Nested interactive double workbench inkjet printer
The nested interactive double-workbench inkjet machine addresses the limitations of existing equipment by employing a gantry-nested design with dual-drive platforms and dual CCD alignment, enabling efficient high-speed production of ultra-large PCB boards with reduced space and labor costs.
Patent Information
- Application Number
- CN201910816868.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-08-30
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2039-08-30
AI Technical Summary
Current side-by-side horizontal and double-side suspended vertical interactive double-table inkjet machines are unable to meet the production needs of ultra-large PCB boards due to structural limitations and excessive equipment size, leading to inefficiencies in production space, labor costs, and equipment costs.
A nested interactive double-workbench inkjet machine with a gantry-nested design, featuring dual-drive printing platforms, dual CCD alignment, and a herringbone layout, allowing for ultra-large format PCB boards to be printed without cutting, with a forward-front-out mode and automatic connection to production lines.
The machine efficiently and reliably produces large-size PCB boards at high speed by reducing equipment size, ensuring stable operation, and optimizing production efficiency and space utilization, meeting the needs of PCB manufacturers.
Smart Images
Figure CN110481156B_ABST
Abstract
Description
[Technical field]
[0001] The invention relates to the field of printed circuit board manufacturing equipment, in particular to a nested interactive double-workbench inkjet machine. [Background technology]
[0002] After the PCB board is designed, the PCB factory will design the panel according to the shape and size of the PCB board, the size specifications of the upstream supplier's board materials, and the processing capabilities of each process equipment, and design a panel size that can meet the company's requirements for optimal board quality, lowest production cost, highest production efficiency, and highest board utilization. Due to the constraints of the processing capabilities of the process equipment, usually a basic sheet needs to be cut into two, four, six, or even more pieces for production. The entire circuit board process is relatively complicated, involving more process equipment and operators, and the production site requirements are also large. As circuit board production factories have an increasing demand for reducing labor costs, saving production space, improving production efficiency, and reducing equipment costs, the large-plate processing capacity of PCB circuit board process equipment will become a new trend in the industry. Due to the structural strength design and running stability of the large-size printing platform of PCB large-plate printing equipment, especially high-speed large-plate printing equipment, as well as the problem of excessive equipment size, the current side-by-side horizontal interactive double-table inkjet machine or double-side suspended vertical interactive double-table inkjet machine design in the field cannot meet the production needs of larger plates. In the current industry field, high-speed printing equipment suitable for ultra-large plates is still in a technical gap. [Summary of the invention]
[0003] In order to overcome the above problems, the present invention proposes a nested interactive double-workbench inkjet machine which can effectively solve the above problems.
[0004] The present invention provides a technical solution to solve the above technical problems: providing a nested interactive double-workbench inkjet machine, comprising a marble machine assembly, a printing workbench assembly, a CCD alignment system, an inkjet printing carriage, a nozzle cleaning device, an ink supply system and a control system connected to a computer, characterized in that the printing workbench assembly gantry is nestedly connected to the marble machine assembly, the CCD alignment system is arranged at the front end above the marble machine assembly, the inkjet printing carriage is arranged at the top of the marble machine assembly, the nozzle cleaning device, the ink supply system, and the control system are respectively arranged on the side of the marble machine assembly, the printing workbench assembly, the CCD alignment system, the inkjet printing carriage, the nozzle cleaning device, and the ink supply system are respectively connected to the control system signal, the marble machine assembly comprises a base, two A bases, two B bases and a frame beam, the base is in the shape of a rectangular plate, the two A bases are parallelly fixed to the two sides of the base, the two B bases are parallelly embedded between the two A bases, and the two B bases are fixedly connected to the base.
[0005] Preferably, the A base is arranged in parallel with the B base, and the A base is higher than the B base.
[0006] Preferably, the printing workbench assembly includes an A printing workbench and a B printing workbench, wherein the A printing workbench is installed astride two A bases, and the B printing workbench is installed astride two B bases, the A printing workbench can slide along the two A bases, and the B printing workbench can slide along the two B bases.
[0007] Preferably, a first guide rail and a first linear motor are provided on the top of the two A bases, the A printing workbench is installed across the first guide rail, and the first linear motor provides power for the sliding of the A printing workbench.
[0008] Preferably, a second guide rail and a second linear motor are provided on the top of the two B bases, the B printing workbench is installed across the second guide rail, and the second linear motor provides power for the sliding of the B printing workbench.
[0009] Preferably, the B printing workbench further comprises a lifting push rod, and the lifting push rod can drive the table top of the B printing workbench to move up and down in the Z-axis direction.
[0010] Preferably, a third guide rail and a third linear motor are respectively arranged in parallel on the front and rear sides of the top of the frame beam, the inkjet printing carriage is installed across the third guide rail, and the third linear motor drives the inkjet printing carriage to move back and forth along the third guide rail.
[0011] Preferably, the CCD alignment system comprises a first CCD camera and a second CCD camera, and the first CCD camera and the second CCD camera are slidably mounted on the front side of the frame beam.
[0012] Preferably, the nested interactive double-workbench inkjet machine includes a plate placing and receiving station, an alignment station, and an inkjet printing station. The plate placing and receiving station, the alignment station, and the inkjet printing station are arranged in a straight line in the Y-axis direction. The alignment station corresponds to the position of the CCD alignment system up and down, and the inkjet printing station corresponds to the position of the inkjet printing carriage up and down.
[0013] Preferably, the nested interactive double-workbench inkjet machine and the production line are arranged in a herringbone shape.
[0014] Compared with the prior art, the nested interactive dual-workbench inkjet machine of the present invention has two sets of large-span dual-drive printing platforms and can interact vertically. The two sets of large-span dual-drive printing platforms adopt a gantry nested design, which effectively reduces the equipment's external size requirements while ensuring that the large-size printing platform has a reliable structure and stable operation. A large-span dual-drive printing trolley is adopted, and the printing platform can be loaded with ultra-large format PCB circuit boards that do not even need to be cut for single-pass full-width scanning inkjet printing. The equipment also adopts dual CCDs for four-point camera positioning and a center-positioned four-side mobile fixture for the printing table. The equipment has an automatic connection function and adopts a herringbone layout with the production line. The PCB board adopts a forward-front-out mode, which efficiently and reliably meets the large-board high-speed production needs of PCB manufacturers, and at the same time reasonably meets the process automatic line layout of PCB manufacturers.
Brief Description of the Drawings
[0015] Figure 1 A first-view stereoscopic image of the nested interactive double-workbench inkjet machine of the present invention;
[0016] Figure 2 A second perspective stereogram of the nested interactive double-workbench inkjet machine of the present invention;
[0017] Figure 3 It is a front view of the nested interactive double-workstation inkjet machine of the present invention;
[0018] Figure 4 The figure is a schematic diagram of the workstation distribution of the nested interactive double-workstation inkjet machine of the present invention. [Specific implementation method]
[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0020] It should be noted that in the embodiments of the present invention, all directional indications (such as up, down, left, right, front, back, etc.) are limited to relative positions on the specified view, rather than absolute positions.
[0021] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0022] See also Figures 1 to 4The nested interactive double-table inkjet printer of the present invention comprises a marble machine assembly 1, a printing table assembly 2, a CCD alignment system 3, an inkjet printing carriage 4, a nozzle cleaning device 5, an ink supply system 6, and a control system 7 connected to a computer. The printing table assembly 2 is gantry-nestedly connected to the marble machine assembly 1, the CCD alignment system 3 is arranged at the front end above the marble machine assembly 1, the inkjet printing carriage 4 is arranged at the top of the marble machine assembly 1, and the nozzle cleaning device 5, the ink supply system 6, and the control system 7 are respectively arranged on the side of the marble machine assembly 1. The printing table assembly 2, the CCD alignment system 3, the inkjet printing carriage 4, the nozzle cleaning device 5, and the ink supply system 6 are respectively connected to the control system 7 by signal, and the control system 7 is used for overall control.
[0023] The marble machine assembly 1 includes a base 101, two A bases 102, two B bases 103 and a frame crossbeam 104. The base 101 is in the shape of a rectangular plate. The two A bases 102 are parallel and fixed to the two sides of the base 101. The two B bases 103 are parallel and embedded between the two A bases 102. The two B bases 103 are fixedly connected to the base 101. The A base 102 and the B base 103 are arranged in parallel, and the A base 102 is higher than the B base 103. The frame crossbeam 104 is a frame structure as a whole, which is erected above the A base 102 and the B base 103 and fixed to the outer sides of the two A bases 102. The two A bases 102 and the two B bases 103 are nested in the frame crossbeam 104.
[0024] The printing table assembly 2 includes an A printing table 201 and a B printing table 204. The A printing table 201 is installed across the two A bases 102, and the B printing table 204 is installed across the two B bases 103. The A printing table 201 can slide along the two A bases 102 (in the Y-axis direction), and the B printing table 204 can slide along the two B bases 103 (in the Y-axis direction). The B printing table 204 is located below the A printing table 201. The tops of the two A bases 102 are provided with a first guide rail 202 and a first linear motor 203. The A printing table 201 is installed across the first guide rail 202. The first linear motor 203 provides power for the sliding of the A printing table 201. The A printing table 201 adopts a forward and forward movement mode. The tops of the two B bases 103 are provided with a second guide rail 205 and a second linear motor 206, and the B printing table 204 is installed across the second guide rail 205. The second linear motor 206 provides power for the sliding of the B printing table 204, and the B printing table 204 adopts a forward and forward movement. Since the first linear motor 203 is provided on both A bases 102, and the second linear motor 206 is provided on both B bases 103, the forward and backward sliding operation of the A printing table 201 and the B printing table 204 is a dual driving force source, and the dual driving force sources on both sides can smoothly drive the large-span A printing table 201 and the B printing table 204 to meet the requirements of PCB large-board printing. The B printing table 204 also includes a lifting push rod 90, and the lifting push rod 90 can drive the table top of the B printing table 204 to move up and down in the Z-axis direction. Since the X-axis coordinates of the table tops of the A printing table 201 and the B printing table 204 are the same at any position along the Y-axis of the device, that is, the table tops of the A printing table 201 and the B printing table 204 can realize vertical interaction and overlap in the Z-axis direction of the device, the A printing table 201 and the B printing table 204 are in a nested state when doing vertical interaction, that is, the B printing table 204 is nested between the A printing table 201. The first linear motor 203, the second linear motor 206, and the lifting push rod 90 are respectively connected to the control system signal. The table tops of the A printing table 201 and the B printing table 204 adopt a four-sided moving fixture with center positioning.
[0025] The CCD alignment system 3 includes a first CCD camera 301 and a second CCD camera 302, which are slidably mounted on the front side of the frame crossbeam 104, simplifying the device structure, shortening the overall length of the device in the Y-axis direction, saving space, and the first CCD camera 301 and the second CCD camera 302 can fly left and right along the X-axis direction to take pictures. A fourth guide rail 303 and a left drive motor 304 and a right drive motor 305 are fixed on the front side of the frame crossbeam 104 along the X-axis direction, and the first CCD camera 301 and the second CCD camera 302 are slidably mounted on the fourth guide rail 303, and the left drive motor 304 and the right drive motor 305 respectively drive the first CCD camera 301 and the second CCD camera 302 to run left and right, which is conducive to taking pictures of different target points of the circuit board on the same table at the same time. The first CCD camera 301, the second CCD camera 302, the left drive motor 304, and the right drive motor 305 are respectively connected to the control system 7 by signal.
[0026] The inkjet printing carriage 4 is installed across the top of the frame beam 104 and can slide along the X-axis direction of the device. The front and rear sides of the top of the frame beam 104 are respectively provided with a third guide rail 401 and a third linear motor 402 in parallel. The inkjet printing carriage 4 is installed across the third guide rail 401, and the third linear motor 402 drives the inkjet printing carriage 4 to move back and forth along the third guide rail 401. The inkjet printing carriage 4 is also provided with a UV ultraviolet curing device. The inkjet printing carriage 4 scans back and forth along the X-axis direction of the device under the dual driving force to print UV photosensitive ink to the circuit board on the table directly below to form the required graphics and texts. At the same time, the UV ultraviolet curing device loaded on the inkjet printing carriage 4 instantly cures the graphics and texts on the printed circuit board; the operation space of the inkjet printing carriage 4 under the dual driving force is in the middle of the frame beam 104, and the large span can load a large number of nozzles to achieve one trip to cover and scan the entire PCB circuit board that has not been divided and cut. The ultra-large span inkjet printing carriage 4 has a stable structure and stable operation, which excellently guarantees the printing quality and printing accuracy. The special frame beam 104 structure also forms a wide space on the left and right sides of the inkjet printing carriage 4, which provides convenience for the maintenance of the dense nozzles on the inkjet printing carriage 4. The third linear motor 402 and the inkjet printing carriage 4 are respectively connected to the control system 7 signal.
[0027] The nozzle cleaning device 5 is slidably installed on the outer side of the A base 102 facing the bottom of the inkjet printing carriage 4. The nozzle cleaning device 5 includes a Y-axis driving cylinder 51 and a Z-axis driving cylinder 52. The Y-axis driving cylinder 51 drives the nozzle cleaning device 5 to run along the Y-axis direction of the device to clean the nozzle on the inkjet printing carriage 4, thereby ensuring the quality and accuracy of the graphics and text printed on the PCB circuit board. The Z-axis driving cylinder 52 drives the nozzle cleaning device 5 to move up and down along the Z-axis direction of the device, which provides great convenience for the nozzle maintenance space on the inkjet printing carriage 4. The Y-axis driving cylinder 51, the Z-axis driving cylinder 52, and the nozzle cleaning device 5 are respectively connected to the control system 7 by signal.
[0028] The ink supply system 6 is arranged behind the marble machine assembly 1, next to the inkjet printing carriage 4 and the nozzle cleaning device 5, and includes a main ink barrel, a secondary ink cartridge, an ink pump, a filter, a negative pressure tank or a vacuum pump, which is connected to the nozzle assembly of the injection system to provide ink to the injection system, and is also connected to the nozzle suction nozzle and the ink collection box of the nozzle cleaning device 5 to perform nozzle suction cleaning and waste ink recovery. The signal input end of the ink supply system 6 is connected to the control system 7, and the signal output end of the ink supply system 6 is connected to the inkjet printing carriage 4 and the nozzle cleaning device 5.
[0029] The nested interactive double-table inkjet machine includes a board placing and receiving station 81, an alignment station 82, and an inkjet printing station 83. The board placing and receiving station 81, the alignment station 82, and the inkjet printing station 83 are arranged in a straight line in the Y-axis direction. The alignment station 82 corresponds to the position of the CCD alignment system 3, and the inkjet printing station 83 corresponds to the position of the inkjet printing carriage 4. In the initial state, the A printing table 201 and the B printing table 204 are overlapped up and down in the board placing and receiving station, and the B printing table 204 is directly below the A printing table 201. Since the A printing table 201 and the B printing table 204 transport PCB circuit boards in a forward-forward manner, the placing and receiving of boards can be completed at the same station, shortening the overall length of the equipment in the Y-axis direction, saving space, and being distributed in a triangular shape with the production line, efficiently and reliably meeting the large-board high-speed production needs of PCB manufacturers, and at the same time reasonably meeting the process automatic line layout of PCB manufacturers.
[0030] During operation, the nested interactive double-table inkjet machine is provided with manipulators on both sides. The manipulator on the left side places the PCB circuit board on the A printing table 201, and the A printing table 201 moves forward along the Y-axis direction to below the CCD alignment system 3. At this time, the first CCD camera 301 and the second CCD camera 302 installed on the front side of the frame beam 104 have moved to the photographing position according to the ±X-axis direction of the computer image data, and respectively take pictures of the first and second target points on the PCB circuit board. Then the A printing table 201 moves forward along the Y-axis direction again, and the first CCD camera 301 and the second CCD camera 302 remain stationary and take pictures of the third and fourth target points of the PCB circuit board on the A printing table 201. After that, the software system compares the photographed target points and the data target points and performs graphic alignment. At this time, the table top of the B printing table 204 at the board placing and receiving station 81 rises to the working height, and the manipulator on the left side places another PCB circuit on the B On the printing table 204, then the B printing table 204 moves forward along the Y-axis direction to the bottom of the CCD alignment system 3 and vertically descends to the interactive low position. At the same time, the A printing table 201 moving forward has run along the Y-axis direction to the bottom of the frame beam 104 (i.e., the inkjet printing station 83). At this time, the inkjet printing carriage 4 (in the initial state, it is directly above the nozzle cleaning device 5 on the right side of the equipment) starts to start and scans back and forth in the ±X-axis direction to print UV photosensitive ink to the circuit board on the printing table directly below to form the required graphics. At the same time, the UV ultraviolet curing device loaded on the inkjet printing carriage 4 instantly cures the graphics on the printed circuit board. Then, the A printing table 201 loaded with the printed circuit board returns along the Y-axis direction to the front end of the equipment. The robot on the right side of the equipment unloads the printed circuit board and sends it to the next production process. Then the robot on the left side of the equipment puts the new circuit board to be printed on the A printing table 201, and the A printing table 201 completes a workflow.After the A printing table 201 returns to the front of the device from the inkjet printing station 83 at the rear of the device, the B printing table 204 under the CCD alignment system 3 will rise vertically to the working height again, and repeat the alignment, printing and curing process of the A printing table 201. Then, the B printing table 204 loaded with the printed circuit board will vertically descend to the interactive low position at the inkjet printing station 83 and return along the Y-axis direction to the front of the device. At this time, the A printing table 201 in front of the device, which is reloaded with the circuit board to be printed, has moved forward again along the Y-axis direction to the bottom of the CCD alignment system 3, and the same workflow cycle is carried out, and then the The B printing table 204 also repeats the workflow of rising to collect boards, putting boards down, interacting with each other, rising to align, printing, and falling back. The A printing table 201 and the B printing table 204 keep repeating the above workflow. The entire workflow is completed in one go without interfering with each other. While the table of the B printing table 204 collects / puts boards, the table of the A printing table 201 performs photo alignment or scanning and printing. While the table of the A printing table 201 collects / puts boards, the table of the B printing table 204 performs photo alignment or scanning and printing. The production efficiency is greatly improved, which well meets the production needs of the automatic line. ;
[0031] Compared with the prior art, the nested interactive dual-workbench inkjet machine of the present invention has two sets of large-span dual-drive printing platforms and can interact vertically. The two sets of large-span dual-drive printing platforms adopt a gantry nested design, which effectively reduces the equipment's external size requirements while ensuring that the large-size printing platform has a reliable structure and stable operation. A large-span dual-drive printing trolley is adopted, and the printing platform can be loaded with ultra-large format PCB circuit boards that do not even need to be cut for single-pass full-width scanning inkjet printing. The equipment also adopts dual CCDs for four-point camera positioning and a center-positioned four-side mobile fixture for the printing table. The equipment has an automatic connection function and adopts a herringbone layout with the production line. The PCB board adopts a forward-front-out mode, which efficiently and reliably meets the large-board high-speed production needs of PCB manufacturers, and at the same time reasonably meets the process automatic line layout of PCB manufacturers.
[0032] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any modifications, equivalent substitutions and improvements made within the concept of the present invention should be included in the patent protection scope of the present invention.
Claims
1. A nested interactive double-table inkjet printer, comprising a marble machine assembly, a printing table assembly, a CCD alignment system, an inkjet printing carriage, a nozzle cleaning device, an ink supply system and a control system connected to a computer, characterized in that: The printing workbench assembly gantry is nestedly connected in the marble machine assembly, the CCD alignment system is arranged at the front end above the marble machine assembly, the inkjet printing carriage is arranged on the top of the marble machine assembly, the nozzle cleaning device, the ink supply system, and the control system are respectively arranged on the side of the marble machine assembly, and the printing workbench assembly, the CCD alignment system, the inkjet printing carriage, the nozzle cleaning device, and the ink supply system are respectively connected to the control system signal; The marble machine assembly includes a base, two A bases, two B bases and a frame crossbeam. The base is in the shape of a rectangular plate. The two A bases are fixed parallel to the two sides of the base. The two B bases are embedded parallel to the two A bases. The two B bases are fixedly connected to the base. The frame crossbeam is a frame structure as a whole, which is erected above the A base and the B base and fixed to the outer sides of the two A bases. The two A bases and the two B bases are nested in the frame crossbeam; The printing table assembly includes a printing table A and a printing table B. The printing table A adopts a forward-forward movement mode, and the printing table B adopts a forward-forward movement mode. The forward and backward sliding operation of the printing table A and the printing table B is a dual driving force source; the table tops of the printing table A and the printing table B have the same X-axis coordinates at any position on the Y-axis of the device; The A printing workbench is installed across the two A bases, and the B printing workbench is installed across the two B bases. The A printing workbench can slide along the two A bases, and the B printing workbench can slide along the two B bases. The tops of the two A bases are provided with a first guide rail and a first linear motor, the A printing workbench is installed across the first guide rail, and the first linear motor provides power for the A printing workbench to slide; The tops of the two B bases are provided with a second guide rail and a second linear motor, the B printing workbench is installed across the second guide rail, and the second linear motor provides power for the sliding of the B printing workbench; The nested interactive double-table inkjet machine and the production line are arranged in a herringbone shape; The A base is arranged in parallel with the B base, and the A base is higher than the B base; The B printing workbench also includes a lifting push rod, which can drive the table of the B printing workbench to move up and down in the Z-axis direction; The CCD alignment system includes a first CCD camera and a second CCD camera, and the first CCD camera and the second CCD camera are slidably mounted on the front side of the frame beam; The nested interactive double-workbench inkjet machine includes a plate placing and receiving station, an alignment station, and an inkjet printing station. The plate placing and receiving station, the alignment station, and the inkjet printing station are arranged in a straight line in the Y-axis direction. The alignment station corresponds to the position of the CCD alignment system up and down, and the inkjet printing station corresponds to the position of the inkjet printing carriage up and down; the operating space of the inkjet printing carriage is in the middle of the frame beam; In the initial state, printing table A and printing table B are overlapped up and down in the plate placing and collecting position, and printing table B is directly below printing table A.
2. The nested interactive double-table inkjet machine according to claim 1, characterized in that: The front and rear sides of the top of the frame beam are respectively and parallelly provided with a third guide rail and a third linear motor. The inkjet printing carriage is installed across the third guide rail. The third linear motor drives the inkjet printing carriage to move back and forth along the third guide rail.