Zip-top can pressurization leakage testing device

Abstract

The utility model provides a zip-top can pressurization leakage testing device, the zip-top can pressurization leakage testing device comprises a testing box, a testing frame, a lifting assembly, a sealing plate, two clamps and a pressure sensor, the upper side of the testing box is open, the bottom of the testing box is provided with a water outlet, and the interior of the testing box is suitable for storing water; the test rack is arranged above the test box; the lifting assembly is arranged on one side of the test box and connected with the test box, and the power output end is connected with the test frame; the sealing plate is vertically arranged, is connected with the testing frame and is provided with an air supply interface, one side of the sealing plate is suitable for abutting against the top of the tank body in a sealing manner, the other side of the sealing plate is suitable for abutting against the bottom of the tank cover in a sealing manner, and an air path communicated with the air supply interface and two sides is formed in the sealing plate and is used for inflating the tank body and the tank cover; the two clamps are respectively arranged on two sides of the sealing plate, are connected with the testing frame, are respectively provided with adsorption mechanisms, and are suitable for respectively adsorbing and pressing the bottom of the tank body and the top of the tank cover; and the pressure sensor is connected with the test box or the test frame and is used for detecting the pressure in the tank body and the tank cover.

Description

Aluminum can pressure leak testing device Technical Field

[0001] This utility model belongs to the technical field of aluminum can testing equipment, specifically relating to an aluminum can pressure leak testing device. Background Technology

[0002] Aluminum cans are made entirely of aluminum alloy and are easy to open, carry, and recyclable. They are widely used in the beverage, canned food, and milk powder industries, such as the common canned Coca-Cola. National standards stipulate certain requirements for the pressure resistance of aluminum can lids. If the pressure resistance is insufficient, the lid may crack, causing leakage of the liquid inside, or even a burst.

[0003] Therefore, after the aluminum cans are manufactured, it is necessary to test their pressure resistance and sealing performance. However, currently, the can body and the lid are usually tested separately, which results in low testing efficiency. Summary of the Invention

[0004] This utility model provides a pressure leak testing device for beverage cans, which aims to provide a device that can simultaneously test the pressure resistance and sealing performance of the can body and the can lid.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a pressure leak testing device for aluminum cans, comprising:

[0006] The test chamber has an open top and a drain outlet at the bottom, and its interior is suitable for storing water.

[0007] The test rack is located on the upper side of the test box;

[0008] A lifting assembly is located on one side of the test box and connected to the test box. Its power output end is connected to the test frame, driving the test frame to sink into the test box or rise from the test box.

[0009] A sealing plate is vertically arranged and connected to the test frame. It is equipped with an air supply interface, which is adapted to be connected to an air source. One side of the sealing plate is adapted to be sealed against the top of the tank and the other side is adapted to be sealed against the bottom of the tank cover. An air passage is opened in the sealing plate to be connected to the air supply interface and the two sides for filling the tank and the tank cover with air.

[0010] Two clamps are respectively located on both sides of the sealing plate and connected to the test frame. Each clamp is equipped with an adsorption mechanism, which is suitable for adsorbing and pressing the bottom of the tank and the top of the tank cover respectively.

[0011] A pressure sensor, connected to the test box or the test frame and connected to the air supply interface, is used to detect the pressure inside the tank and the tank cover.

[0012] In one possible implementation of the pressure leak testing device for beverage cans provided by this utility model, the test frame includes a frame body and two mounting plates. The frame body is a frame structure and is connected to the power output end of the lifting assembly. The two mounting plates are arranged horizontally, parallel and spaced apart, and are respectively connected to the frame body. The sealing plate is located between the two mounting plates and is connected to the frame body. The two clamps are respectively connected to the two mounting plates.

[0013] In one possible implementation of the pressure leak testing device for aluminum cans provided by this utility model, the lifting assembly includes a first cylinder, which is connected to the test box, and the piston rod of the first cylinder is connected to the test frame.

[0014] In one possible implementation of the pressure leak testing device for aluminum cans provided by this utility model, the lifting assembly further includes two guide mechanisms, which are respectively located on both sides of the first cylinder and connected to the test box and the test frame.

[0015] In one possible implementation of the pressure leak testing device for beverage cans provided by this utility model, each of the guiding mechanisms includes a guide rod and several guide sleeves, the several guide sleeves are respectively connected to the test box, the guide rod passes through the several guide sleeves, and one end is connected to the test frame.

[0016] In one possible implementation of the pressure leak testing device for aluminum cans provided by this utility model, the clamp includes a driving assembly and a pressure plate. The driving assembly is connected to the mounting plate, and the pressure plate is connected to the power output end of the driving assembly. It is adapted to move closer to or further away from the sealing plate under the drive of the driving assembly. The adsorption mechanism is connected to the side of the pressure plate facing the sealing plate.

[0017] In one possible implementation of the pressure leak testing device for beverage cans provided by this utility model, the driving assembly includes a second cylinder and a safety valve. The second cylinder is connected to the mounting plate, and the piston rod of the second cylinder is connected to the pressure plate. The safety valve is connected to the second cylinder.

[0018] In one possible implementation of the pressure leak testing device for beverage cans provided by this utility model, the pressure plate has several grooves on the side facing the sealing plate.

[0019] In one possible implementation of the pressure leak testing device for aluminum cans provided by this utility model, the adsorption mechanism includes a negative pressure suction cup and an exhaust valve. The negative pressure suction cup is connected to the pressure plate and is adapted to communicate with a negative pressure source. The exhaust valve is connected to the pressure plate and communicates with the negative pressure suction cup.

[0020] In one possible implementation of the pressure testing device for beverage cans provided by this utility model, the pressure sensor is a pressure gauge, which is connected to the sealing plate and is used to detect the pressure inside the can and the can lid.

[0021] The beneficial effects of the pressure testing device for aluminum cans provided by this utility model are as follows: Compared with the prior art, the pressure testing device for aluminum cans provided by this utility model clamps the bottle body and the bottle cap simultaneously onto the sealing plate using two clamps, and fixes them on the test frame. Then, the lifting component drives the bottle body and the bottle cap on the test frame to sink below the liquid surface in the test chamber, and simultaneously fills the bottle body and the bottle cap with gas through the air passage in the sealing plate to ensure that the pressure inside the bottle body and the bottle cap is the same. The pressure sensor monitors the pressure inside the bottle body and the bottle cap, and simultaneously tests the pressure resistance and sealing performance of the bottle body and the bottle cap, which greatly improves the testing efficiency. Attached Figure Description

[0022] Figure 1 is a three-dimensional structural schematic diagram of the pressure testing device for beverage cans provided in an embodiment of this utility model;

[0023] Explanation of reference numerals in the attached figures:

[0024] 10. Test box; 21. Frame; 22. Mounting plate; 31. First cylinder;

[0025] 32. Guide rod; 33. Guide sleeve; 41. Second cylinder; 42. Safety valve;

[0026] 43. Pressure plate; 44. Groove; 51. Negative pressure suction cup; 52. Exhaust valve;

[0027] 60. Pressure gauge; 70. Sealing plate; 71. Air supply interface; 72. Air passage. Detailed Implementation

[0028] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is actually illustrative only and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0032] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0033] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0034] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0035] Please refer to Figure 1 for details. The pressure leak testing device for aluminum cans provided by this utility model will now be described. The pressure leak testing device for aluminum cans includes a test chamber 10, a test frame, a lifting assembly, a sealing plate 70, two clamps, and a pressure sensor. The test chamber 10 is open on the upper side and has a drain outlet at the bottom, and is suitable for storing water. The test frame is mounted on the upper side of the test chamber 10. The lifting assembly is located on one side of the test chamber 10 and connected to the test chamber 10. Its power output end is connected to the test frame, driving the test frame to sink into or rise from the test chamber 10. The sealing plate 70 is vertically arranged, connected to the test frame, and has an air supply interface 71. 1. Suitable for connection with a gas source, one side of the sealing plate 70 is suitable for sealing and abutting against the top of the tank body, and the other side is suitable for sealing and abutting against the bottom of the tank cover. The sealing plate 70 has an air passage 72 that connects to the gas supply interface 71 and the two sides, which is used to fill the tank body and the tank cover with gas. Two clamps are respectively set on both sides of the sealing plate 70, connected to the test frame, and are respectively equipped with an adsorption mechanism, which is suitable for adsorbing and pressing the bottom of the tank body and the top of the tank cover respectively. The pressure sensor is connected to the test box 10 or the test frame and is connected to the gas supply interface 71, which is used to detect the pressure inside the tank body and the tank cover.

[0036] Specifically, the sealing plate 70 can be a sheet material with certain toughness and sealing properties, such as a rubber sheet or a silicone sheet; furthermore, the sealing plate 70 can also be composed of a steel plate sandwiched between two layers of rubber sheets or silicone sheets to improve the strength of the sealing plate 70.

[0037] The beneficial effects of the pressure testing device for aluminum cans provided in this embodiment of the present invention are as follows: Compared with the prior art, the pressure testing device for aluminum cans provided in this embodiment of the present invention uses two clamps to simultaneously clamp the bottle body and bottle cap onto the sealing plate 70 and fix them onto the test frame. Then, the lifting assembly drives the bottle body and bottle cap on the test frame to sink below the liquid surface in the test chamber 10, and gas is simultaneously injected into the bottle body and bottle cap through the air passage 72 in the sealing plate 70 to ensure that the pressure inside the bottle body and bottle cap is the same. The pressure sensor monitors the pressure inside the bottle body and bottle cap, and the pressure resistance and sealing performance of the bottle body and bottle cap are tested simultaneously, which greatly improves the testing efficiency.

[0038] As shown in Figure 1, in a specific embodiment of the pressure leak testing device for beverage cans provided in this utility model, the test frame includes a frame body 21 and two mounting plates 22. The frame body 21 is a frame structure and is connected to the power output end of the lifting assembly. The two mounting plates 22 are arranged horizontally, parallel and spaced apart, and are fixedly connected to the frame body 21 respectively. The sealing plate 70 is disposed between the two mounting plates 22 and is fixedly connected to the frame body 21. Two clamps are fixedly connected to the two mounting plates 22 respectively.

[0039] Furthermore, as shown in Figure 1, in a specific embodiment of the pressure leak testing device for cans provided in this utility model, the lifting assembly includes a first cylinder 31, which is connected to the test box 10, and the piston rod of the first cylinder 31 is fixedly connected to the test frame.

[0040] Specifically, the piston rod of the first cylinder 31 extends, and the test frame is taken out of the test chamber 10, which facilitates the installation of the bottle body and cap on the test frame. Then, the piston rod of the first cylinder 31 is retracted, the test frame moves downward, and the bottle body and cap sink below the liquid surface in the test chamber 10.

[0041] Furthermore, as shown in Figure 1, in a specific embodiment of the can pressurization and leak testing device provided in this utility model, the lifting assembly further includes two guide mechanisms, which are respectively located on both sides of the first cylinder 31 and connected to the test box 10 and the test frame.

[0042] Specifically, as shown in Figure 1, in a specific embodiment of the pressure leak testing device for cans provided in this utility model, each guide mechanism includes a guide rod 32 and several guide sleeves 33. The several guide sleeves 33 are respectively fixedly connected to the test box 10. The guide rod 32 passes through the several guide sleeves 33 and slides with the guide sleeves 33. One end of the guide rod 32 is fixedly connected to the test frame so that the lifting and lowering of the test frame is more stable.

[0043] As shown in Figure 1, in a specific embodiment of the pressure leak testing device for beverage cans provided in this utility model, the clamp includes a driving component and a pressure plate 43. The driving component is fixedly connected to the mounting plate 22, and the pressure plate 43 is fixedly connected to the power output end of the driving component. It is suitable for approaching or moving away from the sealing plate 70 under the drive of the driving component. The adsorption mechanism is fixedly connected to the side of the pressure plate 43 facing the sealing plate 70.

[0044] Specifically, as shown in Figure 1, in one specific embodiment of the pressure leak testing device for beverage cans provided in this utility model, the driving component includes a second cylinder 41 and a safety valve 42. The second cylinder 41 is connected to the mounting plate 22, and the piston rod of the second cylinder 41 is connected to the pressure plate 43; the safety valve 42 is connected to the second cylinder 41.

[0045] It should be noted that the safety valve 42 is connected to the rodless chamber of the second cylinder 41 and is used to control and adjust the maximum pressure in the rodless chamber of the second cylinder 41, thereby controlling the maximum output pressure and preventing damage to the bottle body or cap.

[0046] As shown in Figure 1, in a specific embodiment of the pressure leak testing device for cans provided in this utility model, the pressure plate 43 has several grooves 44 on the side facing the sealing plate 70, so that the bottom space of the bottle body and the top space of the bottle cap can be connected with the outside, making the test more accurate.

[0047] As shown in Figure 1, in a specific embodiment of the pressure leak testing device for beverage cans provided in this utility model, the adsorption mechanism includes a negative pressure suction cup 51 and an exhaust valve 52. The negative pressure suction cup 51 is connected to the pressure plate 43 and is adapted to communicate with a negative pressure source. The exhaust valve 52 is connected to the pressure plate 43 and communicates with the negative pressure suction cup 51.

[0048] Specifically, during the test, the test frame is first raised, and then the bottle body and cap are attached to the pressure plate 43 of the clamp by the negative pressure suction cup 51. Then, the piston rod of the second cylinder 41 is extended to clamp the bottle body and cap. Then, the exhaust valve 52 is opened to release the suction state of the negative pressure suction cup 51, so as to avoid the suction force of the negative pressure suction cup 51 from affecting the test results.

[0049] As shown in Figure 1, in a specific embodiment of the can pressure testing device provided in this utility model, the pressure sensor is a pressure gauge 60, which is connected to the sealing plate 70 and is used to detect the pressure inside the can and the can lid.

[0050] Specifically, pressure sensors can also be electronic pressure sensors or other components that can detect the pressure inside the tank and its lid.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressure leak testing device for aluminum cans, characterized in that, include: The test chamber (10) is open on the top and has a drain outlet at the bottom, and is suitable for storing water inside. The test frame is located on the top of the test chamber (10). The lifting assembly is located on one side of the test chamber (10) and connected to the test chamber (10). The power output end is connected to the test frame to drive the test frame to sink into the test chamber (10) or rise from the test chamber (10). The sealing plate (70) is vertically arranged and connected to the test frame, and has an air supply interface (71). The air supply interface (71) is suitable for communicating with an air source, and one side of the sealing plate (70) is suitable for connecting to the top of the tank. The sealing plate (70) is sealed on one side and the other side is adapted to seal against the bottom of the can lid. An air passage (72) is provided in the sealing plate (70) to communicate with the air supply interface (71) and both sides of the sealing plate (70) to fill the can body and the can lid with air. Two clamps are respectively provided on both sides of the sealing plate (70), connected to the test frame, and respectively provided with an adsorption mechanism to adsorb and press the bottom of the can body and the top of the can lid respectively. A pressure sensor is connected to the test box (10) or the test frame and communicates with the air supply interface (71) to detect the pressure inside the can body and the can lid.

2. The pressure leak testing device for aluminum cans as described in claim 1, characterized in that, The test frame includes a frame (21) and two mounting plates (22). The frame (21) is a frame structure and is connected to the power output end of the lifting assembly. The two mounting plates (22) are arranged horizontally, parallel and spaced apart, and are respectively connected to the frame (21). The sealing plate (70) is located between the two mounting plates (22) and connected to the frame (21). The two clamps are respectively connected to the two mounting plates (22).

3. The pressure leak testing device for aluminum cans as described in claim 1, characterized in that, The lifting assembly includes a first cylinder (31), which is connected to the test box (10), and the piston rod of the first cylinder (31) is connected to the test frame.

4. The pressure leak testing device for aluminum cans as described in claim 3, characterized in that, The lifting assembly also includes two guide mechanisms, which are respectively located on both sides of the first cylinder (31) and connected to the test box (10) and the test frame.

5. The pressure leak testing device for aluminum cans as described in claim 4, characterized in that, Each of the guiding mechanisms includes a guide rod (32) and a plurality of guide sleeves (33), the plurality of guide sleeves (33) being connected to the test box (10) respectively, the guide rod (32) passing through the plurality of guide sleeves (33), and one end being connected to the test frame.

6. The pressure leak testing device for aluminum cans as described in claim 2, characterized in that, The clamp includes a drive assembly and a pressure plate (43). The drive assembly is connected to the mounting plate (22), and the pressure plate (43) is connected to the power output end of the drive assembly. It is adapted to move closer to or further away from the sealing plate (70) under the drive of the drive assembly. The adsorption mechanism is connected to the side of the pressure plate (43) facing the sealing plate (70).

7. The pressure leak testing device for aluminum cans as described in claim 6, characterized in that, The drive assembly includes a second cylinder (41) and a safety valve (42). The second cylinder (41) is connected to the mounting plate (22), and the piston rod of the second cylinder (41) is connected to the pressure plate (43). The safety valve (42) is connected to the second cylinder (41).

8. The pressure leak testing device for aluminum cans as described in claim 6, characterized in that, The pressure plate (43) has several grooves (44) on the side facing the sealing plate (70).

9. The pressure leak testing device for aluminum cans as described in claim 6, characterized in that, The adsorption mechanism includes a negative pressure suction cup (51) and an exhaust valve (52). The negative pressure suction cup (51) is connected to the pressure plate (43) and is adapted to communicate with a negative pressure source. The exhaust valve (52) is connected to the pressure plate (43) and communicates with the negative pressure suction cup (51).

10. The pressure leak testing device for aluminum cans as described in claim 1, characterized in that, The pressure sensor is a pressure gauge (60), which is connected to the sealing plate (70) and is used to detect the pressure inside the tank and the tank cover.

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