An inkjet printer for producing a conductive film

Abstract

The utility model relates to the production technical field of conductive film, specifically related to a conductive film production is with inkjet printer, including work table and support frame, the outside fixed connection of work table has driver, the top of work table is provided with auxiliary mechanism, the inside of support frame is provided with ink supply mechanism, the auxiliary mechanism includes luminous seat, the outside fixed connection of luminous seat is in the top of work table, the top fixed connection of luminous seat has the light transmission plate, the both sides of the top of light transmission plate are all fixedly connected with the outer frame, the inside of outer frame all is connected with slide rod slidingly, the utility model, through manual upwardly lifts the press bar, drives the compression of reset spring that press bar outside sets, simultaneously promotes the slide rod slidingly connected in the inside of outer frame, drives the transverse movement of the horizontal resistance board fixed in the similar side of slide rod, thereby realizes the accurate location fixed of different size conductive film base material, and the effect of the consistency of base material positioning in continuity production.

Description

Technical Field

[0001] This utility model relates to the field of conductive film production technology, and in particular to an inkjet printer for conductive film production. Background Technology

[0002] Conductive thin films, as functional films with conductive properties, are widely used in display devices, touch panels, flexible electronics, photovoltaic cells, sensors, and other fields. Their core requirement is to form high-precision, high-conductivity, and high-stability conductive patterns or coatings on insulating substrates. In the production process of conductive thin films, the fabrication process of the conductive patterns is the key step, and inkjet printing technology, as a non-contact, digital precision manufacturing technology, is gradually becoming an important technological direction in this field due to its unique advantages.

[0003] A typical inkjet printer for conductive film production consists of an ink supply mechanism, an inkjet printing mechanism, and a positioning mechanism. The ink supply mechanism ensures a constant ink state at the nozzle by stably supplying conductive ink to the print head. The inkjet printing mechanism uses piezoelectric drive technology to control the nozzle to eject ink droplets as needed. Through a high-precision motion system, the ink droplets are accurately deposited on the substrate surface to form a preset conductive pattern. The positioning mechanism helps support the conductive film substrate and prevents it from shifting.

[0004] In existing technologies, the limiting components of traditional positioning mechanisms are mostly designed with fixed dimensions, which can only be adapted to substrates of specific specifications. When it is necessary to change to substrates of different widths and thicknesses, the entire limiting component must be replaced, which is cumbersome and has poor equipment versatility. It is difficult to meet the production needs of multiple varieties and small batches in the field of flexible electronics. In the continuous production process, the positioning accuracy of existing positioning mechanisms for substrates is insufficient, which causes the inkjet printing mechanism to rescan and reposition when printing graphics, which seriously affects production efficiency and is not convenient to meet people's needs, resulting in low practicality. Utility Model Content

[0005] The purpose of this invention is to provide an inkjet printer for conductive film production, which solves the problems that traditional limiting mechanisms cannot adapt to substrates of multiple sizes, and that large positioning deviations of substrates in continuous production require repeated adjustments that affect production efficiency.

[0006] To achieve the above objectives, this utility model provides an inkjet printer for conductive film production, including a worktable and a support frame. A driver is fixedly connected to the outside of the worktable, an auxiliary mechanism is provided on the top of the worktable, and an ink supply mechanism is provided inside the support frame.

[0007] The auxiliary mechanism includes a light-emitting base, which is externally fixedly connected to the top of the workbench. A light-transmitting plate is fixedly connected to the top of the light-emitting base. An outer frame is fixedly connected to both sides of the top of the light-transmitting plate. A sliding rod is slidably connected inside each outer frame. A horizontal abutment plate is fixedly connected to the adjacent side of each sliding rod. A pressure rod is slidably connected inside the outer frame. A return spring is sleeved on the outside of the pressure rod. Vertical abutment plates are slidably connected to both sides of the inside of the horizontal abutment plate. An adjustment knob is threaded onto the outside of the vertical abutment plate. An inkjet assembly is installed outside the driver, and an ink feeding assembly is installed inside the driver.

[0008] The ink supply mechanism includes a three-stage filtration system. The bottom of the three-stage filtration system is fixedly connected to the inside of the support frame. A secondary filtration system is fixedly connected to the top of the three-stage filtration system. A filter element is fixedly connected inside the secondary filtration system. A primary filtration system is fixedly connected to the top of the secondary filtration system. A filter screen is snapped into the inside of the primary filtration system. An inlet is threadedly connected to the top of the primary filtration system. A liquid pump is connected to the external pipe of the three-stage filtration system. A storage tank is fixedly connected to the output end of the liquid pump. A liquid level sensor is fixedly connected inside the storage tank. A feeding assembly is installed on the top of the inlet.

[0009] The inkjet assembly includes a drive rail, one end of which is fixedly connected to the drive end of the driver, and the output end of the drive rail is fixedly connected to an inkjet head.

[0010] The ink delivery assembly includes a buffer tank, which is externally fixedly connected to the inside of the driver, and a liquid pump is connected to the bottom pipe of the buffer tank.

[0011] The feeding assembly includes a feed pipe, one end of which is fixedly connected to the top of the inlet, and the other end of which is fixedly connected to a feed port.

[0012] The receiving end of the liquid discharge pump is fixedly connected to the outer bottom side of the storage tank, and the bottom of the storage tank is fixedly connected to the inside of the support frame.

[0013] The other end of the drive rail is slidably connected to the top outside of the worktable, and the top of the buffer tank is connected to the receiving end of the inkjet head through a pipe.

[0014] The return spring is sleeved inside the outer frame, and the bottom of the pressure rod is supported on the top side of the return spring.

[0015] This utility model relates to an inkjet printer for producing conductive thin films.

[0016] 1. In this utility model, by manually lifting the pressure rod upwards, the return spring sleeved on the outside of the pressure rod is compressed, which simultaneously pushes the sliding rod connected inside the outer frame, causing the horizontal stop plate fixed on the side near the sliding rod to move laterally. After the horizontal stop plate abuts against both sides of the substrate, the pressure rod is released, and the return spring rebounds, causing the pressure rod to press the sliding rod downwards. By rotating the adjustment knob connected to the external thread of the vertical stop plate, the vertical stop plate connected inside the horizontal stop plate moves longitudinally, adapting to the positioning requirements of substrates of different sizes. Uniform light is emitted through the light-emitting seat and transmitted to the bottom of the substrate through the light-transmitting plate, making it easy to detect printing defects in time. By limiting the position of the substrate through the horizontal and vertical stop plates, the subsequent placement of the same conductive film substrates are all in the same fixed position, thereby achieving the effect of precise positioning and fixing of conductive film substrates of different sizes and consistent substrate positioning in continuous production.

[0017] 2. In this utility model, with the filter screen snapped into the primary filter, the filter element fixed in the secondary filter, and the tertiary filter working together, larger, medium, and tiny impurity particles in the conductive ink are filtered layer by layer, preventing ink clogging caused by impurities. With the cooperation of the liquid delivery pump and the storage tank, the filtered ink can be efficiently delivered to the storage tank for storage. With the cooperation of the liquid level sensor inside the storage tank, the ink level in the storage tank can be monitored in real time, thus solving the problems of impurities in conductive ink affecting print quality, low storage efficiency of filtered ink, and production interruption caused by the inability to timely monitor the remaining ink level. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a structural schematic diagram of the support frame of this utility model.

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0022] Figure 4 This is a schematic diagram of the structure of the storage tank of this utility model.

[0023] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0024] In the diagram: 1. Workbench; 2. Driver; 3. Support frame; 4. Ink supply mechanism; 41. Three-stage filtration; 42. Two-stage filtration; 43. Filter element; 44. First-stage filtration; 45. Filter screen; 46. Inlet; 47. Liquid pump; 48. Storage tank; 49. Liquid level sensor; 5. Auxiliary mechanism; 51. Light-emitting base; 52. Light-transmitting plate; 53. Outer frame; 54. Slide rod; 55. Horizontal stop plate; 56. Pressure rod; 57. Return spring; 58. Vertical stop plate; 59. Adjustment knob; 6. Inkjet assembly; 61. Drive rail; 62. Inkjet head; 7. Ink supply assembly; 71. Buffer tank; 72. Liquid pump; 8. Feeding assembly; 81. Feed pipe; 82. Feed port. Detailed Implementation

[0025] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0026] Please see Figures 1 to 3 This utility model provides a technical solution: an inkjet printer for producing conductive films, including a worktable 1 and a support frame 3. The worktable 1 facilitates the inkjet printing of conductive films on its top, and the support frame 3 provides a stable support base for the equipment. A driver 2 is fixedly connected to the outside of the worktable 1, and the driver 2 provides power to the inkjet assembly 6. An auxiliary mechanism 5 is provided on the top of the worktable 1, and an ink supply mechanism 4 is provided inside the support frame 3.

[0027] The auxiliary mechanism 5 includes a light-emitting base 51, which emits uniform light to facilitate observation of the substrate printing status. The light-emitting base 51 is externally fixedly connected to the top of the worktable 1. A light-transmitting plate 52 is fixedly connected to the top of the light-emitting base 51. The light-transmitting plate 52 has good light transmittance, allowing the light from the light-emitting base 51 to uniformly illuminate the bottom of the substrate. Outer frames 53 are fixedly connected to both sides of the top of the light-transmitting plate 52. The outer frames 53 provide installation and sliding space for the slide rods 54 and pressure rods 56. Slide rods 54 are slidably connected inside the outer frames 53. The slide rods 54 can drive the horizontal abutment plate 55 to move laterally to adapt to substrates of different widths. A horizontal abutment plate 55 is fixedly connected to the side of the slide rod 54. The horizontal abutment plate 55 can abut against both sides of the substrate laterally to limit the lateral displacement of the substrate. Pressure rods 56 are slidably connected inside the outer frames 53. Pressure rods 56 can press downwards. The slide bar 54 is fixed in position. The pressure bar 56 is fitted with a return spring 57. The return spring 57 can provide a rebound force when the pressure bar 56 is lifted upward, which facilitates the adjustment of the position of the horizontal abutment plate 55. The horizontal abutment plate 55 has vertical abutment plates 58 slidably connected to both sides inside. The vertical abutment plates 58 can abut against both ends of the substrate from the longitudinal direction, which can limit the longitudinal displacement of the substrate. The vertical abutment plates 58 are threadedly connected to the outside of the adjustment knob 59. The adjustment knob 59 can adjust the position of the vertical abutment plates 58 through the thread to adapt to substrates of different widths. The inkjet assembly 6 is installed on the outside of the driver 2. The ink feeding assembly 7 is installed inside the driver 2. The return spring 57 is fitted inside the outer frame 53. The outer frame 53 can limit the return spring 57 to prevent it from deforming and shifting. The bottom of the pressure bar 56 is supported on the top side of the outside of the return spring 57.

[0028] The inkjet assembly 6 includes a drive rail 61, which drives the inkjet head 62 to move along a set path to ensure accurate printing position. One end of the drive rail 61 is fixedly connected to the drive end of the driver 2, which controls the running speed and direction of the drive rail 61. The output end of the drive rail 61 is fixedly connected to the inkjet head 62, which atomizes ink into tiny droplets for fine line printing. The ink delivery assembly 7 includes a buffer tank 71, which temporarily stores ink, balances ink pressure, and prevents ink delivery fluctuations. The external... Fixedly connected inside the driver 2, the internal space of the driver 2 provides installation protection for the buffer tank 71. The bottom pipe of the buffer tank 71 is connected to the ink discharge pump 72, which can control the flow rate of ink output from the buffer tank 71 to ensure stable ink supply. The other end of the drive rail 61 is slidably connected to the top outer side of the worktable 1. The worktable 1 can support the other end of the drive rail 61 to ensure its smooth movement. The top of the buffer tank 71 is connected to the receiving end of the inkjet head 62 through a pipe, which can stably deliver the ink in the buffer tank 71 to the inkjet head 62.

[0029] like Figure 2 , Figure 4 and Figure 5As shown, the ink supply mechanism 4 includes a three-stage filter 41, which performs deep filtration of the ink to remove tiny impurity particles. The bottom of the three-stage filter 41 is fixedly connected to the inside of the support frame 3, which provides a stable installation base for the three-stage filter 41. A two-stage filter 42 is fixedly connected to the top of the three-stage filter 41, which performs medium filtration of the ink to intercept medium-sized impurities. A filter element 43 is fixedly connected inside the two-stage filter 42. The filter element 43 is the core filtration component of the two-stage filter 42 and intercepts impurities through a porous structure. A first-stage filter 44 is fixedly connected to the top of the two-stage filter 42, which performs preliminary filtration of the ink to remove larger impurities. A filter screen 45 is snapped into the inside of the first-stage filter 44. 5 is the core filter component of the first-stage filter 44. It blocks large particles of impurities through a mesh structure and has a snap-fit ​​design for easy replacement. The top of the first-stage filter 44 is threaded with an inlet 46, which provides a channel for ink to enter the filtration system. The threaded connection makes it easy to disassemble and clean. The external pipe of the third-stage filter 41 is connected to a liquid delivery pump 47, which can deliver the filtered ink to the storage tank 48 and provide delivery power. The output end of the liquid delivery pump 47 is fixedly connected to the storage tank 48, which can store the filtered ink for a long time to ensure sufficient ink supply. The storage tank 48 is fixedly connected with a liquid level sensor 49, which can monitor the ink level in the storage tank 48 in real time for timely ink replenishment. The top of the inlet 46 is equipped with a feeding component 8.

[0030] The feeding assembly 8 includes a feed pipe 81, which can transport ink from the feed port 82 to the inlet 46 to form a feeding channel. One end of the feed pipe 81 is fixedly connected to the top of the inlet 46, and the other end of the feed pipe 81 is fixedly connected to the feed port 82. The feed port 82 has a large diameter, which facilitates the addition of ink into the feed pipe 81. The receiving end of the liquid pump 72 is fixedly connected to the bottom side of the storage tank 48. The liquid pump 72 can draw ink from the bottom of the storage tank 48 to avoid ink residue. The bottom of the storage tank 48 is fixedly connected to the inside of the support frame 3. The support frame 3 can fix and support the storage tank 48 to prevent it from tipping over.

[0031] Working principle: During the production of conductive film, conductive ink is first added through the feed port 82 of the feeding component 8. The ink is then transported through the feed pipe 81 to the inlet 46 of the ink supply mechanism 4. After entering the primary filter 44, larger impurities are initially filtered by the internally clamped filter screen 45. The ink then flows into the secondary filter 42, where medium-sized impurities are intercepted by the internally fixed filter element 43. Finally, it enters the tertiary filter 41 for deep filtration to remove tiny impurity particles. The filtered ink is then transported to the storage tank 48 for storage by the power of the liquid delivery pump 47. The liquid level sensor 49 inside the storage tank 48 monitors the ink level in real time. When ink supply is needed for printing, the liquid outlet pump 72 of the ink supply component 7 draws ink from the bottom of the storage tank 48 and transports it to the buffer tank 71 for temporary storage.

[0032] Next, the conductive film substrate is placed on the light-transmitting plate 52 of the auxiliary mechanism 5 at the top of the workbench 1. The light-emitting seat 51 emits uniform light, which shines through the light-transmitting plate 52 onto the bottom of the substrate for easy observation of the printing status. The pressure rod 56 is lifted upwards, and then the sliding rod 54, which is slidably connected inside the outer frame 53, is pushed, causing the horizontal abutment plate 55 to press against both sides of the substrate laterally. The return spring 57 sleeved on the outside of the pressure rod 56 is compressed. After the position of the sliding rod 54 is determined, the pressure rod 56 is released, and the return spring 57 rebounds, causing the pressure rod 56 to press down on the sliding rod 54 to achieve fixation. Then, rotate the adjustment knob 59 on the outside of the vertical stop plate 58 to adjust the position of the vertical stop plate 58 so that it abuts against both ends of the substrate longitudinally. Then, the driver 2 is started. On the one hand, it controls the drive rail 61 of the inkjet assembly 6 to drive the inkjet head 62 to move along the set path. On the other hand, it causes the buffer tank 71 to deliver ink to the inkjet head 62 through the pipe. The inkjet head 62 atomizes the ink into tiny ink droplets and sprays them onto the substrate to complete the inkjet printing of the conductive film. When the same conductive film substrate is placed subsequently, its position is limited to the same position, which facilitates continuous production operations.

[0033] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.

Claims

1. An inkjet printer for producing conductive thin films, comprising a worktable and a support frame, characterized in that: A driver is fixedly connected to the outside of the worktable, an auxiliary mechanism is provided on the top of the worktable, and an ink supply mechanism is provided inside the support frame. The auxiliary mechanism includes a light-emitting base, which is externally fixedly connected to the top of the workbench. A light-transmitting plate is fixedly connected to the top of the light-emitting base. An outer frame is fixedly connected to both sides of the top of the light-transmitting plate. A sliding rod is slidably connected inside each outer frame. A horizontal abutment plate is fixedly connected to the adjacent side of each sliding rod. A pressure rod is slidably connected inside the outer frame. A return spring is sleeved on the outside of the pressure rod. Vertical abutment plates are slidably connected to both sides of the inside of the horizontal abutment plate. An adjustment knob is threaded onto the outside of the vertical abutment plate. An inkjet assembly is installed outside the driver, and an ink feeding assembly is installed inside the driver.

2. The inkjet printer for producing conductive thin films according to claim 1, characterized in that: The ink supply mechanism includes a three-stage filtration system. The bottom of the three-stage filter is fixedly connected to the inside of the support frame. A secondary filter is fixedly connected to the top of the three-stage filter. A filter element is fixedly connected inside the secondary filter. A primary filter is fixedly connected to the top of the secondary filter. A filter screen is snapped into the inside of the primary filter. An inlet is threadedly connected to the top of the primary filter. A liquid pump is connected to the external pipe of the three-stage filter. A storage tank is fixedly connected to the output end of the liquid pump. A liquid level sensor is fixedly connected inside the storage tank. A feeding assembly is installed on the top of the inlet.

3. The inkjet printer for producing conductive thin films according to claim 2, characterized in that: The inkjet assembly includes a drive rail, one end of which is fixedly connected to the drive end of the driver, and an inkjet head is fixedly connected to the output end of the drive rail.

4. The inkjet printer for producing conductive thin films according to claim 3, characterized in that: The ink delivery assembly includes a buffer tank, which is externally fixedly connected to the inside of the driver, and a liquid dispensing pump is connected to the bottom pipe of the buffer tank.

5. An inkjet printer for producing conductive thin films according to claim 2, characterized in that: The feeding assembly includes a feed pipe, one end of which is fixedly connected to the top of the inlet, and the other end of which is fixedly connected to a feed port.

6. The inkjet printer for producing conductive thin films according to claim 4, characterized in that: The receiving end of the discharge pump is fixedly connected to the outer bottom side of the storage tank, and the bottom of the storage tank is fixedly connected to the inside of the support frame.

7. An inkjet printer for producing conductive thin films according to claim 4, characterized in that: The other end of the drive rail is slidably connected to the top outside of the worktable, and the top of the buffer tank is connected to the receiving end of the inkjet head through a pipe.

8. An inkjet printer for producing conductive thin films according to claim 1, characterized in that: The return spring is sleeved inside the outer frame, and the bottom of the pressure rod is supported on the top side of the return spring.

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