Air tightness detection device for sealing cover

Abstract

An air tightness detection device of a sealing cover comprises a supporting table and a testing seat, the supporting table is provided with a linear sliding module, the linear sliding module is connected with a moving seat, a moving beam of the moving seat is connected with a lifting seat, the lifting seat is provided with a suction cup seat and a pressing head, and a suction cup head of the suction cup seat is provided with a vacuum suction cup. The test seat comprises a test plate and a plurality of rows of sealing test heads, each row of sealing test heads corresponds to the plurality of sucker seats, each sealing test head comprises a positioning block, the upper surface of the positioning block is provided with a vacuum suction hole, the side wall of the positioning block is provided with a vacuum suction pipe, and the other side wall of the positioning block is provided with a push switch; the linear sliding module moves to the position above each row of sealing testing heads, the lifting base presses the suction cup base downwards to enable the sealing cover to be positioned and pressed on the sealing testing heads, and the pressing heads synchronously press the corresponding pressing switches to start vacuumizing testing. According to the utility model, the sealing performance of a plurality of sealing covers can be tested at the same time, and the testing efficiency of the sealing covers is improved.

Description

Technical Field

[0001] This utility model relates to the field of production technology and equipment for sealing caps, and in particular to a device for testing the airtightness of sealing caps. Background Technology

[0002] The sealing cap is injection molded using an injection molding machine, and then overmolded using an LSR (liquid silicone) molding machine. The sealing cap achieves its sealing function through the internally encapsulated silicone. Therefore, the sealing performance of the sealing cap needs to be checked before packaging. In existing technologies, the sealing performance test requires manual positioning and pressing of the sealing cap onto the test holder, turning on the vacuum pump, evacuating the test holder for 30 seconds, then turning off the vacuum pump, and observing whether the vacuum gauge on the test holder can maintain a certain vacuum level within 2 minutes. Therefore, the existing sealing performance testing method is cumbersome, time-consuming, labor-intensive, and inefficient, hindering the improvement of sealing cap production speed. Summary of the Invention

[0003] Therefore, it is necessary to design an automatic detection device to address the problems in the sealing performance testing process of the sealing cap, in order to solve the problems of time-consuming, labor-intensive, and inefficient sealing performance testing in the existing technology.

[0004] To achieve the above objectives, this utility model provides the following: an airtightness testing device for a sealing cap, comprising a support platform and a testing base. A linear sliding module is mounted on the platform surface, and a movable seat is connected to the linear sliding module. The movable seat includes a moving beam connected to the linear sliding module, extending vertically outward from the linear sliding module. The moving beam is connected to a liftable seat that can move up and down. The bottom of the liftable seat is provided with multiple suction cup seats and pressing heads, each corresponding to a suction cup seat. Each suction cup seat has multiple suction cup heads, each equipped with a vacuum suction cup. The testing base includes a testing plate and a test plate mounted on the test plate. The test plate has multiple rows of sealing test heads, and each row of sealing test heads corresponds to multiple suction cup seats. Each sealing test head includes a positioning block that matches the sealing cover. The upper surface of the positioning block has a vacuum suction hole, and a vacuum suction tube is installed on the side wall of the positioning block. The vacuum suction hole communicates with the interior of the vacuum suction tube. The other side wall of the positioning block has a press switch. After the suction cup seat adsorbs the sealing cover, it moves above each row of sealing test heads by means of the linear sliding module. The lifting seat presses down on the suction cup seat to position the sealing cover and press it tightly on the sealing test head. The pressing head presses the corresponding press switch simultaneously to start the vacuum test.

[0005] Furthermore, the movable beam is equipped with a sliding cylinder for the lifting seat to slide up and down, and the telescopic rod end of the sliding cylinder is connected to the lifting seat. Through the sliding cylinder, the lifting seat can effectively press down, thereby driving the vacuum suction cup of the suction cup seat to adsorb the sealing cover and press it tightly against the sealing test head.

[0006] Furthermore, the lifting seat is equipped with a sliding rod for vertical positioning, and the moving beam is equipped with a linear bearing corresponding to the sliding rod, with the sliding rod fitted inside the linear bearing. When the lifting seat slides up and down, the sliding rod provides precise positioning, ensuring accurate sliding of the lifting seat.

[0007] Furthermore, the pressing head includes a fixed head and a silicone head. The silicone head is fitted onto the end of the fixed head, and a spring surrounds the silicone head and the fixed head. By providing a silicone head at the end of the fixed head, the silicone head can effectively press the push switch of the sealed test seat without damaging the push switch. The elastic buffer of the spring ensures that when the pressing head presses down on the push switch, an elastic buffer is formed between the silicone head and the spring, achieving elastic pressing of the push switch by the silicone head and effectively simulating the action of a human finger pressing to activate the switch.

[0008] Furthermore, a vacuum display instrument panel is installed on the side wall of the positioning block, and the vacuum display instrument panel is in communication with the interior of the vacuum suction hole.

[0009] Furthermore, the test plate is equipped with multiple sensors corresponding to the multiple rows of sealing test heads, and the bottom of the moving beam is provided with a sensing plate for sensing the sensors. When the moving seat moves under the action of the linear sliding module, the sensing plate senses the sensors to control the positioning of the linear sliding module in each row of sealing test heads.

[0010] Furthermore, the test plate has multiple pairs of adjustment slots corresponding to multiple rows of sealing test heads. The distance between the sealing test heads can be adjusted precisely through the adjustment slots, ensuring that the installed sealing test heads correspond one-to-one with the suction cup seats on the moving base. This ensures that the suction cup seats can simultaneously position and press the sealing caps in a row, realizing row-by-row sealing tests of the sealing caps.

[0011] Furthermore, each row of the sealing test heads contains 3-10 heads.

[0012] This invention utilizes a movable base to allow rows of sealing caps to be adsorbed from the product tray and positioned to move onto the sealing test base. A sliding cylinder is used to slide and press them together. Simultaneously, a pressing head located on one side of the suction cup base presses against a press switch after the sealing caps are pressed together, thereby activating the vacuum pump. This invention can simultaneously test the sealing performance of multiple sealing caps, greatly improving the testing efficiency of the sealing caps. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 for Figure 1 A magnified view of part A in the diagram.

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the movable seat.

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the press head.

[0017] Figure 5 This is a schematic diagram of the three-dimensional structure of the suction cup head.

[0018] Figure 6 This is a top-view schematic diagram of the three-dimensional structure of the test stand.

[0019] Figure 7 This is a three-dimensional structural diagram of the test stand viewed from below.

[0020] Figure 8 This is a schematic diagram of the three-dimensional structure of the sealing test head.

[0021] The components are: 1-support platform, 11-tabletop, 2-linear sliding module, 3-moving seat, 31-moving beam, 32-lifting seat, 33-linear bearing, 34-sensor plate, 35-slide rod, 36-pressing head, 361-fixed head, 362-spring, 363-silicone head, 37-sliding cylinder, 38-suction cup seat, 381-suction cup head, 382-vacuum suction cup, 383-vacuum connecting pipe, 4-test seat, 41-test plate, 411-adjustment groove, 42-sealing test head, 421-positioning block, 422-vacuum suction hole, 423-press switch, 424-vacuum suction pipe, 425-vacuum display instrument panel, 5-sensor. Detailed Implementation

[0022] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0023] An airtightness testing device for a sealing cap, referring to Figures 1-2The system includes a support platform 1 and a test seat 4. A linear sliding module 2 is provided on the platform 11 of the support platform 1. A movable seat 3 is connected to the linear sliding module 2. The movable seat 3 includes a moving beam 31 connected to the linear sliding module 2. The moving beam 31 extends vertically to the outside of the linear sliding module 2. A lifting seat 32 that can move up and down is connected to the moving beam 31. A sliding cylinder 37 is provided on the moving beam 31 for the lifting seat 32 to slide up and down. The telescopic rod end of the sliding cylinder 37 is connected to the lifting seat 32. The lifting seat 32 can move up and down well through the sliding cylinder 37. In order to ensure the precise sliding of the lifting seat 32, a sliding positioning rod 35 is provided on the lifting seat 32. A linear bearing 33 corresponding to the sliding rod 35 is provided on the moving beam 31. The sliding rod 35 is fitted into the linear bearing 33. When the lifting seat 32 slides up and down, it is positioned by sliding the sliding rod 35.

[0024] Reference Figure 3 and Figure 5 The bottom of the lifting seat 32 is provided with multiple suction cup seats 38 and pressing heads 36. The pressing heads 36 correspond one-to-one with the suction cup seats 38. The suction cup seats 38 are provided with multiple suction cup heads 381. Vacuum suction cups 382 are installed on the suction cup heads 381. The vacuum suction cups 382 are used for vacuum adsorption of the sealing cover. In order to ensure that the vacuum suction cups 382 can adsorb the sealing cover more evenly, there are usually two or more vacuum suction cups 382. The tail of the vacuum suction cups 382 is provided with a vacuum connecting pipe 383. The vacuum connecting pipe 383 is connected to an external vacuum generator through the lifting seat 32.

[0025] Reference Figure 6 , Figure 7 , Figure 8 The test base 4 includes a test plate 41 and multiple rows of sealing test heads 42 mounted on the test plate 41. Each row of sealing test heads 42 corresponds to multiple suction cup seats 38. The test plate 41 has multiple pairs of adjustment grooves 411 corresponding to the multiple rows of sealing test heads 42. The adjustment grooves 411 allow each row of sealing test heads 42 to be adjusted for installation, adjusting the distance between the sealing test heads 42 to ensure that the installed sealing test heads 42 correspond one-to-one with the suction cup seats 38 on the movable base 3. This ensures that the suction cup seats 38 can simultaneously position and press the sealing caps in rows, realizing row-by-row sealing tests of the sealing caps. Preferably, each row of sealing test heads 42 has 3-10 heads. Therefore, during each sealing performance test of the sealing caps, 3-10 batches can be automatically tested simultaneously, greatly improving testing efficiency.

[0026] The sealing test head 42 includes a positioning block 421 that matches the sealing cover. The upper surface of the positioning block 421 has a vacuum suction hole 422. After the sealing cover is positioned and connected to the positioning block 421, a sealing connection is formed between the positioning block 421 and the sealing cover. A vacuum suction tube 424 is installed on the side wall of the positioning block 421. The vacuum suction hole 422 communicates with the inside of the vacuum suction tube 424. The vacuum suction tube 424 is used to connect to an external vacuum pump. A push switch 423 is provided on the other side wall of the positioning block 421. The push switch 423 is used to control the power switch of the external vacuum pump. After the suction cup seat 38 adsorbs the sealing cover, it moves to the top of each row of sealing test heads 42 by means of the linear sliding module 2. The lifting seat 32 presses down the suction cup seat 38 to position the sealing cover and press it tightly on the sealing test head 42. The pressing head 36 presses the corresponding push switch 423 simultaneously to start the vacuum test.

[0027] In this embodiment, refer to Figure 4 The pressing head 36 includes a fixed head 361 and a silicone head 363. The silicone head 363 is fitted onto the end of the fixed head 361, and a spring 362 surrounds the silicone head 363 and the fixed head 361. By setting the silicone head 363 at the end of the fixed head 361, the silicone head 363 can effectively press the pressing switch 423 of the sealing test head 42 without damaging the pressing switch 423. The elastic buffer of the spring 362 ensures that when the pressing head 36 presses down on the pressing switch 423, an elastic buffer is formed between the silicone head 363 and the spring 362, realizing the elastic pressing of the silicone head 363 on the pressing switch 423, effectively simulating the action state of a human finger pressing to start. In this embodiment, for the needs of the sealing cover sealing test, the pressing switch 423 can be a time-delayed disconnect switch, that is, a switch that automatically turns off after a fixed time after the power is started in the pressing state.

[0028] In a further embodiment, a vacuum display instrument panel 425 is installed on the side wall of the positioning block 421. The vacuum display instrument panel 425 is internally connected to the vacuum suction hole 422. The vacuum display instrument panel 425 can intuitively display the vacuum level between the sealing cover and the positioning block 421 after the vacuuming is disconnected.

[0029] In a further embodiment, refer to Figure 2 The test plate 41 is equipped with multiple sensors 5 corresponding to multiple rows of sealing test heads 42. The bottom of the moving beam 31 is equipped with a sensing plate 34 for sensing the sensors 5. When the moving seat 3 moves under the action of the linear sliding module 2, the sensing plate 34 senses the sensors 5 to control the position of the linear sliding module 2 in each row of sealing test heads 42.

[0030] The above embodiments merely illustrate the implementation of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A device for detecting the air tightness of a closure, characterized in that: The device includes a support platform and a test base. A linear sliding module is mounted on the platform, and a movable seat is connected to the linear sliding module. The movable seat includes a moving beam connected to the linear sliding module, extending vertically outward from the linear sliding module. The moving beam is connected to a liftable seat that can move up and down. The bottom of the liftable seat has multiple suction cup seats and pressing heads, each corresponding to a suction cup seat. Each suction cup seat has multiple suction cup heads, each equipped with a vacuum suction cup. The test base includes a test plate and multiple rows of sealed test heads mounted on the test plate. The sealing test head corresponds to multiple suction cup seats. The sealing test head includes a positioning block that matches the sealing cover. A vacuum suction hole is opened on the upper surface of the positioning block. A vacuum suction tube is installed on the side wall of the positioning block. The vacuum suction hole communicates with the interior of the vacuum suction tube. A press switch is provided on the other side wall of the positioning block. After the suction cup seat adsorbs the sealing cover, it moves above each row of sealing test heads by means of the linear sliding module. The lifting seat presses down on the suction cup seat to position the sealing cover and press it tightly on the sealing test head. The pressing head presses the corresponding press switch simultaneously to start the vacuum test.

2. The apparatus for detecting the air tightness of a sealed cap according to claim 1, wherein: The movable beam is equipped with a sliding cylinder for the lifting seat to slide up and down, and the telescopic rod end of the sliding cylinder is connected to the lifting seat.

3. The apparatus for detecting the air tightness of a sealed cap according to claim 1, wherein: The lifting seat is provided with a sliding rod for vertical positioning, and the moving beam is provided with a linear bearing corresponding to the sliding rod, with the sliding rod fitted inside the linear bearing.

4. The apparatus for testing the air tightness of a sealed cap according to claim 1, wherein: The pressing head includes a fixed head and a silicone head, the silicone head being fitted onto the end of the fixed head, and a spring surrounding the silicone head and the fixed head.

5. The apparatus for testing the air tightness of a sealed cap according to claim 1, wherein: A vacuum display instrument panel is installed on the side wall of the positioning block, and the vacuum display instrument panel is in communication with the inside of the vacuum suction hole.

6. The apparatus for testing the air tightness of a sealed cap according to claim 1, wherein: The test plate is equipped with multiple sensors corresponding to the multiple rows of sealed test heads, and the bottom of the moving beam is equipped with a sensing plate for sensing the sensors.

7. The apparatus for testing the air tightness of a sealed cap according to claim 1, wherein: The test plate has multiple pairs of adjustment slots corresponding to multiple rows of the sealed test heads.

8. The airtightness testing device for a sealing cap according to claim 1, characterized in that: There are 3-10 sealing test heads in each row.

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