Multi-size coil unloading assisting device and using method thereof
By designing a multi-size roll unloading device, using photoelectric tube detection and controller to control the retractable roll-up pressure roller and bundling machine, the automated unloading of large and small rolls is achieved, solving the problem of low efficiency of the winding machine in the production of large and small rolls and avoiding the problem of loose roll quality.
Patent Information
- Application Number
- CN202511024940.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-24
- Publication Date
- 2025-10-28
AI Technical Summary
Existing winding machines are unable to simultaneously meet the needs of winding and unwinding large and small rolls, resulting in low production efficiency and small rolls being prone to unwinding, causing quality problems.
Design a multi-size roll unloading device that uses a phototube roll diameter detection device and controller, combined with a retractable roll-up pressure roller and a bundling machine, to achieve automated roll unloading of large and small rolls, employing different roll-up methods.
The automated unloading of large and small rolls on a single winding machine improves production efficiency and solves the quality problem of easily scattered small rolls during unloading.
Smart Images
Figure CN120841275A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of metallurgical coil unloading technology, specifically to a multi-size coil unloading device and its usage method. Background Technology
[0002] In the production of hot-rolled, cold-rolled, and silicon steel cold-rolled strip steel, the steel coils produced by the coiler at the unit's exit are classified into large coils and small coils according to their size. Because large coils are heavier and less prone to unwinding, they can be automatically unloaded via a coil trolley. However, small coils, due to their lighter weight, are extremely prone to unwinding and need to be bundled on the drum before unwinding.
[0003] However, the conventional arrangement of coiling rollers is difficult to meet the needs of both large and small coiling / uncoiling operations at the same time. Generally, the swing rollers for coiling are installed at the drum exit. When producing small coils, the rollers cannot completely press down the tail of the strip. At the same time, the small coil weight is too small, which makes it easy for the coil to break apart when the drum shrinks during uncoiling, causing quality problems and resulting in low production efficiency.
[0004] Therefore, it is necessary to design a new type of coil unloading device that can simultaneously achieve automatic coiling and unloading of large and small coils on a single coiler, thereby avoiding quality problems caused by loose coils. Summary of the Invention
[0005] The purpose of this invention is to address the shortcomings of the above-mentioned technologies by providing a multi-size unwinding device and its usage method. This device uses different unwinding methods for large and small rolls on a single winding machine, thereby improving production efficiency and solving the quality problem of easy unwinding of small rolls.
[0006] To achieve the above objectives, the multi-size unloading device designed in this invention includes a steel coil cart and a bundling machine installed on one side of the steel coil cart for bundling on the machine when the coiler produces small coils. The steel coil cart is equipped with a vertically retractable coil receiving saddle for unloading when producing large and small coils. A retractable coiling pressure roller is provided on each side of the coil receiving saddle on the steel coil cart for assisting in coiling when producing large and small coils. One of the coiling pressure rollers and the bundling machine is located on one side of the coil receiving saddle, and the other coiling pressure roller is located on the other side of the coil receiving saddle. The bundling machine can be moved above the coil receiving saddle to perform the bundling operation. When the coiling pressure roller is retracted, its height is lower than the working height of the bundling machine.
[0007] Preferably, the device includes a phototube coil diameter detection device installed on a coiler to detect the coil diameter, and a controller. The controller receives the coil diameter signal sent by the phototube coil diameter detection device through an input module, and is connected to a control valve through an output module to control the operation of the actuator. The actuator includes the coil trolley, a bundling machine, a coiling roller, and a coil receiving saddle. The actuator is equipped with position sensors that detect the position of each mechanism, and the controller is electrically connected to the position sensors.
[0008] A method for using a multi-size coil unloading device involves adjusting the position of the steel coil cart so that the coil receiving saddle is located below the steel coil. Based on the diameter of the steel coil, it is determined whether it is a large coil or a small coil. If it is a large coil, the large coil unloading mode is used; if it is a small coil, the small coil unloading mode is used.
[0009] Preferably, the multi-size unwinding device includes a phototube coil diameter detection device installed on the coiler to detect the coil diameter, and a controller. The controller receives the coil diameter signal sent by the phototube coil diameter detection device through an input module, and is connected to a control valve through an output module to control the operation of the actuator. The actuator includes the coil trolley, a bundling machine, a coil-assisted pressure roller, and a coil-receiving saddle. The actuator is equipped with position sensors that detect the position of each mechanism, and the controller is electrically connected to the position sensors. The phototube coil diameter detection device measures the diameter of the steel coil produced by the coiler and sends the coil diameter signal to the controller through the input module. The controller determines the unloading mode for large or small coils based on the coil diameter signal. If it is a large coil, the large coil unloading mode is used; if it is a small coil, the small coil unloading mode is used. The output module sends a control signal to the control valve of the actuator, which, together with the position sensor, controls the actuator to complete the unloading action.
[0010] Preferably, rolls with a diameter ≥ 1100 mm are considered large rolls, and rolls with a diameter < 1100 mm are considered small rolls.
[0011] Preferably, when performing large coil assisting operation, the baler is in standby mode, the steel coil carriage is located below the steel coil, the coil receiving saddle is in the lowest position, and the two assisting pressure rollers rise to contact the steel coil to complete the assisting coiling process.
[0012] Preferably, during the large coil unloading operation, the baler is in standby mode, the coil carriage is located below the coil, the coil receiving saddle is raised to contact the coil, and the two coiling rollers retract to their lowest positions to complete the unloading process.
[0013] Preferably, when performing small coil assisting operation, the baler is in standby mode, the steel coil carriage is located below the steel coil, the coil receiving saddle is in its lowest position, the assisting pressure rollers away from the baler are raised to contact the steel coil to complete the assisting process, and the assisting pressure rollers close to the baler are in a retracted state.
[0014] Preferably, when performing small coil bundling operations, the steel coil trolley is located below the steel coil, the coil receiving saddle is in its lowest position, the coiling rollers away from the bundling machine are raised to contact the steel coil, the coiling rollers close to the bundling machine are in a retracted state, and the bundling machine moves above the coil receiving saddle to perform the bundling operation.
[0015] Preferably, during the uncoiling operation of small coils, the baler is in standby mode, the coil carriage is located below the coil, the coil receiving saddle is raised to contact the coil, and the coiling aid roller is retracted to its lowest position to complete the uncoiling process.
[0016] Compared with the prior art, the present invention has the following advantages: 1. The unloading of large and small coils of steel coils can be carried out simultaneously on a single coiler, which improves production efficiency; 2. Solved the quality problem of small rolls easily scattering during unwinding; 3. The control device enables the automation of unloading operations for both large and small rolls. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the multi-size unwinding device of the present invention; Figure 2 A schematic diagram for assisting in the large-volume rolling process; Figure 3 A schematic diagram for unloading large coils; Figure 4 A diagram illustrating the process of assisting with the small-scale test paper preparation; Figure 5 A diagram illustrating the bundling of small rolls; Figure 6 A schematic diagram for unloading small rolls; Figure 7 This is a schematic diagram illustrating the working principle of Example 2.
[0018] The components in the diagram are labeled as follows: 1. Steel coil cart; 2. Bundling machine; 3. Coil receiving saddle; 4. Coil assist roller; 5. Steel coil; 6. Phototube coil diameter detection device; 7. Controller; 8. Input module; 9. Output module; 10. Control valve; 11. Actuator; 12. Position sensor. Detailed Implementation
[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] Example 1 like Figure 1 As shown, a multi-size uncoiling device includes a steel coil cart 1 and a baler 2 installed on one side of the steel coil cart 1. The steel coil cart 1 is equipped with a vertically retractable coil receiving saddle 3. A retractable coiling pressure roller 4 is provided on each side of the coil receiving saddle 3 on the steel coil cart 1. One coiling pressure roller 4 and the baler 2 are located on one side of the coil receiving saddle 3, and the other coiling pressure roller 4 is located on the other side of the coil receiving saddle 3. The baler 2 can move to the top of the coil receiving saddle 3 to perform baling operations. When the coiling pressure roller 4 is retracted, its height is lower than the working height of the baler 2.
[0021] In this embodiment, the position of the steel coil carriage 1 is adjusted so that the coil receiving saddle 3 is located below the steel coil 5. Based on the diameter of the steel coil 5, it is determined whether it is a large coil or a small coil. If it is a large coil, the large coil unloading mode is adopted; if it is a small coil, the small coil unloading mode is adopted.
[0022] In this embodiment, rolls with a diameter ≥ 1100 mm are considered large rolls, and rolls with a diameter < 1100 mm are considered small rolls.
[0023] When performing the specific tasks, please follow these steps: like Figure 2 As shown, when performing large coil assist operation, the baler 2 is in standby mode, the steel coil carriage 1 is located below the steel coil 5, the coil receiving saddle 3 is in the lowest position, and the two assist pressure rollers 4 are raised to contact the steel coil 5 to complete the assist process.
[0024] like Figure 3 As shown, during the large coil unloading operation, the baler 2 is in standby mode, the coil carriage 1 is located below the coil 5, the coil receiving saddle 3 rises to contact the coil 5, and the two auxiliary coiling pressure rollers 4 retract to the lowest position to complete the unloading process.
[0025] like Figure 4 As shown, when performing small coil assisting operation, the baler 2 is in standby mode, the steel coil carriage 1 is located below the steel coil 5, the coil receiving saddle 3 is in the lowest position, the assisting pressure roller 4 away from the baler 2 is raised to contact the steel coil 5 to complete the assisting process, and the assisting pressure roller 4 close to the baler 2 is in a retracted state.
[0026] like Figure 5As shown, when performing small coil bundling operations, the steel coil trolley 1 is located below the steel coil 5, the coil receiving saddle 3 is in its lowest position, the auxiliary coil pressure roller 4, which is away from the bundling machine 2, rises to contact the steel coil 5, and the auxiliary coil pressure roller 4, which is close to the bundling machine 2, is in a retracted state. The bundling machine 2 moves to the top of the coil receiving saddle 3 to perform the bundling operation.
[0027] like Figure 6 As shown, when performing small coil unloading operation, the baler 2 is in standby mode, the steel coil carriage 1 is located below the steel coil 5, the coil receiving saddle 3 rises to contact the steel coil 5, and the coiling aid roller 4 retracts to the lowest position to complete the unloading process.
[0028] Example 2 like Figure 1 As shown, a multi-size uncoiling device includes a steel coil cart 1 and a baler 2 installed on one side of the steel coil cart 1. The steel coil cart 1 is equipped with a vertically retractable coil receiving saddle 3. A retractable coiling pressure roller 4 is provided on each side of the coil receiving saddle 3 on the steel coil cart 1. One coiling pressure roller 4 and the baler 2 are located on one side of the coil receiving saddle 3, and the other coiling pressure roller 4 is located on the other side of the coil receiving saddle 3. The baler 2 can move to the top of the coil receiving saddle 3 to perform baling operations. When the coiling pressure roller 4 is retracted, its height is lower than the working height of the baler 2.
[0029] Combination Figure 7 As shown, it also includes a phototube diameter detection device 6 installed on the coiler to detect the diameter of the steel coil 5, and a controller 7. The controller 7 receives the diameter signal sent by the phototube diameter detection device 6 through the input module 8, and is connected to the control valve 10 through the output module 9 to control the operation of the actuator 11. The actuator 11 includes a steel coil carriage 1, a bundling machine 2, a coiling aid roller 4, and a coil receiving saddle 3. The actuator 11 is equipped with a position sensor 12 to detect the position of each mechanism, and the controller 7 is electrically connected to the position sensor 12.
[0030] In this embodiment, the position of the steel coil carriage 1 is adjusted so that the coil receiving saddle 3 is located below the steel coil 5. The phototube coil diameter detection device measures the coil diameter produced by the coiler and sends the coil diameter signal to the controller 7 through the input module 8. The controller 7 determines the unloading mode for large and small coils based on the coil diameter signal. If it is a large coil, the large coil unloading mode is used; if it is a small coil, the small coil unloading mode is used. The output module 9 sends a control signal to the control valve 10 of the actuator 11, which, together with the position sensor 12, controls the actuator 11 to complete the unloading action.
[0031] In this embodiment, rolls with a diameter ≥ 1100 mm are considered large rolls, and rolls with a diameter < 1100 mm are considered small rolls.
[0032] When performing the specific tasks, please follow these steps: like Figure 2As shown, when performing large coil assist operation, the baler 2 is in standby mode, the steel coil carriage 1 is located below the steel coil 5, the coil receiving saddle 3 is in the lowest position, and the two assist pressure rollers 4 are raised to contact the steel coil 5 to complete the assist process.
[0033] like Figure 3 As shown, during the large coil unloading operation, the baler 2 is in standby mode, the coil carriage 1 is located below the coil 5, the coil receiving saddle 3 rises to contact the coil 5, and the two auxiliary coiling pressure rollers 4 retract to the lowest position to complete the unloading process.
[0034] like Figure 4 As shown, when performing small coil assisting operation, the baler 2 is in standby mode, the steel coil carriage 1 is located below the steel coil 5, the coil receiving saddle 3 is in the lowest position, the assisting pressure roller 4 away from the baler 2 is raised to contact the steel coil 5 to complete the assisting process, and the assisting pressure roller 4 close to the baler 2 is in a retracted state.
[0035] like Figure 5 As shown, when performing small coil bundling operations, the steel coil trolley 1 is located below the steel coil 5, the coil receiving saddle 3 is in its lowest position, the auxiliary coil pressure roller 4, which is away from the bundling machine 2, rises to contact the steel coil 5, and the auxiliary coil pressure roller 4, which is close to the bundling machine 2, is in a retracted state. The bundling machine 2 moves to the top of the coil receiving saddle 3 to perform the bundling operation.
[0036] like Figure 6 As shown, when performing small coil unloading operation, the baler 2 is in standby mode, the steel coil carriage 1 is located below the steel coil 5, the coil receiving saddle 3 rises to contact the steel coil 5, and the coiling aid roller 4 retracts to the lowest position to complete the unloading process.
[0037] This invention relates to a multi-size assisted unloading device and its usage method, which simultaneously enables the assisted unloading of large and small coils of steel coils on a single coiler, thereby improving production efficiency; it solves the quality problem of easy disintegration during the unloading of small coils; and through a control device, it achieves automation of the assisted unloading operations for both large and small coils.
[0038] It should be noted that the above description of the technical solutions is exemplary, and this specification may be embodied in different forms and should not be construed as limiting it to the technical solutions set forth herein. Rather, providing these descriptions will ensure that the disclosure of this invention is thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Furthermore, the technical solutions of this invention are defined only by the scope of the claims.
[0039] The shapes, dimensions, ratios, angles, and figures disclosed in the description of various aspects of this specification and claims are merely examples, and therefore, this specification and claims are not limited to the details shown. In the following description, detailed descriptions of relevant known functions or configurations will be omitted where it would be determined that they unnecessarily obscure the focus of this specification and claims.
[0040] Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and many variations are possible. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention should be considered within the protection scope of the present invention.
Claims
1. A multi-size unloading device, comprising a steel coil trolley (1), characterized in that: It also includes a baler (2) installed on one side of the coil car (1). The coil car (1) is equipped with a retractable coil receiving saddle (3). The coil car (1) has a retractable coiling roller (4) on each side of the coil receiving saddle (3). One of the coiling rollers (4) and the baler (2) are located on one side of the coil receiving saddle (3), and the other coiling roller (4) is located on the other side of the coil receiving saddle (3). The baler (2) can be moved to the top of the coil receiving saddle (3) to perform the baling operation. When the coiling roller (4) is retracted, its height is lower than the working height of the baler (2).
2. The multi-size unwinding device as described in claim 1, characterized in that: The device includes a phototube diameter detection device (6) installed on the coiler to detect the diameter of the steel coil (5), and a controller (7). The controller (7) receives the diameter signal sent by the phototube diameter detection device (6) through the input module (8), and is connected to a control valve (10) through the output module (9) to control the operation of the actuator (11). The actuator (11) includes the steel coil car (1), the bundling machine (2), the coiling roller (4), and the coil receiving saddle (3). The actuator (11) is equipped with a position sensor (12) to detect the position of each mechanism. The controller (7) is electrically connected to the position sensor (12).
3. A method of using the multi-size unwinding device as described in claim 1, characterized in that: Adjust the position of the steel coil car (1) so that the coil receiving saddle (3) is located below the steel coil (5). Determine whether the steel coil (5) is a large coil or a small coil based on its diameter. If it is a large coil, use the large coil unloading mode; if it is a small coil, use the small coil unloading mode.
4. The method of using the multi-size unwinding device as described in claim 3, characterized in that: The multi-size unwinding device includes a phototube coil diameter detection device (6) installed on the coiler to detect the coil diameter of the steel coil (5), and a controller (7). The controller (7) receives the coil diameter signal sent by the phototube coil diameter detection device (6) through the input module (8), and is connected to a control valve (10) through the output module (9) to control the operation of the actuator (11). The actuator (11) includes the steel coil car (1), the bundling machine (2), the coiling pressure roller (4), and the coil receiving saddle (3). The actuator (11) is equipped with a position sensor (12) to detect the position of each mechanism. The controller (7) is electrically connected to the position sensor (12). The phototube roll diameter detection device measures the roll diameter of the steel roll produced by the coiler and sends the roll diameter signal to the controller (7) through the input module (8). The controller (7) determines the roll unloading mode for large and small rolls based on the roll diameter signal. If it is a large roll, the large roll unloading mode is adopted; if it is a small roll, the small roll unloading mode is adopted. The output module (9) sends an auxiliary control signal to the control valve (10) of the actuator (11) and, together with the position sensor (12), controls the actuator (11) to complete the roll unloading action.
5. The method of using the multi-size unwinding device as described in claim 3 or 4, characterized in that: Rolls with a diameter of ≥1100mm are considered large rolls, while those with a diameter of <1100mm are considered small rolls.
6. The method of using the multi-size unwinding device as described in claim 3 or 4, characterized in that: When performing large coil winding operation, the bundling machine (2) is in standby mode, the steel coil car (1) is located below the steel coil (5), the coil receiving saddle (3) is in the lowest position, and the two winding rollers (4) are raised to contact the steel coil (5) to complete the winding process.
7. The method of using the multi-size unwinding device as described in claim 3 or 4, characterized in that: When performing large coil unloading operations, the bundling machine (2) is in standby mode, the steel coil car (1) is located below the steel coil (5), the coil receiving saddle (3) is raised to contact the steel coil (5), and the two auxiliary coil pressure rollers (4) are retracted to the lowest position to complete the unloading process.
8. The method of using the multi-size unwinding device as described in claim 3 or 4, characterized in that: When performing small coil assisting operation, the baler (2) is in standby mode, the steel coil car (1) is located below the steel coil (5), the coil receiving saddle (3) is in the lowest position, the assisting pressure roller (4) away from the baler (2) is raised to contact the steel coil (5) to complete the assisting process, and the assisting pressure roller (4) close to the baler (2) is in a retracted state.
9. The method of using the multi-size unwinding device as described in claim 3 or 4, characterized in that: When performing small coil bundling operations, the steel coil cart (1) is located below the steel coil (5), the coil receiving saddle (3) is at its lowest position, the coiling roller (4) away from the bundling machine (2) is raised to contact the steel coil (5), the coiling roller (4) close to the bundling machine (2) is in a retracted state, and the bundling machine (2) moves to the top of the coil receiving saddle (3) to perform bundling operations.
10. The method of using the multi-size unwinding device as described in claim 3 or 4, characterized in that: When performing small coil unloading operation, the bundling machine (2) is in standby mode, the steel coil car (1) is located below the steel coil (5), the coil receiving saddle (3) is raised to contact the steel coil (5), and the coiling roller (4) is retracted to the lowest position to complete the unloading process.