High-speed in-mold labeling manipulator and production line
By integrating the design and automating the control of the high-speed in-mold labeling robot, the problems of slow operating speed and poor adaptability of traditional equipment have been solved, realizing efficient and accurate in-mold labeling and picking operations, and meeting the needs of high-speed production.
Patent Information
- Application Number
- CN202511778625.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-02-10
AI Technical Summary
Traditional in-mold labeling equipment is slow and has poor adaptability, which cannot meet the needs of high-efficiency and flexible production.
A high-speed in-mold labeling robot was designed, which integrates a platform, lifting mechanism, translation mechanism, labeling mechanism and product retrieval mechanism. The robot achieves synchronous operation of in-mold labeling and product retrieval through a fixture control unit. Combined with bidirectional translation design on the Y and X axes, vacuum fixture and automatic control, the robot ensures the accuracy and coordination of the operation.
It achieves efficient in-mold labeling and integrated part removal operations, improving production efficiency, reducing product scrap rate, adapting to different equipment specifications, and reducing equipment space occupation and modification costs.
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Figure CN121493393A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of in-mold labeling technology, specifically to a high-speed in-mold labeling robot and production line. Background Technology
[0002] In industries such as daily chemicals and food packaging, the production of packaging containers (such as plastic bottles and injection molded parts) is rapidly developing towards high-speed, high-efficiency, and automated production. In-mold labeling (IMC) technology, which fuses the label to the container surface, offers advantages such as high-quality printing, strong adhesion, and wear resistance, and has become the mainstream production process.
[0003] However, traditional in-mold labeling equipment generally suffers from problems such as cumbersome operation processes, slow operating speed, and poor adaptability. As downstream enterprises increase their demand for production efficiency and flexible production, traditional equipment can no longer meet the requirements of large-scale production, and there is an urgent need for a high-speed, stable, and universal in-mold labeling solution. Summary of the Invention
[0004] This invention addresses the technical problems existing in the prior art by providing a high-speed in-mold labeling robot and production line.
[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A high-speed in-mold labeling robot includes a platform, a lifting mechanism, a translation mechanism, a labeling mechanism, a product retrieval mechanism, and a fixture control unit. The lifting mechanism is located on the side of the platform, and the translation mechanism is located on the top. The labeling mechanism, the product retrieval mechanism, and the fixture control unit are simultaneously mounted on the translation mechanism, and the fixture control unit drives the two to work together to achieve synchronous operation of in-mold labeling and product retrieval.
[0006] The beneficial effects of this invention are: 1. By integrating the labeling mechanism, picking mechanism, and fixture control unit into a translation mechanism, the labeling and picking operations can be completed simultaneously in a single in-mold entry and exit, avoiding the redundant secondary actions of labeling exit and picking entry in traditional equipment, greatly improving production efficiency and meeting the needs of high-cycle production. 2. The two mechanisms are driven by the same fixture control unit to ensure precise matching between labeling positioning and product retrieval timing, thereby reducing product scrap rate; 3. All mechanisms are integrated into the frame and translation mechanism, resulting in a compact overall size. Combined with the lifting mechanism, it can be adapted to molding machines of different heights, solving the problems of large space occupation and poor adaptability of traditional split-type equipment.
[0007] Furthermore, the bottom of the platform is equipped with leveling bolts. This allows for quick adjustment of the overall level of the robotic arm, ensuring the accuracy of its translation, labeling, and part-removal actions.
[0008] Furthermore, the lifting mechanism includes a fixed plate with a vertically oriented through-hole along its upper edge. A fixing bolt, matching the threaded hole on the side wall of the platform, passes through this through-hole. The lifting mechanism is simple in structure, low in cost, and securely locked after adjustment, preventing height deviation during operation and solving the problems of complex structure and cumbersome adjustment in traditional lifting mechanisms.
[0009] Furthermore, the translation mechanism includes a base, a Y-axis translation unit, and an X-axis translation unit. The base is slidably connected to the platform via the Y-axis translation unit and is drivenly connected to the labeling mechanism and the picking mechanism via the X-axis translation unit. The translation mechanism adopts a bidirectional translation design along the Y-axis and X-axis. The Y-axis is adjusted along the width direction of the platform, and the X-axis moves in and out of the mold along the length direction of the platform, enabling the robot to perform full-coverage operations in the horizontal plane and adapting to labeling and picking requirements of different specifications.
[0010] Furthermore, the Y-axis translation unit includes a sliding guide rail, a lead screw, and a slide block. The sliding guide rail is fixed to the platform along the width direction of the platform. The base is slidably mounted on the sliding guide rail via a slider, and the slide block is fixedly connected to the bottom of the base. The slide block and the lead screw form a sliding pair. The lead screw is arranged parallel to the sliding guide rail, and both ends of the lead screw are mounted on the platform via bearing seats. A rotating handwheel is fixed to the end of the lead screw. Using the transmission combination of the lead screw and the sliding guide rail, the translation process is smooth and without jamming, with high position adjustment accuracy.
[0011] Furthermore, the X-axis translation unit includes a translation motor and a walking body, both fixed on the base. A drive wheel is coaxially fixed to the output shaft of the translation motor. The walking body is arranged along the length of the frame, with rotating wheels rotatably mounted at both ends. A synchronous belt connects the two rotating wheels and the drive wheel to form a closed transmission loop. A linear guide rail is fixed to the upper surface of the walking body, and a mounting plate is slidably connected to the linear guide rail via a slider. The lower part of the mounting plate is fixedly connected to the synchronous belt via a synchronous belt clamp. A labeling mechanism and a part-retrieving mechanism are correspondingly connected to the end of the mounting plate. The closed transmission loop formed by the translation motor and synchronous belt enables the overall lateral translation of the robot, driving the labeling mechanism and the part-retrieving mechanism to synchronously enter and exit the mold cavity of the molding machine. The synchronous belt drive has a fast response, and combined with the guidance of the linear guide rail, it meets the requirements of high-speed entry and exit and precise positioning for in-mold labeling.
[0012] Furthermore, the mounting plate is L-shaped, with two parallel sliding tables fixed along the Y-axis on the vertical section and a clamp control unit fixed on the horizontal section. This design makes efficient use of space and reduces the translational load on the robotic arm.
[0013] Furthermore, the labeling mechanism and the product removal mechanism are symmetrical and independently controlled. Both include a vacuum fixture, a fixture mounting base, and a Y-axis drive motor. Two Y-axis drive motors are fixed to the mounting plate, and their output shafts are connected to the corresponding fixture mounting bases via synchronous belts. The two fixture mounting bases are slidably mounted on two slides on the mounting plate. The vacuum fixture uses vacuum suction cups, which are evenly distributed at the front end of the fixture mounting base and connected to a vacuum generator via air pipes. The two mechanisms are controlled by independent Y-axis drive motors and can move to the front and rear sides of the mold respectively, thereby achieving simultaneous in-mold labeling and product removal, shortening the cycle time.
[0014] Furthermore, the fixture control unit includes a PLC controller, solenoid valves, and motor drivers. The PLC controller is connected to the translation motor and the Y-axis drive motor via the motor drivers, and is connected to the vacuum generator's air circuit via the solenoid valves. The PLC controller controls the translation motor and the two Y-axis drive motors uniformly through the motor drivers, and controls the vacuum generator through the solenoid valves, achieving fully automated control of the entire process, reducing signal delay, and improving motion coordination.
[0015] A high-speed in-mold labeling production line includes a molding machine and the aforementioned high-speed in-mold labeling robot. The high-speed in-mold labeling robot enters and exits the mold cavity of the molding machine horizontally from the side. The robot's direct entry from the side of the molding machine reduces cycle time losses caused by other actions. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the high-speed in-mold labeling robot according to an embodiment of the present invention; Figure 2 , Figure 3 This is a schematic diagram of the translation mechanism according to an embodiment of the present invention; Figure 4 , Figure 5 This is a schematic diagram of the labeling mechanism and the picking mechanism according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the overall structure of the high-speed in-mold labeling production line according to an embodiment of the present invention.
[0017] The attached diagram lists the components represented by each number as follows: 1. Frame; 11. Anchor bolts; 2. Lifting mechanism; 21. Fixing plate; 22. Strip-shaped through hole; 3. Translation mechanism; 31. Base; 32. Sliding guide rail; 33. Lead screw; 34. Slide; 35. Rotating handwheel; 36. Translation motor; 361. Drive wheel; 37. Track; 371. Rotating wheel; 372. Linear guide rail; 38. Synchronous belt; 39. Mounting plate; 391. Slide table; 4. Labeling mechanism; 41. Labeling vacuum fixture; 42. Labeling fixture mounting base; 43. Labeling Y-axis drive motor; 5. Picking mechanism; 51. Picking vacuum fixture; 52. Picking fixture mounting base; 53. Picking Y-axis drive motor; 6. Fixture control unit; 61. Solenoid valve; 7. Vacuum generator; 8. Molding machine. Detailed Implementation
[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0019] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0020] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.
[0021] In the description of this application, spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., are used herein to describe the relationship between one element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "below" or "under" or "below" of other elements or features will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.
[0022] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use the invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the invention can be made without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the invention with unnecessary detail. Therefore, the invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.
[0023] Example like Figures 1 to 5 As shown, this embodiment provides a high-speed in-mold labeling robot, including a platform 1, a lifting mechanism 2, a translation mechanism 3, a labeling mechanism 4, a product retrieval mechanism 5, and a fixture control unit 6. The lifting mechanism 2 is located on the side of the platform 1, and the translation mechanism 3 is located on the top. The labeling mechanism 4, the product retrieval mechanism 5, and the fixture control unit 6 are simultaneously mounted on the translation mechanism 3, and the fixture control unit 6 drives the two to work together to achieve synchronous operation of in-mold labeling and product retrieval. This embodiment aims to achieve integrated operation of labeling and product retrieval in a single in-mold entry and exit by integrating the labeling mechanism 4, the product retrieval mechanism 5, and the fixture control unit 6 through the translation mechanism 3, avoiding the redundant secondary actions of labeling exit and product retrieval in traditional equipment, improving production efficiency, and meeting the needs of high-cycle production.
[0024] Specifically: The bottom of the platform 1 is equipped with leveling bolts 11. These bolts allow for quick adjustment of the overall level of the robotic arm, ensuring the accuracy of its translation, labeling, and picking actions (avoiding positioning deviations caused by equipment tilting); they also enhance the stability of the equipment on the workshop floor, reduce vibration interference during high-speed movement, and improve long-term operational reliability.
[0025] The lifting mechanism 2 includes a fixed plate 21 with a vertically oriented strip-shaped through hole 22 along its upper edge. A fixing bolt, matching the threaded hole on the side wall of the frame 1, passes through the strip-shaped through hole 22. The lifting mechanism 2, with its fixed plate 21, vertical strip-shaped through hole 22, and fixing bolts, allows for manual adjustment of the frame 1 height without complex drive components, quickly adapting to molding machines 8 with different clamping forces and mold center heights. Furthermore, its simple structure and low cost, along with its secure locking after adjustment, prevent height deviation during operation, solving the problems of complex structure and cumbersome adjustment associated with traditional lifting mechanisms 2.
[0026] The translation mechanism 3 includes a base 31, a Y-axis translation unit, and an X-axis translation unit. The base 31 is slidably connected to the platform 1 via the Y-axis translation unit and is drivenly connected to the labeling mechanism 4 and the picking mechanism 5 via the X-axis translation unit. The translation mechanism 3 adopts a bidirectional translation design along the Y-axis and X-axis. The Y-axis is adjusted along the width direction of the platform 1, and the X-axis moves in and out of the mold along the length direction of the platform 1, realizing full-coverage operation of the robot in the horizontal plane and adapting to the labeling and picking requirements of different specifications. The base 31, as an intermediate load-bearing component, integrates the bidirectional translation unit into one unit, with a clear transmission link and high motion accuracy, solving the problems of limited working range and insufficient positioning accuracy of traditional single-axis translation mechanisms 3. In this embodiment, the Y-axis translation unit includes a sliding guide rail 32, a lead screw 33, and a slide block 34. The sliding guide rail 32 is fixed on the frame 1 along the width direction of the frame 1. The base 31 is slidably mounted on the sliding guide rail 32 via a slider. The bottom of the base 31 is fixedly connected to the slide block 34. The slide block 34 and the lead screw 33 form a sliding pair. The lead screw 33 is arranged parallel to the sliding guide rail 32. Both ends of the lead screw 33 are mounted on the frame 1 via bearing seats. A rotating handwheel 35 is fixedly provided at the end of the lead screw 33. The Y-axis translation unit adopts a transmission combination of lead screw 33 and sliding guide rail 32. The lead screw 33 transmission has self-locking property, and after adjustment, the base 31 can maintain a stable position without the need for an additional locking mechanism. With the guiding effect of the sliding guide rail 32, the translation process is smooth and without jamming, and the position adjustment accuracy is high. At the same time, it can be manually adjusted by turning the handwheel 35, which is convenient to operate and suitable for small-range, high-precision position calibration (such as adapting to molds of different widths in molding machines 8), solving the problems of low positioning accuracy and easy drift of traditional pneumatic Y-axis translation mechanism 3.
[0027] In this embodiment, the X-axis translation unit includes a translation motor 36 and a walking body 37, both of which are fixed on the base 31. The output shaft of the translation motor 36 is coaxially fixed with a drive wheel 361. The walking body 37 is arranged along the length of the frame 1. Rotating wheels 371 are rotatably installed at both ends of the walking body 37. The two rotating wheels 371 and the drive wheel 361 are connected to each other by a synchronous belt 38 to form a closed transmission circuit. A linear guide rail 372 is fixed on the upper surface of the walking body 37. A mounting plate 39 is slidably connected to the linear guide rail 372 by a slider. The lower part of the mounting plate 39 is fixedly connected to the synchronous belt 38 by a synchronous belt clamp. A labeling mechanism 4 and a picking mechanism 5 are correspondingly connected to the end of the mounting plate 39. The X-axis translation unit achieves the overall lateral translation of the robot arm through a closed transmission circuit formed by the translation motor 36 and the synchronous belt 38, driving the labeling mechanism 4 and the picking mechanism 5 to synchronously enter and exit the mold cavity of the molding machine 8. At the same time, the synchronous belt 38 has a fast transmission response and, in conjunction with the guidance of the linear guide rail 372, meets the requirements of high-speed entry and exit and precise positioning for in-mold labeling. Moreover, the guide body 37 is set along the length of the frame 1 to provide stable support for the synchronous belt 38 and the linear guide rail 372. The rotating wheel 371 adopts a rotating installation method to reduce transmission resistance and wear. In addition, the mounting plate 39 is fixed to the synchronous belt 38 through the synchronous belt clamp, which has high transmission efficiency and no slippage, and can ensure the consistency of synchronous translation of the labeling mechanism 4 and the picking mechanism 5.
[0028] In this embodiment, the mounting plate 39 is L-shaped, with two parallel sliding tables 391 fixed along the Y-axis on the vertical section and a clamp control unit 6 fixed on the horizontal section. The two parallel sliding tables 391 on the vertical section of the L-shaped mounting plate 39 provide independent sliding mounting bases for the labeling mechanism 4 and the picking mechanism 5, enabling independent adjustment and coordinated action of the two (such as adjusting the distance between the two mechanisms according to the mold space). The clamp control unit 6 is fixed on the horizontal section, shortening the control signal transmission distance, reducing signal interference, and improving the action response speed. The overall structure is compact, making reasonable use of space, reducing the translation load of the robot arm, and further improving the stability during high-speed movement.
[0029] The labeling mechanism 4 and the picking mechanism 5 are symmetrical and independently controlled. Both include vacuum clamps (labeling vacuum clamp 41, picking vacuum clamp 51), clamp mounting seats (labeling clamp mounting seat 42, picking clamp mounting seat 52), and Y-axis drive motors (labeling Y-axis drive motor 43, picking Y-axis drive motor 53). The two Y-axis drive motors are fixed on the mounting plate 39, and their output shafts are respectively connected to the corresponding clamp mounting seats through synchronous belts 38 (the principle is the same as that of the X-axis translation unit). The two clamp mounting seats are slidably mounted on the two slides 391 of the mounting plate. The vacuum clamps are vacuum suction cups, which are evenly distributed at the front end of the clamp mounting seats and connected to the vacuum generator 7 through air pipes. The two mechanisms are controlled by independent Y-axis drive motors, which can move to the front and rear sides of the mold respectively, thus realizing simultaneous in-mold labeling and product removal, shortening the cycle. At the same time, the movement stroke and speed can be independently adjusted according to the label size and product shape to adapt to different labeling and removal needs (such as labeling small labels and removing heavy products). Moreover, the vacuum suction cups are evenly distributed, and the suction force is balanced, avoiding label wrinkles and product deformation. The vacuum suction cups are connected to the vacuum generator 7 through air pipes, and the suction and release actions are fast. With the control of the fixture control unit 6, the suction success rate is high, solving the problems of traditional mechanical fixtures that easily damage the product surface and have poor adaptability.
[0030] The fixture control unit 6 includes a PLC controller (not shown in the figure), a solenoid valve 61, and a motor driver (not shown in the figure). The PLC controller is connected to the translation motor 36 and the two Y-axis drive motors via the motor driver, and is connected to the vacuum generator 7 via the solenoid valve 61. The PLC controller controls the translation motor 36 and the two Y-axis drive motors in a unified manner through the motor driver, and controls the vacuum generator 7 through the solenoid valve, realizing fully automated control, reducing signal delay, and improving action coordination. The integrated control design reduces external wiring and lowers the probability of line failure. Each component has independent functions, and faults can be quickly located (e.g., motor faults and vacuum faults are reported separately), resulting in high maintenance efficiency. No complex programming is required; action parameters can be directly modified through the PLC to adapt to the production of different products, making operation convenient.
[0031] like Figure 6As shown, this embodiment also provides a high-speed in-mold labeling production line, including a molding machine 8 and a high-speed in-mold labeling robot as described above. The high-speed in-mold labeling robot enters and exits the mold cavity of the molding machine 8 horizontally from the side. The molding machine 8 can adopt existing mature technologies, and the mechanical structure of the high-speed in-mold labeling machine is as described in the above embodiment, so its specific structure will not be repeated here. The high-speed in-mold labeling robot works in conjunction with the molding machine 8, entering and exiting the mold cavity horizontally from the side, and simultaneously completing labeling and picking up the product. There is no need to configure an additional independent picking device, which simplifies the production line layout, reduces equipment investment costs, and the side entry and exit design does not need to avoid the opening and closing stroke of the molding machine 8, further shortening the operation cycle and improving the overall production line capacity. Moreover, the robot can be adapted to different models of molding machines 8, making the production line modification difficult. The robot and the molding machine 8 are controlled collaboratively, and labeling and product molding are completed simultaneously. The label is firmly fused to the product surface, and the picking action is smooth, which can avoid problems such as peeling and falling off of the label later, while reducing damage to the product after demolding and improving the finished product qualification rate.
[0032] It should be noted that the aforementioned PLC controller, solenoid valve, motor driver and other electronic devices can all adopt mature technologies that have been developed, such as the SIEMENS S7-300 PLC controller, the 4V210-08 solenoid valve, and the RKD514H-A motor driver. Therefore, their specific structure and connection method can be implemented with reference to existing technologies, and will not be described in detail here.
[0033] The working principle of the above structure: I. Equipment Debugging and Initialization Preparation Phase 1. Adjust the overall level of the robot arm by adjusting the leveling bolts 11 at the bottom of the frame 1 to avoid movement deviation; loosen the fixing bolts of the lifting mechanism 2, move the frame 1 up and down along the strip-shaped through hole 22 of the fixing plate 21, and after adapting to the mold center height of the molding machine 8, tighten the fixing bolts. 2. Rotate the handwheel 35 of the Y-axis translation unit to drive the lead screw 33 to rotate, which will cause the base 31 to move along the sliding guide rail 32 along the width direction of the frame 1, and align the labeling mechanism 4 and the picking mechanism 5 with the feeding and discharging station of the mold of the molding machine 8 to complete the horizontal position calibration. 3. The PLC controller of the fixture control unit presets the action parameters, including: the entry and exit speed of the X-axis translation unit, the Y-axis movement stroke of the labeling and picking mechanisms, the adsorption pressure of the vacuum suction cup, and the action sequence interval (such as the synchronous delay time of label release and picking adsorption).
[0034] II. Molding Machine Collaboration and In-Mold Entry Stage When the molding machine 8 completes the product injection molding, the PLC controller receives the start signal and starts the translation motor 36 of the X-axis translation unit through the motor driver. The drive wheel 361 drives the mounting plate 39 to move into the mold along the linear guide rail 372 through the synchronous belt 38. The labeling mechanism 4 and the part picking mechanism 5 enter the designated position of the mold cavity synchronously with the mounting plate 39.
[0035] III. In-mold synchronous operation stage 1. The PLC controller starts the labeling Y-axis drive motor 43 of the labeling mechanism 4 through an independent control channel, which drives the labeling fixture mounting base 42 to move along the slide table 391 to the label bonding position inside the mold. At the same time, it controls the solenoid valve 61 to turn on the vacuum generator 7, and the labeling vacuum fixture 41 generates negative pressure to adsorb the label. After the label is bonded to the product forming surface inside the mold, the solenoid valve 61 is de-energized, the vacuum is released, and the labeling Y-axis drive motor 43 drives the labeling fixture mounting base 42 to reset. 2. While the labeling action is being performed, the PLC controller starts the Y-axis drive motor 53 of the picking mechanism 5, which drives the picking fixture mounting base 52 to move along another slide 391 toward the formed product. The picking vacuum fixture 51 generates negative pressure through the vacuum generator 7 to adsorb the product. 3. After the labeling and picking actions are completed, the PLC controller controls the translation motor 36 of the X-axis translation unit to rotate in the opposite direction. The mounting plate 39 drives the labeling mechanism 4 and the picking mechanism 5 to exit the mold cavity simultaneously and return to the initial position.
[0036] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of the invention is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.
Claims
1. A high-speed in-mold labeling robot, characterized in that, It includes a frame, a lifting mechanism, a translation mechanism, a labeling mechanism, a product retrieval mechanism, and a fixture control unit. The frame is equipped with a lifting mechanism on its side and a translation mechanism on its top. The translation mechanism is equipped with the labeling mechanism, the product retrieval mechanism, and the fixture control unit. The fixture control unit drives the two to work together to achieve the synchronous operation of in-mold labeling and product retrieval.
2. The high-speed in-mold labeling robot according to claim 1, characterized in that, The bottom of the platform is equipped with leveling bolts.
3. The high-speed in-mold labeling robot according to claim 1, characterized in that, The lifting mechanism includes a fixed plate with a vertically oriented through hole along its upper edge. A fixing bolt that matches the fixing thread hole on the side wall of the platform passes through the through hole.
4. The high-speed in-mold labeling robot according to claim 1, characterized in that, The translation mechanism includes a base, a Y-axis translation unit, and an X-axis translation unit. The base is slidably connected to the frame through the Y-axis translation unit and is drivenly connected to the labeling mechanism and the picking mechanism through the X-axis translation unit.
5. A high-speed in-mold labeling robot according to claim 4, characterized in that, The Y-axis translation unit includes a sliding guide rail, a lead screw, and a slide block. The sliding guide rail is fixed on the frame along the width direction of the frame. The base is slidably mounted on the sliding guide rail by a slider. The slide block is fixedly connected to the bottom of the base. The slide block and the lead screw form a sliding pair. The lead screw is set parallel to the sliding guide rail. Both ends of the lead screw are mounted on the frame through bearing seats. A rotating handwheel is fixed at the end of the lead screw.
6. A high-speed in-mold labeling robot according to claim 4, characterized in that, The X-axis translation unit includes a translation motor and a traveling body, both of which are fixed on the base. The output shaft of the translation motor is coaxially fixed with a drive wheel. The traveling body is arranged along the length of the frame, and rotating wheels are rotatably installed at both ends of the traveling body. The two rotating wheels and the drive wheel are connected by a synchronous belt to form a closed transmission circuit. A linear guide rail is fixed on the upper surface of the traveling body. A mounting plate is slidably connected to the linear guide rail by a slider. The lower part of the mounting plate is fixedly connected to the synchronous belt by a synchronous belt clamp. A labeling mechanism and a picking mechanism are correspondingly connected to the end of the mounting plate.
7. A high-speed in-mold labeling robot according to claim 6, characterized in that, The mounting plate is L-shaped, with two parallel sliding tables fixed on the vertical section along the Y-axis, and a clamp control unit fixed on the horizontal section.
8. A high-speed in-mold labeling robot according to claim 7, characterized in that, The labeling mechanism and the picking mechanism are symmetrical and independently controlled. Both include a vacuum clamp, a clamp mounting base, and a Y-axis drive motor. The two Y-axis drive motors are fixed on the mounting plate, and their output shafts are connected to the corresponding clamp mounting bases via synchronous belts. The two clamp mounting bases are slidably mounted on two slides on the mounting plate. The vacuum clamp uses vacuum suction cups, which are evenly distributed at the front end of the clamp mounting base and connected to the vacuum generator via air pipes.
9. A high-speed in-mold labeling robot according to claim 8, characterized in that, The fixture control unit includes a PLC controller, a solenoid valve, and a motor driver. The PLC controller is connected to the translation motor and the Y-axis drive motor via the motor driver, and is connected to the vacuum generator air circuit via the solenoid valve.
10. A high-speed in-mold labeling production line, characterized in that, The invention includes a molding machine and a high-speed in-mold labeling robot as described in any one of claims 1-9, wherein the high-speed in-mold labeling robot enters and exits the mold cavity of the molding machine horizontally from the side.