An automatic positioning and folding mechanism for disposable underwear

Abstract

This utility model relates to the field of underwear production, specifically an automatic positioning and folding mechanism for disposable underwear. It includes: a carrier assembly comprising a carrier plate and a circular track, with the blank placed on the carrier plate; a positioning assembly comprising multiple sets of tensioning components simultaneously mounted on a mounting plate to tighten the blank; a folding assembly comprising a first linear module connected to a first support and a second linear module connected to a second support; two symmetrically arranged first grippers connected to the first support, and two symmetrically arranged second grippers connected to the second support; and a rotary drive device mounted on the first grippers. The blank is tensioned and positioned by multiple angles held by the tensioning components; the gripping components hold the area of ​​the blank to be sewn, preventing wrinkles during folding; during flipping, the rotary drive device rotates synchronously while folding, ensuring accurate positioning of the folded blank and guaranteeing sewing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of underwear production technology, and in particular to an automatic positioning and folding mechanism for disposable underwear. Background Technology

[0002] Disposable underwear is a type of underwear used only once, typically made from cellulose materials (such as cotton, bamboo fiber, or wood pulp fiber), designed to provide a comfortable and hygienic wearing experience. Disposable underwear is commonly used for travel, business trips, medical care, postpartum recovery, and other occasions. Disposable underwear production equipment involves processing raw materials through a series of steps to produce finished underwear. This typically includes fabric cutting, sewing, adding waistbands, labeling, inspection, and packaging. Each step requires different equipment and operators. The scale and configuration of underwear production lines vary depending on the manufacturer and product. Some large underwear companies have complete underwear production lines, completing everything from raw materials to finished products in their own factories; while smaller companies may only have partial production lines or outsource underwear production. Regardless of size, the goal of an underwear production line is to efficiently and consistently produce underwear products that meet quality standards and customer needs.

[0003] Disposable underwear blanks are laid flat after cutting and need to be folded for alignment before sewing. Existing technology typically uses a flip-up jig, which folds the blank as it flips. This folding method suffers from inaccurate alignment and the resulting wrinkles easily lead to poor sewing quality. Therefore, how to accurately position and fold the blank is a problem that those skilled in the art need to consider. Utility Model Content

[0004] The purpose of this invention is to provide an automatic positioning and folding mechanism for disposable underwear, so as to solve the problems of inaccurate folding of disposable underwear in the prior art, which leads to low sewing quality.

[0005] The technical solution of this utility model is: an automatic positioning and folding mechanism for disposable underwear, comprising:

[0006] The carrier assembly includes a carrier plate and a circular track for driving the carrier plate to move, on which the blank is placed;

[0007] The positioning components are provided in two locations and symmetrically arranged on both sides of the carrier component, including multiple sets of tensioning components simultaneously arranged on the mounting plate to tighten the billet;

[0008] The folding assembly includes a first linear module connected to a first support and a second linear module connected to a second support; two symmetrically arranged first grippers are connected to the first support and two symmetrically arranged second grippers are connected to the second support; a rotary drive device is provided on the first gripper. When folding, the second gripper grips one side of the blank, and the first gripper grips the other side of the blank and moves along a first direction under the drive of the first linear module. At the same time, the rotary drive device drives the gripping assembly to rotate 180°.

[0009] Preferably, the tensioning assembly includes a third gripper, a first driving device connected to the third gripper, and a second driving device connected to the first driving device;

[0010] The first driving device drives the third gripper to move along the first direction, and the second driving device drives the third gripper to move along the second direction.

[0011] Preferably, the third gripper is connected to a first slide rail with a sliding direction in the first direction; the first slide rail and the first driving device are both connected to the first fixed plate;

[0012] The first fixing plate is connected to the mounting plate via a second slide rail with the driving direction being the second direction.

[0013] Preferably, a lifting device is provided below the mounting plate, and the lifting device drives the mounting plate to move in the vertical direction.

[0014] Preferably, the rotary drive device is connected to the first support via a third drive device, and the third drive devices on both sides can drive the first grippers to move towards or away from each other;

[0015] The first bracket is connected to the linear module via a fourth driving device with a vertical driving direction.

[0016] Preferably, the distance between the two second grippers is less than the distance between the two first grippers;

[0017] A top plate is connected to the second bracket, and the top plate is disposed between the two second grippers.

[0018] Preferably, a pulley system is provided below the carrier plate, and the carrier plate is connected to the annular track through the pulley system;

[0019] A limit cylinder is installed on the annular track, a limit block is connected to the limit cylinder, a limit groove is provided on the limit block, and the limit groove is connected to a protrusion provided on the pulley block.

[0020] Preferably, the tensioning assembly is provided with a sensing device, and at least two sensing devices are provided, which can sense the blank.

[0021] Compared with the prior art, the advantages of this utility model are:

[0022] (1) In this utility model, the blank is first tensioned and positioned by clamping multiple angles of the blank with multiple tensioning components; then the blank to be sewn is clamped by clamping components to avoid wrinkles in the blank during the folding process; when flipping, the blank is rotated synchronously while being folded by a rotation drive device so that the folded blank can still be accurately positioned, thereby ensuring the accuracy of sewing. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] Figure 1 This is a schematic diagram of the automatic positioning and folding mechanism described in this utility model;

[0025] Figure 2 This is a schematic diagram of the positioning component described in this utility model;

[0026] Figure 3 This is a schematic diagram of the tensioning assembly described in this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the folding component described in this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the vehicle assembly described in this utility model;

[0029] Figure 6 This is a schematic diagram of the clamping position of the third gripper of the present invention, wherein the dashed arrows indicate the driving directions of the first and second driving devices;

[0030] Figure 7 This is a schematic diagram of the folding process described in this utility model.

[0031] Among them: vehicle assembly 1, carrier plate 11, circular track 12, pulley block 13, protrusion 131, limit cylinder 14, limit block 15, limit groove 151;

[0032] Positioning component 2, tensioning component 21, third gripper 211, first drive device 212, second drive device 213, first slide rail 214, first fixing plate 215, second slide rail 216, mounting plate 22, lifting device 23;

[0033] First direction S1, second direction S2;

[0034] Folding assembly 3, first bracket 31, first gripper 311, rotation drive device 312, third drive device 313, fourth drive device 314, first linear module 32, second bracket 33, second gripper 331, fifth drive device 332, top plate 333, second linear module 34. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to specific embodiments:

[0036] like Figures 1-7 As shown, this utility model is applied to the production of disposable underwear. After the raw material for disposable underwear is formed, it needs to be folded and then sewn into shape. The technical solution described in this utility model performs the folding action. After the raw material is cut and shaped, it is laid flat on a carrier plate and conveyed to the folding assembly. The raw material has eight corners, and eight sets of tensioning assemblies respectively clamp the eight corners and tension the raw material; then, the first gripper and the second gripper respectively clamp the raw material on both sides in the first direction, and then the first gripper actuates to complete the folding of the raw material. Specifically:

[0037] An automatic positioning and folding mechanism for disposable underwear, comprising:

[0038] The carrier assembly 1 includes a carrier plate 11 and an annular track 12 for driving the carrier plate 11. The blank is placed on the carrier plate 11. A pulley block 13 is provided below the carrier plate 11, and the carrier plate 11 is connected to the annular track 12 through the pulley block 13. A limit cylinder 14 is provided on the annular track 12, and a limit block 15 is connected to the limit cylinder 14. The limit block 15 is provided with a limit groove 151, and the limit groove 151 is connected to a protrusion 131 provided on the pulley block 13.

[0039] In this embodiment, the blank is laid flat on the carrier plate 11, and the annular track 12 drives the carrier plate 11 to move to the positioning component via the pulley group 13. The limiting cylinder 14 drives the limiting block 15 to move upward until the limiting groove 151 engages with the protrusion on the pulley group 13, thereby completing the limiting of the pulley group 13 and thus completing the positioning of the carrier plate 11.

[0040] The positioning component 2 is provided in two places and symmetrically arranged on both sides of the carrier component 1, including multiple sets of tensioning components 21 simultaneously arranged on the mounting plate 22 to tighten the blank.

[0041] The tensioning assembly 21 includes a third gripper 211, a first drive device 212 connected to the third gripper 211, and a second drive device 213 connected to the first drive device 212. The first drive device 212 drives the third gripper 211 to move along a first direction S1, and the second drive device 213 drives the third gripper 211 to move along a second direction S2. The third gripper 211 is connected to a first slide rail 214 with a sliding direction of the first direction S1; both the first slide rail 214 and the first drive device 212 are connected to a first fixed plate 215. The first fixed plate 215 is connected to the mounting plate 22 via a second slide rail 216 with a driving direction of the second direction S2.

[0042] In this embodiment, a lifting device 23 is provided below the mounting plate 22, and the lifting device 23 drives the mounting plate 22 to move in the vertical direction. A sensing device 216 is provided at the tensioning assembly 21, and at least two sensing devices 216 are provided, which can sense the blank.

[0043] When both sensing devices 216 detect the billet, it indicates that the billet is in position, and the third gripper 211 can clamp the corner of the guide billet. The lifting drive device is first activated and moves upward through the drive mounting plate 22, causing the billet to move upward and detach from the carrier plate 11. Then, driven by the first drive device 212 and the second drive device 213, it moves along the first direction S1 and the second direction S2 respectively to tension the billet.

[0044] The blank has eight corners, and the tensioning components 21 of the positioning components 2 on both sides are provided in eight places. For example Figure 6 As shown, at the same positioning component 2, the first driving device 212 of the tensioning components 21 at adjacent locations moves in opposite directions.

[0045] The folding assembly 3 includes a first linear module 32 connected to a first support 31 and a second linear module 34 connected to a second support 33. The first support 31 is connected to two symmetrically arranged first grippers 311, and the second support 33 is connected to two symmetrically arranged second grippers 331. The first grippers 311 are provided with a rotary drive device 312. When folding, the second grippers 331 clamp one side of the blank, and the first grippers 311 clamp the other side of the blank and move along the first direction S1 under the drive of the first linear module 32. At the same time, the rotary drive device 312 drives the clamping assembly to rotate 180°.

[0046] The rotary drive device 312 is connected to the first support 31 via a third drive device 313. The third drive devices 313 on both sides can drive the first grippers 311 to move towards or away from each other. The first support 31 is connected to the first linear module 32 via a fourth drive device 314 with a vertical driving direction. The second support 33 is connected to the second linear module 34 via a fifth drive device 332 with a vertical driving direction. A top plate 333 is connected to the second support 33, and the top plate 333 is positioned between the two second grippers 331. The distance between the two second grippers 331 is smaller than the distance between the two first grippers 311.

[0047] In this embodiment, the driving direction of both the first linear module 32 and the second linear module 34 is the first direction S1. After the blank is positioned by the positioning component 2, the first gripper 311 approaches the blank under the drive of the first linear module 32, the third driving device 313, and the fourth driving device 314, and clamps the blank between two adjacent tensioning components 21. At the same time, under the drive of the second linear module 34 and the fifth driving device 332, the top plate 333 moves along the first direction S1 to the center between its end and the upper end of the blank, and the second gripper 331 clamps both sides of the blank. Afterwards, at the positioning component 2, all the third grippers 211 release the blank and move and reset under the drive of the first driving device 212, the second driving device 213, and the lifting driving device, respectively. The folding action begins.

[0048] The first linear module 32 drives the first gripper 311 to move along the first direction S1 towards the second gripper 331. Simultaneously, the rotation drive device 312 drives the first gripper 311 to rotate. When the first gripper 311 moves above the second gripper 331, the first gripper 311 rotates 180°. Then, driven by the fourth drive device 314, it moves downward, causing the blank to fit together and the folding is completed. Afterward, the sewing mechanism (not shown in the figure) completes the sewing between the first gripper 311 and the second gripper 331.

[0049] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A disposable pant automatic positioning and folding mechanism, characterized by, include: The carrier assembly includes a carrier plate and a circular track for driving the carrier plate to move, on which the blank is placed; The positioning components are provided in two locations and symmetrically arranged on both sides of the carrier component, including multiple sets of tensioning components simultaneously arranged on the mounting plate to tighten the billet; The folding assembly includes a first linear module connected to a first bracket and a second linear module connected to a second bracket; The first support is connected to two symmetrically arranged first grippers, and the second support is connected to two symmetrically arranged second grippers. The first grippers are provided with a rotary drive device. When folding, the second grippers hold one side of the blank, and the first grippers hold the other side of the blank and move along the first direction under the drive of the first linear module. At the same time, the rotary drive device drives the clamping assembly to rotate 180°.

2. A disposable pant automatic positioning and folding mechanism according to claim 1, characterized in that: The tensioning assembly includes a third gripper, a first driving device connected to the third gripper, and a second driving device connected to the first driving device. The first driving device drives the third gripper to move along the first direction, and the second driving device drives the third gripper to move along the second direction.

3. A disposable pant automatic positioning and folding mechanism according to claim 2, characterized in that: The third gripper is connected to a first slide rail with a sliding direction in the first direction; the first slide rail and the first driving device are both connected to the first fixed plate; The first fixing plate is connected to the mounting plate via a second slide rail with the driving direction being the second direction.

4. A disposable pant automatic positioning and folding mechanism according to claim 3, characterized in that: A lifting device is provided below the mounting plate, and the lifting device drives the mounting plate to move in the vertical direction.

5. The automatic positioning and folding mechanism for disposable underpants according to claim 1, wherein: The rotary drive device is connected to the first bracket through a third drive device, and the third drive devices on both sides can drive the first grippers to move towards or away from each other. The first bracket is connected to the linear module via a fourth driving device with a vertical driving direction.

6. A disposable pant automatic positioning and folding mechanism according to claim 1, characterized in that: The distance between the two second grippers is less than the distance between the two first grippers; A top plate is connected to the second bracket, and the top plate is disposed between the two second grippers.

7. The automatic positioning and folding mechanism for disposable underpants according to claim 1, wherein: A pulley system is provided below the carrier plate, and the carrier plate is connected to the annular track through the pulley system. A limit cylinder is installed on the annular track, a limit block is connected to the limit cylinder, a limit groove is provided on the limit block, and the limit groove is connected to a protrusion provided on the pulley block.

8. The automatic positioning and folding mechanism for disposable underwear according to claim 5, characterized in that: The tensioning assembly is equipped with a sensing device, and at least two sensing devices are provided, which can sense the billet.

Images