Double-table-board ink jet printer

Abstract

The utility model discloses a double-table-board ink jet printer, which comprises an adsorption platform for adsorbing and fixing a PCB (Printed Circuit Board), and a pressing plate mechanism arranged in an adsorption area of the adsorption platform and used for pressing and fixing the edge of the PCB, the pressing plate mechanism comprises a first pressing plate mechanism arranged along the edge of the adsorption area and a second pressing plate mechanism arranged in the adsorption area, and the first pressing plate mechanism and the second pressing plate mechanism are matched to flatten the edge of the PCB to be tightly attached to the adsorption platform; according to the utility model, the plate pressing mechanism is arranged on the adsorption platform, so that the edge of the PCB can be kept flat and is attached to the adsorption platform, thereby ensuring the jet printing quality.

Description

Technical Field

[0001] The utility model relates to the technical field of inkjet machines, in particular to a double-table inkjet machine. Background Art

[0002] When printing on PCB boards, vacuum adsorption is generally used to fix them. However, the vacuum adsorption method can only keep the position of the PCB board stable on the table, but cannot keep the surface of the board, especially the edge area, flat. The warping and deformation of the edge of the board will affect the overall processing quality of the PCB board. Utility Model Content

[0003] Technical purpose: In view of the shortcomings of the existing PCB board printing processing method, the utility model discloses a double-table inkjet machine that can keep the PCB board in contact with the table, improve the processing efficiency, and realize automatic inkjet processing.

[0004] Technical solution: To achieve the above technical objectives, the utility model adopts the following technical solution:

[0005] A double-table inkjet machine includes an adsorption platform for adsorbing and fixing a PCB board. A pressing plate mechanism for pressing and fixing the edge of the PCB board is arranged in the adsorption area of ​​the adsorption platform. The pressing plate mechanism includes a first pressing plate mechanism arranged along the edge of the adsorption area and a second pressing plate mechanism arranged in the adsorption area. The edge of the PCB board is pressed flat and close to the adsorption platform through the cooperation of the first pressing plate mechanism and the second pressing plate mechanism.

[0006] Preferably, the first pressing plate mechanism of the utility model includes a first pressing plate and a first driving assembly arranged under the first pressing plate, the first driving assembly includes a first lifting cylinder and a horizontal cylinder for driving the first lifting cylinder to translate, the first pressing plate is fixed to the driving end of the first lifting cylinder, the first lifting cylinder is fixed to the first connecting plate and connected to the horizontal cylinder through the first connecting plate, and the first pressing plate is driven by the horizontal cylinder to move back and forth toward the side where the edge of the PCB board is located.

[0007] Preferably, the second pressure plate mechanism of the utility model comprises a second pressure plate, a second lifting cylinder and a screw motor, the second lifting cylinder is connected to the moving end of the screw motor through a second connecting plate, and the second pressure plate is fixed to the driving end of the second lifting cylinder.

[0008] Preferably, a through slot for the driving ends of the first lifting cylinder and the second lifting cylinder to pass through is provided on the adsorption platform of the utility model, and the length of the through slot matches the corresponding horizontal movement adjustment range of the pressing plate.

[0009] Preferably, the first pressing plate and the second pressing plate of the utility model are both made of ultra-thin steel sheets.

[0010] Preferably, the adsorption platform of the utility model includes a platform body, on which a plurality of interconnected negative pressure cavities are provided, the negative pressure cavities are connected to the negative pressure pipes, a microporous plate is arranged on the surface of the negative pressure cavity, and the area covered by the microporous plate is the adsorption area of ​​the adsorption platform.

[0011] Preferably, the inkjet machine of the present invention is provided with a vacuum suction and handling mechanism for sucking PCB boards for loading and unloading.

[0012] Beneficial effects: The double-table inkjet machine provided by the utility model has the following beneficial effects:

[0013] 1. The utility model sets a pressing plate mechanism on the adsorption platform, which can keep the edge of the PCB board flat and fit with the adsorption platform, thereby ensuring the printing quality.

[0014] 2. The double-table inkjet printer of the present invention can operate alternately on two tables, thereby improving processing efficiency.

[0015] 3. The first pressing plate mechanism and the second pressing plate mechanism of the utility model can both drive the corresponding pressing plates to move forward and backward in the direction of the edge of the PCB board, thereby meeting the requirements for pressing and fixing PCB boards of different specifications.

[0016] 4. The first pressing plate and the second pressing plate of the utility model are both made of ultra-thin steel sheets, which can not only ensure the rigidity requirement for pressing the edge of the PCB board, but also reduce the height of the pressing plate, so that when printing, the distance between the nozzle and the board surface of the PCB board is within the required range, ensuring the printing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0018] Figure 1 This is a three-dimensional diagram of the adsorption platform of the utility model;

[0019] Figure 2 This is a side view of the adsorption platform of the utility model;

[0020] Among them, 1-adsorption platform, 2-first pressing plate, 3-first connecting plate, 4-second pressing plate, 5-screw motor, 6-through slot, 7-negative pressure pipeline, 8-microporous plate. DETAILED DESCRIPTION

[0021] Reference will now be made in detail to embodiments of the present disclosure, one or more examples of which are set forth herein below. Each embodiment and example is provided by explaining the apparatus, composition and materials of the present disclosure, rather than limiting. On the contrary, the following description provides a convenient illustration of an exemplary embodiment for implementing the present disclosure. In fact, it will be clear to those skilled in the art that various modifications and variations can be made in the teachings of the present disclosure without departing from the scope or spirit of the present disclosure. For example, a feature shown or described as a part of an embodiment can be used in conjunction with another embodiment to produce yet another embodiment. It is expected that the present disclosure covers such modifications and variations within the scope of the appended claims and their equivalents. Other objects, features and aspects of the present disclosure are disclosed in or clear from the following detailed description. It will be understood by those of ordinary skill in the art that this discussion is only a description of exemplary embodiments and is not intended to limit the wider aspects of the present disclosure.

[0022] like Figure 1 and Figure 2 As shown, the utility model discloses a double-table inkjet machine, including an adsorption platform 1 for adsorbing and fixing a PCB board, a pressing plate mechanism for pressing and fixing the edge of the PCB board is arranged in the adsorption area of ​​the adsorption platform 1, and the pressing plate mechanism includes a first pressing plate mechanism arranged along the edge of the adsorption area and a second pressing plate mechanism arranged in the adsorption area, and the edge of the PCB board is pressed flat and close to the adsorption platform 1 through the cooperation of the first pressing plate mechanism and the second pressing plate mechanism.

[0023] In a specific embodiment, in order to meet the pressing and fixing requirements of PCB boards of different specifications, the pressing plate mechanism of the utility model adopts an adjustable form. Specifically, the first pressing plate mechanism of the utility model includes a first pressing plate 2 and a first driving assembly arranged under the first pressing plate 2. The first driving assembly includes a first lifting cylinder and a horizontal cylinder for driving the first lifting cylinder to move horizontally. The first pressing plate 2 is fixed at the driving end of the first lifting cylinder. The first lifting cylinder is fixed on the first connecting plate 3 and is connected to the horizontal cylinder through the first connecting plate 3. The first pressing plate 2 is driven by the horizontal cylinder to move back and forth to the side where the edge of the PCB board is located.

[0024] The second pressing plate mechanism of the utility model includes a second pressing plate 4, a second lifting cylinder and a screw motor 5. The second lifting cylinder is connected to the moving end of the screw motor 5 through a second connecting plate, and the second pressing plate 4 is fixed to the driving end of the second lifting cylinder. A through groove 6 is provided on the adsorption platform 1 for the driving ends of the first lifting cylinder and the second lifting cylinder to pass through, and the length of the through groove 6 matches the corresponding horizontal movement adjustment range of the pressing plate.

[0025] Through the cooperation of the first pressing plate mechanism and the second pressing plate mechanism, the requirements for clamping and fixing the edges of PCBs of various specifications in the adsorption area can be met. In order to ensure the smooth movement of the pressing plate, a guide structure can be set under the adsorption platform, and a linear bearing is used for guidance in the height direction, and a guide rail is used for guidance in the horizontal movement direction. At the same time, in order to ensure the quality of printing and make the height of the nozzle from the PCB board within an appropriate range during printing, the first pressing plate 2 and the second pressing plate 4 of the utility model are both made of ultra-thin steel sheets, which can avoid interference with the movement of the nozzle while having sufficient rigidity. Therefore, when the nozzle switches between the two adsorption platforms for operation, there is no need to adjust the height and can move directly, thereby reducing the difficulty of operating and adjusting the equipment and improving efficiency.

[0026] In order to ensure the uniformity of PCB adsorption, the adsorption platform 1 of the utility model includes a platform body 1, on which a plurality of interconnected negative pressure cavities are provided, the negative pressure cavities are connected to the negative pressure pipe 7, a microporous plate 8 is arranged on the surface of the negative pressure cavity, and the area covered by the microporous plate 8 is the adsorption area of ​​the adsorption platform 1, and a vacuum adsorption and conveying mechanism for adsorbing PCB boards for loading and unloading is arranged on the inkjet machine, and the vacuum suction cup is driven by a mechanical arm to move to perform the loading and unloading operations of the PCB boards, and a corresponding silo can be set according to needs, and the PCB boards are placed in the silo, and the position of the PCB boards is positioned by the silo to ensure the consistency of the positions of the PCB boards placed on the adsorption platform, so that when batch printing is performed, the first pressing plate and the second pressing plate can be positioned directly by a preset program to improve the working efficiency.

[0027] When the utility model is in use, a vacuum suction and handling mechanism is used to suck the PCB board from the silo and place it on the adsorption platform 1. The negative pressure device connected to the negative pressure pipe 7 generates negative pressure in the adsorption platform 1 to adsorb and fix the PCB board on the micro-porous plate 8. Then the first pressing plate mechanism and the second pressing plate mechanism are actuated, and the pressing plates are first driven to rise by the corresponding lifting cylinders. Then, the first pressing plate 2 and the second pressing plate 4 are respectively driven to move the edge positions of the PCB board by the horizontal cylinder and the screw motor. Finally, the lifting cylinder descends to press the edge of the PCB board tightly and fit it to the surface of the micro-porous plate 8. At the same time, the double-table structural design of the utility model can alternately perform printing operations on the two adsorption platforms 1 to improve efficiency.

Claims

1. A double-table inkjet machine, characterized in that: The invention comprises an adsorption platform (1) for adsorbing and fixing a PCB board, wherein a pressing plate mechanism for pressing and fixing the edge of the PCB board is arranged in the adsorption area of ​​the adsorption platform (1), wherein the pressing plate mechanism comprises a first pressing plate mechanism arranged along the edge of the adsorption area and a second pressing plate mechanism arranged in the adsorption area, and the edge of the PCB board is pressed flat and closely against the adsorption platform (1) through the cooperation of the first pressing plate mechanism and the second pressing plate mechanism.

2. A dual-table inkjet machine according to claim 1, characterized in that: The first pressing plate mechanism comprises a first pressing plate (2) and a first driving assembly arranged below the first pressing plate (2), the first driving assembly comprising a first lifting cylinder and a horizontal cylinder for driving the first lifting cylinder to move in translation, the first pressing plate (2) is fixed to the driving end of the first lifting cylinder, the first lifting cylinder is fixed to the first connecting plate (3) and is connected to the horizontal cylinder via the first connecting plate (3), and the first pressing plate (2) is driven by the horizontal cylinder to move forward and backward towards the side where the edge of the PCB board is located.

3. A dual-table inkjet machine according to claim 2, characterized in that: The second pressing plate mechanism comprises a second pressing plate (4), a second lifting cylinder and a screw motor (5); the second lifting cylinder is connected to the movable end of the screw motor (5) via a second connecting plate; and the second pressing plate (4) is fixed to the driving end of the second lifting cylinder.

4. A dual-table inkjet machine according to claim 3, characterized in that: The adsorption platform (1) is provided with a through slot (6) for the driving ends of the first lifting cylinder and the second lifting cylinder to pass through, and the length of the through slot (6) matches the corresponding horizontal movement adjustment range of the pressing plate.

5. A dual-table inkjet printer according to claim 3, characterized in that: The first pressing plate (2) and the second pressing plate (4) are both made of ultra-thin steel sheets.

6. A dual-table inkjet machine according to claim 1, characterized in that: The adsorption platform (1) comprises a platform body (1), on which a plurality of interconnected negative pressure cavities are provided, the negative pressure cavities being connected to the negative pressure pipes (7), a microporous plate (8) being arranged on the surface of the negative pressure cavities, and the area covered by the microporous plate (8) being the adsorption area of ​​the adsorption platform (1).

7. A dual-table inkjet printer according to claim 1, characterized in that: The inkjet machine is provided with a vacuum suction and transport mechanism for sucking PCB boards for loading and unloading.

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