TW550182B - Multi-axis two-dimensional automatic error compensating system - Google Patents

Abstract

Disclosed is a multi-axis two-dimensional automatic error compensating system that is used with an ink cartridge carriage of an inkjet printer, inkjet multi-functional office machine or inkjet plotter, comprising a carrier, a reciprocal moving portion and a driving device. On the carrier is provided with a slash sensor and a slanting sensor. The reciprocal moving portion is mounted to the inkjet printer, inkjet multi-functional office machine or inkjet plotter to perform reciprocal movement. The driving device includes a rotating portion and an elevating portion. The rotating portion is pivoted to the carrier. The elevating portion and the reciprocal moving portion are pivoted to each other and perform sliding movement, such that the rotating face of the rotating portion and the elevating path of the elevating portion forms a spatial coordinate of an X-Y plane with a Z-axis. The ink cartridge carriage is proactively controlled in accordance with the measurements and scanning of the slash sensor and the slanting sensor, such that the optimum printing slash between the nozzles and the paper may be automatically adjusted to avoid ink dragging while the errors accumulated from the components, manufacturing and assembly processes may be automatically compensated to eliminate deviating or discontinuous tracks.

Description

550182 V. Description of the invention (1) [Field of the invention] A multi-axis fault-tolerant two-dimensional automatic compensation system, in particular, relates to a kind of machinery and equipment used in bi-axial or multi-axial motion, such as inkjet printers, inkjet Automatic compensation system for nozzle gap adjustment and automatic positioning of multi-function printers or inkjet plotters. [Background of the Invention] The principle of axial movement is used to adjust the operating orientation of parts to achieve the field of tools or equipment for material processing, such as printers for main data output tools in computer peripherals, among which inkjet printers With rich color variations and reasonable prices, it has become the most popular and popular computer standard equipment. From the perspective of technology research and development of inkjet printers, the quality of printing ink is the most important thing. When printing, the printing system controls the optimum environment and conditions for printing ink between the cartridge carrier and the paper to express the most consistent original appearance of the data. The ink cartridge carrier of the conventional inkjet printer, as shown in the first figure, includes a carrier part 7 and a reciprocating displacement part 8. The carrier part 7 is fixed on the reciprocating displacement part 8. The reciprocating displacement portion 8 is provided with a bearing seat 80. The bearing 8 2 is fixed to the reciprocating displacement portion 8 by screws 81 and slid on a shaft (not shown) to perform the nozzle 70 of the inkjet carrier. For reciprocating printing, a paper feed roller and a pallet (not shown) are provided under the ink cartridge carrier for paper feeding into Yin J. The gap between the nozzle and the paper of the ink cartridge carrier of the conventional inkjet printer is determined by an adjusting lever provided on the printer casing.

550182 5. Description of the invention ⑵ The mechanical adjustment of the vehicle's shaft is limited by the volume configuration of the casing and related parts. The adjustment lever can only provide a very small number of fixed gap positions for adjustment, which is difficult to meet all kinds of Paper thickness, when the gap is too large, inkjet printing will be diffused. When the gap is too small, it will cause the phenomenon of dragging ink. Not only will it reduce the print quality, it will even make the paper stain. It is indeed a major weakness of inkjet printers. In addition, during the manufacture of each part of the inkjet printer, there will be mold tolerances, so that the parts have considerable error values after leaving the factory. After assembly, various errors are also collected together, such as the cartridge carrier. The shaft is not parallel to the shaft of the paper feed roller, the shaft holes on the left and right sides are eccentric to skew the shaft, the shaft hole of the shaft and its bushing are eccentric, the shaft is skewed, the size error between the cartridge and the cartridge carrier, The angle error between the nozzle and the ink cartridge, etc., constitutes the phenomenon of skew and discontinuity of the inkjet stitches when printing, which greatly reduces the print quality of the inkjet printer. Therefore, it can be seen from the above that the ink cartridge carrier of the conventional inkjet printer and the printing process thereof obviously have inconveniences and defects in actual use, and need to be improved. (The reason is that the present inventor felt that the above-mentioned deficiency could be improved. He intensively studied and applied the scientific theory, and finally came up with an invention that is rationally designed and effectively improves the above-mentioned deficiency. [Objective of the Invention] The main object of the present invention It is to provide a multi-axis fault-tolerant two-dimensional automatic compensation system, so that the inkjet printer can maintain the optimal inkjet distance when printing paper of different thicknesses to avoid the phenomenon of dragging ink and improve the printed products.

550182 5. Description of the invention (3) Quality. Another object of the present invention is to provide a multi-axis fault-tolerant two-dimensional automatic compensation system, which can compensate and absorb the errors, processing errors, and assembly errors of each part of the inkjet printer, so as to eliminate the discontinuity of the stitches. This phenomenon improves the quality of seals. [Inventive Features] In order to achieve the above object, the present invention is mainly to provide a multi-axis fault-tolerant Erwei automatic compensation system, which is used for multi-axial movement of equipment and equipment to perform actions and record the results of the action to a predicted target, including A carrier part, a reciprocating displacement part and a driving device, wherein the carrier part is provided with a gap sensor and a skew sensor; the reciprocating displacement part is assembled with the multi-axially moving equipment and equipment for reciprocating displacement. ; And the driving device includes a rotating part and a lifting part, the rotating part is pivotally connected to the carrier part, the lifting part is pivotally connected with the reciprocating displacement part and makes a sliding displacement, so that the rotating surface of the rotating part A vertical coordinate system with the lifting line forms a space coordinate system of the X-Y plane and the Z axis. The gap sensor of the vehicle part can measure the distance between the vehicle part and the predicted target, and automatically and two-dimensionally with the multi-axis fault tolerance. The built-in value comparison table of the prediction target of the compensation system is compared, and the lifting section is further activated to make the vehicle section perform the Z-axis lifting adjustment, and the deflection sensor of the vehicle section scans its action on the preset The initial verification pattern of the target object is compared with the built-in value comparison table of the multi-axis fault-tolerant two-dimensional automatic compensation system, and the rotation 咅 P is further started to drive the carrier part along the Z axis at X — Y Adjust the angular displacement of the plane0

550182 V. Description of the invention (4) [Detailed description] In order to allow your reviewers to further understand the technology, means and effects adopted by the present invention to achieve the intended purpose, please refer to the following detailed description and drawings of the present invention. The purpose, features, and characteristics of the present invention can be obtained from this in-depth and specific understanding, but the drawings are provided for reference and description only, and are not intended to limit the present invention. Please refer to the second and third figures. The present invention is a multi-axis fault-tolerant two-dimensional automatic compensation system, which is applied to a multi-axis motion machine equipment to perform an action and record the result of the action in a predicted target. Multi-axial motion equipment such as an inkjet printer cartridge carrier includes a carrier part 1, a reciprocating displacement part 2 and a driving device 3, among which: the carrier part 1 is used for inkjet printing For the installation of the ink cartridge 10 of the table machine, the carrier part 1 includes a nozzle 11, and the nozzle 11 is integrated with the ink cartridge 10 or integrated with the ink cartridge carrier. The gap sensor 12 and a deflection sensor 1 3 have a pivot surface 1 4 on one side of the carrier portion 1. The pivot surface 1 4 is provided with convex rings 15 on the upper and lower ends, and the convex ring 15 is provided with Pivot hole 18, pivot surface 14, and a ratchet portion 16; the carrier portion 1 also includes a signal connection line 17 and is electrically connected to the circuit board (not shown) of the inkjet printer for spraying Ink command transmission. The reciprocating displacement part 2 is connected to the multi-axially moving equipment for reciprocating displacement, and includes a bearing 20, a belt tenon 21, and a lead screw hole 22, and the bearing 20 is provided to be set on the One of the shafts of the inkjet printer (not shown), so that the cartridge carrier slides along the shaft so that the nozzle 11 can perform reciprocating printing work; the belt tongue 2 1 is covered with a vibration absorbing body 2 5, and the belt card

550182 V. Description of the invention⑸ The tenon 2 1 is used for fixing the belt 2 3 of the inkjet printer to drive the ink cartridge carrier on the shaft by the motor of the inkjet printer (not shown). Reciprocating motion; a dovetail groove 24 is provided on one side of the reciprocating displacement portion 2 and the lead screw hole 22 is arranged in parallel. The driving device 3 includes a rotating portion 30 and a lifting portion 40. The rotating portion 30 includes a rotating driver 31 and an encoder 3 2, wherein the rotating driver 3 1, such as a motor, is connected with a A C-shaped ring 3 3 is fixed to the rotating part 30. One side of the rotary driver 3 1 is convexly connected to a gear 3 4, and the other side thereof is convexly connected to a coding disc 3 5, as shown in the third figure A. It is shown that the gear 34 is meshed with the ratchet portion 16 of the carrier portion 1, and the periphery of the encoder disc 35 is accommodated in the encoder 3 2 of the rotation portion 30. The rotation portion 30 is separately provided. A pivot 36 is aligned in a straight line with the axis of the rotary drive 31, and is pivotally connected to the pivot hole 18 of the convex ring 15 of the carrier part 1. The lifting part 40 includes a lifting drive. 4: 1 and another encoder 4 2. The lifting drive 4 1, such as a motor, is fixed to the lifting part 40 with a C-shaped ring 4 3 ring, and one side of the lifting drive 41 is provided with a connection-guide. The screw 4 4 is convexly connected to another coding disc 4 5 on the other side. The lead screw 4 4 is screwed with the lead screw hole 22 of the reciprocating displacement part 2, and the coding disc 4 is accommodated on the periphery. In the encoder 4 2 of the lifting portion 40, as shown in the third figure B, the lifting portion 40 is further provided with a dovetail ridge 4 6 which is accommodated in the reciprocating displacement portion. In the dovetail groove 2 of 2, the lifting portion 40 is pivotally connected to the reciprocating displacement portion 2 to perform a sliding displacement; the driving device 3 is fixedly connected to a circuit board 5 which is connected to a signal line respectively 50 and 5 1 to the two encoders 4 2 and 3 2 to

550182 V. Description of the invention ⑹ Provide feedback signals for gap control and angle control, and the circuit board 5 and the signal connection line 17 are electrically connected for transmitting instructions to the lift driver 4 1 and the rotary driver 3 1, and an external circuit Board 5 2 to provide a metal contact (not shown) in electrical contact with the circuit (not shown) of the carrier unit 1 to transmit printing instructions, wherein the other side of the metal contact of the circuit board 5 2 is provided There is a soft pad 5 3 to enhance the stability of its electrical contact. Please refer to the fourth figure. The inkjet printer cartridge carrier ’s multi-axis fault-tolerant two-dimensional automatic compensation system is provided with a paper feed tray 6 and a paper feed roller 6 5 on the side. The paper feeding direction of the paper tray 6 is perpendicular to the sliding direction of the reciprocating displacement portion 2 of the ink cartridge carrier. The plane of the paper tray 6 is parallel to the gap sensor 12 and the skew sensor 13. The space detection plane 60 is parallel to the rotation surfaces of the ratchet portion 16 of the carrier portion 1 and the gear 3 4 of the rotation portion 30 of the driving device 3, and the detection plane 60 The normal direction is the direction of the lead screw 4 4 of the driving device 3, so that the rotating surface of the rotating portion 30, that is, the detection plane 60, forms a straight line with the ascending and descending straight line of the lead screw 44 of the lifting portion 40. Space coordinate system of plane and Z axis, wherein the initial distance between the nozzle 11 of the carrier part 1 and the paper feed tray 6 is D 0, and the optimal printing gap from the detection plane 60 is D 1 . In terms of inkjet gap adjustment, as shown in the flow chart of Figure 8 and automatic adjustment of the optimal inkjet distance, please refer to Figures 4 and 5 at the same time. It is a predicted target 6 1, here it is When a sheet of paper enters the paper feed tray 6 and is on standby, the gap sensor 12 measures the distance D 2 between the nozzle 11 of the carrier unit 1 and the predicted target 6 1, and then tolerates this to the multi-axis fault tolerance.

Page 10 550182 5. Description of the invention ⑺ The two-dimensional automatic compensation system compares the built-in value comparison table of the predicted target to obtain the optimal inkjet gap adjustment value Δ D. The comparison table is for various predicted targets 6 The system built-in value of the thickness of 1 is tested and organized. This data is fed back to the algorithm for closed-loop control. When the distance D 2 between the nozzle 11 and the predicted target 6 1 is less than or greater than the optimal printing gap At D1, the lifting driver 41 of the lifting portion 40 of the ink cartridge carrier is started to drive the lead screw 4 4 to rise or fall, so that the dovetail protrusion 4 6 of the driving device 3 follows the dovetail of the reciprocating displacement portion 2 The groove 2 4 moves, and the nozzle 11 of the carrier part 1 can be adjusted up and down along the Z axis of the lead screw 4 4 to achieve the optimal printing gap D 1. In terms of stitch skew correction, as shown in the flow chart of Figure 9, automatic adjustment of the optimal inkjet angle is the first time when the target 6 1 is printed on the paper feed tray, please refer to Figure 6 at the same time. As shown in the figure, the predicted target 6 1 advances in the paper feed direction 6 4. The nozzle 11 1 first performs a forward test stitch printing operation, so that the predicted target 6 1 records the operation result and prints the initial verification pattern 6 2. 1 1 When making the return movement, scan the deflection sensor 1 3 of the vehicle unit 1 to read the initial check pattern 6 2 and determine whether there is an error between the stitches and the straight line 6 3 parallel to the paper feeding direction. The angle Θ is compared with the built-in value comparison table of the multi-axis fault-tolerant two-dimensional automatic compensation system. The comparison table is the built-in value of the system that is tested and sorted for various printing patterns. According to the algorithm, the closed-loop control is performed. If the error angle 0 is greater than zero or less than zero, as shown in the seventh figure, the rotation driver 3 1 of the rotation portion 30 of the ink cartridge carrier 3 starts the gear 3 4 to drive the load. The ratchet part 16 of the tool part 1 rotates clockwise or counterclockwise, and the load Section 1 of

Page 11 550182 V. Description of the invention (8) The nozzle 11 can be adjusted for the angular displacement along the Z axis in the X-Y plane to achieve the best inkjet angle, so that the straight line printed on the nozzle 11 can be kept flush Straight line 6 3 in the paper feed direction to eliminate the discontinuity of the stitches. [Features and advantages of the invention] Therefore, through the multi-axial fault-tolerant two-dimensional automatic compensation system of the present invention, it has the following characteristics: (1) the gap sensor of the carrier part and the lifting part of the driving device, When the inkjet printer prints paper of different thickness, the energy can measure the distance between the nozzle and the paper, and adjust it up and down to maintain the best printing gap, avoid ink drag, and improve the printing quality. (2) The offset sensor of the carrier part and the rotation part of the driving device are set so that the nozzle can adjust its error angle through the initial calibration pattern, so that the error of each part of the inkjet printer, processing error and Assembly errors are compensated and absorbed, eliminating the phenomenon of skew and discontinuity in stitches and improving the quality of printing. To sum up, the present invention fully complies with the requirements of an invention patent application. Therefore, you should submit an application in accordance with the patent law. Please check and request the patent as soon as possible. Members have any suspicions, please follow the letter instructions. However, the above descriptions are only detailed descriptions and drawings of specific embodiments of the present invention, and are not intended to limit the present invention and the characteristics of the present invention. For example, those who are familiar with the art and follow the spirit of the present invention, etc. Modifications or changes, such as the application of the present invention to machine tools such as inkjet printers, inkjet multifunction printers, or inkjet plotters that have bi-axial or multi-axial motion, should be included in the patent of the present invention In range.

Page 12 550182 Brief description of the drawings [Brief description of the drawings The first diagram is a schematic plan view of a cartridge carrier of a conventional inkjet printer. The first diagram is an exploded plan view of the present invention. The second diagram is this one. The plane combination diagram of the invention 0 The second diagram A is an enlarged schematic diagram of the second diagram A of the present invention 0 The second diagram B is an enlarged diagram of the second diagram B of the present invention. The fourth diagram is the plane before the lifting part of the present invention operates Schematic diagram. The fifth diagram is a schematic diagram of the plane to obtain the optimal printing gap after the lifting part of the present invention. The sixth diagram is the schematic diagram of the initial print of the nozzle print pattern of the present invention for scanning by the deflection sensor. The seventh diagram is a schematic plan view of the compensation stitch offset angle after the rotary driver of the present invention moves The eighth figure is a schematic diagram of the gap adjustment process of the present invention. The ninth figure is a schematic diagram of the skew correction process of the present invention. [Element representative symbol 1 C. Known] Carrier part 7 Nozzle 7 〇 Reciprocating displacement part 8 Bearing seat 8 〇Screw 8 1 Bearing 8 2 1 [Invention] Carrier section 1

Page 13 550182 Simple illustration of ink cartridge 1 0 Nozzle 1 1 Gap sensor 1 2 Skew sensor 1 3 Frame connection surface 1 4 Convex ring 1 5 Ratchet 1 1 Signal connection line 1 7 Pivot L 1 8 Displacement 2 2 4〇4 2 4 4 4 6 Bearing 2 0 Lead screw hole 22 Dovetail groove 2 4 Drive unit 3 Rotary unit 30 Encoder 32 Gear 3 4 Pivot 3 6 Lift drive 41 C-ring 4 3 Encoder disc 45 Circuit board 5 Signal line 5 Soft pad 5 3 Paper feed tray 6 Detection plane 60 Initial check pattern 6 2 Paper feed direction 64 Belt tenon belt Vibration absorber Rotary driver C-ring coding disc Lifting part coding guide screw dovetail Convex strip circuit board prediction target 61 Parallel feed direction straight 6 3 Paper feed roller 65

Page 14 550182 The diagram briefly explains the initial distance between the nozzle and the far paper tray D 0 The optimal printing gap between the nozzle and the 4 plane of measurement D 1 The distance between the nozzle and the predicted target D 2 The inkjet gap adjustment value Δ D error angle Θ

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Claims (1)

550182 6. Scope of patent application 1. A multi-axis fault-tolerant two-dimensional automatic compensation system, which is used for multi-axis movement of equipment and equipment and records the result of the motion in a predicted target, including: a carrier department, a It is provided with a gap sensor and a deflection sensor; a reciprocating displacement unit for reciprocating displacement of the equipment and equipment connected to the multi-axial movement; and A driving device includes a rotating portion and a lifting portion. The rotating portion is pivotally connected to the carrier portion. The lifting portion is pivoted and reciprocated by the reciprocating displacement portion. The lifting straight line of the lifting part forms a space coordinate system of the X-Y plane and the Z axis; the gap sensor of the carrier part measures the distance between the carrier part and the predicted target, and the multi-axis fault tolerance two-dimensional automatic compensation system The built-in value comparison table of the predicted target object is compared, and the lifting part is further activated to make the vehicle part perform the Z-axis lifting adjustment, and the deflection sensor of the vehicle part scans the initial check pattern of its movement on the predicted target object. And compare it with the built-in value comparison table of the multi-axis fault-tolerant two-dimensional automatic compensation system, and further start the rotating part to drive the carrier part to adjust the angular displacement along the Z axis in the X-Y plane. 2. The multi-axial fault-tolerant two-dimensional automatic compensation system described in item 1 of the scope of patent application, wherein the multi-axially moving equipment is an inkjet printer, and the carrier unit includes the inkjet printer Nozzle. : 3. The multi-axis fault-tolerant two-dimensional automatic compensation system as described in item 1 of the scope of patent application, wherein one side of the carrier part is a pivot surface, and the pivot surface is provided with a convex ring, and the convex ring A pivot hole is provided, the pivot surface is provided with a ratchet portion. : 4. Automatic multi-axis fault tolerance as described in item 3 of the scope of patent application Page 16 550182 6. Patent application compensation system, wherein the reciprocating displacement part includes a lead screw hole. 5. The multi-axis fault-tolerant two-dimensional automatic compensation system as described in item 4 of the scope of the patent application, wherein a dovetail groove is provided on one side of the reciprocating displacement portion in parallel with the guide screw hole. 6. The multi-axis fault-tolerant two-dimensional automatic compensation system according to item 3 of the scope of patent application, wherein the rotating part of the moving device includes a rotating driver and an encoder, and a gear is connected to one side of the rotating driver, On the other side, a coding disc is convexly arranged, the gear meshes with the ratchet portion of the carrier part, and the periphery of the coding disc is accommodated in the encoder of the rotating part. 7. Multi-axial fault-tolerant two-dimensional automatic compensation as described in item 6 of the scope of patent application; reward system, wherein the rotating part is additionally provided with a pivot axis aligned with the axis of the rotating driver in the same straight line, and is aligned with the carrier The holes in the stern area of the convex ring are pivotally connected. 8. The multi-axial fault-tolerant two-dimensional automatic compensation system as described in item 5 of the scope of patent application, wherein the lifting portion includes a lifting driver and an encoder, and one side of the lifting driver is convexly connected with a lead screw, and The other side is convexly connected with a braided disk, the lead screw is screwed with the lead screw hole of the reciprocating displacement portion, and the periphery of the coding disk is accommodated in the encoder of the lifting portion. 9. The multi-axial fault-tolerant two-dimensional automatic compensation system as described in item 8 of the scope of patent application, wherein the lifting portion is provided with a dovetail ridge, and the dovetail ridge is accommodated in a dovetail groove of the reciprocating displacement portion. . 10. The multi-axis fault-tolerant two-dimensional automatic compensation system as described in item 6 of the scope of patent application, wherein the driving device is fixedly connected to a circuit board, and the circuit board is connected to a signal line to an encoder of the rotating part to provide angle control. Feedback signal, and the circuit board is electrically connected to a signal connection line for the multi-axial movement. Page 17 550182 VI. The scope of the patent application The equipment is provided with a wrong transmission fingerboard to provide a golden instruction. The circuit is soft. If a special compensation system is applied, the signal line goes to the liter and the circuit board and a machine equipment pass the finger. Board to provide a gold instruction, the circuit is soft to the rotary drive belongs to the contacts and the vehicle; the metal contacts of the board are also in the scope of item 8 of the drive device. Make the circuit of the lift driver, the metal contact of the contact and the carrier part and the circuit board and externally connected to make electrical contact on one side. A multi-axial fault-tolerant circuit board is further provided on the side, which provides clearance. The control loop is connected to the 'multi-axial' circuit board and an external circuit is used for electrical contact. A circuit soft is further provided on the side for transmission. The dimensional automatic board is connected to the signal circuit and the circuit is soft to transmit the cushion.