CN104441983B - The Neutron beam equipment of steel plate on-line automatic spray marking machine - Google Patents

Abstract

The invention discloses a beam device of an online automatic marking machine for steel plates, which includes a spray nozzle. The beam device is located below the paint nozzle and has a concave beam plate. There is a drainage tube on the opposite side, and a negative pressure hole is opened in the concave part of the beam plate. The negative pressure hole is connected to the negative pressure generating device in the spraying pipeline system, and the excess paint in the concave part of the beam plate is applied. Negative pressure for recovery. Compared with the existing technology, it can solve the problem that the existing marking equipment is huge and occupies a large area. When marking the surface of the steel plate, there are specific temperature requirements, the printing quality is poor, and it is not compatible with the existing equipment of the enterprise. The import of a complete set results in high cost and harsh environment on the job site.

Description

Beam device of online automatic marking machine for steel plate

technical field

The invention relates to the technical field of product marking equipment, in particular to a beam flow device applied to an online automatic marking machine for spraying steel plate surface product marks on hot-rolled medium-thick plates in the iron and steel industry.

technical background

At present, the vast majority of medium and heavy plate production enterprises in my country basically use the manual spraying method for the surface marking of steel plate products, that is, use a manual paint spray gun to spray a template with empty fonts in advance. , placed on the surface of the steel plate, and sprayed back and forth, thus showing the factory information of the product, not only the labor intensity of the workers, the harsh working environment, the fast pace of production, the nervousness, and the error-prone Atomized paint dust has also caused certain harm to the physical and mental health of employees, and the characters or patterns marked are not uniform and beautiful. Therefore, for many years, the surface automatic marking equipment of hot-rolled steel plates has always been a major technical equipment that manufacturers of medium and heavy plates urgently need to solve.

With the rapid development of metallurgical enterprises in recent years, some medium and heavy plate production enterprises have successively introduced foreign automatic marking surface printing equipment. These imported steel plate surface marking equipment are extremely expensive, and subsequent maintenance and operation costs At the same time, the equipment itself also has technical defects, which are manifested in:

1. The equipment structure is huge and complex, and it occupies a large area, requiring special equipment foundation;

2. Using the dot matrix spraying method, the performance of characters or patterns is relatively simple, and its size and format are relatively fixed, basically there is no room for expansion and adjustment, especially for logos such as trademarks, not only the form of expression is extremely limited, And it must be scheduled and solidified in advance;

3. The valve control components used in dot-matrix spraying are not only complicated in flow path and control, but also difficult to repair and maintain, and the cleaning after each spraying is carried out with special organic solvents for coatings, and the chemical components contained in them are also very difficult. Unavoidable harm to the environment and people;

4. Since the surface temperature of hot-rolled medium and thick plates varies greatly when marking, and the paint used in imported marking equipment is difficult to solidify at low temperatures, and its surface adhesion is poor when the temperature exceeds 270 ° C. It also dropped sharply, so imported equipment has specific temperature requirements when marking the surface of the steel plate;

5. For the valve control assembly composed of multiple nozzles, it is difficult to ensure the consistency of the working state of each nozzle, which makes the sprayed spots have large differences in size, edge, shape, etc. Or even the lack of burrs and spray points, thus seriously affecting the appearance of the product logo;

6. It is difficult for the computer system configured by the imported equipment to be well compatible and functionally expandable with the enterprise's computer system in terms of software functions and interfaces;

7. Since the atomized paint permeates the entire work site during product labeling operations, it also poses a great hazard to the physical and mental health of employees and the environment;

8. Taking into account the differences in equipment level, production process, site layout, rolling rhythm, steel plate surface marking temperature and marking content of various medium and heavy plate production enterprises, the existing or imported medium and heavy plate surface marking equipment, It is difficult to fully meet the actual identification requirements of enterprises, especially its ability to express enterprise trademarks or patterns is seriously insufficient, which also restricts the effective application of these devices.

Contents of the invention

The invention provides a single spray nozzle, the marked characters and patterns are regular, beautiful, clean, clear and eye-catching, and will not appear such as tailing, blurring, adhesion and other phenomena; only one nozzle, equipment and system maintenance Simple, fast troubleshooting, improved system reliability and maintainability, and track consistency; effectively compatible with the characteristics of high-temperature water-based paint and atomizing nozzles, making it possible to mark the surface of high-low temperature and large-span products, and also for Domestic water-based paint has opened up a new application field; the paint atomization nozzle is used, and the special paint valve is used to control its opening and closing. The nozzle itself does not need to move, which ensures the working condition and service life of the nozzle. The beam device of the online automatic marking machine.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

The present invention includes a spray nozzle, the beam flow device is located below the paint nozzle, has a sunken beam plate, and a drainage tube is opened at the concave portion of the beam plate opposite to the paint nozzle, and the concave portion of the beam plate is opened. There is a negative pressure hole, and the negative pressure hole is connected to the negative pressure generating device in the spraying pipeline system to apply negative pressure to the excess paint in the concave part of the beam plate to recover, and a negative pressure hole is set at the outlet of the drainage tube. A pressure chamber, the negative pressure chamber has a negative pressure hole opposite to the outlet of the drainage tube; the negative pressure hole is connected to the negative pressure generating device in the spraying pipeline system, and applies negative pressure to the excess paint at the outlet of the drainage tube to recycle.

Further: the negative pressure chamber is formed by connecting the concave hole on the lower surface of the beam plate and the orifice plate covering the surface of the concave hole.

Further: the centerline of the stream of the paint nozzle coincides with the centerline of the drainage pipe.

The advantage of the present invention is that a single spray nozzle is used, and the characters and patterns marked are regular, beautiful, clean, with clear and eye-catching edges, and there will be no phenomena such as tailing, blurring, and adhesion; there is only one nozzle, and equipment and system maintenance Simple, fast troubleshooting, improved system reliability and maintainability, and track consistency; effectively compatible with the characteristics of high-temperature water-based paint and atomizing nozzles, making it possible to mark the surface of high-low temperature and large-span products, and also for The domestic water-based paint has opened up a new application field; the paint atomizing nozzle is used, and the special paint valve is used to control its opening and closing. The nozzle itself does not need to move, which ensures the working condition and service life of the nozzle.

Description of drawings

Fig. 1 is a cross-sectional view of the structure of the beam device of the present invention.

Fig. 2 is a schematic diagram of the frame when the present invention is applied to an online automatic marking machine for steel plates.

FIG. 3 is a top view of FIG. 2 .

Fig. 4 is a schematic diagram of the control system of the online automatic marking machine for steel plates shown in Fig. 2 .

Fig. 5 is a schematic diagram of the spraying pipeline system of the beam device of the present invention.

Fig. 6 is a structural schematic diagram of the three-dimensional motion positioning mechanism of the online automatic marking machine for steel plates shown in Fig. 2 .

detailed description

The drawings of the present invention are as follows: 1-reinforced corner piece; 2-column; 3-supporting foot; 4-connecting column 1; 5-Y axis linear module; 6-X axis servo motor; 7-X axis line Module; 8-X-axis synchronization rod; 9-valve box; 10-Z-axis linear module; 11-nozzle connector; 12-nozzle seat; 13-beam device; 14-installation base plate; 15-fixed block ;16-working beam; 17-beam; 18-Y-axis servo motor; 19-Z-axis servo motor; 20-Y-axis synchronization rod; 21-paint nozzle; 22 nozzle fixing screw; Screw; 25-fixed bottom plate; 26-adjusting plate; 27-fixing screw; 28-fixing bolt, nut; 29-screw; 30-hole plate; 31-sealing gasket; 32-beam plate; －Negative pressure hole; 35-computer; 36-servo control card; 37-terminal board; 38-servo controller; 39-AC servo motor; 40-manual ball valve; 41-air filter; 42-pressure regulating valve; 43 -atomizing gas solenoid valve; 44-cleaning water valve; 45-paint valve; 46-cleaning water valve control solenoid valve; 47-paint valve control solenoid valve; 48-water filter; 49-manual valve; 50-paint cycle Pump; 51-Pressure regulating valve; 52-Paint barrel; 53-Paint extraction pump control solenoid valve; 54-Pressure regulating valve; 55-Paint extraction pump; 56-Paint recycling bucket; 57-Clear water pipeline; Road; 59-paint pipeline; 60-shared pipeline; 61-X-axis motion slider; 62-X-axis synchronous wheel; 63-Y-axis motion slider; 64-Y-axis synchronous wheel; 65-Z-axis synchronous wheel , 66-X-axis coupling + reducer; 67-Y-axis coupling + reducer; 68-Z-axis coupling + reducer.

As shown in accompanying drawing 1, beam flow device of the present invention comprises spray nozzle, and described beam flow device 13 is positioned at coating nozzle 21 below, has the beam flow plate 32 of band depression, and coating There is a drainage tube 33 opposite to the nozzle 21, and a negative pressure hole is opened in the recess of the beam plate 32. The negative pressure hole is connected to the negative pressure generating device in the spraying pipeline system. The excess paint at the place can be recovered by applying negative pressure.

A negative pressure chamber is arranged at the outlet of the drainage tube 33, and a negative pressure hole 34 is arranged at the opposite place of the negative pressure chamber and the outlet of the drainage tube 33; the negative pressure hole 34 is connected to the negative pressure in the spraying pipeline system The generating device applies negative pressure to the excess paint at the outlet end of the drainage tube 33 for recovery.

The negative pressure cavity of the beam device 13 is formed by connecting the concave hole on the lower surface of the beam plate 32 with the orifice plate 30 covering the surface of the concave hole.

The flow centerline of the paint nozzle 21 coincides with the centerline of the drainage pipe 33 .

In this embodiment, the beam device is installed on the steel plate online automatic marking machine, including the basic frame, the three-dimensional movement positioning mechanism, the spraying pipeline system, the paint nozzle 21 and the beam flow device 13 installed at the positioning end of the three-dimensional movement positioning mechanism, A beam device 13 that follows the movement of the paint nozzle 21 is arranged in the nozzle direction of the paint nozzle 21 .

The three-dimensional motion positioning mechanism fixed by the beam device 13 includes an X-axis, a Y-axis, and a Z-axis. The X-axis, Y-axis, and Z-axis are superimposed and connected to each other, wherein the X-axis is fixed to the base frame, and the Y-axis The linear module fixed on the X-axis is cross-connected with the X-axis, and the Z-axis is fixed on the linear module of the Y-axis to be cross-connected with the Y-axis; the beam device 13 and the paint nozzle 21 are fixed on the Z-axis The lower end of the lower end; the linear module of the X axis, the linear module of the Y axis and the linear module of the Z axis are respectively installed with their respective servo motors and coaxial reducers.

The basic frame is a vertical frame structure, the X-axis of the three-dimensional motion positioning mechanism is fixed on the basic frame, and the Z-axis is located outside the basic frame.

Described spray pipeline system comprises:

(1), the paint valve 45, the paint valve 45 communicates with the paint bucket 52, and its paint output end communicates with the paint nozzle 21 for supplying paint to the paint nozzle 21;

(2), the cleaning water valve 44, the cleaning water valve 44 is connected with the clean water pipeline, and the cleaning water outlet end is connected with the paint nozzle 21, and is used to provide cleaning water to the paint nozzle 21;

(3) Paint extraction pump 55 , the extraction end of the paint extraction pump 55 is connected to the negative pressure chamber of the beam device 13 , and is used to extract the paint located in the negative pressure chamber.

The present invention will be described in further detail below in conjunction with accompanying drawing example:

The embodiment shown in Fig. 2, Fig. 3 and Fig. 6, the present invention includes the equipment base frame, and the equipment base frame is to be made of a plurality of upright columns 2, connecting columns 4, and working beams made of rectangular aluminum alloy profiles. 16 and beams 17 are connected to each other by bolts to form a three-dimensional rectangular frame. Support feet 3 are connected to the bottom of the equipment foundation frame. Reinforcing corner pieces 1 are provided at the joints of each column and beam body, and the parts are connected by bolts. . A three-dimensional coordinate positioning mechanism is installed on the equipment basic frame. The three-dimensional coordinate positioning mechanism is composed of an X axis, a Y axis and a Z axis. The X-axis of the mechanism is composed of two identical X-axis linear modules 7 installed on the linear module installation base plate 14 through the fixed block 15, and an X-axis motion slider 61 that can slide along the X-axis is provided on the X-axis; three-dimensional The Y-axis of the positioning mechanism is composed of two identical Y-axis linear modules 5, and is installed on the X-axis motion slider 61, and the Y-axis is provided with a Y-axis motion slider 63 that can slide along the Y-axis; The Z-axis of the three-dimensional positioning mechanism is a Z-axis linear module, which is installed on the Y-axis motion slide block 63, and limit switches are respectively installed at the two ends of the X-axis, Y-axis, and Z-axis. The above-mentioned equipment base frame and three-dimensional coordinate positioning mechanism adopt a building-block structure that is superimposed and installed one by one. When applied, it can be flexibly cut, combined and installed one by one according to the actual site and hot-rolled steel plate identification requirements. Not only the structure Lightweight, easy to transport, small footprint, no need for equipment foundation, and greatly shorten the installation and commissioning time on site, and greatly save the design and construction costs of infrastructure.

In Fig. 4 and Fig. 6, an AC servo control device is provided on the three-dimensional coordinate positioning mechanism. Servo motor 39, wherein the servo motor 6 of the X-axis and the coaxial reducer are connected with the X-axis synchronous wheel 62 through the X-axis X-axis synchronous rod, and the servo motor 18 of the Y-axis and the coaxial reducer are connected to the Y-axis through the Y-axis synchronous rod 20. The synchronous wheel 64 of the axis is connected, and the Z-axis servo motor 19 and the coaxial reducer are connected with the synchronous wheel 65 of the Z axis through the Z-axis coupling 68; the input ends of the three AC servo motors 39 are connected with the servo controller 38 The output terminal of servo controller 38 is connected with terminal board 37, and terminal board 37 is connected with the embedded servo control card installed on the PCI slot of computer 35 main boards, by the data and control requirements of computer 35 input, control each The positive and negative rotation of the servo motor and the opening of each solenoid valve. In other embodiments, the servo controller can also be connected to the computer via Ethernet.

A spraying mechanism composed of a spraying pipeline system and a beam device 13 is connected to the three-dimensional coordinate positioning mechanism. The spraying pipeline system is composed of a spraying control part, a nozzle cleaning part and a paint recovery part, wherein the spraying control part includes a passing pipeline. Interconnected paint bucket 52, paint valve 45, compressed air manual ball valve 40, air filter 41, air pressure regulator 51, paint circulation valve 50; Water valve control solenoid valve 46, pressure regulating valve 42, atomizer solenoid valve 43, water filter 48, and manual valve 49 are formed by pipeline connections, and the manual valve 49 is connected to the clean water pipeline 57; the paint recovery The part is composed of a paint recovery bucket 56, a paint extraction pump 55, a pressure regulating valve 54, and a paint extraction pump control solenoid valve 53; the paint valve 45, the cleaning water valve 44, the cleaning water control solenoid valve 58 and the paint valve control solenoid The valve 59 is integrally installed on a bracket, and is connected with the Y-axis moving slider 63; the beam flow device 13 is installed at the lower end of the Z-axis through the fixed bottom plate 25, and the paint nozzle 21 fixed on the nozzle holder 23 , the adjustment plate 26, the beam plate 32 installed on the adjustment plate 26, the drainage hole 33 installed on the beam plate 32 and the negative pressure hole 34 constitute, and the negative pressure hole 34 passes through the residual material recovery pipeline It communicates with the paint recovery bucket 56. The various components of the spraying pipeline system are connected by high-temperature resistant hoses. The paint pump 55 can be a pneumatic diaphragm pump, which forms a paint loop with the corresponding pressure regulating valve 54 and the paint pump control solenoid valve 53. delivery, recycling and recovery. The paint bucket 52 is used for storing the paint, and an agitator is arranged in the paint bucket for evenly stirring the paint in the bucket to prevent precipitation and coagulation of the paint. The clean water pipeline 57 is connected to the tap water pipe as cleaning water, and passes through the manual valve 49 and the corresponding water filter 48, the cleaning water valve control solenoid valve 46, and the atomizing gas solenoid valve 43 to form a cleaning circuit for components such as the nozzle 21. Compressed air is diverted through the manual ball valve 40, one way passes through the corresponding solenoid valve 47 and pressure regulating valve 51 to control the paint atomization of the nozzle 21, and one way passes through the corresponding paint pump to control the solenoid valve 53 and pressure regulating valve 54 to control the paint pump 55 and the recovery of coating, all the way through pressure regulating valve 42, the pressure size of control coating circulation.

In the described beam device, the atomized paint sprayed by the automatic nozzle is sprayed out through the drainage hole of the beam device at the center of the stream, and at the same time, the redundant paint is sprayed through the negative pressure hole of the beam device and the pneumatic diaphragm pump. Recycle into paint recycling bin.

Working process of the present invention is:

1. The system is in standby state: compressed air supplies power to the paint circulation pump 50 through the manual ball valve 40 and the pressure regulating valve 51, and the paint circulation pump 50 continuously reciprocates to circulate the paint through the paint pipeline 59 and the paint bucket 52 , filter, and at the same time, every specific time, the computer system will send a control signal through the servo control card 36 to start the cleaning water valve to control the solenoid valve 46 and the atomizing gas solenoid valve 43, so that the cleaning waterway will pass through the manual valve 49, water The filter 48, the cleaning water valve 44, and the common pipeline 60 clean the nozzle 21; to keep the nozzle clean and unimpeded.

2. Manual identification status:

When the steel plate to be marked reaches the printing position, the operator inputs the content to be printed into each text box on the software interface through the computer keyboard. After the input is completed, click "Print to start" on the software interface Simulate the button, the automatic marking device will automatically reach the set starting position, the three-dimensional coordinate robot will start to run according to the marking trajectory generated by the computer software, and the spraying mechanism will control the atomization gas electromagnetic valve 43, The paint valve controls the signal of the solenoid valve 47 to control the opening and closing of the paint valve 45 to form the marked characters or patterns, and realize automatic spray printing on the surface of the steel plate until it returns to the initial position after completion. After the job is completed, the computer system will automatically complete the cleaning of each spraying element, and wait for the next printing data and instructions.

3. Automatic identification status:

When the system is set to the automatic working condition, when the steel plate enters the marking area, the position detection device installed on the steel plate running line will generate a corresponding action signal, and the computer software system of the automatic labeling machine will automatically judge this according to the detection logic. Whether the steel plate has reached the designated position to be marked, once the steel plate reaches the specific marked position, the computer system will send a control signal interlocked with the steel plate conveying device to stop the operation of the steel plate, and after the set time delay, the computer system automatically passes through the network Obtain the data to be marked of the application enterprise, and carry out automatic printing and marking. After the marking is completed, the computer system of the marking machine automatically releases the interlocking signal with the steel plate conveying device, and stores the marking data of the marked steel plate, and at the same time displays a prompt for marking completion on the computer screen, so that the steel plate can be automatically or manually transported to the next Production processes. The whole marking operation process is carried out automatically without manual intervention.

Claims (2)

1. a Neutron beam equipment for steel plate on-line automatic spray marking machine, including spray nozzle, described Neutron beam equipment (13) is positioned at painting Material nozzle (21) lower section, has with recessed line plate (32), and under line plate (32), recess is relative with paint spray nozzle (21) locates Having drainage tube (33), under line plate (32), recess has negative pressure hole, and described negative pressure hole is connected to spray in pipe-line system Negative pressure generating device, applies negative pressure to the unnecessary coating being in recess under line plate (32) and reclaims, it is characterised in that: drawing The exit of flow tube (33) is provided with negative pressure cavity, and described negative pressure cavity has negative pressure hole with the outlet of drainage tube (33) relative to place (34)；Described negative pressure hole (34) is connected to spray the negative pressure generating device in pipe-line system, many to drainage tube (33) port of export Remaining coating applies negative pressure and reclaims.

The Neutron beam equipment of steel plate the most according to claim 1 on-line automatic spray marking machine, it is characterised in that: described negative pressure cavity It is connected to form negative pressure cavity with the orifice plate (30) covered at dimpled surface by the shrinkage pool of line plate (32) lower surface.