Device for preventing inertial impact of coiled material
By using an overrunning clutch and a double-threaded screw device in the winding equipment, the problem of motor inertia impact is solved, the motor is protected, maintenance costs are reduced, coil handling is simplified, and stable operation of the equipment is achieved.
Patent Information
- Application Number
- CN202422911970.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-28
AI Technical Summary
During the frequent start-stop process of traditional winding equipment, the motor is subjected to inertial impact, causing the reducer seal to leak oil or break, shortening its service life and increasing maintenance costs.
The overrunning clutch and double-threaded screw device are used to connect the roller and the reduction motor through a chain drive. The overrunning clutch is used to avoid inertia impact, and the double-threaded screw is used to clamp the coil to prevent it from continuing to move.
Effectively protect the reduction motor and base, prevent oil leakage or damage, reduce maintenance rate, reduce maintenance costs, and avoid the problem of coil stacking.
Smart Images
Figure CN223316098U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of coil production equipment, and in particular to a device for preventing coil inertial impact. Background Art
[0002] Waterproof membrane is mainly used for building walls, roofs, tunnels, roads, landfills, etc. It is a flexible building material product that can be rolled into a roll to prevent external rainwater and groundwater leakage. As a leak-proof connection between the project foundation and the building, it is the first barrier to waterproofing the entire project and plays a vital role in the entire project.
[0003] After forming, the coiled material typically needs to be wound into a roll for storage and transportation. Traditional winding equipment primarily consists of a tensioning roller, a drum, a drive roller, and a reel. After the coiled material passes through a looping structure consisting of multiple sets of tensioning rollers, drums, and drive rollers, it is wound into a roll by the reel. The drive roller is typically driven by a chain drive (belt drives are prone to overload and slipping when under load) connected to a motor. When the motor is operating normally, it drives the sprocket to rotate normally. At high speed (the coil winding speed is 65m / min, and the winder winds one roll in about 6 seconds), the material is cut after each roll is completed (or after the required number of meters is reached). There is a pause of 2-5 seconds while the winder wraps the tape around the product. Once the tape is wrapped, the winder and drum start again to wind the next roll.
[0004] The winder drives the coil to start and stop frequently. When the motor suddenly slows down or stops, the roller continues to rotate due to inertia and transmits the torque to the motor through the chain drive, causing a certain torque impact on the output shaft of the motor, resulting in oil leakage from the reducer seal or breakage of the reducer, which will damage the motor and affect its service life.
[0005] To this end, the present application provides a device for preventing coil inertial impact, which protects the motor and the motor base from impact, prevents the motor from leaking oil or being damaged, thereby reducing the maintenance rate and lowering the maintenance cost. Utility Model Content
[0006] The purpose of this application is to solve the problems existing in the prior art and to propose a device for preventing coiled material from inertial impact.
[0007] In order to achieve the above objectives, this application adopts the following technical solutions:
[0008] A device for preventing inertial impact of a coiled material comprises a bracket, on which a plurality of rollers 1 and 2 are installed for vertical staggered rotation. The coiled material is sequentially wound around roller 1 and roller 2. The plurality of rollers 1 are connected to each other via a chain drive 1 and are opened and closed synchronously. The roller 1 at the end is connected to a reduction motor fastened to the bracket via a chain drive 2, and an overrunning clutch is provided between the sprocket of the chain drive 2 and the output shaft of the reduction motor.
[0009] Preferably, the bracket is provided with mounting plates fixedly mounted at both ends of each roller, fixed splints are fixedly mounted on both sides of the mounting plate at the coil folding area, a double-threaded screw is rotatably mounted between the mounting plate and the coil folding area, the double-threaded screw is driven by a driving motor, sliders are screwed on the two threads of the double-threaded screw which slide along the axis of the two rollers, support rods are rotatably mounted on the two end surfaces of the slider facing the two fixed splints, and the two support rods are rotatably connected to the movable splint.
[0010] Preferably, guide rods are provided between the two mounting plates above and below the double-threaded lead screw, and the slider is provided with a socket that cooperates with the guide rods.
[0011] Preferably, the plurality of double-threaded screws are connected by a chain drive and driven by the same drive motor.
[0012] Preferably, the fixed splint and the movable splint are both sleeved with rubber rings.
[0013] Preferably, a tensioning assembly is provided on the bracket.
[0014] Compared with the prior art, the present application provides a device for preventing coiled material from inertial impact, which has the following beneficial effects:
[0015] During cutting, the reduction motor stops working, and Roller 1 loses its driving force and tends to stop synchronously with the reduction motor. Roller 1 is deflected by the inertia of the web, and this force is transmitted to the reduction motor through the chain. However, due to the action of the overrunning clutch, the outer ring of the bearing continues to rotate while the inner ring of the bearing remains stationary, thus avoiding impact on the reduction motor and protecting the reduction motor and reduction motor base from impact. It prevents oil leakage or damage caused by long-term and frequent impact, thereby reducing maintenance rate and cost.
[0016] Other advantages, objectives and features of the present application will be described in part in the following description; and in part, will be apparent to those skilled in the art based on an examination of the following; or, may be taught from the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a three-dimensional schematic diagram of the present application.
[0018] Figure 2 This is a schematic diagram of the connection between chain drive 1, chain drive 2, and reduction motor of this application.
[0019] Figure 3 This is a schematic diagram of the assembly of the reduction motor and sprocket of this application.
[0020] Figure 4 This is a cross-sectional schematic diagram of the present application.
[0021] Figure 5 This is a schematic diagram of the slider structure of this application.
[0022] Figure 6 For this application Figure 4 Schematic diagram of the coordination between the fixed and movable splints in the middle coil folding area.
[0023] Figure 7 This is a top view of the fixed splint and the movable splint of the present application.
[0024] Figure 8 This is a schematic diagram of the mobile splint driving structure of this application.
[0025] Figure 9 This is a three-dimensional schematic diagram of the coordination between the fixed splint and the movable splint of the present application.
[0026] In the figure: 1. Bracket; 2. Tensioning assembly; 3. Roller 1; 4. Roller 2; 5. Coil; 6. Reducer motor; 7. Chain drive 1; 8. Chain drive 2; 9. Chain drive 3; 10. Sprocket; 11. Overrunning clutch; 12. Mounting plate; 13. Double-threaded screw; 14. Slider; 15. Guide rod; 16. Socket; 17. Support rod; 18. Movable splint; 19. Fixed splint. DETAILED DESCRIPTION
[0027] The following is a combination of the appended examples of the present application Figure 1-9 , the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.
[0028] Example 1. In order to solve the problems existing in the prior art, this embodiment provides a device for preventing inertial impact of coiled materials, including a bracket 1. The bracket 1 is equipped with multiple rollers 3 and rollers 4 that are staggered and rotated up and down. The coiled material 5 is transported around rollers 3 and rollers 4 in turn. The multiple rollers 3 are connected by a chain drive 7 and opened and closed synchronously. The roller 13 at the end is connected to a reduction motor 6 fastened to the bracket 1 by a chain drive 2 8. An overrunning clutch 11 is provided between the sprocket 10 of the chain drive 2 8 and the output shaft of the reduction motor 6.
[0029] Principle details of this embodiment:
[0030] A device for preventing coiled material from inertial impact comprises a bracket 1, which is formed by welding steel pipes or splicing them together with fasteners. A plurality of rollers 1 3 and a plurality of rollers 2 4 are rotatably mounted on the bracket 1. The plurality of rollers 1 3 and the plurality of rollers 2 4 are located in the same plane range. Roller 1 3 is located above roller 2 4. Roller 1 3 is located on the symmetry line between two adjacent rollers 2 4, thereby achieving the vertical offset installation of roller 1 3 and roller 2 4. The plurality of rollers 1 3 are connected to each other via a chain drive 1 7 for synchronous opening and closing. The rollers 1 3 at the end are connected to a reduction motor 6 fastened to the bracket 1 via a chain drive 2 8. An overrunning clutch 11 is provided between the sprocket 10 of the chain drive 2 8 and the output shaft of the reduction motor 6. The overrunning clutch 11 is a one-way bearing. The reduction motor 6 comprises a motor and a reducer.
[0031] The coil 5 is wound around roller 1 3 and roller 2 4 from left to right in sequence and then wound on a winder (the winder and its matching cutting and disassembly structure are not shown in the attached figure).
[0032] In this embodiment, a tensioning assembly 2 is further provided on the bracket 1 so that the coil 5 is always kept in a tightened state, the tension on the coil 5 is better, and the coil 5 is prevented from shrinking due to being stretched.
[0033] According to the above technical solution:
[0034] During the winding process of coil 5, multiple rollers 3 begin to rotate under the drive of reduction motor 6 via chain drive 1 7 and chain drive 2 8. The production speed of coil 5 is 65 m / min. When the coiler reaches the required number of meters, it cuts the coil every 10 or 20 meters (the coiler takes up one roll at a speed of approximately 6 seconds), pausing for 2-3 seconds to wind the tape. During the cutting process, reduction motor 6 stops. When reduction motor 6 stops, multiple rollers 3 lose driving force and tend to stop synchronously with reduction motor 6. However, since the coil 5 is wrapped around the surface of the roller 3, even if the reduction motor 6 stops, the coil 5 has inertia under high-speed operation, thereby exerting a forward force on the roller 3 and causing it to deflect. This force is transmitted to the reduction motor 6 through the chain, but under the action of the overrunning clutch 11, the outer ring of the bearing continues to rotate, while the inner ring of the bearing does not move, thereby avoiding impact on the reduction motor 6, protecting the reduction motor 6 and the base of the reduction motor 6 from impact, and preventing oil leakage or damage due to long-term and frequent impacts, thereby reducing the maintenance rate and reducing maintenance costs.
[0035] In Example 2, after the reduction motor 6 stops running, although the roller 1 3 continues to rotate under the action of the overrunning clutch 11 and does not cause impact to the reduction motor 6, the coil 5 still moves forward under inertia and the coil 5 will fall and fold at the cutting end. When rewinding next time, manual sorting is required, which is very inconvenient. Therefore, in this embodiment, the bracket 1 is fastened with a mounting plate 12 at both ends of each roller 2 4 by fasteners. Figure 3 As shown, fixed clamps 19 are fastened to both sides of the mounting plate 12 at the return area after the web 5 passes around roller 2 4. A double-threaded lead screw 13 is rotatably mounted on the mounting plate 12 between the return areas of the web 5, i.e., above the axis of roller 2 4. The double-threaded lead screw 13 is driven by a drive motor fixed to the mounting plate 12 for forward and reverse rotation. The double-threaded lead screw 13 has two sections of threads with opposite rotation directions, each of which is screwed onto a slider 14 that slides axially along roller 2 4. Support rods 17 are rotatably mounted on the two end surfaces of the slider 14 facing the two fixed clamps 19. The two support rods 17 on the same side of the two sliders 14 are rotatably connected to a movable clamp 18.
[0036] According to the above technical solution:
[0037] After the reduction motor 6 stops, the driving motor starts and the double-threaded screw 13 is mobilized to rotate. The double-threaded screw 13 drives the two sliders 14 to move relative to each other, and drives the two movable splints 18 to move toward the fixed splints 19 on the corresponding side through the support rod 17, until the movable splints 18 push the coil 5 and rest on the fixed splints 19, thereby clamping the coil 5 and limiting the coil 5 so that the coil 5 no longer moves. This can further alleviate the impact of the coil 5 on the reduction motor 6 through the chain caused by the rotation of the roller 3, and can also prevent the coil 5 from continuing to fall and stack, which requires sorting before the next rewinding.
[0038] Preferably, guide rods 15 are provided between the two mounting plates 12, above and below the double-threaded lead screw 13. Guide rods 15 are aligned with the axis of the second roller 4. Slider 14 is provided with receptacles 16 that mate with guide rods 15. Once inserted into receptacles 16, the two guide rods 15 restrain slider 14, allowing it to move axially along roller 4 as the double-threaded lead screw 13 rotates.
[0039] Preferably, the plurality of double-threaded screws 13 are connected by a chain drive 3 9 and driven by the same drive motor. Driven by the same drive motor, the synchronous opening and closing of all double-threaded screws 13 can be accurately controlled, and the number of motors can be reduced, saving equipment cost and control cost.
[0040] Preferably, the fixed clamping plate 19 and the movable clamping plate 18 are both covered with rubber rings, which can increase the friction resistance to the coil 5 and improve the braking performance, and can also utilize the elastic properties of the rubber rings to avoid damage to the coil 5.
[0041] The above is only a preferred specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and application concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.
[0042] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0043] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. A device for preventing inertial impact of a coiled material (5), characterized in that: The invention comprises a bracket (1), wherein the bracket (1) is provided with a plurality of rollers (3) and rollers (4) which are staggered and rotated up and down, and the coil (5) is wound around the rollers (3) and rollers (4) in sequence, and the plurality of rollers (3) are connected via a chain drive (7) and opened and closed synchronously, and the rollers (3) at the end are connected via a chain drive (8) to a reduction motor (6) fastened to the bracket (1), and an overrunning clutch (11) is provided between a sprocket (10) of the chain drive (8) and an output shaft of the reduction motor (6).
2. The device for preventing coiled material (5) from inertial impact according to claim 1, characterized in that: The bracket (1) is provided with a mounting plate (12) fixedly mounted on both ends of each roller (4), and a fixed splint (19) is fixedly mounted on both sides of the coil (5) folding area on the mounting plate (12). A double-threaded screw (13) is rotatably mounted between the coil (5) folding areas on the mounting plate (12), and the double-threaded screw (13) is driven by a driving motor. Sliders (14) that slide along the axial direction of roller (4) are screwed on the two threads of the double-threaded screw (13). Support rods (17) are rotatably mounted on the two end faces of the slider (14) facing the two fixed splints (19), and the two support rods (17) are rotatably connected to the movable splint (18).
3. The device for preventing coiled material (5) from inertial impact according to claim 2, characterized in that: A guide rod (15) is provided between the two mounting plates (12) and located above and below the double-threaded lead screw (13), and a socket (16) that cooperates with the guide rod (15) is provided on the slider (14).
4. The device for preventing coiled material (5) from inertial impact according to claim 2, characterized in that: The plurality of double-threaded screws (13) are connected by a chain drive (9) and driven by the same drive motor.
5. The device for preventing coiled material (5) from inertial impact according to claim 2, characterized in that: The fixed splint (19) and the movable splint (18) are both sleeved with rubber rings.
6. The device for preventing coiled material (5) from inertial impact according to claim 1, characterized in that: A tensioning assembly (2) is provided on the bracket (1).