Automatic crimping machine

Abstract

The application relates to an automatic hemming machine, which comprises a workbench, a supporting mechanism connected with the workbench and a movable mechanism, the supporting mechanism comprises a supporting assembly, a tubular fabric is sleeved on the periphery of the supporting assembly along a first direction, and the tubular fabric is a fabric with exposed bone positions and a first hem formed by outwardly folding an opening end, a part of the tubular fabric except the first hem is defined as a loop fabric; the movable mechanism comprises a bone reversing plate and a first driving structure connected with the bone reversing plate, the bone reversing plate can move to a pressing position and a pre-reversing position under the driving of the first driving structure, the bottom surface of the bone reversing plate is in abutment with the loop fabric when the bone reversing plate is in the pressing position; when the bone reversing plate moves from the pressing position to the pre-reversing position, part of the bone reversing plate is inserted between the loop fabric and the first hem, and the bone reversing plate can move along a second direction under the driving of the first driving structure to turn over the bone position. The direction of the bone position can be reliably controlled, the process requirement can be better met, and the comfort of a user is improved.

Description

Technical Field

[0001] This application relates to the field of sewing equipment technology, and in particular to an automatic hemming machine. Background Technology

[0002] Automatic hemming machines are used to hem the edges of flexible fabrics of a certain thickness. In the garment production process, hemming machines are required for sewing parts such as sleeves or trouser legs. Sleeves include sleeve covers and cuffs, and trouser legs include trouser legs and hems. Sleeve covers and trouser legs are approximately cylindrical and are mainly made by rolling up a piece of fabric and sewing it, so that the seams of the inner walls of the sleeve covers and trouser legs form a seam.

[0003] When using a hemming machine to sew tubular fabrics (cuffs or trouser legs), the inner wall of the tubular fabric is first turned outward to expose the seam. Then, the tubular fabric in the turned-out state is placed on the workpiece placement mechanism of the hemming machine to achieve hemming. However, current hemming machines press the seam to one side when hemming tubular fabrics. Different garments have different requirements for the direction of seam turning. Therefore, this can only be done manually, which is inefficient and has low production safety. Utility Model Content

[0004] Therefore, it is necessary to provide an automatic edge-rolling machine for automatically flipping bone positions.

[0005] This application provides an automatic hemming machine, including a worktable, a material support mechanism and an active mechanism connected to the worktable, wherein the material support mechanism includes a material support assembly extending along a first direction for supporting a tubular fabric, the tubular fabric being fitted around the periphery of the material support assembly along the first direction, and having exposed ribs and an open end folded outward to form a first hemmed edge, the portion of the tubular fabric excluding the first hemmed edge is defined as an annular fabric;

[0006] The movable mechanism includes a reverse bone plate and a first driving structure connected to the reverse bone plate. The reverse bone plate can move to a pressing position and a pre-reverse bone position under the drive of the first driving structure. When the reverse bone plate is in the pressing position, the bottom surface of the reverse bone plate abuts against the position on the annular fabric located next to the first rolled edge. When the reverse bone plate moves from the pressing position to the pre-reverse bone position, a portion of the reverse bone plate is inserted between the annular fabric and the first rolled edge. Under the drive of the first driving structure, the reverse bone plate can move along a second direction to flip the bone position, which is defined as a bone position flipping process. The second direction is at an angle to both the first direction and the up and down direction.

[0007] In one embodiment, the reversed plate includes an L-shaped reversed body, the reversed body including an extension extending along the second direction and a side portion connected to a first end of the extension, the second end of the extension being connected to a power output end of the first drive structure, and the side portion being located between the annular fabric and the first rolled edge when the reversed plate is in the pre-reversed position.

[0008] In one embodiment, a mounting base fixedly connected to the workbench is provided above the workbench. The first driving structure includes a first mounting plate, a second mounting plate, a first driving component, a second driving component, and a third driving component. The first driving component is fixedly mounted on the first mounting plate, and the power output end of the first driving component is connected to the reverse bone plate to drive the reverse bone plate to move up and down. The second driving component is fixedly mounted on the second mounting plate, and the power output end of the second driving component is connected to the first mounting plate to drive the first driving component and the reverse bone plate to move back and forth along the first direction. The third driving component is mounted on the mounting base, and the power output end of the third driving component is connected to the second mounting plate to drive the second driving component, the first driving component, and the reverse bone plate to move along the second direction.

[0009] In one embodiment, the automatic hemming machine further includes a hemming mechanism, which includes a hemming hook and a second driving structure driven by the hemming hook. The hemming hook is arranged along the first direction, and a hook portion is provided at the first end of the hemming hook. The hemming hook can move under the drive of the second driving structure to a position where the hook portion extends between the first hemmed edge and the annular fabric. When the tubular fabric is in motion, the free edge of the first hemmed edge is folded inward to form a second hemmed edge, which is defined as the hemming process. The hemming process is located upstream of the rib flipping process.

[0010] In one embodiment, a connecting seat is provided above the workbench and is fixedly connected to the workbench. The second drive structure is disposed on the connecting seat, and the second drive structure includes a linkage component that enables the coil hook to move up and down and a fourth drive component for driving the coil hook to move back and forth along the first direction. The linkage component is connected to the second end of the coil hook, and the power output end of the fourth drive component is connected to the linkage component.

[0011] In one embodiment, the linkage component is a fifth cylinder, the output end of which is arranged vertically and connected to the coil hook; or,

[0012] The linkage component includes a tension spring, a connecting shaft, and a vertically arranged connecting plate. The connecting plate is rotatably connected to the power output end of the fourth drive component via the connecting shaft. The connecting plate is located below the connecting shaft and connected to the second end of the coil hook. The connecting plate is located above the connecting shaft and connected to the first end of the tension spring. The second end of the tension spring is connected to the power output end of the fourth drive component. When the reverse bone plate is in the pre-reverse bone position, the reverse bone plate pushes the hook upward to disengage the hook from the pressure state against the bone position.

[0013] In one embodiment, a sewing machine is provided on the top surface of the workbench. The sewing machine includes a sewing head with a needle. The connecting seat is located below the sewing head and forms an accommodating space with the sewing head. The hemming mechanism is located within the accommodating space.

[0014] In one embodiment, the material support assembly includes a needle plate and at least two support rods in sequence along the circumferential direction. The needle plate and the connecting seat are connected in sequence along the insertion direction of the tubular fabric. The needle plate has a needle groove at the position corresponding to the needle for the needle to pass through. The support rods are located below the needle plate. The worktable has a vertically arranged fixed seat located below the needle plate. The support rods are disposed on the fixed seat and are arranged to move in and out of the fixed seat so that the material support assembly can retract or expand.

[0015] In one embodiment, a presser foot is provided above the needle plate, and the presser foot has a through hole at the position corresponding to the needle for the needle to pass through. The machine head is provided with a fourth drive structure for driving the presser foot to move up and down, and the power output end of the fourth drive structure is connected to the presser foot.

[0016] In one embodiment, the presser foot includes a presser foot portion and a guard portion. The fourth drive structure includes a sixth drive component for driving the guard portion to move up and down and a seventh drive component for driving the presser foot portion to move up and down. The guard portion and the presser foot portion are arranged sequentially along the insertion direction of the tubular fabric. The guard portion can be located on the movement path of the reversed plate along the second direction. When the reversed plate moves to the side of the guard portion, the guard portion moves upward under the drive of the sixth drive component, so that the reversed plate can move to a position below the guard portion.

[0017] In one embodiment, the automatic hemming machine further includes a conveying mechanism for rotating the tubular fabric about an axis extending along a first direction, the conveying mechanism being spaced apart from the movable mechanism along the second direction, and at least a portion of the conveying mechanism being located below the machine head.

[0018] In one embodiment, the conveying mechanism includes a first drag wheel rotatably mounted on the connecting seat, a second drag wheel located above the first drag wheel, a first drive mechanism for driving the second drag wheel to rotate around its own axis, and a second drive mechanism for driving the second drag wheel to move up and down. The power output end of the second drive mechanism is connected to the first drive mechanism, and the power output end of the first drive mechanism is connected to the rotating shaft of the second drag wheel. The rotating shaft extends along the first direction, and the axis of the rotating shaft is the axis of the second drag wheel and is parallel to the rotation axis of the first drag wheel. The needle plate has a clearance opening to avoid the first drag wheel. When the tubular fabric is sleeved around the support assembly, the tubular fabric is located around the first drag wheel and partially located between the first drag wheel and the second drag wheel.

[0019] In one embodiment, the sixth drive assembly and the seventh drive assembly are arranged sequentially at intervals along the insertion direction of the tubular fabric, and each includes a driver and a connecting arm arranged along the second direction. The first end of the connecting arm is rotatably connected to the worktable or machine head via a first mounting shaft extending along the first direction. The second ends of the two connecting arms are rotatably connected to the edge guard and the presser foot, respectively. The power output end of the driver is rotatably connected to the corresponding side of the connecting arm via a second mounting shaft. The second mounting shaft is located between the first end and the second end of the connecting arm. The first mop roller and the second mop roller are located between the two connecting arms.

[0020] In one embodiment, the automatic edge rolling machine further includes a controller and a sensor for sensing the bone position. The sensor is located above the support assembly, and the signal output terminal of the sensor is electrically connected to the signal input terminal of the controller. The signal output terminal of the controller is electrically connected to the first drive structure and is configured to control the first drive structure to drive the reverse bone plate to perform a bone position flipping process after receiving a signal from the sensor that the bone position has been sensed.

[0021] Compared with the prior art, the automatic hemming machine provided in this application is equipped with a movable mechanism. The bob plate in the movable mechanism can move to the abutment position under the drive of the first drive structure, that is, the position where it abuts against the position of the annular fabric located next to the first hemmed edge. Under the drive of the first drive structure, it can move from the abutment position to the pre-bob position where it is partially inserted between the annular fabric and the first hemmed edge. At this time, one side of the bob plate can press down on the bob position located between the first hemmed edge and the annular fabric, and can also press down on the bob position located next to the first hemmed edge. Since the bob plate presses against the annular fabric, when the bob plate moves along the second direction, the rotation of the bob position on the annular fabric can be reliably realized, that is, the direction of the bob position can be reliably controlled, which better meets the process requirements and improves the user's comfort. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of an automatic edge-rolling machine according to an embodiment of this application;

[0024] Figure 2 for Figure 1 A magnified view of a section at point I;

[0025] Figure 3 for Figure 1 A schematic diagram of the structure of the activity mechanism in the middle;

[0026] Figure 4 for Figure 3 Another structural diagram;

[0027] Figure 5 for Figure 1 Schematic diagram of the conveyor mechanism;

[0028] Figure 6 This is a schematic diagram of the structure of a curling mechanism according to an embodiment of this application;

[0029] Figure 7 This is a schematic diagram of the structure of the needle plate, presser foot and conveying mechanism in one embodiment of this application;

[0030] Figure 8 for Figure 7 Another structural diagram;

[0031] Figure 9 This is a schematic diagram of the structure of the tubular fabric with the first rolled edge in this application;

[0032] Figure 10 for Figure 9 A cross-sectional view of a tubular fabric with a second rolled edge;

[0033] Figure 11 This is a schematic diagram of the hemming mechanism according to another embodiment of this application;

[0034] Figure 12 for Figure 11 A structural diagram from another angle.

[0035] Reference numerals: 1. Workbench; 11. Mounting base; 111. Third slide rail; 12. Connecting base; 13. Fixed base; 131. First guide rail; 132. Sixth cylinder; 133. Seventh cylinder; 134. Movable rod; 135. Second guide rail; 2. Material support mechanism; 21. Material support assembly; 211. Needle plate; 2111. Needle groove; 2112. Clearance opening; 212. First support rod; 2121. First fixing plate; 2122. First guide part; 2123. Locking element; 213. Second support rod; 213 1. Second fixing plate; 2132. Second guide part; 214. Lower stop bar; 3. Movable mechanism; 31. Reverse bone plate; 311. Reverse bone body; 3111. Extension part; 3112. Side part; 312. Transition plate; 3121. First sliding part; 32. First drive structure; 321. First mounting plate; 3211. First plate; 3212. Second plate; 3213. First slide rail; 3214. Second sliding part; 322. Second mounting plate; 3221. Second slide rail; 3222. Third sliding part; 323. First drive assembly; 324, Second drive assembly; 325, Third drive assembly; 3251, First motor; 3252, Conveyor toothed belt; 3253, Drive gear; 3254, Driven gear; 4, Cylindrical fabric; 41, First hemming; 411, Second hemming; 42, Circular fabric; 43, Bone position; 5, Hemming mechanism; 51, Fabric hook; 511, Hook; 52, Second drive structure; 521, Fifth cylinder; 522, Fourth drive assembly; 5231, Tension spring; 5232, Connecting shaft; 523 3. Connecting plate; 5234. Arc groove; 5235. Fixing component; 6. Sewing machine; 61. Machine head; 62. Machine needle; 63. Accommodating space; 64. Fourth drive structure; 641. Sixth drive assembly; 642. Seventh drive assembly; 6431. Second driver; 6432. Connecting arm; 7. Presser foot; 71. Presser foot part; 711. Perforation; 72. Edge guard part; 8. Conveying mechanism; 81. First drag roller; 82. Second drag roller; 83. First drive mechanism; 84. Second drive mechanism; 9. Sensor. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0037] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," "side," "top," "bottom," and similar expressions used in this application's specification are merely for describing various exemplary structural parts and elements of this application. However, their use herein is for illustrative purposes only and is determined based on the exemplary orientations shown in the accompanying drawings, and does not represent the only possible implementation. Since the embodiments disclosed in this application can be arranged in different orientations, these terms indicating orientation are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that "axial arrangement" means that the overall arrangement direction is along the axial direction, including but not limited to axial extension, and may be at an angle to the axial direction.

[0041] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0042] like Figures 1-12 As shown, this application discloses an automatic edge-rolling machine. Figure 1 As shown, the automatic hemming machine includes a worktable 1, a material support mechanism 2, and a movable mechanism 3. Both the material support mechanism 2 and the movable mechanism 3 are connected to the worktable 1. The material support mechanism 2 includes a material support assembly 21 extending along a first direction A to support the tubular fabric 4. Figure 1 , Figure 9 and Figure 10 As shown, the tubular fabric 4 is wrapped around the periphery of the support assembly 21 along the first direction A, and the rib 43 is exposed and the open end is folded outward to form a first rolled edge 41. The part of the tubular fabric 4 other than the first rolled edge 41 is defined as the annular fabric 42.

[0043] like Figure 1 , Figure 3 and Figure 4 As shown, the movable mechanism 3 includes a reverse bone plate 31 and a first drive structure 32 connected to the reverse bone plate 31. The reverse bone plate 31 can move to the pressing position and the pre-reverse bone position under the drive of the first drive structure 32. Figure 1 , Figure 3 , Figure 4 , Figure 9 and Figure 10 As shown, when the reverse bone plate 31 is in the pressing position, the bottom surface of the reverse bone plate 31 abuts against the position on the tubular fabric 4 located beside the first rolled edge 41; that is, the bottom surface of the reverse bone plate 31 abuts against the annular fabric 42 beside the first rolled edge 41. When the reverse bone plate 31 moves from the pressing position to the pre-reverse bone position, a portion of the reverse bone plate 31 is inserted between the annular fabric 42 and the first rolled edge 41, and the reverse bone plate 31 can move along the second direction B under the drive of the first driving structure 32 to flip the bone position 43, which is defined as the bone position 43 flipping process. The second direction B is at an angle to the first direction A and the vertical direction.

[0044] It should be noted that the tubular fabric 4 mentioned above is the trouser leg or sleeve, and the position of the first rolled edge 41 is the cuff or trouser hem.

[0045] It is understandable that an active mechanism 3 is set in the automatic hemming machine. The boning plate 31 in the active mechanism 3 can move to the abutment position under the drive of the first drive structure 32, that is, the position where it abuts against the position of the annular fabric 42 located next to the first hemming 41. Under the drive of the first drive structure 32, it can move from the abutment position to the pre-boning position where it is partially inserted between the annular fabric 42 and the first hemming 41. At this time, one side of the boning plate 31 can press down the bone position 43 located between the first hemming 41 and the annular fabric 42, and can also press down the bone position 43 located next to the first hemming 41. When the boning plate 31 moves along the second direction B, it can reliably realize the flipping of the bone position 43 on the annular fabric 42, that is, reliably control the tilting direction of the bone position 43, better meet the process requirements, and improve the user's comfort.

[0046] Furthermore, the aforementioned reverse bone plate 31 includes an L-shaped reverse bone body 311. The reverse bone body 311 includes an extension portion 3111 extending along the second direction B and a side portion 3112 connected to the first end of the extension portion 3111. The second end of the extension portion 3111 is connected to the power output end of the first drive structure 32. When the reverse bone plate 31 is in the pre-reverse bone position, the side portion 3112 is located between the annular fabric 42 and the first rolled edge 41. That is, the side portion 3112 can press against the annular fabric 42 below the first rolled edge 41, while the extension portion 3111 presses against the annular fabric 42 located beside the first rolled edge 41. In this way, the direction of the bone position 43 on the annular fabric 42 can be better controlled, avoiding the omission of bone position 43 flipping on the annular fabric 42, and facilitating subsequent sewing at the second rolled edge position.

[0047] like Figure 1 , Figure 3 and Figure 4As shown, a mounting base 11 fixedly connected to the workbench 1 is provided above the workbench 1. The first drive structure 32 includes a first mounting plate 321, a second mounting plate 322, a first drive assembly 323, a second drive assembly 324, and a third drive assembly 325. The first drive assembly 323 is fixedly mounted on the first mounting plate 321, and its power output end is connected to the reverse bone plate 31 to drive the reverse bone plate 31 to move up and down, thereby pressing the reverse bone plate 31 downward against the tubular fabric. The second drive assembly 324 is fixedly mounted on the second mounting plate 322, and its power output end is connected to the first mounting plate 321 to drive the first drive assembly 323 and the reverse bone plate 31 to move back and forth along the first direction A, thereby enabling switching between the pressing position and the pre-reverse bone position. The aforementioned third drive assembly 325 is mounted on the mounting base 11, and the power output end of the third drive assembly 325 is connected to the second mounting plate 322 to drive the second drive assembly 324, the first drive assembly 323 and the reverse bone plate 31 to move along the second direction B, thereby achieving the purpose of the reverse bone plate 31 moving closer to or further away from the aforementioned support assembly 21.

[0048] Specifically, the first drive assembly 323 is a first cylinder, with its output end arranged vertically. The second drive assembly 324 is a second cylinder, with its output end arranged along a first direction A. The third drive assembly 325 includes a first motor 3251, a conveyor belt 3252, and a drive gear 3253 and a driven gear 3254 arranged at intervals along a second direction B. The driven gear 3254 is rotatably mounted on the mounting base 11. The output shaft of the first motor 3251 extends along the first direction A. The drive gear 3253 is mounted on the output shaft of the motor. The conveyor belt 3252 surrounds the drive gear 3253 and the driven gear 3254 and meshes with them. The second mounting plate 322 is connected to the conveyor belt 3252. Thus, when the first motor 3251 operates, it drives the driving gear 3253 to rotate, and transmits power to the driven gear 3254 via the conveyor belt 3252, thereby driving the driven gear 3254 to rotate. During the movement, the conveyor belt 3252 drives the second mounting plate 322 to move back and forth along the second direction B. In addition, the first drive assembly 323 and the third drive assembly 325 are arranged sequentially along the first direction A. In this way, the overall structure of the movable mechanism 3 is more compact.

[0049] Furthermore, the output end of the first cylinder is connected to the second end of the extension 3111 via a transition plate 312. The transition plate 312 is vertically arranged, and the first mounting plate 321 includes a first plate 3211 arranged parallel to the transition plate 312 at a distance, and a second plate 3212 arranged parallel to the second mounting plate 322 at a distance, with the second plate 3212 located above the second mounting plate 322. To guide the movement of the reverse plate 31 in the vertical direction, the first direction A, and the second direction B, a sliding first slide rail 3213 and a first sliding part 3121 are fitted between the first plate 3211 and the transition plate 312, with the first slide rail 3213 extending along the vertical direction. A sliding second slide rail 3221 and a second sliding part 3214 are fitted between the second plate 3212 and the second mounting plate 322, with the second slide rail 3221 extending along the first direction A. In addition, the second mounting plate 322 is located above the mounting base 11, and a third slide rail 111 and a third sliding part 3222 are provided between the second mounting plate 322 and the mounting base 11 for sliding engagement. The third slide rail 111 extends along the second direction B.

[0050] Schematic, the first slide rail 3213 may be located on the first plate 3211 or the transition plate 312; the second slide rail 3221 may be located on the second plate 3212 or the second mounting plate 322; and the third slide rail 111 may be located on the second mounting plate 322 or the mounting base 11.

[0051] It should be noted that the first direction A can be either left-right or front-back. When the first direction A is left-right, the second direction B is front-back. When the first direction A is front-back, the second direction B is left-right. In this embodiment, the direction in which the operator sits is used as a reference, that is, the first direction A is from left to right, the second direction B is front-back, and the material support assembly is located in front of the first drive structure 32 as an example.

[0052] Thus, driven by the third drive assembly 325, the reverse bone plate 31 first moves forward from its initial position to above the tubular fabric 4, then moves to the left under the drive of the second drive assembly 324 to the left side of the first rolled edge 41, then moves downward under the drive of the first drive assembly 323 to the corresponding position against the annular fabric 42, then moves to the right under the drive of the second drive assembly 324 to partially insert between the annular fabric 42 and the first rolled edge 41, and finally the reverse bone plate 31 moves forward at a speed V1 under the drive of the third drive assembly 325 to flip the bone position.

[0053] In one embodiment, the first drive structure 32 includes a first power source, a first transmission assembly, a second transmission assembly, and a third transmission assembly. The first power source is selectively connected to the power input ends of the first, second, and third transmission assemblies. The power output end of the first transmission assembly is connected to the second end of the extension 3111 to drive the extension 3111 to move in the vertical direction. The power output end of the second transmission assembly is connected to the second end of the extension 3111 to drive the extension 3111 to move back and forth along the first direction A. The power output end of the third transmission assembly is connected to the second end of the extension 3111 to drive the extension 3111 to move along the second direction B.

[0054] In another embodiment, the first drive structure 32 includes a first power source, a first transmission assembly, a second transmission assembly, and a first drive assembly 323. The first power source is connected to the second end of the extension 3111 via the first and second transmission assemblies, thereby driving the reverse plate 31 to move back and forth in two of the following directions: vertical, first direction A, and second direction B. The first drive assembly 323 drives the reverse plate 31 to move in the other direction. Thus, the same power source can be used to achieve movement of the reverse plate 31 in any two directions; or, the same power source can be used to achieve movement of the reverse plate 31 in three directions.

[0055] like Figure 1 , Figure 7 and Figure 8 As shown, the aforementioned automatic hemming machine also includes a conveying mechanism 8 for rotating the tubular fabric 4 relative to the support assembly 21 about an axis extending along a first direction A. The conveying mechanism 8 and the movable mechanism 3 are arranged at intervals along a second direction B, with at least a portion of the conveying mechanism 8 located below the machine head 61. Thus, the presence of the conveying mechanism 8 automatically realizes the movement of the tubular fabric 4, facilitating subsequent sewing work. The movement speed of the tubular fabric 4 is V2, and the speed V1 of the aforementioned boning plate 31 is greater than the speed V2. Therefore, the boning plate 31 reliably achieves the flipping of the boning position.

[0056] Specifically, such as Figure 7 and Figure 8As shown, the conveying mechanism 8 includes a first mop wheel 81 rotatably mounted on the connecting seat 12, a second mop wheel 82 located above the first mop wheel 81, a first drive mechanism 83 for driving the second mop wheel 82 to rotate around its own axis, and a second drive mechanism 84 for driving the second mop wheel 82 to move up and down. The power output end of the second drive mechanism 84 is connected to the first drive mechanism 83, and the power output end of the first drive mechanism 83 is connected to the rotating shaft of the second mop wheel 82. The rotating shaft extends along the first direction A, and the axis of the rotating shaft is the axis of the second mop wheel 82, and is parallel to the rotation axis of the first mop wheel 81. The needle plate 211 has a clearance opening 2112 to avoid the first mop wheel 81. When the tubular fabric 4 is sleeved on the periphery of the support assembly 21, the tubular fabric 4 is located on the periphery of the first mop wheel 81, and partly located between the first mop wheel 81 and the second mop wheel 82. In addition, the first mop roller 81 and the second mop roller 82 are located between the two connecting arms 6432.

[0057] Thus, by driving the second mop roller 82 upward through the second drive mechanism 84 to leave a gap between it and the first mop roller 81, the tubular fabric 4 can be easily fitted onto the support assembly 21, with part of the fabric located within the gap; by driving the second mop roller 82 downward through the second drive mechanism 84, part of the tubular fabric 4 can abut between the first mop roller 81 and the second mop roller 82; when the first drive mechanism 83 drives the second mop roller 82 to rotate, the tubular fabric 4 can rotate relative to the support assembly 21.

[0058] The second drive mechanism 84 mentioned above is a cylinder or a push rod motor. The first drive mechanism 83 mentioned above can be a motor, or a motor and a transmission component working together, as long as the second mop wheel 82 can be rotated. This will not be described in detail in this embodiment.

[0059] like Figure 1 and Figure 2 As shown, the aforementioned automatic edge-rolling machine also includes a controller and a sensor 9 for sensing the bone position 43. The sensor 9 is located above the support assembly 21, and the signal output terminal of the sensor 9 is electrically connected to the signal input terminal of the controller. The signal output terminal of the controller is electrically connected to the first drive structure 32 and is configured to control the first drive structure 32 to drive the reverse bone plate 31 to perform the bone position 43 flipping process after receiving the signal of bone position 43 sensed by the sensor 9. In this embodiment, the sensor 9 is located on the side of the machine head 61 facing the first drive structure 32 and corresponds to the side edge of the needle plate 211 near the first drive structure 32.

[0060] like Figure 1 and Figure 6As shown, the aforementioned automatic hemming machine also includes a hemming mechanism 5, which includes a hemming hook 51 and a second drive structure 52 connected to the hemming hook 51. The hemming hook 51 is arranged along a first direction A, and its first end has a hook portion 511. Driven by the second drive structure 52, the hemming hook 51 moves to a position where the hook portion 511 extends between the first hemmed edge 41 and the annular fabric 42. While the tubular fabric 4 is in motion, the hemming hook 51 folds the free edge of the first hemmed edge 41 inward to form a second hemmed edge 411, which is defined as the hemming process. This hemming process is upstream of the rib position 43 flipping process. In other words, the rib position 43 is flipped after hemming the tubular fabric 4. Thus, the secondary hemming of the tubular fabric 4 can be automatically achieved, overcoming the tediousness of manual hemming.

[0061] It should be noted that the above-mentioned coil hook 51 is inclined at an angle to the first direction A.

[0062] Furthermore, such as Figure 1 and Figure 6 As shown, a connecting seat 12 is fixedly connected to the workbench 1 above it. A second drive structure 52 is mounted on the connecting seat 12. The second drive structure 52 includes a linkage component that enables the coil hook 51 to move up and down, and a fourth drive component 522 that drives the coil hook 51 to move back and forth along the first direction A. The linkage component is connected to the second end of the coil hook 51, and the power output end of the fourth drive component 522 is connected to the linkage component. Thus, through the cooperation of the linkage component and the fourth drive component 522, the up-and-down movement of the coil hook 51 and its back-and-forth movement along the first direction A are achieved.

[0063] The aforementioned fabric hook 51 first moves to the left from its initial state under the drive of the fourth drive assembly 522 until the hook portion 511 is located to the left of the first rolled edge 41. Then, under the drive of the linkage assembly, it moves downward until it abuts against the annular fabric 42. Subsequently, under the drive of the fourth drive assembly 522, it moves to the right until the hook portion 511 extends between the first rolled edge 41 and the annular fabric 42. Finally, under the drive of the linkage assembly, it moves upward until the hook portion 511 disengages from abutting against the annular fabric 42 below the first rolled edge 41. Subsequently, during the movement of the tubular fabric 4 driven by the conveying mechanism 8, the free edge of the first rolled edge 41 folds inward under the action of the fabric hook 51 to form the second rolled edge 411. In one embodiment, the aforementioned linkage assembly is a fifth cylinder 521, the output end of which is arranged along the vertical direction and connected to the fabric hook 51.

[0064] In another embodiment, such as Figure 1 , Figure 11 and Figure 12As shown, the above-mentioned linkage component includes a tension spring 5231, a connecting shaft 5232, and a vertically arranged connecting plate 5233. The connecting plate 5233 is rotatably connected to the power output end of the fourth drive component 522 through the connecting shaft 5232. The position of the connecting plate 5233 below the connecting shaft 5232 is connected to the second end of the coil hook 51. The position of the connecting plate 5233 above the connecting shaft 5232 is connected to the first end of the tension spring 5231. The second end of the tension spring 5231 is connected to the power output end of the fourth drive component 522. When the reverse bone plate 31 is in the pre-reverse bone position, the reverse bone plate 31 pushes the hook part 511 upward to disengage the hook part 511 from the pressing state with the bone position 43.

[0065] Thus, when the fabric hook 51 enters between the first rolled edge 41 and the annular fabric 42, under the action of the tension spring 5231, the fabric hook 51 will remain in a tilted state at its maximum angle. When the boning plate 31 enters between the first rolled edge 41 and the annular fabric 42, it will give the fabric hook 51 an upward force. The fabric hook 51, along with the connecting plate 5233, will overcome the tension of the tension spring 5231 and rotate upward around the connecting shaft 5232. At this time, the hook part 511 of the fabric hook 51 will no longer press against the boning position 43. At this time, the boning plate 31 can push the boning position 43 forward to complete the boning position 43 action.

[0066] In addition, in order to better guide the rotation of the connecting plate 5233, such as Figure 12 As shown, the connecting plate 5233 has an arc-shaped groove 5234 extending along the rotation direction of the connecting plate 5233 and a fixing member 5235 that slides with the arc-shaped groove 5234 at a position above the connecting shaft 5232. A portion of the fixing member 5235 passes through the arc-shaped groove 5234 and is connected to the power output end of the fourth drive assembly 522.

[0067] The aforementioned fourth drive component 522 is either a fourth cylinder or a push rod motor.

[0068] Furthermore, such as Figure 1 and Figure 2 As shown, a sewing machine 6 is provided on the top surface of the workbench 1. The sewing machine 6 includes a head 61, on which a needle 62 is provided. The connecting seat 12 is located below the head 61 and forms an accommodating space 63 between it and the head 61. The hemming mechanism 5 is located within the accommodating space 63.

[0069] The presence of the aforementioned sewing machine 6 allows for the sewing of the tubular fabric 4 after the bobbin position 43 has been turned over. Specifically, it sews the position on the tubular fabric 4 corresponding to the second rolled edge 411, that is, sewing the second rolled edge, the position on the first rolled edge corresponding to the second rolled edge, and the looped fabric together. It can be understood that the rolled edge mechanism 5 is located within the accommodating space 63 formed by the connecting seat 12 and the machine head 61, which increases the structural compactness of the automatic rolled edge machine and avoids the problem of increased size of the automatic rolled edge machine due to the additional space occupied by the rolled edge mechanism 5.

[0070] like Figure 1 , Figure 2 and Figure 5 As shown, the material support assembly 21 includes a needle plate 211 and at least two support rods in sequence along the circumferential direction. The needle plate 211 and the connecting seat 12 are connected in sequence along the insertion direction of the tubular fabric 4. The needle plate 211 has a needle groove 2111 at the position corresponding to the needle 62 for the needle 62 to pass through. The support rods are located below the needle plate 211. The worktable 1 is provided with a vertically arranged fixed seat 13 located below the needle plate 211. The support rods are arranged on the fixed seat 13 and are arranged to be able to move inside and outside along the fixed seat 13 so that the material support assembly 21 can be closed or opened.

[0071] Thus, when the tubular fabric 4 is sleeved on the support assembly 21, when the support rod moves outward under the drive of the corresponding third drive structure, the support assembly 21 can be opened, thereby opening the tubular fabric 4.

[0072] It should be noted that "inner and outer movement" refers to the movement from the inside out along the fixed seat 13 away from the center of the support assembly 21, with the center of the support assembly 21 as the inside.

[0073] The inward and outward movement of the support rod can be achieved manually or actively driven by a power source. In this embodiment, as... Figure 5 As shown, there are three support rods: a first support rod 212, a second support rod 213, and a lower stop rod 214. The first support rod 212 and the second support rod 213 are arranged at intervals along a second direction B. The first mop wheel 81 is located between the first support rod 212 and the second support rod 213, and the second support rod 213 is arranged close to the first drive assembly 323, that is, the second support rod 213 is located to the right of the first support rod 212. The lower stop rod 214 is located below the first support rod 212 and the second support rod.

[0074] To achieve the inward and outward movement of the first support rod 212, specifically, as follows: Figure 5As shown, a first fixing plate 2121 is provided on the first support rod 212, arranged parallel to the fixing base 13. A first guide rail 131 and a first guide portion 2122 are matched and slidably engaged in the second direction B between the first fixing plate 2121 and the fixing base 13. The first guide portion 2122 is provided on the first fixing plate 2121, and the first guide rail 131 extends along the second direction B and is fixed to the fixing base 13. A locking member 2123 is provided on the first guide portion 2122, and the first guide rail 131 is provided with mounting holes spaced apart along its own length direction. The locking member 2123 fixes the first guide portion 2122 on the first guide rail 131 by being installed in the corresponding mounting holes.

[0075] To achieve the inward and outward movement of the lower stop lever 214, specifically, as follows: Figure 5 As shown, a sixth cylinder 132 is mounted on the fixed base 13. The power output end of the sixth cylinder 132 is connected to the lower stop lever 214 to drive the lower stop lever 214 to move up and down. To achieve the inward and outward movement of the second support rod 213, specifically, a seventh cylinder 133 and a movable rod 134 are mounted on the fixed base 13. One end of the seventh cylinder 133 is rotatably connected to the fixed base 13, and the power output end of the seventh cylinder 133 is connected to the movable rod 134 near the middle position. The movable rod 134 is arranged vertically, and its lower end is rotatably connected to the fixed base 13. The upper end of the movable rod 134 is connected to the second support rod 213 to drive the second support rod 213 to move back and forth along the second direction B. In order to guide the movement of the second support rod 213, a second fixing plate 2131 is installed on the second support rod 213. A second guide rail 135 and a second guide part 2132 are matched between the second fixing plate 2131 and the fixing seat 13 and slide along the second direction B. The second guide rail 135 extends along the second direction B.

[0076] In addition, such as Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, a presser foot 7 is positioned above the needle plate 211, between the second drag roller 82 and the second support rod 213. The presser foot 7 has a through hole 711 at the position corresponding to the needle 62 for the needle to pass through. A fourth drive structure 64 is provided on the machine head 61 to drive the presser foot 7 up and down, and the power output end of the fourth drive structure 64 is connected to the presser foot 7. The presence of the presser foot 7 provides pressure and positioning for the tubular fabric during sewing, facilitating the sewing operation.

[0077] Specifically, such as Figure 2 , Figure 7 and Figure 8As shown, the presser foot 7 includes a presser foot portion 71 and a retaining edge portion 72. The fourth drive structure 64 includes a sixth drive assembly 641 for driving the retaining edge portion 72 to move up and down, and a seventh drive assembly 642 for driving the presser foot portion 71 to move up and down. The perforation 711 is located on the presser foot portion 71. The retaining edge portion 72 and the presser foot portion 71 are arranged sequentially along the insertion direction of the tubular fabric 4. The retaining edge portion 72 can be located on the movement path of the reversed plate 31 along the second direction B. When the reversed plate 31 moves to the side of the retaining edge portion 72, the retaining edge portion 72 moves upward under the drive of the sixth drive assembly 641, so that the reversed plate 31 can move to a position below the retaining edge portion 72. The insertion direction of the tubular fabric 4 is the first direction A.

[0078] In this way, by controlling the edge guard 72 and the pressure foot 71 separately, reliable pressure on the first rolled edge 41 can be achieved without affecting the avoidance of the reverse plate 31, and the operation of the reverse plate 31 can be better coordinated.

[0079] Specifically, the sixth drive assembly 641 and the seventh drive assembly 642 are arranged sequentially at intervals along the insertion direction of the tubular fabric 4, and each includes a second driver 6431 and a connecting arm 6432 arranged along the second direction B. The first end of the connecting arm 6432 is rotatably connected to the worktable 1 or the machine head 61 via a first mounting shaft extending along the first direction A. The second ends of the two connecting arms 6432 are rotatably connected to the side guard portion 72 and the presser foot portion 71, respectively. The power output end of the second driver 6431 is rotatably connected to the corresponding side connecting arm 6432 via a second mounting shaft. The second mounting shaft is located between the first end and the second end of the connecting arm 6432 and extends along the left-right direction. The aforementioned second driver 6431 is a cylinder or a push rod motor.

[0080] When the reinforcing plate 31, which presses against the annular fabric 42, moves forward under the drive of the third drive assembly 325 to a position behind the guardrail 72, the guardrail 72 moves upward under the drive of the sixth drive assembly 641, while the reinforcing plate 31 continues to move forward until it is below the guardrail 72 and stops moving. Then, when the reinforcing plate 31 moves backward out of the position below the guardrail 72, the guardrail 72 moves downward under the drive of the sixth drive assembly 641 to press against the tubular fabric. At the same time, the reinforcing plate 31 returns to its initial position under the drive of the first drive structure 32. When the rib 43 moves to a position below or near the needle 62, the sewing machine 6 begins sewing. That is, sewing can begin at the rib position or at a position upstream of the rib position.

[0081] It should be noted that "the position near the bottom of the needle 62" means that the bone position 43 has not yet reached the bottom of the needle 62. In other words, sewing can begin at the position upstream of the bone position. The specific position is determined according to the customer's specific needs.

[0082] When the stitches are about to complete one round, the fabric hook 51 returns to its initial state under the drive of the second drive structure 52. The end of the stitching can be selected according to actual needs. For example, the stitching can be ended at the starting position (i.e., the position where the stitching begins) after completing one round, or it can be ended after stitching 1, 2, 3, or other stitches. The stitching can also be ended at the bone position or at a position downstream of the bone position.

[0083] 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.

[0084] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. An automatic edge-rolling machine, comprising a worktable, characterized in that, It also includes a material support mechanism and a moving mechanism connected to the worktable, wherein, The material support mechanism includes a material support assembly extending along a first direction for supporting a tubular fabric. The tubular fabric is fitted around the periphery of the material support assembly along the first direction and is a fabric with exposed ribs and an open end folded outward to form a first rolled edge. The portion of the tubular fabric other than the first rolled edge is defined as an annular fabric. The movable mechanism includes a reverse bone plate and a first driving structure connected to the reverse bone plate. The reverse bone plate can move to a pressing position and a pre-reverse bone position under the drive of the first driving structure. When the reverse bone plate is in the pressing position, the bottom surface of the reverse bone plate abuts against the position on the annular fabric located next to the first rolled edge. When the reverse bone plate moves from the pressing position to the pre-reverse bone position, a portion of the reverse bone plate is inserted between the annular fabric and the first rolled edge. Under the drive of the first driving structure, the reverse bone plate can move along a second direction to flip the bone position, which is defined as a bone position flipping process. The second direction is at an angle to both the first direction and the up and down direction.

2. The automatic edge-rolling machine according to claim 1, characterized in that, The reversed plate includes an L-shaped reversed body, which includes an extension extending along the second direction and a side portion connected to a first end of the extension. The second end of the extension is connected to the power output end of the first drive structure. When the reversed plate is in the pre-reversed position, the side portion is located between the annular fabric and the first rolled edge.

3. The automatic edge-rolling machine according to claim 1, characterized in that, A mounting base fixedly connected to the workbench is provided above the workbench. The first drive structure includes a first mounting plate, a second mounting plate, a first drive component, a second drive component, and a third drive component. The first drive component is fixedly mounted on the first mounting plate, and the power output end of the first drive component is connected to the reverse bone plate to drive the reverse bone plate to move up and down. The second drive component is fixedly mounted on the second mounting plate, and the power output end of the second drive component is connected to the first mounting plate to drive the first drive component and the reverse bone plate to move back and forth along the first direction. The third drive component is mounted on the mounting base, and the power output end of the third drive component is connected to the second mounting plate to drive the second drive component, the first drive component, and the reverse bone plate to move along the second direction.

4. The automatic edge-rolling machine according to claim 1, characterized in that, The automatic hemming machine further includes a hemming mechanism, which includes a hemming hook and a second driving structure driven by the hemming hook. The hemming hook is arranged along the first direction, and a hook portion is provided at the first end of the hemming hook. The hemming hook can move under the drive of the second driving structure to the position where the hook portion extends between the first hemmed edge and the annular fabric. When the tubular fabric is in motion, the free edge of the first hemmed edge is folded inward to form a second hemmed edge, which is defined as the hemming process. The hemming process is located upstream of the bone position flipping process.

5. The automatic edge-rolling machine according to claim 4, characterized in that, A connecting seat is fixedly connected to the workbench above the workbench. The second drive structure is disposed on the connecting seat. The second drive structure includes a linkage component that enables the coil hook to move up and down and a fourth drive component that drives the coil hook to move back and forth along the first direction. The linkage component is connected to the second end of the coil hook, and the power output end of the fourth drive component is connected to the linkage component.

6. The automatic edge-rolling machine according to claim 5, characterized in that, The linkage component is a fifth cylinder, the output end of which is arranged vertically and connected to the coil hook; or, The linkage component includes a tension spring, a connecting shaft, and a vertically arranged connecting plate. The connecting plate is rotatably connected to the power output end of the fourth drive component via the connecting shaft. The connecting plate is located below the connecting shaft and connected to the second end of the coil hook. The connecting plate is located above the connecting shaft and connected to the first end of the tension spring. The second end of the tension spring is connected to the power output end of the fourth drive component. When the reverse bone plate is in the pre-reverse bone position, the reverse bone plate pushes the hook upward to disengage the hook from the pressure state against the bone position.

7. The automatic edge-rolling machine according to claim 5, characterized in that, A sewing machine is mounted on the top surface of the workbench. The sewing machine includes a sewing head with a needle. A connecting seat is located below the sewing head and forms an accommodating space with it. The hemming mechanism is located within the accommodating space.

8. The automatic edge-rolling machine according to claim 7, characterized in that, The material support assembly includes a needle plate and at least two support rods in sequence along the circumferential direction. The needle plate and the connecting seat are connected in sequence along the insertion direction of the tubular fabric. The needle plate has a needle groove at the position corresponding to the needle for the needle to pass through. The support rods are located below the needle plate. The worktable has a vertically arranged fixed seat located below the needle plate. The support rods are arranged on the fixed seat and are arranged to move in and out of the fixed seat so that the material support assembly can retract or expand.

9. The automatic edge-rolling machine according to claim 8, characterized in that, A presser foot is provided above the needle plate. The presser foot has a through hole at the position corresponding to the needle for the needle to pass through. A fourth drive structure is provided on the machine head to drive the presser foot to move up and down. The power output end of the fourth drive structure is connected to the presser foot.

10. The automatic edge-rolling machine according to claim 9, characterized in that, The presser foot includes a presser foot portion and a guard edge portion. The fourth drive structure includes a sixth drive component for driving the guard edge portion to move up and down and a seventh drive component for driving the presser foot portion to move up and down. The guard edge portion and the presser foot portion are arranged sequentially along the insertion direction of the tubular fabric. The guard edge portion can be located on the movement path of the reverse bone plate along the second direction. When the reverse bone plate moves to the side of the guard edge portion, the guard edge portion moves upward under the drive of the sixth drive component, so that the reverse bone plate can move to a position below the guard edge portion.

11. The automatic edge-rolling machine according to claim 10, characterized in that, It also includes a conveying mechanism for rotating the tubular fabric about an axis extending along a first direction, the conveying mechanism being spaced apart from the movable mechanism along the second direction, and at least a portion of the conveying mechanism being located below the machine head.

12. The automatic edge-rolling machine according to claim 11, characterized in that, The conveying mechanism includes a first drag wheel rotatably mounted on the connecting seat, a second drag wheel located above the first drag wheel, a first drive mechanism for driving the second drag wheel to rotate around its own axis, and a second drive mechanism for driving the second drag wheel to move up and down. The power output end of the second drive mechanism is connected to the first drive mechanism, and the power output end of the first drive mechanism is connected to the rotating shaft of the second drag wheel. The rotating shaft extends along the first direction, and the axis of the rotating shaft is the axis of the second drag wheel and is parallel to the rotation axis of the first drag wheel. The needle plate has a clearance opening to avoid the first drag wheel. When the tubular fabric is sleeved around the support assembly, the tubular fabric is located around the first drag wheel and partially located between the first drag wheel and the second drag wheel.

13. The automatic edge-rolling machine according to claim 12, characterized in that, The sixth and seventh drive components are arranged sequentially at intervals along the insertion direction of the tubular fabric, and each includes a driver and a connecting arm arranged along the second direction. The first end of the connecting arm is rotatably connected to the worktable or machine head via a first mounting shaft extending along the first direction. The second ends of the two connecting arms are rotatably connected to the edge guard and the presser foot, respectively. The power output end of the driver is rotatably connected to the corresponding side connecting arm via a second mounting shaft. The second mounting shaft is located between the first and second ends of the connecting arm. The first and second mop rollers are located between the two connecting arms.

14. The automatic edge-rolling machine according to any one of claims 1 to 13, characterized in that, It also includes a controller and a sensor for sensing the bone position. The sensor is located above the support assembly, and the signal output terminal of the sensor is electrically connected to the signal input terminal of the controller. The signal output terminal of the controller is electrically connected to the first drive structure and is configured to control the first drive structure to drive the reverse bone plate to perform a bone position flipping process after receiving a signal from the sensor that the bone position is sensed.

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