Ultrasonic processing device and processing method for sanitary products

Abstract

The present invention discloses an ultrasonic processing device and a processing method for sanitary products. Continuous products are fed into a rotating body, which rotates with the rotating body. During the rotation, the products are adsorbed by the negative pressure adsorption structure on the rotating body, and at the same time, the products are pressed on the surface of the negative pressure box by a pressing mechanism to be positioned. An ultrasonic welding vibrator is located below the product, and an ultrasonic welding roller and a cutting roller are arranged front and back along the axis of the rotating body. The ultrasonic welding roller and the cutting roller reciprocate along the axis of the rotating body, thereby achieving product welding and slitting. After the product slitting is completed, the pressing mechanism is lifted and the process is transferred to the next step. The product welding and cutting are performed in a composite manner, avoiding phase shift during welding before transporting to the cutting station. At the same time, ultrasonic cutting also has the effect of sealing the fracture edge at the cutting position of the material, which can improve the appearance of the product and the consistency of product quality.

Description

Technical Field

[0001] The present invention relates to the technical field of sanitary product processing, in particular to a sanitary product ultrasonic processing device and a processing method thereof. Background Art

[0002] Currently, the production of disposable sanitary products is mostly automated production lines; however, in existing sanitary product production lines, product welding and cutting are divided into two independent processes. The welding operation is performed first, and after welding is completed, the product is transported to the cutting station for cutting operation. Phase shift is prone to occur during the product transportation process, which leads to phase shift of the product cutting and poor product appearance. At the same time, the existing cutting adopts a straight cutting knife pressure cutting method, and there is no edge sealing at the cutting position, which affects the appearance quality of the product. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the technical problem to be solved by the present invention is to provide an ultrasonic processing device and a processing method for sanitary products, in which the product welding and cutting are carried out in a composite manner to avoid phase shift during welding and then transporting to the cutting station.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] An ultrasonic processing device for sanitary products, comprising:

[0006] Support frame;

[0007] A rotator is rotatably mounted on the support frame;

[0008] Negative pressure adsorption structure, which is arranged on the outer edge of the rotating body and is used to adsorb the processed sanitary products on the outer edge of the rotating body;

[0009] The welding and cutting compound mechanism is arranged on the outer edge of the rotating body and can reciprocate along the rotating axis to weld and cut the products.

[0010] It also includes a product pressing mechanism for pressing the processed sanitary products into position, and the product pressing mechanism is arranged on the outer edge of the rotating body.

[0011] The support frame is a support frame, and the rotating body is arranged in the support frame through a rotating shaft.

[0012] The support frame is provided with a driving structure for driving the rotating body to rotate.

[0013] The negative pressure adsorption structure and the welding and cutting composite mechanism are both a group, and the negative pressure adsorption structure and the welding and cutting composite mechanism are evenly spaced.

[0014] The welding and cutting composite mechanism includes an axially movable structure, an ultrasonic welding vibrator, and an ultrasonic welding roller and an ultrasonic cutting roller arranged corresponding to the ultrasonic welding vibrator. The axially movable structure and the ultrasonic welding vibrator are both arranged on the outer edge of the rotating body, and the ultrasonic welding roller and the ultrasonic cutting roller are both arranged on the axially movable structure.

[0015] The negative pressure adsorption structure includes a connected negative pressure adsorption box and an adsorption box mounting plate. A group of adsorption holes are provided on the outer surface of the negative pressure adsorption box, and the adsorption box mounting plate is arranged on the outer edge of the rotating body.

[0016] The adsorption box mounting plate is arranged on the rotating body and can be raised and lowered and adjusted along the radial direction of the rotating body.

[0017] The product pressing mechanism is arranged corresponding to the negative pressure adsorption structure.

[0018] The product pressing mechanism includes a product pressing swing arm for pressing the product on the outer surface of the negative pressure adsorption box and a swing arm driving structure for driving the swing arm to swing.

[0019] An extended light panel is provided on the side of the negative pressure adsorption box, and the pressing swing arm is arranged corresponding to the extended light panel.

[0020] The pressing side of the pressing swing arm is provided with a rubber strip.

[0021] The swing arm driving structure includes a pressing mechanism support plate and a movable component that can move along the axis of the rotating body. The pressing mechanism support plate is arranged on the rotating body. The product pressing swing arm is hinged to the pressing mechanism support plate through a bracket. One end of the product pressing swing arm is the pressing end, and the other end of the product pressing swing arm is hingedly connected to the movable component.

[0022] The moving assembly includes a moving body and a roller arranged on the moving body. The moving body is arranged on the pressing mechanism support plate through a slide rail. A circle of arc-shaped cam grooves is provided on the outer edge of the rotating body, and the rollers are located in the arc-shaped cam grooves.

[0023] The product pressing mechanism is a group arranged corresponding to the negative pressure adsorption structure, and the product pressing mechanism and the welding and cutting composite mechanism are arranged at intervals along the circumference of the rotating body.

[0024] The ultrasonic welding vibrator is arranged between two adjacent negative pressure adsorption structures.

[0025] The ultrasonic welding roller and the ultrasonic cutting roller are arranged side by side along the axis direction of the rotating body.

[0026] The surface of the ultrasonic welding roller is provided with patterns or convex-concave structures.

[0027] A pressure regulating arm and a pressure cylinder are provided on the axial movable structure. The pressure regulating arm is hinged on the axial movable structure. One end of the pressure regulating arm is hingedly connected to the pressure cylinder. The ultrasonic welding roller and the ultrasonic cutting roller are both provided on the other end of the pressure regulating arm.

[0028] A cutting pressure control cylinder is provided on the other end of the pressure regulating arm, and the ultrasonic cutting roller is provided on the cutting pressure control cylinder.

[0029] A composite mechanism support plate is provided on the rotating body, and the axial movable structure is provided on the composite mechanism support plate through a movable pair that can move axially along the rotating body. A roller is provided on the axial movable structure, and a circle of arc-shaped cam grooves that cooperate with the roller are provided on the outer edge of the rotating body.

[0030] A method for ultrasonic processing of sanitary products, comprising the following steps:

[0031] 1) Continuous products are fed into the rotor, and the products rotate with the rotor; during the rotation process, the products are adsorbed by the negative pressure adsorption structure on the rotor, and at the same time, the products are pressed by the pressing mechanism on the surface of the negative pressure box to position them;

[0032] 2) The ultrasonic welding vibrator is located below the product, and the ultrasonic welding roller and cutting roller are arranged front and back along the axis of the rotating body. The ultrasonic welding roller and cutting roller reciprocate in the direction of the rotating axis, and the product is welded and cut in this process;

[0033] 3) After the product is cut, the pressing mechanism is lifted and transferred to the next process.

[0034] in,

[0035] In step 2), the ultrasonic welding roller performs the welding action first, and the ultrasonic cutting roller is located behind the welding roller and performs the cutting action.

[0036] Compared with the prior art, the present invention has the following advantages:

[0037] The ultrasonic processing device and processing method of sanitary products are uniquely designed. The product welding and cutting are carried out in a composite manner, avoiding phase shift during product transportation due to welding first and then cutting, thereby avoiding phase shift in product cutting and improving product appearance quality and consistency. At the same time, ultrasonic cutting requires less cutting force than the existing straight cutter pressure cutting method, and has the effect of sealing the fracture edge at the cutting position of the material, which can improve the appearance quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The following is a brief description of the contents and symbols in the drawings of this specification:

[0039] Figure 1 It is a three-dimensional schematic diagram of the device of the present invention.

[0040] Figure 2 It is a schematic diagram of the processing flow of the present invention.

[0041] Figure 3 It is a side schematic diagram of the device of the present invention.

[0042] Figure 4 This is a schematic diagram of the processing action planning of the present invention.

[0043] Figure 5 It is a schematic diagram of the welding and cutting composite mechanism of the present invention.

[0044] Figure 6 Schematic diagram of the negative pressure adsorption box of the present invention.

[0045] Figure 7 Schematic diagram of the pressing swing arm mechanism of the present invention.

[0046] Figure 8 Schematic diagram of the pressing action of the present invention.

[0047] Figure 9 Schematic diagram of the rotary wheel in the device of the present invention.

[0048] In the picture:

[0049] 1. Support frame, 2. Rotating body, 201. Rotating cam, 3. Negative pressure adsorption structure, 301. Negative pressure adsorption box, 302. Adsorption box mounting plate, 4. Ultrasonic welding vibrator,

[0050] 5. Welding and cutting composite mechanism, 501. Ultrasonic welding roller, 502. Ultrasonic cutting roller, 503. Moving pair, 504. Pressure cylinder, 505. Pressure adjustment arm, 506. Cutting pressure control cylinder, 507. Composite mechanism support plate,

[0051] 6. Product pressing mechanism, 601. Pressing swing arm, 602. Connecting rod, 603. Moving body, 604. Pressing mechanism support plate, 605. Slide rail, 606. Roller. DETAILED DESCRIPTION

[0052] The specific implementation of the present invention will be further explained in detail below through description of embodiments with reference to the accompanying drawings.

[0053] like Figures 1 to 9 As shown, the ultrasonic processing device for sanitary products includes a support frame, a rotating body 2, a negative pressure adsorption structure 3, a welding and cutting composite mechanism 5 and a product pressing mechanism 6.

[0054] The rotator is rotatably mounted on a support frame, which is a square support frame 1 with high structural strength. The rotator is mounted within the support frame via a rotating shaft. The support frame is provided with a drive structure for driving the rotator, which can be a drive motor. The square support frame is provided with lifting lugs for easy handling.

[0055] The negative pressure adsorption structure is used to adsorb the processed sanitary products on the outer edge of the rotating body; the negative pressure adsorption structure is arranged on the outer edge of the rotating body, and the adsorption structure can rotate with the rotating body.

[0056] The negative pressure adsorption structure includes a connected negative pressure adsorption box 301 and an adsorption box mounting plate 302. A group of adsorption holes that are connected to the interior of the adsorption box are provided on the outer surface of the negative pressure adsorption box, and the product is adsorbed on the surface of the negative pressure adsorption box through negative pressure; the adsorption box mounting plate is provided on the outer edge of the rotating body; further, the adsorption box mounting plate 302 can be adjusted to rise and fall along the radial direction of the rotating body and is provided on the rotating body. The adsorption box mounting plate is provided with a group of locking holes along the radial direction of the rotating body. The position of the adsorption box can be adjusted by selecting different locking holes to adapt to products of different sizes.

[0057] The combined welding and cutting mechanism 5, located on the outer edge of the rotor, reciprocates along the axis of rotation to weld and cut the product. It comprises an ultrasonic welding roller 501 and an ultrasonic cutting roller 502, arranged in a tandem arrangement along the rotor's axis. The ultrasonic welding roller performs the welding operation first, followed by the ultrasonic cutting roller, located behind the welding roller, which completes the slitting operation. This prevents phase shifts during product transport, thereby minimizing product slitting phase shifts and improving product appearance quality and consistency.

[0058] The product pressing mechanism 6 is used to press and position the processed sanitary products. The product pressing mechanism is arranged on the outer edge of the rotating body and can rotate with the rotating body. The product pressing mechanism is arranged corresponding to the negative pressure adsorption structure.

[0059] The negative pressure adsorption structure and the welding and cutting composite mechanism are both a group, and the negative pressure adsorption structure and the welding and cutting composite mechanism are evenly spaced.

[0060] The product pressing mechanism is a group arranged corresponding to the negative pressure adsorption structure, and the product pressing mechanism and the welding and cutting composite mechanism are arranged at intervals along the circumference of the rotating body.

[0061] Extended light panels are located on both sides of the negative pressure adsorption box. The pressing mechanism's pressing arms correspond to these panels. The pressing arms 601 press the product onto the panels on either side of the adsorption box, ensuring proper positioning for welding and cutting. Furthermore, rubber strips are installed on the pressing side of the pressing arms to prevent indentations on the product and maintain its appearance.

[0062] The welding and cutting composite mechanism includes an axial moving structure, an ultrasonic welding vibrator 4, and ultrasonic welding rollers and ultrasonic cutting rollers corresponding to the ultrasonic welding vibrator. The axial moving structure and the ultrasonic welding vibrator are both arranged on the outer edge of the rotating body, and the ultrasonic welding rollers and ultrasonic cutting rollers are both arranged on the axial moving structure.

[0063] The ultrasonic welding vibrator is arranged between two adjacent negative pressure adsorption structures; the ultrasonic welding roller and the ultrasonic cutting roller are arranged side by side along the axis of the rotating body; the surface of the ultrasonic welding roller is provided with patterns or convex and concave structures, which can be welded and pressed into a specific shape.

[0064] A pressure regulating arm 505 and a pressure cylinder 504 are provided on the axial movable structure. The pressure regulating arm is hinged on the axial movable structure. One end of the pressure regulating arm is hingedly connected to the pressure cylinder. The ultrasonic welding roller and the ultrasonic cutting roller are both provided on the other end of the pressure regulating arm. The pressure of the welding roller is adjusted by the pressure cylinder, thereby adjusting the welding force.

[0065] A cutting pressure control cylinder 506 is provided on the other end of the pressure regulating arm. The ultrasonic cutting roller is provided on the cutting pressure control cylinder. The cutting force of the ultrasonic cutting roller is adjusted by the control cylinder.

[0066] The axial moving structure includes a moving plate and a driving cylinder that drives the moving plate to move along the rotating axis. The moving plate is arranged on the outer edge of the rotating body through a slide rail that moves along the rotating body axis. The pressure regulating arm and the pressure cylinder are arranged on the moving plate.

[0067] Alternatively, a composite mechanism support plate 507 is provided on the rotating body, and the axially movable structure is provided on the composite mechanism support plate through a movable pair 503 that can move axially along the rotating body. A roller is provided on the axially movable structure, and a circle of arc-shaped cam grooves that cooperate with the roller is provided on the outer edge of the rotating body. The axially movable structure is driven to reciprocate along the axial direction through the rotational motion. The structure is compact and is an optimal solution.

[0068] The product pressing mechanism 6 includes a product pressing swing arm 601 for pressing the product on the outer surface of the negative pressure adsorption box and a swing arm driving structure for driving the swing arm to swing.

[0069] Preferably, the swing arm driving structure includes a pressing mechanism support plate 604 and a moving component that can move along the axis direction of the rotating body. The pressing mechanism support plate is arranged on the rotating body, and the product pressing swing arm 601 is hinged to the pressing mechanism support plate through a bracket. One end of the product pressing swing arm is a pressing end, and the other end of the product pressing swing arm is hingedly connected to the moving component; the moving component includes a moving body 603 and a roller 606 provided on the moving body. The moving body is provided on the pressing mechanism support plate through a slide rail 605. The moving body and the other end of the product pressing swing arm are connected through a hinged connecting rod 602. A circle of arc-shaped cam grooves is provided on the outer edge of the rotating cam 201 of the rotating body, and the roller is located in the arc-shaped cam groove; the moving component is driven to reciprocate along the axis direction by driving the roller, thereby driving the swing arm to perform reciprocating swing, thereby realizing the pressing action on the product.

[0070] The ultrasonic processing method for sanitary products comprises the following steps:

[0071] 1) Continuous products are fed into the rotor, and the products rotate with the rotor; during the rotation process, the products are adsorbed by the negative pressure adsorption structure on the rotor, and at the same time, the products are pressed by the pressing mechanism on the surface of the negative pressure box to position them;

[0072] 2) The ultrasonic welding vibrator is located below the product, and the ultrasonic welding roller and cutting roller are arranged front and back along the axis of the rotating body. The ultrasonic welding roller and cutting roller reciprocate in the direction of the rotating axis, and the product is welded and cut in this process;

[0073] 3) After the product is cut, the pressing mechanism is lifted and transferred to the next process.

[0074] Among them, in step 2), the ultrasonic welding roller performs the welding action first, and the ultrasonic cutting roller is located behind the welding roller and completes the cutting action.

[0075] In the present invention, the welding and cutting of the product are carried out in a composite manner, which avoids phase shift during welding and then conveying to the cutting station. At the same time, ultrasonic cutting also has the effect of sealing the fracture at the cutting position of the material, which can improve the appearance of the product and the consistency of product quality.

[0076] Preferred specific examples are:

[0077] The present invention adopts a composite processing method of ultrasonic welding and ultrasonic cutting, which improves the integration of the process, simplifies the process steps, and is conducive to ensuring the accuracy of the product cutting phase.

[0078] The device includes a rotary support frame, a rotary body, a negative pressure adsorption box, a welding actuator, a cutting actuator, and a pressing actuator; wherein the negative pressure adsorption box, the welding actuator, the cutting actuator, and the pressing actuator are arranged on the rotary body and rotate with the rotary body.

[0079] The ultrasonic cutting actuator is mounted on the welding actuator and reciprocates along the device's rotational axis. The welding and cutting forces of both the ultrasonic welding and cutting actuators are adjustable, with the preferred adjustment being based on the air source pressure. The ultrasonic welding and cutting mechanisms, along with the product pressing actuators, are arranged in equal numbers and alternately around the circumference of the rotating body.

[0080] The surface of the ultrasonic welding wheel is distributed with patterns arranged in a certain shape. Driven by the reciprocating motion of the welding actuator, the welding wheel rolls purely on the surface of the ultrasonic welding head and presses out a welding pattern of a certain shape on the surface of the material; the ultrasonic cutting wheel has a sharp outer circumference. The cutting wheel follows behind the welding wheel to cut the area where the welding is completed.

[0081] The ultrasonic power supply device controls the start and stop of the ultrasonic vibrator. When the ultrasonic welding wheel is in the forward state, the ultrasonic vibrator is in the vibrating state, and in the stopped state at other times. The negative pressure adsorption box, ultrasonic vibrator, and pressing actuator are all designed to be liftable in the radial direction of the rotating body, and can adapt to the production of products of different lengths through lifting operations. The objects being processed are disposable absorbent sanitary products, including baby pull-up pants, women's menstrual pants and other sanitary products.

[0082] The product pressing action adopts a reciprocating swing form with a swing angle of 90 degrees; the product pressing action mechanism includes a cam body, a moving body, a connecting rod and a swing arm. The moving body rotates around the cam body and reciprocates in the direction of the rotation axis under the action of the cam body, thereby driving the swing arm to perform reciprocating swing under the action of the connecting rod to realize the pressing action of the product.

[0083] Continuous products are fed into a rotating body, and the products rotate with the rotating body; during the rotation process, the products are adsorbed by the negative pressure box of the rotating device body, and at the same time, the two sides of the products are pressed against the surface of the negative pressure box by the pressing mechanism; the ultrasonic vibrator is located under the product, and the ultrasonic welding roller and the cutting roller are arranged in front and back, and reciprocate in the direction of the rotating axis of the device, realizing the welding and cutting of the products in this process; specifically, after the product is introduced into the rotating body, the pressing actuator first acts to press the product on the surface of the negative pressure box, and then the welding actuator moves in the direction of the rotating body axis to perform the welding action, and the cutting actuator follows the welding actuator to cut the welded parts; after the product cutting is completed, the pressing mechanism is lifted, and the discrete single-piece products are transferred to the next process through the negative pressure transfer roller.

[0084] Compared with the existing ultrasonic welding process, the present invention utilizes the advantages of ultrasound in the cutting field and combines the product slitting function on the ultrasonic welding device to realize the slitting process on the product immediately after the welding operation is completed; the combination of welding and cutting processes avoids welding first and then cutting, which causes phase shift during the product transportation process, thereby causing phase shift in product slitting and poor product appearance; at the same time, ultrasonic cutting requires less cutting force than the existing straight knife pressure cutting method, and also has the effect of sealing the fracture at the cutting position of the material, which can improve the appearance of the product.

[0085] The above is only an illustration of a preferred embodiment of the present invention. The above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0086] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. An ultrasonic processing device for sanitary products, characterized in that: include: Support frame; A rotator is rotatably mounted on the support frame; Negative pressure adsorption structure, which is arranged on the outer edge of the rotating body and is used to adsorb the processed sanitary products on the outer edge of the rotating body; The welding and cutting compound mechanism is arranged on the outer edge of the rotating body and can reciprocate along the rotating axis to weld and cut the product; wherein, The welding and cutting composite mechanism includes an axially movable structure, an ultrasonic welding vibrator, and an ultrasonic welding roller and an ultrasonic cutting roller corresponding to the ultrasonic welding vibrator. The axially movable structure and the ultrasonic welding vibrator are both arranged on the outer edge of the rotating body, and the ultrasonic welding roller and the ultrasonic cutting roller are both arranged on the axially movable structure. The ultrasonic welding roller and the ultrasonic cutting roller are arranged side by side along the axis of the rotating body. The axial movable structure is provided with a pressure regulating arm and a pressure cylinder, the pressure regulating arm is hinged on the axial movable structure, one end of the pressure regulating arm is hingedly connected to the pressure cylinder, and the ultrasonic welding roller and the ultrasonic cutting roller are both provided on the other end of the pressure regulating arm; the other end of the pressure regulating arm is provided with a cutting pressure control cylinder, and the ultrasonic cutting roller is provided on the cutting pressure control cylinder; A composite mechanism support plate is provided on the rotating body, and the axial movable structure is provided on the composite mechanism support plate through a movable pair that can move axially along the rotating body. A roller is provided on the axial movable structure, and a circle of arc-shaped cam grooves that cooperate with the roller are provided on the outer edge of the rotating body.

2. The ultrasonic processing device for sanitary products according to claim 1, characterized in that: It also includes a product pressing mechanism for pressing the processed sanitary products into position, and the product pressing mechanism is arranged on the outer edge of the rotating body.

3. The ultrasonic processing device for sanitary products according to claim 1, characterized in that: The support frame is a support frame, and the rotating body is arranged in the support frame through a rotating shaft.

4. The ultrasonic processing device for sanitary products according to claim 1, characterized in that: The support frame is provided with a driving structure for driving the rotating body to rotate.

5. The ultrasonic processing device for sanitary products according to claim 2, characterized in that: The negative pressure adsorption structure and the welding and cutting composite mechanism are both a group, and the negative pressure adsorption structure and the welding and cutting composite mechanism are evenly spaced.

6. The ultrasonic processing device for sanitary products according to claim 2, characterized in that: The negative pressure adsorption structure includes a connected negative pressure adsorption box and an adsorption box mounting plate. A group of adsorption holes are provided on the outer surface of the negative pressure adsorption box, and the adsorption box mounting plate is arranged on the outer edge of the rotating body.

7. The ultrasonic processing device for sanitary products according to claim 6, characterized in that: The adsorption box mounting plate is arranged on the rotating body and can be raised and lowered and adjusted along the radial direction of the rotating body.

8. The ultrasonic processing device for sanitary products according to claim 2 or 6, characterized in that: The product pressing mechanism is arranged corresponding to the negative pressure adsorption structure.

9. The ultrasonic processing device for sanitary products according to claim 6, characterized in that: The product pressing mechanism includes a product pressing swing arm for pressing the product on the outer surface of the negative pressure adsorption box and a swing arm driving structure for driving the swing arm to swing.

10. The ultrasonic processing device for sanitary products according to claim 9, characterized in that: An extended light panel is provided on the side of the negative pressure adsorption box, and the pressing swing arm is arranged corresponding to the extended light panel.

11. The ultrasonic processing device for sanitary products according to claim 9, characterized in that: The pressing side of the pressing swing arm is provided with a rubber strip.

12. The ultrasonic processing device for sanitary products according to claim 9, characterized in that: The swing arm driving structure includes a pressing mechanism support plate and a movable component that can move along the axis of the rotating body. The pressing mechanism support plate is arranged on the rotating body. The product pressing swing arm is hinged to the pressing mechanism support plate through a bracket. One end of the product pressing swing arm is the pressing end, and the other end of the product pressing swing arm is hingedly connected to the movable component.

13. The ultrasonic processing device for sanitary products according to claim 12, characterized in that: The moving assembly includes a moving body and a roller arranged on the moving body. The moving body is arranged on the pressing mechanism support plate through a slide rail. A circle of arc-shaped cam grooves is provided on the outer edge of the rotating body, and the rollers are located in the arc-shaped cam grooves.

14. The ultrasonic processing device for sanitary products according to claim 5, characterized in that: The product pressing mechanism is a group arranged corresponding to the negative pressure adsorption structure, and the product pressing mechanism and the welding and cutting composite mechanism are arranged at intervals along the circumference of the rotating body.

15. The ultrasonic processing device for sanitary products according to claim 1, characterized in that: The ultrasonic welding vibrator is arranged between two adjacent negative pressure adsorption structures.

16. The ultrasonic processing device for sanitary products according to claim 1, characterized in that: The surface of the ultrasonic welding roller is provided with patterns or convex-concave structures.

17. A method for ultrasonic processing of sanitary products, characterized in that: The ultrasonic processing device according to any one of claims 1 to 16 is used for processing, and the processing method includes the following steps: 1) Continuous products are fed into the rotor, which rotates with it. During the rotation, the products are adsorbed by the negative pressure adsorption structure on the rotor, while at the same time, the products are pressed onto the surface of the negative pressure box by the product pressing mechanism on the outer edge of the rotor to position them. 2) The ultrasonic welding vibrator is located below the product, and the ultrasonic welding roller and cutting roller are arranged front and back along the axis of the rotating body. The ultrasonic welding roller and cutting roller reciprocate in the direction of the rotating axis, and the product is welded and cut in this process; 3) After the product is cut, the product pressing mechanism is lifted and transferred to the next process.

18. The ultrasonic processing method for sanitary products according to claim 17, characterized in that: In step 2), the ultrasonic welding roller performs the welding action first, and the ultrasonic cutting roller is located behind the welding roller and performs the cutting action.

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