Leveling device for electroplating tin plate
By introducing a moving plate and spring limiting structure into the electroplated tin plate leveling device, the problem of easy damage to micro switches is solved, the protection of micro switches is realized, and the stable operation of the device is ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINYI DINGXIANG ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-19
AI Technical Summary
Existing electro-galvanized steel sheet leveling devices are prone to damaging microswitches when facing protrusions on the steel sheet surface, leading to device failure.
Design a leveling device for tin-plated plates. A movable plate is installed inside the box, and the bottom of the movable plate is connected to a spring. A limit block is provided on the inner side wall of the box. When a bulge appears on the surface of the steel plate, the upright and the spring drive the movable plate to move upward and trigger a micro switch. When the bulge is large, the movable plate contacts the limit block and stops rising. The upright is compressed by the spring, protecting the micro switch.
It effectively protects the micro switch from damage, ensures the normal operation of the device, and avoids damage to the micro switch due to excessive protrusion height.
Smart Images

Figure CN224253887U_ABST
Abstract
Description
Technical Field
[0001] This patent relates to the field of leveling technology, specifically a leveling device for electroplated tin plates. Background Technology
[0002] After the galvanizing of the surface of the electro-galvanized steel sheet is completed, the surface of the steel sheet needs to be leveled by a leveling mechanism to ensure the appearance quality of the subsequent products. The existing leveling mechanism consists of a pole and a trigger box. The top of the pole can be attached to the micro switch in the trigger box. When a protrusion appears on the surface of the steel sheet, the pole moves upward to trigger the micro switch. However, when the height of the protrusion is greater than the activation of the micro switch, it is easy to damage the micro switch. Therefore, we propose a leveling device for electroplated tin sheets. Utility Model Content
[0003] To address the shortcomings of existing technologies, the purpose of this patent is to provide a leveling device for tin-plated plates. This patent involves installing a movable plate inside a housing. The bottom of the movable plate is connected to a vertical rod via a spring, and a limit block is installed on the inner wall of the housing. When a protrusion appears on the surface of the steel plate, the vertical rod, the taut spring, and the movable plate move upward. The upward movement of the movable plate triggers a micro switch. When the protrusion is large, the top of the movable plate will contact the limit block. At this point, the movable plate triggers the micro switch but will not continue to move upward. Meanwhile, the continuous upward movement of the vertical rod will be compressed by the spring, thus preventing damage to the micro switch.
[0004] The technical solution adopted by this patent to solve its technical problem is: a leveling device for electroplated tin plates, including a base and a horizontal plate. The top left and right sides of the base are provided with wheel grooves. Support rods are installed at the four corners of the bottom of the horizontal plate. Rollers are installed at the bottom ends of the support rods. The bottom ends of the rollers are rolled in the wheel grooves. The horizontal plate is provided with a rectangular hole. A lead screw motor is fixedly installed on the top right side of the horizontal plate. A screw is installed on the left end of the shaft of the lead screw motor. A threaded seat is screwed onto the side wall of the screw. A connecting rod is fixedly installed at the bottom end of the threaded seat. A box is fixedly installed at the bottom end of the connecting rod. A vertical rod is installed at the bottom of the box. A contact rod is fixedly installed at the bottom end of the vertical rod.
[0005] A micro switch is fixedly installed on the inner top wall of the box. A movable plate is attached to the bottom of the micro switch. A circular groove is provided at the bottom of the movable plate. Limit blocks are fixedly installed on the inner left and right side walls of the box. A through hole is provided at the bottom of the box. A spring is attached to the top of the upright through the through hole. The top of the spring is fixedly installed on the top wall of the circular groove.
[0006] Furthermore, the bottom center of the limiting block is provided with a sliding hole, and sliding rods are fixedly installed at both ends of the moving plate, with the top end of the sliding rod inserted into the sliding hole.
[0007] Furthermore, a connecting ring is fixedly installed on the side wall of the upright, and the connecting ring is located inside the box.
[0008] Furthermore, the box body includes a first shell and a second shell, which are fitted together.
[0009] Furthermore, mounting holes are provided at all four corners of the first housing, and threaded posts are installed at all four top corners of the second housing, with nuts screwed onto the top of each threaded post through the mounting hole.
[0010] The beneficial effects of this patent are:
[0011] 1. This patent involves installing a movable plate inside the box. The bottom of the movable plate is connected to the upright via a spring, and a limit block is installed on the inner wall of the box. When a protrusion appears on the surface of the steel plate, the upright, the taut spring, and the movable plate move upward. The upward movement of the movable plate triggers a micro switch. When the protrusion is large, the top of the movable plate will contact the limit block. At this time, the movable plate triggers the micro switch but will not continue to move upward. The upward movement of the upright will be compressed by the spring, thus preventing damage to the micro switch. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this patent.
[0013] Figure 2 This is a schematic diagram of the box body of this patent.
[0014] Figure 3 This is a three-dimensional view of the box body of this patent.
[0015] Explanation of reference numerals in the attached drawings: 1. Base, 2. Wheel groove, 3. Horizontal plate, 4. Support rod, 5. Roller, 6. Rectangular hole, 7. Lead screw motor, 8. Screw, 9. Threaded seat, 10. Connecting rod, 11. Box body, 12. Vertical rod, 13. Contact rod, 14. Micro switch, 15. Limit block, 16. Moving plate, 17. Circular groove, 18. Spring, 19. Sliding hole, 20. Sliding rod, 21. Connecting ring, 22. First housing, 23. Second housing. Detailed Implementation
[0016] The present patent is further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the patent. Furthermore, it should be understood that after reading the teachings of this patent, those skilled in the art can make various alterations or modifications to this patent, and these equivalent forms also fall within the scope defined by the appended claims.
[0017] See Figure 1 , Figure 2 and Figure 3This is a schematic diagram of the structure of this patent. A leveling device for electroplated tin plates includes a base 1 and a horizontal plate 3. The top left and right sides of the base 1 are provided with wheel grooves 2. The bottom four corners of the horizontal plate 3 are all equipped with support rods 4. The bottom end of the support rods 4 is equipped with rollers 5. The bottom end of the rollers 5 is rolled in the wheel grooves 2. The horizontal plate 3 is provided with rectangular holes 6. The top right side of the horizontal plate 3 is fixedly installed with a lead screw motor 7. The left end of the shaft of the lead screw motor 7 is equipped with a screw rod 8. The side wall of the screw rod 8 is screwed with a threaded seat 9. The bottom end of the threaded seat 9 is fixedly installed with a connecting rod 10. The bottom end of the connecting rod 10 is fixedly installed with a box body 11. The bottom of the box body 11 is equipped with a vertical rod 12. The bottom end of the vertical rod 12 is fixedly installed with a contact rod 13.
[0018] Figure 1 In the middle, the connecting rod 10 is a square rod, and the front and rear sides of the connecting rod 10 slide against the front and rear sidewalls of the inner sidewalls of the rectangular hole 6 respectively, which is used to limit the movement trajectory of the threaded seat 9 so that it can only move left and right and avoid rotation.
[0019] A micro switch 14 is fixedly installed on the top wall inside the box 11. A movable plate 16 is attached to the bottom of the micro switch 14. A circular groove 17 is provided at the bottom of the movable plate 16. Limit blocks 15 are fixedly installed on the left and right side walls inside the box 11. A through hole is provided at the bottom of the box 11. A spring 18 is attached to the top of the upright 12 through the through hole. The top of the spring 18 is fixedly installed on the top wall of the circular groove 17.
[0020] like Figure 2 As shown, the distance between the movable plate 16 and the limiting block 15 is the safe triggering distance of the micro switch 14, and the spring 18 is in a taut and compressed state.
[0021] Specifically, the bottom center of the limiting block 15 is provided with a sliding hole 19, and the left and right ends of the movable plate 16 are fixedly installed with sliding rods 20, the top of the sliding rods 20 being inserted into the sliding hole 19.
[0022] The top of the slide bar 20 is inserted into the inside of the slide hole 19 to limit the movement trajectory of the moving plate 16, so that it can only move up and down.
[0023] Specifically, a connecting ring 21 is fixedly installed on the side wall of the upright 12, and the connecting ring 21 is located inside the box 11.
[0024] The connecting ring 21 is designed to prevent the upright 12 from detaching from the housing 11.
[0025] Specifically, the box 11 includes a first shell 22 and a second shell 23, which are aligned with each other.
[0026] By dividing the box 11 into a first shell 22 and a second shell 23, it is easier to assemble the internal structure of the box 11 in the early stage.
[0027] Specifically, the first housing 22 has mounting holes at all four corners, and the second housing 23 has threaded posts at all four top corners, with nuts screwed onto the top of the threaded posts through the mounting holes.
[0028] Working principle: The screw motor 7 can drive the threaded seat 9 and the contact rod 13 to move left and right, or the horizontal plate 3 can move the position of the contact rod 13 back and forth. When a protrusion appears on the top of the steel plate, the upright rod 12 moves upward, driving the moving plate 16 to move upward and triggering the alarm of the trigger switch 14. When the protrusion is large, the top of the moving plate 16 will not move upward after contacting the limit block 15, thus protecting the micro switch. At the same time, if the upright rod 12 continues to move upward, it will be compressed by the spring 18.
[0029] It should be noted that the device structure and accompanying drawings of this patent mainly describe the principle of this patent. In terms of the technical aspects of this design principle, the setting of the device's power mechanism, power supply system and control system is not fully described. However, those skilled in the art who understand the principle of the above patent can clearly understand the specifics of its power mechanism, power supply system and control system.
[0030] This patent features a movable plate installed inside the box. The bottom of the movable plate is connected to the upright via a spring, and a limit block is installed on the inner wall of the box. When a protrusion appears on the surface of the steel plate, the upright, the taut spring, and the movable plate move upward. The upward movement of the movable plate triggers a micro switch. When the protrusion is large, the top of the movable plate will contact the limit block. At this point, the movable plate triggers the micro switch but will not continue to move upward. Meanwhile, the upward movement of the upright will be compressed by the spring, thus preventing damage to the micro switch.
[0031] In the description of this patent, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent 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. At the same time, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.
[0032] Although embodiments of this patent have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this patent, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A leveling device for tin-plated sheets, characterized in that: The device includes a base (1) and a horizontal plate (3). The top left and right sides of the base (1) are provided with wheel grooves (2). The bottom four corners of the horizontal plate (3) are provided with support rods (4). The bottom end of the support rods (4) is provided with rollers (5). The bottom end of the rollers (5) is rolled in the wheel grooves (2). The horizontal plate (3) is provided with rectangular holes (6). The top right side of the horizontal plate (3) is fixedly installed with a lead screw motor (7). The left end of the shaft of the lead screw motor (7) is provided with a screw rod (8). The side wall of the screw rod (8) is screwed with a threaded seat (9). The bottom end of the threaded seat (9) is fixedly installed with a connecting rod (10). The bottom end of the connecting rod (10) is fixedly installed with a box body (11). The bottom of the box body (11) is provided with a vertical rod (12). The bottom end of the vertical rod (12) is fixedly installed with a contact rod (13). A micro switch (14) is fixedly installed on the inner top wall of the box (11). A movable plate (16) is attached to the bottom of the micro switch (14). A circular groove (17) is provided at the bottom of the movable plate (16). Limit blocks (15) are fixedly installed on the inner left and right side walls of the box (11). A through hole is provided at the bottom of the box (11). A spring (18) is attached to the top of the upright (12) through the through hole. The top of the spring (18) is fixedly installed on the top wall of the circular groove (17).
2. The leveling device for tin-plating plates according to claim 1, characterized in that: The bottom center of the limiting block (15) is provided with a sliding hole (19), and the left and right ends of the moving plate (16) are fixedly installed with sliding rods (20), the top end of the sliding rods (20) is inserted into the sliding hole (19).
3. The leveling device for tin-plating plates according to claim 1, characterized in that: A connecting ring (21) is fixedly installed on the side wall of the upright (12), and the connecting ring (21) is located inside the box (11).
4. The leveling device for tin-plating plates according to claim 1, characterized in that: The box body (11) includes a first shell (22) and a second shell (23), which are aligned with each other.
5. A leveling device for tin-plating plates according to claim 4, characterized in that: The first housing (22) has mounting holes at all four corners, and the second housing (23) has threaded posts at all four top corners. The top of the threaded posts is threaded with nuts through the mounting holes.