A wiping device with a positioning mechanism

Abstract

The utility model provides a kind of wiping equipment with positioning mechanism, including fixed support, driving mechanism, supply reel, storage reel and positioning assembly;Supply reel and storage reel rotatably installed on fixed support, dust-free cloth is exported from supply reel, and is rolled by storage reel after being guided by positioning assembly.The wiping equipment with positioning mechanism of the utility model solves the problem of low positioning accuracy when performing wiping action due to the lack of rigid positioning mechanism in the wiping head used in related technology, and mainly relies on flexible wiping material to directly contact and deform on the product surface.

Description

Technical Field

[0001] This utility model belongs to the field of wiping equipment technology, and in particular relates to a wiping device with a positioning mechanism. Background Technology

[0002] Automated wiping equipment, installed at the end effector of industrial robot arms or high-precision gantry mechanical systems, uses a drive mechanism to control a wiping head fitted with a flexible lint-free cloth or other fibrous material to perform precise cleaning tasks on product surfaces. However, because the wiping heads used in these technologies lack a rigid positioning mechanism and rely primarily on the flexible wiping material directly contacting and deforming against the product surface, uncertainties and dynamic drift occur in the actual contact area and pressure distribution between the wiping cloth and the product surface during the wiping action, resulting in low positioning accuracy of the wiping position. Summary of the Invention

[0003] In view of this, the present invention aims to at least partially solve one of the related technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A wiping device with a positioning mechanism includes a fixed bracket, a drive mechanism, a feed reel, a storage reel, and a positioning component;

[0006] The feed reel and the storage reel are rotatably mounted on the fixed bracket. The lint-free cloth is output from the feed reel, guided by the positioning component, and then wound up by the storage reel.

[0007] The positioning component includes:

[0008] The top of the positioning bracket is elastically connected to the bottom of the fixed bracket via a buffer mechanism.

[0009] The positioning wheel is rigidly installed at the bottom of the positioning bracket, and its outer edge forms rolling contact with the surface of the product to be wiped; the lint-free cloth is wrapped around the outer edge of the positioning wheel to form a rigid wiping end that directly contacts the product surface; the driving mechanism drives the storage reel to rotate, realizing the feeding and renewal of the lint-free cloth.

[0010] Furthermore, the buffer mechanism includes a first mounting plate, a second mounting plate, a limiting plate, a screw, and a first compression spring. The first mounting plate is disposed at the bottom of the fixed bracket. The second mounting plate is slidably engaged with the fixed bracket via a slide rail structure. The limiting plate is disposed at the bottom of the second mounting plate. The screw passes through the limiting plate and is detachably connected to the first mounting plate. The first compression spring is sleeved on the screw. One end of the first compression spring abuts against the countersunk head of the screw, and the other end of the first compression spring abuts against the limiting plate. The top of the positioning bracket is connected to the second mounting plate.

[0011] Furthermore, it also includes a tensioning mechanism, which includes a tensioning wheel, a tension spring, a third mounting plate, and a support rod. One end of the tension spring is connected to the third mounting plate, and the other end of the tension spring is connected to the fixed bracket through the support rod. The third mounting plate slides with the fixed bracket through a transverse slide rail, and the third mounting plate is connected to the tensioning wheel through a roller support rod. The tensioning wheel is used to tension the cleanroom cloth.

[0012] Furthermore, it also includes a damping mechanism, which includes a damper spindle that passes through the fixed bracket, a fastening nut for connecting the end of the damper spindle to the feed reel, a bearing seat that supports the damper spindle and is connected to the fixed bracket, a first friction plate fixed to the bearing seat, a fourth mounting plate fixed to the damper spindle, a second friction plate fixed to the fourth mounting plate, a second compression spring stop and a second compression spring sleeved on the damper spindle, and an adjusting nut that is threaded to the damper spindle.

[0013] The two friction plates cooperate with each other. The adjusting nut drives the second compression spring to produce elastic deformation by axially pressing the second compression spring baffle, thereby forcing the other end of the second compression spring to squeeze the two friction plates. The damping torque generated between the two friction plates is adjusted by turning the adjusting nut to change the pressure of the second compression spring.

[0014] Furthermore, the fixed bracket is provided with two counterweight holes.

[0015] Furthermore, it also includes a first anti-detachment plate and a second anti-detachment plate, which are symmetrically arranged on the end face of the fixed bracket, and each of the anti-detachment plates is provided with a through groove through which a lint-free cloth can pass.

[0016] Furthermore, the driving mechanism is a servo motor.

[0017] Compared with existing technologies, the wiping device with a positioning mechanism described in this utility model has the following advantages:

[0018] 1. The positioning component rigidly mounts the positioning wheel to the bottom of the elastically supported positioning bracket, making the cleanroom cloth covering the outer edge of the positioning wheel form a rigid wiping end. With the vertical floating compensation provided by the buffer mechanism, it ensures that the outer edge of the positioning wheel maintains a constant rolling contact with the product surface to eliminate deformation errors when the flexible cloth is directly wiped. It also achieves repeated positioning of the wiping path through rigid transmission of mechanical motion trajectory, fundamentally solving the positioning drift problem caused by deformation of traditional flexible wiping cloths.

[0019] 2. The buffer mechanism adopts a sliding rail guided mounting plate structure with compression spring preload. When the positioning wheel is subjected to unevenness of the product surface or external impact, the second mounting plate generates adaptive displacement along the sliding rail and compresses the compression spring. The compression spring converts the impact load into controllable elastic deformation, which absorbs vertical vibration energy while limiting displacement overtravel. This protects the stability of the contact force between the positioning wheel and the product surface and avoids equipment damage caused by rigid collisions, significantly improving the system's anti-interference capability and service life. Attached Figure Description

[0020] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0021] Figure 1 This is a schematic diagram of a wiping device with a positioning mechanism according to an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the buffer mechanism, damping mechanism and tensioning mechanism described in the embodiments of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 0. Cleanroom wipes; 1. Storage reel; 2. Feeding reel; 3. Tensioning wheel; 4. First anti-detachment plate; 5. Positioning wheel; 6. Second anti-detachment plate; 7. Positioning frame; 8. Servo motor; 9. Roller support rod; 10. Third mounting plate; 11. Tension spring; 12. Support rod; 13. First mounting plate; 14. Limiting plate; 15. Second mounting plate; 16. First compression spring; 17. Screw; 18. Slide rail structure; 20. Damping mechanism; 21. Damper spindle; 22. Adjusting nut; 23. Second compression spring baffle; 24. Second compression spring; 25. Fourth mounting plate; 26. Second friction plate; 27. Bearing seat; 28. Fastening nut. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] A wiping device with a positioning mechanism, such as Figure 1 As shown, the system includes a fixed bracket, a drive mechanism, a feed reel 2, a storage reel 1, and a positioning assembly. The feed reel 2 and the storage reel 1 are rotatably mounted on the fixed bracket. The cleanroom cloth 0 is output from the feed reel 2, guided by the positioning assembly, and then wound up by the storage reel 1. The fixed bracket has two counterweight holes. It also includes a first anti-detachment plate 4 and a second anti-detachment plate 6, which are symmetrically arranged on the end face of the fixed bracket. Each anti-detachment plate has a through groove through which the cleanroom cloth 0 can pass. The drive mechanism is a servo motor 8.

[0030] The positioning component includes: a positioning bracket, the top of which is elastically connected to the bottom of a fixed bracket via a buffer mechanism; a positioning wheel 5, which is rigidly installed on the bottom of the positioning bracket, and its outer edge forms rolling contact with the surface of the product to be wiped; wherein, a lint-free cloth 0 covers the outer edge of the positioning wheel 5, forming a rigid wiping end that directly contacts the product surface; and a drive mechanism drives the storage reel 1 to rotate, thereby realizing the feeding and updating of the lint-free cloth 0.

[0031] The positioning component rigidly mounts the positioning wheel 5 to the bottom of the elastically supported positioning bracket, making the cleanroom cloth 0 covering the outer edge of the positioning wheel 5 form a rigid wiping end. With the vertical floating compensation provided by the buffer mechanism, it ensures that the outer edge of the positioning wheel 5 maintains a constant rolling contact with the product surface to eliminate deformation errors when the flexible cloth is directly wiped. It also achieves repeated positioning of the wiping path through rigid transmission of mechanical motion trajectory, fundamentally solving the positioning drift problem caused by deformation of traditional flexible wiping cloths.

[0032] The buffer mechanism includes a first mounting plate 13, a second mounting plate 15, a limiting plate 14, a screw 17, and a first compression spring 16. The first mounting plate 13 is located at the bottom of the fixed bracket. The second mounting plate 15 is slidably engaged with the fixed bracket through a slide rail structure 18. The limiting plate 14 is located at the bottom of the second mounting plate 15. The screw 17 passes through the limiting plate 14 and is detachably connected to the first mounting plate 13. The first compression spring 16 is sleeved on the screw 17. One end of the first compression spring 16 abuts against the countersunk head of the screw 17, and the other end of the first compression spring 16 abuts against the limiting plate 14. The top of the positioning bracket is connected to the second mounting plate 15.

[0033] The buffer mechanism adopts a sliding rail-guided mounting plate structure with spring preload. When the positioning wheel 5 is subjected to unevenness of the product surface or external impact, the second mounting plate 15 generates adaptive displacement along the sliding rail and compresses the spring. The spring converts the impact load into controllable elastic deformation, which absorbs vertical vibration energy while limiting displacement overtravel. This protects the stability of the contact force between the positioning wheel 5 and the product surface, avoids equipment damage caused by rigid collisions, and significantly improves the system's anti-interference capability and service life.

[0034] It also includes a tensioning mechanism, which includes a tensioning wheel 3, a tension spring 11, a third mounting plate 10, and a support rod 12. One end of the tension spring 11 is connected to the third mounting plate 10, and the other end of the tension spring 11 is connected to the fixed bracket through the support rod 12. The third mounting plate 10 is slidably engaged with the fixed bracket through a transverse slide rail. The third mounting plate 10 is connected to the tensioning wheel 3 through a roller support rod 9. The tensioning wheel 3 is used to tension the cleanroom cloth 0.

[0035] The tensioning mechanism utilizes the mounting plate supported by the transverse slide rail and the tension spring 11 to form a tensioning system. When the cleanroom cloth 0 experiences tension fluctuations due to changes in feed speed or length expansion and contraction, the tensioning wheel 3 is displaced in real time along the slide rail under the action of the tension spring 11. The constant elastic return force compensates for changes in the tightness of the cloth, ensuring that the cleanroom cloth 0 is always taut in the section covered by the positioning wheel 5. This eliminates wiping trajectory deviation or wrinkle contact defects caused by cloth slack and maintains the spatial uniformity of wiping pressure.

[0036] It also includes a damping mechanism 20, which includes a damper spindle 21 passing through a fixed bracket, a fastening nut 28 for connecting the end of the damper spindle 21 to the feed reel 2, a bearing seat 27 supporting the damper spindle 21 and connected to the fixed bracket, a first friction plate fixed to the bearing seat 27, a fourth mounting plate 25 fixed to the damper spindle 21, a second friction plate 26 fixed to the fourth mounting plate 25, a second compression spring baffle 23 and a second compression spring 24 sleeved on the damper spindle 21, and an adjusting nut 22 threadedly connected to the damper spindle 21; wherein the two friction plates cooperate with each other, and the adjusting nut 22 drives the second compression spring 24 to produce elastic deformation by axially pressing the second compression spring baffle 23, thereby forcing the other end of the second compression spring 24 to squeeze the two friction plates, and the damping torque generated between the two friction plates is adjusted by turning the adjusting nut 22 to change the pressure of the second compression spring 24.

[0037] The damping mechanism 20 drives the compression spring to axially compress the double friction plate pair through the adjusting nut 22, which linearly converts the mechanical twisting amount into an adjustable friction torque. When the feed reel 2 rotates non-driven due to inertia, the damping torque generated between the friction plate and the mounting plate actively suppresses the free rotation of the reel, effectively eliminating the inertial loosening phenomenon during the release of the cloth. This ensures that the tension of the cleanroom cloth 0 is constant from the feed end to the positioning wheel 5, thus preventing the attenuation of the wiping end positioning accuracy caused by the fluctuation of the feed from the source.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A wiping device with a positioning mechanism, characterized in that: Includes a fixed bracket, a drive mechanism, a feeding reel (2), a storage reel (1), and a positioning assembly; The feeding reel (2) and the storage reel (1) are rotatably mounted on the fixed bracket. The lint-free cloth (0) is output from the feeding reel (2), guided by the positioning component, and then wound up by the storage reel (1). The positioning component includes: The top of the positioning bracket is elastically connected to the bottom of the fixed bracket via a buffer mechanism. The positioning wheel (5) is rigidly installed at the bottom of the positioning bracket, and its outer edge forms rolling contact with the surface of the product to be wiped; wherein, the lint-free cloth (0) covers the outer edge of the positioning wheel (5) to form a rigid wiping end that directly contacts the surface of the product; the driving mechanism drives the storage reel (1) to rotate, thereby realizing the feeding and updating of the lint-free cloth (0).

2. The wiping device with a positioning mechanism according to claim 1, characterized in that: The buffer mechanism includes a first mounting plate (13), a second mounting plate (15), a limiting plate (14), a screw (17), and a first compression spring (16). The first mounting plate (13) is disposed at the bottom of the fixed bracket. The second mounting plate (15) is slidably engaged with the fixed bracket through a slide rail structure (18). The limiting plate (14) is disposed at the bottom of the second mounting plate (15). The screw (17) passes through the limiting plate (14) and is detachably connected to the first mounting plate (13). The first compression spring (16) is sleeved on the screw (17). One end of the first compression spring (16) abuts against the countersunk head of the screw (17), and the other end of the first compression spring (16) abuts against the limiting plate (14). The top of the positioning bracket is connected to the second mounting plate (15).

3. A wiping device with a positioning mechanism according to claim 2, characterized in that: It also includes a tensioning mechanism, which includes a tensioning wheel (3), a tension spring (11), a third mounting plate (10), and a support rod (12). One end of the tension spring (11) is connected to the third mounting plate (10), and the other end of the tension spring (11) is connected to the fixed bracket through the support rod (12). The third mounting plate (10) is slidably engaged with the fixed bracket through a transverse slide rail. The third mounting plate (10) is connected to the tensioning wheel (3) through a roller support rod (9). The tensioning wheel (3) is used to tension the cleanroom cloth (0).

4. A wiping device with a positioning mechanism according to any one of claims 1-3, characterized in that: It also includes a damping mechanism (20), which includes a damper spindle (21) that passes through a fixed bracket, a fastening nut (28) for connecting the end of the damper spindle (21) to the feed reel (2), a bearing seat (27) that supports the damper spindle (21) and is connected to the fixed bracket, a first friction plate fixed to the bearing seat (27), a fourth mounting plate (25) fixed to the damper spindle (21), a second friction plate (26) fixed to the fourth mounting plate (25), a second compression spring baffle (23) and a second compression spring (24) sleeved on the damper spindle (21), and an adjusting nut (22) that is threadedly connected to the damper spindle (21). The two friction plates cooperate with each other. The adjusting nut (22) drives the second spring (24) to produce elastic deformation by axially pressing the second spring baffle (23), thereby forcing the other end of the second spring (24) to squeeze the two friction plates. The pressure of the second spring (24) is changed by turning the adjusting nut (22) to adjust the damping torque generated between the two friction plates.

5. A wiping device with a positioning mechanism according to claim 4, characterized in that: The fixed bracket is provided with two counterweight holes.

6. A wiping device with a positioning mechanism according to claim 4, characterized in that: It also includes a first anti-detachment plate (4) and a second anti-detachment plate (6), which are symmetrically arranged on the end face of the fixed bracket. Each of the anti-detachment plates is provided with a through groove through which a dust-free cloth (0) can pass.

7. A wiping device with a positioning mechanism according to claim 4, characterized in that: The driving mechanism is a servo motor (8).

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