Flexible label front and back side sorting mechanism, label pressing equipment and label pressing method of flexible label front and back side sorting mechanism

Abstract

The invention relates to the technical field of label processing equipment, and discloses a flexible label front and back side sorting mechanism, label pressing equipment and a label pressing method.The flexible label front and back side sorting mechanism comprises a material arranging rotary disc capable of winding the flexible label front and back side sorting mechanism, and a vibration feeding disc, a material arranging device and a conveying device are arranged on the outer side of the material arranging rotary disc; a visual identification module used for detecting the front face and the back face of a label is arranged above the material arranging station, and a visual positioning module used for detecting the position of the label is arranged above the discharging station. The material arranging device comprises a material box capable of longitudinally ascending and descending, a material ramming driving structure is arranged on the material box, and the material ramming driving structure can control the labels in a material ramming inner cavity to turn over and / or move. The invention provides a flexible label front and back side sorting mechanism, label pressing equipment and a label pressing method thereof, and is beneficial to solving the problems that the front and back sides of existing labels of sheet structures need to be manually arranged and sorted, time and labor are wasted, and label structure defects are easily caused.

Description

Technical Field

[0001] The present invention relates to the technical field of label processing equipment, and in particular to a flexible label front and back side sorting mechanism, a label pressing device and a label pressing method thereof. Background Art

[0002] Manufacturers of shoes, clothing and other finished fabrics are accustomed to attaching one or more labels to their products to display multiple information items, such as item size, fiber composition, maintenance instructions, and the manufacturer's name and trademark. Among them, thermal transfer labels are widely used. During production and processing, these labels are cut into thin sheets by a cutting machine, that is, flexible labels, with front and back sides, and patterns printed on the front. Since the materials are often collected in boxes and bags after processing by the cutting machine, the labels are in a messy state. At present, they are mainly sorted by manual sorting, straightening the front and back of the labels and then wrapping them in bundles according to a specific number. First, wrapping is often achieved by using rubber bands. This elastic bundling will cause the label to deform after a period of time, affecting the quality of subsequent thermal transfer; secondly, manual sorting is a relatively basic repetitive labor. Although the technical requirements are not high, it is time-consuming and labor-intensive. After long-term labor, it is easy to make human errors, such as the front and back of some labels are mixed, or the labels are stacked irregularly, causing wrinkles.

[0003] Therefore, how to design an automated equipment that can automatically sort the front and back sides of labels, efficiently press labels and avoid label structural defects has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The present invention provides a flexible label front and back side sorting mechanism, label pressing equipment and label pressing method, which are conducive to solving the problem that the current thin-sheet structure labels need to be manually sorted for the front and back sides, which is time-consuming and labor-intensive and easily causes label structure defects.

[0005] The present invention is achieved in that: The front and back side sorting mechanism of flexible labels comprises a material sorting turntable which can be rotated step by step around its own axial center line, a plurality of material sorting disks are centrally symmetrically arranged on the material sorting turntable, a sink for holding flexible labels is arranged on the top of the material sorting disk, and the material sorting disk at least constitutes a feeding station, a material sorting station and a discharging station after step-by-step displacement, a vibrating feeding disk for supplying flexible labels is arranged outside the feeding station, a material sorting device for adjusting the front and back sides of the labels is arranged above the material sorting station, a conveying device for outputting the labels is arranged outside the discharging station, a visual recognition module for detecting the front and back sides of the labels is arranged above the material sorting station, and a visual positioning module for detecting the position of the labels is arranged above the discharging station; The material sorting device comprises a material box capable of longitudinal lifting and lowering, the material box can be lowered at a threshold position and is covered on the top of the material sorting tray, so that a pounding cavity is formed between the inner side of the material box and the material sorting tray, a transparent observation plate is provided on the top of the material box, the visual recognition module is located above the observation plate and can detect and identify the front and back conditions of the labels in the pounding cavity through the observation plate, and a pounding drive structure is provided on the material box, which can control the labels in the pounding cavity to flip and / or move; The conveying device includes a transfer device capable of moving forward and backward, left and right, and up and down. The transfer device has a negative pressure suction cup, and the negative pressure suction cup can cooperate with the visual positioning module to transfer and output the target label on the discharge station.

[0006] On the basis of the above technical solution, a weighing hopper is provided at the output end of the vibrating feed tray, and the weighing hopper is provided with an opening and closing control structure, which can input labels of threshold weight into the material sorting tray at the feed station in batches.

[0007] Based on the above technical solution, the material sorting device includes a material sorting bracket, on which a lifting cylinder is provided, the telescopic rod of the lifting cylinder is transmission-connected to a vertically arranged pull rod, the bottom of the pull rod is connected to the material box, and the visual recognition module is arranged on the material sorting bracket.

[0008] On the basis of the above technical solution, a number of air holes are evenly distributed on the side walls of the material box, and the inner diameter of the air holes is smaller than the label outline; a blowing interface is provided on at least one side of the material box for connecting a pulse air pipe, and the blowing interface can perform pulse blowing toward the inner pounding cavity to constitute the pounding drive structure.

[0009] On the basis of the above technical solution, the pounding drive structure is a vibrator arranged on the material box.

[0010] Based on the above technical solution, the conveying device includes a plate chain conveyor line, on which a number of transfer tooling seats are arranged. The top of the transfer tooling seat is provided with a tooling groove for accommodating labels, and a negative pressure hole connected to the negative pressure mechanism is provided in the tooling groove.

[0011] A label pressing device comprises the aforementioned flexible label front and back side sorting mechanism, and also comprises a label pressing device and a label pressing turntable located at the output end of a conveying device, a label pressing turntable capable of step-by-step rotation is provided on one side of the label pressing device, the flexible label front and back side sorting mechanism, the label pressing device and the label pressing turntable are arranged in a frame; a plurality of label pressing station disks are centrally symmetrically arranged on the label pressing turntable, and the label pressing station disks at least constitute a label pressing station after step-by-step rotation, the label pressing device comprises a punch die group located directly above the label pressing station, the punch die group is connected to a stamping cylinder, the working end of the punch die group comprises a pressure plate for pressing and holding a printed label carrier and a hot pressing punch for label pressing, and the label pressing device also comprises a rotating feeding structure located between the output end of the conveying device and the label pressing station.

[0012] On the basis of the above technical solution, a buffer seat and a negative pressure adsorption module are provided at the bottom of the labeling station plate.

[0013] A pressure marking method, using the aforementioned pressure marking device, comprises the following steps: S1: Pour the disordered flexible labels on the front and back sides into a vibrating feed tray, and the vibrating feed tray transports the flexible labels in batches according to the threshold weight to a sorting tray located at the feeding station, and the sorting tray then enters the sorting station; S2: The material box moves downward and abuts against the top of the material sorting tray at the material sorting station to form a tamping cavity. The visual recognition module detects the front and back sides of the labels below. When the number of front labels in the detection result is not less than the threshold value, the material box moves upward, and the material sorting tray at the material sorting station enters the discharging station; when the number of front labels in the detection result is less than the threshold value, the tamping drive structure is started to flip and / or move the labels in the tamping cavity, and the visual recognition module performs detection again, and the above process is repeated; S3: The visual positioning module detects the position of the front labels in the material sorting tray at the material discharging station, obtains relevant data, generates instructions for transfer and output by the conveying device; and when the transfer of the front labels in the material sorting tray is completed, the visual positioning module detects and calculates the number of labels in the material sorting tray below. When the detection result is not less than the threshold value, the material sorting tray is directly transferred to the material sorting station; when the detection result is less than the threshold value, the material sorting tray enters the material feeding station, and the vibrating feeding tray and the weighing hopper continue to input labels, and then enter the material sorting station for cyclic operation; S4: The conveying device and the rotating feeding structure transfer the labels one by one to the printing carrier at the pressing plate station; S5: The punch die moves downward to complete the hot pressing transfer; S6: The label pressing station disc rotates and outputs, and the operator takes the material and replenishes the label printing carrier to the label pressing station disc, and the operation is cyclic.

[0014] Compared with the prior art, the present invention has at least the following advantages: 1. High degree of automation: By integrating key components such as vibrating feed tray, material sorting turntable, material sorting device, conveying device and label pressing device, the full automation of label sorting and label pressing is realized, which greatly reduces labor costs and labor intensity.

[0015] 2. High sorting efficiency: By utilizing the synergy of the visual recognition module and the tamping drive structure, the front and back sides of the labels can be quickly and accurately identified and adjusted to ensure that the number of front labels meets the needs of subsequent labeling operations.

[0016] 3. High precision of label pressing: Through the joint action of the buffer seat and the negative pressure adsorption module, the displacement or deformation of the printed label carrier during the label pressing process is effectively prevented, ensuring the quality of label pressing and the integrity of the label.

[0017] 4. Wide scope of application: The flexible label front and back sorting mechanism and label pressing equipment of the present invention are not only suitable for the footwear and finished fabric industries, but can also be widely used in other fields requiring thermal transfer labels, and have high versatility and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of a flexible label front and back side sorting mechanism in one embodiment; Figure 2 for Figure 1 Schematic diagram of the positional relationship between the material sorting turntable, vibrating feed tray, material sorting device and visual positioning system; Figure 3 for Figure 2 Schematic diagram of the three-dimensional structure of the material sorting device; Figure 4 for Figure 3 A cross-sectional view of Figure 5 for Figure 1 A schematic diagram of the structure of the conveying device; Figure 6 for Figure 5 Structural schematic diagram of the intermediate transfer tooling seat; Figure 7 This is a schematic diagram of the structure of a pressure labeling device in one embodiment; Figure 8 for Figure 7 A top view of the internal structure; Fig. 9 for Figure 8 Schematic diagram of the three-dimensional structure of the medium pressure mark turntable and the pressure mark device; Fig.10 for Fig. 9 A partial enlarged view of the middle punch die.

[0020] The following are marked in the figure: 1. Vibrating feed plate; 11. Weighing hopper; 2. Material sorting turntable; 21. Material sorting plate; 3. Material sorting device; 31. Material sorting bracket; 32. Lifting cylinder; 33. Pull rod; 34. Material box; 35. Observation plate; 36. Blowing interface; 37. Buffer rod; 38. Block; 4. Visual inspection system; 41. Visual recognition module; 42. Visual positioning module; 5. Conveying device; 51. Plate chain conveyor line; 52. Transfer tooling seat; 521, tooling slot; 522, negative pressure hole; 6, transfer device; 61, displacement module; 7, pressure marking device; 71, pressure marking bracket; 72, rotating motor; 73, rotating shaft; 74, rotating arm; 75, stamping cylinder; 76, punch module; 761, pressing plate; 762, hot pressing punch; 77, support rod; 78, pneumatic slip ring; 8, pressure marking turntable; 81, pressure marking station plate; 82, buffer seat; 9, rack. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention.

[0022] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to an element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0024] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1: Combination Figure 1-6The present embodiment discloses a flexible label front and back sorting mechanism, which aims to achieve efficient and accurate sorting of the front and back of labels and subsequent automated label pressing operations through mechanical automation means, thereby improving production efficiency, reducing labor costs, and ensuring the integrity and printing quality of the labels.

[0026] The flexible label front and back side sorting mechanism specifically includes a material sorting turntable 2 that can rotate step by step around its own axial center line. The bottom of the material sorting turntable 2 is connected to a stepping motor for transmission. Three material sorting trays 21 are centrally symmetrically arranged on the material sorting turntable 2. A sink for holding flexible labels is provided on the top of the material sorting tray 21. After stepping and shifting, the material sorting trays 21 constitute a feeding station, a material sorting station and a discharging station.

[0027] A vibrating feed tray 1 for supplying flexible labels is arranged outside the feeding station. To ensure that the number of labels input each time is appropriate, a weighing hopper 11 is also arranged at the output end of the vibrating feed tray 1, and labels of threshold weight are input in batches through an opening and closing control structure.

[0028] A material sorting device 3 for adjusting the front and back sides of the label is arranged above the material sorting station. Specifically, the material sorting device 3 includes a material sorting bracket 31 for connecting an external carrier. The material sorting bracket 31 is a horizontal plate structure. Lifting cylinders 32 are arranged on the left and right sides of the material sorting bracket 31. The telescopic rod of the lifting cylinder 32 is vertically upward, and is connected to two vertically arranged pull rods 33 in front and behind through a connecting rod transmission. There are four pull rods 33 symmetrically arranged on the left and right. The bottom of the pull rod 33 is connected to the material box 34. The lifting cylinder can control the material box 34 to lift and lower longitudinally to adjust the spacing between the bottom of the material box 34 and the material sorting tray 21.

[0029] The material box 34 can be lowered to the top of the material sorting tray 21 at the threshold position (i.e., the material sorting station) to form a pounding cavity between the inner side of the material box 34 and the material sorting tray 21. An opening is provided on the top of the material box 34, and a transparent observation plate 35 is provided at the opening. The observation plate 35 is detachably connected to the top of the material box 34 by bolts. The visual recognition module 41 is located on the material sorting bracket 31 above the observation plate 35, and can detect and identify the front and back conditions of the labels in the pounding cavity through the observation plate 35, specifically, detect the number of internal labels in the front posture.

[0030] The material box 34 is provided with a material tamping driving structure, which can control the labels in the material tamping cavity to flip and / or move. Figure 3 and Figure 4In this embodiment, a plurality of air holes are evenly distributed on the side walls of the material box 34, and the inner diameter of the air holes is smaller than the outline of the label. This structure ensures that the air between the inner cavity of the pounding material and the external space is connected and that there is no leakage of the label. Blowing interfaces 36 are provided on the left and right sides of the material box 34 for connecting the pulse air pipe. The blowing interfaces 36 can perform pulse blowing toward the inner cavity of the pounding material to form the pounding material driving structure. Among them, the blowing interface 36 is located close to the bottom of the material box 34, so that its blowing position is as close as possible to the bottom of the material sorting tray 21, so as to blow up more labels. After the labels are blown up, they flip over, which is conducive to turning over the labels that were originally facing up. After each blowing, the visual recognition module 41 will re-detect, and the material box 34 will be separated from the material sorting tray 21 after the threshold condition is reached. Among them, the visual recognition module 41 uses a CCD camera to collect images, and analyzes and recognizes the collected images through an image processing algorithm. It is a prior art, and its specific structure and working principle are not described here. Those skilled in the art can select and implement from the prior art according to actual operating conditions.

[0031] In other embodiments, the pounding material driving structure is a vibrator arranged on the material box 34, which uses vibration to realize the flipping operation of the label in the pounding material cavity; or a vortex blowing device is used to increase the airflow rotation direction by spiral air outlet to improve the success rate of label flipping.

[0032] Furthermore, a vertical buffer rod 37 is movably connected to the outer wall of the material box 34, a stopper 38 is connected to the bottom of the buffer rod 37, a buffer spring (not shown in the figure) is arranged between the stopper 38 and the material box 34, and the buffer spring is sleeved on the buffer rod 37. Its function is to enable the stopper 38 to tightly abut the material sorting tray 21 below after descending, thereby ensuring the closure of the bottom gap and preventing the internal labels from escaping.

[0033] A conveying device 5 for outputting labels is arranged outside the discharging station, a visual recognition module 41 for detecting the front and back sides of the labels is arranged above the material sorting station, and a visual positioning module 42 for detecting the position of the labels is arranged above the discharging station; the conveying device 5 includes a negative pressure suction cup that can move forward and backward, left and right, and up and down, and the negative pressure suction cup can cooperate with the visual positioning module 42 to transport and output the target label on the discharging station. Among them, the visual positioning module 42 uses a CCD camera to capture images, and analyzes and identifies the captured images through an image processing algorithm. It is a prior art, and its specific structure and working principle are not described here in detail. Those skilled in the art can select and implement from the prior art according to the actual working conditions. The visual recognition module 41 and the visual positioning module 42 in this embodiment constitute a visual inspection system 4.

[0034] Specific, combined Figure 5 and Figure 6The conveying device 5 includes a plate chain conveyor line 51, and a plurality of transfer tooling seats 52 are arranged on the plate chain conveyor line 51. A tooling slot 521 for accommodating labels is arranged on the top of the transfer tooling seat 52, and a negative pressure hole 522 connected to the negative pressure mechanism is arranged in the tooling slot 521. A transfer device 6 is arranged above the plate chain conveyor line 51, and the transfer device 6 includes the negative pressure suction cup and a displacement module 61 connected to the negative pressure suction cup. The displacement module 61 has slide rails that move forward and backward, left and right, and up and down, forming a three-axis displacement mechanism, which is a prior art. Its specific structure and working principle will not be repeated here. Those skilled in the art can select and implement from the prior art according to actual operation conditions.

[0035] Example 2: Combination Figure 7-10 The present embodiment discloses a label pressing device, including the flexible label front and back side sorting mechanism in Embodiment 1, and also including a label pressing device 7 and a label pressing turntable 8 located at the output end of the conveying device 5, and a label pressing turntable 8 capable of stepping rotation is provided on one side of the label pressing device 7. The flexible label front and back side sorting mechanism, the label pressing device 7 and the label pressing turntable 8 are arranged in a frame 9, and a human-computer interaction module is also provided on the frame 9, specifically including a display screen, a keyboard, a mouse and a device control panel.

[0036] Four label pressing station disks 81 are centrally symmetrically arranged on the label pressing turntable 8. The label pressing station disks 81 at least constitute a label pressing station after step-by-step rotation. The label pressing device 7 includes a label pressing bracket 71 for connecting to the frame 9. A rotating motor 72 is provided at the bottom of the label pressing bracket 71. A vertical rotating shaft 73 is connected to the output end of the rotating motor 72. A horizontal rotating arm 74 is connected to the bottom of the rotating shaft 73. Negative pressure suction cups (not shown in the figure) are connected to the front and rear ends of the rotating arm 74 for transferring the label on the transfer fixture seat 52 to the printing carrier.

[0037] Furthermore, the stamping bracket 71 is located at the punch module 76 just above the stamping station, the punch module 76 is connected to the stamping cylinder 75, and the working end of the punch module 76 has a pressure plate 761 for holding the printed label carrier and a hot pressing punch 762 for stamping, which can perform hot pressing transfer on the label located below.

[0038] In order to improve the stability and accuracy of the pressure marking operation, Fig. 9 As shown, a buffer seat 82 and a negative pressure adsorption module are also provided at the bottom of the label pressing station disc 81. An air vent is provided on the label pressing station disc 81, and a negative pressure pipeline is provided at the bottom, which is connected to an external negative pressure mechanism and is used to fix the printed label carrier during operation to prevent it from displacement or deformation during the label pressing process.

[0039] A support rod 77 is also vertically connected to the front side of the pressure mark bracket 71. The bottom of the support rod 77 is inserted into the axial center position of the pressure mark turntable 8 and is connected to a pneumatic slip ring 78 for installation transition of the air path.

[0040] Embodiment 3: This embodiment discloses a labeling method, which uses a labeling device in Embodiment 2, including the following steps: S1: pouring the disordered flexible labels on the front and back sides into the vibrating feed tray 1, and the vibrating feed tray 1 transports the flexible labels in batches according to the threshold weight (taking 20g per group, about 30 labels as an example) to the material sorting tray 21 located at the feeding station, and the material sorting tray 21 then enters the material sorting station to complete automatic loading; S2: the material box 34 descends to abut against the material sorting tray 2 located at the material sorting station 1 top, forming a pounding cavity, the visual recognition module 41 detects the front and back sides of the labels below, and when the number of front labels in the detection result is not less than the threshold value (10 is used as the threshold value), the material box 34 moves upward, and the material sorting tray 21 located at the material sorting station enters the material discharging station; when the number of front labels in the detection result is less than the threshold value (10 is used as the threshold value), the pounding drive structure is started to flip and / or move the labels in the pounding cavity, and the visual recognition module 41 detects again, and repeats the above process; S3: the visual positioning module 42 detects the position of the front labels in the material sorting tray 21 located at the material discharging station, and generates instructions after obtaining relevant data to be transferred and output by the conveying device 5; and when the transfer of the front labels in the material sorting tray 21 is completed, the visual positioning module 42 detects and calculates the number of labels in the lower material sorting tray 21, and when the detection result is not less than the threshold value (5 is used as the threshold value), the material sorting tray 21 is directly transferred to the material sorting station; when the detection result is When the number is less than the threshold value (5 is taken as the threshold value), the material sorting tray 21 enters the feeding station, and the vibrating feeding tray 1 and the weighing hopper 11 continue to input labels, and then enters the material sorting station for cyclic operation; S4: the conveying device 5 and the rotating feeding structure transfer the labels one by one to the printing carrier at the pressure plate 761 station; S5: the punch module 76 moves downward to complete the hot pressing transfer; S6: the label pressing station tray 81 rotates and outputs, the operator takes the material and replenishes the printing carrier to the label pressing station tray 81, and the operation is cyclic.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Flexible label front and back side sorting mechanism, characterized in that: The invention comprises a material sorting turntable (2) capable of stepwise rotation around its own axial center line, a plurality of material sorting disks (21) are centrally symmetrically arranged on the material sorting turntable (2), a sink for holding flexible labels is arranged on the top of the material sorting disk (21), and the material sorting disk (21) at least forms a feeding station, a material sorting station and a discharging station after stepwise displacement, a vibrating feeding disk (1) for supplying flexible labels is arranged outside the feeding station, a material sorting device (3) for adjusting the front and back sides of the labels is arranged above the material sorting station, a conveying device (5) for outputting the labels is arranged outside the discharging station, a visual recognition module (41) for detecting the front and back sides of the labels is arranged above the material sorting station, and a visual positioning module (42) for detecting the position of the labels is arranged above the discharging station; The material sorting device (3) comprises a material box (34) capable of being lifted and lowered longitudinally. The material box (34) can be lowered at a threshold position and covered on the top of the material sorting plate (21), so that a material pounding cavity is formed between the inner side of the material box (34) and the material sorting plate (21). A transparent observation plate (35) is provided on the top of the material box (34). The visual recognition module (41) is located above the observation plate (35) and can detect and identify the front and back conditions of the labels in the material pounding cavity through the observation plate (35). A material pounding drive structure is provided on the material box (34), and the material pounding drive structure can control the labels in the material pounding cavity to perform flipping and / or displacement activities. The conveying device (5) comprises a transfer device (6) capable of front-to-back, left-to-right, and up-and-down displacement, the transfer device (6) having a negative pressure suction cup, and the negative pressure suction cup can cooperate with the visual positioning module (42) to transfer and output the target label on the discharge station.

2. The flexible label front and back sorting mechanism according to claim 1, characterized in that: The output end of the vibrating feed tray (1) is provided with a weighing hopper (11), and the weighing hopper (11) is provided with an opening and closing control structure, which can input labels of threshold weight into the material sorting tray (21) at the feed station in batches.

3. The flexible label front and back sorting mechanism according to claim 1, characterized in that: The material sorting device (3) comprises a material sorting bracket (31), a lifting cylinder (32) is arranged on the material sorting bracket (31), a telescopic rod of the lifting cylinder (32) is transmission-connected to a vertically arranged pull rod (33), the bottom of the pull rod (33) is connected to the material box (34), and the visual recognition module (41) is arranged on the material sorting bracket (31).

4. The flexible label front and back sorting mechanism according to claim 3, characterized in that: The side wall of the material box (34) is evenly distributed with a plurality of air holes, the inner diameter of the air holes being smaller than the outline of the label; at least one side of the material box (34) is provided with an air blowing interface (36) for connecting a pulse air pipe, and the air blowing interface (36) is capable of performing pulse air blowing toward the inner pounding cavity, thereby forming the pounding drive structure.

5. The flexible label front and back sorting mechanism according to claim 1, characterized in that: The pounding drive structure is a vibrator arranged on the material box (34).

6. The flexible label front and back sorting mechanism according to claim 1, characterized in that: The conveying device (5) comprises a plate chain conveyor line (51), on which a plurality of transfer tooling seats (52) are arranged, and the top of the transfer tooling seat (52) is provided with a tooling slot (521) for accommodating labels, and a negative pressure hole (522) connected to a negative pressure mechanism is arranged in the tooling slot (521).

7. A labeling device, characterized in that: The flexible label front and back side sorting mechanism comprises the flexible label front and back side sorting mechanism as claimed in any one of claims 1 to 6, and further comprises a label pressing device (7) and a label pressing turntable (8) located at the output end of the conveying device (5), a label pressing turntable (8) capable of stepping and rotating is provided on one side of the label pressing device (7), and the flexible label front and back side sorting mechanism, the label pressing device (7) and the label pressing turntable (8) are arranged in a frame (9); a plurality of label pressing station disks (81) are centrally symmetrically arranged on the label pressing turntable (8), and the label pressing station disks (81) are provided on the label pressing turntable (8). The marking station disk (81) at least forms a marking station after step-by-step rotation. The marking device (7) comprises a punch die set (76) located directly above the marking station. The punch die set (76) is connected to a punching cylinder (75). The working end of the punch die set (76) comprises a pressing plate (761) for pressing a printed marking carrier and a hot pressing punch (762) for pressing the marking. The marking device (7) further comprises a rotating feeding structure located between the output end of the conveying device (5) and the marking station.

8. A pressure labeling device according to claim 7, characterized in that: A buffer seat (82) and a negative pressure adsorption module are provided at the bottom of the labeling station plate (81).

9. A pressure labeling method, using a pressure labeling device according to claim 7, characterized in that: The following steps are involved: S1: pouring the disordered flexible labels on the front and back sides into a vibrating feed tray (1), the vibrating feed tray (1) conveys the flexible labels in batches according to the threshold weight to a material sorting tray (21) located at the feed station, and the material sorting tray (21) then enters the material sorting station; S2: The material box (34) moves downward to abut against the top of the material sorting plate (21) located at the material sorting station to form a material pounding inner cavity, and the visual recognition module (41) detects the front and back sides of the labels below. When the number of front labels in the detection result is not less than the threshold value, the material box (34) moves upward, and the material sorting plate (21) located at the material sorting station enters the material discharging station; when the number of front labels in the detection result is less than the threshold value, the material pounding drive structure is started to flip and / or move the labels in the material pounding inner cavity, and the visual recognition module (41) performs detection again, and the above process is repeated; S3: The visual positioning module (42) detects the position of the front labels in the material sorting tray (21) located at the material discharging station, obtains relevant data, generates instructions, and outputs the labels through the conveying device (5); and when the front labels in the material sorting tray (21) are transported, the visual positioning module (42) detects and calculates the number of labels in the lower material sorting tray (21), and when the detection result is not less than the threshold value, the material sorting tray (21) is directly transferred to the material sorting station; when the detection result is less than the threshold value, the material sorting tray (21) enters the material feeding station, and the vibrating feeding tray (1) and the weighing hopper (11) continue to input labels, and then enters the material sorting station for cyclic operation; S4: The conveying device (5) and the rotating feeding structure transport the labels one by one to the printing carrier at the pressing plate (761) station; S5: The punch die set (76) moves downward to complete the hot pressing transfer; S6: The label pressing station disc (81) rotates and outputs, and the operator takes the material and replenishes the label printing carrier to the label pressing station disc (81), and the operation is cyclical.

Images