Device for detecting fatigue of handle of environment-friendly hand bag

Abstract

The utility model discloses a device for detecting fatigue of a handle of an environment-friendly hand bag, and relates to the technical field of hand bag production. The detection device comprises a support, a shaking simulation frame capable of sliding up and down is arranged on the support, and a driving mechanism used for driving the shaking simulation frame to shake up and down is further arranged on the support. Two hooks capable of sliding up and down are arranged on the shaking simulation frame, a shielding plate is arranged at the tops of the hooks, infrared correlation sensors are arranged on the shaking simulation frame and located on the two sides of the shielding plate, and elastic pieces used for preventing the shielding plate from being away from the infrared correlation sensors are further arranged on the shaking simulation frame. The two hooks are arranged to carry out hanging, carrying simulation and jolt testing on the two carrying handles of the same hand bag respectively, the testing time used when one carrying handle of the hand bag is broken and the testing time used when the two carrying handles of the hand bag are both broken can be accurately detected, and accurate experimental data are provided for quality detection of the hand bag.

Description

Technical Field

[0001] This utility model relates to the field of tote bag production technology, specifically a device for detecting fatigue in the handles of environmentally friendly tote bags. Background Technology

[0002] The lifespan testing of the handles of disposable shopping bags is crucial, as it is important in many ways, directly impacting user experience, brand reputation, safety compliance, cost control, and environmental effectiveness.

[0003] Handle lifespan testing typically simulates real-world usage scenarios, focusing on the following metrics:

[0004] Static load-bearing strength: Fill the bag with the specified weight (usually exceeding the nominal load-bearing capacity by a certain percentage), suspend the handle for a period of time (such as a few minutes or hours), and observe whether the handle and connection are broken, severely deformed, or detached.

[0005] Dynamic fatigue life:

[0006] 1. Lifting fatigue test: A certain weight (usually the nominal load capacity) is placed in the bag to simulate the state of being carried by hand. The bag is repeatedly lifted, swung or shaken, and the number of cycles before the handle or connection breaks is recorded.

[0007] 2. Simulated carrying test: Simulate continuous load under walking or bumpy conditions on the test machine.

[0008] 3. Environmental factors: Test the performance changes of the handle under different temperature and humidity conditions (such as low-temperature embrittlement and high-temperature softening).

[0009] 4. Connection strength: Focus on testing the peel strength or tensile strength of the adhesive, stitching or nailing joints between the handle and the bag body.

[0010] 5. Material properties: Test the tensile strength, elongation at break, tear strength, etc. of the handle material itself.

[0011] In existing technologies, in simulated carrying tests, the handles of a tote bag are usually suspended from a hook that can move up and down. An infrared beam sensor is used to detect whether the tote bag is always suspended on the hook to determine whether the handles have broken. However, this detection method can usually only measure the lifespan of the tote bag if both handles break. It cannot simultaneously detect the precise breaking times when one handle breaks or when both handles break. Utility Model Content

[0012] The purpose of this invention is to provide a device for detecting fatigue in the handles of eco-friendly tote bags, in order to solve the problems mentioned in the background art.

[0013] To achieve the above objectives, this utility model provides the following technical solution: a device for detecting fatigue in the handle of an eco-friendly tote bag, comprising a support, on which a sliding, vertically movable shaking simulation frame is mounted, and a driving mechanism for driving the shaking simulation frame to sway up and down is also mounted on the support; the shaking simulation frame is provided with two sliding, vertically movable hooks, and a cover plate is provided at the top of the hooks; infrared beam sensors are mounted on the shaking simulation frame and located on both sides of the cover plate; the shaking simulation frame is also provided with an elastic element for preventing the cover plate from moving away from the infrared beam sensors.

[0014] Preferably, the shaking simulation frame is provided with sliders on both sides, and the support is provided with vertically extending slide rails that correspond one-to-one with the sliders. The shaking simulation frame is slidably mounted on the slide rails corresponding to the support by the sliders.

[0015] Preferably, the drive mechanism includes a drive motor fixed on the bracket, and the power output shaft of the drive motor is connected to an eccentric wheel, which is connected to the shaking simulation frame via a connecting rod.

[0016] Preferably, the shaking simulation frame includes an upper plate seat, a middle plate seat, and a lower plate seat from top to bottom. The middle plate seat and the lower plate seat are both configured as U-shaped structures. The two side walls of the middle plate seat are connected to the bottom surface of the upper plate seat. Two lower plate seats are used, and the two side walls of the lower plate seats are connected to the bottom surface of the middle plate seat.

[0017] Preferably, the hook arm passes through the lower plate seat and is slidably disposed on the lower plate seat.

[0018] Preferably, the baffle passes through the middle plate seat and is slidably disposed on the middle plate seat.

[0019] Preferably, the elastic element is a spring, which is sleeved on the outside of the hook arm of the hook. A limiting plate is provided at the junction of the hook arm and the cover plate, and the spring is located between the limiting plate and the lower plate seat.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This invention features two hooks for suspending the two handles of the same tote bag and simulating carrying and bumping tests. Each hook is equipped with an infrared photoelectric sensor to detect whether the tote bag is still hanging on its corresponding hook. This allows for precise detection of the test time required for one handle to break and the test time required for both handles to break, providing accurate experimental data for tote bag quality testing. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a partial structural diagram of the present invention. Figure 1 ;

[0024] Figure 3 This is a partial structural diagram of the present invention. Figure 2 ;

[0025] Figure 4 This is a partial planar structural diagram of the present invention. Figure 1 ;

[0026] Figure 5 This is a partial planar structural diagram of the present invention. Figure 2 .

[0027] In the picture:

[0028] 1-Standard

[0029] 2-Shaking simulation frame, 21-Upper plate base, 22-Middle plate base, 23-Lower plate base,

[0030] 3-Hook, 31-Limit plate,

[0031] 4-Baffle,

[0032] 5-Spring,

[0033] 61-Slider, 62-Slide rail

[0034] 71-Drive motor, 72-Eccentric wheel, 73-Shaft seat, 74-Connecting rod

[0035] 8-Infrared beam sensor. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] like Figures 1 to 3As shown, a device for detecting fatigue in the handle of an eco-friendly tote bag includes a support 1. A slidable rocking simulation frame 2 is mounted on the support 1. The support 1 also has a drive mechanism for driving the rocking simulation frame 2 to rock up and down. The rocking simulation frame 2 has two slidable hooks 3. A cover plate 4 is mounted on the top of each hook 3. Infrared beam sensors 8 are mounted on the rocking simulation frame 2 and located on both sides of the cover plate 4. The rocking simulation frame 2 also has an elastic element for preventing the cover plate 4 from moving away from the infrared beam sensors 8.

[0038] As a specific implementation method, such as Figures 1 to 3 As shown, sliders 61 are respectively provided on both sides of the shaking simulation frame 2, and vertically extending slide rails 62 are provided on the support 1, which correspond one-to-one with the sliders 61. The shaking simulation frame 2 is slidably mounted on the slide rails 62 corresponding to the support 1 via the sliders 61.

[0039] like Figures 1 to 3 As shown, the driving mechanism includes a drive motor 71 fixed to the bracket 1. An eccentric wheel 72 is connected to the power output shaft of the drive motor 71. The eccentric wheel 72 is connected to the shaking simulation frame 2 via a connecting rod 74. Specifically, the drive motor 71 is fixed to the bracket 1, the eccentric wheel 72 is rotatably mounted on the bracket 1 via a bearing 73, and the eccentric wheel 72 is connected to the power output shaft of the drive motor 71 via a coupling. One end of the connecting rod 74 is hinged to the shaking simulation frame 2, and the other end of the connecting rod 74 is hinged to the eccentric wheel 72.

[0040] Specifically in this embodiment, such as Figures 2 to 5 As shown, the shaking simulation frame 2 includes an upper plate seat 21, a middle plate seat 22, and a lower plate seat 23 from top to bottom. The middle plate seat 22 and the lower plate seat 23 are both U-shaped structures. The two side walls of the middle plate seat 22 are connected to the bottom surface of the upper plate seat 21. There are two lower plate seats 23, and the two side walls of the lower plate seats 23 are connected to the bottom surface of the middle plate seat 22.

[0041] Specifically, in this embodiment, the hook arm of the hook 3 passes through the lower plate seat 23 and is slidably disposed on the lower plate seat 23. Specifically, the lower plate seat 23 is provided with a through hole (not shown in the figure) for the hook arm of the hook 3 to pass through.

[0042] Specifically, in this embodiment, the baffle 4 passes through the middle plate seat 22 and is slidably disposed on the middle plate seat 22. Specifically, the middle plate seat 22 is provided with a through hole (not shown in the figure) for the baffle 4 to pass through.

[0043] In one specific embodiment, the elastic element is a spring 5, which is sleeved on the outside of the hook arm of the hook 3. A limiting plate 31 is provided at the junction of the hook arm of the hook 3 and the cover plate 4. The spring 5 is located between the limiting plate 31 and the lower plate seat 23.

[0044] Specifically, in this embodiment, the infrared transmitting sensor and infrared transmitting receiver included in the infrared beam sensor 8 are respectively fixed to the ground of the upper plate base 21 and located on both sides of the corresponding shield 4. When the spring 5 is in its naturally extended state, the shield 4 is located between the infrared transmitting sensor and the infrared transmitting receiver (e.g., Figure 5 As shown, the shield 4 blocks the infrared light emitted by the infrared transmitter sensor, preventing the infrared receiver from receiving the infrared signal, and the detection is in an isolated state. When the hook 3 is subjected to a downward pulling force, the shield 4 moves away from the infrared transmitter sensor and the infrared receiver, the shield 4's blocking effect on the infrared light is canceled, the infrared receiver can receive the infrared signal normally, and the detection is in a normal infrared receiving detection state.

[0045] Of course, this embodiment also includes a controller for receiving the detection signal from the infrared beam sensor 8 and controlling the operation of the drive motor 71, such as a PLC controller or an industrial computer. The controller is electrically connected to the infrared beam sensor 8 and the drive motor 71. The controller is a conventional technology, and the specific connection method will not be described in detail here.

[0046] Working principle: In use, first, load the test weight into the bag to be tested. Then, hang the two handles of the bag on the two hooks 3 of this testing device. Under the weight of the test weight and the bag, the hooks 3 are forced to move the cover plate 4 downwards, compressing the spring 5. After the cover plate 4 moves downwards, it moves away from the infrared emitting sensor and the infrared emitting receiver, thus canceling its blocking effect on infrared light, allowing the infrared emitting receiver to receive infrared signals normally. Timing begins when the infrared beam sensor 8 can receive infrared signals normally. The controller then controls the drive motor 71 to start operating. The drive motor 71 drives the eccentric wheel 72 to rotate. Simultaneously, the rotation of the eccentric wheel 72 causes the shaking simulation frame 2 to swing up and down via the connecting rod 74, simulating the up-and-down swinging motion of a person carrying a bag while walking. When one handle of the tote bag breaks, the tension on the corresponding hook 3 disappears, and the corresponding cover plate 4 resets under the elastic force of the spring 5 and blocks the infrared rays of the corresponding infrared beam sensor 8. The infrared transmitter and receiver detect the disappearance of the signal and transmit the signal of the broken handle to the controller. At this time, the controller records the usage time after the first handle breaks, and the drive motor 71 continues to operate until the second handle breaks. After both infrared beam sensors 8 no longer detect infrared signals, the signal of both handles breaking is transmitted to the controller. The controller records the usage time after both handles are completely broken, and at the same time, the controller controls the drive motor 71 to stop operating.

[0047] The controller can read the breakage time of one handle and two handles of the tote bag, providing accurate experimental data for the quality inspection of the tote bag.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for detecting fatigue in the handle of an eco-friendly tote bag, characterized in that: The device includes a support frame on which a swaying simulation frame can slide up and down is mounted. The support frame also includes a drive mechanism for driving the swaying simulation frame to sway up and down. The swaying simulation frame has two hooks that can slide up and down, and a cover plate is mounted on the top of each hook. Infrared beam sensors are mounted on the swaying simulation frame and located on both sides of the cover plate. The swaying simulation frame also includes an elastic element for preventing the cover plate from moving away from the infrared beam sensors.

2. The device for detecting fatigue in the handle of an eco-friendly tote bag according to claim 1, characterized in that: The shaking simulation frame is provided with sliders on both sides, and the support is provided with vertically extending slide rails that correspond one-to-one with the sliders. The shaking simulation frame is slidably mounted on the slide rails corresponding to the support by the sliders.

3. The device for detecting fatigue in the handle of an eco-friendly tote bag according to claim 1, characterized in that: The drive mechanism includes a drive motor fixed on the bracket, and the power output shaft of the drive motor is connected to an eccentric wheel. The eccentric wheel is connected to the shaking simulation frame through a connecting rod.

4. The device for detecting fatigue in the handle of an eco-friendly tote bag according to claim 1, characterized in that: The shaking simulation frame includes an upper plate base, a middle plate base, and a lower plate base from top to bottom. The middle plate base and the lower plate base are both configured as U-shaped structures. The two side walls of the middle plate base are connected to the bottom surface of the upper plate base. There are two lower plate bases, and the two side walls of the lower plate bases are connected to the bottom surface of the middle plate base.

5. The device for detecting fatigue in the handle of an eco-friendly tote bag according to claim 4, characterized in that: The hook arm passes through the lower plate seat and is slidably mounted on the lower plate seat.

6. The device for detecting fatigue in the handle of an eco-friendly tote bag according to claim 5, characterized in that: The baffle passes through the middle plate seat and is slidably mounted on the middle plate seat.

7. The device for detecting fatigue in the handle of an eco-friendly tote bag according to claim 6, characterized in that: The elastic element is a spring, which is sleeved on the outside of the hook arm of the hook. A limit plate is provided at the junction of the hook arm and the cover plate, and the spring is located between the limit plate and the lower plate seat.

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