Device for assisting in measuring twisting and rewinding of cord thread

Abstract

The utility model belongs to the technical field of steel cord testing, and particularly relates to an auxiliary cord twisting and rewinding testing device which comprises a table top, a plurality of discs arranged on the table top, a pivotal bearing arranged on each disc, and an electromagnetic clutch fixedly connected with the discs arranged on the inner ring of each pivotal bearing. Switch buttons in one-to-one correspondence with the electromagnetic clutches are arranged on the table top; inner rings of the pivotal bearings are connected with electromagnetic clutches, rotating shafts in one-to-one butt joint with the electromagnetic clutches are arranged at the bottom of the table top in a penetrating mode, a driving mechanism for driving all the rotating shafts to rotate is arranged on the table top, and braking mechanisms and proximity sensors in one-to-one correspondence with the pivotal bearings are arranged on the table top. The inner ring of each pivotal bearing is provided with protruding blocks corresponding to the proximity sensors in a one-to-one mode. According to the invention, the automation and precision of steel cord testing are realized, the testing efficiency and accuracy are obviously improved, the operation process is simplified, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel cord testing, in particular to an auxiliary testing cord torsion rewinding device. Background Art

[0002] In the steel wire products industry, steel cord, a key reinforcement material, is widely used in rubber products such as tires and conveyor belts. Its performance is directly related to product quality and safety. Residual torsion in steel cord is a key performance indicator, crucial for ensuring product performance and lifespan. Residual torsion testing is an integral part of steel cord quality control, and its accuracy directly impacts the final product quality assessment.

[0003] Traditional steel cord residual torsion testing methods require manual pulling of a certain length of cord (typically 6 meters) from a wheel for measurement. This process is subject to uncontrollable factors, such as uneven tension and inaccurate pullout length, which can affect test results, making accuracy difficult to guarantee. After the test is complete, the remaining cord (typically over 5 meters after trimming the head) needs to be rewound onto the wheel for subsequent storage and use. This step, also relying on manual labor, is not only inefficient but also prone to damage or uneven rewinding due to improper operation.

[0004] To address these issues, the market urgently needs a device that can automatically perform residual torsion testing on steel cords. This device needs to accurately and stably pull out the required length of cord to ensure test accuracy. Furthermore, after the test is complete, it needs to automatically rewind the remaining cord onto a wheel to improve work efficiency and reduce the risk of cord damage.

[0005] In summary, designing a device that can automatically perform residual torsion testing of steel cords, automatically rewind the remaining cords, and can be used in conjunction with existing automation equipment is of great significance for improving the quality and efficiency of steel cord production. Summary of the Invention

[0006] In view of the above-mentioned deficiencies in the prior art, the present invention provides an auxiliary cord twisting and rewinding device to solve the above-mentioned problems.

[0007] The auxiliary cord twisting and winding device of the present invention includes a table top, a plurality of discs are provided on the table top, each of the discs is provided with a slewing bearing, the inner ring of the slewing bearing is provided with an electromagnetic clutch fixedly connected to the disc, and the table top is provided with a switch button corresponding to the electromagnetic clutch one by one; a top cover is provided on the top of the inner ring of the slewing bearing, and a plug-in plate docking with the electromagnetic clutch is provided at the bottom of the top cover, a rotating shaft docking with the electromagnetic clutch one by one is passed through the bottom of the table top, a driving mechanism is provided on the table top, and the output shaft of the driving mechanism and the end of the rotating shaft are provided with synchronous wheels, and a synchronous belt is provided between all the synchronous wheels. A braking mechanism and a proximity sensor corresponding to the slewing bearing are provided on the table top, and the inner ring of each slewing bearing is provided with a protrusion corresponding to the proximity sensor one by one.

[0008] Furthermore, the braking mechanism includes a cylinder frame fixed on the table, a cylinder is provided on the cylinder frame, a piston rod of the cylinder faces the slewing bearing and is provided with a brake plate, and a rubber brake block is provided on the brake plate.

[0009] Furthermore, the outer end surface of the rubber brake block is an arc-shaped surface, and the arc of the arc-shaped surface is the same as the outer diameter of the inner ring of the slewing bearing.

[0010] Furthermore, the brake plate is provided with guide shafts respectively located on both sides of the piston rod, the cylinder frame is provided with protruding ends corresponding to the guide shafts one by one, and the protruding ends are provided with shaft sleeves corresponding to the guide shafts.

[0011] Furthermore, a wire rack is provided on the top of the desktop.

[0012] Furthermore, a plurality of drawers are provided on one side of the bottom of the desktop, and the drawers are provided on the side adjacent to the switch button.

[0013] Furthermore, a tensioning smooth wheel that cooperates with the synchronous belt is provided at the bottom of the table top.

[0014] Furthermore, the driving mechanism includes a motor and a reducer, a bracket is set between the motor and the desktop, the motor is drivingly connected to the reducer, and the output shaft of the reducer is provided with a synchronous wheel.

[0015] Compared with the existing technology, the auxiliary cord twisting and winding device provided by this patent realizes the automation and precision of steel cord testing by integrating electromagnetic clutch, synchronous belt drive, proximity sensor and braking mechanism, significantly improving the testing efficiency and accuracy. At the same time, it simplifies the operation process and reduces labor intensity, bringing significant technological innovation and efficiency improvement to the field of steel cord production and quality inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3 for Figure 2 Enlarged view of detail A;

[0019] Figure 4 It is a rear view of the utility model;

[0020] Figure 5 It is a partial front view cross-sectional view of the utility model.

[0021] In the figure: 1. Tabletop; 2. Disc; 3. Rotary bearing; 4. Electromagnetic clutch; 5. Switch button; 6. Top cover; 7. Plug board; 8. Rotating shaft; 9. Synchronous pulley; 10. Synchronous belt; 11. Proximity sensor; 12. Bump; 13. Braking mechanism; 14. Cylinder frame; 15. Cylinder; 16. Brake plate; 17. Rubber brake block; 18. Guide shaft; 19. Bushing; 20. Wire embedding rack; 21. Drawer; 22. Tensioning smooth pulley; 23. Motor; 24. Reducer; 25. First ring; 26. Second ring. DETAILED DESCRIPTION

[0022] In order to better understand the present invention, Figures 1 to 5 The embodiments of the present invention will be explained in detail.

[0023] It should be noted that the directions “front, back, left, right, up, down” mentioned in the text are all based on Figure 1 The directions of “front, back, left, right, up and down” are used as the reference.

[0024] The present invention's auxiliary cord twist and rewind device comprises a tabletop 1, with multiple discs 2 evenly distributed on it. Each disc 2 is mounted with a slewing bearing 3, which supports and allows the free rotation of a steel cord reel (wheel). The inner ring of the slewing bearing 3 is fixedly connected to the discs 2 via an electromagnetic clutch 4. The electromagnetic clutch 4 is activated and deactivated by a switch button 5 mounted on the tabletop 1, thereby locking and releasing the slewing bearing 3.

[0025] A top cover 6 is installed on the top of the inner ring of the slewing bearing 3. The bottom of the top cover 6 is equipped with a plug-in plate 7 for docking with the electromagnetic clutch 4 to ensure a secure connection. The bottom of the tabletop 1 is penetrated by rotating shafts 8 corresponding to the electromagnetic clutches 4. These rotating shafts 8 are connected to the output shaft of the drive mechanism via a synchronous belt 10, forming a synchronous transmission system. The drive mechanism consists of a motor 23 and a reducer 24. The motor 23 is fixed to the tabletop 1 via a bracket and is connected to the reducer 24. The output shaft of the reducer 24 is equipped with a synchronous pulley 9, which drives all the rotating shafts 8 to rotate synchronously via a synchronous belt 10. However, it is worth noting that when the switch button 5 is pressed, only the corresponding electromagnetic clutch 4 is locked, causing the corresponding slewing bearing 3 to rotate. When the switch button 5 is not pressed, the electromagnetic clutch 4 of the remaining rotating shafts 8 is unlocked, causing the rotating shafts 8 to idle and the corresponding slewing bearing 3 to not rotate. This design ensures that the rotation of a specific reel can be controlled individually when needed.

[0026] To ensure the stability of the steel cord during testing and accurate rewinding afterward, a braking mechanism 13 and proximity sensor 11 are installed on the tabletop 1, each corresponding to the slewing bearing 3. The braking mechanism 13 comprises a cylinder frame 14 fixed to the tabletop 1. A cylinder 15 is mounted on the cylinder frame 14, with its piston rod facing the slewing bearing 3. A rubber brake block 17 is installed. The outer end surface of the rubber brake block 17 is designed to have the same arc as the outer diameter of the inner ring of the slewing bearing 3 to ensure a tight fit during braking. A guide shaft 18 is also installed on the brake plate 16 to provide stable guidance for the cylinder 15 during operation. A sleeve 19 corresponding to the guide shaft 18 is installed on the cylinder frame 14. The proximity sensor 11 is used to detect the rotational state of the slewing bearing 3. Each inner ring of the slewing bearing 3 is equipped with a bump 12 corresponding to a proximity sensor 11. As the slewing bearing 3 rotates, the proximity sensor 11 detects the number of times the bump 12 is touched, which in turn determines the number of revolutions and thus the number of meters of cord pulled out. After the set number of revolutions is reached, the electromagnetic clutch 4 brakes the turntable, stopping rotation until the set number of meters is reached. This design ensures that the desired length of steel cord is accurately pulled out during testing.

[0027] In addition, a wire guide 20 is installed on the top of the tabletop 1 to guide the steel cord during testing and prevent it from becoming tangled or knotted. Several drawers 21 are located on one side of the bottom of the tabletop 1 to store tools and spare parts used during testing. Drawers 21 are located near the switch button 5 for easy access by the operator. Furthermore, to maintain the tension of the synchronous belt 10, an adjustment mechanism is installed on the bottom of the tabletop 1 that cooperates with the tensioning smooth pulley 22 to ensure the stability and reliability of the synchronous transmission.

[0028] In order to protect the end face of the slewing bearing 3, a first ring 25 located above the top cover 6 is provided on the inner ring end of the slewing bearing 3, and a second ring 26 is provided on the outer ring end of the slewing bearing 3. The first ring 25 and the second ring 26 are both connected to the slewing bearing 3 by bolts.

[0029] The usage and principle of this utility model:

[0030] 1. Test Preparation: First, place the steel cord reel to be tested on the corresponding disc 2 and activate the electromagnetic clutch 4 to securely connect the reel to the slewing bearing 3. Then, activate the drive mechanism using the switch button 5, rotating the slewing bearing 3 corresponding to the reel to be tested until the desired length of steel cord is reached. At this point, the proximity sensor 11 detects the number of times the bump 12 is touched, and calculates the number of revolutions, thereby measuring the number of meters of cord pulled out. When the set number of meters is reached, the electromagnetic clutch 4 brakes the disc, stopping rotation.

[0031] 2. Test: During the test, the operator can guide the steel cord through the wire embedding frame 20 to test the residual torsion. After the test is completed, the driving mechanism is turned off and the braking mechanism 13 is activated to stop all the reels from rotating.

[0032] 3. Rewinding: After the test, cut the end of the steel cord as needed, then restart the drive mechanism, but this time rotate it in the opposite direction. Simultaneously, press the corresponding switch button 5 to lock the electromagnetic clutch 4 corresponding to the reel to be rewound. The slewing bearing 3 begins to rotate, and the steel cord is automatically rewound onto the reel. During the rewinding process, the operator can select the left or right winding of the spool as needed, that is, set the turntable to the left or right, to achieve the purpose of automatic rewinding.

[0033] 4. Arrangement and storage: After the rewind is completed, close the electromagnetic clutch 4, remove the reel from the disc 2, and put it into the designated storage location. At the same time, clean the residue on the device and check whether all parts are intact for the next use.

[0034] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication between two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Auxiliary cord twisting and rewinding device, characterized by: The invention comprises a table top (1), wherein a plurality of disks (2) are arranged on the table top (1), each of the disks (2) is provided with a rotary bearing (3), the inner ring of the rotary bearing (3) is provided with an electromagnetic clutch (4) fixedly connected to the disk (2), and the table top (1) is provided with a switch button (5) corresponding to the electromagnetic clutch (4); a top cover (6) is provided on the top of the inner ring of the rotary bearing (3), and a plug-in board (7) connected to the electromagnetic clutch (4) is provided on the bottom of the top cover (6). A rotating shaft (8) that is connected to the electromagnetic clutch (4) is passed through the bottom of the table (1). A driving mechanism is provided on the table (1). Synchronous wheels (9) are provided at the output shaft of the driving mechanism and the end of the rotating shaft (8). A synchronous belt (10) is provided between all the synchronous wheels (9). A braking mechanism (13) and a proximity sensor (11) that correspond to the slewing bearings (3) are provided on the table (1). The inner ring of each slewing bearing (3) is provided with a convex block (12) that corresponds to the proximity sensor (11).

2. The auxiliary cord twisting and winding device as claimed in claim 1, characterized in that: The braking mechanism (13) comprises a cylinder frame (14) fixed on the tabletop (1), a cylinder (15) is provided on the cylinder frame (14), a piston rod of the cylinder (15) faces the slewing bearing (3) and is provided with a braking plate (16), and a rubber braking block (17) is provided on the braking plate (16).

3. The auxiliary cord twisting and winding device as claimed in claim 2, characterized in that: The outer end surface of the rubber brake block (17) is an arc-shaped surface, and the arc of the arc-shaped surface is the same as the outer diameter of the inner ring of the slewing bearing (3).

4. The auxiliary cord twisting and rewinding device as claimed in claim 2, characterized in that: The brake plate (16) is provided with guide shafts (18) respectively located on both sides of the piston rod, and the cylinder frame (14) is provided with protruding ends corresponding to the guide shafts (18) one by one, and the protruding ends are provided with shaft sleeves (19) corresponding to the guide shafts (18).

5. The auxiliary cord twisting and winding device as claimed in claim 1, characterized in that: A wire embedding rack (20) is provided on the top of the table top (1).

6. The auxiliary cord twisting and rewinding device according to claim 1, characterized in that: A plurality of drawers (21) are provided on one side of the bottom of the desktop (1), and the drawers (21) are provided on the adjacent side of the switch button (5).

7. The auxiliary cord twisting and rewinding device as claimed in claim 1, characterized in that: The bottom of the table top (1) is provided with a tensioning smooth wheel (22) that matches the synchronous belt (10).

8. The auxiliary cord twisting and rewinding device as claimed in claim 1, characterized in that: The driving mechanism comprises a motor (23) and a reducer (24); a bracket is provided between the motor (23) and the desktop (1) for fixation; the motor (23) and the reducer (24) are drivingly connected; and an output shaft of the reducer (24) is provided with a synchronous wheel (9).

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