A double-drive gantry mechanism based on cam bearing follower

Abstract

The utility model discloses a kind of gantry double-drive driving mechanisms based on cam bearing follower, comprising: gantry;Drive module, install on gantry, driving plate is installed thereon, cam bearing follower is installed on the driving plate;Mobile component, along the gantry moves, mobile block is installed, the cam bearing follower drives the mobile component to move;Impression component, with the mobile block moves, for impression.The utility model has beneficial effects, realize the impression of large-size substrate, allow to have tiny displacement deviation, guarantee the synchronism of two sides movement, improve service life, while can guarantee impression accuracy.

Description

Technical Field

[0001] This utility model relates to the field of nanoimprint technology, specifically to a gantry dual-drive transmission mechanism based on a cam bearing follower. Background Technology

[0002] Nanoimprint lithography is a highly efficient method for transferring microscopic patterns. It uses an imprinting machine with an imprinting template to complete the imprinting process. After removing the base adhesive, a metal layer is etched to form a grating. Existing imprinting equipment is generally small, therefore only a small area can be imprinted in a single pass. After imprinting, splicing is required, but gaps can easily form in the resulting panels, affecting subsequent production. Existing imprinting equipment typically uses a single-sided drive to move the overmolding rollers, which is unsuitable for large-area imprinting. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a gantry dual-drive transmission mechanism based on a cam bearing follower, which is suitable for large-area printing scenarios. It has a dual-drive structure and can ensure the synchronicity of movement on both sides by being driven by a cam bearing follower.

[0004] Specifically, this utility model discloses a gantry dual-drive transmission mechanism based on a cam bearing follower, comprising:

[0005] Gantry frame;

[0006] A drive module is mounted on a gantry frame, on which a drive plate is mounted, and a cam bearing follower is mounted on the drive plate;

[0007] A movable component moves along the gantry frame and is equipped with a movable block; the cam bearing follower drives the movable component to move.

[0008] An imprinting assembly, which moves with the moving block, is used for imprinting.

[0009] The advantages of adopting the above technical solution are that it enables the imprinting of large-size substrates, allows for slight displacement deviations, ensures the synchronicity of movement on both sides, improves service life, and ensures imprinting accuracy.

[0010] Furthermore, the moving component includes a moving frame, the moving block is fixedly disposed with the moving frame, the gantry is provided with a guide rail and a slider, and the moving frame moves along the guide rail.

[0011] The advantage of adopting the above technical solution is that the guide rail and slider make the moving frame move smoothly and steadily, while the imprinting component is used for imprinting.

[0012] Furthermore, the embossing assembly includes: a vertical module, a vertical plate, and a pressure roller assembly. The vertical module is mounted on the movable frame, driving the vertical plate to move up and down. The pressure roller assembly is fixedly mounted to the vertical plate.

[0013] The advantage of adopting the above technical solution is that the vertical module allows the pressure roller group to move vertically. When it moves to the position where it needs to be imprinted, it descends and begins imprinting after it has descended to the position. After imprinting is completed, it is lifted up, which is suitable for different usage situations.

[0014] Furthermore, the cam bearing follower is fixedly mounted side by side on the drive plate, the moving block is provided with a receiving groove, and the cam bearing follower is clearance-fitted with the side of the receiving groove.

[0015] The advantage of adopting the above technical solution is that the drive module drives the cam bearing follower to move, and the cam bearing follower contacts the inner wall of the receiving groove to push the moving block to move. Compared with the direct drive method, it allows a certain displacement deviation on both sides, making the dual drive more flexible and preventing damage caused by jamming.

[0016] Furthermore, the drive module is a linear motor mounted on the gantry, the linear motor is provided with a mover block, and the drive plate is connected to the mover block.

[0017] The advantages of adopting the above technical solution are that linear motors have advantages such as high positioning accuracy, long life and applicability to long strokes, which can be guaranteed when used on gantry cranes.

[0018] Furthermore, the pressure roller assembly includes: a rubber-coated roller, a fixed frame, and a drive cylinder. The rubber-coated roller is rotatably mounted on the fixed frame, the output end of the drive cylinder is connected to the fixed frame, and the drive cylinder is mounted on the vertical plate.

[0019] The advantage of adopting the above technical solution is that the rubber-coated roller is set for rolling embossing, and the driving cylinder provides a vertical displacement for the rubber-coated roller. After the rubber-coated roller has reached its position, the driving cylinder extends to provide downward pressure, ensuring the integrity of the embossed pattern.

[0020] Furthermore, the fixed frame is provided with a protruding plate, and the protruding plate is connected to a connecting plate via a rotating shaft. The connecting plate is connected to the output end of the drive cylinder.

[0021] The advantage of adopting the above technical solution is that the protruding plate enables the fixed frame to rotate at a certain angle, making it suitable for various applications and preventing the rubber-coated roller from experiencing hard collisions during printing.

[0022] Furthermore, hydraulic buffers are provided on both sides of the connecting plate.

[0023] The advantage of adopting the above technical solution is that the hydraulic buffer is used to limit the position of the rubber-coated roller, providing good support and preventing the rubber-coated roller from rotating too much.

[0024] Furthermore, the gantry is equipped with multiple position sensors.

[0025] The advantage of adopting the above technical solution is that the position sensor is used to sense the position of the moving frame. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0027] Figure 1 This is a schematic diagram of the overall structure of the gantry dual-drive transmission mechanism based on a cam bearing follower according to this utility model.

[0028] Figure 2 This is an enlarged view of utility model A.

[0029] Figure 3 This is a schematic diagram of the embossing component structure of this utility model.

[0030] Figure 4 This is a schematic diagram of the installation of the cam bearing follower of this utility model. Figure 1

[0031] Figure 5 This is a schematic diagram of the installation of the cam bearing follower of this utility model. Figure 1

[0032] Figure 6 This is a structural diagram of the movable block of this utility model.

[0033] The reference numerals used in the attached figures are as follows:

[0034] 1. Gantry frame; 2. Drive plate; 3. Cam bearing follower; 4. Moving block; 41. Moving frame; 42. Guide rail; 43. Receiving groove; 5. Imprinting assembly; 51. Vertical module; 52. Vertical plate; 6. Linear motor; 7. Rubber-coated roller; 71. Fixed frame; 72. Drive cylinder; 73. Protruding plate; 74. Rotating shaft; 75. Connecting plate; 76. Hydraulic buffer. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings.

[0036] like Figure 1-3 As shown, this utility model discloses a gantry dual-drive transmission mechanism based on a cam bearing follower, comprising:

[0037] Gantry Frame 1;

[0038] A drive module is installed on a gantry frame 1, on which a drive plate 2 is mounted, and a cam bearing follower 3 is mounted on the drive plate 2.

[0039] The movable component moves along the gantry frame 1 and is equipped with a movable block 4. The cam bearing follower 3 drives the movable component to move.

[0040] The embossing component 5 moves with the moving block 4 and is used for embossing.

[0041] The advantages of adopting the above technical solution are that it enables the imprinting of large-size substrates, allows for slight displacement deviations, ensures the synchronicity of movement on both sides, improves service life, and ensures imprinting accuracy.

[0042] The moving assembly includes a moving frame 41, with a moving block 4 fixedly mounted to the moving frame 41. The gantry frame 1 is equipped with guide rails 42 and sliders. The moving frame 41 has a base plate, and there can be four sliders. The base plate is fixedly connected to the sliders. The moving frame 41 moves along the guide rails 42, which are two in number and located on the top of the gantry frame 1 on both sides of the mounting. Multiple position sensors, which can be implemented using photoelectric switches, are installed on the gantry frame 1 to sense the position of the moving frame 41.

[0043] Furthermore, the cam bearing follower 3 is fixedly mounted side-by-side on the drive plate 2, such as... Figure 4-6 As shown, the moving block 4 is provided with a receiving groove 43. The cam bearing follower 3 is in clearance fit with the side of the receiving groove 43. The cam bearing follower 3 is a standard part, which has a rotatable rotating ring. The cam bearing follower 3 is horizontally mounted on the drive plate 2 and is in clearance fit with the receiving groove 43 in the moving block 4. When the drive module drives the cam bearing follower 3 to move, the rotating ring of the cam bearing follower 3 contacts the side of the receiving groove 43, thereby pushing the moving block 4 to move. Compared with the method of directly driving through the moving module, it allows a certain displacement deviation on both sides, making the dual drive more flexible and avoiding problems such as jamming and damage.

[0044] Furthermore, the drive module consists of linear motors 6 mounted symmetrically on the gantry 1. Each linear motor 6 has a mover block, and the drive plate 2 is connected to the mover block. The linear motor 6 offers advantages such as high positioning accuracy, long lifespan, and suitability for long strokes. Its application on the gantry 1 ensures both stroke and running accuracy. Alternatively, the drive module can also be a lead screw motor module, similarly enabling the movement of the drive plate.

[0045] In addition, the dimensions of the gantry frame 1 are set as needed. In this application, it is a large-span gantry frame 1 with a length between 1 and 2 meters and a width between 1 and 1.5 meters. In this application, the length is 1500 mm and the width is 1100 mm. The gantry frame has legs, which are not shown in the figure.

[0046] In some implementations, the embossing assembly 5 includes: a vertical module 51, a vertical plate 52, and a pressure roller assembly. The vertical module 51 is fixedly mounted on the movable frame 41, driving the vertical plate 52 to move up and down. The pressure roller assembly is fixedly mounted to the vertical plate 52. The vertical module 51 is a linear module, which can be a lead screw motor module, driving the vertical plate 52 to move up and down for easy control. The vertical module 51 allows the pressure roller assembly to move vertically, descending when it reaches the desired embossing position, starting embossing after reaching the desired position, and then lifting up after embossing is complete, making it suitable for different applications.

[0047] Furthermore, the pressure roller assembly includes: a rubber-coated roller 7, a fixed frame 71, and a drive cylinder 72. The rubber-coated roller 7 is rotatably mounted on the fixed frame 71. The output end of the drive cylinder 72 is connected to the fixed frame 71. The drive cylinder 72 is mounted on the vertical plate 52. When the rubber-coated roller 7 contacts the platform to be printed on the lower side, the drive cylinder 72 extends to provide downward pressure, ensuring the integrity of the printed pattern.

[0048] Furthermore, the fixed frame 71 is provided with a protruding plate 73, which is fixedly installed with the fixed frame 71. The protruding plate 73 is connected to a connecting plate 75 through a rotating shaft 74. The connecting plate 75 is connected to the output end of the drive cylinder 72. The bottom of the connecting plate 75 is provided with a fixing groove for the protruding plate 73 to extend into. The rotating shaft 74 can rotate through the fixing groove and be fixed, so that the fixed frame 71 has a certain angle of rotation capability, which is suitable for various applicable situations and avoids hard collisions of the rubber-coated roller 7 during printing.

[0049] Furthermore, hydraulic buffers 76 are provided on both sides of the connecting plate 75, and the hydraulic buffers 76 can be fixed by means of locking or other methods.

[0050] The hydraulic buffer 76 is used to limit the position of the rubber-coated roller 7, providing good support and preventing the rubber-coated roller 7 from rotating too much.

[0051] During operation, the linear motors 6 on both sides drive the cam bearing follower 3 to move, further transmitting power to the moving block 4, which in turn moves the moving block 4. After moving into position, the vertical module 51 drives the rubber-coated roller 7 to descend. Once in position, the drive cylinder 72 extends to provide pressure. Then, the linear motors 6 continue to move until the printing is completed and the block returns to its original position. During the reciprocating movement of the moving frame 41, the cam bearing follower 3 pushes the moving block 4 to move, allowing for slight errors in the movement between the linear motors 6 on both sides. This prevents the movement from being asynchronous and causing jamming or damage, thus extending the service life. This method is suitable for printing situations with large spans.

[0052] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A gantry dual-drive transmission mechanism based on a cam bearing follower, characterized in that, include: Gantry frame (1); A drive module is installed on a gantry (1), on which a drive plate (2) is installed, and a cam bearing follower (3) is installed on the drive plate (2). The moving component moves along the gantry (1) and is equipped with a moving block (4), and the cam bearing follower (3) drives the moving block to move; Imprinting component (5), which is used for imprinting as the moving component moves.

2. The gantry dual-drive transmission mechanism based on a cam bearing follower according to claim 1, characterized in that, The moving component includes a moving frame (41), the moving block (4) is fixedly set with the moving frame (41), the gantry (1) is provided with a guide rail (42) and a slider, and the moving frame (41) moves along the guide rail (42).

3. The gantry dual-drive transmission mechanism based on a cam bearing follower according to claim 2, characterized in that, The embossing assembly (5) includes: a vertical module (51), a vertical plate (52) and a pressure roller assembly. The vertical module (51) is mounted on the movable frame (41) and drives the vertical plate (52) to move up and down. The pressure roller assembly is fixedly mounted to the vertical plate (52).

4. The gantry dual-drive transmission mechanism based on a cam bearing follower according to claim 1, characterized in that, The cam bearing follower (3) is fixedly mounted side by side on the drive plate (2), and the moving block (4) is provided with a receiving groove (43). The cam bearing follower (3) is clearance-fitted with the side of the receiving groove (43).

5. The gantry dual-drive transmission mechanism based on a cam bearing follower according to claim 1, characterized in that, The drive module is a linear motor (6) installed on the gantry (1). The linear motor (6) is provided with a moving block, and the drive plate (2) is connected to the moving block.

6. The gantry dual-drive transmission mechanism based on a cam bearing follower according to claim 3, characterized in that, The pressure roller assembly includes: a rubber-coated roller (7), a fixed frame (71), and a drive cylinder (72). The rubber-coated roller (7) is rotatably mounted on the fixed frame (71). The output end of the drive cylinder (72) is connected to the fixed frame (71). The drive cylinder (72) is mounted on the vertical plate (52).

7. The gantry dual-drive transmission mechanism based on a cam bearing follower according to claim 6, characterized in that, The fixed frame (71) is provided with a protruding plate (73), and the protruding plate (73) is connected to a connecting plate (75) through a rotating shaft (74). The connecting plate (75) is connected to the output end of the driving cylinder (72).

8. The gantry dual-drive transmission mechanism based on a cam bearing follower according to claim 7, characterized in that, Hydraulic buffers (76) are provided on both sides of the connecting plate (75).

9. The gantry dual-drive transmission mechanism based on a cam bearing follower according to claim 1, characterized in that, The gantry (1) is equipped with multiple position sensors.

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