Bundling state detection device

Abstract

The utility model provides a strapping state detection device. The strapping state detection device comprises a strapping machine, a conveying belt and a strapping belt detection system. The strapping machine comprises a strapping mechanism and a belt track, the strapping mechanism is located on one side of the conveying belt, and the belt track is located in the middle of the conveying belt and transversely penetrates through the conveying belt; the strapping tape detection system comprises a signal detection unit, a PLC signal processing unit and a display alarm unit. The signal detection unit comprises a micro-touch switch, the micro-touch switch is arranged on the conveying belt, and a detection rod of the micro-touch switch extends into a ring formed by the belt track and the bundling mechanism; the PLC signal processing unit receives a switching value signal of the micro-touch switch; the display alarm unit comprises an operation display screen and an audible and visual alarm which are controlled by the PLC signal processing unit.

Description

Technical Field

[0001] This application relates to the field of packaging-related equipment technology, and in particular to a bundling status detection device. Background Technology

[0002] With the rapid development of the logistics industry, strapping machines, as important equipment in the packaging process, directly impact logistics efficiency and costs due to their level of automation and intelligence. Strapping tape, as a key consumable for strapping machines, directly affects the strapping effect and packaging safety.

[0003] A strapping machine consists of a strapping bin, a strapping mechanism, a strapping conveyor, and an electrical control system. The strapping conveyor and the strapping mechanism form a loop. The strapping mechanism's feeding device feeds the strapping tape from the bin into the conveyor, forming a loop. When the object to be strapped passes through the conveyor, the strapping mechanism tightens the tape and bonds the ends together, completing one strapping action. To complete a full strapping action and ensure a secure and moderately tight bond, the strapping machine's mechanical movements must be well-coordinated with appropriate clearances, the soldering iron temperature must be suitable, and the strapping tape must be of good quality. In actual use, frequent operation can cause wear on mechanical parts and changes in the coordination of mechanical movements. Improper adjustments during use and maintenance can also lead to abnormal strapping actions.

[0004] However, most strapping machines on the market currently lack real-time monitoring of the strapping tape's condition, making it impossible to detect abnormalities in the strapping tape in a timely manner. This can easily lead to safety hazards such as loose packaging and scattered goods, and may even cause equipment malfunctions and shutdowns, affecting production efficiency. Utility Model Content

[0005] This application provides a strapping status detection device, including a strapping machine, a conveyor belt, and a strapping detection system; the strapping machine includes a strapping mechanism and a belt guide, the strapping mechanism is located on one side of the conveyor belt, and the belt guide is located in the middle of the conveyor belt and passes laterally through the conveyor belt;

[0006] The strapping detection system includes a signal detection unit, a PLC signal processing unit, and a display and alarm unit; the signal detection unit includes a micro-touch switch, which is disposed on the conveyor belt, and the detection rod of the micro-touch switch extends into the ring formed by the belt and the strapping mechanism;

[0007] The PLC signal processing unit receives the switching signal from the micro-touch switch; the display alarm unit includes an operation display screen and an audible and visual alarm controlled by the PLC signal processing unit.

[0008] In one possible implementation, the strapping status detection device provided in this application embodiment further includes a color mark sensor in the signal detection unit. The color mark sensor is disposed on the conveyor belt and is located behind the exit of the strapping machine.

[0009] In one possible implementation, the bundling status detection device provided in this application embodiment has a guide plate on the inner side of the conveyor belt, the guide plate is located in front of the micro-touch switch, and the end of the guide plate near the belt is inclined toward the micro-touch switch.

[0010] In one possible implementation, the strapping status detection device provided in this application embodiment has a strapping tape inside the strapping machine with an appearance color different from that of the packaging carton.

[0011] The beneficial effects of this application are as follows: The strapping status detection device provided by this application can realize real-time monitoring of the status of strapping, timely detection of abnormal strapping conditions, avoid safety hazards such as loose packaging and scattered goods, as well as equipment failure and downtime, and improve production efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of the bundling status detection device provided in the embodiments of this application;

[0014] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is the signal timing diagram for the first state;

[0016] Figure 4 This is the signal timing diagram for the second state;

[0017] Figure 5 This is the signal timing diagram for the third state.

[0018] 10-Binding machine;

[0019] 11-Binding mechanism;

[0020] 12-Track;

[0021] 20 - Conveyor belt;

[0022] 30-Micro switch;

[0023] 31 - Detection rod;

[0024] 40-color mark sensor;

[0025] 50 - Guide plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] Figure 1 This is a schematic diagram of the structure of the bundling status detection device provided in the embodiments of this application; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is the signal timing diagram for the first state; Figure 4 This is the signal timing diagram for the second state; Figure 5 This is the signal timing diagram for the third state.

[0028] See Figure 1 and Figure 2 As shown, this application provides a strapping status detection device, including a strapping machine 10, a conveyor belt 20, and a strapping detection system, wherein:

[0029] The strapping machine 10 includes a strapping mechanism 11 and a belt conveyor 12. The strapping mechanism 11 is located on one side of the conveyor belt 20, and the belt conveyor 12 is located in the middle of the conveyor belt 20 and passes through the conveyor belt 20 laterally. When the packaging carton is sent through the belt conveyor 20 and passes through the belt conveyor 12, the strapping mechanism 11 tightens the strapping tape and performs end-to-end bonding to complete one strapping action. A packaging carton is usually strapped together by multiple strapping tapes.

[0030] The cable tie detection system includes a signal detection unit, a PLC signal processing unit, and a display and alarm unit.

[0031] The signal detection unit includes a micro-switch 30, which is mounted on the conveyor belt 20. The detection rod 31 of the micro-switch 30 extends into the ring formed by the belt track 12 and the strapping mechanism 11. The PLC signal processing unit receives the switching signal from the micro-switch 30. The display and alarm unit includes an operation display screen controlled by the PLC signal processing unit and an audible and visual alarm.

[0032] The microswitch 30, due to its small size, light weight, small contact spacing, short actuation stroke, and low actuation force, is suitable for detecting the tension of cable ties. It offers rapid switching, high precision, and good durability, and can adapt to various harsh working environments. During the strapping process, the small, long-bar microswitch 30 can be used to detect the stress on the cable tie, ensuring it is tightly secured on all sides.

[0033] When the packaging carton is strapped, the detection rod 31 of the micro-switch 30 is strapped to the surface of the carton, causing the micro-switch 30 to detect the force on the detection rod 31 and output a strapping signal to the PLC signal processing unit. As the carton continues to be transported backward by the conveyor belt 20, the detection rod 31 of the micro-switch 30 slides out from the gap between the carton and the strapping. At this time, the micro-switch 30 detects that the detection rod 31 has reset and outputs a release signal to the PLC signal processing unit.

[0034] There are three main states during strapping, which can be reflected in the signal output of the micro-touch switch 30 in conjunction with the operating state of the strapping machine 10:

[0035] First state: The strapping is taut and properly bonded (normal state).

[0036] See Figure 3 As shown, due to the tautness and good adhesion of the strapping, the detection rod 31 of the micro-switch 30 is also strapped to the surface of the packaging carton after strapping. The micro-switch 30 detects the force on the detection rod 31, and the signal output of the micro-switch 30 remains "1". Later, as the conveyor belt 20 continues to move, the packaging carton is transported backward by the conveyor belt 20. The detection rod 31 of the micro-switch 30 slides out from the gap between the packaging carton and the strapping. At this time, the micro-switch 30 detects that the detection rod 31 has reset, and the signal output of the micro-switch 30 is "0".

[0037] The second situation: the strapping is pulled too hard, causing the bond to break after bonding (abnormal situation).

[0038] See Figure 4 As shown, since the binding is completed and then broken, the micro-switch 30 will first detect the force on the detection rod 31, and the signal output of the micro-switch 30 will briefly be "1". After the bonding is broken, the signal output of the micro-switch 30 will immediately be "0", at which point the conveyor belt 20 has not yet moved the packaging carton to continue transporting it backward.

[0039] The third state: The strapping tape is bonded but the tension is insufficient, and it is in a loose state (abnormal state).

[0040] See Figure 5 As shown, due to insufficient tension, the strapping is in a loose state, so the detection rod 31 of the micro-touch switch 30 is not tied to the surface of the packaging carton. The micro-touch switch 30 cannot detect the force on the detection rod 31, and the signal output of the micro-touch switch 30 is "0".

[0041] Through the above process, abnormalities can be detected, such as excessive tension of the strapping tape causing it to break after bonding, and strapping tape being bonded but lacking sufficient tension and in a loose state. Then, the PLC signal processing unit controls the conveyor belt 20 to stop sending the cigarette box to the next process, and displays the system working status in real time on the operation display screen, as well as the audible and visual alarm, to remind the operator to manually handle or repair the equipment.

[0042] The strapping status detection device provided in this application embodiment can realize real-time monitoring of the strapping status, promptly detect abnormalities in the strapping, avoid safety hazards such as loose packaging and scattered goods, as well as equipment malfunctions and downtime, and improve production efficiency.

[0043] Specifically, a guide plate 50 is provided on the inner side of the conveyor belt 20. The guide plate 50 is located in front of the micro-touch switch 30, and the end of the guide plate 50 near the belt track 12 is inclined towards the micro-touch switch 30. The guide plate 50 enables the packaging carton to be packaged to approach the micro-touch switch 30 during movement, which is beneficial for the detection rod 31 of the micro-touch switch 30 to be bundled together with the packaging carton.

[0044] In this embodiment, the signal detection unit further includes a color mark sensor 40. The color mark sensor 40 is an advanced detection device that operates based on optical principles. It mainly consists of a light source, an optical system, a photodetector, and a signal processing circuit. It identifies specific color marks by emitting light of a specific wavelength to illuminate the target and receiving the reflected light, based on the differences in reflectivity and absorption characteristics of different colored objects. The color mark sensor 40 is mounted on the conveyor belt 20 and is located behind the exit of the strapping machine 10. The color of the strapping tape inside the strapping machine 10 is different from the color of the packaging carton.

[0045] When used to detect strapping on packaging cartons, the color mark sensor 40 is well-suited for distinguishing between the two colors of the cartons and the strapping. The color mark sensor 40 outputs a "1" signal when it detects a strapping. Through PLC program control, the number of detected strappings can be counted to determine if a specified number of straps are present on the packaging carton. The BS-1W10N strapping from BOJKE has been tested and meets the detection requirements.

[0046] In the description of the embodiments of this application, it should be understood that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. The terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "multiple" means two or more, unless otherwise precisely specified.

[0047] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. For example, they can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A device for detecting the state of bundling, characterized in that, The system includes a strapping machine, a conveyor belt, and a strapping detection system; the strapping machine includes a strapping mechanism and a belt conveyor, the strapping mechanism being located on one side of the conveyor belt, and the belt conveyor being located in the middle of the conveyor belt and passing laterally through the conveyor belt; The strapping detection system includes a signal detection unit, a PLC signal processing unit, and a display and alarm unit; the signal detection unit includes a micro-touch switch, which is disposed on the conveyor belt, and the detection rod of the micro-touch switch extends into the ring formed by the belt and the strapping mechanism; The PLC signal processing unit receives the switching signal from the micro-touch switch; the display alarm unit includes an operation display screen and an audible and visual alarm controlled by the PLC signal processing unit.

2. The bundling status detection device according to claim 1, characterized in that, The signal detection unit also includes a color mark sensor, which is disposed on the conveyor belt and located behind the exit of the strapping machine.

3. The bundling status detection device according to claim 2, characterized in that, The inner side of the conveyor belt is provided with a guide plate, which is located in front of the micro-touch switch. The end of the guide plate closest to the belt is inclined toward the micro-touch switch.

4. The bundling status detection device according to claim 2, characterized in that, The strapping tape inside the strapping machine has a different color than the packaging carton.

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