A paper handling apparatus for a printer

Abstract

The utility model provides a paper processing equipment for printer, paper processing equipment includes drying device and adsorption device, adsorption device includes respectively front and rear setting's front guide plate and rear guide plate, be located in the printing platform between front guide plate and rear guide plate, be located in the first side plate and second side plate of printing platform left and right sides, the printing platform downside forms the negative pressure chamber, first fan is installed in the negative pressure chamber, the surface of printing platform is provided with a plurality of first vent, be provided with second vent on first side plate and second side plate, first fan is used for the airflow through second vent enters negative pressure chamber and is discharged through first fan, makes first vent place form adsorption, drying device is located in the front side position of adsorption device, and is located the upside of paper, from upside drying paper.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, and more specifically, to a paper handling device for a printer. Background Technology

[0002] The description in this section provides only background information related to the disclosure of this utility model and does not constitute prior art.

[0003] In the label printing field, two significant problems are frequently encountered: first, label materials (especially thin or synthetic paper materials) warp and curl during printing due to uneven paper feed and printhead heating; second, the ink on the printed ribbon is not fully cured, making it prone to smudging and sticking during winding or stacking, resulting in unusable prints. Existing label printing technologies have significant shortcomings in terms of print flatness and ink curing, lacking an integrated solution that can simultaneously address label warping and ink smudging during the printing process without sacrificing efficiency.

[0004] Therefore, there is a need to invent an integrated paper processing device that combines paper flattening and drying / curing in a continuous process, so as to efficiently produce printed materials with high flatness and good curing effect in a compact space.

[0005] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to provide a paper handling device for a printer.

[0007] To solve the above-mentioned technical problems, this utility model provides a paper handling device for a printer. The paper handling device includes a drying device and an adsorption device. The adsorption device includes a front guide plate and a rear guide plate respectively arranged front and rear, a printing platform located between the front guide plate and the rear guide plate, and a first side plate and a second side plate located on the left and right sides of the printing platform. A negative pressure chamber is formed on the lower side of the printing platform. A first fan is installed in the negative pressure chamber. A plurality of first ventilation holes are provided on the surface of the printing platform. Second ventilation holes are provided on the first side plate and the second side plate. The first fan is used to guide airflow into the negative pressure chamber through the second ventilation holes and discharge it through the first fan, so that an adsorption force is formed at the first ventilation holes. The drying device is located in front of the adsorption device and above the paper, drying the paper from the top. The paper to be printed passes sequentially through the front guide plate, the printing platform, the rear guide plate, and the lower side of the drying device.

[0008] Preferably, a paper feed shaft is installed between the rear guide plate and the printing platform. The two ends of the paper feed shaft are rotatably mounted on the suction device. The paper feed shaft rotates under the drive of a drive motor to control the paper to move forward.

[0009] Preferably, the rear end of the front guide plate is smoothly connected to the front end of the printing platform, and together they form a horizontal reference plane. The front guide plate bends downward from the connection point to form a transition arc surface for guiding the paper. The front end of the rear guide plate is smoothly connected to the rear end of the printing platform, and together they form a horizontal reference plane. The rear guide plate bends downward from the connection point to form a transition arc surface for guiding the paper.

[0010] Preferably, the drying device includes an outer cover and a mounting box installed at the bottom of the outer cover. A second fan is installed inside the outer cover, and a heating element is installed at the bottom of the mounting box. The second fan can transfer the heat from the heating element to the upper surface of the paper.

[0011] Preferably, the mounting box is a trapezoidal structure with an opening at the bottom, the heating element is installed inside the mounting box, the front and rear edges of the mounting box are embedded into the outer cover from bottom to top, there is a gap between the front and rear edges of the mounting box and the inner wall of the outer cover, and the second fan blows air downward through the gap.

[0012] Preferably, the mounting box includes a trapezoidal box body with an opening facing downwards, and connectors are fixedly connected to the left and right sides of the trapezoidal box body, the connectors including an outwardly bent lower folded edge, and corresponding upper folded edges are provided on the left and right sides of the outer cover, the upper folded edges being fixedly connected to the corresponding lower folded edges.

[0013] Preferably, the top of the outer cover has multiple third ventilation holes.

[0014] Based on the above technical solution, the beneficial effects of this utility model are as follows:

[0015] This invention relates to a paper handling device for printers. By integrating an adsorption device and a drying device into one unit, the device can first use negative pressure adsorption to effectively eliminate warping and wrinkles in the paper caused by printing heat and transportation during the continuous paper feeding process, keeping the paper flat. Then, the drying device solidifies the printed content, improving the flatness and image quality of the printed products. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the paper processing equipment of this utility model.

[0017] Figure 2 This is a schematic diagram of the adsorption device of this utility model.

[0018] Figure 3 This is a schematic diagram of the adsorption device of this utility model.

[0019] Figure 4 This is a partial structural schematic diagram of the adsorption device of this utility model.

[0020] Figure 5 This is a schematic diagram of the drying device of this utility model.

[0021] Figure 6 This is an exploded structural diagram of the drying device of this utility model.

[0022] Figure 7 This is a schematic diagram of the drying device of this utility model.

[0023] The components include: 1. Adsorption device; 2. Drying device; 21. Front guide plate; 22. Rear guide plate; 23. Printing platform; 24. First side plate; 25. Second side plate; 3. Paper feed shaft; 4. First fan; 11. Outer cover; 111. Third ventilation hole; 12. Mounting box; 5. Second fan; 6. Gap; 112. Upper folded edge; 121. Lower folded edge; 122. Trapezoidal box body. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] As shown in the figure, this utility model provides a paper processing device for a printer. The paper processing device includes a drying device 2 and an adsorption device 1. The adsorption device 1 includes a front guide plate 21 and a rear guide plate 22 respectively arranged front and rear, a printing platform 23 located between the front guide plate 21 and the rear guide plate 22, and a first side plate 24 and a second side plate 25 located on the left and right sides of the printing platform 23. A negative pressure chamber is formed on the lower side of the printing platform 23. A first fan 4 is installed in the negative pressure chamber. A plurality of first ventilation holes are provided on the surface of the printing platform 23. Second ventilation holes are provided on the first side plate 24 and the second side plate 25. The first fan 4 is used to guide airflow into the negative pressure chamber through the second ventilation holes and discharge it through the second ventilation holes, so that an adsorption force is formed at the first ventilation holes. The drying device 2 is located in front of the adsorption device 1 and above the paper, drying the paper from the top. The paper to be printed passes sequentially through the front guide plate 21, the printing platform 23, the rear guide plate 22, and the lower side of the drying device 2. This paper processing equipment integrates the adsorption device 1 and the drying device 2 into one unit. During the continuous paper feeding process, the equipment first uses negative pressure adsorption to effectively eliminate the warping and wrinkles of the paper caused by printing heat and feeding, keeping it flat. Then, the drying device 2 solidifies the printed content, improving the flatness and image quality of the printed products.

[0027] Multiple first ventilation holes are evenly arranged on the printing platform 23. The coordinated design of the negative pressure chamber and the first fan 4 allows air to enter through the second ventilation holes and form a uniform and stable adsorption force through the first ventilation holes. This enables paper of different materials and weights to be tightly adsorbed onto the surface of the printing platform 23, effectively preventing paper slippage, deviation, or curling during high-speed printing. In addition, the drying device 2 is located in front of the adsorption device 1, which can perform targeted drying on the printed paper. This layout allows printed materials that are still in the flat stage to be dried immediately. At the same time, since the paper has been adsorbed and flattened, the distance between its upper surface and the drying device 2 remains stable, ensuring the uniformity of the hot air effect and avoiding paper jams or contamination caused by paper shaking or curling and touching the heating components.

[0028] A paper feed shaft 3 is installed between the rear guide plate 22 and the printing platform 23. Both ends of the paper feed shaft 3 are rotatably mounted on the suction device 1. The paper feed shaft 3 rotates under the drive of a drive motor to control the forward movement of the paper. The rear end of the front guide plate 21 is smoothly connected to the front end of the printing platform 23, forming a horizontal reference plane. The front guide plate 21 bends downwards from this connection point to form a transition arc surface for guiding the paper. The front end of the rear guide plate 22 is smoothly connected to the rear end of the printing platform 23, forming a horizontal reference plane. The rear guide plate 22 bends downwards from this connection point to form a transition arc surface for guiding the paper.

[0029] like Figure 5-7As shown, the drying device 2 includes an outer cover 11 and a mounting box 12 installed at the bottom of the outer cover 11. A second fan 5 is installed inside the outer cover 11, and a heating element is installed at the bottom of the mounting box 12. The second fan 5 can transfer the heat from the heating element to the upper surface of the paper. In a preferred embodiment, the mounting box 12 is a trapezoidal structure with an open bottom, and the trapezoidal structure is smaller at the bottom and larger at the top, so that the air duct gradually narrows from top to bottom. The heating element is installed inside the mounting box 12, and the front and rear edges of the mounting box 12 are embedded into the outer cover 11 from bottom to top. There is a gap 6 between the front and rear edges of the mounting box 12 and the inner wall of the outer cover 11. The gap 6 is a long strip structure along the left and right direction, perpendicular to the forward direction of the paper. The second fan 5 blows air downward through the gap 6. The mounting box 12 includes a trapezoidal box body 122 with an opening facing downwards. Connectors are fixedly connected to the left and right sides of the trapezoidal box body 122, each connector including an outwardly bent lower folded edge 121. Corresponding upper folded edges 112 are provided on the left and right sides of the outer cover 11, and the upper folded edges 112 are fixedly connected to the corresponding lower folded edges 121. Multiple third ventilation holes 111 are provided on the top of the outer cover 11. The airflow generated by the second fan 5 is focused and accelerated by the trapezoidal air duct, and then blown out from the bottom gap 6 at a higher speed and greater pressure, accelerating the evaporation of moisture and the curing of ink. Because the gap 6 is a long strip structure perpendicular to the forward direction of the paper, the entire surface of the label paper can be dried uniformly, preventing localized insufficient or excessive drying and significantly improving the drying quality.

[0030] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A paper handling device for a printer, characterized in that, The paper processing equipment includes a drying device and an adsorption device. The adsorption device includes a front guide plate and a rear guide plate respectively arranged at the front and rear, a printing platform located between the front guide plate and the rear guide plate, and a first side plate and a second side plate located on the left and right sides of the printing platform. A negative pressure chamber is formed on the lower side of the printing platform, and a first fan is installed inside the negative pressure chamber. Multiple first ventilation holes are provided on the surface of the printing platform, and second ventilation holes are provided on the first and second side plates. The first fan is used to direct airflow through the second ventilation holes into the negative pressure chamber and then discharge it, creating an adsorption force at the first ventilation holes. The drying device is located in front of the adsorption device and above the paper. The paper is dried from above. The printed paper passes through the front guide plate, the printing platform, and the rear guide plate in sequence, and then passes under the drying device.

2. The paper processing equipment according to claim 1, characterized in that, A paper feed shaft is installed between the rear guide plate and the printing platform. The two ends of the paper feed shaft are rotatably mounted on the suction device. The paper feed shaft rotates under the drive of a drive motor to control the paper to move forward.

3. The paper processing equipment according to claim 1, characterized in that, The rear end of the front guide plate is smoothly connected to the front end of the printing platform, and together they form a horizontal reference plane. The front guide plate bends downward from the connection point to form a transition arc surface for guiding the paper. The front end of the rear guide plate is smoothly connected to the rear end of the printing platform, and together they form a horizontal reference plane. The rear guide plate bends downward from the connection point to form a transition arc surface for guiding the paper.

4. The paper processing equipment according to claim 1, characterized in that, The drying device includes an outer cover and a mounting box installed at the bottom of the outer cover. A second fan is installed inside the outer cover, and a heating element is installed at the bottom of the mounting box. The second fan can transfer the heat from the heating element to the upper surface of the paper.

5. The paper processing equipment according to claim 4, characterized in that, The mounting box is a trapezoidal structure with an opening at the bottom. The heating element is installed inside the mounting box. The front and rear edges of the mounting box are embedded into the outer cover from bottom to top. There is a gap between the front and rear edges of the mounting box and the inner wall of the outer cover. The second fan blows air downward through the gap.

6. The paper processing equipment according to claim 5, characterized in that, The mounting box includes a trapezoidal box body with an opening facing downwards. Connectors are fixedly connected to the left and right sides of the trapezoidal box body. Each connector includes a downward folded edge that bends outwards. The left and right sides of the outer cover are respectively provided with corresponding upward folded edges. The upward folded edges are fixedly connected to the corresponding downward folded edges.

7. The paper processing equipment according to claim 6, characterized in that, The top of the outer cover has multiple third ventilation holes.

Images