Paper diaper waistline sealing and pressing device

Abstract

The utility model relates to a paper diaper waistline sealing and pressing device. According to the technical scheme, the paper diaper waistline sealing and pressing device is characterized by comprising a mounting frame, a sealing and pressing module, a transmission module, a first driving module, a rotating roller, a second driving module, an ultrasonic module and a control module; the rotating roller is rotatably mounted on one side of the mounting frame, and the input end of the rotating roller is in transmission connection with the output end of the second driving module; the transmission module is installed on the side, close to the rotating roller, of the installation frame. The transmission module is arranged on one side of the rotating roller; the first driving module is mounted on the other side, away from the rotating roller, of the mounting frame, and the output end of the first driving module is in transmission connection with the input end of the transmission module. The multiple sealing and pressing modules are installed at the output end of the transmission module at equal intervals. The ultrasonic module is mounted on the rotating roller; the whole structure is simple, installation is convenient, the assembly structure that the single roller is matched with the ultrasonic module to follow sealing and pressing is adopted, the waistline sealing and pressing effect of the paper diaper is guaranteed, meanwhile, the whole size of the equipment is small, the occupied space is small, and the equipment manufacturing cost is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of diaper waistband sealing technology, and more specifically, it relates to a diaper waistband sealing device. Background Technology

[0002] In the diaper manufacturing industry, a crucial step in producing both baby and adult diapers is waistband sealing. Figure 1 In a continuously produced product string, end sealing is performed before a single product is cut. This can be understood as pressing two continuous layers of material together at equal intervals. Existing sealing devices mostly use ultrasonic multi-roller sealing devices to seal the waistband of diapers. However, existing multi-roller sealing devices have complex structures, high manufacturing costs, and large space requirements during assembly. Therefore, we propose a new diaper waistband sealing device. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a diaper waistband sealing device to solve the problems of complex structure, high manufacturing cost and large space occupation during assembly of the existing diaper sealing devices.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a diaper waistband sealing device, comprising: a mounting frame, a plurality of sealing modules for sealing the waistband of a diaper, a transmission module for driving the sealing modules to rotate cyclically, a first drive module for driving the transmission module, a rotating roller, a second drive module for driving the rotating roller, an ultrasonic module, and a control module; the rotating roller is rotatably mounted on one side of the mounting frame, and its input end is drively connected to the output end of the second drive module; the transmission module is mounted on the mounting frame on the side near the rotating roller; the first drive module is mounted on the mounting frame on the other side away from the rotating roller, and its output end passes through the mounting frame and is drively connected to the input end of the transmission module; the plurality of sealing modules are equidistantly mounted on the output end of the transmission module; the ultrasonic module is mounted on the rotating roller; the ultrasonic module, the first drive module, and the second drive module are respectively electrically connected to the control module.

[0005] Optionally, the sealing module includes: a fixed plate, a plurality of sliding guide rods, a plurality of pressure springs adapted to the sliding guide rods, and a sealing plate; the fixed plate is fixedly connected to the output end of the transmission module; one end of each of the plurality of sliding guide rods is slidably connected to the fixed plate, and the other end is fixedly connected to the pressure plate; the plurality of pressure springs are correspondingly sleeved on the plurality of sliding guide rods and located in the gap between the fixed plate and the sealing plate; the two ends of the pressure springs are fixedly connected to the sealing plate and the fixed plate, respectively.

[0006] Optionally, it also includes: at least one drive cylinder; the cylinder is mounted on the fixed plate, and its output end passes through the fixed plate and is fixedly connected to the sealing plate.

[0007] Optionally, the transmission module includes: an arc-shaped limiting frame adapted to the rotating roller, a first guide frame, a second guide frame, a plurality of rotating shafts, a plurality of first transmission sprockets, a plurality of second transmission sprockets, a first transmission chain adapted to the first transmission sprockets, and a second transmission chain adapted to the second transmission sprockets; the arc-shaped limiting frame is fixedly connected to the mounting frame and is arranged in a semi-enclosed state on one side of the rotating roller; the arc-shaped limiting frame and the rotating roller cooperate to form a feeding channel for diapers to pass through; the first guide frame is installed on the mounting frame at an upward inclination from right to left; the second guide frame is installed on the mounting frame at a downward inclination from right to left; the first guide frame and the second guide frame cooperate to form a figure-eight structure frame in a sideways state, and is located on the side of the arc-shaped limiting frame away from the rotating roller; the plurality of rotating shafts are rotatably installed on the mounting frame on the side close to the rotating roller; the plurality of first transmission sprockets are respectively installed one-to-one on the plurality of rotating shafts near the rotating roller. Near one end of the mounting frame; a plurality of second transmission sprockets are respectively installed one-to-one on the ends of a plurality of rotating shafts away from the mounting frame; the first transmission chain is wound around the plurality of first transmission sprockets; the second transmission chain is wound around the plurality of second transmission sprockets; the first transmission chain and the second transmission chain are parallel to each other; a plurality of fixed plates are equidistantly disposed in the gap between the first transmission chain and the second transmission chain, and their two ends are respectively fixedly connected to the first transmission chain and the second transmission chain; the inner sides of the first transmission chain and the second transmission chain are respectively attached to the side of the first guide frame and the second guide frame away from the arc-shaped limiting frame; the outer sides of the first transmission chain and the second transmission chain are respectively attached to the side of the arc-shaped limiting frame away from the rotating roller; the first guide frame, the second guide frame and the arc-shaped limiting frame are all provided with movable channels for the plurality of sealing modules to pass through; the input end of any of the rotating shafts is electrically connected to the first drive module.

[0008] Optionally, the first drive module includes: a first drive motor and a first reducer; the first drive motor and the first reducer are respectively mounted on the side of the mounting frame away from the rotating roller; the output end of the first drive motor is drivenly connected to the first reducer; the output end of the first reducer is drivenly connected to the input end of any of the rotating shafts; the first drive motor is electrically connected to the control module.

[0009] Optionally, the control module includes: an electrical box and a controller; the controller is installed inside the electrical box; the controller is electrically connected to the first drive motor, the second drive module and the ultrasonic module respectively.

[0010] Optionally, the ultrasonic module includes: a plurality of ultrasonic generators; the plurality of ultrasonic generators are equidistantly installed inside the rotating roller; the outer wall of the rotating roller has a plurality of square holes corresponding one-to-one with the plurality of ultrasonic generators; the distance between two adjacent square holes is the same as the distance between two adjacent sealing plates; the plurality of ultrasonic generators are respectively electrically connected to the controller.

[0011] Optionally, the second drive module includes: a second drive motor; the output end of the second drive motor is connected to the input end of the rotating roller; and the second drive motor is electrically connected to the controller.

[0012] Optionally, a discharge module is also included: the discharge module includes: a discharge roller, a third drive motor, and a third reducer; the discharge roller is rotatably mounted on the mounting frame; the discharge roller is located below the rotating roller, and its inlet faces the outlet of the feeding channel; the third reducer and the third drive motor are both mounted on the side of the mounting frame away from the rotating roller; the output end of the third drive motor is drivenly connected to the input end of the third reducer; the output end of the third reducer is drivenly connected to the input end of the discharge roller; the third drive motor is electrically connected to the controller.

[0013] Optionally, the mounting frame is further provided with a guide roller; the guide roller is located on the side of the discharge roller away from the feeding channel.

[0014] This utility model has a simple overall structure and is easy to install. It adopts a single roller combined with an ultrasonic module to follow the sealing and assembly structure. While ensuring the sealing effect of the diaper waistband, the overall size of the equipment is small and the space occupied is small, which effectively reduces the equipment manufacturing cost. Attached Figure Description

[0015] Figure 1 This is a front view of the present invention during assembly;

[0016] Figure 2This is a schematic diagram of the structure of this utility model during assembly;

[0017] Figure 3 yes Figure 1 Top view;

[0018] Figure 4 This utility model contains a schematic diagram of the sealing module. Detailed Implementation

[0019] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0021] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 As shown, this utility model provides a diaper waistband sealing device, including: a mounting frame 1, several sealing modules 2 for sealing the waistband of the diaper, a transmission module 3 for driving the sealing modules 2 to rotate cyclically, a first drive module 4 for driving the transmission module 3, a rotating roller 7, a second drive module 5 for driving the rotating roller, an ultrasonic module 6, and a control module (not shown in the figure); the rotating roller 7 is rotatably mounted on one side of the mounting frame 1, and its input end is connected to the output end of the second drive module; the transmission module 3... The first drive module 4 is installed on the mounting frame 1 on the side near the rotating roller 7; the first drive module 4 is installed on the mounting frame 1 on the other side away from the rotating roller 7, and its output end passes through the mounting frame 1 and is connected to the input end of the drive module 3; a plurality of sealing modules 2 are installed at equal intervals on the output end of the drive module 3; the ultrasonic module 6 is installed on the rotating roller 7; the ultrasonic module 6, the first drive module 4 and the second drive module 5 are respectively electrically connected to the control module.

[0024] In this embodiment, as Figure 1-3 As shown, the mounting frame 1 is connected and installed on the frame of the diaper processing equipment; the transmission module 3 is located on one side of the rotating roller 7, and cooperates with the rotating roller 7 to form a feeding channel for the diapers to be sealed, the feeding direction of the feeding channel is as follows. Figure 1 As indicated by the arrows, during operation, the control module controls the first drive module 4 and the second drive module 5 to work synchronously. When the first drive module 4 is working, it drives the sealing module 2 to rotate around the rotating roller 7 through the transmission module 3 so as to perform a sealing operation with the waistband of the diaper. Meanwhile, the second drive motor 51 drives the rotating roller 7 to rotate synchronously, causing the ultrasonic module 6 on the rotating roller 7 to rotate as well. This allows the ultrasonic module 6, which rotates as well, to cooperate with the sealing module 2 to achieve the ultrasonic sealing operation of the diaper's waistband. The overall structure is simple and easy to install. It adopts a single roller combined with the ultrasonic module 6 to follow the sealing assembly structure. While ensuring the sealing effect of the diaper's waistband, the overall size of the equipment is small and the space occupied is small, effectively reducing the equipment manufacturing cost.

[0025] Further, the sealing module 2 includes: a fixed plate 21, a plurality of sliding guide rods 22, a plurality of pressure springs 23 adapted to the sliding guide rods 22, and a sealing plate 24; the fixed plate 21 is fixedly connected to the output end of the transmission module 3; one end of each of the plurality of sliding guide rods 22 is slidably connected to the fixed plate 21, and the other end is fixedly connected to the pressure plate; the plurality of pressure springs 23 are correspondingly sleeved on the plurality of sliding guide rods 22 and are located in the gap between the fixed plate 21 and the sealing plate 24; the two ends of the pressure springs 23 are fixedly connected to the sealing plate 24 and the fixed plate 21, respectively.

[0026] In this embodiment, as Figure 1-4 As shown, several sealing modules 2 are fixedly installed at equal intervals on the output end of the transmission module 3 so that, driven by the transmission module 3, they can seal the waistband of the diaper in the feeding channel around the rotating roller 7. The sealing module 2 mainly consists of a fixed plate 21, several sliding guide rods 22, several pressure springs 23 adapted to the sliding guide rods 22, and a sealing plate 24. In this embodiment, the number of sliding guide rods 22 is 2, and the number of pressure springs 23 is also 2, corresponding to the number of sliding guide rods 22. In other embodiments, the number can be increased or decreased according to the actual application. During operation, when the sealing module 2 is driven by the transmission module 3 to feed the diaper through the work station, the sealing plate 24 seals the waistband of the diaper under the elastic force of the two compression springs. The structure is simple and easy to install.

[0027] In this embodiment, as Figure 4 As shown, at least one driving cylinder 25 may also be provided on the fixing plate 21; the cylinder is installed on the fixing plate 21, and its output end passes through the fixing plate 21 and is fixedly connected to the sealing plate 24; the sealing plate 24 is pressed down by the cylinder to realize the sealing operation of the waistband of the diaper.

[0028] Further, the transmission module 3 includes: an arc-shaped limiting frame 31 adapted to the rotating roller 7, a first guide frame 32, a second guide frame 33, a plurality of rotating shafts 34, a plurality of first transmission sprockets 35, a plurality of second transmission sprockets 36, a first transmission chain 37 adapted to the first transmission sprockets 35, and a second transmission chain 38 adapted to the second transmission sprockets 36; the arc-shaped limiting frame 31 is fixedly connected to the mounting frame 1 and is arranged in a semi-enclosed state on one side of the rotating roller 7; the arc-shaped limiting frame and the rotating roller 7 cooperate to form a paper feeding mechanism. The diaper passes through a feeding channel; the first guide frame 32 is installed on the mounting frame 1 at an upward angle from right to left; the second guide frame 33 is installed on the mounting frame 1 at a downward angle from right to left; the first guide frame 32 and the second guide frame 33 cooperate to form a figure-eight structure frame in a sideways position, and are located on the side of the arc-shaped limiting frame 31 away from the rotating roller 7; a plurality of rotating shafts 34 are rotatably installed on the mounting frame 1 on the side near the rotating roller 7; a plurality of first transmission sprockets 35 are respectively installed one-to-one on the plurality of rotating shafts 34. On one end near the mounting bracket 1; a plurality of second transmission sprockets 36 are respectively and correspondingly mounted on the ends of a plurality of rotating shafts 34 away from the mounting bracket 1; a first transmission chain 37 is wound around a plurality of first transmission sprockets 35; a second transmission chain 38 is wound around a plurality of second transmission sprockets 36; the first transmission chain 37 and the second transmission chain 38 are parallel to each other; a plurality of fixing plates 21 are equidistantly disposed in the gap between the first transmission chain 37 and the second transmission chain 38, and their ends are respectively connected to the first transmission chain and the second transmission chain 38. The second transmission chain 38 is fixedly connected; the inner sides of the first transmission chain 37 and the second transmission chain 38 are respectively attached to the side of the first guide frame 32 and the second guide frame 33 away from the arc-shaped limiting frame; the outer sides of the first transmission chain 37 and the second transmission chain 38 are respectively attached to the side of the arc-shaped limiting frame away from the rotating roller 7; the first guide frame 32, the second guide frame 33 and the arc-shaped limiting frame are all provided with movable channels for the passage of a plurality of sealing modules 2; the input end of any of the rotating shafts 34 is electrically connected to the first drive module 4.

[0029] In this embodiment, as Figure 1-3 As shown, the first guide frame 32, the second guide frame 33, and the arc-shaped limiting frame work together to form the loop trajectory of the two transmission chains, which is the running trajectory of the sealing module 2. During operation, the control module controls the drive module to work, and the drive module drives the transmission gear to rotate. During the rotation of the transmission gear, the two transmission chains are driven to pass through, which in turn drives the sealing module 2 on the transmission chain to follow the rotating roller 7 to rotate synchronously, so as to perform the sealing operation. The structure is stable and easy to install.

[0030] Furthermore, the first drive module 4 includes: a first drive motor 41 and a first reducer; the first drive motor 41 and the first reducer are respectively installed on the side of the mounting frame 1 away from the rotating roller 7; the output end of the first drive motor 41 is drivenly connected to the first reducer; the output end of the first reducer is drivenly connected to the input end of any of the rotating shafts 34; the first drive motor 41 is electrically connected to the control module; in this embodiment, the first drive motor 41 is a servo motor, and the use of a servo motor can effectively ensure the operating accuracy of the equipment.

[0031] Furthermore, the control module includes an electrical box and a controller; the controller is installed inside the electrical box; the controller is electrically connected to the first drive motor 41, the second drive module 5 and the ultrasonic module 6 respectively; specifically, the controller can be a microcontroller, MCU, PLC or other controller that controls the orderly operation of various electrical components, and an MCU is selected in this embodiment.

[0032] Furthermore, the ultrasonic module 6 includes: a plurality of ultrasonic generators 61; the plurality of ultrasonic generators 61 are equidistantly installed inside the rotating roller 7; the outer wall of the rotating roller 7 has a plurality of square holes 8 corresponding one-to-one with the plurality of ultrasonic generators 61; the distance between two adjacent square holes 8 is the same as the distance between two adjacent sealing plates 24; the plurality of ultrasonic generators 61 are respectively electrically connected to the controller.

[0033] In this embodiment, as Figure 1-3 As shown, the ultrasonic generator 61 uses a mature technology product available on the market, which is existing technology and will not be described in detail here. Several ultrasonic generators 61 are installed inside the rotating roller 7, and the distance between the output ends of adjacent ultrasonic generators 61 is the same as the distance between two adjacent sealing modules 2 on the transmission chain, so that the rotating roller 7 drives the ultrasonic generators 61 to synchronously follow the sealing module 2 to perform ultrasonic sealing operation on the waistband of the diaper.

[0034] Furthermore, the second drive module 5 includes: a second drive motor 51; the output end of the second drive motor 51 is connected to the input end of the rotating roller 7; the second drive motor 51 is electrically connected to the controller; specifically, the second drive motor 51 is also a servo motor to ensure the operating accuracy of the equipment.

[0035] Furthermore, it also includes a discharge module 9: the discharge module 9 includes: a discharge roller 91, a third drive motor 92, and a third reducer 93; the discharge roller 91 is rotatably mounted on the mounting frame 1; the discharge roller 91 is located below the rotating roller 7, and its inlet faces the outlet of the feeding channel; the third reducer 93 and the third drive motor 92 are both mounted on the side of the mounting frame 1 away from the rotating roller 7; the output end of the third drive motor 92 is drivenly connected to the input end of the third reducer 93; the output end of the third reducer 93 is drivenly connected to the input end of the discharge roller 91; the third drive motor 92 is electrically connected to the controller; a guide roller 10 is also provided on the mounting frame 1; the guide roller 10 is located on the side of the discharge roller 91 away from the feeding channel.

[0036] In this embodiment, as Figure 1-3 As shown, the discharge module 9 and the guide roller 10 mainly perform the function of discharging and guiding the diapers that have completed the waistband sealing operation to be arranged and conveyed out in an orderly manner.

[0037] This utility model discloses a diaper waistband sealing device with a simple overall structure and convenient installation. It adopts a single roller combined with an ultrasonic module 6 for sealing and assembly. While ensuring the sealing effect of the diaper waistband, the device has a small overall size and small footprint, effectively reducing the manufacturing cost of the equipment.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A diaper waistband sealing device, characterized in that, include: The device comprises an mounting frame, several sealing modules for sealing the waistband of the diaper, a transmission module for driving the sealing modules to rotate cyclically, a first drive module for driving the transmission module, a rotating roller, a second drive module for driving the rotating roller, an ultrasonic module, and a control module. The rotating roller is rotatably mounted on one side of the mounting frame, and its input end is drively connected to the output end of the second drive module. The transmission module is mounted on the mounting frame near the rotating roller. The first drive module is mounted on the mounting frame away from the rotating roller, and its output end passes through the mounting frame and is drively connected to the input end of the transmission module. Several sealing modules are equidistantly mounted at the output end of the transmission module. The ultrasonic module is mounted on the rotating roller. The ultrasonic module, the first drive module, and the second drive module are respectively electrically connected to the control module.

2. The diaper waistband sealing device according to claim 1, characterized in that, The sealing module includes: a fixed plate, a plurality of sliding guide rods, a plurality of pressure springs adapted to the sliding guide rods, and a sealing plate; the fixed plate is fixedly connected to the output end of the transmission module; one end of each of the plurality of sliding guide rods is slidably connected to the fixed plate, and the other end is fixedly connected to the pressure plate; the plurality of pressure springs are correspondingly sleeved on the plurality of sliding guide rods and are located in the gap between the fixed plate and the sealing plate; the two ends of the pressure springs are fixedly connected to the sealing plate and the fixed plate, respectively.

3. The diaper waistband sealing device according to claim 2, characterized in that, Also includes: At least one drive cylinder; The cylinder is mounted on the fixed plate, and its output end passes through the fixed plate and is fixedly connected to the sealing plate.

4. The diaper waistband sealing device according to claim 2, characterized in that, The transmission module includes: an arc-shaped limiting frame adapted to the rotating roller, a first guide frame, a second guide frame, several rotating shafts, several first transmission sprockets, several second transmission sprockets, a first transmission chain adapted to the first transmission sprockets, and a second transmission chain adapted to the second transmission sprockets; the arc-shaped limiting frame is fixedly connected to the mounting frame and is arranged in a semi-enclosed state on one side of the rotating roller; the arc-shaped limiting frame and the rotating roller cooperate to form a feeding channel for diapers to pass through; the first guide frame is installed on the mounting frame at an upward inclination from right to left; the second guide frame is installed on the mounting frame at a downward inclination from right to left; the first guide frame and the second guide frame cooperate to form a figure-eight structure frame in a sideways state, and is located on the side of the arc-shaped limiting frame away from the rotating roller; Each of the aforementioned rotating shafts is rotatably mounted on the mounting frame near the rotating roller; a plurality of first transmission sprockets are respectively mounted one-to-one on the ends of the aforementioned rotating shafts near the mounting frame; a plurality of second transmission sprockets are respectively mounted one-to-one on the ends of the aforementioned rotating shafts away from the mounting frame; a first transmission chain is wound around the plurality of first transmission sprockets; a second transmission chain is wound around the plurality of second transmission sprockets; the first transmission chain and the second transmission chain are parallel to each other; a plurality of fixed plates are equidistantly disposed within the gap between the first transmission chain and the second transmission chain, and their two ends are respectively fixedly connected to the first transmission chain and the second transmission chain; the inner sides of the first transmission chain and the second transmission chain are respectively in contact with the sides of the first guide frame and the second guide frame away from the arc-shaped limiting frame; the outer sides of the first transmission chain and the second transmission chain are respectively in contact with the sides of the arc-shaped limiting frame away from the rotating roller; the first guide frame, the second guide frame, and the arc-shaped limiting frame are all provided with movable channels for the plurality of sealing modules to pass through; the input end of any of the rotating shafts is electrically connected to the first drive module.

5. The diaper waistband sealing device according to claim 4, characterized in that, The first drive module includes: a first drive motor and a first reducer; the first drive motor and the first reducer are respectively mounted on the side of the mounting frame away from the rotating roller; the output end of the first drive motor is drivenly connected to the first reducer; the output end of the first reducer is drivenly connected to the input end of any of the rotating shafts; the first drive motor is electrically connected to the control module.

6. The diaper waistband sealing device according to claim 5, characterized in that, The control module includes an electrical box and a controller; the controller is installed inside the electrical box; the controller is electrically connected to the first drive motor, the second drive module and the ultrasonic module respectively.

7. A diaper waistband sealing device according to claim 6, characterized in that, The ultrasonic module includes: a plurality of ultrasonic generators; the plurality of ultrasonic generators are equidistantly installed inside the rotating roller; the outer wall of the rotating roller has a plurality of square holes corresponding one-to-one with the plurality of ultrasonic generators; the distance between two adjacent square holes is the same as the distance between two adjacent sealing plates; the plurality of ultrasonic generators are respectively electrically connected to the controller.

8. The diaper waistband sealing device according to claim 7, characterized in that, The second drive module includes: a second drive motor; the output end of the second drive motor is connected to the input end of the rotating roller; the second drive motor is electrically connected to the controller.

9. A diaper waistband sealing device according to claim 6, characterized in that, It also includes a discharge module: the discharge module includes a discharge roller, a third drive motor, and a third reducer; the discharge roller is rotatably mounted on the mounting frame; the discharge roller is located below the rotating roller, and its inlet faces the outlet of the feeding channel; the third reducer and the third drive motor are both mounted on the side of the mounting frame away from the rotating roller; the output end of the third drive motor is drive-connected to the input end of the third reducer; the output end of the third reducer is drive-connected to the input end of the discharge roller; the third drive motor is electrically connected to the controller.

10. A diaper waistband sealing device according to claim 9, characterized in that, The mounting frame is also equipped with a guide roller; the guide roller is located on the side of the discharge roller away from the feeding channel.

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