Online automatic detection device for missing strapping

Abstract

The online automatic detection device for strapping omission can detect strapping objects with strapping omission in time, so that an operator can handle the strapping objects in time, and the quality problem is avoided. An on-line strapping missing automatic detection device is provided with a box bundling machine which is provided with an execution mechanism for performing box bundling and strapping on a strapping object; the first sensor is arranged at an inlet or an upstream side of the box bundling machine and outputs a first signal indicating that a strapping object enters the box bundling machine; the detection part is used for detecting the condition that the execution mechanism executes box bundling or the condition that an object to be bundled is bundled by a packing belt, and is connected with the first sensor in a communication manner; the detection part is used for detecting the condition that the execution mechanism executes box bundling or the condition that the object to be bundled is bundled by the packing belt; and when the condition that the execution mechanism executes box bundling and strapping is not detected after the first signal from the first sensor is received, or the condition that a strapping object is strapped by a packing strap is not detected after a set time, the strapping missing is judged.

Description

Technical Field

[0001] This utility model relates to an online automatic detection device for missing prints. Background Technology

[0002] Previously, the strapping machines on the production line lacked a function to detect missing strapping. During prolonged operation, due to equipment malfunctions or issues with the material of the strapping straps, missed strapping could occur. Because there was no detection function, the production line continued uninterrupted, moving to the box stacking section until final packaging and warehousing. This severely impacted the strapping quality of the products, compromising overall quality. Utility Model Content

[0003] One objective of this invention is to provide an online automatic detection device for missed tape, which can promptly detect missed tape items so that operators can handle them in a timely manner and avoid quality problems.

[0004] The first aspect of this utility model provides an online automatic detection device for missing strapping, comprising: a box-strapping machine having an execution mechanism for strapping objects; a first sensor disposed at the entrance or upstream side of the box-strapping machine and outputting a first signal indicating that the object to be strapped has entered the box-strapping machine; and a detection unit that detects whether the execution mechanism has performed box-strapping or whether the object to be strapped has been strapped, and is communicatively connected to the first sensor. When the first signal from the first sensor is received and no case is detected after a predetermined time that the execution mechanism has performed box-strapping or the object to be strapped has been strapped, the device is determined to have missed strapping.

[0005] According to the above technical solution, the online automatic detection device for missed tape in the first aspect of this utility model can detect the missing tape in a timely manner, so that the operator can deal with it in time and avoid quality problems.

[0006] Preferably, it also includes a motion control unit, which is communicatively connected to the first sensor and the actuator. Upon receiving the first signal from the first sensor, the motion control unit outputs a second signal to the actuator to bundle the object to be strapped, and also outputs the second signal to the detection unit. If the detection unit does not receive the second signal from the motion control unit after a predetermined time following receiving the first signal from the first sensor, it determines that a strapping failure has occurred. According to this structure, the strapping failure detection function can be achieved by communicatively connecting the first sensor and the motion control unit to the detection unit, eliminating the need for dedicated sensors to detect the movements of each component of the actuator, thus reducing the number of components and lowering costs.

[0007] Preferably, a second sensor is also included. This second sensor is located at the exit or downstream side of the strapping machine and outputs a third signal indicating that the strapped object has been strapped. The detection unit is communicatively connected to the second sensor. If, after receiving the first signal from the first sensor, the third signal is not received from the second sensor within a predetermined time, it is determined that strapping has been missed. According to this structure, the second sensor located at the exit or downstream side of the strapping machine allows for proper detection, avoiding interference with the actuator and preventing hindrance to the strapping action.

[0008] For example, the first sensor is a photoelectric sensor. For example, the second sensor is a color mark sensor. For example, the detection unit is a PLC controller.

[0009] Preferably, it also includes an alarm notification unit, which is communicatively connected to the detection unit. When a product is determined to be missing tape, the detection unit outputs a fourth signal to the alarm notification unit to issue an alarm. Based on this structure, the operator can be promptly notified to handle the missing tape issue.

[0010] Alternatively, multiple strapping machines and the first sensor can be provided, and the detection unit can detect whether the object to be strapped has been strapped by the strapping machine or whether the actuator of the strapping machine has performed the strapping action. Based on the above structure, multiple strapping machines can be detected by a single detection unit.

[0011] For example, the box-stuffing machine includes a first box-stuffing machine and a second box-stuffing machine arranged in sequence, with an intermediate conveying mechanism provided between the first box-stuffing machine and the second box-stuffing machine.

[0012] Preferably, the device also includes a display operation unit, which is communicatively connected to the detection unit and displays the missing strapping information of the strapping machines that have been detected as having missing strapping. The online detection function of each strapping machine can be enabled or disabled by operating the display operation unit. According to this structure, the missing strapping information (position of the missing strapping) can be displayed more accurately, facilitating the operator's handling of products with missing strapping and allowing for individual selection of whether to enable the online detection function for each strapping machine.

[0013] The second aspect of this utility model provides an online automatic detection device for missing strapping, comprising: a box-strapping machine having an execution mechanism for strapping a box; a first sensor disposed at the entrance or upstream side of the box-strapping machine and outputting a first signal indicating that the box-strapped object has entered the box-strapping machine; a detection unit that detects whether the execution mechanism has performed box-strapping and whether the box-strapped object has been strapped, and is communicatively connected to the first sensor; and an alarm notification unit that is communicatively connected to the detection unit, wherein when the detection unit receives the first signal from the first sensor and fails to detect at least one of the following conditions after a predetermined time: the execution mechanism has performed box-strapping and the box-strapped object has been strapped, the detection unit outputs a fifth signal to the alarm notification unit to issue an alarm.

[0014] According to the above technical solution, the online automatic detection device for missing strapping in the second aspect of this utility model can promptly detect objects with missing strapping, allowing operators to handle them in a timely manner and avoid quality problems. Furthermore, even if a component malfunction prevents detection of either the object being strapped or the actuator having already performed the strapping action, the fault can be detected through the other. It can also detect situations where the actuator has performed the strapping action but the strapping is not properly installed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an online automatic detection device for missing prints according to an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of a touch screen with an online missing printout detection device according to an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of an online automatic detection device for missing prints according to another embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of an online automatic detection device for missed prints, according to another embodiment of this utility model.

[0019] Figure 5 This is a schematic diagram showing parallel packing straps.

[0020] Figure 6 This is a diagram illustrating an example of a specified time period.

[0021] (Symbol Explanation)

[0022] 10A and 10B Carton Strapping Machines

[0023] 20A, 20B First Sensor

[0024] Testing Departments 30, 230, and 330

[0025] 40 Display Operation Section

[0026] 50A, 50B Second Sensor

[0027] 100, 200, and 300 online missing number printers with automatic detection devices

[0028] 101A and 101B implementing agencies

[0029] CA, CB motion control unit

[0030] S2 intermediate conveyor mechanism Detailed Implementation

[0031] The following describes specific embodiments of this utility model. It should be noted that, in order to provide a concise description, this specification cannot provide a detailed description of all features of the actual embodiments. It should be understood that, in the actual implementation of any embodiment, just as in any engineering or design project, various specific decisions are often made to achieve the developer's specific goals and to meet system-related or business-related constraints, and this can change from one embodiment to another. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this utility model, some design, manufacturing, or production modifications based on the technical content disclosed in this disclosure are merely conventional technical means and should not be construed as insufficient content of this disclosure.

[0032] Unless otherwise defined, the technical or scientific terms used in the claims and description shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model patent application description and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0033] In the following description, in order to clearly demonstrate the structure and working method of this utility model, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0034] <First Embodiment>

[0035] Figure 1 This is a schematic diagram of the online missing print automatic detection device 100 according to the first embodiment of this utility model. Figure 2 This is a schematic diagram of the touch screen 41 of the online missing print automatic detection device 100.

[0036] The online missing tape automatic detection device 100 (sometimes referred to as "detection device 100") includes a strapping machine 10A, 10B, a first sensor 20A, 20B, a detection unit 30, an action control unit, and a display and operation unit 40.

[0037] The strapping object W is automatically strapped by a strapping machine during the conveying process. Multiple strapping machines and a first sensor can be provided. In this embodiment, the strapping machines include a first strapping machine 10A and a second strapping machine 10B arranged sequentially. Each strapping machine 10A and 10B has an execution mechanism 101A and 101B for strapping the object W. Here, "strapping object" refers to the object being strapped by the strapping machine, such as a carton containing paper as its contents. The strapping machines 10A and 10B can adopt known structures. Taking the first strapping machine 10A as an example, the strapping machine 10A has an execution mechanism 101A for strapping the object W. The execution mechanism 101A may include a feeding motor, a take-up motor, a strap frame, a cutting mechanism, and a gluing mechanism (all not shown), performing actions such as feeding, take-up, cutting, and gluing. Furthermore, the first strapping machine 10A may also include a conveying mechanism or similar component inside the first strapping machine 10A for conveying the strapped object W. The structure of the second strapping machine 10B may be the same as that of the first strapping machine 10A.

[0038] An intermediate conveying mechanism S2 may be provided between the first strapping machine 10A and the second strapping machine 10B. The intermediate conveying mechanism S2 may be a conveyor belt or other structures known in the art. Furthermore, a conveyor belt S1 may be provided upstream of the multiple strapping machines in the conveying path of the strapping object W, and a conveyor belt S3 may be provided downstream of the multiple strapping machines in the conveying path of the strapping object W. The shape of the packing strap formed by the multiple (in this embodiment, two) strapping machines is not particularly limited. In one example, such as... Figure 1 As shown, when the strapping object W passes the first strapping machine 10A, the first strapping machine 10A moves laterally (as seen from a top view) Figure 1In the middle (vertical direction), the first packing strap D1 is tied to the object W. Then, the object W is turned by the intermediate conveyor S2, and when viewed from above, the first packing strap D1 is along the longitudinal direction (vertical direction). Figure 1 The first strapping object (in the left-right direction) is fed into the second strapping machine 10B. The second strapping machine 10B binds the second strapping D2 along the transverse direction of the first strapping object (viewed from above), thus completing the cross-strap binding of the two straps. In another example, the two straps are bound in parallel by the first and second strapping machines. When the object being bound passes the first strapping machine, the first strapping machine binds the first strap along the transverse direction of the first strapping object (viewed from above). Then, the object being bound is conveyed by the intermediate conveyor without turning, and is fed into the second strapping machine. The second strapping machine binds the second strap along the transverse direction of the first strapping object (viewed from above) at a position spaced apart from the first strapping object (see reference). Figure 5 Alternatively, in an online automatic tape-out detection device with multiple strapping machines, only some of the strapping machines may be used to perform tape-out. In yet another example, in an online automatic tape-out detection device with a first strapping machine and a second strapping machine, only the first strapping machine may be used to perform tape-out, covering only one tape.

[0039] First sensors 20A and 20B are respectively installed at the entrance or upstream side of strapping machines 10A and 10B (upstream side of each strapping machine in the conveying path of the strapped object W). First sensors 20A and 20B are sensors that detect when the strapped object W enters strapping machines 10A and 10B, and output a first signal indicating that the strapped object W has entered the strapping machine. The first signal is sent to the detection unit 30 and the motion control unit, respectively. First sensors 20A and 20B are, for example, photoelectric sensors.

[0040] The online automatic tape-attachment detection device 100 also includes an action control unit. In this embodiment, action control units CA and CB are respectively provided corresponding to the strapping machines 10A and 10B. The action control unit CA (CB) is communicatively connected to the first sensor 20A (20B) and the actuator 101A (101B), and upon receiving a first signal from the first sensor 20A (20B), it outputs a second signal to the actuator 101A (101B) to strap the tape-attachment object W, and also outputs the second signal to the detection unit 30. The action control unit is, for example, a control motherboard with its own internal control logic. If it receives the first signal, it outputs the second signal to the actuator to complete the tape-attachment.

[0041] The detection device 100 may also be equipped with an electrical control cabinet 60. The detection unit 30 and the display and operation unit 40 may be installed in the electrical control cabinet 60.

[0042] The detection unit 30 can detect whether multiple (in this embodiment, two) strapping machines have missed attaching straps (whether the strapping object W has missed attaching straps). The detection device 100 can be configured such that the detection unit 30 detects whether the strapping machine's actuator has performed strapping for each strapping machine. In this embodiment, the detection unit 30 detects whether the actuators 101A and 101B have performed strapping, and is communicatively connected to the first sensors 20A and 20B. Taking the first strapping machine 10A as an example, if the detection unit 30 receives a first signal from the first sensor 20A and does not receive a second signal from the motion control unit CA after a predetermined time, that is, if the detection unit 30 receives the first signal from the first sensor 20A and does not detect that the actuator 101A has performed strapping after a predetermined time, it is determined that strapping has been missed (the first strapping machine 10A has missed attaching straps). The aforementioned "predetermined time" can be appropriately determined based on the running speed of the strapping object W (or conveyor belt), the conveying stroke from a specified position (e.g., the inlet), etc. For example, in Figure 6 In the example, assuming N cartons are conveyed sequentially in the conveying direction of the cartons (W) to which the strapping is applied, if the strapping machine actuator does not operate (no strapping is detected) between the detection of the first carton by the inlet photoelectric sensor and the detection of the second carton by the inlet photoelectric sensor, it is determined that a strapping has been missed. Furthermore, the detection unit 30 can be a PLC controller, such as a Siemens 200SMART PLC. A program can be written in the PLC controller such that if a second signal is not received after a specified time following the receipt of the first signal, it is determined that a strapping has been missed.

[0043] Similarly, in the second box-stuffing machine 10B, if the detection unit 30 receives the first signal from the first sensor 20B and does not receive the second signal from the motion control unit CB after a specified time, that is, if the actuator 101B has not been detected to have performed the box-stuffing, it is determined that the strapping has been missed (the second box-stuffing machine 10B has missed strapping).

[0044] The online automatic tape-out detection device 100 also includes a display operation unit 40. The display operation unit 40 is communicatively connected to the detection unit 30 and displays information about the tape-out of the strapping machine from which tape-out has been detected. In this embodiment, the display operation unit 40 includes a touchscreen 41 (see reference). Figure 2 The online detection function (missing strap online detection function) of each strapping machine can be turned on or off by operating the display operation unit 40. For example, there is an on / off operation button for the operator to operate. By selecting the button on the touch screen 41, the online detection function of two strapping machines can be selected separately. The display operation unit 40 can also be used as an alarm notification unit and can also be connected to an audible and visual alarm 42.

[0045] In one example, after the online detection function for missing strapping is activated, if the detection unit 30 determines that the first strapping machine 10A has a missing strapping, it outputs a fourth signal to the display operation unit 40 to issue an alarm (i.e., displays the missing strapping information of the strapping machine that was detected). For example, the missing strapping alarm of the first strapping machine can be displayed on the touch screen 41 in red or flashing mode, and an alarm notification can be issued through the audible and visual alarm 42. The same applies to the second strapping machine. For example, in Figure 1 The two cross-stitched or parallel stitches shown (refer to) Figure 5 In the event of a situation where the first strapping machine 10A and the second strapping machine 10B are simultaneously activated on the touchscreen 41, if the first strapping machine 10A fails to attach a strap, an alarm will be displayed on the screen; similarly, if the second strapping machine 10B fails to attach a strap, an alarm will be displayed on the touchscreen. An audible and visual alarm 42, including an alarm light, can be used to alert the operator when either or both of the first and second strapping machines 10A or 10B fail to attach a strap. This allows the operator to be notified to address the issue of the missing strap. Furthermore, in an online automatic detection device for missing strapping that has multiple strapping machines, only a portion of the strapping machines can be used for strapping. For example, in an online automatic detection device 100 that has a first strapping machine 10A and a second strapping machine 10B, if only the first strapping machine 10A is used to strap one strap, the online detection function of the first strapping machine 10A can be activated on the touch screen 41, while the online detection function of the second strapping machine 10B can be deactivated. If a missing strapping occurs, the touch screen 41 will display an alarm for the first strapping machine 10A, and an audible and visual alarm can also be triggered simultaneously.

[0046] Furthermore, the detection device 100 can be stopped when a missed tape alarm occurs (for example, the operator removes the carton with the missed tape from the production line for further processing, and then puts the carton back into the inlet conveyor belt of the strapping machine where the missed tape was detected for re-tapping). The display operation unit 40 can also have an alarm reset function, such as an alarm reset operation button for operator operation. After the alarm is reset, the detection device 100 continues to operate normally.

[0047] Working principle of the online missing payment detection device 100:

[0048] A first sensor (photoelectric sensor) 20A is installed at the inlet or upstream side of the first box-tying machine 10A. When a box-tying object W arrives on the conveyor belt, the photoelectric sensor outputs a first signal to the action control unit CA (control main board) of the first box-tying machine 10A. At the same time, the first signal is output to the detection unit 30. The control main board outputs a second signal to the actuator 101A of the first box-tying machine 10A to complete the box-tying action. At the same time, the second signal is output to the detection unit 30. If the first sensor 20A detects the signal, but the actuator 101A of the first box-tying machine does not move (the control main board of the first box-tying machine does not output the second signal to the actuator 101A), then the online missing box-tying automatic detection device 100 (detection unit 30) determines that the box-tying machine 10A has a missing box-tying action.

[0049] When the strapping object W is further conveyed to the second strapping machine 10B, a first sensor (photoelectric sensor) 20B is provided at the inlet or upstream side of the second strapping machine 10B. Each time a strapping object W arrives on the conveyor belt, the photoelectric sensor outputs a first signal to the action control unit CB (control main board) of the second strapping machine 10B. At the same time, the first signal is output to the detection unit 30. The control main board outputs a second signal to the actuator 101B of the second strapping machine 10B to complete the strapping action. At the same time, the second signal is output to the detection unit 30. If the first sensor 20B detects the signal, but the actuator 101B of the second strapping machine does not move (the control main board of the second strapping machine does not output the second signal to the actuator 101B), then the online missing strapping automatic detection device 100 (detection unit 30) determines that there is a missing strapping (the second strapping machine 10B has a missing strapping).

[0050] According to the online automatic detection device 100 for missing tape disclosed herein, it can promptly detect the missing tape object W and issue an alarm, allowing the operator to handle the situation in a timely manner and avoid quality problems; it can reduce the probability of products with missing tape entering the next production stage and ultimately remove defective products with missing tape; the problem of defective products entering the final pallet packaging stage is solved; and it can improve product quality.

[0051] <Second Embodiment>

[0052] Figure 3 This is a schematic diagram of the online missing tape automatic detection device 200 according to the second embodiment. Hereinafter, the differences from the first embodiment will be mainly described, and sometimes the same symbols will be used to mark the same components as in the first embodiment, and repeated descriptions will be omitted. Unless there is a contrary description or conflict with other technical features in the following content, the features described in the first embodiment are also applicable to the second embodiment, and will not be described in detail here.

[0053] The online missing tape automatic detection device 200 (sometimes referred to as "detection device 200") includes a strapping machine 10A, 10B, a first sensor 20A, 20B, a second sensor 50A, 50B, a detection unit 230, an action control unit, and a display and operation unit 40.

[0054] The detection unit 230 detects whether the strapping object W has been strapped with packing straps and is communicatively connected to the first sensors 20A and 20B. More specifically, the detection unit 230 detects whether the strapping object W has been strapped with packing straps by each packing machine.

[0055] Similar to the first embodiment, the first signals from the first sensors 20A and 20B are respectively sent to the detection unit 230 and the motion control unit. In this embodiment, motion control units CA' and CB' are respectively provided corresponding to the strapping machines 10A and 10B. For example, the motion control unit CA' (CB') is communicatively connected to the first sensors 20A (20B) and the actuator 101A (101B), and upon receiving the first signal from the first sensor 20A (20B), it outputs a second signal to the actuator 101A (101B) to strap the object W. In addition, the display operation unit 40 is communicatively connected to the detection unit 230 and displays the information of the strapping machine that was found to have missed strapping.

[0056] The detection device 200 also includes second sensors 50A and 50B. The second sensors 50A and 50B are respectively located at the exit or downstream side of the strapping machines 10A and 10B (downstream of each strapping machine in the conveyor path of the strapped object W), and output a third signal indicating that the strapped object W has been strapped. The second sensors 50A and 50B can each be color mark sensors. Color mark sensors can identify different colors. Based on the current strapping color (e.g., white or brown), the color mark sensors can be pre-set: when the sensor identifies white or brown, it outputs a third signal. Therefore, if the color mark sensor at the strapping machine exit does not output a signal, it indicates that the strapping machine has missed strapping.

[0057] The detection unit 230 is communicatively connected to the second sensors 50A and 50B. If, after receiving a first signal from the first sensors 20A and 20B, a third signal is not received from the second sensors 50A and 50B within a specified time, it determines that the strapping object W has been strapped with the first packing strap D1. Taking the first strapping machine 10A as an example, if, after receiving a first signal from the first sensor 20A, the detection unit 230 does not receive a third signal from the second sensor 50A within a specified time, that is, if, after receiving a first signal from the first sensor 20A, the detection unit 230 does not detect that the strapping object W has been strapped with the first packing strap D1 within a specified time, it determines that the strapping object W has been strapped (the first strapping machine 10A has skipped strapping). The aforementioned "specified time" can be appropriately determined based on the running speed of the strapping object W (or the conveyor belt), the conveying distance from a designated position (e.g., the inlet), etc. For example, in one example, suppose N cartons are conveyed sequentially in the conveying direction of the carton that is the strapping object W. If the color mark sensor does not detect the strapping tape (white or brown) between the time when the first carton is detected by the inlet photoelectric sensor and the time when the second carton is detected by the inlet photoelectric sensor (if the strapping object W has not been strapped), it is determined that the strapping tape was missed.

[0058] Similarly, in the second strapping machine 10B, if the detection unit 230 does not receive a third signal from the second sensor 50B after receiving the first signal from the first sensor 20B within a specified time, it is determined that the strapping tape is missing (the second strapping machine 10B is missing the strapping tape).

[0059] Working principle of the online missing printout detection device 200:

[0060] A first sensor (photoelectric sensor) 20A is installed at the inlet or upstream side of the first strapping machine 10A. When a bundle of straps W arrives on the conveyor belt, the photoelectric sensor outputs a first signal to the action control unit CA' (control main board) of the first strapping machine 10A. At the same time, the first signal is output to the detection unit 230. If the first sensor 20A detects the signal, but the second sensor (color mark sensor) 50A at the outlet or downstream side of the first strapping machine 10A does not output a signal (no white or brown strapping is detected), then the online missing strapping automatic detection device 200 determines that the strapping is missing (the first strapping machine 10A has a missing strapping).

[0061] When the strapping object W is further conveyed to the second strapping machine 10B, a first sensor 20B is provided at the inlet or upstream side of the second strapping machine 10B. Each time a strapping object W arrives on the conveyor belt, the photoelectric sensor outputs a first signal to the action control unit CB' (control main board) of the second strapping machine 10B. At the same time, the first signal is output to the detection unit 230. If the first sensor 20B detects the signal, but the second sensor 50B at the outlet or downstream side of the second strapping machine 10B does not output a signal, the online missing strapping automatic detection device 200 determines that the strapping is missing (the second strapping machine 10B has a missing strapping).

[0062] <Third Embodiment>

[0063] Figure 4 This is a schematic diagram of the online missing tape automatic detection device 300 according to the third embodiment. Hereinafter, the differences from the above embodiments will be mainly described, and sometimes the same symbols will be used to mark the same components as in the above embodiments, and repeated descriptions will be omitted. Unless there is a contrary description or conflict with other technical features in the following content, the features described in the above embodiments are also applicable to the third embodiment, and will not be described in detail here.

[0064] The online missing tape automatic detection device 300 (sometimes referred to as "detection device 300") includes a strapping machine 10A, 10B, a first sensor 20A, 20B, a second sensor 50A, 50B, a detection unit 330, an action control unit, and a display and operation unit 40.

[0065] The detection unit 330 of this embodiment differs from the detection unit 230 of the second embodiment mainly in that it determines faults based on the second signal from the motion control unit and the third signal from the second sensors 50A and 50B. The second signal is sent to the detection unit 330 before the third signal. Furthermore, the motion control units CA and CB of this embodiment have the same structure as those of the motion control units CA and CB of the first embodiment.

[0066] The inspection department 330 inspects the execution mechanisms 101A and 101B of the strapping machines 10A and 10B to check the strapping and binding status of the boxes and the binding object W to check if it has been strapped.

[0067] The detection unit 330 detects whether each strapping machine's actuator has performed strapping and binding operations, and whether the strapped object W has been strapped to the box by the strapping machine. Specifically, the detection unit 330 detects whether actuators 101A and 101B have performed strapping and binding operations, and is communicatively connected to the first sensors 20A and 20B. Furthermore, the detection unit 330 is communicatively connected to the second sensors 50A and 50B. Taking the first strapping machine 10A as an example, if the detection unit 330 receives a first signal from the first sensor 20A but does not receive a second signal from the motion control unit CA and / or a third signal from the second sensor 50A after a predetermined time, that is, if the detection unit 330 receives the first signal from the first sensor 20A but does not detect at least one of the following conditions after a predetermined time: actuator 101A has performed strapping and binding operations, and the strapped object W has been strapped to the box, a fault is determined. If a fault is detected, the detection unit 330 can output a fifth signal to the display operation unit 40 (which also serves as an alarm notification unit) to issue an alarm. Furthermore, when a fault alarm occurs, the detection device 300 can be stopped (for example, the operator can check the tape-attached object W, determine whether the fault is due to a missed tape or a fault in other components, and take further action).

[0068] Similarly, in the second box-stuffing machine 10B, if the detection unit 330 receives the first signal from the first sensor 20B and fails to receive the second signal from the motion control unit CB and / or the third signal from the second sensor 50B after a specified time, it is determined to be a fault.

[0069] <Fourth Embodiment>

[0070] The following mainly describes the differences from the second embodiment described above. Unless otherwise stated below or conflict with other technical features, the features described in the second embodiment also apply to the fourth embodiment, and will not be described in detail here.

[0071] The online automatic detection device for missing packaging tape includes a strapping machine, a first sensor, a second sensor, a detection unit, an action control unit, and a display and operation unit.

[0072] The main difference between this embodiment and the second embodiment lies in the fact that the motion control unit outputs a second signal related to the first strapping machine to the detection unit, and the second sensor is located at the exit or downstream side of the second strapping machine.

[0073] In this embodiment, for the first box-strapping machine, the detection unit checks whether the actuator of the first box-strapping machine has performed the strapping operation. For the second box-strapping machine, the detection unit checks whether the strapped object has been secured with packing straps.

[0074] <Other variations>

[0075] In the above embodiments, multiple strapping machines and corresponding first sensors are provided. However, this disclosure is not limited to this; it can also be applied to an online automatic detection device for missing strapping with a single strapping machine, or to an online automatic detection device for missing strapping with three or more strapping machines.

[0076] The specific embodiments of this utility model have been described above. However, those skilled in the art will understand that the above specific embodiments do not constitute a limitation on this utility model. Those skilled in the art can make various modifications based on the above disclosure without exceeding the scope of this utility model.

Claims

1. An on-line miss call band automatic detection device, characterized in that, Possessing: a case bundling machine (10A, 10B) having an execution mechanism (101A, 101B) that case-bundles and bands a banding object; a first sensor (20A, 20B) provided at an entrance or upstream side of the case bundling machine and outputting a first signal indicating that a banding object has entered the case bundling machine; and a detection section (30, 230) communicatively connected to the first sensor and detecting whether the execution mechanism has executed case bundling and banding or the banding object has been case-bundled and banded, and determining that there is a missed banding when a prescribed time has elapsed after receiving the first signal from the first sensor without detecting that the execution mechanism has executed case bundling and banding or the banding object has been case-bundled and banded.

2. The online missed banding automatic detection device according to claim 1, further possessing an action control section (CA, CB) communicatively connected to the first sensor and the execution mechanism and outputting a second signal to the execution mechanism to case-bundle and band a banding object and to the detection section (30) when receiving the first signal from the first sensor, the detection section determining that there is a missed banding when a prescribed time has elapsed after receiving the first signal from the first sensor without receiving the second signal from the action control section.

3. The online missed banding automatic detection device according to claim 1, further possessing a second sensor (50A, 50B) provided at an exit or downstream side of the case bundling machine and outputting a third signal indicating that a banding object has been case-bundled and banded, the detection section (230) communicatively connected to the second sensor and determining that there is a missed banding when a prescribed time has elapsed after receiving the first signal from the first sensor without receiving the third signal from the second sensor.

4. The online missed banding automatic detection device according to claim 3, wherein the first sensor is a photoelectric sensor, the second sensor is a color marker sensor.

5. The online missed banding automatic detection device according to claim 1, further possessing an alarm notification section communicatively connected to the detection section, the detection section outputting a fourth signal to the alarm notification section to issue an alarm when determining that there is a missed banding.

6. The online missed banding automatic detection device according to claim 1, wherein the detection section is a PLC controller.

7. The online missed banding automatic detection device according to claim 1, wherein the case bundling machine and the first sensor each possess a plurality of, the detection section detects whether a banding object has been case-bundled and banded by each case bundling machine or the execution mechanism of each case bundling machine has executed case bundling and banding.

8. The online missed banding automatic detection device according to claim 7, wherein ​ ​ ​ The case bundling machine includes a first case bundling machine and a second case bundling machine arranged in sequence, An intermediate conveying mechanism (S2) is provided between the first case bundling machine and the second case bundling machine.

9. The online missed band automatic detection device according to claim 7, wherein Further provided is a display operation unit (40) communicatively connected with the detection unit and displaying missed band information of the case bundling machine detected to have missed bands, The online detection function of each case bundling machine is turned on or off by operating the display operation unit.

10. An on-line miss call tag automatic detection apparatus, characterized by, Provided are: a case bundling machine (10A, 10B) having an execution mechanism (101A, 101B) for bundling and banding a banding object; a first sensor (20A, 20B) arranged at an entrance or upstream side of the case bundling machine and outputting a first signal indicating that the banding object enters the case bundling machine; a detection unit (330) communicatively connected with the first sensor and detecting at least one of a case bundling and banding execution condition of the execution mechanism and a banding object bundling and banding condition; and an alarm notification unit communicatively connected with the detection unit, When the detection unit receives the first signal from the first sensor and fails to detect at least one of the case bundling and banding execution condition of the execution mechanism and the banding object bundling and banding condition after a specified time, the detection unit outputs a fifth signal to the alarm notification unit to issue an alarm.

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