Color ring coating device capable of improving quality in all directions
By using an inclined lifting and rotating wheel set and a limiting mechanism in the color painting ring device, the problem of contact between the rotating roller and the undried paint is solved, the fixation and precise spraying of the steel pipe end are achieved, the paint scratches and uneven spraying are reduced, and the product quality is improved.
Patent Information
- Application Number
- CN202422587213.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-25
AI Technical Summary
In the existing color ring device, during the steel pipe painting process, the rotating roller comes into contact with the undried paint, causing the paint film to be scratched and fall off, affecting the product quality and appearance. In addition, the axial movement of the steel pipe during rotation causes uneven spraying of the color ring.
The tilted lifting and rotating wheel set and limiting mechanism are adopted. The lifting and rotating movement of the wheel set is combined with the limiting mechanism to position the end of the steel pipe, reduce the contact area and achieve precise spraying. The non-contact sensor is used to detect the length of the steel pipe to control the working combination of the wheel set.
It effectively reduces paint scratches, ensures the fixation of the steel pipe ends, achieves accurate spraying of color ring paint, reduces scratches on the steel pipe surface, and improves product quality and appearance.
Smart Images
Figure CN223367265U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a color coating ring device capable of comprehensively improving quality, and belongs to the technical field of metallurgical industry. Background Art
[0002] One painting process in a seamless steel pipe processing line involves painting the pipe body, drying it, applying the color ring, and then painting the coupling. After painting the pipe body, the pipe is conveyed on a chain bed to the color ring painting station. Due to the short drying time, the paint film on the pipe body is only surface-dry and easily scratched and peeled. The equipment operation for the color ring painting process is as follows: the pipe is conveyed to the color ring painting station, the rotating rollers rise and rotate, the color ring is sprayed, the rotating rollers stop and lower, the pipe is removed, and the next pipe enters the color ring painting station.
[0003] Figure 1 This is the original design drawing of the color ring painting station. In this drawing, except for the color ring painting machine which is the main machine, the rest are auxiliary machines. Figure 2 yes Figure 1 Outline drawing of the center pair of wheels.
[0004] Current color ring devices have the following problems:
[0005] (1) When the rotating rollers lift up and start to rotate, the paint on the pipe body is not completely dry, and the rotating rollers squeeze the pipe body surface, causing the paint film to scratch and fall off. This causes the product's rust prevention to fail to meet the requirements and seriously affects the product's appearance quality. Paint scratches are a quality difficulty in the industry and often lead to quality objections due to this problem.
[0006] (2) The contact surface between the rotating roller and the steel pipe is a cylindrical surface with a large contact surface; the paint scratching area is large;
[0007] (3) Steel pipes within the API standard length range require 3 or 4 groups of wheels to support them; the steel pipes have more contact areas, and the paint scratching range increases accordingly.
[0008] (4) During the rotation of the rotating roller, the steel pipe will move to a certain extent along its axial direction, affecting the spraying quality of the color ring and causing the color ring to appear as a non-full spiral. Utility Model Content
[0009] The technical problem to be solved by the present invention is to provide a color ring device with all-round quality improvement for the above-mentioned existing technology, which can not only realize axial movement of the steel pipe in one direction, but also block the end of the steel pipe after movement, so that the end of the steel pipe stops at a fixed position, thereby realizing accurate spraying of color ring paint; reducing the contact area between the wheel and the steel pipe, and reducing paint scratches.
[0010] The technical solution adopted by the present invention to solve the above-mentioned problems is: a coloring ring device with all-round quality improvement, including a coloring ring machine, a plurality of evenly spaced cooling beds are provided on the side of the coloring ring machine, steel pipes are provided on the cooling beds, and a lifting and rotating wheel group is provided between two adjacent cooling beds, and the lifting and rotating wheel groups are all arranged obliquely; any of the lifting and rotating wheel groups includes a wheel mounting seat, and the wheel mounting seat is provided with two oppositely arranged wheels to form a wheel group; the wheel mounting seat is driven to perform lifting movement, driving the wheel group to move synchronously; the coloring ring machine is provided with a coloring ring station, and a limiting mechanism is provided on the coloring ring station, and the steel pipe is sent to the coloring ring station through the cooling bed, and the two lifting and rotating wheel groups rise synchronously to lift the steel pipe and drive it to rotate; the end of the steel pipe abuts against the limiting mechanism, thereby limiting the end of the steel pipe.
[0011] The horizontal angle between any of the lifting and rotating wheel sets and the center line of the steel pipe is 1 to 3 degrees.
[0012] The limiting mechanism includes a limiting seat, a vertically arranged limiting shaft is provided on the limiting seat, a limiting roller is sleeved on the limiting shaft, a bearing is provided between the limiting roller and the limiting shaft, an end plate is provided on the top of the limiting roller, and the end plate is fixed on the limiting shaft.
[0013] The outer contour surface of the pair of wheels is an arc structure.
[0014] A non-contact sensor is also provided, and the non-contact sensor detects the length of the steel pipe.
[0015] Compared with the existing technology, the advantages of the utility model are: a color ring device that improves the quality in all directions, which can not only realize the axial movement of the steel pipe in one direction, but also block the end of the steel pipe after the movement, so that the end of the steel pipe stops at a fixed position, thereby realizing the precise spraying of the color ring paint; reducing the contact area between the wheel and the steel pipe, and reducing paint scratches. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is the original design drawing of the color ring station;
[0017] Figure 2 for Figure 1 Outline drawing of the center pair of wheels;
[0018] Figure 3 This is a schematic diagram of a color-coated ring device for improving quality in all directions according to an embodiment of the present utility model;
[0019] Figure 4 for Figure 3 Outline drawing of the middle lifting and rotating pair of wheels;
[0020] Figure 5 Schematic diagram of the limiting mechanism;
[0021] In the figure, 1 is the color ring coating machine, 2 is the limiting mechanism, 2.1 is the limiting seat, 2.2 is the limiting roller, 2.3 is the bearing, 2.4 is the limiting shaft, 2.5 is the end plate, 3 is the steel pipe, 4 is the cooling bed, 5 is the wheel mounting seat, 6 is the wheel pair, and 7 is the motor. DETAILED DESCRIPTION
[0022] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
[0023] like Figure 3 As shown in the figure, a coloring ring device for comprehensively improving quality in this embodiment includes a coloring ring machine 1 with four evenly spaced cooling beds 4 on its side, and a steel pipe 3 mounted on the cooling beds 4. Between adjacent cooling beds 4 are mounted lifting and rotating wheel units: a first lifting and rotating wheel unit, a second lifting and rotating wheel unit, a third lifting and rotating wheel unit, and a fourth lifting and rotating wheel unit. These four lifting and rotating wheel units are arranged in sequence, with the first lifting and rotating wheel unit closest to the coloring ring machine. When installed, the lifting and rotating wheel units are tilted and positioned at a 2° horizontal angle with the centerline of the steel pipe, allowing the steel pipe to move axially in one direction. Each lifting and rotating wheel unit includes a wheel mounting base 5, on which are mounted two opposing wheels 6, forming a wheel assembly. A lifting cylinder is installed at the bottom of the wheel mounting base 5, which drives the wheel mounting base 5 to move upward and downward. When the lifting cylinder drives the wheel mounting base 5 downward, the wheel assembly is lower than the cooling bed. When the lifting cylinder drives the wheel mounting base upward, the wheels rise synchronously, allowing the wheels to lift the steel pipe. Motor 7 drives the wheel assembly to rotate, causing the steel pipe to rotate on the wheel assembly. The color ring coating machine 1 is equipped with a color ring coating station, which is equipped with a limit mechanism 2. The steel pipe 3 is sent to the color ring coating station via a cooling bed 4. The lifting cylinder drives the wheel assembly to lift the steel pipe and the motor drives it to rotate. During the production process, the steel pipe moves toward the limit mechanism until the end face of the steel pipe contacts the limit mechanism, and the color ring coating machine begins spraying.
[0024] like Figure 5 As shown, the limiting mechanism 2 includes a limiting seat 2.1, on which is mounted a vertical limiting shaft 2.4. A limiting roller 2.2 is mounted on limiting shaft 2.4. A bearing 2.3 is disposed between limiting roller 2.2 and limiting shaft 2.4. An end plate 2.5 is mounted on top of limiting roller 2.2, which is secured to limiting shaft 2.4. During the production process, the end face of the steel pipe abuts against the roller, preventing axial movement of the steel pipe during the color ring coating process and ensuring accurate positioning of the steel pipe end, thereby achieving precise spraying of the color ring paint.
[0025] like Figure 4 As shown, the outer contour of each wheel pair is an arc-shaped structural member. The arc of the wheel outer contour is tangent to the steel pipe, minimizing the contact area between the wheels and the steel pipe, thereby minimizing the contact area between the wheels and the steel pipe and reducing paint scratches.
[0026] The lifting motion of multiple wheel assemblies is controlled in groups. A non-contact sensor automatically identifies the length of the steel pipe. The controller controls the operation of the first and fourth lifting and rotating wheel assemblies, the first and third lifting and rotating wheel assemblies, or the first and second lifting and rotating wheel assemblies, based on the length of the steel pipe. This allows only two sets of lifting and rotating wheel assemblies to operate, regardless of the length of the steel pipe. This minimizes the amount of contact between the wheel assemblies and the steel pipe, further reducing the area of surface scratches on the steel pipe.
[0027] The process of coloring rings in this application is: start the cooling bed, so that the steel pipe stops at the coloring ring station → the corresponding pair of wheel groups rises and rotates → the end of the steel pipe reaches the limit mechanism → coloring rings → after completion, the pair of wheel groups stops rotating and lowers → the steel pipe is moved out → the next steel pipe enters the coloring ring station.
[0028] This application groups the lifting and rotating wheel units so that only two sets of wheels are in contact with the steel pipe, regardless of its length, minimizing the number of contact areas between the wheels and the steel pipe. Furthermore, the arc of the wheel's outer contour is tangent to the steel pipe, minimizing the contact area between the wheels and the steel pipe, reducing surface scratches by 50-70%. The end of the steel pipe rests against the limiting roller, which prevents axial movement of the steel pipe during the color ring application process, preventing the appearance of spiral lines in the color ring; it also positions the end of the steel pipe, allowing for precise spraying of the color ring paint.
[0029] In addition to the above embodiments, the present invention also includes other implementation methods. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of protection of the claims of the present invention.
Claims
1. A color ring device that improves quality in all directions, characterized by: It includes a coloring ring machine, and a plurality of evenly spaced cooling beds are provided on the side of the coloring ring machine, and steel pipes are provided on the cooling beds. A lifting and rotating wheel group is provided between two adjacent cooling beds, and the lifting and rotating wheel groups are arranged obliquely; any of the lifting and rotating wheel groups includes a wheel mounting seat, and the wheel mounting seat is provided with two oppositely arranged wheels to form a wheel group; the wheel mounting seat is driven to perform lifting movement, driving the wheel group to move synchronously; the coloring ring machine is provided with a coloring ring station, and a limiting mechanism is provided on the coloring ring station, and the steel pipe is sent to the coloring ring station through the cooling bed, and the two lifting and rotating wheel groups rise synchronously to lift the steel pipe and drive it to rotate; the end of the steel pipe abuts against the limiting mechanism, thereby limiting the end of the steel pipe.
2. The coloring ring device for improving the quality of the product in all directions according to claim 1, characterized in that: The horizontal angle between any of the lifting and rotating wheel sets and the center line of the steel pipe is 1 to 3 degrees.
3. The coloring ring device for improving the quality of the product in all directions according to claim 1, characterized in that: The limiting mechanism includes a limiting seat, a vertically arranged limiting shaft is provided on the limiting seat, a limiting roller is sleeved on the limiting shaft, a bearing is provided between the limiting roller and the limiting shaft, an end plate is provided on the top of the limiting roller, and the end plate is fixed on the limiting shaft.
4. The color ring device for improving the quality of the product in all directions according to claim 1, characterized in that: The outer contour surface of the pair of wheels is an arc structure.
5. The color ring device for improving the quality of the product in all directions according to claim 1, characterized in that: A non-contact sensor is also provided, and the non-contact sensor detects the length of the steel pipe.