Production equipment and production method of high-precision flexible integrated circuit

Abstract

The invention discloses production equipment and a production method of a high-precision flexible integrated circuit, and belongs to the technical field of flexible circuit manufacturing. The production equipment comprises a visual alignment mechanism, a linear displacement mechanism, a gravure module and an operation control platform, by means of the arrangement of a displacement camera module comprising two cameras in the visual alignment mechanism and an imprinting platform arranged on an alignment assembly, alignment recognition before and after printing of a base material can be accurately achieved, and then through the combined arrangement of the linear displacement mechanism and the gravure module, the printing precision is improved; and the aligned base material can accurately finish printing of the conductive layer under the action of the gravure module. According to the production equipment and the production method, accurate printing of the conducting layers can be achieved, transverse errors and longitudinal errors generated when the different conducting layers are printed are accurately compensated, the printing accuracy of two or more different conducting layers on the base material to be printed is effectively guaranteed, and the printing efficiency is improved. The method is especially suitable for production of a high-precision flexible integrated circuit with a plurality of different conductive layers.

Description

Technical Field

[0001] The present invention belongs to the technical field of flexible circuit manufacturing, and in particular relates to a production device and a production method for a high-precision flexible integrated circuit. Background Art

[0002] Flexible integrated circuits are printed circuits made on flexible insulating substrates. Flexible integrated circuits have good electrical properties and can be flexibly arranged according to space requirements, with excellent application flexibility. In addition, flexible integrated circuits can be freely bent, rolled, folded, and moved and stretched in three-dimensional space. Therefore, they are widely used in flexible touch screens, artificial intelligence, wearable electronics, medical and other fields.

[0003] Existing flexible integrated circuits are mainly printed on flexible insulating substrates by screen printing. Although this method can meet the needs of practical applications to a certain extent, it still has the disadvantages of slow printing speed, poor ability to restore fine pattern lines, and low printing accuracy. It cannot fully meet the needs of high-precision processing of flexible integrated circuits, especially for the printing of multiple conductive layers. This restricts the development of high-precision flexible integrated circuits and has great application limitations. Summary of the invention

[0004] In response to one or more of the above defects or improvement needs of the prior art, the present invention provides a high-precision flexible integrated circuit production equipment and production method, which can accurately realize the printing processing of flexible integrated circuits and ensure the processing accuracy and quality of flexible integrated circuits.

[0005] To achieve the above-mentioned object, one aspect of the present invention provides a high-precision flexible integrated circuit production device, which includes a visual alignment mechanism, a linear displacement mechanism, a gravure die set and an operation control platform; The visual alignment mechanism includes an imprinting platform and a displacement camera module; the imprinting platform is arranged on the alignment component, and can be adjusted in three directions of UVW in a plane under the drive of the alignment component; the displacement camera module is arranged above the imprinting platform, and includes a pair of cameras respectively arranged on the plane displacement components, and the two cameras can be displaced in a plane under the drive of the corresponding plane displacement components to respectively identify the two end edges of the substrate to be printed or the two marking points on the substrate; The linear displacement mechanism comprises a movable platform which can reciprocate and translate in a first direction, and the stamping platform is arranged on the movable platform; The gravure printing module is arranged on one side of the visual alignment mechanism along the first direction, and comprises a gravure roller whose axis extends along the second direction and whose vertical height is adjustable; a scraper assembly for feeding the slurry and a driving assembly for driving the gravure roller to rotate are arranged corresponding to the gravure roller; The operation control platform is electrically connected to the visual alignment mechanism, the linear displacement mechanism and the electronic control components in the gravure module, respectively, and is used to control the operation of each mechanism and module; then, the substrate after the visual alignment on the imprinting platform can be translated to the bottom of the gravure roller under the drive of the linear displacement mechanism, and the printing of the flexible integrated circuit on the substrate to be printed can be completed under the rotation control of the gravure roller and the translation control of the linear displacement mechanism.

[0006] As a further improvement of the present invention, the displacement camera module includes two movable arms respectively extending along the second direction; one end of the two movable arms is respectively mounted on a translation guide rail extending along the first direction, and the two movable arms can reciprocate along the first direction on the translation guide rail; and The two moving arms are respectively provided with linear guide rails extending along the second direction, and the two cameras are respectively mounted on the corresponding linear guide rails, so that the two cameras can slide back and forth along the second direction on the linear guide rails.

[0007] As a further improvement of the present invention, the alignment assembly includes an alignment plate and a fixed plate arranged vertically at intervals, and a three-axis alignment module arranged between the two plates; The fixed plate is installed on the moving platform and is used for reciprocating with the moving platform; the alignment plate is used for bearing and fixing the imprinting platform.

[0008] As a further improvement of the present invention, the embossing platform includes a substrate and an embossing adhesive layer arranged on the top surface of the substrate; the substrate is fixedly connected to the alignment plate and can be aligned and adjusted following the alignment plate.

[0009] As a further improvement of the present invention, the linear displacement mechanism includes a screw rod and a first motor extending along a first direction; Both ends of the screw rod are rotatably supported on the support plates respectively, and the end thereof away from the visual alignment mechanism is connected to the output shaft of the first motor, and the movable platform is threadedly assembled on the screw rod, and reciprocating translation in the first direction is achieved through the rotation control of the screw rod.

[0010] As a further improvement of the present invention, the gravure printing module comprises lifting components arranged in pairs, and both lifting components comprise a gravure printing wall panel, a machine base wall panel, a lifting guide rail and a lifting cylinder; The lifting guide rail is vertically arranged on the base wall panel, and the slider on the lifting guide rail is assembled and connected with the gravure wall panel, and the output shaft of the lifting cylinder is assembled and connected with the slider; The two ends of the gravure roller are respectively rotatably connected to the corresponding gravure wallboards, and the driving assembly includes a second motor connected to a gravure wallboard, and the output shaft of the second motor is connected to the end of the gravure roller, which is used to drive the gravure roller to rotate around the axis; then through the synchronous control of the two lifting cylinders and the rotation control of the gravure roller, the lifting and lowering adjustment of the gravure roller can be realized, and the printing of the flexible integrated circuit can be completed.

[0011] As a further improvement of the present invention, the scraper assembly includes a scraper obliquely arranged on one side of the gravure roller; The axis of the scraper is parallel to the axis of the gravure roller, and the side of the scraper facing away from the gravure roller is clamped and fixed by two stacked pressing plates; the two ends of the two pressing plates are respectively connected to the scraper cylinder whose output shaft extends along the first direction, and the two scraper cylinders are respectively connected to the opposite side wall surfaces of the two gravure wallboards; and Ink-blocking blocks are provided at both axial ends of the two pressure plates, the bottoms of the two ink-blocking blocks are not higher than the bottom of the scraper, and protrude toward one side of the gravure roller respectively. When the scraper abuts against the outer wall of the gravure roller with its bottom, one side of the ink-block abuts against the outer peripheral wall of the gravure roller, thereby forming a V-shaped groove for accommodating the slurry between the gravure roller and the scraper.

[0012] As a further improvement of the present invention, the scraper assembly is arranged on a side of the gravure roller close to the visual alignment mechanism; and / or Pressure gauges are respectively arranged in the two lifting assemblies to detect the pressure applied on the stamping platform by the two ends of the gravure roller.

[0013] As a further improvement of the present invention, the operation control platform includes a control cabinet and a main control screen arranged on the control cabinet; The visual alignment mechanism, the linear displacement mechanism and the gravure printing module are respectively arranged on the top of the control cabinet, and the main control screen is electrically connected to the electrical control components in each mechanism and module for controlling the entire device and adjusting related parameters.

[0014] Another aspect of the present invention provides a method for producing a high-precision flexible integrated circuit, which is used for printing at least two different conductive layers on the same substrate to be printed; the production method is completed using the high-precision flexible integrated circuit production equipment, and includes the following process: (1) Assembling a gravure roller corresponding to the first conductive layer in the gravure printing module, and placing a substrate to be printed on the stamping platform and fixing it; aligning the substrate to be printed by the visual alignment mechanism and adjusting it to the expected initial position by the alignment assembly; thereafter, driving the movable platform to translate toward the gravure printing module by the linear displacement mechanism; (2) controlling the operation of the scraper assembly of the gravure printing module so that the scraper of the scraper assembly abuts against the surface of the gravure roller and the slurry is fed; controlling the operation of the two lifting assemblies and the second motor of the gravure printing module so that the gravure roller rotates and moves vertically, coating the slurry on the periphery of the gravure roller and aligning the gravure roller with the substrate to be printed, until the initial position of the pattern of the gravure roller abuts against the printing start position on the substrate to be printed; (3) controlling the first motor and the second motor to continue to work, completing the printing of the conductive layer on the substrate to be printed during the displacement of the mobile platform, and controlling the gravure printing module and the linear displacement mechanism to reset after the printing is completed; (4) removing the gravure roller on the gravure printing module and replacing the gravure roller corresponding to the next conductive layer; removing the substrate to be printed on which the first conductive layer has been printed from the stamping platform; replacing a blank spare substrate on the stamping platform and adjusting it to the expected initial position by the visual alignment mechanism; (5) repeating processes (2) and (3) to complete the printing of a conductive layer on the spare substrate, and the visual alignment mechanism identifies and records the positions of the two marking points obtained by printing on the spare substrate; (6) removing the spare substrate, and placing the substrate to be printed after the previous conductive layer is printed again on the imprinting platform; controlling the visual alignment mechanism to complete the recognition of the positions of the two marking points on the substrate to be printed, and controlling the alignment component to adjust the position of the substrate to be printed so that the positions of the two marking points on the substrate to be printed coincide with the positions of the two marking points obtained in process (5); (7) repeating processes (2) and (3) to print a subsequent conductive layer on the previous conductive layer of the substrate to be printed; (8) If the number of conductive layers is more than two, the processes (4) to (7) are repeated in sequence after the printing of the previous conductive layer is completed until the layered printing of multiple conductive layers on the substrate to be printed is completed.

[0015] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0016] In general, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects: (1) The high-precision flexible integrated circuit production equipment of the present invention comprises a visual alignment mechanism, a linear displacement mechanism, a gravure printing module and an operation control platform. By utilizing the displacement camera module including two cameras in the visual alignment mechanism and the setting of the stamping platform arranged on the alignment component, the alignment recognition before and after the substrate is printed can be accurately realized. Then, by the combination setting of the linear displacement mechanism and the gravure printing module, the conductive layer of the aligned substrate can be accurately printed under the action of the gravure printing module, thereby effectively ensuring the accuracy of the printing of the conductive layer on the substrate and improving the accuracy of the printed production of flexible integrated circuits.

[0017] (2) The method for producing high-precision flexible integrated circuits of the present invention is implemented by using a production device with an optimal design. Through the corresponding control of the three printing processes, it is possible to accurately realize the printing of two different conductive layers on the same substrate to be printed. By using the precise servo adjustment of the alignment component, the lateral error and longitudinal error when printing different conductive layers are accurately compensated, effectively ensuring the accuracy of printing two or more different conductive layers on the substrate to be printed, thereby completing the production of high-precision flexible integrated circuits. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 Schematic diagram of the overall structure of a production device for a high-precision flexible integrated circuit according to an embodiment of the present invention; Figure 2 is a structural schematic diagram of a visual alignment mechanism of a production device in an embodiment of the present invention; Figure 3 is a schematic structural diagram of a linear displacement mechanism of a production device in an embodiment of the present invention; Figure 4 2 is a schematic diagram of the three-dimensional structure of the gravure printing module of the production equipment in the embodiment of the present invention; Figure 5 is a structural cross-sectional view of a gravure die set of a production device according to an embodiment of the present invention; Figure 6 Schematic diagram of the working state of the gravure printing module of the production equipment in the embodiment of the present invention; Figure 7 It is a structural schematic diagram of an operation control platform of a production device in an embodiment of the present invention; Figure 8 is a schematic diagram of the system architecture of a production device for high-precision flexible integrated circuits according to an embodiment of the present invention; Fig. 9is a schematic diagram of a process for printing a high-precision flexible integrated circuit using a production device in an embodiment of the present invention; Fig.10 It is a schematic diagram of a process of using a visual alignment mechanism to perform deviation alignment control in an embodiment of the present invention; In all the drawings, the same reference numerals represent the same technical features, specifically: 1. Visual alignment mechanism; 2. Linear displacement mechanism; 3. Gravure printing module; 4. Operation control platform; 101, first camera; 102, first mounting plate; 103, first locking knob; 104, first fixed seat; 105, first linear guide; 106, first moving arm; 107, first translation guide; 108, display; 109, second moving arm; 110, second linear guide; 111, second fixed seat; 112, second locking knob; 113, second mounting plate; 114, second camera; 115, imprinting platform; 1151, imprinting adhesive layer; 1152, substrate; 116, alignment component; 1161, alignment plate; 1162, three-axis alignment module; 1163, fixed plate; 201, first motor; 202, first mounting seat; 203, first support plate; 204, guide roller base; 205, first coupling; 206, lead screw; 207, nut; 208, second translation guide rail; 209, mobile platform; 210, second support plate; 301, second motor; 302, reducer; 303, second mounting seat; 304, second coupling; 305, first pressure gauge; 306, first bearing block; 307, first ink block; 308, upper pressure plate; 309, gravure roller; 310, second locking member; 311, second ink block; 312, second bearing block; 313, second pressure gauge; 314, second bearing; 315, third lifting guide rail; 316, fixing pin; 317, second cylinder; 318, second fixing block; 319, The second machine base wall panel; 320, the fourth lifting rail; 321, the second gravure wall panel; 322, the second scraper cylinder; 323, the lower pressure plate; 324, the first lifting rail; 325, the first cylinder; 326, the second lifting rail; 327, the first machine base wall panel; 328, the first scraper cylinder; 329, the first gravure wall panel; 330, the first fixed block; 331, the scraper fixed seat; 332, the first locking member; 333, the first bearing; 334, the scraper; 335, the slurry; 336, the substrate to be printed; 41. Main control screen; 42. Control cabinet; 43. Adjustment foot cups. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions 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 embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] In the description of the present invention, it should be understood that, unless otherwise expressly specified and limited, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "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.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] Example: See also Figure 1 to Figure 7 The production equipment of high-precision flexible integrated circuits in the preferred embodiment of the present invention includes a visual alignment mechanism 1, a linear displacement mechanism 2, a gravure printing module 3 and an operation control platform 4.

[0026] Among them, the visual alignment mechanism 1 includes an imprinting platform 115 and a displacement camera module. By correspondingly setting the displacement camera module above the imprinting platform 115, the position of the material on the imprinting platform 115 can be accurately obtained.

[0027] Specifically, the imprinting platform 115 is arranged on the alignment component 116, and can be adjusted in the UVW three directions in the plane under the drive of the alignment component 116; it should be noted that the UVW three directions here refer to the horizontal direction (i.e., the XY axis direction) and the θ angle rotation direction (i.e., the direction of rotation around the Z axis) that are orthogonally arranged in the plane.

[0028] At the same time, the displacement camera module is arranged above the imprinting platform 115, which includes a pair of cameras respectively arranged on the plane displacement components. The two cameras can be displaced in the plane under the drive of their corresponding plane displacement components to respectively identify the two end edges of the substrate 336 to be printed or the two marking points obtained by printing on the substrate 336 to be printed.

[0029] Furthermore, the linear displacement mechanism 2 is arranged corresponding to the imprinting platform 115, which includes a mobile platform 209 that can reciprocate in a first direction. The imprinting platform 115 is arranged on the mobile platform 209. The position of the imprinting platform 115 can be adjusted by reciprocating in the first direction of the mobile platform 209.

[0030] More specifically, the gravure printing module 3 is arranged on one side of the visual alignment mechanism 1 along the first direction, and includes a gravure roller 309 whose axis extends along the second direction and whose vertical height is adjustable, and a scraper assembly for loading the slurry 335 and a driving assembly for driving the gravure roller 309 to rotate are arranged corresponding to the gravure roller 309; by coating and loading the slurry 335 on the periphery of the gravure roller 309 and controlling the rotation of the gravure roller 309, the slurry 335 can be printed onto the material according to the pattern on the periphery of the gravure roller 309.

[0031] In addition, the operation control platform 4 is electrically connected to the visual alignment mechanism 1, the linear displacement mechanism 2 and the electronic control components in the gravure module 3, respectively, and is used to control each mechanism and module to complete the corresponding working process; then the substrate 1152 after the visual alignment on the imprinting platform 115 can be translated to the bottom of the gravure roller 309 under the drive of the linear displacement mechanism 2, and the printing of the flexible integrated circuit on the substrate 336 to be printed can be completed under the rotation control of the gravure roller 309 and the translation control of the linear displacement mechanism 2.

[0032] Further preferably, the displacement camera module includes two movable arms extending along the second direction; one end of the two movable arms is respectively mounted on a translation guide rail extending along the first direction, and the two movable arms can reciprocate along the first direction on the translation guide rail. At the same time, the two movable arms are respectively provided with a linear guide rail extending along the second direction, and the two cameras are respectively mounted on the corresponding linear guide rails, so that the two cameras can slide back and forth along the second direction on the linear guide rails.

[0033] For example, in Figure 2 In the preferred embodiment shown, the displacement camera module is arranged on a fixed frame on one side of the imprinting platform 115 along the second direction, and the height of the fixed frame is higher than the height of the imprinting platform 115, and further corresponds to the focusing range of the two cameras. At the same time, corresponding to the two cameras (i.e., the first camera 101 and the second camera 114), movable arms (i.e., the first movable arm 106 and the second movable arm 109) are respectively arranged, and a first translation guide rail 107 extending along the first direction is arranged on the top of the fixed frame, and one end of the two movable arms along the second direction is respectively slidably assembled with the first translation guide rail 107, so that the two movable arms can be reciprocated and translated along the axial direction of the first translation guide rail 107 under control.

[0034] More specifically, in actual configuration, the first camera 101 and the second camera 114 are configured in the same manner or as mirror images of each other. Figure 2 In the preferred embodiment shown, the arrangement of the two cameras is a mirror image of each other. At this time, the arrangement of the first camera 101 is taken as an example to illustrate the arrangement of the camera on the mobile arm.

[0035] The first camera 101 is preferably a CCD camera, and corresponding to its arrangement on the first moving arm 106, a first mounting plate 102, a first fixing seat 104 and a first linear guide rail 105 are sequentially arranged. The first camera 101 is mounted on the first mounting plate 102, the first fixing seat 104 is connected to the slider on the first linear guide rail 105, and the first mounting plate 102 is slidably connected to the first fixing seat 104, and can be locked and fixed by the first locking knob 103. Accordingly, the first linear guide rail 105 extends along the second direction, and is arranged on the side of the first moving arm 106 facing the second moving arm 109. The displacement adjustment of the first camera 101 in the second direction can be achieved by the reciprocating sliding of the first fixing seat 104 on the first linear guide rail 105; and the displacement adjustment of the first camera 101 in the first direction can be achieved by the reciprocating sliding of the first moving arm 106 on the first translation guide rail 107.

[0036] It can be understood that the setting form of the second camera 114 is similar to that of the first camera 101. It is set on the second linear guide rail 110 through the second mounting plate 113, the second locking knob 112, and the second fixed seat 111, and finally realizes the displacement adjustment of the second camera 114 in the plane.

[0037] In actual configuration, the sliding of each fixed seat on the corresponding linear guide rail and the sliding of each movable arm on the first translation guide rail 107 are completed by a correspondingly configured driving mechanism, and each driving mechanism is electrically connected to the operation control platform 4 .

[0038] More preferably, a display 108 is provided on the fixing frame, which is electrically connected to the two cameras respectively, and is used to display the shooting fields of view of the two cameras in real time.

[0039] Furthermore, the imprinting platform 115 in the preferred embodiment is as follows Figure 2 As shown in , it includes a substrate 1152 and an embossed adhesive layer 1151 disposed on the top surface of the substrate 1152, and the bottom of the substrate 1152 is positioned and fixed on the alignment component 116. In a preferred embodiment, the alignment component 116 includes an alignment plate 1161 and a fixing plate 1163 arranged vertically at intervals, the alignment plate 1161 is arranged above the fixing plate 1163, and a three-axis alignment module 1162 is arranged between the two.

[0040] In more detail, the fixed plate 1163 is mounted on the mobile platform 209 and can reciprocate with the mobile platform 209; the alignment plate 1161 is connected to the base plate 1152 at the bottom of the imprinting platform 115, and is used to support the imprinting platform 115 and realize the alignment adjustment of the substrate 336 to be printed on the imprinting platform 115. Through the control of the three-axis alignment module 1162, the alignment plate 1161 can be adjusted in three directions of UV and W relative to the fixed plate 1163, thereby completing the alignment adjustment of the substrate 336 to be printed.

[0041] Furthermore, the linear displacement mechanism 2 in the preferred embodiment includes a screw rod 206 and a first motor 201 extending in the first direction. The two ends of the screw rod 206 are respectively rotatably supported on the support plate, and the end thereof away from the visual alignment mechanism 1 is connected to the output shaft of the first motor 201, and the mobile platform 209 is threadedly assembled on the screw rod 206, and the two form a threaded screw mechanism, and the reciprocating translation of the mobile platform 209 in the first direction can be achieved through the rotation control of the screw rod 206.

[0042] For example, in Figure 3 In the preferred embodiment shown, the linear displacement mechanism 2 includes a guide roller base 204 and two support plates (i.e., a first support plate 203 and a second support plate 210) arranged corresponding to the screw rod 206, the two support plates are mounted on the guide roller base 204, and the two ends of the screw rod 206 are rotatably connected to the two support plates. At the same time, the first motor 201 is arranged at one end of the guide roller base 204, and a first mounting seat 202 is arranged on the guide roller base 204 corresponding to the installation of the first motor 201, so that the output shaft of the first motor 201 is connected to one end of the screw rod 206 through a first coupling 205. In addition, corresponding to the assembly connection between the screw rod 206 and the mobile platform 209, a nut 207 with an axis along the first direction is arranged on the mobile platform 209, and the screw rod 206 and the nut 207 are threadedly matched.

[0043] In more detail, corresponding to the reciprocating translation of the mobile platform 209 in the first direction, a second translation guide rail 208 is extended along the first direction on the guide roller base 204, and the bottom of the mobile platform 209 is connected to a slider assembled on the second translation guide rail 208. Then, under the control of the first motor 201, the lead screw 206 can rotate around the axis, which is then converted into reciprocating motion of the mobile platform 209 along the first direction.

[0044] Furthermore, the gravure module 3 in the preferred embodiment includes a pair of lifting components, both of which include a gravure wall panel, a base wall panel, a lifting guide rail and a lifting cylinder. The lifting guide rail is vertically arranged on the base wall panel, and is assembled and connected with the gravure wall panel through a slider on the lifting guide rail, so that the gravure wall panel can be vertically reciprocated and lifted under the guidance of the lifting guide rail. At the same time, the output shaft of the lifting cylinder extends vertically and is assembled and connected with the slider to drive the gravure wall panel to perform vertical lifting movement.

[0045] In more detail, the two ends of the gravure roller 309 are respectively rotatably connected to the corresponding gravure wall panels, and the driving assembly includes a second motor 301 connected to a gravure wall panel, and the output shaft of the second motor 301 is connected to the end of the gravure roller 309, which is used to drive the gravure roller 309 to rotate around the axis; then through the synchronous control of the two lifting cylinders and the rotation control of the gravure roller 309, the lifting and rotation control of the gravure roller 309 can be realized, and the printing of the flexible integrated circuit can be completed.

[0046] For example, Figure 4 , Figure 5 In the specific embodiment of the embodiment of the embodiment of the present invention, the gravure printing module 3 in the preferred embodiment includes two lifting components that are mirror images of each other. Here, the lifting component connected to the second motor 301 is taken as an example to specifically explain the structural setting form of the lifting component.

[0047] In this embodiment, the lifting assembly includes a bottom plate at the bottom, which can be connected to the guide roller base 204, and the first machine base wall panel 327 is vertically arranged on the bottom plate, and a lifting guide rail is vertically arranged on one side wall (the side facing the other lifting assembly) of the first machine base wall panel 327. In order to ensure the reliability of the subsequent vertical movement of the first gravure wall panel 329, the aforementioned lifting guide rails are a pair of parallel arrangements, namely, the first lifting guide rail 324 and the second lifting guide rail 326. At this time, the two ends of the first gravure wall panel 329 are respectively connected to the sliders on the two lifting guide rails, so that the first gravure wall panel 329 can be vertically reciprocated under the guidance of the two lifting guide rails.

[0048] Correspondingly, a first cylinder 325 is provided for vertical driving of the first gravure printing wallboard 329, and its output shaft is connected to the bottom of the first gravure printing wallboard 329, thereby correspondingly driving the first gravure printing wallboard 329 to reciprocate vertically.

[0049] In more detail, for the connection of one end of the gravure roller 309 to the first gravure wallboard 329, a semicircular groove is provided on the top of the first gravure wallboard 329, and one end of the gravure roller 309 is pressed and fixed in the semicircular groove by the first bearing pressing block 306 after the first bearing 333 is sleeved. Through the fixed connection between the first bearing pressing block 306 and the first gravure wallboard 329, the rotational connection between one end of the gravure roller 309 and the first gravure wallboard 329 can be achieved.

[0050] In addition, a second mounting seat 303 is installed on the side of the first gravure wall panel 329 facing away from the other lifting component for installing the second motor 301. Then the output shaft of the second motor 301 is connected to the end of the gravure roller 309 through the reducer 302 and the second coupling 304. The rotation of the gravure roller 309 can be controlled by driving the second motor 301.

[0051] It should be noted that the setting form of another lifting assembly for supporting the other end of the gravure roller 309 is similar to the setting form of the aforementioned lifting assembly, wherein the second machine base wall panel 319 is set on a bottom plate, and the third lifting guide rail 315 and the fourth lifting guide rail 320 are set corresponding to the second machine base wall panel 319, and the second cylinder 317 is set corresponding to the second gravure wall panel 321, and the output shaft end of the second cylinder 317 is inserted into the side wall of the second gravure wall panel 321 through the fixing pin 316, so as to ensure that the second cylinder 317 can accurately drive the second gravure wall panel 321 to move vertically, and the two lifting guide rails complete the movement guidance. In addition, the other end of the gravure roller 309 is also rotatably assembled on the second gravure wall panel 321 through the second bearing block 312 and the second bearing 314.

[0052] Further, the scraper assembly of the gravure printing module 3 is arranged on one side of the gravure roller 309, and its axis is parallel to the axis of the gravure roller 309, and includes a scraper 334 arranged obliquely on one side of the gravure roller 309. In actual arrangement, the scraper assembly is preferably located above the horizontal section passing through the axis of the gravure roller 309, such as Figure 5 At the same time, the bottom of the scraper 334 is inclined toward one side of the gravure roller 309, that is, the horizontal distance between the scraper 334 and the gravure roller 309 decreases from the top to the bottom, and when the bottom of the scraper 334 abuts against the outer periphery of the gravure roller 309, a "V-shaped" material storage groove is formed.

[0053] In more detail, the side of the scraper 334 facing away from the gravure roller 309 is clamped and fixed by two stacked pressure plates (i.e., the upper pressure plate 308 and the lower pressure plate 323), as shown in FIG. Figure 5 As shown in . The two pressing plates extend along the second direction, and locking members, namely the first locking member 332 and the second locking member 310, are respectively provided at both ends corresponding to the fixation between the two pressing plates. At the same time, fixing blocks, namely the first fixing block 330 and the second fixing block 318, are respectively provided at the installations corresponding to the two ends of the two pressing plates. In actual settings, scraper fixing seats 331 extending along the second direction are provided corresponding to the two fixing blocks. At this time, the two locking members pass through the two pressing plates and are connected to the scraper fixing seats 331, and the two ends of the scraper fixing seats 331 are respectively connected to the two fixing blocks.

[0054] Furthermore, scraper cylinders are respectively provided on the two fixed blocks corresponding to the side walls of the two gravure wallboards, namely, a first scraper cylinder 328 provided on the first gravure wallboard 329 and a second scraper cylinder 322 provided on the second gravure wallboard 321. The output shafts of the two scraper cylinders extend in a first direction, and the driving process of the scraper 334 approaching or moving away from the gravure roller 309 can be realized by controlling the two scraper cylinders.

[0055] More specifically, ink-blocking blocks, namely, a first ink-blocking block 307 and a second ink-blocking block 311, are respectively provided at the axial ends of the scraper 334. The two ink-blocking blocks are preferably connected to the corresponding pressure plates, and the bottoms of the two ink-blocking blocks are not higher than the bottom of the scraper 334, and they protrude toward one side of the gravure roller 309 respectively, so that when the scraper 334 abuts against the outer wall of the gravure roller 309 with the bottom, one side of the two ink-blocking blocks abuts against the outer peripheral wall of the gravure roller 309, thereby forming a V-shaped groove between the gravure roller 309 and the scraper 334, and realizing the closure of the axial ends of the V-shaped groove, so as to prevent the slurry 335 loaded into the V-shaped groove from leaking from the axial ends of the V-shaped groove.

[0056] It is not difficult to imagine that in actual setting, the side of the two ink blocking blocks close to the gravure roller 309 is set to be an arc-shaped wall surface adapted to the curvature of the outer peripheral wall surface of the gravure roller 309, such as Figure 5 as shown in .

[0057] Further preferably, the scraper assembly is arranged on the side of the gravure roller 309 close to the visual alignment mechanism 1, such as Figure 3 Such arrangement can fully match the displacement direction of the mobile platform 209, by controlling the cutting speed direction of the gravure roller 309 at the bottom to be consistent with the displacement direction of the mobile platform 209, the printing of the substrate 336 to be printed on the mobile platform 209 can be completed.

[0058] More preferably, pressure gauges are respectively provided in the two lifting assemblies, namely the first pressure gauge 305 and the second pressure gauge 313, which are further arranged between the gravure wall panels and the machine base wall panels of the two lifting assemblies, and are used to detect the pressure applied to the imprinting platform 115 by both ends when the gravure roller 309 is actually working.

[0059] By combining the gravure printing module 3, the linear displacement mechanism 2 and the visual alignment mechanism 1, the printing operation of the flexible integrated circuit on the substrate 336 to be printed on the imprinting platform 115 can be accurately achieved. Figure 6 As shown in the figure, it fully guarantees the accuracy and reliability of the multi-layer circuit printing process.

[0060] In more detail, corresponding to the control of the electronic control components in each mechanism and module, the operation control platform 4 in the preferred embodiment is as follows: Figure 7 As shown in the figure, it includes a main control screen 41 and a control cabinet 42. The main control screen 41 is supported and arranged on the top of the control cabinet 42, and the visual alignment mechanism 1, the linear displacement mechanism 2 and the gravure module 3 are respectively arranged on the top of the control cabinet 42. The main control screen 41 is electrically connected to the electric control components in each mechanism and module, and the control operation of the entire device and the adjustment of related parameters can be performed through the setting of the main control screen 41.

[0061] In addition, it is further preferred that a plurality of adjustment foot cups 43 are provided at the bottom of the control cabinet 42 to support the control cabinet 42 and adjust the level of the control cabinet 42 and the mechanisms on the top thereof. Preferably, a shock-absorbing pad is preferably provided at the bottom of each adjustment foot cup 43 to reduce vibration during operation of the equipment and improve the operation accuracy of the equipment.

[0062] By correspondingly setting the components in the operating control platform 4, the following can be formed: Figure 8 The system architecture diagram shown in . The main controller completes the control of the gravure module 3, the linear module (linear displacement mechanism 2) and the three-axis alignment module 1162, and the main control screen 41 completes the display of relevant control parameters, visual inspection results, and operation process.

[0063] Using the above-mentioned production equipment, a production method for high-precision flexible integrated circuits is further proposed for printing multiple different conductive layers on the same substrate, which preferably includes the following process: (1) Printing a first conductive layer on the substrate 336 to be printed; Specifically, the gravure roller 309 corresponding to the first conductive layer pattern is replaced in the gravure printing module 3, relevant parameters are set on the main control screen 41, and the device is operated to move.

[0064] The substrate 336 to be printed is placed on the embossing adhesive layer 1151 on the surface of the embossing platform 115; the visual alignment mechanism 1 is controlled to collect the edge positions of both ends of the substrate 336 to be printed, and the deviation values ​​of both ends of the substrate 336 to be printed are determined; thereafter, the three-axis alignment module 1162 is controlled to work, and the position of the substrate 336 to be printed is adjusted to the expected initial position; Furthermore, the two scraper cylinders in the gravure module 3 are adjusted to work so that the scraper 334 moves close to the gravure roller 309 until the bottom of the scraper 334 is pressed against the surface of the gravure roller 309; a certain amount of slurry 335 is injected into the V-groove formed by the scraper 334 and the gravure roller 309, and the second motor 301 is controlled to work so that the slurry 335 is evenly coated on the outer peripheral surface of the gravure roller 309.

[0065] Afterwards, the linear displacement mechanism 2 is controlled to drive the moving platform 209 to move, and the aligned substrate 336 to be printed is driven to one side of the gravure module 3; at the same time, the two lifting components of the gravure module 3 are controlled to descend synchronously until the graphic initial position of the gravure roller 309 is vertically pressed against the printing starting position of the substrate 336 to be printed; after that, the first motor 201 and the second motor 301 are controlled to work synchronously, so that the gravure roller 309 completes the printing of the first circuit layer on the top surface of the substrate while the substrate 336 to be printed is linearly displaced.

[0066] In a preferred embodiment, the motors of the gravure roller 309 and the linear displacement mechanism 2 are controlled by electronic cam technology, so as to achieve precise alignment between the graphic printing starting point on the gravure roller 309 and the substrate starting point on the imprinting platform 115 .

[0067] In addition, it can be understood that in order to ensure the printing quality of the gravure roller 309 in the gravure printing module 3, the tangential speed of the bottom of the gravure roller 309 is preferably maintained in the same form as the translation speed of the moving platform 209.

[0068] (2) performing position compensation before printing the second conductive layer to obtain compensation parameters of the substrate after replacing the gravure roller 309; Specifically, after completing the printing of the first conductive layer, the two lifting components of the gravure printing module 3 are controlled to rise, and the gravure roller 309 is replaced with a gravure roller 309 corresponding to the second conductive layer pattern; at the same time, the mobile platform 209 is driven by the linear displacement mechanism 2 to translate to the initial position of the visual alignment mechanism 1.

[0069] At this time, the substrate 336 to be printed, on which the first conductive layer has been printed, is removed from the stamping platform 115, and is replaced with a blank spare substrate that is identical to the substrate 336 to be printed, and the spare substrate is placed on the stamping platform 115 in the same manner as the substrate 336 to be printed; thereafter, the visual alignment mechanism 1 identifies the spare substrate and adjusts it to the expected initial position.

[0070] Furthermore, the linear displacement mechanism 2 is controlled to work, the mobile platform 209 is driven to the bottom of the gravure module 3, and the two lifting components of the gravure module 3 are controlled at the same time, so that the gravure roller 309 at this time abuts against the edge to be printed of the spare substrate at the initial position of the pattern; finally, the two motors are controlled to work synchronously to complete the printing of the second conductive layer pattern on the spare substrate.

[0071] After printing is completed, the gravure roller 309 is controlled to rise and reset, and then the linear displacement mechanism 2 is controlled to drive the mobile platform 209 to move to the visual alignment mechanism 1. The visual alignment mechanism 1 identifies the two marking points obtained by printing on the spare substrate and determines the positions of the two marking points.

[0072] (3) Printing a second conductive layer on the substrate 336 to be printed; Specifically, the spare substrate is removed, and the substrate to be printed 336 on which the first conductive layer is printed is placed at a fixed position on the surface of the imprinting platform 115; thereafter, the three-axis alignment module 1162 is controlled to work according to the positions of the two marking points, so that the positions of the two marking points on the substrate to be printed 336 coincide with the positions of the two marking points after the spare substrate is printed as recorded in the last printing. The operation process of the entire alignment process is as follows: Fig.10 as shown in .

[0073] Finally, the linear displacement mechanism 2 and the gravure printing module 3 are controlled to work, so as to complete the alignment of the second gravure roller 309 and the substrate 336 to be printed and the printing process of the second conductive layer on the substrate 336 to be printed.

[0074] Through the above process, a substrate with two different conductive layers can be obtained, thereby completing the printing production of flexible integrated circuits. The entire production process is as follows: Fig. 9 as shown in .

[0075] It can be understood that when the number of conductive layers is more than two, after completing the printing of the first conductive layer in (1), the operation processes in multiple groups (2) and (3) can be cycled in sequence to complete the printing of a flexible integrated circuit with multiple different conductive layers.

[0076] For the production method of the flexible integrated circuit in the preferred embodiment, the corresponding control of the three printing processes is used to accurately realize the printing of two different conductive layers on the same substrate 336 to be printed. Through the precise servo adjustment of the alignment component 116, the lateral error and longitudinal error when printing different conductive layers are accurately compensated, effectively ensuring the accuracy of printing two or more different conductive layers on the substrate 336 to be printed, and completing the production of high-precision flexible integrated circuits. It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision flexible integrated circuit production equipment, characterized in that: It includes visual alignment mechanism, linear displacement mechanism, gravure printing module and operation control platform; The visual alignment mechanism includes an imprinting platform and a displacement camera module; the imprinting platform is arranged on the alignment component, and can be adjusted in three directions of UVW in a plane under the drive of the alignment component; the displacement camera module is arranged above the imprinting platform, and includes a pair of cameras respectively arranged on the plane displacement components, and the two cameras can be displaced in a plane under the drive of the corresponding plane displacement components to respectively identify the two end edges of the substrate to be printed or the two marking points on the substrate; The linear displacement mechanism comprises a movable platform which can reciprocate and translate in a first direction, and the stamping platform is arranged on the movable platform; The gravure printing module is arranged on one side of the visual alignment mechanism along the first direction, and comprises a gravure roller whose axis extends along the second direction and whose vertical height is adjustable; a scraper assembly for feeding the slurry and a driving assembly for driving the gravure roller to rotate are arranged corresponding to the gravure roller; The operation control platform is electrically connected to the visual alignment mechanism, the linear displacement mechanism and the electronic control components in the gravure module, respectively, and is used to control the operation of each mechanism and module; then, the substrate after the visual alignment on the imprinting platform can be translated to the bottom of the gravure roller under the drive of the linear displacement mechanism, and the printing of the flexible integrated circuit on the substrate to be printed can be completed under the rotation control of the gravure roller and the translation control of the linear displacement mechanism.

2. The high-precision flexible integrated circuit production equipment according to claim 1, characterized in that: The displacement camera module comprises two movable arms respectively extending along the second direction; one end of the two movable arms is respectively mounted on a translation guide rail extending along the first direction, and the two movable arms can reciprocate and translate along the first direction on the translation guide rail; and The two moving arms are respectively provided with linear guide rails extending along the second direction, and the two cameras are respectively mounted on the corresponding linear guide rails, so that the two cameras can slide back and forth along the second direction on the linear guide rails.

3. The high-precision flexible integrated circuit production equipment according to claim 2, characterized in that: The alignment assembly includes an alignment plate and a fixed plate arranged vertically at intervals, and a three-axis alignment module arranged between the two plates; The fixed plate is installed on the moving platform and is used for reciprocating with the moving platform; the alignment plate is used for bearing and fixing the imprinting platform.

4. The high-precision flexible integrated circuit production equipment according to claim 3, characterized in that: The embossing platform comprises a substrate and an embossing adhesive layer arranged on the top surface of the substrate; the substrate is fixedly connected to the alignment plate and can be aligned and adjusted following the alignment plate.

5. The high-precision flexible integrated circuit production equipment according to any one of claims 1 to 4, characterized in that: The linear displacement mechanism includes a lead screw and a first motor extending in a first direction; Both ends of the screw rod are rotatably supported on the support plates respectively, and the end thereof away from the visual alignment mechanism is connected to the output shaft of the first motor, and the movable platform is threadedly assembled on the screw rod, and reciprocating translation in the first direction is achieved through the rotation control of the screw rod.

6. The high-precision flexible integrated circuit production equipment according to any one of claims 1 to 4, characterized in that: The gravure printing module comprises lifting components arranged in pairs, and both lifting components comprise a gravure printing wall panel, a machine base wall panel, a lifting guide rail and a lifting cylinder; The lifting guide rail is vertically arranged on the base wall panel, and the slider on the lifting guide rail is assembled and connected with the gravure wall panel, and the output shaft of the lifting cylinder is assembled and connected with the slider; The two ends of the gravure roller are respectively rotatably connected to the corresponding gravure wallboards, and the driving assembly includes a second motor connected to a gravure wallboard, and the output shaft of the second motor is connected to the end of the gravure roller, which is used to drive the gravure roller to rotate around the axis; then through the synchronous control of the two lifting cylinders and the rotation control of the gravure roller, the lifting and lowering adjustment of the gravure roller can be realized, and the printing of the flexible integrated circuit can be completed.

7. The high-precision flexible integrated circuit production equipment according to claim 6, characterized in that: The scraper assembly comprises a scraper obliquely arranged on one side of the gravure roller; The axis of the scraper is parallel to the axis of the gravure roller, and the side of the scraper facing away from the gravure roller is clamped and fixed by two stacked pressing plates; the two ends of the two pressing plates are respectively connected to the scraper cylinder whose output shaft extends along the first direction, and the two scraper cylinders are respectively connected to the opposite side wall surfaces of the two gravure wallboards; and Ink-blocking blocks are provided at both axial ends of the two pressure plates, the bottoms of the two ink-blocking blocks are not higher than the bottom of the scraper, and protrude toward one side of the gravure roller respectively. When the scraper abuts against the outer wall of the gravure roller with its bottom, one side of the ink-block abuts against the outer peripheral wall of the gravure roller, thereby forming a V-shaped groove for accommodating the slurry between the gravure roller and the scraper.

8. The high-precision flexible integrated circuit production equipment according to claim 7, characterized in that: The scraper assembly is arranged on a side of the gravure roller close to the visual alignment mechanism; and / or Pressure gauges are respectively arranged in the two lifting assemblies to detect the pressure applied on the stamping platform by the two ends of the gravure roller.

9. The high-precision flexible integrated circuit production equipment according to any one of claims 1 to 4, 7 and 8, characterized in that: The operation control platform includes a control cabinet and a main control screen arranged on the control cabinet; The visual alignment mechanism, the linear displacement mechanism and the gravure printing module are respectively arranged on the top of the control cabinet, and the main control screen is electrically connected to the electrical control components in each mechanism and module for controlling the entire device and adjusting related parameters.

10. A method for producing a high-precision flexible integrated circuit, for printing at least two different conductive layers on the same substrate to be printed; characterized in that: The production method is completed by using the production equipment of the high-precision flexible integrated circuit described in any one of claims 1 to 9, and includes the following process: (1) Assembling a gravure roller corresponding to the first conductive layer in the gravure printing module, and placing a substrate to be printed on the stamping platform and fixing it; aligning the substrate to be printed by the visual alignment mechanism and adjusting it to the expected initial position by the alignment assembly; thereafter, driving the movable platform to translate toward the gravure printing module by the linear displacement mechanism; (2) controlling the operation of the scraper assembly of the gravure printing module so that the scraper of the scraper assembly abuts against the surface of the gravure roller and the slurry is fed; controlling the operation of the two lifting assemblies and the second motor of the gravure printing module so that the gravure roller rotates and moves vertically, coating the slurry on the periphery of the gravure roller and aligning the gravure roller with the substrate to be printed, until the initial position of the pattern of the gravure roller abuts against the printing start position on the substrate to be printed; (3) controlling the first motor and the second motor to continue to work, completing the printing of the conductive layer on the substrate to be printed during the displacement of the mobile platform, and controlling the gravure printing module and the linear displacement mechanism to reset after the printing is completed; (4) removing the gravure roller on the gravure printing module and replacing the gravure roller corresponding to the next conductive layer; removing the substrate to be printed on which the first conductive layer has been printed from the stamping platform; replacing a blank spare substrate on the stamping platform and adjusting it to the expected initial position by the visual alignment mechanism; (5) repeating processes (2) and (3) to complete the printing of a conductive layer on the spare substrate, and the visual alignment mechanism identifies and records the positions of the two marking points obtained by printing on the spare substrate; (6) removing the spare substrate, and placing the substrate to be printed after the previous conductive layer is printed again on the imprinting platform; controlling the visual alignment mechanism to complete the recognition of the positions of the two marking points on the substrate to be printed, and controlling the alignment component to adjust the position of the substrate to be printed so that the positions of the two marking points on the substrate to be printed coincide with the positions of the two marking points obtained in process (5); (7) repeating processes (2) and (3) to print a subsequent conductive layer on the previous conductive layer of the substrate to be printed; (8) If the number of conductive layers is more than two, the processes (4) to (7) are repeated in sequence after the printing of the previous conductive layer is completed until the layered printing of multiple conductive layers on the substrate to be printed is completed.

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