High-speed printing platform applied to jet printing machine

Abstract

The utility model relates to the field of jet printing equipment, in particular to a high-speed printing platform applied to a jet printing machine, which comprises a lower bottom plate, an upper top plate and a stand column, and the lower bottom plate is provided with a first edge pressing structure, a second edge pressing structure, a third edge pressing structure and a fourth edge pressing structure. The four edge pressing structures each comprise a lifting assembly and an edge pressing block located above the upper top plate, the edge pressing blocks are connected with the lifting assemblies through edge pressing connecting columns penetrating through the upper top plate, and the four edge pressing blocks form a rectangle after extending. The utility model aims to provide the high-speed printing platform applied to the jet printing machine, and after innovation and improvement, the whole edge is pressed, so that the edge or corner of a workpiece plate can be prevented from warping to a great extent, and the risk of collision with a spray head is reduced.

Description

Technical Field

[0001] This utility model relates to the field of inkjet printing equipment, and in particular to a high-speed printing platform for use in inkjet printers. Background Technology

[0002] Traditional printing platform four-sided pressure plate devices are mostly designed to press the edges of the workpiece individually and at intervals to make it flush with the platform below, preventing the workpiece edges or corners from lifting. However, due to the varying sizes of workpieces, some workpiece corners cannot be pressed down, posing a risk of lifting. This could lead to the platform colliding with the expensive printing nozzle above when it moves. Utility Model Content

[0003] The purpose of this invention is to provide a high-speed printing platform for inkjet printers. After innovative improvement, the entire edge is pressed down, which can greatly prevent the edges or corners of the workpiece from lifting and reduce the risk of collision with the printhead.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-speed printing platform for inkjet printers, comprising a lower base plate, an upper top plate, and columns. The lower base plate is provided with a first edge pressing structure, a second edge pressing structure, a third edge pressing structure, and a fourth edge pressing structure. Each of the four edge pressing structures includes a lifting assembly and an edge pressing block located above the upper top plate. The edge pressing block is connected to the lifting assembly through an edge pressing connecting column penetrating the upper top plate, and the four edge pressing blocks, when extended, form a rectangle.

[0005] Preferably, the lifting assembly of the first pressing structure is installed on the lower base plate and is supported by a fixed cylinder for horizontal pushing. The lifting assemblies of the other three pressing structures are installed on the adjusting slide rails provided on the lower base plate. The lower base plate is provided with an adjusting drive structure that moves the lifting assemblies on the adjusting slide rails. The upper top plate is provided with pressing adjustment grooves that cooperate with the pressing connecting columns of the three pressing structures. The horizontal projection direction of the pressing adjustment grooves and adjusting slide rails of the same pressing structure is consistent and perpendicular to the horizontal projection of the pressing block.

[0006] Preferably, the lifting assembly includes a pressing seat, on which one or two pressing lifting cylinders are provided. The pressing lifting cylinders are connected to the pressing lifting seat, and the pressing connecting column is provided on the pressing lifting seat. The pressing lifting seat is slidably engaged with the lifting slide rail provided on the pressing seat.

[0007] Preferably, the adjustment drive structure includes a belt transmission structure disposed on the lower base plate, the belt movement direction of the belt transmission structure is parallel to the adjustment slide rail, the lower part of the lifting component is provided with an adjustment slider that cooperates with the adjustment slide rail, and the lifting component is provided with a clamping block for clamping the belt of the belt transmission structure.

[0008] Preferably, the inner side of the belt in the belt transmission structure is serrated, and the belt clamping block includes two blocks, upper and lower, with a serrated groove on the upper side of the lower block that matches the serrated shape of the belt.

[0009] Preferably, the two ends of the column that connect to the lower base plate and the upper top plate are respectively internal threads and external threads, and one end of the external thread is fitted with a nut for adjusting the distance between it and the lower base plate or the upper top plate.

[0010] The technical effects of this utility model are as follows:

[0011] 1. The edge pressing block holds the entire edge of the workpiece in place, which greatly prevents the edges or corners of the workpiece from warping and reduces the risk of collision with the nozzle. Furthermore, the positions of the edge pressing blocks of the second, third, and fourth edge pressing devices are adjustable, making them suitable for a wider range of workpiece sizes, including both large and small workpieces.

[0012] 2. Conventional designs of the four-sided pressure plate device of the printing platform use multiple cylinders for independent lifting. Due to differences in the length of the air path or the air pressure, asynchronous lifting is prone to occur. In high-speed printing, this often causes the platform to collide with the printhead above and damage each other. This utility model is modified to use only one or two cylinders combined with a guide shaft to control the vertical lifting of the entire side.

[0013] 3. In this utility model, the column connecting the top plate and the bottom plate is innovatively redesigned to have an external thread at one end and an internal thread at the other. The external thread end can be connected with a nut to adjust the height, thereby ensuring that the top plate of the printing platform is nearly parallel to the printing nozzle above. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a high-speed printing platform used in inkjet printers.

[0015] Figure 2 This is a three-dimensional schematic diagram of the third pressure edge structure.

[0016] Figure 3 This is a first-person perspective 3D schematic diagram of the lifting assembly.

[0017] Figure 4 This is a three-dimensional schematic diagram of the lifting assembly from a second perspective.

[0018] Figure 5 for Figure 4 A magnified view of part A in the image.

[0019] The text labels in the diagram represent: 1. Lower base plate; 2. Upper top plate; 3. Column; 4. Nut; 5. First pressing edge structure; 6. Second pressing edge structure; 7. Third pressing edge structure; 8. Fourth pressing edge structure; 9. Pressing edge adjustment groove; 11. Adjusting slide rail; 12. Adjusting slider; 13. Pressing edge seat; 14. Pressing edge lifting cylinder; 15. Pressing edge lifting seat; 16. Pressing edge connecting column; 17. Pressing edge block; 18. Lifting slide rail; 19. Clamping block; 20. Belt transmission structure. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0021] like Figure 1 and Figure 3-4 As shown, the technical solution of this utility model is: a high-speed printing platform for inkjet printers, including a lower base plate 1, an upper top plate 2 and a column 3. The lower base plate 1 is provided with a first edge pressing structure 5, a second edge pressing structure 6, a third edge pressing structure 7 and a fourth edge pressing structure 8. Each of the four edge pressing structures includes a lifting component and an edge pressing block 17 located above the upper top plate 2. The edge pressing block 17 is connected to the lifting component through an edge pressing connecting column 16 that penetrates the upper top plate 2, and the four edge pressing blocks 17 form a rectangle after being extended.

[0022] The specific operation is as follows: Place the workpiece to be printed on the top plate 2, and then the four lifting components of the four edge pressing structures drive the four edge pressing blocks 17 to descend. Then, the edge pressing blocks 17 press down the corresponding edge of the workpiece as a whole, so that it is close to the top plate 2. Compared with the existing structure of pressing the edge of the workpiece in a single interval, it can effectively avoid the problem of the edge of the workpiece lifting due to a single pressing.

[0023] like Figure 1-2 As shown, the lifting assembly of the first pressing structure is installed on the lower base plate 1 and is supported by a fixed cylinder for horizontal pushing. The lifting assemblies of the other three pressing structures are installed on the adjusting slide rail 11 provided on the lower base plate 1. The lower base plate 1 is provided with an adjusting drive structure that moves the lifting assembly on the adjusting slide rail 11. The upper top plate 2 is provided with pressing adjustment grooves 9 that cooperate with the pressing connecting columns 16 of the three pressing structures. The pressing adjustment grooves 9 of the same pressing structure and the adjusting slide rail 11 have the same horizontal projection direction and are perpendicular to the horizontal projection of the pressing block 17.

[0024] PCB board specifications are not fixed and there are usually multiple specifications. Therefore, the printing platform needs to accommodate workpieces of various specifications. This application uses the first pressing structure as the reference and the other three pressing structures move towards it. In order to facilitate the placement of the workpiece, the first pressing structure also needs to be translated. Generally, it is pushed by a fixed cylinder. The other three pressing structures can move. Through the design of the pressing adjustment groove 9, it is ensured that the movement of the pressing block 17 will not interfere with the upper top plate 2. The specific adjustment is achieved by adjusting the drive structure to drive the lifting component to move as a whole along the adjustment slide rail 11. The pressing connecting column 16 will move in the corresponding pressing adjustment groove 9. In this way, the pressing block 17 above the upper top plate 2 can move accordingly.

[0025] like Figure 3-5 As shown, the lifting assembly includes a pressing seat 13, on which one or two pressing lifting cylinders 14 are provided. The pressing lifting cylinders 14 are connected to a pressing lifting seat 15. A pressing connecting column 16 is provided on the pressing lifting seat 15. The pressing lifting seat 15 is slidably engaged with the lifting slide rail 18 provided on the pressing seat 13.

[0026] When multiple cylinders control the lifting, the cylinder coordination is required. This application adopts an integrated pressing structure, which generally only requires one or two cylinders to control the pressing block to press down on the entire edge of the workpiece, reducing the difficulty of coordination. At the same time, during the lifting process of the pressing lifting seat 15, it needs to cooperate with the lifting slide rail 18. This can further avoid the situation where the pressing lifting seat 19 tilts due to the lack of coordination between the two cylinders (there are generally at least two lifting slide rails 18. If the pressing lifting seat 19 tilts, it cannot be lifted).

[0027] like Figure 2 and Figure 5 As shown, the adjustment drive structure includes a belt transmission structure 20 mounted on the lower base plate 1. The belt movement direction of the belt transmission structure 20 is parallel to the adjustment slide rail 11. The lower part of the lifting assembly is provided with an adjustment slider 12 that cooperates with the adjustment slide rail 11. The lifting assembly is also provided with a clamping block 19 for clamping the belt of the belt transmission structure 20. The inner side of the belt of the belt transmission structure 20 is serrated (the corresponding transmission wheel is generally a toothed wheel, which makes it easier to control the belt transmission and reduces the relative slippage between the belt and the transmission wheel). The clamping block 19 includes two blocks, upper and lower. The upper side of the lower block is provided with a serrated groove that cooperates with the serrated shape of the belt.

[0028] First, the clamping block 19 needs to clamp the belt. Specifically, the serrated part of the belt engages with the serrated groove on the clamping block. Then, the upper and lower blocks of the clamping block 19 are locked. In this way, the clamping block 19 will move with the belt. With the sliding cooperation design of the adjusting slide rail 11 and the adjusting slider 12, the entire lifting assembly can slide on the adjusting slide rail 11 with the belt.

[0029] like Figure 1 As shown, the two ends of the column 3 that connect to the lower base plate 1 and the upper top plate 2 are respectively internal threads and external threads. One end of the external thread is fitted with a nut 4 for adjusting its distance from the lower base plate 1 or the upper top plate 2.

[0030] The upper top plate 2 and the lower bottom plate 1 of the printing platform are connected by a column or plate. However, due to the processing tolerance or assembly tolerance of the components, the upper top plate and the upper printhead may not be parallel, which will result in unqualified printing quality (because of the production process requirements, the printhead needs to be printed close to the PCB, and the height control is relatively strict). The structural design of this application, through the matching design of the nut 4 and the external thread of the column 3, can adjust the depth of the column 3 inserted into the lower bottom plate 1 or the upper top plate 2 by turning the nut 4. In this way, the effective height of the column can be adjusted, thereby adjusting the height of the upper top plate 2 relative to the lower bottom plate 1, so as to ensure that the upper top plate 2 of the printing platform is nearly parallel to the upper printhead.

[0031] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A high-speed printing platform for an inkjet printer, comprising a lower base plate (1), an upper top plate (2), and a column (3), characterized in that, The lower base plate (1) is provided with a first pressing edge structure (5), a second pressing edge structure (6), a third pressing edge structure (7) and a fourth pressing edge structure (8). Each of the four pressing edge structures includes a lifting component and a pressing edge block (17) located above the upper top plate (2). The pressing edge block (17) is connected to the lifting component through a pressing edge connecting column (16) that penetrates the upper top plate (2), and the four pressing edge blocks (17) are extended to form a rectangle.

2. The high-speed printing platform for an inkjet printer according to claim 1, characterized in that, The lifting assembly of the first pressing structure is installed on the lower base plate (1) and is supported by a fixed cylinder for horizontal pushing. The lifting assemblies of the other three pressing structures are installed on the adjusting slide rail (11) provided on the lower base plate (1). The lower base plate (1) is provided with an adjusting drive structure that moves the lifting assembly on the adjusting slide rail (11). The upper top plate (2) is provided with pressing adjustment grooves (9) that cooperate with the pressing connecting columns (16) of the three pressing structures. The horizontal projection direction of the pressing adjustment groove (9) and the adjusting slide rail (11) of the same pressing structure is consistent and perpendicular to the horizontal projection of the pressing block (17).

3. A high-speed printing platform for an inkjet printer according to claim 1 or 2, characterized in that, The lifting assembly includes a pressing seat (13), on which one or two pressing lifting cylinders (14) are provided. The pressing lifting cylinders (14) are connected to a pressing lifting seat (15). A pressing connecting column (16) is provided on the pressing lifting seat (15). The pressing lifting seat (15) and the lifting slide rail (18) provided on the pressing seat (13) are in sliding cooperation.

4. A high-speed printing platform for an inkjet printer according to claim 2, characterized in that, The adjustment drive structure includes a belt transmission structure (20) set on the lower base plate (1). The belt movement direction of the belt transmission structure (20) is parallel to the adjustment slide rail (11). The lower part of the lifting component is provided with an adjustment slider (12) that cooperates with the adjustment slide rail (11), and the lifting component is provided with a clamping block (19) for clamping the belt of the belt transmission structure (20).

5. A high-speed printing platform for an inkjet printer according to claim 4, characterized in that, The inner side of the belt of the belt transmission structure (20) is serrated, and the belt clamping block (19) includes two blocks, upper and lower, with a serrated groove on the upper side of the lower block that matches the serrated shape of the belt.

6. A high-speed printing platform for an inkjet printer according to claim 1, characterized in that, The two ends of the column (3) connected to the lower base plate (1) and the upper top plate (2) are respectively internal thread and external thread, and one end of the external thread is fitted with a nut (4) for adjusting its distance from the lower base plate (1) or the upper top plate (2).

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