Novel automatic adjusting mechanism for digital ink-jet printing unit

Abstract

The utility model discloses a novel automatic adjusting mechanism for a digital ink-jet printing unit, which belongs to the technical field of ink-jet printing and comprises an ink-jet printing unit structure, a lifting guide rail, a laser range finder, a PLC (programmable logic controller), a position sensor, a brake device and a starting device. The height of the mounting frame and the height of the guide roller matched with the mounting frame are changed along the position adjusting groove through the adjusting rod; the rod head of the adjusting rod is connected with a connector, a hydraulic cylinder connected with the inner supporting plate is arranged at the upper end of the connector, the adjusting rod is controlled by the hydraulic cylinder to move up and down, and automatic adjustment of the guide roller is achieved. A position adjusting groove is formed in the inner supporting plate and matched with an adjusting rod and a fastening nut, the height of the mounting frame and the height of the guide roller are flexibly adjusted, printing media with different thicknesses are adjusted to the optimal printing position in a self-adaptive mode, manual printing medium thickness measuring tests are reduced, and testing efficiency is improved. And the printing unit structure and the optimal jet printing height of the printing head are automatically adjusted according to preset parameters.

Description

Technical Field

[0001] The utility model relates to the technical field of inkjet printing unit adjustment, and particularly to an automatic adjustment mechanism for a new digital inkjet printing unit. Background Technique

[0002] After retrieval, the Chinese patent publication number is CN113650426B, an inkjet printing process and device based on a multi-layer substrate of high-density composite materials, which records the structure of a digital inkjet printing unit: inkjet printing unit structure, lifting guide rail, laser rangefinder, PLC programming controller, position sensing, braking device, starting device, etc.

[0003] The automatic adjustment mechanism of the digital inkjet printing unit integrates cutting-edge technologies, greatly improving the printing accuracy and efficiency. This system cleverly uses sensor and camera technologies to accurately capture the position of the printing medium and immediately adjust the position of the inkjet head to ensure precise alignment of patterns and text. At the same time, it also has the function of automatically cleaning the nozzles, effectively preventing blockages, ensuring smooth ink jetting, and thus maintaining excellent printing quality.

[0004] In addition, this mechanism can automatically monitor and adjust the ink flow rate and pressure, flexibly meet various printing requirements, and ensure consistent colors. It can also intelligently adjust the printing speed according to the characteristics and quality requirements of the printing material to achieve the best printing effect. More importantly, it can automatically adjust the temperature and humidity of the printing environment to minimize the interference of environmental factors on printing quality.

[0005] However, in current digital inkjet printing units, most guide rollers adopt a fixed design, which is ineffective in automatic adjustment. Fixed guide rollers are difficult to adapt to media of different thicknesses and sizes, which may cause problems such as positioning errors and paper feeding jams. At the same time, in the face of diverse job requirements, printing units lacking a flexible adjustment mechanism often require manual intervention, which not only slows down production efficiency but also increases the complexity of operation. Summary of the Utility Model

[0006] The main purpose of the utility model is to provide an automatic adjustment mechanism for a new digital inkjet printing unit, which can effectively solve the problems raised in the background technique.

[0007] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] New digital inkjet printing unit automatic adjustment mechanism, including a bottom box, an upper box body, an inner support plate, an inkjet printing unit structure, a lifting guide rail, a laser rangefinder, a PLC programming controller, a position sensor, a braking device, a starting device, a mounting rack and a guiding roller. The upper box body is located on the bottom box, and the inner support plate is installed inside the upper box body. The inkjet printing unit structure and the guiding roller are installed on the inner support plate through the first mounting rack, the second mounting rack and the support frame. The material is guided through the guiding roller, and then the inkjet printing operation is realized through the inkjet printing unit structure;

[0009] Position adjustment grooves are opened on both sides of the end face of the inner support plate, and the position adjustment grooves are aligned with the mounting holes on the end faces of the first mounting rack and the second mounting rack. An adjustment rod is inserted into the position adjustment groove, and two groups of fastening nuts are sleeved on the adjustment rod. The height of the mounting rack and its adapted guiding roller is changed along the position adjustment groove through the adjustment rod;

[0010] A connecting head is connected to the rod head of the adjustment rod, and a hydraulic cylinder connected to the inner support plate is arranged at the upper end of the connecting head. The hydraulic cylinder controls the up and down movement of the adjustment rod to realize the automatic adjustment of the guiding roller.

[0011] Optionally, a round hole is opened on the end face of the inner support plate, and a fixing rod is inserted into the round hole. A stable connecting piece is arranged between the fixing rod and the adjustment rod to limit the upward movement distance of the adjustment rod through the stable connecting piece;

[0012] Optionally, a plurality of fastening nuts are sleeved on the rod body of the fixing rod, and the fixing rod is fixed on the inner support plate through the fastening nuts. The stable connecting piece is a bendable metal strip. The adjustment rod and the fixing rod pass through the openings of the stable connecting piece and are fixed through the fastening nuts. The up and down telescopic movement of the hydraulic cylinder drives the stable connecting piece to bend to limit the up and down adjustment height of the adjustment rod;

[0013] Optionally, the hydraulic cylinder is fixed on the inner support plate through bolts, and a rubber gasket is arranged between the hydraulic cylinder and the inner support plate. The telescopic end of the hydraulic cylinder and the connecting head are fixed through bolts and nuts, and a nut is arranged at the connection between the connecting head and the adjustment rod;

[0014] Optionally, the fastening nut is a double-nut structure or a nut and anti-slip gasket structure, and an anti-slip rubber strip is adhesively connected to the opening of the inner support plate;

[0015] Optionally, the diameter of the adjustment rod is the same as the width of the position adjustment groove. The first mounting rack and the second mounting rack are designed in an "L" shape, and moving seats are arranged at the four corners of the lower end of the bottom box.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In the present utility model, by providing a position adjustment slot on the inner support plate and cooperating with the use of an adjustment rod and a fastening nut, the height of the mounting bracket and its adapted guiding roller can be easily changed, thereby achieving flexible adjustment of the height. The telescopic end of the hydraulic cylinder pushes the connection head to move up and down, and further drives the adjustment rod to move along the position adjustment slot, realizing automatic height adjustment of the guiding roller, and improving the convenience and efficiency of operation. A rubber gasket is provided between the hydraulic cylinder and the inner support plate, increasing the connection stability and reducing vibration, thereby ensuring the accuracy of the printing operation;

[0018] Adapts to different thicknesses of printing media and adjusts to the optimal printing position, reducing the test of manually measuring the thickness of the printing media, and automatically adjusting the printing unit structure and the optimal printing height of the print head according to preset parameters.

[0019] Through innovative designs such as adding a fixing rod and a stable connection piece, the upward movement distance of the adjustment rod is effectively limited, further enhancing the stability and accuracy of the adjustment. Description of the Drawings

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 is a front view of the overall structure of the present utility model;

[0022] Figure 3 is a display diagram of the inner support plate, guiding roller, and mounting bracket of the present utility model;

[0023] Figure 4 is a display diagram of the inner support plate, position adjustment slot, and hydraulic cylinder of the present utility model;

[0024] Figure 5 is Figure 4 an enlarged schematic diagram at A in

[0025] In the figure: 1, bottom box; 2, moving seat; 3, upper box body; 4, inner support plate; 5, inkjet printing unit structure; 6, first mounting bracket; 7, guiding roller; 8, second mounting bracket; 9, position adjustment slot; 10, hydraulic cylinder; 11, connection head; 12, fixing rod; 13, fastening nut; 14, stable connection piece; 15, adjustment rod. Detailed Embodiments

[0026] To make the technical means, creative features, achieved purposes, and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] Embodiment 1

[0028] As Figures 1 to 5As shown in the figure, we introduce an automatic adjustment mechanism for a new type of digital inkjet printing unit. Its key components include a bottom box 1, an upper box body 3, an inner support plate 4, an inkjet printing unit structure 5, lifting guide rails, a laser rangefinder, a PLC programming controller, position sensors, a braking device, a starting device mounting bracket (specifically, the first mounting bracket 6 and the second mounting bracket 8), a guide roller 7, etc. The upper box body 3 is stably placed on the bottom box 1, and the inner support plate 4 is skillfully installed in the inner space of the upper box body 3. The inkjet printing unit structure 5 and the guide roller 7 are precisely fixed on the inner support plate 4 through carefully designed mounting brackets (i.e., the first mounting bracket 6 and the second mounting bracket 8, and necessary support brackets). This layout enables the material to be smoothly guided through the guide roller 7 and then the precise inkjet printing operation to be completed by the inkjet printing unit structure 5.

[0029] To further improve the flexibility and accuracy of adjustment, position adjustment slots 9 are specifically opened on both side end faces of the inner support plate 4. These position adjustment slots 9 are precisely aligned with the mounting hole positions on the end faces of the first mounting bracket 6 and the second mounting bracket 8, ensuring the stability of the installation. Inside the position adjustment slots 9, adjustment rods 15 are skillfully inserted, and two sets of fastening nuts 13 are sleeved on them. By moving the adjustment rods 15 within the position adjustment slots 9, we can easily change the height of the mounting brackets and the adapted guide roller 7, thereby achieving flexible height adjustment.

[0030] The rod head of the adjustment rod 15 is connected with a connector 11, and the upper end of the connector 11 is connected with a hydraulic cylinder 10. The hydraulic cylinder 10 is firmly fixed on the inner support plate 4 through bolts. A rubber gasket is also skillfully arranged between the hydraulic cylinder 10 and the inner support plate 4 to increase the connection stability and reduce vibration. When the hydraulic cylinder 10 works, its telescopic end will push the connector 11 to move up and down, and then drive the adjustment rod 15 to move along the position adjustment slots 9, thereby realizing the automatic height adjustment of the guide roller 7.

[0031] To ensure the reliability and safety of fastening, we choose fastening nuts 13 with a double-nut structure or a combination of nuts and anti-slip gaskets. At the same time, anti-slip rubber strips are adhesively connected at the openings of the inner support plate 4 to further improve the connection stability.

[0032] In addition, the diameter of the adjustment rod 15 is exactly the same as the width of the position adjustment slots 9, ensuring the smoothness and accuracy of adjustment. The first mounting bracket 6 and the second mounting bracket 8 adopt an innovative "L"-shaped design, which not only improves the overall stability but also makes the installation and adjustment process more convenient. Moving seats 2 are also provided at the four corners of the lower end of the bottom box 1, providing flexible moving ability for the entire mechanism.

[0033] Embodiment 2

[0034] In the second embodiment, we retained all the key components and structural designs in the first embodiment and further optimized and innovated on this basis. In addition to the above-mentioned automatic adjustment mechanism, we also opened a round hole on the end face of the inner support plate 4 and inserted a fixing rod 12 into the round hole. The fixing rod 12 and the adjusting rod 15 are cleverly connected through a stable connecting piece 14. This stable connecting piece 14 is designed with a bendable metal strip, which can effectively limit the upward movement distance of the adjusting rod 15, thereby further improving the stability and accuracy of the adjustment.

[0035] At the same time, a plurality of fastening nuts 13 are sleeved on the rod body of the fixing rod 12, and the fixing rod 12 is firmly fixed on the inner support plate 4 through these fastening nuts 13. When the hydraulic cylinder 10 expands and contracts up and down, it drives the stable connecting piece 14 to perform a bending movement, thereby effectively restricting the up and down adjustment height of the adjusting rod 15. This design not only improves the stability and reliability of the mechanism, but also makes the adjustment process smoother and more stable.

[0036] Based on retaining all the advantages of the first embodiment, the automatic adjustment mechanism of the new digital inkjet printing unit in the second embodiment further improves the stability and accuracy of the adjustment through innovative designs such as adding the fixing rod 12 and the stable connecting piece 14.

[0037] Adjustment process: Before adjustment, check whether the hydraulic cylinder 10 is fixed on the inner support plate 4 and ensure that the connecting head 11 is normally connected to the telescopic end of the hydraulic cylinder 10. Through the telescopic action of the hydraulic cylinder 10, the connecting head 11 is pushed up and down. The movement of the connecting head 11 drives the adjusting rod 15 to move in the position adjustment groove 9. The movement of the adjusting rod 15 changes the height of the mounting brackets (the first mounting bracket 6 and the second mounting bracket 8) and the guiding rollers 7 adapted thereto. Through the movement of the adjusting rod 15, the automatic height adjustment of the guiding rollers 7 is realized to achieve the required printing accuracy.

[0038] During stable limiting: A round hole is opened on the end face of the inner support plate 4 and the fixing rod 12 is inserted. The fixing rod 12 and the adjusting rod 15 are connected through a stable connecting piece 14. The stable connecting piece 14 limits the upward movement distance of the adjusting rod 15 to ensure the stability of the adjustment. A plurality of fastening nuts 13 are sleeved on the rod body of the fixing rod 12, and the fixing rod 12 is fixed on the inner support plate 4 through the fastening nuts 13. The telescopic action of the hydraulic cylinder 10 drives the stable connecting piece 14 to perform a bending movement, realizing an effective restriction on the up and down adjustment height of the adjusting rod 15, and ensuring the smoothness and stability of the adjustment process.

[0039] All the standard parts used in the present utility model can be purchased from the market. The special-shaped parts can be customized according to the descriptions in the specification and the attached drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding, which are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. In addition, the electrofusion connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0040] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A novel digital inkjet printing unit automatic adjustment mechanism, comprising a bottom box (1), an upper box body (3), an inner support plate (4), an inkjet printing unit structure (5), a lifting guide rail, a laser rangefinder, a PLC programming controller, a position sensor, a brake device, a starting device, a mounting frame and a guide roller (7), wherein the upper box body (3) is located on the bottom box (1), and the inner support plate (4) is installed in the upper box body (3), the inkjet printing unit structure (5) and the guide roller (7) are installed on the inner support plate (4) through a first mounting frame (6), a second mounting frame (8) and a support frame, the material is guided by the guide roller (7), and the inkjet printing operation is then realized by the inkjet printing unit structure (5), characterized in that: Position adjustment grooves (9) are provided at both sides of the end surface of the inner support plate (4), and the position adjustment grooves (9) are aligned with the mounting holes on the end surfaces of the first mounting frame (6) and the second mounting frame (8), an adjustment rod (15) is inserted into the position adjustment groove (9), and two sets of fastening nuts (13) are sleeved on the adjustment rod (15), and the height of the mounting frame and its adapted guide roller (7) are changed along the position adjustment groove (9) by the adjustment rod (15); The rod head of the adjustment rod (15) is connected to a connecting head (11), and the upper end of the connecting head (11) is provided with a hydraulic cylinder (10) connected to the inner support plate (4). The adjustment rod (15) is controlled to move up and down by the hydraulic cylinder (10), thereby realizing automatic adjustment of the guide roller (7).

2. The novel automatic adjustment mechanism for digital inkjet printing unit according to claim 1 is characterized in that: A circular hole is formed on the end surface of the inner support plate (4), a fixing rod (12) is inserted into the circular hole, and a stabilizing connecting piece (14) is provided between the fixing rod (12) and the adjusting rod (15), and the upward movement distance of the adjusting rod (15) is limited by the stabilizing connecting piece (14).

3. The novel automatic adjustment mechanism for digital inkjet printing unit according to claim 2 is characterized in that: The rod body of the fixing rod (12) is sleeved with a plurality of fastening nuts (13), and the fixing rod (12) is fixed to the inner support plate (4) by means of the fastening nuts (13); the stabilizing connecting piece (14) is a bendable metal strip; the adjusting rod (15) and the fixing rod (12) pass through an opening of the stabilizing connecting piece (14) and are fixed by means of the fastening nuts (13); the hydraulic cylinder (10) is extended and retracted up and down to drive the stabilizing connecting piece (14) to bend so as to limit the vertical adjustment height of the adjusting rod (15).

4. The novel automatic adjustment mechanism for digital inkjet printing unit according to claim 1 or 3, characterized in that: The hydraulic cylinder (10) is fixed to the inner support plate (4) by means of bolts, and a rubber gasket is provided between the hydraulic cylinder (10) and the inner support plate (4). The telescopic end of the hydraulic cylinder (10) and the connecting head (11) are fixed by means of bolts and nuts, and a nut is provided at the connection between the connecting head (11) and the adjustment rod (15).

5. The novel automatic adjustment mechanism for digital inkjet printing unit according to claim 4 is characterized in that: The fastening nut (13) is a double nut structure or a nut and anti-skid gasket structure, and an anti-skid rubber strip is bonded and connected to the opening of the inner support plate (4).

6. The novel automatic adjustment mechanism for digital inkjet printing unit according to claim 5 is characterized in that: The diameter of the adjustment rod (15) is consistent with the width of the position adjustment slot (9); the first mounting frame (6) and the second mounting frame (8) are designed in an "L" shape; and movable seats (2) are provided at the four corners of the lower end of the bottom box (1).

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