A wide-format printer for automatically loading printing roll paper

Abstract

The present invention provides a wide-format printer for automatically loading printing roll paper, which relates to the technical field of printing devices. It includes a base, on which there is a printing roll paper installation area. In the printing roll paper installation area, there is a support device for fixing the printing roll paper. The support device includes two support arm mechanisms that can move relative to each other, and a support shaft for supporting the printing roll paper is provided on the support arm mechanism. It also includes a positioning structure that can automatically position the printing roll paper when it is placed in the roll paper installation area, and a correction structure that can automatically correct the support position and keep the printing roll paper in a suspended state when the printing roll paper is supported by the support device. When the printing roll paper is supported and installed, the correction structure can automatically correct the support position and place the paper roll approximately in a suspended state to finely adjust the position of the roll paper at the installation location, keep a certain distance between the roll paper and the roll paper installation area, and the positioned and installed roll paper is in a relatively suspended state, reducing the resistance during paper roll transportation and facilitating the user to simply and quickly achieve the accurate installation of the paper roll.

Description

Technical Field

[0001] The present invention relates to the technical field of printing devices, and more particularly to a wide-format printer for automatically loading printing roll paper. Background Art

[0002] During the printing process, there is often a need to print relatively wide printing materials, so a wide-format printer has emerged to print printing materials with a relatively wide size. The wide-format printer needs to adapt to paper rolls of various widths. To ensure the printing quality and accurate printing position, it is crucial to ensure that the paper roll is centered and the paper roll is relatively parallel to the print head. The paper roll is a printing consumable and needs to be frequently installed and disassembled, so the quick and accurate installation of the paper roll is of utmost importance.

[0003] In the prior art, the installation of the paper roll requires the user to hold the paper roll and manually align the axis of the paper roll support. The installation is difficult and time-consuming. Moreover, as disclosed in Chinese Patent CN207901886U, "A Wide-format Thermal Transfer Printer", through the setting of the dynamic installation part and the static installation part, the installation and disassembly of the ribbon supply cylinder can be facilitated, thereby improving work efficiency. And the sliding connection between the installation seat and the chute can adjust the distance between the installation chucks to install consumables of different widths. Although it solves the problems of cumbersome installation and time consumption caused by the way of manually holding the paper roll, it lacks the positioning of the roll paper during the installation process, which easily leads to problems such as misalignment of the paper roll installation, resulting in inaccurate installation and further affecting the printing accuracy. Summary of the Invention

[0004] The present invention discloses a wide-format printer for automatically loading printing roll paper, aiming to improve problems such as inaccurate installation and positioning of the paper roll in existing printers.

[0005] The present invention adopts the following solutions:

[0006] A wide-format printer for automatically loading printing roll paper includes a base. A printing roll paper installation area is provided on the base. A support device for fixing the printing roll paper is provided in the printing roll paper installation area. The support device includes two support arm mechanisms that can move relative to each other. A support shaft for supporting the printing roll paper is provided on the support arm mechanism. It also includes a positioning structure for automatically positioning the printing roll paper when it is placed in the roll paper installation area and a correction structure for automatically correcting the support position and keeping the printing roll paper in a suspended state when the printing roll paper is supported by the support device.

[0007] As a further improvement, the positioning structure includes an inclined plane for allowing the printing roll paper to roll in a first direction, and a limiting surface provided on the low-end side of the inclined plane for restricting the movement of the printing roll paper.

[0008] As a further improvement, a rear wall is provided on the base, and a limiting rod is provided on the rear wall. The limiting surface is provided on the limiting rod.

[0009] As a further improvement, the correction structure includes a conical surface provided on the support shaft, and a support hole cooperating with the conical surface is provided on the printing roll paper. When the support device clamps the printing roll paper, the printing roll paper leaves the inclined surface and the limiting surface and is in a suspended state.

[0010] As a further improvement, it further includes a support plate, and the inclined surface is provided on the support plate; the support device includes a transmission mechanism, and the transmission mechanism is provided below the support plate and drives at least one of the support arm mechanisms to move in the second direction to fixedly support or release the printing roll paper.

[0011] As a further improvement, the transmission mechanism is a screw drive mechanism, and the two support arm mechanisms approach or move away from each other under the drive of the screw.

[0012] As a further improvement, it further includes a paper roll core, and the printing roll paper is installed on the paper roll core. After the paper roll core rolls on the inclined surface, it is placed and positioned under the action of the limiting surface to facilitate the support device to clamp and fix it.

[0013] As a further improvement, the paper roll core includes mounting discs installed at the left and right ends of the printing roll paper, and support holes cooperating with the support shaft are provided on the mounting discs.

[0014] As a further improvement, the positioning structure is a positioning arc groove, and the positioning arc groove is provided on the support plate to realize the positioning before the printing roll paper is clamped.

[0015] As a further improvement, it further includes a monitoring component, and the monitoring component includes a label module for obtaining information of the printing roll paper.

[0016] By adopting the above technical solutions, the present invention can achieve the following technical effects:

[0017] For the wide-format printer of the present application, the support arm mechanism of the support device is used to support and install the printing roll paper, and a positioning structure is provided so that the printing roll paper can be automatically positioned to the installation position, thereby accurately placing the printing roll paper. And when the printing roll paper is supported and installed, the correction structure can automatically correct the support position and place the printing paper roll in a substantially suspended state to finely adjust the position of the roll paper at the installation position, maintaining a certain distance between the roll paper and the roll paper installation area, realizing the automatic loading of the printing roll paper, and the positioned and installed roll paper is in a relatively suspended state, reducing the resistance during the paper roll transportation, and at the same time facilitating the user to simply and quickly achieve the accurate installation of the paper roll. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the attached drawings required for the embodiments. It should be understood that the following attached drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related attached drawings can also be obtained based on these attached drawings.

[0019] Figure 1 It is a schematic structural diagram of a wide-format printer according to an embodiment of the present invention, where the printer upper cover is in a closed state;

[0020] Figure 2 It is a schematic structural diagram of a wide-format printer according to an embodiment of the present invention from a first perspective, where the printer upper cover is in an open state;

[0021] Figure 3 is Figure 2 a schematic structural diagram from another perspective, where the support arm mechanism is in a state of not supporting the installation of the printing roll paper;

[0022] Figure 4 It is a sectional view of a wide-format printer according to an embodiment of the present invention along a second direction;

[0023] Figure 5 It is a sectional view of a wide-format printer according to an embodiment of the present invention along a first direction;

[0024] Figure 6 is Figure 4 a sectional view from other perspectives, where the support arm mechanism is in a state of supporting the installation of the printing roll paper;

[0025] Figure 7 is Figure 6 a sectional view of the support arm mechanism in the state of not supporting the installation of the printing roll paper in ;

[0026] Figure 8 is Figure 7 a sectional view from other perspectives;

[0027] Figure 9 is a partial sectional schematic diagram of a wide-format printer according to an embodiment of the present invention from a second perspective.

[0028] Icon: 1 - base; 11 - roll paper installation area; 12 - rear wall; 13 - limiting rod; 14 - support plate; 2 - support device; 21 - support arm mechanism; 22 - support shaft; 23 - transmission mechanism; 3 - positioning structure; 31 - inclined surface; 32 - limiting surface; 4 - calibration structure; 41 - conical surface; 5 - paper roll core; 51 - mounting disc; 511 - support hole; 6 - printing device; 7 - ribbon device; A - printing roll paper. Specific embodiments

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plural" means two or more, unless otherwise specifically defined.

[0032] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present invention, unless otherwise clearly specified or limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include indirect contact between the first and second features through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0034] Embodiment

[0035] Combination Figures 1 to 9 , this embodiment provides a wide-format printer for automatically loading printing roll paper, including a base 1. Among them, a printing roll paper installation area 11 is provided on the base 1, and a support device 2 for fixing the printing roll paper A is provided in the printing roll paper installation area 11. The support device 2 includes two support arm mechanisms 21 that can move relative to each other. A support shaft 22 for supporting the printing roll paper A is provided on the support arm mechanism 21. Through the relative movement between the two support arm mechanisms 21 of the support device 2, the support shaft 22 configured by the support arm mechanism 21 supports and installs the printing roll paper A, thereby achieving the loading of the printing roll paper A.

[0036] In this embodiment, it further includes a positioning structure 3 for automatically positioning the printing roll paper A when it is placed in the roll paper installation area 11 and a correction structure 4 for automatically correcting the support position and keeping the printing roll paper A in a suspended state when the printing roll paper A is supported by the support device 2. Among them, the positioning structure 3 enables the printing roll paper A to be automatically positioned at the installation position to be installed, so as to accurately place the printing roll paper A. It should be noted that the position of the printing roll paper A at the installation position to be installed after positioning is different from the support position after support installation. Through the correction structure 4, when the support device 2 supports and installs the printing roll paper A, the support position of the printing roll paper A is automatically corrected, so as to finely adjust the support position of the printing roll paper A after installation, so as to keep a certain distance between the printing roll paper A after installation and the roll paper installation area 11, achieve the automatic loading of the printing roll paper A, and the printed roll paper A after positioning and installation is in a relatively suspended state, reducing the resistance during paper roll transportation.

[0037] Specifically, the positioning structure 3 includes an inclined surface 31 that allows the print paper roll A to roll in the first direction X, and a limiting surface 32 located at the lower end of the inclined surface 31 to restrict the movement of the print paper roll A. In this embodiment, the base 1 is provided with a rear wall 12, on which a limiting rod 13 is disposed, and the limiting surface 32 is disposed on the limiting rod 13. The limiting rod 13 is disposed transversely on the rear wall 12, and the limiting surface 32 is located at the outer end of the limiting rod 13. The base 1 also includes a support plate 14, on which the inclined surface 31 is disposed. The support plate 14 is disposed generally transversely within the paper roll installation area 11, and the inclined surface 31 disposed on the support plate 14 is tilted downward in the first direction X. Together with the limiting surface 32 disposed on the limiting rod 13 on the rear wall 12 of the base 1, the positioning structure 3 is formed to automatically position the print paper roll A placed in the paper roll installation area 11, thereby confining the print paper roll A to the position to be installed. The printing roll paper A placed in the roll paper installation area 11 moves along the inclined surface 31 by its own weight until it is restrained by the limiting surface 32 and is in the ready-to-install position opposite to the supporting device 2 .

[0038] See also Figures 4 to 8 The support device 2 also includes a transmission mechanism 23. The transmission mechanism 23 is arranged below the support plate 14 and drives at least one support arm mechanism 21 to move in the second direction Y to fix, support or release the printing roll A. The second direction Y is perpendicular to the first direction X, and the limit rod 13 is horizontally arranged on the rear wall 12 along the second direction Y. It should be mentioned that the printing roll A is relatively positioned above the support plate 14, and the support plate 14 is correspondingly provided with an avoidance groove (not shown) that allows the support arm mechanism 21 to move along the second direction Y under the drive of the transmission mechanism 23, so that the transmission mechanism 23 located below the support plate 14 can drive the support arm mechanism 21 vertically set up in the printing paper installation area to move back and forth relatively along the second direction Y, thereby fixing the printing roll A to achieve support installation or releasing the printing roll A to replace printing consumables.

[0039] Preferably, the transmission mechanism 23 is a screw transmission mechanism 23, and the two support arm mechanisms 21 are relatively moved closer or farther away under the drive of the screw. In this embodiment, the screw transmission mechanism 23 is preferably a bidirectional screw, and the bidirectional screw rotates relative to each other under the drive of an external drive motor, so that the support arm mechanisms 21 respectively arranged on both sides of the bidirectional screw are closer to or farther away from each other along the second direction Y. Through the forward and reverse rotation of the bidirectional screw, the support arm mechanisms 21 are driven to move synchronously toward or away from each other, thereby achieving the centering and fixing of the printing roll A. It should be mentioned that the transmission mechanism 23 can also be a rotating bidirectional screw that drives the rail slides respectively arranged on both sides of the bidirectional screw to move synchronously through a connecting pin, thereby causing the support arm mechanisms 21 respectively arranged on the slides to move synchronously. This will not be repeated here.

[0040] See also Figure 4 、Figure 7 and Figure 8 The correction structure 4 includes a tapered surface 41 provided on the support shaft 22, and a support hole 511 is provided on the print paper roll A that mates with the tapered surface 41. When the support device 2 clamps the print paper roll A, the print paper roll A leaves the inclined surface 31 and the limiting surface 32 and becomes suspended in the air. The support arm mechanism 21 of the support device 2 moves relatively close to clamp the print paper roll A. The support shaft 22 disposed on the support arm mechanism 21 abuts against the wall of the support hole 511 corresponding to the print paper roll A via the tapered surface 41, thereby lifting the print paper roll A forward relative to the support shaft 22 until the tapered surface 41 is fully accommodated within the support hole 511. This allows the support shaft 22 and the support hole 511 to be relatively coaxially arranged, maintaining a distance between the print paper roll A and the inclined surface 31 and the limiting surface 32. The print paper roll A is relatively fine-tuned from the installation location to the installation support position, thereby becoming relatively suspended in the air, thereby preventing frictional resistance between the print paper roll A and the limiting surface 32 and the tapered surface 31 during paper transport.

[0041] In this embodiment, a paper roll core 5 is also included. The printing paper roll A is mounted on the paper roll core 5. After rolling on the inclined surface 31, the paper roll core 5 is positioned under the action of the limiting surface 32 to facilitate clamping and fixing by the support device 2. More specifically, the paper roll core 5 includes mounting plates 51 installed and configured at the left and right ends of the printing paper roll A, and support holes 511 that cooperate with the support shaft 22 are provided on the mounting plates 51. The mounting plates 51 are circular and relatively configured on both sides of the paper roll, thereby limiting the position of the paper roll on the paper roll core 5. The circular mounting plates 51 facilitate the paper roll core 5 to drive the paper roll to roll rapidly along the first direction X on the support plate 14 until the printing paper roll A is relatively placed at the location to be installed. When the printing paper roll A is relatively positioned at the installation location, the axial position of the support hole 511 of the mounting plate 51 is relatively staggered with the axial position of the support shaft 22, and the axial position of the support shaft 22 is relatively far away from the limiting surface 32 and the inclined surface 31, so that the relatively staggered support shaft 22 is relatively abutted against the hole wall of the support hole 511 through the tapered surface 41, and the support shaft 22 drives the mounting plate 51 to move in a direction away from the limiting surface 32 and the inclined surface 31, thereby relatively lifting the printing paper roll A on the mounting plate 51 forward, until the tapered surface 41 on the support shaft 22 is completely placed in the support hole 511, and the support shaft 22 and the support hole 511 are in the same axial position. At this time, the printing paper roll A completes the positioning and fine-tuning installation.

[0042] In other embodiments, the positioning structure 3 is a positioning arcuate groove (not shown). The positioning arcuate groove is provided on the support plate 14 to facilitate positioning of the printing paper roll A before clamping. The positioning arcuate groove is adapted to the printing paper roll A. The printing paper roll A placed in the positioning arcuate groove is positioned at the desired installation location, thereby being arranged relative to the support device 2, achieving more efficient positioning and placement.

[0043] Further, it further includes a monitoring component (not shown in the figure). The monitoring component includes a tag module for obtaining information about the printing roll paper. The tag module is preferably an RFID tag, and the RFID tag is fitted and configured at a position on one side close to the printing roll paper A to identify different specifications of the printing roll paper A. Correspondingly, an RFID board for reading the tag information is installed opposite to the RFID tag. Through the mutual pairing of the RFID board and the RFID tag, the information of the printing roll paper A is further read to feedback the information of the printing roll paper A to the printer. When loading the printing roll paper A, the support arm mechanisms 21 move away from each other until they are in the initial position under the drive of the transmission mechanism 23. The printing roll paper A is placed at the installation position in the roll paper installation area 11. At this time, the printer receives the information of the printing roll paper A feedback by the RFID board, so as to determine the specification size of the printing roll paper A to be clamped and installed. Since the distance L between the two support arm mechanisms 21 at the initial position has been determined, the transmission mechanism 23 can be controlled to drive the support arm mechanisms 21 to move synchronously and closer according to the specification D of the placed printing roll paper A, and the distance that each support arm mechanism 21 needs to move is (L - D) / 2, ensuring the accurate clamping of the support arm mechanisms 21. It should be noted that in other embodiments, it may also be that a photoelectric pair sensor is correspondingly configured between the support arm 23 mechanism and the printing roll paper A. Through the photoelectric pair sensor, the distance between the support arm mechanism 23 and the printing roll paper A can be received and feedback in real time, so as to ensure that the movement and clamping of the support arm mechanism 23 are more efficient and accurate.

[0044] It should be mentioned that a printing device 6 and a carbon ribbon device 7 are further provided on the base 1. The carbon ribbon device 7 includes a supply end and a recovery end. The printing carbon ribbon comes out from the supply end, bypasses the printing device 6 and is connected to the recovery end. The printing paper installation area is set relatively far from the printing device 6. Along the printing direction, a support device 2 for fixing the printing roll paper A, a carbon ribbon device 7 and a printing device 6 are arranged in sequence. The printing roll paper A is relatively supported and installed on one side of the base 1 away from the printing direction.

[0045] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention.

Claims

1. A wide-format printer with automatic paper roll loading, comprising a base, a paper roll mounting area provided on the base, a support device for fixing the paper roll within the paper roll mounting area, the support device comprising two relatively movable support arms, the support arm mechanisms being provided with a support shaft for supporting the paper roll, characterized in that: The invention also includes a positioning structure that can automatically position the printing roll paper when it is placed in the paper roll installation area, and a correction structure that can automatically correct the support position and put the printing roll paper in a suspended state when it is supported by the supporting device; the correction structure includes a tapered surface provided on the support shaft, and the printing roll paper is provided with a support hole that cooperates with the tapered surface; when the supporting device clamps the printing roll paper, the printing roll paper leaves the positioning structure and is in a suspended state.

2. The wide format printer according to claim 1, wherein: The positioning structure includes an inclined surface for allowing the printing roll to roll in a first direction, and a limiting surface provided on a lower end side of the inclined surface for limiting the movement of the printing roll.

3. The wide format printer according to claim 2, wherein: The base is provided with a rear wall, the rear wall is provided with a limiting rod, and the limiting surface is provided on the limiting rod.

4. The wide format printer according to claim 2, wherein: It also includes a support plate, and the inclined surface is arranged on the support plate; the support device includes a transmission mechanism, and the transmission mechanism is arranged below the support plate and drives at least one support arm mechanism to move in the second direction to fix, support or release the printing roll paper.

5. The wide format printer according to claim 4, characterized in that: The transmission mechanism is a screw transmission mechanism, and the two support arm mechanisms are relatively moved closer or farther away under the drive of the screw.

6. The wide format printer according to any one of claims 2 to 5, characterized in that: It also includes a paper roll core, on which the printing paper roll is mounted. After the paper roll core rolls on the inclined surface, it is positioned under the action of the limiting surface to facilitate clamping and fixing by the supporting device.

7. The wide format printer according to claim 6, characterized in that: The paper roll core includes mounting plates mounted on the left and right ends of the printing paper roll, and the mounting plates are provided with support holes that cooperate with the support shaft.

8. The wide format printer according to claim 4, wherein: The positioning structure is a positioning arc groove, and the positioning arc groove is arranged on the support plate to achieve positioning of the printing roll paper before clamping.

9. The wide format printer according to claim 1, wherein: It also includes a monitoring component, which includes a label module for obtaining printing roll paper information.

Images