A ship section intelligent spraying device and a spraying method

Abstract

The embodiment of the application provides a ship profile intelligent spraying device and a spraying method, the device comprises a portal column, a beam device fixedly connected with the portal column, a moving trolley arranged on the beam device and engaged with a gear rack on the beam device through a gear, a quick positioning device arranged on each conveying chain of a profile conveying beam, used for sensing a profile conveyed from a previous station and controlling an irregular round table stopper to be lifted to a set position, a precise positioning device fixedly arranged on a mounting base, used for contacting the profile through a hollow rectangular push block and pushing the profile to be attached to the irregular round table stopper lifted to the set position, a code spraying device fixedly arranged below the moving trolley and moving with the moving trolley, used for positioning the profile through a point laser, reading spraying related information written in advance by an external program, and realizing cooperative movement of the code spraying device in a vertical direction and at different angles in space through a six-axis robot, and orderly spraying of the profile surface through a spraying head at an intelligent and precise position.

Description

Technical Field

[0001] This invention relates to the field of intelligent inkjet printing technology for ship profiles, and in particular to an intelligent inkjet printing device and method for ship profiles. Background Technology

[0002] In modern shipbuilding, various types of profiles are used in large quantities. Effectively distinguishing and tracking the information of these profiles after processing is a crucial step in the profile manufacturing process. With a wide variety of profiles and diverse processing techniques, how to efficiently and systematically integrate profiles into our pre-designed process flow, and how to promptly retrieve relevant product information at each stage, has always been one of the pressing challenges in information-automated production.

[0003] Traditional recording methods involve marking the material surface with markers or manual inkjet printing. This method results in high manual labor intensity and hinders the timely retrieval of relevant information from previous processes, leading to extremely poor traceability and preventing synchronized information sharing across the entire production line. Existing inkjet printing methods are not only inefficient, time-consuming, and labor-intensive, but also present significant challenges in information sharing.

[0004] Given the problems of low efficiency, unreliable printing quality, and inability to share printing information in the production of shipbuilding profiles, it is essential to provide an intelligent printing method and device for shipbuilding profiles to solve the problems existing in the current technology. Summary of the Invention

[0005] In view of the above-mentioned problems existing in the prior art, the present invention provides an intelligent inkjet printing device and method for ship profiles, which can realize intelligent fully automatic operation, greatly improve printing efficiency, and save production cycle; it can achieve precise positioning of printing position, and the error can be controlled within ±1mm; it can realize simultaneous printing of characters, structural lines, reverse straight lines, MARK lines and QR codes, which greatly improves the diversity of printing needs and choices, and is more conducive to subsequent production information tracking.

[0006] This invention provides an intelligent inkjet printing device for ship profiles, comprising:

[0007] Portal column;

[0008] A crossbeam assembly, which is fixedly connected to the gantry column;

[0009] A mobile trolley is mounted on the crossbeam assembly and meshes with a rack on the crossbeam assembly via gears;

[0010] The rapid positioning device is installed on each conveyor chain on the profile conveying support beam. It is used to sense the profile conveyed from the previous station, control the irregular truncated block to rise to the set position and lift it, and stop the profile conveyor belt from moving.

[0011] The precision positioning device is fixed on the mounting base and can contact the profile through the hollow rectangular push block and push the profile to fit against the irregular frustum stop block that has been raised to the set position for precise positioning.

[0012] The inkjet printing device is fixed below the mobile trolley and moves with the trolley under the drive of the drive device. It can locate the profile position by point laser and read the inkjet printing related information pre-written by the external program. The inkjet printing equipment realizes coordinated movement in the vertical direction and at different spatial angles through a six-axis robot, and performs intelligent and precise orderly inkjet printing on the profile surface through the inkjet head.

[0013] In some embodiments of the present invention, the gantry column comprises welded hollow square steel, with one column disposed on each side of the crossbeam assembly;

[0014] The beam assembly is specifically fixedly connected to the gantry column by high-strength bolts for steel structure.

[0015] The crossbeam device comprises a crossbeam body, a metal anti-collision block, a polyurethane anti-collision block, a magnetic induction sheet, a guide rail, a slider, and a rack, arranged symmetrically from left to right. The metal anti-collision block, the polyurethane anti-collision block, the magnetic induction sheet, the guide rail, the slider, and the rack are fixed to the crossbeam body by bolts. The magnetic induction sheet is used to give signals to the moving trolley, making the movement of the trolley controllable.

[0016] In some embodiments of the present invention, the mobile trolley includes a trolley body, a sensor sensor, a support base, a robot control cabinet, a printing device, a drive motor, a reducer, a cable chain connecting bracket, and gears. The mobile trolley is fixed to the crossbeam device by bolts. The trolley body, the sensor sensor, the cable chain connecting bracket, and the robot control cabinet are connected to the support base by threads. The printing device, the drive motor, the reducer, and the gears are fixed to the trolley body.

[0017] The trolley body moves on the crossbeam device via a motor reducer and gears. A signal feedback sensor for the trolley is mounted on a sensor sensor plate. The support base serves as a connection. The robot control cabinet and the drag chain connecting bracket are respectively fixed on the support base. The drive motor and reducer enable the trolley to move horizontally on the crossbeam device via the drive gears.

[0018] In some embodiments of the present invention, the coding device includes a six-axis robot and a coding device body. The coding device body includes a dot laser, a printing head 2, a dot laser signal amplifier, a dot laser signal transmitter, a connecting plate, and a flange connecting block. The dot laser, the dot laser signal amplifier, the dot laser signal transmitter, and the flange connecting block are fixed to the connecting plate by threads, and the printing head is fixed to the flange connecting block.

[0019] In some embodiments of the present invention, the rapid positioning device includes a first lifting cylinder, an irregularly shaped frustum stop block, and a fixed connecting block. The irregularly shaped frustum stop block is fixed to the first lifting cylinder by threads, and the first lifting cylinder is fixed to the fixed connecting block by threads.

[0020] In some embodiments of the present invention, the irregularly shaped frustum stop is designed in the shape of a frustum to ensure that slippage and misalignment occur when blocking the profile. Its top part protrudes to limit the upward sliding tendency of the profile after being blocked, and to press down to achieve a precise vertical positioning, so that the surface of the profile is completely in contact with the surface of the conveyor chain.

[0021] In some embodiments of the present invention, the precise positioning device includes a base foot, a base support column, a second lifting cylinder, a guide shaft, a hollow rectangular push block, a horizontal pushing cylinder, and a lifting connecting plate. The base foot is fixed on the mounting base and its height is adjustable. The base support column is fixedly connected to the base foot to form a support body. The second lifting cylinder and the guide shaft are threadedly fixed to the base support column to provide driving force and guidance for the lifting movement of the mechanism. The hollow rectangular push block is fixed to the front end of the horizontal pushing cylinder and is driven by the cylinder to precisely position the profile. The horizontal pushing cylinder is threadedly fixed to the lifting connecting plate. The lifting cylinder drives the lifting connecting plate to move the horizontal pushing cylinder upward, so that the hollow rectangular push block can completely cover the profile in the vertical direction.

[0022] This invention also provides an intelligent inkjet printing method for ship profiles. The inkjet printing method uses the intelligent inkjet printing device for ship profiles described in the above embodiments, and the inkjet printing method includes:

[0023] Step 1: The sensor on the quick positioning device of the inkjet printing unit senses the profile conveyed from the previous station. The first lifting cylinder on the quick positioning device moves upward, causing the irregular truncated block to rise to the set position. At the same time, the profile conveyor belt stops moving.

[0024] Step 2: The lifting cylinder on the precision positioning device of the inkjet printing unit moves upward, while the horizontal pushing cylinder moves forward. The hollow rectangular pusher first contacts the profile, and then continues to move to push the profile to fit against the irregular truncated cone block for precise positioning.

[0025] Step 3: After receiving the feedback signal, the moving trolley of the printing device begins to move on the crossbeam device. The position of the profile is accurately calculated by the dot laser on the coding device, and the printing-related information pre-written by the external program is read.

[0026] Step 4: The horizontal pushing cylinder on the precision positioning device moves the hollow rectangular pushing block backward to the zero position. At the same time, the second lifting cylinder descends to the zero position so that the precision positioning device is located at the bottom of the profile.

[0027] Step 5: The six-axis robot of the inkjet printing device moves the main body of the inkjet printing device vertically and at different angles in space, and performs intelligent and precise orderly printing on the surface of the profile through the working of the printing head.

[0028] Step 6: After printing is completed, the moving trolley returns to zero, and the lifting cylinder on the quick positioning device descends to the origin, so that the quick positioning device is reset to the bottom of the profile, and the profile is transported to the next station.

[0029] Compared with existing technologies, the beneficial effects of the intelligent inkjet printing device and method for ship profiles provided in this invention are as follows: it can achieve intelligent fully automatic operation, greatly improving printing efficiency and saving production cycle; it can achieve precise positioning of the printing position, with the error controllable within ±1mm; it can simultaneously print characters, structural lines, reverse straight lines, MARK lines, and QR codes, greatly improving the diversity of printing needs and choices, and is more conducive to subsequent production information tracking; at the same time, it is equipped with an upgraded blocking mechanism for the rapid positioning device and a limiting mechanism in the precise positioning device, which can effectively position the incoming profiles and ensure the positional accuracy of the profiles before printing. In addition, it is suitable for printing flat steel, as well as other types of profiles such as bulb flat steel, double bulb flat steel, equal angle steel, unequal angle steel, etc., with a very wide range of applications. Attached Figure Description

[0030] Figure 1 This is a top view of the intelligent inkjet printing device for ship profiles provided in an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the isometric structure of the intelligent inkjet printing device for ship profiles provided in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the gantry column of the intelligent inkjet printing device for ship profiles provided in an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the crossbeam device of the intelligent inkjet printing device for ship profiles provided in an embodiment of the present invention;

[0034] Figure 5 This is a front view schematic diagram of the transverse moving trolley of the intelligent inkjet printing device for ship profiles provided in an embodiment of the present invention;

[0035] Figure 6 A side view of the transverse moving trolley of the intelligent inkjet printing device for ship profiles provided in an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the coding device of the intelligent inkjet printing device for ship profiles provided in an embodiment of the present invention;

[0037] Figure 8 This is a front view structural diagram of the main body of the coding device of the intelligent inkjet printing device for ship profiles provided in an embodiment of the present invention;

[0038] Figure 9 A side view of the main body of the coding device of the intelligent inkjet printing device for ship profiles provided in an embodiment of the present invention;

[0039] Figure 10 This is a front view structural diagram of the rapid positioning device of the intelligent inkjet printing device for ship profiles provided in an embodiment of the present invention;

[0040] Figure 11 This is a side view of the rapid positioning device of the intelligent inkjet printing device for ship profiles provided in an embodiment of the present invention.

[0041] Figure 12 This is a front view structural schematic diagram of the precision positioning device of the intelligent inkjet printing device for ship profiles provided in an embodiment of the present invention;

[0042] Figure 13 This is a schematic diagram of the isometric structure of the precision positioning device of the intelligent inkjet printing device for ship profiles provided in an embodiment of the present invention;

[0043] Figure 14 This is a schematic diagram of the isometric structure of the intelligent inkjet printing device for ship profiles provided in an embodiment of the present invention. Detailed Implementation

[0044] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] Various embodiments and features of this application are described herein with reference to the accompanying drawings.

[0046] These and other features of this application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0047] It should also be understood that although this application has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this application, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0048] The above and other aspects, features and advantages of this application will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0049] Specific embodiments of this application are described below with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of this application, which can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to ascertain the true intent based on the user's historical operations, and to avoid unnecessary or redundant details that would obscure this application. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use this application in various ways with substantially any suitable detailed structure.

[0050] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in other embodiments,” all of which may refer to one or more of the same or different embodiments according to this application.

[0051] This invention provides an intelligent inkjet printing device for ship profiles, as detailed in the following embodiments. Figures 1 to 13 As shown, the printing device includes:

[0052] gantry column 1;

[0053] The crossbeam device 2 is fixedly connected to the gantry column 1;

[0054] The mobile trolley 3 is mounted on the crossbeam device 2 and meshes with the rack on the crossbeam device 2 via gears;

[0055] The quick positioning device 5 is installed on each conveyor chain on the profile conveying support beam. It is used to sense the profile conveyed from the previous station, control the irregular truncated block 8-2 to rise to the set position and lift it, and stop the profile conveyor belt from moving.

[0056] The precision positioning device 6 is fixed on the mounting base and can contact the profile through the hollow rectangular pusher 9-5 and push the profile to fit against the irregular frustum stop 8-2 that has been raised to the set position for precise positioning.

[0057] The coding device 4 is fixed below the mobile trolley 3 and moves with the mobile trolley 3 under the drive of the drive device. It can locate the profile position through the dot laser 7-1 and read the printing-related information pre-written by the external program. The coding equipment 4 achieves coordinated movement in the vertical direction and at different spatial angles through the six-axis robot 6-1, and performs intelligent and precise orderly printing on the profile surface through the printing head 7-2.

[0058] Specifically, such as Figure 1 and Figure 2 As shown, the gantry column 1 is fixed on the mounting base (not shown in the figure), the crossbeam device 2 is fixed to the gantry column 1 by high-strength bolts of the steel structure, the moving trolley 3 is fixed on the crossbeam device 2, the gear on the moving trolley 3 and the rack on the crossbeam device are fully meshed, the inkjet printer 4 is fixed below the moving trolley 3 and moves synchronously with the trolley, the quick positioning device 5 is fixed on the profile conveying support beam, one of each is arranged on each conveying chain, and the precise positioning device 6 is fixed on the mounting base (not shown in the figure) and is arranged intermittently at unequal intervals. Among them, the moving trolley 3 and the inkjet printer 4 achieve horizontal synchronous movement of the mechanism by the gear and rack driven by the motor with a reducer. The printing equipment achieves coordinated movement in the vertical direction and at different spatial angles by a six-axis robot. The quick positioning device 5 and the precise positioning device 6 both achieve the reciprocating movement of the mechanism by cylinders.

[0059] Figure 3 This is a schematic diagram of the gantry column 1. The gantry column 1 is composed of welded hollow square steel, with one on each side forming the main support structure. The main hollow square steel structure is 2.3m high, perpendicular to the ground, and connected to the base plate by bolts to achieve adjustable position and height. A 20mm steel plate is welded to the top of the column, and a slotted groove is provided to achieve an adjustable connection with the main beam.

[0060] like Figure 4 This is a schematic diagram of the crossbeam device 2, which mainly consists of a crossbeam body 4-1, metal anti-collision blocks 4-2, polyurethane anti-collision blocks 4-3, magnetic induction plates 4-4, guide rails 4-5, sliders 4-6, and racks 4-7, arranged symmetrically from left to right. The metal anti-collision blocks 4-2, polyurethane anti-collision blocks 4-3, magnetic induction plates 4-4, guide rails 4-5, sliders 4-6, and racks 4-7 are fixed to the crossbeam body 4-1 with bolts. The metal anti-collision blocks 4-2 and polyurethane anti-collision blocks 4-3 primarily serve a protective function, preventing unexpected situations.

[0061] The trolley moves off the guide rail. The magnetic induction plates 4-4 at both ends send signals to the moving trolley 3, making the trolley's movement controllable.

[0062] Guide rail 4-5, slider 4-6 and rack 4-7 are the core components of the motion mechanism, providing the motion carrier for the motion mechanism.

[0063] like Figure 5 and Figure 6 This is a schematic diagram of the mobile trolley 3, which mainly consists of the trolley body 5-1, sensor sensor 5-2, support base 5-3, robot control cabinet 5-4, printing equipment (inkjet controller, inkjet box, and waste liquid box) 5-5, drive motor 5-6, reducer 5-7, cable chain connecting bracket 5-8, and gear 5-9. The mobile trolley 3 is bolted to the crossbeam device 2. The trolley body 5-1, sensor sensor 5-2, cable chain connecting bracket 5-8, and robot control cabinet 5-4 are threaded onto the support base 5-3. The printing equipment 5-5, drive motor 5-6, reducer 5-7, and gear 5-9 are fixed to the trolley body 5-1. The trolley body 5-1 moves on the crossbeam device 2 via the motor and reducer driving the gears. The mobile trolley signal feedback sensor is mounted on the sensor sensor 5-2. The support base 5-3 serves as a connection. The robot control cabinet 5-4 and cable chain connecting bracket 5-8 are respectively fixed to the support base 5-3. The robot control cabinet 5-4 is installed close to the robot's mounting location, and the printing equipment 5-5 is mounted on the trolley body 5-1 above the coding device. Both installations aim to shorten cable length and improve signal feedback sensitivity. The drive motor 5-6 and reducer 5-7, via the drive gear 5-9, enable the moving trolley 3 to move horizontally on the crossbeam device 2.

[0064] like Figures 7 to 9 This is a schematic diagram of the coding device 4, mainly composed of a six-axis robot 6-1 and a coding device body 6-2. The coding device body 6-2 consists of a spot laser 7-1, a print head 7-2, a spot laser signal amplifier 7-3, a spot laser signal transmitter 7-4, a connecting plate 7-5, and a flange connecting block 7-6. The spot laser 7-1, spot laser signal amplifier 7-3, spot laser signal transmitter 7-4, and flange connecting block 7-6 are fixed to the connecting plate 7-5 by threads, and the print head 7-2 is fixed to the flange connecting block 7-6. The added spot laser 7-1, spot laser signal amplifier 7-3, and spot laser signal transmitter 7-4 allow the coding device to better position the printing location on the profile. The coding device body 6-2 is mounted on the six-axis robot 6-1, and the coding equipment achieves coordinated movement in the vertical direction and at different spatial angles through the six-axis robot.

[0065] like Figure 10 and Figure 11 The diagram shows the mechanism of the rapid positioning device 5, which mainly consists of a first lifting cylinder 8-1, a shaped frustum stop block 8-2, and a fixed connecting block 8-3. The shaped frustum stop block 8-2 is fixed to the first lifting cylinder 8-1 by threads, and the first lifting cylinder 8-1 is fixed to the fixed connecting block 8-3 by threads.

[0066] The 8-2 irregularly shaped frustum stop block is designed to prevent slippage and misalignment when blocking the profile. The protruding top is designed to limit the upward sliding tendency of the profile after being blocked, and can also be pressed down to provide precise vertical positioning, so that the surface of the profile is completely in contact with the surface of the conveyor chain, which is more conducive to the accuracy and precision of intelligent printing.

[0067] like Figure 12 and Figure 13 The schematic diagram of the precision positioning device 6 mainly consists of a base 9-1, a base support 9-2, a second lifting cylinder 9-3, a guide shaft 9-4, a hollow rectangular push block 9-5, a horizontal pushing cylinder 9-6, and a lifting connecting plate 9-7. The base 9-1 is fixed on the mounting foundation (not shown in the figure) and its height is adjustable. The base support 9-2 is fixedly connected to the base 9-1 to form the main support body. The second lifting cylinder 9-3 and the guide shaft 9-4 are fixed to the base support 9-2 by threads, providing driving force and guidance for the lifting movement of the mechanism. The hollow rectangular push block 9-5 is fixed to the front end of the horizontal pushing cylinder 9-6 and is driven by the cylinder to precisely position the profile. The horizontal pushing cylinder 9-6 is fixed to the lifting connecting plate 9-7 by threads. The lifting cylinder 9-3 drives the lifting connecting plate 9-7 to move the horizontal pushing cylinder 9-6 upward, so that the hollow rectangular push block 9-5 can completely cover the profile in the vertical direction, and better exert the pushing force to the maximum.

[0068] As can be seen from the above technical solutions, the intelligent inkjet printing device for ship profiles provided in the above embodiments of the present invention can achieve intelligent and fully automatic operation, greatly improving printing efficiency and saving production cycle; it can achieve precise positioning of the printing position, with the error controllable within ±1mm; it can simultaneously print characters, structural lines, reverse straight lines, MARK lines, and QR codes, greatly improving the diversity of printing needs and choices, and is more conducive to subsequent production information tracking; at the same time, it is equipped with an upgraded blocking mechanism of the fast positioning device and a limiting mechanism in the precise positioning device, which can effectively position the incoming profiles and ensure the positional accuracy of the profiles before printing. In addition, it is suitable for printing flat steel, as well as other types of profiles such as bulb flat steel, double bulb flat steel, equal angle steel, unequal angle steel, etc., with a very wide range of applications.

[0069] This invention also provides an intelligent inkjet printing method for ship profiles, wherein the inkjet printing method employs the intelligent inkjet printing device for ship profiles described in the above embodiments, such as... Figures 1 to 14 As shown, the printing method includes:

[0070] Step 1: The sensor on the quick positioning device 5 of the inkjet printing unit senses the profile conveyed from the previous station. The first lifting cylinder 8-1 on the quick positioning device 5 moves upward, causing the irregular truncated block 8-2 to rise to a fixed position. At the same time, the profile conveyor belt stops moving.

[0071] Step 2: The lifting cylinder 9-3 on the precision positioning device of the inkjet printing device moves upward, while the horizontal pushing cylinder 9-6 moves forward. The hollow rectangular push block 9-5 first contacts the profile, and then continues to move to push the profile to fit against the irregular truncated cone block 8-2 for precise positioning.

[0072] Step 3: After receiving the feedback signal, the moving trolley 3 of the inkjet printing device starts to move on the crossbeam device 2. The position of the profile is accurately calculated by the dot laser 7-1 on the inkjet printing device 3. The inkjet printing related information pre-written by the external program is read. The inkjet printing related information includes at least the position, quantity and type of inkjet printing.

[0073] Step 4: The horizontal pushing cylinder 9-6 on the precision positioning device 6 moves the hollow rectangular pushing block 9-5 backward to the zero position. At the same time, the second lifting cylinder 9-3 descends to the zero position so that the precision positioning device 6 is located at the bottom of the profile.

[0074] Step 5: The six-axis robot of the inkjet printing device moves the main body 6-2 of the inkjet printing device in the vertical direction and at different angles in space, and performs intelligent and precise orderly printing on the surface of the profile through the working of the printing head 7-2.

[0075] Step 6: After printing is completed, the moving trolley 3 returns to the zero point, and the lifting cylinder 9-3 on the quick positioning device 6 descends to the origin, so that the quick positioning device 6 is reset to the bottom of the profile, and the profile is transported to the next station.

[0076] As can be seen from the above technical solutions, the intelligent inkjet printing method for ship profiles provided in the above embodiments of the present invention can achieve intelligent and fully automatic operation, greatly improving printing efficiency and saving production cycle; it can achieve precise positioning of the printing position, with the error controllable within ±1mm; it can simultaneously print characters, structural lines, reverse straight lines, MARK lines, and QR codes, greatly improving the diversity of printing needs and choices, and is more conducive to subsequent production information tracking; at the same time, it is equipped with an upgraded blocking mechanism for the rapid positioning device and a limiting mechanism in the precise positioning device, which can effectively position the incoming profiles and ensure the positional accuracy of the profiles before printing. In addition, it is suitable for printing flat steel, as well as other types of profiles such as bulb flat steel, double bulb flat steel, equal angle steel, unequal angle steel, etc., with a very wide range of applications.

[0077] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. An intelligent inkjet printing device for ship profiles, characterized in that, include: Portal column; A crossbeam assembly, which is fixedly connected to the gantry column; A mobile trolley is mounted on the crossbeam assembly and meshes with a rack on the crossbeam assembly via gears; A rapid positioning device is installed on each conveyor chain on the profile conveyor support beam. It is used to sense the profile conveyed from the previous station, control the irregular truncated cone block to rise to the set position and lift it, and stop the profile conveyor belt. The rapid positioning device includes a first lifting cylinder, an irregular truncated cone block and a fixed connecting block. The irregular truncated cone block is fixed to the first lifting cylinder by threads, and the first lifting cylinder is fixed to the fixed connecting block by threads. The irregular truncated cone block is designed in the shape of a truncated cone with a protruding top part to ensure that slippage and misalignment occur when blocking the profile, and to achieve precise vertical positioning when pressing down, so that the surface of the profile is completely in contact with the conveyor chain. A precision positioning device, fixed on a mounting base, can contact the profile through a hollow rectangular pusher block and push the profile to fit against the irregularly shaped frustum stop block raised to a set position for precise positioning. The precision positioning device includes a base foot, a base support column, a second lifting cylinder, a guide shaft, a hollow rectangular pusher block, a horizontal pushing cylinder, and a lifting connecting plate. The base foot is fixed on the mounting base and can be adjusted in height. The base support column is fixedly connected to the base foot to form a support body. The second lifting cylinder and the guide shaft are threadedly fixed to the base support column, providing driving force and guidance for the lifting movement of the mechanism. The hollow rectangular pusher block is fixed to the front end of the horizontal pushing cylinder and is driven by the cylinder to precisely position the profile. The horizontal pushing cylinder is threadedly fixed to the lifting connecting plate, and the lifting cylinder drives the lifting connecting plate to move the horizontal pushing cylinder upward. The hollow rectangular pusher block can completely cover the profile in the vertical direction. The inkjet printing device is fixed below the mobile trolley and moves with the trolley under the drive of the drive device. It can locate the profile position by point laser and read the inkjet printing related information pre-written by the external program. The inkjet printing device realizes coordinated movement in the vertical direction and at different spatial angles through a six-axis robot, and performs intelligent and precise orderly inkjet printing on the profile surface through the inkjet head.

2. The intelligent inkjet printing device for ship profiles according to claim 1, characterized in that, The gantry column is composed of welded hollow square steel, with one column installed on each side of the crossbeam assembly. The beam assembly is specifically fixedly connected to the gantry column by high-strength bolts for steel structure. The crossbeam device comprises a crossbeam body, a metal anti-collision block, a polyurethane anti-collision block, a magnetic induction sheet, a guide rail, a slider, and a rack, arranged symmetrically from left to right. The metal anti-collision block, the polyurethane anti-collision block, the magnetic induction sheet, the guide rail, the slider, and the rack are fixed to the crossbeam body by bolts. The magnetic induction sheet is used to give signals to the moving trolley, making the movement of the trolley controllable.

3. The intelligent inkjet printing device for ship profiles according to claim 1, characterized in that, The mobile trolley includes a trolley body, sensor sensing element, support base, robot control cabinet, printing equipment, drive motor, reducer, cable chain connecting bracket, and gears. The mobile trolley is fixed to the crossbeam device by bolts. The trolley body, sensor sensing element, cable chain connecting bracket, and robot control cabinet are connected to the support base by threads. The printing equipment, drive motor, reducer, and gears are fixed to the trolley body. The trolley body moves on the crossbeam device via a motor reducer and gears. A signal feedback sensor for the trolley is mounted on a sensor sensor plate. The support base serves as a connection. The robot control cabinet and the drag chain connecting bracket are respectively fixed on the support base. The drive motor and reducer enable the trolley to move horizontally on the crossbeam device via the drive gears.

4. The intelligent inkjet printing device for ship profiles according to claim 1, characterized in that, The coding device includes a six-axis robot and a coding device body. The coding device body also includes a dot laser, a print head, a connecting plate, and a flange connecting block. The dot laser, the dot laser signal amplifier, the dot laser signal transmitter, and the flange connecting block are fixed to the connecting plate by threads, and the print head is fixed to the flange connecting block.

5. A method for intelligent inkjet printing on ship profiles, characterized in that, The printing method employs the intelligent printing device for ship profiles as described in any one of claims 1-4, and the printing method includes: Step 1: The sensor on the quick positioning device of the inkjet printing unit senses the profile conveyed from the previous station. The first lifting cylinder on the quick positioning device moves upward, causing the irregular truncated block to rise to the set position. At the same time, the profile conveyor belt stops moving. Step 2: The second lifting cylinder on the precision positioning device of the inkjet printing unit moves upward, while the horizontal pushing cylinder moves forward. The hollow rectangular push block first contacts the profile, and then continues to move to push the profile to fit against the irregular truncated block for precise positioning. Step 3: After receiving the feedback signal, the moving trolley of the printing device begins to move on the crossbeam device. The position of the profile is accurately calculated by the dot laser on the coding device, and the printing-related information pre-written by the external program is read. Step 4: The horizontal pushing cylinder on the precision positioning device moves the hollow rectangular pushing block backward to the zero position. At the same time, the second lifting cylinder descends to the zero position so that the precision positioning device is located at the bottom of the profile. Step 5: The six-axis robot of the inkjet printing device moves the main body of the inkjet printing device vertically and at different angles in space, and performs intelligent and precise orderly printing on the surface of the profile through the working of the printing head. Step 6: After printing is completed, the moving trolley returns to zero, and the lifting cylinder on the quick positioning device descends to the origin, so that the quick positioning device is reset to the bottom of the profile, and the profile is transported to the next station.

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