Nozzle insertion adjustment device

Abstract

This invention provides a nozzle insertion point adjustment device for adjusting the position of an insertion nozzle in a nozzle module relative to a reference nozzle. The device includes: an adjustment bracket with an adjustment space for accommodating the nozzle module to be adjusted; two helical adjustment members assembled on the adjustment bracket, the axes of the two helical adjustment members being perpendicular to each other and their ends extending into the adjustment space and correspondingly abutting against the insertion nozzle; and two elastic counter-pushing members, one of which abuts against the insertion nozzle from opposite sides of its corresponding helical adjustment member, and the other of which abuts against the insertion nozzle from opposite ends of its corresponding helical adjustment member. This invention, by providing helical adjustment members and elastic counter-pushing members on the adjustment bracket, allows for fine-tuning of the insertion nozzle's position in the horizontal plane by rotating the helical adjustment members to push against the insertion nozzle and applying a reverse elastic counter-pushing force to the elastic counter-pushing members, resulting in high adjustment accuracy.

Description

Technical Field

[0001] This invention relates to the field of digital printer technology, and in particular to a printhead insertion point adjustment device. Background Technology

[0002] Existing digital printers use printheads whose resolution is limited by their own structure, making it difficult to further improve the resolution at a low cost after reaching a certain stage. In this case, to meet the application requirements of higher resolution, the industry will install two or more printheads at different sizes, a technique known as interpolation.

[0003] Typically, two printheads are pre-installed as a group on a corresponding outer frame to form a printhead module. The printhead module is then assembled onto the digital printer frame via the outer frame. One of the two printheads in each module is a reference printhead, whose position is generally not adjustable, while the other is a plug printhead whose position can be adjusted relative to the reference printhead. Both the reference and plug printheads have screw holes, and the outer frame has through holes with a diameter larger than these screw holes. Bolts pass through these through holes and are screwed into the screw holes for fixation. When adjustment is needed, the bolts are loosened (without fully removing them from the screw holes) to adjust the position of the plug printhead relative to the reference printhead. After adjustment, the bolts are tightened to secure the printhead.

[0004] However, the inventors found in practice that after the printhead module was assembled onto the digital printer, it was constrained by the internal space of the digital printer, making it quite difficult to adjust the position of the printhead. Moreover, the adjustment effect was difficult to verify and could only be checked repeatedly by printing patterns. Summary of the Invention

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a nozzle insertion point adjustment device that can conveniently perform insertion point adjustment offline and conveniently check the adjustment effect offline.

[0006] To solve the above-mentioned technical problems, the embodiments of the present invention adopt the following technical solution: a nozzle insertion point adjustment device, used to adjust the position of the insertion point nozzle in the nozzle module relative to the reference nozzle, comprising:

[0007] An adjustment bracket having an adjustment space for accommodating a nozzle module to be adjusted, wherein the outer frame of the nozzle module is fixed to the adjustment bracket;

[0008] Two helical adjusting components assembled on the adjusting bracket, the axes of the two helical adjusting components being perpendicular to each other, and their ends extending into the adjusting space and correspondingly abutting against the insertion nozzle in two mutually perpendicular directions; and

[0009] Two elastic thrust members are assembled on the adjustment bracket and are arranged in a one-to-one correspondence with the two spiral adjustment members. One elastic thrust member and its corresponding spiral adjustment member abut against the insertion nozzle from opposite sides of the insertion nozzle, while the other elastic thrust member and its corresponding spiral adjustment member abut against the insertion nozzle from opposite ends of the insertion nozzle.

[0010] Furthermore, the adjustment bracket includes a first side plate and a second side plate arranged in parallel, and a first end plate and a second end plate arranged in parallel with each other and perpendicular to the first side plate and the second side plate. The first side plate, the first end plate, the second side plate and the second end plate surround and are connected in sequence to form the adjustment space. The first side plate is located on the side closer to the insertion nozzle and the second side plate is located on the side closer to the reference nozzle.

[0011] Furthermore, a spiral adjusting component is assembled on the first end plate, and a first mounting block is assembled on the second end plate near the first side plate. Another spiral adjusting component is assembled on the first mounting block, and a clearance notch is correspondingly provided on the first side plate for the operating part of the spiral adjusting component assembled on the first mounting block to extend out.

[0012] Furthermore, each of the first side plate and the first end plate is equipped with one of the aforementioned spiral adjustment components.

[0013] Furthermore, the second end plate is provided with a second mounting block that protrudes into the adjustment space and is located between the reference nozzle and the insertion nozzle, and one of the elastic thrust members is assembled on the second end plate and the second mounting block.

[0014] Furthermore, the elastic push-back component is a ball screw.

[0015] Furthermore, the first side plate, the second side plate, the first end plate, and the second end plate are all hollowed out to form operation holes.

[0016] Furthermore, the top surfaces of the first and second side plates are provided with screw holes for assembling the outer frame.

[0017] Furthermore, the adjustment bracket also includes a rectangular base plate, and the first side plate, the second side plate, the first end plate, and the second end plate are assembled at the edges of the rectangular base plate in each direction.

[0018] Furthermore, the spiral adjusting component is a micro-head, and the free end face of the micro-head used to abut against the insertion nozzle is a convex arc surface.

[0019] By adopting the above technical solution, the embodiments of the present invention have at least the following beneficial effects: The embodiments of the present invention use an adjusting bracket to mount the nozzle module, and provide two axially perpendicular spiral adjusting members and two elastic thrust members corresponding to the spiral adjusting members on the adjusting bracket. One of the elastic thrust members and its corresponding spiral adjusting member abuts against the nozzle from opposite sides of the nozzle, while the other elastic thrust member and its corresponding spiral adjusting member abut against the nozzle from opposite ends. The insertion nozzle can be moved axially forward and backward by rotating the corresponding spiral adjustment component, thereby pushing the insertion nozzle to move (rotate or translate) in the corresponding direction. At the same time, the elastic back thrust component applies a reverse elastic back thrust to the insertion nozzle, making the movement of the insertion nozzle smoother. Moreover, when the rotation adjustment component is over-adjusted and needs to be adjusted back, the elastic back thrust component can push the insertion nozzle to move back to its original position synchronously. This enables fine adjustment of the two-dimensional position of the insertion nozzle in the horizontal plane. Furthermore, the spiral adjustment component has high adjustment accuracy and strong controllability through spiral forward and backward movement. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of an optional embodiment of the nozzle insertion point adjustment device of the present invention.

[0021] Figure 2 This is a three-dimensional structural diagram of an optional embodiment of the nozzle insertion point adjustment device of the present invention, showing a nozzle module loaded with nozzles to be adjusted.

[0022] Figure 3 This is a cross-sectional structural schematic diagram of the nozzle insertion point adjustment device of the present invention. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the following illustrative embodiments and descriptions are only used to explain the present invention and are not intended to limit the present invention. Moreover, the embodiments and features in the embodiments of the present invention can be combined with each other unless otherwise specified.

[0024] like Figures 1-3 As shown, an optional embodiment of the present invention provides a nozzle insertion point adjustment device for adjusting the position of the insertion nozzle 10 in the nozzle module 1 relative to the reference nozzle 12, comprising:

[0025] Adjustment bracket 2, the adjustment bracket 2 having an adjustment space 20 for accommodating the nozzle module 1 to be adjusted, the outer frame 14 of the nozzle module 1 being fixed to the adjustment bracket 2;

[0026] Two spiral adjusting components 4 are assembled on the adjusting bracket 2, with their axes perpendicular to each other and their ends extending into the adjusting space 20 and abutting against the insertion nozzle 10 from two mutually perpendicular directions; and

[0027] Two elastic push members 6 are assembled on the adjustment bracket 2 and are arranged in a one-to-one correspondence with the two spiral adjustment members 4. One elastic push member 6 and its corresponding spiral adjustment member 4 abut against the insertion nozzle 10 from opposite sides, while the other elastic push member 6 and its corresponding spiral adjustment member 4 abut against the insertion nozzle 10 from opposite ends.

[0028] The specific process of adjusting the insertion point of the nozzle 10 in a nozzle module 1 using the nozzle insertion point adjustment device provided in this embodiment of the invention is as follows:

[0029] First, assemble the nozzle module 1 to be adjusted (including a plug nozzle 10 and a reference nozzle 12) onto the adjustment bracket 2;

[0030] Then, by rotating and adjusting one of the rotation adjustment members 4 in the width direction of the insertion nozzle 10, the insertion nozzle is pushed to rotate relative to the reference nozzle 12 (i.e., Figure 3 (As shown by arrow A) until the insertion nozzle 10 is rotated to the position (i.e., the insertion nozzle 10 is parallel to the reference nozzle 12), during this process, the elastic push member 6, which is opposite to the adjusted rotation adjustment member 4, always elastically presses against the insertion nozzle 10 so that the insertion nozzle 10 rotates smoothly and can push the insertion nozzle 10 back to its proper position when necessary.

[0031] Finally, rotate and adjust one of the rotation adjustment components 4 in the length direction of the insertion nozzle 10 to push the insertion nozzle to translate parallel to the reference nozzle 12 in the length direction (i.e., Figure 3 As indicated by arrow B, the adjustment is completed when the interpolation nozzle 10 is moved into place (i.e., the distance between each row of interpolation points on the interpolation nozzle 10 and each interpolation point of the adjacent row on the reference nozzle 12 reaches the expected value). During this process, the elastic push member 6, which is set opposite to the adjusted rotary adjustment member 4, always elastically presses against the interpolation nozzle 10 to make the interpolation nozzle 10 move smoothly and, if necessary, push the interpolation nozzle 10 back to its proper position.

[0032] In this embodiment, an adjusting bracket 2 is used to mount the nozzle module 1. Two axially perpendicular spiral adjusting members 4 and two elastic thrust members 6 corresponding to the spiral adjusting members 4 are mounted on the adjusting bracket 2. One elastic thrust member 6 and its corresponding spiral adjusting member 4 abut against the nozzle 10 from opposite sides, while the other elastic thrust member 6 and its corresponding spiral adjusting member 4 abut against the nozzle 10 from opposite ends. This allows for the control of the nozzle module 1 by... Rotating the corresponding spiral adjusting member 4 causes it to move axially forward and backward, thereby pushing the insertion nozzle 10 to move (rotate or translate) in the corresponding direction. At the same time, the elastic back thrust member 6 applies a reverse elastic back thrust to the insertion nozzle 107, making the movement of the insertion nozzle 10 smoother. Moreover, when the rotating adjusting member 4 is over-adjusted and needs to be adjusted back in the opposite direction, the elastic back thrust member 6 can push the insertion nozzle 10 to move back to its original position synchronously, thereby realizing the two-dimensional fine adjustment of the insertion nozzle 10 in the horizontal plane. Furthermore, the spiral adjusting member 4 has high adjustment accuracy and strong controllability through spiral forward and backward movement.

[0033] In one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the adjustment bracket 2 includes a first side plate 21 and a second side plate 22 arranged in parallel, and a first end plate 23 and a second end plate 24 arranged in parallel and perpendicular to the first side plate 21 and the second side plate 22. The first side plate 21, the first end plate 23, the second side plate 22 and the second end plate 24 are arranged together and connected in sequence to form the adjustment space 20. The first side plate 21 is located on the side closer to the insertion nozzle 10, and the second side plate 22 is located on the side closer to the reference nozzle 12. This embodiment uses the first side plate 21, the first end plate 23, the second side plate 22 and the second end plate 24 to form the adjustment space 20, which has a simple structure and is easy to assemble.

[0034] In one embodiment of the present invention, a spiral adjusting member 4 is assembled on the first end plate 23, and a first mounting block 25 is assembled on the second end plate 24 near the first side plate 21. Another spiral adjusting member 4 is assembled on the first mounting block 25. A clearance notch 210 is correspondingly provided on the first side plate 21 for the operating part 40 of the spiral adjusting member 4 assembled on the first mounting block 25 to extend out. By assembling a first mounting block 25 on the second end plate 24 and another spiral adjusting member 4 on the first mounting block 25, the distance between the spiral adjusting member 4 and the nozzle 10 can be effectively reduced, allowing the use of a spiral adjusting member 4 with a relatively small adjustment stroke, resulting in relatively lower cost.

[0035] In one embodiment of the present invention, a spiral adjusting member 4 is assembled on each of the first side plate 21 and the first end plate 23. This embodiment directly assembles the spiral adjusting member 4 on the first side plate 21 and the first end plate 23, resulting in a simpler structure and making it more suitable for adjusting spiral adjusting members 4 with longer strokes.

[0036] In one embodiment of the present invention, a second mounting block 26 is provided on the second end plate 24, protruding into the adjustment space 20 and located between the reference nozzle 12 and the insertion nozzle 10. One elastic thrust member 6 is assembled on both the second end plate 24 and the second mounting block 26. This embodiment achieves a more compact overall structure by providing a second mounting block 26 on the second end plate 24, located between the reference nozzle 12 and the insertion nozzle 10, and assembling one elastic thrust member 6 on it, while the other elastic thrust member 6 is assembled on the second end plate 24. In specific configurations, the elastic thrust member 6 can be coaxially arranged with the corresponding spiral adjustment member 4, taking into account the structural characteristics of the insertion nozzle 10. However, non-coaxial arrangement will not cause significant adverse effects. Figure 1 and Figure 3 As shown, one of the elastic thrust members 6 and the corresponding screw adjustment member 4 are coaxially arranged, while the other elastic thrust member 6 and the other corresponding screw adjustment member 4 are parallel but not coaxially arranged.

[0037] In one embodiment of the present invention, the elastic thrust member 6 is a ball screw. This embodiment uses a ball screw as the elastic thrust member 6, which is readily available, low in cost, and easy to adjust.

[0038] In one embodiment of the present invention, operation holes 27 are correspondingly formed on the first side plate 21, the second side plate 22, the first end plate 23, and the second end plate 24. This embodiment, by forming operation holes 27 on the first side plate 21, the second side plate 22, the first end plate 23, and the second end plate 24, facilitates the operation of the auxiliary component at the bottom of the insertion nozzle 10 through the operation holes 27 to achieve necessary adjustments, avoiding direct contact with the insertion nozzle 10 by hand. Furthermore, it reduces the weight of the entire device.

[0039] In one embodiment of the present invention, the top surfaces of the first side plate 21 and the second side plate 22 are provided with screw holes 28 for assembling the outer frame 14. In this embodiment, by providing screw holes 28 on the top surfaces of the first side plate 21 and the second side plate 22, the outer frame 14 of the nozzle module 1 can be assembled by means of bolts 280, which facilitates processing and assembly of the nozzle module 1.

[0040] In one embodiment of the present invention, the adjusting bracket 2 further includes a rectangular base plate 29, and the first side plate 21, the second side plate 22, the first end plate 23, and the second end plate 24 are assembled at the edges of the rectangular base plate 29 in each direction. This embodiment, by using a rectangular base plate 29 to correspondingly assemble the first side plate 21, the second side plate 22, the first end plate 23, and the second end plate 24, can improve the structural stability of the entire adjusting bracket 2.

[0041] In one embodiment of the present invention, the spiral adjusting component 4 is a micrometer head, and the free end face of the micrometer head used to abut against the insertion nozzle 10 is a convex arc surface. This embodiment, by using a micrometer head as the spiral adjusting component 4, achieves high adjustment accuracy and is also readily available, thus reducing the cost of the adjusting device.

[0042] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many variations under the guidance of the present invention without departing from the spirit and scope of the claims. These variations are all within the scope of protection of the present invention.

Claims

1. A nozzle dot adjustment device for adjusting the position of a dot nozzle with respect to a reference nozzle in a nozzle module, which is assembled on a digital printer by an outer frame when in operation, characterized in that, The application relates to a kind of adjusting bracket, which comprises: adjusting bracket, the adjusting bracket has adjusting space for accommodating the nozzle module to be adjusted, when adjusting, the outer frame of the nozzle module is fixed on the adjusting bracket, the insertion point nozzle and the reference nozzle are loaded on the adjusting bracket through the outer frame; two screw adjusting members assembled on the adjusting bracket, the axial direction of the two screw adjusting members is perpendicular to each other, and the ends of the two screw adjusting members extend into the adjusting space and correspondingly abut on the insertion point nozzle from two perpendicular directions; and two elastic counter-pushing members corresponding to the two screw adjusting members are arranged on the adjusting bracket, one of the elastic counter-pushing members and the corresponding screw adjusting member abut on the insertion point nozzle from opposite sides of the insertion point nozzle, and the other elastic counter-pushing member and the corresponding screw adjusting member abut on the insertion point nozzle from opposite ends of the insertion point nozzle. Rotating the screw adjusting member in the width direction of the insertion point nozzle to push the insertion point nozzle to rotate relative to the reference nozzle until the insertion point nozzle is parallel to the reference nozzle. Rotating the screw adjusting member in the length direction of the insertion point nozzle to push the insertion point nozzle to translate in the length direction parallel to the reference nozzle until the distance between each row of insertion points on the insertion point nozzle and each insertion point of the adjacent row on the reference nozzle reaches the expected value.

2. The nozzle insertion point adjustment device of claim 1, wherein The adjusting bracket comprises a first side plate and a second side plate arranged in parallel, and a first end plate and a second end plate arranged in parallel and perpendicular to the first side plate and the second side plate, the first side plate, the first end plate, the second side plate and the second end plate enclose and sequentially connect to form the adjusting space, the first side plate is located near the insertion point nozzle, and the second side plate is located near the reference nozzle.

3. The nozzle insertion point adjustment device of claim 2, wherein One of the screw adjusting members is assembled on the first end plate, a first mounting block is assembled on the second end plate near the first side plate, another screw adjusting member is assembled on the first mounting block, and an avoiding gap is provided on the first side plate corresponding to the operation part of the screw adjusting member assembled on the first mounting block.

4. The nozzle insertion point adjustment device of claim 2, wherein One of the screw adjusting members is assembled on the first side plate and the first end plate.

5. The nozzle insertion point adjustment device of claim 3 or 4, wherein A second mounting block is arranged on the second end plate and protrudes into the adjusting space and is between the reference nozzle and the insertion point nozzle, and one of the elastic counter-pushing members is assembled on the second end plate and the second mounting block.

6. The nozzle insertion point adjustment device of claim 5, wherein The elastic counter-pushing member is a wave bead screw.

7. The nozzle insertion point adjustment device of claim 2, wherein Operation holes are formed in the first side plate, the second side plate, the first end plate and the second end plate.

8. The nozzle insertion point adjustment device of claim 2, wherein Screw holes for assembling the outer frame are arranged on the top surface of the first side plate and the second side plate.

9. The nozzle insertion point adjustment device of claim 2, wherein The adjusting bracket further comprises a rectangular bottom plate, and the first side plate, the second side plate, the first end plate and the second end plate are assembled at the edges of the rectangular bottom plate in all directions.

10. The nozzle insertion point adjustment device of claim 1, wherein The screw adjusting member is a differential head, and the free end surface of the differential head for abutting on the insertion point nozzle is a convex arc surface.

Images