Open-close pants overlock device

Abstract

The utility model relates to the field of paper diaper production, in particular to an edge locking device for opening and closing pants. The device comprises an ultrasonic assembly and a die wheel, wherein the ultrasonic assembly is used for generating vibration; the mold wheel comprises a driving wheel and a connecting wheel, one end of the driving wheel is connected with an external rotation driving part, the other end of the driving wheel is arranged on the connecting wheel in a sleeved mode and rotationally connected with the connecting wheel, an air inlet pipe capable of rotating is arranged on one side of the connecting wheel, the side wall of the air inlet pipe is meshed with an inner ring of the driving wheel, and the driving wheel is provided with a processing section which allows the opening and closing trousers to pass through and is provided with ventilation holes. An air inlet is formed in the air inlet pipe, and when the rotary driving wheel drives the air inlet pipe to rotate, the air inlet is intermittently aligned with the ventilation hole. The air inlet pipe is introduced into the driving wheel through the fixed connecting wheel, intermittent ventilation of the surface of the working section is achieved through meshing of the outer wall of the air inlet pipe and the interior of the driving wheel, the adhesion phenomenon of materials after ultrasonic welding is prevented, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of diaper production, and in particular to a diaper locking device. Background Technology

[0002] Open-front panties are a type of feminine hygiene product. They consist of non-woven fabric and an absorbent crotch area, forming a detachable, one-piece menstrual panty. To increase the bonding strength of the open-front panties, ultrasonic welding technology is often used at the edges. Ultrasonic welding uses a high-speed vibrating die head to cause molecular oscillations at the material contact surfaces, generating heat energy. Under pressure, the two materials are then bonded together. During this process, the ultrasonic die head interacts with the die wheel below, which often results in some material sticking to the die wheel after high-speed vibration, affecting the assembly line processing of the open-front panties. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a trouser edge locking device with the advantages of anti-sticking and good separation effect.

[0004] This utility model provides a hemming device for trousers, including an ultrasonic component and a mold wheel. The ultrasonic component is used to generate vibration and is mounted above the mold wheel and can be raised and lowered to contact the mold wheel. The mold wheel includes a drive wheel and a connecting wheel. One end of the drive wheel is connected to an external rotating drive component, and the other end of the drive wheel is sleeved on the connecting wheel and rotatably connected to it. One side of the connecting wheel is provided with a self-rotating air inlet pipe. The side wall of the air inlet pipe meshes with the inner ring of the drive wheel and one end is connected to an external air inlet device. The drive wheel is provided with a processing section through which the trousers can pass. The processing section is provided with ventilation holes. The air inlet pipe is provided with an air inlet at a position corresponding to the ventilation hole. When the drive wheel is rotated to drive the air inlet pipe to rotate, the air inlet and the ventilation hole are intermittently aligned.

[0005] Furthermore, the ventilation hole is located on the left and right sides of the processing section, and the processing section is provided with a V-shaped guide groove at the corresponding position of the ventilation hole.

[0006] Furthermore, a balance tube is provided on one side of the connecting wheel, which connects the inner ring of the drive wheel to the outside atmosphere.

[0007] Furthermore, the ultrasonic component includes a lifting assembly, an ultrasonic generator, and a mold head. The lifting assembly includes a lifting rod and a lifting drive component. The lifting drive component is connected to the top of the lifting rod and drives it to move up and down reciprocally. The ultrasonic generator is located on one side of the lifting rod and connected to it. The mold head is connected to the ultrasonic generator and vibrates under its drive.

[0008] Furthermore, the ultrasonic component also includes an upper auxiliary frame and a lower auxiliary frame. The upper auxiliary frame is used to fix the lifting component, the lower auxiliary frame is slidably connected to the upper auxiliary frame, and the mold head is connected to the bottom of the lower auxiliary frame.

[0009] By adopting the above technical solution, the beneficial effects of this utility model are:

[0010] This invention introduces an air inlet pipe into the drive wheel by setting a fixed connecting wheel. The outer wall of the air inlet pipe meshes with the inside of the drive wheel. During the rotation of the drive wheel, the air inlet pipe is driven to rotate, thereby intermittently aligning the ventilation holes on the drive wheel with the air inlet. This ensures that the ventilation holes do not ventilate when the die head is working, but ventilate to the bottom of the opening and closing pants after the die head is not working, causing the opening and closing pants material to separate from the drive wheel. This prevents the material from sticking together after ultrasonic welding and improves processing efficiency.

[0011] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0012] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.

[0013] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0017] Figure 1 This is a perspective view of the side structure of a trouser hemming device according to the present invention;

[0018] Figure 2 This is a partial structural schematic diagram of a trouser hemming device according to the present invention;

[0019] Figure 3 This is a schematic diagram of the mold wheel structure of a trouser hemming device according to the present invention;

[0020] Figure 4 This is an exploded view of the mold wheel structure of a trouser hemming device according to the present invention;

[0021] Explanation of key figure labels:

[0022] 1. Ultrasonic components;

[0023] 11. Lifting assembly; 111. Lifting rod; 112. Lifting drive component; 12. Ultrasonic generator; 13. Mold head; 14. Upper auxiliary frame; 15. Lower auxiliary frame;

[0024] 2. Mold wheel;

[0025] 21. Drive wheel; 211. Processing section; 212. Ventilation hole; 213. V-shaped guide groove; 22. Connecting wheel; 23. Air inlet pipe; 231. Air inlet; 24. Balance pipe. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0027] Reference Figure 1-4 This utility model provides a trouser hemming device, including an ultrasonic component 1 and a mold wheel 2.

[0028] The ultrasonic component 1 is used to generate vibration. It is mounted above the mold wheel 2 and can be raised and lowered to contact the mold wheel 2. The ultrasonic component 1 includes a lifting assembly 11, an ultrasonic generator 12, and a mold head 13. The lifting assembly 11 includes a lifting rod 111 and a lifting drive component 112. The lifting drive component 112 can be any of a lifting cylinder, a lifting air cylinder, or a lifting motor, or it can be driven vertically by a rotary motor connected to a connecting rod. The lifting drive component 112 is connected to the top of the lifting rod 111 and drives it to reciprocate vertically. The ultrasonic generator 12 is located on one side of the lifting rod 111 and connected to it. The mold head 13 is connected to the ultrasonic generator 12 and vibrates under its drive. To improve the stability of the mold head 13's vertical movement, the ultrasonic component 1 also includes an upper auxiliary frame 14 and a lower auxiliary frame 15. The upper auxiliary frame 14 is used to fix the lifting assembly 11, the lower auxiliary frame 15 is slidably connected to the upper auxiliary frame 14, and the mold head 13 is connected to the bottom of the lower auxiliary frame 15.

[0029] The mold wheel 2 includes a drive wheel 21 and a connecting wheel 22. One end of the drive wheel 21 is connected to an external rotating drive component, and the other end of the drive wheel 21 is fitted onto the connecting wheel 22 and rotatably connected to it. A self-rotating air inlet pipe 23 is provided on one side of the connecting wheel 22. The side wall of the air inlet pipe 23 meshes with the inner ring of the drive wheel 21 and one end is connected to an external air intake device. The meshing method involves several ribs arranged around the side wall of the air inlet pipe 23, and several slots corresponding to the ribs are provided inside the drive wheel 21. The drive wheel 21 has a processing section 211 through which the trousers can pass. The processing section 211 is a groove opened on the outer side wall of the drive wheel 21. Ventilation holes 212 are provided on the processing section 211, located on the left and right sides of the processing section 211. To increase ventilation, V-shaped guide grooves 213 are provided on the processing section 211 at positions corresponding to the ventilation holes 212. The air intake pipe 23 has an air inlet 231 at the corresponding position of the ventilation hole 212. When the rotating drive wheel 21 drives the air intake pipe 23 to rotate, the air inlet 231 and the ventilation hole 212 will be misaligned. By controlling the rotation speed of the two, the air inlet 231 and the ventilation hole 212 are intermittently aligned.

[0030] Furthermore, a balance tube 24 is provided on one side of the connecting wheel 22, which connects the inner ring of the drive wheel 21 to the outside atmosphere.

[0031] Working principle: In the production line of slingback pants, the slingback pants line passes through the gap between the ultrasonic component 1 and the mold wheel 2. Then, the mold head 13 is activated to vibrate and move up and down intermittently to press the slingback pants into contact with the mold wheel 2. At the same time, air is introduced into the processing section 211, and the ventilation and contact work alternate.

[0032] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0033] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0034] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A trouser hem locking device, characterized in that, The device includes an ultrasonic component and a mold wheel. The ultrasonic component is used to generate vibration and is mounted above the mold wheel, allowing it to be raised and lowered to contact the mold wheel. The mold wheel includes a drive wheel and a connecting wheel. One end of the drive wheel is connected to an external rotating drive component, and the other end of the drive wheel is fitted onto the connecting wheel and rotatably connected to it. One side of the connecting wheel has a self-rotating air inlet pipe. The side wall of the air inlet pipe meshes with the inner ring of the drive wheel and one end is connected to an external air intake device. The drive wheel has a processing section through which the trousers can pass, and the processing section has ventilation holes. The air inlet pipe has an air inlet at a position corresponding to the ventilation holes. When the drive wheel is rotated, causing the air inlet pipe to rotate, the air inlet and the ventilation holes are intermittently aligned.

2. The trouser hemming device according to claim 1, characterized in that, The ventilation holes are located on the left and right sides of the processing section, and the processing section has V-shaped guide grooves at the corresponding positions of the ventilation holes.

3. The trouser hemming device according to claim 1, characterized in that, A balance tube is also provided on one side of the connecting wheel, which connects the inner ring of the drive wheel to the outside atmosphere.

4. The trouser hemming device according to claim 1, characterized in that, The ultrasonic component includes a lifting assembly, an ultrasonic generator, and a mold head. The lifting assembly includes a lifting rod and a lifting drive. The lifting drive is connected to the top of the lifting rod and drives it to move up and down reciprocally. The ultrasonic generator is located on one side of the lifting rod and connected to it. The mold head is connected to the ultrasonic generator and vibrates under its drive.

5. The trouser hemming device according to claim 4, characterized in that, The ultrasonic component also includes an upper auxiliary frame and a lower auxiliary frame. The upper auxiliary frame is used to fix the lifting component, the lower auxiliary frame is slidably connected to the upper auxiliary frame, and the mold head is connected to the bottom of the lower auxiliary frame.

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