Automatic steel pipe mark spraying system

Abstract

The utility model provides an automatic mark spraying system for a steel pipe. The automatic mark spraying system comprises an automatic mark spraying device, an ink jet head controller and a PLC (Programmable Logic Controller), the automatic mark spraying device comprises a base, a lifting mechanism is arranged above the base and comprises a bottom plate and a top plate, guide rails and guide rail sliding blocks are arranged on the left side and the right side between the bottom plate and the top plate, a lead screw, a nut and a nut connecting block are arranged in the middle between the bottom plate and the top plate, and a rotating hand wheel is further arranged at the top of the lead screw. The nut connecting block and the guide rail sliding block are both connected with a supporting platform, a linear module is arranged on the supporting platform, a middle connecting block is arranged above the linear module, and an ink jet head is arranged on the middle connecting block. The ink jet head controller is electrically connected with the ink jet head, and the PLC is electrically connected with the linear module. According to the utility model, the ink spraying automation and the ink spraying quality of the ink-jet head can be improved, the automation level and the ink-jet quality of steel pipe production are improved, the labor intensity of workers is reduced, manual participation is reduced, and smooth production is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of manufacturing industry, and in particular relates to an automatic steel pipe marking system. Background Art

[0002] At present, domestic spiral steel pipe manufacturers generally use handwritten steel pipe identification labels or handheld inkjet printers for coding. When using handwritten steel pipe labels, workers use chalk to quickly write steel pipe labels on the surface of the moving steel pipe before the steel pipe is cut. Handheld inkjet printers are generally used to complete coding on fixed steel pipes. Since the spiral steel pipes in production rotate and move forward, handwritten steel pipe labels require the relevant workers to concentrate highly, and require the handwriting of steel pipe information labels to be completed in a short time. Long-term work has a high labor intensity for workers and requires high operation requirements for workers. In addition, the use of chalk to handwrite identification information is prone to information ambiguity or information loss during transportation.

[0003] After the steel pipe production is completed, the company uses automatic or handheld inkjet printers to spray the label, which is not conducive to the transmission and identification of steel pipe information between various processes. Some companies use automatic spraying, but require the steel pipe to move in a straight line and not rotate, which limits the further application of spraying technology in spiral steel pipe companies. Summary of the invention

[0004] In view of this, the utility model aims to overcome the shortcomings of the above-mentioned problems in the prior art and proposes an automatic marking system for steel pipes. The automatic marking system can effectively improve the marking efficiency and marking quality of steel pipes.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] An automatic marking system for steel pipes, comprising an automatic marking device, an inkjet head controller, and a PLC;

[0007] The automatic marking device comprises a base, a lifting mechanism is arranged above the base, the lifting mechanism comprises a bottom plate and a top plate, guide rails and guide rail sliders are arranged at the left and right sides between the bottom plate and the top plate, the guide rail sliders are slidably connected with the guide rails, a lead screw, a nut and a nut connecting block are arranged at the middle position between the bottom plate and the top plate, the lead screw is threadedly connected with the nut, the nut connecting block is arranged on the nut, a rotating hand wheel is also arranged on the top of the lead screw, the nut connecting block and the guide rail slider are both connected to the supporting platform, the lead screw is driven to rotate by rotating the hand wheel, and the nut connecting block and the supporting platform are driven to move up and down along the guide rail, a linear module is arranged on the supporting platform, an intermediate connecting block is arranged above the linear module, and an inkjet head is arranged on the intermediate connecting block;

[0008] The inkjet head controller is electrically connected to the inkjet head and is used to send control commands to the inkjet head to control the operation of the inkjet head;

[0009] The PLC is electrically connected to the linear module, and drives the linear module to move by controlling the operation of the motor of the linear module;

[0010] It also includes a photoelectric sensor, which is arranged on the supporting platform and is electrically connected to the PLC.

[0011] Furthermore, the bottom plate of the lifting mechanism and the upper end plate of the base are fixedly connected together by bolts.

[0012] Furthermore, the inkjet head and the middle connecting block are connected together by bolts with the aid of a locking connector.

[0013] Furthermore, support rib structures are used at both ends of the support platform to improve support strength.

[0014] Furthermore, the lifting platform is fixedly connected to the supporting platform through the nut connecting block and the matching holes.

[0015] Furthermore, the lead screw is a T-shaped lead screw.

[0016] Furthermore, the linear module and the supporting platform are fixedly connected together by bolts.

[0017] Compared with the prior art, the steel pipe automatic marking system described in the utility model has the following advantages:

[0018] The system of the utility model can improve the automation and quality of inkjet marking, improve the automation level and inkjet quality of steel pipe production, reduce the labor intensity of workers, reduce manual participation, and ensure the smooth progress of production. Due to the use of automatic control, there is no need for operators to operate the inkjet equipment on site, which greatly improves production efficiency. The whole set of devices has a simple structure, is relatively easy to manufacture, and has low cost. It can meet the automation transformation of spiral welded pipe production enterprises and improve the automation level of production enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0020] Figure 1 This is an overall schematic diagram of an automatic steel pipe marking system of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the lifting mechanism of the utility model;

[0022] Figure 3 It is a side schematic diagram of the automatic label spraying device of the present utility model.

[0023] Description of reference numerals:

[0024] 1-base; 2-lifting mechanism; 3-linear module; 4-inkjet head; 5-middle connecting block; 6-support platform; 7-rotating handwheel; 8-locking connector; 9-guide rail; 10-guide rail slider; 11-nut; 12-nut connecting block; 13-screw; 14-base plate; 15-inkjet head controller; 16-PLC; 17-photoelectric sensor. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0029] like Figure 1-3 As shown, the utility model provides an automatic marking system for steel pipes, including an automatic marking device, an inkjet head controller 15, and a PLC 16.

[0030] The automatic marking device comprises a base 1, a lifting mechanism 2 is arranged above the base 1, and the lifting mechanism 2 comprises a bottom plate 14 and a top plate; the bottom plate 14 and the upper end plate of the base 1 are fixedly connected together by bolts;

[0031] Guide rails 9 and guide rail sliders 10 are provided on both sides between the bottom plate 14 and the top plate, and the guide rails 9 and the guide rail sliders 10 are slidably connected. A lead screw 13, a nut 11 and a nut connecting block 12 are provided in the middle position between the bottom plate 14 and the top plate. The lead screw 13 is threadedly connected to the nut 11, and the nut connecting block 12 is arranged on the nut 11. A rotating hand wheel 7 is provided on the top of the lead screw 13; the nut connecting block 12 and the guide rail slider 10 are both connected to the support platform 6, and the lead screw 13 is driven to rotate by rotating the hand wheel 7, and the nut connecting block 12 and the support platform 6 are driven to move up and down along the guide rail 9. A linear module 3 is provided on the support platform 6, and an intermediate connecting block 5 is provided above the linear module 3, and an inkjet head 4 is provided on the intermediate connecting block 5; the inkjet head 4 is connected to the linear module 3 through a locking connector 8 and an intermediate connecting block 5, and moves left and right under the drive of the linear module 3. The inkjet head 4 can be moved along the locking connector 8 in the longitudinal direction and then locked to adjust the inkjet distance between the inkjet head 4 and the steel pipe.

[0032] The lifting mechanism 2 of the utility model is fixedly connected with the support platform 6 through the matching hole through the nut connection block 12. When the rotary hand wheel 7 is turned, the screw 13 is rotated, and the nut connection block 12 and the support platform 6 rise or fall along the side wall guide rail 9 together to meet the marking requirements of different steel pipe diameters and heights. When designing, the screw 13 is T-shaped, so that when working, due to its self-locking characteristics, it is guaranteed not to slide down and stay in this position stably; in order to achieve fast marking movement and maintain good stability, the horizontal spacing between the left and right guide rails 9 can be appropriately maintained at a certain width when the support platform 6 is designed. In addition, the supporting rib structure is used at both ends of the support platform 6 to improve the support strength of the platform; the linear module 3 and the support platform 6 are fixedly connected together by bolts; the inkjet head 4 is located above the linear module, and is bolted together with the moving slider of the linear module 3 through the intermediate connecting block 5; the inkjet head 4 and the intermediate connecting block 5 are bolted together with the help of the locking connector 8; the above fixed connection by bolts ensures the overall stability of the inkjet head rapid marking system; the locking connector 8 can adjust the distance between the inkjet head and the steel pipe to meet the requirements of the distance between the inkjet head and the steel pipe for marking different steel pipe diameters. The linear module 3 can control the inkjet head to move quickly left and right, so as to achieve rapid marking of the inkjet head during the production process.

[0033] When the utility model is working, firstly, the base 1 is fixed near the attachment of the steel pipe mobile production line, and the inkjet head 4 is placed horizontally on one side of the steel pipe to reduce the high temperature fumigation of the inkjet head by the hot air of the steel pipe. Secondly, it is necessary to adjust the lifting mechanism 2 by rotating the hand wheel 7 to ensure that the inkjet head 4 is basically consistent with the horizontal position of the center of the steel pipe in the height direction, so as to achieve good inkjet on the target surface; in order to improve the quality of inkjet printing, the front and rear positions of the inkjet head 4 can be adjusted, and then locked by the locking connector 8 to keep the distance between the inkjet head 4 and the steel pipe at about 20mm, and lock the position of the moving mechanism, and by adjusting the distance between the inkjet head 4 and the steel pipe, effective marking operations of different steel pipe diameters can be achieved.

[0034] When the steel pipe reaches the marking position during the production process, the photoelectric sensor 13 will detect the steel pipe and notify the inkjet head controller 15 and PLC16. PLC16 controls the servo motor to run at high speed, driving the linear module 3 to change from high-speed rotation to fast linear motion, and cooperate with the inkjet head 4 to quickly spray ink, so as to realize fast printing of the mark. The application of the automatic marking system can effectively improve the speed and quality of marking.

[0035] The utility model adopts the structure of servo motor + linear touch group in structure. The linear touch group drives the inkjet head to realize the conversion of the rotary motion of the motor into linear motion. The rapid rotation of the motor drives the inkjet head to move linearly rapidly. In order to realize the spray marking of production tubes with different diameters, the lifting and telescopic functions are considered in the design of the entire mechanical structure. The lifting is realized by rotating the hand-cranked wheel, and the telescopic function adopts the linear touch group motion block to directly clamp the inkjet head through the locking connector, and the telescopic function is realized by clamping and locking at different positions. The overall structure is simple, which replaces the previous screw guide rail method, meets the needs of online production, and completes rapid spray marking.

[0036] Matters not covered in this utility model are known technologies.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic marking system for steel pipes, characterized by: It includes an automatic marking device, an inkjet head controller (15), and a PLC (16); The automatic marking device comprises a base (1), a lifting mechanism (2) is arranged above the base (1), the lifting mechanism (2) comprises a bottom plate (14) and a top plate, guide rails (9) and guide rail sliders (10) are arranged at left and right sides between the bottom plate (14) and the top plate, the guide rail sliders (10) are slidably connected to the guide rails (9), a lead screw (13), a nut (11) and a nut connecting block (12) are arranged at a middle position between the bottom plate (14) and the top plate, the lead screw (13) is threadedly connected to the nut (11), and the nut connecting block (12) is threadedly connected to the nut (11). The block (12) is arranged on the nut (11), the top of the lead screw (13) is also provided with a rotating hand wheel (7), the nut connecting block (12) and the guide rail slider (10) are both connected to the support platform (6), and the lead screw (13) is driven to rotate by rotating the hand wheel (7), so as to drive the nut connecting block (12) and the support platform (6) to move up and down along the guide rail (9), the support platform (6) is provided with a linear module (3), an intermediate connecting block (5) is provided above the linear module (3), and an inkjet head (4) is provided on the intermediate connecting block (5); The inkjet head controller (15) is electrically connected to the inkjet head (4); The PLC (16) is electrically connected to the linear module (3) and drives the linear module (3) to move by controlling the operation of the motor of the linear module (3); It also comprises a photoelectric sensor (17), which is arranged on the supporting platform (6) and is electrically connected to the PLC (16).

2. The automatic steel pipe marking system according to claim 1 is characterized by: The bottom plate (14) of the lifting mechanism (2) and the upper end plate of the base are fixedly connected together by bolts.

3. The automatic steel pipe marking system according to claim 1 is characterized by: The inkjet head (4) and the middle connecting block (5) are connected together by bolts with the aid of a locking connector (8).

4. The automatic steel pipe marking system according to claim 1 is characterized by: The two ends of the support platform (6) adopt support rib structures to improve the support strength.

5. The automatic steel pipe marking system according to claim 1 is characterized by: The lifting mechanism (2) is fixedly connected to the support platform (6) through a nut connection block (12) via matching holes.

6. The automatic steel pipe marking system according to claim 1 is characterized by: The lead screw (13) is a T-shaped lead screw.

7. The automatic steel pipe marking system according to claim 1 is characterized by: The linear module (3) and the supporting platform (6) are fixedly connected together by bolts.

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