Quick-release type spray head fixing and adjusting support

Abstract

The invention relates to the technical field of continuous ink-jet printing machines, in particular to a quick-release type nozzle fixing and adjusting support which comprises a sliding rail, an arc-shaped support, a fixing support, a sliding block and a sliding adjusting screw, the sliding rail is fixedly installed on a nozzle, the sliding block is slidably assembled on the sliding rail, the arc-shaped support is attached to the side, away from the nozzle, of the sliding rail, and the fixing support is fixed to the sliding rail. One end of the fixed support is connected with the arc-shaped support, the end, away from the arc-shaped support, of the fixed support is connected to the ink-jet printer, the sliding adjusting screw penetrates through the arc-shaped support and is in threaded connection with the sliding block, and the sliding rail allows the sliding block to move in the axial direction of the sliding adjusting screw. The device has the effects that the spray head is rapidly disassembled, angle adjustment is accurate, and operation is convenient and fast.

Description

Technical Field

[0001] The present application relates to the technical field of continuous inkjet printers, and in particular to a quick-detachable nozzle fixing and adjusting bracket. Background Art

[0002] An inkjet printer is a device that prints patterns, text, or numbers on surfaces through a non-contact method. It is widely used in industries such as packaging, logistics, and food. Continuous inkjet printers use pressure to eject ink from a nozzle, forming droplets. These droplets are then charged and deflected to create a mark on the surface. The position and angle of the printer's printhead directly affect printing accuracy. In practice, the printhead must adjust the distance and angle of the printhead to ensure clear and accurate marking. This adjustment typically relies on a support structure that controls the movement of the printhead.

[0003] Patent document CN221678306U discloses a square printhead fixed adjustment bracket. Its adjustment structure primarily consists of a curved slider fixed to the printhead, a curved support connecting the printer and the printhead, a sliding hole, a curved hole, and a fastening bolt. Specifically, the printer achieves adjustment through the cooperation of the curved slider and the curved support. By loosening the fastening bolt, the printhead can move forward and backward along the sliding hole of the curved slider to adjust the printing distance, and simultaneously rotate circumferentially around the curved hole of the curved support to adjust the printing angle. Once adjusted to the desired position, the fastening bolt is tightened to complete the fixation.

[0004] Regarding the aforementioned related technologies, since the printheads require regular cleaning, frequent disassembly requires multiple removals of the fastening bolts to separate the printhead from the bracket, making the operation cumbersome and time-consuming. When the printheads are disassembled and reinstalled, they must be adjusted again to meet usage requirements. This not only increases operational complexity, but also affects production efficiency and causes certain inconveniences for customers on-site. Summary of the Invention

[0005] In view of the shortcomings of the prior art, one of the purposes of the present invention is to provide a quick-detachable nozzle fixing and adjusting bracket.

[0006] This application provides a quick-detachable nozzle fixing and adjusting bracket, which adopts the following technical solution: The quick-release nozzle fixed adjustment bracket includes a slide rail, an arc-shaped support, a fixed support, a slider and a sliding adjustment screw. The slide rail is fixedly installed on the nozzle, and the slider is slidably assembled on the slide rail. The arc-shaped support is located on the side of the slide rail away from the nozzle. One end of the fixed support is connected to the arc-shaped support, and the end of the fixed support away from the arc-shaped support is connected to the inkjet printer. The sliding adjustment screw is passed through the arc-shaped support and is screwed to the slider. The slide rail allows the slider to move along the axial direction of the sliding adjustment screw.

[0007] By adopting the above technical solution, when it is necessary to adjust the printing distance of the print head, after loosening the sliding adjustment screw, the slider can move along the slide rail to adjust the printing distance of the print head. After the printing distance is adjusted, tighten the sliding adjustment screw to fix the position of the print head, ensuring that the print head maintains a precise position during work; and the slide rail allows the slider to move axially along the sliding adjustment screw, making the disassembly process faster. Only the screw needs to be loosened to reduce the clamping force, so that the slide rail and the arc support can be quickly separated, and the print head can be removed without removing the sliding adjustment screw.

[0008] Preferably, a reset spring is sleeved on the sliding adjustment screw, one end of the reset spring abuts against the slider, and the end of the reset spring away from the slider abuts against the arc support, and the reset spring makes the slider and the arc support tend to move away from each other.

[0009] By adopting the above technical solution, when assembling the nozzle, the sliding adjustment screw is tightened, and the arc-shaped support and the slider compress the spring; when disassembling the nozzle, the sliding adjustment screw is loosened, and the elastic potential energy of the reset spring is released, and the reset spring pushes the slider to separate from the slide rail, making the nozzle disassembly more efficient; at the same time, due to the elastic potential energy of the reset spring, the slider can always maintain a distance from the arc-shaped support, reserving assembly space for the installation of the slide rail and the nozzle, and the nozzle can be reset by directly installing the nozzle.

[0010] Preferably, an internal threaded hole is provided at one end of the sliding adjustment screw that is screwed into the sliding block, a limiting screw is threadedly connected in the internal threaded hole, the screw head diameter of the limiting screw is larger than the screw rod diameter of the sliding adjustment screw, and a groove is provided on the side of the sliding block away from the arc-shaped support, and the screw head of the limiting screw is placed in the groove.

[0011] By adopting the above technical solution, the head diameter of the limit screw is larger than the screw diameter of the sliding adjustment screw, thereby avoiding the risk of over-loosening the sliding adjustment screw when turning the sliding adjustment screw, resulting in the risk of directly unscrewing the sliding adjustment screw, which will cause the printing distance to need to be readjusted after the nozzle is reassembled.

[0012] Preferably, the slide groove formed on the slide rail along the inkjet direction of the nozzle is a T-shaped slide groove, and the slider is slidably assembled in the T-shaped slide groove.

[0013] By adopting the above technical solution, the T-shaped groove enables the slider to slide along the inkjet axis of the printhead, meeting the requirements of printhead position adjustment. The contour of the T-shaped groove also forms a limit, preventing the slider from vertically disengaging from the groove, ensuring the stable operation of the connection structure during adjustment. During assembly, the slider slides into the T-shaped groove, which is easy to operate. When tightening the sliding adjustment screw, the close engagement between the slider and the T-shaped groove can effectively withstand axial tension.

[0014] Preferably, the arc-shaped support is provided with an arc-shaped sliding groove along its circumference, and the sliding adjustment screw passes through the arc-shaped sliding groove and is screwed to the slider.

[0015] By adopting this technical solution, when the sliding adjustment screw is loosened, the curved groove allows the sliding adjustment screw to drive the nozzle along the curved groove to adjust the nozzle angle. After the adjustment is in place, tighten the sliding adjustment screw, and the angle of the nozzle is fixed by the cooperation of the curved groove and the sliding adjustment screw.

[0016] Preferably, an inner arc gasket is provided on the side of the arc support close to the slide rail, and an outer arc gasket is provided on the side of the arc support away from the slide rail, and the inner arc gasket and the outer arc gasket are located on both sides of the arc slide groove, and a rotating adjustment screw is provided on the side of the outer arc gasket away from the inner arc gasket, and the rotating adjustment screw is passed through the outer arc gasket and the inner arc gasket, and the sliding adjustment screw is sequentially passed through the outer arc gasket and the inner arc gasket, and is screwed to the slider.

[0017] By adopting the above technical solution, when the adjusting screw is loosened, the inner arc gasket and the outer arc gasket release their clamping of the arc support, so that the nozzle can rotate freely along the arc slide, which is convenient for quick adjustment to the required printing angle; after adjustment, the adjusting screw is tightened and rotated, and the inner arc gasket and the outer arc gasket are tightly fitted by extrusion to fix the arc support, effectively resisting external force and vibration interference, and ensuring that the nozzle angle is stable and does not deviate.

[0018] Preferably, a return spring is sleeved on the sliding adjustment screw, one end of the return spring abuts against the slider, and the end of the return spring away from the slider abuts against the inner arc gasket, and the return spring makes the slider and the inner arc gasket tend to move away from each other.

[0019] By adopting the above technical solution, when adjusting the position or angle of the nozzle, after loosening the sliding adjustment screw, the elastic potential released by the return spring allows the slider to move along the slide rail, which is convenient for quickly adjusting the printing distance; when tightening the sliding adjustment screw, the reverse elastic force generated by the pressure of the return spring cooperates with the sliding adjustment screw to further achieve the fastening of the inner arc gasket and the outer arc gasket; when disassembling the nozzle, the return spring pushes the slider to separate from the slide rail, realizing quick disassembly of the nozzle.

[0020] Preferably, the arc support is provided with a snap-in groove for cooperating with the inner arc gasket and the outer arc gasket to slide circumferentially along the arc support, the snap-in groove is located on both side edges of the arc slide, the inner arc gasket and the outer arc gasket are embedded in the arc slide, the inner arc gasket and the outer arc gasket slide in the arc slide, and the snap-in groove limits the axial sliding of the inner arc gasket and the outer arc gasket.

[0021] By adopting the above technical solution, the clamping groove restricts the axial sliding of the inner arc gasket and the outer arc gasket, so that when the angle of the nozzle is adjusted, the inner arc gasket and the outer arc gasket can only slide along the arc groove, effectively avoiding the angle deviation caused by axial movement during the adjustment process, and ensuring that the nozzle rotates along the arc groove.

[0022] Preferably, a threaded boss is provided on the side of the inner arc gasket close to the outer arc gasket, a positioning groove is provided on the side of the outer arc gasket close to the inner arc gasket, and the threaded boss is assembled in the positioning groove, and the rotating adjustment screw is passed through the threaded boss of the inner arc gasket and the positioning groove of the outer arc gasket.

[0023] By adopting the above technical solution, the threaded boss of the inner arc gasket is engaged with the positioning groove of the outer arc gasket. When the adjusting screw is rotated to apply pressure, they can tightly engage, effectively enhancing the clamping force of the inner arc gasket and the outer arc gasket on the arc support, avoiding the angle deviation of the nozzle during the printing process due to insufficient clamping force, so that the nozzle can still maintain a precise printing angle under frequent use and vibration environment, ensuring the stable operation of the printing operation.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. When the print distance of the print head needs to be adjusted, loosen the sliding adjustment screw and the slider will move along the slide rail to adjust the print distance of the print head. After the print distance is adjusted, tighten the sliding adjustment screw to fix the print head position, ensuring that the print head maintains a precise position during operation. The slide rail allows the slider to move axially along the sliding adjustment screw, making the disassembly process faster. Simply loosen the screw to reduce the clamping force, and the slide rail and the arc support can be quickly separated. The print head can be removed without removing the sliding adjustment screw. 2. When assembling the nozzle, tighten the sliding adjustment screw to compress the spring between the arc support and the slider. When disassembling the nozzle, loosen the sliding adjustment screw to release the elastic potential energy of the reset spring, which pushes the slider to separate from the slide rail, making nozzle disassembly more efficient. At the same time, the elastic potential energy of the reset spring can keep the slider and the arc support at a constant distance, reserving assembly space for the installation of the slide rail and nozzle. The nozzle can be reset by directly installing the nozzle. 3. The head diameter of the limit screw is larger than the screw diameter of the sliding adjustment screw, which avoids the risk of over-loosening the sliding adjustment screw when turning it, resulting in the risk of directly unscrewing the sliding adjustment screw, which will require re-adjusting the printing distance after the print head is reassembled; at the same time, the groove opened on the slider allows the screw head of the limit screw to be completely placed in the groove, avoiding the screw head of the limit screw from hindering the sliding of the slider when moving the slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1This is a schematic diagram of the overall structure of the quick-detachable nozzle fixing and adjusting bracket according to an embodiment of the present application; Figure 2 This is a schematic diagram showing the structure of the embodiment of the present application, showing the nozzle being removed from the arc-shaped support; Figure 3 is an exploded view of an embodiment of the present application; Figure 4 This is a structural diagram showing the assembly relationship of the nozzle in the embodiment of the present application; Figure 5 for Figure 4 Enlarged view of part A.

[0026] Figure numerals: 1. nozzle; 2. slide rail; 3. arc-shaped support; 4. fixed support; 5. slider; 6. sliding adjustment screw; 7. reset spring; 8. internal threaded hole; 9. limit screw; 10. groove; 11. arc-shaped slide groove; 12. inner arc-shaped gasket; 13. outer arc-shaped gasket; 14. rotating adjustment screw; 15. snap-in groove; 16. threaded boss; 17. positioning groove. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 -Attached Figure 5 This application is described in further detail.

[0028] The embodiment of the present application discloses a quick-release nozzle fixing and adjusting bracket.

[0029] Reference Figure 1 、 Figure 2 and Figure 3 A quick-detachable nozzle fixed adjustment bracket includes a slide rail 2, an arc-shaped support 3, a fixed support 4, a slider 5 and a sliding adjustment screw 6. The slide rail 2 is fixedly installed on the nozzle 1, and the slider 5 is slidably assembled on the slide rail 2. The arc-shaped support 3 is located on the side of the slide rail 2 away from the nozzle 1. One end of the fixed support 4 is connected to the arc-shaped support 3, and the end of the fixed support 4 away from the arc-shaped support 3 is connected to the inkjet printer. The sliding adjustment screw 6 is passed through the arc-shaped support 3 and is screwed to the slider 5. The slide rail 2 allows the slider 5 to move axially along the sliding adjustment screw 6.

[0030] When it is necessary to adjust the position of the nozzle 1, loosen the sliding adjustment screw 6, and the slider 5 can move along the slide rail 2, thereby driving the nozzle 1 to adjust the printing distance. After adjusting to the right position, tighten the sliding adjustment screw 6 to fix the nozzle 1; when it is necessary to quickly disassemble the nozzle 1, since the slide rail 2 allows the slider 5 to move axially along the sliding adjustment screw 6, it is only necessary to loosen the sliding adjustment screw 6 to reduce the clamping force between the slider 5 and the sliding adjustment screw 6, so that the slide rail 2 and the arc support 3 can be quickly separated, thereby realizing the rapid disassembly of the nozzle 1.

[0031] Preferably, the slide rail 2 and the nozzle 1 are integrally formed, formed into a single, integral structure through a process such as casting or injection molding. This integral design reduces the number of parts and assembly steps, reduces assembly errors during the production process, and ensures that the connection between the slide rail 2 and the nozzle 1 remains stable during frequent disassembly and adjustment of the nozzle 1.

[0032] Reference Figure 3 、 Figure 4 and Figure 5 A return spring 7 is sleeved on the sliding adjustment screw 6. One end of the return spring 7 abuts against the slider 5, and the end of the return spring 7 away from the slider 5 abuts against the arc support 3. The return spring 7 causes the slider 5 and the arc support 3 to have a tendency to move away from each other. When the nozzle 1 is disassembled, after loosening the sliding adjustment screw 6, the return spring 7 releases its elastic potential energy to push the slider 5, causing the slider 5 to separate from the slide rail 2. At this time, the elastic potential energy of the spring is not completely released, but the elastic design allows the slider 5 to remain in a specific position in the slide groove. When the nozzle 1 is installed again, the slider 5 is pre-tightened by the return spring 7, which reserves assembly space for the installation of the slide rail 2 and the nozzle 1. Simply pushing the nozzle 1 can quickly align the slider 5 with the slide rail 2, thereby achieving rapid installation of the nozzle 1.

[0033] An internally threaded hole 8 is defined at one end of the slider 5 where the sliding adjustment screw 6 is threaded. A limit screw 9 is threadedly connected thereto. The diameter of the screw head of the limit screw 9 is larger than the diameter of the screw shaft of the sliding adjustment screw 6. A groove 10 is defined on the side of the slider 5 away from the arc-shaped support 3, and the head of the limit screw 9 is seated in the groove 10. When the nozzle 1 is disassembled, the limit screw 9 is seated in the groove 10 of the slider 5. Since the diameter of the screw head of the limit screw 9 is larger than the diameter of the screw shaft of the sliding adjustment screw 6, the adjustment screw is prevented from falling off the slider 5. At the same time, the head of the limit screw 9 is seated in the groove 10, which prevents the movement of the slider 5 in the slide rail 2 from being hindered.

[0034] Reference Figure 5 The slide rail 2 defines a T-shaped groove along the direction of inkjet from the nozzle 1, and the slider 5 is slidably assembled within the T-shaped groove. During assembly, the slider 5 is inserted into the T-shaped groove so that it can slide along the direction of the T-shaped groove and cannot be vertically separated from the T-shaped groove. When the slide adjustment screw 6 is tightened, the slider 5 and the T-shaped groove are subjected to the axial tension along the slide adjustment screw 6, preventing the slider 5 from dislodging from the T-shaped groove.

[0035] Reference Figure 3The arc-shaped support 3 is provided with an arc-shaped groove 11 along its circumference. The sliding adjustment screw 6 passes through the arc-shaped groove 11 and is screwed to the slider 5. When the angle of the nozzle 1 needs to be adjusted, the sliding adjustment screw 6 is loosened. Since the arc-shaped support 3 is provided with the arc-shaped groove 11, the sliding adjustment screw 6 can move along the circumference of the arc-shaped groove 11, thereby driving the slider 5, the slide rail 2 and the nozzle 1 to rotate along the arc-shaped groove 11 to adjust the printing angle. At the same time, the slider 5 can move along the slide rail 2 to adjust the printing distance. After the adjustment is in place, the sliding adjustment screw 6 is tightened. The angle of the nozzle 1 and the printing distance can be fixed through the cooperation of the arc-shaped groove 11 and the sliding adjustment screw 6.

[0036] An inner arc gasket 12 is provided on the side of the arc support 3 close to the slide rail 2, and an outer arc gasket 13 is provided on the side of the arc support 3 away from the slide rail 2, and the inner arc gasket 12 and the outer arc gasket 13 are located on both sides of the arc slide groove 11, and a rotation adjustment screw 14 is provided on the side of the outer arc gasket 13 away from the inner arc gasket 12. The rotation adjustment screw 14 is passed through the outer arc gasket 13 and the inner arc gasket 12, and the sliding adjustment screw 6 is sequentially passed through the outer arc gasket 13 and the inner arc gasket 12, and is screwed to the slider 5. When adjusting the angle of the nozzle 1, loosen and rotate the adjusting screw 14 to reduce the clamping force of the inner arc gasket 12 and the outer arc gasket 13 on both sides of the arc chute 11, so that the nozzle 1 can rotate along the arc chute 11. When the position of the nozzle 1 is adjusted to the required angle, tighten and rotate the adjusting screw 14 to fix the arc support 3 by squeezing the inner arc gasket 12 and the outer arc gasket 13 to ensure that the printing angle is fixed.

[0037] A return spring 7 is sleeved on the sliding adjustment screw 6. One end of the return spring 7 abuts against the slider 5, and the end of the return spring 7 away from the slider 5 abuts against the inner arc-shaped gasket 12. The return spring 7 causes the slider 5 and the inner arc-shaped gasket 12 to tend to move away from each other. When the position or angle of the nozzle 1 needs to be adjusted, the sliding adjustment screw 6 is loosened. As the sliding adjustment screw 6 is loosened, the inner arc-shaped gasket 12 reduces the pressure on the return spring 7. The return spring 7 releases its elastic potential energy, allowing the slider 5 to move along the slide rail 2 to adjust the printing distance. After the adjustment is in place, the sliding adjustment screw 6 is tightened. The inner arc-shaped gasket 12 then squeezes the return spring 7. The return spring 7 is compressed and generates a reverse elastic force, which cooperates with the sliding adjustment screw 6 to fasten the slider 5 to the arc-shaped support 3. When the nozzle 1 needs to be disassembled, the sliding adjustment screw 6 is loosened. The pressure of the inner arc-shaped gasket 12 on the return spring 7 is further reduced, and the return spring 7 pushes the slider 5 to separate from the slide rail 2.

[0038] The adjustment functions of the sliding adjustment screw 6 and the rotating adjustment screw 14 are independent of each other. The sliding adjustment screw 6 is used to adjust the axial position of the nozzle 1, and the rotating adjustment screw 14 is used to adjust the angle of the nozzle 1. When the printing distance of the nozzle 1 needs to be changed, the sliding adjustment screw 6 is turned to drive the slider 5 to slide along the inkjet axis of the nozzle 1 within the slide rail 2. The return spring 7 is compressed or released. At this time, the rotating adjustment screw 14 remains fixed, the clamping state of the inner and outer arc-shaped gaskets 12 and 13 on the arc-shaped support 3 remains unchanged, and the angle of the nozzle 1 does not shift. When the angle of the nozzle 1 needs to be adjusted, only the rotating adjustment screw 14 needs to be turned to change the clamping force of the inner and outer arc-shaped gaskets 12 and 13 on the arc-shaped support 3, so that the nozzle 1 moves along the arc-shaped slide groove 11. During this process, the sliding adjustment screw 6 and the slider 5 will not produce axial displacement, and will not affect the set printing distance of the nozzle 1.

[0039] Reference Figure 3 The arc support 3 is provided with a snap-in groove 15 for cooperating with the inner arc gasket 12 and the outer arc gasket 13 to slide circumferentially along the arc support 3. The snap-in groove 15 is located on the two side edges of the arc slide 11. The inner arc gasket 12 and the outer arc gasket 13 are embedded in the arc slide 11. The inner arc gasket 12 and the outer arc gasket 13 slide in the arc slide 11, and the snap-in groove 15 limits the axial sliding of the inner arc gasket 12 and the outer arc gasket 13. When the angle of the nozzle 1 needs to be adjusted, the adjusting screw 14 is loosened and rotated, and the inner arc gasket 12 and the outer arc gasket 13 are restricted in the clamping groove 15 and cannot slide axially. At this time, the nozzle 1 can be rotated along the arc groove 11; when the nozzle 1 is adjusted to the required angle, the adjusting screw 14 is tightened and rotated. The adjusting screw 14 squeezes the outer arc gasket 13 and the inner arc gasket 12 so that the two fit tightly in the clamping groove 15, thereby fixing the nozzle 1.

[0040] A threaded boss 16 is provided on the side of the inner arc-shaped gasket 12 close to the outer arc-shaped gasket 13, and a positioning groove 17 is provided on the side of the outer arc-shaped gasket 13 close to the inner arc-shaped gasket 12. The threaded boss 16 is assembled in the positioning groove 17, and the rotating adjustment screw 14 is inserted into the threaded boss 16 of the inner arc-shaped gasket 12 and the positioning groove 17 of the outer arc-shaped gasket 13. After the printhead 1 is adjusted to the target angle, the rotating adjustment screw 14 is tightened and rotated. The rotating adjustment screw 14 passes through the threaded boss 16 and the positioning groove 17 and applies pressure to tightly fit the threaded boss 16 and the positioning groove 17, thereby enhancing the clamping force of the inner arc-shaped gasket 12 and the outer arc-shaped gasket 13 on the arc support 3, thereby fixing the angle of the printhead 1 and ensuring the stability of the angle of the printhead 1 during printing.

[0041] The implementation principle of the embodiment of this application is: When the nozzle 1 needs to be assembled, the slide rail 2 and the slider 5 are slid together, and the nozzle 1 is pushed to the target printing distance and then the slide adjustment screw 6 is tightened. The slide adjustment screw 6 drives the slider 5 to squeeze the reset spring 7, so that the slider 5 fits tightly with the T-shaped slide groove to fix the position of the nozzle 1; when the nozzle 1 needs to be disassembled, the slide adjustment screw 6 is loosened, and the reset spring 7 releases the elastic potential energy to push the slider 5, so that the arc support 3 is separated from the slide rail 2.

[0042] When the angle of the nozzle 1 needs to be adjusted, loosen the rotating adjustment screw 14, the threaded boss 16 of the inner arc gasket 12 and the positioning groove 17 of the outer arc gasket 13 are released from the squeeze in the clamping groove 15, and the nozzle 1 is rotated along the arc groove 11. After the nozzle 1 is adjusted to the required angle, tighten the rotating adjustment screw 14, and the arc support 3 is fixed by the engagement of the threaded boss 16 and the positioning groove 17. When adjusting the axial position of the nozzle 1, the rotating adjustment screw 14 remains tightened. When the angle of the nozzle 1 is adjusted, the sliding adjustment screw 6 does not affect the printing distance of the nozzle 1, ensuring that the forward and backward sliding and angle adjustment of the nozzle 1 are independent of each other.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A quick-release nozzle fixing and adjusting bracket, characterized in that: The invention comprises a slide rail (2), an arc-shaped support (3), a fixed support (4), a slider (5) and a sliding adjustment screw (6); the slide rail (2) is fixedly mounted on the nozzle (1); the slider (5) is slidably assembled on the slide rail (2); the arc-shaped support (3) is located on the side of the slide rail (2) away from the nozzle (1); one end of the fixed support (4) is connected to the arc-shaped support (3); the end of the fixed support (4) away from the arc-shaped support (3) is connected to the inkjet printer; the sliding adjustment screw (6) is passed through the arc-shaped support (3) and is screwed to the slider (5); the slide rail (2) allows the slider (5) to move axially along the sliding adjustment screw (6).

2. The quick-detachable nozzle fixing and adjusting bracket according to claim 1, characterized in that: A return spring (7) is sleeved on the sliding adjustment screw (6), one end of the return spring (7) abuts against the slider (5), and the end of the return spring (7) away from the slider (5) abuts against the arc support (3), and the return spring (7) makes the slider (5) and the arc support (3) tend to move away from each other.

3. The quick-detachable nozzle fixing and adjusting bracket according to claim 2, characterized in that: An internal threaded hole (8) is provided at one end of the sliding adjustment screw (6) that is screwed into the slider (5), and a limit screw (9) is threadedly connected in the internal threaded hole (8). The screw head diameter of the limit screw (9) is larger than the screw rod diameter of the sliding adjustment screw (6).

4. The quick-detachable nozzle fixing and adjusting bracket according to claim 1, characterized in that: The slide rail (2) has a T-shaped slide groove formed along the inkjet direction of the nozzle (1), and the slider (5) is slidably assembled in the T-shaped slide groove.

5. The quick-detachable nozzle fixing and adjusting bracket according to claim 1, characterized in that: The arc-shaped support (3) is provided with an arc-shaped sliding groove (11) along its circumference, and the sliding adjustment screw (6) passes through the arc-shaped sliding groove (11) and is screwed to the slider (5).

6. The quick-detachable nozzle fixing and adjusting bracket according to claim 5, characterized in that: An inner arc gasket (12) is provided on the side of the arc support (3) close to the slide rail (2), and an outer arc gasket (13) is provided on the side of the arc support (3) away from the slide rail (2), and the inner arc gasket (12) and the outer arc gasket (13) are located on both sides of the arc slide groove (11), and a rotation adjustment screw (14) is provided on the side of the outer arc gasket (13) away from the inner arc gasket (12), and the rotation adjustment screw (14) is passed through the outer arc gasket (13) and the inner arc gasket (12), and the sliding adjustment screw (6) is passed through the outer arc gasket (13) and the inner arc gasket (12) in sequence, and is screwed to the slider (5).

7. The quick-detachable nozzle fixing and adjusting bracket according to claim 6, characterized in that: A return spring (7) is sleeved on the sliding adjustment screw (6), one end of the return spring (7) abuts against the slider (5), and the end of the return spring (7) away from the slider (5) abuts against the inner arc-shaped gasket (12), and the return spring (7) makes the slider (5) and the inner arc-shaped gasket (12) tend to move away from each other.

8. The quick-detachable nozzle fixing and adjusting bracket according to claim 6, characterized in that: The arc support (3) is provided with a snap-in groove (15) for cooperating with the inner arc gasket (12) and the outer arc gasket (13) to slide along the circumferential direction of the arc support (3); the snap-in groove (15) is located at the two side edges of the arc slide (11); the inner arc gasket (12) and the outer arc gasket (13) are embedded in the arc slide (11); the inner arc gasket (12) and the outer arc gasket (13) slide in the arc slide (11); and the snap-in groove (15) limits the axial sliding of the inner arc gasket (12) and the outer arc gasket (13).

9. The quick-detachable nozzle fixing and adjusting bracket according to claim 6, characterized in that: A threaded boss (16) is provided on one side of the inner arc-shaped gasket (12) close to the outer arc-shaped gasket (13), a positioning groove (17) is provided on one side of the outer arc-shaped gasket (13) close to the inner arc-shaped gasket (12), and the threaded boss (16) is assembled in the positioning groove (17), and the rotating adjustment screw (14) is passed through the threaded boss (16) of the inner arc-shaped gasket (12) and the positioning groove (17) of the outer arc-shaped gasket (13).

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