CN110193399B

CN110193399B - Building concrete block waste recycling device

Info

Publication number: CN110193399B
Application number: CN201910442645.3A
Authority: CN
Inventors: 胡杨; 胥立; 杨江平; 郭为群; 高宏伟; 王永强; 马翔; 吕文文; 张富强; 王小龙; 王利强; 何建军; 胥斌; 魏小强
Original assignee: Baoji Second Construction Engineering Co ltd
Current assignee: Baoji Second Construction Group Co ltd
Priority date: 2019-05-25
Filing date: 2019-05-25
Publication date: 2021-07-23
Anticipated expiration: 2039-05-25
Also published as: CN110193399A

Abstract

The invention relates to the field of building concrete block treatment equipment, in particular to a building concrete block waste recycling device, which comprises a conveying channel, a conveying device, a crushing device, a screening device, a carrying device, a discharging conveying belt and a collecting vehicle, wherein the conveying channel, the screening device and the discharging conveying belt are arranged along a straight line, the conveying channel is of a hollow structure, a feeding hopper communicated with the inside of the conveying channel is arranged at the top of the conveying channel, the conveying device is arranged on one end part of the conveying channel, a mounting shell is arranged on the conveying channel and beside the feeding hopper, the crushing device is arranged on the mounting shell, four first supporting legs which are distributed in a rectangular shape are arranged at the bottom of the conveying channel, the carrying device is arranged right above the screening device, and the collecting vehicle is arranged beside the discharging conveying belt. The invention not only can crush the building concrete blocks, but also can automatically recycle and utilize the metal in the building concrete blocks.

Description

Building concrete block waste recycling device

Technical Field

The invention relates to building concrete block treatment equipment, in particular to a building concrete block waste recycling device.

Background

The building concrete block refers to waste concrete blocks, broken bricks, metal, wood, glass and other wastes generated in the process of construction, laying or dismantling and repairing of various buildings, structures, pipe networks and the like of construction units or personal teams. At present, the building concrete blocks in China still contain a lot of recyclable materials, such as metal waste materials in the building concrete blocks. The traditional mode of retrieving is that the manual work is retrieved through a plurality of artifical hands instrument, and artifical recovery mode is not only inefficiency, but also has certain danger.

Disclosure of Invention

The invention aims to solve the technical problem of providing a recycling device for building concrete block waste.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a building concrete block waste material recycling device, includes that the material of carrying says, conveyor, breaker, screening device, handling device, unloading conveyer belt and collection vehicle, the material of carrying says, screens device and the setting of unloading conveyer belt along a straight line, the material of carrying says and is hollow structure, the top of material of carrying says is equipped with the feeding hopper rather than inside intercommunication, conveyor installs on the one end tip of material of carrying saying, the side that lies in the feeding hopper on the material of carrying says is equipped with the installation casing, breaker installs on the installation casing, the bottom of material of carrying says is equipped with four first supporting legs that are the rectangle and distributes, handling device lies in directly over the screening device, the collection parking stall is in the side of unloading conveyer belt.

Further, conveyor includes conveyor motor, first gear, second gear, carries the piece and has the transmission shaft of external screw thread, carry piece slidable mounting in carrying the material to say, carry the material to say and be equipped with the extension board that is the level setting, be equipped with on the extension board and rotate the seat, the transmission shaft rotates and installs on rotating the seat, carry the back of piece seted up with transmission shaft screw-thread fit's screw hole, first gear is installed on the one end tip of transmission shaft, conveyor motor installs on the extension board, the second gear is installed on conveyor motor's output to first gear and second gear meshing, the bottom of extension board is equipped with the second supporting legs that two symmetries set up.

Further, breaker includes first broken subassembly, the broken subassembly of second and drive assembly, first broken subassembly sets up in the installation casing with the broken subassembly symmetry of second, be equipped with the first mounting panel that is the L type on the outer wall of installation casing, be equipped with the second mounting panel that is the level setting on the first mounting panel, drive assembly installs on the second mounting panel.

Further, first broken subassembly is the same with the broken subassembly of second structure and all includes broken clamp plate and drive rack, drive rack is vertical installation on broken clamp plate, be equipped with on the installation casing with drive rack sliding fit's slide and the perforation that supplies drive rack to pass, the top of broken clamp plate is equipped with two guide bars that are the symmetry setting, be equipped with on the installation casing two with two guide bar one-to-one sliding fit's guide holder, the installation casing is located and is equipped with the mount pad between two drive racks, rotates on the mount pad and installs the third gear to third gear and two drive rack meshes.

Further, drive assembly includes driving motor, actuating lever and is annular drive frame, driving motor installs on the second mounting panel to driving motor's output runs through first mounting panel, the one end of actuating lever is installed on driving motor's output, drive frame is horizontal installation on first broken subassembly's drive rack outer wall, the other end of actuating lever be equipped with sliding frame sliding fit's traveller.

Further, the screening device comprises a screening hopper, a screening plate, a supporting plate, two vibrating motors and four balance supporting components, wherein the four balance supporting components are arranged on the supporting plate in a rectangular mode, four U-shaped plates in one-to-one correspondence with the four balance supporting components are arranged on the outer wall of the screening hopper, the tops of the four balance supporting components are connected to the four U-shaped plates respectively, the screening plate is arranged in the screening hopper, a plurality of sieve holes are formed in the screening plate, and the vibrating motors are symmetrically arranged on the outer wall of the screening hopper.

Further, balanced supporting component includes balancing piece, balancing post and balanced spring, the balancing piece is installed in the backup pad, the balancing post is vertical the installation on the balancing piece, balanced spring overlaps and establishes on the balancing post, balanced spring's top is connected on the U template that corresponds.

Further, handling device includes portal frame, transport electric cylinder, lift cylinder and electro-magnet, the top below at the portal frame is installed to the transport electric cylinder, be equipped with the third mounting panel that is the U type on the slip table of transport electric cylinder, the lift cylinder is vertical and installs on the third mounting panel, the electro-magnet is installed on the output of lift cylinder.

Compared with the prior art, the invention has the beneficial effects that:

firstly, the invention can not only convey the building concrete blocks entering the conveying material channel through the conveying device, but also control the entering amount of the feeding hopper entering the conveying hopper, the building concrete blocks entering the conveying material channel can be crushed one by one through the crushing device, metal cannot be crushed by the crushing device due to the self characteristic of the metal, the crushed building concrete blocks can enter the screening device to screen out the metal, other building concrete blocks fall onto the blanking conveying belt to be conveyed away, and meanwhile, the conveying device works to convey the metal in the crushing device to the collecting vehicle to finish metal recovery.

Secondly, the conveying motor drives the second gear to rotate, the second gear drives the first gear and the transmission shaft to synchronously rotate, the transmission shaft is matched with the threaded hole to enable the conveying block to move in the conveying channel, the movement of the conveying block can push the building concrete blocks in the conveying channel and control the opening size of a discharge port of the discharging hopper, and therefore the quantity of the building concrete blocks entering the conveying channel is controlled.

Thirdly, the driving rod and the sliding column are driven to rotate by the driving motor, the sliding column drives the driving frame to move up and down, the driving frame drives the driving rack of the first crushing assembly to move up and down in the corresponding sliding seat, the driving rack of the first crushing assembly drives the driving rack of the second crushing assembly to move up and down through the third gear, and the movement directions of the two driving racks are opposite all the time, so that the two crushing pressing plates can circularly move up and down, and the building concrete blocks in the conveying channel can be automatically crushed.

Fourthly, the screening hopper is driven by the two vibrating motors to shake, building concrete blocks in the screening hopper start to fall onto a discharging conveying belt through screen holes of the screening plate due to shaking, metal cannot be crushed, the metal remains on the screening plate, then the carrying electric cylinder and the lifting air cylinder are matched to drive the electromagnet to move in two axial directions, the electromagnet works to absorb the metal on the screening plate, and therefore the metal in the building concrete blocks is automatically recycled.

Drawings

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

FIG. 2 is a first partial schematic view of the present invention;

FIG. 3 is a second partial schematic view of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a partial cross-sectional view of the present invention;

FIG. 6 is a third schematic view of a partial structure according to the present invention;

FIG. 7 is an enlarged view at B in FIG. 6;

fig. 8 is a partial structural diagram of the present invention.

The reference numbers in the figures are: the device comprises a conveying material channel 1, a mounting shell 1a, a first mounting plate 1a1, a second mounting plate 1a2, a sliding seat 1a3, a guide seat 1a4, a third gear 1a5, a first supporting foot 1b, an extension plate 1c, a rotating seat 1c1, a second supporting foot 1c2, a conveying device 2, a conveying motor 2a, a first gear 2b, a second gear 2c, a conveying block 2d, a transmission shaft 2e, a crushing device 3, a first crushing assembly 3a, a crushing pressing plate 3a1, a driving rack 3a2, a guide rod 3a3, a second crushing assembly 3b, a driving assembly 3c, a driving motor 3c1, a driving rod 3c2, a driving frame 3c3, a screening device 4, a screening hopper 4a, a U-shaped plate 4a1, a screening plate 4b, a screening hole 4b1, a supporting plate 4c, a vibrating motor 4d, a balancing supporting assembly 584 e, a balancing column 1, a balancing column and a spring conveying device 5965, portal frame 5a, transport electric cylinder 5b, third mounting panel 5b1, lift cylinder 5c, electro-magnet 5d, unloading conveyer belt 6, collection vehicle 7, feeding hopper 8.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Referring to fig. 1 to 8, a recycling device for building concrete block waste comprises a conveying material channel 1, a conveying device 2, a crushing device 3, a screening device 4, a carrying device 5, a blanking conveyor belt 6 and a collecting vehicle 7, the conveying channel 1, the screening device 4 and the blanking conveying belt 6 are arranged along a straight line, the conveying channel 1 is of a hollow structure, the top of the conveying material channel 1 is provided with a feeding hopper 8 communicated with the inside of the conveying material channel, the conveying device 2 is arranged on one end part of the conveying material channel 1, the side of the feeding hopper 8 on the conveying channel 1 is provided with a mounting shell 1a, the crushing device 3 is mounted on the mounting shell 1a, the bottom of carrying material way 1 is equipped with four first supporting legs 1b that are the rectangle and distribute, handling device 5 is located screening device 4 directly over, collection vehicle 7 is located the side of unloading conveyer belt 6.

The conveying device 2 comprises a conveying motor 2a, a first gear 2b, a second gear 2c, a conveying block 2d and a transmission shaft 2e with an external thread, the conveying block 2d is arranged in the conveying material channel 1 in a sliding way, the conveying material channel 1 is provided with an extension plate 1c which is horizontally arranged, the extension plate 1c is provided with a rotating seat 1c1, the transmission shaft 2e is rotatably arranged on the rotating seat 1c1, the back of the conveying block 2d is provided with a threaded hole matched with the thread of the transmission shaft 2e, the first gear 2b is arranged on one end part of the transmission shaft 2e, the conveying motor 2a is arranged on an extension plate 1c, the second gear 2c is arranged on the output end of the conveying motor 2a, the first gear 2b is meshed with the second gear 2c, and the bottom of the extension plate 1c is provided with two symmetrically-arranged second supporting feet 1c 2; conveying motor 2a drive second gear 2c rotates, second gear 2c drives first gear 2b and rotates, first gear 2b drives transmission shaft 2e and carries out synchronous rotation, transmission shaft 2e lets transport block 2d can remove in carrying material way 1 with the cooperation of screw hole, transport block 2d not only can the building concrete block in propelling movement carrying material way 1, can also control the volume that feeding hopper 8 got into the building concrete block in carrying material way 1.

The crushing device 3 comprises a first crushing assembly 3a, a second crushing assembly 3b and a driving assembly 3c, the first crushing assembly 3a and the second crushing assembly 3b are symmetrically arranged in a mounting shell 1a, an L-shaped first mounting plate 1a1 is arranged on the outer wall of the mounting shell 1a, a horizontally arranged second mounting plate 1a2 is arranged on the first mounting plate 1a1, and the driving assembly 3c is arranged on the second mounting plate 1a 2; drive assembly 3c can drive first broken subassembly 3a and reciprocate, and first broken subassembly 3a can drive second broken subassembly 3b and carry out reverse movement all the time, and first broken subassembly 3a and second broken subassembly 3b can carry out automatic breakage with the building concrete block of carrying in the material way 1.

The first crushing assembly 3a and the second crushing assembly 3b have the same structure and respectively comprise a crushing pressure plate 3a1 and a driving rack 3a2, the driving rack 3a2 is vertically installed on the crushing pressure plate 3a1, a sliding seat 1a3 in sliding fit with the driving rack 3a2 and a through hole for the driving rack 3a2 to pass through are arranged on the installation shell 1a, two guide rods 3a3 symmetrically arranged are arranged at the top of the crushing pressure plate 3a1, two guide seats 1a4 in one-to-one sliding fit with the two guide rods 3a3 are arranged on the installation shell 1a, an installation seat is arranged between the two driving racks 3a2 on the installation seat, a third gear 1a5 is rotatably installed on the installation seat, and the third gear 1a5 is meshed with the two driving racks 3a 2; the driving assembly 3c drives the driving rack 3a2 of the first crushing assembly 3a to move up and down, the driving rack 3a2 drives the driving rack 3a2 of the second crushing assembly 3b to move reversely through the third gear 1a5, so that the two crushing pressing plates 3a1 move reversely and circularly, the crushing pressing plates 3a1 can crush the building concrete blocks in the conveying material channel 1, and the balance of the crushing pressing plates 3a1 can be ensured by the matching of the guide rods 3a3 and the guide seats 1a 4.

The driving assembly 3c comprises a driving motor 3c1, a driving rod 3c2 and a driving frame 3c3 in an annular shape, the driving motor 3c1 is mounted on the second mounting plate 1a2, the output end of the driving motor 3c1 penetrates through the first mounting plate 1a1, one end of the driving rod 3c2 is mounted on the output end of the driving motor 3c1, the driving frame 3c3 is horizontally mounted on the outer wall of the driving rack 3a2 of the first crushing assembly 3a, and the other end of the driving rod 3c2 is provided with a sliding column in sliding fit with the sliding frame; the driving motor 3c1 drives the driving rod 3c2 to rotate, the driving rod 3c2 drives the sliding column to synchronously rotate, the sliding column drives the driving frame 3c3 to circularly move up and down, the driving frame 3c3 drives the driving rack 3a2 of the first crushing assembly 3a to circularly move up and down, and the driving rack 3a2 drives the driving rack 3a2 of the second crushing assembly 3b to reversely move through the third gear 1a 5.

The screening device 4 comprises a screening hopper 4a, a screening plate 4b, a supporting plate 4c, two vibration motors 4d and four balance supporting components 4e, wherein the four balance supporting components 4e are installed on the supporting plate 4c in a rectangular shape, four U-shaped plates 4a1 which correspond to the four balance supporting components 4e one by one are arranged on the outer wall of the screening hopper 4a, the tops of the four balance supporting components 4e are respectively connected to the four U-shaped plates 4a1, the screening plate 4b is installed in the screening hopper 4a, a plurality of screen holes 4b1 are formed in the screening plate 4b, and the two vibration motors 4d are symmetrically installed on the outer wall of the screening hopper 4 a; two vibrating motor 4d simultaneous working make to screen hopper 4a produce the shake, the building concrete block disintegrating slag in the screening hopper 4a falls into on unloading conveyer belt 6 through sieve mesh 4b1 on screening board 4b one by one along with the shake, metal in the building concrete block is because unable by the breakage, consequently, the metal can be kept somewhere on screening board 4b, when screening hopper 4a shake, four balanced supporting component 4e can guarantee to screen hopper 4a keep balance, avoid the shake too big.

The balance support assembly 4e comprises a balance weight 4e1, a balance post 4e2 and a balance spring 4e3, wherein the balance weight 4e1 is installed on the support plate 4c, the balance post 4e2 is vertically installed on the balance weight 4e1, the balance spring 4e3 is sleeved on the balance post 4e2, and the top of the balance spring 4e3 is connected to the corresponding U-shaped plate 4a 1; the restoring force of the balance spring 4e3 is used to avoid an excessive shaking amplitude of the sifting hopper 4 a.

The carrying device 5 comprises a portal frame 5a, a carrying electric cylinder 5b, a lifting cylinder 5c and an electromagnet 5d, wherein the carrying electric cylinder 5b is installed below the top of the portal frame 5a, a U-shaped third installation plate 5b1 is arranged on a sliding table of the carrying electric cylinder 5b, the lifting cylinder 5c is vertically installed on the third installation plate 5b1, and the electromagnet 5d is installed at the output end of the lifting cylinder 5 c; the conveying electric cylinder 5b can drive the lifting cylinder 5c and the electromagnet 5d to translate, the lifting cylinder 5c can drive the electromagnet 5d to lift, and the electromagnet 5d can adsorb metal on the screening plate 4 b.

The working principle of the invention is as follows: the conveying motor 2a drives the second gear 2c to rotate, the second gear 2c drives the first gear 2b to rotate, the first gear 2b drives the transmission shaft 2e to synchronously rotate, the transmission shaft 2e is matched with the threaded hole to enable the conveying block 2d to move in the conveying material channel 1, the conveying block 2d not only can push building concrete blocks in the conveying material channel 1, but also can control the quantity of the building concrete blocks entering the conveying material channel 1 from the feeding hopper 8, meanwhile, the driving motor 3c1 drives the driving rod 3c2 to rotate and the sliding column to rotate, the sliding column drives the driving frame 3c3 to circularly move up and down, the driving frame 3c3 drives the driving rack 3a2 of the first crushing assembly 3a to circularly move up and down, the driving rack 3a2 drives the driving rack 3a2 of the second crushing assembly 3b to reversely move through the third gear 1a5, therefore, the two crushing pressing plates 3a1 move up and down alternatively, the crushing pressing plates 3a1 automatically crush the building concrete blocks below the crushing pressing plates, crushed building concrete block debris can fall into the screening hopper 4a, then the two vibration motors 4d work simultaneously to enable the screening hopper 4a to shake, the building concrete block debris in the screening hopper 4a can fall into the blanking conveyer belt 6 through the sieve holes 4b1 on the screening plate 4b one by one along with shaking, and metal in the building concrete blocks can not be crushed, therefore, metal can be left on the screening plate 4b, then the carrying electric cylinder 5b and the lifting air cylinder 5c are matched to drive the electromagnet 5d to move in two axial directions, the electromagnet 5d works to adsorb the metal on the screening plate 4b, and finally the metal is placed into the collecting vehicle 7, so that the metal in the building concrete block is automatically recovered.

Claims

1. A building concrete block waste recycling device is characterized by comprising a conveying material channel (1), a conveying device (2), a crushing device (3), a screening device (4), a carrying device (5), a discharging conveying belt (6) and a collecting vehicle (7), wherein the conveying material channel (1), the screening device (4) and the discharging conveying belt (6) are arranged along a straight line, the conveying material channel (1) is of a hollow structure, a feeding hopper (8) communicated with the inside of the conveying material channel is arranged at the top of the conveying material channel (1), the conveying device (2) is installed at one end of the conveying material channel (1), an installation shell (1 a) is arranged on the conveying material channel (1) and beside the feeding hopper (8), the crushing device (3) is installed on the installation shell (1 a), four first supporting legs (1 b) which are distributed in a rectangular shape are arranged at the bottom of the conveying material channel (1), the carrying device (5) is positioned right above the screening device (4), and the collecting vehicle (7) is positioned beside the blanking conveying belt (6);

the conveying device (2) comprises a conveying motor (2 a), a first gear (2 b), a second gear (2 c), a conveying block (2 d) and a transmission shaft (2 e) with an external thread, the conveying block (2 d) is slidably mounted in the conveying material channel (1), an extension plate (1 c) horizontally arranged is arranged on the conveying material channel (1), a rotating seat (1 c 1) is arranged on the extension plate (1 c), the transmission shaft (2 e) is rotatably mounted on the rotating seat (1 c 1), a threaded hole in threaded fit with the transmission shaft (2 e) is formed in the back of the conveying block (2 d), the first gear (2 b) is mounted on one end of the transmission shaft (2 e), the conveying motor (2 a) is mounted on the extension plate (1 c), the second gear (2 c) is mounted on the output end of the conveying motor (2 a), the first gear (2 b) is meshed with the second gear (2 c), and the bottom of the extension plate (1 c) is provided with two second supporting feet (1 c 2) which are symmetrically arranged;

the crushing device (3) comprises a first crushing assembly (3 a), a second crushing assembly (3 b) and a driving assembly (3 c), the first crushing assembly (3 a) and the second crushing assembly (3 b) are symmetrically arranged in the mounting shell (1 a), and the first crushing assembly (3 a) and the second crushing assembly (3 b) are distributed back and forth along the direction of a material channel in the conveying material channel (1);

the mounting structure is characterized in that an L-shaped first mounting plate (1 a 1) is arranged on the outer wall of the mounting shell (1 a), a second mounting plate (1 a 2) which is horizontally arranged is arranged on the first mounting plate (1 a 1), and the driving assembly (3 c) is mounted on the second mounting plate (1 a 2);

the first crushing assembly (3 a) and the second crushing assembly (3 b) are identical in structure and comprise a crushing pressure plate (3 a 1) and a driving rack (3 a 2), the driving rack (3 a 2) is vertically arranged on the crushing pressure plate (3 a 1), a sliding seat (1 a 3) in sliding fit with the driving rack (3 a 2) and a through hole for the driving rack (3 a 2) to pass through are arranged on the mounting shell (1 a), the top of the crushing pressure plate (3 a 1) is provided with two guide rods (3 a 3) which are symmetrically arranged, the mounting shell (1 a) is provided with two guide seats (1 a 4) which are in one-to-one sliding fit with the two guide rods (3 a 3), the mounting shell (1 a) is provided with a mounting seat between the two driving racks (3 a 2), a third gear (1 a 5) is rotatably mounted on the mounting seat, and the third gear (1 a 5) is meshed with the two driving racks (3 a 2);

drive assembly (3 c) include driving motor (3 c 1), actuating lever (3 c 2) and be annular drive frame (3 c 3), driving motor (3 c 1) are installed on second mounting panel (1 a 2) to the output of driving motor (3 c 1) runs through first mounting panel (1 a 1), the one end of actuating lever (3 c 2) is installed on the output of driving motor (3 c 1), drive frame (3 c 3) are horizontal installation on drive rack (3 a 2) outer wall of first broken subassembly (3 a), the other end of actuating lever (3 c 2) is equipped with the traveller with carriage sliding fit.

2. The construction concrete block waste recycling device according to claim 1, characterized in that: the screening device (4) comprises a screening hopper (4 a), a screening plate (4 b), a support plate (4 c), two vibrating motors (4 d) and four balance support components (4 e), wherein the four balance support components (4 e) are arranged on the support plate (4 c) in a rectangular shape, the outer wall of the screening hopper (4 a) is provided with four U-shaped plates (4 a 1) which are in one-to-one correspondence with the four balance supporting components (4 e), the tops of the four balance supporting components (4 e) are respectively connected to the four U-shaped plates (4 a 1), screening board (4 b) is installed in screening hopper (4 a), has seted up a plurality of sieve mesh (4 b 1), two on screening board (4 b) vibrating motor (4 d) symmetry is installed on the outer wall of screening hopper (4 a).

3. The waste recycling device for building concrete blocks of claim 2, wherein the balance support component (4 e) comprises a balance weight (4 e 1), a balance post (4 e 2) and a balance spring (4 e 3), the balance weight (4 e 1) is installed on the support plate (4 c), the balance post (4 e 2) is vertically installed on the balance weight (4 e 1), the balance spring (4 e 3) is sleeved on the balance post (4 e 2), and the top of the balance spring (4 e 3) is connected to the corresponding U-shaped plate (4 a 1).

4. The building concrete block waste recycling device according to claim 1, wherein the carrying device (5) comprises a portal frame (5 a), a carrying electric cylinder (5 b), a lifting cylinder (5 c) and an electromagnet (5 d), the carrying electric cylinder (5 b) is installed below the top of the portal frame (5 a), a third U-shaped installation plate (5 b 1) is arranged on a sliding table of the carrying electric cylinder (5 b), the lifting cylinder (5 c) is vertically installed on the third installation plate (5 b 1), and the electromagnet (5 d) is installed at the output end of the lifting cylinder (5 c).