Label feeding device and nailing machine

By designing a label feeding device, the first gripper stacks and aligns the labels, and then the second gripper transports them to the sewing position. This solves the problem of low positional accuracy of various labels on clothing, and improves sewing efficiency and garment quality.

CN121629640APending Publication Date: 2026-03-10ZHUHAI YUNKONG RUIQI NUMERICAL CONTROL SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-26
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing label feeding devices have low positional accuracy when stacking and sewing multiple labels onto garments, resulting in poor garment processing quality and aesthetics.

Method used

Design a label feeding device that uses a first gripper to stack and align multiple labels sequentially, and then a second gripper to transport them to the sewing position, ensuring the positioning accuracy and alignment of the labels on the garment.

Benefits of technology

It improves the efficiency of label sewing, enhances the processing quality and aesthetics of clothing, and ensures that various labels are accurately positioned and aligned on clothing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a label feeding device and discloses a nailing machine with the label feeding device, the label feeding device comprises a rack, a first carrying mechanism and a second carrying mechanism, a supporting plate on the rack is provided with a feeding station and a plurality of feeding stations, and the feeding stations are respectively used for placing various labels; the first carrying mechanism comprises a plurality of first clamping jaws, when the multiple first clamping jaws reciprocate each time, the stroke of moving the labels on all the feeding stations towards the feeding station is equal to the distance between any two adjacent feeding stations, and the multiple first clamping jaws reciprocate multiple times to enable the labels on all the feeding stations to move towards the feeding station. The labels on the feeding station from right to left are stacked on the feeding station in sequence; a second clamping jaw of the second carrying mechanism is used for carrying the multiple labels stacked on the feeding station to the sewing position. The multiple labels are stacked together and then fed to the sewing position of the clothes, then the multiple labels can be immediately sewn to the clothes at the same time, the label sewing efficiency is improved, and the processing quality and attractiveness of the clothes are improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clothing processing equipment, in particular to a label feeding device and a sewing machine. BACKGROUND

[0002] Labels are used to mark information of clothing. When sewing labels on clothing, the position of the label needs to be accurately positioned. For the case of stacking and sewing multiple labels on clothing, the current label feeding device is provided with multiple feeding boxes, and a carrying mechanism carries the labels on the multiple feeding boxes to the sewing position in sequence. This will make the positions of the multiple labels on the sewing position uneven, and the alignment accuracy of the multiple labels on the clothing is low, resulting in poor processing quality and low aesthetic appearance of the clothing. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a label feeding device which can stack and align multiple labels before feeding them to the sewing position, so as to quickly sew multiple labels on clothing.

[0004] The present application also provides a sewing machine with the above-mentioned label feeding device.

[0005] According to the label feeding device of the first aspect of the present application, the label feeding device comprises a rack, a first carrying mechanism and a second carrying mechanism. The rack is provided with a supporting plate, and the supporting plate is provided with a feeding station and multiple feeding stations. The feeding station and the multiple feeding stations are distributed in sequence from right to left. The multiple feeding stations are respectively used for placing multiple labels. The first carrying mechanism comprises multiple first clamps distributed along the left-right direction. The number of the first clamps is equal to the number of the feeding stations. The multiple first clamps are all arranged in front of the supporting plate. The spacing between the feeding station and the rightmost feeding station, the spacing between any two adjacent feeding stations, and the spacing between any two adjacent first clamps are all equal. The multiple first clamps can move synchronously in the front-back direction and the left-right direction. When the multiple first clamps move back and forth each time, the travel of the labels on all the feeding stations moving to the right is equal to the spacing between any two adjacent feeding stations. The multiple first clamps stack the labels on the feeding stations from right to left on the feeding station by moving back and forth multiple times. The second carrying mechanism comprises a second clamp. The second clamp is used for carrying the multiple labels stacked on the feeding station to a sewing position.

[0006] At least has the following beneficial effects: when multiple labels are placed on multiple feeding stations respectively, multiple first clamps are respectively in front of multiple feeding stations, multiple first clamps are matched with multiple feeding stations one by one, multiple first clamps move backward, so that multiple first clamps clamp multiple labels on multiple feeding stations respectively; then multiple first clamps carry multiple labels to move forward; then multiple first clamps carry multiple labels to move right, when the stroke of the first clamp moving right is equal to the interval between two adjacent feeding stations, the rightmost first clamp is in front of the feeding station, and then multiple first clamps move backward again, so that multiple first clamps can place multiple labels on the supporting plate again, realize that all labels on the feeding station move right, the stroke of all labels on the feeding station moving right is equal to the interval between any two adjacent feeding stations, at this time, the rightmost first clamp places the label on the rightmost feeding station on the feeding station; then multiple first clamps reset, and multiple first clamps complete a label carrying. By analogy, after multiple first clamps complete multiple label carrying, multiple labels on multiple right-to-left feeding stations can be carried and stacked on the feeding station, multiple labels are positioned and aligned on the feeding station, and finally multiple labels stacked on the feeding station are carried to the sewing position by the second clamp at the same time, the stroke of the first clamp and the second clamp is the same each time, so that the positioning accuracy of multiple labels on the garment is high, and multiple labels on the garment can still maintain the aligned state, avoiding that the horizontal positions of multiple labels on the garment are uneven, when multiple labels are carried to the sewing position, because the positioning accuracy of multiple labels on the garment is high, multiple labels can be sewn on the garment at the same time immediately, improving the efficiency of label sewing, improving the processing quality and appearance of the garment.

[0007] According to some embodiments of the application, the front end face of the supporting plate is provided with a first avoiding opening corresponding to the positions of the feeding station and multiple feeding stations, the first avoiding opening penetrates the upper and lower surfaces of the supporting plate, so that the first avoiding opening can be covered by the labels on the feeding station, the first clamp comprises two first clamping arms distributed above and below, both the first clamping arms can extend into the first avoiding opening to clamp the labels on the feeding station or place the labels on the feeding station.

[0008] According to some embodiments of the application, the right end face of the supporting plate is provided with a second avoiding opening corresponding to the position of the feeding station, the second avoiding opening penetrates the upper and lower surfaces of the supporting plate, so that the second avoiding opening can be covered by the labels on the rightmost feeding station, the second clamp comprises two second clamping arms distributed above and below, both the second clamping arms can extend into the second avoiding opening to clamp the labels on the feeding station.

[0009] According to some embodiments of the present invention, a pressing mechanism is further included, the pressing mechanism including a first pressing foot and a plurality of second pressing feet, the first pressing foot and the plurality of second pressing feet being distributed sequentially from right to left, the first pressing foot being used to press the label down on the loading station, and the plurality of second pressing feet being used to press various labels down on the plurality of feeding stations.

[0010] According to some embodiments of the present invention, the first conveying mechanism further includes a first left-right driving mechanism and a first front-back driving mechanism, wherein the first left-right driving mechanism and the first front-back driving mechanism are respectively used to drive the plurality of first grippers to move in the left-right direction and the front-back direction.

[0011] According to some embodiments of the present invention, the second conveying mechanism further includes a rotary drive mechanism, a first lifting drive mechanism, and a second left-right drive mechanism. The rotary drive mechanism is disposed on the frame and located to the right of the pallet. The output end of the rotary drive mechanism extends in the vertical direction and is connected to the first lifting drive mechanism. The output end of the first lifting drive mechanism is connected to the second left-right drive mechanism, and the output end of the second left-right drive mechanism is connected to the second gripper.

[0012] According to some embodiments of the present invention, a positioning device is further included. The positioning device includes a positioning plate, a third conveying mechanism, a vibrator, and a plurality of hoppers distributed in a left-right direction. The plurality of hoppers are all disposed on the frame. The plurality of hoppers are used to hold a variety of labels. The positioning plate is disposed in front of the plurality of hoppers and behind the pallet. The positioning plate is tilted forward. The upper surface of the positioning plate is provided with a plurality of positioning grooves. The plurality of positioning grooves are respectively disposed with respect to the plurality of hoppers and the plurality of feeding stations. The front inner wall of the plurality of positioning grooves is a positioning wall. The third conveying mechanism is disposed on the frame. The third conveying mechanism is used to convey the topmost label on the hopper to the positioning groove. The vibrator is disposed on the positioning plate. The vibrator is used to force the positioning plate to vibrate so that the label in the positioning groove is aligned with the positioning wall.

[0013] According to some embodiments of the present invention, the rear end of the positioning plate is hinged to the frame, and the positioning device further includes a linear drive mechanism hinged to the frame, the output end of the linear drive mechanism being hinged to the front end of the positioning plate to adjust the forward tilt angle of the positioning plate.

[0014] According to some embodiments of the present invention, the third conveying mechanism includes a second front-to-back drive mechanism, a third lifting drive mechanism, and a suction nozzle. The second front-to-back drive mechanism is mounted on the frame, and its output end is connected to the third lifting drive mechanism. The output end of the third lifting drive mechanism is provided with a guide frame, and the guide frame is provided with a guide rod that can slide in the vertical direction. The upper end of the guide rod is provided with a limiting block for abutting against the guide frame. The suction nozzle is located at the lower end of the guide rod, and an elastic element is provided between the guide frame and the suction nozzle, which forces the suction nozzle to move downward.

[0015] According to a second aspect of the present invention, a stitching machine includes a sewing machine and a label feeding device according to the first aspect of the present invention described above. The sewing machine is mounted on the frame, the sewing head of the sewing machine is the stitching position, and the second gripper is used to transport various labels stacked on the feeding station to the sewing head.

[0016] It has at least the following beneficial effects: After multiple labels are positioned and stacked together by the label feeding device, they are transported to the sewing position on the sewing machine head. Then the sewing machine head sews the multiple labels onto the garment, ensuring the neatness of the multiple labels and the accuracy of the sewing position, thereby ensuring the processing quality and aesthetics of the garment.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the positioning plate, hopper, pallet, and first conveying mechanism according to an embodiment of the present invention; Figure 3 for Figure 2 A magnified view of a portion of point A in the middle; Figure 4 This is a schematic diagram of the structure of the second conveying mechanism according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the pallet and pressing mechanism according to an embodiment of the present invention; Figure 6 This is a cross-sectional view of the structure behind the hidden rack in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the present invention after concealing the frame, sewing machine, and second conveying mechanism; Figure 8This is a schematic diagram of the structure of the hopper, positioning plate, vibrator, and linear drive mechanism according to an embodiment of the present invention; Figure 9 This is a partial structural diagram of the hopper, positioning plate, and linear drive mechanism according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the present invention after concealing the frame, sewing machine, first conveying mechanism, pressing mechanism and second conveying mechanism; Icon labels: Frame 1, pallet 11, loading station 111, feeding station 112, first clearance 113, second clearance 114; First conveying mechanism 2, first gripper 21, first clamping arm 211, first left and right drive mechanism 22, left and right sliding plate 221, first front and rear drive mechanism 23, front and rear sliding plate 331; The second conveying mechanism 3, the second gripper 31, the second clamping arm 311, the rotary drive mechanism 32, the first lifting drive mechanism 33, and the second left and right drive mechanism 34; The pressing mechanism 4, the first pressing foot 41, the second pressing foot 42, the second lifting drive mechanism 43, the rotary lifting cylinder 44, and the third pressing foot 45; Positioning device 5, positioning plate 51, positioning groove 511, front positioning block 512, left positioning block 513, right positioning block 514, third conveying mechanism 52, second front and rear drive mechanism 521, third lifting drive mechanism 522, guide frame 5221, suction nozzle 523, vibrator 53, linear drive mechanism 54, hopper 55, front baffle 551, left side plate 552, right side plate 553, rear baffle 554, guide rod 56, limit block 561, elastic element 562, support column 57, sliding frame 58, fourth lifting drive mechanism 59, pressure rod 591; Sewing machine 6. Detailed Implementation

[0019] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0020] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0021] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0022] Reference Figures 1 to 3 This invention discloses a label feeding device, including a frame 1 and a first conveying mechanism 2 and a second conveying mechanism 3, both disposed on the frame 1. The frame 1 is provided with a tray 11, on which a feeding station 111 and multiple feeding stations 112 are provided. The feeding station 111 and the multiple feeding stations 112 are distributed sequentially from right to left, and the multiple feeding stations 112 are respectively used to place various labels; see reference. Figure 2 and Figure 3 The first conveying mechanism 2 includes multiple first grippers 21 evenly distributed in the left-right direction. The number of first grippers 21 is equal to the number of feeding stations 112. All first grippers 21 are located in front of the pallet 11. The distance between the loading station 111 and the rightmost feeding station 112, the distance between two adjacent feeding stations 112, and the distance between two adjacent first grippers 21 are all equal. The multiple first grippers 21 can move synchronously in the front-back and left-right directions. Each time the multiple first grippers 21 reciprocate, the distance to the right of all labels on the feeding stations 112 is equal to the distance between any two adjacent feeding stations 112. Through multiple reciprocating movements, the multiple first grippers 21 stack the labels from the feeding stations 112 from right to left onto the loading station 111. (Refer to...) Figure 4 The second conveying mechanism 3 includes a second gripper 31, which is used to convey multiple labels stacked on the loading station 111 to the sewing position.

[0023] When multiple labels are placed on multiple feeding stations 112, multiple first grippers 21 are positioned in front of each feeding station 112, cooperating with each feeding station 112. The first grippers 21 move backward, gripping the labels on each feeding station 112. Then, the first grippers 21 move forward carrying the labels. Next, the first grippers 21 move to the right carrying the labels. When the rightward movement of the first grippers 21 equals the distance between two adjacent feeding stations 112, the rightmost first gripper 21... 1 is positioned directly in front of the loading station 111. Then, multiple first grippers 21 move backward again, allowing them to place various labels back onto the pallet 11. This achieves the goal of moving all labels on the feeding stations 112 to the right. The rightward movement of the labels on all feeding stations 112 is equal to the distance between any two adjacent feeding stations 112. At this point, the rightmost first gripper 21 places the label from the rightmost feeding station 112 onto the loading station 111. Then, the multiple first grippers 21 reset, completing one label handling operation. Similarly, after multiple first grippers 21 complete multiple label handling operations, they can transport and stack multiple labels from the right-to-left feeding stations 112 onto the loading station 111, thus positioning and aligning various labels on the loading station 111. Finally, the second gripper 31 simultaneously transports the stacked labels on the loading station 111 to the sewing position. The stroke of the first gripper 21 and the second gripper 31 is the same each time, resulting in high positioning accuracy of the various labels on the garment and maintaining alignment while the labels are on the garment, avoiding uneven horizontal positions of the various labels on the garment. When the various labels are transported to the sewing position, due to the high positioning accuracy of the various labels on the garment, they can be immediately sewn onto the garment simultaneously, improving the efficiency of label sewing and enhancing the processing quality and aesthetics of the garment.

[0024] It should be noted that when multiple labels are placed on multiple material feeding stations 112, it means that each material feeding station 112 has one label of each type, so that each type of label has one label among the multiple labels sewn on the garment.

[0025] Reference Figure 2In this embodiment, there are five feeding stations 112, which are numbered from right to left as the first feeding station to the fifth feeding station. There are also five first grippers 21, which are numbered from right to left as the first first gripper to the fifth first gripper. When the five types of labels are placed on the first feeding station to the fifth feeding station respectively, the first feeding station has one first type of label, the second feeding station has one second type of label, the third feeding station has one third type of label, the fourth feeding station has one fourth type of label, and the fifth feeding station has one fifth type of label.

[0026] Initially, the first gripper is positioned in front of the first feeding station, the second gripper in front of the second feeding station, the third gripper in front of the third feeding station, the fourth gripper in front of the fourth feeding station, and the fifth gripper in front of the fifth feeding station. The first, second, third, fourth, and fifth grippers move backward synchronously. The first gripper holds the first type of label at the first feeding station, and the second gripper... The first jaw grips the second type of label at the second feeding station, the third jaw grips the third type of label at the third feeding station, the fourth jaw grips the fourth type of label at the fourth feeding station, and the fifth jaw grips the fifth type of label at the fifth feeding station; then the first, second, third, fourth, and fifth jaws move forward synchronously; then the first, second, third, fourth, and fifth jaws move forward synchronously. Moving to the right, when the rightward travel of the first gripper is equal to the distance between any two adjacent feeding stations 112, the first gripper is in front of the loading station, the second gripper is in front of the first feeding station, the third gripper is in front of the second feeding station, the fourth gripper is in front of the third feeding station, and the fifth gripper is in front of the fourth feeding station; then, the first gripper, the second gripper, the third gripper, the fourth gripper, and the fifth gripper move forward in sequence. The grippers move backward in sync. The first gripper places the first type of label from the first feeding station onto the feeding station. The second gripper places the second type of label from the second feeding station onto the first feeding station. The third gripper places the third type of label from the third feeding station onto the second feeding station. The fourth gripper places the fourth type of label from the fourth feeding station onto the third feeding station. The fifth gripper places the fifth type of label from the fifth feeding station onto the fourth feeding station.

[0027] Immediately afterwards, the first gripper returns to its original position and moves to the front of the first feeding station; the second gripper moves to the front of the second feeding station; the third gripper moves to the front of the third feeding station; the fourth gripper moves to the front of the fourth feeding station; and the fifth gripper moves to the front of the fifth feeding station. Simultaneously, the first, second, third, fourth, and fifth grippers move backward, so that the first gripper holds the second type of label at the first feeding station, the second gripper holds the third type of label at the second feeding station, the third gripper holds the fourth type of label at the third feeding station, and the fourth gripper holds the fifth type of label at the fourth feeding station. Then, the first, second, third, fourth, and fifth grippers move forward simultaneously. Next, the first, second, third, fourth, and fifth grippers move backward... The first and fifth grippers move to the right synchronously. When the rightward movement of the first gripper is equal to the distance between any two adjacent feeding stations 112, the first gripper is in front of the loading station, the second gripper is in front of the first feeding station, the third gripper is in front of the second feeding station, the fourth gripper is in front of the third feeding station, and the fifth gripper is in front of the fourth feeding station. Then, the first, second, third, fourth, and fifth grippers move backward synchronously. The first gripper places the second type of label from the first feeding station onto the loading station, the second gripper places the third type of label from the second feeding station onto the first feeding station, the third gripper places the fourth type of label from the third feeding station onto the second feeding station, and the fourth gripper places the fifth type of label from the fourth feeding station onto the third feeding station. Similarly, the first conveying mechanism 2 can stack the first, second, third, fourth and fifth labels sequentially on the loading station by working five times, that is, stack the labels on the feeding station 112 from right to left onto the loading station 111.

[0028] Understandably, with m feeding stations 112, the first conveying mechanism 2 can place m types of labels on the loading station 111 by working m times. Of course, only n feeding stations 112, counted from right to left, can be used, where n is less than m, and the first conveying mechanism 2 can place n types of labels on the loading station 111 by working n times.

[0029] It is conceivable that the loading station 111 and multiple feeding stations 112 can also be arranged in a manner distributed from left to right. Each time the multiple first grippers 21 reciprocate, the travel distance of all the labels on the feeding stations 112 to the left is equal to the distance between any two adjacent feeding stations 112. The multiple first grippers 21 reciprocate multiple times, stacking the labels on the feeding stations 112 from left to right onto the loading station 111. Finally, the second gripper 31 of the second conveying mechanism 3 transports the various labels stacked on the loading station 111 to the sewing position.

[0030] Reference Figure 3 In some embodiments, the front end face of the pallet 11 is provided with a first clearance opening 113 at the position corresponding to the loading station 111 and the multiple feeding stations 112. The first clearance opening 113 penetrates the upper and lower surfaces of the pallet 11 so that the first clearance opening 113 can be covered by the label on the feeding station 112. The first gripper 21 includes two first gripping arms 211 distributed vertically. Both first gripping arms 211 can extend into the first clearance opening 113 to grip the label on the feeding station 112 or place the label on the feeding station 112.

[0031] Before the first gripper 21 grips the label on the feeding station 112, the two first gripping arms 211 are in a separated state. Then, the two first gripping arms 211 of the first gripper 21 move backward, and the rear ends of the two first gripping arms 211 move to the top and bottom of the first clearance opening 113, respectively. Then, the two first gripping arms 211 close together (approach each other), the lower first gripping arm 211 passes through the first clearance opening 113 from bottom to top, and the upper first gripping arm 211 moves from top to bottom, so that the two first gripping arms 211 can grip the label on the feeding station 112.

[0032] When the first gripper 21 places the label on the feeding station 111, the two first gripping arms 211 move backward while holding the label. The two first gripping arms 211 carry the label to the top of the first clearance opening 113. Then the upper first gripping arm 211 rises, and the lower first gripping arm 211 passes through the first clearance opening 113 from top to bottom, so that the label on the two first gripping arms 211 falls on the feeding station 112.

[0033] It should be noted that when the two first clamping arms 211 are closed, the lower first clamping arm 211 is higher than or flush with the upper surface of the tray 11, and the upper first clamping arm 211 is not lower than the upper surface of the tray 11. This ensures that when the two first clamping arms 211 are closed and holding the label, the label will not be lower than the upper surface of the tray 11. When the two first clamping arms 211 hold the label on the tray 11, the label will not be pressed into the first clearance opening 113. When the two first clamping arms 211 place the label on the tray 11, the label will not be deformed or unable to be laid flat on the tray 11 due to the label being lower than the upper surface of the tray 11.

[0034] Reference Figure 3 In some embodiments, a second clearance opening 114 is provided on the right end face of the pallet 11 at the position corresponding to the loading station 111. The second clearance opening 114 penetrates the upper and lower surfaces of the pallet 11, so that the second clearance opening 114 can be covered by the label on the rightmost feeding station 112, as shown in the figure. Figure 4 The second gripper 31 includes two second gripping arms 311 distributed vertically. Both second gripping arms 311 can extend into the second clearance opening 114 to grip the label on the loading station 111.

[0035] Initially, the two second clamping arms 311 are in a separated state. The two second clamping arms 311 move to the left, and the left ends of the two second clamping arms 311 move to the top and bottom of the second clearance opening 114, respectively. Then the two second clamping arms 311 come together (close to each other). The lower second clamping arm 311 passes through the second clearance opening 114 from bottom to top, and the upper second clamping arm 311 moves from top to bottom, so that the two second clamping arms 311 can just clamp the label on the loading station 111.

[0036] Reference Figure 1 and Figure 5 In some embodiments, the label feeding device further includes a pressing mechanism 4, which includes a first pressing foot 41 and a plurality of second pressing feet 42, which are distributed from right to left. The first pressing foot 41 is used to press the label down onto the feeding station 111. Before the second gripper 31 clamps the label on the feeding station 111 and in the initial stage of the second gripper 31 clamping the label on the feeding station 111, the first pressing foot 41 presses the label down onto the feeding station 111 to position the label on the feeding station 111, ensuring that the second gripper 31 can clamp the label on the feeding station 111 and avoid label displacement when the second gripper 31 clamps the label on the feeding station 111, ensuring that the second gripper 31 can accurately clamp the label at a specific position, thereby ensuring the accuracy of the label feeding to the sewing position.

[0037] Multiple second presser feet 42 are used to press various labels onto multiple feeding stations 112. Before the first gripper 21 clamps the label on the feeding station 112 and in the initial stage of the first gripper 21 clamping the label on the feeding station 112, the second presser feet 42 press the label onto the feeding station 112 to position the label on the feeding station 112, ensuring that the first gripper 21 can clamp the label on the feeding station 112 and avoid label offset when the first gripper 21 clamps the label on the feeding station 112, ensuring that the first gripper 21 can accurately clamp the label at a specific position, thereby ensuring the positional accuracy of transferring the label from one feeding station 112 to another feeding station 112, and ensuring the positional accuracy of transferring the label from the rightmost feeding station 112 to the loading station 111.

[0038] Reference Figure 5 The pressing mechanism 4 also includes a second lifting drive mechanism 43 mounted on the frame 1. The output end of the second lifting drive mechanism 43 is connected to a lifting plate. The length of the lifting plate extends in the left and right direction. The lifting plate is above the support plate 11 and parallel to the support plate 11. The first pressing foot 41 and multiple second pressing feet 42 are mounted on the lifting plate. The second lifting drive mechanism 43 drives the first pressing foot 41 and multiple second pressing feet 42 to lift and lower synchronously through the lifting plate. When the second lifting drive mechanism 43 drives the first pressing foot 41 and multiple second pressing feet 42 to descend synchronously through the lifting plate, the first pressing foot 41 can press the label down on the feeding station 111, and the multiple second pressing feet 42 can press multiple labels down on multiple feeding stations 112.

[0039] Reference Figure 2 or Figure 5 The pressing mechanism 4 also includes a rotary lifting cylinder 44 and a third pressing foot 45. The rotary lifting cylinder 44 is mounted on the frame 1, and its output end is connected to the third pressing foot 45. The rotary lifting cylinder 44 is used to drive the third pressing foot 45 to lift and rotate with the vertical direction as its rotation axis. Initially, the third pressing foot 45 is higher than the pallet 11, and its downward projection is not on the loading station 111. When it is necessary to press down the label on the loading station 111, the rotary lifting cylinder 44 drives the third pressing foot 45 to rotate with the vertical direction as its rotation axis, so that the third pressing foot 45 is above the loading station 111, that is, the downward projection of the third pressing foot 45 is on the loading station 111. The rotary lifting cylinder 44 also drives the third pressing foot 45 to move downward, so that the third pressing foot 45 can press multiple labels onto the loading station 111.

[0040] Reference Figure 2In some embodiments, the first conveying mechanism 2 further includes a first left-right driving mechanism 22 and a first front-back driving mechanism 23. The first left-right driving mechanism 22 and the first front-back driving mechanism 23 are respectively used to drive the multiple first grippers 21 to move in the left-right direction and the front-back direction, so that the multiple first grippers 21 can move synchronously in the front-back direction and the left-right direction.

[0041] The first left-right drive mechanism 22 is mounted on the frame 1. The frame 1 is provided with a left-right sliding plate 221 that can slide in the left-right direction. The output end of the first left-right drive mechanism 22 is connected to the left-right sliding plate 221. The left-right sliding plate 221 is provided with a front-back sliding plate 331 that can slide in the front-back direction. The first front-back drive mechanism 23 is mounted on the left-right sliding plate 221. The output end of the first front-back drive mechanism 23 is connected to the front-back sliding plate 331. Multiple first grippers 21 are mounted on the front-back sliding plate 331. The first left-right drive mechanism 22 is used to drive the left-right sliding plate 221, the front-back sliding plate 331, the first front-back drive mechanism 23, and the multiple first grippers 21 to move in the left-right direction. The first front-back drive mechanism 23 is used to drive the front-back sliding plate 331 and the multiple first grippers 21 to move in the front-back direction.

[0042] Reference Figure 4 In some embodiments, the second conveying mechanism 3 further includes a rotary drive mechanism 32, a first lifting drive mechanism 33, and a second left-right drive mechanism 34. The rotary drive mechanism 32 is mounted on the frame 1 and located to the right of the pallet 11. The output end of the rotary drive mechanism 32 extends vertically and is connected to the first lifting drive mechanism 33. The output end of the first lifting drive mechanism 33 is connected to the second left-right drive mechanism 34. The output end of the second left-right drive mechanism 34 is connected to the second gripper 31. The rotary drive mechanism 32 is used to drive the first lifting drive mechanism. 33. The second left and right drive mechanism 34 and the second gripper 31 rotate with the up and down direction as the rotation axis to adjust the orientation of the second gripper 31. The first lifting drive mechanism 33 is used to drive the second gripper 31 to lift and lower to adjust the height of the second left and right drive mechanism 34 and the second gripper 31. The second left and right drive mechanism 34 is used to drive the second gripper 31 to move in the horizontal direction to adjust the horizontal position of the second gripper 31, so that the second gripper 31 can approach and move away from the loading station 111, thereby enabling the second gripper 31 to transport the various labels stacked on the loading station 111 to the sewing position.

[0043] Reference Figure 1 The label feeding device includes a positioning device 5, as shown in the reference. Figures 6 to 8The positioning device 5 includes a positioning plate 51, a third conveying mechanism 52, a vibrator 53, and multiple hoppers 55 distributed in the left-right direction. The multiple hoppers 55 are all located on the frame 1 and are located behind the pallet 11. Each hopper 55 is used to hold one type of label, and each hopper 55 is used to hold multiple labels of the same type. The positioning plate 51 is located in front of the multiple hoppers 55 and behind the pallet 11. The positioning plate 51 is tilted forward. The upper surface of the positioning plate 51 is provided with multiple positioning grooves 511. The multiple positioning grooves 511 are arranged one-to-one with the multiple hoppers 55 and the multiple feeding stations 112. The front inner wall of the multiple positioning grooves 511 is the positioning wall. The third conveying mechanism 52 is located on the frame 1 and is used to convey the topmost label on the hopper 55 into the positioning groove 511. The vibrator 53 is located on the positioning plate 51 and is used to force the positioning plate 51 to vibrate so that the label in the positioning groove 511 is aligned with the positioning wall.

[0044] Initially, various labels are placed in multiple hoppers 55. Then, a third conveying mechanism 52 transports the top layer of labels from the hoppers 55 to the positioning slots 511. Next, a vibrator 53 is activated, forcing the positioning plate 51 to vibrate. Since the positioning plate 51 is tilted forward, the labels in the positioning slots 511 align with the positioning wall, achieving precise label positioning. When placing multiple stacked labels on the hoppers 55, there is no need to manually align them, increasing the label feeding speed and reducing the workload of workers.

[0045] Reference Figure 7 or Figure 8 The length of the positioning plate 51 is parallel to the left-right direction, as shown in the reference. Figure 6 The positioning plate 51 is located between the hopper 55 and the pallet 11. Multiple positioning slots 511 are respectively located in front of multiple hoppers 55. The multiple positioning slots 511 and multiple hoppers 55 correspond one to one. The third conveying mechanism 52 drives the label to rise first, then the label moves forward to the top of the positioning slot 511, and then the label moves down into the positioning slot 511.

[0046] Reference Figure 8 In some embodiments, the positioning device 5 further includes a linear drive mechanism 54 hinged to the frame 1. The output end of the linear drive mechanism 54 is hinged to the front end of the positioning plate 51. The output end of the linear drive mechanism 54 can drive the positioning plate 51 to swing about the left and right directions as the rotation center, that is, adjust the tilt angle of the positioning plate 51. The positioning plate 51 is kept in a forward tilted state, that is, the front end of the positioning plate 51 is lower than the rear end of the positioning plate 51, the front end of the positioning groove 511 is lower than the rear end of the positioning groove 511, and the front inner wall of the positioning groove 511 is also in a forward tilted state. When the side walls of the positioning plate 51 and the positioning groove 511 vibrate, the front end of the label can be aligned with the front inner wall of the positioning groove 511.

[0047] When the label is placed in the positioning groove 511, the vibrator 53 is started. At this time, the front end of the positioning plate 51 can be swung downward by the linear drive mechanism 54, which is more conducive to quickly pressing the front end of the label against the front inner wall of the positioning groove 511, improving the positioning efficiency of the label in the positioning groove 511, and further ensuring the positioning accuracy of the label in the positioning groove 511. After a certain time interval, the front end of the positioning plate 51 can be swung upward by the linear drive mechanism 54, so that the positioning plate 51 and the positioning groove 511 are reset, so that the label in the positioning groove 511 can be removed or another label can be put into the positioning groove 511.

[0048] Rotating shafts are connected to the rear sides of the left and right ends of the lower surface of the positioning plate 51. The length direction of the two rotating shafts is parallel to the left and right direction, and the two rotating shafts are coaxially arranged. Each rotating shaft is equipped with a bearing, and the two bearings are connected to the frame 1 through two bearing seats. Two linear drive mechanisms 54 are hinged on the frame 1. The output ends of the two linear drive mechanisms 54 are respectively hinged to the front sides of the left and right ends of the positioning plate 51. The two linear drive mechanisms 54 can make the left and right ends of the positioning plate 51 balanced by forces.

[0049] Reference Figure 7 In some embodiments, the positioning device 5 further includes a support column 57 disposed on the frame 1. A limit column is threadedly connected to the support column 57. The height of the limit column can be adjusted by rotating the limit column. The lower end of the limit column is used to abut against the upper surface of the positioning plate 51. The limit column limits the tilt angle of the positioning plate 51, preventing the positioning plate 51 from tilting backward and ensuring that the label is aligned with the front inner wall of the positioning groove 511.

[0050] It should be noted that the position of the limiting post is in front of the rotating shaft, so that when the front end of the positioning plate 51 swings, the limiting post can abut against the front end of the positioning plate 51, that is, the limiting post can abut against the free end of the positioning plate 51.

[0051] Reference Figure 9 In some embodiments, the positioning plate 51 is provided with a front positioning block 512, a left positioning block 513 and a right positioning block 514. The front positioning block 512, the left positioning block 513 and the right positioning block 514 form a positioning groove 511. The front positioning block 512, the left positioning block 513 and the right positioning block 514 respectively limit the left position, the right position and the front position of the label on the positioning plate 51, so as to realize the left and right position of the label and make the label aligned with the front positioning block 512.

[0052] The rear ends of the left positioning block 513 and the right positioning block 514 are each provided with a first chamfer on their opposite sides, forming a first V-shaped opening. The first V-shaped opening gradually narrows from back to front. When the positioning plate 51 tilts forward, it can guide the label to move from back to front into the positioning groove 511 and abut against the front inner wall of the positioning groove 511. The rear ends of the left positioning block 513 and the right positioning block 514 are each provided with a second chamfer on their opposite sides, forming a second V-shaped opening. The second V-shaped opening gradually narrows from top to bottom. When the label moves down, the second V-shaped opening can guide the label to move from top to bottom into the positioning groove 511 and abut against the bottom wall of the positioning groove 511.

[0053] Reference Figure 9 The multiple positioning slots 511 include a front positioning block 512, multiple left positioning blocks 513 and multiple right positioning blocks 514, and a region of a left positioning block 513, a right positioning block 514 and a front positioning block 512 forms a positioning slot 511.

[0054] The positions of the left positioning block 513 and the right positioning block 514 on the positioning plate 51 are adjustable, thereby adjusting the position of the positioning groove 511 in the left-right direction and also adjusting the width of the positioning groove 511 in the left-right direction, so that the positioning groove 511 can be used for labels of different widths. It should be noted that both the left positioning block 513 and the right positioning block 514 are provided with a third elongated hole, the length direction of which is parallel to the left-right direction. A third fastener is threaded onto the positioning plate 51, and the third fastener passes through the third elongated hole. Tightening the third fastener can fix the left positioning block 513 / right positioning block 514 on the positioning plate 51, while loosening the third fastener can adjust the left-right position of the left positioning block 513 / right positioning block 514 on the positioning plate 51.

[0055] Reference Figure 6 or Figure 7 or Figure 10 In some embodiments, the third conveying mechanism 52 includes a second front-to-back drive mechanism 521, a third lifting drive mechanism 522, and a suction nozzle 523. The second front-to-back drive mechanism 521 and the third lifting drive mechanism 522 are respectively used to drive the suction nozzle 523 to move in the front-to-back direction and the up-to-down direction, so that the suction nozzle 523 can transport the topmost label on the hopper 55 into the positioning slot 511.

[0056] Reference Figure 6In some embodiments, the output end of the third lifting drive mechanism 522 is provided with a guide frame 5221. The third lifting drive mechanism 522 is used to drive the guide frame 5221 to rise and fall. The guide frame 5221 is provided with a guide rod 56. The guide frame 5221 is used to guide the guide rod 56 to rise and fall. The upper end of the guide rod 56 is provided with a limiting block 561 for abutting against the guide frame 5221. The limiting block 561 limits the maximum stroke of the guide rod 56 relative to the guide frame 5221. The suction nozzle 523 is provided at the lower end of the guide rod 56. An elastic element 562 is provided between the guide frame 5221 and the suction nozzle 523. The elastic element 562 forces the suction nozzle 523 to move downward, so that in the natural state, the guide rod 56 and the suction nozzle 523 are in a suspended state, the suction nozzle 523 is in a position away from the guide frame 5221, and the limiting block 561 abuts against the guide frame 5221.

[0057] Initially, the third lifting drive mechanism 522 drives the guide frame 5221 to rise to a high position, placing the guide rod 56 and the suction nozzle 523 at a higher position, with the suction nozzle 523 above the hopper 55. When the third conveying mechanism 52 operates, the third lifting drive mechanism 522 drives the guide frame 5221 to descend. The guide frame 5221 carries the guide rod 56 and the suction nozzle 523 down. When the suction nozzle 523 touches the label on the hopper 55, the guide rod 56 and the suction nozzle 523 stop descending, and the elastic element 562 is compressed until the guide frame 5221 moves down to a low position, and the suction nozzle 523 picks up the label on the hopper 55. Then, the third lifting drive mechanism 522 drives the guide frame 5221 to rise to a high position again, and the elastic element... 562 is reset to the extended state, with guide rod 56 and suction nozzle 523 in a higher position, and suction nozzle 523 and the label adsorbed on suction nozzle 523 above the hopper 55; then the second front and rear drive mechanism 521 drives suction nozzle 523 to move above positioning groove 511, so that the label adsorbed on suction nozzle 523 is facing positioning groove 511; then the third lifting drive mechanism 522 drives guide frame 5221 to descend again, and guide frame 5221 carries guide rod 56 and suction nozzle 523 down. When the label on suction nozzle 523 touches the bottom of positioning groove 511, elastic element 562 is compressed again until guide frame 5221 moves down to a lower position again, suction nozzle 523 releases the label, thus placing the label in positioning groove 511.

[0058] Since both the guide rod 56 and the suction nozzle 523 can be raised or lowered relative to the output end of the third lifting drive mechanism 522 or the guide frame 5221, and the elastic element 562 can force the suction nozzle 523 to move downward relative to the guide frame 5221, the stroke of the third lifting drive mechanism 522 driving the guide frame 5221 to rise or fall remains unchanged each time, and the suction nozzle 523 can transport labels of all heights in the hopper 55 to the positioning slot 511.

[0059] Reference Figure 6In some embodiments, the suction nozzle 523 is connected to the guide rod 56, and an air passage is provided at the central axis of the guide rod 56. The suction nozzle 523 is connected to the air passage, and the air passage is connected to an external negative pressure device, so that negative pressure can be generated at the suction nozzle 523, thereby enabling the suction nozzle 523 to adsorb the label.

[0060] The elastic element 562 is a spring, which is sleeved on the lower end of the guide rod 56, and the two ends of the spring abut against the guide frame 5221 and the suction nozzle 523 respectively.

[0061] It should be noted that the frame 1 is equipped with a support plate, and the support plate is equipped with a sliding frame 58 that moves in the front-to-back direction. The third lifting drive mechanism 522 is mounted on the sliding frame 58, and the output end of the second front-to-back drive mechanism 521 is connected to the sliding frame 58 or the third lifting drive mechanism 522. For details, refer to... Figure 7 or Figure 10 The third transport mechanism 52 includes a second front and rear drive mechanism 521, multiple third lifting drive mechanisms 522 and multiple suction nozzles 523. The multiple third lifting drive mechanisms 522 and multiple suction nozzles 523 cooperate with each other. The multiple third lifting drive mechanisms 522 are arranged sequentially on the sliding frame 58 in the left and right direction. The third transport mechanism 52 can transport multiple labels at the same time.

[0062] Reference Figure 6 or Figure 10 In some embodiments, the positioning device 5 further includes a fourth lifting drive mechanism 59 and multiple pressure rods 591 disposed on the fourth lifting drive mechanism 59. The fourth lifting drive mechanism 59 is used to drive the multiple pressure rods 591 to rise and fall, so that the multiple pressure rods 591 press various labels from the opening of the positioning groove 511 into the positioning groove 511, ensuring that the labels can abut against the bottom of the positioning groove 511, thus completing the positioning of the labels.

[0063] Reference Figure 10 There are two fourth lifting drive mechanisms 59, which are distributed on the left and right sides. The output ends of the two fourth lifting drive mechanisms 59 are connected to the same first horizontal plate. The first horizontal plate and the positioning plate 51 are parallel to each other. The first horizontal plate is parallel to the left and right direction. The two fourth lifting drive mechanisms 59 are connected to multiple pressure rods 591 through the first horizontal plate. The multiple pressure rods 591 move in the left and right direction.

[0064] Reference Figure 10 The sliding frame 58 has longitudinal plates connected to both its left and right ends. These two longitudinal plates are connected to the same second horizontal plate, which is parallel to the frame 1 and runs parallel to the left-right direction. Two fourth lifting drive mechanisms 59 are located at opposite ends of the second horizontal plate. The distance between the suction nozzle 523 and the pressure rod 591 is equal to the distance between the hopper 55 and the positioning groove 511. The suction nozzle 523 and the pressure rod 591 move synchronously in the front-back direction without interfering with each other.

[0065] It is understandable that the second lifting drive mechanism 43 is connected to the frame 1 through the support plate, so that the second lifting drive mechanism 43 is in a higher position, and the output end of the second lifting drive mechanism 43 faces downward and is connected to the lifting plate.

[0066] Reference Figure 9 In some embodiments, the hopper 55 includes a front baffle 551, a left side plate 552, a right side plate 553 and a rear baffle 554, all mounted on the frame 1. The front baffle 551, the left side plate 552, the right side plate 553 and the rear baffle 554 form a limiting cavity for accommodating labels, thereby limiting the placement of multiple stacked labels so that the third conveying mechanism 52 can sequentially convey multiple labels from the limiting cavity to the positioning slot 511 from top to bottom.

[0067] In some embodiments, the bottom of the left side plate 552 and the right side plate 553 are provided with a first elongated hole, the length direction of the first elongated hole is parallel to the left and right direction, and two first fasteners are threaded on the frame 1, the two first fasteners are respectively inserted through the two first elongated holes, and the bottom of the rear baffle 554 is provided with a second elongated hole, the length direction of the second elongated hole is parallel to the left and right direction, and a second fastener is threaded on the frame 1, the second fastener is inserted through the second elongated hole.

[0068] Loosening the two first fasteners allows adjustment of the left side plate 552 and right side plate 553 in the left-right direction, while loosening the second fastener allows adjustment of the rear baffle 554 in the front-back direction, thereby adjusting the position of the hopper 55 and making the hopper 55 suitable for limiting labels of different lengths and widths.

[0069] The linear drive mechanism 54, the first front-to-back drive mechanism 23, the second front-to-back drive mechanism 521, the first lifting drive mechanism 33, the third lifting drive mechanism 522, the second lifting drive mechanism 43, the fourth lifting drive mechanism 59, the first left-to-right drive mechanism 22, and the second left-to-right drive mechanism 34 can all be cylinders or lead screw pairs. The rotary drive mechanism 32 can be a motor. The first fastener, the second fastener, and the third fastener can be the first bolt, the second bolt, and the third bolt, respectively. The limiting post can be the fourth bolt.

[0070] Reference Figure 1 The present invention also discloses a stitching machine, including a sewing machine 6 and the above-mentioned label feeding device. The sewing machine 6 is mounted on the frame 1, the head of the sewing machine 6 is the sewing position, and the second gripper 31 is used to transport the various labels stacked on the feeding station 111 to the head of the sewing machine.

[0071] Multiple labels are positioned and stacked together by the label feeding device and then transported to the sewing position on the sewing head of sewing machine 6. The sewing head then sews the multiple labels onto the garment, ensuring the neatness of the labels and the accuracy of the sewing position, thereby ensuring the processing quality and aesthetics of the garment.

[0072] 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.

[0073] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A label feeding device, characterized by The utility model relates to a label stacking machine, including: A rack is equipped with a supporting plate, and the supporting plate is equipped with a feeding station and a plurality of feeding stations, the feeding station and a plurality of the feeding station are sequentially distributed from right to left, and a plurality of the feeding station is used for placing a plurality of labels respectively; A first carrying mechanism includes a plurality of first clamps distributed along the left and right directions, the number of the first clamps is equal to the number of the feeding stations, a plurality of the first clamps are arranged in front of the supporting plate, the spacing between the feeding station farthest to the right and the feeding station, the spacing between any two adjacent feeding stations and the spacing between any two adjacent first clamps are equal, a plurality of the first clamps can move synchronously along the front and back directions and the left and right directions, and the travel of the labels on all the feeding stations moved to the right by a plurality of the first clamps each time reciprocating motion is equal to the spacing between any two adjacent feeding stations, and a plurality of the first clamps reciprocate multiple times to stack the labels on the feeding stations from right to left on the feeding station in turn; A second carrying mechanism includes a second clamp, and the second clamp is used for carrying a plurality of the labels stacked on the feeding station to a sewing position.

2. The label feeding apparatus according to claim 1, wherein The front end surface of the supporting plate is provided with a first avoiding opening at the positions corresponding to the feeding station and a plurality of the feeding stations, the first avoiding opening penetrates the upper and lower surfaces of the supporting plate, so that the first avoiding opening can be covered by the labels on the feeding station, the first clamp includes two first clamping arms distributed upward and downward, and the two first clamping arms can extend into the first avoiding opening to clamp the labels on the feeding station or place the labels on the feeding station.

3. The label feeding device according to claim 1 or 2, characterized in that The right end surface of the supporting plate is provided with a second avoiding opening at the position corresponding to the feeding station, the second avoiding opening penetrates the upper and lower surfaces of the supporting plate, so that the second avoiding opening can be covered by the labels on the feeding station farthest to the right, the second clamp includes two second clamping arms distributed upward and downward, and the two second clamping arms can extend into the second avoiding opening to clamp the labels on the feeding station.

4. The label feeding apparatus according to claim 1, wherein Further including a pressing mechanism, the pressing mechanism includes a first presser foot and a plurality of second presser feet, the first presser foot and a plurality of the second presser feet are sequentially distributed from right to left, the first presser foot is used for pressing the labels on the feeding station, and a plurality of the second presser feet are used for pressing a plurality of the labels on a plurality of the feeding stations.

5. The label feeding apparatus according to claim 1, wherein The first carrying mechanism further includes a first left and right driving mechanism and a first front and back driving mechanism, and the first left and right driving mechanism and the first front and back driving mechanism are used for driving a plurality of the first clamps to move along the left and right directions and the front and back directions respectively.

6. The label feeding apparatus according to claim 1, wherein The second conveying mechanism further comprises a rotating driving mechanism, a first lifting driving mechanism and a second left-right driving mechanism, the rotating driving mechanism is arranged on the frame and located at the right side of the supporting plate, the output end of the rotating driving mechanism extends in the up-down direction, the output end of the rotating driving mechanism is connected with the first lifting driving mechanism, the output end of the first lifting driving mechanism is connected with the second left-right driving mechanism, and the output end of the second left-right driving mechanism is connected with the second clamping jaw.

7. The label feeding apparatus according to claim 1, wherein The positioning device further comprises a positioning plate, a third conveying mechanism, a vibrator and a plurality of material bins distributed in the left-right direction, the plurality of material bins are arranged on the frame, and the plurality of material bins are respectively used for placing a plurality of labels; the positioning plate is arranged in front of the plurality of material bins and at the rear of the supporting plate, the positioning plate is in a forward-inclined state, the upper surface of the positioning plate is provided with a plurality of positioning grooves, the plurality of positioning grooves are arranged one-to-one with the plurality of material bins and the plurality of feeding stations, the front inner wall of the plurality of positioning grooves is a positioning wall, the third conveying mechanism is arranged on the frame, and the third conveying mechanism is used for conveying the labels on the uppermost layer of the material bins into the positioning grooves, and the vibrator is arranged on the positioning plate and used for forcing the positioning plate to vibrate so that the labels in the positioning grooves are aligned on the positioning wall.

8. The label feeding apparatus according to claim 7, wherein The rear end of the positioning plate is hinged to the frame, and the positioning device further comprises a linear driving mechanism hinged to the frame, the output end of the linear driving mechanism is hinged to the front end of the positioning plate, so as to adjust the forward-inclined angle of the positioning plate.

9. The label feeding device according to claim 7 or 8, characterized in that The third conveying mechanism comprises a second front-back driving mechanism, a third lifting driving mechanism and a suction nozzle, the second front-back driving mechanism is arranged on the frame, the output end of the second front-back driving mechanism is connected with the third lifting driving mechanism, the output end of the third lifting driving mechanism is provided with a guide frame, the guide frame is provided with a guide rod capable of sliding in the up-down direction, the upper end of the guide rod is provided with a limiting block used for abutting against the guide frame, the suction nozzle is arranged at the lower end of the guide rod, and an elastic member is arranged between the guide frame and the suction nozzle, the elastic member forces the suction nozzle to move downward.

10. Stapling machine, characterized in that, The label feeding device according to any one of claims 1 to 9 is applied to a sewing machine, the sewing machine is arranged on the frame, the head of the sewing machine is the sewing position, and the second clamping jaw is used for conveying a plurality of labels stacked on the feeding station to the head.