Multi-nozzle moving structure for ink-jet printer

By using a ball screw and synchronous belt pulley transmission system and limit photoelectric control, the problem of insufficient printhead movement accuracy in inkjet printers has been solved, achieving precise printhead position adjustment and stable transmission, avoiding jamming, and improving inkjet printing accuracy.

CN223546010UActive Publication Date: 2025-11-14SHANGHAI DRAGON PRINTING MACHINERY
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Patent Information

Application Number
CN202520117536.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-18
Publication Date
2025-11-14
Estimated Expiration
2035-01-18

AI Technical Summary

Technical Problem

The movement precision of the printhead in existing inkjet printers is not accurate enough, which can easily lead to jamming and inaccurate coding.

Method used

The system employs a ball screw and synchronous belt pulley transmission system, combined with limit photoelectric control, to achieve precise adjustment of the nozzle position. The combination of ball screw nut and synchronous belt pulley increases motor torque and reduces jamming, while limit photoelectric control precisely controls the nozzle position.

Benefits of technology

It achieves precise position control of the printhead, with no limit on the number of printheads, stable transmission, and an accuracy of ±0.1 mm, avoiding the problem of inkjet printing jamming.

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Abstract

The utility model discloses a multi-nozzle moving structure for an ink-jet printer, which relates to the technical field of ink-jet printers, and comprises two groups of racks, and further comprises a slide rail, a plurality of nozzles, a plurality of nozzles, a plurality of nozzles and a plurality of nozzles, one end of the transverse position adjusting mechanism is connected with the rack; the spray head fixing plate is connected with the other end of the transverse position adjusting mechanism and is in sliding connection with the sliding rail; and the spray head sleeve is connected with the spray head fixing plate, and a spray head is mounted on the spray head sleeve. The number of the sprayers is not limited, and 2-4 sprayers or more sprayers are generally mounted on each group of racks; the stepping motor is driven by a small belt wheel to drive a large belt wheel, so that the torque of the motor is improved, and the problem of jamming is avoided; and the precision can be controlled within + / -0.1 mm through limiting photoelectric adjustment.
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Description

Technical Field

[0001] This utility model relates to the field of inkjet printer technology, specifically a multi-printer moving structure for an inkjet printer. Background Technology

[0002] Inkjet printers are suitable for coding printed materials such as advertisements, trademarks, packaging, pictures, and books. The inkjet printer head is one of the main components of an inkjet printer. Accurate positioning of the inkjet printer is crucial.

[0003] In existing inkjet printers, the movement of the printhead is mostly achieved through a stepper motor driving a gear transmission. However, the precision of printhead movement in existing technologies is not accurately controlled by the stepper motor, and the gear transmission suffers from insufficient motor power due to large gear backlash and the 1:1 gear ratio, which can easily cause jamming and other problems. Therefore, there is an urgent need for an inkjet printer with a multi-printhead moving structure to solve these problems. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a multi-printer moving structure for an inkjet printer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multi-printer moving structure for an inkjet printer includes a frame, the frame having two sets of components, and further includes:

[0007] The slide rails are connected at both ends to the two sets of the aforementioned frames;

[0008] A lateral position adjustment mechanism, one end of which is connected to the frame;

[0009] The nozzle fixing plate is connected to the other end of the horizontal position adjustment mechanism and is slidably connected to the slide rail;

[0010] A nozzle head sleeve is connected to a nozzle fixing plate, and a nozzle is installed on the nozzle head sleeve.

[0011] As a further embodiment of this utility model: the lateral position adjustment mechanism includes:

[0012] The ball screw is connected to two sets of frames at both ends;

[0013] Ball screw nut, threaded connection with the ball screw;

[0014] The nut connecting shaft is connected to the ball screw nut.

[0015] The nut timing pulley is connected to the nut connecting shaft.

[0016] The timing belt has one end abutting against the nut and timing pulley.

[0017] The motor synchronous pulley abuts against the other end of the synchronous belt, and the diameter of the motor synchronous pulley is smaller than the diameter of the nut synchronous pulley.

[0018] The motor mounting plate is rotatably connected to the motor synchronous belt pulley and also connected to the nozzle mounting plate;

[0019] The stepper motor is connected to the motor mounting plate, and its output end is connected to the motor synchronous belt pulley.

[0020] As a further aspect of this utility model, it also includes:

[0021] The limit photoelectric sensor is connected to the nozzle fixing plate and electrically connected to the stepper motor.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. The number of nozzles is unlimited; each frame typically has 2-4 nozzles or more.

[0024] 2. The stepper motor drive uses a small pulley to drive a large pulley, which increases the motor torque and prevents jamming.

[0025] 3. The accuracy can be controlled within ±0.1 mm through limit photoelectric adjustment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a multi-printer moving structure for an inkjet printer according to an embodiment of the present invention.

[0027] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0028] In the diagram: 1. Frame; 2. Slide rail; 3. Ball screw; 4. Ball screw nut; 5. Nut connecting shaft; 6. Nut timing pulley; 7. Timing belt; 8. Motor timing pulley; 9. Stepper motor; 10. Motor mounting plate; 11. Nozzle mounting plate; 12. Limit photoelectric sensor; 13. Nozzle head sleeve. Detailed Implementation

[0029] 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.

[0030] In this embodiment of the utility model, please refer to Figures 1 to 2A multi-printer moving structure for an inkjet printer includes a frame 1, wherein the frame 1 is provided with two sets, and further includes:

[0031] The slide rail 2 is connected at both ends to the two sets of the frame 1 respectively;

[0032] A lateral position adjustment mechanism, one end of which is connected to frame 1;

[0033] The nozzle fixing plate 11 is connected to the other end of the horizontal position adjustment mechanism and is slidably connected to the slide rail 2;

[0034] The nozzle head sleeve 13 is connected to the nozzle fixing plate 11, and the nozzle is installed on the nozzle head sleeve 13.

[0035] The nozzle is installed on the nozzle head sleeve 13. The lateral position adjustment mechanism precisely controls and adjusts the position of the nozzle fixing plate 11 laterally, thereby precisely controlling the lateral position of the nozzle head sleeve 13. The slide rail 2 ensures the stable lateral movement of the nozzle fixing plate 11.

[0036] As one embodiment of this utility model, please refer to Figure 1 and Figure 2 The lateral position adjustment mechanism includes:

[0037] The ball screw 3 is connected to two sets of frames 1 at both ends;

[0038] Ball screw nut 4 is threadedly connected to ball screw 3;

[0039] Nut connecting shaft 5 is connected to ball screw nut 4;

[0040] The nut timing pulley 6 is connected to the nut connecting shaft 5;

[0041] The timing belt 7 has one end abutting against the nut timing belt pulley 6;

[0042] The motor synchronous pulley 8 abuts against the other end of the synchronous belt 7, and the diameter of the motor synchronous pulley 8 is smaller than the diameter of the nut synchronous pulley 6;

[0043] The motor mounting plate 10 is rotatably connected to the motor synchronous belt pulley 8 and is also connected to the nozzle mounting plate 11;

[0044] Stepper motor 9 is connected to motor mounting plate 10, and its output end is connected to motor synchronous pulley 8.

[0045] When the position of the nozzle sleeve 13 needs to be adjusted, the stepper motor 9 operates, driving the motor synchronous pulley 8 to rotate. The motor synchronous pulley 8 drives the synchronous belt 7 to rotate, the synchronous belt 7 drives the nut synchronous pulley 6 to rotate, the nut synchronous pulley 6 drives the nut connecting shaft 5 to rotate, and the nut connecting shaft 5 drives the ball screw nut 4 to rotate on the ball screw 3. The ball screw nut 4 rotates and moves laterally along the ball screw 3, thereby adjusting the position of the nozzle sleeve 13.

[0046] As one embodiment of this utility model, please refer to Figure 1 and Figure 2 It also includes:

[0047] The limit photoelectric sensor 12 is connected to the nozzle fixing plate 11 and electrically connected to the stepper motor 9.

[0048] The position of the nozzle sleeve 13 is precisely controlled by the limit photoelectric sensor 12. When the nozzle reaches the designated position, the limit photoelectric sensor 12 is triggered to work, causing the stepper motor 9 to stop working.

[0049] The working principle of this utility model is as follows: The nozzle is installed on the nozzle head sleeve 13. When the position of the nozzle head sleeve 13 needs to be adjusted, the stepper motor 9 works, driving the motor synchronous pulley 8 to rotate. The motor synchronous pulley 8 drives the synchronous belt 7 to rotate. The synchronous belt 7 drives the nut synchronous pulley 6 to rotate. The nut synchronous pulley 6 drives the nut connecting shaft 5 to rotate. The nut connecting shaft 5 drives the ball screw nut 4 to rotate on the ball screw 3. The ball screw nut 4 rotates and moves laterally along the ball screw 3, thereby adjusting the position of the nozzle head sleeve 13. The limit photoelectric sensor 12 precisely controls the position of the nozzle head sleeve 13. After reaching the designated position, the limit photoelectric sensor 12 is triggered to work, causing the stepper motor 9 to stop working.

[0050] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-printer moving structure for an inkjet printer, comprising a frame, wherein the frame is provided with two sets, characterized in that, Also includes: The slide rails are connected at both ends to the two sets of the aforementioned frames; A lateral position adjustment mechanism, one end of which is connected to the frame; The nozzle fixing plate is connected to the other end of the horizontal position adjustment mechanism and is slidably connected to the slide rail; A nozzle head sleeve is connected to a nozzle fixing plate, and a nozzle is installed on the nozzle head sleeve.

2. The multi-head moving structure for an inkjet printer according to claim 1, characterized in that, The lateral position adjustment mechanism includes: The ball screw is connected to two sets of frames at both ends; Ball screw nut, threaded connection with the ball screw; The nut connecting shaft is connected to the ball screw nut. The nut timing pulley is connected to the nut connecting shaft. The timing belt has one end abutting against the nut and timing pulley. The motor synchronous pulley abuts against the other end of the synchronous belt, and the diameter of the motor synchronous pulley is smaller than the diameter of the nut synchronous pulley. The motor mounting plate is rotatably connected to the motor synchronous belt pulley and also connected to the nozzle mounting plate; The stepper motor is connected to the motor mounting plate, and its output end is connected to the motor synchronous belt pulley.

3. The multi-head moving structure for an inkjet printer according to claim 2, characterized in that, Also includes: The limit photoelectric sensor is connected to the nozzle fixing plate and electrically connected to the stepper motor.