A printing platform and a printing device

Abstract

The utility model relates to a kind of printing platform and printing equipment, and printing platform includes rack, suction platform being set on the rack, and the web belt conveying component for conveying printing material, the web belt conveying component includes driving roller and driven roller being arranged in the width direction both sides of the suction platform in parallel, annular web belt being sleeved between the driving roller and driven roller, and the deviation rectifying unit for preventing annular web belt deviation, the suction platform is located in the annular region of the annular web belt, and the top surface of the suction platform is contacted with the annular web belt, negative pressure is generated by the suction platform to make printing material adhere to the load-bearing surface of the annular web belt.The printing platform and printing equipment designed by the utility model can improve the stability of soft film printing material transmission, improve printing precision and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, and in particular to a printing platform and printing equipment. Background Technology

[0002] In the field of industrial printing, the printing platform, as a core device, plays a crucial role in maintaining the stability of the printing material and assisting in its stable transport during the printing process. Especially in high-speed printing, flexible printing materials (such as paper, film, or fabric) are prone to shifting, warping, or jittering during transport on the printing platform. This not only reduces printing accuracy but can also lead to material waste and decreased production efficiency. Therefore, improving the stability of flexible printing material transport on the printing platform is a key measure to enhance both printing accuracy and efficiency. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this invention is to design a printing platform and printing equipment that can improve the stability of soft film printing material transmission and enhance printing accuracy and efficiency.

[0004] The objective of this utility model is achieved through the following technical solution: Design a printing platform including a frame, a suction platform mounted on the frame, and a conveyor belt assembly for conveying printing material. The conveyor belt assembly includes a drive roller and a driven roller arranged parallel to each other on both sides of the suction platform in the width direction, an annular conveyor belt sleeved between the drive roller and the driven roller, and a correction unit for preventing the annular conveyor belt from deviating. The suction platform is located within the area surrounding the annular conveyor belt, and the top surface of the suction platform is in contact with the annular conveyor belt. The suction platform generates negative pressure to make the printing material adhere tightly to the bearing surface of the annular conveyor belt.

[0005] In this solution, the printing platform integrates the negative pressure adsorption of the suction platform and the belt conveyor correction function, improving printing stability and ensuring high-precision printing, making it suitable for diverse industrial printing scenarios. Specifically, the negative pressure generated by the suction platform through the small holes of the annular belt ensures that the soft film printing material adheres tightly to the bearing surface of the annular belt, avoiding problems such as displacement, warping, or wrinkling during printing, while also avoiding the local deformation problems caused by traditional mechanical fixing. The annular belt is equipped with a correction unit to correct the conveyor trajectory in real time, preventing printing misalignment caused by the annular belt deviation.

[0006] Furthermore, the correction unit includes side guide wheels symmetrically arranged on both sides of the annular mesh belt, the side walls of the side guide wheels are provided with annular grooves, and the side edges of the annular mesh belt extend into the annular grooves.

[0007] In this solution, side guide wheels are installed on both sides of the annular mesh belt. The side guide wheels are made of polyurethane or nylon. The distance between the side wall of the annular groove and the side of the annular mesh belt does not exceed 1mm. When the mesh belt deviates, the side guide wheels contact the edge of the annular mesh belt to generate lateral friction, and the contact friction automatically pushes the annular mesh belt back to the correct position.

[0008] Furthermore, two side guide wheels are provided on each side of the mesh belt.

[0009] In this scheme, two spaced side guide wheels are set on each side of the mesh belt. The two side guide wheels are symmetrically distributed on the non-load-bearing surface of the ring mesh belt in the direction perpendicular to the conveying direction, forming a multi-point limit, which corrects the deviation trend of the ring mesh belt caused by inertia or uneven load in real time, and further improves the anti-deviation ability.

[0010] Furthermore, the correction unit also includes mounting bases corresponding to the side guide wheels. The mounting base includes a base plate fixed on the frame and a connecting plate movably mounted on the base plate. The side guide wheels are rotatably mounted on the connecting plate.

[0011] In this design, the base plate is fixed to the frame with bolts or clips, and the side guide wheels are mounted on the connecting plate via bearings. The base plate has two oblong holes, and the connecting plate has adjusting bolts that mate with the oblong holes, which can precisely control the gap between the side guide wheels and the annular mesh belt.

[0012] Furthermore, the correction unit is located below the suction platform.

[0013] In this solution, the correction unit is located below the suction platform, that is, the side guide wheel cooperates with the side edge of the non-load-bearing surface of the annular mesh belt, which can avoid spatial interference with the nozzles and other components above the suction platform.

[0014] Furthermore, two mounting side plates are arranged opposite each other on the frame, and the two ends of the driven roller are slidably mounted on the corresponding mounting side plates.

[0015] In this design, two mounting side plates are arranged opposite each other on the frame, and the driven rollers can be slidably mounted at both ends. The structural flexibility improves the equipment's adaptability, ease of operation, and operational stability.

[0016] Furthermore, a sliding hole is provided on the mounting side plate, and a bearing seat embedded in the sliding hole is sleeved on the end of the driven roller. An adjusting screw is threadedly connected to the mounting side plate, and one end of the adjusting screw is rotatably connected to the bearing seat. Rotating the adjusting screw can drive the bearing seat to slide in the sliding hole.

[0017] In this design, a long, narrow sliding hole is provided in the mounting side plate. The bearing seat at the end of the driven roller is embedded in the hole to form a sliding pair. One end of the adjusting screw is connected to the bearing seat, and the other end passes through the mounting side plate. By rotating the screw, the bearing seat is pushed to move along the sliding hole, thereby precisely adjusting the distance between the driven roller and the driving roller. This allows for the adjustment of the tension and looseness of the annular mesh belt, ensuring smooth conveying. Simultaneously, the threaded pair between the adjusting screw and the nut has a self-locking effect, fixing the bearing seat position without additional locking components and resisting displacement caused by vibration.

[0018] Furthermore, an outer baffle is slidably provided on the side wall of the mounting side plate, the outer baffle abuts against the bearing seat, and the side wall of the mounting side plate is provided with scale lines along the moving direction of the bearing seat, with the edge of the outer baffle aligned with the reference line of the scale lines.

[0019] In this design, the outer baffle is slidably installed on the side wall of the mounting plate, forming a mechanical limit by abutting against the bearing seat. The scale lines on its surface directly indicate the position of the bearing seat, improving the convenience of adjustment.

[0020] Furthermore, two pressure strips for pressing the printing material are movably disposed above the annular mesh belt.

[0021] In this solution, the positions of the two edge-pressing strips are adjusted according to the size of the printing material so that they can press firmly against the edges of the printing material on both sides. This, combined with the negative pressure of the suction platform, forms a coordinated fixation of the material by pressing down from above and suctioning down from below, further improving the stability of the printing material on the annular mesh belt.

[0022] Based on the same concept, a printing device was also designed, including the aforementioned printing platform.

[0023] Compared with the prior art, the beneficial effects of this utility model are: In this solution, the printing platform integrates the negative pressure adsorption of the suction platform and the belt conveyor correction function, improving printing stability and ensuring high-precision printing, making it suitable for diverse industrial printing scenarios. Specifically, the negative pressure generated by the suction platform through the small holes of the annular belt ensures that the soft film printing material adheres tightly to the bearing surface of the annular belt, avoiding problems such as displacement, warping, or wrinkling during printing, while also avoiding the local deformation problems caused by traditional mechanical fixing. The annular belt is equipped with a correction unit to correct the conveyor trajectory in real time, preventing printing misalignment caused by the annular belt deviation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a printing platform according to an embodiment of the present invention.

[0025] Figure 2 This is a partial cross-sectional schematic diagram of a printing platform according to an embodiment of the present invention.

[0026] Figure 3 for Figure 2 A magnified view of part B in the image.

[0027] Figure 4 This is a partial structural diagram of the mounting side plate according to an embodiment of the present invention.

[0028] Figure 5 This is a schematic diagram of the structure of a printing device according to an embodiment of the present invention.

[0029] Illustrations: 1. Frame; 11. Mounting side plate; 111. Sliding hole; 112. Adjusting screw; 113. Scale line; 12. Outer baffle; 2. Mesh belt conveyor assembly; 21. Driving roller; 22. Driven roller; 221. Bearing seat; 23. Annular mesh belt; 3. Suction platform; 4. Correction unit; 41. Side guide wheel; 411. Annular groove; 42. Mounting base; 421. Base plate; 422. Connecting plate; 5. Edge pressing strip.

[0030] A0. Printing platform; A1. Crossbeam; A2. Translation trolley; A3. Receiving mechanism Detailed Implementation

[0031] To facilitate understanding of this invention, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the invention. However, this invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0032] Example 1

[0033] like Figure 1 and Figure 2 As shown, this embodiment provides a printing platform A0, including a frame 1, a suction platform 3 disposed on the frame 1, and a mesh belt conveyor assembly 2 for conveying printing materials. The mesh belt conveyor assembly 2 includes an active roller 21 and a driven roller 22 disposed parallel to both sides of the suction platform 3 in the width direction, an annular mesh belt 23 sleeved between the active roller 21 and the driven roller 22, and a deviation correction unit 4 for preventing the annular mesh belt 23 from deviating. The suction platform 3 is located within the surrounding area of ​​the annular mesh belt 23, and the top surface of the suction platform 3 is in contact with the annular mesh belt 23. The suction platform 3 generates negative pressure to make the printing materials adhere tightly to the bearing surface of the annular mesh belt 23.

[0034] It should be noted that the top surface of the suction platform 3 is arrayed with suction holes. The suction platform 3 is hollow inside and connected to an external fan through pipes. The suction platform 3 is located between the driving roller 21 and the driven roller 22. The length of the suction platform 3 is greater than the width of the annular mesh belt 23, that is, the edges of the suction platform 3 extend beyond the width of the annular mesh belt 23 on both sides, to ensure that the entire bearing surface of the annular mesh belt 23 can generate negative pressure under the action of the suction platform 3.

[0035] Additionally, the mesh belt conveyor assembly 2 also includes a drive unit fixed to the frame 1. The drive unit is located on the side of the drive roller 21 and consists of a servo motor and a reducer. The output shaft of the servo motor is connected to the reducer, and the output shaft of the reducer is connected to the end of the drive roller 21 via a coupling. It should be noted that the surface of the drive roller 21 is covered with a material with a high coefficient of friction, such as rubber, to increase the friction between the drive roller 21 and the annular mesh belt 23, preventing slippage and improving the stability of the conveying process.

[0036] like Figure 2 and Figure 3 As shown, the correction unit 4 includes side guide wheels 41 symmetrically arranged on both sides of the annular mesh belt 23, and mounting seats 42 corresponding to the side guide wheels 41. The mounting seat 42 includes an L-shaped base plate 421 fixed on the frame 1 and a connecting plate 422 movably arranged on the base plate 421. The side guide wheels 41 are rotatably arranged on the connecting plate 422. The side wall of the side guide wheel 41 is provided with an annular groove 411, and the side edge of the annular mesh belt 23 extends into the annular groove 411.

[0037] Side guide wheels 41 are provided on both sides of the annular mesh belt 23. The side guide wheels 41 are made of polyurethane or nylon. The distance between the side wall of the annular groove 411 and the side of the annular mesh belt 23 does not exceed 1mm. When the annular mesh belt 23 deviates, the side guide wheels 41 contact the edge of the annular mesh belt 23 to generate lateral friction, and the contact friction automatically pushes the annular mesh belt 23 back to the correct position.

[0038] The base plate 421 and connecting plate 422 are made of metal, such as stainless steel or aluminum alloy, and are designed in an L-shape. They are fixed to the frame 1 by bolts or clips. The side guide wheel 41 is mounted on the connecting plate 422 via bearings. The base plate 421 has two oblong holes symmetrically arranged on both sides of the side guide wheel 41. The connecting plate 422 has adjusting bolts that mate with the oblong holes, allowing precise control of the gap between the side guide wheel 41 and the annular mesh belt 23. During implementation, first loosen the adjusting bolts to allow the connecting plate to move. Adjust the position of the connecting plate 422 until the distance between the side guide wheel 41 and the side of the annular mesh belt 23 reaches the preset value, then tighten the adjusting bolts to secure the connecting plate 422.

[0039] Additionally, each side of the annular mesh belt 23 is equipped with two spaced side guide wheels 41. These two side guide wheels 41 are symmetrically distributed along the non-load-bearing surface of the annular mesh belt 23 perpendicular to the conveying direction, forming multi-point limiting and correcting the deviation trend of the annular mesh belt 23 caused by inertia or uneven load in real time, further improving its anti-deviation capability. It should be noted that the deviation correction unit 4 is located below the suction platform 3. That is, the side guide wheels 41 cooperate with the side edges of the non-load-bearing surface of the annular mesh belt 23, which can avoid spatial interference with components such as nozzles above the suction platform 3.

[0040] like Figure 2 and Figure 4 As shown, two mounting side plates 11 are arranged opposite each other on the frame 1, and the two ends of the driven roller 22 are slidably mounted on the corresponding mounting side plates 11. The structural flexibility improves the equipment's adaptability, ease of operation, and operational stability. Specifically, the mounting side plates 11 are provided with sliding holes 111, which are elongated or oblong in shape and extend along the direction of printing material transport. The end of the driven roller 22 is fitted with a bearing seat 221 embedded in the sliding hole 111. An adjusting screw 112 is threadedly connected to the mounting side plates 11, and one end of the adjusting screw 112 is rotatably connected to the bearing seat 221. Rotating the adjusting screw 112 can drive the bearing seat 221 to slide within the sliding hole 111. The driven roller 22's end bearing housing 221 is embedded in the hole to form a sliding pair. One end of the adjusting screw 112 is connected to the bearing housing 221, and the other end passes through the mounting side plate 11. By rotating, the bearing housing 221 is pushed to translate along the sliding hole 111, thereby precisely adjusting the distance between the driven roller 22 and the driving roller 21. This achieves tension and looseness adjustment of the annular mesh belt 23, ensuring smooth conveying. At the same time, the threaded pair between the adjusting screw 112 and the nut has a self-locking effect, which can fix the position of the bearing housing 221 without additional locking parts, resisting displacement caused by vibration.

[0041] Furthermore, an outer baffle 12 is slidably mounted on the side wall of the mounting side plate 11. The outer baffle 12 has a rectangular cross-section, and its width is greater than the width of the sliding hole 111. Two oblong holes extending along the printing material conveying direction are opened on the outer baffle 12. The two oblong holes are located on both sides of the width direction of the sliding hole 111, and are fixed to the mounting side plate 11 by bolts passing through the oblong holes. The outer baffle 12 abuts against the bearing seat 221. The side wall of the mounting side plate 11 is provided with scale lines 113 along the moving direction of the bearing seat 221, and the edge of the outer baffle 12 is aligned with the reference line of the scale lines 113. The outer baffle 12 is slidably mounted on the side wall of the mounting side plate 11, forming a mechanical limit by abutting against the bearing seat 221. The scale lines on its surface directly indicate the position of the bearing seat 221, improving the convenience of adjustment. During adjustment, loosen the adjusting screw of the outer baffle 12 to allow it to move smoothly. Rotate the adjusting screw 112 to drive the bearing seat 221 to move along the sliding hole 111, and at the same time push the outer baffle 12 to move. By observing the position of the outer baffle 12 on the scale line 113, the position of the bearing seat 221 can be determined. Based on this, the uniformity of the positions of the two ends of the driven roller 22 can be ensured, thereby ensuring the parallelism between the driven roller 22 and the driving roller 21.

[0042] It should be noted that, since the outer baffle 12 is not fixed to the bearing housing 221, when the bearing housing 221 is adjusted away from the drive roller 21, the outer baffle 12 moves accordingly; when the bearing housing 221 is adjusted towards the drive roller 21, the outer baffle 12 does not move accordingly and requires external force. Therefore, in another embodiment, the bearing housing 221 and the outer baffle 12 can be fixed by bolts or other fasteners, thereby enabling synchronous movement of the two.

[0043] like Figure 1 As shown, two edge-pressing strips 5 are movably mounted above the annular mesh belt 23 for pressing the printing material. A crossbeam is mounted above the printing platform A0, and the edge-pressing strips 5 are movably mounted on the crossbeam. The positions of the two edge-pressing strips 5 are adjusted according to the size of the printing material so that they can press against the edges of the printing material on both sides. This, combined with the negative pressure of the suction platform 3, forms a coordinated fixation of the material by pressing down from above and suction down from below, further improving the stability of the printing material on the annular mesh belt 23.

[0044] In this embodiment, the printing platform A0 integrates the negative pressure adsorption of the suction platform 3 and the belt conveyor correction function, improving printing stability and ensuring high-precision printing, making it suitable for diverse industrial printing scenarios. Specifically, the negative pressure generated by the suction platform 3 through the small holes of the annular belt 23 ensures that the soft film printing material adheres tightly to the bearing surface of the annular belt 23, avoiding problems such as displacement, warping, or wrinkling during printing, and also avoiding local deformation problems caused by traditional mechanical fixing. The annular belt 23 is equipped with a correction unit 4 to correct the conveying trajectory in real time, preventing printing misalignment caused by the offset of the annular belt 23. Example 2

[0045] This embodiment provides a printing device, including a printing platform A0 as described in Embodiment 1. A crossbeam A1 is erected above the printing platform A0 along its length. A translation carriage A2 is movably mounted on the crossbeam A1 via guide rails. The translation carriage A2 carries an ink nozzle, which is positioned directly opposite the printing platform A0. The translation carriage A2 drives the ink nozzle to move along the length of the printing platform A0 to print the material on the printing platform A0. It should be noted that the printer of this embodiment is suitable for printing on flexible film materials, such as poster film, lightbox fabric, wall coverings, wallpaper, etc.

[0046] Additionally, the printing equipment has a feeding mechanism (not shown in the figure) at the feeding end and a receiving mechanism A3 at the discharging end. The feeding mechanism includes a roll material fixing assembly and several conveying rollers. The height of the receiving mechanism A3 is lower than the height of the printing platform A0, and includes the receiving rollers. The feeding mechanism ensures uniform feeding of the soft printing material, and works in conjunction with the receiving mechanism A3 at the discharging end to achieve uniform conveying of the soft printing material. It should be noted that existing technologies can be used for the feeding mechanism and the receiving mechanism A3, and will not be elaborated further here.

[0047] In addition, in this embodiment, the printer also includes a control system, which is an automated management hub integrating hardware and software. Through real-time monitoring, data analysis, and dynamic adjustment, it ensures printing accuracy, efficiency, and stability. The control system controls the coordination of various mechanical actions of the printer and processes various sensor signals. It employs an embedded industrial-grade controller and is equipped with a touchscreen for interaction. It should be noted that existing technology can be used for the control system, and further details will not be elaborated upon here.

[0048] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 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.

[0049] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, the inclusion of "first," "second," etc., in a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A printing platform, characterized in that, The device includes a frame, a suction platform mounted on the frame, and a conveyor belt assembly for conveying printing material. The conveyor belt assembly includes a drive roller and a driven roller arranged parallel to each other on both sides of the suction platform in the width direction, an annular conveyor belt sleeved between the drive roller and the driven roller, and a correction unit for preventing the annular conveyor belt from deviating. The suction platform is located within the area surrounding the annular conveyor belt, and the top surface of the suction platform is in contact with the annular conveyor belt. The suction platform generates negative pressure to make the printing material adhere tightly to the bearing surface of the annular conveyor belt.

2. The printing platform according to claim 1, characterized in that, The correction unit includes side guide wheels symmetrically arranged on both sides of the annular mesh belt. The side walls of the side guide wheels are provided with annular grooves, and the side edges of the annular mesh belt extend into the annular grooves.

3. The printing platform according to claim 2, characterized in that, Two side guide wheels are provided on each side of the mesh belt.

4. The printing platform according to claim 3, characterized in that, The correction unit also includes mounting bases corresponding to the side guide wheels. Each mounting base includes a base plate fixed to the frame and a connecting plate movably mounted on the base plate. The side guide wheels are rotatably mounted on the connecting plate.

5. The printing platform according to claim 4, characterized in that, The correction unit is located below the suction platform.

6. The printing platform according to claim 1, characterized in that, The frame has two mounting side plates arranged opposite each other, and the two ends of the driven roller are slidably mounted on the corresponding mounting side plates.

7. The printing platform according to claim 6, characterized in that, The mounting side plate has a sliding hole, and the end of the driven roller is fitted with a bearing seat that is embedded in the sliding hole. An adjusting screw is threadedly connected to the mounting side plate, and one end of the adjusting screw is rotatably connected to the bearing seat. Rotating the adjusting screw can drive the bearing seat to slide in the sliding hole.

8. The printing platform according to claim 7, characterized in that, An outer baffle is slidably provided on the side wall of the mounting side plate. The outer baffle abuts against the bearing seat. The side wall of the mounting side plate is provided with scale lines along the moving direction of the bearing seat. The edge of the outer baffle is aligned with the reference line of the scale lines.

9. The printing platform according to claim 1, characterized in that, Two pressure strips for pressing the printing material are movably disposed above the annular mesh belt.

10. A printing device, characterized in that, Includes the printing platform as described in any one of claims 1 to 9.

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