A pipe ring marking device

Abstract

The present invention discloses a pipe annular marking device, which belongs to the technical field of pipe marking, and comprises two parts: a conveying device and a marking device. An arc-shaped slideway is arranged inside the conveying device, which is adapted to the outer diameter of the pipe, and the pipe is driven to move stably in the arc-shaped slideway by the rotation of a push roller. The marking device comprises components such as a bracket, a marking block and a roller. Two rollers are rotatably installed inside the marking block, and the axial direction of the roller is the same as the conveying direction of the pipeline. A storage chamber is also arranged inside the marking block for storing paint, and the roller takes the paint from the storage chamber and applies it on the surface of the pipe. The marking block can slide along the support frame to change the width of the marking line on the pipe. In addition, the marking device also adopts a motor to drive the rotation of the roller and the push roller, so as to realize automatic marking and reduce the difficulty and labor intensity of manual operation.

Description

Technical Field

[0001] The invention relates to the technical field of pipe marking, and in particular to a pipe annular marking device. Background Art

[0002] In the pipe processing industry, marking the annular body of the pipe is a crucial process step. The traditional marking method is limited to long strips of lines along the length of the pipe. If the pipe needs to be marked in an annular shape, the marking instrument must be rotated around the pipe or the pipe itself, which is a relatively complicated operation process. In addition, conventional marking equipment can only paint lines of fixed width when marking, and cannot adapt to the marking requirements of different widths.

[0003] If it is necessary to mark different parts of a pipe, it is usually necessary to push the pipe to move, but conventional pushing devices can only achieve axial movement. When the pipe rotates circumferentially, its outer wall will be subjected to friction, which may damage the dye that has been applied. In order to solve the above problem, the present invention proposes a pipe annular marking device. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, an object of the present invention is to provide a pipe annular marking device that can synchronize the conveying and marking operations.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a pipe annular marking device, including a conveying device for pushing the pipe to move and a marking device.

[0006] An arc-shaped slideway is arranged inside the conveying device, and the arc-shaped slideway is adapted to the outer diameter of the pipe fitting.

[0007] The marking device comprises a bracket and a marking unit. Two rollers are rotatably mounted inside the marking unit. The axial direction of the rollers is the same as the conveying direction of the pipeline. The rollers can slide along the axial direction, and the two rollers have overlapping parts in the axial direction.

[0008] Wherein, a storage cavity for containing paint is provided inside the marking unit, a part of the rotating roller is arranged in the storage cavity, and the other part extends out of the marking unit.

[0009] Preferably, the bracket is arranged above the conveying frame, a supporting frame capable of moving up and down is installed at the bottom of the conveying frame, and the scribing unit is installed on the supporting frame.

[0010] Preferably, the marking unit comprises two marking blocks, each of which is provided with a material storage cavity, two rollers are respectively arranged inside the two marking blocks, and the two marking blocks are slidably mounted on a support frame, and a cylinder for driving the marking blocks to slide is fixed on the support frame.

[0011] Preferably, the conveying device comprises a conveying frame, the arc-shaped slide is arranged inside the conveying frame, and a plurality of pushing rollers are arranged on the inner wall of the arc-shaped slide. When the pushing rollers rotate, the pushing rollers can drive the pipes inside the arc-shaped slide to move.

[0012] Preferably, the pushing roller comprises a pushing disk, on which a driven wheel is rotatably mounted, the driven wheel and the outermost end of the pushing disk form a circle, and when the pushing disk rotates, the pushing roller can drive the pipe to move.

[0013] Preferably, the arc-shaped slide is provided with a plurality of nodes, each node comprises three pushing disks, and the three pushing disks are respectively arranged on both sides and the bottom of the arc-shaped slide.

[0014] Preferably, the pushing plates on both sides are connected to a first connecting rod, and the pushing plate at the bottom is connected to a second connecting rod, one end of the first connecting rod is fixed on the corresponding pushing plate and fixed with a bevel gear, and the two ends of the second connecting rod are respectively fixed with bevel gears, and the bevel gears at both ends of the second connecting rod are meshed with the bevel gears on the first connecting rods on both sides, and a motor for driving the second connecting rod to rotate is fixed on the conveying frame.

[0015] Preferably, a connecting wheel is fixed to the outside of the second connecting rod at each node, the connecting wheel is rotatably installed inside the conveying frame, and a connecting belt is sleeved on the outside of the plurality of connecting wheels.

[0016] The beneficial effects of the present invention are: In response to the fact that "conventional marking devices find it difficult to perform circular marking on pipes and cannot adapt to marking requirements of different widths" mentioned in the background technology, the marking unit of the present invention includes two rotating rollers, which are in contact with the surface of the pipe. When the rollers rotate, they can mark the surface of the pipe and can also use friction to drive the pipe to rotate and paint circular lines on the pipe. At the same time, the two marking blocks can be staggered, and the staggered rollers can paint lines of different widths.

[0017] In response to the fact that "friction may cause damage to the outer wall of the pipe" mentioned in the background technology, the marking unit of the present invention includes a rotatable pushing disk and a driven wheel arranged on the pushing disk. The rotation of the pushing disk can push the pipe to slide axially, and the rotation of the driven wheel on the pushing disk can change the sliding friction with the pipe into rolling friction, which greatly reduces the resistance to the pipe, effectively protects the pipe and improves the coating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of the marking device.

[0019] Figure 2 for Figure 1 Enlarged view of point A in .

[0020] Figure 3 It is a cross-sectional view of the conveying rack of the present invention.

[0021] Figure 4 It is a schematic diagram of the pushing plate of the present invention.

[0022] Figure 5 It is a connection diagram of the scribing device and the conveying rack of the present invention.

[0023] Figure 6 For the present invention Figure 3 Cross-sectional view along the BB direction.

[0024] In the figure: 1. conveying frame, 2. bracket, 3. pushing plate, 4. supporting frame, 5. marking block, 6. material storage chamber, 7. rotating roller, 8. driven wheel, 9. bevel gear, 10. first connecting rod, 11. connecting wheel, 12. second connecting rod, 13. connecting belt. DETAILED DESCRIPTION

[0025] The present invention is described below with specific embodiments, but they are not intended to be limiting of the invention.

[0026] Embodiment 1 like Figure 1-Figure 5 As shown, in this embodiment, a pipe annular marking device is provided, which includes a conveying device for pushing the pipe to move and a marking device.

[0027] The conveyor is provided with an arc-shaped slideway inside, which is adapted to the outer diameter of the pipe fitting. The arc-shaped slideway is an inwardly concave channel or path. In order to guide or support the conveyed object so that it can move along a specific path, the size and shape of the arc-shaped slideway are matched to the outer diameter of the pipe fitting. Such adaptation ensures that the pipe fitting can slide stably on the slideway without getting stuck or deviating from the path due to size mismatch.

[0028] The marking device includes a bracket 2 and a marking unit. Two rollers 7 are installed in the marking unit for rotation. The rotation axis (i.e., the length direction) of the roller 7 is consistent with the direction in which the pipe is conveyed in the marking device. The axial direction of the roller 7 is the same as the conveying direction of the pipe. The axial direction of the roller 7 is consistent with the pipe fitting, and the two have the conditions for generating friction. Therefore, when the roller 7 starts to rotate, it can drive the pipe fitting to rotate synchronously. In addition, the roller 7 also has the function of marking: while driving the pipe fitting to rotate, it can evenly mark along the circumferential direction of the pipe to ensure that the entire pipe annular surface can be evenly covered. The roller 7 can slide along its axial direction, and the two rollers 7 have overlapping parts in the axial direction. When the two rollers 7 move in the circumferential direction, their contact area with the pipe fitting will be extended accordingly. The increase in this contact length causes the part of the two rollers 7 painted on the pipe fitting to become wider. Therefore, by adjusting the movement of the roller 7, the painting of lines of different widths can be achieved.

[0029] Among them, a storage chamber 6 for holding paint is provided inside the marking unit. The function of the storage chamber 6 is to store enough paint so that the paint can be continuously provided to the roller 7 during the marking process. A part of the roller 7 is arranged in the storage chamber 6 so that the roller 7 can directly contact the paint in the storage chamber 6, so that the paint can be evenly dipped when the roller 7 rotates. The other part extends out of the marking unit. The roller 7 is used to contact the surface of the pipe to be marked and evenly apply the dipped paint on the pipe. A motor for driving the roller 7 to rotate is fixed on the marking unit. The function of this motor is to provide power to drive the roller 7 to rotate inside and outside the marking unit. Driven by the motor, the roller 7 can rotate continuously and stably, thereby achieving uniform marking on the surface of the pipe.

[0030] Embodiment 2 like Figure 1-Figure 5 As shown, based on the first embodiment, this embodiment provides a structure of a scribing device, which is as follows: The support 2 is arranged above the conveyor frame 1. The conveyor frame 1 is a structure for supporting and conveying the object to be marked, and is a movable platform or conveyor belt. The fact that the support 2 is located above the conveyor frame 1 means that the marking operation will be performed above the object during the conveying process. A support frame 4 that can move up and down is installed at the bottom of the conveyor frame 1. The marking unit is installed on the support frame 4. The function of the support frame 4 is to provide a mounting platform with adjustable height for the marking unit. By adjusting the height of the support frame 4, it can be ensured that the marking unit maintains an appropriate distance and contact pressure with the object (such as a pipe) on the conveyor frame 1, thereby achieving a better marking effect.

[0031] The marking unit includes two marking blocks 5, each of which has a material storage cavity 6 inside, two rollers 7 are respectively arranged inside the two marking blocks 5, and the two marking blocks 5 are slidably mounted on the support frame 4, and a cylinder for driving the marking blocks 5 to slide is fixed on the support frame 4, and the roller 7 can directly obtain paint from the material storage cavity 6. In addition, the two marking blocks 5 are designed to slide on the support frame 4, and a cylinder is fixed on the support frame 4, and the function of the cylinder is to drive the marking blocks 5 to slide. This design allows the marking blocks 5 (and the rollers 7 inside) to adjust their positions as needed to adapt to lines of different sizes.

[0032] The conveying device includes a conveying frame 1, an arc-shaped slide is arranged inside the conveying frame 1, and a plurality of push rollers are arranged on the inner wall of the arc-shaped slide. When the push rollers rotate, the push rollers can drive the pipes inside the arc-shaped slide to move. The conveying device is composed of the conveying frame 1 and the arc-shaped slide. The pipes can be pushed smoothly along the path of the arc-shaped slide. Whether it is preparation before marking or transportation after marking, efficient automatic processing can be achieved. The design of the entire conveying device takes into account the continuity of the pipes during the marking process, ensuring the improvement of marking quality and production efficiency.

[0033] Embodiment 3 like Figure 1-Figure 5 As shown, based on the first and second embodiments, this embodiment provides a driving method for the push roller, which is as follows: The push roller includes a push disk 3, on which a driven wheel 8 is rotatably mounted. The driven wheel 8 forms a circle with the outermost end of the push disk 3. When the push disk rotates, the push roller can drive the pipe to move. The driven wheel 8 is designed to rotate freely on the push disk 3, and at the same time, it maintains the necessary connection with the push disk 3 to ensure that they can work together. The driven wheel 8 and the outermost edge of the push disk 3 together form a circular contour. When the push disk 3 starts to rotate, it can transmit power through the overall structure to push the pipe to move. When the pipe needs to rotate in the circumferential direction, the raised part in the middle of the driven wheel 8 will contact the surface of the pipe, generating rolling friction. Compared with sliding friction, this rolling friction can significantly reduce friction, making the pipe easier to be driven to rotate, thereby achieving smoother and more stable movement.

[0034] The arc-shaped slide is provided with a number of nodes, each of which includes three push disks 3, which are respectively arranged on both sides and the bottom of the arc-shaped slide. The push disks 3 on both sides are respectively located on the left and right sides of the moving path of the pipe fittings, providing lateral support and thrust for the pipe fittings, and helping the pipe fittings to move smoothly along the curve of the arc-shaped slide. The push disk 3 at the bottom is located directly below the pipe fittings, providing support and thrust for the pipe fittings, ensuring that the pipe fittings can continue to move forward. By providing such three push disks 3 at each node, the arc-shaped slide can provide a full-range, stable and efficient pushing system for the pipe fittings, so that the pipe fittings can move along the slide at the desired speed and path.

[0035] The push disks 3 on both sides are connected with the first connecting rod 10, and the push disk 3 at the bottom is connected with the second connecting rod 12. One end of the first connecting rod 10 is fixed on the corresponding push disk 3 and fixed with a bevel gear 9. The two ends of the second connecting rod 12 are respectively fixed with bevel gears 9. The bevel gears 9 at both ends of the second connecting rod 12 are meshed with the bevel gears 9 on the first connecting rods 10 on both sides. A motor for driving the second connecting rod 12 to rotate is fixed on the conveying frame 1. The push disk 3 on the arc slide node is connected with the bevel gear 9 through the connecting rod. The motor drives the bottom connecting rod to rotate, and drives the connecting rods and the push disk 3 on both sides to rotate synchronously through the meshed bevel gears 9. When the motor is started, it drives the second connecting rod 12 to start rotating. Since the bevel gears 9 at both ends of the second connecting rod 12 are meshed with the bevel gears 9 on the first connecting rods 10 on both sides, when the second connecting rod 12 rotates, it will drive the first connecting rods 10 on both sides to rotate synchronously through the transmission action of the bevel gears 9. Since the first connecting rod 10 is fixed on the pushing disk 3, when the first connecting rod 10 rotates, it will also drive the pushing disk 3 to rotate together. In this way, the synchronous rotation of the three pushing disks 3 (two on both sides and one at the bottom) is achieved. This design can be driven by a motor to achieve the synchronous rotation of the three pushing disks 3, thereby ensuring that the pipe can move smoothly and continuously on the arc slide.

[0036] A connecting wheel 11 is fixed to the outside of the second connecting rod 12 on each node, and the connecting wheel 11 is rotatably installed inside the conveying frame 1. A connecting belt 13 is sleeved on the outside of multiple connecting wheels 11. The second connecting rod 12 on each node is equipped with a connecting wheel 11, and these connecting wheels 11 are interconnected through the connecting belt 13. The connecting wheels 11 located at different nodes are not isolated, but are interconnected through the connecting belt 13. Specifically, the connecting wheels 11 equipped with the second connecting rod 12 on each node are connected in series with the connecting wheels 11 on other nodes through the connecting belt 13, forming a continuous and coordinated transmission system. Such a design not only enhances the linkage between the nodes, but also ensures that the entire conveying device can maintain a high degree of synchronization during operation.

[0037] Working principle: The conveying device is mainly composed of a conveying frame 1, an arc-shaped slideway and a push roller. The arc-shaped slideway is embedded in the conveying frame 1, and its shape matches the outer diameter of the pipe fitting to ensure that the pipe fitting can slide stably without deviating from the path.

[0038] The motor drives the second connecting rod 12 to rotate, and through the bevel gear 9, the first connecting rods 10 and the push disk 3 on both sides rotate synchronously to ensure that the pipes move smoothly and continuously on the arc slide. The second connecting rod 12 on each node is fixed with a connecting wheel 11 on the outside, and these connecting wheels 11 are connected to each other through a connecting belt 13 to form a continuous transmission system, which enhances the linkage and overall synchronization between the nodes.

[0039] The motor on the marking unit drives the roller 7 to rotate. During the rotation process, the roller 7 generates friction with the pipe, driving the pipe to rotate synchronously and marking uniformly along the circumference of the pipe. The axial sliding design of the roller 7 makes the marking width adjustable to meet different marking requirements.

[0040] The marking block 5 is driven by an oil cylinder to slide on the support frame 4, and its position can be adjusted according to the size of the pipe fitting and the marking requirements.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A pipe ring marking device, comprising a conveying device for pushing the pipe to move and a marking device, characterized in that: The conveying device is provided with an arc-shaped slideway inside, and the arc-shaped slideway is adapted to the outer diameter of the pipe fitting; The marking device comprises a bracket (2) and a marking unit, wherein two rollers (7) are rotatably mounted inside the marking unit, the axial direction of the rollers (7) being the same as the conveying direction of the pipe, the rollers (7) being able to slide along their axial direction, and the two rollers (7) having overlapping portions in the axial direction; A material storage cavity (6) for containing paint is provided inside the marking unit, a part of the rotating roller (7) is arranged in the material storage cavity (6), and another part extends out of the marking unit.

2. A pipe annular marking device according to claim 1, characterized in that: The bracket (2) is arranged above the conveying frame (1); a support frame (4) capable of moving up and down is installed at the bottom of the conveying frame (1); and the scribing unit is installed on the support frame (4).

3. A pipe annular marking device according to claim 2, characterized in that: The marking unit comprises two marking blocks (5), each marking block (5) is provided with a material storage cavity (6) inside, two rollers (7) are respectively arranged inside the two marking blocks (5), and the two marking blocks (5) are slidably mounted on a support frame (4), and an oil cylinder for driving the marking blocks (5) to slide is fixed on the support frame (4).

4. A pipe annular marking device according to claim 1, characterized in that: The conveying device comprises a conveying frame (1), the arc-shaped slideway is arranged inside the conveying frame (1), and a plurality of push rollers are arranged on the inner wall of the arc-shaped slideway. When the push rollers rotate, the push rollers can drive the pipes inside the arc-shaped slideway to move.

5. A pipe annular marking device according to claim 4, characterized in that: The pushing roller comprises a pushing disc (3), on which a driven wheel (8) is rotatably mounted, the driven wheel (8) and the outermost end of the pushing disc (3) forming a circle, and when the pushing disc rotates, the pushing roller can drive the pipe to move.

6. A pipe annular marking device according to claim 5, characterized in that: The arc-shaped slideway is provided with a plurality of nodes, each node comprising three pushing disks (3), and the three pushing disks (3) are respectively arranged on both sides and the bottom of the arc-shaped slideway.

7. A pipe annular marking device according to claim 6, characterized in that: The push plates (3) on both sides are connected to first connecting rods (10), and the push plate (3) at the bottom is connected to a second connecting rod (12). One end of the first connecting rod (10) is fixed on the corresponding push plate (3) and fixed with a bevel gear (9). The two ends of the second connecting rod (12) are respectively fixed with bevel gears (9). The bevel gears at the two ends of the second connecting rod (12) are meshed with the bevel gears (9) on the first connecting rods (10) on both sides. A motor for driving the second connecting rod (12) to rotate is fixed on the conveying frame (1).

8. A pipe annular marking device according to claim 7, characterized in that: A connecting wheel (11) is fixed to the outside of the second connecting rod (12) at each node. The connecting wheel (11) is rotatably mounted inside the conveying frame (1). A connecting belt (13) is sleeved on the outside of the plurality of connecting wheels (11).

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