Pocket cloth feeding device capable of identifying and correcting front and back of cloth for a hemming machine

Abstract

The utility model discloses a pocket cloth feeding device of hemming machine can be used to cloth front and back identification and correct, including frame and setting material mechanism, material taking mechanism and feeding mechanism respectively in the frame, feeding mechanism is located the rear of the storage material mechanism, feeding mechanism includes at least two left and right distribution on the frame and the front and back extension conveyer belt, installs on the frame and is used for driving the rotation of conveyer belt feeding drive arrangement, the front extension respectively installs between every two adjacent conveyer belt and can be forward and backward turnover several turnover rods, installs on the frame and is used for driving turnover rod forward and backward turnover turnover drive arrangement, the imaging equipment of fixed on conveyer belt and turnover rod top and is used for with the vision processing module of imaging equipment cooperation. The utility model can realize the front and back identification of pocket cloth and can correct the pocket cloth of wrong direction in the process to pocket cloth feeding, avoids the subsequent appearance sewing error.

Description

Technical Field

[0001] This utility model relates to the field of hemming machine technology, specifically to a pocket fabric feeding device for hemming machines that can be used to identify and correct the front and back sides of fabric. Background Technology

[0002] Existing pocket hemming and sewing machines are devices used to hem and sew pocket fabric. They typically include a frame, and on the frame, a material storage mechanism, a feeding mechanism, a hemming mechanism, and a sewing machine head. Specifically, a robotic arm feeds the fabric from the storage mechanism to the feeding mechanism, which then transports the pocket fabric. Next, the hemming mechanism hems the fabric, and after hemming, the sewing machine head sews the fabric. After sewing, the thread is cut manually or by a thread-cutting mechanism.

[0003] Regarding the feeding mechanism, application publication number CN112376175A discloses a pocket fabric feeding device for a hemming machine, which specifically discloses a pocket fabric feeding frame, a pocket fabric lifting mechanism, a pocket fabric slitting mechanism, a pocket fabric receiving mechanism, and a pocket fabric loading mechanism; the pocket fabric lifting mechanism includes a pocket fabric lifting plate, a pocket fabric lifting plate driving device, and a pocket fabric positioning device; the pocket fabric lifting plate driving device drives the pocket fabric lifting plate to rise for continuous feeding, and the pocket fabric positioning device keeps the stacked pocket fabric on the pocket fabric lifting plate neat; the pocket fabric slitting mechanism includes a picking robot and a picking robot driving device; after the picking robot sequentially grabs the pocket fabric on the pocket fabric lifting plate, the picking robot driving device drives the picking robot to send the pocket fabric to the pocket fabric receiving mechanism, and then the pocket fabric loading mechanism sends the pocket fabric on the pocket fabric receiving mechanism to the hemming machine.

[0004] Currently, to speed up the cutting process, before cutting individual pocket fabric pieces, workers often fold a long strip of fabric together using an accordion fold. Then, they cut the pocket fabric shape directly from top to bottom in the middle of the folded fabric, allowing for the cutting of multiple pocket fabric pieces at once and improving efficiency. However, this cutting method results in some pocket fabric pieces being right-side up while others are right-side down. Manually sorting these cut pocket fabric pieces (i.e., sorting them all right-side up) would be very labor-intensive. If they are not sorted and are simply fed into the pocket fabric feeding device of the hemming machine for subsequent hemming and sewing, sewing errors will occur on different workpieces, meaning some pocket fabric pieces on a workpiece will be right-side out while others will be wrong-side out.

[0005] Therefore, improvements to existing technologies are necessary. Utility Model Content

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a pocket fabric feeding device for a hemming machine that can identify and correct the front and back sides of the fabric. This device can identify the front and back sides of the pocket fabric during the feeding process and correct pocket fabrics that are facing the wrong direction, eliminating the trouble of manual sorting and avoiding subsequent sewing errors.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A pocket fabric feeding device for a hemming machine, used for identifying and correcting the front and back sides of fabric, includes a frame and a storage mechanism, a picking mechanism, and a feeding mechanism respectively disposed on the frame; the feeding mechanism is located behind the storage mechanism; the feeding mechanism includes at least two conveyor belts distributed laterally on the frame and extending forward and backward, a feeding drive device mounted on the frame for driving the conveyor belts to rotate, a plurality of flipping rods extending forward and respectively mounted between each of the two adjacent conveyor belts and capable of flipping forward and backward, a flipping drive device mounted on the frame for driving the flipping rods to flip forward and backward, and an imaging device fixed above the conveyor belts and flipping rods. The equipment includes a vision processing module for use with the imaging device; the storage mechanism is used to store multiple stacked pocket fabrics, and the picking mechanism is used to feed the pocket fabrics in the storage mechanism onto the conveyor belt. When the conveyor belt conveys the pocket fabrics backward to a preset position, the imaging device takes a picture of the pocket fabrics. After the pictures are compared and analyzed by the vision processing module, pocket fabrics that meet the requirements for the front of the fabric are continued to be fed backward by the conveyor belt to the next process. Pocket fabrics that do not meet the requirements for the front of the fabric are driven by the flipping drive device to flip the flipping rod backward, thereby causing the pocket fabric to flip 180° from front to back, and then it is fed backward by the conveyor belt to the next process.

[0009] Furthermore, the conveyor belt includes at least two narrow conveyor belts and two wide conveyor belts; the width of the wide conveyor belt is greater than the width of the narrow conveyor belt; each of the narrow conveyor belts and the wide conveyor belt is distributed sequentially from one side of the frame to the other; a turning rod driven by the turning drive device is provided between two adjacent narrow conveyor belts, between two adjacent wide conveyor belts, and between one adjacent narrow conveyor belt and one wide conveyor belt.

[0010] Furthermore, the gap between two adjacent narrow conveyor belts is smaller than the gap between two adjacent wide conveyor belts; the gap between two adjacent wide conveyor belts is equal to or greater than the gap between one adjacent narrow conveyor belt and one adjacent wide conveyor belt.

[0011] Furthermore, the conveyor belt includes three narrow conveyor belts and three wide conveyor belts.

[0012] Furthermore, the feeding mechanism also includes a feeding shaft, a driving wheel, and a driven wheel; the feeding drive device is a motor; the feeding shaft is connected to the output end of the feeding drive device; the driving wheels are mounted on the feeding shaft and their number is the same as the number of conveyor belts; the driven wheels are arranged opposite to the driving wheels and their number is the same as the number of driving wheels; each end of the conveyor belt is respectively connected to one driving wheel and one driven wheel.

[0013] Furthermore, the feeding mechanism also includes a flipping shaft; the flipping drive device is a motor; the flipping shaft is connected to the output end of the flipping drive device; one end of each flipping rod is fixed to the flipping shaft via a connecting block.

[0014] Furthermore, the storage mechanism is used to store stacked pocket fabric and can be used to drive the stacked pocket fabric to rise gradually.

[0015] Furthermore, the material handling mechanism includes a front and rear drive module mounted on the frame, a material handling upper and lower cylinder mounted on the output end of the front and rear drive module that can move back and forth, a movable frame mounted on the output shaft of the material handling upper and lower cylinder that can move up and down, and a plurality of vacuum suction cups mounted on the bottom of the movable frame.

[0016] Furthermore, the vacuum suction cups are provided in at least two positions distributed on the left and right sides.

[0017] Furthermore, the imaging device is an industrial camera; the imaging device is fixed to one side of the frame by a support frame.

[0018] The beneficial effects of this utility model are as follows:

[0019] The storage, retrieval, and feeding mechanisms of this invention work together to smoothly and continuously feed pocket fabric. Furthermore, during the conveyor belt feeding process, the feeding mechanism can use imaging equipment to identify the front and back of the pocket fabric. Subsequently, a flipping drive device can be used to flip the flipping rod, turning the pocket fabric from reversed to right-side up, thus preventing sewing errors during subsequent hemming and sewing. Therefore, this invention can identify the front and back of the pocket fabric during feeding and correct incorrectly oriented pocket fabric. This design eliminates the hassle of manual sorting and avoids subsequent sewing errors, making it highly practical. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of this utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the material handling mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the feeding mechanism of this utility model. Figure 1 ;

[0024] Figure 5 This is a schematic diagram of the feeding mechanism of this utility model. Figure 2 ;

[0025] Figure 6 This is a schematic diagram of the present invention in operation.

[0026] Figure Labels

[0027] 1. Rack;

[0028] 2. Material storage mechanism;

[0029] 3. Material handling mechanism; 31. Front and rear drive module; 32. Material handling upper and lower cylinders; 33. Moving frame; 34. Vacuum suction cup;

[0030] 4. Feeding mechanism; 41. Conveyor belt; 411. Narrow conveyor belt; 412. Wide conveyor belt; 413. Gap; 42. Feeding drive device; 43. Tilting rod; 431. Connecting block; 44. Tilting drive device; 45. Imaging equipment; 46. Feeding shaft; 47. Drive wheel; 48. Driven wheel; 49. Tilting shaft; 50. Support frame;

[0031] 5. Pocket fabric. Detailed Implementation

[0032] The utility model will be further described below with reference to the accompanying drawings and specific embodiments. The following description is merely exemplary and does not limit the scope of protection of the utility model.

[0033] like Figures 1-5 As shown, a pocket fabric feeding device for a hemming machine that can be used to identify and correct the front and back sides of fabric includes a frame 1 and a storage mechanism 2, a picking mechanism 3 and a feeding mechanism 4 respectively disposed on the frame 1; the feeding mechanism 4 is located behind the storage mechanism 2.

[0034] like Figures 1-5As shown, the feeding mechanism 4 includes at least two conveyor belts 41 that are distributed left and right on the frame 1 and extend forward and backward, a feeding drive device 42 mounted on the frame 1 for driving the conveyor belts 41 to rotate, several flipping rods 43 that extend forward and are respectively mounted between each of the two adjacent conveyor belts 41 and can be flipped forward and backward, a flipping drive device 44 mounted on the frame 1 for driving the flipping rods 43 to flip forward and backward, an imaging device 45 fixed above the conveyor belts 41 and the flipping rods 43, and a vision processing module (not shown) for cooperating with the imaging device 45. Of course, the vision processing module is used to electrically connect to the control center in order to process the corresponding image data.

[0035] During use, the storage mechanism 2 is used to store multiple stacked pocket fabrics 5, and the picking mechanism 3 is used to send the pocket fabrics 5 in the storage mechanism 2 to the conveyor belt 41. When the conveyor belt 41 conveys the pocket fabrics 5 backward to the preset position, the imaging device 45 takes a picture of the pocket fabrics 5. After the pictures are compared and analyzed by the visual processing module, the pocket fabrics 5 that meet the requirements of the front of the fabric are continued to be sent to the next process by the conveyor belt 41. The pocket fabrics 5 that do not meet the requirements of the front of the fabric are driven by the flipping drive device 44 to flip the flipping rod 43 backward, thereby causing the pocket fabrics 5 to flip 180° from front to back, and then are sent to the next process by the conveyor belt 41.

[0036] like Figure 1 , Figure 4 and Figure 5 As shown, in this embodiment, the conveyor belt 41 includes at least two narrow conveyor belts 411 and wide conveyor belts 412; the width of the wide conveyor belt 412 is greater than the width of the narrow conveyor belt 411; the narrow conveyor belts 411 and wide conveyor belts 412 are distributed sequentially from one side of the frame 1 to the other side at intervals, that is, there is a gap 413 between adjacent conveyor belts 41; a turning rod 43 driven by a turning drive device 44 is provided between two adjacent narrow conveyor belts 411, between two adjacent wide conveyor belts 412, and between one adjacent narrow conveyor belt 411 and one wide conveyor belt 412. Therefore, with the above arrangement, since the width of the wide conveyor belt 412 is wider, and it is combined with the narrower narrow conveyor belt 411, this design can reduce the number of conveyor belts 41 used when a predetermined width of conveying area is desired. For example, if all conveyor belts 411 are of the same size, more narrow conveyor belts 41 would be needed to achieve the same conveying width. However, combining them with some wide conveyor belts 412 can significantly increase the conveying width. Furthermore, the at least two narrow conveyor belts 411 are used to convey smaller pocket fabrics 5, while the combination of narrow conveyor belts 411 and wide conveyor belts 412 can be used to convey larger pocket fabrics 5. The specific number of conveyor belts 41 used can be selected according to the specific size of the pocket fabric 5, and will not be further exemplified here.

[0037] like Figure 1 , Figure 4 and Figure 5 As shown, specifically, the gap 413 between two adjacent narrow conveyor belts 411 is smaller than the gap 413 between two adjacent wide conveyor belts 412; the gap 413 between two adjacent wide conveyor belts 412 is equal to or greater than the gap 413 between an adjacent narrow conveyor belt 411 and a wide conveyor belt 412. Therefore, by setting the gap 413 between two adjacent wide conveyor belts 412 to be equal to or greater than the gap 413 between an adjacent narrow conveyor belt 411 and a wide conveyor belt 412, it is possible to further extend the wide conveyor belts 412 outwards, which helps to further increase the conveying width and reduce the number of conveyor belts used.

[0038] like Figure 1 , Figure 4 and Figure 5 As shown, in this embodiment, the conveyor belt 41 includes three narrow conveyor belts 411 and three wide conveyor belts 412. However, those skilled in the art should know that the specific number of narrow conveyor belts 411 and wide conveyor belts 412 used can be selected and set according to actual needs, which will not be described in detail here.

[0039] like Figure 1 , Figure 4 and Figure 5 As shown, in this embodiment, the feeding mechanism 4 further includes a feeding shaft 46, a drive wheel 47, and a driven wheel 48; the feeding drive device 42 is a motor; the feeding shaft 46 is connected to the output end of the feeding drive device 42 via a transmission connection, specifically through a synchronous belt assembly (not shown in the figure). Since the synchronous belt assembly is existing technology, it will not be described in detail here; the drive wheels 47 are mounted on the feeding shaft 46 and their number is the same as the number of conveyor belts 41; the driven wheels 48 are arranged opposite to the drive wheels 47 and their number is the same as the number of drive wheels 47; each end of the conveyor belt 41 is respectively connected to a drive wheel 47 and a driven wheel 48. Therefore, with the above arrangement, the feeding drive device 42 can drive the feeding shaft 46 and the drive wheel 47 to rotate, and then correspondingly drive the conveyor belt 41 to rotate, so as to achieve the effect of conveying the pocket fabric 5.

[0040] like Figure 1 , Figure 4 and Figure 5As shown, in this embodiment, the feeding mechanism 4 further includes a flipping shaft 49; the flipping drive device 44 is a motor; the flipping shaft 49 is connected to the output end of the flipping drive device 44; one end of each flipping rod 43 is correspondingly fixed to the flipping shaft 49 through a connecting block 431. Therefore, by setting the flipping shaft 49, the flipping drive device 44 can drive the flipping shaft 49 to simultaneously drive each flipping rod 43 to flip, so as to push the pocket fabric 5 on the conveyor belt 41 to flip.

[0041] In this embodiment, the storage mechanism 2 is used to store the stacked pocket fabric 5 and can also be used to drive the stacked pocket fabric 5 to gradually rise so that the retrieval mechanism 3 can smoothly pick up the pocket fabric 5. Since the structure of the storage mechanism 2 can adopt existing technology, it will not be described in detail here.

[0042] like Figure 3 As shown, in this embodiment, the material handling mechanism 3 includes a front and rear drive module 31 mounted on the frame 1, a material handling up and down cylinder 32 movably mounted on the output end of the front and rear drive module 31, a movable frame 33 movably mounted on the output shaft of the material handling up and down cylinder 32, and a plurality of vacuum suction cups 34 mounted on the bottom of the movable frame 33. Preferably, at least two vacuum suction cups 34 are arranged horizontally, specifically four. Therefore, with the above arrangement, the front and rear drive module 31 can drive the vacuum suction cups 34 to move forward and backward, while the up and down cylinder 32 can drive the vacuum suction cups 34 to move up and down, thereby enabling the corresponding movement to pick up the pocket fabric 5 in the storage mechanism 2 and send it to the feeding mechanism 4.

[0043] Preferably, the imaging device 45 is an industrial camera, and the imaging device 45 is fixed to one side of the frame 1 by a support frame 50.

[0044] Combination Figure 6 The following describes the specific working principle of this utility model in order to help you understand it:

[0045] S1. Multiple unsorted pocket fabrics 5 with their front and back sides mixed up are manually stacked in the preset workstation of the storage mechanism 2.

[0046] S2. After the equipment is started, the material handling mechanism 3 picks up the first pocket fabric 5 located on the upper surface of multiple pocket fabrics 5, and then places it at the front end of the conveyor belt 41. If it is a small pocket fabric 5, the pocket fabric 5 can only abut against each narrow conveyor belt 411. If it is a large pocket fabric 5, the pocket fabric 5 can abut against each narrow conveyor belt 411 and each wide conveyor belt 412 respectively. The specific setting depends on the actual needs.

[0047] S3. The conveyor belt 41 conveys the pocket fabric 5 backward to the bottom of the imaging device 45, and the imaging device 45 takes a picture of the pocket fabric 5. The picture is then compared and analyzed by the visual processing module.

[0048] S4. If the image taken by the imaging device 45 meets the requirements after analysis, for example, if the pocket fabric 5 is facing up, then the conveyor belt 41 continues to transport it to the next process. If the image taken by the imaging device 45 does not meet the requirements after analysis, for example, if the pocket fabric 5 is facing down, then the flipping drive device 44 drives the flipping rod 43 to move and flip it backward, thereby causing the pocket fabric 5 to flip 180° from front to back, so that it can change from facing down to facing up. Then the flipping rod 43 resets, and then the pocket fabric 5 is transported to the next process by the conveyor belt 41.

[0049] S5. The process from S2 to S4 above is repeated continuously.

[0050] In summary, the cooperation of the storage mechanism 2, the picking mechanism 3, and the feeding mechanism 4 of this invention can smoothly complete the continuous feeding of pocket fabric 5. Furthermore, during the feeding process using the conveyor belt 41, the feeding mechanism 5 can also use the imaging device 45 to identify the front and back of the pocket fabric 5. Subsequently, the flipping drive device 44 can drive the flipping rod 43 to flip the pocket fabric 5 from the reverse side to the right side, thus avoiding sewing errors during subsequent hemming and sewing. Therefore, this invention can identify the front and back of the pocket fabric 5 during the feeding process and correct pocket fabric with incorrect orientation. This design eliminates the hassle of manual sorting and avoids subsequent sewing errors, making it highly practical.

[0051] This utility model is not limited to the above-described embodiments. If any modifications or variations to this utility model do not depart from the spirit and scope of this utility model, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this utility model, then this utility model also intends to include such modifications and variations.

Claims

1. A pocket fabric feeding device for a hemming machine, which can be used to identify and correct the front and back sides of the fabric, characterized in that: It includes a frame and a material storage mechanism, a material picking mechanism and a material feeding mechanism respectively disposed on the frame; The feeding mechanism is located behind the storage mechanism; The feeding mechanism includes at least two conveyor belts that are distributed left and right on the frame and extend forward and backward, a feeding drive device mounted on the frame for driving the conveyor belts to rotate, a plurality of flipping rods that extend forward and are respectively mounted between each of the two adjacent conveyor belts and can be flipped forward and backward, a flipping drive device mounted on the frame for driving the flipping rods to flip forward and backward, an imaging device fixed above the conveyor belts and the flipping rods, and a vision processing module for cooperating with the imaging device. The storage mechanism is used to store multiple stacked pocket fabrics. The picking mechanism is used to feed the pocket fabrics in the storage mechanism to the conveyor belt. When the conveyor belt conveys the pocket fabrics backward to a preset position, the imaging device takes a picture of the pocket fabrics. After the picture is compared and analyzed by the visual processing module, the pocket fabrics that meet the requirements for the front of the fabric are continued to be fed backward to the next process by the conveyor belt. The pocket fabrics that do not meet the requirements for the front of the fabric are driven by the flipping drive device to flip the flipping rod backward, thereby causing the pocket fabrics to flip 180° from front to back, and then they are fed backward to the next process by the conveyor belt.

2. The pocket fabric feeding device for the hemming machine according to claim 1, which can be used to identify and correct the front and back sides of the fabric, is characterized in that: The conveyor belt includes at least two narrow conveyor belts and two wide conveyor belts; the width of the wide conveyor belt is greater than the width of the narrow conveyor belt; the narrow conveyor belts and the wide conveyor belts are distributed alternately from one side of the frame to the other. A tilting rod driven by the tilting drive device is provided between two adjacent narrow conveyor belts, between two adjacent wide conveyor belts, and between one adjacent narrow conveyor belt and one wide conveyor belt.

3. The pocket fabric feeding device for the hemming machine according to claim 2, which can be used to identify and correct the front and back sides of the fabric, is characterized in that: The gap between two adjacent narrow conveyor belts is smaller than the gap between two adjacent wide conveyor belts; the gap between two adjacent wide conveyor belts is equal to or greater than the gap between one adjacent narrow conveyor belt and one adjacent wide conveyor belt.

4. The pocket fabric feeding device for the hemming machine according to claim 2, which can be used to identify and correct the front and back sides of the fabric, is characterized in that: The conveyor belt includes three narrow conveyor belts and three wide conveyor belts.

5. The pocket fabric feeding device for the hemming machine according to claim 1, which can be used to identify and correct the front and back sides of the fabric, is characterized in that: The feeding mechanism further includes a feeding shaft, a driving wheel, and a driven wheel; the feeding drive device is a motor; the feeding shaft is connected to the output end of the feeding drive device; the driving wheels are mounted on the feeding shaft and their number is the same as the number of conveyor belts; the driven wheels are arranged opposite to the driving wheels and their number is the same as the number of driving wheels; each end of the conveyor belt is respectively connected to one driving wheel and one driven wheel.

6. The pocket fabric feeding device for the hemming machine according to claim 1, which can be used to identify and correct the front and back sides of the fabric, is characterized in that: The feeding mechanism also includes a rotating shaft; the rotating drive device is a motor; the rotating shaft is connected to the output end of the rotating drive device; one end of each rotating rod is fixed to the rotating shaft via a connecting block.

7. The pocket fabric feeding device for the hemming machine according to claim 1, which can be used to identify and correct the front and back sides of the fabric, is characterized in that: The storage mechanism is used to store stacked pocket fabric and can be used to drive the stacked pocket fabric to rise gradually.

8. The pocket fabric feeding device for the hemming machine according to claim 1, which can be used to identify and correct the front and back sides of the fabric, is characterized in that: The material handling mechanism includes a front and rear drive module mounted on the frame, a material handling upper and lower cylinder mounted on the output end of the front and rear drive module that can move back and forth, a movable frame mounted on the output shaft of the material handling upper and lower cylinder that can move up and down, and a number of vacuum suction cups mounted on the bottom of the movable frame.

9. The pocket fabric feeding device for the hemming machine according to claim 8, which can be used to identify and correct the front and back sides of the fabric, is characterized in that: The vacuum suction cups are provided in at least two positions distributed on the left and right.

10. A pocket fabric feeding device for a hemming machine according to any one of claims 1-9, characterized in that: The imaging device is an industrial camera; the imaging device is fixed to one side of the frame by a support frame.

Images