An intelligent multi-station labeling inkjet printer for silicone rubber product packaging

Abstract

The present invention relates to the technical field of packaging labeling and inkjet coding, and specifically discloses an intelligent multi-station labeling inkjet printer for silicone rubber product packaging, including a support base corresponding to a stacking mechanism, a horizontally arranged conveying frame fixedly installed above the support base, and conveying rollers arranged at equal intervals are rotatably installed inside the conveying frame, a carrying plate is fitted above the conveying rollers, and a matching loading tray is installed above the carrying plate. The intelligent multi-station labeling inkjet printer for silicone rubber product packaging is provided with four multi-axis mechanical arms as a whole. After the stacked packaging boxes are transported to the labeling and inkjet coding position by the conveying frame, the four multi-axis mechanical arms work simultaneously, first using a positioning camera to locate the position of the label sticker, and then a recognition camera recognizes the QR code on the surface of the label sticker to determine the specific content that needs to be coded, and then an automatic inkjet printer sprays the corresponding code on the surface of the label sticker.

Description

Technical Field

[0001] The invention relates to the technical field of packaging labeling, in particular to an intelligent multi-station labeling inkjet printer for silicone rubber product packaging. Background Art

[0002] Silicone rubber products are chemical polymer products with advantages such as high temperature resistance and UV resistance. After production, they need to be packaged in boxes. During transportation, uniform labels need to be affixed to the outer surface of the boxes. The uniform labels also need to be sprayed with corresponding codes to make the labels complete (the whole belongs to a complete labeling process) to facilitate anti-counterfeiting and traceability.

[0003] In order to achieve higher work efficiency in the prior art, a robotic arm is generally used for labeling and coding operations.

[0004] As in the prior art, a Chinese patent with publication number CN216270303U discloses a rotary scanning code and inkjet printer, which belongs to the field of vinyl silicone rubber packaging labeling technology. The key points of its technical solution include a manipulator base, a label manipulator is installed on the upper end surface of the manipulator base, a manipulator clamp is installed on the other end of the label manipulator, and an inkjet printer and a visual identifier are installed on the other end of the manipulator clamp. The visual identifier is located above the inkjet printer. Through the operation of the label manipulator, the visual identifier can identify the position of the cargo label to guide the label manipulator to accurately position it. The inkjet printer obtains the information of the cargo through the barcode identifier, and inkjet this information to the specified position of the label, thereby realizing the sequential inkjet coding of the entire stack of cargo. When the entire stack of cargo is inkjet-coded on one side, the rotary conveyor rotates the cargo 90° to inkjet the other side. In this way, the inkjet coding operation of the small labels on the four sides is completed, so that the entire inkjet coding process does not require human participation.

[0005] For another example in the prior art, a Chinese patent with publication number CN105501589A discloses a labeling robot, a labeling machine and a labeling method of the labeling machine, wherein the labeling robot includes a spider hand robot, a mounting bracket, a rotating bracket, a swing mechanism, a labeling mechanism and a controller, the mounting bracket is mounted on the lower end of the rotating shaft of the spider hand robot, the rotating bracket is rotatably mounted on the lower end of the mounting bracket, the swing mechanism is connected to the rotating bracket, the labeling mechanism is mounted on the rotating bracket, and the controller is electrically connected to the spider hand robot, the swing mechanism and the labeling mechanism. The labeling robot, the labeling machine and the labeling method of the labeling machine can label cartons of different specifications according to the specifications of incoming cartons, with high automation level and high production efficiency.

[0006] Combined with the above materials, it can be seen that when a robot arm is used for labeling in the prior art, after the package box is transported to the labeling position by a conveying mechanism, generally only one robot is used. However, after the package box is stacked by a palletizer, there will be four surfaces that need to be labeled and coded, so the surface needs to be rotated and switched during work (that is, one package box requires several robots to work repeatedly four times to complete), and the overall time of this process is relatively long, which makes the work efficiency not ideal. Summary of the invention

[0007] The object of the present invention is to provide an intelligent multi-station labeling inkjet printer for silicone rubber product packaging to solve the problem of unsatisfactory single-station working efficiency mentioned in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solution: an intelligent multi-station labeling inkjet printer for packaging silicone rubber products, comprising a support base corresponding to a palletizing mechanism, a horizontally arranged conveying frame fixedly installed above the support base, and conveying rollers arranged at equal intervals rotatably installed inside the conveying frame, and further comprising:

[0009] A carrying plate is provided above the conveying roller, and a matching loading tray is installed above the carrying plate, and packaging boxes containing silicone rubber products are neatly stacked in the middle of the upper surface of the loading tray, and label stickers are attached to the outside of the side of the packaging box;

[0010] The conveyor frame is fixedly installed with mounting frames on both sides of the front and rear, and a mechanical arm base is fixedly installed on the upper surface of the mounting frame, and a multi-axis mechanical arm is rotatably installed above the mechanical arm base, and a total of four multi-axis mechanical arms are provided, and the four multi-axis mechanical arms correspond to the four sides of the loading tray;

[0011] A positioning airbag for squeezing and positioning the object tray is fixedly installed on the outer surface of the mechanical arm base;

[0012] The top of the multi-axis robot arm is connected to an operation box with a square structure, and the front outer surface of the operation box is fixedly installed with a recognition camera for identifying the QR code on the label sticker, a positioning camera for locating the position of the label sticker, and an automatic inkjet printer for spraying code on the surface of the label sticker from top to bottom;

[0013] A cleaning nozzle for cleaning the identification camera and the positioning camera is fixedly installed on the outside of the side of the operation box.

[0014] Preferably, a fill light corresponding to the positioning camera is fixedly installed on the front outer surface of the operation box, and a detection camera with the same height as the automatic inkjet printer is set on the right outer surface of the operation box, and the detection camera is fixedly installed with the operation box through a mounting plate. The positioning camera is used to locate the position of the label sticker, and then the recognition camera recognizes the QR code on the surface of the label sticker to determine the specific content that needs to be coded. Then the automatic inkjet printer sprays the corresponding code on the surface of the label sticker. In this process, four robotic arms work simultaneously to improve overall work efficiency.

[0015] Preferably, the positioning camera, identification camera and automatic inkjet printer all communicate with the main controller via wired network signals, and the working order of the three is positioning camera-identification camera-automatic inkjet printer.

[0016] Preferably, the height of the positioning airbag is the same as the height of the cargo tray, and the side cross-section of the cargo tray is an "n"-shaped structure.

[0017] Preferably, a downwardly protruding limit slider is fixedly installed on the lower surface of the loading tray, and a front-rear sliding structure is formed between the limit slider and a linear slide groove opened on the upper surface of the loading plate. The limit slider on the lower surface slides accordingly in the linear slide groove opened on the upper surface of the loading plate, thereby adjusting the position of the loading tray to avoid position deviation due to vibration during transportation, which may cause the robot arm to collide or the center to be unstable and tip over.

[0018] Preferably, the positioning airbag is interconnected with the robot arm base, and the positioning airbag is made of an elastic rubber material that automatically expands and resets, and a conveying tube is fixedly installed on the side of the robot arm base.

[0019] Preferably, a three-way control valve is fixedly installed on the top of the delivery pipe, and a diverter pipe is fixedly installed on the upper outlet of the three-way control valve, and the diverter pipe is connected to the cleaning nozzle, and the airflow ejected from the cleaning nozzle is used to clean the surface of the identification camera and the positioning camera to avoid dust or debris adhering to the camera due to long-term use and affecting its identification and positioning effects, thereby ensuring the normal use of the device.

[0020] Preferably, a storage bin for storing air is provided inside the operation box, and a side outlet of the three-way control valve is connected to the storage bin, and the side outlet of the three-way control valve is configured as a one-way structure.

[0021] Preferably, a longitudinally arranged piston plate is installed inside the storage bin, and the piston plate and the storage bin are fitted and slidable, and a compression spring is fixedly installed between the piston plate and the inner wall of the storage bin.

[0022] Preferably, a dredging pipe is fixedly installed on the front side of the storage bin, and the dredging pipe is interconnected with the nozzle position of the automatic inkjet printer, and a solenoid valve is installed in the middle position of the dredging pipe. The solenoid valve communicates with the detection camera through a Bluetooth signal, and the piston plate moves under the squeezing action of the squeezing spring to discharge the air in the storage box into the nozzle of the automatic inkjet printer through the dredging pipe, and the nozzle of the automatic inkjet printer is dredged by air pressure.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: the intelligent multi-station labeling inkjet printer for silicone rubber product packaging adopts a new structural design, and its specific contents are as follows:

[0024] 1. The device is equipped with four multi-axis robotic arms. After the palletized packaging boxes are transported to the labeling and coding position by the conveyor rack, the four multi-axis robotic arms work simultaneously. First, the positioning camera is used to locate the position of the label sticker, and then the recognition camera recognizes the QR code on the surface of the label sticker to determine the specific content to be coded. Then the automatic inkjet printer sprays the corresponding code on the surface of the label sticker. In this process, the four robotic arms work simultaneously to improve the overall work efficiency, and the automatic inkjet printer is used to perform automatic coding operations through visual recognition, without the need for human participation;

[0025] Furthermore, during the process of conveying the packaging boxes by the conveyor frame, the positioning airbag on the side of the robot arm base is used to squeeze the loading tray. When the loading tray is squeezed, the limiting slider on its lower surface slides accordingly in the linear slide groove opened on the upper surface of the supporting plate, thereby adjusting the position of the loading tray to avoid position deviation due to vibration during the conveying process, which may cause the robot arm to collide or tip over due to unstable center.

[0026] 2. When the positioning airbag is squeezed, the air inside enters the base of the robot arm, and then the air is transported to the cleaning nozzle through the delivery pipe connected to the base of the robot arm and the shunt pipe connected to the delivery pipe. Then the air is ejected from the cleaning nozzle, and the surface of the identification camera and the positioning camera is cleaned by the airflow ejected from the cleaning nozzle to prevent dust or debris from adhering to the camera for a long time and affecting its identification and positioning effect, so as to ensure the normal use of the device;

[0027] Furthermore, part of the air in the delivery pipe is delivered to the storage bin inside the operating box through the three-way control valve, and the piston plate is pushed to move under the action of the increasing air pressure to compress the extrusion spring. When the detection camera detects that the automatic inkjet printer has not sprayed out the code (the nozzle of the automatic inkjet printer may be clogged), the solenoid valve is opened at this time, and the piston plate moves under the extrusion of the extrusion spring, and the air in the storage bin is discharged into the nozzle of the automatic inkjet printer through the dredging pipe, and the nozzle of the automatic inkjet printer is dredged by the action of air pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the positional relationship between the conveyor frame and the multi-axis robotic arm of the present invention;

[0030] Figure 3 This is a schematic diagram of the stacking structure of the packaging boxes of the present invention;

[0031] Figure 4 This is a schematic diagram of the structural relationship between the loading tray and the positioning airbag of the present invention;

[0032] Figure 5 This is a schematic diagram of the position relationship between the limit slider and the linear slideway of the present invention;

[0033] Figure 6 This is a schematic diagram of the connection relationship between the positioning airbag and the mechanical arm base of the present invention;

[0034] Figure 7 This is a schematic diagram of the structure of the operating box of the present invention;

[0035] Figure 8 For the present invention Figure 7 The enlarged structural diagram at A in the middle;

[0036] Fig. 9 This is a schematic diagram of the structure of the detection camera of the present invention;

[0037] Fig.10 It is a schematic diagram of the cross-sectional structure of the operating box of the present invention.

[0038] In the figure: 1. Support base; 2. Conveyor frame; 3. Conveyor roller; 4. Carrying plate; 5. Carrying tray; 6. Packing box; 7. Label sticker; 8. Mounting frame; 9. Robot arm base; 10. Multi-axis robot arm; 11. Operation box; 12. Identification camera; 13. Positioning camera; 14. Automatic inkjet printer; 15. Fill light; 16. Detection camera; 1601, Mounting plate; 17. Positioning airbag; 18. Limit slider; 19. Linear slide; 20. Conveyor pipe; 21. Three-way control valve; 22. Diverter pipe; 23. Cleaning nozzle; 24. Storage bin; 25. Piston plate; 26. Extrusion spring; 27. Clearing pipe; 28. Solenoid valve. DETAILED DESCRIPTION

[0039] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0040] Example 1: Please refer to Figure 1-Figure 5 In order to achieve the purpose of improving the overall work efficiency, the present embodiment provides the following technical solutions, which reduce the switching process by setting multiple stations to work simultaneously, and specifically discloses: a supporting base 1 corresponding to the stacking mechanism, a horizontally arranged conveying frame 2 is fixedly installed above the supporting base 1, and conveying rollers 3 arranged at equal intervals are rotatably installed on the inner side of the conveying frame 2, a carrying plate 4 is closely arranged above the conveying roller 3, and a matching loading tray 5 is installed above the carrying plate 4, and packaging boxes 6 containing silicone rubber products are neatly stacked in the middle position of the upper surface of the loading tray 5, and labels 7 are pasted on the outside of the side of the packaging box 6, mounting frames 8 are fixedly installed on the front and rear sides of the conveying frame 2, and a mechanical arm base 9 is fixedly installed on the upper surface of the mounting frame 8, and a multi-axis mechanical arm 10 is rotatably installed above the mechanical arm base 9, and a total of four multi-axis mechanical arms 10 are arranged, and the four multi-axis mechanical arms 10 correspond to the four sides of the loading tray 5. A positioning airbag 17 for squeezing and positioning the loading tray 5 is fixedly installed on the surface. The positioning camera 13, the identification camera 12 and the automatic inkjet printer 14 all communicate with the main controller through wired network signals. The working order of the three is positioning camera 13-identification camera 12-automatic inkjet printer 14. The height of the positioning airbag 17 is the same as the height of the loading tray 5, and the side cross-section of the loading tray 5 is an "n"-shaped structure. A downwardly protruding limit slider 18 is fixedly installed on the lower surface of the loading tray 5, and the limit slider 18 and the linear slide groove 19 opened on the upper surface of the carrying plate 4 form a front and rear sliding structure. The top of the multi-axis robotic arm 10 is connected to an operating box 11 with a square structure, and the front outer surface of the operating box 11 is fixedly installed with an identification camera 12 for identifying the two-dimensional code on the label sticker 7, a positioning camera 13 for locating the position of the label sticker 7 and an automatic inkjet printer 14 for spraying code on the surface of the label sticker 7 from top to bottom.

[0041] When using the device, firstly, the packaging boxes 6 containing silicone rubber products are neatly stacked on the loading tray 5 by using the palletizer, and then the label stickers 7 are pasted on the surface of the packaging boxes 6, and then the conveying rollers 3 inside the conveying frame 2 are opened, and the friction force of the conveying rollers 3 is used to drive the carrying plate 4 and the loading tray 5 to move to the right side to the coding position (in the process of conveying, the loading tray 5 is first contacted and squeezed with the positioning airbag 17 outside the robot arm base 9, and under the extrusion, the limiting slider 18 on the lower surface of the loading tray 5 slides in the linear slide groove 19 on the upper surface of the loading plate 4, thereby adjusting the position of the loading tray 5 to ensure that the loading tray 5 is in the right position). The multi-axis robot 10 is then turned on to drive the operating box 11 to move, and the positioning camera 13 is turned on at the same time. The machine vision system is used to locate the position of the label sticker 7 on the outside of the packaging box 6. After locating the label sticker 7, the recognition camera 12 is turned on. The recognition camera 12 is used to recognize the QR code on the label sticker 7, and the recognized data is transmitted to the automatic inkjet printer 14. At this time, the automatic inkjet printer 14 sprays the code on the specified position of the label sticker 7.

[0042] Example 2: Please refer to Figure 6-Figure 9 In order to solve the problem that the visual camera of the traditional device is attached with dirt and affects the recognition accuracy during use, this embodiment provides the following technical solutions, which use airflow to clean the surface of the camera to ensure its shooting clarity. Specifically, it discloses: a cleaning nozzle 23 for cleaning the recognition camera 12 and the positioning camera 13 is fixedly installed on the outside of the side of the operation box 11, and the positioning airbag 17 is connected to the robot arm base 9, and the positioning airbag 17 is set to an elastic rubber material that automatically expands and resets, and a delivery pipe 20 is fixedly installed on the side of the robot arm base 9, and a three-way control valve 21 is fixedly installed on the top of the delivery pipe 20, and a shunt pipe 22 is fixedly installed at the upper outlet of the three-way control valve 21, and the shunt pipe 22 and the cleaning nozzle 23 are connected to each other.

[0043] When the positioning airbag 17 is squeezed, the air inside enters the robot arm base 9, and is then transported to the position of the three-way control valve 21 through the delivery pipe 20 connected to the robot arm base 9. Part of the air is transported to the cleaning nozzle 23 through the diversion pipe 22 above the three-way control valve 21 and sprayed out. The airflow is used to blow and clean the surfaces of the positioning camera 13 and the identification camera 12 to prevent dust or debris from adhering to and affecting the use effect.

[0044] Example 3: Please refer to Fig.10In order to solve the problem of blockage of the inkjet printer during use, this embodiment provides the following technical solutions, which use air pressure to dredge the nozzle of the inkjet printer. Specifically, a fill light 15 corresponding to the positioning camera 13 is fixedly installed on the front outer surface of the operation box 11, and a detection camera 16 with the same height as the automatic inkjet printer 14 is arranged on the right outer surface of the operation box 11, and the detection camera 16 is fixedly installed with the operation box 11 through a mounting plate 1601, and a storage bin 24 for storing air is provided inside the operation box 11, and the side outlet of the three-way control valve 21 is connected to the The storage bins 24 are interconnected, and the side outlet of the three-way control valve 21 is set as a one-way structure. A longitudinally arranged piston plate 25 is installed inside the storage bin 24, and the piston plate 25 and the storage bin 24 fit and slide, and an extrusion spring 26 is fixedly installed between the piston plate 25 and the inner wall of the storage bin 24. A dredging pipe 27 is fixedly installed through the front side of the storage bin 24, and the dredging pipe 27 is interconnected with the nozzle position of the automatic inkjet printer 14, and a solenoid valve 28 is installed in the middle position of the dredging pipe 27, and the solenoid valve 28 communicates with the detection camera 16 through a Bluetooth signal.

[0045] After the automatic inkjet printer 14 sprays the code on the surface of the label sticker 7, the detection camera 16 is turned on to detect the integrity of the inkjet printer 14. When the detection camera 16 detects that the inkjet printer 14 is incomplete, it means that the nozzle of the automatic inkjet printer 14 may be blocked. At this time, the solenoid valve 28 is turned on, and the piston plate 25 is moved in the storage bin 24 under the squeezing action of the squeezing spring 26 (when the delivery pipe 20 delivers air, part of the air enters the storage bin 24 through the side outlet of the three-way control valve 21 for storage. As the air pressure increases, the piston plate 25 compresses the squeezing spring 26 to store energy), and the air in the storage bin 24 is delivered to the nozzle of the automatic inkjet printer 14 through the dredging pipe 27, so that the inside of the nozzle of the automatic inkjet printer 14 is dredged under the action of the gas pressure.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent multi-station labeling inkjet printer for packaging silicone rubber products, comprising a support base (1) corresponding to a stacking mechanism, a horizontally arranged conveying frame (2) fixedly installed above the support base (1), and conveying rollers (3) arranged at equal intervals rotatably installed inside the conveying frame (2), characterized in that: Also includes: A carrying plate (4) is disposed above the conveying roller (3), and a matching loading tray (5) is installed above the loading plate (4), and packaging boxes (6) containing silicone rubber products are neatly stacked in the middle of the upper surface of the loading tray (5), and a label sticker (7) is pasted on the outside of the side of the packaging box (6); The conveying frame (2) is fixedly mounted with mounting frames (8) on both sides of the front and rear, and a mechanical arm base (9) is fixedly mounted on the upper surface of the mounting frame (8), and a multi-axis mechanical arm (10) is rotatably mounted above the mechanical arm base (9), and a total of four multi-axis mechanical arms (10) are provided, and the four multi-axis mechanical arms (10) correspond to the four sides of the object loading tray (5); A positioning airbag (17) for squeezing and positioning the object tray (5) is fixedly mounted on the outer surface of the mechanical arm base (9); The top end of the multi-axis mechanical arm (10) is connected to an operation box (11) of a square structure, and a recognition camera (12) for identifying a two-dimensional code on a label sticker (7), a positioning camera (13) for locating the position of the label sticker (7), and an automatic inkjet printer (14) for spraying a code on the surface of the label sticker (7) are fixedly installed on the front outer surface of the operation box (11) from top to bottom. A cleaning nozzle (23) for cleaning the identification camera (12) and the positioning camera (13) is fixedly installed on the outside of the side of the operation box (11); The height of the positioning airbag (17) is the same as the height of the loading tray (5), and the side section of the loading tray (5) is in an "n"-shaped structure; A downwardly protruding limiting slider (18) is fixedly mounted on the lower surface of the loading tray (5), and a forward and backward sliding structure is formed between the limiting slider (18) and a linear slide groove (19) provided on the upper surface of the carrying plate (4); The positioning airbag (17) and the mechanical arm base (9) are interconnected, and the positioning airbag (17) is made of an elastic rubber material that can automatically expand and reset, and a conveying pipe (20) is fixedly installed and penetrated on the side of the mechanical arm base (9); A three-way control valve (21) is fixedly installed at the top of the delivery pipe (20), and a diverter pipe (22) is fixedly installed at the upper outlet of the three-way control valve (21), and the diverter pipe (22) is communicated with the cleaning nozzle (23); A storage bin (24) for storing air is provided inside the operation box (11), and a side outlet of the three-way control valve (21) and the storage bin (24) are in communication with each other, and the side outlet of the three-way control valve (21) is configured as a one-way structure; A longitudinally arranged piston plate (25) is installed inside the storage bin (24), and the piston plate (25) and the storage bin (24) are fitted and slidable, and a compression spring (26) is fixedly installed between the piston plate (25) and the inner wall of the storage bin (24); A dredging pipe (27) is fixedly installed through the front side of the storage bin (24), and the dredging pipe (27) is interconnected with the nozzle position of the automatic inkjet printer (14), and a solenoid valve (28) is installed in the middle position of the dredging pipe (27), and the solenoid valve (28) communicates with the detection camera (16) through a Bluetooth signal.

2. According to claim 1, the intelligent multi-station labeling inkjet printer for silicone rubber product packaging is characterized by: A fill light (15) corresponding to the positioning camera (13) is fixedly mounted on the front outer surface of the operation box (11), and a detection camera (16) having the same height as the automatic inkjet printer (14) is arranged on the right outer surface of the operation box (11), and the detection camera (16) is fixedly mounted on the operation box (11) via a mounting plate (1601).

3. According to claim 2, the intelligent multi-station labeling inkjet printer for silicone rubber product packaging is characterized by: The positioning camera (13), the identification camera (12) and the automatic inkjet printer (14) all communicate with the main controller via wired network signals, and the working order of the three is positioning camera (13) - identification camera (12) - automatic inkjet printer (14).

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