A steel pipe coupling color ring ink-jet terminal and an ink-jet device thereof

By integrating UV nozzles and curing lamps into the spray nozzle design, the problem of separating paint spraying and UV curing during the color ring marking process of steel pipe couplings is solved, realizing overlapping operations of paint spraying and UV curing, and improving processing efficiency and applicability.

CN224408727UActive Publication Date: 2026-06-26HANGZHOU LICHI TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU LICHI TECHNOLOGY CO LTD
Filing Date
2025-08-15
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the existing technology, during the color ring inkjet printing process of steel pipe couplings, the paint spraying and light curing operations are carried out separately, which leads to a longer processing time and increased functional requirements for the conveyor line. External factors also affect the paint drying effect.

Method used

Design a steel pipe coupling color ring sprayer that integrates a UV nozzle and a curing lamp, allowing for overlapping spraying and UV curing operations. The position and angle of the curing lamp can be adjusted using a bracket and bolt structure to accommodate steel pipes of different diameters, reducing the functional requirements of the conveyor line.

Benefits of technology

It enables overlapping of paint spraying and UV curing operations, shortens processing time, improves efficiency, reduces dependence on conveyor lines, adapts to steel pipes of different diameters, and expands the scope of application.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of steel pipe coupling color ring code spraying wharf and its code spraying device, wherein code spraying wharf, comprising: main body, the bottom surface of which is provided with a plurality of through holes on one end, UV spray head is embedded and fixed in through hole;Curing lamp, for curing paint that UV spray head sprays on steel pipe;Another end on the bottom surface of the main body is provided with inner recess, bracket is provided in inner recess, curing lamp can be rotatable and slidingly arranged on the main body by bracket, the irradiation direction of curing lamp and the spraying direction of UV spray head are set at acute angle. The utility model can realize the effect that there is overlap between paint spraying operation and photocuring operation, improve the efficiency of processing and reduce the functional requirement to conveying line.
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Description

Technical Field

[0001] This utility model relates to the field of inkjet printing devices, specifically to a steel pipe coupling color ring inkjet printer and its inkjet printing device. Background Technology

[0002] Color rings for steel pipe couplings are colored markings used to identify information about steel pipes, such as their steel grade and application. In routine mass production of color ring marking for steel pipe couplings, parallel steel pipes are intermittently and horizontally conveyed to a marking device directly below it via a conveyor line. Driven by lifting and rotating mechanisms, the pipes are then lifted and rotated, causing the marking device to spray paint onto the pipe surface and form color rings. Afterward, the pipes are returned to the conveyor line and continue to be horizontally conveyed to the next station for paint curing. This conveying process prolongs the exposure time of the undried paint on the pipes, increasing the risk of external factors (such as dust) affecting the undried paint.

[0003] During photocuring, since the lamps only irradiate one side of the steel pipe, the steel pipe still needs to be rotated to ensure the curing effect of the coating on the surface of the steel pipe. This greatly increases the functional requirements of the conveyor line. Although a ring lamp can be set up to directly fit on the steel pipe for photocuring, since the conveyor line's conveying direction to the steel pipe is perpendicular to the moving direction of the steel pipe as it enters the ring lamp, a corresponding drive mechanism is still needed to move the steel pipe. Utility Model Content

[0004] The purpose of this utility model is to provide a steel pipe coupling color ring spraying terminal and its coding device. The spraying terminal and its coding device can achieve the effect of overlapping between paint spraying and light curing operations, which improves the processing efficiency and reduces the functional requirements of the conveyor line.

[0005] The technical solution adopted by this utility model to solve the above problems is:

[0006] A steel pipe coupling color ring spraying terminal, comprising:

[0007] The main body has several through holes on one end of its bottom surface, and a UV nozzle is embedded and fixed in the through holes;

[0008] Curing lamp, used to cure the coating sprayed onto the steel pipe by the UV nozzle;

[0009] The other end of the bottom surface of the main body is provided with a concave part, and a bracket is provided in the concave part. The curing lamp can be rotated and slidably mounted on the main body through the bracket. The irradiation direction of the curing lamp is set at an acute angle to the spraying direction of the UV nozzle.

[0010] As a further improvement to the above technical solution, the bracket includes two connecting units, each including a mounting plate and a connecting plate. Two opposite positions on the inner end of the mounting plate are detachably connected to connecting blocks. The connecting blocks are slidably connected to the mounting surface of the concave portion, and their sliding direction is parallel to the axial direction of the steel pipe. The top end of the connecting plate is hinged to the outer end of the mounting plate via a first bolt, and the two can be fixed together by the first bolt. A first oblong hole is provided on the outer end of the mounting plate in a horizontal direction, and a second oblong hole is provided on the top end of the connecting plate in a vertical direction. The first bolt passes through the first oblong hole and the second oblong hole. The curing lamp is located between the two connecting units. The top ends of both ends of the curing lamp are respectively hinged to the connecting plates of the two connecting units, and the bottom ends of both ends of the curing lamp are slidably connected to the two connecting plates via second bolts, and the two can be fixed together by the second bolts.

[0011] As a further improvement to the above technical solution, a clamping plate is detachably installed between the two connecting plates by bolts. The clamping plate is located above the curing lamp and both ends are bent to form a connecting part. A through hole for the shank of the bolt to pass through is provided on the connecting part. The through hole is a waist-shaped hole. A light-blocking plate is sandwiched between the clamping plate and the curing lamp. The light-blocking plate is horizontal between the curing lamp and the UV nozzle.

[0012] As a further improvement to the above technical solution, the mounting surface is inclined relative to the main body, and the width of the concave portion increases from top to bottom.

[0013] As a further improvement to the above technical solution, the two connecting blocks are located at the two ends of the same diagonal line at the inner end of the mounting plate.

[0014] As a further improvement to the above technical solution, two elongated grooves are provided on the mounting surface. The two grooves are parallel, and two connecting blocks are slidably connected in the two grooves respectively. The cross-section of the grooves is trapezoidal.

[0015] As a further improvement to the above technical solution, the through holes are arranged in a staggered and straight line, and the arrangement direction of each through hole is perpendicular to the conveying direction of the steel pipe.

[0016] As a further improvement to the above technical solution, abutting wheels are embedded and rotatably connected to both ends of the bottom surface of the main body, with the bottom ends of the abutting wheels exposed on the bottom surface of the main body.

[0017] As a further improvement to the above technical solution, the top surface of the main body is provided with an inlet for inputting paint.

[0018] This utility model also provides a coding device, including:

[0019] Several inkjet printing units, the structure of which is the same as the structure of the steel pipe coupling color ring inkjet printer described in any of the above technical solutions;

[0020] A drive unit is used to drive the inkjet printing unit to move vertically and horizontally.

[0021] Compared with the prior art, this utility model has the following advantages and effects:

[0022] (1) This utility model integrates the coating spraying function and the light curing function on the spraying dock by setting up the UV nozzle and curing lamp on the main body. This allows the device to complete the spraying of the coupling color ring by processing the steel pipe on the conveyor line in a single operation. It also achieves the purpose of overlapping the coating spraying operation and the light curing operation, thereby shortening the total processing time of the coupling color ring on a single steel pipe, improving the processing efficiency, and reducing the functional requirements of the conveyor line.

[0023] (2) Through the structural arrangement between the main body and the curing lamp, the spraying terminal can adjust the relative position between the main body and the curing lamp according to the diameter of different steel pipes. While ensuring the coating effect on the surface of the steel pipe, it also ensures the curing effect of the curing lamp on the coating on the steel pipe, which improves the flexibility of use and expands the application range of the spraying terminal. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a steel pipe coupling color ring spray terminal from one perspective in Embodiment 1.

[0025] Figure 2 This is a schematic diagram of the structure of a steel pipe coupling color ring spray terminal from a second perspective in Embodiment 1.

[0026] Figure 3 This is a partial structural diagram of a steel pipe coupling color ring spray terminal in Embodiment 1.

[0027] Figure 4 yes Figure 3 The diagram shows the structural schematic of the side of the mounting surface.

[0028] Figure 5 This is a partial structural diagram of a steel pipe coupling color ring spray wharf in Embodiment 1.

[0029] Figure 6 This is a schematic diagram of the structure of a coding device according to Embodiment 2.

[0030] The components include: main body 1, through hole 11, UV nozzle 12, liquid inlet 13, curing lamp 2, recessed part 3, bracket 31, mounting surface 32, groove 33, connecting unit 4, mounting piece 41, connecting piece 42, connecting block 43, first waist-shaped hole 44, second waist-shaped hole 45, first bolt 51, second bolt 52, clamping plate 6, connecting part 61, through hole 62, light blocking plate 7, abutting wheel 8, driving device 91, and coding unit 92. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0032] Example 1.

[0033] See Figures 1-5 This embodiment of a steel pipe coupling color ring spraying terminal includes a main body 1 and a curing lamp 2. A plurality of through holes 11 are provided on one end of the bottom surface of the main body 1. A UV nozzle 12 is embedded and fixed in the through holes 11. A recessed part 3 is provided on the other end of the bottom surface of the main body 1. A bracket 31 is provided in the recessed part 3. The curing lamp 2 is used to cure the coating sprayed on the steel pipe by the UV nozzle 12. The curing lamp 2 can be rotated and slidably set on the main body 1 through the bracket 31. The irradiation direction of the curing lamp 2 is set at an acute angle to the spraying direction of the UV nozzle 12.

[0034] During the process of inkjet printing the coupling color rings on steel pipes, the positional relationship between the curing lamp 2 and the main body 1 is adjusted according to the diameter of the steel pipe. Specifically, the distance between the two is adjusted by sliding the curing lamp 2 relative to the main body 1 via the bracket 31, and the irradiation direction of the curing lamp 2 is adjusted by rotating the curing lamp 2 relative to the main body 1. This ensures the inkjet printing effect on the coupling color rings on steel pipes of different diameters and improves the flexibility of use.

[0035] When the horizontally conveyed steel pipe moves directly below the UV nozzle 12, the steel pipe will be vertically lifted and brought close to the UV nozzle 12 under the drive of the external lifting mechanism until the two reach a set distance. Then the UV nozzle 12 sprays the coating onto the surface of the steel pipe. During this process, the steel pipe will rotate under the drive of the external rotating mechanism, so that the coating forms a color ring on the steel pipe. At the same time, the curing lamp 2 irradiates the surface of the steel pipe, so that the coating on the steel pipe cures faster.

[0036] See Figure 1 The top surface of the main body 1 is provided with a liquid inlet 13 for inputting paint, which facilitates the replenishment of paint in the spraying dock and thus ensures the stability of continuous operation of the spraying dock.

[0037] See Figure 1 , Figure 2The mounting surface 32 is inclined relative to the main body 1, and the width of the concave part 3 increases from top to bottom, which increases the range of horizontal movement of the connecting piece 42 relative to the mounting piece 41. This allows the device to adjust the position of the curing lamp 2 when performing coupling color ring inkjet printing on steel pipes of different diameters to ensure the effectiveness of both, thus expanding the applicability of the device.

[0038] See Figure 2 The through holes 11 are arranged in a staggered and straight line, and the arrangement direction of each through hole 11 is perpendicular to the conveying direction of the steel pipe. While ensuring the coding effect, it also improves the utilization rate of the internal space of the coding terminal and helps to control the volume of the coding terminal.

[0039] See Figure 2 , Figure 3 The bracket 31 includes two connecting units 4, each including a mounting plate 41 and a connecting plate 42. Two opposing positions on the inner end of the mounting plate 41 are detachably connected to connecting blocks 43. The connecting blocks 43 are slidably connected to the mounting surface 32 of the recessed portion 3, and their sliding direction is parallel to the axial direction of the steel pipe. The top end of the connecting plate 42 is hinged to the outer end of the mounting plate 41 by a first bolt 51, and the two can be fixed by the first bolt 51. The outer end of the mounting plate 41 has a first oblong hole 44 arranged horizontally, and the top end of the connecting plate 42 has a second oblong hole 45 arranged vertically. The bolt 51 passes through the first oblong hole 44 and the second oblong hole 45, ensuring the horizontal movement between the mounting plate 41 and the connecting plate 42. The curing lamp 2 is located between the two connecting units 4. The top ends of the curing lamp 2 are respectively hinged to the connecting plates 42 of the two connecting units 4. The bottom ends of the curing lamp 2 are slidably connected to the two connecting plates 42 by the second bolt 52, and the two can be fixed by the second bolt 52. This allows the curing lamp 2 to rotate relative to the connecting plate 42 to adjust the irradiation direction, while also ensuring the stability of the position of the curing lamp 2 after adjustment, thereby ensuring the curing lamp 2's performance.

[0040] In this embodiment, the two connecting blocks 43 are located at the two ends of the same diagonal line at the inner end of the mounting piece 41, which improves the structural strength of the mounting piece 41 sliding on the main body 1 via the connecting blocks 43, thereby ensuring the structural stability between the mounting piece 41 and the main body 1.

[0041] See Figure 3A clamping plate 6 is detachably installed between the two connecting pieces 42 by bolts. The clamping plate 6 is located above the curing lamp 2 and both ends of it are bent to form connecting parts 61. The connecting parts 61 have through holes 62 for the shank of the bolt to pass through. The through holes 62 are oblong holes, which allows the distance between the clamping plate 6 and the curing lamp 2 to be adjusted according to the thickness of the light-blocking plate 7, thereby facilitating the installation of the light-blocking plate 7 between the two. The light-blocking plate 7 is clamped between the clamping plate 6 and the curing lamp 2. The light-blocking plate 7 is horizontal between the curing lamp 2 and the UV nozzle 12, reducing the risk of damage to the UV nozzle 12 caused by the curing lamp 2 shining on it.

[0042] See Figure 3 , Figure 4 The mounting surface 32 has two elongated grooves 33 that are parallel to each other. The two connecting blocks 43 are slidably connected in the two grooves 33, which ensures the stability of the connecting unit 4 sliding relative to the main body 1. The cross-section of the groove 33 is trapezoidal, which increases the difficulty of the connecting block 43 detaching from the main body 1.

[0043] See Figure 5 Both ends of the bottom surface of the main body 1 are embedded and rotatably connected with abutting wheels 8. The bottom end of the abutting wheels 8 is exposed on the bottom surface of the main body 1, which can play the role of resisting foreign objects, thereby reducing the risk of UV nozzle 12 being damaged by collision.

[0044] Example 2.

[0045] See Figure 6 This embodiment of a coding device includes a driving device 91 and several coding units 92. The driving device 91 is used to drive the coding units 92 to move vertically and horizontally. The structure of the coding unit 92 is the same as that of the steel pipe coupling color ring coding terminal described in Embodiment 1. The vertical driving effect of the driving device 91 on the coding units 92 allows the coding device to adjust the height of the coding units 92 according to the height of different steel pipe conveying lines and the lifting height of the steel pipe by the external lifting mechanism. Combined with the horizontal driving effect of the driving device 91 on the coding units 92, the coding device can adjust the position of the coding units 92 according to the requirements of the coating position on the steel pipe. This expands the applicability of the coding device while improving its flexibility and convenience.

[0046] In this embodiment, the driving device 91 may be a plurality of linear driving devices 91, such as a linear module.

[0047] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A steel pipe coupling color ring spraying terminal, characterized in that, include: The main body has several through holes on one end of its bottom surface, and a UV nozzle is embedded and fixed in the through holes; Curing lamp, used to cure the coating sprayed onto the steel pipe by the UV nozzle; The other end of the bottom surface of the main body is provided with a concave part, and a bracket is provided in the concave part. The curing lamp can be rotated and slidably mounted on the main body through the bracket. The irradiation direction of the curing lamp is set at an acute angle to the spraying direction of the UV nozzle.

2. The steel pipe coupling color ring spraying terminal according to claim 1, characterized in that: The bracket includes two connecting units, each including a mounting plate and a connecting plate. Two opposite positions on the inner end of the mounting plate are detachably connected to connecting blocks. The connecting blocks are slidably connected to the mounting surface of the recessed portion, and their sliding direction is parallel to the axial direction of the steel pipe. The top end of the connecting plate is hinged to the outer end of the mounting plate via a first bolt, and the two can be fixed together by the first bolt. A first oblong hole is formed on the outer end of the mounting plate in a horizontal direction, and a second oblong hole is formed on the top end of the connecting plate in a vertical direction. The first bolt passes through the first oblong hole and the second oblong hole. A curing lamp is located between the two connecting units. The top ends of both ends of the curing lamp are respectively hinged to the connecting plates of the two connecting units, and the bottom ends of both ends of the curing lamp are slidably connected to the two connecting plates via second bolts, and the two can be fixed together by the second bolts.

3. The steel pipe coupling color ring spraying terminal according to claim 2, characterized in that: A clamping plate is detachably installed between the two connecting plates by bolts. The clamping plate is located above the curing lamp and both ends are bent to form a connecting part. A through hole is provided on the connecting part for the shank of the bolt to pass through. The through hole is a waist-shaped hole. A light-blocking plate is sandwiched between the clamping plate and the curing lamp. The light-blocking plate is horizontal between the curing lamp and the UV nozzle.

4. The steel pipe coupling color ring spraying terminal according to claim 2, characterized in that: The mounting surface is inclined relative to the main body, and the width of the concave portion increases from top to bottom.

5. The steel pipe coupling color ring spraying terminal according to claim 2, characterized in that: The two connecting blocks are located at the two ends of the same diagonal line at the inner end of the mounting plate.

6. The steel pipe coupling color ring spraying terminal according to claim 2, characterized in that: Two elongated grooves are provided on the mounting surface. The two grooves are parallel to each other, and two connecting blocks are slidably connected in the two grooves respectively. The cross-section of the grooves is trapezoidal.

7. The steel pipe coupling color ring spraying terminal according to claim 1, characterized in that: The through holes are arranged in a staggered, straight line, and the arrangement direction of each through hole is perpendicular to the conveying direction of the steel pipe.

8. The steel pipe coupling color ring spraying terminal according to claim 1, characterized in that: Both ends of the bottom surface of the main body are fitted with and rotatably connected with abutting wheels, and the bottom ends of the abutting wheels are exposed on the bottom surface of the main body.

9. The steel pipe coupling color ring spraying terminal according to claim 1, characterized in that: The top surface of the main body is provided with an inlet for inputting paint.

10. A coding device, characterized in that, include: Several inkjet printing units, the structure of which is the same as the structure of the steel pipe coupling color ring inkjet printer described in any one of claims 1-9; A drive unit is used to drive the inkjet printing unit to move vertically and horizontally.