Loop turner device and loop turner sewing apparatus

Abstract

The application provides a ring mouth folding device and a fabric folding sewing device. The ring mouth folding device comprises a first folding mechanism and a second folding mechanism which are used in cooperation. The first folding mechanism has a first folding channel, a folding working area and a containing groove. The first folding channel has openings through both sides in a second direction intersecting with a first direction. The second folding mechanism has a second folding channel which is connected with an outlet end of the first folding channel. The second folding mechanism can move between the folding working area and the containing groove, so that at least part of the second folding channel can move between the folding working area and the containing groove. The second folding channel has openings through both sides in the second direction. The ring mouth sewing device greatly simplifies the process of preparing the folding, and can effectively improve the preparation efficiency of the ring mouth.

Description

Technical Field

[0001] This invention relates to the field of textile technology, and in particular to a loop hemming device and a loop sewing machine. Background Technology

[0002] For example, some pillowcase fabrics have loops, and a loop-folding process is usually required during the production of these fabrics. This process involves folding the loop of the fabric over, rolling the edge, and then sewing it to seal the fabric edge. Traditionally, this loop-folding process relies on manual labor, which is inefficient. While some devices exist to assist operators in creating the loop, this process requires not only aligning the fabric and pressing out the loop, but also shaping the loop after it's formed, and finally, manual sewing is still necessary, offering limited improvement in efficiency. Summary of the Invention

[0003] Therefore, it is necessary to provide a ring-folding device and a ring-sewing machine that can further improve the efficiency of the ring-folding process.

[0004] According to some embodiments of the present disclosure, a ring-shaped folding device is provided, which includes: a first folding mechanism and a second folding mechanism used in conjunction with each other;

[0005] The first folding mechanism has a first folding channel, a folding working area, and a receiving groove. The first folding channel has an opening that passes through both sides in a second direction that intersects with the first direction. The first folding channel is provided with the folding working area and the receiving groove below a third direction, and the third direction intersects with both the first direction and the second direction.

[0006] The second folding mechanism has a second folding channel that communicates with the first folding channel. The second folding mechanism is movable between the folding working area and the receiving groove, such that at least a portion of the second folding channel is movable between the folding working area and the receiving groove. The second folding channel has an opening that extends through both sides in the second direction.

[0007] In some embodiments of this disclosure, the first folding mechanism includes a first folding plate, a second folding plate, and a third folding plate arranged sequentially and spaced apart in the third direction, wherein the length of the second folding plate is shorter than the length of the first folding plate and the length of the third folding plate;

[0008] The first folding channel is provided between the first folding plate and the second folding plate, the receiving groove is provided between the second folding plate and the third folding plate, and the folding working area is provided in the area between the first folding plate and the third folding plate where the second folding plate is not located.

[0009] In some embodiments of this disclosure, the first folding mechanism further includes a first connecting plate, a second connecting plate, and a third connecting plate arranged sequentially at intervals in a first direction. The first end of the first folding plate and the first end of the third folding plate in the first direction are connected by the first connecting plate. The tail end of the second folding plate and the tail end of the third folding plate in the first direction are connected by the second connecting plate. The third connecting plate is connected to the tail end of the first folding plate in the first direction.

[0010] In some embodiments of this disclosure, the first folding mechanism further includes at least one side baffle, which is disposed between the second folding plate and the third folding plate, and connected to the side of the second folding plate in the second direction and the side of the third folding plate in the second direction.

[0011] In some embodiments of this disclosure, the second folding mechanism includes a fourth folding plate and a fifth folding plate spaced apart from the third folding plate, the fourth folding plate and the fifth folding plate being disposed between the first folding plate and the third folding plate, and a second folding channel being provided between the fourth folding plate and the fifth folding plate.

[0012] In some embodiments of this disclosure, the second folding mechanism further includes a fourth connecting plate, the tail end of the fourth folding plate in the first direction and the tail end of the fifth folding plate in the first direction are connected by the fourth connecting plate, and the fourth connecting plate is located between the first connecting plate and the second connecting plate.

[0013] In some embodiments of this disclosure, a folding driving mechanism is also included, which is used to drive the movement of the second folding mechanism.

[0014] In some embodiments of this disclosure, a folding and rotating mechanism is also included, which is used to drive the first folding mechanism and the second folding mechanism to rotate around the second direction.

[0015] In some embodiments of this disclosure, the folding driving mechanism includes a driving member, a guide member, and a driving connector. The driving member is disposed on the guide member and is movable along the guide member. The driving member is connected to the second folding mechanism through the driving connector.

[0016] The first folding mechanism is fixedly connected to the guide member. The folding rotation mechanism includes a rotating shaft and an operating handle. The guide member is rotatably connected to the rotating shaft, and the operating handle is connected to the guide member.

[0017] Furthermore, according to some other embodiments of this disclosure, a ring-shaped sewing device is also provided, comprising: a sewing mechanism and a ring-shaped folding device according to any of the above embodiments, wherein the sewing mechanism is disposed on one side of the first folding channel and the second folding channel in the second direction.

[0018] The annular hemming device disclosed herein includes a first hemming mechanism and a second hemming mechanism used in conjunction with each other. The first hemming mechanism has a first hemming channel, a hemming working area, and a receiving groove. The second hemming mechanism has a second hemming channel connected to the outlet end of the first hemming channel. The hemming working area and the receiving groove are located below the first hemming mechanism. The second hemming mechanism is movable between the hemming working area and the receiving groove, so that at least a portion of the second hemming channel can move between the hemming working area and the receiving groove. In actual use, the fabric first enters the first hemming channel to form a first hemmed portion, then passes through the outlet end and enters the lower second hemming channel to form a second hemmed portion. This causes portions of the fabric located on the outer sides of both the first and second hemming channels to also form a hemmed shape. Then, by moving the fabric along a second direction through the first and second hemming channels, continuous hemming is formed on the edges of the fabric. This ring-sewing device only requires the operator to initially guide the edge of the fabric into the first and second hemming mechanisms, and then simply move the fabric to directly form the hem of the entire fabric. This greatly simplifies the hem preparation process and can effectively improve the efficiency of ring preparation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the hem shape of the fabric;

[0020] Figure 2 This is a schematic diagram of the structure of the annular folding device disclosed herein;

[0021] Figure 3 for Figure 2 A schematic diagram of the first folding mechanism shown in the figure;

[0022] Figure 4 for Figure 2 A schematic diagram of the second folding mechanism shown in the figure;

[0023] Figure 5 for Figure 2 The diagram shows the structure when the first folding mechanism and the second folding mechanism are used together.

[0024] The reference numerals and their meanings in the accompanying drawings are as follows:

[0025] 100. Fabric; 110. Fabric body; 120. First folding section; 130. Second folding section; 200. Ring folding device; 201. First folding channel; 202. Working area; 203. Receiving groove; 204. Second folding channel; 210. First folding mechanism; 211. First folding plate; 212. Second folding plate; 213. Third folding plate; 214. First connecting plate; 215. Second connecting plate; 216. Third connecting plate; 217. Side baffle; 220. Second folding component; 221. Fourth folding plate; 222. Fifth folding plate; 223. Fourth connecting plate; 231. Driving component; 232. Guide component; 233. Connecting component; 241. Rotating shaft. Detailed Implementation

[0026] To facilitate understanding of the present invention, a more comprehensive description is provided below. Preferred embodiments of the invention are shown herein. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0027] It should be noted that when one element is referred to as being "fixed" to another element, it can be directly fixed to the other element or there may be an intervening element. When one element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Furthermore, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrated connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements. It should be understood that those skilled in the art can interpret the specific meaning of the above terms according to the specific circumstances without causing ambiguity.

[0028] Unless otherwise specified, in the description of this invention, terms such as “center,” “upper,” “lower,” “left,” “right,” “vertical,” “horizontal,” “inner,” and “outer,” which indicate orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience and simplification of describing the invention and to help the reader understand it in conjunction with the drawings, and are not intended to limit or imply a specific orientation that the device or element referred to must have. Therefore, they should not be construed as limiting the invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term “and / or” as used herein includes any and all combinations of one or more of the associated listed items. The term “more” as used herein includes two or more items. The term “above a certain number” as used herein should be understood as a number and a range greater than a certain number.

[0030] This disclosure provides a ring-shaped folding device, which includes: a first folding mechanism and a second folding mechanism used in conjunction with each other;

[0031] The first folding mechanism has a first folding channel, a folding working area, and a receiving groove. The first folding channel has an opening that passes through both sides in a second direction that intersects with the first direction. The first folding channel has a folding working area and a receiving groove below it in a third direction, and the third direction intersects with both the first and second directions.

[0032] The second folding mechanism has a second folding channel connected to the outlet end of the first folding channel. The second folding mechanism is movable between the folding working area and the receiving groove, such that at least a portion of the second folding channel is movable between the folding working area and the receiving groove. The second folding channel has an opening that extends through both sides in a second direction.

[0033] The annular hemming device disclosed herein includes a first hemming mechanism and a second hemming mechanism used in conjunction with each other. The first hemming mechanism has a first hemming channel, a hemming working area, and a receiving groove. The second hemming mechanism has a second hemming channel connected to the outlet end of the first hemming channel. The hemming working area and the receiving groove are located below the first hemming mechanism. The second hemming mechanism is movable between the hemming working area and the receiving groove, so that at least a portion of the second hemming channel can move between the hemming working area and the receiving groove. In actual use, the fabric first enters the first hemming channel to form a first hemmed portion, then passes through the outlet end and enters the lower second hemming channel to form a second hemmed portion. This causes portions of the fabric located on the outer sides of both the first and second hemming channels to also form a hemmed shape. Then, by moving the fabric along a second direction through the first and second hemming channels, a continuous hemmed edge is formed on the fabric.

[0034] Figure 1 A schematic diagram of a fabric 100 with folded edges is shown. (Refer to...) Figure 1 As shown, the fabric 100 includes a fabric body 110, a first hem portion 120, and a second hem portion 130, with the first hem portion 120 located between the fabric body 110 and the second hem portion 130. (Refer to...) Figure 1The orientation shown is from left to right as the forward direction and from right to left as the reverse direction. The edge of the fabric 100 is first folded in the reverse direction to form the first folded edge 120, and then folded in the forward direction to form the second folded edge 130. Figure 1 The dotted lines in the diagram represent the stitching path of the folded edge. The first folded edge 120, the second folded edge 130, and the main body of the fabric 110 are stitched together to form the loop of the fabric 100.

[0035] Figure 2 A schematic diagram of the structure of a ring-shaped folding device 200 provided in this disclosure is shown. (Refer to...) Figure 2 As shown, the ring-shaped folding device 200 includes a first folding mechanism 210 and a second folding mechanism.

[0036] Figure 3 It shows Figure 2 A schematic diagram of the first folding mechanism 210. (Refer to...) Figure 3 As shown, the first folding mechanism 210 has a first folding channel 201, a folding working area 202, and a receiving groove 203. The first folding channel 201 has an opening that passes through both sides in a second direction that intersects with the first direction. The first folding channel 201 is provided with the folding working area 202 and the receiving groove 203 below the third direction. The third direction intersects with both the first and second directions.

[0037] Among them, according to Figure 3 As shown, the first direction is Figure 3 The x-direction is shown, and the second direction is... Figure 3 The y-direction is shown, and the third direction is... Figure 3 The z-direction is shown. The first direction, the second direction, and the third direction intersect each other. Optionally, the first direction, the second direction, and the third direction are perpendicular to each other.

[0038] Reference Figure 3 As shown, in some examples of this embodiment, the first folding mechanism 210 includes a first folding plate 211, a second folding plate 212, and a third folding plate 213 arranged sequentially and spaced apart in a third direction. The length of the second folding plate 212 is shorter than the length of the first folding plate 211 and the length of the third folding plate 213. A first folding channel 201 is provided between the first folding plate 211 and the second folding plate 212, and a receiving groove 203 is provided between the second folding plate 212 and the third folding plate 213. A folding working area 202 is provided in the area between the first folding plate 211 and the third folding plate 213 that does not have the second folding plate 212.

[0039] It is understood that in this annular hemming device 200, the first hemming channel 201, the working area 202, and the receiving groove 203 play a major role in forming the hemmed shape for the fabric 100. In this example, the desired first hemming channel 201, working area 202, and receiving groove 203 can be defined by the first hemming plate 211, the second hemming plate 212, and the third hemming plate 213. In other examples, the first hemming channel 201, working area 202, and receiving groove 203 can also be obtained by setting workpieces of other shapes.

[0040] Reference Figure 3 As shown, in some examples of this embodiment, the first folding mechanism 210 further includes a first connecting plate 214, a second connecting plate 215, and a third connecting plate 216 arranged sequentially at intervals in a first direction. The first folding plate 211 and the first end of the third folding plate 213 in the first direction are connected by the first connecting plate 214. The second folding plate 212 and the third folding plate 213 in the first direction are connected by the second connecting plate 215. The third connecting plate 216 is connected to the end of the first folding plate 211 in the first direction. The first connecting plate 214, the second connecting plate 215, and the third connecting plate 216 mainly serve to restrict the fabric 100 and the second folding mechanism in the first folding mechanism 210. For example, by providing the second connecting plate 215 and the third connecting plate 216, the fabric 100 can enter the first folding channel 201 more smoothly. By providing the first connecting plate 214, the fabric 100 can enter the second folding channel 204 more smoothly.

[0041] The terms "beginning" and "end" are used only to indicate opposite ends and do not imply any specific limitation on their function. Figure 3 The orientation shown has the "head" on the left and the "tail" on the right.

[0042] Figure 4 It shows Figure 2 A schematic diagram of the second folding mechanism. (Refer to...) Figure 4 As shown, the second folding mechanism has a second folding channel 204 connected to the outlet end of the first folding channel 201. The second folding mechanism is movable between the folding working area 202 and the receiving groove 203, so that at least a portion of the second folding channel 204 is movable between the folding working area 202 and the receiving groove 203. The second folding channel 204 has an opening that extends through both sides in the second direction.

[0043] Reference Figure 4As shown, in some examples of this disclosure, the second folding mechanism includes a fourth folding plate 221 and a fifth folding plate 222 spaced apart in the third direction. The fourth folding plate 221 and the fifth folding plate 222 are disposed between the first folding plate 211 and the third folding plate 213, and a second folding channel 204 is provided between the fourth folding plate 221 and the fifth folding plate 222.

[0044] Reference Figure 4 As shown, in some examples of this disclosure, the second folding mechanism further includes a fourth connecting plate 223, the tail end of the fourth folding plate 221 in the first direction and the tail end of the fifth folding plate 222 in the first direction are connected by the fourth connecting plate 223, and the fourth connecting plate 223 is located between the first connecting plate 214 and the second connecting plate 215.

[0045] It is understandable that the first folding mechanism 210 and the second folding mechanism are used in conjunction. Figure 5 The diagram shows a side view of the structure in which the first folding mechanism 210 and the second folding mechanism work together.

[0046] Please combine Figure 1 The fabric 100 shown is... Figure 5 The diagram shows a first folding mechanism 210 and a second folding mechanism. The second folding mechanism is located between the first folding plate 211 and the third folding plate 213, and the second folding channel 204 is connected to the first folding channel 201. In actual use, the fabric 100 is reverse-flipped into the first folding channel 201 to form a first folded portion 120, and then forward-flipped into the second folding channel 204 to form a second folded portion 130. It can be understood that the direction in which the fabric 100 enters the second folding channel 204 is opposite to the direction in which it enters the first folding channel 201. When entering the first folding channel 201, the edge of the fabric 100 is reverse-flipped, and when entering the second folding channel 204, the edge of the fabric 100 is forward-flipped again to form a fold.

[0047] Furthermore, the fabric 100 forms a fold within the first folding mechanism 210 and the second folding mechanism, which causes the fabric 100 outside the first folding mechanism 210 and the second folding mechanism to also form a fold. In actual use, the folds of the fabric 100 outside the first folding mechanism 210 and the second folding mechanism can be sewn to form a loop. Then, the fabric 100 is translated along the second direction, so that the fabric 100 passes through the two openings of the first folding channel 201 and the two openings of the second folding channel 204, so that the entire edge of the fabric 100 is folded sequentially.

[0048] Reference Figure 3As shown, in some examples of this embodiment, the first folding mechanism 210 further includes at least one side baffle 217. The side baffle 217 is disposed between the second folding plate 212 and the third folding plate 213, and is connected to the side of the second folding plate 212 in the second direction and the side of the third folding plate 213 in the second direction. The side baffle 217 can prevent the second folded portion 130 of the fabric 100 from entering the receiving cavity, thus avoiding the problem of the fabric 100 being stuck in the receiving cavity and unable to move.

[0049] Reference Figure 2 As shown, in some examples of this embodiment, the annular folding device 200 further includes a folding drive mechanism for driving the movement of the second folding mechanism.

[0050] Furthermore, in some examples of this embodiment, the folding driving mechanism includes a driving member, a guide member, and a driving connector. The driving member is disposed on the guide member and is movable along the guide member. The driving member is connected to the second folding mechanism through the driving connector.

[0051] Among them, reference Figure 2 As shown, the first connecting plate 214 can be connected only to a portion of the third folding plate 213, so that there is no obstruction above the other portion of the third folding plate 213. The drive connector can extend from above this portion of the third folding plate 213 into the first folding mechanism 210 and connect to the second folding mechanism.

[0052] Reference Figure 2 As shown, in some examples of this embodiment, the annular folding device 200 further includes a folding rotation mechanism, which is used to drive the first folding mechanism 210 and the second folding mechanism to rotate around a second direction.

[0053] Furthermore, in some examples of this embodiment, the first folding mechanism 210 is fixedly connected to the guide member, and the folding rotation mechanism includes a rotating shaft 241 and an operating handle. The guide member is rotatably connected to the rotating shaft 241, and the operating handle is connected to the guide member.

[0054] Reference Figure 2 As shown, in some examples of this embodiment,

[0055] Furthermore, the annular folding device 200 provided in this disclosure can be used in the following manner:

[0056] The edge of the fabric 100 is guided into the first folding channel 201 to form the first folded portion 120, and then the edge of the fabric 100 is guided from the first folding channel 201 into the second folding channel 204 to form the second folded portion 130.

[0057] The fabric 100 is translated along the second direction so that the edge of the fabric 100 passes continuously through the side opening of the first folding piece and the side opening of the second folding piece 220 along the second direction. At the same time, the first folding part 120 and the second folding part 130 are sewn to the fabric body 110 to form a loop. The second folding piece 220 is controlled to enter the folding piece receiving groove 203, and the fabric 100 is controlled to exit the first folding channel 201.

[0058] The ring-sewing device only requires the operator to initially guide the edge of the fabric 100 into the first folding mechanism 210 and the second folding mechanism, and then simply translate the fabric 100 to directly form the fold of the entire fabric 100, which greatly simplifies the folding process and can effectively improve the efficiency of ring sewing.

[0059] Furthermore, this disclosure also provides a ring-shaped sewing device, which includes: a sewing mechanism and a ring-shaped folding device 200 according to any of the above embodiments, wherein the sewing mechanism is disposed on one side of the first folding channel 201 and the second folding channel 204 in a second direction.

[0060] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A ring-shaped folding device, characterized in that, include: The first and second folding mechanisms are used in conjunction with each other. The first folding mechanism has a first folding channel, a folding working area, and a receiving groove. The first folding channel has an opening that passes through both sides in a second direction that intersects with the first direction. The first folding channel is provided with the folding working area and the receiving groove below a third direction, and the third direction intersects with both the first direction and the second direction. The second folding mechanism has a second folding channel connected to the outlet end of the first folding channel. The second folding mechanism is movable between the folding working area and the receiving groove, so that at least a portion of the second folding channel is movable between the folding working area and the receiving groove. The second folding channel has an opening that extends through both sides in the second direction. The first folding mechanism includes a first folding plate, a second folding plate, and a third folding plate arranged sequentially and at intervals in the third direction, wherein the length of the second folding plate is shorter than the length of the first folding plate and the length of the third folding plate; The first folding channel is provided between the first folding plate and the second folding plate, the receiving groove is provided between the second folding plate and the third folding plate, and the folding working area is provided in the area between the first folding plate and the third folding plate where the second folding plate is not present. The first folding mechanism further includes a first connecting plate, a second connecting plate, and a third connecting plate that are sequentially spaced apart in the first direction. The first end of the first folding plate and the first end of the third folding plate in the first direction are connected by the first connecting plate. The tail end of the second folding plate and the tail end of the third folding plate in the first direction are connected by the second connecting plate. The third connecting plate is connected to the tail end of the first folding plate in the first direction. The second folding mechanism includes a fourth folding plate and a fifth folding plate spaced apart from the third side, the fourth folding plate and the fifth folding plate being disposed between the first folding plate and the third folding plate, and a second folding channel being provided between the fourth folding plate and the fifth folding plate; The second folding mechanism further includes a fourth connecting plate, the tail end of the fourth folding plate in the first direction and the tail end of the fifth folding plate in the first direction are connected by the fourth connecting plate, and the fourth connecting plate is located between the first connecting plate and the second connecting plate.

2. The annular folding device according to claim 1, characterized in that, The first folding mechanism further includes at least one side baffle, which is disposed between the second folding plate and the third folding plate, and is connected to the side of the second folding plate in the second direction and the side of the third folding plate in the second direction.

3. The annular folding device according to claim 1 or 2, characterized in that, It also includes a folding drive mechanism, which is used to drive the movement of the second folding mechanism.

4. The annular folding device according to claim 3, characterized in that, It also includes a folding and rotating mechanism, which is used to drive the first folding mechanism and the second folding mechanism to rotate around the second direction.

5. The annular folding device according to claim 4, characterized in that, The folding driving mechanism includes a driving component, a guide component, and a driving connector. The driving component is disposed on the guide component and can move along the guide component. The driving component is connected to the second folding mechanism through the driving connector. The first folding mechanism is fixedly connected to the guide member. The folding rotation mechanism includes a rotating shaft and an operating handle. The guide member is rotatably connected to the rotating shaft, and the operating handle is connected to the guide member.

6. A circumferential sewing machine, characterized in that, include: The sewing mechanism and the annular folding device according to any one of claims 1 to 5, wherein the sewing mechanism is disposed on one side of the first folding channel and the second folding channel in the second direction.

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