A nozzle splicing adjustment method and device

Abstract

The present application belongs to the technical field of inkjet printing, and discloses a nozzle splicing adjustment method and device, the nozzle splicing adjustment device includes: an adjustment module, a fixing module, a nozzle, an image acquisition module and a control module; the adjustment module includes a horizontal coordinate adjustment module and a vertical coordinate adjustment module, the horizontal coordinate adjustment module is provided with a first thermal expansion member and a first temperature adjustment module, and the vertical coordinate adjustment module is provided with a second thermal expansion member and a second temperature adjustment module; the adjustment module is used to adjust the temperature of the first thermal expansion member and the second thermal expansion member respectively through the first temperature adjustment module and the second temperature adjustment module, so that the thickness of the first thermal expansion member and the second thermal expansion member changes respectively under the thermal expansion and contraction effects, so as to drive the nozzle to move and adjust the position of the nozzle; the image acquisition module is used to obtain the position of the nozzle; by adjusting the temperature of the first thermal expansion member and the second thermal expansion member, the position of the nozzle is adjusted, thereby improving the adjustment efficiency during nozzle splicing.

Description

Technical Field

[0001] The present application relates to the technical field of inkjet printing, and in particular to a nozzle splicing adjustment method and device. Background Art

[0002] Inkjet printing technology is a high-precision, high-speed technology that is widely used in the fields of chemistry, biology and industrial production. The core component of inkjet printing technology is the nozzle. The adjustment of the nozzle directly affects the quality of inkjet printing. In addition, the requirements of inkjet printing technology are getting higher and higher. In order to further improve the printing resolution, multiple nozzles need to be spliced ​​together, such as Figure 3 As shown ( Figure 3 The center circle represents the nozzle, the dotted line represents the inkjet, and the rectangle represents the printhead. The nozzles of multiple printheads are interpolated in the arrangement direction to increase the density of printed ink droplets, thereby improving print resolution. The high resolution required by inkjet printing requires precise adjustment and splicing of the printheads, with micron-level accuracy, which places extremely high demands on the nozzle adjustment and splicing technology.

[0003] In the prior art, an adjusting screw or a control motor driving the adjusting screw is usually used to adjust and splice multiple nozzles. However, this method is limited by the accuracy of the adjusting screw and the motor, and the vibration of the motor may affect the adjustment accuracy. This method has poor adjustment accuracy and low adjustment efficiency.

[0004] Therefore, in order to solve the technical problems of the existing nozzle splicing adjustment method having shortcomings such as poor adjustment accuracy and low adjustment efficiency, a nozzle splicing adjustment method and device are urgently needed. Summary of the Invention

[0005] The purpose of the present application is to provide a nozzle splicing adjustment method and device, which respectively adjusts the temperatures of the first thermal expansion member and the second thermal expansion member through the adjustment module, so that the thicknesses of the first thermal expansion member and the second thermal expansion member change respectively under the thermal expansion and contraction effects, so as to drive the nozzle to move the horizontal coordinate and the vertical coordinate, thereby adjusting the position of the nozzle, solving the problems of poor adjustment accuracy and low adjustment efficiency in the existing nozzle splicing adjustment method, and realizing precise fine-tuning of the nozzle position through the principle of thermal expansion and contraction, thereby improving the adjustment efficiency during nozzle splicing.

[0006] In a first aspect, the present application provides a nozzle splicing adjustment device, comprising an adjustment module, a fixing module, a nozzle, an image acquisition module, and a control module;

[0007] The adjustment module includes a horizontal coordinate adjustment module and a vertical coordinate adjustment module respectively arranged in two mutually perpendicular directions on the outer peripheral surface of the nozzle, the horizontal coordinate adjustment module is provided with a first thermal expansion member and a first temperature adjustment module, and the vertical coordinate adjustment module is provided with a second thermal expansion member and a second temperature adjustment module; the first thermal expansion member and the second thermal expansion member are respectively in close contact with the nozzle; the adjustment module is used to adjust the temperature of the first thermal expansion member and the second thermal expansion member through the first temperature adjustment module and the second temperature adjustment module, respectively, so that the thickness of the first thermal expansion member and the second thermal expansion member changes respectively under the effect of thermal expansion and contraction, so as to drive the nozzle to move the horizontal coordinate and the vertical coordinate, thereby adjusting the position of the nozzle;

[0008] The fixing module is used to fix the position of the nozzle after the nozzle moves;

[0009] The image acquisition module is arranged opposite to the nozzle, and is used to photograph the nozzle to obtain the position of the nozzle when the nozzle is spliced;

[0010] The control module is used to control the nozzle splicing adjustment device.

[0011] The nozzle splicing adjustment device provided in the present application can adjust the nozzle position when the nozzle is spliced. The temperature of the first thermal expansion member and the second thermal expansion member are adjusted respectively through the adjustment module, so that the thickness of the first thermal expansion member and the second thermal expansion member are changed respectively under the thermal expansion and contraction effects, so as to drive the nozzle to move the horizontal coordinate and the vertical coordinate, thereby adjusting the position of the nozzle, solving the problems of poor adjustment accuracy and low adjustment efficiency in the existing nozzle splicing adjustment method, and realizing precise fine-tuning of the nozzle position through the principle of thermal expansion and contraction, thereby improving the adjustment efficiency during nozzle splicing.

[0012] Optionally, the first temperature regulating module and the second temperature regulating module are respectively provided with a temperature regulating unit and a temperature sensor, which are respectively denoted as a first temperature regulating unit, a second temperature regulating unit, a first temperature sensor, and a second temperature sensor; the first temperature regulating unit is fixedly connected to the first thermal expansion member, and the second temperature regulating unit is fixedly connected to the second thermal expansion member; the first temperature sensor is fixedly connected to the first thermal expansion member, and the second temperature sensor is fixedly connected to the second thermal expansion member;

[0013] The first temperature regulating unit and the second temperature regulating unit are used to regulate the temperature of the first thermal expansion member and the second thermal expansion member respectively, so that the thickness of the first thermal expansion member and the second thermal expansion member respectively change under the effect of thermal expansion and contraction, thereby adjusting the position of the nozzle;

[0014] The first temperature sensor and the second temperature sensor are used to obtain the temperatures of the first thermal expansion member and the second thermal expansion member, respectively.

[0015] The nozzle splicing adjustment device provided in this application can adjust the nozzle position when the nozzle is spliced. The temperature data obtained by the temperature sensor is used for real-time feedback and adjustment of the operation of the temperature adjustment unit, forming a closed-loop control system, enhancing the stability and reliability of the adjustment, and overall improving the accuracy and efficiency of the nozzle position adjustment.

[0016] Optionally, the fixing module includes a base and a limiting module; the adjusting module, the nozzle and the limiting module are arranged in the base, and the adjusting module and the limiting module are respectively fixedly connected to the base; the limiting modules are arranged on two sides of the outer peripheral surface of the nozzle opposite to the horizontal coordinate adjusting module and the vertical coordinate adjusting module;

[0017] The base is used to fix the positions of the adjustment module, the nozzle and the limit module;

[0018] The limiting module is used to limit the moving range of the nozzle and fix the position of the nozzle after movement.

[0019] The nozzle splicing adjustment device provided in the present application can adjust the position of the nozzle when the nozzle is spliced. The base is used as an overall supporting frame to integrate and fix all key components to ensure the stability of the structure of the nozzle splicing device. The limit module is arranged on the outer peripheral surface of the nozzle on both sides opposite to the horizontal coordinate adjustment module and the vertical coordinate adjustment module, which complements the coordinate adjustment direction of the adjustment module to form an all-round constraint. Through the coordinated action of the base and the limit module, a stable and reliable fixing mechanism is provided to avoid the loosening or displacement of the nozzle after the position is adjusted.

[0020] Optionally, the limiting module includes a limiting spring and a fixing bolt; the limiting spring and the fixing bolt are respectively fixedly connected to the base;

[0021] The limit spring is used to push the nozzle so that the nozzle is in close contact with the first thermal expansion member and the second thermal expansion member respectively, thereby limiting the movement range of the nozzle;

[0022] The fixing bolt is used to fix the position of the nozzle after the nozzle moves.

[0023] Optionally, the regulating module is further provided with a heat insulation layer; the heat insulation layer includes a first heat insulation layer and a second heat insulation layer; the first heat insulation layer is located between the first temperature regulating unit and the base, and the second heat insulation layer is located between the second temperature regulating unit and the base;

[0024] The heat insulating layer is used to isolate the base from the influence of the temperature change caused by the temperature regulating unit.

[0025] Optionally, the image acquisition module includes a visual feedback unit and an image processing unit;

[0026] The visual feedback unit is used to photograph the printhead to obtain an image of the printhead;

[0027] The image processing unit is used to detect the position of the nozzle according to the image.

[0028] In a second aspect, a nozzle splicing adjustment method is applied to the nozzle splicing adjustment device described above to adjust the nozzle position when splicing the nozzles, comprising:

[0029] Obtain the nozzle spacing and the nozzle hole spacing of the corresponding nozzle holes of the two nozzles to be spliced, and obtain the nozzle standard spacing and nozzle hole standard spacing when the two nozzles to be spliced ​​are correctly spliced;

[0030] Setting one of the two nozzles to be spliced ​​as the nozzle to be adjusted;

[0031] The first thermal expansion member adjustment temperature and the second thermal expansion member adjustment temperature of the nozzle to be adjusted are calculated based on the difference between the nozzle hole spacing and the standard nozzle hole spacing and the difference between the nozzle head spacing and the standard nozzle head spacing using a preset thermal expansion and contraction change calculation formula;

[0032] Adjust the temperature of the first thermal expansion member of the nozzle to be adjusted to the first thermal expansion member adjustment temperature, and adjust the temperature of the second thermal expansion member of the nozzle to be adjusted to the second thermal expansion member adjustment temperature, so that the adjusted nozzle spacing is equal to the standard nozzle spacing, and the adjusted nozzle hole spacing is equal to the standard nozzle hole spacing.

[0033] The manufacturing method of the nozzle splicing adjustment device adjusts the temperatures of the first thermal expansion member and the second thermal expansion member respectively through the adjustment module, so that the thicknesses of the first thermal expansion member and the second thermal expansion member change respectively under the thermal expansion and contraction effects, so as to drive the nozzle to move the horizontal coordinate and the vertical coordinate, thereby adjusting the position of the nozzle, solving the problems of poor adjustment accuracy and low adjustment efficiency in the existing nozzle splicing adjustment method, and realizing precise fine-tuning of the nozzle position through the principle of thermal expansion and contraction, thereby improving the adjustment efficiency during nozzle splicing.

[0034] Optionally, the first thermal expansion member adjustment temperature and the second thermal expansion member adjustment temperature of the nozzle to be adjusted are calculated based on a preset thermal expansion and contraction change calculation formula according to the difference between the nozzle hole spacing and the standard nozzle hole spacing and the difference between the nozzle head spacing and the standard nozzle head spacing, including:

[0035] Calculating the difference between the nozzle spacing and the nozzle standard spacing to obtain the nozzle spacing deviation;

[0036] Calculating the difference between the nozzle hole spacing and the nozzle hole standard spacing to obtain the nozzle hole spacing deviation;

[0037] By using a preset formula for calculating the change in thermal expansion and contraction, based on the nozzle spacing deviation and the nozzle hole spacing deviation, the second thermal expansion component adjustment temperature of the nozzle to be adjusted corresponding to the nozzle spacing deviation and the first thermal expansion component adjustment temperature of the nozzle to be adjusted corresponding to the nozzle hole spacing deviation are calculated.

[0038] Optionally, adjusting the temperature of the first thermal expansion member of the nozzle to be adjusted to the first thermal expansion member adjustment temperature, and adjusting the temperature of the second thermal expansion member of the nozzle to be adjusted to the second thermal expansion member adjustment temperature, so that the nozzle spacing after adjustment is equal to the nozzle standard spacing, and the nozzle hole spacing after adjustment is equal to the nozzle standard spacing, includes:

[0039] Adjusting the temperature of the first thermal expansion member of the nozzle to be adjusted to the first thermal expansion member adjustment temperature, and adjusting the temperature of the second thermal expansion member of the nozzle to be adjusted to the second thermal expansion member adjustment temperature;

[0040] Obtain the adjusted nozzle spacing and the adjusted nozzle hole spacing;

[0041] Determine whether the difference between the adjusted nozzle spacing and the standard nozzle spacing and the difference between the adjusted nozzle hole spacing and the standard nozzle hole spacing are both equal to 0; if not, use the difference that is not equal to 0 as the corresponding deviation value, and return to the step of calculating the adjustment temperature; if so, determine that the adjusted nozzle spacing is equal to the standard nozzle spacing and determine that the adjusted nozzle hole spacing is equal to the standard nozzle hole spacing.

[0042] Optionally, after determining that the adjusted nozzle spacing is equal to the standard nozzle spacing and determining that the adjusted nozzle hole spacing is equal to the standard nozzle hole spacing, the method further includes:

[0043] The nozzle position of the nozzle to be adjusted is fixed by a fixing module.

[0044] Beneficial effect: The nozzle splicing adjustment method provided in the present application adjusts the temperature of the first thermal expansion member of the nozzle to be adjusted to the first thermal expansion member adjustment temperature, and adjusts the temperature of the second thermal expansion member of the nozzle to be adjusted to the second thermal expansion member adjustment temperature, so that the nozzle spacing after adjustment is equal to the standard nozzle spacing, and the nozzle hole spacing after adjustment is equal to the standard nozzle hole spacing, which solves the problems of poor adjustment accuracy and low adjustment efficiency in the existing nozzle splicing adjustment method, and realizes precise fine-tuning of the nozzle position through the principle of thermal expansion and contraction, thereby improving the adjustment efficiency during nozzle splicing. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic structural diagram of the nozzle splicing adjustment device provided in an embodiment of the present application.

[0046] Figure 2 Flowchart of the nozzle splicing adjustment method provided in an embodiment of the present application.

[0047] Figure 3 This is a structural diagram of the nozzle when splicing.

[0048] Figure 4 Schematic diagram of nozzle spacing and nozzle hole spacing.

[0049] Explanation of reference numerals: 1. Adjustment module; 2. Fixing module; 3. Nozzle; 4. Horizontal coordinate adjustment module; 5. Vertical coordinate adjustment module; 6. First thermal expansion member; 7. First temperature adjustment module; 8. Second thermal expansion member; 9. Second temperature adjustment module; 10. First temperature adjustment unit; 11. Second temperature adjustment unit; 12. First temperature sensor; 13. Second temperature sensor; 14. Base; 15. Limit module; 16. Limit spring; 17. Fixing bolt; 18. First thermal insulation layer; 19. Second thermal insulation layer. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work fall within the scope of protection of the present application.

[0051] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0052] Please refer to Figure 1 , Figure 1 The nozzle splicing adjustment device provided in the embodiment of the present application is used to adjust the nozzle position when the nozzle is spliced, including an adjustment module 1, a fixing module 2, a nozzle 3, an image acquisition module and a control module ( Figure 1 The image acquisition module and the control module are not drawn);

[0053] The adjustment module 1 includes a horizontal coordinate adjustment module 4 and a vertical coordinate adjustment module 5, respectively arranged in two mutually perpendicular directions on the outer peripheral surface of the nozzle 3. The horizontal coordinate adjustment module 4 is provided with a first thermal expansion member 6 and a first temperature adjustment module 7, and the vertical coordinate adjustment module 5 is provided with a second thermal expansion member 8 and a second temperature adjustment module 9. The first thermal expansion member 6 and the second thermal expansion member 8 are respectively in close contact with the nozzle 3. The adjustment module 1 is used to adjust the temperatures of the first thermal expansion member 6 and the second thermal expansion member 8 through the first temperature adjustment module 7 and the second temperature adjustment module 9, respectively, so that the thicknesses of the first thermal expansion member 6 and the second thermal expansion member 8 change respectively under the effect of thermal expansion and contraction, so as to drive the nozzle 3 to move the horizontal coordinate and the vertical coordinate, thereby adjusting the position of the nozzle 3;

[0054] The fixing module 2 is used to fix the position of the nozzle 3 after the nozzle 3 moves;

[0055] The image acquisition module is arranged opposite to the nozzle 3, and is used to photograph the nozzle 3 when the nozzle 3 is being spliced ​​to obtain the position of the nozzle 3;

[0056] The control module is used to control the nozzle splicing adjustment device.

[0057] In specific applications, the adjustment module 1 refers to a component used to adjust the position of the nozzle 3, which can be specifically implemented by a horizontal coordinate adjustment module 4 and a vertical coordinate adjustment module 5. In the scheme, it is used to drive the nozzle 3 to move through temperature changes to solve the problem of poor accuracy. The fixing module 2 refers to a component used to fix the position of the nozzle 3, which can be specifically implemented by a limit structure or bolts. In the scheme, it is used to maintain the position stable after the nozzle 3 moves to prevent deviation. The nozzle 3 refers to the component that prints ink and is the object that needs to be adjusted in the scheme. The horizontal coordinate adjustment module 4 refers to a component arranged on one side of the nozzle 3, which specifically includes a first thermal expansion component 6 and a first temperature adjustment module 7. In the scheme, it is used to control the lateral movement of the nozzle 3. The vertical coordinate adjustment module 5 refers to a component arranged on the other side of the nozzle 3 adjacent to the horizontal coordinate adjustment module 4, which specifically includes a second thermal expansion component 8 and a second temperature adjustment module 9. In the scheme, it is used to control the vertical movement of the nozzle 3. The first thermal expansion component 6 refers to a component that can achieve thermal expansion and contraction, which can be specifically implemented by a metal with a high thermal expansion coefficient such as copper or aluminum. In the scheme, it drives the nozzle 3 to move laterally through thickness changes. The first temperature adjustment module 7 is a component used to adjust the temperature of the first thermal expansion element 6 and, in this solution, is used to precisely control temperature changes. The second thermal expansion element 8 is a component capable of thermal expansion and contraction. Specifically, it can be made of a metal with a high thermal expansion coefficient, such as copper or aluminum. In this solution, thickness changes drive the vertical movement of the nozzle 3. The second temperature adjustment module 9 is a component used to adjust the temperature of the second thermal expansion element 8 and, in this solution, is used to precisely control temperature changes. The image acquisition module is positioned opposite the nozzle 3 and is used to capture a position image of the nozzle 3 to obtain displacement information of the nozzle 3, thereby enabling precise adjustment during nozzle splicing. The control module is used to control the nozzle splicing adjustment device, namely, the image acquisition module and the adjustment module 1. The image acquisition module obtains the position information of the nozzle 3. The control module 1 adjusts the temperature to adjust the thickness of the thermal expansion elements (the first thermal expansion element 6 and the second thermal expansion element 8) under the effect of thermal expansion and contraction, causing a slight displacement of the nozzle 3 to adjust the position of the nozzle 3. This forms a closed-loop control system, replacing mechanical drive methods and improving adjustment accuracy and efficiency.

[0058] The adjustment module 1 adjusts the temperature of the first thermal expansion member 6 and the second thermal expansion member 8 through the first temperature adjustment module 7 and the second temperature adjustment module 9, respectively, causing the thickness to change under the effects of thermal expansion and contraction. The adjustment module drives the nozzle 3 to move in the horizontal and vertical coordinates, thereby adjusting the position of the nozzle 3. The fixing module 2 fixes the position of the nozzle 3 after it moves to avoid subsequent offset. This temperature-based method ensures accurate calculation and control of the change amount. Compared with the existing technology, which uses an adjustment screw or motor drive, the accuracy is limited by mechanical components and vibration affects the adjustment results. This solution adopts the principle of thermal expansion and contraction, has no mechanical moving parts, avoids vibration interference, and achieves more precise and efficient adjustment.

[0059] When the temperature of the thermal expansion member (the first thermal expansion member 6 and the second thermal expansion member 8) is adjusted to change the thickness, the change in thickness can be obtained by a preset thermal expansion and contraction calculation formula, wherein the thermal expansion and contraction calculation formula is specifically: ,in, is the change in length (or thickness), is the initial length (or initial thickness) of the thermal expansion component, is the thermal expansion coefficient of the thermal expansion component, By controlling the temperature of the thermal expansion member (the first thermal expansion member 6 and the second thermal expansion member 8) using the thermal expansion and contraction variation calculation formula, its thickness or length can be precisely controlled, thereby achieving micron-level or even nanometer-level displacement adjustment.

[0060] The nozzle splicing adjustment device provided in the present application adjusts the temperatures of the first thermal expansion member and the second thermal expansion member respectively through the adjustment module, so that the thicknesses of the first thermal expansion member and the second thermal expansion member change respectively under the thermal expansion and contraction effects, so as to drive the nozzle to move the horizontal coordinate and the vertical coordinate, thereby adjusting the position of the nozzle, solving the problems of poor adjustment accuracy and low adjustment efficiency in the existing nozzle splicing adjustment method, and realizing precise fine-tuning of the nozzle position through the principle of thermal expansion and contraction, thereby improving the adjustment efficiency during nozzle splicing.

[0061] Specifically, the first temperature regulating module 7 and the second temperature regulating module 9 are respectively provided with a temperature regulating unit and a temperature sensor, which are respectively recorded as a first temperature regulating unit 10, a second temperature regulating unit 11, a first temperature sensor 12 and a second temperature sensor 13; the first temperature regulating unit 10 is fixedly connected to the first thermal expansion member 6, and the second temperature regulating unit 11 is fixedly connected to the second thermal expansion member 8; the first temperature sensor 12 is fixedly connected to the first thermal expansion member 6, and the second temperature sensor 13 is fixedly connected to the second thermal expansion member 8;

[0062] The first temperature regulating unit 10 and the second temperature regulating unit 11 are used to regulate the temperatures of the first thermal expansion member 6 and the second thermal expansion member 8, respectively, so that the thicknesses of the first thermal expansion member 6 and the second thermal expansion member 8 change under the effects of thermal expansion and contraction, thereby adjusting the position of the nozzle 3;

[0063] The first temperature sensor 12 and the second temperature sensor 13 are used to obtain the temperatures of the first thermal expansion member 6 and the second thermal expansion member 8 respectively.

[0064] In specific applications, the first temperature adjustment module 7 and the second temperature adjustment module 9 are respectively provided with a temperature adjustment unit and a temperature sensor. The temperature adjustment unit can be implemented using a resistance wire (for heating) and a semiconductor refrigeration plate (or a water cooling system for cooling). The temperature adjustment unit (the first temperature adjustment unit 10 or the second temperature adjustment unit 11) is fixedly connected to the thermal expansion element (the first thermal expansion element 6 or the second thermal expansion element 8), allowing heat to be directly transferred. The temperature sensor (the first temperature sensor 12 or the second temperature sensor 13) is fixedly connected to the thermal expansion element (the first thermal expansion element 6 or the second thermal expansion element 8) to obtain temperature data in real time. Based on the principle of thermal expansion and contraction, the temperature adjustment unit controls the temperature of the thermal expansion element (the first thermal expansion element 6 or the second thermal expansion element 8), causing the thickness of the thermal expansion element (the first thermal expansion element 6 or the second thermal expansion element 8) to change. Temperature data feedback is used to adjust the temperature control operation, forming a closed-loop control system. Thus, the temperature of the thermal expansion member (the first thermal expansion member 6 or the second thermal expansion member 8) is precisely controlled, so that the thickness of the thermal expansion member (the first thermal expansion member 6 or the second thermal expansion member 8) changes under the thermal expansion and contraction effect to drive the nozzle 3 to move, thereby solving the problems of poor position adjustment accuracy and low efficiency of the nozzle 3.

[0065] Preferably, if Figure 1 As shown, the first temperature sensor 12 can be embedded in the first thermal expansion element 6, and the second temperature sensor 13 can be embedded in the second thermal expansion element 8, so as to obtain more accurate thermal expansion element temperatures.

[0066] Specifically, the fixing module 2 includes a base 14 and a limiting module 15; the adjusting module 1, the nozzle 3 and the limiting module 15 are arranged in the base 14, and the adjusting module 1 and the limiting module 15 are respectively fixedly connected to the base 14; the limiting module 15 is arranged on both sides of the outer peripheral surface of the nozzle 3 opposite to the horizontal coordinate adjusting module 4 and the vertical coordinate adjusting module 5;

[0067] The base 14 is used to fix the positions of the adjustment module 1, the nozzle 3 and the limit module 15;

[0068] The limiting module 15 is used to limit the movement range of the nozzle 3 and fix the position of the nozzle 3 after movement.

[0069] In specific applications, base 14 refers to a supporting structure, which can be implemented using a metal plate or plastic plate. Its function is to fix the limit module 15 and the nozzle 3 to enhance stability. Base 14 integrates the adjustment module 1, nozzle 3, and limit module 15 into one body, ensuring the stability of the overall structure. The limit modules 15 are arranged on the outer surface of the nozzle 3 on opposite sides of the horizontal and vertical adjustment modules 4 and 5. They cooperate with the horizontal and vertical adjustment modules 4 and 5 arranged on the outer surface of the nozzle 3 in two mutually perpendicular directions to limit the displacement range of the nozzle 3 and directly fix the position of the nozzle 3 after movement.

[0070] Specifically, the limiting module 15 includes a limiting spring 16 and a fixing bolt 17; the limiting spring 16 and the fixing bolt 17 are fixedly connected to the base 14 respectively;

[0071] The limit spring 16 is used to push the nozzle 3 so that the nozzle 3 is in close contact with the first thermal expansion member 6 and the second thermal expansion member 8 respectively, thereby limiting the movement range of the nozzle 3;

[0072] The fixing bolt 17 is used to fix the position of the nozzle head 3 after the nozzle head 3 moves.

[0073] In specific applications, the limit module 15 is a component used to limit the movement of the nozzle 3 and fix its position. Specifically, it can be implemented using a combination of a limit spring 16 and a fixing bolt 17. Its function is to provide thrust and lock the position to eliminate play. The limit spring 16 is an elastic element, specifically a coil spring or compression spring, which pushes the nozzle 3 into close contact with the thermal expansion elements (the first thermal expansion element 6 and the second thermal expansion element 8) to eliminate positional deviation. The fixing bolt 17 is a threaded fastener, specifically a screw or bolt, which locks the position of the nozzle 3 after movement to prevent displacement.

[0074] During nozzle adjustment, the retaining spring 16 continuously pushes the nozzle 3, ensuring seamless contact between the nozzle 3 and the first and second thermal expansion members 6 and 8, thereby eliminating any looseness. After the nozzle 3 is moved, the fixing bolt 17 is tightened to secure the nozzle 3, simplifying the locking process. The synergistic effect of the retaining spring 16 and fixing bolt 17 ensures that the nozzle 3 remains stably fixed in the desired position after adjustment.

[0075] Specifically, the regulating module is further provided with a heat insulating layer; the heat insulating layer includes a first heat insulating layer 18 and a second heat insulating layer 19; the first heat insulating layer 18 is located between the first temperature regulating unit 10 and the base 14, and the second heat insulating layer 19 is located between the second temperature regulating unit 11 and the base 14;

[0076] The heat insulating layer is used to isolate the base 14 from the influence of temperature changes caused by the temperature regulating unit.

[0077] In specific applications, an insulation layer is added to the adjustment module 1, the first insulation layer 18 is located between the first temperature adjustment unit 10 and the base 14, and the second insulation layer 19 is located between the second temperature adjustment unit 11 and the base 14; the insulation layer reduces heat transfer through physical isolation, maintains the temperature of the base 14 stable, and prevents the base 14 from deformation due to thermal expansion or contraction, making the position adjustment process of the nozzle 3 more reliable.

[0078] In an optional embodiment, a heat insulation layer may be provided between the heat expansion member (the first heat expansion member 6 or the second heat expansion member 8 ) and the nozzle 3 to ensure stable use of the nozzle 3 .

[0079] Specifically, the image acquisition module includes a visual feedback unit and an image processing unit;

[0080] The visual feedback unit is used to photograph the nozzle 3 to obtain an image of the nozzle 3;

[0081] The image processing unit is used to detect the position of the nozzle 3 based on the image.

[0082] In a specific application, the image acquisition module is arranged relative to the nozzle 3 and is used to capture the position of the nozzle 3. The image acquisition module includes a visual feedback unit and an image processing unit. The visual feedback unit includes a high-resolution camera, a microscope lens, a light source and other equipment, which can capture the micron-level displacement of the nozzle 3 and provide a basis for subsequent image processing and displacement adjustment. The image processing unit determines whether the displacement of the nozzle 3 has reached the target position based on the image captured by the visual feedback unit. The image processing unit includes an image processing algorithm and an FPGA. After acquiring the position image of the nozzle 3, the image processing unit calculates the position information of the nozzle 3 through the image processing algorithm, ROI extraction, sub-pixel positioning, coordinate transformation and other operations, and calculates the position deviation by comparing the position information with the target position. At the same time, the FPGA is used to accelerate the above image processing process and reduce latency. After obtaining the position deviation, the control module controls the adjustment module 1 to execute an action, so that the nozzle 3 gradually moves to the target position. This forms a closed-loop control system, replacing the mechanical drive method and improving the adjustment accuracy and efficiency.

[0083] Please refer to Figure 2 , Figure 2 The nozzle splicing adjustment method provided in the embodiment of the present application is applied to the nozzle splicing adjustment device described above to adjust the nozzle position when splicing the nozzles, including:

[0084] Step S101, obtaining the nozzle spacing and the nozzle hole spacing of the corresponding nozzle holes of the two nozzles to be spliced, and obtaining the nozzle standard spacing and nozzle hole standard spacing when the two nozzles to be spliced ​​are correctly spliced;

[0085] Step S102, setting one of the two nozzles to be spliced ​​as the nozzle to be adjusted;

[0086] Step S103, calculating the first thermal expansion member adjustment temperature and the second thermal expansion member adjustment temperature of the nozzle to be adjusted based on the difference between the nozzle hole spacing and the standard nozzle hole spacing and the difference between the nozzle head spacing and the standard nozzle head spacing using a preset thermal expansion and contraction change calculation formula;

[0087] Step S104, adjust the temperature of the first thermal expansion component of the nozzle to be adjusted to the first thermal expansion component adjustment temperature, and adjust the temperature of the second thermal expansion component of the nozzle to be adjusted to the second thermal expansion component adjustment temperature, so that the adjusted nozzle spacing is equal to the standard nozzle spacing, and the adjusted nozzle hole spacing is equal to the standard nozzle hole spacing.

[0088] The manufacturing method of the nozzle splicing adjustment device adjusts the temperatures of the first thermal expansion member and the second thermal expansion member respectively through the adjustment module, so that the thicknesses of the first thermal expansion member and the second thermal expansion member change respectively under the thermal expansion and contraction effects, so as to drive the nozzle to move the horizontal coordinate and the vertical coordinate, thereby adjusting the position of the nozzle, solving the problems of poor adjustment accuracy and low adjustment efficiency in the existing nozzle splicing adjustment method, and realizing precise fine-tuning of the nozzle position through the principle of thermal expansion and contraction, thereby improving the adjustment efficiency during nozzle splicing.

[0089] Specifically, in step S101, the nozzle spacing and the nozzle hole spacing of the corresponding nozzle holes in the two nozzles to be spliced ​​are obtained through the image acquisition module, as well as the nozzle standard spacing and nozzle hole standard spacing between adjacent nozzles when the nozzles to be spliced ​​are correctly spliced. Among them, the nozzle spacing refers to the distance between the nozzles to be spliced, the nozzle hole spacing refers to the distance between the corresponding nozzle holes on the nozzles to be spliced ​​(that is, the two nozzle holes interpolated in the arrangement direction in the nozzles to be spliced), the nozzle standard spacing refers to the distance between the nozzles when they are correctly spliced, and the nozzle hole standard spacing refers to the distance between the nozzle holes when they are correctly spliced. Figure 4 As shown, Figure 4 Schematic diagram of nozzle spacing and nozzle hole spacing, where x is the nozzle hole spacing, y is the nozzle spacing, rectangle a and rectangle b are nozzles, circle c and circle d are nozzle holes, and arrows indicate distance.

[0090] Specifically, in step S102, according to actual needs, one of the two nozzles to be spliced ​​is set as a nozzle to be adjusted, which is used to move the nozzle position to complete nozzle splicing, and the other nozzle is set as a fixed nozzle, whose position remains fixed.

[0091] Specifically, in step S103, the first thermal expansion member adjustment temperature and the second thermal expansion member adjustment temperature are calculated based on the difference between the nozzle hole spacing and the standard nozzle hole spacing and the difference between the nozzle head spacing and the standard nozzle head spacing using a preset thermal expansion and contraction change calculation formula, including:

[0092] Calculate the difference between the nozzle spacing and the standard nozzle spacing to obtain the nozzle spacing deviation;

[0093] Calculate the difference between the nozzle hole spacing and the standard nozzle hole spacing to obtain the nozzle hole spacing deviation;

[0094] Through the preset thermal expansion and contraction change calculation formula, based on the nozzle spacing deviation and the nozzle hole spacing deviation, the second thermal expansion component adjustment temperature of the nozzle to be adjusted corresponding to the nozzle spacing deviation and the first thermal expansion component adjustment temperature of the nozzle to be adjusted corresponding to the nozzle hole spacing deviation are calculated.

[0095] In step S103, the difference between the nozzle spacing and the standard nozzle spacing, as well as the difference between the nozzle hole spacing and the standard nozzle hole spacing are calculated respectively, and the nozzle spacing deviation and the nozzle hole spacing deviation are calculated. Through the preset thermal expansion and contraction change calculation formula, according to the nozzle spacing deviation and the nozzle hole spacing deviation, the temperature change corresponding to the nozzle spacing deviation and the temperature change corresponding to the nozzle hole spacing deviation are calculated. Combined with the initial temperature of the first thermal expansion component of the nozzle to be adjusted and the initial temperature of the second thermal expansion component of the nozzle to be adjusted, the adjustment temperature of the second thermal expansion component of the nozzle to be adjusted corresponding to the nozzle spacing deviation and the adjustment temperature of the first thermal expansion component of the nozzle to be adjusted corresponding to the nozzle hole spacing deviation are calculated.

[0096] The preset calculation formula for the thermal expansion and contraction variation is as follows: , is the change in length (or thickness), is the initial length (or initial thickness) of the thermal expansion component, is the thermal expansion coefficient of the thermal expansion component, is the temperature change. By controlling the temperature of the thermal expansion elements (first and second thermal expansion elements) using the thermal expansion and contraction change calculation formula, their thickness or length can be precisely controlled, thereby achieving micron-level or even nanometer-level displacement adjustment.

[0097] In step S104, the temperature of the first thermal expansion member of the nozzle to be adjusted is adjusted to the first thermal expansion member adjustment temperature, and the temperature of the second thermal expansion member of the nozzle to be adjusted is adjusted to the second thermal expansion member adjustment temperature, so that the nozzle spacing after adjustment is equal to the standard nozzle spacing, and the nozzle hole spacing after adjustment is equal to the standard nozzle hole spacing, including:

[0098] Adjusting the temperature of the first thermal expansion member of the nozzle to be adjusted to the first thermal expansion member adjustment temperature, and adjusting the temperature of the second thermal expansion member of the nozzle to be adjusted to the second thermal expansion member adjustment temperature;

[0099] Obtain the adjusted nozzle spacing and the adjusted nozzle hole spacing;

[0100] Determine whether the difference between the adjusted nozzle spacing and the standard nozzle spacing and the difference between the adjusted nozzle hole spacing and the standard nozzle hole spacing are both equal to 0; if not, use the difference that is not equal to 0 as the corresponding deviation value and return to the step of calculating the adjustment temperature; if so, determine that the adjusted nozzle spacing is equal to the standard nozzle spacing and determine that the adjusted nozzle hole spacing is equal to the standard nozzle hole spacing.

[0101] In step S104, the first thermal expansion component of the nozzle to be adjusted is adjusted to the first thermal expansion component adjustment temperature, so that the thickness of the first thermal expansion component changes corresponding to the temperature difference, thereby driving the nozzle to move the horizontal coordinate, and the second thermal expansion component of the nozzle to be adjusted is adjusted to the second thermal expansion component adjustment temperature, so that the thickness of the second thermal expansion component changes corresponding to the temperature difference, thereby driving the nozzle to move the vertical coordinate.

[0102] Obtain the position of the nozzle to be adjusted after temperature adjustment, and obtain the adjusted nozzle spacing and the adjusted nozzle hole spacing from the nozzle to be spliced, and determine whether the difference between the adjusted nozzle spacing and the standard nozzle spacing and the difference between the adjusted nozzle hole spacing and the standard nozzle hole spacing are both equal to 0; when either the difference between the adjusted nozzle spacing and the standard nozzle spacing or the difference between the adjusted nozzle hole spacing and the standard nozzle hole spacing is not equal to 0, use the difference that is not equal to 0 as the corresponding deviation value (if the difference between the adjusted nozzle spacing and the standard nozzle spacing is not equal to 0, use the difference that is not equal to 0 as the nozzle spacing deviation; if the difference between the adjusted nozzle hole spacing and the standard nozzle hole spacing is not equal to 0, use the difference that is not equal to 0 as the nozzle hole spacing deviation; if both differences are not 0, use both differences as corresponding deviation values), and return to the step of calculating the adjustment temperature; if so, determine that the adjusted nozzle spacing is equal to the standard nozzle spacing and that the adjusted nozzle hole spacing is equal to the standard nozzle hole spacing.

[0103] In an optional embodiment, when the number of nozzles to be spliced ​​is greater than 2, the nozzle spacing and the nozzle hole spacing of the corresponding nozzles of two adjacent nozzles can be obtained in turn, the adjustment temperature (the adjustment temperature of the first thermal expansion component and the adjustment temperature of the second thermal expansion component) can be calculated, and the temperature of the nozzle to be adjusted can be adjusted according to the adjustment temperature, so that the nozzle spacing of adjacent nozzles after adjustment is equal to the standard nozzle spacing, and the nozzle hole spacing of adjacent nozzles after adjustment is equal to the standard nozzle hole spacing, and then all nozzles to be spliced ​​are traversed, and the nozzle whose position is first determined among all adjacent nozzles is used as the fixed nozzle, and the other nozzle among the adjacent nozzles is used as the nozzle to be adjusted, and the position of the nozzle to be adjusted is adjusted, and the nozzle hole spacing and nozzle spacing of all adjacent nozzles are adjusted to the standard nozzle hole spacing and standard nozzle spacing in turn to complete the nozzle splicing.

[0104] In step S104, after determining that the adjusted nozzle spacing is equal to the standard nozzle spacing and determining that the adjusted nozzle hole spacing is equal to the standard nozzle hole spacing, the method further includes:

[0105] The nozzle position of the nozzle to be adjusted is fixed by the fixing module.

[0106] In step S104, after the nozzle spacing and nozzle hole spacing are confirmed to be equal to the corresponding standard values ​​(standard nozzle spacing and standard nozzle hole spacing), the fixing module is activated to lock the position of the nozzle to be adjusted. This utilizes the mechanical locking mechanism of the fixing module to eliminate the risk of movement at the moment the adjustment is completed, ensure the long-term stability of the position, avoid deviation due to external interference, and thus maintain high-precision splicing.

[0107] As can be seen from the above, the nozzle splicing adjustment method obtains the nozzle spacing and the nozzle hole spacing of the corresponding nozzle holes in the two nozzles to be spliced, and obtains the standard nozzle spacing and the standard nozzle hole spacing of the two nozzles to be spliced ​​when they are correctly spliced. Through the preset thermal expansion and contraction change calculation formula, according to the difference between the nozzle hole spacing and the standard nozzle hole spacing and the difference between the nozzle spacing and the standard nozzle spacing, the first thermal expansion component adjustment temperature and the second thermal expansion component adjustment temperature are calculated, and one of the two nozzles to be spliced ​​is set as the nozzle to be adjusted, and the temperature of the first thermal expansion component of the nozzle to be adjusted is adjusted to the first thermal expansion component adjustment temperature, and the temperature of the second thermal expansion component of the nozzle to be adjusted is adjusted to the second thermal expansion component adjustment temperature, so that the adjusted nozzle spacing is equal to the standard nozzle spacing, and the adjusted nozzle hole spacing is equal to the standard nozzle hole spacing, so as to solve the problems of poor adjustment accuracy and low adjustment efficiency in the existing nozzle splicing adjustment method, and realize precise fine-tuning of the nozzle position through the principle of thermal expansion and contraction, thereby improving the adjustment efficiency during nozzle splicing.

[0108] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interface, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0109] In addition, the units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, and may be located in one place or distributed across multiple network units. Some or all of these units may be selected based on actual needs to achieve the purpose of the solution of this embodiment.

[0110] Furthermore, the functional modules in each embodiment of the present application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0111] In this document, relational terms such as first and second, etc. are used merely to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any actual relationship or order between these entities or operations.

[0112] The above description is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, various modifications and variations of the present application are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A nozzle splicing adjustment device, used to adjust the nozzle position when splicing the nozzle, characterized in that: It includes an adjustment module (1), a fixing module (2), a nozzle (3), an image acquisition module and a control module; The regulating module (1) comprises a horizontal coordinate regulating module (4) and a vertical coordinate regulating module (5) respectively arranged on two mutually perpendicular directions of the outer peripheral surface of the nozzle (3); the horizontal coordinate regulating module (4) is provided with a first thermal expansion member (6) and a first temperature regulating module (7), and the vertical coordinate regulating module (5) is provided with a second thermal expansion member (8) and a second temperature regulating module (9); the first thermal expansion member (6) and the second thermal expansion member (8) are respectively in close contact with the nozzle (3); the regulating module (1) is used to regulate the temperature of the first thermal expansion member (6) and the second thermal expansion member (8) through the first temperature regulating module (7) and the second temperature regulating module (9), so that the thickness of the first thermal expansion member (6) and the second thermal expansion member (8) respectively changes under the effect of thermal expansion and contraction, so as to drive the nozzle (3) to move the horizontal coordinate and the vertical coordinate, thereby adjusting the position of the nozzle (3); The fixing module (2) is used to fix the position of the nozzle (3) after the nozzle (3) moves; The image acquisition module is arranged opposite to the nozzle (3), and is used to photograph the nozzle (3) when the nozzle (3) is spliced ​​to obtain the position of the nozzle (3); The control module is used to control the nozzle splicing adjustment device; When the regulating module (1) is used to regulate the temperature of the first thermal expansion member (6) and the second thermal expansion member (8) respectively through the first temperature regulating module (7) and the second temperature regulating module (9), so that the thickness of the first thermal expansion member (6) and the second thermal expansion member (8) respectively changes under the thermal expansion and contraction effect, the thickness change of the first thermal expansion member (6) and the second thermal expansion member (8) can be obtained by a preset thermal expansion and contraction change calculation formula, and the preset thermal expansion and contraction change calculation formula is specifically: ,in, is the thickness change, is the initial thickness of the thermal expansion member, is the thermal expansion coefficient of the thermal expansion component, is the temperature change.

2. The nozzle splicing adjustment device according to claim 1, characterized in that: The first temperature regulating module (7) and the second temperature regulating module (9) are respectively provided with a temperature regulating unit and a temperature sensor, which are respectively denoted as a first temperature regulating unit (10), a second temperature regulating unit (11), a first temperature sensor (12) and a second temperature sensor (13); the first temperature regulating unit (10) is fixedly connected to the first thermal expansion member (6), and the second temperature regulating unit (11) is fixedly connected to the second thermal expansion member (8); the first temperature sensor (12) is fixedly connected to the first thermal expansion member (6), and the second temperature sensor (13) is fixedly connected to the second thermal expansion member (8); The first temperature regulating unit (10) and the second temperature regulating unit are used to regulate the temperature of the first thermal expansion member (6) and the second thermal expansion member (8), respectively, so that the thickness of the first thermal expansion member (6) and the second thermal expansion member (8) respectively change under the effect of thermal expansion and contraction, thereby regulating the position of the nozzle (3); The first temperature sensor (12) and the second temperature sensor (13) are used to obtain the temperatures of the first thermal expansion component (6) and the second thermal expansion component (8), respectively.

3. The nozzle splicing adjustment device according to claim 2, characterized in that: The fixing module (2) includes a base (14) and a limiting module (15); the adjusting module (1), the nozzle (3) and the limiting module (15) are arranged in the base (14), and the adjusting module (1) and the limiting module (15) are respectively fixedly connected to the base (14); the limiting modules (15) are respectively arranged on two sides of the outer peripheral surface of the nozzle (3) opposite to the horizontal coordinate adjusting module (4) and the vertical coordinate adjusting module (5); The base (14) is used to fix the positions of the adjustment module (1), the nozzle (3) and the limit module (15); The limiting module (15) is used to limit the movement range of the nozzle (3) and fix the position of the nozzle (3) after movement.

4. The nozzle splicing adjustment device according to claim 3, characterized in that: The limiting module (15) includes a limiting spring (16) and a fixing bolt (17); the limiting spring (16) and the fixing bolt (17) are respectively fixedly connected to the base (14); The limit spring (16) is used to push the nozzle (3) so that the nozzle (3) is in close contact with the first thermal expansion member (6) and the second thermal expansion member (8), respectively, thereby limiting the movement range of the nozzle (3); The fixing bolt (17) is used to fix the position of the nozzle (3) after the nozzle (3) moves.

5. The nozzle splicing adjustment device according to claim 4, characterized in that: The regulating module is further provided with a heat-insulating layer; the heat-insulating layer comprises a first heat-insulating layer (18) and a second heat-insulating layer (19); the first heat-insulating layer (18) is located between the first temperature regulating unit (10) and the base (14), and the second heat-insulating layer (19) is located between the second temperature regulating unit (11) and the base (14); The heat insulation layer is used to isolate the base (14) from the influence of the temperature change caused by the temperature regulating unit.

6. The nozzle splicing adjustment device according to any one of claims 1 to 5, characterized in that: The image acquisition module includes a visual feedback unit and an image processing unit; The visual feedback unit is used to photograph the nozzle (3) to obtain an image of the nozzle (3); The image processing unit is used to detect the position of the nozzle (3) based on the image.

7. A nozzle splicing adjustment method, characterized in that: The nozzle splicing adjustment device according to claim 6 is used to adjust the nozzle position when the nozzles are spliced, comprising: Obtain the nozzle spacing and the nozzle hole spacing of the corresponding nozzle holes of the two nozzles to be spliced, and obtain the nozzle standard spacing and nozzle hole standard spacing when the two nozzles to be spliced ​​are correctly spliced; Setting one of the two nozzles to be spliced ​​as the nozzle to be adjusted; The first thermal expansion member adjustment temperature and the second thermal expansion member adjustment temperature of the nozzle to be adjusted are calculated based on the difference between the nozzle hole spacing and the standard nozzle hole spacing and the difference between the nozzle head spacing and the standard nozzle head spacing using a preset thermal expansion and contraction change calculation formula; Adjusting the temperature of the first thermal expansion member of the nozzle to be adjusted to the first thermal expansion member adjustment temperature, and adjusting the temperature of the second thermal expansion member of the nozzle to be adjusted to the second thermal expansion member adjustment temperature, so that the nozzle spacing after adjustment is equal to the nozzle standard spacing, and the nozzle hole spacing after adjustment is equal to the nozzle standard spacing; The nozzle spacing refers to the distance between two nozzles interpolated in the arrangement direction in the nozzles to be spliced; The preset thermal expansion and contraction variation calculation formula is specifically: ,in, is the change in length or thickness, is the initial length or initial thickness of the thermal expansion component, is the thermal expansion coefficient of the thermal expansion component, is the temperature change.

8. The nozzle splicing adjustment method according to claim 7, characterized in that: The first thermal expansion member adjustment temperature and the second thermal expansion member adjustment temperature of the nozzle to be adjusted are calculated based on a preset thermal expansion and contraction variation calculation formula, according to the difference between the nozzle hole spacing and the standard nozzle hole spacing and the difference between the nozzle head spacing and the standard nozzle head spacing, including: Calculating the difference between the nozzle spacing and the standard nozzle spacing to obtain the nozzle spacing deviation; Calculating the difference between the nozzle hole spacing and the nozzle hole standard spacing to obtain the nozzle hole spacing deviation; By using a preset formula for calculating the change in thermal expansion and contraction, based on the nozzle spacing deviation and the nozzle hole spacing deviation, the second thermal expansion component adjustment temperature of the nozzle to be adjusted corresponding to the nozzle spacing deviation and the first thermal expansion component adjustment temperature of the nozzle to be adjusted corresponding to the nozzle hole spacing deviation are calculated.

9. The nozzle splicing adjustment method according to claim 7, characterized in that: Adjusting the temperature of the first thermal expansion member of the nozzle to be adjusted to the first thermal expansion member adjustment temperature, and adjusting the temperature of the second thermal expansion member of the nozzle to be adjusted to the second thermal expansion member adjustment temperature, so that the nozzle spacing after adjustment is equal to the nozzle standard spacing, and the nozzle hole spacing after adjustment is equal to the nozzle standard spacing, including: Adjusting the temperature of the first thermal expansion member of the nozzle to be adjusted to the first thermal expansion member adjustment temperature, and adjusting the temperature of the second thermal expansion member of the nozzle to be adjusted to the second thermal expansion member adjustment temperature; Obtain the adjusted nozzle spacing and the adjusted nozzle hole spacing; Determine whether the difference between the adjusted nozzle spacing and the standard nozzle spacing and the difference between the adjusted nozzle hole spacing and the standard nozzle hole spacing are both equal to 0; if not, use the difference that is not equal to 0 as the corresponding deviation value, and return to the step of calculating the adjustment temperature; if so, determine that the adjusted nozzle spacing is equal to the standard nozzle spacing and determine that the adjusted nozzle hole spacing is equal to the standard nozzle hole spacing.

10. The nozzle splicing adjustment method according to claim 9, characterized in that: After determining that the adjusted nozzle spacing is equal to the standard nozzle spacing and determining that the adjusted nozzle hole spacing is equal to the standard nozzle hole spacing, the method further includes: The nozzle position of the nozzle to be adjusted is fixed by a fixing module.

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