Visual labeling machine

Abstract

The utility model relates to the technical field of labeling equipment, and discloses a visual labeling machine which comprises a rack, a label carrier, a workpiece jig, a conveying device, a first positioning device and a manipulator, a labeling station is arranged on the rack; the label carrier is arranged on the rack and is used for placing and limiting labels; the workpiece jig is provided with a positioning groove used for containing and positioning a product to be labeled. The conveying device is arranged on the rack, the output end of the conveying device is partially or completely supported on the rack in a sliding mode and connected with the workpiece jig, and the conveying device is used for conveying the workpiece jig; the first positioning device is arranged on the labeling station of the rack and is used for fixing the workpiece jig on the labeling station; the mechanical arm is arranged on the rack and used for transferring and attaching the label on the label carrier to the product to be labeled on the labeling station. The visual labeling machine provided by the utility model can solve the problem of how to improve the labeling precision.

Description

Technical Field

[0001] The utility model relates to the technical field of labeling equipment, in particular to a visual labeling machine. Background Art

[0002] A labeling machine is a device that applies labels to PCBs (printed circuit boards) awaiting labeling. Labeling machines typically utilize a linear assembly line. The process is as follows: the product to be labeled is placed on a conveyor belt and transported to a pre-set labeling location. Once the product reaches the designated location, the labeling mechanism begins operating, moving horizontally and vertically to grab the label and apply it to the surface of the product. During this process, the labeling machine typically uses a suction head to pick up the label and then uses a pneumatic cylinder to lower the head and apply it to the surface of the product.

[0003] However, when the cylinder drives the suction head down to apply the label, it exerts a downward pressure on the product to be labeled. Because the product to be labeled is transported to the labeling station via a conveyor belt, which is suspended in the air and lacks sufficient support and stability, the product to be labeled can easily shift under the pressure, resulting in inaccurate label placement and deviation.

[0004] In view of the above problems, it is necessary to develop a visual labeling machine to improve labeling accuracy. Utility Model Content

[0005] (1) Technical problems solved

[0006] The utility model provides a visual labeling machine, which can at least solve the technical problem of how to improve labeling accuracy.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a visual labeling machine, comprising:

[0009] Frame, which is equipped with a labeling station;

[0010] The label carrier is provided on the frame and is used for placing and positioning the labels;

[0011] A workpiece jig, which is provided with a positioning groove for accommodating and positioning the product to be labeled;

[0012] The conveying device is arranged on the frame, the output end of the conveying device is partially or completely slidably supported on the frame and connected to the workpiece fixture, and the conveying device is used to convey the workpiece fixture;

[0013] The first positioning device is provided on the labeling station of the frame and is used to fix the workpiece fixture at the labeling station;

[0014] The robot is installed on the frame and is used to transfer the labels on the label carrier and attach them to the products to be labeled at the labeling station.

[0015] It is further arranged that the aforementioned conveying device includes a conveyor chain, a sprocket and a sprocket driving mechanism. There are two sprockets, both of which are rotatably arranged on the frame and engage with the conveyor chain. The frame includes a slide rail, which is arranged between the two sprockets. The conveyor chain is partially slidably supported on the slide rail and is fixed to the workpiece fixture. The sprocket driving mechanism is arranged on the frame and is connected to the sprocket transmission. The sprocket driving mechanism is used to drive the sprocket to rotate, so as to drive the conveyor chain to convey the workpiece fixture.

[0016] It is further provided that the number of the aforementioned workpiece fixtures is at least two and they are fixedly installed on the conveyor chain at intervals.

[0017] Furthermore, the aforementioned visual labeling machine also includes a first visual detection device, which is arranged on the frame and located above the conveying device, and is used to detect whether the attachment position of the label on the product is accurate.

[0018] Furthermore, the aforementioned visual labeling machine also includes a second visual detection device, which is arranged on the frame and located between the label carrier and the robot arm, and is used to detect whether the label on the robot arm meets the requirements.

[0019] Further, the aforementioned visual labeling machine also includes a rolling device, which includes a roller and a roller driving mechanism. The roller is rotatably arranged on the frame, and the roller driving mechanism is arranged on the frame and is connected to the roller transmission. The roller driving mechanism is used to drive the roller to rotate relative to the workpiece fixture to roll the label on the product.

[0020] Further, the aforementioned frame is also provided with a blanking station, and the visual labeling machine also includes:

[0021] The second positioning device is provided on the unloading station of the frame and is used to fix the workpiece fixture at the unloading station;

[0022] The unloading device is installed on the frame and is used to grab the labeled products from the unloading station and move them out of the workpiece fixture.

[0023] Further, the aforementioned label carrier includes:

[0024] A carrier plate is provided on the frame and is used for placing labels;

[0025] A limiting rod is slidably mounted on the frame and is located on one side of the carrier plate;

[0026] The limit rod driving mechanism is arranged on the frame and is in driving connection with the limit rod. The limit rod driving mechanism is used for driving the limit rod to move so as to limit the label on the carrier plate.

[0027] It is further configured that the aforementioned frame is provided with a storage space for accommodating and stacking labels, and the visual labeling machine also includes a loading device, which includes a suction cup and a suction cup driving mechanism. The suction cup is used to absorb or release the label, and the suction cup driving mechanism is provided on the frame and is connected to the suction cup transmission. The suction cup driving mechanism is used to drive the suction cup to reciprocate between the storage space and the label carrier, and a clearance groove is provided on the carrier plate for the suction cup to slide in or out.

[0028] It is further configured that the aforementioned loading device also includes at least two shelves and a shelf driving member, at least two shelves are arranged on the frame along vertical intervals and are used for placing single labels, the shelf driving member is arranged on the frame and is connected to the shelf transmission, and the shelf driving member is used to drive the shelf into or out of the storage space.

[0029] (3) Beneficial effects

[0030] Compared with the existing technology, the visual labeling machine provided by the present invention has the following beneficial effects:

[0031] 1. When the visual labeling machine provided by the present invention is used, first, the product to be labeled (such as a PCB board) is placed in the positioning groove of the workpiece fixture, and the label is placed and restricted on the label carrier; then, the conveying device conveys the workpiece fixture to the labeling station, and the first positioning device fixes the workpiece fixture at the labeling station. At the same time, the robot transfers the label on the label carrier and attaches it to the product to be labeled at the labeling station, completing the labeling of the product; finally, the first positioning device releases the positioning of the workpiece fixture, and the conveying device sends the workpiece fixture out of the labeling station. It can be seen that the visual labeling machine can limit the position of the label through the label carrier to ensure that the robot can accurately grasp the label, and the first positioning device can fix the workpiece fixture at the labeling station, effectively preventing the workpiece fixture and the product to be labeled thereon from positional deviation during the labeling process. The combination of the two can effectively improve labeling accuracy.

[0032] 2. During the labeling process, the output end of the conveying device is supported by the frame. Compared with the suspended conveyor belt, it can effectively improve the stability of the conveying process, further avoid the position displacement of the workpiece fixture and the products to be labeled on it due to the labeling punching pressure, ensure the stability of the labeling process, and thus further improve the labeling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A three-dimensional diagram of a visual labeling machine in an embodiment;

[0034] Figure 2 Schematic diagram of the structure of the workpiece fixture, the conveying device and the first positioning device in the embodiment;

[0035] Figure 3 Schematic diagram of the structure of the label carrier in the embodiment.

[0036] Figure Number:

[0037] 101, rack; 1011, labeling station; 1012, slide rail; 1013, unloading station; 1014, storage space;

[0038] 102. Label carrier; 1021. Carrier plate; 10211. Recess; 1022. Limit rod; 1023. Limit rod driving mechanism;

[0039] 103, workpiece fixture; 1031, positioning groove; 1032, socket;

[0040] 104. Conveying device; 1041. Conveying chain; 1042. Sprocket; 1043. Sprocket drive mechanism;

[0041] 105. First positioning device; 1051. Insertion rod; 1052. Telescopic driving member;

[0042] 106. Robotic arm; 1061. Rotating mechanism; 1062. Vacuum suction plate;

[0043] 107. First visual inspection device; 108. Second visual inspection device;

[0044] 109. Rolling device; 1091. Roller; 1092. Roller drive mechanism;

[0045] 110. Second positioning device; 111. Unloading device;

[0046] 112. Loading device; 1121. Suction cup; 1122. Suction cup drive mechanism; 1123. Shelf; 1124. Shelf drive member;

[0047] 200. Label. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0049] The utility model provides a visual labeling machine, which is used to solve the problem of how to improve labeling accuracy.

[0050] See Figure 1 As shown, Figure 1 10 is a three-dimensional diagram of a visual labeling machine in an embodiment, which includes a frame 101 , a label carrier 102 , a workpiece fixture 103 , a conveying device 104 , a first positioning device 105 and a robot 106 .

[0051] A labeling station 1011 is provided on the frame 101 .

[0052] The label carrier 102 is mounted on the frame 101 by welding or screwing. The label carrier 102 is used to place the label 200 and limit the label 200 .

[0053] The workpiece fixture 103 has a positioning groove 1031, which is used to accommodate and position the product to be labeled.

[0054] The conveying device 104 is installed on the frame 101 , and the output end of the conveying device 104 is partially or completely slidably supported on the frame 101 , and the output end of the conveying device 104 is connected to the workpiece fixture 103 . The conveying device 104 is used to convey the workpiece fixture 103 .

[0055] The first positioning device 105 is installed on the labeling station 1011 of the frame 101 . The first positioning device 105 is used to fix the workpiece fixture 103 on the labeling station 1011 .

[0056] The robot arm 106 is installed on the frame 101 , and is used to transfer the label 200 on the label carrier 102 and attach it to the product to be labeled at the labeling station 1011 .

[0057] When using the visual labeling machine of the above technical solution, first, the product to be labeled (such as a PCB board) is placed in the positioning groove 1031 of the workpiece fixture 103, and the label 200 is placed and restrained on the label carrier 102. Then, the conveying device 104 transports the workpiece fixture 103 to the labeling station 1011. The first positioning device 105 fixes the workpiece fixture 103 in the labeling station 1011. At the same time, the robot 106 transfers the label 200 from the label carrier 102 and attaches it to the product to be labeled in the labeling station 1011, completing the product labeling. Finally, the first positioning device 105 releases the positioning of the workpiece fixture 103, and the conveying device 104 transports the workpiece fixture 103 out of the labeling station 1011. It can be seen that the visual labeling machine can limit the position of the label 200 through the label carrier 102 to ensure that the robot 106 can accurately grasp the label 200, and the first positioning device 105 can fix the workpiece fixture 103 at the labeling station 1011, effectively avoiding the workpiece fixture 103 and the products to be labeled thereon from positional displacement during the labeling process. The combination of the two can effectively improve the labeling accuracy; and during the labeling process, the visual labeling machine supports the output end of the conveying device 104 through the frame 101, which can effectively improve the stability of the conveying process compared to the suspended conveyor belt, and further avoid the workpiece fixture 103 and the products to be labeled thereon from positional displacement due to the action of the labeling punching pressure, thereby ensuring the stability of the labeling process and further improving the labeling accuracy.

[0058] The above-mentioned robot 106 can be composed of two existing rotating mechanisms 1061, an existing lifting mechanism and an existing vacuum suction plate 1062. In this way, the two rotating mechanisms are connected in sequence, and can drive the lifting mechanism and the vacuum suction plate 1062 to move together between the label carrier 102 and the labeling station 1011, so that the vacuum suction plate 1062 can absorb and grasp the label 200 on the label carrier 102, and transfer the label 200 to the labeling station 1011. Finally, the lifting mechanism drives the vacuum suction plate 1062 to descend to attach the label 200 to the product to be labeled in the labeling station 1011.

[0059] See Figure 1 and Figure 2 As shown, Figure 210. The structural diagram of the workpiece fixture, the conveying device and the first positioning device in the embodiment, in one embodiment of the conveying device 104, the conveying device 104 includes a conveyor chain 1041, a sprocket 1042 and a sprocket drive mechanism 1043. There are two sprockets 1042, and the sprockets 1042 are rotatably connected to the frame 101, and the sprockets 1042 are engaged with the conveyor chain 1041. The frame 101 includes a slide rail 1012, and the slide rail 1012 is located between the two sprockets 1042. The conveyor chain 1041 is partially slidably supported on the slide rail 1012, and the conveyor chain 1041 is fixedly connected to the workpiece fixture 103 by welding or screwing. The sprocket drive mechanism 1043 is installed on the frame 101, and the sprocket drive mechanism 1043 is transmission-connected to the sprocket 1042. The sprocket drive mechanism 1043 is used to drive the sprocket 1042 to rotate, so as to drive the conveyor chain 1041 to transport the workpiece fixture 103. In this way, the conveying device 104 replaces the existing belt-driven conveying mode with the chain-driven conveying mode, and can more accurately control the conveying position of the workpiece fixture 103, thereby improving the labeling accuracy.

[0060] The sprocket drive mechanism 1043 can be a combination of a rotary motor and a reduction gear set, and the output end is fixedly connected to the sprocket 1042 by welding or pinning. In this embodiment, the conveyor chain 1041 is a full circle. Figure 1 and Figure 2 The conveyor chain 1041 is only a schematic diagram, and the figure does not completely draw the entire circle of the conveyor chain 1041 and the workpiece fixture 103 fixed on the lower half of the conveyor chain 1041.

[0061] See Figure 1 and Figure 2 As shown, based on the above embodiment, the number of workpiece jigs 103 is at least two, and at least two workpiece jigs 103 are fixed at intervals on the conveyor chain 1041. In this way, the conveyor device 104 can continuously convey the products to be labeled one by one into the labeling station 1011 in sequence, greatly improving work efficiency. In addition, one workpiece jig 103 can be set at the labeling station 1011, and the other workpiece jigs 103 can be located at the loading station or other stations. In this way, multiple processes can be carried out simultaneously, further improving the work efficiency of the visual labeling machine.

[0062] See Figure 1 and Figure 2As shown, based on any of the above embodiments, the visual labeling machine further includes a first visual inspection device 107. The first visual inspection device 107 is mounted on the frame 101 and located above the conveyor device 104. The first visual inspection device 107 is used to detect whether the label 200 is accurately attached to the product. In this way, after labeling, the visual labeling machine can use the first visual inspection device 107 to detect whether the labeling position is accurate. If the first visual inspection device 107 fails the inspection, it can promptly alert the staff so that they can re-apply the label, effectively ensuring the labeling quality of the product.

[0063] The first visual inspection device 107 may also be configured to inspect whether the content of the label 200 meets the requirements.

[0064] See Figure 1 As shown, in addition to the first visual inspection device 107, the visual labeling machine further includes a second visual inspection device 108. The second visual inspection device 108 is mounted on the frame 101 and located between the label carrier 102 and the robot 106. The second visual inspection device 108 is used to inspect whether the label 200 on the robot 106 meets the requirements. Thus, before labeling, the visual labeling machine can inspect the label 200 on the robot 106 through the second visual inspection device 108, effectively preventing the robot 106 from affixing the wrong label 200 to the product, and effectively preventing the robot 106 from missing a label 200, which could result in a missing label 200 on the product.

[0065] The number of the first visual inspection device 107 and the second visual inspection device 108 can be set according to the size of the label 200. In this way, multiple first visual inspection devices 107 or second visual inspection devices 108 can be combined to form a larger visual inspection range that is compatible with the size of the label 200. In addition, the number of the first visual inspection device 107 and the second visual inspection device 108 can be slidably connected to the frame 101 to facilitate adjustment of the visual inspection range of the first visual inspection device 107 or the second visual inspection device 108. The first visual inspection device 107 and the second visual inspection device 108 can both use existing visual inspection devices such as CCD cameras.

[0066] See Figure 1 and Figure 2As shown, in addition to the first visual inspection device 107 described above, the visual labeling machine further includes a rolling device 109, which includes a roller 1091 and a roller drive mechanism 1092. The roller 1091 is rotatably coupled to the frame 101. The roller drive mechanism 1092 is mounted on the frame 101 and is in transmission connection with the roller 1091. The roller drive mechanism 1092 is used to drive the roller 1091 to rotate relative to the workpiece fixture 103 to roll the label 200 onto the product. In this way, after the first visual inspection device 107 detects that the product labeling is qualified, the conveying device 104 conveys the workpiece fixture 103 to the bottom of the roller 1091, and the roller drive mechanism 1092 drives the roller 1091 to rotate and roll the label 200 on the product, which can greatly reduce the gap between the label 200 and the product labeling surface, and press the label 200 on the product labeling surface, so that the adhesion between the label 200 and the product is increased, thereby ensuring the tightness and quality of the labeling, and effectively preventing the label 200 from warping or falling off.

[0067] The roller drive mechanism 1092 may be a combination of a rotary motor and a belt, with the output end being circumferentially fixedly connected to the roller 1091 by welding or pinning.

[0068] See Figure 1 and Figure 2 As shown, based on any of the above embodiments, the frame 101 is further provided with a blanking station 1013. The visual labeling machine also includes a second positioning device 110 and a blanking device 111. The second positioning device 110 is mounted on the blanking station 1013 of the frame 101 and is used to fix the workpiece fixture 103 to the blanking station 1013. The blanking device 111 is mounted on the frame 101 and is used to grab the labeled products in the blanking station 1013 and remove them from the workpiece fixture 103. After labeling is completed, the conveying device 104 first transports the workpiece jig 103 to the unloading station 1013, and then the second positioning device 110 fixes the workpiece jig 103 to the unloading station 1013. Then, the unloading device 111 grabs the labeled product in the unloading station 1013 and removes it from the workpiece jig 103, thus achieving automatic unloading of the product, further improving the working efficiency of the visual labeling machine. Finally, the second positioning device 110 releases the positioning of the workpiece jig 103. The second positioning device 110 can effectively prevent the workpiece jig 103 and the labeled product on it from shifting during the unloading process, thereby ensuring the accuracy of the unloading position so that the unloading device 111 can grab the labeled product.

[0069] The above-mentioned unloading device 111 can be composed of an existing two-axis displacement mechanism and a vacuum suction cup 1121. The output end of the two-axis displacement mechanism is connected to the vacuum suction cup 1121. In this way, the two-axis displacement mechanism can drive the vacuum suction cup 1121 to rise and fall, and to move toward or away from the unloading station 1013 to absorb and grasp the labeled product and move it out of the workpiece fixture 103.

[0070] See Figure 2 As shown, in one embodiment of the first positioning device 105 and the second positioning device 110, the first positioning device 105 and the second positioning device 110 both include an insertion rod 1051 and a telescopic drive member 1052, and the workpiece fixture 103 has a socket 1032 for the insertion rod 1051. The telescopic drive member 1052 is mounted on the frame 101 by screwing or welding, and the output end of the telescopic drive member 1052 is connected to the insertion rod 1051 by screwing or welding. In this way, the telescopic drive member 1052 drives the insertion rod 1051 to be inserted into the socket 1032, thereby preventing the workpiece fixture 103 from moving relative to the insertion rod 1051, thereby positioning the workpiece fixture 103. Conversely, the telescopic drive member 1052 drives the insertion rod 1051 to move out of the socket 1032, thereby releasing the positioning of the workpiece fixture 103.

[0071] The telescopic drive member 1052 may use an existing linear displacement drive device such as a telescopic cylinder or a telescopic pole.

[0072] See Figure 1 and Figure 3 As shown, Figure 3 Schematic diagram of the structure of a label carrier in an embodiment. In one embodiment of the label carrier 102, the label carrier 102 includes a carrier plate 1021, a limiting rod 1022, and a limiting rod driving mechanism 1023. The carrier plate 1021 is mounted on the frame 101 by welding or screwing, and is used to place the label 200. The limiting rod 1022 is slidably connected to the frame 101 and is located on one side of the carrier plate 1021. The limiting rod driving mechanism 1023 is mounted on the frame 101 and is in driving connection with the limiting rod 1022. The limiting rod driving mechanism 1023 is used to drive the limiting rod 1022 to move, thereby confining the label 200 on the carrier plate 1021. In this way, since the label 200 is light and easy to shift, the limit rod drive mechanism 1023 and the limit rod 1022 can cooperate to limit the label 200 on the carrier 1021, effectively preventing the position of the label 200 from shifting, thereby ensuring that the robot 106 can accurately grasp the label 200.

[0073] The limiting rod driving mechanism 1023 can be an existing two-axis displacement mechanism, mounted on the frame 101 by screwing or welding, with its output end connected to the limiting rod 1022 by screwing or welding. In this way, the two-axis displacement mechanism can drive the limiting rod 1022 to translate along the length and width of the carrier plate 1021 to limit the label 200.

[0074] See Figure 1 and Figure 3 As shown, based on the above embodiment, the frame 101 has a storage space 1014 for accommodating and stacking labels 200. The visual labeling machine also includes a loading device 112, which includes a suction cup 1121 and a suction cup drive mechanism 1122. The suction cup 1121 is used to absorb or release the label 200. The suction cup drive mechanism 1122 is mounted on the frame 101 and is in transmission connection with the suction cup 1121. The suction cup drive mechanism 1122 is used to drive the suction cup 1121 to reciprocate between the storage space 1014 and the label carrier 102. The carrier plate 1021 is provided with a clearance groove 10211 for the suction cup 1121 to slide in or out. In this way, the visual labeling machine can stack and store multiple labels 200 at a time through the storage space 1014. Combined with the loading device 112, it can automatically load labels 200, further improving the working efficiency of the visual labeling machine and greatly reducing the reliance on manual labor. Among them, the specific process of loading the label 200 of the visual labeling machine is: first, the suction cup driving mechanism 1122 drives the suction cup 1121 to absorb and grasp the label 200 in the storage space 1014, and then drives the suction cup 1121 to slide into the clearance groove 10211 to move the label 200 to the preset position of the label carrier 102; then, the limit rod driving mechanism 1023 drives the limit rod 1022 to limit the label 200 on the carrier 1021; finally, the suction cup 1121 releases the label 200, and the automatic loading of the label 200 can be realized.

[0075] The suction cup 1121 can be an existing vacuum suction cup, and the suction cup drive mechanism 1122 can be an existing two-axis displacement mechanism, which is mounted on the frame 101 by screwing or welding, with its output end connected to the suction cup 1121 by screwing or welding. In this way, the two-axis displacement mechanism can drive the suction cup 1121 to move back and forth between the storage space 1014 and the label carrier 102, and can also drive the suction cup 1121 to move up and down, so that the suction cup 1121 can be extended into the storage space 1014 to grab the label 200.

[0076] See Figure 1As shown, in one embodiment of the loading device 112, the loading device 112 further includes at least two shelves 1123 and a shelf driver 1124. The at least two shelves 1123 are vertically spaced and mounted on the frame 101 by welding or screwing. The shelves 1123 are used to store individual labels 200. The shelf driver 1124 is mounted on the frame 101 and is in driving connection with the shelves 1123. The shelf driver 1124 is used to drive the shelves 1123 into or out of the storage space 1014. In this way, when the shelf driving member 1124 drives the shelf 1123 to move into the storage space 1014, the shelf 1123 can be used to place labels 200 and can also separate the labels 200 located on the upper and lower sides of the shelf 1123; when the suction cup driving mechanism 1122 drives the suction cup 1121 to absorb the labels 200 on the bottom layer in the storage space 1014, the shelf driving member 1124 drives the shelf 1123 to move out of the storage space 1014, which can release the limit of the shelf 1123 on the labels 200. At this time, the suction cup driving mechanism 1122 can drive the suction cup 1121 and the labels 200 to move out of the storage space 1014 together. It can be seen that the visual labeling machine can grab the loaded labels 200 one by one through the loading device 112, effectively avoiding the situation of grabbing multiple labels 200 at one time and causing waste.

[0077] The shelf drive 1124 can be installed on the frame 101 by screwing or welding using an existing linear displacement drive device such as a telescopic cylinder or a telescopic pole, and its output end is connected to the shelf 1123 by screwing or welding.

[0078] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A visual labeling machine, characterized in that, include: A frame, wherein a labeling station is provided on the frame; A label carrier, provided on the frame, and used for placing labels and limiting the position of the labels; A workpiece jig, wherein the workpiece jig is provided with a positioning groove for accommodating and positioning the product to be labeled; A conveying device, the conveying device is arranged on the frame, the output end of the conveying device is partially or completely slidably supported on the frame and connected to the workpiece fixture, and the conveying device is used to convey the workpiece fixture; A first positioning device is provided on the labeling station of the frame and is used to fix the workpiece fixture at the labeling station; The robot is arranged on the frame and is used to transfer the label on the label carrier and attach it to the product to be labeled at the labeling station.

2. The visual labeling machine according to claim 1, characterized in that: The conveying device includes a conveying chain, a sprocket and a sprocket driving mechanism. There are two sprockets, both of which are rotatably arranged on the frame and engaged with the conveying chain. The frame includes a slide rail, which is arranged between the two sprockets. The conveying chain is partially slidably supported on the slide rail and is fixedly connected to the workpiece fixture. The sprocket driving mechanism is arranged on the frame and is transmission-connected to the sprocket. The sprocket driving mechanism is used to drive the sprocket to rotate, so as to drive the conveying chain to convey the workpiece fixture.

3. The visual labeling machine according to claim 2, characterized in that: There are at least two workpiece jigs, which are fixed on the conveyor chain at intervals.

4. The visual labeling machine according to any one of claims 1 to 3, characterized in that: The visual labeling machine further includes a first visual detection device, which is provided on the frame and located above the conveying device, and is used to detect whether the attachment position of the label on the product is accurate.

5. The visual labeling machine according to claim 4, characterized in that: The visual labeling machine further includes a second visual detection device, which is provided on the frame and located between the label carrier and the manipulator, and is used to detect whether the label on the manipulator meets the requirements.

6. The visual labeling machine according to claim 4, characterized in that: The visual labeling machine also includes a rolling device, which includes a roller and a roller drive mechanism. The roller is rotatably arranged on the frame. The roller drive mechanism is arranged on the frame and is transmission-connected to the roller. The roller drive mechanism is used to drive the roller to rotate relative to the workpiece fixture to roll the label on the product.

7. The visual labeling machine according to any one of claims 1, 2, 3, 5 and 6, characterized in that: The frame is also provided with a blanking station, and the visual labeling machine further comprises: a second positioning device, the second positioning device being provided on the blanking station of the frame and being used to fix the workpiece fixture on the blanking station; The unloading device is arranged on the frame and is used to grab the labeled products at the unloading station and move them out of the workpiece fixture.

8. The visual labeling machine according to any one of claims 1, 2, 3, 5 and 6, characterized in that: The label carrier includes: A carrier plate, provided on the frame and used for placing the label; a limiting rod, slidably disposed on the frame and located on one side of the carrier plate; The limit rod driving mechanism is provided on the frame and is in driving connection with the limit rod. The limit rod driving mechanism is used for driving the limit rod to move so as to limit the label on the carrier plate.

9. The visual labeling machine according to claim 8, characterized in that: The frame is provided with a storage space for accommodating and stacking the labels. The visual labeling machine also includes a loading device, which includes a suction cup and a suction cup driving mechanism. The suction cup is used to absorb or release the label. The suction cup driving mechanism is provided on the frame and is transmission-connected to the suction cup. The suction cup driving mechanism is used to drive the suction cup to reciprocate between the storage space and the label carrier. The carrier plate is provided with a clearance groove for the suction cup to slide in or out.

10. The visual labeling machine according to claim 9, characterized in that: The loading device also includes at least two shelves and a shelf driving member. At least two of the shelves are arranged on the frame at vertical intervals and are used to place single labels. The shelf driving member is arranged on the frame and is connected to the shelf in a transmission manner. The shelf driving member is used to drive the shelf to move into or out of the storage space.

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