CN107081683B

CN107081683B - Metal surface treatment device

Info

Publication number: CN107081683B
Application number: CN201710085967.8A
Authority: CN
Inventors: 李建杰
Original assignee: Xiamen Dasi Intelligent Equipment Co ltd
Current assignee: Xiamen Dasi Intelligent Equipment Co ltd
Priority date: 2017-02-17
Filing date: 2017-02-17
Publication date: 2023-03-10
Anticipated expiration: 2037-02-17
Also published as: CN107081683A

Abstract

A metal surface treatment device comprises a sand blasting front section, a sand blasting rear section and a control panel; the front sandblasting section is positioned at the foremost end of the device and comprises a feeding unit, a sandblasting unit and a conveying line I; the feeding unit is positioned at the foremost end of the sand blasting front section; the sand blasting unit is connected with the feeding unit; the conveying line I is arranged in the front sandblasting section; the rear sand blasting section and the front sand blasting section comprise a cleaning unit, a drying unit, a blanking unit, a conveying line II and a conveying line III; the cleaning unit is positioned at the foremost end of the sand blasting rear section; the drying unit is connected with the cleaning unit; the blanking unit is connected with the drying unit; the conveying line II is arranged in the middle section in the sand blasting rear section; the conveying line III is arranged at the tail section in the sand blasting rear section; the control panel is installed on the housing of the sand blasting unit. The sand blasting machine is an automatic device, can automatically complete the operations of feeding, sand blasting, cleaning, drying and discharging, greatly improves the production efficiency and reduces the labor intensity of workers.

Description

Metal surface treatment device

Technical Field

The invention relates to a metal surface treatment device for surface treatment of a hard alloy blade.

Background

The surface of the hard alloy blade is rich in WC and Co, and has stronger activity, after the previous processes are circulated, some oxide skin is formed on the surface and more pollutants are adhered on the surface, some burrs possibly exist on the blade substrate, and if a direct coating is coated, the binding force of the coating is reduced or coatings such as foreign matter protrusions (adhesive materials) exist behind the coating are poor. Before coating, wet blasting treatment is carried out, and the abrasive with relatively fine particles is used, so that oxide skin, pollutants and the like on the surface of the blade can be removed, a fresh and clean surface is obtained, and the blasting strength is required not to be too high, or otherwise, too many matrixes on the surface of the blade can be removed, and size deviation is caused. In addition, wet blasting tends to cause re-oxidation of the blade.

Because the thermal expansion coefficients of the blade substrate and the coating are different, the coating has certain internal stress after the blade is coated, and the coating is easy to fall off and break during the cutting process; in addition, the coated surface is generally rough and matt, and direct sale as a product can be influenced by the selling phase of the product. The post-coating sand blasting treatment can reduce the internal stress of the coating, reduce the peeling probability of the coating, ensure that the surface of the coating is bright and glossy, and meanwhile, the sand blasting strength is required not to be too high, otherwise, the coating can be sprayed too much, so that the effective functional layer of the coating becomes thin.

The blade passivating equipment on the market at present easily causes the damage of the cutting edge of the blade and the scratch when the blade is processed, and meanwhile, the blade is processed by a passivating machine and then is subjected to sand blasting before coating, so that the working procedures are increased, and the cost is high; passivation is more difficult for certain shaped blades.

At present, most of sandblast passivation equipment on the market is semi-automatic or manual equipment, and the equipment is used for operation, so that the labor intensity of workers is high, and the production efficiency is low.

Disclosure of Invention

In order to overcome the defects of the conventional passivation device, the invention provides the metal surface treatment device which has the advantages of high automation degree, low cost, high passivation efficiency and good passivation effect.

The technical scheme of the invention is as follows: a metal surface treatment device comprises a sand blasting front section 1, a sand blasting rear section 2 and a control panel 3, and is characterized in that the sand blasting front section 1 is positioned at the foremost end of the metal surface treatment device, and the sand blasting front section 1 comprises a feeding unit 4, a sand blasting unit 5 and a conveying line I9; the feeding unit 4 is positioned at the foremost end of the sand blasting front section 1; the sand blasting unit 5 is connected with the feeding unit 4; the conveying line I9 is arranged in the sand blasting front section 1 and spans the feeding unit 4 and the sand blasting unit 5; the rear sand blasting section 2 is connected with the front sand blasting section 1, and the rear sand blasting section 2 comprises a cleaning unit 6, a drying unit 7, a blanking unit 8, a conveying line II 10 and a conveying line III 11; the cleaning unit 6 is positioned at the foremost end of the sand blasting rear section 2; the drying unit 7 is connected with the cleaning unit 6; the blanking unit 8 is connected with the drying unit 7; the conveying line II 10 is a storage track, is arranged in the middle section of the sand blasting rear section 2 and is positioned at the cleaning unit 6; the conveying line III 11 is a material receiving track, is arranged at the tail section in the sand blasting rear section 2 and stretches across the cleaning unit 6, the drying unit 7 and the blanking unit 8; the control panel 3 is arranged on the outer cover of the sand blasting unit 5; the feeding unit 4 comprises a feeding mechanism 21, a bracket 22, a separation cylinder 23, a trough guard plate I24, a tray detection sensor 25, a support wallboard I26, a tray support foot 27, a support bottom plate 28 and a rack I29; the feeding mechanism 21 is fixedly arranged on the rack I29 and is positioned at the lower part of the rack I29; the bracket 22 is connected with the feeding mechanism 21, is positioned above the feeding mechanism 21, and moves up and down under the driving of the feeding mechanism 21; 4 supporting legs 210 are arranged on the bracket 22; the supporting bottom plate 28 is arranged on the frame I29; the number of the separation cylinders 23 is 2, and the separation cylinders are distributed and installed on two sides of the supporting bottom plate 28; the supporting wall plate I26 is provided with two pieces which are respectively connected with the 2 separating cylinders 23 and move back and forth under the action of the separating cylinders 23; 4 tray supporting feet 27 are arranged on the supporting wall plate I26 and used for supporting trays; the tray detection sensor 25 is mounted on the supporting wall plate I26 by using a correlation sensor; the trough guard plate I24 is arranged on a frame of the conveying line I; the feeding mechanism 21 is a cylinder; the sand blasting unit 5 comprises a sand blasting mechanism I12 and a sand blasting mechanism II 13; the sand blasting mechanism I12 and the sand blasting mechanism II 13 have the same structure; the sand blasting mechanism I12 is positioned at the front end of the sand blasting unit 5; the sand blasting mechanism II 13 is connected with the sand blasting mechanism I12 and is positioned at the rear end of the sand blasting unit 5; the sand blasting mechanism I12 comprises a rack II 31, a YZ mechanism 32, a slurry pool 33, a separation tower 34, a dust cover 35, a sand blasting pump 36, a sand stirring pump 37, an overflow box 38, a leaching water tank 39, a sand adding box 310 and a plurality of connecting pipelines; the YZ mechanism 32 is fixedly arranged on the upper part of the frame II 31 by using a plurality of L-shaped fixing brackets 313; the dust cover 35 is arranged on the upper part of the frame II 31; the separation tower 34 is arranged on the frame II 31 and is connected with the sand stirring pump 37, the slurry tank 33 and the spray washing water tank 39 by pipelines; the sand blasting pump 36 is arranged on the frame II 31 and is positioned above the slurry tank 33; the sand stirring pump 37 is arranged on the frame II 31 and is positioned above the slurry tank 33; the slurry tank 33 is in a cone hopper shape and is arranged at the lower part of the rack II 31; a liquid level sensor I is arranged in the slurry tank 33 and used for measuring the water level height of the slurry tank 33; a plurality of sand stirring nozzles 312 are also arranged in the slurry tank 33 and used for increasing the stirring of the liquid in the slurry tank 33 so that the sand blasting solution is more uniform; a liquid overflow port 311 is also arranged in the slurry pool 33; the overflow box 38 is arranged at the lower part of the rack II 31 and is positioned below the slurry pool 33; the shower water tank 39 is arranged at the lower part of the frame II 31; the sand adding box 310 is arranged at the lower part of the frame II 31 and is used for storing sand; a vacuum material extractor and a material level sensor are arranged on the sand adding box 310; the sand blasting mechanism I is also provided with an electronic slurry meter 314 and a manual slurry meter 315; the sand blasting mechanism I12 is also provided with a spraying area; the spraying area is positioned at the rear section of the sand blasting mechanism I12; and the spraying area is provided with a spraying nozzle for cleaning the material tray and the blades subjected to sand blasting.

Further, the YZ mechanism 32 includes a Y-axis unit 42, a Z-axis unit 41, a blasting execution unit 43; the Y-axis unit 42 consists of a motor II 412, a base II 413 and a precision screw rod II; the motor II 412 is arranged on the base II 413 and used for driving the precision screw rod II to rotate; the base II 413 is a high-performance sliding rail; the Z-axis unit 41 is mounted on the base II 413 by using a ram 44, and slides back and forth along the base II 413 along with the ram 44; the Z-axis unit 41 comprises a motor I45, a base I46, a precision screw rod I, a fixed supporting seat I48, a ram I47, a supporting seat II 411, a shaft 49 and a splash-proof block 410; the motor I45 is arranged on the base I46 and used for driving the precision screw rod I to rotate; the base I46 uses a high-performance sliding rail; the fixed support seat I48 is connected with the ram I47 and is arranged on the base I46; the fixed support seat I48 slides up and down along the base I46 along with the ram I47; the supporting seat II 411 is arranged at the lower end of the base I46; the shaft 49 is fixed on the fixed supporting seat I48 by using screws and slides up and down along the base I46 along with the fixed supporting seat I48; the lower end of the shaft 49 is provided with a splash stop 410; the sand blast execution unit 43 is mounted at the end of the shaft 49 using a connector 51; the sand blasting execution unit 43 comprises a bracket 52, a fulcrum 53, a sand blasting disk 54 and a spray gun 57; the bracket 52 is a hollow tube, and a short shaft 58 is welded on the hollow tube; the short shaft 58 is connected with the connector 51; the front end and the rear end of the bracket 52 are respectively provided with an elongated slot 56; the sand blast plate 54 is connected with the fulcrum 53 and fixed on the bracket 52 by using a nut; the sand blasting disc 54 is provided with a plurality of round holes for placing the spray guns 57; the spray gun 57 is connected to a feed delivery pipe using a hose; 2 sand blasting disks 54 are arranged; the number of the spray guns 57 is 16 or 8.

Further, the cleaning unit 6 comprises a cleaning mechanism I61, a cleaning mechanism II 62, a dragging mechanism I63, a dragging mechanism II 64 and a rack III 65; the cleaning mechanism I61 and the cleaning mechanism II 62 have the same structure and are respectively arranged on the rack III 65; the conveying line II 10 is arranged between the cleaning mechanism I61 and the cleaning mechanism II 62; the dragging mechanism I63 is arranged on a frame III 66 and is positioned above the conveying line I9 and the conveying line II 10; the dragging mechanism I63 is positioned between the conveying line I9 and the conveying line II 10; the dragging mechanism II 64 is arranged on a frame III 66 and is positioned above the conveying line II 10 and the conveying line III 11; the dragging mechanism II 64 is positioned between the conveying line II 10 and the conveying line III 11; the cleaning mechanism I61 comprises a support III 67, an air cylinder III 68, an L-shaped side plate 69, a plurality of connecting cylinders 610, an air cylinder movable block 611, a guide bracket 612 and a cleaning groove 613; the air cylinder III 68 is mounted on the bracket III 67; the L-shaped side plate 69 is provided with 2 blocks which are connected into a whole by a plurality of connecting cylinders 610; the L-shaped side plate 69 is connected to the cylinder moving block 611 and moves up and down with the cylinder moving block 611; the guide bracket 612 is provided with two pieces, and is mounted on the L-shaped side plate 69 by using a screw connection; the cleaning tank 613 is positioned below the guide bracket 612 and fixed on the frame iii 65; a heating rod, a temperature sensor I, a liquid level sensor II and an ultrasonic vibration plate are arranged in the cleaning tank 613; the cleaning mechanism I61 is further provided with 3 position sensors for detecting the position of the cylinder moving block 611, namely a top sensor, a middle sensor and a bottom sensor.

Further, the dragging mechanism I63 comprises a motor I614, a supporting wall plate II 615, a sliding block 616 and a dragging actuating mechanism 617; the dragging mechanism I63 is driven by a motor I614, and a synchronous belt 622 and a synchronous wheel 621 are used for transmission; the motor I614 is arranged on the rack III 65; the supporting wall plate II 615 is provided with 2 blocks which are connected by a plurality of connecting rods; the sliding block 616 is connected with the timing belt 622 and slides back and forth along with the timing belt 622; the dragging actuator 617 is connected with the sliding block 616 and slides back and forth along with the sliding block 616 through the supporting wall plate II 615; the dragging actuating mechanism 617 comprises a side plate 618, a connecting plate I619 and a dragging air cylinder 620; the number of the dragging cylinders 620 is 4, and the dragging cylinders are respectively installed on the side plates 618 of the dragging actuating mechanism 617; the dragging mechanism II 64 is identical to the dragging mechanism I63 in structure.

Further, the drying unit comprises a high-pressure fan 71, a main air supply pipeline 72, a branch air supply pipeline 74, an air knife 75, a heating distributor 73, a frame IV 78 and a sealing cover 79; the high-pressure fan 71 is arranged on the rack IV 78 and is positioned below the conveying line III; one end of the main air supply pipeline 72 is connected with the high-pressure fan 71, and the other end of the main air supply pipeline is connected with the heating distributor 73; the heating distributor 73 is connected with a supply branch pipe 74; the air supply branch pipeline 74 is provided with 6 air knives 75 which are respectively connected; an air valve 76 is arranged at the air inlet end of each air supply branch pipeline 74 and used for controlling the opening and closing of air supply; the number of the air knives 75 is 6, 2 air knives are divided into 3 groups, and the 3 groups of air knives are respectively installed and fixed on the closed cover 79 and the frame V911 of the conveying line III 11; the heating distributor 73 is also provided with a temperature sensor II 77; the front end of the drying unit is also provided with a material tray height sensor for detecting whether an ultrahigh material tray is conveyed; the front part of the drying unit is also provided with a blowing device for blowing water drops on a material tray which is about to enter a drying area; the purging device is provided with an upper purging device and a lower purging device.

Further, the blanking unit 8 is mounted at the tail end of the conveying line iii 11 and comprises a blanking cylinder 81, a supporting plate 82, a connecting rod 83, a trough protective plate ii 84, a baffle 85, a connecting plate 86, a fixture block 87, a mounting plate 88 and a tray sensor 89; the blanking cylinder 81 is arranged on a frame V911 of the conveying line III 11 and is positioned below the conveying line III 11; the supporting plate 82 is connected with the blanking cylinder 81 and driven by the blanking cylinder 81 to move up and down; 4 mounting plates 88 are arranged and are respectively mounted on the frame V911; the number of the trough protection plates II 84 is also 4, and the trough protection plates II are respectively arranged on 4 mounting plates 88; the trough protective plates II 84 on the same side are connected through a connecting plate 86, and a baffle 85 is further arranged between the rear 2 trough protective plates II 84 to prevent the tray from falling off; the connecting rod 83 is mounted on the mounting plate 88; the connecting rod 83 swings around the mounting hole at a small angle; the connecting rod 83 is provided with 2 pieces, and each connecting rod 83 is provided with 2 clamping blocks 87; the latch 87 swings together with the link 83; the latch 87 is in a step shape, and the upper part of the latch 87 is contacted with the connecting plate 86 to prevent the latch 87 from rotating downwards; and the material tray sensor 89 is arranged at the tail end of the conveying line III 11 and used for detecting material tray signals.

Further, the conveying line I9 comprises a driving motor I91, a synchronous belt wheel set, a synchronous belt I92, a synchronous belt II 93, a sensor I94, a rack VII 95 and a sensor II 96; the driving motor I91 is arranged on the rack VII 95; the synchronous pulley set is provided with two groups which are arranged on two sides of the driving motor I91 and are respectively matched with the synchronous belt I92 and the synchronous belt II 93; tooth-shaped blocks with equal intervals are arranged on the synchronous belt I92 and used for conveying a material tray; the synchronous belt II 93 is a common synchronous belt; the sensor I94 is a tooth-shaped sensor, is arranged at the front end of the rack VII 95 and is used for detecting a tooth-shaped block signal and completing automatic feeding by matching with a feeding unit; the sensor II 96 is arranged at the tail end of the rack VII 95 and is used for detecting a material tray signal; the conveying line II 10 comprises a driving motor II 97, a rack VI 98 and a sensor III 99; the driving motor II 97 is arranged on the rack VI 98; the conveying line II 10 conveys the material trays by using a belt wheel group I and a round belt I; the belt wheel set I is provided with 2 groups; 2 circular belts are arranged on the circular belt I; the sensor III 99 is arranged at the tail end of the rack VI 98 and used for detecting a material tray signal; the conveying line III 11 comprises a driving motor III 910 and a rack V911; the driving motor III 910 is installed on the rack V911, and drives 2 groups of belt pulley groups II to drive 2 round belts II to complete the conveying of the material trays.

Further, the metal surface treatment device is controlled by a PLC.

The invention has the beneficial effects that: (1) The metal surface treatment device is an automatic device, the whole machine is uniformly controlled by a PLC, and the operations of feeding, sand blasting, cleaning, drying and discharging can be automatically completed, so that the production efficiency is greatly improved, and the labor intensity of workers is reduced. (2) The device adopts PLC programmed automatic control, is provided with a touch control panel, can input, modify and store process parameters through the control panel, and is very convenient for batch operation of products with different processes and different specification requirements. (3) The sandblast mechanism of sandblast unit uses YZ mechanism, and the speed of transfer chain, the speed of Y axle direction, the height of Z axle direction and the quantity of spray gun all can be adjusted according to actual demand, and applicable sandblast passivation in the cutter of different materials is handled, and the blade sand blasting is handled effectually, and application scope is wide. (4) This device is equipped with on-line grinding fluid solubility and detects, when the solubility reduces, can add the abrasive material and then guaranteed the stability of blade sand blasting treatment quality as required voluntarily, and the sandblast is effectual. (5) The invention is provided with a plurality of cleaning and drying units, thus ensuring the blades to be dry and clean after leaving the equipment.

Drawings

FIG. 1 is a diagrammatic plan view of the present invention; FIG. 2 is a schematic perspective view of the present invention; FIG. 3 is a diagrammatic perspective view of the conveyor line of the present invention; FIG. 4 is a schematic perspective view of a loading unit of the present invention; FIG. 5 is a schematic plan view of a loading unit of the present invention; FIG. 6 is a schematic perspective view of a blasting unit of the present invention; FIG. 7 is a schematic perspective view of another embodiment of the blasting unit of the present invention; FIG. 8 is a schematic perspective view of a blasting mechanism I or blasting mechanism II according to the present invention; FIG. 9 is a plan view of the blasting mechanism I or blasting mechanism II of the present invention; FIG. 10 is a simplified perspective view of a YZ mechanism of the present invention; FIG. 11 is a schematic perspective view of another embodiment of the YZ mechanism of the present invention; FIG. 12 is a plan view of a YZ mechanism of the present invention; FIG. 13 is a plan view of a post-grit blasting stage of the present invention; FIG. 14 is a plan view of either washer mechanism I or washer mechanism II of the present invention; FIG. 15 is a further angular plan view of either washer mechanism I or washer mechanism II of the present invention; FIG. 16 is a schematic perspective view of a rear sandblasting apparatus according to the present invention; FIG. 17 is a schematic perspective view of a drying unit according to the present invention; FIG. 18 is a schematic perspective view of a drag mechanism I or drag mechanism II of the present invention; FIG. 19 is a plan view of a drag mechanism I or drag mechanism II of the present invention; FIG. 20 is a schematic perspective view of a blanking unit of the present invention; fig. 21 is a plan view of a blanking unit of the present invention.

Detailed Description

The following detailed description of the present invention will be made with reference to examples and the accompanying drawings, but the present invention is not limited to the following examples.

As shown in the figure: a metal surface treatment device comprises a sand blasting front section 1, a sand blasting rear section 2 and a control panel 3, and is characterized in that the sand blasting front section 1 is positioned at the foremost end of the metal surface treatment device, and the sand blasting front section 1 comprises a feeding unit 4, a sand blasting unit 5 and a conveying line I9; the feeding unit 4 is positioned at the foremost end of the sand blasting front section 1; the sand blasting unit 5 is connected with the feeding unit 4; the conveying line I9 is arranged in the sand blasting front section 1 and spans the feeding unit 4 and the sand blasting unit 5; the rear sand blasting section 2 is connected with the front sand blasting section 1, and the rear sand blasting section 2 comprises a cleaning unit 6, a drying unit 7, a blanking unit 8, a conveying line II 10 and a conveying line III 11; the cleaning unit 6 is positioned at the foremost end of the sand blasting rear section 2; the drying unit 7 is connected with the cleaning unit 6; the blanking unit 8 is connected with the drying unit 7; the conveying line II 10 is a storage track, is arranged in the middle section of the sandblasting rear section 2 and is positioned at the cleaning unit 6; the conveying line III 11 is a material receiving track, is arranged at the tail section in the sand blasting rear section 2 and stretches across the cleaning unit 6, the drying unit 7 and the blanking unit 8; the control panel 3 is mounted on the housing of the sand blasting unit 5; the feeding unit 4 comprises a feeding mechanism 21, a bracket 22, a separation cylinder 23, a trough guard plate I24, a tray detection sensor 25, a support wall plate I26, a tray supporting foot 27, a support bottom plate 28 and a rack I29; the feeding mechanism 21 is fixedly arranged on the rack I29 and is positioned at the lower part of the rack I29; the bracket 22 is connected with the feeding mechanism 21, is positioned above the feeding mechanism 21, and moves up and down under the driving of the feeding mechanism 21; 4 supporting legs 210 are arranged on the bracket 22; the supporting bottom plate 28 is arranged on the frame I29; the number of the separation cylinders 23 is 2, and the separation cylinders are distributed and installed on two sides of the supporting bottom plate 28; the supporting wall plate I26 is provided with two pieces which are respectively connected with the 2 separating cylinders 23 and move back and forth under the action of the separating cylinders 23; 4 tray supporting feet 27 are arranged on the supporting wall plate I26 and used for supporting trays; the tray detection sensor 25 is mounted on the supporting wall plate I26 by using a correlation sensor; the trough guard plate I24 is arranged on a frame of the conveying line I; the feeding mechanism 21 is a cylinder; the sand blasting unit 5 comprises a sand blasting mechanism I12 and a sand blasting mechanism II 13; the sand blasting mechanism I12 and the sand blasting mechanism II 13 have the same structure; the sand blasting mechanism I12 is positioned at the front end of the sand blasting unit 5; the sand blasting mechanism II 13 is connected with the sand blasting mechanism I12 and is positioned at the rear end of the sand blasting unit 5; the sand blasting mechanism I12 comprises a frame II 31, a YZ mechanism 32, a slurry pool 33, a separation tower 34, a dust cover 35, a sand blasting pump 36, a sand stirring pump 37, an overflow box 38, a leaching water tank 39, a sand adding box 310 and a plurality of connecting pipelines; the YZ mechanism 32 is fixedly arranged on the upper part of the frame II 31 by using a plurality of L-shaped fixing brackets 313; the dust cover 35 is arranged on the upper part of the rack II 31; the separation tower 34 is arranged on the frame II 31 and is connected with the sand stirring pump 37, the slurry tank 33 and the spray washing water tank 39 by pipelines; the sand blasting pump 36 is arranged on the frame II 31 and is positioned above the slurry tank 33; the sand stirring pump 37 is arranged on the frame II 31 and is positioned above the slurry tank 33; the slurry tank 33 is in a cone hopper shape and is arranged at the lower part of the rack II 31; a liquid level sensor I is arranged in the slurry tank 33 and used for measuring the water level height of the slurry tank 33; a plurality of sand stirring nozzles 312 are also arranged in the slurry tank 33 and used for increasing the stirring of the liquid in the slurry tank 33 so that the sand blasting solution is more uniform; a liquid overflow port 311 is also arranged in the slurry tank 33; the overflow box 38 is arranged at the lower part of the frame II 31 and is positioned below the slurry pool 33; the shower water tank 39 is arranged at the lower part of the frame II 31; the sand adding box 310 is arranged at the lower part of the frame II 31 and is used for storing sand; a vacuum material extractor and a material level sensor are arranged on the sand adding box 310; the sand blasting mechanism I is also provided with an electronic slurry meter 314 and a manual slurry meter 315; the sand blasting mechanism I12 is also provided with a spraying and washing area; the spraying area is positioned at the rear section of the sand blasting mechanism I12; and the spray washing area is provided with spray washing nozzles for washing the material tray and the blades subjected to sand blasting.

The YZ mechanism 32 comprises a Y-axis unit 42, a Z-axis unit 41 and a sand blasting execution unit 43; the Y-axis unit 42 consists of a motor II 412, a base II 413 and a precision screw rod II; the motor II 412 is arranged on the base II 413 and used for driving the precision screw rod II to rotate; the base II 413 is a high-performance sliding rail; the Z-axis unit 41 is mounted on the base II 413 by using a ram 44, and slides back and forth along the base II 413 along with the ram 44; the Z-axis unit 41 comprises a motor I45, a base I46, a precision screw rod I, a fixed supporting seat I48, a ram I47, a supporting seat II 411, an axis 49 and a splash-proof block 410; the motor I45 is arranged on the base I46 and used for driving the precision screw rod I to rotate; the base I46 uses a high-performance sliding rail; the fixed support seat I48 is connected with the ram I47 and is arranged on the base I46; the fixed support seat I48 slides up and down along the base I46 along with the ram I47; the supporting seat II 411 is arranged at the lower end of the base I46; the shaft 49 is fixed on the fixed supporting seat I48 by using screws and slides up and down along the base I46 along with the fixed supporting seat I48; the lower end of the shaft 49 is provided with a splash stop 410; the sand blast execution unit 43 is mounted at the end of the shaft 49 using a connector 51; the sand blasting execution unit 43 comprises a bracket 52, a fulcrum 53, a sand blasting disc 54 and a spray gun 57; the bracket 52 is a hollow tube, and a short shaft 58 is welded on the bracket; the short shaft 58 is connected with the connecting head 51; the front end and the rear end of the bracket 52 are respectively provided with an elongated slot 56; the sand blast plate 54 is connected with the fulcrum 53 and fixed on the bracket 52 by using a nut; the sand blasting disc 54 is provided with a plurality of round holes for placing the spray guns 57; the spray gun 57 is connected to a feed delivery pipe using a hose; 2 sand blasting disks 54 are arranged; the number of the spray guns 57 is 16 or 8.

The cleaning unit 6 comprises a cleaning mechanism I61, a cleaning mechanism II 62, a dragging mechanism I63, a dragging mechanism II 64 and a rack III 65; the cleaning mechanism I61 and the cleaning mechanism II 62 have the same structure and are respectively arranged on the rack III 65; the conveying line II 10 is arranged between the cleaning mechanism I61 and the cleaning mechanism II 62; the dragging mechanism I63 is arranged on a frame III 66 and is positioned above the conveying line I9 and the conveying line II 10; the dragging mechanism I63 is positioned between the conveying line I9 and the conveying line II 10; the dragging mechanism II 64 is arranged on a frame III 66 and is positioned above the conveying line II 10 and the conveying line III 11; the dragging mechanism II 64 is positioned between the conveying line II 10 and the conveying line III 11; the cleaning mechanism I61 comprises a support III 67, an air cylinder III 68, an L-shaped side plate 69, a plurality of connecting cylinders 610, an air cylinder movable block 611, a guide bracket 612 and a cleaning groove 613; the air cylinder III 68 is mounted on the bracket III 67; the L-shaped side plate 69 is provided with 2 blocks which are connected into a whole by a plurality of connecting cylinders 610; the L-shaped side plate 69 is connected to the cylinder moving block 611 and moves up and down with the cylinder moving block 611; the guide bracket 612 is provided with two pieces, and is mounted on the L-shaped side plate 69 by screw connection; the cleaning tank 613 is positioned below the guide bracket 612 and fixed on the frame iii 65; a heating rod not shown in the figure, a temperature sensor I not shown in the figure, a liquid level sensor II not shown in the figure and an ultrasonic vibration plate not shown in the figure are arranged in the cleaning tank 613; the cleaning mechanism I61 is further provided with 3 position sensors, not shown in the figure, for detecting the positions of the cylinder moving block 611, namely a top sensor, a middle sensor and a bottom sensor.

The dragging mechanism I63 comprises a motor I614, a supporting wall plate II 615, a sliding block 616 and a dragging executing mechanism 617; the dragging mechanism I63 is driven by a motor I614, and a synchronous belt 622 and a synchronous wheel 621 are used for transmission; the motor I614 is arranged on the rack III 65; the supporting wall plate II 615 is provided with 2 blocks which are connected by a plurality of connecting rods; the sliding block 616 is connected with the timing belt 622 and slides back and forth along with the timing belt 622; the dragging actuating mechanism 617 is connected with the sliding block 616, passes through the supporting wall plate II 615 and slides back and forth along with the sliding block 616; the dragging actuating mechanism 617 comprises a side plate 618, a connecting plate I619 and a dragging air cylinder 620; the number of the dragging cylinders 620 is 4, and the dragging cylinders are respectively installed on the side plates 618 of the dragging actuating mechanism 617; the dragging mechanism II 64 is identical to the dragging mechanism I63 in structure.

The drying unit comprises a high-pressure fan 71, an air supply main pipeline 72, an air supply branch pipeline 74, an air knife 75, a heating distributor 73, a frame IV 78 and a closed cover 79; the high-pressure fan 71 is arranged on the rack IV 78 and is positioned below the conveying line III; one end of the main air supply pipeline 72 is connected with the high-pressure fan 71, and the other end of the main air supply pipeline is connected with the heating distributor 73; the heating distributor 73 is connected with a supply branch pipe 74; the air supply branch pipeline 74 is provided with 6 air knives 75 which are respectively connected; an air valve 76 is arranged at the air inlet end of each air supply branch pipeline 74 and used for controlling the opening and closing of air supply; the number of the air knives 75 is 6, 2 air knives are divided into 3 groups, and the 3 groups of air knives are respectively installed and fixed on the closed cover 79 and the frame V911 of the conveying line III 11; the heating distributor 73 is also provided with a temperature sensor II 77; the front end of the drying unit is also provided with a material tray height sensor which is not shown in the figure and is used for detecting whether an ultrahigh material tray is conveyed; the front part of the drying unit is also provided with a purging device which is not shown in the figure and is used for purging water drops on a material tray which is about to enter a drying area; the purging device is provided with an upper purging device and a lower purging device.

The blanking unit 8 is arranged at the tail end of the conveying line III 11 and comprises a blanking cylinder 81, a supporting plate 82, a connecting rod 83, a trough protective plate II 84, a baffle 85, a connecting plate 86, a fixture block 87, an installation plate 88 and a tray sensor 89; the blanking cylinder 81 is arranged on a frame V911 of the conveying line III 11 and is positioned below the conveying line III 11; the supporting plate 82 is connected with the blanking cylinder 81 and driven by the blanking cylinder 81 to move up and down; 4 mounting plates 88 are arranged and are respectively mounted on the frame V911; the number of the trough protection plates II 84 is also 4, and the trough protection plates II are respectively arranged on 4 mounting plates 88; the trough protective plates II 84 on the same side are connected through a connecting plate 86, and a baffle 85 is further arranged between the rear 2 trough protective plates II 84 to prevent the tray from falling off; the connecting rod 83 is mounted on the mounting plate 88; the connecting rod 83 swings around the mounting hole at a small angle; the connecting rod 83 is provided with 2 pieces, and each connecting rod 83 is provided with 2 clamping blocks 87; the latch 87 swings together with the link 83; the latch 87 is in a step shape, and the upper part of the latch 87 is contacted with the connecting plate 86 to prevent the latch 87 from rotating downwards; and the material tray sensor 89 is arranged at the tail end of the conveying line III 11 and used for detecting material tray signals.

The conveying line I9 comprises a driving motor I91, a synchronous belt wheel set, a synchronous belt I92, a synchronous belt II 93, a sensor I94, a rack VII 95 and a sensor II 96; the driving motor I91 is arranged on the rack VII 95; the synchronous pulley set is provided with two groups which are arranged on two sides of the driving motor I91 and are respectively matched with the synchronous belt I92 and the synchronous belt II 93; the synchronous belt I92 is provided with tooth-shaped blocks at equal intervals and used for conveying the material trays and controlling the arrangement of the material trays on the conveying line; the synchronous belt II 93 is a common synchronous belt; the sensor I94 is a tooth-shaped sensor, is arranged at the front end of the rack VII 95 and is used for detecting a tooth-shaped block signal and completing automatic feeding by matching with a feeding unit; the sensor II 96 is arranged at the tail end of the rack VII 95 and is used for detecting tray signals; the conveying line II 10 comprises a driving motor II 97, a rack VI 98 and a sensor III 99; the driving motor II 97 is arranged on the rack VI 98; the conveying line II 10 conveys the material trays by using a belt pulley group I and a round belt I; the belt wheel set I is provided with 2 groups; 2 circular belts are arranged on the circular belt I; the sensor III 99 is arranged at the tail end of the rack VI 98 and used for detecting a material tray signal; the conveying line III 11 comprises a driving motor III 910 and a rack V911; the driving motor III 910 is installed on the rack V911, and drives 2 groups of belt pulley groups II to drive 2 round belts II to complete conveying of the material trays.

The metal surface treatment device is controlled by a PLC.

The working flow of the invention is described as follows: (description: the charging trays are all charging trays provided with cutters), an operator manually puts the stacked charging trays (20 left and right) on a charging tray supporting foot of a charging unit, starts the device, the charging mechanism acts to sequentially take down the charging trays one by one and place the charging trays on a conveying line I, meanwhile, the conveying line I drives a synchronous belt I and a synchronous belt II on two sides to rotate under the driving of a driving motor I, and the equidistant transmission of the charging trays is realized through tooth-shaped blocks which are equidistantly distributed on the synchronous belt I; then, the material tray is conveyed by the conveying line I to reach the sand blasting unit for sand blasting operation, the material tray enters the sand blasting unit to be subjected to sand blasting operation twice and leaching operation twice and then is conveyed to the tail end of the conveying line I, after the first material tray reaches a specified position and touches the sensor II, the sensor II generates a signal, the dragging mechanism I acts, a dragging cylinder of the dragging mechanism I reaches the dragging position to drag the first material tray into a guide bracket of the cleaning mechanism I from left to right, then the first material tray is driven by the guide bracket of the cleaning mechanism I to be vertically thrown and washed in a cleaning tank for a plurality of times (the number of times can be set according to requirements), after the throwing is finished, the guide bracket of the cleaning mechanism I supports the cleaned first material tray to float out of the liquid level, and after the second material tray reaches the tail end of the conveying line I and triggers the sensor II, the dragging mechanism I acts again, dragging a second material disc into a guide bracket of a cleaning mechanism I from left to right, wherein the second material disc pushes a first material disc to move forwards and enter a conveying line II in the process, the first material disc is driven by the conveying line II to move forwards continuously (meanwhile, the second material disc repeats the action of the first material disc), when the first material disc reaches the tail end of the conveying line II and triggers a sensor III, the dragging mechanism II acts, a dragging cylinder of the dragging mechanism II reaches a dragging position to drag the first material disc into the guide bracket of the cleaning mechanism II from left to right, then the first material disc is driven by the guide bracket of the cleaning mechanism II to be thrown and washed up and down in a cleaning tank for a plurality of times (the times can be set according to requirements), after the throwing is completed, the guide bracket of the cleaning mechanism II supports the cleaned first material disc to float out of the liquid level, and after the second material disc reaches the tail end of the conveying line II and triggers the sensor III, the dragging mechanism II acts again, the second material disc is dragged into a guide bracket of the cleaning mechanism II from left to right, the second material disc in the process pushes the first material disc to move forwards and enter the conveying line III, the first material disc is driven by the conveying line III to continue to move forwards (meanwhile, the second material disc repeats the action of the first material disc), partial water drops are removed through the blowing device, the first material disc enters the drying unit to be dried, after the drying is completed, the first material disc continues to move forwards and reaches the blanking unit at the tail end of the conveying line III, the sensor III is triggered, the sensor III sends a signal, the blanking cylinder of the blanking unit moves to push the first material disc to move upwards to hang the first material disc on a clamping block of the blanking unit to complete the blanking action, after a certain number of material discs are stacked on the clamping block of the blanking unit, an operator manually takes down the material disc.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a metal surface treatment device, includes sandblast anterior segment (1), sandblast back end (2), control panel (3), its characterized in that: the sand blasting front section (1) is positioned at the foremost end of the novel metal surface treatment device, and the sand blasting front section (1) comprises a feeding unit (4), a sand blasting unit (5) and a conveying line I (9); the feeding unit (4) is positioned at the foremost end of the sand blasting front section (1); the sand blasting unit (5) is connected with the feeding unit (4); the conveying line I (9) is arranged in the sand blasting front section (1) and stretches across the feeding unit (4) and the sand blasting unit (5); the sand blasting rear section (2) is connected with the sand blasting front section (1), and the sand blasting rear section (2) comprises a cleaning unit (6), a drying unit (7), a blanking unit (8), a conveying line II (10) and a conveying line III (11); the cleaning unit (6) is positioned at the foremost end of the sand blasting rear section (2); the drying unit (7) is connected with the cleaning unit (6); the blanking unit (8) is connected with the drying unit (7); the conveying line II (10) is a storage track, is arranged in the middle section of the sand blasting rear section (2) and is positioned at the cleaning unit (6); the conveying line III (11) is a material receiving track, is arranged at the tail section in the sand blasting rear section (2) and stretches across the cleaning unit (6), the drying unit (7) and the blanking unit (8); the control panel (3) is arranged on the outer cover of the sand blasting unit (5); the feeding unit (4) comprises a feeding mechanism (21), a bracket (22), a separation cylinder (23), a trough protective plate I (24), a tray detection sensor (25), a support wall plate I (26), tray supporting feet (27), a support bottom plate (28) and a rack I (29); the feeding mechanism (21) is fixedly arranged on the rack I (29) and is positioned at the lower part of the rack I (29); the bracket (22) is connected with the feeding mechanism (21), is positioned above the feeding mechanism (21), and moves up and down under the driving of the feeding mechanism (21); 4 supporting soles (210) are arranged on the bracket (22); the supporting bottom plate (28) is arranged on the rack I (29); the number of the separation cylinders (23) is 2, and the separation cylinders are distributed and installed on two sides of the supporting bottom plate (28); the supporting wall plate I (26) is provided with two pieces which are respectively connected with 2 separating cylinders (23) and move back and forth under the action of the separating cylinders (23); 4 tray supporting feet (27) are arranged on the supporting wall plate I (26) and used for supporting the trays; the tray detection sensor (25) is mounted on the supporting wallboard I (26) by using a correlation sensor; the trough guard plate I (24) is arranged on a frame of the conveying line I; the feeding mechanism (21) is an air cylinder; the sand blasting unit (5) comprises a sand blasting mechanism I (12) and a sand blasting mechanism II (13); the sand blasting mechanism I (12) and the sand blasting mechanism II (13) have the same structure; the sand blasting mechanism I (12) is positioned at the front end of the sand blasting unit (5); the sand blasting mechanism II (13) is connected with the sand blasting mechanism I (12) and is positioned at the rear end of the sand blasting unit (5); the sand blasting mechanism I (12) comprises a frame II (31), a YZ mechanism (32), a slurry pool (33), a separation tower (34), a dustproof cover (35), a sand blasting pump (36), a sand stirring pump (37), an overflow box (38), a leaching water tank (39), a sand adding box (310) and a plurality of connecting pipelines; the YZ mechanism (32) is fixedly arranged on the upper part of the frame II (31) by using a plurality of L-shaped fixing supports (313); the dust cover (35) is arranged on the upper part of the frame II (31); the separation tower (34) is arranged on a frame II (31) and is connected with the sand stirring pump (37), the slurry pool (33) and the leaching water tank (39) by pipelines; the sand blasting pump (36) is arranged on the frame II (31) and is positioned above the slurry tank (33); the sand stirring pump (37) is installed on the rack II (31) and is positioned above the slurry pool (33); the slurry tank (33) is in a cone hopper shape and is arranged at the lower part of the rack II (31); a liquid level sensor I is arranged in the slurry tank (33) and used for measuring the water level height of the slurry tank (33); a plurality of sand stirring nozzles (312) are also arranged in the slurry pool (33) and used for increasing the stirring of the liquid in the slurry pool (33) so that the sand blasting solution is more uniform; a liquid overflow port (311) is also arranged in the slurry pool (33); the overflow box (38) is arranged at the lower part of the frame II (31) and is positioned below the slurry pool (33); the shower water tank (39) is arranged at the lower part of the rack II (31); the sand adding box (310) is arranged at the lower part of the frame II (31) and is used for storing sand; a vacuum material extractor and a material level sensor are arranged on the sand adding box (310); the sand blasting mechanism I is also provided with an electronic slurry meter (314) and a manual slurry meter (315); the sand blasting mechanism I (12) is also provided with a spraying area; the spraying area is positioned at the rear section of the sand blasting mechanism I (12); and the spraying area is provided with a spraying nozzle for cleaning the material tray and the blades subjected to sand blasting.

2. A metal surface treatment device according to claim 1, characterized in that: the YZ mechanism (32) comprises a Y-axis unit (42), a Z-axis unit (41) and a sand blasting execution unit (43); the Y-axis unit (42) consists of a motor II (412), a base II (413) and a precision screw rod II; the motor II (412) is arranged on the base II (413) and is used for driving the precision screw rod II to rotate; the base II (413) uses a high-performance sliding rail; the Z-axis unit (41) is arranged on the base II (413) by using a ram (44), and slides back and forth along the base II (413) along with the ram (44); the Z-axis unit (41) comprises a motor I (45), a base I (46), a precise screw rod I, a fixed support seat I (48), a ram I (47), a support seat II (411), a shaft (49) and a splash-proof block (410); the motor I (45) is arranged on the base I (46) and used for driving the precision screw rod I to rotate; the base I (46) uses a high-performance sliding rail; the fixed support seat I (48) is connected with the ram I (47) and is arranged on the base I (46); the fixed support seat I (48) slides up and down along the base I (46) along with the ram I (47); the supporting seat II (411) is arranged at the lower end of the base I (46); the shaft (49) is fixed on the fixed supporting seat I (48) by using screws and slides up and down along the base I (46) along with the fixed supporting seat I (48); the lower end of the shaft (49) is provided with a splash-proof stop block (410); the sand blasting execution unit (43) is installed at the tail end of the shaft (49) by using a connector (51); the sand blasting execution unit (43) comprises a bracket (52), a fulcrum (53), a sand blasting disc (54) and a spray gun (57); the bracket (52) is a hollow pipe, and a short shaft (58) is welded on the hollow pipe; the short shaft (58) is connected with the connector (51); the front end and the rear end of the bracket (52) are respectively provided with an elongated slot (56); the sand blast disc (54) is connected with the fulcrum shaft (53) and is fixed on the bracket (52) by using a nut; a plurality of round holes are formed in the sand blasting disc (54) and used for placing the spray guns (57); the spray gun (57) is connected to a delivery pipeline by a hose; 2 sand blasting disks (54) are arranged; the number of the spray guns (57) is 16 or 8.

3. A metal surface treatment device according to claim 1, characterized in that: the cleaning unit (6) comprises a cleaning mechanism I (61), a cleaning mechanism II (62), a dragging mechanism I (63), a dragging mechanism II (64) and a rack III (65); the cleaning mechanism I (61) and the cleaning mechanism II (62) are identical in structure and are respectively arranged on the rack III (65); the conveying line II (10) is arranged between the cleaning mechanism I (61) and the cleaning mechanism II (62); the dragging mechanism I (63) is arranged on a frame III (66) and is positioned above the conveying line I (9) and the conveying line II (10); the dragging mechanism I (63) is positioned between the conveying line I (9) and the conveying line II (10); the dragging mechanism II (64) is arranged on a frame III (66) and is positioned above the conveying line II (10) and the conveying line III (11); the dragging mechanism II (64) is positioned between the conveying line II (10) and the conveying line III (11); the cleaning mechanism I (61) comprises a support III (67), an air cylinder III (68), an L-shaped side plate (69), a plurality of connecting cylinders (610), an air cylinder movable block (611), a guide bracket (612) and a cleaning groove (613); the air cylinder III (68) is mounted on the bracket III (67); the L-shaped side plate (69) is provided with 2 blocks which are connected into a whole by using a plurality of connecting cylinders (610); the L-shaped side plate (69) is connected with the air cylinder movable block (611) and moves up and down along with the air cylinder movable block (611); the guide bracket (612) is provided with two pieces which are connected and installed on the L-shaped side plate (69) by using screws; the cleaning tank (613) is positioned below the guide bracket (612) and is fixed on the rack III (65); a heating rod, a temperature sensor I, a liquid level sensor II and an ultrasonic vibration plate are arranged in the cleaning tank (613); the cleaning mechanism I (61) is further provided with 3 position sensors for detecting the position of the cylinder moving block (611), and the position sensors are respectively a top end sensor, a middle sensor and a bottom end sensor.

4. A metal surface treatment device according to claim 3, characterized in that: the dragging mechanism I (63) comprises a motor I (614), a supporting wall plate II (615), a sliding block (616) and a dragging executing mechanism (617); the dragging mechanism I (63) is driven by a motor I (614), and a synchronous belt (622) and a synchronous wheel (621) are used for transmission; the motor I (614) is arranged on the rack III (65); the supporting wall plate II (615) is provided with 2 blocks which are connected by a plurality of connecting rods; the sliding block (616) is connected with the synchronous belt (622) and slides back and forth along with the synchronous belt (622); the dragging actuating mechanism (617) is connected with the sliding block (616) and slides back and forth together with the sliding block (616) through the supporting wall plate II (615); the dragging executing mechanism (617) comprises a side plate (618), a connecting plate I (619) and a dragging air cylinder (620); the number of the dragging cylinders (620) is 4, and the dragging cylinders are respectively arranged on a side plate (618) of the dragging executing mechanism (617); the dragging mechanism II (64) is identical to the dragging mechanism I (63) in structure.

5. A metal surface treatment device according to claim 1, characterized in that: the drying unit comprises a high-pressure fan (71), an air supply main pipeline (72), an air supply branch pipeline (74), an air knife (75), a heating distributor (73), a frame IV (78) and a sealing cover (79); the high-pressure fan (71) is arranged on the rack IV (78) and is positioned below the conveying line III; one end of the main air supply pipeline (72) is connected with the high-pressure fan (71), and the other end of the main air supply pipeline is connected with the heating distributor (73); the heating distributor (73) is connected with an air supply branch pipeline (74); the air supply branch pipeline (74) is provided with 6 air supply branch pipelines which are respectively connected with an air knife (75); an air valve (76) is arranged at the air inlet end of each air supply branch pipeline (74) and used for controlling the opening and closing of air supply; the number of the air knives (75) is 6, 2 air knives are divided into 3 groups, and the 3 groups of air knives are respectively installed and fixed on the closed cover (79) and the frame V (911) of the conveying line III (11); the heating distributor (73) is also provided with a temperature sensor II (77); the front end of the drying unit is also provided with a material tray height sensor for detecting whether an ultrahigh material tray is conveyed; the front part of the drying unit is also provided with a blowing device for blowing water drops on a material tray which is about to enter a drying area; the purging device is provided with an upper purging device and a lower purging device.

6. A metal surface treatment device according to claim 1, characterized in that: the blanking unit (8) is arranged at the tail end of the conveying line III (11) and comprises a blanking cylinder (81), a supporting plate (82), a connecting rod (83), a trough protective plate II (84), a baffle plate (85), a connecting plate (86), a clamping block (87), a mounting plate (88) and a tray sensor (89); the blanking cylinder (81) is arranged on a frame V (911) of the conveying line III (11) and is positioned below the conveying line III (11); the supporting plate (82) is connected with the blanking cylinder (81) and driven by the blanking cylinder (81) to move up and down; 4 mounting plates (88) are arranged and are respectively mounted on the frame V (911); the number of the trough protection plates II (84) is also 4, and the trough protection plates II are respectively arranged on 4 mounting plates (88); the trough protective plates II (84) on the same side are connected through a connecting plate (86), and a baffle plate (85) is further arranged among the rear 2 trough protective plates II (84) to prevent the tray from falling off; the connecting rod (83) is arranged on the mounting plate (88); the connecting rod (83) swings around the mounting hole at a small angle; the connecting rod (83) is provided with 2 pieces, and each connecting rod (83) is provided with 2 clamping blocks (87); the clamping block (87) swings together with the connecting rod (83); the clamping block (87) is in a step shape, the upper part of the clamping block (87) is in contact with the connecting plate (86), and the clamping block (87) is prevented from rotating downwards; and the material tray sensor (89) is arranged at the tail end of the conveying line III (11) and used for detecting material tray signals.

7. A metal surface treatment device according to claim 1, characterized in that: the conveying line I (9) comprises a driving motor I (91), a synchronous belt wheel set, a synchronous belt I (92), a synchronous belt II (93), a sensor I (94), a rack VII (95) and a sensor II (96); the driving motor I (91) is arranged on the rack VII (95); the synchronous pulley set is provided with two groups which are arranged on two sides of the driving motor I (91) and are respectively matched with the synchronous belt I (92) and the synchronous belt II (93); tooth-shaped blocks with equal intervals are arranged on the synchronous belt I (92) and are used for conveying a material tray; the synchronous belt II (93) is a common synchronous belt; the sensor I (94) is a tooth-shaped sensor, is arranged at the front end of the rack VII (95), is used for detecting a tooth-shaped block signal, and is matched with a feeding unit to complete automatic feeding; the sensor II (96) is arranged at the tail end of the rack VII (95) and is used for detecting a material tray signal; the conveying line II (10) comprises a driving motor II (97), a rack VI (98) and a sensor III (99); the driving motor II (97) is arranged on the rack VI (98); the conveying line II (10) conveys the material trays by using a belt wheel set I and a round belt I; the belt wheel set I is provided with 2 groups; 2 circular belts are arranged on the circular belt I; the sensor III (99) is arranged at the tail end of the rack VI (98) and is used for detecting a material tray signal; the conveying line III (11) comprises a driving motor III (910) and a frame V (911); and the driving motor III (910) is arranged on the frame V (911), and drives 2 groups of belt pulley groups II to drive 2 round belts II to complete the conveying of the material tray.

8. A metal surface treatment device according to claim 1, characterized in that: the novel metal surface treatment device is controlled by a PLC.