Automatic cleaning mechanism for spray head of printer

Abstract

The utility model relates to the technical field of printers, in particular to an automatic cleaning mechanism for a nozzle of a printer, which comprises a longitudinal moving component, a vertical moving component arranged on the outer side of the longitudinal moving component, a transverse moving component arranged on the vertical moving component, a three-dimensional printer head arranged on the transverse moving component, and a frame-shaped base, a moving block is in threaded connection with the interior of the frame-shaped base through a lead screw, an I-shaped plate is arranged at the top of the moving block, a working plate is supported by the I-shaped plate through four supporting rods, and an automatic cleaning assembly is arranged at the top of the frame-shaped base. According to the automatic cleaning mechanism for the spray head of the printer, when the three-dimensional printer head needs to be cleaned, a worker disassembles the working plate, then drives the three-dimensional printer head to move to the position over the cleaning box through the transverse moving assembly, and drives the three-dimensional printer head to move downwards through the vertical moving assembly till the three-dimensional printer head enters the cleaning box; and then the cleaning box is started to clean the three-dimensional printer head.

Description

Technical Field

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

[0002] 3D printers are a rapid prototyping process that uses layer-by-layer stacking to create 3D models. The operation process is similar to that of traditional printers, except that traditional printers print ink on paper to form a two-dimensional plan, while 3D printers stack liquid photosensitive resin materials, molten plastic filaments, gypsum powder and other materials layer by layer through spraying adhesives or extrusion to form a 3D entity. After use, the nozzle of a 3D printer will have some raw materials remaining. After long-term use, the nozzle will be clogged, affecting the printing effect. Therefore, it needs to be cleaned regularly.

[0003] The patent with publication number CN217597844U discloses an automatic cleaning device for a nozzle of a 3D printer, including a bottom plate, two vertical support frames are arranged on the top of the bottom plate, a 3D printer head is arranged between the two vertical support frames, a cleaning box is arranged at the bottom of the 3D printer head and located at the top of the bottom plate; a vertical moving mechanism for vertically moving the cleaning box is arranged inside one of the vertical support frames, and the vertical moving mechanism includes a first drive motor, and the first drive motor is installed inside the vertical support frame. The utility model enables the longitudinal rectangular slider to be raised and lowered inside the vertical support frame through the arrangement of the vertical moving mechanism, and enables the cleaning box to be moved to the bottom of the nozzle through the arrangement of the longitudinal moving mechanism, and enables the nozzle to enter the interior of the cleaning box, so that the nozzle can be cleaned.

[0004] In the specific use of the above-mentioned prior art, the vertical moving mechanism is set so that the longitudinal rectangular slider can be raised and lowered inside the vertical support frame. The longitudinal moving mechanism is set so that the cleaning box can be moved to the bottom of the nozzle, and the nozzle can enter the interior of the cleaning box so that the nozzle can be cleaned. However, since one end of the transverse light rod and one end of the transverse threaded rod are fixedly connected to the cleaning box, the cleaning box cannot be disassembled after cleaning the nozzle, and the dirty water in the cleaning box is not easy to pour out, which is inconvenient to use. In view of this, we propose an automatic cleaning mechanism for the nozzle of a printer. Utility Model Content

[0005] The utility model aims to provide an automatic cleaning mechanism for a nozzle of a printer to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A nozzle automatic cleaning mechanism of a printer comprises a longitudinal moving component, a vertical moving component is arranged outside the longitudinal moving component, a horizontal moving component is arranged on the vertical moving component, a 3D printer head is arranged on the horizontal moving component, the longitudinal moving component is used to drive a working plate to move forward and backward, the vertical moving component is used to drive the horizontal moving component to move up and down, so that the 3D printer head moves up and down, and the horizontal moving component is used to drive the 3D printer head to move left and right, so that the 3D printer head cooperates with the working plate to realize 3D printing, the vertical moving component and the horizontal moving component both adopt the driving structure in the existing 3D printer, which is the existing technology and will not be described in detail here;

[0008] The longitudinal moving assembly comprises a frame-shaped base, a screw rod is rotatably connected to a position between the front and rear sides of the inner wall of the frame-shaped base and located in the middle, a moving block is threadedly connected to the outer wall of the screw rod, an I-shaped plate is arranged on the top of the moving block, support rods are arranged on the left and right sides of the top of the I-shaped plate and near the front and rear ends, and the four support rods jointly support a working plate, the moving block is driven forward or backward by the screw rod, so that the moving block drives the I-shaped plate to move, the I-shaped plate drives the working plate to move synchronously through the four support rods, and the working plate can be disassembled;

[0009] An automatic cleaning component is provided on the top of the frame-shaped base, and the automatic cleaning component is located between the I-shaped plate and the work plate. When the I-shaped plate and the work plate move forward and backward, the automatic cleaning component will not affect the movement of the I-shaped plate and the work plate. The automatic cleaning component includes a U-shaped plate fixedly connected to the top of the frame-shaped base, and the top of the U-shaped plate is detachably connected to a cleaning box, which is an ultrasonic cleaning machine. The ultrasonic cleaning machine is a mature prior art and will not be described in detail in this embodiment. A positioning piece for locating the position of the cleaning box is provided at the bottom of the front side of the cleaning box. The position of the cleaning box is positioned by the positioning piece to avoid displacement of the cleaning box during use, and the cleaning box can be disassembled to facilitate the staff to clean the cleaning box and replace the water in the cleaning box.

[0010] Preferably, a motor is provided on the rear side of the frame-shaped base, and the output shaft of the motor passes through the rear side of the frame-shaped base and is coaxially connected to the rear end of the screw rod through a coupling. The motor is operated by an external power supply and drives the screw rod to rotate.

[0011] Preferably, two symmetrically arranged positioning rods are provided between the front and rear sides of the inner wall of the frame-shaped base, and two symmetrically arranged sliding blocks are provided at the bottom of the I-shaped plate. The two sliding blocks are respectively slidably connected to the outer sides of the two positioning rods, so that the I-shaped plate can move stably forward and backward.

[0012] Preferably, an annular limit block is provided on the outer wall of the support rod near the top, and circular holes for the support rod to pass through are provided at the bottom of the working plate near the four corners. The bottom of the working plate abuts against the top of the annular limit block, so that the working plate is suspended in position.

[0013] Preferably, a slide groove is horizontally opened backwards at the top of the front side of the U-shaped plate, and the bottom of the cleaning box is located in the slide groove. The positioning piece can prevent the cleaning box from moving forward, backward, left and right, and the cleaning box is located in the middle of the top of the U-shaped plate, and the 3D printer head is located directly above the cleaning box, which is conducive to the 3D printer head entering the cleaning box. When the 3D printer head needs to be cleaned, the 3D printer head is driven to move directly above the cleaning box by the horizontal moving component, and the vertical moving component drives the 3D printer head to move downward until the 3D printer head enters the cleaning box, and then the cleaning box is started to clean the 3D printer head.

[0014] Preferably, a baffle is provided at the top of the U-shaped plate and at the rear end of the slide, a handle is provided on the rear side of the cleaning box, and an escape opening for the handle to pass through is opened on the front side of the baffle, and the upper and lower sides of the handle are respectively fitted with the upper and lower sides of the inner wall of the escape opening, so that the relative positions of the handle and the baffle are fixed, and the slide and the positioning piece can fix the position of the cleaning box, and the handle can facilitate the staff to move the cleaning box.

[0015] Preferably, the positioning member includes a fixed horizontal plate fixedly connected to the bottom of the front side of the cleaning box, a hollow vertical rod is provided on the top of the fixed horizontal plate, an insertion rod is movably connected inside the hollow vertical rod, the top end of the insertion rod passes through the top of the inner wall of the hollow vertical rod and is fixedly connected to a pull block, so that the staff can pull the insertion rod upward, and the bottom end of the insertion rod passes through the top of the fixed horizontal plate to the outside, and a positioning hole is provided at the bottom of the inner wall of the slide groove for the bottom end of the insertion rod to be inserted, so that the position of the bottom end of the insertion rod is fixed.

[0016] Preferably, an annular push block is provided at the middle and lower part of the outer wall of the insertion rod, the outer wall of the annular push block fits with the inner wall of the hollow vertical rod, and the outer wall of the insertion rod is sleeved with a spring, the bottom end of the spring abuts against the top of the annular push block, and the top end of the spring abuts against the top of the inner wall of the hollow vertical rod, so that the bottom end of the insertion rod is stably inserted into the positioning hole. When the staff needs to clean the cleaning box, the staff holds the hollow vertical rod with his right hand and pushes the pull block upward with his thumb. The pull block drives the insertion rod to move upward, the spring is compressed, and the bottom end of the insertion rod is moved out of the positioning hole, and then the hollow vertical rod is pulled forward to drive the cleaning box to move forward, so that the handle moves out of the avoidance opening until the cleaning box moves out of the slide slot. Then the staff holds the handle with his left hand and the hollow vertical rod with his right hand, which can drive the cleaning box to move, making it convenient for the staff to replace the water in the cleaning box and clean the cleaning box.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The automatic cleaning mechanism of the printer's nozzle, the 3D printer head is located just above the cleaning box. When the 3D printer head needs to be cleaned, the staff will disassemble the working plate, and then use the horizontal moving component to drive the 3D printer head to move just above the cleaning box, and the vertical moving component will drive the 3D printer head downward until the 3D printer head enters the cleaning box, and then start the cleaning box to clean the 3D printer head.

[0019] 2. The automatic nozzle cleaning mechanism of the printer has upper and lower sides of the handle respectively fitted with the upper and lower sides of the inner wall of the avoidance opening, so that the relative position of the handle and the baffle is fixed, and the position of the cleaning box can be fixed by cooperating with the slide groove and the positioning piece, and the handle can facilitate the staff to move the cleaning box.

[0020] 3. The automatic cleaning mechanism of the printer's nozzle. When the staff needs to clean the cleaning box, the staff holds the hollow vertical rod with his right hand and pushes the pull block upward with his thumb. The pull block drives the insertion rod to move upward, and the spring is compressed, so that the bottom end of the insertion rod moves out of the positioning hole, and then the hollow vertical rod is pulled forward to drive the cleaning box forward, so that the handle moves out of the avoidance opening until the cleaning box moves out of the slide slot. Then the staff holds the handle with his left hand and the hollow vertical rod with his right hand to drive the cleaning box to move, which is convenient for the staff to replace the water in the cleaning box and clean the cleaning box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall first-view structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0023] Figure 3 It is a partial structural schematic diagram of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the automatic cleaning component in the utility model;

[0025] Figure 5 It is a schematic diagram of the positioning member structure in the utility model.

[0026] In the figure: 1. longitudinal moving component; 10. frame base; 11. screw rod; 12. motor; 13. moving block; 14. I-shaped plate; 140. slider; 141. support rod; 1410. annular limit block; 15. working plate; 150. circular hole; 16. positioning rod; 2. automatic cleaning component; 20. U-shaped plate; 200. slide groove; 201. positioning hole; 21. baffle; 210. avoidance; 22. cleaning box; 220. handle; 23. positioning piece; 230. fixed horizontal plate; 231. hollow vertical rod; 232. plug rod; 2320. annular push block; 2321. pull block; 233. spring; 3. vertical moving component; 4. horizontal moving component; 5. 3D printer head. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] 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.

[0029] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0030] A nozzle automatic cleaning mechanism of a printer includes a longitudinal moving component 1, a vertical moving component 3 is arranged outside the longitudinal moving component 1, a horizontal moving component 4 is arranged on the vertical moving component 3, a three-dimensional printer head 5 is arranged on the horizontal moving component 4, the longitudinal moving component 1 is used to drive a working plate 15 to move forward and backward, the vertical moving component 3 is used to drive the horizontal moving component 4 to move up and down, so that the three-dimensional printer head 5 moves up and down, and the horizontal moving component 4 is used to drive the three-dimensional printer head 5 to move left and right, so that the three-dimensional printer head 5 cooperates with the working plate 15 to realize three-dimensional printing, the vertical moving component 3 and the horizontal moving component 4 both adopt the driving structure in the existing three-dimensional printer, which is the existing technology and will not be described in detail here;

[0031] The longitudinal moving assembly 1 comprises a frame-shaped base 10, a screw rod 11 is rotatably connected between the front and rear sides of the inner wall of the frame-shaped base 10 and at a position in the middle, a moving block 13 is threadedly connected to the outer wall of the screw rod 11, a work plate 14 is arranged on the top of the moving block 13, support rods 141 are arranged on the left and right sides of the top of the work plate 14 and near the front and rear ends, and the four support rods 141 jointly support a working plate 15, the moving block 13 is driven forward or backward by the screw rod 11, so that the moving block 13 drives the work plate 14 to move, and the work plate 15 is driven to move synchronously by the four support rods 141, and the working plate 15 can be disassembled;

[0032] An automatic cleaning component 2 is provided on the top of the frame-shaped base 10, and the automatic cleaning component 2 is located between the I-shaped plate 14 and the working plate 15. When the I-shaped plate 14 and the working plate 15 move forward and backward, the automatic cleaning component 2 will not affect the movement of the I-shaped plate 14 and the working plate 15. The automatic cleaning component 2 includes a U-shaped plate 20 fixedly connected to the top of the frame-shaped base 10, and the top of the U-shaped plate 20 is detachably connected to a cleaning box 22. The cleaning box 22 is an ultrasonic cleaning machine. The ultrasonic cleaning machine is a mature prior art and will not be described in detail in this embodiment. A positioning member 23 for positioning the position of the cleaning box 22 is provided at the bottom of the front side of the cleaning box 22. The position of the cleaning box 22 is positioned by the positioning member 23 to avoid displacement of the cleaning box 22 during use, and the cleaning box 22 can be disassembled to facilitate the staff to clean the cleaning box 22 and replace the water in the cleaning box 22.

[0033] In this embodiment, a motor 12 is provided on the rear side of the frame base 10. The output shaft of the motor 12 passes through the rear side of the frame base 10 and is coaxially connected to the rear end of the screw rod 11 through a coupling. The motor 12 is powered by an external power supply and drives the screw rod 11 to rotate.

[0034] Specifically, two symmetrically arranged positioning rods 16 are provided between the front and rear sides of the inner wall of the frame-shaped base 10, and two symmetrically arranged sliders 140 are provided at the bottom of the I-shaped plate 14. The two sliders 140 are respectively slidably connected to the outer sides of the two positioning rods 16, so that the I-shaped plate 14 can move stably forward and backward.

[0035] Furthermore, an annular limit block 1410 is provided on the outer wall of the support rod 141 near the top, and circular holes 150 for the support rod 141 to pass through are provided at the bottom of the working plate 15 near the four corners. The bottom of the working plate 15 abuts against the top of the annular limit block 1410, so that the working plate 15 is suspended in position.

[0036] Furthermore, a slide groove 200 is horizontally opened at the top of the front side of the U-shaped plate 20, and the bottom of the cleaning box 22 is located in the slide groove 200. The positioning piece 23 can prevent the cleaning box 22 from moving forward, backward, left and right. The cleaning box 22 is located in the middle of the top of the U-shaped plate 20, and the 3D printer head 5 is located directly above the cleaning box 22, which is conducive to the 3D printer head 5 entering the cleaning box 22. When the 3D printer head 5 needs to be cleaned, the 3D printer head 5 is driven to move directly above the cleaning box 22 by the horizontal moving component 4, and the vertical moving component 3 drives the 3D printer head 5 to move downward until the 3D printer head 5 enters the cleaning box 22, and then the cleaning box 22 is started to clean the 3D printer head 5.

[0037] Furthermore, a baffle 21 is provided at the top of the U-shaped plate 20 and at the rear end of the slide 200, a handle 220 is provided on the rear side of the cleaning box 22, and an escape opening 210 is opened on the front side of the baffle 21 for the handle 220 to pass through, and the upper and lower sides of the handle 220 are respectively fitted with the upper and lower sides of the inner wall of the escape opening 210, so that the relative positions of the handle 220 and the baffle 21 are fixed, and the slide 200 and the positioning member 23 can fix the position of the cleaning box 22, and the handle 220 can facilitate the staff to move the cleaning box 22.

[0038] Furthermore, the positioning member 23 includes a fixed horizontal plate 230 fixedly connected to the bottom of the front side of the cleaning box 22, and a hollow vertical rod 231 is provided on the top of the fixed horizontal plate 230, and an insertion rod 232 is movably connected inside the hollow vertical rod 231. The top of the insertion rod 232 passes through the top of the inner wall of the hollow vertical rod 231 and is fixedly connected with a pull block 2321, which is convenient for the staff to pull the insertion rod 232 upwards, and the bottom end of the insertion rod 232 passes through the top of the fixed horizontal plate 230 to the outside, and a positioning hole 201 is provided at the bottom of the inner wall of the slide groove 200 for the bottom end of the insertion rod 232 to be inserted, so that the position of the bottom end of the insertion rod 232 is fixed.

[0039] Furthermore, an annular push block 2320 is provided at the middle and lower part of the outer wall of the insertion rod 232, and the outer wall of the annular push block 2320 fits with the inner wall of the hollow vertical rod 231. A spring 233 is sleeved on the outer wall of the insertion rod 232, and the bottom end of the spring 233 abuts against the top of the annular push block 2320, and the top end of the spring 233 abuts against the top of the inner wall of the hollow vertical rod 231, so that the bottom end of the insertion rod 232 is stably inserted into the positioning hole 201. When the staff needs to clean the cleaning box 22, the staff holds the hollow vertical rod 231 with his right hand and pushes the pull rod upward with his thumb The cleaning box 22 is then moved out of the chute 200 by the staff holding the handle 220 with the left hand and the hollow vertical rod 231 with the right hand. Then, the staff can drive the cleaning box 22 to move, making it convenient for the staff to replace the water in the cleaning box 22 and clean the cleaning box 22.

[0040] When the automatic nozzle cleaning mechanism of the printer of the present embodiment is in use, when it is necessary to clean the 3D printer head 5, the staff moves the working plate 15 upwards to separate the working plate 15 from the four support rods 141 to prevent the working plate 15 from hindering the 3D printer head 5 from moving downwards, and then drives the 3D printer head 5 to move to the top of the cleaning box 22 through the lateral moving component 4, and drives the 3D printer head 5 to move downwards through the vertical moving component 3 until the 3D printer head 5 enters the cleaning box 22, and then starts the cleaning box 22 to automatically clean the 3D printer head 5. After the 3D printer head 5 is cleaned, the vertical moving component 3 drives the 3D printer head 5 to move upwards, and then the staff installs the working plate 15 on the four support rods 141. After the 3D printer head 5 is dry, the next 3D printing operation can be carried out; when the staff needs to clean the cleaning box 22, the staff holds the hollow vertical rod 231 with his right hand and pushes the pull block 2321 upward with his thumb, and the pull block 2321 drives the insertion rod 232 to move upward, and the spring 233 is compressed, so that the bottom end of the insertion rod 232 moves out of the positioning hole 201, and then pulls the hollow vertical rod 231 forward to drive the cleaning box 22 to move forward, so that the handle 220 moves out of the avoidance opening 210 until the cleaning box 22 moves out of the slide 200, and then the staff holds the handle 220 with his left hand and the hollow vertical rod 231 with his right hand to drive the cleaning box 22 to move, which is convenient for the staff to replace the water in the cleaning box 22 and clean the cleaning box 22.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An automatic cleaning mechanism for a nozzle of a printer, comprising a longitudinal moving component (1), a vertical moving component (3) being arranged outside the longitudinal moving component (1), a horizontal moving component (4) being arranged on the vertical moving component (3), and a three-dimensional printer head (5) being arranged on the horizontal moving component (4), characterized in that: The longitudinal moving assembly (1) comprises a frame-shaped base (10), a screw rod (11) is rotatably connected to a position between the front and rear sides and in the middle of the inner wall of the frame-shaped base (10), a moving block (13) is threadedly connected to the outer wall of the screw rod (11), an I-shaped plate (14) is provided on the top of the moving block (13), support rods (141) are provided on the left and right sides of the top of the I-shaped plate (14) and near the front and rear ends, four support rods (141) jointly support a working plate (15), an automatic cleaning assembly (2) is provided on the top of the frame-shaped base (10), the automatic cleaning assembly (2) is located between the I-shaped plate (14) and the working plate (15), the automatic cleaning assembly (2) comprises a U-shaped plate (20) fixedly connected to the top of the frame-shaped base (10), a cleaning box (22) is detachably connected to the top of the U-shaped plate (20), and a positioning member (23) for positioning the cleaning box (22) is provided at the bottom of the front side of the cleaning box (22).

2. The automatic nozzle cleaning mechanism of the printer according to claim 1, characterized in that: A motor (12) is provided on the rear side of the frame-shaped base (10); an output shaft of the motor (12) passes through the rear side of the frame-shaped base (10) and is coaxially connected to the rear end of the screw rod (11) via a coupling.

3. The automatic nozzle cleaning mechanism of the printer according to claim 1, characterized in that: Two symmetrically arranged positioning rods (16) are provided between the front and rear sides of the inner wall of the frame-shaped base (10), and two symmetrically arranged sliding blocks (140) are provided at the bottom of the I-shaped plate (14), and the two sliding blocks (140) are respectively slidably connected to the outer sides of the two positioning rods (16).

4. The automatic nozzle cleaning mechanism of the printer according to claim 1, characterized in that: An annular limiting block (1410) is provided on the outer wall of the support rod (141) near the top, and circular holes (150) for the support rod (141) to pass through are provided at the bottom of the working plate (15) near the four corners, and the bottom of the working plate (15) abuts against the top of the annular limiting block (1410).

5. The automatic nozzle cleaning mechanism of a printer according to claim 1, characterized in that: A slide groove (200) is horizontally opened backwards at the top of the front side of the U-shaped plate (20), the bottom of the cleaning box (22) is located in the slide groove (200), and the cleaning box (22) is located in the middle of the top of the U-shaped plate (20).

6. The automatic nozzle cleaning mechanism of the printer according to claim 5, characterized in that: A baffle (21) is provided at the top of the U-shaped plate (20) and at a position at the rear end of the slide groove (200); a handle (220) is provided at the rear side of the cleaning box (22); a clearance opening (210) for the handle (220) to pass through is provided at the front side of the baffle (21); and upper and lower sides of the handle (220) are respectively fitted with upper and lower sides of the inner wall of the clearance opening (210).

7. The automatic nozzle cleaning mechanism of a printer according to claim 5, characterized in that: The positioning member (23) comprises a fixed horizontal plate (230) fixedly connected to the bottom of the front side of the cleaning box (22); a hollow vertical rod (231) is provided at the top of the fixed horizontal plate (230); an insertion rod (232) is movably connected inside the hollow vertical rod (231); the top end of the insertion rod (232) passes through the top of the inner wall of the hollow vertical rod (231) and is fixedly connected to a pull block (2321); the bottom end of the insertion rod (232) passes through the top of the fixed horizontal plate (230) to the outside; and a positioning hole (201) for inserting the bottom end of the insertion rod (232) is provided at the bottom of the inner wall of the slide groove (200).

8. The automatic nozzle cleaning mechanism of a printer according to claim 7, characterized in that: An annular push block (2320) is provided at the middle and lower part of the outer wall of the insertion rod (232), the outer wall of the annular push block (2320) is in contact with the inner wall of the hollow vertical rod (231), and a spring (233) is sleeved on the outer wall of the insertion rod (232), the bottom end of the spring (233) is against the top of the annular push block (2320), and the top end of the spring (233) is against the top of the inner wall of the hollow vertical rod (231).

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