A digital printing machine nozzle adjusting mechanism

Abstract

The utility model relates to digital printing machine nozzle technical field, concretely relates to a digital printing machine nozzle adjusting mechanism, including nozzle dolly and set in the middle part of the bottom end of nozzle dolly and print structure, the bottom of nozzle dolly both ends are provided with the powder scattering structure, the powder scattering structure includes the rack fixed in the nozzle dolly and the movable assembly fixed in the rack outside, the movable assembly includes the outer frame of the sleeve setting in the rack outside and the drive motor of the sleeve setting in the inner side of outer frame, the outside fixed location frame of outer frame, the middle part of location frame is fixed with the powder scattering head sleeve, the output of drive motor is connected with gear transmission, and the gear keeps engagement with the rack, fixes and sets up with the powder scattering head and location frame, realizes the function of combination cabinet, the drive motor structure in movable assembly, can drive two sets of gear under the control of outside, since it keeps engagement with the rack, so the powder scattering head and location frame structure can move left and right along the rack, realizes the function of position initiative adjustment.

Description

Technical Field

[0001] This utility model relates to the field of printhead technology for digital printing machines, and specifically to a printhead adjustment mechanism for digital printing machines. Background Technology

[0002] Digital inkjet printers are high-tech digital printing equipment that uses inkjet printing without physical contact. Therefore, they are not limited by any material and can perform color photo-quality printing on surfaces such as wood, glass, crystal, metal plates, floor tiles, ceramic tiles, CDs, acrylic, plexiglass, EVA / KT boards, leather, silicone, plastics, PP, PE, PVC, fabrics, self-adhesive labels, and stone.

[0003] The existing powdering process cannot be directly achieved using digital printing presses. In order to add more visual effects to the printed pattern while reproducing the true colors of the object, the current conventional approach is to use ordinary printing presses to make plates and then use transfer (heat transfer and hot stamping) equipment or powdering equipment to achieve the purpose of increasing the visual effects of the printing process through multiple machines. Although this can increase the special effects of the printed pattern, the disadvantages are also obvious. It is impossible to achieve repeated positioning of multiple machines for all soft materials and irregularly sized and shaped substrates, which cannot meet the printing needs of most products.

[0004] Currently, the distance between the printhead base plate and the printing material in digital printing presses frequently needs adjustment. To accommodate materials of different lengths, existing technology adjusts the gap between the printhead and the material surface by replacing limit blocks. The disadvantage of this technology is that multiple limit blocks of different specifications need to be prepared, and the replacement time is relatively long. This goes against the machine's emphasis on a flexible and agile production method that does not require plate making. In addition, even slight changes in the gap between the printhead and the paper surface can affect the final printing effect. Utility Model Content

[0005] Technical problems to be solved

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a digital printing press printhead adjustment mechanism, which can effectively solve the problems in the existing technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] This utility model provides a printhead adjustment mechanism for a digital printing machine, including a printhead carriage and a printing structure disposed at the bottom center of the printhead carriage. The printhead carriage has powder-spreading structures at both its front and rear ends. Each powder-spreading structure includes a rack fixed inside the printhead carriage and a movable component fixed outside the rack. The movable component includes an outer frame sleeved outside the rack and a drive motor sleeved inside the outer frame. A positioning frame is fixed to the outer side of the outer frame, and the middle of the positioning frame is sleeved and fixed to the powder-spreading head. The output end of the drive motor is connected to a gear transmission, and the gear meshes with the rack.

[0009] Furthermore, the positioning frame includes a discontinuous hollow frame and a locking shaft disposed within the frame. The frame has a groove at its discontinuity, and the locking shaft is sleeved within the groove. Nut structures are engaged and fixed on both sides of the locking shaft.

[0010] Furthermore, the outer frame is fixedly connected to one side of the connecting plate, and the outer frame is a combination structure of two sets of L-shaped plates.

[0011] Furthermore, two sets of gears are arranged opposite each other at the upper and lower ends of the drive motor, and the drive motor has a dual output shaft structure at both the upper and lower ends, with the middle part of the gears movably mounted on the side wall of the outer frame.

[0012] Furthermore, the rack includes an I-beam and a toothed structure fixed to the front end of the I-beam. Sliding grooves are provided at both the upper and lower ends of the I-beam, and the outer structure of the outer frame is engaged in the sliding grooves.

[0013] Furthermore, the powder-sprinkling head has a spindle shape with thicker sides and a thinner middle, and the outer side of the frame is fixedly connected to the connecting plate.

[0014] The technical solution provided by this utility model has the following advantages compared with the known public technology:

[0015] This invention utilizes a powder-spraying structure to first securely engage the powder-spraying head with the positioning frame. The user places the powder-spraying head within the hollow positioning frame and tightens the frame's internal space using a locking shaft and nut, thus securing the powder-spraying head and positioning frame together. This achieves the function of a modular unit. The drive motor within the movable component can be externally controlled to rotate two sets of gears. Because it meshes with a rack and pinion, the powder-spraying head and positioning frame can move left and right along the rack, enabling active position adjustment. By integrating the powder-spraying mechanism with the printing component, it achieves integrated powder spraying and digital printing, not only ensuring better printing results but also simplifying the printing process. Furthermore, since it eliminates the need for repeated positioning, it can be applied to the printing of various products. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the powder-sprinkling structure of this utility model;

[0019] Figure 3 This is a structural exploded view of the powder-spreading structure of this utility model;

[0020] Figure 4 This is an exploded view of the powder-spraying head, positioning frame, and movable components of this utility model.

[0021] The labels in the diagram represent: 1. Printhead carriage; 2. Printing structure; 3. Powder dispensing structure; 31. Rack; 311. I-beam; 312. Slide; 313. Gear structure; 32. Positioning frame; 321. Frame; 322. Locking shaft; 323. Connecting plate; 33. Powder dispensing head; 34. Moving component; 341. Outer frame; 342. Drive motor; 343. Gear. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] The present invention will be further described below with reference to the embodiments.

[0024] Example: A printhead adjustment mechanism for a digital printing press, as shown in the attached document. Figure 1 -Appendix Figure 4The device includes a printhead carriage 1 and a printing structure 2 located at the bottom center of the printhead carriage 1. The printhead carriage 1 has powder-spreading structures 3 at both its front and rear ends. Each powder-spreading structure 3 includes a rack 31 fixed inside the printhead carriage 1 and a movable component 34 fixed outside the rack 31. The movable component 34 includes an outer frame 341 sleeved outside the rack 31 and a drive motor 342 sleeved inside the outer frame 341. A positioning frame 32 is fixed to the outer side of the outer frame 341, and the middle of the positioning frame 32 is sleeved and fixed to the powder-spreading head 33. The output end of the drive motor 342 is connected to a gear 343, and the gear 343 meshes with the rack 31.

[0025] The positioning frame 32 includes a discontinuous hollow frame 321 and a locking shaft 322 disposed within the frame 321. The frame 321 has grooves at its discontinuities, and the locking shaft 322 is fitted into these grooves. Nut structures are engaged and fixed on both sides of the locking shaft 322. The rack 31 includes an I-beam 311 and a toothed structure 313 fixed to the front end of the I-beam 311. Sliding grooves 312 are provided at both the upper and lower ends of the I-beam 311, and the outer structure of the outer frame 341 is engaged within the sliding grooves 312. The powder-sprinkling head 33 is spindle-shaped, thicker at both sides and thinner in the middle. The outer side of the frame 321 is connected to the connecting plate. 323 Fixed connection; Through the powder-spraying structure 3, the powder-spraying head 33 and the positioning frame 32 can be fixedly locked. The user locks the powder-spraying head 33 in the hollow positioning frame 32 and tightens the internal space of the positioning frame 32 by locking the shaft 322 and the nut, thus fixing the powder-spraying head 33 and the positioning frame 32, realizing the function of the combination cabinet. The drive motor 342 structure in the movable component 34 can drive the upper and lower gears 343 to rotate under external control. Since it is engaged with the rack 31, the powder-spraying head 33 and the positioning frame 32 structure can move left and right along the rack 31, realizing the function of active position adjustment.

[0026] Furthermore, during the movement, the sliding groove 312 structure on the outer side of the rack 31 structure can contact the outer frame 341 structure, which can restrict the position of the outer frame 341 during the movement to prevent it from tilting and shaking. The length and position of the rack 31 can be selected and fixed on the inner side of the nozzle carriage 1 as needed to meet the on-site usage requirements.

[0027] The outer frame 341 is fixedly connected to one side of the connecting plate 323. The outer frame 341 is a combination structure of two sets of L-shaped plates. Two sets of gears 343 are arranged opposite each other at the upper and lower ends of the drive motor 342. The drive motor 342 has a dual output shaft structure at both ends, and the middle part of the gears 343 is movably disposed on the side wall of the outer frame 341. The powder-spraying mechanism, combined with the inkjet printing component, completes the integration of powder spraying and digital printing, which not only better ensures the printing effect of the product but also simplifies the printing process. Furthermore, because it does not require repeated positioning, it can be applied to the printing of various products.

[0028] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A printhead adjustment mechanism for a digital printing press, characterized in that, The device includes a printhead carriage (1) and a printing structure (2) located at the bottom center of the printhead carriage (1). The printhead carriage (1) has powder-spreading structures (3) at both the front and rear ends of the bottom. The powder-spreading structure (3) includes a rack (31) fixed inside the printhead carriage (1) and a movable component (34) fixed outside the rack (31). The movable component (34) includes an outer frame (341) sleeved outside the rack (31) and a drive motor (342) sleeved inside the outer frame (341). A positioning frame (32) is fixed outside the outer frame (341). The middle part of the positioning frame (32) is sleeved and fixed to the powder-spreading head (33). The output end of the drive motor (342) is connected to the gear (343) for transmission, and the gear (343) is meshed with the rack (31).

2. The printhead adjustment mechanism for a digital printing machine according to claim 1, characterized in that, The positioning frame (32) includes a discontinuous hollow frame (321) and a locking shaft (322) disposed in the frame (321). The frame (321) has a groove at its discontinuity, and the locking shaft (322) is sleeved in the groove. Both sides of the locking shaft (322) are engaged and fixed with nut structures.

3. The printhead adjustment mechanism for a digital printing machine according to claim 2, characterized in that, The outer frame (341) is fixedly connected to one side of the connecting plate (323), and the outer frame (341) is a combination structure of two sets of L-shaped plates.

4. The printhead adjustment mechanism for a digital printing machine according to claim 1, characterized in that, Two sets of gears (343) are arranged opposite each other at the upper and lower ends of the drive motor (342), and the drive motor (342) has a double output shaft structure at both the upper and lower ends, and the middle part of the gears (343) is movably arranged on the side wall of the outer frame (341).

5. The printhead adjustment mechanism for a digital printing machine according to claim 4, characterized in that, The rack (31) includes an I-beam (311) and a tooth structure (313) fixed to the front end of the I-beam (311). The upper and lower ends of the I-beam (311) are provided with sliding grooves (312), and the outer structure of the outer frame (341) is fitted into the sliding grooves (312).

6. The printhead adjustment mechanism for a digital printing machine according to claim 2, characterized in that, The powder-sprinkling head (33) is spindle-shaped with thicker sides and thinner middle, and the outer side of the frame (321) is fixedly connected to the connecting plate (323).

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