Splicing printing head and ink-jet printer
By prioritizing the fixing of the first print head in the inkjet printer and adjusting the position of the second print head with the adjustment structure, non-displacement seamless splicing between the print heads is achieved, white space or overlap problems are solved, printing quality is improved, and production costs are reduced.
Patent Information
- Application Number
- CN202420284985.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-06
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-02-06
AI Technical Summary
When multiple printheads are used to form a spliced printhead, it is difficult to ensure that the relative position between the printheads is within a certain range, resulting in defects such as white space or overlap during the actual printing process.
By preferentially fixing the position of the first print head and adjusting the position of the second print head according to the position of the first print head using the adjustment structure, a non-displacement seamless splicing between the first print head and the second print head is achieved.
It effectively solves the problem of white space or overlap during printing, improves the accuracy of printing quality, and reduces the requirements for printhead processing accuracy, supports mass production of printheads, and reduces production costs.
Smart Images
Figure CN222645655U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of inkjet printing technology, and in particular to a spliced print head and an inkjet printer. Background Art
[0002] The print head of an inkjet printer is a highly precise component. Due to manufacturing accuracy and production costs, the size of a single print head is limited, and the number of nozzles is limited. In order to increase the printing width, multiple print heads are spliced together to form a spliced print head. However, due to processing accuracy and cumulative errors, when multiple print heads are used to form a spliced print head, the relative positions of the multiple print heads are difficult to ensure within a certain range. In the actual printing process, there will be defects such as blank space or overlap between the print heads. Utility Model Content
[0003] In view of this, the present application provides a splicing print head and an inkjet printer, which can achieve non-misaligned seamless splicing to obtain higher precision printing quality.
[0004] Specifically, the present application is implemented through the following technical solutions:
[0005] In a first aspect, the present application provides a spliced print head, the spliced print head comprising a mounting seat, a first print head, N second print heads and N adjustment structures; N is a positive integer greater than or equal to 2; wherein,
[0006] The first print head is fixedly mounted on the mounting seat;
[0007] The first side surface of the second print head is fixedly connected to the first adjustment seat, and the second side surface of the second print head is fixedly connected to the second adjustment seat; wherein the first side surface and the second side surface are two side surfaces of the second print head along the splicing direction;
[0008] The first adjustment seat and the second adjustment seat have limiting holes; the first adjustment seat and the second adjustment seat are both fixed to the mounting seat through the limiting holes, so that the first print head and the N second print heads are spliced end to end; wherein the length direction of the limiting holes is along the splicing direction;
[0009] The adjustment structure comprises a connecting block, an adjusting screw and a fixing block having a threaded hole; wherein the threaded portion of the adjusting screw is screwed into the threaded hole, and the tail of the threaded portion is connected to the connecting block;
[0010] Each of the adjustment structures is connected to one of the second print heads via the connection block;
[0011] The fixed block of each adjustment structure is fixed on the mounting seat, so that when the adjustment screw is rotated, the connecting block is driven to move along the splicing direction through the adjustment screw, and then the connecting block drives the adjustment seat to move in the limiting hole through the second print head to adjust the position of the second print head and realize non-misaligned seamless splicing.
[0012] Optionally, the N second print heads include three print heads; viewed from a direction perpendicular to the splicing direction; one of the three print heads and the first print head are installed on a first axis; the other two of the three print heads are installed on a second axis; viewed from the splicing direction, the two print heads installed on the first axis and the two print heads installed on the second axis are arranged alternately.
[0013] Optionally, the length of the limiting hole is equal to 6 mm to 10 mm.
[0014] Optionally, the adjustment structure further includes a spring; wherein the spring is sleeved on a threaded section of the threaded portion between the connecting block and the fixing block.
[0015] Optionally, the pitch of the adjusting screw is equal to a specified value, the head of the adjusting screw has a scale corresponding to the pitch, and the fixing block has a pointer mark corresponding to the scale.
[0016] Optionally, the unit of the scale is 5 microns.
[0017] Optionally, the mounting seat includes a mounting plate, a first baffle and a second baffle; wherein,
[0018] The first baffle is fixed to the mounting plate in a vertical installation manner; the second baffle is fixed to the mounting plate in a vertical installation manner;
[0019] The first print head and the second print head are mounted on the mounting plate.
[0020] A second aspect of the present application provides an inkjet printer, the inkjet printer comprising any one of the spliced print heads provided in the first aspect of the present application.
[0021] The spliced print head and inkjet printer provided by the present application can achieve non-misaligned seamless splicing of the first print head and the second print head by using an adjustment structure to adjust the position of the first print head according to the position of the first print head, which can well solve the problem of blank space or overlap during printing. In addition, the spliced print head can adjust the position of the second print head within a large range through the adjustment structure, which can reduce the requirements for the processing accuracy of the print head, and has low requirements for the size error of the print head, so as to achieve the purpose of mass production of print heads, reduce production costs, and have high adjustment accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A schematic diagram of the structure of the spliced print head provided for this application;
[0023] Figure 2 This is a schematic diagram of the distribution of each print head in a spliced print head according to an exemplary embodiment of the present application.
[0024] Description of reference numerals:
[0025] 1: Mounting seat;
[0026] 11: Mounting plate
[0027] 12: first baffle;
[0028] 13: second baffle;
[0029] 2: First print head;
[0030] 3: Second print head;
[0031] 31: first adjustment seat;
[0032] 311: limiting hole;
[0033] 4: Adjust the structure;
[0034] 41: connection block;
[0035] 42: Adjusting screw;
[0036] 43: fixed block;
[0037] 44: Spring. DETAILED DESCRIPTION
[0038] Here, exemplary embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application.
[0039] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items.
[0040] It should be understood that although the terms first, second, third, etc. may be used in the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".
[0041] The present application provides a splicing print head and an inkjet printer, which can achieve non-misaligned seamless splicing to obtain higher precision printing quality.
[0042] The spliced print head and inkjet printer provided by the present application can achieve non-misaligned seamless splicing of the first print head and the second print head by using an adjustment structure to adjust the position of the first print head according to the position of the first print head, which can well solve the problem of blank space or overlap during printing. In addition, the spliced print head can adjust the position of the second print head within a large range through the adjustment structure, which can reduce the requirements for the processing accuracy of the print head, and has low requirements for the size error of the print head, so as to achieve the purpose of mass production of print heads, reduce production costs, and have high adjustment accuracy.
[0043] Specific embodiments are given below to introduce the technical solution of the present application in detail.
[0044] Figure 1 This is a schematic diagram of the structure of the spliced print head provided for this application. Please refer to Figure 1 The spliced print head provided in this embodiment includes a mounting seat 1, a first print head 2, N second print heads 3 and N adjustment structures 4; N is a positive integer greater than or equal to 2; wherein,
[0045] The first print head 2 is fixedly mounted on the mounting base 1;
[0046] The first side surface of the second print head 3 is fixedly connected to the first adjustment seat 31, and the second side surface of the second print head is fixedly connected to the second adjustment seat (not shown in the figure); wherein the first side surface and the second side surface are two side surfaces of the second print head along the splicing direction;
[0047] The first adjustment seat 31 and the second adjustment seat have a limiting hole 311; the first adjustment seat 31 and the second adjustment seat are both fixed to the mounting seat 1 through the limiting hole 311, so that the first print head 2 and the N second print heads 3 are spliced end to end; wherein the length direction of the limiting hole 311 is along the splicing direction;
[0048] The adjustment structure 4 includes a connection block 41, an adjustment screw 42 and a fixing block 43 having a threaded hole; wherein the threaded portion of the adjustment screw 42 is screwed into the threaded hole, and the tail of the threaded portion is connected to the connection block 41;
[0049] Each of the adjustment structures 4 is connected to one of the second print heads 3 via the connection block 41;
[0050] The fixed block 43 of each adjustment structure 4 is fixed on the mounting seat 1, so that when the adjusting screw 42 is rotated, the connecting block 41 is driven to move along the splicing direction through the adjusting screw 42, and then the connecting block 41 drives the adjusting seat 31 to move in the limiting hole 311 through the second print head 3, so as to adjust the position of the second print head 3 and realize non-misaligned seamless splicing.
[0051] For details, please refer to Figure 1 In a possible implementation, the mounting base 1 includes a mounting plate 11, a first baffle 12 and a second baffle 13; wherein the first baffle 12 is fixed to the mounting plate 11 in a vertical mounting manner; the second baffle 13 is fixed to the mounting plate 11 in a vertical mounting manner; the first print head 2 and the second print head 3 are mounted on the mounting plate 11.
[0052] It should be noted that the mounting seat 1 may be an integrally formed mounting seat, or a mounting seat assembled using an independent mounting plate 11 , a first baffle plate 12 , and a second baffle plate 13 , which is not limited in this embodiment.
[0053] Specifically, the first print head 2 is fixed on the mounting plate 11, for example, Figure 1 In the example shown, the first print head 2 is fixed on a side of the mounting base 1 close to the first baffle 12. The first print head 2 refers to a print head whose position is fixed and cannot be adjusted.
[0054] Furthermore, the spliced print head includes N second print heads 3, wherein the second print head 3 refers to a position-adjustable print head. One second print head 3 corresponds to one adjustment structure 4, and the adjustment structure 4 can be used to adjust the position of the second print head 3 to achieve non-misaligned seamless splicing. It should be noted that N is a positive integer greater than or equal to 2. Specifically, the specific value of N is set according to actual needs, and this is not limited in the present embodiment. For example, in one possible implementation, N is 2, that is, the spliced print head includes 3 print heads, of which the position of 1 print head is fixed and cannot be adjusted, and the positions of the other two print heads can be adjusted based on the adjustment structure 4, so that the 3 print heads are non-misaligned and seamlessly spliced. For another example, N can also be 4, 5 or 6, etc., which will not be repeated here.
[0055] Please refer to Figure 1 The second print head 3 is connected to an adjustment seat on both the first side and the second side along the splicing direction (for the convenience of explanation, the adjustment seat connected to the first side is recorded as the first adjustment seat 31, and the adjustment seat connected to the second side is recorded as the second adjustment seat (not shown in the figure)). The first adjustment seat and the second adjustment seat have the same structure.
[0056] Please continue to refer to Figure 1 The first adjustment seat 31 and the second adjustment seat both have a limiting hole 311, and the first adjustment seat 31 and the second adjustment seat are both fixed to the mounting seat 1 through the limiting hole 311. In specific implementation, the bolts are passed through the limiting hole 311, and the first adjustment seat 31 and the second adjustment seat are fixed to the mounting seat 1 by the bolts, so that the first print head 2 and the N second print heads 3 are spliced end to end.
[0057] Specifically, the length direction of the limiting hole 311 is along the splicing direction, and the length of the limiting hole is equal to 6 mm to 10 mm. In this way, the position of the second print head 3 can be adjusted within this range along the splicing direction to achieve non-misaligned seamless splicing.
[0058] Please continue to refer to Figure 1 The adjustment structure 4 includes a connection block 41, an adjustment screw 42, and a fixed block 43 having a threaded hole. The threaded portion of the adjustment screw 42 is screwed into the threaded hole, and the tail of the threaded portion is connected to the connection block 41; the fixed block 43 is fixed to the mounting seat. In this way, when the adjustment screw 42 is rotated, the adjustment screw 42 drives the connection block 41 to move along the splicing direction. For example, when screwing in, the adjustment screw 42 drives the connection block to move in a direction away from the fixed block 43. For another example, when screwing out, the adjustment screw 42 drives the connection block to move in a direction close to the fixed block 43.
[0059] For further information, please refer to Figure 1Each of the adjustment structures 4 is connected to one of the second print heads 3 via the connecting block 41 .
[0060] Referring to the above description, when the adjusting screw 42 is rotated, the adjusting screw 42 drives the connecting block 41 to move along the splicing direction. Accordingly, when the connecting block 41 moves along the splicing direction, the second print head 3 connected thereto will be driven to move along the splicing direction. In addition, due to the existence of the limiting hole 311, the second print head 3 will move along the splicing direction within the length range limited by the limiting hole 311.
[0061] Refer to the previous introduction, combined with Figure 1 ,exist Figure 1 In the example shown, the N second print heads include three print heads; viewed from a direction perpendicular to the splicing direction; one of the three print heads and the first print head 2 are installed on a first axis; the other two of the three print heads are installed on a second axis; viewed from the splicing direction, the two print heads installed on the first axis and the two print heads installed on the second axis are arranged alternately.
[0062] Specifically, refer to Figure 1 The spliced print head includes 4 print heads. For convenience, the first print head is recorded as print head A, and the other print head on the same axis as print head A is recorded as print head B. Furthermore, in order from left to right, the other print heads on the other axis are recorded as print head C and print head D, among which print head B, print head C and print head D are position-adjustable print heads (i.e., the second print head).
[0063] Specifically, after the print head A is fixed, the positions of the print heads B, C and D can be adjusted in sequence through the adjustment structure, so that the four print heads can be seamlessly spliced in the splicing direction without misalignment. For example, based on the adjustment structure, the position of the print head B is adjusted, and after the adjustment, the position of the print head B is fixed with a screw. Further, the position of the print head C is adjusted, and after the adjustment, the position of the print head C is fixed with a screw; similarly, the position of the print head D is adjusted, and after the adjustment, the position of the print head D is fixed with a screw.
[0064] Figure 2 This is a schematic diagram of the distribution of each print head in a spliced print head according to an exemplary embodiment of the present application. Figure 2 Through this splicing method, the print heads are arranged in an alternating manner, and the printing spacing between each print head can be exactly connected, which can achieve non-misaligned seamless splicing, so that the printed results will not have defects such as blank space or overlap.
[0065] In this embodiment, each second print head can be adjusted in sequence to eliminate cumulative installation errors.
[0066] The spliced print head and inkjet printer provided by the present application can achieve non-misaligned seamless splicing of the first print head and the second print head by using an adjustment structure to adjust the position of the first print head according to the position of the first print head, which can well solve the problem of blank space or overlap during printing. In addition, the spliced print head can adjust the position of the second print head within a large range through the adjustment structure, which can reduce the requirements for the processing accuracy of the print head, and has low requirements for the size error of the print head, so as to achieve the purpose of mass production of print heads, reduce production costs, and have high adjustment accuracy.
[0067] Optionally, in a possible implementation of the present application, the pitch of the adjusting screw 42 is equal to a specified value, and the head of the adjusting screw 42 has a scale corresponding to the pitch, and the fixing block 43 has a pointer mark corresponding to the scale.
[0068] The specific value of the specified value is set according to actual needs and is not limited in this embodiment. In addition, the head of the adjustment screw 42 has a scale corresponding to the pitch, and the unit of the scale is also set according to actual needs and is not limited in this embodiment. In addition, the fixed block 43 has a pointer mark corresponding to the scale.
[0069] In this embodiment, by setting the pitch of the adjusting screw to a specified value, and then setting a corresponding scale on the head of the adjusting screw, and setting a pointer mark on the fixed block, when adjusting the position of the print head, the required adjustment distance can be adjusted according to the pointer mark, which can make the adjustment more precise.
[0070] For example, in a possible implementation, the specified value is equal to 0.5 mm, and the unit of the scale is 5 microns, so that the maximum adjustment accuracy reaches 5 microns, making the adjustment more precise.
[0071] Optionally, in a possible implementation, the adjustment structure 4 further includes a spring 44. The spring 44 is sleeved on the threaded section of the threaded portion between the connecting block 41 and the fixing block 43.
[0072] Referring to the previous description, when the adjustment screw 42 is rotated, the connecting block 41 will be driven to move, and then when the connecting block 41 moves, the second print head 3 connected thereto will be driven to move. Since there are scales and pointer marks corresponding to the scales on the adjustment screw 42, the distance of screwing in or out can be accurately adjusted according to the pointer mark. However, in this process, it may be affected by external forces, resulting in errors in the adjustment results. At this time, by setting a spring 44, the compression or extension of the spring 44 can adjust the stiffness of the structure, thereby achieving stability in the adjustment process. The spring is elastic, and when external forces act, it can better adapt to slight changes and maintain the tightness of the connection. In this way, by setting a spring 44, the thread gap can be effectively eliminated and the adjustment error can be reduced.
[0073] It should also be noted that, in combination with the above description, by setting limit holes and adjustment structures, the print head can be adaptively adjusted within a larger range to achieve the purpose of improving printing accuracy. Therefore, on the one hand, the processing accuracy of the print head and the nozzle can be reduced, the processing cost can be reduced, and the requirements for nozzle size error are reduced, so that mass production can be achieved and production costs can be reduced.
[0074] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. 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 spliced print head, characterized in that: The spliced print head includes a mounting seat, a first print head, N second print heads and N adjustment structures; N is a positive integer greater than or equal to 2; wherein, The first print head is fixedly mounted on the mounting seat; The first side surface of the second print head is fixedly connected to the first adjustment seat, and the second side surface of the second print head is fixedly connected to the second adjustment seat; wherein the first side surface and the second side surface are two side surfaces of the second print head along the splicing direction; The first adjustment seat and the second adjustment seat have limiting holes; the first adjustment seat and the second adjustment seat are both fixed to the mounting seat through the limiting holes, so that the first print head and the N second print heads are spliced end to end; wherein the length direction of the limiting holes is along the splicing direction; The adjustment structure comprises a connecting block, an adjusting screw and a fixing block having a threaded hole; wherein the threaded portion of the adjusting screw is screwed into the threaded hole, and the tail of the threaded portion is connected to the connecting block; Each of the adjustment structures is connected to one of the second print heads via the connection block; The fixed block of each adjustment structure is fixed on the mounting seat, so that when the adjustment screw is rotated, the connecting block is driven to move along the splicing direction through the adjustment screw, and then the connecting block drives the adjustment seat to move in the limiting hole through the second print head to adjust the position of the second print head and realize non-misaligned seamless splicing.
2. The splicing print head according to claim 1, characterized in that: The N second print heads include three print heads; viewed from a direction perpendicular to the splicing direction; one of the three print heads is installed on a first axis with the first print head; the other two of the three print heads are installed on a second axis; viewed from the splicing direction, the two print heads installed on the first axis and the two print heads installed on the second axis are arranged alternately.
3. The spliced print head according to claim 1, characterized in that: The length of the limiting hole is equal to 6 mm to 10 mm.
4. The splicing print head according to claim 1, characterized in that: The adjustment structure further comprises a spring; wherein the spring is sleeved on a threaded section of the threaded portion between the connecting block and the fixing block.
5. The splicing print head according to claim 1 or 2, characterized in that: The pitch of the adjusting screw is equal to a specified value, the head of the adjusting screw has a scale corresponding to the pitch, and the fixing block has a pointer mark corresponding to the scale.
6. The splicing print head according to claim 5, characterized in that: The specified value is equal to 0.5 mm, and the unit of the scale is 5 microns.
7. The splicing print head according to claim 1, characterized in that: The mounting seat includes a mounting plate, a first baffle and a second baffle; wherein, The first baffle is fixed to the mounting plate in a vertical installation manner; the second baffle is fixed to the mounting plate in a vertical installation manner; The first print head and the second print head are mounted on the mounting plate.
8. An inkjet printer, characterized in that: Comprising the spliced print head according to any one of claims 1 to 7.