A printhead assembly for an inkjet printer

Abstract

The utility model belongs to the technical field of nozzle device, concretely relates to a nozzle device of inkjet printing machine, including the shunt pipe, be provided with connecting mechanism on the shunt pipe, the outside fixed connection of shunt pipe has the fixed sleeve, the inside fixed connection of fixed sleeve has the connecting pipe, the inside fixed connection of connecting pipe has the spray pipe, be provided with adjusting mechanism on the spray pipe, the upper end fixed connection of shunt pipe has the support. The utility model drives screw rod rotation and draw plate to do screw thread movement through motor, further makes draw plate drive platen to remove, further makes the distance between plug and spray pipe control is convenient, further makes the clearance between plug and spray pipe control is convenient, the ink ejection speed of spray pipe control is convenient.

Description

Technical Field

[0001] This utility model relates to the field of printhead device technology, specifically to a printhead device for an inkjet printer. Background Technology

[0002] Utility model patent CN215792632U discloses a printhead device for an inkjet printer, including a top plate. A first lead screw and a second lead screw are located at the bottom of the top plate. A fixing plate is located on one side of the bottom of the top plate, and a motor is mounted on the bottom of the fixing plate. A first gear is located on one side of the motor, and a second gear is located at the bottom of the first gear. Rollers are located on the outer walls of both the first and second lead screws, and a V-belt is located between the two rollers. Movable seats are located at the bottom of the outer walls of both the first and second lead screws. The device includes a housing and a cover. A sponge block is located in the center of the top of the cover. The water storage box and the sponge block are connected by an absorbent rod. The housing and cover provide a sealed protection for the printhead, and the sponge block provides excellent moisture retention for the nozzle, preventing residual ink from curing and clogging it. However, this device has some shortcomings in use: the ink output speed is not easily adjustable, resulting in poor applicability. Furthermore, there are installation errors when connecting the device to the pipeline, leading to inconvenient installation and loose connections. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to provide a printhead device for an inkjet printer, which solves the problems of inconvenient adjustment and control of ink output speed, poor applicability, and installation errors when the device is installed and connected to the pipeline, resulting in inconvenient installation and loose connections.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a printhead device for an inkjet printer, comprising a split tube, a connecting mechanism provided on the split tube, a fixing sleeve fixedly connected to the outer side of the split tube, a connecting pipe fixedly connected inside the fixing sleeve, a nozzle fixedly connected inside the connecting pipe, an adjusting mechanism provided on the nozzle, and a support fixedly connected to the upper end of the split tube.

[0005] Preferably, the connecting mechanism includes a slide tube, which is slidably connected to the outer side of the diversion tube. A guide pin is fixedly connected to the upper end of the diversion tube, and the guide pin and the slide tube are slidably connected. A screw cap is movably connected to the outer side of the slide tube, and a sealing gasket is adhered to the end of the slide tube. By sliding the slide tube on the outer side of the diversion tube and by rotating the screw cap and the inlet tube to make threaded movement, the entire device is easy to install and fix, and pipeline connection installation errors are easy to eliminate.

[0006] Preferably, a sealing ring is fixedly connected to the outer side of the diverter pipe, and the sealing ring is slidably connected to the slide pipe. The sealing ring provides a seal between the diverter pipe and the slide pipe.

[0007] Preferably, the adjusting mechanism includes a plug, which is slidably connected inside the nozzle. A slide rod is fixedly connected to the surface of the plug. A support plate is fixedly connected inside the connecting pipe. A guide rod is fixedly connected to the lower end of the support plate. The guide rod and the plug are slidably connected. A compression spring is provided on the outer side of the guide rod. A pressure plate is slidably connected to the outer side of the connecting pipe. The pressure plate contacts the slide rod. A pull plate is fixedly connected to the upper end of the pressure plate. A motor is fixedly installed on the upper end of the support. The motor drives the screw to rotate and the pull plate to make threaded movements, thereby causing the pull plate to drive the pressure plate to move. This makes it easier to control the distance between the plug and the nozzle, and thus easier to control the ink output speed of the nozzle.

[0008] Preferably, a retaining sleeve is fixedly connected to the outer side of the slide rod, and the retaining sleeve is slidably connected to the connecting pipe. By setting the retaining sleeve, the sliding groove on the connecting pipe is closed.

[0009] Preferably, one end of the compression spring is fixedly connected to the support plate, and the other end of the compression spring is fixedly connected to the plug. By providing the compression spring, the plug can be easily reset.

[0010] Preferably, a screw is fixedly connected to the upper end of the motor shaft, and the screw and the pull plate are connected by a thread. The movement of the pull plate is controlled by setting the screw.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model makes the device easy to install and fix by sliding the slide tube on the outside of the diversion tube and making threaded movement by rotating the screw cap and the liquid inlet tube, and makes it easy to eliminate pipeline connection and installation errors.

[0013] 2. This utility model uses a motor to drive a screw to rotate and a pull plate to make a threaded motion, which in turn causes the pull plate to move the pressure plate, making it easier to control the distance between the plug and the nozzle, and thus making it easier to control the ink output speed of the nozzle. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A cross-sectional view of the sliding tube;

[0016] Figure 3 This utility model Figure 1 A cross-sectional view of the connecting pipe;

[0017] Figure 4 This utility model Figure 1 Enlarged view of point A.

[0018] In the diagram: 1. Diverter pipe; 2. Connecting mechanism; 3. Fixing sleeve; 4. Connecting pipe; 5. Nozzle; 6. Adjusting mechanism; 7. Support; 21. Slide pipe; 22. Guide pin; 23. Sealing ring; 24. Screw cap; 25. Sealing gasket; 61. Plug; 62. Slide rod; 63. Stop sleeve; 64. Support plate; 65. Guide rod; 66. Compression spring; 67. Pressure plate; 68. Pull plate; 69. Motor; 610. Screw. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1 A printhead device for an inkjet printer includes a split pipe 1, a connecting mechanism 2 on the split pipe 1, a fixing sleeve 3 fixedly connected to the outside of the split pipe 1, a connecting pipe 4 fixedly connected to the inside of the fixing sleeve 3, a nozzle 5 fixedly connected to the inside of the connecting pipe 4, an adjusting mechanism 6 on the nozzle 5, and a support 7 fixedly connected to the upper end of the split pipe 1.

[0021] Please see Figures 1-2 The connecting mechanism 2 includes a slide tube 21. The slide tube 21 is slidably connected to the outside of the diversion tube 1. A guide pin 22 is fixedly connected to the upper end of the diversion tube 1. The guide pin 22 and the slide tube 21 are slidably connected. A sealing ring 23 is fixedly connected to the outside of the diversion tube 1. The sealing ring 23 and the slide tube 21 are slidably connected. By setting the sealing ring 23, the diversion tube 1 and the slide tube 21 are sealed. A screw cap 24 is movably connected to the outside of the slide tube 21. A sealing gasket 25 is glued to the end of the slide tube 21. By sliding the slide tube 21 outside the diversion tube 1 and rotating the screw cap 24 and the inlet tube to make threaded movement, the whole device is easy to install and fix, and the pipeline connection installation error is easy to eliminate.

[0022] Please see Figure 1 , Figure 3 , Figure 4The adjusting mechanism 6 includes a plug 61. The plug 61 is slidably connected inside the nozzle 5. A slide rod 62 is fixedly connected to the surface of the plug 61. A retaining sleeve 63 is fixedly connected to the outer side of the slide rod 62. The retaining sleeve 63 is slidably connected to the connecting pipe 4. By setting the retaining sleeve 63, the groove on the connecting pipe 4 is sealed. A support plate 64 is fixedly connected inside the connecting pipe 4. A guide rod 65 is fixedly connected to the lower end of the support plate 64. The guide rod 65 is slidably connected to the plug 61. A compression spring 66 is set on the outer side of the guide rod 65. One end of the compression spring 66 is fixedly connected to the support plate 64, and the other end of the compression spring 66 is fixedly connected to the plug 61. By setting the compression spring 66, the plug 61 can be easily reset. A pressure plate 67 is slidably connected to the outside of the connecting tube 4. The pressure plate 67 contacts the slide rod 62. A pull plate 68 is fixedly connected to the upper end of the pressure plate 67. A motor 69 is fixedly installed on the upper end of the support 7. A screw 610 is fixedly connected to the upper end of the rotating shaft of the motor 69. The screw 610 and the pull plate 68 are connected by threads. By setting the screw 610, the movement of the pull plate 68 is controlled. The motor 69 drives the screw 610 to rotate and the pull plate 68 to make threaded movements, thereby causing the pull plate 68 to drive the pressure plate 67 to move. This makes it easier to control the gap between the plug 61 and the nozzle 5, and thus easier to control the ink output speed of the nozzle 5.

[0023] The specific implementation process of this utility model is as follows: During installation, the slide tube 21 is manually moved. The slide tube 21 slides outside the diversion tube 1 and makes a threaded movement by rotating the screw cap 24 and the liquid inlet tube, thereby making the whole device easy to install and fix, and making it easy to eliminate pipe connection installation errors. The device is adjusted according to the ink output speed requirements. The motor 69 is started. The motor 69 drives the screw 610 to rotate. The rotation of the screw 610 and the pull plate 68 make a threaded movement, thereby making the pull plate 68 move. The pull plate 68 drives the pressure plate 67 to move. The pressure plate 67 drives the slide rod 62 to move. The slide rod 62 drives the plug 61 to move, thereby separating the plug 61 from the nozzle 5, making it easy to control the distance between the plug 61 and the nozzle 5, and thus making it easy to control the ink output speed of the nozzle 5.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A printhead assembly for an inkjet printer, comprising a splitter tube (1), characterized in that: A connecting mechanism (2) is provided on the diversion pipe (1), a fixing sleeve (3) is fixedly connected to the outside of the diversion pipe (1), a connecting pipe (4) is fixedly connected inside the fixing sleeve (3), a nozzle (5) is fixedly connected inside the connecting pipe (4), an adjusting mechanism (6) is provided on the nozzle (5), and a support (7) is fixedly connected to the upper end of the diversion pipe (1).

2. The printhead device for an inkjet printer according to claim 1, characterized in that: The connecting mechanism (2) includes a slide tube (21), which is slidably connected to the outside of the diversion tube (1). A guide pin (22) is fixedly connected to the upper end of the diversion tube (1). The guide pin (22) and the slide tube (21) are slidably connected. A screw cap (24) is movably connected to the outside of the slide tube (21). A sealing gasket (25) is glued to the end of the slide tube (21).

3. The printhead device for an inkjet printer according to claim 2, characterized in that: A sealing ring (23) is fixedly connected to the outside of the diversion pipe (1), and the sealing ring (23) and the slide pipe (21) are slidably connected.

4. The printhead device for an inkjet printer according to claim 1, characterized in that: The adjustment mechanism (6) includes a plug (61), the inside of the nozzle (5) is slidably connected to the plug (61), the surface of the plug (61) is fixedly connected to the slide rod (62), the inside of the connecting pipe (4) is fixedly connected to the support plate (64), the lower end of the support plate (64) is fixedly connected to the guide rod (65), the guide rod (65) and the plug (61) are slidably connected, the outside of the guide rod (65) is provided with a compression spring (66), the outside of the connecting pipe (4) is slidably connected to a pressure plate (67), the pressure plate (67) and the slide rod (62) are in contact, the upper end of the pressure plate (67) is fixedly connected to a pull plate (68), and the upper end of the support (7) is fixedly installed with a motor (69).

5. The printhead device for an inkjet printer according to claim 4, characterized in that: A retaining sleeve (63) is fixedly connected to the outside of the slide rod (62), and the retaining sleeve (63) and the connecting pipe (4) are slidably connected.

6. The printhead device for an inkjet printer according to claim 4, characterized in that: One end of the compression spring (66) is fixedly connected to the support plate (64), and the other end of the compression spring (66) is fixedly connected to the plug (61).

7. The printhead device for an inkjet printer according to claim 4, characterized in that: A screw (610) is fixedly connected to the upper end of the shaft of the motor (69), and the screw (610) and the pull plate (68) are connected by threads.

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