A print head position adjusting mechanism of a UV printer
Patent Information
- Application Number
- CN202521895513.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-03
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-09-03
AI Technical Summary
[0004]然而，打印头在车头板上的水平安装位置调节通常属于微调范畴，实际安装位置与设计位置之间的误差往往微小到毫米甚至微米级别，这对调节的精度提出了极高的要求
[0020]与现有技术相比，本实用新型提供的一种UV打印机的打印头位置调节机构，具备以下有益效果：
Smart Images
Figure CN224689837U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of UV printer technology, specifically to a printhead position adjustment mechanism for a UV printer. Background Technology
[0002] UV printers, as highly innovative plate-free full-color digital printing devices in the modern high-tech field, occupy an important position in the printing industry. Within the internal structure of a UV printer, the printhead is a core component, typically equipped with multiple printheads. These printheads are responsible for precisely spraying ink onto the substrate surface to form the desired patterns and text. The accuracy of the printhead's installation position directly affects print quality. Any deviation in installation position may lead to problems such as ghosting, color cast, and blurring, severely impacting the product's yield and aesthetics. Therefore, ensuring the precise installation and position adjustment of the printheads on the printhead is a crucial aspect of the UV printer design and manufacturing process.
[0003] Currently, existing UV printers primarily rely on elongated connecting holes for printhead position adjustment. Specifically, the printhead plate is designed and machined with multiple threaded holes, the positions of which are precisely calculated and measured to ensure they match the printhead's installation requirements. The printhead itself has a corresponding connecting hole extending horizontally. During printhead installation, the installer passes a screw through the connecting hole and screws it into the corresponding threaded hole, initially connecting the printhead to the printhead plate. The installer then manually slides the printhead slowly along the extension of the connecting hole to adjust its horizontal position on the printhead plate. Once adjusted, the screw is further rotated until its head tightly engages with the end face of the connecting hole, fixing the relative position of the printhead to the printhead plate and locking it in place.
[0004] However, adjusting the horizontal mounting position of the printhead on the headplate is usually a fine-tuning process. The error between the actual mounting position and the designed position is often as small as millimeters or even micrometers, which places extremely high demands on the precision of the adjustment. In this situation, when manually pushing the printhead, it is difficult for the installer to precisely control the tiny movements of the printhead. Even slight hand tremors or uneven force can cause significant deviations in the printhead's position, preventing it from quickly and accurately reaching the designed position and thus affecting print quality.
[0005] In view of the above-mentioned drawbacks of the existing UV printer printhead position adjustment methods, in order to improve the installation efficiency and adjustment accuracy of the printhead, it is necessary to develop a UV printer printhead position adjustment mechanism to quickly and accurately adjust the horizontal installation position of the printhead on the head plate. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] This invention provides a printhead position adjustment mechanism for a UV printer, which can at least solve the following technical problems: how to improve the installation efficiency of the printhead and how to improve the installation position accuracy of the printhead on the head plate.
[0008] (II) Technical Solution
[0009] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a printhead position adjustment mechanism for a UV printer, comprising:
[0010] The front panel has mounting slots.
[0011] A limiting plate is movably mounted in the mounting slot of the front plate and is used to load a single printhead;
[0012] The elastic element and the inclined screw are used to drive the limiting plate to move along a first direction, which is a direction on the horizontal plane. The inclined screw is screwed onto the front plate and includes a frustum-shaped guide portion. The diameter of the guide portion gradually increases from bottom to top. The guide portion is used to abut against the side of the limiting plate opposite to the elastic element to drive the limiting plate to move in the direction of compressing the elastic element, thereby limiting the position of the limiting plate and the print head on it in the first direction and vertical direction.
[0013] Furthermore, the printhead position adjustment mechanism of the aforementioned UV printer also includes at least one limiting screw. The head plate is provided with a first threaded hole. The number of first threaded holes and limiting screws are the same and correspond one-to-one. The limiting screw passes through the limiting plate and is screwed into the corresponding first threaded hole, and the head of the limiting screw is tightly abutted against the limiting plate.
[0014] Further, the aforementioned limiting screws are provided in two, with each limiting screw arranged at intervals along the second direction. The second direction and the first direction are two mutually perpendicular directions on a horizontal plane. The limiting plate is provided with a first through hole and a second through hole for the two limiting screws to pass through. The size of the first through hole in the second direction is equal to the diameter of the limiting screw, and the size of the second through hole in the second direction is larger than the diameter of the limiting screw.
[0015] Furthermore, both the aforementioned first and second perforations are elongated strips and extend along the first direction.
[0016] In a further configuration, the bottom of the aforementioned limiting plate is provided with a first recess, and the groove wall of the mounting groove is provided with a second recess corresponding to the position of the first recess. The first recess, the second recess, and the bottom surface of the mounting groove enclose an elastic space, which is used to accommodate and limit the elastic element.
[0017] As a further provision, the aforementioned first or second recess is provided with a connecting post for the elastic element to be fitted.
[0018] Further, the aforementioned head plate is provided with a second threaded hole for threaded connection with the inclined screw, and the side of the limiting plate facing away from the elastic element is provided with a clearance recess for the inclined screw to pass through, the size of the clearance recess being no less than the maximum diameter of the guide portion.
[0019] (III) Beneficial Effects
[0020] Compared with the prior art, the printhead position adjustment mechanism for a UV printer provided by this utility model has the following advantages:
[0021] The printhead position adjustment mechanism for a UV printer provided by this utility model involves first installing the printhead onto a limiting plate, then inserting the limiting plate and the elastic element together into the mounting groove of the headstock; finally, screwing the angled screw onto the headstock, so that the guide portion of the angled screw abuts against the side of the limiting plate opposite to the elastic element. This abutting action restricts the vertical position of the limiting plate and the printhead on it, and also restricts the position of the limiting plate and the printhead on it in the first direction. Continuing to rotate the angled screw causes it to move the limiting plate along the first direction towards the direction of compressing the elastic element, thereby achieving stepless adjustment of the limiting plate's position in the first direction. It can be seen that this UV printer's printhead position adjustment mechanism, through the combination of the angled screw and the elastic element, can fine-tune the horizontal mounting position of the limiting plate and the printhead on the headstock on the headstock, effectively improving the installation efficiency of the printhead and the accuracy of the printhead's mounting position on the headstock, providing a strong guarantee for high-quality print output. Attached Figure Description
[0022] Figure 1 This is a perspective view of the printhead position adjustment mechanism of the UV printer in the embodiment;
[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0024] Figure 3 This is a partial cross-sectional view of the printhead position adjustment mechanism of the UV printer in the embodiment, cut along the first direction.
[0025] Figure 4 This is a partial cross-sectional view of the printhead position adjustment mechanism of the UV printer in the embodiment, cut along the second direction.
[0026] Icon labels:
[0027] 1. Front panel; 11. Mounting groove; 12. First threaded hole; 13. Second recess; 14. Second threaded hole;
[0028] 2. Limiting plate; 21. First through hole; 22. Second through hole; 23. First recess; 24. Clearance recess;
[0029] 3. Elastic components;
[0030] 4. Angled screw; 41. Guide part;
[0031] 5. Print head; 6. Limit screw; 7. Flexible space; 8. Socket post. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] This utility model provides a printhead position adjustment mechanism for a UV printer, which solves the problems of how to improve the installation efficiency of the printhead 5 and how to improve the installation position accuracy of the printhead 5 on the headplate 1.
[0034] See Figure 1 and Figure 2 As shown, Figure 1 This is a perspective view of the printhead position adjustment mechanism of the UV printer in the embodiment. Figure 2 for Figure 1 The enlarged schematic diagram at point A shows that the printhead position adjustment mechanism of the UV printer includes a head plate 1, a limiting plate 2, an elastic element 3, and a beveled screw 4.
[0035] The front plate 1 has a mounting groove 11.
[0036] The limiting plate 2 is movably connected to the mounting slot 11 of the front plate 1 and is used to load a single print head 5.
[0037] One end of the elastic element 3 is connected to one side of the limiting plate 2, and the other end is connected to the groove wall of the mounting groove 11. The elastic element 3 is used to drive the limiting plate 2 to move along a first direction. The first direction is a direction on the horizontal plane.
[0038] The angled screw 4 is screwed onto the headplate 1 and includes a frustum-shaped guide portion 41. The diameter of the guide portion 41 gradually increases from bottom to top. The guide portion 41 is used to abut against the side of the limiting plate 2 facing away from the elastic member 3, so as to drive the limiting plate 2 to move in the direction of compressing the elastic member 3, thereby limiting the position of the limiting plate 2 and the print head 5 on it in the first direction and vertical direction.
[0039] When using the printhead position adjustment mechanism of the UV printer described above, firstly, the printhead 5 is installed on the limiting plate 2. Then, the limiting plate 2 and the elastic element 3 are inserted together into the mounting groove 11 of the headstock 1. Finally, the angled screw 4 is screwed onto the headstock 1, so that the guide portion 41 of the angled screw 4 abuts against the side of the limiting plate 2 facing away from the elastic element 3. This abutment action restricts the vertical position of the limiting plate 2 and the printhead 5 on it. Furthermore, it restricts the position of the limiting plate 2 and the printhead 5 in the first direction. At this point, continuing to rotate the angled screw 4 causes it to move the limiting plate 2 along the first direction towards the direction of compressing the elastic element 3 via the guide portion 41, thereby achieving stepless adjustment of the position of the limiting plate 2 in the first direction. It can be seen that the printhead position adjustment mechanism of the UV printer can finely adjust the horizontal installation position of the limiting plate 2 and the printhead 5 on the head plate 1 through the combination of the inclined screw 4 and the elastic element 3, which effectively improves the installation efficiency of the printhead 5 and the installation position accuracy of the printhead 5 on the head plate 1, providing a strong guarantee for high-quality printing output.
[0040] The number of the aforementioned limiting plates 2 is the same as the number of printheads 5 of the UV printer, and they correspond one-to-one. The printheads 5 can be mounted on the corresponding limiting plates 2 by screwing.
[0041] See Figure 2 and Figure 3 As shown, Figure 3 This is a partial cross-sectional view of the printhead position adjustment mechanism of the UV printer in the embodiment, cut along a first direction. Based on the above embodiment, the printhead position adjustment mechanism of the UV printer further includes at least one limiting screw 6. The head plate 1 has first threaded holes 12, and the number of first threaded holes 12 and limiting screws 6 are the same and correspond one-to-one. The limiting screw 6 passes through the limiting plate 2 and is screwed into the corresponding first threaded hole 12, with the head of the limiting screw 6 tightly abutting against the limiting plate 2. Thus, after the printhead 5 is adjusted to the correct position, the limiting screw 6 can screw and fix the relative position of the limiting plate 2 and the head plate 1, further enhancing the fixing effect of the limiting plate 2 on the head plate 1, preventing displacement of the limiting plate 2 due to vibration or other reasons during printing, ensuring the stability of the printhead 5 position, and thereby improving the reliability and consistency of printing.
[0042] See Figure 4 As shown, Figure 4This is a partial cross-sectional view of the printhead position adjustment mechanism of the UV printer in the embodiment, cut along the second direction. In one embodiment of the limiting screw 6, there are two limiting screws 6, which are spaced apart along the second direction. The second direction and the first direction are two mutually perpendicular directions on a horizontal plane. The limiting plate 2 has a first through hole 21 and a second through hole 22, which are respectively used for the two limiting screws 6 to pass through. The size of the first through hole 21 in the second direction is equal to the diameter of the limiting screw 6, and the size of the second through hole 22 in the second direction is larger than the diameter of the limiting screw 6. In this way, the position of the limiting plate 2 in the second direction can be easily fine-tuned through the second through hole 22, ensuring that the first through hole 21 can be completely aligned with the corresponding first threaded hole 12, thereby accurately limiting the position of the limiting plate 2 in the second direction and avoiding the possibility that the first through hole 21 and the second through hole 22 cannot be completely aligned with the corresponding first threaded hole 12 due to processing errors.
[0043] See Figure 3 As shown, based on the above embodiment, both the first through hole 21 and the second through hole 22 are elongated and extend along the first direction. Thus, the first through hole 21 and the second through hole 22 provide sufficient space for the movement of the limiting plate 2 in the first direction, and also guide the movement of the limiting plate 2 in the first direction, making it smoother to adjust the position of the limiting plate 2 using the elastic element 3 and the inclined screw 4.
[0044] See Figure 3 As shown, based on any of the above embodiments, the bottom of the limiting plate 2 has a first recess 23. The groove wall of the mounting groove 11 has a second recess 13 corresponding to the position of the first recess 23. The first recess 23, the second recess 13, and the bottom surface of the mounting groove 11 enclose an elastic space 7, which is used to accommodate and limit the elastic member 3. In this way, the elastic space 7 formed not only facilitates the installation of the elastic member 3, but also effectively prevents the elastic member 3 from shifting or shaking during compression and extension, ensuring that the elastic member 3 always functions in the correct direction, thereby ensuring the stability and accuracy of the driving force on the limiting plate 2, which is beneficial for precise adjustment of the print head 5 position, and also prevents the elastic member 3 from falling out of the elastic space 7 during adjustment, affecting the normal operation of the adjustment.
[0045] See Figure 2 and Figure 3As shown, based on the above embodiment, the first recess 23 or the second recess 13 is provided with a sleeve post 8 for the elastic member 3 to be fitted on by means of integral connection or bonding. In this way, the elastic member 3 can be fitted on the sleeve post 8, which can further enhance the installation stability of the elastic member 3, effectively prevent the elastic member 3 from detaching or shifting from the elastic space 7 during the adjustment process, ensure the reliable connection between the elastic member 3 and the limiting plate 2 and the groove wall of the mounting groove 11, and thus ensure the stability and reliability of the entire adjustment mechanism.
[0046] See Figure 2 and Figure 3 As shown, based on any of the above embodiments, the front plate 1 has a second threaded hole 14 for threaded connection with the angled screw 4, and the limiting plate 2 has a clearance recess 24 on the side facing away from the elastic member 3 for the angled screw 4 to pass through. The size of the clearance recess 24 is not less than the maximum diameter of the guide portion 41. Thus, the size design of the clearance recess 24 provides sufficient space for the installation and adjustment of the angled screw 4.
[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A printhead position adjustment mechanism for a UV printer, characterized in that, include: A front panel, wherein the front panel is provided with a mounting groove; A limiting plate is movably disposed within the mounting slot of the front plate and is used to load a single printhead; The device includes an elastic element and a beveled screw. One end of the elastic element is connected to one side of the limiting plate, and the other end is connected to the wall of the mounting groove. The elastic element is used to drive the limiting plate to move along a first direction, which is a direction on a horizontal plane. The beveled screw is screwed onto the front plate and includes a frustum-shaped guide portion. The diameter of the guide portion gradually increases from bottom to top. The guide portion is used to abut against the side of the limiting plate opposite to the elastic element, so as to drive the limiting plate to move in the direction of compressing the elastic element, thereby limiting the position of the limiting plate and the print head on it in the first direction and vertically.
2. The printhead position adjustment mechanism of the UV printer according to claim 1, characterized in that, The printhead position adjustment mechanism of the UV printer also includes at least one limiting screw. The head plate is provided with a first threaded hole. The number of the first threaded holes and the limiting screws are the same and correspond one-to-one. The limiting screw passes through the limiting plate and is screwed into the corresponding first threaded hole, and the head of the limiting screw is tightly abutted against the limiting plate.
3. The printhead position adjustment mechanism of the UV printer according to claim 2, characterized in that, The limiting screw is provided in two parts, and each limiting screw is arranged at intervals along the second direction. The second direction and the first direction are two mutually perpendicular directions on the horizontal plane. The limiting plate is provided with a first through hole and a second through hole for the two limiting screws to pass through. The size of the first through hole in the second direction is equal to the diameter of the limiting screw, and the size of the second through hole in the second direction is larger than the diameter of the limiting screw.
4. The printhead position adjustment mechanism of the UV printer according to claim 3, characterized in that, Both the first perforation and the second perforation are elongated and extend along the first direction.
5. The printhead position adjustment mechanism of the UV printer according to any one of claims 1-4, characterized in that, The bottom of the limiting plate is provided with a first recess, and the groove wall of the mounting groove is provided with a second recess corresponding to the position of the first recess. The first recess, the second recess and the bottom surface of the mounting groove enclose an elastic space, which is used to accommodate and limit the elastic element.
6. The printhead position adjustment mechanism of the UV printer according to claim 5, characterized in that, The first recess or the second recess is provided with a sleeve post for the elastic element to be fitted.
7. The printhead position adjustment mechanism of the UV printer according to any one of claims 1, 2, 3, 4 and 6, characterized in that, The front plate is provided with a second threaded hole for threaded connection with the inclined screw, and the side of the limiting plate facing away from the elastic member is provided with a clearance recess for the inclined screw to pass through, the size of the clearance recess is not less than the maximum diameter of the guide portion.