Positioning mechanism of UV flatbed printer

Abstract

The utility model relates to the field of UV flatbed printers, and discloses a UV flatbed printer positioning mechanism which comprises a printer body, a driving guide rail is fixedly installed on the edge of the top end of the printer body, a printing head is movably installed on the outer surface of the driving guide rail, and a containing groove is formed in the position, below the printing head, of the upper surface of the printer body. Sliding grooves are symmetrically formed in the two sides of the bottom end of the inner wall of the containing groove, movable frames are symmetrically and movably installed on the two sides of the inner wall of the containing groove and located in the sliding grooves, gears are rotatably installed on the upper surfaces of the movable frames, rack plates are movably installed at the front and rear ends of the outer surfaces of the gears, and limiting pressing blocks are fixedly installed on the edges of one sides of the rack plates; the multiple limiting pressing blocks abut against different positions of the outer surface of the printing stock, so that the effect of conveniently positioning the printing stocks of different sizes is achieved, the overall stability of the printing stocks during printing is improved, the problem of position deviation of the printing stocks during printing is solved, and the overall use efficiency of the printer body is improved.

Description

Technical Field

[0001] The present application relates to the field of UV flatbed printers, and in particular to a positioning mechanism of a UV flatbed printer. Background Art

[0002] UV flatbed printer is a device that uses ultraviolet (UV) light curing technology for printing. It can perform high-precision, full-color direct printing on the surface of various materials and is widely used in advertising production, home decoration, industrial manufacturing and other fields. UV flatbed printers use inkjet printing technology to accurately spray UV ink onto the surface of the medium through the nozzle. Due to the instant curing characteristics of UV ink, UV flatbed printers can achieve multi-layer printing and even printing with relief effects.

[0003] When using a UV flatbed printer, the print head needs to move back and forth along the outer surface of the substrate. Generally, the substrate is placed directly under the print head. During the printing process, the substrate may have a certain position deviation due to the movement of the print head, which in turn affects the printer's judgment of the substrate's position and reduces the overall printing effect of the substrate.

[0004] In view of the above-mentioned related technologies, the inventor believes that there is a defect of positional deviation when the substrate is printed by a UV flatbed printer. Therefore, a positioning mechanism of a UV flatbed printer is proposed to solve the above problem. Utility Model Content

[0005] In order to solve the problem of positional deviation of a substrate when it is printed by a UV flatbed printer, the present application provides a positioning mechanism for a UV flatbed printer.

[0006] The positioning mechanism of a UV flatbed printer provided in this application adopts the following technical solution:

[0007] A positioning mechanism for a UV flatbed printer comprises a printer body, a driving guide rail is fixedly mounted on the top edge of the printer body, a print head is movably mounted on the outer surface of the driving guide rail, a placement slot is provided on the upper surface of the printer body below the print head, sliding slots are symmetrically provided on both sides of the bottom end of the inner wall of the placement slot, movable frames are symmetrically and movably mounted inside the sliding slot on both sides of the inner wall of the placement slot, a gear is rotatably mounted on the upper surface of the movable frame, rack plates are movably mounted on the front and rear ends of the outer surface of the gear, a limiting pressure block is fixedly mounted on one side edge of the rack plate, a fixed inner cavity is provided at the bottom end of the sliding slot extending to the inside of the printer body, and a spacing adjustment mechanism is also provided inside the fixed inner cavity for controlling the relative movement of the movable frame.

[0008] Preferably, the spacing adjustment mechanism includes a servo motor, which is arranged in the middle of the bottom end of the inner wall of the fixed inner cavity, and a movable disc is installed at the output end of the upper surface of the servo motor, and both side edges of the bottom end of the movable disc are hinged with connecting rods, and the bottom end of the movable frame extends through the sliding groove to the inside of the fixed inner cavity and is welded with a connecting block, and the top edge of the connecting rod is rotatably connected to the lower bottom surface of the connecting block.

[0009] Preferably, guide grooves are provided at both the front and rear ends of the inner wall of the movable frame, one end edge of the rack plate is located inside the guide groove, and the rack plate and the guide groove are interlocked.

[0010] Preferably, one end of the rack plate moves close to the outer surface of the gear, and the gear and the rack plate are meshed with each other.

[0011] Preferably, the bottom of the movable frame is located inside the sliding groove, and the sliding groove and the movable frame are adapted to each other.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] By placing the substrate in the middle position inside the placement slot, rotating the movable disc drives the connecting rotating rod and the connecting block to move, so that the two movable frames can relatively move along the placement slot to adjust the spacing, so that the limiting pressure block can be movably abutted against the outer surface of the substrate, and the single rack plate after abutment drives the gear to rotate, thereby driving the other rack plate on the same side to move again, so that the limiting pressure block on the same side is limit-engaged at different positions on the outer surface of the substrate; compared with the existing technology, this solution has the effect of facilitating the positioning of substrates of different sizes, improving the overall stability of the substrate during printing, solving the problem of position offset of the substrate during printing, and improving the overall use efficiency of the printer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0015] Figure 2 It is a structural schematic diagram of a movable frame in an embodiment of the application;

[0016] Figure 3 is a schematic cross-sectional structure diagram of a fixed inner cavity in an embodiment of the application;

[0017] Figure 4 It is a schematic diagram of the structure of the connecting rod in the embodiment of the application;

[0018] Explanation of the accompanying drawings: 1. Printer body; 2. Driving guide rail; 3. Print head; 4. Placement slot; 5. Sliding slot; 6. Movable frame; 7. Gear; 8. Rack plate; 9. Limiting pressure block; 10. Fixed inner cavity; 11. Servo motor; 12. Movable disc; 13. Connecting rotating rod; 14. Connecting block; 15. Guide slot. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-4 This application is described in further detail.

[0020] The present application embodiment discloses a positioning mechanism for a UV flatbed printer. Figure 1-4 A positioning mechanism of a UV flatbed printer includes a printer body 1, a driving guide rail 2 is fixedly mounted on the top edge of the printer body 1, a print head 3 is movably mounted on the outer surface of the driving guide rail 2, a placement groove 4 is opened on the upper surface of the printer body 1 below the print head 3, sliding grooves 5 are symmetrically opened on both sides of the bottom end of the inner wall of the placement groove 4, and movable frames 6 are symmetrically and movably mounted on both sides of the inner wall of the placement groove 4 inside the sliding groove 5, the bottom of the movable frame 6 is located inside the sliding groove 5, the sliding groove 5 and the movable frame 6 are adapted to each other, and a gear 7 is rotatably mounted on the upper surface of the movable frame 6 Rack plates 8 are movably installed at both ends of the outer surface of the gear 7, one end of the rack plate 8 is movably close to the outer surface of the gear 7, the gear 7 and the rack plate 8 are meshed with each other, and a limiting pressure block 9 is fixedly installed on one side edge of the rack plate 8. The bottom end of the sliding groove 5 extends to the inside of the printer body 1 to open a fixed inner cavity 10, and guide grooves 15 are opened at both ends of the inner wall of the movable frame 6. One end edge of the rack plate 8 is located inside the guide groove 15, and the rack plate 8 and the guide groove 15 are embedded with each other. A spacing adjustment mechanism is also provided inside the fixed inner cavity 10 to control the relative movement of the movable frame 6.

[0021] By placing the substrate in the middle position inside the placement slot 4 and adjusting the distance between the two movable frames 6 inside the placement slot 4, the movable movable frame 6 drives the single limiting pressure block 9 on the same side to abut against the outer surface of the substrate, so that the single rack plate 8 after abutment remains stationary, and at the same time, the movable movable frame 6 drives the gear 7 to rotate, and then drives the other rack plate 8 on the same side to move, until the limiting pressure block 9 is limitedly engaged at different positions on the outer surface of the substrate, so that multiple limiting pressure blocks 9 are suitable for substrates of different shapes, reflecting the overall applicability of the limiting pressure blocks 9 to substrates.

[0022] Reference Figure 3 and Figure 4The spacing adjustment mechanism includes a servo motor 11, which is arranged at the middle of the bottom end of the inner wall of the fixed inner cavity 10. A movable disc 12 is installed at the output end of the upper surface of the servo motor 11. Both sides of the bottom end of the movable disc 12 are hinged with connecting rods 13. The bottom end of the movable frame 6 extends through the sliding groove 5 to the inside of the fixed inner cavity 10 and is welded with a connecting block 14. The top edge of the connecting rod 13 is rotatably connected to the lower bottom surface of the connecting block 14.

[0023] By starting the servo motor 11 to drive the movable disc 12 to rotate, the movable disc 12 rotates to drive the connecting rod 13 to move, and then pulls the connecting block 14 to move along the inside of the fixed inner cavity 10, so that the movable connecting block 14 drives the movable frame 6 to move synchronously along the top of the sliding groove 5, and then adjusts the distance between the two movable frames 6 inside the placement groove 4, which reflects the overall activity adjustment effect of the movable frame 6.

[0024] The implementation principle of the positioning mechanism of a UV flatbed printer in the embodiment of the present application is as follows: by placing the substrate in the middle position inside the placement slot 4, starting the servo motor 11 to drive the movable disc 12 to rotate, the input end of the servo motor 11 power supply is electrically connected to the output end of the external power supply, so that the movable disc 12 rotates to drive the connecting rod 13 to move, and then pulls the connecting block 14 to move along the inside of the fixed inner cavity 10, so that the movable connecting block 14 drives the movable frame 6 to move synchronously along the top of the sliding slot 5, and then adjusts the distance between the two movable frames 6 inside the placement slot 4, so that the movable movable frame 6 drives the same The single limiting pressure block 9 on the side abuts against the outer surface of the substrate, so that the single rack plate 8 remains stationary after the abutment, and at the same time the movable frame 6 drives the gear 7 to rotate, thereby driving the other rack plate 8 on the same side to move, until the limiting pressure block 9 is limited and clamped at different positions on the outer surface of the substrate, so that multiple limiting pressure blocks 9 are suitable for substrates of different shapes. Compared with the prior art, this solution has the effect of facilitating the positioning of substrates of different sizes, improving the overall stability of the substrate during printing, solving the problem of position offset of the substrate during printing, and improving the overall use efficiency of the printer body 1.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0026] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0028] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A positioning mechanism for a UV flatbed printer, comprising a printer body (1), wherein the top edge of the printer body (1) is fixedly mounted on a driving guide rail (2), and a print head (3) is movably mounted on the outer surface of the driving guide rail (2), characterized in that: The upper surface of the printer body (1) is provided with a placement groove (4) below the print head (3), and sliding grooves (5) are symmetrically provided on both sides of the bottom end of the inner wall of the placement groove (4), and movable frames (6) are symmetrically and movably installed inside the sliding grooves (5) on both sides of the inner wall of the placement groove (4), and a gear (7) is rotatably installed on the upper surface of the movable frame (6), and rack plates (8) are movably installed at both front and rear ends of the outer surface of the gear (7), and a limiting pressure block (9) is fixedly installed on one side edge of the rack plate (8), and the bottom end of the sliding groove (5) extends to the inside of the printer body (1) to provide a fixed inner cavity (10), and a spacing adjustment mechanism is also provided inside the fixed inner cavity (10) for controlling the relative movement of the movable frame (6).

2. The positioning mechanism of a UV flatbed printer according to claim 1, characterized in that: The spacing adjustment mechanism comprises a servo motor (11), the servo motor (11) is arranged at the middle of the bottom end of the inner wall of the fixed inner cavity (10), a movable disc (12) is installed at the output end of the upper surface of the servo motor (11), both sides of the bottom end of the movable disc (12) are hinged with connecting rods (13), the bottom end of the movable frame (6) passes through the sliding groove (5) and extends to the inside of the fixed inner cavity (10) and is welded with a connecting block (14), and the top edge of the connecting rod (13) is rotatably connected to the bottom surface of the connecting block (14).

3. The positioning mechanism of a UV flatbed printer according to claim 1, characterized in that: The inner wall of the movable frame (6) is provided with guide grooves (15) at both the front and rear ends, one end edge of the rack plate (8) is located inside the guide groove (15), and the rack plate (8) and the guide groove (15) are interlocked.

4. The positioning mechanism of a UV flatbed printer according to claim 1, characterized in that: One end of the rack plate (8) moves close to the outer surface of the gear (7), and the gear (7) and the rack plate (8) are meshed with each other.

5. The positioning mechanism of a UV flatbed printer according to claim 1, characterized in that: The bottom of the movable frame (6) is located inside the sliding groove (5), and the sliding groove (5) and the movable frame (6) are adapted to each other.

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