A hot foaming ink-jet printer with convenient nozzle replacement

Abstract

The utility model discloses a hot foaming inkjet printer that nozzle is convenient to replace relates to hot foaming inkjet printer technical field. A kind of hot foaming inkjet printer that nozzle is convenient to replace, including conveying table and support table, support table is fixedly connected at the bottom of conveying table, nozzle replacement structure is located on support table, nozzle replacement structure includes two electric telescopic rod, lifting frame, threaded rod and sliding plate, two electric telescopic rod are all installed at the top of support table, the telescopic end of two electric telescopic rod is fixedly connected with lifting frame, threaded rod is rotatably connected in the inside of lifting frame, by the rubber limiting rod, connecting rod, sliding disc and clamping block being set, operator only needs to pull down rubber limiting rod, then pulls connecting rod, can make clamping block slide out from clamping groove, remove the clamping of plug block, easily take out plug block together with nozzle structure from slot and replace, need not use extra tool, operation step is simple, greatly improve the convenience of operation.

Description

Technical Field

[0001] This utility model relates to the field of thermal inkjet printer technology, and in particular to a thermal inkjet printer with easy printhead replacement. Background Technology

[0002] Thermal inkjet printers are widely used in product packaging and labeling in industries such as food, pharmaceuticals, and electronic components due to their high printing accuracy and wide material adaptability. Their core working component is the printhead, which prints characters and patterns by heating ink. However, they are prone to ink clogging and component wear during long-term use, requiring frequent disassembly and replacement.

[0003] Currently, most thermal inkjet printers on the market use screws to fix the printheads. While this structure can ensure the strength of the fixation, replacing the printhead requires the use of tools such as screwdrivers, which is cumbersome and time-consuming. In high-frequency replacement scenarios, the cumulative downtime is long, which seriously reduces production efficiency. Therefore, we propose a thermal inkjet printer with easy printhead replacement. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a thermal inkjet printer with easy printhead replacement. This solves the problem that most thermal inkjet printers on the market use screw locking to fix the printhead. Although this structure can ensure the fixing strength, it requires the use of tools such as screwdrivers to disassemble when replacing the printhead. The operation steps are cumbersome and each replacement takes a long time. In high-frequency replacement scenarios, the cumulative downtime is long, which seriously reduces the production efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a thermal inkjet printer with easy printhead replacement, comprising:

[0006] The conveyor table and the support table are fixedly connected to the bottom of the conveyor table.

[0007] The nozzle replacement structure is located on the support platform.

[0008] The nozzle replacement structure includes two electric telescopic rods, a lifting frame, a threaded rod, and a sliding plate. Both electric telescopic rods are mounted on the top of the support platform, with their telescopic ends fixedly connected to the lifting frame. The threaded rod is rotatably connected inside the lifting frame. A stepper motor is mounted on one side of the lifting frame, with its output end extending into the lifting frame and fixedly connected to the threaded rod. The sliding plate is threaded onto the outer surface of the threaded rod and slidably connected to the inner top wall of the lifting frame. A slot is provided on one side of the sliding plate, and limit grooves are provided on both sides. A plug is slidably connected inside the slot, and slots are provided on both sides of the plug.

[0009] Preferably, the nozzle replacement structure further includes two sliding discs, which are slidably connected inside corresponding limiting grooves. Each of the two sliding discs has a locking block fixedly connected to its opposite surface. The ends of the two locking blocks away from the corresponding sliding discs slide into the slots and engage with the corresponding slots. Connecting rods are fixedly connected to the sides of the two sliding discs away from the corresponding locking blocks. The ends of the two connecting rods away from the sliding discs slide to the outside of the corresponding limiting grooves. Springs are sleeved on the outside of the two connecting rods. Two limiting through holes are opened at the bottom of the sliding plate. Rubber limiting rods are interference-fitted into the interior of each of the two limiting through holes. Insertion holes are opened at the bottom of each of the two connecting rods. The tops of the two rubber limiting rods are inserted into the interior of the corresponding insertion holes.

[0010] Preferably, the nozzle structure is installed on the side of the insert block away from the sliding plate.

[0011] Preferably, one end of each of the two springs is fixedly connected to the corresponding sliding disk, and the ends of the two springs away from the corresponding sliding disk are fixedly connected to the inner wall of the corresponding limiting groove.

[0012] Preferably, the bottom ends of the two rubber limiting rods are respectively fixedly connected to elastic bands, and the ends of the two elastic bands away from the corresponding rubber limiting rods are respectively fixedly connected to the bottom of the sliding plate.

[0013] Preferably, both of the card blocks are trapezoidal structures.

[0014] Preferably, a controller is installed on the top of the support platform.

[0015] Preferably, a photoelectric sensor is installed on the side of the sliding plate away from the nozzle structure.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This thermal inkjet printer features easy-to-replace printheads. With its rubber limit rod, connecting rod, sliding plate, and locking block, the operator only needs to pull down the rubber limit rod and then pull the connecting rod to slide the locking block out of the slot, releasing the locking mechanism. The locking block, along with the printhead structure, can be easily removed from the slot for replacement without the need for additional tools. The simple operation greatly improves convenience. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the lifting frame structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the sliding plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the insert structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the rubber limiting rod structure of this utility model.

[0024] Reference numerals: 1. Conveyor table; 2. Support platform; 3. Controller; 4. Electric telescopic rod; 5. Lifting frame; 6. Stepper motor; 7. Threaded rod; 8. Sliding plate; 9. Nozzle structure; 10. Elastic band; 11. Rubber limit rod; 12. Insert block; 13. Connecting rod; 14. Spring; 15. Sliding disc; 16. Limiting through hole; 17. Limiting slide groove; 18. Slot; 19. Locking block; 20. Insertion hole; 21. Slot. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Conveyor 1: Used to transport items to be inkjet printed;

[0030] Support platform 2: Fixedly connected to the bottom of conveyor platform 1, providing stable support for nozzle replacement structure;

[0031] Controller 3: Installed on top of support platform 2, it is the control core of the entire equipment and is used to control the operation of various components;

[0032] Electric telescopic rod 4: Both are installed on the top of the support platform 2. The telescopic movement drives the lifting frame 5 to move up and down, thereby adjusting the vertical position of the nozzle structure 9.

[0033] Lifting frame 5: It is fixedly connected to the telescopic ends of the two electric telescopic rods 4, and internally rotates and connects to the threaded rod 7, providing an installation base for components such as the sliding plate 8;

[0034] Stepper motor 6: Installed on one side of the lifting frame 5, with its output end extending into the interior of the lifting frame 5 and fixedly connected to the threaded rod 7, driving the threaded rod 7 to rotate;

[0035] Threaded rod 7: Rotatably connected inside the lifting frame 5, it drives the sliding plate 8 to move horizontally when rotated;

[0036] Sliding plate 8: It is threaded onto the outer surface of threaded rod 7 and slidably connected to the inner top wall of lifting frame 5. It has a slot 21 and a limiting slide groove 17 on one side and two limiting through holes 16 at the bottom for installing nozzle structure 9 and related components.

[0037] Printhead structure 9: Installed on the side of the insert block 12 away from the sliding plate 8, for coding operations;

[0038] Elastic band 10: The ends of the two elastic bands 10 away from the corresponding rubber limit rods 11 are respectively fixedly connected to the bottom of the sliding plate 8 to provide elastic tension for the rubber limit rods 11;

[0039] Rubber limiting rod 11: The bottom ends of the two rubber limiting rods 11 are respectively fixedly connected to elastic bands 10, and the top ends are inserted into the corresponding insertion holes 20 to limit the position of the connecting rod 13.

[0040] Insert 12: It is slidably connected to the slot 21 on one side of the sliding plate 8, and has slots 18 on both sides for installing the nozzle structure 9;

[0041] Connecting rod 13: The ends of the two connecting rods 13 that are away from the sliding disk 15 both slide to the outside of the corresponding limiting groove 17, and the bottom is provided with a hole 20 for driving the sliding disk 15 to move;

[0042] Spring 14: One end of each of the two springs 14 is fixedly connected to the corresponding sliding disk 15, and the end away from the corresponding sliding disk 15 is fixedly connected to the inner wall of the corresponding limiting groove 17, providing a reset force for the sliding disk 15;

[0043] Sliding disk 15: Two sliding disks 15 are respectively slidably connected inside the corresponding limiting slide groove 17, and the opposite surfaces are respectively fixedly connected with a locking block 19, which is used to drive the locking block 19 to move.

[0044] Limiting through hole 16: It is opened at the bottom of the sliding plate 8, and a rubber limiting rod 11 is interference-fitted inside to limit the position of the rubber limiting rod 11;

[0045] Limiting groove 17: Two limiting grooves 17 are respectively opened on both sides of the sliding plate 8, and the sliding disk 15 is slidably connected inside, providing a sliding track for the sliding disk 15;

[0046] Slots 18: are formed on both sides of the insert block 12 and engage with the slot block 19 to fix the position of the insert block 12;

[0047] Locking blocks 19: The ends of the two locking blocks 19 that are away from the corresponding sliding disks 15 both slide into the interior of the slots 21 and engage with the corresponding slots 18. They are both trapezoidal structures and are used to engage and fix the insert blocks 12.

[0048] Example 1:

[0049] like Figure 1-5 As shown, when it is necessary to disassemble the nozzle structure 9, first pull down the rubber limiting rod 11 so that the top of the rubber limiting rod 11 is pulled out from the insertion hole 20 at the bottom of the connecting rod 13. At this time, pull the two connecting rods 13. The two connecting rods 13 drive the corresponding sliding plate 15 to slide in the corresponding limiting groove 17. The sliding of the two sliding plates 15 will compress the corresponding spring 14. The movement of the sliding plate 15 will drive the locking block 19 to move, so that the locking block 19 slides out from the corresponding locking groove 18, releasing the locking and fixing of the plug 12. The plug 12 is slidably connected in the slot 21 on one side of the sliding plate 8. At this time, the plug 12 together with the nozzle structure 9 installed on it can be taken out from the slot 21 for replacement.

[0050] Example 2:

[0051] like Figure 5 As shown, the elastic band 10 provides additional tension to enhance the connection strength between the rubber limiting rod 11 and the insertion hole 20, thus preventing the rubber limiting rod 11 from being lost after being pulled out.

[0052] Furthermore, when using the device, the conveyor 1 is used to transport the items to be printed, the support platform 2 is fixedly connected to the bottom of the conveyor 1 to provide stable support for the entire print head replacement structure, and the controller 3 installed on the top of the support platform 2 is the control core of the entire device, used to control the operation of each component.

[0053] When it is necessary to replace the nozzle or adjust the nozzle height, the controller 3 controls the two electric telescopic rods 4 to work. Both electric telescopic rods 4 are installed on the top of the support platform 2. The telescopic rods 4 extend and retract, driving the lifting frame 5 to move up and down, thereby realizing the vertical position adjustment of the nozzle structure 9. The stepper motor 6 rotates, driving the threaded rod 7 to rotate inside the lifting frame 5. Since the sliding plate 8 is threadedly sleeved on the outer surface of the threaded rod 7 and slidably connected to the inner top wall of the lifting frame 5, when the threaded rod 7 rotates, the sliding plate 8 will move horizontally along the threaded rod 7, thereby driving the nozzle structure 9 installed on the sliding plate 8 to move horizontally.

[0054] When it is necessary to disassemble the nozzle structure 9, first pull down the rubber limiting rod 11. The bottom end of the rubber limiting rod 11 is fixedly connected to the bottom of the sliding plate 8 through the elastic band 10. Overcome the tension of the elastic band 10 to pull the top of the rubber limiting rod 11 out of the insertion hole 20 at the bottom of the connecting rod 13. At this time, pull the two connecting rods 13. The two connecting rods 13 drive the corresponding sliding discs 15 to slide in the corresponding limiting grooves 17. The sliding of the two sliding discs 15 will compress the corresponding springs 14. The movement of the sliding discs 15 will drive the locking block 19 to move, so that the locking block 19 slides out of the corresponding slot 18, releasing the locking and fixing of the plug 12. The plug 12 is slidably connected in the slot 21 on one side of the sliding plate 8. At this time, the plug 12 together with the nozzle structure 9 installed on it can be taken out from the slot 21 for replacement.

[0055] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A thermal inkjet printer with easy printhead replacement, characterized in that, include: A conveyor platform (1) and a support platform (2), wherein the support platform (2) is fixedly connected to the bottom of the conveyor platform (1); The nozzle replacement structure is located on the support platform (2); The nozzle replacement structure includes two electric telescopic rods (4), a lifting frame (5), a threaded rod (7) and a sliding plate (8). The two electric telescopic rods (4) are installed on the top of the support platform (2). The telescopic ends of the two electric telescopic rods (4) are fixedly connected to the lifting frame (5). The threaded rod (7) is rotatably connected inside the lifting frame (5). The stepper motor (6) is installed on one side of the lifting frame (5). The output end of the stepper motor (6) rotatably extends into the interior of the lifting frame (5) and is fixedly connected to the threaded rod (7). Among them, the sliding plate (8) is threaded onto the outer surface of the threaded rod (7), the sliding plate (8) is slidably connected to the inner top wall of the lifting frame (5), a slot (21) is provided on one side of the sliding plate (8), and a limit groove (17) is provided on both sides of the sliding plate (8). A plug (12) is slidably connected inside the slot (21), and a slot (18) is provided on both sides of the plug (12).

2. The thermal inkjet printer with easy printhead replacement according to claim 1, characterized in that: The nozzle replacement structure also includes two sliding discs (15), which are slidably connected to the interior of the corresponding limiting groove (17). The opposite surfaces of the two sliding discs (15) are fixedly connected with locking blocks (19). The ends of the two locking blocks (19) away from the corresponding sliding discs (15) are slidably extended into the interior of the slot (21) and engaged with the corresponding slot (18). Among them, the two sliding discs (15) are respectively fixedly connected to the side away from the corresponding card block (19) with connecting rods (13), and the ends of the two connecting rods (13) away from the sliding discs (15) are slidably extended to the outside of the corresponding limiting groove (17). The outside of the two connecting rods (13) are respectively sleeved with springs (14), and the bottom of the sliding plate (8) has two limiting through holes (16). Among them, the two limiting through holes (16) are both fitted with rubber limiting rods (11) with interference fit, and the bottom of the two connecting rods (13) is provided with insertion holes (20). The top of the two rubber limiting rods (11) are respectively inserted into the corresponding insertion holes (20).

3. A thermal inkjet printer with easy printhead replacement according to claim 1, characterized in that: The nozzle structure (9) is installed on the side of the insert (12) away from the sliding plate (8).

4. A thermal inkjet printer with easy printhead replacement according to claim 2, characterized in that: One end of each of the two springs (14) is fixedly connected to the corresponding sliding disk (15), and the ends of the two springs (14) away from the corresponding sliding disk (15) are fixedly connected to the inner wall of the corresponding limiting groove (17).

5. A thermal inkjet printer with easy printhead replacement according to claim 2, characterized in that: The bottom ends of the two rubber limiting rods (11) are respectively fixedly connected to elastic bands (10), and the ends of the two elastic bands (10) away from the corresponding rubber limiting rods (11) are respectively fixedly connected to the bottom of the sliding plate (8).

6. A thermal inkjet printer with easy printhead replacement according to claim 2, characterized in that: Both of the card blocks (19) are trapezoidal structures.

7. A thermal inkjet printer with easy printhead replacement according to claim 1, characterized in that: A controller (3) is installed on the top of the support platform (2).

8. A thermal inkjet printer with easy printhead replacement according to claim 3, characterized in that: A photoelectric sensor is installed on the side of the sliding plate (8) away from the nozzle structure (9).

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