A cup lid seal valve life detection apparatus

Abstract

This utility model relates to the field of testing fixtures, specifically a life testing device for a cup lid sealing valve. The device is mounted on a worktable, with the sealing valve rotatably positioned inside the cup lid. The top of the cup lid forms the opening, and a rod is mounted on the sealing valve to rotate it. The worktable includes a positioning mechanism for positioning the cup lid and two grippers that hold the rod. The movement of the grippers causes the rod to rotate back and forth, driven by a power mechanism mounted on the worktable. In this utility model, a stepper motor continuously reverses direction, causing the grippers to move the rod back and forth. The rod causes the sealing valve to oscillate cyclically. After a certain number of oscillations, air is injected into the positioning fixture through the air inlet to detect gas leakage. The number of oscillations is determined according to the testing requirements, for example, a certain number of oscillations. This cycle is repeated multiple times until a gas leak is detected. The lifespan of the sealing valve is determined based on the total number of oscillations.

Description

Technical Field

[0001] This utility model relates to the field of testing tooling, and in particular to a life testing device for a cup lid sealing valve. Background Technology

[0002] A standard cup lid provides a seal, but this structure is prone to leakage. To further improve the sealing effect, some cup lids feature a more sophisticated design, incorporating a rotating sealing valve. After the cup opening is closed, rotating the valve further enhances the seal. This multi-layered sealing structure ensures that liquid will not leak from any gaps. This type of cup lid structure... Figure 1 As shown, the sealing valve is equipped with a rod head. Rotating the rod head adjusts the angle of the sealing valve to achieve further sealing. When you need to drink water, move the rod head to the other side to release the seal.

[0003] Each opening and closing requires rotating the sealing valve, so it is necessary to determine the lifespan of the sealing valve. Currently, there is a lack of corresponding tooling for testing the lifespan of the sealing valve, and each test of the sealing valve of the cup lid requires manual assistance to perform a variety of tedious operations, which is time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of this invention is to address the problem of the lack of tooling for testing the lifespan of sealing valves in the background art, and to propose a cup lid sealing valve lifespan testing device.

[0005] The technical solution of this utility model is as follows: A cup lid sealing valve life testing device is set on a workbench. The sealing valve used for testing is rotatably installed inside the cup lid. The top of the cup lid is the cup mouth. A rod head is set on the sealing valve to rotate the sealing valve. The workbench is equipped with a positioning mechanism for positioning the cup lid, and two grippers for clamping the rod head. The movement of the grippers drives the rod head to rotate back and forth. The grippers are driven by a power mechanism set on the workbench.

[0006] Preferably, the positioning mechanism includes a positioning cylinder mounted on the worktable, a positioning slide mounted on the telescopic end of the positioning cylinder, a positioning plate mounted on the positioning slide, and a positioning fixture mounted on the positioning plate, with the cup lid threadedly connected to the top of the positioning fixture.

[0007] Preferably, it also includes a sealing mechanism on the worktable. The sealing mechanism includes a lifting cylinder on the worktable, a rotary cylinder on the extension end of the lifting cylinder, a connecting block on the rotating part of the rotary cylinder, and a pressure head at the bottom of the connecting block, the pressure head being located above the cup opening.

[0008] Preferably, the power mechanism includes a movable component mounted on the worktable, an upper slide mounted on the movable component, and a clamping component mounted on the upper slide, wherein the clamping component drives two jaws to clamp the rod head.

[0009] Preferably, the moving component includes a guide rail mounted on the worktable, a lower slide mounted on the guide rail, and a stepper motor mounted on the worktable. The output shaft of the stepper motor is provided with a screw, and the lower slide is provided with a threaded hole that mates with the screw. The upper slide and the lower slide are rotatably connected.

[0010] Preferably, two position detection sensors are installed on the guide rail, and a limit plate is installed on the sliding seat. The position of the limit plate is detected by the position detection sensors.

[0011] Preferably, a connecting frame is provided on the slide block, and a drag chain is provided on the worktable, with the other end of the drag chain connected to the connecting frame.

[0012] Preferably, the clamping assembly includes a slide cylinder mounted on the upper slide, a slide base mounted on the telescopic end of the slide cylinder, and a gripper cylinder mounted on the slide base, wherein the gripper cylinder drives two grippers to move closer to or further away from each other.

[0013] Compared with existing technologies, this utility model has the following beneficial technical effects: The stepper motor continuously rotates forward and backward, the gripper clamps the rod head and moves it back and forth, the rod head drives the sealing valve to swing cyclically, and after a certain number of swings, air is injected into the positioning fixture through the air inlet to detect gas leakage. The number of swings is determined according to the detection requirements. This cycle is repeated multiple times until a gas leakage is detected. The service life of the sealing valve is determined based on the total number of swings. This fixture can quickly position the cup lid and assist the testing equipment in completing the service life test of the sealing valve. It is simple to operate and convenient to use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the existing cup lid structure; Figure 2 This is a schematic diagram of the structure of one embodiment of the present utility model; Figure 3 for Figure 2 A structural diagram from another perspective; Figure 4 for Figure 1 Partial structural diagram; Reference numerals in the attached diagram: 1. Worktable; 2. Positioning cylinder; 3. Positioning slide; 4. Positioning plate; 5. Positioning fixture; 6. Cup lid; 7. Rotary cylinder; 8. Connecting block; 9. Press head; 10. Cup mouth; 11. Sealing valve; 12. Rod head; 13. Air inlet; 14. Stepper motor; 15. Lower slide; 16. Guide rail; 17. Upper slide; 18. Slide cylinder; 19. Slide base; 20. Grip cylinder; 21. Grip; 22. Position detection sensor; 23. Limit plate; 24. Cable chain; 25. Connecting frame. Detailed Implementation

[0015] Example 1; as Figures 1-2 As shown, the life testing device for a cup lid sealing valve proposed in this utility model is set on a workbench 1. The sealing valve 11 used for testing is rotatably installed inside the cup lid 6. The top of the cup lid 6 is the cup mouth 10. A rod head 12 is provided on the sealing valve 11 to rotate the sealing valve 11. The sealing valve 11 can only rotate within a set angle. Rotating to one end seals the valve, and rotating to the other end releases the seal. The workbench 1 is provided with a positioning mechanism for positioning the cup lid 6, and two grippers 21 for clamping the rod head 12. The movement of the grippers 21 drives the rod head 12 to rotate back and forth. The grippers 21 are driven by a power mechanism set on the workbench 1.

[0016] A sealing mechanism is installed on the workbench 1. The sealing mechanism includes a lifting cylinder on the workbench 1, a rotary cylinder 7 on the extension end of the lifting cylinder, a connecting block 8 on the rotating part of the rotary cylinder 7, and a pressure head 9 at the bottom of the connecting block 8. The pressure head 9 is located above the cup mouth 10. When performing a sealing test, the position of the pressure head 9 needs to be adjusted by rotating the rotary cylinder 7, and then the lifting cylinder is lowered to press the pressure head 9 onto the cup mouth 10 to complete the closure of the cup mouth 10. The lifting cylinder is the most common standard cylinder, which raises and lowers the pressure head 9 by extension. The rotary cylinder 7 drives the connecting block 8 and the pressure head 9 to rotate at a certain angle through the rotating part, thereby adjusting the relative position of the pressure head 9 and the cup mouth 10. The lifting cylinder and the rotary cylinder 7 are conventional equipment and will not be described in detail here.

[0017] Example 2; as Figure 2 As shown, this utility model proposes a cup lid sealing valve life testing device. Compared with Embodiment 1, this embodiment details the structure of the positioning mechanism. The positioning mechanism includes a positioning cylinder 2 mounted on a worktable 1, a positioning slide 3 mounted on the telescopic end of the positioning cylinder 2, a positioning plate 4 mounted on the positioning slide 3, and a positioning fixture 5 mounted on the positioning plate 4. The cup lid 6 is threadedly connected to the top of the positioning fixture 5. The positioning fixture 5 simulates the cup body, and an air inlet 13 is provided on the positioning fixture 5. The sealing performance of the cup lid 6 can be tested by connecting an external air pipe, thereby determining the sealing performance of the sealing valve 11.

[0018] Example 3; as Figures 2-4 As shown, this utility model proposes a cup lid sealing valve life testing device. Compared with Embodiment 1, this embodiment details the structure of the power mechanism. The power mechanism includes a moving component mounted on the worktable 1, an upper slide 17 rotatably mounted on the moving component, and a clamping component slidably mounted on the upper slide 17. The clamping component drives two grippers 21 to clamp the rod head 12.

[0019] Furthermore, the moving assembly includes a guide rail 16 mounted on the worktable 1, a sliding lower seat 15 slidably mounted on the guide rail 16, and a stepper motor 14 mounted on the worktable 1. The output shaft of the stepper motor 14 is provided with a screw, and the sliding lower seat 15 is provided with a threaded hole that mates with the screw. The upper slide 17 is rotatably connected to the sliding lower seat 15. Two position detection sensors 22 are provided on the guide rail 16, and a limit plate 23 is provided on the sliding lower seat 15. The position of the sliding lower seat 15 is determined by detecting the position of the limit plate 23 by the position detection sensors 22. The two position detection sensors 22 are used to detect the farthest and closest back-and-forth movement distance of the sliding lower seat 15, respectively. In order for the sliding lower seat 15 to move back and forth within a set range, a control system is provided on the worktable 1. The control system is connected to the stepper motor 14 for control and to the two position detection sensors 22 for signal transmission. When the control system receives a position signal from one of the position detection sensors 22, it controls the stepper motor 14 to rotate in the reverse direction, causing the sliding lower seat 15 to move in the reverse direction. A connecting frame 25 is provided on the lower slide seat 15, and a drag chain 24 is provided on the worktable 1. The other end of the drag chain 24 is connected to the connecting frame 25. The purpose of setting the drag chain 24 is to make the movement of the lower slide seat 15 more stable.

[0020] Furthermore, the clamping assembly includes a slide cylinder 18 disposed on the upper slide 17, a slide base 19 disposed on the telescopic end of the slide cylinder 18, and a gripper cylinder 20 disposed on the slide base 19. The gripper cylinder 20 drives two grippers 21 to move closer to each other or further away from each other. The gripper cylinder 20 is a finger cylinder, which has two moving ends that move closer to each other or further away from each other. These two moving ends are respectively connected to the two grippers 21.

[0021] In summary, when using this utility model, first screw the cup lid 6 onto the positioning fixture 5 to fix the cup lid 6. At this time, the rod head 12 is perpendicular to the guide rail 16. Then, start the stepper motor 14 to drive the screw to rotate, so that the sliding seat 15 moves close to the cup lid 6. Manually adjust the upper slide 17 so that the extension and retraction direction of the slide cylinder 18 is perpendicular to the guide rail 16. Start the slide cylinder 18, and the slide seat 19 drives the gripper cylinder 20 and gripper 21 to approach the rod head 12. After the position is appropriate, the gripper 21 clamps the rod head 12, and then the life detection process begins. During this process, the stepper motor 14 continuously rotates forward and backward, driving the lower slide... 15. The upper slide 17, slide cylinder 18, slide base 19, gripper cylinder 20, and gripper 21 move back and forth. The upper slide 17 can rotate freely on the lower slide 15 and will adjust its angle automatically during the movement. The gripper 21 grips the rod head 12 and moves back and forth continuously. The rod head 12 drives the sealing valve 11 to swing cyclically. After swinging a certain number of times, air is injected into the positioning fixture 5 through the air inlet 13 to detect gas leakage. The number of swings is determined according to the detection requirements, such as 30 swings. After multiple cycles, the gas leakage is detected. The service life of the sealing valve 11 is determined based on the total number of swings.

[0022] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A life testing device for a cup lid sealing valve, the device being set on a workbench (1), wherein the sealing valve (11) used for testing is rotatably mounted inside a cup lid (6), the top of the cup lid (6) is a cup opening (10), and a rod head (12) is provided on the sealing valve (11) for rotating the sealing valve (11); characterized in that, The workbench (1) is equipped with a positioning mechanism for positioning the cup lid (6) and two grippers (21) for clamping the rod head (12). The movement of the grippers (21) causes the rod head (12) to rotate back and forth. The grippers (21) are driven by a power mechanism set on the workbench (1).

2. The cup lid seal valve life detection apparatus of claim 1, wherein The positioning mechanism includes a positioning cylinder (2) on the worktable (1), a positioning slide (3) on the telescopic end of the positioning cylinder (2), a positioning plate (4) on the positioning slide (3), and a positioning fixture (5) on the positioning plate (4). The cup lid (6) is threadedly connected to the top of the positioning fixture (5).

3. The cup lid seal valve life detection apparatus of claim 1, wherein It also includes a sealing mechanism set on the workbench (1), the sealing mechanism including a lifting cylinder set on the workbench (1), a rotary cylinder (7) set on the extension end of the lifting cylinder, a connecting block (8) set on the rotating part of the rotary cylinder (7), and a pressure head (9) set at the bottom of the connecting block (8), the pressure head (9) being located above the cup mouth (10).

4. The cup lid seal valve life detection apparatus of claim 1, wherein, The power mechanism includes a moving component mounted on the worktable (1), an upper slide (17) mounted on the moving component, and a clamping component mounted on the upper slide (17). The clamping component drives two jaws (21) to clamp the rod head (12).

5. The cup lid seal valve life detection apparatus of claim 4, wherein, The moving component includes a guide rail (16) mounted on the worktable (1), a sliding lower seat (15) mounted on the guide rail (16), and a stepper motor (14) mounted on the worktable (1). The output shaft of the stepper motor (14) is provided with a screw, and the sliding lower seat (15) is provided with a threaded hole that mates with the screw. The upper slide (17) is rotatably connected to the lower slide (15).

6. The cup lid seal valve life detection apparatus of claim 5, wherein, Two position detection sensors (22) are set on the guide rail (16), and a limit plate (23) is set on the slide block (15). The position of the limit plate (23) is detected by the position detection sensors (22).

7. The cup lid sealing valve life testing device according to claim 5, characterized in that, A connecting frame (25) is provided on the sliding seat (15), and a drag chain (24) is provided on the worktable (1). The other end of the drag chain (24) is connected to the connecting frame (25).

8. The cup lid seal valve life detection apparatus of claim 5, wherein, The clamping assembly includes a slide cylinder (18) mounted on the upper slide (17), a slide base (19) mounted on the telescopic end of the slide cylinder (18), and a gripper cylinder (20) mounted on the slide base (19). The gripper cylinder (20) drives two grippers (21) to move closer to or further away from each other.

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