A conveying device for steel structure coating

Abstract

The application discloses a kind of steel structure coating conveying equipment, it belongs to the field of coating conveying. Including main body frame, the lower end right side of the main body frame is welded with fixed ring, the inside of the fixed ring is rotatably connected with rotating shaft, the front and rear ends of the rotating shaft are installed with gyro wheel, the left end upper side of the main body frame is installed with high-pressure plunger pump, the feed end of the high-pressure plunger pump is provided with feeding mechanism.The beneficial effects of the application are to provide a kind of steel structure coating conveying equipment, by setting up feeding mechanism, in the process of high-pressure plunger pump pumping coating, synchronous motor drives stirring assembly to stir coating in feeding hopper, while electric heating rod heats coating, can effectively reduce the viscosity of high-viscosity coating, solve the problem of low suction efficiency of traditional equipment to high-viscosity coating, ensure that coating is continuously, smoothly pumped, reduce the construction interruption caused by " material break ", guarantee coating uniformity.

Description

Technical Field

[0001] This application relates to the field of paint conveying, and more specifically, to a paint conveying device for steel structures. Background Technology

[0002] In the fields of industrial production and infrastructure construction, steel structures are widely used in factories, bridges, wind turbine towers, and offshore platforms due to their advantages such as high strength, high stability, and ease of construction. However, steel structures are exposed to complex environments such as the atmosphere, water, and chemical media for extended periods, making them susceptible to corrosion or loss of load-bearing capacity due to high temperatures in fires. Therefore, protection is achieved through the application of functional coatings such as anti-corrosion and fire-retardant coatings. The uniformity and density of the coating directly determine the service life and safety performance of the steel structure.

[0003] Currently, for steel structure coating spraying, especially for scenarios requiring large-area, thick coatings, high-pressure airless sprayers have become the mainstream construction equipment due to their advantages such as superior atomization effect, strong coating adhesion, and high coating utilization rate.

[0004] The structure of the high-pressure airless sprayer can refer to the existing RR-6000B high-pressure airless sprayer. The paint is drawn from the storage container by a high-pressure plunger pump, and the reciprocating motion of the plunger generates high pressure. It is then delivered to the spray gun through a high-pressure hose. The nozzle atomizes the high-pressure paint instantly and evenly adheres to the surface of the steel structure to form a continuous protective coating.

[0005] However, due to the high viscosity of high-viscosity coatings such as non-expanding thick-film fireproof coatings or heavy-duty anti-corrosion coatings containing glass flakes, the paint suction end of high-pressure airless sprayers is usually inserted directly into the paint tank through a single suction pipe, relying on the negative pressure generated by the reciprocating motion of the plunger to achieve paint suction. High-viscosity coatings have poor flowability and high internal friction, making it difficult to quickly fill the suction chamber of the plunger pump under negative pressure, resulting in suction efficiency lower than normal. When the discharge rate of the plunger pump exceeds the suction rate, "cavitation" easily forms within the pump body, causing a "paint interruption" phenomenon. This means that the paint delivery is suddenly interrupted during spraying, and no paint is sprayed from the spray gun. The machine must be stopped to purge the air from the pump before restarting. A single paint interruption will cause construction interruption, not only reducing construction efficiency but also forming coating breaks on the steel structure surface, requiring subsequent recoating and increasing construction costs.

[0006] Currently, there is no coating conveying equipment for steel structures that can accelerate the flow of coating at the suction pipe. Utility Model Content

[0007] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0008] The purpose of this application is to address the shortcomings of existing technologies by providing a coating delivery device for steel structures. This device solves the problem that high-viscosity coatings have poor flowability and high internal friction, making it difficult to quickly fill the suction chamber of a plunger pump under negative pressure, resulting in lower-than-normal suction efficiency. When the discharge rate of the plunger pump exceeds the suction rate, cavitation easily forms within the pump body, causing a "coating interruption" phenomenon. This means that the coating delivery is suddenly interrupted during spraying, resulting in no coating being sprayed from the spray gun. The machine must be stopped to purge the air from the pump before restarting. A single coating interruption leads to construction interruption, not only reducing construction efficiency but also creating coating breaks on the steel structure surface, requiring subsequent recoating and increasing construction costs.

[0009] To achieve the above objectives, this application provides the following technical solution:

[0010] A steel structure coating conveying device includes a main frame. A fixing ring is welded to the lower right side of the main frame. A rotating shaft is rotatably connected to the inner side of the fixing ring. Rollers are installed at both ends of the rotating shaft. A high-pressure plunger pump is installed above the left end of the main frame. A feeding mechanism is provided at the inlet end of the high-pressure plunger pump, and a discharge mechanism is provided at the output end of the high-pressure plunger pump. The feeding mechanism includes a feeding pipe installed at the inlet end of the high-pressure plunger pump. A feeding hopper is fixedly connected to the other end of the feeding pipe. Electric heating rods are installed at equal intervals on the side of the feeding hopper away from the feeding pipe. A circular plate is installed at the other end of the electric heating rods. A motor is installed on the other side of the circular plate. An outer protective frame is connected to the edge of the circular plate away from the electric heating rods. Bolts are connected to the inner edge of the circular plate. A stirring shaft is fixedly connected to the output shaft end of the motor. Stirring blades are fixedly connected at equal intervals on the outer side of the stirring shaft. A rubber ring is connected inside the circular plate.

[0011] Furthermore, the discharge mechanism includes a conveying pipe installed at the output end of the high-pressure plunger pump, and a spray gun for spraying coating on the surface of the steel structure workpiece is installed at the other end of the conveying pipe. A support frame is welded to the upper left end of the main frame, and an inverted U-shaped frame is welded to the front of the upper end of the support frame. Round shafts are welded to the upper and lower ends of the inner side of the inverted U-shaped frame. A lower limit wheel is provided at the lower inner side of the inverted U-shaped frame, and an upper limit wheel is provided at the upper inner side of the inverted U-shaped frame. A threaded rod is connected to the upper inside of the inverted U-shaped frame, and a rotating handle is welded to the upper end of the threaded rod.

[0012] Furthermore, the two rollers at the front and rear ends of the rotating shaft are slidably connected on one side to the two fixed rings at the front and rear ends of the main frame.

[0013] Furthermore, the inner edge of the circular plate has equally spaced circular holes, and the inner end of the outer protective frame near the circular plate has equally spaced threaded grooves. The outer side of the bolt is slidably connected to the inner side of the circular hole, and the outer side of the bolt is threadedly connected to the inner side of the threaded groove. The outer side of the bolt head abuts against the side of the circular plate away from the outer protective frame.

[0014] Furthermore, a rotating hole is provided at the middle position inside the circular plate, the rubber ring is attached to the inner side of the rotating hole, and the outer side of the motor's output shaft is slidably connected to the inner side of the rubber ring.

[0015] Furthermore, the outer side of the circular shaft at the lower inner end of the inverted U-shaped frame is rotatably connected to the inner side of the lower limit wheel, the outer side of the circular shaft at the upper inner end of the inverted U-shaped frame is rotatably connected to the inner side of the upper limit wheel, and the front and rear sides of the lower limit wheel and the upper limit wheel are slidably connected to the front and rear ends of the inner side of the inverted U-shaped frame.

[0016] Furthermore, the material conveying pipe is spirally placed on the upper outer side of the support frame, and the outer circumferential surfaces of the lower limit wheel and the upper limit wheel are provided with conveying grooves, and the outer side of the material conveying pipe is tumblingly connected to the inner side of the conveying groove.

[0017] Furthermore, a threaded hole is provided at the middle position of the upper end of the inverted U-shaped frame, the outer side of the threaded rod is threadedly connected to the inner side of the threaded hole, and the lower end of the threaded rod abuts against the upper outer side of the upper limit wheel.

[0018] The beneficial effects of this application are as follows: by setting up a feeding mechanism, during the process of high-pressure plunger pumping the coating, the synchronous motor drives the stirring component to stir the coating in the feeding hopper, and at the same time the electric heating rod heats the coating, which can effectively reduce the viscosity of high-viscosity coatings, solve the problem of low suction efficiency of high-viscosity coatings in traditional equipment, ensure that the coating is continuously and smoothly sucked, reduce construction interruptions caused by "material shortage", and ensure coating uniformity.

[0019] By setting up a discharge mechanism, excess material conveying pipes can be suspended on the support frame, and the upper limit wheel can be fixed by the threaded rod, thereby fixing the material conveying pipes and preventing them from dragging on the ground and causing wear and damage, thus extending their service life. At the same time, it reduces paint leakage and waste caused by pipeline damage, and improves construction safety and economy. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0021] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0022] In the attached diagram:

[0023] Figure 1 This is a schematic diagram of the main structure of this application;

[0024] Figure 2 This is a schematic diagram of the feeding mechanism in this application;

[0025] Figure 3 This is a schematic diagram of the material discharge mechanism in this application;

[0026] Figure 4 This is a schematic diagram of the internal structure of the inverted U-shaped frame in this application.

[0027] Figure label:

[0028] 1. Main frame; 2. Fixing ring; 3. Rotating shaft; 4. Roller; 5. High-pressure plunger pump; 601. Feed pipe; 602. Feed hopper; 603. Electric heating rod; 604. Circular plate; 605. Motor; 606. Outer protective frame; 607. Bolt; 608. Stirring shaft; 609. Stirring blade; 610. Rubber ring; 701. Conveying pipe; 702. Spray gun; 703. Support frame; 704. Inverted U-shaped frame; 705. Round shaft; 706. Lower limit wheel; 707. Upper limit wheel; 708. Threaded rod; 709. Rotating handle. Detailed Implementation

[0029] The following is a detailed description of a steel structure coating conveying device provided in this application, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this application.

[0030] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0031] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0032] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] Reference Figure 1 and Figure 2 As shown, this utility model provides a steel structure coating conveying device, including a main frame 1. A fixing ring 2 is welded to the lower right side of the main frame 1. A rotating shaft 3 is rotatably connected to the inner side of the fixing ring 2. Rollers 4 are installed at the front and rear ends of the rotating shaft 3. The two adjacent sides of the two rollers 4 at the front and rear ends of the rotating shaft 3 are slidably connected to the sides of the two fixing rings 2 at the front and rear ends of the main frame 1, which are separated from each other. This allows the rollers 4 to be stably positioned at the lower end of the main frame 1 for rotation.

[0034] A high-pressure plunger pump 5 is installed on the upper left side of the main frame 1. A feeding mechanism is provided at the feed end of the high-pressure plunger pump 5. The feeding mechanism includes a feed pipe 601 installed at the feed end of the high-pressure plunger pump 5. A feed hopper 602 is fixedly connected to the other end of the feed pipe 601. Electric heating rods 603 are installed at equal intervals on the side of the feed hopper 602 away from the feed pipe 601. A circular plate 604 is installed at the other end of the electric heating rods 603. A motor 605 is installed on the other side of the circular plate 604. The circular plate 604 is located away from... An outer protective frame 606 is connected to one edge of the electric heating rod 603. A bolt 607 is connected to the inner edge of the circular plate 604. Circular holes are evenly spaced along the inner edge of the circular plate 604. Threaded grooves are evenly spaced along the inner end of the outer protective frame 606 near the circular plate 604. The outer side of the bolt 607 is slidably connected to the inner side of the circular hole, and the outer side of the bolt 607 is threadedly connected to the inner side of the threaded groove. The outer side of the bolt head abuts against the side of the circular plate 604 away from the outer protective frame 606. The bolt 607, along with the circular holes and threaded grooves, allows for a detachable connection between the circular plate 604 and the outer protective frame 606, facilitating the inspection or replacement of the stirring assembly and electric heating rod 603 inside the feed hopper 602.

[0035] In addition, a stirring shaft 608 is fixedly connected to the output shaft of motor 605, and stirring blades 609 are fixedly connected at equal intervals to the outer side of stirring shaft 608. A rubber ring 610 is connected inside circular plate 604. A rotating hole is opened in the middle of the interior of circular plate 604, and rubber ring 610 is attached to the inner side of rotating hole. The outer side of output shaft of motor 605 is slidably connected to the inner side of rubber ring 610. Rubber ring 610 seals the gap between output shaft of motor 605 and rotating hole to prevent high-viscosity paint from leaking from the gap, avoiding paint waste and equipment contamination. On the other hand, the elastic cushioning effect of rubber reduces the vibration of motor 605 during operation from being transmitted to circular plate 604 and feed hopper 602, preventing paint splashing or loosening of feed hopper 602 due to vibration, and ensuring the stability of stirring and heating processes.

[0036] Cooperate Figure 3 and use Figure 4As shown, the output end of the high-pressure plunger pump 5 is equipped with a discharge mechanism, which includes a conveying pipe 701 installed at the output end of the high-pressure plunger pump 5. A spray gun 702 for spraying coating on the surface of the steel structure workpiece is installed at the other end of the conveying pipe 701. A support frame 703 is welded to the upper left end of the main frame 1. An inverted U-shaped frame 704 is welded to the front of the upper end of the support frame 703. Round shafts 705 are welded to the upper and lower ends of the inner side of the inverted U-shaped frame 704. A lower limit wheel 706 is provided at the lower inner end of the 4, and an upper limit wheel 707 is provided at the upper inner end of the inverted U-shaped frame 704. The outer side of the round shaft 705 at the lower inner end of the inverted U-shaped frame 704 is rotatably connected to the inner side of the lower limit wheel 706, and the outer side of the round shaft 705 at the upper inner end of the inverted U-shaped frame 704 is rotatably connected to the inner side of the upper limit wheel 707. The front and rear sides of the lower limit wheel 706 and the upper limit wheel 707 are slidably connected to the front and rear ends of the inner side of the inverted U-shaped frame 704.

[0037] The feed pipe 701 is spirally positioned on the upper outer side of the support frame 703. The lower limit wheel 706 and the upper limit wheel 707 have conveying grooves on their outer circumferential surfaces, and the outer side of the feed pipe 701 is tumblingly connected to the inner side of the conveying grooves. The spiral placement of the feed pipe 701 on the support frame 703 allows for the orderly storage of excess pipes, preventing tangled and messy connections. The conveying grooves of the limit wheels fit snugly against the outer side of the feed pipe 701, enhancing stability and reducing frictional damage between the feed pipe 701 and the limit wheels through rolling contact.

[0038] In addition, a threaded rod 708 is connected to the upper part of the inside of the inverted U-shaped frame 704. A rotating handle 709 is welded to the upper end of the threaded rod 708. A threaded hole is opened at the middle position of the upper end of the inverted U-shaped frame 704. The outer side of the threaded rod 708 is threadedly connected to the inner side of the threaded hole, and the lower end of the threaded rod 708 abuts against the upper outer side of the upper limit wheel 707. The clamping tightness of the feed tube 701 can be easily controlled by rotating the handle 709, ensuring that the feed tube 701 is firmly fixed.

[0039] Working Principle: This steel structure coating conveying equipment, when spraying coatings on steel structure workpieces, first places the feed hopper 602 into a high-viscosity coating tank, then starts the high-pressure plunger pump 5 to draw in the coating. Simultaneously, the motor 605 and electric heating rod 603 are turned on. The electric heating rod 603 directly heats the coating in the feed hopper 602, utilizing the characteristic of lowering coating viscosity with increased temperature to improve the flowability of the high-viscosity coating. The motor 605 drives the stirring shaft 608 and stirring blades 609 to rotate, thoroughly stirring the heated coating. This ensures uniform heating of the coating, preventing localized overheating that could affect performance, and breaks down the internal agglomeration structure of the coating, further reducing viscosity and preventing pigment and filler sedimentation, ensuring uniform coating composition. After heating and stirring, the coating's flowability is significantly improved, allowing it to be continuously and smoothly drawn into the pump body through the feed pipe 601 by the high-pressure plunger pump 5, then into the delivery pipe 701, and finally sprayed from the spray gun 702 onto the surface of the steel structure workpiece.

[0040] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

[0041] It should be noted that this application covers any alternatives, modifications, equivalent methods, and solutions made within the spirit and scope of this application. To provide the public with a thorough understanding of this application, specific details are described in detail in the preferred embodiments, while those skilled in the art can fully understand this application without these details. Furthermore, to avoid unnecessary confusion regarding the substance of this application, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0042] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A conveying device for steel construction coating, comprising a main frame (1) : characterized in that: A fixing ring (2) is welded to the lower right side of the main frame (1). A rotating shaft (3) is rotatably connected to the inner side of the fixing ring (2). Rollers (4) are installed at the front and rear ends of the rotating shaft (3). A high-pressure plunger pump (5) is installed above the left end of the main frame (1). A feeding mechanism is provided at the feed end of the high-pressure plunger pump (5), and a discharge mechanism is provided at the output end of the high-pressure plunger pump (5). The feeding mechanism includes a feed pipe (601) installed at the feed end of the high-pressure plunger pump (5). A feed hopper (602) is fixedly connected to the other end of the feed pipe (601). The feed hopper (602) is far away from the feed pipe (601). Electric heating rods (603) are installed at equal intervals on one side. A circular plate (604) is installed at the other end of the electric heating rods (603). A motor (605) is installed on the other side of the circular plate (604). An outer protective frame (606) is connected to the edge of the circular plate (604) away from the electric heating rods (603). Bolts (607) are connected to the inner edge of the circular plate (604). A stirring shaft (608) is fixedly connected to the output shaft end of the motor (605). Stirring blades (609) are fixedly connected at equal intervals on the outer side of the stirring shaft (608). A rubber ring (610) is connected inside the circular plate (604).

2. The steel structural coating delivery apparatus of claim 1, wherein: The discharge mechanism includes a conveying pipe (701) installed at the output end of the high-pressure plunger pump (5). The other end of the conveying pipe (701) is equipped with a spray gun (702) for spraying the surface of the steel structure workpiece. A support frame (703) is welded to the upper left end of the main frame (1). An inverted U-shaped frame (704) is welded to the front of the upper end of the support frame (703). A round shaft (705) is welded to the upper and lower ends of the inner side of the inverted U-shaped frame (704). A lower limit wheel (706) is provided at the lower inner side of the inverted U-shaped frame (704). An upper limit wheel (707) is provided at the upper inner side of the inverted U-shaped frame (704). A threaded rod (708) is connected to the upper inside of the inverted U-shaped frame (704). A rotating handle (709) is welded to the upper end of the threaded rod (708).

3. The steel structure coating conveying equipment according to claim 1, characterized in that: The two rollers (4) at the front and rear ends of the rotating shaft (3) are slidably connected on the side adjacent to the two fixed rings (2) at the front and rear ends below the main frame (1).

4. The steel structural coating delivery apparatus of claim 1, wherein: The inner edge of the circular plate (604) has equally spaced circular holes. The inner end of the outer protective frame (606) near the circular plate (604) has equally spaced threaded grooves. The outer side of the bolt (607) is slidably connected to the inner side of the circular hole. The outer side of the bolt (607) is threadedly connected to the inner side of the threaded groove. The outer side of the bolt head (607) abuts against the side of the circular plate (604) away from the outer protective frame (606).

5. The steel construction coating delivery apparatus according to claim 1, wherein: A rotating hole is provided in the middle of the interior of the circular plate (604), and the rubber ring (610) is attached to the inner side of the rotating hole. The outer side of the output shaft of the motor (605) is slidably connected to the inner side of the rubber ring (610).

6. The steel construction coating delivery apparatus according to claim 2, wherein: The outer side of the circular shaft (705) at the lower inner end of the inverted U-shaped frame (704) is rotatably connected to the inner side of the lower limit wheel (706), the outer side of the circular shaft (705) at the upper inner end of the inverted U-shaped frame (704) is rotatably connected to the inner side of the upper limit wheel (707), and the front and rear sides of the lower limit wheel (706) and the upper limit wheel (707) are slidably connected to the front and rear ends of the inner side of the inverted U-shaped frame (704).

7. The steel construction coating delivery apparatus according to claim 2, wherein: The material conveying pipe (701) is spirally placed on the upper outer side of the support frame (703). The outer circumferential surfaces of the lower limit wheel (706) and the upper limit wheel (707) are provided with conveying grooves. The outer side of the material conveying pipe (701) is tumblingly connected to the inner side of the conveying groove.

8. The steel structure coating conveying equipment according to claim 2, characterized in that: A threaded hole is provided at the middle position of the upper end of the inverted U-shaped frame (704). The outer side of the threaded rod (708) is threadedly connected to the inner side of the threaded hole. The lower end of the threaded rod (708) abuts against the upper outer side of the upper limit wheel (707).

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