Eccentric wheel for centering device

Abstract

A mounting plate is mounted at the end of a rack of the centering device, the eccentric wheel is arranged on the mounting plate, the eccentric wheel comprises an inner wheel sleeve, an outer wheel sleeve, a compression bolt and a compression cover, a positioning shaft is detachably arranged on the mounting plate, the whole eccentric wheel is convenient to disassemble and assemble, and the positioning shaft is vertically arranged; the positioning shaft is fixedly sleeved with an inner wheel sleeve, after the positioning shaft and the inner wheel sleeve are combined, the inner wheel sleeve does not rotate, the inner wheel sleeve is sleeved with an outer wheel sleeve, the outer wheel sleeve is an eccentric sleeve, a tooth structure is arranged on the joint face of the outer wheel sleeve and the inner wheel sleeve and used for preventing the outer wheel sleeve from circumferentially rotating, and the outer wheel sleeve is connected to the inner wheel sleeve in an up-down sliding mode so that the outer wheel sleeve can be conveniently separated from the inner wheel sleeve; the pressing cover is arranged above the outer wheel sleeve in a buckled mode, the pressing bolt penetrates through the pressing cover downwards and then is fixedly connected with the positioning shaft in a threaded mode, and the fixing reliability of the outer wheel sleeve is improved. According to the utility model, by adjusting the eccentricity of the eccentric wheel, a plate is shifted and is actively aligned with a film roll, so that the accuracy of plate film coating is ensured.

Description

Technical Field

[0001] This utility model relates to the field of plate alignment device technology, and in particular to an eccentric wheel for an alignment device. Background Technology

[0002] Alignment devices are commonly used in sheet material conveying processes. For example, alignment is required before the sheet material enters the polishing machine or the laminating machine. Taking alignment before lamination as an example: the aluminum sheet moves on the roller conveyor, which then moves it to the laminating machine. Before the sheet enters the laminating machine, the roller conveyor stops, and at least two alignment devices operate synchronously to position the aluminum sheet in the middle of the roller conveyor. Afterward, the roller conveyor restarts and sends the sheet to the laminating machine, where the film is tightly bonded to the surface of the aluminum sheet, improving its protective performance.

[0003] The function of the centering device is to center the sheet metal and ensure that it can accurately enter the next process. Centering devices are existing technologies. For example, CN211466610U discloses a transport centering adjustment device and CN215556921U discloses a sheet metal roller conveyor centering device, both of which disclose the structure and principle of the centering device.

[0004] A typical alignment device includes a mounting box, gears and racks, and alignment wheels. A gear, driven by a motor, is located at the center of the mounting box. Two racks mesh with each other on either side of the gear, arranged parallel to each other at intervals. The ends of the racks extend out of the mounting box, and alignment wheels are mounted on one end of each rack. The alignment wheels on the two racks are positioned on opposite sides of the width direction of the roller conveyor. Figure 1 As shown.

[0005] The centering device operates as follows: after the aluminum plate stops on the roller conveyor, the gear rotates actively, driving the two racks to move relative to each other, and then the centering wheels on both sides move closer to each other. The two centering wheels clamp the aluminum plate and move it to the center position. The two centering wheels in each centering device move the same distance, ensuring that the aluminum plate can be centered on the roller conveyor.

[0006] Note: The film rolls on the laminating machine are installed manually, and the accuracy of the installation position directly affects the accuracy of the lamination. For example... Figure 2 As shown, if the membrane roll is installed accurately, the membrane will just cover the edges of both sides of the aluminum plate; Figure 3 As shown, if the film roll is installed in a deviated position, the film cannot be aligned with the edge of the aluminum plate, and thus the film cannot accurately cover the entire surface of the aluminum plate, resulting in a poor coating effect.

[0007] Since the film roll needs to be led out and wound onto the laminating machine immediately after installation, the position of the film roll is inconvenient to adjust. Therefore, it is necessary to actively adjust the position of the aluminum plate according to the position of the film roll, so that the aluminum plate is no longer centered, but actively corresponds to the position of the film roll. Therefore, the centering roller needs to be redesigned. Summary of the Invention

[0008] To address the problem that the centering wheel can only center the sheet material but cannot adaptively adjust its position according to the film roll position, this invention provides an eccentric wheel for the centering device. The centering wheel in the original centering device is replaced with an eccentric wheel, and the rotation position of the eccentric wheel is adjustable. If there is a deviation in the installation of the film roll, the eccentric wheel can be adjusted to make the sheet material aligned with the deviated film roll after centering, thus ensuring the accuracy of film coating.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] An eccentric wheel for a centering device is provided. The rack end of the centering device is mounted with a mounting plate, and the eccentric wheel is provided on the mounting plate. The eccentricity of the eccentric wheel is easy to adjust. The eccentric wheel includes an inner wheel sleeve, an outer wheel sleeve, a clamping bolt, and a clamping cover. A positioning shaft is detachably provided on the mounting plate to facilitate the disassembly and assembly of the entire eccentric wheel. The positioning shaft is arranged vertically.

[0011] The positioning shaft is fitted with an inner wheel sleeve. When the two are combined, the inner wheel sleeve does not rotate. The inner wheel sleeve is fitted with an outer wheel sleeve, which is an eccentric sleeve. The mating surfaces of the outer wheel sleeve and the inner wheel sleeve are provided with a tooth structure to prevent the outer wheel sleeve from rotating circumferentially. The outer wheel sleeve slides up and down on the inner wheel sleeve, making it easy for the outer wheel sleeve to detach from the inner wheel sleeve.

[0012] The clamping cover is fastened above the outer wheel sleeve, and the clamping bolt passes downward through the clamping cover and is threadedly connected to the positioning shaft for fixation, which improves the reliability of the outer wheel sleeve fixation.

[0013] Furthermore, the positioning shaft is a stepped shaft, and the minor diameter section of the positioning shaft is cylindrical. The minor diameter section of the positioning shaft is threadedly connected to the mounting plate, which improves the reliability of the positioning shaft installation. After the minor diameter section of the positioning shaft passes downward through the mounting plate, it is threadedly connected to a round nut, which further increases the reliability of the positioning shaft installation.

[0014] The large diameter section of the positioning shaft is a prism, and the length of the large diameter section is greater than that of the small diameter section. The large diameter section and the small diameter section of the positioning shaft are integrally formed.

[0015] Furthermore, the inner wall of the inner wheel sleeve has a prism structure, and the inner wheel sleeve is fitted onto the large diameter section of the positioning shaft, with the inner wheel sleeve and the large diameter section of the positioning shaft at the same height.

[0016] Furthermore, the center of the outer wheel sleeve is not concentric with the center of the inner wheel sleeve, and the outer wheel sleeve and the inner wheel sleeve are at the same height;

[0017] The number of tooth structures is two sets arranged vertically at intervals. Each set of tooth structures includes an inner tooth ring and an outer tooth ring. The inner sleeve is provided with an outer tooth ring at its end, and the outer sleeve is provided with an inner tooth ring at its end. The outer tooth ring and the inner tooth ring, which are located at the same height, mesh with each other to ensure that the outer sleeve does not rotate.

[0018] Furthermore, the clamping cover is a circular cover with a cross-section in the shape of "]". The clamping cover is coaxially arranged above the inner wheel sleeve, and the edge of the clamping cover is tightly pressed against the outer wheel sleeve, restricting the axial movement and circumferential rotation of the outer wheel sleeve.

[0019] The beneficial effects of this utility model through the above technical solution are:

[0020] This utility model has a reasonable structural design. It replaces the original centering wheel with an optimized eccentric wheel. This allows the eccentricity of the eccentric wheel to be adjusted according to the installation position of the film roll. This ensures that when the centering device drives the two eccentric wheels to clamp the board, it causes the board to shift and align with the film roll, thereby ensuring the accuracy of the board coating.

[0021] The positioning shaft of this invention is externally fixed with an inner sleeve to ensure that the inner sleeve does not rotate. Furthermore, the inner and outer sleeves are engaged by a gear ring to ensure that the outer sleeve does not rotate. Under the constraint of the clamping cover and clamping bolts, the reliability of the outer sleeve's fixation is further improved. When the clamping cover and clamping bolts are removed, the outer sleeve can move axially and then rotate circumferentially to adjust its eccentric position. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the operation status of the centering device.

[0023] Figure 2 This is a schematic diagram showing the accurate installation position of the membrane roll. In the diagram, A represents the end face of the membrane roll.

[0024] Figure 3 This is a schematic diagram showing a deviation in the installation position of the membrane roll. In the diagram, A represents the end face of the membrane roll.

[0025] Figure 4 This is an isometric drawing of an eccentric wheel used in a centering device according to this utility model.

[0026] Figure 5 This is one of the cross-sectional views of an eccentric wheel used in a centering device according to this utility model.

[0027] Figure 6 This is the second cross-sectional view of an eccentric wheel used in a centering device according to this utility model.

[0028] Figure 7 This is a schematic diagram of the application state of an eccentric wheel for a centering device according to the present invention. The eccentric positions of the eccentric wheels on both sides of each centering device are different.

[0029] The attached diagram is labeled as follows: 1. Plate, 2. Roller conveyor, 31. Mounting box, 32. Gear, 33. Rack, 34. Centering wheel, 4. Laminating machine, 5. Film roll, 6. Mounting plate, 7. Inner wheel sleeve, 8. Outer wheel sleeve, 9. Clamping bolt, 10. Clamping cover, 11. Positioning shaft, 12. Large diameter section, 13. Small diameter section, 14. Round nut, 15. Inner gear ring, 16. Outer gear ring. Detailed Implementation

[0030] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0031] like Figures 4-7 As shown, an eccentric wheel is used in a centering device. A mounting plate 6, which is L-shaped, is installed at the end of a rack 33 in the centering device. One end of the mounting plate 6 passes through the end of the rack 33, and two nuts are threadedly connected to the end of the rack 33. The two nuts clamp the mounting plate 6, achieving a reliable connection between the rack 33 and the mounting plate 6. Therefore, movement of the rack 33 can drive the mounting plate 6 to move together.

[0032] The mounting plate 6 originally had a centering wheel 34 installed on it. Now, the centering wheel 34 needs to be replaced with an eccentric wheel, such as... Figure 4 As shown. Specifically, the mounting plate 6 is equipped with an eccentric wheel, which includes an inner wheel sleeve 7, an outer wheel sleeve 8, a clamping bolt 9, and a clamping cover 10, as shown. Figure 5 As shown.

[0033] To facilitate the installation of the inner wheel sleeve 7, a positioning shaft 11 is detachably mounted on the mounting plate 6, and the positioning shaft 11 is arranged vertically. The inner wheel sleeve 7 is fixedly sleeved on the outside of the positioning shaft 11, so that the inner wheel sleeve 7 cannot rotate relative to the positioning shaft 11, thus ensuring the fixed installation of the inner wheel sleeve 7.

[0034] In this embodiment, the positioning shaft 11 is a stepped shaft, with the large diameter section 12 and the small diameter section 13 of the positioning shaft 11 integrally formed. The small diameter section 13 of the positioning shaft 11 is cylindrical and is threadedly connected to the mounting plate 6. After the small diameter section 13 of the positioning shaft 11 passes downward through the mounting plate 6, it is threadedly connected to a round nut 14, which can ensure the reliability of the connection between the positioning shaft 11 and the mounting plate 6.

[0035] To prevent the inner wheel sleeve 7 from rotating, the major diameter section 12 of the positioning shaft 11 is a prism, with a hexagonal cross-section. The length of the major diameter section 12 is much greater than that of the minor diameter section 13. Simultaneously, the inner wall of the inner wheel sleeve 7 is a prism structure that matches the major diameter section 12 of the positioning shaft 11. When the inner wheel sleeve 7 is fitted onto the major diameter section 12 of the positioning shaft 11, the prism structure helps prevent rotation. The inner wheel sleeve 7 is at the same height as the major diameter section 12 of the positioning shaft 11.

[0036] An outer wheel sleeve 8 is fitted over the inner wheel sleeve 7, and the outer wheel sleeve 8 and the inner wheel sleeve 7 are at the same height. The outer wheel sleeve 8 is an eccentric sleeve, therefore the center of the outer wheel sleeve 8 is not concentric with the center of the inner wheel sleeve 7, as shown below. Figure 6 As shown. To prevent the outer sleeve 8 from rotating, a toothed structure is provided on the mating surface of the outer sleeve 8 and the inner sleeve 7. The toothed structure prevents the outer sleeve 8 from rotating circumferentially.

[0037] In this embodiment, the number of tooth structures is two sets arranged at intervals. Each set of tooth structures includes an inner tooth ring 15 and an outer tooth ring 16. The upper and lower ends of the inner gear sleeve 7 are provided with the outer tooth ring 16, and the upper and lower ends of the outer gear sleeve 8 are provided with the inner tooth ring 15. The outer tooth ring 16 and the inner tooth ring 15, which are located at the same height, mesh with each other.

[0038] When the outer sleeve 8 is fitted over the inner sleeve 7, the outer sleeve 8 cannot rotate because the outer gear ring 16 and the inner gear ring 15 are meshed. However, the outer sleeve 8 can slide up and down on the inner sleeve 7. Moving the outer sleeve 8 upwards causes the outer gear ring 16 and the inner gear ring 15 to disengage, allowing the outer sleeve 8 to rotate circumferentially, thereby adjusting the eccentric position of the outer sleeve 8.

[0039] The principle of this invention is as follows: After replacing the original centering wheel 34 with an eccentric wheel, the eccentricity of the eccentric wheel can be manually adjusted. When there is a deviation in the installation position of the membrane roll 5, the eccentric position of the eccentric wheel can be adjusted. This allows the centering device to offset the plate 1 and align it with the position of the membrane roll 5 when clamping the plate 1, thereby ensuring the accuracy of the coating process. Figure 7 As shown, it can be seen that the eccentricity of the eccentric wheels on both sides of the centering device is different.

[0040] The adjustment operation of the eccentric wheel is as follows: Manually move the outer wheel sleeve 8 upwards. The outer wheel sleeve 8 and the inner wheel sleeve 7 will no longer be engaged. Rotate the outer wheel sleeve 8 as needed to adjust the eccentric position of the outer wheel sleeve 8. After ensuring that the plate 1 can be aligned with the film roll 5, put the outer wheel sleeve 8 down. The outer wheel sleeve 8 will engage with the inner wheel sleeve 7 again. The outer wheel sleeve 8 can be kept fixed to ensure that the eccentric wheel is always in the eccentric position that matches the film roll 5.

[0041] To optimize the product structure and improve the stability of the outer sleeve 8, a clamping cover 10 is fastened above the outer sleeve 8. The clamping cover 10 is a circular cover with a cross-section in the shape of "]". The clamping cover 10 is coaxially arranged above the inner sleeve 7 but does not contact the inner sleeve 7. A clamping bolt 9 passes downward through the clamping cover 10 and is threadedly connected to the positioning shaft 11 for fixation. After tightening the clamping bolt 9, the edge of the clamping cover 10 is tightly pressed against the outer sleeve 8, which can prevent the outer sleeve 8 from moving axially and also prevent the outer sleeve 8 from rotating circumferentially.

[0042] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. An eccentric wheel for a centering device, wherein a mounting plate (6) is mounted on the end of the rack (33) of the centering device, characterized in that, An eccentric wheel is provided on the mounting plate (6). The eccentric wheel includes an inner wheel sleeve (7), an outer wheel sleeve (8), a clamping bolt (9), and a clamping cover (10). A positioning shaft (11) is detachably provided on the mounting plate (6). The positioning shaft (11) is arranged vertically. The positioning shaft (11) is fixedly fitted with an inner wheel sleeve (7), and the inner wheel sleeve (7) is fitted with an outer wheel sleeve (8). The outer wheel sleeve (8) is an eccentric sleeve. The mating surfaces of the outer wheel sleeve (8) and the inner wheel sleeve (7) are provided with a tooth structure to prevent the outer wheel sleeve (8) from rotating circumferentially. The outer wheel sleeve (8) slides up and down on the inner wheel sleeve (7). The clamping cover (10) is fastened above the outer wheel sleeve (8), and the clamping bolt (9) passes downward through the clamping cover (10) and is threadedly connected to the positioning shaft (11) for fixation.

2. An eccentric wheel for a centering device according to claim 1, characterized in that, The positioning shaft (11) is a stepped shaft, and the small diameter section (13) of the positioning shaft (11) is a cylinder. The small diameter section (13) of the positioning shaft (11) is threadedly connected to the mounting plate (6). After the small diameter section (13) of the positioning shaft (11) passes downward through the mounting plate (6), a round nut (14) is threadedly connected to it. The large diameter section (12) of the positioning shaft (11) is a prism, and the length of the large diameter section (12) of the positioning shaft (11) is greater than that of the small diameter section (13). The large diameter section (12) and the small diameter section (13) of the positioning shaft (11) are integrally formed.

3. An eccentric wheel for a centering device according to claim 2, characterized in that, The inner wall of the inner wheel sleeve (7) is a prism structure. The inner wheel sleeve (7) is fitted on the large diameter section (12) of the positioning shaft (11). The inner wheel sleeve (7) and the large diameter section (12) of the positioning shaft (11) are at the same height.

4. An eccentric wheel for a centering device according to claim 1, characterized in that, The center of the outer wheel sleeve (8) is not concentric with the center of the inner wheel sleeve (7), and the outer wheel sleeve (8) and the inner wheel sleeve (7) are at the same height; The number of tooth structures is two sets arranged at intervals. Each set of tooth structures includes an inner tooth ring (15) and an outer tooth ring (16). The inner gear sleeve (7) is provided with an outer tooth ring (16) at its end, and the outer gear sleeve (8) is provided with an inner tooth ring (15) at its end. The outer tooth ring (16) and the inner tooth ring (15) located at the same height mesh with each other.

5. An eccentric wheel for a centering device according to claim 1, characterized in that, The clamping cover (10) is a circular cover with a "]" shape in cross section. The clamping cover (10) is coaxially arranged above the inner wheel sleeve (7), and the edge of the clamping cover (10) is tightly pressed against the outer wheel sleeve (8).

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