Device for detecting bag opening sound on two sides of sealing bag

Abstract

The utility model relates to a device for detecting bag opening sound on two sides of a sealed bag, which belongs to the technical field of sound detection of sealed bags and comprises a fixed table, a clamping mechanism, a driving mechanism and a sound pickup device. The pair of clamping mechanisms are oppositely arranged, and the clamping jaws on the two clamping mechanisms are oppositely arranged; a vertical baffle plate is arranged on the clamping and fixing seat; the vertical baffle is perpendicular to the moving direction of the clamping mechanism, the clamping jaw is connected with the clamping fixing base, and the clamping jaw comprises a connecting rod and a movable chuck. The movable chuck is propped against the vertical baffle to respectively fix two opening layers of the sealing bag; the driving mechanism is used for driving the clamping mechanism to move. The sound pickup device is arranged below the clamping mechanism and used for collecting sound generated when the sealing bag is opened. The movable chucks on the clamping mechanisms can stably fix the sealing bag, the driving mechanism drives the two clamping mechanisms to move in the opposite directions, and then the sealing bag is opened. The sound pickup device collects sound generated when the bag is opened, and data support is provided for follow-up sound detection.

Description

Technical Field

[0001] This utility model relates to a device for detecting the sound of opening both sides of a sealed bag, belonging to the field of sealed bag sound detection technology. Background Technology

[0002] Resealable bags are widely used for the storage and protection of food, medicine, cosmetics, and other items, playing a crucial role in moisture prevention, leak prevention, and maintaining freshness. The airtightness of the resealable bag directly affects its protective effect; therefore, ensuring the effectiveness of the sealing strip is a critical step in its use.

[0003] Sealing bag design primarily relies on the convex and concave structure on the sealing strip to ensure airtightness. During production, the sealing effect of sealing bags is often tested using methods such as tensile testing, water immersion testing, or airtightness testing. However, these methods are inconvenient for users, so they mainly rely on visual inspection, tactile judgment, and sound to determine the effectiveness of the seal. While visual inspection and tactile judgment are often difficult to intuitively and accurately confirm the sealing status, sound judgment provides more direct feedback on the sealing status and is convenient to operate; therefore, the sound emitted when opening and closing the sealing bag can effectively help users confirm the effectiveness of the seal.

[0004] The sound of opening and closing the bag originates from the friction of the uneven structure of the sealing strip. Its acoustic characteristics (such as frequency and energy distribution) reflect the quality of the seal during closure. When the closing force is insufficient, the dominant frequency of the opening sound will drop from the normal value (approximately 2000Hz) to below 1500Hz, indicating a substandard seal. In some cases, the sealing strip may weaken its closure effect due to foreign object interference, aging, wear, etc. Therefore, an effective sound feedback mechanism can indicate to the user that the sealing strip has properly engaged, not only helping the user confirm the sealing status but also further enhancing the user experience of the resealable bag.

[0005] However, the existing technology does not fully consider the sound feedback needs of the sealed bag during customer use, nor does it provide an effective sealing strip opening and closing sound detection device to detect the sealing effect of the sealing strip. Therefore, this application proposes a sealing bag opening sound detection device on both sides. Utility Model Content

[0006] The purpose of this invention is to provide a device for detecting the sound of opening both sides of a sealed bag to improve or solve the technical problems existing in the prior art as described above.

[0007] The technical solution provided by this utility model is as follows: a device for detecting the sound of opening both sides of a sealed bag, including a fixed platform, a clamping mechanism, a driving mechanism, and a sound pickup device;

[0008] A pair of clamping mechanisms are arranged opposite to each other and slidably connected to a fixed platform. Each clamping mechanism includes a gripper, and the grippers on the two clamping mechanisms are arranged opposite to each other. Each clamping mechanism also includes a clamping fixing seat, on which a vertical baffle is provided. The vertical baffle is perpendicular to the moving direction of the clamping mechanism. The gripper is connected to the clamping fixing seat, and the gripper includes a connecting rod and a movable clamping head. The movable clamping head fixes the two opening layers of the sealed bag by abutting against the vertical baffle.

[0009] The drive mechanism is mounted on the fixed platform and is used to drive the clamping mechanism to move.

[0010] The sound pickup device is located below the clamping mechanism and is used to collect the sound emitted by the sealed bag when it is opened.

[0011] Compared with the prior art, the technical solution provided by this utility model has the following advantages: the movable clamp on the clamping mechanism can stably fix the sealed bag, and the driving mechanism drives the two clamping mechanisms to move in opposite directions, so that the sealed bag can be opened; the sound pickup device can accurately collect the sound emitted when the bag is opened, providing data support for subsequent sound detection.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] Furthermore, the movable clamp is provided with a rubber pad layer, which secures the sealed bag by elastically abutting against the vertical baffle.

[0014] The beneficial effect of adopting the above-mentioned further solution is that the rubber pad layer can increase friction, improve the stability of clamping, and at the same time avoid scratching the surface of the sealing bag.

[0015] Furthermore, an opening bag mechanism and a closing bag mechanism are provided above the clamping mechanism; the opening bag mechanism and the closing bag mechanism are arranged opposite to each other and slidably connected to the fixed platform; the driving mechanism is electrically connected to the opening bag mechanism and the closing bag mechanism respectively; a hanging plate is fixedly connected below the opening bag mechanism and the closing bag mechanism; the clamping mechanism is provided with a positioning pin; the positioning pin is inserted into the hanging plate to realize the linkage between the clamping mechanism and the opening bag mechanism and the closing bag mechanism.

[0016] The beneficial effects of adopting the above-mentioned further solution are that the clamping mechanism can be connected to the bag opening and closing mechanism above, thereby driving the bag opening and closing mechanism to move in opposite directions, which in turn drives the clamping mechanism to move. The linkage structure design improves coordination and space utilization. Moreover, one device can integrate sound detection of multiple bag opening and closing methods, which significantly improves the efficiency of the device.

[0017] Furthermore, the bag opening mechanism includes an adjusting mounting base and a straight rod, the straight rod being vertically mounted on the adjusting mounting base; the adjusting mounting base includes a mounting plate, an upper baffle, a lower baffle, and a guide post, the upper baffle and the lower baffle are fixed on the mounting plate, the guide post is fixed between the upper baffle and the lower baffle, a straight rod mounting base is sleeved on the guide post, the straight rod mounting base is provided with a locking mechanism, so that the straight rod mounting base can slide along the guide post and be fixed in any position; a straight rod is vertically mounted on the straight rod mounting base; the adjusting mounting base is also provided with a displacement sensor.

[0018] Furthermore, the bag-closing mechanism includes a second mounting plate, a second guide post, and a clamping member; the second mounting plate is provided with a movable plate, which can slide up and down along the second mounting plate, and the movable plate is provided with a locking mechanism, so that the movable plate can slide on the second mounting plate and be fixed in any position; a limiting plate is provided above the second mounting plate; the second guide post is vertically mounted on the movable plate, the clamping member is sleeved on the second guide post, and a limiting block is provided at the end of the second guide post; a knob is provided on the limiting block, and the knob can adjust the relative movement of the clamping member; a proximity switch is installed on the second mounting plate.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the bag opening mechanism and the bag closing mechanism can simulate human fingers, allowing for single-finger swipe opening and two-finger swipe closing.

[0020] Furthermore, the fixed platform includes uprights and a horizontal plate, with two uprights and the horizontal plate fixedly connected to the two uprights.

[0021] Furthermore, it also includes a placement platform, and the column and the placement platform are fixedly connected by a column fixing seat.

[0022] The beneficial effect of adopting the above-mentioned further solution is that the structure of columns and horizontal plates can provide stable support; the placement platform can provide additional support, further improving the stability of the device.

[0023] Furthermore, a linear module is fixed above the horizontal plate. The linear module includes a guide rail, and the bag opening mechanism and the bag closing mechanism move linearly along the guide rail.

[0024] The beneficial effect of adopting the above-mentioned further solution is that the linear module can provide precise linear motion, ensuring the stability and consistency of the mechanism's movement process.

[0025] Furthermore, the horizontal plate is provided with a moving track, and a slider is slidably connected on the moving track, and a pair of clamping mechanisms are assembled on the slider.

[0026] The advantage of adopting the above-mentioned further solution is that the design of the moving track and slider allows for easy adjustment of the position of the clamping mechanism to accommodate sealing bags of different sizes.

[0027] Furthermore, it also includes an operation panel, to which the drive mechanism and the sound pickup device are electrically connected; the operation panel includes a parameter adjustment module, a display module, and a sound detection module, the sound detection module being used to detect whether the sound signal collected by the sound pickup device is within a preset threshold range.

[0028] The advantages of adopting the above-mentioned further solutions are that the drive mechanism can provide stable power, ensuring the automation of the bag opening process; the operation panel can provide an intuitive operating interface, making it convenient for users to set parameters and view results; and the sound detection module can automatically determine whether the bag opening sound is qualified, improving detection efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a front view structural diagram of the present utility model;

[0031] Figure 3 This is a schematic diagram of the rear structure of the present invention;

[0032] Figure 4 This is a partial enlarged view of the bag opening mechanism and the clamping mechanism in this utility model;

[0033] Figure 5 This is a schematic diagram of the clamping mechanism in this utility model;

[0034] Figure 6 This is a schematic diagram of the bag-opening mechanism in this utility model;

[0035] Figure 7 This is a schematic diagram of the bag-closing mechanism in this utility model.

[0036] In the diagram, 1 is the fixed platform; 101 is the column; 102 is the column mounting base; 103 is the horizontal plate; and 1031 is the moving track.

[0037] 2. Clamping mechanism; 201. Clamping base; 2011. Vertical baffle; 202. Gripper; 2021. Connecting rod; 2022. Moving chuck; 203. Sensing plate; 204. Positioning pin;

[0038] 3. Bag opening mechanism; 301. Adjustable mounting base; 3011. Mounting plate one; 3012. Upper baffle; 3013. Lower baffle; 3014. Guide post one; 3015. Straight rod mounting base; 302. Straight rod; 303. Displacement sensor;

[0039] 4. Sound pickup device; 5. Linear module; 501. Guide rail; 6. Placement platform; 7. Drive mechanism; 8. Operation panel;

[0040] 9. Closing mechanism; 901. Mounting plate two; 9011. Movable plate; 9012. Locking mechanism; 9013. Limiting plate; 902. Guide post two; 903. Clamping component; 904. Limiting block; 905. Knob;

[0041] 10. Mounting plate. Detailed Implementation

[0042] The principles and features of this utility model are described below with reference to examples. The examples are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0043] like Figures 1-7 As shown, a device for detecting the sound of opening both sides of a sealed bag includes a fixed platform 1, a clamping mechanism 2, a driving mechanism 7, and a sound pickup device 4. A pair of clamping mechanisms 2 are arranged opposite to each other and slidably connected to the fixed platform 1. Each clamping mechanism 2 includes a gripper 202, with the grippers 202 on both clamping mechanisms 2 arranged opposite to each other. Each clamping mechanism 2 also includes a clamping fixing seat 201, on which a vertical baffle 2011 is provided. The vertical baffle 2011 is perpendicular to the moving direction of the clamping mechanism 2. The grippers 202 are connected to the clamping fixing seat 201, and each gripper 202 includes a connecting rod 2021 and a movable clamping head 2022. Specifically, the movable clamping head 2022 has a rubber pad layer, and the movable clamping head 2022 fixes the two opening layers of the sealed bag by abutting against the vertical baffle 2011. The clamping fixing seat 201 also has a sensing plate 203.

[0044] The drive mechanism 7 is mounted on the fixed platform 1 and is used to drive the clamping mechanism 2 to move. The sound pickup device 4 is located below the clamping mechanism 2 and is used to collect the sound emitted by the sealed bag when it is opened.

[0045] The movable clamp 2022 on the clamping mechanism 2 can stably fix the sealed bag. The drive mechanism 7 drives the two clamping mechanisms 2 to move in opposite directions, and the sealed bag is then opened. The sound pickup device 4 is placed on the fixed platform below the sealed bag. The sound receiving component is close to the sealed bag and can accurately collect the sound emitted when the bag is opened, providing data support for subsequent sound detection.

[0046] Above the clamping mechanism 2 are a bag-opening mechanism 3 and a bag-closing mechanism 9. The bag-opening mechanism 3 and the bag-closing mechanism 9 are arranged opposite each other and slidably connected to the fixed platform 1. The driving mechanism 7 is electrically connected to the bag-opening mechanism 3 and the bag-closing mechanism 9 respectively. A hanging plate 10 is fixedly connected below each of the bag-opening mechanism 3 and the bag-closing mechanism 9. The clamping mechanism 2 is provided with a positioning pin 204, which, by inserting into the hanging plate 10, realizes the linkage between the clamping mechanism 2 and the bag-opening mechanism 3 and the bag-closing mechanism 9. The clamping mechanism 2 can be connected to the bag-opening mechanism 3 and the bag-closing mechanism 9 above by inserting into it, thereby driving the driving mechanism 7 to drive the bag-opening mechanism 3 and the bag-closing mechanism 9 to move in opposite directions, thus moving the clamping mechanism 2. The linkage structure design improves coordination and space utilization; moreover, one device can integrate sound detection for multiple bag-opening and bag-closing methods, significantly improving the efficiency of the device.

[0047] The bag opening mechanism 3 includes an adjusting mounting base 301 and a straight rod 302. The straight rod 302 is vertically mounted on the adjusting mounting base 301. The adjusting mounting base 301 includes a mounting plate 3011, an upper baffle 3012, a lower baffle 3013, and a guide post 3014. The upper baffle 3012 and the lower baffle 3013 are fixed on the mounting plate 3011. The guide post 3014 is fixed between the upper baffle 3012 and the lower baffle 3013. A straight rod 302 mounting base is sleeved on the guide post 3014. The straight rod 302 mounting base is provided with a locking mechanism 9012, which allows the straight rod 302 mounting base to slide along the guide post 3014 and be fixed in any position. The straight rod 302 is vertically mounted on the straight rod 302 mounting base. A displacement sensor 303 is also provided on the adjusting mounting base 301. The bag opening mechanism 3 can be used to open the sealed bag on one side. By placing the straight rod 302 inside the sealed bag, the bag opening mechanism 3 is driven to move by the drive mechanism 7 to realize the one-sided opening action of the sealed bag.

[0048] The bag-closing mechanism 9 includes a second mounting plate 901, a second guide post 902, and a clamping member 903. The second mounting plate 901 has a movable plate 9011, which can slide up and down along the mounting plate 901. The movable plate 9011 has a locking mechanism 9012, allowing it to slide on the mounting plate 901 and be fixed in any position. A limiting plate 9013 is provided above the mounting plate 901. The second guide post 902 is vertically mounted on the movable plate 9011, and the clamping member 903 is sleeved on the second guide post 902. A limiting block 904 is provided at the end of the second guide post 902. A knob 905 is provided on the limiting block 904, which can adjust the relative movement of the clamping member 903. A proximity switch is installed on the second mounting plate 901. The design of the movable plate 9011 and the locking mechanism 9012 allows for height adjustment of the guide post 902, accommodating sealed bags of different sizes. The clamping members 903 can move relative to the guide post 902; by controlling the spacing of the clamping members 903, they can adapt to sealed bags of different thicknesses, improving the versatility and flexibility of the device. A proximity switch is used to sense the position of the sensing plate 203 on the clamping mechanism, thereby stopping the movement.

[0049] The bag opening mechanism 3 and bag closing mechanism 9 can simulate human fingers, enabling single-finger swipe opening and two-finger swipe closing, allowing a single device to integrate sound detection for multiple bag opening and closing methods. In this application, because they are connected to the drive mechanism 7, they drive the clamping mechanism 2. The bag opening mechanism 3 and bag closing mechanism 9 are equipped with displacement sensors 303 and proximity switches. When they move towards each other, the sensors determine the distance and decelerate when the two mechanisms approach each other, preventing high-speed collisions that could damage the equipment.

[0050] The fixed platform 1 includes two uprights 101 and two horizontal plates 103. The horizontal plates 103 are fixedly connected to the two uprights 101. It also includes a placement platform 6, with the uprights 101 and the placement platform 6 fixedly connected via upright 101 fixing seats. The structure of the uprights 101, horizontal plates 103, and placement platform 6 provides stable support.

[0051] A linear module 5 is further fixed above the horizontal plate 103. The linear module 5 includes a guide rail 501. The bag opening mechanism 3 and the bag closing mechanism 9 move linearly along the guide rail 501. The linear module 5 can provide precise linear motion to ensure that the mechanism maintains stability and consistency during the process of moving in the opposite direction.

[0052] The horizontal plate 103 is provided with a moving track 1031, and a slider is slidably connected to the moving track 1031. A pair of clamping mechanisms 2 are assembled on the slider. The design of the moving track 1031 and the slider allows for easy adjustment of the position of the clamping mechanism 2 to accommodate sealing bags of different sizes. Sound-absorbing cotton is provided inside the fixed platform 1, the linear module 5, and the column 101 to reduce the noise generated by the movement of the device and minimize the impact on the sound measurement of the sealing bag.

[0053] It also includes an operation panel 8, to which the drive mechanism 7 and the sound pickup device 4 are electrically connected. The operation panel 8 includes a parameter adjustment module, a display module, and a sound detection module. The sound detection module is used to detect whether the sound signal collected by the sound pickup device 4 is within a preset threshold range. The drive mechanism 7 provides stable power to ensure the automation of the bag opening process, and the operation panel 8 provides an intuitive operating interface for easy parameter setting and result viewing. The sound detection module can automatically determine whether the bag opening sound is qualified, improving detection efficiency.

[0054] The working principle of this utility model is as follows: Before testing, the operator can input the type and specifications (specifically including bag length) of the sealed bag to be tested through the parameter adjustment module on the operation panel 8, and set appropriate parameters such as bag opening speed and sound threshold.

[0055] The operator manipulates the control panel 8 to drive the opening mechanism 3 and closing mechanism 9 in opposite directions via the drive mechanism 7. This brings the opening and closing mechanisms close together and fixed in the center of the detection device. Then, the opening and closing mechanisms 3 and 9 are connected to the clamping mechanism 2 via the mounting plate 10 and positioning pin 204. At this point, the clamping mechanism 2 is also close together, with the vertical baffle 2011 in a closed position. Using the movable clamping head 2022 on the gripper 202 of the clamping mechanism 2, the two layers of the opening of the sealed bag to be tested are clamped onto the vertical baffles 2011 of the two clamping mechanisms 2, ensuring the sealed bag is firmly fixed and sealed. The sound pickup device 4 is placed below or to the side of the sealed bag.

[0056] Manipulating the control panel 8 again, the linear module 5 drives the bag opening mechanism 3 and the bag closing mechanism 9 to move a certain distance in opposite directions at a preset speed (the distance moved by a single mechanism does not exceed 40% of the length of the opening edge of the sealed bag to avoid tearing the sealed bag), simulating the action of a person's two hands pulling open the sealed bag, thus opening the sealed bag. During the bag opening process, the sound pickup device 4 collects the sound signal emitted by the sealed bag and transmits it to the sound detection module on the control panel 8. The sound detection module analyzes the collected sound signal, determines whether it is within a preset threshold range, and displays information such as the frequency of the sound through the display module, thereby determining whether the opening sound of the sealed bag is qualified.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for detecting the sound of opening both sides of a sealed bag, characterized in that, It includes a fixed platform (1), a clamping mechanism (2), a drive mechanism (7), and a sound pickup device (4); A pair of clamping mechanisms (2) are arranged opposite to each other and slidably connected to a fixed platform (1). Each clamping mechanism (2) includes a gripper (202), and the grippers (202) on the two clamping mechanisms (2) are arranged opposite to each other. Each clamping mechanism (2) also includes a clamping fixing seat (201), and the clamping fixing seat (201) is provided with a vertical baffle (2011). The vertical baffle (2011) is perpendicular to the moving direction of the clamping mechanism (2). The gripper (202) is connected to the clamping fixing seat (201). The gripper (202) includes a connecting rod (2021) and a movable clamp (2022). The movable clamp (2022) fixes the two opening layers of the sealed bag by abutting against the vertical baffle (2011). The drive mechanism (7) is mounted on the fixed platform (1) and is used to drive the clamping mechanism (2) to move. The sound pickup device (4) is located below the clamping mechanism (2) and is used to collect the sound emitted by the sealed bag when it is opened.

2. The sealing bag opening sound detection device according to claim 1, characterized in that, The movable clamp (2022) is provided with a rubber pad layer, which secures the sealed bag by elastically abutting against the vertical baffle (2011).

3. The sealing bag opening sound detection device according to claim 1, characterized in that, The clamping mechanism (2) is provided with an opening mechanism (3) and a closing mechanism (9) above it; the opening mechanism (3) and the closing mechanism (9) are arranged opposite to each other and are slidably connected to the fixed platform (1); the driving mechanism (7) is electrically connected to the opening mechanism (3) and the closing mechanism (9) respectively; a hanging plate (10) is fixedly connected below the opening mechanism (3) and the closing mechanism (9); the clamping mechanism (2) is provided with a positioning pin (204); the positioning pin (204) is inserted into the hanging plate (10) to realize the linkage between the clamping mechanism (2) and the opening mechanism (3) and the closing mechanism (9).

4. The sealing bag opening sound detection device according to claim 3, characterized in that, The bag opening mechanism (3) includes an adjusting mounting base (301) and a straight rod (302), the straight rod (302) being vertically mounted on the adjusting mounting base (301); the adjusting mounting base (301) includes a mounting plate (3011), an upper baffle (3012), a lower baffle (3013), and a guide post (3014), the upper baffle (3012) and the lower baffle (3013) being fixed on the mounting plate (3011), and the guide post (3014) being fixed on the upper baffle (3012). Between 12) and the lower baffle (3013), a straight rod mounting seat (3015) is sleeved on the first guide post (3014), and a locking mechanism (9012) is provided on the straight rod mounting seat (3015) so that the straight rod mounting seat (3015) can slide along the first guide post (3014) and be fixed in any position; a straight rod (302) is vertically installed on the straight rod mounting seat (3015); a displacement sensor (303) is also provided on the adjusting mounting seat (301).

5. The sealing bag opening sound detection device according to claim 3, characterized in that, The bag-closing mechanism (9) includes a second mounting plate (901), a second guide post (902), and a clamping member (903); the second mounting plate (901) is provided with a movable plate (9011), which can slide up and down along the second mounting plate (901), and the movable plate (9011) is provided with a locking mechanism (9012), so that the movable plate (9011) can slide on the second mounting plate (901) and be fixed in any position; the second mounting plate (901) A limiting plate (9013) is provided above; the second guide post (902) is vertically installed on the movable plate (9011), the clamping member (903) is sleeved on the second guide post (902), and a limiting block (904) is provided at the end of the second guide post (902); a knob (905) is provided on the limiting block (904), and the knob (905) can adjust the clamping member (903) to make relative movement; a proximity switch is installed on the second mounting plate (901).

6. The sealing bag opening sound detection device according to claim 3, characterized in that, The fixed platform (1) includes two uprights (101) and two horizontal plates (103). The horizontal plates (103) are fixedly connected to the two uprights (101).

7. The sealing bag opening sound detection device according to claim 6, characterized in that, A linear module (5) is further fixed above the horizontal plate (103). The linear module (5) includes a guide rail (501). The bag opening mechanism (3) and the bag closing mechanism (9) move linearly along the guide rail (501).

8. The sealing bag opening sound detection device according to claim 6, characterized in that, It also includes a placement platform (6), and the column (101) and the placement platform (6) are fixedly connected by a column fixing seat (102).

9. The sealing bag opening sound detection device according to claim 6, characterized in that, The horizontal plate (103) is provided with a moving track (1031), and a slider is slidably connected on the moving track (1031). A pair of clamping mechanisms (2) are assembled on the slider.

10. The sealing bag opening sound detection device according to claim 9, characterized in that, It further includes an operation panel (8), and the drive mechanism (7) and the sound pickup device (4) are electrically connected to the operation panel (8); The operation panel (8) includes a parameter adjustment module, a display module, and a sound detection module. The sound detection module is used to detect whether the sound signal collected by the sound pickup device (4) is within a preset threshold range.

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