Circuit printing equipment for touch screen production

Abstract

A circuit printing device for touch screen production comprises a supporting frame, a plurality of parallel workbenches are fixedly arranged on the supporting frame, sliding devices are arranged on the two opposite sides of the supporting frame, and a sliding frame is arranged on the sliding devices; a sliding plate is correspondingly arranged above the workbench and fixedly connected with the sliding frame, and rotating wheels are arranged at the two ends of the sliding plate and connected through a conveying belt. The rotating wheels arranged on the sliding frame are fixedly connected through a rotating rod; a first motor is arranged at the upper end of the sliding frame, an output shaft of the first motor is fixedly connected with the rotating rod, and the first motor rotates to drive the rotating wheel to rotate; and a printing device is arranged on the sliding plate, is in sliding connection with the sliding plate, is fixedly connected with the conveying belt, and is of a structure capable of being finely adjusted up and down. The utility model aims to realize processing and printing of sensing layers and driving layers of a plurality of screen models and improve the production efficiency and quality of the touch screen.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of touch screen production and relates to a circuit printing device for touch screen production. BACKGROUND

[0002] With the continuous development of electronic devices, touch screens have been widely used in many fields such as smart phones, tablet computers, smart home appliances, and their market demand continues to grow. The production quality and efficiency of touch screens are crucial for electronic device manufacturers, and circuit printing, as a key link in touch screen production, directly affects product performance and production cycle.

[0003] In the production process of touch screens, the circuit printing of large-size screens faces severe challenges. Due to the large screen area, the traditional printing method relying on a single print head is extremely inefficient. When printing the sensing layer and the driving layer of a large-area screen, a single print head needs to work for a long time, not only consuming a lot of time and increasing production costs, but also causing the printing precision to decrease due to equipment fatigue and other factors during long-time printing, affecting product quality. For example, when producing common large-size smart TV touch screens, it may take several hours to complete the circuit printing of a screen module using a single print head, which severely restricts the production progress.

[0004] After searching and consulting relevant information, it is found that some research and technical solutions have been attempted to improve the efficiency of touch screen circuit printing. For example, patent CN115891139A discloses a multi-head printing device for touch film processing, which is provided with at least two moving cross beams on the upper part of the workbench, and a sliding mounting seat with a print head is slidably connected on one side of the cross beam. The printing is realized by the cooperation of the moving assembly and the transmission device. This multi-head printing device improves the printing efficiency to some extent and can print multiple groups of conductive lines simultaneously. However, this device is mainly used for printing ultra-fine conductive lines on the surface of plastic film substrates, and it still has deficiencies in printing precision, material adaptability, and Z-axis direction printing control for the complex sensing layer and driving layer printing in touch screen production. The structural design of the moving cross beam and the print head focuses on the optimization of the layout in the two-dimensional plane, which cannot meet the requirements of accurate printing of the sensing layer and the driving layer in the normal direction (Z-axis) for screen modules of different thicknesses in touch screen production.

[0005] After analyzing the existing solutions, although the multi-head printing device improves the efficiency of planar printing, it still needs a special device to solve the problem due to the particularity of touch screen production. Therefore, the present application proposes a method of setting a Z-axis along the normal direction of the screen to be processed and arranging four 3D print heads at intervals in the Z-axis to realize the processing and printing of the sensing layer and the driving layer of multiple screen modules, aiming to overcome the defects of the existing technology, improve the production efficiency and quality of touch screens, and meet the growing market demand. SUMMARY

[0006] The application provides a circuit printing device for touch screen production, which realizes processing and printing of sensing layers and driving layers of multiple screen models, and improves touch screen production efficiency and quality.

[0007] To solve the above problems, the technical scheme adopted by the application is:

[0008] A circuit printing device for touch screen production, comprising a support frame, a plurality of parallel workbenches are fixedly arranged on the support frame, sliding devices are arranged on opposite sides of the support frame, and sliding frames are arranged on the sliding devices; a sliding plate is arranged at a position above the workbench and is fixedly connected with the sliding frame, rotating wheels are arranged at both ends of the sliding plate, and the rotating wheels are connected through a conveying belt; the rotating wheels arranged on the sliding frame are fixedly connected through a rotating rod; a first motor is arranged at an upper end of the sliding frame, an output shaft of the first motor is fixedly connected with the rotating rod, and rotation of the rotating wheels is driven by rotation of the first motor; a printing device is arranged on the sliding plate, the printing device is slidingly connected with the sliding plate, the printing device is fixedly connected with the conveying belt, and the printing device is arranged in a structure that can be finely adjusted up and down.

[0009] The principle of the present scheme is that:

[0010] The support frame serves as a basic support structure and provides a stable foundation for the entire device, and the plurality of parallel workbenches can simultaneously perform different touch screen production processes, thereby improving production efficiency.

[0011] The combination of the sliding device and the sliding frame enables the sliding plate to move smoothly along a specific direction on the support frame, the rotating wheels at both ends of the sliding plate are connected through the conveying belt, when the first motor at the upper end of the sliding frame rotates, the output shaft drives the rotating rod, thereby driving the rotating wheels to rotate, and the conveying belt moves accordingly, driving the printing device fixedly connected therewith to slide horizontally on the sliding plate.

[0012] Since the printing device is slidingly connected with the sliding plate and fixedly connected with the conveying belt, the printing device can be accurately positioned in the horizontal direction, and the printing device is arranged in a structure that can be finely adjusted up and down, so that fine adjustments can be made in the vertical direction according to specific printing requirements, to ensure accurate circuit printing on the touch screen, thereby achieving flexible and accurate movement and positioning of the printing device in the horizontal and vertical directions, and meeting the high-precision and high-efficiency requirements of touch screen circuit printing

[0013] The present scheme has the following beneficial effects:

[0014] The plurality of parallel workbenches fixed on the support frame improve production efficiency, multiple workbenches can simultaneously perform different stages of touch screen production work, parallel operation is realized, and the overall production cycle is effectively shortened.

[0015] The cooperation of the sliding device and the sliding frame provides precise guidance and stable support for the movement of the sliding plate, which ensures that the sliding plate can be accurately positioned above the workbench, thereby laying the foundation for the accurate operation of the printing device and helping to improve the printing accuracy and consistency.

[0016] The coordinated work of the rotating wheels, the conveyor belt, the rotating rods, and the first motor ensures the synchronization and coordination of the movement of the rotating wheels on both sides, which enables the sliding plates on both sides to move at the same speed and rhythm, avoiding problems such as position deviation of the printing device, uneven force on the conveyor belt, etc. caused by inconsistent movement on both sides, thereby significantly improving the printing accuracy and stability, while reducing the number of motors and the corresponding transmission components, reducing the complexity and cost of the equipment, and also reducing the error and failure risk that may be caused by multiple power sources, improving the reliability and maintenance convenience of the equipment. The smooth horizontal movement of the printing device on the sliding plate not only improves the operation convenience, but also reduces the error caused by manual intervention, further ensuring the printing quality.

[0017] The sliding connection of the printing device and the sliding plate and the structure that can be adjusted up and down enable it to flexibly adapt to touch screens of different thicknesses and specifications, meeting diverse production needs, while the adjustable feature helps to accurately adjust the printing height during printing, optimizing the printing effect.

[0018] Further, the sliding device includes a limiting plate, a belt, and a drive wheel fixedly arranged on the front and rear support frames, and the rotating wheels on the same side are connected by the belt. Through the drive wheel fixedly arranged on the support frame and the belt connecting the rotating wheels, uniform power transmission can be ensured, making the movement of the sliding frame more stable and smooth, reducing the phenomenon of jamming and shaking, thereby improving the stability of the equipment operation. The rotating wheels on the same side are connected by the belt, simplifying the transmission structure and reducing the manufacturing and maintenance costs. At the same time, the belt transmission is easy to install and adjust, facilitating disassembly and repair when the equipment fails or needs maintenance.

[0019] Further, the rotating wheels on the front and rear sides of the support frame are fixedly connected by connecting rods, which can ensure synchronous rotation of the rotating wheels on the front and rear sides during equipment operation, avoiding unstable movement of the sliding frame or the sliding plate caused by asynchronous rotation, thereby improving the stability and reliability of the equipment operation, which is conducive to controlling the movement trajectory of the sliding frame and the sliding plate. Since the rotating wheels move in coordination, the printing device provides more accurate position positioning, ensuring the accuracy and quality of the touch screen circuit printing.

[0020] Further, the second motor is arranged on any one of the driving wheels of the sliding device, the output shaft of the motor is fixedly connected with the driving wheel, and the output shaft of the motor directly drives the wheel, thereby reducing energy loss in the power transmission process and ensuring that the driving wheel can quickly and accurately respond to the rotation instruction of the motor, thereby improving the operation efficiency and response speed of the sliding device, and the rotation speed, rotation direction and rotation time of the motor can be flexibly adjusted according to actual needs, so as to accurately control the moving speed, direction and position of the sliding frame, meet the high requirements of circuit printing accuracy and position accuracy in touch screen production, and realize synchronous driving and consistent motion. One motor simultaneously drives the driving wheels on both sides, which can ensure that the sliding devices on both sides operate at the same speed and force, avoiding problems such as tilting, jamming or position deviation of the printing device caused by asynchronous motion of both sides, thereby improving the stability and printing accuracy of the equipment.

[0021] Further, the sliding frame is arranged on the sliding device through sliding cooperation of the sliding block, and the limiting plate arranged on the sliding block and the sliding device is connected in sliding cooperation. The sliding frame horizontally slides left and right on the sliding device. The close cooperation between the sliding block and the sliding device and the limiting effect of the limiting plate effectively prevent the sliding frame from shaking, deviating or jamming during left and right sliding, thereby ensuring the stability and reliability of the equipment operation and helping to improve the accuracy and quality of circuit printing. Meanwhile, the sliding frame can smoothly slide left and right on the sliding device, so that the printing equipment can quickly switch between different workbenches, adapt to different specifications and models of touch screen production tasks, and improve the production efficiency and universality of the equipment.

[0022] Further, the sliding plate is provided with limiting strips arranged in parallel, and the sliding block is connected in sliding cooperation with the limiting strips. The sliding block drives the sliding device to horizontally slide forward and backward along the support frame. The limiting strips limit the sliding block to slide only in the predetermined forward and backward direction, avoiding the deviation of the sliding block from the track or instability during sliding, thereby ensuring the accuracy and reliability of the motion of the sliding device and helping to improve the accuracy of printing operation.

[0023] Further, the height of the workbench can be finely adjusted. For touch screens of different thicknesses or sizes, the height of the workbench can be adjusted to ensure that the printing device and the touch screen maintain the optimal working distance and angle, thereby ensuring the printing quality and accuracy. Meanwhile, when connecting with other equipment or production line, the finely adjustable height of the workbench can better match the equipment height of the upstream and downstream processes, realizing smooth and efficient production process.

[0024] Further, the sliding device is provided with a protective shell on one side, which prevents the operator from accidentally contacting the moving parts of the sliding device during work, thereby reducing the risk of injury and ensuring the safety of personnel.

[0025] Further, the sliding direction of the sliding frame is perpendicular to the sliding direction of the printing device, so that the equipment can be independently and accurately adjusted in two mutually perpendicular horizontal directions, expanding the reachable range and positioning accuracy of the printing device, and meeting the complex touch screen circuit printing pattern and layout requirements. According to different touch screen design and production requirements, the position of the printing device on the workbench can be quickly and flexibly changed, without the need to re-adjust the overall layout of the equipment, thereby improving the production efficiency and reducing the production preparation time. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present application;

[0027] Figure 2 It is Figure 1 a partial enlarged view of I;

[0028] Figure 3 It is Figure 1 a partial enlarged view of II;

[0029] Figure 4 It is Figure 1 a partial enlarged view of III;

[0030] Figure 5 It is a structural schematic diagram of the present application;

[0031] Figure 6 It is Figure 6 a partial enlarged view of I;

[0032] Figure 7 It is Figure 6 a partial enlarged view of II. DETAILED DESCRIPTION

[0033] The reference signs in the drawings of the specification include: support frame 1, sliding device 2, limiting plate 3, sliding frame 4, fixed block 5, sliding plate 6, protective shell 7, workbench 8, rotating rod 9, rotating wheel 10, conveying belt 11, sliding block 12, limiting strip 13, printing device 14, printing head 15, connecting rod 16, belt 17, driving wheel 18, sliding block 19, fixed rod 20, second motor 21

[0034] Example 1 is basically as shown in the accompanying Figures 1-7 A circuit printing equipment for touch screen production, comprising a support frame 1, three parallel workbenches 8 are fixedly arranged on the support frame 1, which can place touch screens of various sizes, and ensure that the touch screen does not displace during printing.

[0035] The sliding device 2 is arranged on the opposite sides of the support frame 1, and the sliding device 2 comprises a limiting plate 3, a belt 17 and a driving wheel 18, the driving wheel 18 is fixedly arranged on the front and rear support frames 1, the rotating wheels 10 on the same side are connected through the belt 17, so that the power transmission is uniform and stable, the sliding frame 4 moves smoothly and stably, the jamming and shaking are reduced, and the stability of the equipment operation is improved.

[0036] The sliding device 2 is arranged on the opposite sides of the support frame 1, and the sliding device 2 comprises a limiting plate 3, a belt 17 and a driving wheel 18, the driving wheel 18 is fixedly arranged on the front and rear support frames 1, the rotating wheels 10 on the same side are connected through the belt 17, so that the power transmission is uniform and stable, the sliding frame 4 moves smoothly and stably, the jamming and shaking are reduced, and the stability of the equipment operation is improved.

[0037] The sliding device 2 is arranged on the opposite sides of the support frame 1, and the sliding device 2 comprises a limiting plate 3, a belt 17 and a driving wheel 18, the driving wheel 18 is fixedly arranged on the front and rear support frames 1, the rotating wheels 10 on the same side are connected through the belt 17, so that the power transmission is uniform and stable, the sliding frame 4 moves smoothly and stably, the jamming and shaking are reduced, and the stability of the equipment operation is improved.

[0038] The sliding device 2 is arranged on the opposite sides of the support frame 1, and the sliding device 2 comprises a limiting plate 3, a belt 17 and a driving wheel 18, the driving wheel 18 is fixedly arranged on the front and rear support frames 1, the rotating wheels 10 on the same side are connected through the belt 17, so that the power transmission is uniform and stable, the sliding frame 4 moves smoothly and stably, the jamming and shaking are reduced, and the stability of the equipment operation is improved.

[0039] The sliding device 2 is arranged on the opposite sides of the support frame 1, and the sliding device 2 comprises a limiting plate 3, a belt 17 and a driving wheel 18, the driving wheel 18 is fixedly arranged on the front and rear support frames 1, the rotating wheels 10 on the same side are connected through the belt 17, so that the power transmission is uniform and stable, the sliding frame 4 moves smoothly and stably, the jamming and shaking are reduced, and the stability of the equipment operation is improved.

[0040] The second motor 21 is arranged on any one of the driving wheels 18 of the sliding device 2, and the output shaft of the motor is directly fixedly connected with the driving wheel 18, so as to reduce the energy loss in the power transmission process, enable the driving wheel 18 to rapidly and accurately respond to the rotation instruction of the motor, improve the operation efficiency and response speed of the sliding device 2, and flexibly adjust the rotation speed, rotation direction and rotation time of the motor according to actual needs, so as to accurately control the moving speed, direction and position of the sliding frame 4, meet the high requirements on circuit printing accuracy and position accuracy in the production of touch screens, ensure the synchronous operation of the two sliding devices 2, avoid problems such as inclination of the sliding frame 4 and position deviation of the printing device 14, and improve the stability and printing accuracy of the equipment.

[0041] The sliding plate 6 is provided with the limiting strips 13 arranged in parallel, and the sliding block 12 is in sliding fit connection with the limiting strips 13, which limits the sliding block 12 to only slide in the predetermined front-rear direction, avoids the deviation of the sliding block 12 from the track or the instability of the sliding block 12 in the sliding process, ensures the accuracy and reliability of the movement of the sliding device 2, and helps to further improve the printing operation accuracy.

[0042] The height of the workbench 8 can be finely adjusted. When facing touch screens of different thicknesses or sizes, the optimal working distance and angle between the printing device 14 and the touch screen can be ensured by adjusting the height of the workbench 8, so as to ensure the printing quality and accuracy, and meanwhile, when connecting with other equipment or production lines, the finely adjustable height of the workbench 8 can better match the equipment height of the upstream and downstream processes, so as to realize smooth and efficient production process.

[0043] The sliding device 2 is provided with the protective shell 7 on one side. The protective shell 7 is made of high-strength transparent plastic material, which can effectively prevent the operator from accidentally contacting the moving parts of the sliding device 2 during work, reduce the risk of injury, and protect the safety of the personnel, and does not hinder the observation of the operation of the equipment by the operator.

[0044] The sliding direction of the sliding frame 4 is perpendicular to the sliding direction of the printing device 14, which enables the equipment to independently and accurately move and adjust in the horizontal two mutually perpendicular directions, greatly expands the reachable range and positioning accuracy of the printing device 14, and can meet the complex touch screen circuit printing pattern and layout requirements. According to different touch screen design and production requirements, the position of the printing device 14 on the workbench 8 can be quickly and flexibly changed, without the need to re-adjust the overall layout of the equipment, so as to improve the production efficiency and reduce the production preparation time.

[0045] In actual production, after the large-size touch screen to be processed is placed on the worktable 8 of the touch screen production circuit printing equipment, the first motor starts to operate, the rotating rod 9 drives the rotating wheel 10 on the sliding frame 4 to rotate, the rotation of the rotating wheel 10 drives the conveying belt 11 to move, thereby driving the printing device 14 fixedly connected with the conveying belt 11 to slide horizontally on the sliding plate 6, at the same time, the second motor 21 also works cooperatively to accurately control the sliding frame 4 to slide horizontally along the support frame 1 on the sliding device 2, so that the printing device 14 can be quickly and accurately moved to the starting printing position of the touch screen, and in the printing process, the parallel limiting strips 13 arranged on the sliding plate 6 are in sliding fit connection with the sliding block 12, so that the movement of the printing device 14 in the front-rear direction is more accurate and stable, and the printing device 14 itself is a structure that can be finely adjusted up and down, so that the position in the vertical direction can be adjusted in real time according to the actual thickness of the touch screen and the specific requirements of the circuit printing, and the printing accuracy and quality are ensured.

[0046] When the local thickness of the touch screen slightly differs, the operator can immediately finely adjust the height of the printing device 14, so that the printed circuit lines are uniform in thickness and accurate in position, the rotating wheels 10 on the front-rear sides of the support frame 1 are fixedly connected through the connecting rods 16, and the sliding frame 4 is in close fit with the sliding device 2 through the sliding block 12 and the limiting plate 3, so that the stability and reliability of the equipment operation are ensured, and the printing error caused by the shaking of the equipment or the asynchronization of components is avoided.

[0047] When it is necessary to continuously perform the printing operation on different worktables 8, the sliding frame 4 can smoothly slide horizontally on the sliding device 2, so that the next worktable 8 can be quickly switched to, and the production efficiency is improved.

[0048] The above is only an embodiment of the present application, and the common knowledge of specific structures and characteristics in the scheme is not described in detail, the ordinary skilled in the art knows all the ordinary technical knowledge in the technical field of the present application before the application date or the priority date, can know all the prior art in the field and has the ability to apply the conventional experimental means before the date, the ordinary skilled in the art can improve and implement the present scheme under the guidance of the present application, and some typical known structures or known methods should not be an obstacle for the ordinary skilled in the art to implement the present application. It should be pointed out that, for the skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be regarded as the protection scope of the present application, and these will not affect the effect and practicality of the patent. The protection scope claimed in the present application should be subject to the content of the claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A circuit printing apparatus for touch panel production, characterized by comprising: The support frame is provided with a plurality of parallel workbenches fixedly arranged thereon, and sliding devices are arranged on opposite sides of the support frame, and the sliding devices are provided with sliding frames; a sliding plate is correspondingly arranged above the workbenches, the sliding plate is fixedly connected with the sliding frame, both ends of the sliding plate are provided with rotating wheels, and the rotating wheels are connected through a conveying belt; the rotating wheels arranged on the sliding frame are fixedly connected through rotating rods; a first motor is arranged at the upper end of the sliding frame, the output shaft of the first motor is fixedly connected with the rotating rod, and the rotating of the rotating wheels is driven by the rotation of the first motor; a printing device is arranged on the sliding plate, the printing device is slidingly connected with the sliding plate, the printing device is fixedly connected with the conveying belt, and the printing device is provided with a structure that can be finely adjusted up and down.

2. The circuit printing apparatus for producing a touch panel according to claim 1, wherein The sliding device comprises a limiting plate, a belt and a driving wheel, the driving wheel is fixedly arranged on the support frames on the front and rear sides, and the rotating wheels on the same side are connected through the belt.

3. The circuit printing apparatus for producing a touch panel according to claim 2, wherein The rotating wheels on the front and rear sides of the support frame are fixedly connected through connecting rods.

4. The circuit printing apparatus for producing a touch panel according to claim 3, wherein A second motor is arranged on any one driving wheel of the sliding device, and the output shaft of the motor is fixedly connected with the driving wheel.

5. The circuit printing apparatus for producing a touch panel according to claim 1, wherein The sliding frame and the sliding device are slidingly matched and arranged on the sliding frame, and the sliding block and the limiting plate arranged on the sliding device are slidingly matched and connected, the sliding frame horizontally slides on the sliding device along the support frame left and right.

6. The circuit printing apparatus for producing a touch panel according to claim 1, wherein The sliding plate is provided with parallel limiting strips, the sliding block and the limiting strips are slidingly matched and connected, and the sliding block drives the sliding device to horizontally slide on the support frame forward and backward.

7. The circuit printing apparatus for producing a touch panel according to claim 1, wherein The height of the workbench can be finely adjusted.

8. The circuit printing apparatus for producing a touch panel according to claim 1, wherein One side of the sliding device is provided with a protective shell.

9. The circuit printing apparatus for producing a touch panel according to claim 1, wherein The sliding direction of the sliding frame is perpendicular to the sliding direction of the printing device.

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