Tinplate can leakproofness detection device

Abstract

The utility model belongs to the field of tinplate can detection, particularly relates to a tightness detection device for a tinplate can, and aims to solve the problems that after an existing tinplate can is placed in water, due to the fact that the tinplate can is of a hollow structure, a part of the tinplate can easily floats on the water and is detected after being pressurized, and the part, on the water surface, of the tinplate can easily interferes with a detection result. According to the technical scheme, the iron can detection device comprises a bottom plate and a detection tank, the corners of the four sides of the bottom plate are arc-shaped, the bottom of the detection tank is fixedly arranged on one side of the top of the bottom plate, water used for detection is placed in the detection tank, and a hydraulic cylinder is matched with a piston, so that an iron can can be quickly put into and taken out of the water; therefore, the detection efficiency is improved, the pressure of the deepwater environment on the iron can is simulated, whether the sealing performance of the iron can is qualified or not can be accurately detected, meanwhile, the iron can can be completely placed in water, and the situation that the detection result is affected due to the fact that the iron can is locally located on the water is prevented.

Description

Technical Field

[0001] This utility model relates to the field of tin can testing technology, and in particular to a device for testing the airtightness of tin cans. Background Technology

[0002] Tin cans, also known as iron cans or tin boxes, are cans made of tinplate. Tinplate is iron with a tin coating for protection. Generally, for the sake of exquisite packaging, printing is used, hence the name "printed tin cans". After the tin cans are processed and produced, a sealing test device is needed to check their sealing effect.

[0003] A search revealed that patent CN220230821U discloses a tin can airtightness testing device.

[0004] However, the above technical solution has the following problems: after the iron can is placed in water, because the iron can has a hollow structure, part of it is easy to float on the water. When it is tested after being pressurized, the part of the iron can on the water surface can easily interfere with the test results. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where, when a tin can is placed in water, a portion of it tends to float due to its hollow structure, and the floating portion can interfere with the test results after pressurization. Therefore, this invention proposes a sealing detection device for tin cans.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A sealing test device for tin cans includes a base plate and a test tank. The four corners of the base plate are all rounded. The bottom of the test tank is fixedly installed on the top side of the base plate. Water for testing is placed inside the test tank. A top cover for sealing is provided on the top of the test tank.

[0008] The testing agency is located inside the testing tank and is used to test the iron can.

[0009] The placement mechanism, which is set on the detection mechanism, is used to place the iron can in water.

[0010] In one possible design, the detection mechanism includes a hydraulic cylinder, a piston, and a connecting column. The bottom of the hydraulic cylinder is fixedly mounted on the top of the top cover by bolts. The output end of the hydraulic cylinder slides through the center of the top of the top cover and is fixedly connected to the top of the piston. The outer side of the piston is slidably connected to the inner wall of the detection tank. The center of the bottom of the piston is fixedly connected to the top of the connecting column. The iron tank is placed at the bottom of the connecting column for detection.

[0011] In one possible design, the placement mechanism includes a top block, multiple guardrails, two side blocks, two retaining rings, two locking blocks, and a bottom block. The top center of the top block is fixedly connected to the bottom end of the connecting column. The bottoms of the two side blocks are respectively fixedly connected to the top two sides of the same bottom block. The multiple guardrails are respectively fixedly installed at the top edge of the same bottom block. The two retaining rings are respectively rotatably installed on the opposite sides of the two side blocks. The two locking blocks are respectively fixedly installed on the two sides of the same top block. The two retaining rings are respectively sleeved on the two locking blocks.

[0012] In one possible design, each of the two side blocks has a handle for holding a tin can that facilitates inspection of the top of the bottom block, and the sides of the blocks that are far apart are fixedly connected.

[0013] In one possible design, upright plates are fixedly connected to both sides of the top of the base plate, and notches are provided on the top of both upright plates. Side plates are fixedly connected to both sides of the top cover to facilitate the disassembly and assembly of the top cover. The two notches fit into the two side plates respectively. A collection box for collecting dripping water is fixedly installed on the side of the two upright plates that are close to each other. A drain pipe is provided on the front side of the collection box.

[0014] In one possible design, a push frame is fixedly installed on the front side of the base plate to facilitate the movement of the device, and casters are fixedly connected to the four bottom corners of the base plate.

[0015] In one possible design, a sealing ring is fixedly provided on the bottom inner wall of the top cover to maintain a tight seal.

[0016] In this application, during use, the tin can to be tested is placed on the placement mechanism, i.e., on the base block, and secured by the cooperation of a retaining ring and a retaining block. Then, the top cover is placed on, and the airtightness of the test can is ensured by a sealing method (such as a sealing ring). When the hydraulic cylinder receives a command from the external controller and starts, its output end pushes the piston downwards inside the test can. Since the piston is fixedly connected to the connecting column, the connecting column also moves downwards, causing the tin can placed on the top block to enter the water. As the piston continues to move downwards, the water pressure inside the test can gradually increases, thus simulating the pressure of a deep-water environment on the tin can. During the testing process, if the tin can has a good seal, no water will enter its interior; conversely, if the seal is poor, water will enter the interior of the tin can. Water may get in. After the test, the hydraulic cylinder will drive the piston and connecting column to move upwards. Then, the top cover will be removed and placed between the upright plates through the notch and side plates. The bottom block of the iron can will be removed. At this time, by observing whether there is water inside the iron can, it can be determined whether its sealing performance is qualified. For ease of operation, this device is also designed with auxiliary structures such as handles and collection boxes. The handles make it easy for the operator to remove the bottom block from the top block and hold it after the test. The collection box can collect any water that may drip after the placement mechanism is removed and drain the collected water through the drain pipe to keep the device clean and dry. In addition, this device is also designed with moving structures such as push frames and casters, which makes the device easy to move and position, improving the flexibility and efficiency of the test.

[0017] The beneficial effects of this utility model are as follows:

[0018] In this invention, the detection mechanism and placement mechanism, along with the cooperation of the hydraulic cylinder and piston, allow for the rapid placement and removal of the iron can from the water, thereby improving detection efficiency. Furthermore, by simulating the pressure of deep water on the iron can, the sealing performance of the iron can can be accurately detected. Simultaneously, the entire iron can can be placed in the water to prevent partial submersion and ensure accurate detection results. The design of auxiliary structures such as handles, collection boxes, push frames, and casters makes the operation of the device more convenient and facilitates its movement and positioning. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is an exploded cross-sectional view of the detection device of this utility model;

[0021] Figure 3 This is an exploded view of the placement structure of this utility model;

[0022] Figure 4 This is a partial structural schematic diagram of the present invention.

[0023] In the diagram: 1. Base plate; 2. Casters; 3. Push frame; 4. Vertical plate; 5. Testing tank; 6. Top cover; 7. Side plate; 8. Hydraulic cylinder; 9. Sealing ring; 10. Piston; 11. Connecting column; 12. Bottom block; 13. Top block; 14. Locking block; 15. Snap ring; 16. Guardrail; 17. Side block; 18. Handle; 19. Notch; 20. Collection box; 21. Drain pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Reference Figures 1-4 The detection device includes a base plate 1 and a detection tank 5. The four corners of the base plate 1 are all set to be rounded. This design is not only aesthetically pleasing, but also reduces the impact force during collision to a certain extent and increases the safety of the device. The bottom of the detection tank 5 is fixedly set on the top side of the base plate 1, and the inside is filled with water for detection. In order to maintain the airtightness of the detection tank 5, a top cover 6 is set on its top to ensure that the water will not leak out during the detection process.

[0027] The testing mechanism mainly includes a hydraulic cylinder 8, a piston 10, and a connecting column 11. The hydraulic cylinder 8 is fixedly mounted on the top of the top cover 6 by bolts. Its output end slides through the center of the top of the top cover 6 and is fixedly connected to the top of the piston 10. The outer side of the piston 10 is slidably connected to the inner wall of the testing tank 5 to ensure that the piston 10 will not rub or get stuck with the inner wall of the testing tank 5 when it moves up and down. The bottom center of the piston 10 is fixedly connected to the top of the connecting column 11. In this way, when the hydraulic cylinder 8 works, it can drive the piston 10 and the connecting column 11 to move downward together, thereby driving the iron can placed at the bottom of the connecting column 11 to descend and place it underwater. The pressure brought by the piston 10 to the water simulates water pressure. If the iron can has poor sealing, water will be inside when it is taken out, thus realizing the sealing test of the iron can.

[0028] The placement mechanism includes a top block 13, multiple guardrails 16, two side blocks 17, two retaining rings 15, two retaining blocks 14, and a bottom block 12. The top center of the top block 13 is fixedly connected to the bottom end of the connecting column 11, serving as a direct top cover for the iron can. The bottoms of the two side blocks 17 are respectively fixedly connected to the top sides of the same bottom block 12, forming a stable support structure. The multiple guardrails 16 are respectively fixedly installed at the top edge of the same bottom block 12 to prevent the iron can from slipping during the test. The two retaining rings 15 are respectively rotatably installed on the opposite side of the two side blocks 17. The two retaining blocks 14 are respectively fixedly installed on both sides of the same top block 13. The retaining rings 15 can be sleeved on the retaining blocks 14, thereby fixing the iron can placed on the bottom block 12 and preventing it from partially leaking out of the water surface during the test, which would affect the test results.

[0029] To facilitate operation, handles 18 are fixedly connected to the two side blocks 17 on the side that are far apart, so that the operator can remove the bottom block 12 from the top block 13 and hold it after the inspection is completed.

[0030] This application can be used in the field of tin can testing, as well as in other fields applicable to this application.

[0031] Example 2

[0032] refer to Figures 1-4 An improved version of Example 1, a sealing test device for tin cans, comprising:

[0033] Upright plates 4 are fixedly connected to both sides of the top of the base plate 1, and notches 19 are opened on the top of the two upright plates 4. Side plates 7 are fixedly connected to both sides of the top cover 6. The two side plates 7 can fit into the two notches 19 respectively, so that the side plates 7 can be placed through the notches 19, and then the top cover 6 after testing can be placed. At the same time, the same collection box 20 is fixedly installed on the side of the two upright plates 4 that are close to each other, which is used to collect water that may drip after the placement mechanism is taken out. A drain pipe 21 is provided on the front side of the collection box 20 to facilitate the drainage of the collected water.

[0034] A push frame 3 is also fixedly installed on the front side of the base plate 1, and casters 2 are fixedly connected to the four corners of the bottom of the base plate 1. This design allows the device to be moved and positioned easily, improving the flexibility and efficiency of the inspection.

[0035] To ensure the airtightness of the top cover 6, a sealing ring 9 is fixedly installed on its bottom inner wall to further prevent water leakage during the testing process and ensure the accuracy of the test results.

[0036] However, as is well known to those skilled in the art, the working principle and wiring method of the hydraulic cylinder 8 are commonplace and are all conventional methods or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience. The hydraulic cylinder 8 is connected to an external controller through a circuit and is powered by an external power source.

[0037] 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. A device for detecting the airtightness of tin cans, characterized in that, It includes a base plate (1) and a test tank (5). The four corners of the base plate (1) are all arc-shaped. The bottom of the test tank (5) is fixedly set on the top side of the base plate (1). The test tank (5) contains water for testing. The top of the test tank (5) is provided with a top cover (6) for sealing. The testing agency is located inside the testing tank (5) for testing the iron tank; The placement mechanism, which is set on the detection mechanism, is used to place the iron can in water.

2. The airtightness testing device for tin cans according to claim 1, characterized in that, The detection mechanism includes a hydraulic cylinder (8), a piston (10), and a connecting column (11). The bottom of the hydraulic cylinder (8) is fixedly mounted on the top of the top cover (6) by bolts. The output end of the hydraulic cylinder (8) slides through the top center of the top cover (6) and is fixedly connected to the top of the piston (10). The outer side of the piston (10) is slidably connected to the inner wall of the detection tank (5). The bottom center of the piston (10) is fixedly connected to the top of the connecting column (11). The iron tank is placed at the bottom of the connecting column (11) for detection.

3. The airtightness testing device for tin cans according to claim 1, characterized in that, The placement mechanism includes a top block (13), multiple guardrails (16), two side blocks (17), two retaining rings (15), two retaining blocks (14), and a bottom block (12). The top center of the top block (13) is fixedly connected to the bottom end of the connecting column (11). The bottoms of the two side blocks (17) are respectively fixedly connected to the top two sides of the same bottom block (12). The multiple guardrails (16) are respectively fixedly installed at the top edge of the same bottom block (12). The two retaining rings (15) are respectively rotatably installed on the side of the two side blocks (17) that are far apart. The two retaining blocks (14) are respectively fixedly installed on both sides of the same top block (13). The two retaining rings (15) are respectively sleeved on the two retaining blocks (14).

4. The airtightness detection device for tin cans according to claim 3, characterized in that, Each of the two side blocks (17) is fixedly connected to a handle (18) for holding a metal can to facilitate inspection of the top of the bottom block (12).

5. The airtightness testing device for tin cans according to claim 1, characterized in that, The bottom plate (1) is fixedly connected to two upright plates (4) on both sides of the top. The top of each of the two upright plates (4) is provided with a notch (19). The top cover (6) is fixedly connected to two side plates (7) on both sides to facilitate the disassembly and assembly of the top cover (6). The two notches (19) are respectively fitted into the two side plates (7). The two upright plates (4) are fixedly provided with the same collection box (20) for collecting dripping water on the side that is close to each other. The front of the collection box (20) is provided with a drain pipe (21).

6. The airtightness testing device for tin cans according to claim 1, characterized in that, The front side of the base plate (1) is fixedly provided with a push frame (3) to facilitate the movement of the device, and the four corners of the bottom of the base plate (1) are all fixedly connected with casters (2).

7. The airtightness testing device for tin cans according to claim 1, characterized in that, A sealing ring (9) for maintaining a tight seal is fixedly provided on the bottom inner wall of the top cover (6).

Images