Automatic cleaning mechanism for spray head of ink-jet printer

Abstract

The utility model discloses an ink-jet printer nozzle automatic cleaning mechanism which comprises a mounting block, and a first pipeline used for conveying ink to a nozzle, a second pipeline used for cleaning and drying the nozzle and mounting grooves located on the lower sides of the first pipeline and the second pipeline are longitudinally arranged in the mounting block at intervals. When cleaning is needed, firstly, a brush cleaning mechanism is used for cleaning the lower end of a spray head, then, a third servo motor drives a spray head mounting block to rotate, the upper end of a third pipeline communicates with a second pipeline, a first electromagnetic valve is opened, and a second electromagnetic valve is closed; cleaning liquid sequentially passes through the liquid supply pipeline, the cleaning and drying main pipe, the second pipeline and the third pipeline to enter the spray head to clean the spray head, after cleaning, the first electromagnetic valve is closed, the second electromagnetic valve is opened, and drying air can sequentially pass through the air supply pipeline, the cleaning and drying main pipe, the second pipeline and the third pipeline to enter the spray head to dry the spray head; the scheme is good in use effect and convenient to popularize and use in industry.

Description

Technical Field

[0001] The utility model relates to the technical field of inkjet printer structures, in particular to an automatic cleaning mechanism for a nozzle of an inkjet printer. Background Art

[0002] Inkjet printer refers to a device that prints ink on the surface of a product to achieve a printing effect. After long-term use, the nozzles of the current inkjet printers are easily clogged by dried ink. Therefore, the nozzles need to be cleaned regularly to ensure smooth coding.

[0003] In traditional technology, the cleaning of the nozzle is done manually, which requires the nozzle to be disassembled, which is time-consuming and laborious. To address this problem, the industry has developed equipment for nozzle cleaning that can improve the cleaning efficiency.

[0004] With the development and progress of technology, the industry continues to improve the cleaning mechanism of the nozzle to meet the needs of users. Utility Model Content

[0005] The utility model aims to provide an automatic cleaning mechanism for the nozzle of an inkjet printer to meet the use requirements of users.

[0006] In order to achieve the purpose of the utility model, the technical solution provided by the utility model is as follows:

[0007] An automatic cleaning mechanism for a nozzle of a printer comprises a fixed rod, a mounting block is connected to the fixed rod, a first pipeline for conveying ink to the nozzle and a second pipeline for cleaning and drying the nozzle are arranged in the mounting block, and a mounting groove is arranged at the lower side of the first pipeline and the second pipeline. The nozzle mounting block is rotatably connected in the mounting groove, a third pipeline is arranged in the nozzle mounting block, and the upper end opening of the third pipeline is located at an eccentric position of the upper end surface of the nozzle mounting block. The third pipeline is used in conjunction with the first pipeline and the second pipeline. The lower end opening of the third pipeline is connected to the nozzle, the upper end of the first pipeline is communicated with an ink supply pipeline, the upper end of the second pipeline is communicated with a cleaning and drying main pipeline, and the cleaning and drying main pipeline is communicated with a liquid supply pipeline provided with a first electromagnetic valve and an air supply pipeline provided with a second electromagnetic valve; a first annular gear ring is arranged on the circumferential surface of the lower end side of the nozzle mounting block, a third servo motor is connected to the fixed rod, the output shaft of the third servo motor is connected with a first driving gear, and the first driving gear is drivingly connected with the first annular gear ring; a brush cleaning mechanism for cleaning the nozzle is also arranged at the lower part of the fixed rod.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0009] The cleaning mechanism provided by the present application includes a nozzle cleaning structure and a drying structure and a brush cleaning mechanism. During normal use, the upper end of the third pipe is connected to the first pipe, the third pipe normally supplies ink to the nozzle, and the nozzle normally sprays codes; when cleaning is required, the brush cleaning mechanism is first used to clean the lower end of the nozzle, and then the third servo motor drives the nozzle mounting block to rotate, so that the upper end of the third pipe is connected to the second pipe, the first solenoid valve is opened, and the second solenoid valve is closed, so that the cleaning liquid passes through the liquid supply pipeline, the cleaning and drying main pipe, the second pipe, and the third pipe in turn, and enters the nozzle to clean the nozzle. After cleaning, the first solenoid valve is closed, and the second solenoid valve is opened, so that the drying air can pass through the air supply pipeline, the cleaning and drying main pipe, the second pipe, and the third pipe in turn, and enter the nozzle to dry the nozzle. This solution has good use effect and is easy to promote and use in the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of the structure of the cleaning mechanism provided in Example 1 of the present application;

[0011] In the figure, a fixing rod 1, a mounting block 2, an ink supply pipeline 3, a first solenoid valve 4, a liquid supply pipeline 5, a cleaning and drying main pipeline 6, an air supply pipeline 7, a second solenoid valve 8, a first pipeline 9, a second pipeline 10, a third pipeline 11, a nozzle mounting block 12, a first annular gear ring 13, a nozzle 14, a rotating sleeve 15, a second annular gear ring 16, a first servo motor 17, a second servo motor 18, a mounting plate 19, a screw rod 20, a brush cleaning assembly 21, a guide rod 22, and a third servo motor 23;

[0012] Figure 2 This is a schematic diagram of the structure of the brush cleaning component in Example 1 of the present application;

[0013] In the figure, the side auxiliary block 211, the cleaning box 212, the rotating rod 213, the center hole 214, the rubber sheet 215, and the fourth servo motor 216;

[0014] Figure 3 A schematic diagram of the structure of the cleaning mechanism provided in Example 2 of the present application;

[0015] In the figure, tray 24;

[0016] Figure 4 A schematic diagram of the connection structure between the tray and the rotating sleeve provided in Example 2 of the present application;

[0017] In the figure, there is a hanging ring 25 with a hole and an L-shaped block 26. DETAILED DESCRIPTION

[0018] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set, and can refer to direct connection or indirect connection. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0021] Example 1

[0022] like Figure 1-Figure 2As shown, this embodiment provides an automatic cleaning mechanism for a nozzle of an inkjet printer, comprising a fixing rod 1, a mounting block 2 connected to the fixing rod 1, a first pipe 9 for conveying ink to the nozzle and a second pipe 10 for cleaning and drying the nozzle arranged longitudinally and spaced apart from each other in the mounting block 2, and a mounting groove located below the first pipe 9 and the second pipe 10, a nozzle mounting block 12 rotatably connected in the mounting groove, a third pipe 11 longitudinally penetrating the nozzle mounting block 12, an upper end opening of the third pipe 11 located at an eccentric position on the upper end surface of the nozzle mounting block 12, the third pipe 11 is used in conjunction with the first pipe 9 and the second pipe 10, and the third pipe 1 The lower end opening of 1 is connected to the nozzle 14, the upper end of the first pipe 9 is connected to the ink supply pipeline 3, the upper end of the second pipe 10 is connected to the cleaning and drying main pipe 6, and the cleaning and drying main pipe 6 is connected to the liquid supply pipeline 5 provided with the first solenoid valve 4 and the air supply pipeline 7 provided with the second solenoid valve 8; a first annular gear ring 13 is provided on the circumferential surface of the lower end side of the nozzle mounting block 12, a third servo motor 23 is connected to the fixed rod 1, the output shaft of the third servo motor 23 is connected to the first driving gear, and the first driving gear is transmission-connected to the first annular gear ring 13; a brush cleaning mechanism for cleaning the nozzle 14 is also provided at the lower part of the fixed rod 1.

[0023] The cleaning mechanism provided by the present application includes a nozzle cleaning structure and a drying structure and a brush cleaning mechanism. During normal use, the upper end of the third pipe is connected to the first pipe, the third pipe normally supplies ink to the nozzle, and the nozzle normally sprays codes; when cleaning is required, the brush cleaning mechanism is first used to clean the lower end of the nozzle, and then the third servo motor drives the nozzle mounting block to rotate, so that the upper end of the third pipe is connected to the second pipe, the first solenoid valve is opened, and the second solenoid valve is closed, so that the cleaning liquid passes through the liquid supply pipeline, the cleaning and drying main pipe, the second pipe, and the third pipe in turn, and enters the nozzle to clean the nozzle. After cleaning, the first solenoid valve is closed, and the second solenoid valve is opened, so that the drying air can pass through the air supply pipeline, the cleaning and drying main pipe, the second pipe, and the third pipe in turn, and enter the nozzle to dry the nozzle. This solution has good use effect and is easy to promote and use in the industry.

[0024] It should be noted that the ink supply pipeline 3 is connected to the ink supply mechanism in the known technology, such as including an ink tank and a pump, a pipeline, etc., the liquid supply pipeline 5 is connected to the liquid supply mechanism in the known technology, such as including a cleaning liquid tank and a pump, a pipeline, etc., and the cleaning and drying main pipeline 6 is connected to the hot air mechanism in the known technology, such as including a fan, a heating device, a pipeline, etc., which will not be described in detail here.

[0025] In addition, the present embodiment provides a specific structure of a brush cleaning mechanism, which includes a rotating sleeve 15, a second annular gear ring 16, a first servo motor 17 and a second servo motor 18, a mounting plate 19, a screw rod 20, a brush cleaning assembly 21, and a guide rod 22;

[0026] The rotating sleeve 15 is rotatably connected to the fixed rod 1, and a second annular gear ring 16 is provided at its lower end. The first servo motor 17 is mounted on the fixed rod 1, and a second driving gear is provided on its output shaft. The second driving gear is transmission-connected with the second annular gear ring 16, and can drive the second annular gear ring to rotate, thereby driving the rotating sleeve to rotate, so that the brush cleaning assembly can be transferred to the bottom of the nozzle; the outer circumferential wall of the rotating sleeve 15 is provided with the mounting plate 19, and the second servo motor 18 is provided on the mounting plate 19. The output shaft of the second servo motor 18 is connected with a screw rod 20, and the mounting plate 19 is also provided with a guide rod 22 arranged parallel to the screw rod 20, and the screw rod 20 and the guide rod 22 respectively pass through the brush cleaning assembly 21 and are threadedly connected and slidably connected respectively. The brush cleaning assembly can be raised by the rotation of the second servo motor, and the nozzle can extend into the brush cleaning assembly for cleaning.

[0027] The brush cleaning assembly 21 includes a side auxiliary block 211, a cleaning box 212, a rotating rod 213 and a fourth servo motor 216. The cleaning box 212 has an opening at the upper end, and the side auxiliary blocks 211 are respectively arranged on both sides thereof, and are threadedly connected to the screw rod 20 and slidably connected to the guide rod 22. A rotating rod 213 capable of rotation is transversely arranged on two corresponding side walls in the cleaning box 212, and bristles are arranged on the surface of the rotating rod 213. One end of the rotating rod 213 passes through the side wall of the cleaning box 212 and is connected to the output shaft of the fourth servo motor 216 arranged on the outer wall of the cleaning box 212, and the rotating rod 213 is driven to rotate by the fourth servo motor 216. After the nozzle is inserted into the cleaning box, the rotating rod of the fourth servo motor rotates, which can drive the brush to rotate, so that the brush repeatedly cleans the ink condensed on the outer side and inner side of the nozzle.

[0028] In order to ensure that the environment is kept clean and dust is effectively avoided when the brush is cleaning, a rubber sheet 215 with a center hole 214 is provided at the upper opening of the cleaning box 212, and the nozzle is inserted into the cleaning box through the center hole, and dust can be effectively avoided through the rubber sheet.

[0029] It should be noted that the lower end of the fixing rod can be installed on the work surface, or can be installed according to actual needs and known technologies, which will not be described in detail here.

[0030] It should be noted that the rotating sleeve 15 can be connected to the fixed rod 1 through a bearing, or other structural connection in the prior art, so that it can rotate.

[0031] Example 2

[0032] like Figure 3-Figure 4As shown, in order to ensure the cleanliness of the working equipment when cleaning the nozzle, a tray 24 is also provided on the side wall of the rotating sleeve 15, and the tray is connected to the rotating sleeve 15 through a detachable structure. When cleaning, the cleaning liquid after cleaning can be collected through the tray 24.

[0033] It should be noted that the angle between the tray and the brush cleaning assembly 21 is designed to be less than or equal to 45 degrees. This structure can prevent the tray and the brush cleaning assembly from affecting the normal use of the nozzle.

[0034] This embodiment also provides a detachable structure including a hanging ring 25 with holes arranged on the outer edge of the tray 24 and an L-shaped block 26 arranged on the outer circumference of the rotating sleeve 15, and the longitudinal portion of the L-shaped block 26 is inserted into the hanging ring 25 with holes for detachable connection between the two.

[0035] It should be noted that the structures not described in detail in the present application are all based on known technologies.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate and explain the present invention, and are not intended to limit the present invention to the scope of the described embodiments. In addition, those skilled in the art can understand that the present invention is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of protection claimed by the present invention.

Claims

1. An automatic cleaning mechanism for inkjet printer nozzles, It is characterized in that The invention comprises a fixing rod (1), the fixing rod (1) being connected to a mounting block (2), the mounting block (2) being provided with a first pipe (9) for conveying ink to a nozzle and a second pipe (10) for cleaning and drying the nozzle, which are arranged longitudinally at intervals, and a mounting groove located below the first pipe (9) and the second pipe (10), the mounting groove being rotatably connected to a nozzle mounting block (12), the nozzle mounting block (12) being longitudinally penetrated by a third pipe (11), the upper end opening of the third pipe (11) being located at an eccentric position of the upper end surface of the nozzle mounting block (12), the third pipe (11) being used in conjunction with the first pipe (9) and the second pipe (10), the lower end opening of the third pipe (11) being connected to a nozzle (14) The upper end of the first pipe (9) is connected to the ink supply pipe (3), the upper end of the second pipe (10) is connected to the cleaning and drying pipe (6), and the cleaning and drying pipe (6) is connected to the liquid supply pipe (5) provided with a first electromagnetic valve (4) and the air supply pipe (7) provided with a second electromagnetic valve (8); a first annular gear ring (13) is provided on the circumferential surface of the lower end side of the nozzle mounting block (12), a third servo motor (23) is connected to the fixed rod (1), the output shaft of the third servo motor (23) is connected to a first driving gear, and the first driving gear is transmission-connected to the first annular gear ring (13); the lower part of the fixed rod (1) is also provided with a brush cleaning mechanism for cleaning the nozzle (14).

2. The automatic cleaning mechanism for the inkjet printer nozzle according to claim 1, It is characterized in that The brush cleaning mechanism comprises a rotating sleeve (15), a second annular gear ring (16), a first servo motor (17) and a second servo motor (18), a mounting plate (19), a screw rod (20), a brush cleaning assembly (21), and a guide rod (22); The rotating sleeve (15) is rotatably connected to the fixed rod (1), and a second annular gear ring (16) is arranged at the lower end of the rotating sleeve (15). The first servo motor (17) is mounted on the fixed rod (1), and a second driving gear is arranged on the output shaft of the first servo motor (17). The second driving gear is transmission-connected to the second annular gear ring (16). The mounting plate (19) is arranged on the outer circumferential wall of the rotating sleeve (15), and a second servo motor (18) is arranged on the mounting plate (19). The output shaft of the second servo motor (18) is connected to a screw rod (20). The mounting plate (19) is also provided with a guide rod (22) arranged parallel to the screw rod (20). The screw rod (20) and the guide rod (22) respectively pass through the brush cleaning assembly (21) and are respectively threadedly connected and slidably connected.

3. The automatic cleaning mechanism for the inkjet printer nozzle according to claim 2, It is characterized in that The brush cleaning assembly (21) comprises a side auxiliary block (211), a cleaning box (212), a rotating rod (213) and a fourth servo motor (216); the cleaning box (212) is open at the upper end, and the side auxiliary blocks (211) are respectively arranged on both sides thereof, and are threadedly connected to the screw rod (20) and slidably connected to the guide rod (22); a rotatable rotating rod (213) is transversely arranged on two corresponding side walls in the cleaning box (212); bristles are arranged on the surface of the rotating rod (213); one end of the rotating rod (213) passes through the side wall of the cleaning box (212) and is connected to the output shaft of the fourth servo motor (216) arranged on the outer wall of the cleaning box (212); and the rotating rod (213) is driven to rotate by the fourth servo motor (216).

4. The automatic cleaning mechanism for the inkjet printer nozzle according to claim 3, It is characterized in that A rubber sheet (215) with a central hole (214) is provided at the upper opening of the cleaning box (212).

5. The automatic cleaning mechanism for the inkjet printer nozzle according to claim 4, It is characterized in that A tray (24) is also provided on the side wall of the rotating sleeve (15), and the tray is connected to the rotating sleeve (15) via a detachable structure.

6. The automatic cleaning mechanism for the inkjet printer nozzle according to claim 5, It is characterized in that The detachable structure comprises a hanging ring (25) with holes arranged on the outer edge of the tray (24) and an L-shaped block (26) arranged on the outer circumference of the rotating sleeve (15), and the longitudinal part of the L-shaped block (26) is inserted into the hanging ring (25) with holes for connecting the two.

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