Automatic labeling equipment for expansion valve
By designing an automated labeling device for expansion valves, and utilizing components such as a turntable, positioning seat, positioning pin, and negative pressure head, the problems of misalignment and misalignment of the metal shell when affixing QR codes to expansion valves were solved, achieving high-precision, low-error, fully automated production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- MINGWEIKE ELECTRONICS (SUZHOU) CO LTD
- Filing Date
- 2026-02-03
- Publication Date
- 2026-05-01
AI Technical Summary
The expansion valve experienced a high rework rate due to misalignment caused by equipment errors when affixing QR codes, and there was also a problem with the iron shell shifting under pressure.
Design an automated labeling device for expansion valves. The device uses a turntable and positioning seat in combination. It achieves fast and accurate positioning through positioning pins and clearance grooves. Combined with the dual positioning of pressure plate and pin, it ensures labeling accuracy and stability. The device also uses a negative pressure head to accurately apply the label. The device integrates feeding and unloading mechanisms to achieve fully automated operation.
This improved the labeling accuracy and production efficiency of expansion valves, reduced rework rates, ensured labeling quality and equipment reliability, and enabled fully automated production.
Smart Images
Figure CN121947918A_ABST
Abstract
Description
An automated labeling device for expansion valves Technical Field
[0001] This application relates to the field of intelligent manufacturing equipment technology, and in particular to an automated labeling device for expansion valves. Background Technology
[0002] An expansion valve is a key component in a refrigeration system, consisting of an electromagnetic coil, a plastic coating surrounding the coil, and a U-shaped metal casing mounted on the plastic coating. Additionally, the expansion valve requires a paper QR code affixed to the metal casing for product traceability. When using machines to label the assembled plastic coating and metal casing, operational errors can lead to significant misalignment between the metal casing and the plastic coating, failing to meet product requirements and necessitating rework. Furthermore, when affixing the QR code, the metal casing may shift under pressure, reducing alignment and increasing the rework rate. Therefore, the structure of this device requires further improvement. Summary of the Invention
[0003] In order to ensure that the alignment of the expansion valve meets the requirements and to achieve automated labeling of the expansion valve, this application provides an automated labeling device for expansion valves.
[0004] This application provides an automated labeling device for expansion valves, which adopts the following technical solution: An automated labeling device for expansion valves includes a workbench, a first mounting base on the workbench, a turntable rotatably connected to the first mounting base, a plurality of positioning seats mounted on the upper surface of the turntable, the positioning seats being circumferentially distributed on the turntable, a labeling mechanism on the workbench, the labeling mechanism being located on one side of the turntable, a mounting frame on the first mounting base, the mounting frame being located in the middle of the turntable, a clearance opening on the turntable corresponding to the mounting frame, and a positioning mechanism on the side of the mounting frame near the labeling mechanism.
[0005] By adopting the above technical solution, the rotation of the turntable allows multiple positioning seats to be used in a cycle, enabling continuous operation and improving production efficiency. The circumferentially distributed positioning seats keep the distance between them and the work point consistent, ensuring that the labeling accuracy of each expansion valve is uniform and stable. The labeling mechanism and the positioning mechanism work together. The labeling mechanism is responsible for labeling, while the positioning mechanism ensures that the workpiece is fixed in position during labeling. The clearance provides space for the mounting frame, avoiding interference from the mounting frame with the turntable rotation, thus improving overall coordination and labeling quality.
[0006] Optionally, the positioning seat is provided with a positioning pin, the diameter of which is smaller than the inner diameter of the expansion valve housing.
[0007] By adopting the above technical solution, the positioning pin can be easily inserted into the inner hole of the expansion valve shell, achieving rapid and accurate positioning, and improving positioning accuracy and operating efficiency.
[0008] Optionally, the positioning seat is further provided with a relief groove, which is used to cooperate with the protrusion of the expansion valve housing.
[0009] By adopting the above technical solution, the clearance groove and the protrusion of the expansion valve shell cooperate to ensure that the workpiece is stably placed on the positioning seat. The clearance groove and the positioning pin simultaneously limit the expansion valve, preventing the expansion valve from shifting or rotating during rotation or labeling. This ensures that the labeling position of the expansion valve is set away from the center of the turntable, thereby enhancing the reliability of equipment operation.
[0010] Optionally, the positioning mechanism includes a second mounting base, a second driving member, and a pressure plate. The second mounting base is fixed on the mounting frame, the second driving member is mounted on the second mounting base, and the pressure plate is fixed to the output end of the second driving member. The second driving member is used to drive the vertical translation of the pressure plate.
[0011] By adopting the above technical solution, the second driving component drives the pressure plate to press down, fixing the expansion valve in the working position, ensuring stability during the labeling process, improving labeling accuracy, preventing the iron shell from shifting under pressure during the labeling process, and reducing the rework rate.
[0012] Optionally, the bottom of the pressure plate is provided with a pin, the lower end of which is tapered, and the pin is positioned opposite to the positioning pin.
[0013] By adopting the above technical solution, the tapered pin can be easily inserted into the hole of the expansion valve and cooperate with the positioning pin to achieve dual positioning from top to bottom, further improving positioning accuracy and reliability. When the pin is inserted, the coil hole of the expansion valve is finely aligned with the iron shell hole, improving production quality, ensuring that the alignment meets the requirements, and reducing labeling errors.
[0014] Optionally, the labeling mechanism includes a labeling support, which is disposed on a workbench. A third mounting seat is installed on the side wall of the labeling support. The third mounting seat is slidably connected to the labeling support. A fifth driving member is fixedly provided on the labeling support. The third mounting seat is fixed to the output end of the fifth driving member. The fifth driving member is used to drive the third mounting seat to move vertically.
[0015] By adopting the above technical solution, the vertical position of the third mounting base is controlled by the fifth driving component, and the labeling point or label picking point of the labeling mechanism is adjusted, so that the labeling mechanism can label or pick up the label at the required height, thereby improving the accuracy and efficiency of labeling and reducing the product defect rate.
[0016] Optionally, the third mounting base is provided with a rotating base and a third driving member. The rotating base is rotatably connected to the third mounting base, the third driving member is fixed to the third mounting base, and the rotating base is fixed to the output end of the third driving member. The third driving member is used to drive the rotating base to rotate along its central axis.
[0017] By adopting the above technical solution, the third driving component drives the rotating base to rotate, which in turn drives the fixed component to rotate, enabling the labeling mechanism to adsorb the label at one angle and stick it at another angle.
[0018] Optionally, a fourth mounting base is detachably connected to the rotary table, and a fourth driving member is fixed to one side of the fourth mounting base. A negative pressure head is fixed to the output end of the fourth driving member, and the fourth driving member is used to drive the negative pressure head to move closer to or away from the rotary table.
[0019] By adopting the above technical solution, the fourth driving component controls the movement of the negative pressure head, enabling the labeling head to approach and leave the workpiece. The negative pressure head adsorbs the label through negative pressure, ensuring accurate labeling and improving labeling efficiency.
[0020] Optionally, the fourth mounting base is further provided with a negative pressure pump, and the negative pressure head is connected to the negative pressure pump pipeline.
[0021] By adopting the above technical solution, the negative pressure pump provides a stable negative pressure source, ensuring that the negative pressure head reliably adsorbs the label, preventing the label from falling off or shifting, and improving the labeling quality and stability.
[0022] Optionally, the workbench is also equipped with a feeding mechanism and a picking mechanism.
[0023] By adopting the above technical solution, the feeding mechanism automatically delivers the expansion valve to the positioning seat, and the picking mechanism automatically removes the labeled workpiece, realizing fully automated operation, reducing manual intervention, and improving production efficiency and automation level.
[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. When the pin is inserted, the coil hole of the expansion valve and the iron shell hole are finely aligned, improving production quality, ensuring that the alignment meets the requirements, and reducing labeling errors; 2. The iron shell is initially limited by the positioning pin to prevent it from being thrown out when the turntable rotates; 3. The negative pressure head adsorbs the label through negative pressure, ensuring accurate labeling and improving labeling efficiency. Attached Figure Description
[0025] Figure 1 is a schematic diagram of the overall structure in an embodiment of this application.
[0026] Figure 2 is a schematic diagram of the turntable and its connection structure in an embodiment of this application.
[0027] Figure 3 is a schematic diagram of the turntable and labeling mechanism and their connection structure in an embodiment of this application.
[0028] Figure 4 is a schematic diagram of the overall structure of the expansion valve in an embodiment of this application.
[0029] Explanation of reference numerals in the attached drawings: 10, workbench; 20, first mounting base; 21, turntable; 22, positioning base; 23, positioning pin; 24, clearance groove; 25, clearance opening; 31, mounting bracket; 32, second mounting base; 33, pressure plate; 34, pin; 41, labeling support; 42, third mounting base; 43, turntable; 44, fourth mounting base; 45, guide bar; 46, fourth driving component; 47, negative pressure head; 51, first conveying assembly; 52, first robotic arm; 61, second conveying assembly; 62, second robotic arm; 63, conveyor belt. Detailed Implementation
[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0031] This application discloses an automated labeling device for expansion valves.
[0032] Referring to Figures 1 and 2, an automated labeling device for expansion valves includes a workbench 10, on which a first mounting base 20 is provided. A turntable 21 is rotatably connected to the first mounting base 20. A first driving component is fixed inside the first mounting base 20. The output end of the first driving component is fixed to the turntable 21. The first driving component is used to drive the turntable 21 to rotate. Several positioning seats 22 are installed on the upper surface of the turntable 21. The rotation of the turntable 21 allows multiple positioning seats 22 to be used in a cyclical manner, realizing continuous operation and improving production efficiency. In this embodiment, four positioning seats 22 are provided. The positioning seats 22 are evenly distributed circumferentially on the turntable 21, so that the distance between the positioning seats 22 and the work point remains consistent, ensuring that the labeling accuracy of each expansion valve is uniform and stable.
[0033] Referring to Figures 1 and 3, a labeling mechanism is provided on the worktable 10, located on one side of the turntable 21. A mounting bracket 31 is provided on the first mounting base 20, located in the middle of the turntable 21. The turntable 21 has a clearance opening 25 corresponding to the mounting bracket 31, through which the mounting bracket 31 passes, making the upper surface of the mounting bracket 31 higher than the upper surface of the turntable 21. A positioning mechanism is fixed on the upper surface of the mounting bracket 31, located on the side of the mounting bracket 31 close to the labeling mechanism. The positioning mechanism is used to further fix and limit the relative position of the expansion valve's iron shell and plastic coating. The labeling mechanism and the positioning mechanism work together. The labeling mechanism is responsible for labeling, and the positioning mechanism ensures that the workpiece is fixed in position during labeling, preventing the pressure on the iron shell during labeling from causing relative slippage between the iron shell and the electromagnetic coil, thus ensuring the product's centering. The clearance opening 25 provides space for the mounting bracket 31, minimizing interference between the mounting bracket 31 and the rotation of the turntable 21, improving overall coordination and labeling quality, and reducing rework rate.
[0034] Referring to Figure 2, the positioning seat 22 is provided with a positioning pin 23. The diameter of the positioning pin 23 is smaller than the inner diameter of the expansion valve housing. The upper end of the positioning pin 23 is inwardly tapered, so that the upper diameter of the positioning pin 23 is slightly smaller than the lower diameter. This allows the positioning pin 23 to be easily inserted into the inner hole of the expansion valve housing, achieving fast and accurate positioning and improving positioning accuracy and operating efficiency.
[0035] The positioning seat 22 is also provided with a relief groove 24, which is used to cooperate with the protrusion of the expansion valve shell to make the workpiece stably placed on the positioning seat 22. The relief groove 24 and the positioning pin 23 simultaneously limit the expansion valve, fix the position and orientation of the expansion valve on the positioning seat 22, prevent the expansion valve from shifting or rotating during rotation or labeling, ensure that the labeling part of the expansion valve is far away from the center of the turntable 21, and enhance the reliability of equipment operation.
[0036] Referring to Figure 3, the positioning mechanism includes a second mounting base 32, a second driving member, and a pressure plate 33. The second mounting base 32 is fixed on the mounting frame 31, and the pressure plate 33 is slidably connected to the second mounting base 32. The second driving member is mounted on the second mounting base 32, and the pressure plate 33 is fixed to the output end of the second driving member. The second driving member is used to drive the vertical translation of the pressure plate 33, so that the pressure plate 33 presses against or moves away from the expansion valve. The second driving member drives the pressure plate 33 to press down, so that the pressure plate 33 abuts against the expansion valve, fixing the expansion valve in the working position, ensuring the stability of the expansion valve during the labeling process, reducing the pressure displacement of the iron shell during the labeling process, and reducing the rework rate.
[0037] The bottom of the pressure plate 33 is provided with a pin 34. The lower end of the pin 34 is tapered. The tapered pin 34 is easy to insert into the hole of the expansion valve. The pin 34 is set opposite to the positioning pin 23. The pin 34 and the positioning pin 23 cooperate to achieve double positioning from top to bottom, which further improves the positioning accuracy and reliability. When the pin 34 is inserted, the coil hole of the expansion valve is finely aligned with the iron shell hole to improve production quality, make the alignment as close as possible to the requirements, and reduce the labeling error.
[0038] Referring to Figures 1 to 3, the labeling mechanism includes a labeling support 41, which is mounted on the workbench 10. A third mounting seat 42 is installed on the side wall of the labeling support 41. The third mounting seat 42 is slidably connected to the labeling support 41. A fifth driving member is fixedly mounted on the labeling support 41. The third mounting seat 42 is fixed to the output end of the fifth driving member. The fifth driving member is used to drive the third mounting seat 42 to move vertically. By driving and controlling the vertical position of the third mounting seat 42 through the fifth driving member, the labeling point or label picking point of the labeling mechanism is adjusted, so that the labeling mechanism can label or pick up the label at the required height, thereby improving the accuracy and efficiency of labeling and reducing the product defect rate.
[0039] The third mounting base 42 is provided with a rotating base 43 and a third driving component. The rotating base 43 is rotatably connected to the third mounting base 42, and the third driving component is fixed to the third mounting base 42. The rotating base 43 is fixed to the output end of the third driving component. The third driving component is used to drive the rotating base 43 to rotate along its central axis, so that the rotating base 43 drives the component fixed to it to rotate, so that the labeling mechanism can adsorb the label at one angle and stick it at another angle, realize automated label picking and labeling, reduce manual operation, and improve production efficiency.
[0040] A fourth mounting base 44 is detachably connected to the turntable 43. A fourth driving member 46 is fixed to one side of the fourth mounting base 44. A negative pressure head 47 is fixed to the output end of the fourth driving member 46. The fourth driving member 46 is used to drive the negative pressure head 47 to move closer to or away from the turntable 21. A guide bar 45 is provided on the side wall of the fourth mounting base 44. The negative pressure head 47 is slidably connected to the guide bar 45. The extension direction of the guide bar 45 is perpendicular to the rotation axis of the turntable 43. When the turntable 43 rotates to the point where the guide bar 45 faces the label conveying mechanism, the fourth driving member 46 drives the negative pressure head 47. The negative pressure head 47 moves along the guide bar 45, moving closer to or away from the label conveying mechanism, so that the label is attracted by the negative pressure head 47 to complete the label picking. Then, the third driving component drives the turntable 43 to rotate, so that the guide bar 45 faces the turntable 21. At this time, the iron shell of the expansion valve on the turntable 21 is directly opposite the negative pressure head 47. The fourth driving component 46 drives the negative pressure head 47 to move along the guide bar 45, moving closer to or away from the turntable 21, so that the label is pasted onto the expansion valve to complete the labeling, thereby improving the level of automation and labeling efficiency.
[0041] The fourth mounting base 44 is also equipped with a negative pressure pump. The negative pressure head 47 is connected to the negative pressure pump pipeline. The negative pressure pump provides a stable negative pressure source for the negative pressure head 47 to adsorb the label, ensuring that the negative pressure head 47 can reliably adsorb the label, avoiding the label from falling off or shifting, and improving the labeling quality and stability.
[0042] Referring to Figures 1 to 4, a feeding mechanism is provided on the workbench 10. The feeding mechanism includes a first conveying component 51 and a first robotic arm 52. The first conveying component 51 is installed on the workbench 10, and the first robotic arm 52 is fixedly connected to the conveying surface of the first conveying component 51. The first conveying component 51 reciprocates to the first robotic arm 52, and the first robotic arm 52 clamps the assembled expansion valve. The first conveying component 51 transports the expansion valve to be labeled to the positioning seat 22. The first robotic arm 52 places the expansion valve on the positioning seat 22, and makes the inner hole and protrusion of the expansion valve cooperate with the positioning pin 23 and the relief groove 24 on the positioning seat 22, respectively. This realizes that the feeding mechanism automatically transports the expansion valve to the positioning seat 22, realizing fully automated operation, reducing manual intervention, and improving production efficiency and automation level.
[0043] The workbench 10 is equipped with a material handling mechanism, which includes a second conveying component 61 and a second robotic arm 62. The second conveying component 61 is installed on the workbench 10, and the second robotic arm 62 is fixedly connected to the conveying surface of the second conveying component 61. The second conveying component 61 reciprocates to convey the second robotic arm 62, which then grips the labeled expansion valve. The workbench 10 is also equipped with a conveyor belt 63, which is used to transport the labeled expansion valve to the next work station. The material handling mechanism transports the labeled expansion valve onto the conveyor belt 63, realizing fully automated operation, reducing manual intervention, and improving production efficiency and automation level.
[0044] Referring to Figures 1 to 4, the feeding mechanism, the picking mechanism, and the labeling mechanism are located on the periphery of the turntable 21. The working positions of the feeding mechanism, the picking mechanism, and the labeling mechanism correspond to different positioning seats 22. After the feeding mechanism places the expansion valve to be labeled onto the positioning seat 22, the turntable 21 rotates, causing the positioning seat 22 to rotate to the working position corresponding to the labeling mechanism. The pressure plate 33 presses down, causing the pin 34 to insert into the inner hole of the iron shell. The positioning pin 23 of the positioning seat 22 and the pin 34 under the pressure plate 33 respectively limit the upper and lower sides of the inner hole of the expansion valve, aligning the iron shell with the plastic coating of the electromagnetic coil. To limit the relative sliding between the iron shell and the electromagnetic coil, the labeling mechanism performs a labeling operation on the expansion valve on the positioning seat 22. After labeling, the turntable 21 continues to rotate, causing the positioning seat 22 to rotate to the working position corresponding to the material picking mechanism. The material picking mechanism removes the labeled expansion valve and places it on the conveyor belt 63. This cycle repeats, allowing the feeding mechanism, picking mechanism, and labeling mechanism to process workpieces on different positioning seats 22 simultaneously, achieving fully automated assembly line operation of feeding, labeling, and picking. The mechanisms work closely together, the workflow is smooth, and the labeling efficiency of the expansion valve is improved.
[0045] The above are all preferred embodiments of this application. These embodiments are only explanations of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An automated labeling device for expansion valves, characterized in that: The system includes a workbench (10), on which a first mounting base (20) is provided. A turntable (21) is rotatably connected to the first mounting base (20). Several positioning seats (22) are installed on the upper surface of the turntable (21). The positioning seats (22) are circumferentially distributed on the turntable (21). A labeling mechanism is provided on the workbench (10). The labeling mechanism is located on one side of the turntable (21). A mounting frame (31) is provided on the first mounting base (20). The mounting frame (31) is located in the middle of the turntable (21). The turntable (21) has a clearance opening (25) corresponding to the mounting frame (31). A positioning mechanism is provided on the side of the mounting frame (31) near the labeling mechanism.
2. The automated labeling equipment for expansion valves according to claim 1, characterized in that: The positioning seat (22) is provided with a positioning pin (23), the diameter of which is smaller than the inner diameter of the expansion valve shell.
3. The automated labeling equipment for expansion valves according to claim 2, characterized in that: The positioning seat (22) is also provided with a relief groove (24), which is used to cooperate with the protrusion of the expansion valve shell.
4. The automated labeling equipment for expansion valves according to claim 3, characterized in that: The positioning mechanism includes a second mounting base (32), a second driving member and a pressure plate (33). The second mounting base (32) is fixed on the mounting bracket (31). The second driving member is mounted on the second mounting base (32). The pressure plate (33) is fixed to the output end of the second driving member. The second driving member is used to drive the vertical translation of the pressure plate (33).
5. An automated labeling device for expansion valves according to claim 4, characterized in that: The bottom of the pressure plate (33) is provided with a pin (34), the lower end of the pin (34) is tapered, and the pin (34) is arranged opposite to the positioning pin (23).
6. An automated labeling device for expansion valves according to claim 5, characterized in that: The labeling mechanism includes a labeling support (41), which is mounted on a workbench (10). A third mounting seat (42) is installed on the side wall of the labeling support (41). The third mounting seat (42) is slidably connected to the labeling support (41). A fifth driving member is fixedly provided on the labeling support (41). The third mounting seat (42) is fixed to the output end of the fifth driving member. The fifth driving member is used to drive the third mounting seat (42) to move vertically.
7. An automated labeling device for expansion valves according to claim 6, characterized in that: The third mounting base (42) is provided with a rotating base (43) and a third driving member. The rotating base (43) is rotatably connected to the third mounting base (42). The third driving member is fixed to the third mounting base (42). The rotating base (43) is fixed to the output end of the third driving member. The third driving member is used to drive the rotating base (43) to rotate along its central axis.
8. An automated labeling device for expansion valves according to claim 7, characterized in that: A fourth mounting base (44) is detachably connected to the rotary table (43). A fourth driving member (46) is fixed on one side of the fourth mounting base (44). A negative pressure head (47) is fixed at the output end of the fourth driving member (46). The fourth driving member (46) is used to drive the negative pressure head (47) to move closer to or away from the rotary table (21).
9. An automated labeling device for expansion valves according to claim 8, characterized in that: The fourth mounting base (44) is also equipped with a negative pressure pump, and the negative pressure head (47) is connected to the negative pressure pump pipeline.
10. An automated labeling device for expansion valves according to claim 8, characterized in that: The workbench (10) is also equipped with a feeding mechanism and a picking mechanism.