Twist lock dismounting equipment and use method

Abstract

The invention belongs to the technical field of twist lock dismounting, and particularly relates to twist lock dismounting equipment and a using method, and the twist lock dismounting equipment comprises a clamping mechanism suitable for clamping a twist lock; the unlocking mechanism is suitable for rotating a spring bolt of the twist lock to complete separation of the twist lock and the corner fitting; the transplanting mechanism is suitable for placing the twist lock in a designated area; the detection unit is configured to detect the unlocking state of the unlocking mechanism; the control module is configured to receive a detection result of the detection unit, compare the detection result with a preset value, control the unlocking mechanism to complete unlocking of the twist lock, judge the use state of the twist lock and then control the transplanting mechanism to place the unlocked twist lock in a designated area; in short, the unlocking state of the twist lock is detected through the detection unit and then transmitted to the control module, the detection result is compared with a preset value through the control module, and the twist lock is screened.

Description

Technical Field

[0001] The present invention belongs to the technical field of twist lock disassembly, and in particular relates to a twist lock disassembly device and a use method thereof. Background Art

[0002] A container twist lock is a device used to fix and connect containers. It is widely used in sea, land and rail transportation. Its main function is to achieve a stable connection between containers by matching the corner holes of the container with the twist lock, thereby ensuring that they will not move or tip over during transportation. However, in actual use, the twist lock is exposed to the environment and is prone to rust. At the same time, the shaking of the container during transportation can easily cause the lock tongue of the twist lock to deform, making it difficult to unlock the twist lock, and the existing automatic unlocking equipment cannot automatically screen out faulty twist locks.

[0003] Therefore, how to prevent the fixed twist locks from being unable to be automatically screened out is a technical problem that urgently needs to be solved in this field.

[0004] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the invention

[0005] The embodiments of the present disclosure at least provide a twist lock disassembly device and a method of use.

[0006] In the first aspect, an embodiment of the present disclosure provides a twist-lock disassembly device, comprising: a clamping mechanism, which is suitable for clamping the twist-lock; an unlocking mechanism, which is suitable for rotating the lock tongue of the twist-lock to complete the separation of the twist-lock and the corner piece; a transplanting mechanism, which is suitable for placing the twist-lock in a designated area; a detection unit, which is configured to detect the unlocking state of the unlocking mechanism; a control module, which is configured to receive the detection result of the detection unit and compare it with a preset value, control the unlocking mechanism to complete the unlocking of the twist-lock, and then control the transplanting mechanism to place the unlocked twist-lock in a designated area after determining the usage state of the twist-lock.

[0007] In an optional embodiment, the unlocking mechanism includes an unlocking motor and an unlocking claw, the unlocking claw is connected to the output shaft of the unlocking motor, and the unlocking claw is suitable for rotating the lock tongue of the twist lock to unlock; the detection unit includes an angle sensor and a current sensor; the angle sensor is connected to the rotating shaft of the unlocking motor, and is configured to detect the rotation angle of the output shaft of the unlocking motor; the current sensor is electrically connected to the unlocking motor, and is configured to detect the current change of the unlocking motor when driving the unlocking claw; the preset value includes the current peak value and the full unlocking angle; the control module is configured to receive the current change and compare it with the current peak value, and receive the unlocking The rotation angle of the output shaft of the motor is compared with the full unlocking angle; the designated area includes a high-quality product area and a marked product area, wherein; when the received rotation angle is equal to the full unlocking angle and the peak value of the current change is always lower than the current peak value, the twist lock is determined to be a high-quality product, and the control module controls the transplanting mechanism to place the twist lock in the high-quality product area; when the received rotation angle is equal to the full unlocking angle but the peak value of the current change exceeds the current peak value, the control module controls the unlocking mechanism to repeatedly unlock the twist lock, and when the peak value of the current change is lower than the current peak value at least twice, the twist lock is determined to be a marked product, and the control module controls the transplanting mechanism to place the twist lock in the marked product area.

[0008] In an optional embodiment, the twist-lock disassembly device further includes an alarm module; when the control module receives a signal that the rotation angle is not equal to the full unlocking angle, the control module controls the unlocking mechanism to stop working and controls the alarm module to sound an alarm.

[0009] In an optional embodiment, when a rotation angle equal to the full unlocking angle is received but the peak value of the current change exceeds the current peak value; the number of repeated unlocking of the unlocking module is recorded as N, and the number of times the peak value of the current change exceeds the current peak value is recorded as M, then the score of the usage status of the twist lock is P, P=M / N; the marked product area includes an area to be repaired and an area to be replaced, wherein; when P is not greater than 0.4, the twist lock is placed in the area to be repaired, otherwise, the twist lock is placed in the area to be replaced.

[0010] In an optional embodiment, the unlocking state includes a degree of unlocking completion, and the preset value includes a fully unlocking angle; the unlocking mechanism includes an unlocking motor and an unlocking claw, and the unlocking claw is connected to the output shaft of the unlocking motor, and the unlocking claw is suitable for rotating the lock tongue of the twist lock to unlock; the detection unit includes an angle sensor, and the angle sensor is configured to detect the rotation angle of the output shaft of the unlocking motor; the control module is configured to receive the rotation angle of the output shaft and compare it with the fully unlocking angle; when the rotation angle is equal to the fully unlocking angle, it is determined that the twist lock is unlocked, and the transplanting mechanism places the twist lock in a designated area.

[0011] In an optional embodiment, the unlocking state includes the difficulty of unlocking, and the preset value includes the current peak value; the unlocking mechanism includes an unlocking motor and an unlocking claw, the unlocking claw is connected to the output shaft of the unlocking motor, and the unlocking claw is suitable for rotating the lock tongue of the twist lock to unlock; the detection unit includes a current sensor, which is electrically connected to the unlocking motor, and the current sensor is configured to detect the current change of the unlocking motor when driving the unlocking claw; the control module is configured to receive the current change and compare the current change with the current peak value; when the peak value of the current change is always lower than the current peak value, the twist lock is determined to be a high-quality product, and the transplanting mechanism is controlled to place the twist lock in the high-quality product area.

[0012] In a second aspect, the present disclosure also provides a method for using a twist lock removal device, comprising: Step S1, the clamping mechanism clamps the twist lock; Step S2, the unlocking mechanism rotates the lock tongue of the twist lock, the detection unit detects the unlocking state of the unlocking mechanism, and the control module receives the unlocking state and compares it with the preset value to determine the use state of the twist lock; Step S3, the control module controls the transplanting mechanism to place the twist lock in a designated area.

[0013] In an optional embodiment, the unlocking mechanism in step S2 includes an unlocking motor; The detection unit includes an angle sensor and a current sensor, wherein the angle sensor is configured to detect the rotation angle of the output shaft of the unlocking motor, and the current sensor is configured to detect the current change of the unlocking motor when it is working; The designated area includes a high-quality product area and a marked product area, and the preset value includes a current peak value and a fully unlocked angle, wherein; When receiving a rotation angle equal to the fully unlocked angle and the peak value of the current change is always lower than the current peak value, the twist lock is determined to be a good product, and the control module controls the transplanting mechanism to place the twist lock in the good product area; When receiving a rotation angle equal to the full unlocking angle but the peak value of the current change exceeds the current peak value, the control module controls the unlocking mechanism to repeatedly unlock the twist lock. When the peak value of the current change is lower than the current peak value at least twice, the twist lock is determined to be a marked product, and the control module controls the transplanting mechanism to place the twist lock in the marked product area.

[0014] In an optional implementation, when the control module receives a signal that the rotation angle is not equal to the full unlocking angle, the control module controls the unlocking mechanism to stop working, and controls the alarm module to sound an alarm.

[0015] The beneficial effect of the present invention is that the twist lock disassembly device and use method detect the unlocking state of the twist lock through the detection unit and transmit it to the control module, and the control module compares the detection result with the preset value to screen the twist lock.

[0016] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, this article specifically cites preferred embodiments and provides detailed descriptions as follows in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A three-dimensional diagram of a twist lock removal device provided by an embodiment of the present disclosure; Figure 2 A three-dimensional diagram of a twist lock removal device provided by an embodiment of the present disclosure; Figure 3 A principle block diagram of a method for using a twist lock disassembly device provided in an embodiment of the present disclosure; Figure 4 A flow chart of a method for using a twist lock disassembly device provided in an embodiment of the present disclosure; Figure 5 A flow chart of a method for using a twist-lock disassembly device provided in an embodiment of the present disclosure.

[0020] In the figure: 1. Clamping mechanism; 2. Unlocking mechanism; 21. Unlocking motor; 22. Unlocking claw; 3. Transplanting mechanism; 4. Detection unit; 5. Control module; 6. Alarm module. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In this article, when it is mentioned that the first component is located on the second component, this may mean that the first component may be directly formed on the second component, or the third component may be interposed between the first component and the second component. In addition, in the drawings, in order to effectively describe the technical content, the thickness of the component may be exaggerated or reduced.

[0023] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limited. As used herein, the singular articles "one", "an" and "the" may also be intended to include plural forms, unless it is clearly indicated above that this is not the case. The terms "comprise", "include" and "have" are inclusive, and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the specific order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0024] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Therefore, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, so that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. On the contrary, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0025] Through research, it is found that in the prior art, twist locks need to be repaired or replaced due to rust or deformation, and the existing automatic unlocking equipment is unable to screen out defective twist locks, which is the problem and purpose to be solved by the invention.

[0026] Based on the above research, an embodiment of the present disclosure provides a twist lock disassembly device and a method of use, wherein the unlocking state of the twist lock is detected by a detection unit and transmitted to a control module, which compares the unlocking state with a preset value and performs powder screening on the twist lock.

[0027] The defects existing in the above solutions are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present invention in this article for the above problems should be the contributions made by the inventor to the present invention during the disclosure process.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0030] See also Figures 1 to 5 , shows a twist lock disassembly device, including: a control module 5, and its input end is electrically connected to the detection unit 4, and the corresponding output ends of the control module 5 are respectively electrically connected to the clamping mechanism 1, the unlocking mechanism 2 and the transplanting mechanism 3 to play a corresponding control role.

[0031] Specifically, in this embodiment, the clamping mechanism 1 is suitable for clamping the twist lock; the unlocking mechanism 2 is suitable for rotating the lock tongue of the twist lock to complete the separation of the twist lock and the corner piece; the transplanting mechanism 3 is suitable for placing the twist lock in a designated area.

[0032] The detection unit 4 is configured to respectively detect the unlocking state of the unlocking mechanism 2, and may specifically include but is not limited to an angle sensor and a current sensor.

[0033] The control module 5 can be implemented by a PLC module or an industrial computer, and is specifically configured to receive the detection result of the detection unit 4 and compare it with a preset value, control the unlocking mechanism 2 to complete the unlocking of the twist lock, and then control the transplanting mechanism 3 to place the unlocked twist lock in a designated area after determining the usage status of the twist lock.

[0034] In short, the unlocking state of the twist lock is detected by the detection unit 4 and then transmitted to the control module 5. The control module 5 compares the detection result with the preset value to screen the twist lock.

[0035] See also Figure 1 to Figure 2 In some embodiments, the unlocking mechanism 2 includes an unlocking motor 21 and an unlocking claw 22, wherein the unlocking claw 22 is connected to the output shaft of the unlocking motor 21, and the unlocking claw 22 is suitable for rotating the lock tongue of the twist lock to unlock.

[0036] When the detection unit 4 adopts an angle sensor and a current sensor, specifically, the angle sensor is connected to the rotating shaft of the unlocking motor 21, and is configured to detect the rotation angle of the output shaft of the unlocking motor 21; and the current sensor is electrically connected to the unlocking motor 21, and is configured to detect the current change of the unlocking motor 21 when driving the unlocking claw 22.

[0037] In some embodiments, the unlocking mechanism 2 includes an unlocking motor 21 and an unlocking claw 22, wherein the unlocking claw 22 is connected to the output shaft of the unlocking motor 21, and the unlocking claw 22 is adapted to rotate the lock tongue of the twist lock to unlock; The detection unit 4 includes an angle sensor and a current sensor; the angle sensor is connected to the rotating shaft of the unlocking motor 21, and is configured to detect the rotation angle of the output shaft of the unlocking motor 21; the current sensor is electrically connected to the unlocking motor 21, and is configured to detect the current change of the unlocking motor 21 when driving the unlocking claw 22; The preset value includes a current peak value and a fully unlocked angle; the control module 5 is configured to receive a current change and compare it with the current peak value, and receive a rotation angle of an output shaft of the unlocking motor 21 and compare it with the fully unlocked angle; The designated area includes a high-quality product area and a marked product area, wherein; when the received rotation angle is equal to the full unlocking angle and the peak value of the current change is always lower than the current peak value, the twist lock is determined to be a high-quality product, and the control module 5 controls the transplanting mechanism 3 to place the twist lock in the high-quality product area; when the received rotation angle is equal to the full unlocking angle but the peak value of the current change exceeds the current peak value, the control module 5 controls the unlocking mechanism 2 to repeatedly unlock the twist lock, and when the peak value of the current change is lower than the current peak value at least twice, the twist lock is determined to be a marked product, and the control module 5 controls the transplanting mechanism 3 to place the twist lock in the marked product area; in short, the angle sensor is responsible for detecting whether the twist lock is completely unlocked, so as to avoid the transplanting mechanism 3 transplanting the twist lock when the twist lock is not completely unlocked; further, the current sensor is responsible for detecting the interruption change of the unlocking motor 21 when it is working. Since the twist lock is difficult to unlock when it is rusted or deformed, the current of the unlocking motor 21 when it is working will increase; further, due to the different degrees of rust on the twist lock, the twist lock is repeatedly unlocked for many times until the peak value of the current change is lower than the current peak value for two consecutive times, and the rust spots on the twist lock are removed to a certain extent.

[0038] In some embodiments, the twist lock disassembly equipment also includes an alarm module 6; when the control module 5 receives a rotation angle that is not equal to the fully unlocked angle, the control module 5 controls the unlocking mechanism 2 to stop working and controls the alarm module 6 to alarm; in short, when the lock tongue of the twist lock is fully unlocked, the alarm module 6 alarms to prompt the operator to check.

[0039] In some embodiments, when the received rotation angle is equal to the full unlocking angle but the peak value of the current change exceeds the current peak value; the number of repeated unlocking times of the unlocking module is recorded as N, and the number of times the peak value of the current change exceeds the current peak value is recorded as M, then the score of the usage status of the twist lock is P, P=M / N; the marked product area includes the area to be repaired and the area to be replaced, wherein; when P is not greater than 0.4, the twist lock is placed in the area to be repaired, otherwise, the twist lock is placed in the area to be replaced; in short, the score P of the usage status is composed of the number of repeated unlocking times as the denominator, and the number of times the peak value of the current change exceeds the current peak value as the numerator, the smaller the P value, the better the performance of the twist lock, the usage status of the twist lock is quantified, the twist locks with the marked product status are secondary classified, and different operations are performed on the twist locks to be repaired and the twist locks to be replaced, thereby reducing the workload of the operators for maintaining the twist locks.

[0040] In this embodiment, the current peak value is set to 120% to 140% of the motor reference current, and the reference current is the working current that normally drives the twist lock to rotate.

[0041] In some embodiments, the unlocking state includes the degree of unlocking completion, and the preset value includes the fully unlocking angle; the unlocking mechanism 2 includes an unlocking motor 21 and an unlocking claw 22, and the unlocking claw 22 is connected to the output shaft of the unlocking motor 21, and the unlocking claw 22 is suitable for rotating the lock tongue of the twist lock to unlock; the detection unit 4 includes an angle sensor, and the angle sensor is configured to detect the rotation angle of the output shaft of the unlocking motor 21; the control module 5 is configured to receive the rotation angle of the output shaft and compare it with the fully unlocking angle; when the rotation angle is equal to the fully unlocking angle, it is determined that the twist lock is completely unlocked, and the transplanting mechanism 3 places the twist lock in a designated area; in short, the angle sensor can be used alone to determine whether the twist lock is completely unlocked.

[0042] In some embodiments, the unlocking state includes the difficulty of unlocking, and the preset value includes the current peak value; the unlocking mechanism 2 includes an unlocking motor 21 and an unlocking claw 22, and the unlocking claw 22 is connected to the output shaft of the unlocking motor 21, and the unlocking claw 22 is suitable for rotating the lock tongue of the twist lock to unlock; the detection unit 4 includes a current sensor, which is electrically connected to the unlocking motor 21, and the current sensor is configured to detect the current change of the unlocking motor 21 when driving the unlocking claw 22; the control module 5 is configured to receive the current change and compare the current change with the current peak value; when the peak value of the current change is always lower than the current peak value, the twist lock is determined to be a high-quality product, and the transplanting mechanism 3 is controlled to place the twist lock in the high-quality area; in short, the current sensor can be used alone to determine the usage status of the twist lock.

[0043] See also Figures 4 to 5, showing a method of using a twist lock removal device, comprising: Step S1, the clamping mechanism 1 clamps the twist lock; Step S2, the unlocking mechanism 2 rotates the lock tongue of the twist lock, the detection unit 4 detects the unlocking state of the unlocking mechanism 2, and the control module 5 receives the unlocking state and compares it with the preset value to determine the use state of the twist lock; Step S3, the control module 5 controls the transplanting mechanism 3 to place the twist lock in a designated area.

[0044] In some embodiments, the unlocking mechanism 2 in step S2 includes an unlocking motor 21; The detection unit 4 includes an angle sensor and a current sensor, wherein the angle sensor is configured to detect the rotation angle of the output shaft of the unlocking motor 21, and the current sensor is configured to detect the current change of the unlocking motor 21 when it is working; The designated area includes a high-quality product area and a marked product area, and the preset value includes a current peak value and a fully unlocked angle, wherein; When receiving a rotation angle equal to the fully unlocked angle and the peak value of the current change is always lower than the current peak value, the twist lock is determined to be a good product, and the control module 5 controls the transplanting mechanism 3 to place the twist lock in the good product area; When the received rotation angle is equal to the full unlocking angle but the peak value of the current change exceeds the current peak value, the control module 5 controls the unlocking mechanism 2 to repeatedly unlock the twist lock. When the peak value of the current change is lower than the current peak value at least twice, the twist lock is judged as a marked product, and the control module 5 controls the transplanting mechanism 3 to place the twist lock in the marked product area.

[0045] In some embodiments, when the control module 5 receives a signal that the rotation angle is not equal to the full unlocking angle, the control module 5 controls the unlocking mechanism 2 to stop working, and controls the alarm module 6 to sound an alarm.

[0046] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 of the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used in this document unless explicitly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0048] Spatially relative terms, such as "inside", "outside", "below", "below", "down", "above", "on", etc., may be used herein to facilitate description of the relationship of one element or feature to another element or feature as illustrated in the figure. In addition to the orientation depicted in the figure, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is turned over, the elements described as "below" or "below" other elements or features will be oriented to be "above" other elements or features. Therefore, the example term "below" can cover the orientation above and below. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0049] In the above discussion, unless otherwise stated, the terms "about," "approximately," "substantially," etc., when used to describe a numerical value, mean a variation of + / - 10% of the value.

[0050] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A twist lock removal device, characterized in that: include: A clamping mechanism (1) adapted to clamp a twist lock; An unlocking mechanism (2) adapted to rotate the locking tongue of the twist lock to separate the twist lock from the corner piece; A transplanting mechanism (3) adapted to place the twist lock in a designated area; A detection unit (4) configured to detect an unlocking state of the unlocking mechanism (2); The control module (5) is configured to receive the detection result of the detection unit (4) and compare it with a preset value, control the unlocking mechanism (2) to complete the unlocking of the twist lock, determine the use status of the twist lock, and then control the transplanting mechanism (3) to place the unlocked twist lock in a designated area.

2. The twist lock removal device according to claim 1, characterized in that The unlocking mechanism (2) comprises an unlocking motor (21) and an unlocking claw (22), wherein the unlocking claw (22) is connected to the output shaft of the unlocking motor (21), and the unlocking claw (22) is suitable for rotating the lock tongue of the twist lock to unlock; The detection unit (4) comprises an angle sensor and a current sensor; The angle sensor is connected to the rotating shaft of the unlocking motor (21), and is configured to detect the rotation angle of the output shaft of the unlocking motor (21); The current sensor is electrically connected to the unlocking motor (21), and is configured to detect a change in current when the unlocking motor (21) drives the unlocking claw (22); The preset values ​​include current peak value and full unlocking angle; The control module (5) is configured to receive a current change and compare it with a current peak value, and to receive a rotation angle of an output shaft of an unlocking motor (21) and compare it with a full unlocking angle; The designated area includes a premium product area and a marked product area, wherein; When receiving a rotation angle equal to the fully unlocked angle and the peak value of the current change is always lower than the current peak value, the twist lock is determined to be a good product, and the control module (5) controls the transplanting mechanism (3) to place the twist lock in the good product area; When receiving a rotation angle equal to the full unlocking angle but a current change peak value exceeding the current peak value, the control module (5) controls the unlocking mechanism (2) to repeatedly unlock the twist lock. When the current change peak value is lower than the current peak value at least twice, the twist lock is determined to be a marked product, and the control module (5) controls the transplanting mechanism (3) to place the twist lock in the marked product area.

3. The twist lock removal device according to claim 2, characterized in that Also includes an alarm module (6); When the control module (5) receives a signal that the rotation angle is not equal to the fully unlocking angle, the control module (5) controls the unlocking mechanism (2) to stop working, and controls the alarm module (6) to sound an alarm.

4. The twist lock removal device according to claim 2, characterized in that When receiving a rotation angle equal to the fully unlocked angle but the peak value of the current change exceeds the current peak value; The number of times the unlocking module is repeatedly unlocked is recorded as N, and the number of times the peak value of the current change exceeds the current peak value is recorded as M, then the score of the use status of the twist lock is obtained as P, P=M / N; The marked product area includes an area to be repaired and an area to be replaced, wherein; When P is not greater than 0.4, the twist lock is placed in the area to be repaired, otherwise, the twist lock is placed in the area to be replaced.

5. The twist lock removal device according to claim 1, characterized in that The unlocking state includes the unlocking completion degree, and the preset value includes the fully unlocking angle; The unlocking mechanism (2) comprises an unlocking motor (21) and an unlocking claw (22), wherein the unlocking claw (22) is connected to the output shaft of the unlocking motor (21), and the unlocking claw (22) is suitable for rotating the lock tongue of the twist lock to unlock; The detection unit (4) comprises an angle sensor, and the angle sensor is configured to detect the rotation angle of the output shaft of the unlocking motor (21); The control module (5) is configured to receive the rotation angle of the output shaft and compare it with the full unlocking angle; When the rotation angle is equal to the fully unlocked angle, it is determined that the twist lock has been completely unlocked, and the transplanting mechanism (3) places the twist lock in a designated area.

6. The twist lock removal device according to claim 1, characterized in that The unlocking state includes the degree of difficulty of unlocking, and the preset value includes the current peak value; The unlocking mechanism (2) comprises an unlocking motor (21) and an unlocking claw (22), wherein the unlocking claw (22) is connected to the output shaft of the unlocking motor (21), and the unlocking claw (22) is suitable for rotating the lock tongue of the twist lock to unlock; The detection unit (4) comprises a current sensor which is electrically connected to the unlocking motor (21), and the current sensor is configured to detect a change in current when the unlocking motor (21) drives the unlocking claw (22); The control module (5) is configured to receive a current change and compare the current change with a current peak value; When the peak value of the current change is always lower than the current peak value, the twist lock is determined to be a good product, and the transplanting mechanism (3) is controlled to place the twist lock in a good product area.

7. A method for using a twist lock removal device, characterized in that: include: Step S1, the clamping mechanism (1) clamps the twist lock; Step S2, the unlocking mechanism (2) rotates the lock tongue of the twist lock, the detection unit (4) detects the unlocking state of the unlocking mechanism (2), and the control module (5) receives the unlocking state and compares it with a preset value to determine the use state of the twist lock; Step S3, the control module (5) controls the transplanting mechanism (3) to place the twist lock in a designated area.

8. The method for using the twist lock removal device according to claim 7, characterized in that: The unlocking mechanism (2) in step S2 comprises an unlocking motor (21); The detection unit (4) comprises an angle sensor and a current sensor, the angle sensor being configured to detect the rotation angle of the output shaft of the unlocking motor (21), and the current sensor being configured to detect the current change of the unlocking motor (21) when it is working; The designated area includes a high-quality product area and a marked product area, and the preset value includes a current peak value and a fully unlocked angle, wherein; When receiving a rotation angle equal to the fully unlocked angle and the peak value of the current change is always lower than the current peak value, the twist lock is determined to be a good product, and the control module (5) controls the transplanting mechanism (3) to place the twist lock in the good product area; When receiving a rotation angle equal to the full unlocking angle but a current change peak value exceeding the current peak value, the control module (5) controls the unlocking mechanism (2) to repeatedly unlock the twist lock. When the current change peak value is lower than the current peak value at least twice, the twist lock is determined to be a marked product, and the control module (5) controls the transplanting mechanism (3) to place the twist lock in the marked product area.

9. The method for using the twist lock removal device according to claim 8, characterized in that: When the control module (5) receives a signal that the rotation angle is not equal to the fully unlocking angle, the control module (5) controls the unlocking mechanism (2) to stop working, and controls the alarm module (6) to sound an alarm.

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