Intelligent feedback vibration powder filling equipment for flux-cored wire preparation

Abstract

The utility model relates to flux-cored wire preparation intelligent feedback vibration powder filling equipment which comprises a flux-cored wire manufacturing production line, a feeding supporting platform and a hopper supporting platform. The hopper supporting platform is provided with a wall-hanging-preventing vibration discharging hopper, a hopper vibration buffering connecting device, a discharging observation pipe, an adjustable discharging device and a self-feedback discharging adjusting device from top to bottom, and the inner wall of the wall-hanging-preventing vibration discharging hopper is of a lotus leaf-imitating stretch-draw membrane structure. The wall-hanging-vibration-preventing discharging hopper is connected with the hopper supporting platform through a damping spring, a vibrator is arranged on the outer wall of the wall-hanging-vibration-preventing discharging hopper, and a discharging opening in the bottom of the wall-hanging-vibration-preventing discharging hopper is flexibly connected with the hopper vibration buffering connecting device. The powder feeding device has the advantages that the conditions that powder adheres to the wall surface, the discharging port is blocked, wall-hung powder is not prone to being poured out and the like are effectively prevented, the stirring gear at the tail end of the hopper can smash caked powder, meanwhile, uniform discharging is promoted, the discharging port is prevented from being blocked, and discharging uniformity and stability are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of powder filling for flux-cored welding wire preparation, in particular to intelligent feedback vibration powder filling equipment for flux-cored welding wire preparation. Background Art

[0002] Flux-cored submerged arc welding uses a wire containing a flux-cored material within its core. Flux-cored wire is increasingly used in high-strength steel structures, particularly in the steel rolling industry, where it plays a crucial role in the surface repair and strengthening of critical rolls. Flux-cored wire is filled with welding powder, which requires a larger mesh count and results in poor flowability.

[0003] The conventional powder filling process for flux-cored welding wire production faces resistance due to the poor fluidity of the welding powder during discharge. Powder sticks to the wall of the discharge barrel, increasing the complexity and cost of cleaning. Powder agglomeration can lead to blockage of the discharge port and uneven discharge, interrupting the production process, reducing production efficiency, and requiring time-consuming and labor-intensive cleaning and maintenance. The amount of powder discharged cannot be monitored in a timely manner, resulting in overfilling or underfilling of the flux core, uneven filling of the welding wire powder, and thus affecting the amount of powder released during welding. This uneven filling seriously affects the quality of the finished welding wire, and in turn, the quality of the flux-cored wire after submerged arc welding, resulting in insufficient uniformity and strength of the weld, which in turn affects the quality and reliability of the final product and increases the consumption of manpower, material, and financial resources.

[0004] The Chinese invention patent with patent publication number CN115121994A discloses "powder filling device, filling system, molding machine main unit, unit and production line." Although this invention can obtain the weight change of powder by reducing the weighing value to control the running speed of the powder feeder, in actual production, problems such as powder agglomeration and powder adhesion to the inner wall may be encountered. These problems may cause the filling device to operate poorly, thereby affecting overall production efficiency.

[0005] The Chinese invention patent with authorization publication number CN115255708B discloses "an anti-caking flux-cored welding wire powder feeder." Although this invention solves the problem of powder agglomeration during the powder filling process, the rotating air blast tube will also blow the powder in the hopper away, and even hang on the wall of the hopper, causing it to stick to the hopper wall. In addition, the blown powder will cause the powder feeding to be unsmooth, affecting the stability and continuity of the production process. Summary of the Invention

[0006] In order to overcome the shortcomings of the existing technology, the utility model provides an intelligent feedback vibration powder filling equipment for preparing flux-cored welding wire. Through the lotus leaf-like tensile membrane structure in the discharge hopper and the circumferentially arranged vibrators, it can effectively prevent the powder from sticking to the wall, the discharge port from being blocked, and the powder hanging on the wall from being difficult to pour out. The stirring gear of the hopper vibration damping connection device breaks up the powder to prevent agglomeration and ensure smooth discharge. The self-feedback discharge adjustment device realizes quantitative powder discharge, which can not only improve production efficiency and stability, avoid manual real-time adjustment, but also save costs, improve product quality and controllability of the production line.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A flux-cored welding wire preparation intelligent feedback vibration powder filling equipment, including a flux-cored welding wire production line, a feeding support platform and a hopper support platform. The flux-cored welding wire production line is provided with a feeding support platform, and the feeding support platform is provided with a hopper support platform. The hopper support platform is provided with an anti-wall hanging vibration lower hopper, a hopper vibration damping connection device, a discharge observation tube, an adjustable discharge device and a self-feedback discharge adjustment device from top to bottom. The inner wall of the anti-wall hanging vibration lower hopper adopts a lotus leaf-like tensile membrane structure, the anti-wall hanging vibration lower hopper is connected to the hopper support platform by a vibration-damping spring, a vibrator is provided on the outer wall of the anti-wall hanging vibration lower hopper, and the bottom discharge port of the anti-wall hanging vibration lower hopper is flexibly connected to the hopper vibration damping connection device.

[0009] Furthermore, the intelligent feedback vibration powder filling equipment for preparing flux-cored welding wire also includes a pulse dust collector, which is arranged on the opposite side of the hopper support platform, and the dust collection port is aligned with the self-feedback discharge adjustment device.

[0010] Furthermore, the hopper vibration damping connection device is composed of a feeding stirring motor, a hopper vibration damping connection device body, and a stirring gear; the feeding stirring motor is fixedly connected to the hopper vibration damping connection device body by bolts, and the stirring gear is fixedly connected to the output shaft of the feeding stirring motor.

[0011] Furthermore, the self-feedback discharging adjustment device includes a conveying belt, a weighing belt, and a pressure sensor. The conveying belt and the weighing belt are arranged in steps, and a pressure sensor is provided at the bottom of the weighing belt.

[0012] Furthermore, the transport belt is provided with a belt cleaning scraper on the return belt surface at the position of the driven roller of the transport belt, and the belt cleaning scraper is pressed against the return belt surface by a belt cleaning tensioning spring.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The lotus leaf-like tensile membrane structure on the inner wall of the hopper and the circumferentially arranged vibrators can effectively prevent powder from sticking to the wall, clogging the discharge port, and preventing the powder hanging on the wall from being difficult to pour out. During the discharge process, the stirring gear at the end of the hopper can break up the agglomerated powder, promote uniform discharge, prevent the discharge port from being blocked, and ensure the uniformity and stability of the discharge.

[0015] 2. The introduction of a self-feedback discharge adjustment device and the use of pressure sensors and motor speed feedback adjustment to achieve quantitative powder discharge can not only improve production efficiency and stability and avoid manual real-time adjustment, but also save costs, improve welding wire quality and controllability of the production line, solving industry bottlenecks. At the same time, a visual interface is added to check the powder discharge amount at any time.

[0016] 3. The belt cleaning scraper fits tightly with the transport belt, so that all the powder on the transport belt falls onto the weighing belt, reducing powder waste and lowering production costs. By adjusting the working length of the screw, the belt is always in a tensioned state, avoiding belt relaxation or slipping, reducing the occurrence of equipment failures, and effectively improving the operating efficiency of the flux-cored wire production line.

[0017] 4. Use pulse dust collector to effectively absorb flying powder, improve the air quality of the working environment and reduce the health risks of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of an intelligent feedback vibration powder filling device for preparing flux-cored welding wire described in the utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the anti-wall vibration lower hopper provided by the utility model.

[0020] Figure 3 It is a structural schematic diagram of the hopper vibration damping connection device provided by the utility model.

[0021] Figure 4 It is a structural schematic diagram of the self-feedback discharging adjustment device provided by the utility model.

[0022] Figure 5 This is a partial enlarged view of the position of the driven roller of the transport belt of the self-feedback discharging adjustment device provided by the utility model.

[0023] Figure 6 It is a PLC ladder diagram of the utility model control system.

[0024] In the figure: 1-anti-wall vibration hopper, 11-hopper, 12-vibrator, 13-vibration damping spring, 14-hopper support frame, 15-lotus leaf-like tensile membrane structure, 2-hopper support platform, 3-hopper vibration damping connection device, 31-discharging stirring motor, 32-hopper vibration damping connection device body, 33-stirring gear, 4-discharging observation tube, 5-adjustable discharge device, 6-self-feedback discharge adjustment device, 601-transport belt control motor support, 602-transport belt control motor, 603-transport belt drive roller, 604-transport belt, 605-transport belt tensioning device , 606- transport belt support, 607- bearing seat, 608- belt cleaning scraper, 609- belt cleaning tensioning spring, 610- belt cleaning scraper fixed shaft, 611- belt cleaner lateral support, 612- weighing belt, 613- screw fixing device, 614- pressure sensor, 615- weighing belt drive roller, 616- weighing belt control motor support, 617- weighing belt control motor, 618- transport belt driven roller, 619- weighing belt driven roller, 7- feeding support platform, 8- flux cored wire production line, 9- pulse dust collector. DETAILED DESCRIPTION

[0025] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-6 As shown, the working principle of an intelligent feedback vibration powder filling device for preparing flux-cored welding wire is as follows: in the powder filling of submerged arc surfacing welding, the lotus leaf-like tensile membrane structure on the inner wall of the anti-wall-hanging vibration hopper 11 and the vibrator 12 are used to make the powder discharge smoothly and not stick to the wall of the hopper 11. The bottom of the anti-wall-hanging vibration hopper 1 is flexibly connected to the hopper damping connection device 3. The stirring gear 33 at the bottom of the hopper damping connection device 3 breaks up the agglomerated powder and promotes uniform discharge, prevents the discharge port from being blocked, and ensures uniform and stable discharge. A self-feedback discharge adjustment device 6 with a pressure sensor 614 is adopted, and a control system is used to convert the electrical signal of the powder weight transmitted by the pressure sensor 614 into a control signal for controlling the speed of the weighing belt control motor 617. The powder filling amount is controlled by the change in motor speed, thereby realizing quantitative powder discharge, uniform powder filling, high efficiency, and good welding wire quality.

[0027] like Figures 1-6As shown, an intelligent feedback vibration powder filling equipment for preparing flux-cored welding wire includes an anti-wall hanging vibration hopper 1, a hopper support platform 2, a hopper vibration damping connection device 3, a discharge observation tube 4, an adjustable discharge device 5, a self-feedback discharge adjustment device 6, a feeding support platform 7, a flux-cored welding wire production line 8, and a pulse dust collector 9. The hopper support platform 2 and the feeding support platform 7 are fixedly connected by bolts to support and protect the equipment as a whole; the anti-wall hanging vibration hopper 1 and the hopper support platform 2 are connected by a vibration damping spring 13 to buffer the vibration effect generated by the vibrator 12, and the discharge port of the anti-wall hanging vibration hopper 1 is flexibly connected to the upper end of the hopper vibration damping connection device 3, and the flexible connection is resistant to high-frequency vibration of the anti-wall hanging The material discharge vibration of the vibrating hopper 1 plays a buffering role, and the lower end of the hopper vibration damping connection device 3 is fixedly connected to the hopper support platform 2 by bolts; the upper end of the material discharge observation tube 4 is fixedly connected to the lower end of the hopper vibration damping connection device 3, and the material discharge observation tube 4 can view the material discharge status in real time; the upper end of the adjustable discharge device 5 is fixedly connected to the lower end of the material discharge observation tube 4, and the lower end is fixedly connected to the self-feedback discharge adjustment device 6 by bolts. The adjustable discharge device 5 can adjust the opening of the discharge port to adjust the discharge flow rate, so that the powder material is discharged evenly and falls on the self-feedback discharge adjustment device 6. The feeding amount of the powder material can also be adjusted according to the amount of welding wire filler to prevent the powder material from accumulating on the transport belt 604 of the self-feedback discharge adjustment device 6, avoiding To avoid powder blockage; the lower end of the self-feedback discharge adjustment device 6 is fixedly connected to the feeding support platform 7 by bolts; the base of the feeding support platform 7 is fixedly connected to the flux-cored welding wire production line 8 by bolts, and the inner wall of the anti-wall vibration lower hopper 1 is a lotus leaf-like tensile membrane structure 15. The lotus leaf-like tensile membrane structure 15 utilizes the special roughness and micro-nano structure of the imitation lotus leaf to make it have super-slip properties, and directly prepares low-cost, high-efficiency, green low-adhesion, bionic super-hydrophobic sample surface. The design of the entire lotus leaf-like tensile membrane structure 15 is based on the micron-level papillary structure and nano-level nanorod structure on the surface of the lotus leaf biological sample to form a regular convex structure. The powder passes through the bucket wall of the anti-wall vibration lower hopper 1 (like water droplets) The anti-wall hanging vibration lower hopper 1 includes a hopper 11, a vibrator 12, a shock-absorbing spring 13, and a hopper support frame 14. The vibrator 12 is arranged on the outer wall of the anti-wall hanging vibration lower hopper 1, and the hopper 11 and the vibrator 12 are fixedly connected by bolts; the shock-absorbing spring 13 is fixedly connected to the hopper 11; the hopper support frame 14 is fixedly connected to the hopper 11; under the coordination of the high-frequency vibration of the vibrator 12 and the imitation lotus leaf tensile membrane structure, the flux core powder in the anti-wall hanging vibration lower hopper 1 falls smoothly onto the self-feedback discharge adjustment device 6, which effectively prevents powder blockage and wall hanging during the production process of flux-cored welding wire, and improves the wire making efficiency and the uniformity of powder filling.

[0028] like Figure 1As shown, further, the intelligent feedback vibration powder filling equipment for preparing flux-cored welding wire also includes a pulse dust collector 9, which is arranged on the opposite side of the hopper support platform 2, and the dust collecting port is aligned with the self-feedback discharge adjustment device 6 to collect metal droplets.

[0029] like Figure 4 As shown, further, the hopper vibration damping connection device 3 is composed of a feeding and stirring motor 31, a hopper vibration damping connection device body 32, and a stirring gear 33; the feeding and stirring motor 31 is fixedly connected to the hopper vibration damping connection device body 32 by bolts, and the stirring gear 33 is fixedly connected to the output shaft of the feeding and stirring motor 31. The hopper vibration damping connection device 3 can break up the agglomerated powder, and at the same time promote uniform feeding, prevent the discharge port from being blocked, and ensure the uniformity and stability of feeding.

[0030] like Figure 5As shown, further, the self-feedback discharging adjustment device 6 includes a conveyor belt 604, a weighing belt 612, and a pressure sensor 614. The conveyor belt 604 includes a conveyor belt control motor support 601, a conveyor belt control motor 602, a conveyor belt drive roller 603, a conveyor belt 604, a conveyor belt tensioning device 605, a conveyor belt support 606, a bearing seat 607, and a conveyor belt driven roller 618. The conveyor belt control motor 602 is fixedly connected to the conveyor belt control motor support 601 by bolts, and the conveyor belt control motor 602 is connected to the conveyor belt drive roller 603 by a coupling; the conveyor belt drive roller 603, the conveyor belt The conveyor belt driven roller 618 fits tightly with the conveyor belt 604; the bearing seat 607 is fixedly connected to the conveyor belt driven roller 618; the bearing seat 607 is fixedly connected to the conveyor belt tensioning device 605 by bolts. When the conveyor belt 604 is too loose, the conveyor belt 604 can be tightened by adjusting the length of the screw working distance of the conveyor belt tensioning device 605; the weighing belt 612 includes a weighing belt 612, a screw fixing device 613, a weighing belt transmission roller 615, a weighing belt control motor support 616, a weighing belt control motor 617, a weighing belt driven roller 619, a weighing belt control motor 617 and a weighing belt control motor support 616. The weighing belt 612 is fixedly connected by bolts; the weighing belt control motor 617 is connected to the weighing belt drive roller 615 through a coupling; the weighing belt drive roller 615 and the weighing belt driven roller 619 are tightly fitted with the weighing belt 612; the weighing belt driven roller 619 is fixedly connected to the screw fixing device 613, and the weighing belt 612 can be put in a tensioned state by adjusting the screw working length of the screw fixing device 613. The transport belt 604 and the weighing belt 612 are arranged in steps, and a pressure sensor 614 is set at the bottom of the weighing belt 612. The pressure sensor 614 is respectively located at the bottom end of the weighing belt control motor support 616 and the screw fixing device 613. The pressure sensor 614 will The weight of the powder falling onto the weighing belt 612 is measured in real time, and the instantaneous amount of powder dropped is displayed on the control system display. The pressure sensor 614 outputs an electrical signal and transmits it to the control system. The control system compares the transmitted electrical signal with a predetermined set value to determine whether there is a deviation. When the measured signal is greater than the set value, the internal regulator will reduce the current and voltage of the weighing belt control motor 617, causing its speed to drop. The amount of material fed into the weighing belt 612 will decrease until the measured value is equal to the set value, the system reaches equilibrium, and the adjustment process is completed. Conversely, the above process will change in the opposite direction, so that the belt speed is automatically adjusted according to the set feed amount to keep the powder flow constant at the set value.The conveyor belt 604 is provided with a belt cleaning scraper 608 on the return belt surface at the position of the conveyor belt driven roller 618. The belt cleaning scraper 608 is pressed against the return belt surface by the belt cleaning tensioning spring 609. The belt cleaning scraper 608 includes a belt cleaning scraper 608, a belt cleaning tensioning spring 609, a belt cleaning scraper fixed shaft 610, and a belt cleaning transverse support 611. The front end of the belt cleaning scraper 608 is in close contact with the return belt surface of the conveyor belt 604. The belt cleaning scraper 608 is pressed against the return belt surface of the conveyor belt 604 by the belt cleaning tensioning spring 609. 8 is fixedly connected to the belt cleaning scraper fixed shaft 610. The belt cleaning scraper fixed shaft 610 is fixed to the front side of the conveyor belt 604 via the belt cleaning transverse support 611. The belt cleaning tensioning spring 609 is always in contact with the belt cleaning transverse support 611. The purpose of the belt cleaning tensioning spring 609 is to provide a spring force to the belt cleaning scraper fixed shaft 610, so that the front end of the belt cleaning scraper 608 is always in close contact with the conveyor belt 604, allowing all powder on the conveyor belt 604 to fall onto the weighing belt 612.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent feedback vibration powder filling device for preparing flux-cored welding wire, comprising a flux-cored welding wire production line, a feeding support platform and a hopper support platform, wherein the feeding support platform is arranged on the flux-cored welding wire production line, and the hopper support platform is arranged on the feeding support platform, characterized in that: The hopper support platform is provided with an anti-wall vibration lower hopper, a hopper vibration damping connection device, a material discharge observation tube, an adjustable discharge device and a self-feedback discharge adjustment device from top to bottom. The inner wall of the anti-wall vibration lower hopper adopts a lotus leaf-like tensile membrane structure. The anti-wall vibration lower hopper is connected to the hopper support platform through a vibration-damping spring. A vibrator is provided on the outer wall of the anti-wall vibration lower hopper. The bottom discharge port of the anti-wall vibration lower hopper is flexibly connected to the hopper vibration damping connection device.

2. The intelligent feedback vibration powder filling device for preparing flux-cored welding wire according to claim 1, characterized in that: The intelligent feedback vibration powder filling equipment for preparing flux-cored welding wire also includes a pulse dust collector, which is arranged on the opposite side of the hopper support platform, and the dust collecting port is aligned with the self-feedback discharge adjustment device.

3. The intelligent feedback vibration powder filling device for preparing flux-cored welding wire according to claim 1, characterized in that: The hopper vibration damping connection device is composed of a feeding stirring motor, a hopper vibration damping connection device body, and a stirring gear; the feeding stirring motor is fixedly connected to the hopper vibration damping connection device body by bolts, and the stirring gear is fixedly connected to the output shaft of the feeding stirring motor.

4. The intelligent feedback vibration powder filling device for preparing flux-cored welding wire according to claim 1, characterized in that: The self-feedback discharging adjustment device comprises a conveying belt, a weighing belt and a pressure sensor. The conveying belt and the weighing belt are arranged in steps, and a pressure sensor is arranged at the bottom of the weighing belt.

5. The intelligent feedback vibration powder filling device for preparing flux-cored welding wire according to claim 4, characterized in that: The conveyor belt is provided with a belt cleaning scraper on the return belt surface at the position of the conveyor belt driven roller, and the belt cleaning scraper is pressed against the return belt surface by a belt cleaning tensioning spring.

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