A can end opening force testing device

Abstract

A kind of can cover opening force testing device, including base and the test frame installed on base;Positioning frame for positioning the can cover to be measured is installed on the base, and tension tester for detecting the tension of the can cover to be measured in real time is installed on test frame;Lifting block for controlling the lifting of tension tester is installed on the test frame, and lifting block and tension tester are synchronous lifting;Compared with prior art, by installing tension tester on test frame, the lifting of tension tester is controlled under the action of test frame, so that the opening force of tension tester when opening the can cover to be measured can be directly read, the opening force of can body is quickly obtained, and under the action of positioning hole, the placement state of positioning plate can be adjusted, so that the horizontal state or inclined state of the can cover to be measured is simulated, and the opening force of the can cover to be measured under different states is detected.

Description

Technical Field

[0001] This utility model relates to the field of opening force testing technology, specifically to a can lid opening force testing device. Background Technology

[0002] A can is a large-mouthed container used for holding things or for holding or cooking food. In daily life, aluminum cans are a common can structure, and labels or patterns are usually printed on the surface of aluminum cans to describe the contents of the can and remind people of the shelf life.

[0003] Can lids, also known as easy-open lids, are caps used to seal cans and have a pull ring. They are metal packaging products, mostly made of aluminum or tinplate, and come in various sizes. They are suitable for iron cans, aluminum cans, composite cans, PET plastic cans, and paper cans, etc.

[0004] Because cans need to hold different objects, they come in various sizes. Therefore, there are can lids that fit cans of different sizes. Can lids of different sizes have different opening forces. When the connection between the can lid and the can is tight, a large force is required to open the can lid, which affects the user experience. When the connection between the can lid and the can is loose, it affects the overall sealing of the can and poses certain storage risks.

[0005] Chinese patent CN219996763U discloses a torque testing device for easy-open lid pull rings, including a base plate. A positioning platform is fixedly installed at the top of the base plate, a fixing plate is slidably installed on the inner side of the base plate, a hydraulic rod is fixedly installed at the bottom of the fixing plate, and a directional sliding plate is slidably installed at the side end of the fixing plate. In this device, after the eccentric wheel completes one revolution, the pull rod rotates at the side end of the connecting plate, applying tension to the connecting plate and causing it to slide inward within the groove. Simultaneously, the connecting plate drives the directional sliding plate to slide into the interior of the fixing plate, releasing the pressure plate from the pull ring body. Then, by driving the hydraulic rod to extend and retract, the fixing plate is pushed upward, causing the pressure plate to move away from the top of the easy-open lid, thus completing the test of the pull ring body.

[0006] The aforementioned method of applying force to the pull ring through the cooperation of a motor, eccentric wheel, and pull rod is difficult to determine the magnitude of the applied force during the process, thus making it impossible to obtain the specific opening force to adjust the installation firmness of the can lid. In addition, the aforementioned detection device can only detect the torque of horizontally set can lids, but when users open the can lid, it is not always in a horizontally pulled state, making the detection effect too limited. Utility Model Content

[0007] The present invention aims to overcome the defects in the prior art and provide a can lid opening force testing device that is applicable to multi-state can lids and allows for the observation of opening force.

[0008] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a can lid opening force testing device, comprising a base and a test frame mounted on the base; a positioning frame for positioning the can lid to be tested is mounted on the base, and a tensioner for real-time detection of the tension force on the can lid to be tested is mounted on the test frame; a lifting block for controlling the lifting and lowering of the tensioner is mounted on the test frame, and the lifting block and the tensioner lift and lower synchronously; the positioning frame comprises a positioning plate and a positioning block for clamping the positioning plate, the positioning block having a positioning hole for adjusting the angle of the positioning plate, and the positioning plate having a positioning opening for loading the can lid to be tested.

[0009] As a preferred embodiment of this utility model, the test frame includes a guide rod and a screw arranged in parallel, both of which pass through a lifting block, and the lifting block is threadedly connected to the screw.

[0010] As a preferred embodiment of this utility model, the test frame includes two parallel guide rods, with a screw located between the two parallel guide rods, and the two guide rods located at both ends of the lifting block.

[0011] As a preferred embodiment of this utility model, the top of the test frame is provided with a support block for supporting the guide rod and the screw, and the support block is provided with a handle for manually rotating the screw.

[0012] In a preferred embodiment of this utility model, the support block and the lifting block are arranged in parallel.

[0013] As a preferred embodiment of this utility model, the base has mating holes corresponding to the guide rod and the screw, and the base is provided with a positioning sleeve for fixing the guide rod and a support bearing for supporting the rotation of the screw.

[0014] As a preferred embodiment of this utility model, the positioning frame includes two positioning blocks arranged opposite to each other, and the positioning plate is clamped between the two positioning blocks.

[0015] As a preferred embodiment of this utility model, the positioning frame includes two positioning blocks arranged opposite to each other, and the positioning plate is clamped between the two positioning blocks.

[0016] As a preferred embodiment of this utility model, the positioning hole includes a first positioning hole, a second positioning hole and a third positioning hole, and a positioning bolt connected to the positioning plate is provided in the first positioning hole, the second positioning hole or the third positioning hole.

[0017] As a preferred embodiment of this utility model, the bottom of the tensioner is provided with a hook for tightening the lid of the can to be tested.

[0018] Compared with existing technologies, by installing the tensioner on the test frame and controlling its lifting and lowering under the action of the test frame, the opening force of the tensioner when the can lid under test is opened can be directly read, which facilitates the rapid acquisition of the can opening force. At the same time, the positioning hole can be used to adjust the placement of the positioning plate, thereby simulating the horizontal or tilted state of the can lid under test, which meets the requirement of detecting the opening force of the can lid under test in different states. Attached Figure Description

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

[0020] Figure 2 This is the front view of this utility model;

[0021] Figure 3 This is a structural schematic diagram of the positioning frame;

[0022] Figure 4 This is a diagram showing the angle adjustment of the positioning plate on the positioning frame;

[0023] Reference numerals: base 1, mating hole 11, test frame 2, lifting block 21, guide rod 22, screw 23, support block 24, handle 25, positioning sleeve 26, support bearing 27, positioning frame 3, positioning block 31, positioning plate 32, positioning port 33, positioning bolt 34, tensioner 4, hook 41. Detailed Implementation

[0024] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] like Figures 1-4 As shown, a can lid opening force testing device includes a base 1 and a test frame 2 mounted on the base 1; a positioning frame 3 for positioning the can lid to be tested is mounted on the base 1, and a tensioner 4 for real-time detection of the tension force on the can lid to be tested is mounted on the test frame 2; a lifting block 21 for controlling the lifting of the tensioner 4 is mounted on the test frame 2, and the lifting block 21 and the tensioner 4 lift synchronously; the positioning frame 3 includes a positioning plate 32 and a positioning block 31 for clamping the positioning plate 32, the positioning block 31 has a positioning hole for adjusting the angle of the positioning plate 32, and the positioning plate 32 has a positioning opening 33 for loading the can lid to be tested.

[0026] The positioning frame 3 is used to install the can lid to be tested, and the test frame 2 is used to control the lifting of the tensioner 4. After the can lid to be tested is positioned by the positioning frame 3, the lifting tensioner 4 is used to open the can lid to be tested. The opening force of the can lid to be tested can be determined by observing the tension reading of the tensioner 4.

[0027] The positioning hole allows the can lid to be placed horizontally or tilted, thus simulating the opening force required to open the can lid under different conditions. At the same time, by clamping positioning plates 32 with different positioning holes 33 on the positioning block 31, the opening force detection requirements of can lids of different sizes can be met.

[0028] The test frame 2 includes a guide rod 22 and a screw 23 arranged in parallel. Both the guide rod 22 and the screw 23 pass through the lifting block 21, and the lifting block 21 is threadedly connected to the screw 23. The lifting block 21, the screw 23 and the guide rod 22 form a screw-slider structure. Under the rotation of the screw 23, the lifting block 21 moves up and down along the height direction of the guide rod 22. Thus, by controlling the lifting of the lifting block 21, the lifting of the tensioner 4 can be controlled.

[0029] The test frame 2 includes two parallel guide rods 22, and a screw 23 is located between the two parallel guide rods 22. The two guide rods 22 are located at both ends of the lifting block 21. Under the action of the two guide rods 22 located on opposite sides of the screw 23, the screw 23 is located in the middle of the overall test frame 2, ensuring that the overall test frame 2 is stable under the rotation of the screw 23, thereby ensuring the stable lifting and lowering of the tensioner 4.

[0030] The test frame 2 has a support block 24 on top for supporting the guide rod 22 and the screw 23. The support block 24 has a handle 25 for manually rotating the screw 23. The handle 25 is connected to the end of the screw 23. Under the action of the handle 25, the screw 23 is rotated, thereby driving the lifting block 21 and the tensioner 4 to rise and fall synchronously.

[0031] The support block 24 is set parallel to the lifting block 21. The lifting block 21 remains in a parallel state during the lifting process to ensure the stable lifting of the lifting block 21.

[0032] The base 1 has mating holes 11 corresponding to the guide rod 22 and the screw 23. The base 1 is also provided with a positioning sleeve 26 for fixing the guide rod 22 and a support bearing 27 for supporting the rotation of the screw 23. The positioning sleeve 26 and the support bearing 27 are used to support the guide rod 22 and the screw 23 in a vertical state.

[0033] The positioning frame 3 includes two positioning blocks 31 arranged opposite each other, and the positioning plate 32 is clamped between the two positioning blocks 31. The positioning holes include a first positioning hole 35, a second positioning hole 36 and a third positioning hole 37. The first positioning hole 35, the second positioning hole 36 or the third positioning hole 37 is provided with a positioning bolt 34 connected to the positioning plate 32. The first positioning hole 35 and the second positioning hole 36 are at the same height, and the third positioning hole 37 is located below the first positioning hole 35.

[0034] When both the first positioning hole 35 and the second positioning hole 36 are provided with positioning bolts 34 connected to the positioning plate 32, the positioning plate 32 is in a horizontal state because the first positioning hole 35 and the second positioning hole 36 are at the same height, and the horizontal can cover can be tested.

[0035] When both the second positioning hole 36 and the third positioning hole 37 are equipped with positioning bolts 34 that are connected to the positioning plate 32, the positioning plate 32 is in an inclined state because the third positioning hole 37 is located below the first positioning hole 35, which enables the detection of the tilted can lid.

[0036] The bottom of the tensioner 4 is equipped with a hook 41 for tightening the lid of the can to be tested.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0038] Although this document frequently uses reference numerals from the figures, such as base 1, mating hole 11, test frame 2, lifting block 21, guide rod 22, screw 23, support block 24, handle 25, positioning sleeve 26, support bearing 27, positioning frame 3, positioning block 31, positioning plate 32, positioning port 33, positioning bolt 34, tensioner 4, and hook 41, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A can end opening force testing device comprising a base (1) and a testing frame (2) mounted on the base (1); characterized in that, The base (1) is equipped with a positioning frame (3) for positioning the can lid to be tested, and the test frame (2) is equipped with a tensioner (4) for real-time detection of the tension on the can lid to be tested; the test frame (2) is equipped with a lifting block (21) for controlling the lifting of the tensioner (4), and the lifting block (21) and the tensioner (4) are raised and lowered synchronously; the positioning frame (3) includes a positioning plate (32) and a positioning block (31) for clamping the positioning plate (32), the positioning block (31) has a positioning hole for adjusting the angle of the positioning plate (32), and the positioning plate (32) has a positioning port (33) for loading the can lid to be tested.

2. A can end pop force testing apparatus as defined in claim 1 wherein, The test frame (2) includes a guide rod (22) and a screw (23) arranged in parallel. Both the guide rod (22) and the screw (23) pass through the lifting block (21), and the lifting block (21) is threadedly connected to the screw (23).

3. A can end pop force testing apparatus as defined in claim 2 wherein, The test frame (2) includes two parallel guide rods (22), a screw (23) is located between the two parallel guide rods (22), and the two guide rods (22) are located at both ends of the lifting block (21).

4. A can end pop force testing apparatus as defined in claim 2 wherein, The test frame (2) has a support block (24) on top for supporting the guide rod (22) and the screw (23), and the support block (24) has a handle (25) for manually rotating the screw (23).

5. A can end pop force testing apparatus as defined in claim 4 wherein, The support block (24) is arranged in parallel with the lifting block (21).

6. A can end pop force testing apparatus as defined in claim 2 wherein, The base (1) has mating holes (11) corresponding to the guide rod (22) and the screw (23), and the base (1) is provided with a positioning sleeve (26) for fixing the guide rod (22) and a support bearing (27) for supporting the rotation of the screw (23).

7. A can end pop force testing apparatus as defined in claim 1 wherein, The positioning frame (3) includes two positioning blocks (31) arranged opposite to each other, and the positioning plate (32) is clamped between the two positioning blocks (31).

8. A can end pop force testing apparatus as defined in claim 1 wherein, The positioning holes include a first positioning hole (35), a second positioning hole (36) and a third positioning hole (37), and a positioning bolt (34) connected to the positioning plate (32) is provided in the first positioning hole (35), the second positioning hole (36) or the third positioning hole (37).

9. A can end pop force testing apparatus as defined in claim 8 wherein, The first positioning hole (35) and the second positioning hole (36) are at the same height, and the third positioning hole (37) is located below the first positioning hole (35).

10. A can end pop force testing apparatus as defined in claim 1 wherein, The bottom of the tensioner (4) is provided with a hook (41) for tightening the lid of the can to be tested.

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