Automatic labeling device for four-way valve

Abstract

The utility model relates to automatic labeling equipment technical field, especially four -way valve automatic labeling device of kind. It includes feeding conveying module, pickup transfer module, function detection module, recycling conveying module, handling module and labeling module. The utility model has the beneficial effect that: this technical scheme sets up the profiling limit block on the conveyer belt, and sets up the profiling groove in the both sides of labeling conveying line, has solved the problem that four -way valve is difficult to steady positioning in the conveying process, has guaranteed the position accuracy of four -way valve in the conveying process.

Description

Technical Field

[0001] This utility model relates to the field of automated labeling equipment technology, and in particular to an automatic labeling device with a four-way valve. Background Technology

[0002] With the continuous improvement of industrial automation, automatic labeling equipment has been widely used in various manufacturing and testing processes. As a key control component in refrigeration systems, four-way valves require labels to be affixed to specific locations after performance testing to record product information, batch numbers, or test results. However, due to the cylindrical structure of the four-way valve body, its large surface curvature, and irregular planes, stable positioning during automatic conveying is difficult. Furthermore, the labeling area is often located on the side of the valve body or at transitional curved surfaces, making it difficult for conventional labeling mechanisms to fully conform the flexible label to the curved surface, easily resulting in problems such as edge lifting, air bubbles, or poor adhesion, severely affecting the readability and durability of the label.

[0003] Existing technology, disclosed in CN104354945B, describes an automatic labeling machine published on August 31, 2016. This equipment includes a product conveying device and a labeling device. The product conveying device comprises a conveying mechanism, a product positioning mechanism, and a product rotation mechanism. The labeling device includes a top labeling mechanism and a side labeling mechanism, suitable for labeling canned products simultaneously on the can lid and side. Although this solution has a side labeling function, its positioning and rotation mechanisms are mainly designed for regularly symmetrical cylindrical containers (such as beverage cans), relying on bottom support and top clamping to achieve rotational labeling. However, the four-way valve has a complex structure with irregular openings at both ends, making it difficult to stand stably or reliably clamp and rotate. Furthermore, its labeling surface is not a complete circumference, requiring labeling only in specific areas. Therefore, this equipment struggles to accurately limit and orient the labeling of the four-way valve, easily leading to label position misalignment or incorrect label coverage.

[0004] Therefore, it is necessary to design a four-way valve automatic labeling device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an automatic labeling device for a four-way valve to overcome the aforementioned shortcomings of the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An automatic labeling device for a four-way valve includes a feeding conveying module, a picking and transferring module for picking up the four-way valve on the feeding conveying module, a function detection module disposed on the drive path of the picking and transferring module, a recycling conveying module disposed next to the function detection module, a labeling module disposed on the side of the recycling conveying module, and a transport module for transporting the four-way valve on the recycling conveying module to the labeling mechanism. The labeling module includes a labeling conveyor line, a label supply device disposed on the side of the labeling conveyor line, a labeling execution mechanism disposed above the labeling conveyor line, and limiting mechanisms disposed on both sides of the labeling conveyor line; the labeling conveyor line has contour grooves on both sides; the labeling execution mechanism includes a labeling mounting bracket, a longitudinal drive unit mounted on the labeling mounting bracket, an axial drive unit driven by the longitudinal drive unit, a rotary mounting base mounted on the axial drive unit, a rotary cylinder fixed on the rotary mounting base, a rotary block driven by the rotary cylinder, a label picking block disposed on one side of the rotary block, and a contour pressing block disposed on the other side of the rotary block; The bottom of the contour pressing block is provided with an arc-shaped pressing surface that matches the curved surface of the labeling area of ​​the four-way valve.

[0007] Preferably, the feeding and conveying module includes a conveyor belt, a drive motor for driving the conveyor belt, and contouring limiting blocks disposed on both sides of the conveyor belt; the inner side of the contouring limiting block is provided with a groove that matches the shape of the four-way valve.

[0008] Preferably, the pickup and transfer module includes a horizontal servo drive unit, a vertical servo drive unit driven by the horizontal servo drive unit, a lifting plate mounted on the vertical servo drive unit, a clamping cylinder fixed on the lifting plate, and a gripper driven by the clamping cylinder; the inner side of the gripper is provided with a flexible pad.

[0009] Preferably, the functional testing module includes a slide rail assembly, a testing fixture slidably mounted on the slide rail assembly, a sealing head disposed on one side of the testing fixture, a testing plate slidably mounted on the slide rail assembly, limiting blocks respectively restricting both ends of the testing plate, and a second sealing head disposed in the middle of the testing plate; the testing plate is driven to move along the slide rail assembly by a testing drive cylinder.

[0010] Preferably, the recycling and conveying module includes a longitudinal servo drive unit and a carrier driven by the longitudinal servo drive unit; the carrier is provided with a contoured groove that matches the shape of the four-way valve.

[0011] Preferably, the handling module includes a mounting bracket, a transverse servo drive unit disposed on the mounting bracket, a longitudinal servo drive unit driven by the transverse servo drive unit, a clamping cylinder mounted on the longitudinal servo drive unit, and a gripper driven by the clamping cylinder; the inner side of the gripper is provided with a flexible pad.

[0012] Preferably, the longitudinal drive unit of the labeling actuator is fixed to the labeling mounting bracket by bolts, the axial drive unit is fixed to the output end of the longitudinal drive unit by bolts, the rotary mounting base is mounted on the output end of the axial drive unit by bearings, the rotary cylinder is fixed to the rotary mounting base by bolts, the rotary block is fixed to the output end of the rotary cylinder by bolts, the label picking block and the contour pressing block are respectively fixed to both sides of the rotary block by bolts, and the limiting mechanism includes a limiting drive cylinder and a limiting block driven by the limiting drive cylinder.

[0013] Preferably, the bottom of the tag picking block is provided with a vacuum adsorption hole.

[0014] Preferably, photoelectric sensors are provided on both sides of the labeling conveyor line.

[0015] The beneficial effects of this utility model are: by setting contour limiting blocks on the conveyor belt and contour grooves on both sides of the labeling conveyor line, this technical solution solves the problem of the four-way valve being difficult to position stably during the conveying process, and ensures the positional accuracy of the four-way valve during the conveying process. By designing a pick-up and transfer module and a handling module, the four-way valve was efficiently transferred between different workstations, reducing manual intervention and improving production efficiency. By setting a label picking block and a contour pressing block in the labeling actuator, the problem of the difficulty of applying flexible labels to the curved surface of the four-way valve is solved, ensuring complete label application and avoiding problems such as curling edges, air bubbles, or poor adhesion. By setting limit mechanisms on both sides of the labeling conveyor line, the movement of the four-way valve during the labeling process is restricted, further improving the labeling accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an automatic labeling device for a four-way valve according to the present invention; Figure 2 This is a schematic diagram of the functional testing module of an automatic labeling device for a four-way valve according to this utility model; Figure 3 This is a schematic diagram of the pickup and transfer module of an automatic labeling device for a four-way valve according to this utility model; Figure 4 This is a schematic diagram of the labeling module of an automatic labeling device for a four-way valve according to this utility model; Figure 5 This is a schematic diagram of the labeling actuator of a four-way valve automatic labeling device according to this utility model; In the diagram: 1. Feeding and conveying module; 2. Contouring limit block; 3. Pick-up and transfer module; 4. Clamping cylinder; 5. Gripper; 6. Labeling module; 7. Labeling conveyor line; 8. Label supply device; 9. Labeling execution mechanism; 10. Limiting mechanism; 11. Label picking block; 12. Contouring pressing block; 13. Rotary cylinder; 111. Function detection module; 112. Recycling and conveying module. Detailed Implementation

[0017] Reference Figures 1 to 5 An automatic labeling device for a four-way valve, comprising: The feeding and conveying module 1 includes a conveyor belt, a drive motor for driving the conveyor belt, and contouring limiting blocks 2 disposed on both sides of the conveyor belt; the inner side of the contouring limiting block 2 is provided with a groove that matches the shape of the four-way valve. The pickup and transfer module 3 includes a horizontal servo drive unit 31, a vertical servo drive unit 32 driven by the horizontal servo drive unit, a lifting plate mounted on the vertical servo drive unit, a clamping cylinder 4 fixed on the lifting plate, and a gripper 5 driven by the clamping cylinder 4; the inner side of the gripper 5 is provided with a flexible pad. The functional testing module 111 includes a slide rail assembly 1111, a testing fixture 1112 slidably mounted on the slide rail assembly, a sealing head 1113 disposed on one side of the testing fixture, a testing plate slidably mounted on the slide rail assembly, limiting blocks 1114 respectively limiting both ends of the testing plate, and a second sealing head 1115 disposed in the middle of the testing plate; the testing plate is driven to move along the slide rail assembly by a testing drive cylinder. The recycling and conveying module 112 includes a longitudinal servo drive unit and a carrier driven by the longitudinal servo drive unit; the carrier is provided with a contoured groove that matches the shape of the four-way valve. The transport module 33 includes a mounting bracket, a transverse servo drive unit mounted on the mounting bracket, a longitudinal servo drive unit driven by the transverse servo drive unit, a clamping cylinder 4 mounted on the longitudinal servo drive unit, and a gripper 5 driven by the clamping cylinder 4; the inner side of the gripper 5 is provided with a flexible pad. The labeling module 6 includes a labeling conveyor line 7, a label supply device 8 disposed on the side of the labeling conveyor line 7, a labeling execution mechanism 9 disposed above the labeling conveyor line 7, and a limiting mechanism 10 disposed on both sides of the labeling conveyor line 7; the labeling conveyor line 7 is provided with contour grooves on both sides; the labeling execution mechanism 9 includes a labeling mounting bracket, a longitudinal drive unit mounted on the labeling mounting bracket, an axial drive unit driven by the longitudinal drive unit, a rotary mounting seat mounted on the axial drive unit, a rotary cylinder 13 fixed on the rotary mounting seat, a rotary block driven by the rotary cylinder 13, a label picking block 11 disposed on one side of the rotary block, and a contour pressing block 12 disposed on the other side of the rotary block; The bottom of the label picking block 11 is provided with a vacuum adsorption hole; the bottom of the contour pressing block 12 is provided with an arc-shaped pressing surface that matches the curved surface of the labeling area of ​​the four-way valve; the limiting mechanism 10 includes a limiting drive cylinder and a limiting block driven by the limiting drive cylinder.

[0018] The groove shape of the contour-following limiting block 2 matches the outline of the four-way valve, which can limit the lateral movement of the four-way valve during the conveying process and ensure that the four-way valve moves smoothly along the conveyor belt. The contour-following limiting block 2 is fixed to the brackets on both sides of the conveyor belt by bolts, and the drive motor is connected to the drive shaft of the conveyor belt through a coupling, thereby realizing the drive control of the conveyor belt.

[0019] The pickup and transfer module includes a horizontal servo drive unit, a vertical servo drive unit, a lifting plate, a clamping cylinder 4, and a gripper 5. The horizontal servo drive unit is bolted to the equipment frame, and the vertical servo drive unit is connected to the guide rail via a slider mounted on the output end of the horizontal servo drive unit, thus enabling the vertical servo drive unit to move in the horizontal direction. The lifting plate is bolted to the output end of the vertical servo drive unit, the clamping cylinder 4 is bolted to the lifting plate, and the gripper 5 is bolted to the output end of the clamping cylinder 4. A flexible pad made of rubber is provided on the inner side of the gripper 5 to prevent damage to the surface of the four-way valve during clamping. The pickup and transfer module 3, through the cooperation of the horizontal and vertical servo drive units, moves the gripper 5 to the position of the four-way valve on the feeding and conveying module 1. The clamping cylinder 4 drives the gripper 5 to close and clamp the four-way valve, which is then transferred to the functional testing module or the labeling module 6.

[0020] The functional testing module includes a slide rail assembly, a testing fixture, a sealing head, a testing plate, limit blocks, and a testing drive cylinder. The slide rail assembly includes two parallel linear guide rails. The testing fixture is connected to the linear guide rails via a slider, which is mounted at the bottom of the testing fixture, allowing it to move along the slide rail assembly. The testing drive cylinder is bolted to the equipment frame, and its output end is fixedly connected to the testing plate via a connecting plate. Limit blocks are located at both ends of the testing plate, and a second sealing head is located in the middle. When the four-way valve is placed on the testing fixture, the testing drive cylinder drives the testing plate to move along the slide rail assembly, causing the second sealing head to insert into the valve hole of the four-way valve and cooperate with the sealing head to complete the sealing test. The limit blocks restrict the movement range of the testing plate, ensuring the accuracy of the testing action.

[0021] The recycling and conveying module 12 includes a longitudinal servo drive unit and a carrier. The longitudinal servo drive unit is bolted to the equipment frame, and the carrier is bolted to the output end of the longitudinal servo drive unit. The carrier has a contour groove that matches the shape of the four-way valve. The shape of the contour groove is consistent with the outline of the four-way valve, which can fix the position of the four-way valve and prevent it from moving during the conveying process. Driven by the longitudinal servo drive unit, the recycling and conveying module conveys the labeled four-way valve to the designated position.

[0022] The structure of the transport module is similar to that of the pick-and-transfer module 3, including a mounting bracket, a transverse servo drive unit, a longitudinal servo drive unit, a clamping cylinder 4, and a gripper 5. The mounting bracket is bolted to the equipment frame, the transverse servo drive unit is bolted to the mounting bracket, and the longitudinal servo drive unit is connected to the guide rail via a slider mounted on the output end of the transverse servo drive unit, thus enabling the longitudinal servo drive unit to move in the lateral direction. The clamping cylinder 4 is bolted to the output end of the longitudinal servo drive unit, and the gripper 5 is bolted to the output end of the clamping cylinder 4. The transport module, through the cooperation of the transverse and longitudinal servo drive units, transports the four-way valve from the function testing module to the labeling module 6.

[0023] The labeling module 6 includes a labeling conveyor line 7, a label supply device 8, a labeling execution mechanism 9, and a limiting mechanism 10. The labeling conveyor line 7 is driven by a motor and has contour grooves on both sides. The shape of these grooves matches the outline of a four-way valve, limiting the lateral movement of the four-way valve during transport. The label supply device 8 includes a label roll, a peeling plate, and a label sensor. The label roll is mounted on the equipment frame via bearings, the peeling plate is bolted to the equipment frame, and the label sensor is bolted below the peeling plate. After the label on the label roll is peeled off by the peeling plate, the label sensor detects its peeling status, ensuring accurate label supply to the labeling execution mechanism 9. The labeling actuator includes a labeling mounting bracket, a longitudinal drive unit, an axial drive unit, a rotary mounting base, a rotary cylinder 13, a rotating block, a label pickup block 11, and a contour pressing block 12. The labeling mounting bracket is bolted to the equipment frame. The longitudinal drive unit is bolted to the labeling mounting bracket. The axial drive unit is bolted to the output end of the longitudinal drive unit. The rotary mounting base is mounted on the output end of the axial drive unit via bearings. The rotary cylinder 13 is bolted to the rotary mounting base. The rotating block is bolted to the output end of the rotary cylinder 13. The label pickup block 11 and the contour pressing block 12 are bolted to both sides of the rotary block. The bottom of the label pickup block 11 has a vacuum adsorption hole, which is connected to a vacuum pump via an air pipe for adsorbing labels. The bottom of the contour pressing block 12 has an arc-shaped pressing surface that matches the curved surface of the labeling area of ​​the four-way valve. This arc-shaped pressing surface allows the label to be completely adhered to the curved surface of the four-way valve. The limiting mechanism 10 includes a limiting drive cylinder and a limiting block. The limiting drive cylinder is fixed to the equipment frame with bolts, and its output end is fixedly connected to the limiting block through a connecting plate. Photoelectric sensors are provided on both sides of the labeling conveyor line 7. The photoelectric sensors are fixed to the equipment frame with bolts and are used to detect the position of the four-way valve and trigger the action of the limiting mechanism 10. When the photoelectric sensor detects that the four-way valve has reached the designated position, the limiting drive cylinder drives the limiting block to extend, restricting the movement of the four-way valve during the labeling process and ensuring labeling accuracy. In actual operation, the four-way valve is first conveyed to the working area of ​​the pick-up and transfer module 3 via the feeding and conveying module 1. The pick-up and transfer module 3, through the cooperation of the horizontal and vertical servo drive units, moves the gripper 5 to the position of the four-way valve. The gripping cylinder 4 drives the gripper 5 to close, gripping the four-way valve and transferring it to the functional testing module. The functional testing module, through the testing drive cylinder, drives the testing plate to move along the slide rail assembly, causing the second sealing head to insert into the valve hole of the four-way valve and cooperate with the sealing head to complete the sealing test. After the test is completed, the transport module transports the four-way valve to the labeling module 6. The labeling module 6 transports the four-way valve to the working area of ​​the labeling actuator 9 via the labeling conveyor line 7. The label supply device 8 supplies labels to the label pickup block 11. After the label pickup block 11 picks up the label through the vacuum suction hole, the rotary cylinder 13 drives the rotary block to rotate, so that the contour pressing block 12 is aligned with the labeling area of ​​the four-way valve. Then, through the cooperation of the longitudinal drive unit and the axial drive unit, the label is completely affixed to the curved surface of the four-way valve. After labeling is completed, the limiting mechanism 10 releases the four-way valve, and the labeling conveyor line 7 transports it to the recycling conveyor module, finally completing the entire labeling process. First, the four-way valve is conveyed from its starting position to the working area of ​​the pick-up and transfer module 3 via the feeding and conveying module 1. The inner side of the contour-following limiting block 2 in the feeding and conveying module 1 has a groove that matches the shape of the four-way valve, which restricts the lateral movement of the four-way valve during conveying, ensuring its smooth progress along the conveyor belt. When the four-way valve reaches the designated position, the photoelectric sensor detects its position signal and triggers the action of the pick-up and transfer module 3. At this time, the lateral servo drive unit and the longitudinal servo drive unit of the pick-up and transfer module 3 work together to precisely move the gripper 5 above the four-way valve. The clamping cylinder 4 drives the gripper 5 to close, and the flexible pad inside the gripper 5 prevents damage to the surface of the four-way valve. Subsequently, the gripper 5 clamps the four-way valve and transfers it to the functional testing module. In the functional testing module, the slide rail assembly includes two parallel linear guide rails. The testing fixture is connected to the linear guide rails via a slider, allowing it to slide smoothly on the slide rails. When the four-way valve is placed on the testing fixture, the testing drive cylinder is activated, driving the testing plate to move along the slide rail assembly. The second sealing head in the middle of the testing plate is inserted into the valve hole of the four-way valve and cooperates with the sealing head to complete the sealing test. The limit blocks at both ends of the testing plate are used to limit the movement range of the testing plate to ensure the accuracy of the testing action. After the test is completed, it is transported to the recycling conveying module. The contour groove on the carrier fixes the position of the four-way valve to prevent it from moving during the transport process. The longitudinal servo drive unit drives the carrier to transport the labeled four-way valve to the designated position. The transport module is activated, transporting the four-way valve from the functional testing module to the labeling module 6. In the labeling module 6, the labeling conveyor line 7 restricts the lateral movement of the four-way valve during the conveying process through contoured grooves on both sides, ensuring its stability during conveying. When the four-way valve reaches the working area of ​​the labeling actuator 9, the photoelectric sensor detects its position signal and triggers the action of the limit mechanism 10. The limit drive cylinder drives the limit block to extend, restricting the movement of the four-way valve during the labeling process, thereby ensuring labeling accuracy. At the same time, the label roll in the label supply device 8 peels off the label through the peeling plate, and the label sensor detects the peeling status of the label, ensuring that the label can be accurately supplied to the labeling actuator 9. In the labeling actuator 9, the label pickup block 11 picks up the label through the vacuum suction hole at the bottom. Then, the rotary cylinder 13 drives the rotating block to rotate, aligning the contour pressing block 12 with the labeling area of ​​the four-way valve. The longitudinal drive unit and the axial drive unit work together to precisely move the contour pressing block 12 to the labeling position. The arc-shaped pressing surface at the bottom of the contour pressing block 12 perfectly matches the curved surface of the labeling area of ​​the four-way valve, ensuring a tight fit of the label onto the curved surface of the four-way valve and preventing problems such as curling edges, air bubbles, or poor adhesion. After labeling is completed, the limiting mechanism 10 releases the four-way valve, and the labeling conveyor line 7 continues to transport the label.

[0024] The advantages of this utility model are that by setting contour limiting blocks on the conveyor belt and contour grooves on both sides of the labeling conveyor line, the problem of the four-way valve being difficult to position stably during the conveying process is solved, thus ensuring the positional accuracy of the four-way valve during the conveying process. By designing a pick-up and transfer module and a handling module, the four-way valve was efficiently transferred between different workstations, reducing manual intervention and improving production efficiency. By setting a label picking block and a contour pressing block in the labeling actuator, the problem of the difficulty of applying flexible labels to the curved surface of the four-way valve is solved, ensuring complete label application and avoiding problems such as curling edges, air bubbles, or poor adhesion. By setting limit mechanisms on both sides of the labeling conveyor line, the movement of the four-way valve during the labeling process is restricted, further improving the labeling accuracy.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic labeling device for a four-way valve, characterized in that: It includes a feeding conveying module, a picking and transferring module for picking up the four-way valve on the feeding conveying module, a function detection module set on the drive path of the picking and transferring module, a recycling conveying module set next to the function detection module, a labeling module set on the side of the recycling conveying module, and a transport module for transporting the four-way valve on the recycling conveying module to the labeling mechanism. The labeling module includes a labeling conveyor line, a label supply device disposed on the side of the labeling conveyor line, a labeling execution mechanism disposed above the labeling conveyor line, and limiting mechanisms disposed on both sides of the labeling conveyor line; the labeling conveyor line has contour grooves on both sides; the labeling execution mechanism includes a labeling mounting bracket, a longitudinal drive unit mounted on the labeling mounting bracket, an axial drive unit driven by the longitudinal drive unit, a rotary mounting base mounted on the axial drive unit, a rotary cylinder fixed on the rotary mounting base, a rotary block driven by the rotary cylinder, a label picking block disposed on one side of the rotary block, and a contour pressing block disposed on the other side of the rotary block; The bottom of the contour pressing block is provided with an arc-shaped pressing surface that matches the curved surface of the labeling area of ​​the four-way valve.

2. The automatic labeling device for a four-way valve according to claim 1, characterized in that: The feeding and conveying module includes a conveyor belt, a drive motor for driving the conveyor belt, and contouring limiting blocks disposed on both sides of the conveyor belt; the inner side of the contouring limiting block is provided with a groove that matches the shape of the four-way valve.

3. The automatic labeling device for a four-way valve according to claim 1, characterized in that: The pickup and transfer module includes a horizontal servo drive unit, a vertical servo drive unit driven by the horizontal servo drive unit, a lifting plate mounted on the vertical servo drive unit, a clamping cylinder fixed on the lifting plate, and a gripper driven by the clamping cylinder; the inner side of the gripper is provided with a flexible pad.

4. The automatic labeling device for a four-way valve according to claim 1, characterized in that: The functional testing module includes a slide rail assembly, a testing fixture slidably mounted on the slide rail assembly, a sealing head disposed on one side of the testing fixture, a testing plate slidably mounted on the slide rail assembly, limiting blocks respectively restricting both ends of the testing plate, and a second sealing head disposed in the middle of the testing plate; the testing plate is driven to move along the slide rail assembly by a testing drive cylinder.

5. The automatic labeling device for a four-way valve according to claim 1, characterized in that: The recycling and conveying module includes a longitudinal servo drive unit and a carrier driven by the longitudinal servo drive unit; the carrier is provided with a contoured groove that matches the shape of the four-way valve.

6. The automatic labeling device for a four-way valve according to claim 1, characterized in that: The transport module includes a mounting bracket, a transverse servo drive unit mounted on the mounting bracket, a longitudinal servo drive unit driven by the transverse servo drive unit, a clamping cylinder mounted on the longitudinal servo drive unit, and a gripper driven by the clamping cylinder; the inner side of the gripper is provided with a flexible pad.

7. The automatic labeling device for a four-way valve according to claim 1, characterized in that: The longitudinal drive unit of the labeling actuator is fixed to the labeling mounting bracket by bolts. The axial drive unit is fixed to the output end of the longitudinal drive unit by bolts. The rotary mounting base is mounted on the output end of the axial drive unit by bearings. The rotary cylinder is fixed to the rotary mounting base by bolts. The rotary block is fixed to the output end of the rotary cylinder by bolts. The label picking block and the contour pressing block are respectively fixed to both sides of the rotary block by bolts. The limiting mechanism includes a limiting drive cylinder and a limiting block driven by the limiting drive cylinder.

8. The automatic labeling device for a four-way valve according to claim 1, characterized in that: The bottom of the tag pickup block is provided with a vacuum adsorption hole.

9. The automatic labeling device for a four-way valve according to claim 1, characterized in that: Photoelectric sensors are installed on both sides of the labeling conveyor line.

Images