35) is fixedly installed at the bottom end of the gear, a positioning rod (36) is inserted in the moving plate (35) in a inserting mode, and a reset spring (37) is fixedly installed at the top end of the moving plate (35).

2. The apparatus for recycling scrap metal with reduced environmental pollution in accordance with claim 1, wherein: the rotary plates (23) are three in number and are uniformly arranged on the surface of the rotary rod (22) in a circumferential mode, the rotary plates (21) are two in number and are symmetrically arranged at the left end and the right end of the rotary rod (22) and fixedly connected with the rotary plates (23) through screws.

3. The apparatus for recycling scrap metal with reduced environmental pollution in accordance with claim 1, wherein: one side fixed mounting that bull stick (22) was kept away from in carousel (21) has the fixed axle, carousel (21) scarf joint is inside feeding frame (6), the other end fixed mounting of fixed axle has the bearing, the outer lane fixed mounting of bearing is inside feeding frame (6).

4. The apparatus for recycling scrap metal with reduced environmental pollution in accordance with claim 1, wherein: base (31) and apron (32) respectively have two, and the symmetry is installed on the left and right sides inner wall surface of feeding frame (6), apron (32) divide into left board and right board, the right side board comprises clamp plate and roof, it has the minor axis to peg graft between clamp plate and the roof, fixed mounting has the torsional spring between clamp plate and the roof, the fixed direction of torsional spring is for making clamp plate and roof parallel and level.

5. The apparatus for recycling scrap metal with reduced environmental pollution in accordance with claim 1, wherein: the utility model discloses a feed frame, including feeding frame (6), gear plate (34), cogwheel board (34) are total two, mesh with two half gear (33) respectively, the caulking groove has been seted up to feeding frame (6) inside, gear plate (34) scarf joint is inside the caulking groove, the total two of caulking groove, left gear plate (34) scarf joint is at the top of left side caulking groove, and gear plate (34) on right side scarf joint is in the bottom of right side caulking groove.

6. The apparatus for recycling scrap metal with reduced environmental pollution in accordance with claim 1, wherein: the movable plate (35) is embedded in the feeding frame (6), a movable groove is formed in the feeding frame (6), the number of the positioning rods (36) is two, the positioning rods are fixedly mounted in the movable groove, the reset spring (37) is fixedly mounted between the movable plate (35) and the inner wall of the movable groove, and the positioning rods (36) are inserted in the reset spring (37).

7. The apparatus for recycling scrap metals with reduced environmental pollution in accordance with claim 5, wherein: only one moving plate (35) is arranged and fixedly installed at the bottom end of the right side gear plate (34), and collision blocks are fixedly installed at the top end of the left side gear plate (34) and the bottom end of the right side gear plate (34).

8. The apparatus for recycling scrap metal with reduced environmental pollution in accordance with claim 1, wherein: the cover plate (32) is positioned above the lower rotating plate (23), the bottom side of one end, close to the rotating plate (23), of the cover plate (32) is attached to the upper surface of the lower rotating plate (23), and the feeding direction is the feeding direction from the right side of the top end of the feeding frame (6).

9. The method for using a scrap metal recycling apparatus for reducing environmental pollution in accordance with claim 1, wherein the steps of:

s1: waste metal is put into the feeding frame (6) from the right side of the top of the feeding frame (6), falls on the rotating plate (23) and the right plate, and pushes the rotating plate (23) and the right plate to rotate downwards;

s2: the rotating plate (23) rotates clockwise under the push of the waste metal, the rotating plate (23) on the left side pushes the left plate to rotate upwards, and the gear plate (34) is driven to move upwards through the half gear (33) while the right plate rotates downwards, so that the return spring (37) is compressed;

s3: when the scrap metal falls to the bottom of the feeding frame (6), the scrap metal is separated from the rotating plate (23) and the right plate, the rotating plate (23) is driven by the balancing weight (26) to continue rotating in order to keep balance, and the right plate is separated from the rotating plate (23) and begins to fall;

s4: when the rotating plate (23) is separated from the left plate, the left plate rotates downwards under the action of gravity, the left plate drives the gear plate (34) to move upwards through the half gear (33), and the gear on the left side moves to the top of the caulking groove and is fixed to prevent the left plate from continuously descending;

s5: the return spring (37) pushes the moving plate (35) to move downwards along the positioning rod (36) to drive the gear plate (34) to move, so that the half gear (33) drives the right plate to rotate upwards, and the right plate is rotated above the rotating plate (23);

s6: at this moment, the cover plates (32) on the left side and the right side are attached to the upper surfaces of the two rotating plates (23) below, and under the action of the balancing weight (26), the three rotating plates (23) keep one rotating plate (23) to vertically face upwards, the other two rotating plates (23) are in a symmetrical downward state, the bottom of the feeding frame (6) is sealed through the two rotating plates (23) below and the cover plates (32) on the left side and the right side, and when waste metal is prevented from being broken, fragments are splashed outwards to cause damage to users and surrounding equipment.

Technical Field

The invention relates to the technical field of waste metal recovery, in particular to a waste metal recovery device for reducing environmental pollution.

Background

The metal recovery means that useful substances separated from waste metals are physically or mechanically processed into recycled products, and the waste metals are recovered, so that on one hand, metals such as precious metals and the like which can cause environmental pollution can be recovered, the environmental pollution is avoided, on the other hand, the waste metals can be recycled, the mining amount of metal ores is reduced, the pollution caused by metal smelting is relatively reduced, and the production cost can be reduced while the purposes of protecting the environment, energy and the like are achieved.

When retrieving waste metal, the flow is for retrieving, disassemble, recycle usually, and it is the most important link wherein to disassemble the part to disassemble, when disassembling, can utilize the shredder to carry out the breakage with bold metal usually, with bold metal fragmentation one-tenth fritter, be convenient for smelt processing, but when carrying out the breakage to the metal, the inside hobbing cutter of shredder is when cutting up the metal, the piece of metal can outwards splash, and because the speed that splashes is high, and sharp on the edge, metal own hardness is also high, can cause the damage to equipment and operating personnel on every side, very easily cause the incident.

Aiming at the defects of the prior art, the invention provides the waste metal recovery device for reducing the environmental pollution, and the equipment has the advantage of preventing fragments from splashing and solves the problem that the fragments splash to hurt people by arranging the protective device capable of automatically closing in the feeding frame.

Disclosure of Invention

In order to achieve the purpose of preventing fragments from splashing, the invention provides the following technical scheme: the waste metal recovery device capable of reducing the environmental pollution comprises a shredder, a rotating assembly and a covering assembly, wherein a support is fixedly mounted at the bottom end of the shredder, a discharging frame is fixedly mounted in the support, a feeding frame is fixedly mounted at the top end of the shredder, the rotating assembly is movably mounted in the feeding frame, a motor is fixedly mounted in the support, and the covering assembly is movably mounted in the feeding frame; the rotating assembly comprises a rotating disc, a rotating rod is fixedly mounted on the right side of the rotating disc, a rotating plate is fixedly mounted on the surface of the rotating rod, an inserting shaft is fixedly mounted inside one side, away from the rotating rod, of the rotating plate, a rotating ring is sleeved on the outer side of the inserting shaft, and a balancing weight is fixedly mounted at the bottom end of the rotating ring; the covering assembly comprises a base, a covering plate is rotatably connected inside the base, a half gear is fixedly installed at the bottom end of the covering plate, a gear plate is embedded inside the feeding frame, a movable plate is fixedly installed at the bottom end of the gear, a positioning rod is inserted inside the movable plate, and a reset spring is fixedly installed at the top end of the movable plate.

As an optimization, the rotating plates are three in number and are uniformly arranged on the surface of the rotating rod in a circumferential mode, the rotating disks are two in number, the rotating disks are symmetrically arranged at the left end and the right end of the rotating rod and are fixedly connected with the rotating plates through screws, the rotating plates are enabled to start to rotate and finally be in symmetrical balance when being impacted by waste materials through the three rotating plates which are uniformly arranged, one rotating plate is vertically upward, and the other two rotating plates are symmetrically downward.

As optimization, one side fixed mounting that the carousel kept away from the bull stick has the fixed axle, the carousel scarf joint is inside feeding frame, the other end fixed mounting of fixed axle has the bearing, the outer lane fixed mounting of bearing makes the rotation that pivot and disc can be better inside feeding frame through the bearing, does benefit to the blanking.

As the optimization, base and apron respectively have two, and the symmetry is installed on the left and right sides inner wall surface of feeding frame, the apron divide into left board and right board, the right side board comprises clamp plate and roof, it has the minor axis to peg graft between clamp plate and the roof, fixed mounting has the torsional spring between clamp plate and the roof, the fixed direction of torsional spring is for making clamp plate and roof parallel and level, when throwing the material, changes the clockwise rotation of board to promote the clamp plate and rotate downwards, the torsional spring can drive the clamp plate and reset, thereby makes whole right board all be in the top of changeing the board.

As the optimization, the gear board is total two, respectively with two half gear engagement, the caulking groove has been seted up to feeding frame inside, the gear board scarf joint is inside the caulking groove, the caulking groove is total two, and left gear board scarf joint is at the top of left side caulking groove, and the gear board scarf joint on right side is in the bottom of right side caulking groove, and when the rotor plate clockwise turning, the left side board is upwards promoted by the rotor plate, and after rotor plate and left side board separated, the left side board is rotated downwards under the action of gravity, and the left side board passes through the half gear and drives gear board rebound, and left gear is to the top that removes the caulking groove this moment to being fixed, preventing that the left side board from continuing to descend, reaching the effect of fixed left board position.

As the optimization, the movable plate is rabbeted inside the feeding frame, the movable groove has been seted up inside the feeding frame, the locating lever totally two, and equal fixed mounting is inside the movable groove, reset spring fixed mounting is between movable plate and movable groove inner wall, the locating lever is pegged graft inside reset spring, receives waste material extrusion downwardly turned back when the right board, and the waste material falls into feeding frame bottom, and reset spring promotes the movable plate and moves down along the locating lever this moment, drives the gear board and removes to drive the right board through the half-gear and upwards rotate, make the right board rotatory to the top of commentaries on classics board, reach the purpose with feeding frame bottom confined.

As optimization, only one movable plate is arranged and fixedly installed at the bottom end of the right gear plate, and the collision blocks are fixedly installed at the top end of the left gear plate and the bottom end of the right gear plate.

As optimization, the cover plate is located above the lower rotating plate, the bottom side of one end, close to the rotating plate, of the cover plate is attached to the upper surface of the lower rotating plate, the feeding direction is the direction of feeding from the right side of the top end of the feeding frame, the bottom of the feeding frame is sealed through the matching of the cover plate and the rotating plate, and when waste metal is broken, fragments are prevented from splashing outwards to cause damage to users and surrounding equipment.

The use method of the waste metal recovery device for reducing the environmental pollution is characterized by comprising the following steps:

s1: waste metal is put into the feeding frame from the right side of the top of the feeding frame, falls on the rotating plate and the right plate and pushes the rotating plate and the right plate to rotate downwards;

s2: the rotating plate rotates clockwise under the push of the waste metal, the rotating plate on the left side pushes the left plate to rotate upwards, and the gear plate is driven to move upwards through the half gear while the right plate rotates downwards, so that the return spring is compressed;

s3: when the waste metal falls to the bottom of the feeding frame, the waste metal is separated from the rotating plate and the right plate, the rotating plate is driven by the balancing weight to continue rotating in order to keep balance, and the right plate is separated from the rotating plate and begins to fall;

s4: when the rotating plate is separated from the left plate, the left plate rotates downwards under the action of gravity, the left plate drives the gear plate to move upwards through the half gear, and the gear on the left side moves to the top of the caulking groove and is fixed to prevent the left plate from continuously descending;

s5: the return spring pushes the movable plate to move downwards along the positioning rod to drive the gear plate to move, so that the half gear drives the right plate to rotate upwards, and the right plate rotates to the position above the rotating plate;

s6: the apron of the left and right sides all laminates the upper surface of two commentaries on classics boards in below this moment, and simultaneously under the effect of balancing weight, three commentaries on classics board keeps one and changes the board perpendicularly upwards, and two other commentaries on classics board symmetry states down through the apron of two commentaries on classics boards in below and left and right sides, seals feeding frame bottom, and when preventing that useless metal is broken, the piece outwards splashes, leads to the damage of user of service and equipment on every side.

The invention has the beneficial effects that: when the waste metal is put into the feeding frame, the waste metal pushes the rotating plate and the right plate to rotate, the rotation of the rotating plate simultaneously pushes the left plate to rotate upwards, when the waste metal falls into the bottom of the feeding frame, the reset spring pushes the moving plate to move downwards along the locating rod to drive the gear plate to move, so that the right plate is driven by the half gear to rotate upwards to rotate above the rotating plate, meanwhile, after the rotating plate and the left plate are separated, the left plate rotates downwards under the action of gravity, the left plate drives the gear plate to move upwards through the half gear, at the moment, the left gear moves to the top of the caulking groove and is fixed to prevent the left plate from continuously descending, the effect of fixing the position of the left plate is achieved, at the moment, the cover plates on the left side and the right side are both attached to the upper surfaces of the two rotating plates below, at the same time, under the action of the balancing weight, three rotating plates keep one rotating plate vertically upwards, and the other two rotating plates are symmetrically downwards, through the apron of two commentaries on classics boards in below and left and right sides, seal feeding frame bottom, when preventing that the scrap metal is broken, the piece outwards splashes, leads to the damage of user of service and equipment on every side.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a perspective view of a feed frame according to the present invention;

FIG. 3 is a schematic view of a rotating assembly of the present invention;

FIG. 4 is a schematic view of a turntable according to the present invention;

FIG. 5 is a schematic view of a cover assembly of the present invention;

FIG. 6 is a schematic view of a gear plate of the present invention.

In the figure: 1. a shredder; 2. a rotating assembly; 21. a turntable; 22. a rotating rod; 23. rotating the plate; 24. inserting a shaft; 25. rotating the ring; 26. a balancing weight; 3. a cover assembly; 31. a base; 32. a cover plate; 33. a half gear; 34. a gear plate; 35. moving the plate; 36. positioning a rod; 37. a return spring; 4. a support; 5. discharging the material frame; 6. a feeding frame; 7. an electric motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the waste metal recovery device for reducing environmental pollution comprises a shredder 1, a rotating assembly 2 and a covering assembly 3, wherein a support 4 is fixedly installed at the bottom end of the shredder 1, a discharging frame 5 is fixedly installed inside the support 4, a feeding frame 6 is fixedly installed at the top end of the shredder 1, the rotating assembly 2 is movably installed inside the feeding frame 6, a motor 7 is fixedly installed inside the support 4, and the covering assembly 3 is movably installed inside the feeding frame 6; the rotating assembly 2 comprises a rotating disc 21, a rotating rod 22 is fixedly installed on the right side of the rotating disc 21, a rotating plate 23 is fixedly installed on the surface of the rotating rod 22, an inserting shaft 24 is fixedly installed inside one side, far away from the rotating rod 22, of the rotating plate 23, a rotating ring 25 is sleeved on the outer side of the inserting shaft 24, and a balancing weight 26 is fixedly installed at the bottom end of the rotating ring 25; the covering assembly 3 comprises a base 31, a covering plate 32 is rotatably connected inside the base 31, a half gear 33 is fixedly installed at the bottom end of the covering plate 32, a gear plate 34 is embedded inside the feeding frame 6, a moving plate 35 is fixedly installed at the bottom end of the gear, a positioning rod 36 is inserted inside the moving plate 35, and a reset spring 37 is fixedly installed at the top end of the moving plate 35.

Referring to fig. 2-4, there are three rotating plates 23 uniformly mounted on the surface of the rotating rod 22 in a circumferential manner, there are two rotating discs 21 symmetrically mounted at the left and right ends of the rotating rod 22 and fixedly connected to the rotating plates 23 by screws, and the three rotating plates 23 uniformly mounted enable the rotating plates 23 to start rotating and finally be in symmetrical balance when being impacted by waste materials, one rotating plate 23 is vertically upward, and the other two rotating plates 23 are symmetrically downward.

Referring to fig. 2-4, a fixed shaft is fixedly installed on one side of the rotary table 21 away from the rotating rod 22, the rotary table 21 is embedded inside the feeding frame 6, a bearing is fixedly installed at the other end of the fixed shaft, an outer ring of the bearing is fixedly installed inside the feeding frame 6, and the rotating shaft and the disc can rotate better through the bearing, so that blanking is facilitated.

Referring to fig. 2, 5 and 6, two bases 31 and two cover plates 32 are symmetrically installed on the inner wall surfaces of the left side and the right side of the feeding frame 6, the cover plate 32 is divided into a left plate and a right plate, the right plate is composed of a pressing plate and a top plate, a short shaft is inserted between the pressing plate and the top plate, a torsion spring is fixedly installed between the pressing plate and the top plate, the torsion spring is fixed in the direction that the pressing plate and the top plate are flush, when the material is fed, the rotating plate 23 rotates clockwise to push the pressing plate to rotate downwards, and the torsion spring can drive the pressing plate to reset, so that the whole right plate is located above the rotating plate 23.

Referring to fig. 2, 5 and 6, the number of the gear plates 34 is two, the two gear plates are respectively engaged with the two half gears 33, the feeding frame 6 is provided with a caulking groove, the gear plates 34 are embedded inside the caulking groove, the caulking groove has two positions, the left gear plate 34 is embedded at the top of the left caulking groove, the right gear plate 34 is embedded at the bottom of the right caulking groove, when the rotating plate 23 rotates clockwise, the left plate is pushed upwards by the rotating plate 23, after the rotating plate 23 is separated from the left plate, the left plate rotates downwards under the action of gravity, the left plate drives the gear plates 34 to move upwards through the half gears 33, at the moment, the left gear moves to the top of the caulking groove and is fixed, the left plate is prevented from continuously descending, and the effect of fixing the position of the left plate is achieved.

Referring to fig. 2, 5 and 6, the moving plate 35 is embedded in the feeding frame 6, a movable groove is formed in the feeding frame 6, two positioning rods 36 are fixedly installed in the movable groove, a return spring 37 is fixedly installed between the moving plate 35 and the inner wall of the movable groove, the positioning rods 36 are inserted in the return spring 37, when the right plate is extruded by waste materials and rotates downwards, the waste materials fall into the bottom of the feeding frame 6, at the moment, the return spring 37 pushes the moving plate 35 to move downwards along the positioning rods 36 to drive the gear plate 34 to move, so that the right plate is driven to rotate upwards through the half gear 33, the right plate is rotated to the position above the rotating plate 23, and the purpose of sealing the bottom of the feeding frame 6 is achieved.

Referring to fig. 2, 5 and 6, only one moving plate 35 is provided and is fixedly installed at the bottom end of the right gear plate 34, and the collision mass is fixedly installed at both the top end of the left gear plate 34 and the bottom end of the right gear plate 34.

Referring to fig. 2, 5 and 6, the cover plate 32 is located above the lower rotating plate 23, and the bottom side of one end of the cover plate 32 close to the rotating plate 23 is attached to the upper surface of the lower rotating plate 23, the feeding direction is from the top right side of the feeding frame 6, and the bottom of the feeding frame 6 is sealed by the cooperation of the cover plate 32 and the rotating plate 23, so as to prevent the fragments from splashing outwards when the waste metal is crushed, which causes damage to users and surrounding equipment.

The use method of the waste metal recovery device for reducing the environmental pollution is characterized by comprising the following steps:

s1: waste metal is thrown into the feeding frame 6 from the right side of the top of the feeding frame 6, falls on the rotating plate 23 and the right plate, and pushes the rotating plate 23 and the right plate to rotate downwards;

s2: the rotating plate 23 rotates clockwise under the push of the waste metal, the rotating plate 23 on the left side pushes the left plate to rotate upwards, and the gear plate 34 is driven to move upwards through the half gear 33 while the right plate rotates downwards, so that the return spring 37 is compressed;

s3: when the scrap metal falls to the bottom of the feeding frame 6, the scrap metal is separated from the rotating plate 23 and the right plate, the rotating plate 23 is driven by the balancing weight 26 to continue rotating in order to keep balance, and the right plate is separated from the rotating plate 23 and begins to fall;

s4: when the rotating plate 23 is separated from the left plate, the left plate rotates downwards under the action of gravity, the left plate drives the gear plate 34 to move upwards through the half gear 33, and the gear on the left side moves to the top of the caulking groove and is fixed to prevent the left plate from continuously descending;

s5: the return spring 37 pushes the moving plate 35 to move downwards along the positioning rod 36, so as to drive the gear plate 34 to move, so that the half gear 33 drives the right plate to rotate upwards, and the right plate is rotated above the rotating plate 23;

s6: the apron 32 of the left and right sides all laminates the upper surface of two commentaries on classics boards 23 in below this moment, and simultaneously under the effect of balancing weight 26, three commentaries on classics board 23 keeps a commentaries on classics board 23 perpendicularly upwards, and two other commentaries on classics board 23 symmetry states down, through the apron 32 of two commentaries on classics boards 23 in below and left and right sides, seals feeding frame 6 bottom, when preventing that the useless metal is broken, the piece outwards splashes, leads to the damage of user and equipment on every side.

To sum up, when the scrap metal is thrown into the feeding frame 6, the scrap metal pushes the rotating plate 23 and the right plate to rotate, and the rotation of the rotating plate 23 pushes the left plate to rotate upwards, when the scrap metal falls into the bottom of the feeding frame 6, the return spring 37 pushes the moving plate 35 to move downwards along the positioning rod 36, so as to drive the gear plate 34 to move, so as to drive the right plate to rotate upwards through the half gear 33, so that the right plate rotates to the upper side of the rotating plate 23, and when the rotating plate 23 is separated from the left plate, the left plate rotates downwards under the action of gravity, the left plate drives the gear plate 34 to move upwards through the half gear 33, at the moment, the left gear moves to the top of the caulking groove and is fixed, so as to prevent the left plate from further descending, and achieve the effect of fixing the position of the left plate, at the moment, the cover plates 32 on the left side and the right side are both attached to the upper surfaces of the two rotating plates 23 below, and at the same time, under the action of the counterweight 26, the three rotating plates 23 keep one rotating plate 23 vertically upwards, the other two rotating plates 23 are symmetrically in a downward state, the bottom of the feeding frame 6 is sealed through the two rotating plates 23 below and the cover plates 32 on the left side and the right side, and accordingly, when waste metal is broken, fragments are prevented from splashing outwards to cause damage to users and surrounding equipment.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.