Steel bar surface coating spraying method based on coating spraying equipment

Abstract

The invention discloses a steel bar surface coating spraying method based on coating spraying equipment. The coating spraying equipment comprises a spraying assembly and a feeding assembly. The spraying method for the steel bar surface coating comprises the following specific steps that S1, external feeding equipment feeds and conveys a steel bar material to an opening of a fixed supporting piece of a feeding assembly, and a magnet piece at the opening of the fixed supporting piece adsorbs and fixes the steel bar material; s2, under the driving of the driving mechanism, the reinforcing steel bar materials move towards one side of the feeding end of the spraying assembly along with the fixed supporting piece; and S3, after the steel bar material passes through the transverse material supporting guide roller, the steel bar material penetrates through an inner hole of the longitudinal limiting barrel, and then enters the position where a spray head of a spraying assembly is located to be subjected to coating spraying operation. According to the device, the reinforcing steel bar materials can be conveyed at a constant speed, and the vibration quantity of the reinforcing steel bar materials conveyed at the constant speed can be kept within a low range, so that the spraying uniformity of a coating on the surface of the reinforcing steel bar is effectively ensured.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar surface coating spraying processing, specifically to a spraying method for a steel bar surface coating based on a coating spraying device, which can convey steel bar materials at a uniform speed and keep the vibration amount of the uniformly conveyed steel bar materials within a lower range, thereby effectively ensuring the spraying uniformity of the steel bar surface coating. Background Art

[0002] Steel bars used in some special working conditions need to be subjected to coating spraying treatment to ensure the service life of the steel bar materials under special working conditions.

[0003] Existing steel bar surface layer spraying devices generally include a coating material spray head and a steel bar feeding mechanism for transporting steel bar materials. A plurality of spray heads arranged at equal angles are used to uniformly spray the coating material onto the steel bar materials passing through the station where the spray heads are located. Since the existing steel bar feeding mechanism has relatively poor uniformity when transporting steel bar materials, and the steel bar materials often generate obvious vibration amounts during the conveying process, the spraying uniformity of the coating material on the surface of the steel bar materials often fails to meet the design requirements, which is very troublesome.

[0004] Therefore, the research purpose of the invention is to design a spraying method for a steel bar surface coating based on a coating spraying device that can convey steel bar materials at a uniform speed and keep the vibration amount of the uniformly conveyed steel bar materials within a lower range, thereby effectively ensuring the spraying uniformity of the steel bar surface coating. Summary of the Invention

[0005] Aiming at the technical problems existing in the above-mentioned prior art, the invention provides a spraying method for a steel bar surface coating based on a coating spraying device, which can effectively solve the technical problems existing in the above-mentioned prior art.

[0006] The technical solution of the invention is as follows: A spraying method for a steel bar surface coating based on a coating spraying device, The coating spraying device includes: A spraying assembly, including a fixed frame and a plurality of spray heads fixedly installed on the fixed frame. On one side of the feeding end of the spraying assembly, a plurality of transverse supporting guide rollers for supporting steel bars and at least one longitudinal limiting cylinder for vibration reduction are rotatably installed side by side on the fixed frame. There is a gap between the inner hole of the longitudinal limiting cylinder and the steel bar material; The feeding assembly includes a support frame fixedly arranged on one side of the feeding end of the spraying assembly 1. A number of corresponding fixed supports are movably arranged side by side on the support frame. The fixed supports are driven by a corresponding driving mechanism to circulate past one side of the feeding end of the spraying assembly 1. The fixed supports are respectively provided with openings for supporting steel bars upwards, and corresponding magnet members are fixedly installed at the openings of the fixed supports. The method for spraying the surface coating of the steel bar includes the following specific steps: S1. An external feeding device feeds and conveys the steel bar material to the opening of the circulating and moving fixed support. The magnet member at the opening of the fixed support adsorbs and fixes the steel bar material. S2. Driven by the driving mechanism, the steel bar material moves towards one side of the feeding end of the spraying assembly along with the fixed support. When the fixed support leaves one side of the feeding end of the spraying assembly, the magnet member disconnects the connection with the steel bar material, and the steel bar material continues to move towards one side of the feeding end of the spraying assembly. S3. After passing through the horizontal supporting roller, the steel bar material passes through the inner hole of the longitudinal limiting cylinder, and then enters the position where the nozzle of the spraying assembly is located for coating spraying operation. The inner hole of the longitudinal limiting cylinder restricts the vibration amplitude of the steel bar material.

[0007] After the step S3, there is also included step S4. The steel bar material after the coating spraying is output along one side of the discharging end of the spraying assembly, and is output outwards through a corresponding discharging assembly.

[0008] The discharging assembly adopted in the step S4 corresponds to the position of the feeding assembly and has the same structure as the feeding assembly.

[0009] There are three nozzles. The three nozzles are arranged in a staggered distribution at equal angles of 120° on the fixed frame, and surplus material collecting hoppers are respectively arranged outside the discharging ends of the three nozzles. The surplus material collecting hoppers are connected to the air inlet end of an external bag filter.

[0010] During the coating spraying operation in the step S3, the coating surplus material generated is collected by the surplus material collecting hopper and conveyed to the external bag filter for filtration and recycling.

[0011] A corresponding damping mechanism is arranged inside the longitudinal limiting cylinder. A vibration sensor for detecting the vibration amount of the horizontal supporting roller is fixedly installed on the mounting seat of the horizontal supporting roller located in front of the longitudinal limiting cylinder.

[0012] The damping mechanism includes a damping cavity arranged around the inner periphery of the inner hole of the longitudinal limiting cylinder. A driving cavity is arranged in the longitudinal limiting cylinder outside the damping cavity. A number of corresponding damping particles for damping are filled in the damping cavity. The driving cavity is connected to an external air compressor through a corresponding air filling pipe, and a pressure relief valve is connected to the air filling pipe. A number of corresponding connecting pipes are arranged in the damping cavity at intervals. The inner ends of the connecting pipes penetrate into the inner hole of the longitudinal limiting cylinder. Corresponding mounting pistons are movably installed in the connecting pipes respectively. Corresponding supporting balls are rotatably installed on the inner end faces of the mounting pistons respectively. Corresponding fixing rods are fixedly connected in the connecting pipes outside the mounting pistons respectively. Corresponding limiting springs are fixedly connected between the fixing rods and the mounting pistons respectively.

[0013] In step S3, when the vibration sensor detects that the vibration amount formed by the rotation of the transverse material supporting roller is greater than the set value V 1 At this time, it can be judged that the steel bar material is in a large vibration state at this time. At this time, control the external air compressor to inject high-pressure gas into the driving cavity to drive each mounting piston to move toward the inner hole side of the longitudinal limiting cylinder, so that each supporting ball abuts against the surface of the steel bar material respectively, so as to transfer the vibration amount of the steel bar material to the longitudinal limiting cylinder, and effectively reduce vibration under the friction energy consumption of the damping particles for damping.

[0014] When the vibration sensor detects that the vibration amount formed by the rotation of the transverse material supporting roller is less than the set value V 2 Then control the pressure relief valve to open for pressure relief, so that the mounting piston is reset under the drive of the limiting spring.

[0015] The driving mechanism adopts a chain conveyor, and the fixed support is fixedly installed on the transmission chain of the chain conveyor through corresponding mounting rods.

[0016] Advantages of the invention: 1) Through the open support of the fixed support and the adsorption and fixation method of the magnet part, the invention ensures the uniform conveying of the steel bar material; and supports the front side of the spraying section of the steel bar material through the transverse material supporting roller, so as to effectively prevent excessive sagging deformation of the spraying section of the steel bar material; then radially limit the steel bar material through the inner hole of the longitudinal limiting cylinder, so as to control the vibration amplitude generated when the steel bar material leaves the magnet part within a reasonable range. Thus, it can not only convey the steel bar material uniformly, but also keep the vibration amount of the uniformly conveyed steel bar material within a low range, so that the steel bar material does not deviate too much from the designed best spraying position, so as to effectively ensure the uniformity of the spraying of the steel bar surface coating.

[0017] 2) A damping mechanism is arranged in the longitudinal limiting cylinder of the invention. When the vibration sensor detects that the vibration amount formed by the rotation of the transverse material supporting roller is greater than the set value V 1When the vibration amount of the steel bar material is large, the external air compressor is controlled to inject high-pressure gas into the driving cavity, so as to drive each installation piston to move towards the inner hole side of the longitudinal limiting cylinder, so that each supporting ball respectively abuts against the surface of the steel bar, so as to transfer the vibration amount of the steel bar to the longitudinal limiting cylinder, and effectively reduce vibration under the friction energy consumption of the damping particles for vibration reduction. Therefore, the vibration generated when the steel bar material leaves the magnet part is further overcome, and the spraying uniformity of the steel bar surface coating is further effectively ensured.

[0018] 3) When the vibration sensor of the present invention detects that the vibration amount formed by the rotation of the transverse material supporting roller is less than the set value V 2 At this time, the pressure relief valve is controlled to open for pressure relief, so that the installation piston can be reset under the drive of the limiting spring. Therefore, on the premise of not affecting the uniform conveying of the steel bar material and reducing the wear amount between the supporting balls and the steel bar material, the vibration amount of the steel bar material is effectively and practically controlled within a lower range to ensure the practical effect of the present invention. Description of the Drawings

[0019] Figure 1 It is a process flow chart of the steel bar surface coating spraying method of the invention.

[0020] Figure 2 It is a structural schematic diagram of the coating spraying equipment of the invention.

[0021] Figure 3 It is a structural schematic diagram of the spraying assembly.

[0022] Figure 4 It is Figure 2 Partial enlarged view of part A in

[0023] Figure 5 It is a structural schematic diagram of a vibration reduction mechanism arranged on the longitudinal limiting cylinder.

[0024] Figure 6 It is a structural schematic diagram of a damping cavity filled with damping particles for vibration reduction.

[0025] Figure 7 It is a usage state diagram of the coating spraying equipment of the invention installed in a container body.

[0026] In the drawings: spraying assembly 1, fixed frame 101, spray head 102, waste material collection hopper 103, transverse material supporting roller 2, longitudinal limiting cylinder 3, feeding assembly 4, support frame 401, fixed support member 402, driving mechanism 403, magnet member 404, discharging assembly 5, damping cavity 601, driving cavity 602, damping particles for vibration reduction 603, connecting pipe 604, installation piston 605, supporting ball 606, fixed rod 607, limiting spring 608, vibration sensor 7, air filling pipe 8, pressure relief valve 9, installation rod 10. Detailed implementation manners

[0027] For the convenience of those skilled in the art to understand, the embodiments will now be further described in detail in conjunction with the drawings for the structure of the invention: Refer to Figure 1-7 , a spraying method for a steel bar surface coating based on a coating spraying device The coating spraying device includes: A spraying assembly 1, including a fixed frame 101 and a plurality of nozzles 102 fixedly installed on the fixed frame 101. On one side of the feeding end of the spraying assembly 1, a plurality of transverse supporting guide rollers 2 for supporting steel bars and at least one longitudinal limiting cylinder 3 for vibration damping are rotatably installed side by side on the fixed frame 101. A gap is provided between the inner hole of the longitudinal limiting cylinder 3 and the steel bar material; A feeding assembly 4, including a support frame 401 fixedly arranged on one side of the feeding end of the spraying assembly 1. A plurality of corresponding fixed support members 402 are movably arranged side by side on the support frame 401. The fixed support members 402 circulate past one side of the feeding end of the spraying assembly 1 under the drive of a corresponding driving mechanism 403. The fixed support members 402 are respectively provided with openings for steel bar support upwards, and corresponding magnet members 404 are fixedly installed at the openings of the fixed support members 402; The spraying method for the steel bar surface coating includes the following specific steps: S1, an external feeding device feeds and transports the steel bar material to the opening of the circulating and moving fixed support member 402, and the magnet member 404 at the opening of the fixed support member 402 adsorbs and fixes the steel bar material; S2, under the drive of the driving mechanism 403, the steel bar material moves towards one side of the feeding end of the spraying assembly 1 along with the fixed support member 402. When the fixed support member 402 leaves one side of the feeding end of the spraying assembly 1, the magnet member 404 disconnects from the steel bar material, and the steel bar material continues to move towards one side of the feeding end of the spraying assembly 1; S3, after the steel bar material passes through the transverse supporting guide roller 2, it passes through the inner hole of the longitudinal limiting cylinder 3, and then enters the position where the nozzles 102 of the spraying assembly 1 are located for coating spraying operation, and the inner hole of the longitudinal limiting cylinder 3 limits the vibration amplitude of the steel bar material.

[0028] The present invention ensures the uniform conveying of steel bar materials through the opening support of the fixed support member 402 and the adsorption and fixation method of the magnet member 404; and supports the front side of the spraying section of the steel bar materials through the transverse material supporting guide roller 2, so as to effectively prevent excessive sagging deformation of the spraying section of the steel bar materials; then radially limits the steel bar materials through the inner hole of the longitudinal limiting cylinder 3 to control the vibration amplitude generated when the steel bar materials leave the magnet member 404 within a reasonable range. Thus, it can not only convey the steel bar materials uniformly, but also keep the vibration amount of the uniformly conveyed steel bar materials within a lower range, so that the steel bar materials do not deviate excessively from the designed optimal spraying position, effectively ensuring the uniformity of the coating sprayed on the surface of the steel bars.

[0029] After the step S3, there is also included step S4. The steel bar materials after the coating spraying are output along one side of the discharging end of the spraying assembly 1 and are output outward through the corresponding discharging assembly 5. The discharging assembly 5 adopted in the step S4 corresponds to the position of the feeding assembly 4 and has the same structure as the feeding assembly 4.

[0030] There are three spray nozzles 102, and the three spray nozzles 102 are arranged on the fixed frame 101 in a staggered distribution at equal angles of 120°, and material residue collecting hoppers 103 are respectively arranged outside the discharging ends of the three spray nozzles 102. The material residue collecting hoppers 103 are connected to the air inlet end of an external bag filter. During the coating spraying operation in the step S3, the coating residues generated are collected by the material residue collecting hoppers 103 and conveyed to the external bag filter for filtration and recycling.

[0031] A corresponding vibration damping mechanism is arranged in the longitudinal limiting cylinder 3. A vibration sensor 7 for detecting the vibration amount of the transverse material supporting guide roller 2 is fixedly installed on the mounting seat of the transverse material supporting guide roller 2 located in front of the longitudinal limiting cylinder 3.

[0032] The vibration damping mechanism includes a vibration damping cavity 601 arranged around the inner hole of the longitudinal limiting cylinder 3. A driving cavity 602 is arranged in the longitudinal limiting cylinder 3 outside the vibration damping cavity 601. A plurality of corresponding vibration damping damping particles 603 are filled in the vibration damping cavity 601. The driving cavity 602 is connected to an external air compressor through a corresponding air filling pipe 8, and a pressure relief valve 9 is connected to the air filling pipe 8; a plurality of corresponding connecting pipes 604 are arranged in the vibration damping cavity 601 at intervals. The inner ends of the connecting pipes 604 penetrate into the inner hole of the longitudinal limiting cylinder 3. Corresponding mounting pistons 605 are movably installed in the connecting pipes 604 respectively. Corresponding supporting balls 606 are respectively rollingly installed on the inner end faces of the mounting pistons 605. Corresponding fixing rods 607 are respectively fixedly connected in the connecting pipes 604 outside the mounting pistons 605. Corresponding limiting springs 608 are respectively fixedly connected between the fixing rods 607 and the mounting pistons 605.

[0033] In step S3, when the vibration sensor 7 detects that the vibration amount formed by the rotation of the lateral material supporting roller 2 is greater than the set value V 1 At this time, it can be determined that the steel bar material is in a large vibration state. At this time, control the external air compressor to inject high-pressure gas into the driving cavity 602 to drive each installation piston 605 to move toward the inner hole side of the longitudinal limiting cylinder 3, so that each supporting ball 606 abuts against the surface of the steel bar material respectively, so as to transfer the vibration amount of the steel bar material to the longitudinal limiting cylinder 3, and effectively reduce the vibration under the friction energy consumption of the damping particles 603 for vibration reduction.

[0034] A vibration reduction mechanism is arranged in the longitudinal limiting cylinder 3 of the invention. When the vibration sensor 7 detects that the vibration amount formed by the rotation of the lateral material supporting roller 2 is greater than the set value V 1 At this time, it can be determined that the steel bar material is in a large vibration state. At this time, control the external air compressor to inject high-pressure gas into the driving cavity 602 to drive each installation piston 605 to move toward the inner hole side of the longitudinal limiting cylinder 3, so that each supporting ball 606 abuts against the surface of the steel bar respectively, so as to transfer the vibration amount of the steel bar to the longitudinal limiting cylinder 3, and effectively reduce the vibration under the friction energy consumption of the damping particles 603 for vibration reduction. Thereby further overcoming the vibration generated when the steel bar material leaves the magnet part 404, and further effectively ensuring the uniformity of the spraying of the steel bar surface coating.

[0035] When the vibration sensor 7 detects that the vibration amount formed by the rotation of the lateral material supporting roller 2 is less than the set value V 2 At this time, control the pressure relief valve 9 to open for pressure relief, so that the installation piston 605 is reset under the drive of the limiting spring 608. Thereby, on the premise of not affecting the uniform conveying of the steel bar material and reducing the wear amount of the supporting ball 606 and the steel bar material, effectively and practically control the vibration amount of the steel bar material within a lower range to ensure the practical effect of the invention.

[0036] The driving mechanism 403 adopts a chain conveyor, and the fixed support 402 is fixedly installed on the transmission chain of the chain conveyor through the corresponding installation rod 10.

[0037] The above are only the preferred embodiments of the invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the invention.

Claims

1. A method for spraying a coating on the surface of a steel bar based on a coating spraying device, characterized in that: The coating spraying equipment comprises: A spraying assembly (1) comprises a fixed frame (101) and a plurality of spray heads (102) fixedly mounted on the fixed frame (101); a plurality of transverse material support guide rollers (2) for supporting steel bars and at least one longitudinal limit cylinder (3) for vibration reduction are rotatably mounted side by side on the fixed frame (101) on the feeding end side of the spraying assembly (1); a gap is formed between the inner hole of the longitudinal limit cylinder (3) and the steel bar material; A feed assembly (4) comprising a support frame (401) fixedly arranged on one side of the feed end of the spray assembly (1), a plurality of corresponding fixed support members (402) being movably arranged side by side on the support frame (401), the fixed support members (402) circulating through one side of the feed end of the spray assembly (1) under the drive of a corresponding drive mechanism (403), the fixed support members (402) respectively being provided with openings for supporting steel bars facing upward, and corresponding magnet members (404) being fixedly mounted at the openings of the fixed support members (402); The spraying method of the steel bar surface coating comprises the following specific steps: S1, external feeding equipment conveys steel bar materials to the opening of a cyclically moving fixed support member (402), and the magnet member (404) at the opening of the fixed support member (402) adsorbs and fixes the steel bar materials; S2, under the drive of the driving mechanism (403), the steel bar material moves along with the fixed support member (402) toward the feeding end side of the spraying assembly (1); when the fixed support member (402) leaves the feeding end side of the spraying assembly (1), the magnet member (404) disconnects from the steel bar material, and the steel bar material continues to move toward the feeding end side of the spraying assembly (1); S3, after the steel bar material passes through the transverse material support guide roller (2), it passes through the inner hole of the longitudinal limit cylinder (3), and then enters the position of the nozzle (102) of the spraying assembly (1) for coating spraying operation. The inner hole of the longitudinal limit cylinder (3) limits the vibration amplitude of the steel bar material.

2. A method for spraying a steel bar surface coating based on a coating spraying device according to claim 1, characterized in that: The step S3 also includes a step S4, wherein the steel bar material after the coating spraying is discharged along one side of the discharge end of the spraying component (1) and discharged outwardly through the corresponding discharge component (5).

3. A method for spraying a steel bar surface coating based on a coating spraying device according to claim 2, characterized in that: The discharge assembly (5) used in the step S4 corresponds in position to the feed assembly (4) and has the same structure as the feed assembly (4).

4. A method for spraying a steel bar surface coating based on a coating spraying device according to claim 1, characterized in that: There are three nozzles (102), which are staggered and arranged on the fixed frame (101) at an equal angle of 120°, and a residual material collection hopper (103) is respectively arranged outside the discharge ends of the three nozzles (102), and the residual material collection hopper (103) is connected to the air inlet end of the external bag filter.

5. A method for spraying a coating on the surface of a steel bar based on a coating spraying device according to claim 4, characterized in that: The coating residue generated during the coating spraying operation in step S3 is collected by the residue collection hopper (103) and transmitted to an external bag filter for filtration and recovery.

6. A method for spraying a steel bar surface coating based on a coating spraying device according to claim 1, characterized in that: A corresponding vibration reduction mechanism is provided in the longitudinal limit cylinder (3), and a vibration sensor (7) for detecting the vibration amount of the transverse material support guide roller (2) is fixedly mounted on the mounting seat of the transverse material support guide roller (2) located on the front side of the longitudinal limit cylinder (3).

7. A method for spraying a steel bar surface coating based on a coating spraying device according to claim 6, characterized in that: The vibration reduction mechanism comprises a vibration reduction chamber (601) arranged at the periphery of the inner hole of the longitudinal limiting cylinder (3); a driving chamber (602) is arranged in the longitudinal limiting cylinder (3) outside the vibration reduction chamber (601); a plurality of corresponding damping particles (603) for vibration reduction are filled in the vibration reduction chamber (601); the driving chamber (602) is connected to an external air compressor via a corresponding air charging pipe (8); a pressure relief valve (9) is connected to the air charging pipe (8); a plurality of corresponding connecting pipes (602) are arranged at intervals in the vibration reduction chamber (601); 04), the inner end of the connecting tube (604) passes through the inner hole of the longitudinal limit cylinder (3), and the corresponding mounting pistons (605) are movably installed in the connecting tube (604), and the inner end surfaces of the mounting pistons (605) are rollingly installed with corresponding supporting balls (606), and the connecting tubes (604) outside the mounting pistons (605) are fixedly connected with corresponding fixing rods (607), and corresponding limit springs (608) are fixedly connected between the fixing rods (607) and the mounting pistons (605).

8. A method for spraying a coating on the surface of a steel bar based on a coating spraying device according to claim 7, characterized in that: In step S3, when the vibration sensor (7) detects that the vibration amount generated by the rotation of the transverse support guide roller (2) is greater than the set value V1, it can be determined that the steel bar material is in a state of large vibration. At this time, the external air compressor is controlled to inject high-pressure gas into the drive chamber (602) to drive each mounting piston (605) to move toward the inner hole of the longitudinal limit cylinder (3), so that each supporting ball (606) respectively abuts against the surface of the steel bar material, so as to transmit the vibration amount of the steel bar material to the longitudinal limit cylinder (3), and effectively reduce vibration under the friction energy consumption of the damping particles (603) for vibration reduction.

9. A method for spraying a coating on the surface of a steel bar based on a coating spraying device according to claim 8, characterized in that: When the vibration sensor (7) detects that the vibration amount caused by the rotation of the lateral support guide roller (2) is less than the set value V2, the pressure relief valve (9) is controlled to open and release pressure, so that the mounting piston (605) is reset under the drive of the limit spring (608).

10. A method for spraying a coating on the surface of a steel bar based on a coating spraying device according to claim 1, characterized in that: The driving mechanism (403) adopts a chain conveyor, and the fixed support member (402) is fixedly mounted on the transmission chain of the chain conveyor through a corresponding mounting rod (10).

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