A UV printer with quickly detachable print head

Abstract

The present invention provides a UV printer with a quickly detachable print head. The UV printer with a quickly detachable print head comprises a lower support plate, the upper surface of which is fixedly connected with a second track protection cover and a first track protection cover, the side surfaces of the second track protection cover and the first track protection cover are provided with a first gearbox and a second gearbox, and the side surface of the second track protection cover is fixedly connected with a first motor. The UV printer with a quickly detachable print head, by designing a three-degree inclination angle snap-in assembly and using 42CrMo steel and polyetheretherketone, enables the print head to achieve a self-locking effect and precise positioning during installation, thereby avoiding loosening problems caused by vibration or external force. The inclination angle design not only provides a self-locking function, but also ensures high precision of each installation. The selection of composite materials reduces the overall weight and improves the convenience of disassembly and assembly while ensuring structural strength and durability.

Description

Technical Field

[0001] The invention relates to the technical field of UV printers, in particular to a UV printer with a quickly detachable print head. Background Art

[0002] UV printers with quick-detachable print heads are advanced industrial printing equipment, mainly used for high-precision image and text output, and their working principle is based on UV curing technology. The main components of the entire system include print head assembly, UV curing light source, motion platform, control system and ink supply system. The print head is the core component of the UV printer, responsible for accurately spraying UV-sensitive ink in the form of tiny ink droplets onto the surface of the printing medium. In order to achieve quick disassembly, the print head is usually mounted on a bracket with a quick-detach structure. The quick-detach structure can use mechanical snaps, magnetic connections or other quick locking mechanisms, so that the print head can be quickly disassembled and assembled without the use of tools or with only simple operations. This design not only facilitates the replacement of the print head, but also enables quick maintenance and cleaning in the event of blockage or damage. The UV light source in the UV printer is located after the print head, and usually uses LED or mercury lamp as the light source. The motion platform is usually a multi-axis CNC system that can accurately control the movement of the print head relative to the printing medium. The control system includes a hardware control unit and a software part for coordinating the work of various components. The ink supply system delivers UV-sensitive ink to the print head through ink tubes.

[0003] Although the quick-disassembly design makes it easy to replace the print head, the stability of the connection may be affected. Especially in long-term, high-frequency printing tasks, the mechanical buckle or magnetic connection parts may gradually loosen, causing a slight displacement of the print head. This slight displacement may cause problems such as image misalignment and ink drop position deviation in high-precision printing, thus affecting the print quality. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a UV printer with a quickly detachable print head, which solves the problem that mechanical buckles or magnetically connected parts may gradually loosen, causing slight displacement of the print head and thus affecting the printing quality.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A UV printer with a quickly detachable print head, comprising:

[0008] A lower support plate, wherein the upper surface of the lower support plate is fixedly connected with a second track protection cover and a first track protection cover, the side surfaces of the second track protection cover and the first track protection cover are provided with a first gearbox and a second gearbox, the side surface of the second track protection cover is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a transmission track, the first track protection cover and the second track protection cover are respectively fixedly connected with sliding tracks inside, and the upper surface of the sliding track is slidably connected with a lateral support plate;

[0009] A transverse guide rail is disposed on the upper surface of the lateral support plate, a mounting plate is disposed on the rear surface of the transverse guide rail, a print head device is disposed on the rear side of the mounting plate, and the print head device includes a snap-fit ​​assembly mounted on the mounting plate, and a support assembly connected to the snap-fit ​​assembly.

[0010] Preferably, the transmission track is meshed with the first gearbox and the second gearbox respectively, a threaded rod is rotatably connected inside the sliding track, and the output ends of the second gearbox and the first gearbox are fixedly connected with the threaded rod respectively.

[0011] Preferably, the lateral support plate is threadedly connected to the threaded rod.

[0012] Preferably: the upper surface of the lower support plate is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a movable block, the upper surface of the movable block is fixedly connected with a movable platform, the upper surface of the movable platform is fixedly connected with a support rod, the upper surface of the support rod is fixedly connected with a placement table, and the movable block is slidably connected to the lower support plate.

[0013] Preferably, the side surface of the print head device is provided with heat dissipation holes, and the front surface of the transverse guide rail is provided with an auxiliary support sheet.

[0014] Preferably: the locking assembly includes a mounting rail, a fixing column, a fixing ring, an inclined surface and a center hole, the rear surface of the mounting rail is fixedly connected to the fixing column, the side surface of the fixing column is arc-shaped, the fixing column has an inclination angle of three degrees, the rear surface of the mounting rail is fixedly connected to the fixing ring, the rear surface of the fixing ring is provided with an inclined surface, the upper surface of the fixing ring is provided with a center hole, the center hole extends to the interior of the fixing ring, and the side surface of the mounting rail is provided with a groove.

[0015] Preferably, the support assembly includes a connecting plate, a horizontal plate fixedly connected to the front surface of the connecting plate, and a lower auxiliary support plate fixed to the front surface of the connecting plate and located at the lower side of the horizontal plate.

[0016] Preferably: an electromagnet is fixedly connected to the rear surface of the connecting plate, a limit block is provided on the rear surface of the connecting plate and located below the electromagnet, the limit block is slidably connected to the connecting plate, the position of the limit block corresponds to the center hole, and a mounting hole is provided on the side surface of the connecting plate, and the mounting hole is in contact with the fixing column.

[0017] (III) Beneficial effects

[0018] The present invention provides a UV printer with a quickly detachable print head. It has the following beneficial effects:

[0019] By designing a three-degree tilt angle snap-in component and using 42CrMo steel and polyetheretherketone, the print head can achieve self-locking effect and precise positioning during installation, avoiding loosening problems caused by vibration or external force. The tilt angle design not only provides a self-locking function, but also ensures high precision of each installation. The choice of composite materials reduces the overall weight and improves the convenience of disassembly and assembly while ensuring structural strength and durability. The precise matching length of the mounting rail and the fixed column is controlled within a reasonable range. The micron-level gap control effectively prevents slight deviation of the print head position.

[0020] The present invention adopts a double locking mechanism combining an electromagnetic lock and a limit block, which provides quick disassembly and assembly while further enhancing the stability of the print head. The electromagnetic lock realizes quick initial fixation and is easy to operate, while the cooperation between the limit block and the center hole ensures the final precise locking to prevent any slight displacement during use. In terms of process, all key components are processed and surface treated with high precision, which not only improves the durability of the components, but also reduces the wear that may occur during frequent disassembly and assembly, ensuring high precision and high stability in long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 The present invention Figure 1 A schematic diagram of the structure enlargement in the middle;

[0023] Figure 3 It is a partial structural schematic diagram of the present invention;

[0024] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0025] Figure 5 This is a schematic diagram of the installation structure of the present invention;

[0026] Figure 6 It is a rear view of the installation structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0028] Figure 8 It is a schematic diagram of the connecting plate structure of the present invention.

[0029] Among them, 1. lower support plate; 2. first track protection cover; 3. second track protection cover; 4. first motor; 5. transmission track; 6. first gearbox; 7. second gearbox; 8. second motor; 9. sliding track; 10. movable block; 11. movable platform; 12. support rod; 13. placement table; 14. lateral support plate; 15. print head device; 16. connecting plate; 17. horizontal plate; 18. mounting guide rail; 19. groove; 20. lower auxiliary support plate; 21. fixing ring; 22. inclined surface; 23. center hole; 24. electromagnet; 25. limit block; 26. fixing column; 27. mounting hole; 28. transverse guide rail; 29. ​​mounting plate; 30. auxiliary support plate; 31. heat dissipation hole. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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.

[0031] Embodiment 1:

[0032] like Figure 1-8 As shown, an embodiment of the present invention provides a UV printer with a quickly detachable print head, comprising a lower support plate 1, a second track protection cover 3 and a first track protection cover 2 being fixedly connected to the upper surface of the lower support plate 1, a first gearbox 6 and a second gearbox 7 being respectively mounted on the side surfaces of the second track protection cover 3 and the first track protection cover 2, for driving the movement of the print head.

[0033] The output end of the first motor 4 is fixedly connected to a transmission track 5, which is respectively engaged with the first gearbox 6 and the second gearbox 7 to transmit power to the sliding track 9. A threaded rod is installed inside the sliding track 9, and the threaded rod is fixedly connected to the output end of the gearbox. The rotation of the threaded rod drives the lateral support plate 14 to move along the sliding track 9, thereby adjusting the position of the print head. The lateral support plate 14 is fixed to the threaded rod by a threaded connection to ensure that the positioning of the print head is accurate and stable.

[0034] The second motor 8 is fixedly connected to the upper surface of the lower support plate 1, and the output end of the second motor 8 is connected to the movable block 10. The upper surface of the movable block 10 is fixedly connected with a movable platform 11, and a support rod 12 is further fixed on the movable platform 11. The upper surface of the support rod 12 is connected with a placement table 13, which provides a stable platform for supporting the overall device of the print head. The movable block 10 and the lower support plate 1 are connected by a sliding connection to realize flexible adjustment and quick disassembly of the print head device 15.

[0035] The transverse guide rail 28 is mounted on the upper surface of the lateral support plate 14, and a mounting plate 29 is fixed to the rear surface of the guide rail. The print head device 15 is tightly connected to the mounting plate 29 through a snap assembly. The ingenious combination of the snap assembly and the support assembly allows the print head to be easily disassembled and replaced while maintaining high-precision positioning to avoid minor displacement problems during use.

[0036] Embodiment 2:

[0037] like Figure 1-8 As shown, an embodiment of the present invention provides a UV printer with a quickly detachable print head, comprising a lower support plate 1, a second track protection cover 3 and a first track protection cover 2 are fixedly connected to the upper surface of the lower support plate 1, a first gearbox 6 and a second gearbox 7 are arranged on the side surfaces of the second track protection cover 3 and the first track protection cover 2, a first motor 4 is fixedly connected to the side surface of the second track protection cover 3, a transmission track 5 is fixedly connected to the output end of the first motor 4, a sliding track 9 is fixedly connected to the inside of the first track protection cover 2 and the second track protection cover 3, and a lateral support plate 14 is slidably connected to the upper surface of the sliding track 9;

[0038] A transverse guide rail 28 is provided on the upper surface of the lateral support plate 14, a mounting plate 29 is provided on the rear surface of the transverse guide rail 28, a print head device 15 is provided on the rear side of the mounting plate 29, a heat dissipation hole 31 is provided on the side surface of the print head device 15, an auxiliary support plate 30 is provided on the front surface of the transverse guide rail 28, the print head device 15 includes a clamping assembly located on the mounting plate 29 and a support assembly connected to the clamping assembly, the clamping assembly includes a mounting guide rail 18, a fixing column 26, a fixing ring 21, an inclined surface 22 and a center hole 23, the rear surface of the mounting guide rail 18 is fixedly connected to the fixing column 26, the side surface of the fixing column 26 is arc-shaped, the fixing column 26 has an inclination angle of three degrees, the rear surface of the mounting guide rail 18 is fixedly connected to the fixing ring 21, and the rear surface of the fixing ring 21 is provided with an inclined surface 22. A center hole 23 is provided on the upper surface of the fixing ring 21, and the center hole 23 extends to the inside of the fixing ring 21. A groove 19 is provided on the side surface of the mounting guide rail 18. The supporting assembly includes a connecting plate 16, a horizontal plate 17 fixedly connected to the front surface of the connecting plate 16, and a lower auxiliary supporting plate 20 fixed to the front surface of the connecting plate 16 and located at the lower side of the horizontal plate 17. An electromagnet 24 is fixedly connected to the rear surface of the connecting plate 16. A limit block 25 is provided on the rear surface of the connecting plate 16 and located at the lower side of the electromagnet 24. The limit block 25 is slidably connected to the connecting plate 16, and the position of the limit block 25 corresponds to the center hole 23. A mounting hole 27 is provided on the side surface of the connecting plate 16, and the mounting hole 27 contacts with the fixing column 26. The material of the limit block 25 is 42CrMo steel, and the material of the fixing column 26 is polyetheretherketone.

[0039] In the second embodiment, a high-precision quick-disassembly print head system based on a combination of 42CrMo steel and polyetheretherketone material is provided. The system realizes the self-locking effect and precise positioning of the print head by designing a snap-fit ​​component with a three-degree tilt angle and combining high-strength alloy steel with high-performance engineering plastics, thereby solving the problem of loosening of the traditional print head due to vibration or external force during installation. The fixing column 26 is made of 42CrMo steel and is quenched and tempered to improve its hardness and wear resistance. The side surface of the fixing column 26 is arc-shaped and is designed with a three-degree tilt angle to ensure a self-locking effect when the print head is installed. The design of the tilt angle makes the print head easy to install. It can automatically align during installation and maintain high stability during use to prevent loosening due to external force. The installation guide rail 18 is fixedly connected to the fixed column 26 and is also made of 42CrMo steel to ensure the strength and durability of the overall structure, ensuring the precise positioning of the print head after installation to avoid the generation of small displacements. The support assembly includes a connecting plate 16, a horizontal plate 17 and a lower auxiliary support plate 20, wherein the rear surface of the connecting plate 16 is fixedly connected with an electromagnet 24. The horizontal plate 17 and the auxiliary support plate are both made of polyetheretherketone material. PEEK material has excellent mechanical strength and wear resistance, and also has a low friction coefficient, and is suitable for structures that require frequent disassembly and assembly. , Composite materials used: The high strength of 42CrMo steel is combined with the lightweight of PEEK, which not only ensures the rigidity and durability of the support component, but also greatly reduces the weight of the print head device 15, and improves the convenience of operation. The electromagnet 24 achieves rapid initial fixation through electromagnetic adsorption force, which simplifies the installation process of the print head. The design of the electromagnetic lock not only improves the operating efficiency, but also ensures that the print head can be accurately aligned during installation, reducing human operation errors. The limit block 25 is slidably connected to the connecting plate 16, and its position corresponds to the center hole 23 of the fixing ring 21. The limit block 25 is inserted into the center hole 23 during installation to achieve the final precise locking to prevent the print head from being out of place during use. Any tiny displacement is detected to ensure the accuracy and stability of printing. The fixed column 26, the mounting rail 18, and other key components are processed with high precision by CNC machine tools, and the dimensional accuracy is controlled within ±0.01 mm. Through high-precision processing, the precise matching of each component is ensured, and the overall stability of the system is further improved. All key components have undergone surface treatment technology. For example, the surface of 42CrMo steel is nitrided to increase its wear resistance and hardness, and the PEEK components are polished to reduce friction and wear. Through these process treatments, the durability and reliability of the system are ensured, especially in the case of frequent disassembly and assembly, it can maintain long-term high precision.

[0040] Working principle: the first track protection cover 2 and the second track protection cover 3 are fixed on the lower support plate 1, the transmission track 5 is driven by the first motor 4, and the lateral support plate 14 installed on the sliding track 9 is driven to move by meshing with the first gearbox 6 and the second gearbox 7. The lateral support plate 14 is provided with a transverse guide rail 28, and the print head device 15 is fixed on the transverse guide rail 28 through a clamping assembly and a support assembly. The clamping assembly is composed of a mounting guide rail 18, a fixing column 26, a fixing ring 21, etc. The design of the inclined surface 22 and the center hole 23 realizes the rapid installation and disassembly of the print head. The support assembly includes a connecting plate 16, a horizontal plate 17 and a lower auxiliary support plate 20. The connecting plate 16 is also provided with an electromagnet 24 and a limit block 25 to further ensure the stability of the print head after installation. This design facilitates the maintenance and replacement of the print head and improves the use efficiency of the UV printer.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A UV printer with a quickly detachable print head, characterized in that: include: A lower support plate, the upper surface of which is fixedly connected with a second track protection cover and a first track protection cover, the side surfaces of the second track protection cover and the first track protection cover are provided with a first gearbox and a second gearbox, the side surface of the second track protection cover is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a transmission track, the first track protection cover and the second track protection cover are respectively fixedly connected with sliding tracks inside, the upper surface of the sliding track is slidably connected with a lateral support plate, the transmission track is respectively meshed with the first gearbox and the second gearbox, the inside of the sliding track is rotatably connected with a threaded rod, and the output ends of the second gearbox and the first gearbox are respectively fixedly connected with the threaded rod; The upper surface of the lateral support plate is provided with a transverse guide rail, the rear surface of the transverse guide rail is provided with a mounting sheet, the rear side of the mounting sheet is provided with a print head device, and the print head device includes a clamping assembly located on the mounting sheet and clamped and installed, and a support assembly connected to the clamping assembly; The clamping assembly includes a mounting rail, a fixing column, a fixing ring, an inclined surface and a center hole. The rear surface of the mounting rail is fixedly connected to the fixing column and the fixing ring. The side surface of the fixing column is arc-shaped. The fixing column has an inclination angle of three degrees. The rear surface of the fixing ring is provided with an inclined surface. The upper surface of the fixing ring is provided with a center hole, and the center hole extends to the interior of the fixing ring. The support assembly includes a connecting plate, the rear surface of the connecting plate is fixedly connected to an electromagnet, a limit block is provided on the rear surface of the connecting plate and located below the electromagnet, the limit block is slidably connected to the connecting plate, the position of the limit block corresponds to the center hole, and a mounting hole is provided on the side surface of the connecting plate, and the mounting hole is in contact with a fixing column.

2. A UV printer with a quickly detachable print head according to claim 1, characterized in that: The lateral support plate is threadedly connected to the threaded rod.

3. The UV printer with a quickly detachable print head according to claim 1, characterized in that: A second motor is fixedly connected to the upper surface of the lower support plate, a movable block is fixedly connected to the output end of the second motor, a movable platform is fixedly connected to the upper surface of the movable block, a support rod is fixedly connected to the upper surface of the movable platform, a placing table is fixedly connected to the upper surface of the support rod, and the movable block is slidably connected to the lower support plate.

4. The UV printer with a quickly detachable print head according to claim 1, characterized in that: The side surface of the print head device is provided with heat dissipation holes, and the front surface of the transverse guide rail is provided with an auxiliary support sheet.

5. The UV printer with a quickly detachable print head according to claim 1, characterized in that: The side surface of the mounting rail is provided with a groove, and the support assembly further comprises a horizontal plate fixedly connected to the front surface of the connecting plate, and a lower auxiliary support plate fixed to the front surface of the connecting plate and located at the lower side of the horizontal plate.

Images