A pull-up trouser with breathable holes and its preparation method

The automatic opening of ventilation holes by the motor-driven pull-up pants manufacturing equipment solves the problem of cumbersome ventilation hole opening in the existing technology, improves operating efficiency and enhances the breathability and sealing of the pull-up pants.

CN121421764BActive Publication Date: 2026-03-13QUANZHOU MEIGAO BRAND OPERATION CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-12-31
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The process of creating ventilation holes in existing pull-up trousers is cumbersome, requiring manual pulling of the waist elastic band and the use of clamps for restraint, resulting in low operational efficiency.

Method used

The equipment used to manufacture pull-up pants with ventilation holes uses a motor-driven screw to move the connecting block and square plate, so that the pad and the moving plate move up and down synchronously. The tubular cutter automatically opens ventilation holes on the elastic waistband.

Benefits of technology

The process of opening the ventilation holes is simplified, improving operational efficiency. Multiple ventilation holes increase the breathability of the waist area, reducing sweat buildup. The absorbent section has good sealing properties after being rolled up, reducing odor leakage.

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Abstract

This invention discloses a pull-up diaper with breathable holes and its manufacturing method, including a manufacturing unit. The manufacturing unit includes a vertical plate with two support rods fixed to its front side and two side plates fixed to its front side, with the two support rods located between the two side plates. The breathable holes increase the breathability of the waist area, reducing the formation of sweat. After the pull-up diaper is used, pulling one end of the auxiliary strap removes the double-sided adhesive from the absorbent part. Then, the absorbent part filled with urine is rolled up. After the absorbent part is rolled up, the auxiliary strap is used to wrap the rolled-up absorbent part, and then the double-sided adhesive is pasted to the rolled-up absorbent part, thus fixing the auxiliary strap. At this time, the auxiliary strap restrains the rolled-up absorbent part, preventing it from opening again, thus sealing the absorbent part. After the absorbent part is thrown into the trash can, it can reduce the leakage of odor.
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Description

Technical Field

[0001] This invention relates to the field of pull-up pants manufacturing technology, and in particular to a pull-up pants with breathable holes, manufacturing equipment and manufacturing method thereof. Background Technology

[0002] With social progress and the improvement of people's living standards, pull-up diapers have become a fairly common baby hygiene product. The elastic waistband of pull-up diapers has a non-woven fabric inner layer. When the non-woven fabric comes into direct contact with the skin of infants, and because infants have a relatively high body temperature, some infants who sweat a lot will sweat quickly on their waist after wearing pull-up diapers, and the sweat cannot evaporate in time, making the infant feel very uncomfortable. In addition, the sweat remaining on the waist will inevitably erode the skin of the waist and cause skin problems such as rashes.

[0003] Therefore, there are many ways to improve the elastic waistband of existing pull-up diapers in order to reduce sweating caused by stuffiness. One way is to open multiple ventilation holes in the elastic waistband of the pull-up diaper. However, to open the ventilation holes, the operator needs to first pull open the elastic waistband of the pull-up diaper and use a clamp to restrain it before opening the hole. After opening the hole, the clamp and other tools need to be released before the pull-up diaper with the hole can be removed. The whole operation process is very cumbersome and inefficient. Summary of the Invention

[0004] (a) Purpose of the invention

[0005] In view of this, the purpose of this invention is to provide a pull-up trousers with ventilation holes and a method for preparing the same. The technical problem to be solved is the opening of ventilation holes on the pull-up trousers. The operator needs to first pull open the elastic band at the waist of the pull-up trousers and use a clamp to restrain it before opening the holes. After opening the holes, the clamp and other tools need to be released before the pull-up trousers with the holes can be removed. The whole operation process is very cumbersome and inefficient.

[0006] (II) Technical Solution

[0007] To achieve the above technical objectives, the present invention provides a manufacturing device for pull-up pants with breathable holes, including a manufacturing unit. The manufacturing unit includes a vertical plate, two support rods are fixed to the front of the vertical plate, and two side plates are also fixed to the front of the vertical plate. The two support rods are located between the two side plates. A pad and a movable plate are provided between the two side plates. Multiple tubular cutters are fixed inside the movable plate.

[0008] A square plate is provided on the back of the vertical plate, and ear plates are fixed at the four corners of the back of the vertical plate. A limit rod is fixed between two corresponding ear plates. The limit rod passes through the square plate, and the square plate slides outside the limit rod.

[0009] Two mounting bases are fixed to the back of the vertical plate, and a lead screw is rotatably connected between the two mounting bases. A motor is mounted on one of the mounting bases, and one end of the lead screw is fixed to the output end of the motor. Two connecting blocks are fixed to the back of the square plate, and the lead screw passes through the connecting blocks and is threadedly connected to the connecting blocks.

[0010] Preferably, a guide groove is provided in the side plate, and protrusions are fixed at both ends of the pad and the movable plate. The protrusions are slidably engaged in the guide groove, and a guide rod is fixed in the guide groove. The guide rod passes through the protrusion, and the protrusion is slidably engaged outside the guide rod.

[0011] Preferably, the pad has multiple circular holes, and a top post is fixed in each of the circular holes. The diameter of the circular holes is larger than the diameter of the tubular cutter, so that the tubular cutter can be embedded in the circular holes. The diameter of the top post is smaller than the diameter of the tubular cutter, so that the tubular cutter can be embedded in the circular holes.

[0012] Preferably, the vertical plate has a travel groove, a second connecting column is fixed to one side of the pad, and a first connecting column is fixed to one side of the movable plate. Both the first and second connecting columns are slidably engaged in the travel groove.

[0013] Preferably, the square plate has a first inclined groove, and the first connecting column is slidably fitted into the first inclined groove.

[0014] Preferably, the square plate is further provided with a second inclined groove and a horizontal groove, and the second inclined groove and the horizontal groove are connected. The second connecting column is slidably fitted in the second inclined groove and the horizontal groove. The length of the second inclined groove is one-third of the length of the first inclined groove.

[0015] Preferably, two supports are fixed to the back of the vertical plate, and the bottom of the two supports is fixed to a base plate.

[0016] In addition, the present invention also provides a method for manufacturing pull-up trousers with breathable holes, using the above-mentioned equipment for manufacturing pull-up trousers with breathable holes, including the following steps:

[0017] Step 1: First, pull the waist elastic belt to put it on the two support rods;

[0018] Step 2: Start the motor. The motor drives the lead screw to rotate. When the lead screw rotates, it moves the connecting block and the square plate. When the second inclined groove presses against the second connecting column, it will cause the pad to move upward. When the first inclined groove presses against the first connecting column, it will cause the first connecting column and the moving plate to move downward. When the second connecting column moves from the second inclined groove to the horizontal groove, the pad and the waist elastic band will be in contact. After that, when the square plate moves again, the pad will not move upward.

[0019] Step 3: When the second connecting post moves in the transverse groove, the first inclined groove will continue to squeeze the first connecting post and drive the first connecting post and the moving plate to continue to move down. When the tubular cutter continues to move down, a vent hole is opened on the waist elastic band.

[0020] As can be seen from the above technical solutions, this application has the following beneficial effects:

[0021] 1. Due to the multiple ventilation holes, the breathability of the waist area is increased, thereby reducing the formation of sweat stains. After using the pull-up diaper, first pull one end of the auxiliary strap to remove the double-sided tape from the absorbent part. Then roll up the absorbent part filled with urine. After the absorbent part is rolled up, use the auxiliary strap to wrap the rolled-up absorbent part. Then stick the double-sided tape to the rolled-up absorbent part to fix the auxiliary strap. At this time, the auxiliary strap restrains the rolled-up absorbent part, so that the absorbent part will not open again, which has the effect of sealing the absorbent part. After throwing the absorbent part into the trash can, it can reduce the leakage of odor.

[0022] 2: Start the motor to drive the lead screw to rotate. When the lead screw rotates, it drives the connecting block and the square plate to move. When the square plate moves, the second inclined groove squeezes the second connecting column, causing the second connecting column and the pad to move upward. Meanwhile, the first inclined groove squeezes the first connecting column, causing the first connecting column and the moving plate to move downward. When the second connecting column moves from the second inclined groove to the horizontal groove, the pad and the waist elastic band are in contact. When the square plate moves again, the pad will not move upward. At this time, the pad supports the waist elastic band. When the first inclined groove continues to squeeze, it will continue to squeeze the first connecting column and drive the first connecting column and the moving plate to move downward. When the tubular cutter continues to move downward, it will be embedded in the round hole, thus creating a vent hole on the waist elastic band.

[0023] 3: The pad and the movable plate are located on the upper and lower sides of the support rod, respectively, which makes it easy to put the waist elastic band on the support rod. When the waist elastic band is opened with ventilation holes, the pad and the movable plate move up and down synchronously, and only one drive source is needed. When the pad moves to the required position, it will not move anymore, while the tubular cutter will continue to drive the tubular cutter to move down, making the process of opening the ventilation holes very smooth. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1A schematic diagram of the structure of a pull-up trouser with breathable holes provided by the present invention;

[0026] Figure 2 This is a side view of the pull-up pants body provided by the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of a pull-up pants manufacturing device provided by the present invention;

[0028] Figure 4 Provided by the present invention Figure 3 Another perspective diagram of the structure;

[0029] Figure 5 Provided by the present invention Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0030] Figure 6 Provided by the present invention Figure 3 A schematic diagram of the structure from another perspective.

[0031] Figure Descriptions: 100. Pull-up Pants Body; 101. Waist Elastic Band; 102. Absorbent Section; 103. Ventilation Hole; 104. Auxiliary Band; 105. Double-sided Adhesive; 200. Manufacturing Unit; 201. Vertical Plate; 202. Support Rod; 203. Side Plate; 204. Pad Plate; 205. Moving Plate; 206. Tubular Cutter; 207. Guide Groove; 208. Guide Rod; 209. Protrusion; 210. Stroke Groove; 211. First Connecting Post; 212. Second Connecting Post; 213. Round Hole; 214. Top Post; 215. Square Plate; 216. First Inclined Groove; 217. Second Inclined Groove; 218. Horizontal Groove; 219. Ear Plate; 220. Limiting Rod; 221. Mounting Base; 222. Lead Screw; 223. Motor; 224. Connecting Block; 225. Bracket; 226. Base Plate. Detailed Implementation

[0032] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of the various embodiments of this disclosure. Certain details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures.

[0033] Reference Figure 1-6 :

[0034] Example 1

[0035] A pull-up trouser with ventilation holes includes a pull-up trouser body 100. The pull-up trouser body 100 includes a waist elastic band 101 and an absorbent part 102. The waist elastic band 101 and the absorbent part 102 are fixed together. The waist elastic band 101 has multiple ventilation holes 103. The multiple ventilation holes 103 are arranged in a ring array along the diameter of the waist elastic band 101. An auxiliary band 104 is provided on one side of the absorbent part 102. One end of the auxiliary band 104 is fixed to the outer side of the absorbent part 102 away from the ventilation holes 103. Double-sided adhesive 105 is adhered to the inner side of the other end of the auxiliary band 104. The double-sided adhesive 105 can adhere to the absorbent part 102. After the absorbent part 102 is used, it is rolled up. The auxiliary band 104 wraps the rolled-up absorbent part 102 and fixes the wrapped auxiliary band 104 by the adhesive effect of the double-sided adhesive 105.

[0036] It should be noted that the multiple ventilation holes 103 increase the breathability of the waist area, thereby reducing the formation of sweat. After the pull-up pants body 100 is finished, first pull one end of the auxiliary strap 104 so that the double-sided tape 105 no longer adheres to the absorbent part 102. Then roll up the absorbent part 102 filled with urine. After the absorbent part 102 is rolled up, use the auxiliary strap 104 to wrap the rolled-up absorbent part 102. Then stick the double-sided tape 105 to the rolled-up absorbent part 102 to fix the auxiliary strap 104. At this time, the auxiliary strap 104 restrains the rolled-up absorbent part 102, that is, the absorbent part 102 will not open again, which plays a role in sealing the absorbent part 102. Afterwards, after throwing the absorbent part 102 into the trash can, it can reduce the leakage of odor.

[0037] Example 2

[0038] A device for manufacturing pull-up trousers with ventilation holes, based on Embodiment 1, includes a manufacturing unit 200. The manufacturing unit 200 includes a vertical plate 201. Two support rods 202 are fixed to the front of the vertical plate 201. Two side plates 203 are also fixed to the front of the vertical plate 201, and the two support rods 202 are located between the two side plates 203. A pad 204 and a movable plate 205 are arranged between the two side plates 203. Multiple tubular cutters 206 are fixed in the movable plate 205. A guide groove 207 is opened in the side plate 203. Protrusions 209 are fixed at both ends of the pad 204 and the movable plate 205. The protrusions 209 are slidably engaged in the guide groove 207. A guide rod 208 is fixed in the guide groove 207. The guide rod 208 passes through the protrusion 209, and the protrusion 209 is slidably engaged outside the guide rod 208.

[0039] Furthermore, the pad 204 has multiple circular holes 213, and a top post 214 is fixed in each of the circular holes 213. The diameter of the circular holes 213 is larger than the diameter of the tubular cutter 206, allowing the tubular cutter 206 to be inserted into the circular holes 213. The diameter of the top post 214 is smaller than the diameter of the tubular cutter 206, allowing the tubular cutter 206 to be inserted into the circular holes 213. The vertical plate 201 has a travel groove 210. A second connecting post 212 is fixed on one side of the pad 204. A first connecting post 211 is fixed on one side of the moving plate 205. The first connecting post 211 and the second connecting post 212 are both slidably fitted in the stroke groove 210. A square plate 215 is provided on the back of the vertical plate 201. Ear plates 219 are fixed at the four corners of the back of the vertical plate 201. A limit rod 220 is fixed between two corresponding ear plates 219. The limit rod 220 passes through the square plate 215. The square plate 215 is slidably fitted outside the limit rod 220.

[0040] It should be noted that, due to the setting of the guide groove 207, guide rod 208, and protrusion 209, when the pad 204 and the moving plate 205 move up and down, the protrusion 209 will slide along the outside of the guide rod 208, so that the guide rod 208 constrains the movement path of the pad 204 and the moving plate 205, ensuring that the tubular cutter 206 can be embedded in the round hole 213, thereby completing the opening of the ventilation hole 103 on the waist elastic band 101.

[0041] The square plate 215 has a first inclined groove 216, and a first connecting post 211 is slidably fitted in the first inclined groove 216. The square plate 215 also has a second inclined groove 217 and a horizontal groove 218, and the second inclined groove 217 and the horizontal groove 218 are connected. The second connecting post 212 is slidably fitted in the second inclined groove 217 and the horizontal groove 218. The length of the second inclined groove 217 is one-third of the length of the first inclined groove 216. The back of the vertical plate 201 has two mounting seats 221 fixed, and the two mounting seats 221 are rotatably connected to a lead screw 222. A motor 223 is mounted on one of the mounting seats 221, and one end of the lead screw 222 is fixed to the output end of the motor 223. The back of the square plate 215 has two connecting blocks 224 fixed, and the lead screw 222 passes through the connecting blocks 224 and is threadedly connected to the connecting blocks 224. The back of the vertical plate 201 has two brackets 225 fixed, and the bottom of the two brackets 225 is fixed to a base plate 226.

[0042] It should be noted that the motors 223 in this embodiment are all conventional devices known to those skilled in the art and available on the market. The model can be selected or customized according to actual needs. In this embodiment, we only use them and do not improve their structure and function. For those skilled in the art, the setting method, installation method and electrical connection method can be debugged and operated in accordance with the requirements of the instruction manual. They will not be described in detail here. A control switch is also provided. The installation position of the control switch can be selected according to the actual use needs to facilitate the operation and control by the operator.

[0043] In use, when ventilation holes 103 need to be opened on the waist elastic band 101, first pull the waist elastic band 101, then put the waist elastic band 101 on the two support rods 202, and then start the motor 223. The motor 223 drives the lead screw 222 to rotate. When the lead screw 222 rotates, it drives the connecting block 224 to move. When the connecting block 224 moves, it drives the square plate 215 to move. When the square plate 215 moves, the second inclined groove 217 squeezes the second connecting post 212, thereby driving the second connecting post 212 and the pad 204 to move upward. When 215 moves, the first inclined groove 216 squeezes the first connecting post 211, thereby driving the first connecting post 211 and the moving plate 205 to move downward, that is, the tubular cutter 206 will move closer to the round hole 213. When the second connecting post 212 moves from the second inclined groove 217 to the transverse groove 218, the pad 204 and the waist elastic band 101 are in contact. When the square plate 215 moves again, the pad 204 will not move upward. At this time, the pad 204 supports the waist elastic band 101, which makes it easier to make holes in the waist elastic band 101.

[0044] When the second connecting post 212 moves within the transverse groove 218, the first inclined groove 216 continues to press the first connecting post 211 and drives the first connecting post 211 and the moving plate 205 to continue moving downwards. When the tubular cutter 206 continues to move downwards, it will be embedded in the round hole 213, thereby opening a vent hole 103 on the waist elastic band 101. During this process, since the pad 204 and the moving plate 205 are located on the upper and lower sides of the support rod 202 respectively, it is convenient to put the waist elastic band 101 onto the support rod 202. When opening a vent hole 103 on the waist elastic band 101, the pad 204 and the moving plate 205 move up and down synchronously, and only one drive source is needed. When the pad 204 moves to the required position, it will not move anymore, while the tubular cutter 206 will continue to drive the tubular cutter 206 to move downwards, making the opening process of the vent hole 103 very smooth.

[0045] Example 3

[0046] A method for preparing pull-up trousers with breathable holes, based on Examples 1 and 2, includes the following steps:

[0047] Step 1: First, pull the waist elastic band 101 to put the waist elastic band 101 onto the two support rods 202;

[0048] Step 2: Start motor 223. Motor 223 drives lead screw 222 to rotate. When lead screw 222 rotates, it drives connecting block 224 and square plate 215 to move. When the second inclined groove 217 presses the second connecting post 212, it will drive pad 204 to move upward. When the first inclined groove 216 presses the first connecting post 211, it will drive the first connecting post 211 and moving plate 205 to move downward. When the second connecting post 212 moves from the second inclined groove 217 to the horizontal groove 218, the pad 204 and waist elastic band 101 are in contact. After that, when the square plate 215 moves again, the pad 204 will not move upward.

[0049] Step 3: When the second connecting post 212 moves in the transverse groove 218, the first inclined groove 216 will continue to squeeze the first connecting post 211 and drive the first connecting post 211 and the moving plate 205 to continue to move down. When the tubular cutter 206 continues to move down, a vent hole 103 is opened on the waist elastic band 101.

[0050] The exemplary implementation of the solution proposed in this disclosure has been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A device for manufacturing pull-up trousers with breathable holes, characterized in that, The preparation unit (200) includes a vertical plate (201), two support rods (202) are fixed on the front of the vertical plate (201), and two side plates (203) are fixed on the left and right sides of the front of the vertical plate (201). The two support rods (202) are located between the two side plates (203). The two support rods (202) are used to fit the waist elastic band (101) of the pull-up pants. A pad (204) and a movable plate (205) are provided between the two side plates (203). Multiple tubular cutters (206) are fixed inside the movable plate (205). A square plate (215) is provided on the back of the vertical plate (201). Ear plates (219) are fixed at the four corners of the back of the vertical plate (201). A limit rod (220) is fixed between two corresponding ear plates (219). The limit rod (220) passes through the square plate (215). The square plate (215) is slidably fitted outside the limit rod (220). Two mounting seats (221) are fixed on the back of the vertical plate (201). A lead screw (222) is rotatably connected between the two mounting seats (221). A motor (223) is mounted on one of the mounting seats (221). One end of the lead screw (222) is fixed to the output end of the motor (223). Two connecting blocks (224) are fixed on the back of the square plate (215). The lead screw (222) passes through the connecting block (224) and is threadedly connected to the connecting block (224). The vertical plate (201) has a vertical travel groove (210) inside. The pad plate (204) has a second connecting column (212) fixed on one side. The moving plate (205) has a first connecting column (211) fixed on one side. The first connecting column (211) and the second connecting column (212) are both slidably engaged in the travel groove (210). The square plate (215) has a first inclined groove (216) inside. The first connecting column (211) is slidably engaged in the first inclined groove (216). The square plate (215) also has a second inclined groove (217) and a horizontal groove (218) inside. The second inclined groove (217) and the horizontal groove (218) are connected. The second connecting column (212) is slidably engaged in the second inclined groove (217) and the horizontal groove (218). The length of the second inclined groove (217) is one-third of the length of the first inclined groove (216). The screw (222) rotates, causing the square plate (215) to move left and right, which in turn causes the pad (204) to move up and the moving plate (205) to move down. The moving plate (205) moves down, causing the tubular cutter (206) to move down and opening a vent hole on the waist elastic band (101).

2. The equipment for manufacturing pull-up trousers with breathable holes according to claim 1, characterized in that, The side plate (203) has a guide groove (207) inside. Both ends of the pad plate (204) and the moving plate (205) are fixed with protrusions (209). The protrusions (209) are slidably fitted in the guide groove (207). A guide rod (208) is fixed in the guide groove (207). The guide rod (208) passes through the protrusions (209), and the protrusions (209) are slidably fitted outside the guide rod (208).

3. The equipment for manufacturing pull-up trousers with breathable holes according to claim 2, characterized in that, The pad (204) has multiple round holes (213) inside, and a top post (214) is fixed inside the round hole (213). The diameter of the round hole (213) is larger than the diameter of the tubular cutter (206), and the tubular cutter (206) can be embedded in the round hole (213). The diameter of the top post (214) is smaller than the diameter of the tubular cutter (206).

4. The equipment for manufacturing pull-up trousers with breathable holes according to claim 3, characterized in that, Two supports (225) are fixed to the back of the vertical plate (201), and the bottom of the two supports (225) is fixed to a base plate (226).

5. A method for manufacturing pull-up trousers with breathable holes, using the equipment for manufacturing pull-up trousers with breathable holes as described in any one of claims 2-4, characterized in that, Includes the following steps: Step 1: First, pull the waist elastic band (101) to put the waist elastic band (101) on the two support rods (202); Step 2: Start the motor (223). The motor (223) drives the lead screw (222) to rotate. When the lead screw (222) rotates, it drives the connecting block (224) and the square plate (215) to move left and right. When the second inclined groove (217) squeezes the second connecting column (212), it will drive the pad (204) to move up. When the first inclined groove (216) squeezes the first connecting column (211), it will drive the first connecting column (211) and the moving plate (205) to move down. When the second connecting column (212) moves from the second inclined groove (217) to the horizontal groove (218), the pad (204) and the waist elastic band (101) are in contact. After that, when the square plate (215) moves again, the pad (204) will not move up again. Step 3: When the second connecting post (212) moves in the transverse groove (218), the first inclined groove (216) will continue to squeeze the first connecting post (211) and drive the first connecting post (211) and the moving plate (205) to continue to move down. When the tubular cutter (206) continues to move down, a vent hole (103) is opened on the waist elastic band (101).

Citation Information

Patent Citations

  • Punching and lining feeding device for trouser waist knotting and using method of punching and lining feeding device

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