Double lower hem folding device

By designing a double hem folding device, automated folding was achieved in the raincoat manufacturing process, solving the safety hazards of manual folding in existing technologies and improving production efficiency and safety.

CN224219565UActive Publication Date: 2026-05-12XIANTAO WANJI MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIANTAO WANJI MASCH CO LTD
Filing Date
2025-06-05
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In the current raincoat manufacturing process, the edge pressing machine cannot automatically complete the edge folding work, which requires manual assistance and poses a safety hazard.

Method used

A double hem folding device was designed, which includes a fabric feeding mechanism, a welding mechanism, a cutting mechanism and a pressing mechanism, to realize the automatic folding, welding and cutting of fabric, and to complete the automated operation of fabric by a robot.

Benefits of technology

It has achieved automated hemming in the raincoat manufacturing process, avoiding the safety hazards of manual operation and improving production efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of raincoat production, and discloses a double lower hem folding device which comprises a device body, an auxiliary assembly is installed at the top of the device body and used for the processes of deviation correction, edge folding, front fly welding, button sewing and cap marking of original cloth, and a double lower hem folding assembly is installed in the middle of the device body and comprises the device body. According to the double-hem edge folding device, after original cloth is subjected to the processes of deviation rectification, edge folding, front fly welding, button sewing and cap marking through the auxiliary assembly, the cloth feeding mechanism is used for continuously conveying the cloth forwards to the outer edge of the double-hem edge folding assembly system, then the cutting-off mechanism works to cut off the cloth, and then the welding mechanism works; the cloth folding and welding device is used for folding and welding one end of cloth, then the needed length of the cloth is adjusted, at the moment, the pressing mechanism presses the cloth downwards, the cutting mechanism is used for cutting the cloth, one end of the cloth is clamped, the other end of the cloth is pressed, and the other end of the cloth is folded and welded in the same way, and manual intervention is not needed.
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Description

Technical Field

[0001] This utility model relates to the field of raincoat production technology, specifically to a double hem folding device. Background Technology

[0002] Raincoats are rain-proof garments made of waterproof fabric. Suitable waterproof fabrics include rubberized cloth, tarpaulin, and plastic film. During the raincoat manufacturing process, edge sealing machines are used to seal the edges of the raincoat to ensure its quality and wearing comfort. Edge sealing machines are machines that process the edges of products. Raincoat edge sealing machines fold and press the edges of the raincoat fabric during the raincoat manufacturing process.

[0003] In the current raincoat manufacturing process, the edge pressing machine cannot automatically complete the folding work, and manual assistance is required to fold up the edges of the raincoat. During the operation, the pressing plate can easily press on the fingers, which is somewhat dangerous. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a double hem folding device, which has the advantage of automatic mechanical folding and avoids the problem of manual folding.

[0005] To achieve the purpose of automatic mechanical folding, this utility model provides the following technical solution:

[0006] A double hem folding device includes a device body, an auxiliary component mounted on the top of the device body for correcting the original fabric, folding, welding plackets, attaching buttons, and marking hats, and a double hem folding component mounted in the middle of the device body for folding, welding, and cutting. The device also includes:

[0007] The double hem folding assembly includes a fabric feeding mechanism installed on the side wall of the device body. The fabric feeding mechanism is used to press and convey the fabric, ensuring that the fabric is conveyed backward while maintaining tension. A welding mechanism is installed on the side wall of the device body for folding and welding. A cutting mechanism is installed on the side wall of the device body for cutting the fabric. A pressing mechanism is installed on the side wall of the device body for pressing the fabric.

[0008] According to some embodiments, the fabric feeding mechanism includes silicone rollers, which are rotatably mounted on the inner wall of the device body, and two sets of silicone rollers are provided.

[0009] According to some embodiments, the welding mechanism includes two sets of downward electric cylinders, which are fixedly installed on both sides of the top of the device body. A connecting block is fixedly connected to the output end of the downward electric cylinder, and a welding block is fixedly connected to the bottom of the connecting block.

[0010] According to some embodiments, a welding base and a folding edge fixing block are fixedly connected to the bottom sides of the device body, respectively, and a folding edge movable block is rotatably connected to the bottom of the device body. The folding edge movable block can be reversed in the direction of the folding edge fixing block.

[0011] According to some embodiments, a synchronous wheel mechanism is fixedly connected to the side wall of the device body, and the synchronous wheel mechanism can drive the folding edge movable block.

[0012] According to some embodiments, the cutting mechanism includes a cutting cylinder, which is fixedly installed on the top of the device body, and a cutting heating wire is fixedly connected to the output end of the cutting cylinder.

[0013] According to some embodiments, the pressing mechanism includes a pressing cylinder, which is fixedly installed on the top of the device body. A pressing rod is fixedly connected to the output end of the pressing cylinder, and a pressing base is fixedly connected to the bottom of the device body at the bottom of the pressing rod.

[0014] According to some embodiments, a first robotic arm and a second robotic arm are slidably mounted on the top of the device body, respectively.

[0015] Beneficial effects

[0016] This utility model provides a double hem folding device, which has the following beneficial effects:

[0017] This double hem folding device works as follows: after the original fabric has undergone correction, folding, placket welding, button attaching, and hat marking processes via auxiliary components, the fabric is fed forward by a fabric feeding mechanism to the outer edge of the double hem folding component system. Then, a cutting mechanism cuts the fabric, and a welding mechanism folds and welds one end of the fabric. The fabric is then adjusted to the required length, and a pressing mechanism presses it down while a cutting mechanism cuts it. At this point, one end of the fabric is held in place and the other end is pressed down. Similarly, the other end of the fabric is folded and welded without manual intervention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the device of this utility model;

[0019] Figure 2 This is a front structural diagram of the double-heeled folded edge assembly of this utility model;

[0020] Figure 3 This is a schematic diagram of the back structure of the double-heeled folded edge assembly of this utility model;

[0021] Figure 4 This is a partial cross-sectional structural diagram of the double-heeled folded edge assembly of this utility model;

[0022] Figure 5 This is a schematic diagram of the hem structure of the fabric of this utility model.

[0023] In the diagram: 1. Device body; 2. Auxiliary components; 3. Double hem folding assembly; 31. Fabric feeding mechanism; 32. Welding mechanism; 33. Cutting mechanism; 34. Pressing mechanism; 4. Silicone roller; 5. Downward electric cylinder; 51. Connecting block; 52. Welding block; 53. Welding fixing base; 54. Folding fixing block; 55. Folding movable block; 56. Synchronous pulley mechanism; 6. Cutting cylinder; 61. Cutting heating wire; 7. Fabric pressing cylinder; 71. Fabric pressing rod; 72. Fabric pressing base; 8. First robotic arm; 81. Second robotic arm. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-5 The double hem folding device includes a device body 1, an auxiliary component 2 mounted on the top of the device body 1, the auxiliary component 2 being used for correcting the original fabric, folding, welding plackets, attaching buttons, and marking hats, and a double hem folding component 3 mounted in the middle of the device body 1, the double hem folding component 3 being used for folding, welding, and cutting, and also includes:

[0026] The double hem folding assembly 3 includes a fabric feeding mechanism 31, which is installed on the side wall of the device body 1. The fabric feeding mechanism 31 is used to press and feed the fabric, ensuring that the fabric is kept under tension while feeding the fabric backward. A welding mechanism 32 is installed on the side wall of the device body 1. The welding mechanism 32 is used for hem welding. A cutting mechanism 33 is installed on the side wall of the device body 1. The cutting mechanism 33 is used to cut the fabric. A pressing mechanism 34 is installed on the side wall of the device body 1. The pressing mechanism 34 is used to press the fabric.

[0027] It should be noted that: Auxiliary component 2 is used for the original fabric for correction, hemming, placket welding, button attaching, and hat marking processes. Then, the fabric is pressed tightly by the fabric feeding mechanism 31, and the fabric is cut by the cutting mechanism 33. The welding mechanism 32 is used for hemming and welding on both sides of the fabric.

[0028] Reference Figures 1-5 The fabric feeding mechanism 31 includes a silicone roller 4, which is rotatably mounted on the inner wall of the device body 1, and two sets of silicone rollers 4 are provided.

[0029] The welding mechanism 32 includes two sets of downward electric cylinders 5. The downward electric cylinders 5 are fixedly installed on both sides of the top of the device body 1. The output end of the downward electric cylinder 5 is fixedly connected to a connecting block 51, and the bottom of the connecting block 51 is fixedly connected to a welding block 52.

[0030] A welding base 53 and a folding edge fixing block 54 are fixedly connected to the bottom sides of the device body 1, and a folding edge movable block 55 is rotatably connected to the bottom of the device body 1. The folding edge movable block 55 can be reversed in the direction of the folding edge fixing block 54.

[0031] A synchronous wheel mechanism 56 is fixedly connected to the side wall of the device body 1. The synchronous wheel mechanism 56 can drive the folding edge movable block 55.

[0032] It should be noted that: the synchronous pulley mechanism 56 drives the folding movable block 55 to reverse, completing the folding action. Then, the downward electric cylinder 5 moves downward, which can be replaced by a downward pneumatic cylinder, driving the preheated welding block 52 to press the folded fabric between the welding block 52 and the welding fixing base 53. Due to the high temperature of the welding block 52, the fabric will... Figure 5 Welding is performed at position A. Then, the first robotic arm 8 arrives at the edge of the fabric, grabs the material, and moves it backward to the required length. The pressing cylinder 7 moves downward, driving the pressing rod 71 downward. At this time, the fabric is fixed between the pressing base 72 and the pressing rod 71. The cutting mechanism 33 cuts the material. At this time, one end of the fabric is held and the other end is pressed. Similarly, the other side of the fabric is welded and folded. The welding block 52 has a built-in heating rod to provide heat for welding. Alternatively, heating can be provided by installing heating wires on the surface of the welding block 52. At the same time, heating can also be provided by building a heating rod in the welding fixing base 53 or installing heating wires on its surface. At this time, there is no heat source in the welding block 52; it only serves the function of pressing.

[0033] Reference Figures 1-5 The cutting mechanism 33 includes a cutting cylinder 6, which is fixedly installed on the top of the device body 1, and a cutting heating wire 61 is fixedly connected to the output end of the cutting cylinder 6.

[0034] The pressing mechanism 34 includes a pressing cylinder 7, which is fixedly installed on the top of the device body 1. The output end of the pressing cylinder 7 is fixedly connected to a pressing rod 71, and a pressing base 72 is fixedly connected to the bottom of the device body 1 at the bottom of the pressing rod 71.

[0035] The top of the device body 1 is respectively slidably mounted with a first robotic arm 8 and a second robotic arm 81;

[0036] It should be noted that when the cutting mechanism 33 is working, the cutting cylinder 6 moves downward, which drives the cutting heating wire 61 to move downward. The cutting heating wire 61 heats up and cuts the cloth. The first robotic arm 8 and the second robotic arm 81 can drag the cloth to slide.

[0037] Operation method: The fabric continues to be fed forward by the silicone roller 4, causing the first robotic arm 8 to move forward and clamp the fabric to the outer edge of the double hem folding assembly 3 system. Then, the cutting mechanism 33 operates, that is, the cutting cylinder 6 moves downward, driving the cutting heating wire 61 downward. The cutting heating wire 61 heats up and cuts the fabric. The hem fixing block 54 and the hem moving block 55 have built-in vacuum pumps, which tightly suck the fabric onto the surface of the hem fixing block 54 and the hem moving block 55.

[0038] Synchronous pulley mechanism 56 drives the folding movable block 55 to reverse, completing the folding action. Then, the downward electric cylinder 5 moves downward, driving the preheated welding block 52 to press the folded fabric between the welding block 52 and the welding fixing base 53. Due to the high temperature of the welding block 52, Figure 5 Welding is performed at position B. Then, the first robotic arm 8 comes to the edge of the fabric, grabs the material and moves it back to the required length. The pressing cylinder 7 moves down, driving the pressing rod 71 down. At this time, the fabric is fixed between the pressing base 72 and the pressing rod 71. The cutting mechanism 33 cuts the material. At this time, one end of the fabric is held and the other end is pressed.

[0039] Similarly, for fabric Figure 5 At position A, welding and folding are performed. At the same time, the second robot 81 moves forward, bringing the clamping clamp level with the first robot 8 and clamping the fabric. Then, the first robot 8 releases the fabric and moves backward. The second robot 81 clamps the fabric and moves forward while rotating downward. The fabric is in a flexible state. Then, the pressing mechanism 34 releases, and the fabric falls onto the conveyor belt. Then, the first robot 8 moves forward to grab the fabric, and this process is repeated.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double hem folding device, comprising a device body (1), characterized in that: The device body (1) is equipped with an auxiliary component (2) on its top. The auxiliary component (2) is used for correcting the original fabric, folding the edges, welding the placket, attaching buttons, and marking the hat. The device body (1) is equipped with a double hem folding component (3) in the middle. The double hem folding component (3) is used for folding, welding, and cutting. It also includes: The double hem folding assembly (3) includes a fabric feeding mechanism (31), which is installed on the side wall of the device body (1). The fabric feeding mechanism (31) is used to press and feed the fabric, ensuring that the fabric is kept under tension while feeding the fabric backward. A welding mechanism (32) is installed on the side wall of the device body (1), which is used for folding and welding. A cutting mechanism (33) is installed on the side wall of the device body (1), which is used for cutting the fabric. A pressing mechanism (34) is installed on the side wall of the device body (1), which is used for pressing the fabric.

2. The double hem folding device according to claim 1, characterized in that: The fabric feeding mechanism (31) includes a silicone roller (4), which is rotatably mounted on the inner wall of the device body (1), and two sets of silicone rollers (4) are provided.

3. The double hem folding device according to claim 2, characterized in that: The welding mechanism (32) includes two sets of downward electric cylinders (5). The downward electric cylinders (5) are fixedly installed on both sides of the top of the device body (1). The output end of the downward electric cylinder (5) is fixedly connected to a connecting block (51), and the bottom of the connecting block (51) is fixedly connected to a welding block (52).

4. The double hem folding device according to claim 3, characterized in that: The bottom sides of the device body (1) are respectively fixedly connected to a welding fixed base (53) and a folding edge fixed block (54). The bottom of the device body (1) is rotatably connected to a folding edge movable block (55), which can be reversed in the direction of the folding edge fixed block (54).

5. The double hem folding device according to claim 4, characterized in that: The device body (1) is fixedly connected to a synchronous wheel mechanism (56) on its side wall, which can drive the folding edge movable block (55).

6. The double hem folding device according to claim 5, characterized in that: The cutting mechanism (33) includes a cutting cylinder (6), which is fixedly installed on the top of the device body (1), and a cutting heating wire (61) is fixedly connected to the output end of the cutting cylinder (6).

7. The double hem folding device according to claim 6, characterized in that: The pressing mechanism (34) includes a pressing cylinder (7), which is fixedly installed on the top of the device body (1). The output end of the pressing cylinder (7) is fixedly connected to a pressing rod (71), and a pressing base (72) is fixedly connected to the bottom of the device body (1) at the bottom of the pressing rod (71).

8. The double hem folding device according to claim 7, characterized in that: The top of the device body (1) is respectively slidably mounted with a first robotic arm (8) and a second robotic arm (81).