Nozzle bottom plate adjustment device and adjustment method

Abstract

The present application provides a nozzle base plate adjustment device and adjustment method, the nozzle base plate adjustment device includes: a nozzle base plate, multiple conductive pillars and an adjustment component; multiple conductive pillars are arranged at intervals on the nozzle base plate; one end of the conductive pillar extends between the nozzle base plate and the printing surface, and is used to electrically contact the conductive film at the corresponding position on the printing surface; the adjustment component is connected to the nozzle base plate. The nozzle base plate adjustment method includes: pressing the printing material onto the paper feed roller; attaching multiple conductive films to the printing surface; arranging multiple conductive pillars on the nozzle base plate; moving the nozzle base plate in a direction close to the printing surface until at least one conductive pillar is in electrical contact with the corresponding conductive film; adjusting the position of the nozzle base plate until all conductive pillars are in electrical contact with the corresponding conductive film. The conductive pillars are in electrical contact with the conductive film at the corresponding position on the printing surface to determine whether the corresponding position of the nozzle base plate is adjusted in place, with small errors and high adjustment accuracy, which is beneficial to printing quality.

Description

Technical Field

[0001] The present application belongs to the field of printing technology, and more specifically, relates to a nozzle base plate adjustment device and adjustment method. Background Art

[0002] Inkjet printers eject ink droplets through a nozzle, which land on the printed material to form the desired image or text. For materials such as books, periodicals, and labels, inkjet printers typically use a curved printing platform. The tension at both ends of the printed material presses the material against the feed rollers, forming a printed surface between the two rollers. To ensure effective printing, the nozzle is typically required to be parallel to the printed surface and maintain a preset distance.

[0003] Generally, the position of the nozzle base plate is adjusted to indirectly adjust the positional relationship between the nozzle and the printing surface. In traditional technology, the nozzle base plate is usually lowered to a preset position, and a feeler gauge is inserted between the nozzle base plate and the printing surface for testing. However, since the printing material is usually flexible, such as paper, plastic film or cloth, the printing material will be deformed when the feeler gauge is inserted between the two. In addition, when the printing material is not deformed, the feeler gauge is observed by the naked eye to see whether it is in contact with the printing material and the nozzle base plate at the same time. There are too many objects to observe, which is prone to errors. As a result, the adjustment accuracy is low, such as failure to maintain parallelism and inappropriate height, which affects the color registration effect and print quality. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a nozzle base plate adjustment device and adjustment method to solve the technical problems in the prior art that errors are easily generated when adjusting the position of the nozzle base plate and the adjustment accuracy is low.

[0005] To achieve the above objectives, the technical solution adopted in this application is to provide a nozzle base plate adjustment device, comprising:

[0006] Print head base plate, used to install the printing head;

[0007] A plurality of conductive posts are spaced apart on the nozzle base plate; one end of each conductive post extends between the nozzle base plate and the printing surface, and is used to electrically contact the conductive film at a position corresponding to the printing surface; and

[0008] An adjustment component is connected to the nozzle base plate and is used to adjust the position of the nozzle base plate relative to the printing surface.

[0009] The beneficial effect of the nozzle base plate adjustment device provided by the present application is that: compared with the prior art, the nozzle base plate adjustment device of the present application arranges multiple conductive columns at intervals on the nozzle base plate. In the process of moving the nozzle base plate as a whole toward the printing surface with the conductive film, when at least one conductive column is in electrical contact with the conductive film at the corresponding position of the printing surface, the overall movement of the nozzle base plate is stopped, and then the position of the nozzle base plate where the conductive columns that are not in electrical contact with the conductive film are located is adjusted by the adjustment component, so that the remaining conductive columns are in electrical contact with the conductive film at the corresponding position of the printing surface, thereby realizing the adjustment of the relative position between the nozzle base plate and the printing surface, and judging whether the corresponding position of the nozzle base plate is adjusted in place by the electrical contact between the conductive columns and the conductive film at the corresponding position on the printing surface, with small error and high adjustment accuracy, which can effectively ensure that the nozzle base plate is parallel to the printing surface and maintain a preset distance, thereby facilitating the improvement of the color registration effect and printing quality.

[0010] Optionally, when the conductive pillar is in electrical contact with the conductive film at a corresponding position on the printing surface, a conductive loop is formed, and a light-emitting lamp is provided on the conductive loop.

[0011] Optionally, the number of the conductive pillars is at least three, and at least three of the conductive pillars are not collinearly arranged.

[0012] Optionally, the number of the conductive pillars is four, and the four conductive pillars are respectively distributed on the four corners of the showerhead base plate.

[0013] Optionally, the nozzle base plate adjustment device also includes a plurality of insulating blocks spaced apart on the nozzle base plate, and the plurality of conductive columns are respectively arranged on the plurality of insulating blocks. The nozzle base plate is provided with avoidance holes for the conductive columns to pass through at positions corresponding to the insulating blocks.

[0014] Optionally, a first threaded hole is provided on the insulating block, and the conductive column includes a first threaded section, and the first threaded section is inserted into the first threaded hole and forms a threaded connection with the first threaded hole.

[0015] Optionally, the adjustment assembly includes a fixed frame, two mounting blocks located at both ends of the fixed frame, and at least two adjustment pins respectively connecting the two mounting blocks. The nozzle base plate is installed on the fixed frame, and the adjustment pins are threadedly connected to the fixed frame.

[0016] The present application also provides a method for adjusting a nozzle base plate, comprising the following steps:

[0017] Pressing the printing material onto the paper feed roller, wherein the printing material forms a printing surface facing the nozzle bottom plate;

[0018] attaching a plurality of conductive films to the printing surface;

[0019] A plurality of conductive posts are arranged on the nozzle base plate and are respectively arranged corresponding to the plurality of conductive films; one end of the conductive post extends between the nozzle base plate and the printing surface;

[0020] Moving the nozzle base plate toward the printing surface until at least one of the conductive pillars is in electrical contact with the corresponding conductive film;

[0021] The position of the showerhead base plate is adjusted until all the conductive pillars are in electrical contact with the corresponding conductive films.

[0022] Optionally, the number of the conductive films and the number of the conductive pillars are at least three, the three conductive films are not arranged collinearly, the three conductive pillars are not arranged collinearly, and at least three conductive pillars are respectively arranged corresponding to at least three conductive films.

[0023] Optionally, the conductive pillar is in electrical contact with the corresponding conductive film to form a conductive loop, and a light-emitting lamp is provided on the conductive loop.

[0024] The beneficial effect of the nozzle base plate adjustment method provided in the present application is that: compared with the existing technology, the nozzle base plate adjustment method provided in the present application uses the conductive column to electrically contact the conductive film at the corresponding position on the printing surface to determine whether the corresponding position of the nozzle base plate is adjusted in place, and as long as the conductive column contacts the conductive film at the corresponding position on the printing surface, the adjustment of the corresponding position of the nozzle base plate can be completed, and the printed material will not be deformed. The error is small and the adjustment accuracy is high. It can effectively ensure that the nozzle base plate is parallel to the printing surface and maintain a preset distance, which is beneficial to improving the color registration effect and printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 A schematic diagram of the structure of the nozzle base plate adjustment device provided in an embodiment of the present application;

[0027] Figure 2 The nozzle base plate adjustment state provided in the embodiment of the present application Figure 1 ;

[0028] Figure 3 for Figure 2 An enlarged schematic diagram of point A is shown;

[0029] Figure 4A circuit diagram formed by electrically connecting the conductive pillars and the conductive film provided in an embodiment of the present application;

[0030] Figure 5 A schematic diagram of a partially exploded structure of a nozzle base plate adjustment device provided in an embodiment of the present application;

[0031] Figure 6 A schematic structural diagram of a conductive column provided in an embodiment of the present application;

[0032] Figure 7 The nozzle base plate adjustment state provided in the embodiment of the present application Figure 2 .

[0033] Among them, the reference numerals in the figures are:

[0034] 10. Nozzle base plate; 11. Avoidance hole; 20. Conductive column; 21. First threaded section; 22. Contact section; 30. Printing material; 31. Printing surface; 40. Adjustment assembly; 41. Fixing frame; 411. Second threaded hole; 42. Mounting block; 421. Mounting hole; 422. Guide hole; 43. Adjustment pin; 431. Second threaded section; 44. Guide pin; 50. Conductive film; 60. Light-emitting lamp; 70. First wire; 80. Second wire; 90. Power supply; 100. Insulation block; 101. First threaded hole; 110. Paper feed roller; 120. Printing platform. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0036] It should be noted that, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," "fixed," and "set" should be understood broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0037] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0039] Please also refer to Figures 1 to 7 The nozzle base plate adjustment device provided in the embodiment of the present application is now described. The nozzle base plate adjustment device is used to adjust the relative position between the nozzle base plate 10 and the printing surface 31.

[0040] See also Figures 1 to 3 The nozzle base plate adjustment device includes a nozzle base plate 10, a conductive post 20, and an adjustment assembly 40. The nozzle base plate 10 is used to mount the printhead. A plurality of conductive posts 20 are provided, spaced apart on the nozzle base plate 10. One end of the conductive post 20 extends between the nozzle base plate 10 and the print surface 31, thereby electrically contacting the conductive film 50 at a corresponding position on the print surface 31. The adjustment assembly 40 is connected to the nozzle base plate 10 and is used to adjust the position of the nozzle base plate 10 relative to the print surface 31.

[0041] It should be noted that the printing surface 31 refers to the plane formed between the two adjacent paper feed rollers 110 facing the nozzle base plate 10 when the printing material 30 is pressed on the two adjacent paper feed rollers 110 of the printing platform 120. Figure 2 .

[0042] The nozzle base plate adjustment device provided in the present application is compared with the prior art. The nozzle base plate adjustment device provided in the present application is achieved by arranging multiple conductive pillars 20 at intervals on the nozzle base plate 10. During the process of moving the nozzle base plate 10 as a whole toward the printing surface 31 with the conductive film 50, when at least one conductive pillar 20 is in electrical contact with the conductive film 50 at the corresponding position of the printing surface 31, the overall movement of the nozzle base plate 10 is stopped, and then the position of the conductive pillar 20 that is not in electrical contact with the conductive film 50 is adjusted by the adjustment component 40, so that the remaining conductive pillars 20 are all in electrical contact with the conductive film 50 at the corresponding position of the printing surface 31, thereby achieving the adjustment of the relative position between the nozzle base plate 10 and the printing surface 31, and further achieving the adjustment of the relative position between the printing nozzle and the printing surface 31. The conductive pillar 20 is electrically contacted with the conductive film 50 at the corresponding position on the printing surface 31 to determine whether the corresponding position of the nozzle base plate 10 is adjusted into place. As long as the conductive pillar 20 contacts the conductive film 50 at the corresponding position of the printing surface 31, the adjustment of the corresponding position of the nozzle base plate 10 can be completed without causing deformation of the printing material 30. The error is small and the adjustment accuracy is high. It can effectively ensure that the nozzle base plate 10 is parallel to the printing surface 31 and maintains a preset distance, which is beneficial to improving the color registration effect and printing quality.

[0043] It should be noted that the thickness of the conductive film 50 is much smaller than the distance between the nozzle base plate 10 and the printing surface 31. It can be understood that when adjusting the distance between the nozzle base plate 10 and the printing surface 31, the thickness of the conductive film 50 has a very small effect on the adjustment error of the distance between the nozzle base plate 10 and the printing surface 31, which can be ignored.

[0044] In some embodiments of this application, please refer to Figure 4 When the conductive post 20 is in electrical contact with the conductive film 50 at a corresponding position on the printing surface 31, a conductive loop is formed, and a light-emitting lamp 60 is disposed on the conductive loop. Specifically, the conductive post 20 is connected to a first wire 70, to which the light-emitting lamp 60 is connected. The end of the first wire 70 away from the conductive post 20 is connected to a power source 90. The conductive film 50 is connected to a second wire 80, and the end of the second wire 80 away from the conductive film 50 is connected to the power source 90. Therefore, when the conductive post 20 is in electrical contact with the conductive film 50 at a corresponding position on the printing surface 31, the conductive post 20, the first wire 70, the light-emitting lamp 60, the power source 90, the second wire 80, and the conductive film 50 are sequentially connected to form a conductive loop. At this time, the current in the conductive loop can cause the light-emitting lamp 60 to emit light.

[0045] It can be understood that the conductive posts 20 and the conductive film 50 at corresponding positions on the printing surface 31 constitute a switch in a conductive circuit. Thus, when the conductive posts 20 and the conductive film 50 at corresponding positions on the printing surface 31 are in electrical contact, the conductive circuit is switched on, current flows through the conductive circuit, and the light-emitting lamp 60 illuminates. Therefore, when the light-emitting lamp 60 illuminates during adjustment of the relative position of the printhead base plate 10 relative to the printing surface 31, it indicates that the conductive posts 20 and the conductive film 50 in the conductive circuit are in electrical contact, indicating that the position of the printhead base plate 10 relative to the conductive posts 20 is properly adjusted.

[0046] The number of the light-emitting lamps 60 is set according to the number of the conductive pillars 20. Specifically, the number of the light-emitting lamps 60 is equal to the number of the conductive pillars 20. The current on the conductive loop is a microcurrent, and the light-emitting lamps 60 are microcurrent lamps. Optionally, the light-emitting lamps 60 are light-emitting diodes.

[0047] Furthermore, the power source 90 is a battery, the negative electrode of the battery is connected to the first wire 70, and the positive electrode of the battery is connected to the second wire 80. In addition, one end of the second wire 80 is taped to a position of the conductive film 50 that cannot be pressed by the conductive column 20.

[0048] Of course, in other embodiments, an ammeter, a voltmeter or a sound indicator may be connected to the conductive loop to indicate whether the conductive pillar 20 and the conductive film 50 on the conductive loop are in electrical contact.

[0049] It should be noted that when multiple conductive columns 20 need to be set in parallel on the same power supply 90, the conductive columns 20, the conductive films 50 corresponding to the conductive columns 20, and the light-emitting lamps 60 form branches. Since there are multiple conductive columns 20, the number of branches is also multiple. Multiple branches are set in parallel and share one power supply 90.

[0050] In some embodiments of this application, see Figure 1 The number of conductive pillars 20 is at least three, and the at least three conductive pillars 20 are not collinearly arranged. The number of conductive films 50 on the printing surface 31 is equal to the number of conductive pillars 20, that is, the number of conductive films 50 on the printing surface 31 is also at least three, and the at least three conductive films 50 are not collinearly arranged. The at least three conductive pillars 20 are respectively arranged corresponding to the at least three conductive films 50. When the printhead base plate 10 is parallel to the printing surface 31, the at least three conductive pillars 20 are respectively in electrical contact with the at least three conductive films 50 on the printing surface 31. By arranging at least three non-collinear conductive pillars 20 in electrical contact with the three non-collinear conductive films 50, the parallelism between the printhead base plate 10 and the printing surface 31 is effectively ensured.

[0051] Furthermore, there are four conductive pillars 20, each located at the four corners of the printhead base plate 10. There are also four conductive films 50 on the print surface 31, each located at the four corners of the print surface 31. During the process of moving the printhead base plate 10 toward the print surface 31, as long as any one of the conductive pillars 20 on the printhead base plate 10 makes electrical contact with the conductive film 50 at the corresponding position on the print surface 31, that is, as long as one of the light-emitting lamps 60 is illuminated, the movement of the printhead base plate 10 is stopped. The heights of the remaining corners of the printhead base plate 10, that is, the heights of the positions of the printhead base plate 10 corresponding to the unlit light-emitting lamps 60, are then adjusted until all four light-emitting lamps 60 are illuminated.

[0052] In this embodiment, the conductive pillars 20 may be but are not limited to copper pillars, the conductive film 50 may be but is not limited to double-sided conductive copper foil tape, and the conductive film 50 is adhered to the printing surface 31 of the printing material 30 .

[0053] In some embodiments of this application, please refer to Figure 1 and Figure 5 The nozzle base plate adjustment device further includes a plurality of insulating blocks 100 spaced apart on the nozzle base plate 10. A plurality of conductive pillars 20 are respectively disposed on the plurality of insulating blocks 100. Avoidance holes 11 for the conductive pillars 20 to pass through are provided at positions on the nozzle base plate 10 corresponding to the insulating blocks 100. Specifically, one side surface of the nozzle base plate 10 in the thickness direction faces the printing surface 31, while the other side surface of the nozzle base plate 10 in the thickness direction faces away from the printing surface 31. The insulating blocks 100 are disposed on the side surface of the nozzle base plate 10 facing away from the printing surface 31. The avoidance holes 11 extend through both side surfaces of the nozzle base plate 10 in the thickness direction. The cross-sectional area of ​​the avoidance holes 11 is greater than the cross-sectional area of ​​the conductive pillars 20. Therefore, when the conductive pillars 20 pass through the avoidance holes 11, they are prevented from contacting the nozzle base plate 10. Since the nozzle base plate 10 is generally a conductor, by setting the conductive column 20 on the insulating block 100 and opening an avoidance hole 11 on the nozzle base plate 10 to avoid the conductive column 20, it is effectively avoided that the conductive column 20 is electrically connected to the nozzle base plate 10 and affects the adjustment effect of the position of the nozzle base plate 10.

[0054] Further, see Figure 5The insulating block 100 is provided with a first threaded hole 101. The conductive post 20 includes a first threaded segment 21 and a contact segment 22. The first threaded segment 21 is inserted into the first threaded hole 101 and forms a threaded connection therewith. The contact segment 22 is connected to the first threaded segment 21. The contact segment 22 is movably inserted into the avoidance hole 11 and extends between the printhead base plate 10 and the printing surface 31. The first threaded segment 21 is inserted into the first threaded hole 101 and forms a threaded connection therewith, thereby threading the conductive post 20 to the insulating block 100. This allows for adjustment of the distance between the conductive post 20 and the printhead base plate 10 and the printing surface 31, specifically, the distance between the contact segment 22 and the printhead base plate 10 and the printing surface 31. It is understood that the distance between the conductive post 20 and the printhead base plate 10 and the printing surface 31 can be adjusted to define a desired distance between the printhead base plate 10 and the printing surface 31, based on printing requirements. This provides excellent flexibility and ease of adjustment.

[0055] Furthermore, a portion of the contact segment 22 is provided in the avoidance hole 11, and another portion of the contact segment 22 extends between the nozzle base plate 10 and the printing surface 31. Assuming that the length of the avoidance hole 11 is M, and the preset distance between the nozzle base plate 10 and the printing surface 31 of the printing material 30 is N, the length of the contact segment 22 is M+N. Figure 6 .

[0056] In some embodiments of this application, please refer to Figure 1 and Figure 5 The adjustment assembly 40 includes a fixed frame 41, two mounting blocks 42, and at least two adjustment pins 43. The printhead base plate 10 is mounted on the fixed frame 41. The two mounting blocks 42 are located at either end of the fixed frame 41 and are fixedly connected to the frame or lifting drive mechanism of the printing device. The at least two adjustment pins 43 are connected to the two fixed frames 41 and are threadedly connected to the fixed frames 41. It can be understood that the relative position between the fixed frame 41 and the mounting blocks 42 is adjusted by the adjustment pins 43, thereby adjusting the relative position between the printhead base plate 10 and the printing surface 31.

[0057] Specifically, a second threaded hole 411 is provided at each end of the fixed frame 41, and a mounting hole 421 is provided on the mounting block 42. The mounting holes 421 on the two mounting blocks 42 are respectively arranged to correspond to the second threaded holes 411 on the fixed frame 41. The adjusting pin 43 includes a second threaded segment 431. The adjusting pin 43 is inserted into the mounting hole 421. The second threaded segment 431 is inserted into the corresponding second threaded hole 411 and forms a threaded connection with the second threaded hole 411. The adjusting pin 43 can convert its own rotational motion into linear motion of the fixed frame 41. It can be understood that when the adjusting pin 43 is rotated, the adjusting pin 43 drives the fixed frame 41 to move away from or toward the mounting block 42, and the fixed frame 41 then drives the nozzle base plate 10 to move toward or away from the printing surface 31, thereby adjusting the distance between the nozzle base plate 10 and the printing surface 31.

[0058] Furthermore, two second threaded holes 411 are provided at both ends of the fixing frame 41, and two mounting holes 421 are provided on each mounting block 42. The two mounting holes 421 on one mounting block 42 are respectively provided to correspond to the two second threaded frames on one end of the fixing frame 41, and the two mounting holes 421 on the other mounting block 42 are respectively provided to correspond to the two second threaded frames on the other end of the fixing frame 41. There are four adjustment pins 43, each of which is inserted through the four mounting holes 421. The second threaded sections 431 of the four adjustment pins 43 are inserted into the corresponding second threaded holes 411 and form a threaded connection with the second threaded holes 411. It can be understood that the four adjustment pins 43 can be used to adjust the distance between the four corners of the nozzle base plate 10 and the printing surface 31.

[0059] In some embodiments of the present application, a guide hole 422 is provided on the mounting block 42, and the adjustment assembly 40 further includes at least two guide pins 44, which are respectively passed through the guide holes 422 on the two mounting blocks 42 and abut against the fixed frame 41.

[0060] See also Figures 1 to 7 The present application also provides a method for adjusting the nozzle base plate 10, comprising the following steps:

[0061] Step S10 : Press the printing material 30 onto the paper feed roller 110 , so that the printing material 30 forms a printing surface 31 facing the nozzle base plate 10 .

[0062] Specifically, the printing material 30 is pressed onto two adjacent paper feed rollers 110 of the printing platform 120 , and a printing surface 31 of the printing material 30 facing the nozzle base plate 10 is formed between the two adjacent paper feed rollers 110 .

[0063] In some embodiments of the present application, the printing platform 120 is arc-shaped. When the printing material 30 passes through the arc-shaped printing platform 120, multiple printing surfaces 31 with different orientations are formed on the printing material 30. The number of nozzle base plates 10 is multiple, and the multiple nozzle base plates 10 are respectively arranged corresponding to the multiple printing surfaces 31.

[0064] Step S20 : ​​attaching a plurality of conductive films 50 to the printing surface 31 .

[0065] Specifically, the conductive film 50 is attached to the printing surface 31. Optionally, the conductive film 50 may be, but is not limited to, a double-sided conductive copper foil tape.

[0066] In some embodiments of the present application, there are at least three conductive films 50 on the printing surface 31, and the at least three conductive films 50 are not arranged in a collinear manner. Optionally, there are four conductive films 50 on the printing surface 31, and the four conductive films 50 are respectively distributed at the four corners of the printing surface 31.

[0067] Step S30 : disposing a plurality of conductive pillars 20 on the nozzle base plate 10 and corresponding to the plurality of conductive films 50 ; one end of the conductive pillar 20 extends between the nozzle base plate 10 and the printing surface 31 .

[0068] It should be noted that, in step S30 , the distance between the nozzle base plate 10 and the printing surface 31 is greater than a preset distance that needs to be maintained between the nozzle base plate 10 and the printing surface 31 .

[0069] Specifically, an insulating block 100 is provided on the nozzle base plate 10. There are multiple insulating blocks 100, and the multiple insulating blocks 100 are respectively provided corresponding to the multiple conductive films 50 on the printing surface 31. A first threaded hole 101 is provided on the insulating block 100. A avoidance hole 11 for the conductive column 20 to pass through is provided at a position corresponding to the insulating block 100 on the nozzle base plate 10. The conductive column 20 includes a first threaded segment 21 and a contact segment 22 connected to each other, so that step 30 specifically includes the following steps:

[0070] Step 31: Insert the first threaded section 21 of the conductive post 20 into the first threaded hole 101 to form a threaded connection with the first threaded hole 101. A portion of the contact section 22 is inserted into the avoidance hole 11, and another portion of the contact section 22 extends between the nozzle base plate 10 and the printing surface 31.

[0071] Step 32: According to the preset distance that needs to be maintained between the nozzle base plate 10 and the printing surface 31, rotate the conductive pillar 20 so that the length of the contact section 22 extending between the nozzle base plate 10 and the printing surface 31 is the preset distance that needs to be maintained between the nozzle base plate 10 and the printing surface 31.

[0072] The number of conductive posts 20 on the printhead base plate 10 is equal to the number of conductive films 50 on the print surface 31. In some embodiments of the present application, the number of conductive posts 20 is at least three, and the at least three conductive posts 20 are not collinearly arranged. The at least three conductive posts 20 are respectively arranged corresponding to the at least three conductive films 50. Alternatively, the number of conductive posts 20 is four, and the four conductive posts 20 are respectively distributed at the four corners of the printhead base plate 10.

[0073] Step S40 : moving the nozzle base plate 10 toward the printing surface 31 until at least one conductive pillar 20 is in electrical contact with the corresponding conductive film 50 .

[0074] Specifically, the adjustment assembly 40 can be driven by the lifting drive mechanism of the printing device to move toward the printing surface 31, thereby driving the entire printhead base plate 10 to move toward the printing surface 31. Alternatively, the adjustment assembly 40 can be directly operated to move the entire printhead base plate 10 toward the printing surface 31. During the movement of the entire printhead base plate 10 toward the printing surface 31, as long as the conductive pillars 20 are in electrical contact with the conductive film 50 at corresponding positions on the printing surface 31, the entire printhead base plate 10 stops moving toward the printing surface 31.

[0075] In some embodiments of the present application, when the conductive pillar 20 is in electrical contact with the conductive film 50 at the corresponding position of the printing surface 31, a conductive loop is formed, and a light emitting lamp 60 is provided on the conductive loop, such as Figure 4 When the conductive pillars 20 are in electrical contact with the conductive film 50 at corresponding positions on the print surface 31, the conductive circuit is connected, and current flows through the conductive circuit, causing the light-emitting lamp 60 to illuminate. Therefore, when a light-emitting lamp 60 illuminates during the movement of the print head base plate 10 toward the print surface 31, it indicates that the conductive pillars 20 in the conductive circuit are in electrical contact with the conductive film 50, indicating that the position of the print head base plate 10 corresponding to the conductive pillars 20 has been adjusted to the correct position. In this case, the movement of the print head base plate 10 toward the print surface 31 needs to be stopped.

[0076] Step S50 : adjusting the position of the showerhead base plate 10 until all the conductive pillars 20 are in electrical contact with the corresponding conductive films 50 .

[0077] Specifically, the positions of the conductive pillars 20 that are not in electrical contact with the conductive film 50 are adjusted by the adjustment component 40 on the nozzle base plate 10 so that the remaining conductive pillars 20 are in electrical contact with the conductive film 50 at corresponding positions on the printing surface 31 .

[0078] In some embodiments of the present application, the number of the conductive posts 20 on the nozzle base plate 10 is four, the number of the conductive films 50 on the printing surface 31 is four, and thus the number of the light-emitting lamps 60 is also multiple. By rotating the adjusting pin 43, the position of the nozzle base plate 10 corresponding to the non-illuminated light-emitting lamp 60 is moved toward the printing surface 31, so that the conductive post 20 at this position of the nozzle base plate 10 is electrically contacted with the conductive film 50 at the corresponding position of the printing surface 31, that is, the light-emitting lamp 60 corresponding to this position of the nozzle base plate 10 is illuminated until all four light-emitting lamps are illuminated.

[0079] Compared with the prior art, the nozzle base plate 10 adjustment method provided in the present application electrically contacts the conductive film 50 at the corresponding position on the printing surface 31 through the conductive column 20 to determine whether the corresponding position of the nozzle base plate 10 is adjusted in place. As long as the conductive column 20 contacts the conductive film 50 at the corresponding position of the printing surface 31, the adjustment of the corresponding position of the nozzle base plate 10 can be completed, and the printing material 30 will not be deformed. The error is small and the adjustment accuracy is high. It can effectively ensure that the nozzle base plate 10 is parallel to the printing surface 31 and maintains a preset distance, which is beneficial to improving the color registration effect and printing quality.

[0080] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A nozzle base plate adjustment device, characterized in that: include: Print head base plate, used to install the printing head; A plurality of conductive pillars are arranged at intervals on the nozzle base plate; One end of the conductive post extends between the nozzle base plate and the printing surface, and is used to electrically contact the conductive film at a position corresponding to the printing surface; and An adjustment component, connected to the nozzle base plate, for adjusting the position of the nozzle base plate relative to the printing surface; The printing surface is formed by the printing material being pressed onto the paper feed roller, the printing material forming a printing surface facing the nozzle base plate, the conductive film is pasted on the printing surface, the conductive film is a double-sided conductive copper foil tape, when the conductive column is in electrical contact with the conductive film, the conductive circuit is turned on, and the light-emitting lamp arranged on the conductive circuit emits light.

2. The nozzle base plate adjustment device according to claim 1, characterized in that: The number of the conductive pillars is at least three, and at least three of the conductive pillars are not collinearly arranged.

3. The nozzle base plate adjustment device according to claim 2, characterized in that: The number of the conductive pillars is four, and the four conductive pillars are respectively distributed on the four corners of the showerhead base plate.

4. The nozzle base plate adjustment device according to any one of claims 1 to 3, characterized in that: It also includes a plurality of insulating blocks spaced apart on the nozzle base plate, a plurality of the conductive pillars are respectively arranged on the plurality of insulating blocks, and positions of the nozzle base plate corresponding to the insulating blocks are provided with avoidance holes for the conductive pillars to pass through.

5. The nozzle base plate adjustment device according to claim 4, characterized in that: The insulating block is provided with a first threaded hole, and the conductive column includes a first threaded section. The first threaded section is inserted into the first threaded hole and forms a threaded connection with the first threaded hole.

6. The nozzle base plate adjustment device according to any one of claims 1 to 3, characterized in that: The adjustment assembly includes a fixed frame, two mounting blocks located at both ends of the fixed frame, and at least two adjustment pins respectively connecting the two mounting blocks. The nozzle base plate is installed on the fixed frame, and the adjustment pins are threadedly connected to the fixed frame.

7. A method for adjusting a nozzle base plate, using the nozzle base plate adjusting device according to any one of claims 1 to 6, characterized in that: The following steps are involved: Pressing the printing material onto the paper feed roller, wherein the printing material forms a printing surface facing the nozzle bottom plate; attaching a plurality of conductive films to the printing surface; A plurality of conductive posts are arranged on the nozzle base plate and are respectively arranged corresponding to the plurality of conductive films; one end of the conductive post extends between the nozzle base plate and the printing surface; Moving the nozzle base plate toward the printing surface until at least one of the conductive pillars is in electrical contact with the corresponding conductive film; The position of the showerhead base plate is adjusted until all the conductive pillars are in electrical contact with the corresponding conductive films.

8. The method for adjusting the nozzle base plate according to claim 7, wherein: The number of the conductive films and the number of the conductive pillars are both at least three. The three conductive films are not collinearly arranged, the three conductive pillars are not collinearly arranged, and at least three conductive pillars are respectively arranged corresponding to at least three conductive films.

9. The method for adjusting the nozzle base plate according to claim 7, wherein: The conductive pillars are in electrical contact with the corresponding conductive films to form a conductive loop, and a light-emitting lamp is provided on the conductive loop.

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