A fixture for testing the compression strength of a bottle cap

Abstract

The application discloses a bottle cap compression strength test clamp, and relates to the field of bottle cap compression strength test, which comprises a case, a top plate, a supporting assembly and a clamping assembly. The electric push rod drives the connecting block to move downwards, thereby driving the rotating rod to rotate, and then the moving plate and the connecting rod drive the clamping plate to move inwards, so that the soft clamping block clamps the bottle cap. The clamp can clamp bottle caps with different diameters. When the electric push rod drives the connecting block to move downwards, the fixed block is driven to move, so that the fixed block drives the transmission rod to rotate under the limiting action of the limiting disc, thereby driving the movable base to rise, and driving the bottle cap placed on the supporting disc to rise. The supporting disc can also be rotated to drive the threaded rod to rise in the threaded sleeve, thereby driving the bottle cap to rise through the supporting disc, avoiding the influence of the compression test caused by the top of the bottle cap being lower than the top of the clamping plate, and adapting to bottle caps with different heights.

Description

Technical Field

[0001] This utility model relates to the field of bottle cap compressive strength testing technology, and in particular to a fixture for testing bottle cap compressive strength. Background Technology

[0002] The bottle cap compressive strength test is a physical performance test used to evaluate the ability of a bottle cap to resist vertical pressure. This test is commonly used to evaluate the performance of plastic, metal, or other bottle caps under pressure to ensure that they can protect the product inside the bottle from damage during transportation and storage.

[0003] During testing, the bottle cap under test is typically placed upside down on a flat, rigid pressure plate or base. That is, the printed side of the bottle cap faces down and the shoulder faces up. Then, the upper pressure plate begins to move downward, compressing the bottle cap at a constant, pre-set speed. Sensors collect pressure information to plot a "load-displacement" curve, which visually displays the relationship between force changes and deformation throughout the entire process from the start of compression to the final failure of the bottle cap.

[0004] Existing testing devices typically place bottle caps directly on a flat plate or use a base with grooves. However, such clamping methods are not conducive to pressure testing of bottle caps. When the bottle cap is subjected to pressure, it will shift, which will lead to a large deviation in the results of each test and affect the test results. Furthermore, using a base cannot accommodate bottle caps of different sizes, making it inconvenient to use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a fixture for testing the compressive strength of bottle caps.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a fixture for testing the compressive strength of bottle caps, including a chassis, a top plate provided on the top of the chassis, a support component provided inside the top plate, and a clamping component provided inside the chassis;

[0009] The clamping assembly includes a connecting block disposed inside the chassis. Several rotating rods are hinged to the outer surface of the connecting block. A movable plate is hinged to the top of the rotating rod. A connecting rod is fixedly connected to the upper surface of the movable plate. A clamping plate is fixedly connected to the connecting rod through the interior of the top plate.

[0010] The support assembly includes a fixed block that is fixedly installed on the upper surface of the connecting block. A movable base is movably connected inside the top plate. A threaded sleeve is fixedly connected inside the movable base. A threaded rod is engaged inside the threaded sleeve. A support plate is fixedly connected to the top of the threaded rod. A transmission rod is hinged to the lower surface of the movable base and the outer surface of the fixed block. The upper transmission rod is hinged to the adjacent end of the lower transmission rod.

[0011] In a preferred embodiment of the bottle cap compressive strength test fixture of this utility model, an electric push rod is fixedly installed inside the chassis, and the output end of the electric push rod is fixedly connected to the lower surface of the connecting block.

[0012] As a preferred embodiment of the bottle cap compressive strength test fixture of this utility model, the top plate has a rectangular through groove that cooperates with the connecting rod. The top of the connecting rod passes through the inside of the rectangular through groove and is fixedly connected to the inside of the clamping plate. The bottom of the clamping plate is provided with a limiting protrusion, and the upper surface of the top plate is provided with a limiting groove that cooperates with the limiting protrusion.

[0013] In a preferred embodiment of the bottle cap compressive strength test fixture of this utility model, a flexible clamping block is fixedly connected to the inner side of the clamping plate.

[0014] As a preferred embodiment of the bottle cap compressive strength test fixture of this utility model, a plurality of fixing rods are fixedly connected to the lower surface of the top plate, a limiting plate is fixedly connected to the bottom end of the fixing rod, a protrusion is provided through the hinge part of the transmission rod, and a limiting groove that cooperates with the protrusion is provided inside the limiting plate.

[0015] As a preferred embodiment of the bottle cap compressive strength test fixture of this utility model, the outer surface of the movable base is provided with a flat key, the interior of the top plate is provided with a through hole that mates with the movable base, and the inner wall of the through hole is provided with a keyway that mates with the flat key.

[0016] (III) Beneficial Effects

[0017] This utility model provides a fixture for testing the compressive strength of bottle caps. It has the following beneficial effects:

[0018] 1. The electric push rod drives the connecting block to move downward, thereby driving the rotating rod to rotate. This, in turn, drives the clamping plate to retract through the moving plate and the connecting rod, thus enabling the soft clamping block on the outer surface of the clamping plate to clamp the bottle cap. This method can accommodate bottle caps of different diameters.

[0019] 2. While the electric push rod moves the connecting block downward, it also moves the fixed block. This causes the fixed block to rotate the transmission rod under the limiting action of the limiting plate, which in turn causes the movable base to rise. This, in turn, causes the bottle cap placed on the support plate to rise. The support plate can also be rotated to cause the threaded rod to rise inside the threaded sleeve. This allows the bottle cap to be lifted by the support plate, preventing the top of the bottle cap from being lower than the top of the clamping plate, which would affect the pressure resistance test. This method can accommodate bottle caps of different heights and sizes. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the internal structure of the chassis of this utility model.

[0023] Figure 3 This is an exploded structural diagram of the clamping component of this utility model.

[0024] Figure 4 This is an exploded structural diagram of the support component of this utility model.

[0025] In the diagram, 1 is the chassis; 2 is the top plate; 3 is the clamping assembly; 301 is the electric push rod; 302 is the connecting block; 303 is the rotating rod; 304 is the moving plate; 305 is the connecting rod; 306 is the clamping plate; 307 is the flexible clamping block; 4 is the support assembly; 401 is the fixing block; 402 is the transmission rod; 403 is the fixing rod; 404 is the limiting plate; 405 is the movable base; 406 is the threaded sleeve; 407 is the threaded rod; and 408 is the support plate. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] Example 1

[0028] Reference Figure 1 , Figure 2 and Figure 3This is the first embodiment of the present utility model. This embodiment provides a fixture for testing the compressive strength of bottle caps, including a housing 1, a top plate 2 on the top of the housing 1, a support component 4 inside the top plate 2, and a clamping component 3 inside the housing 1.

[0029] The clamping assembly 3 includes a connecting block 302 disposed inside the chassis 1. Several rotating rods 303 are hinged to the outer surface of the connecting block 302. A movable plate 304 is hinged to the top of the rotating rods 303. A connecting rod 305 is fixedly connected to the upper surface of the movable plate 304. A clamping plate 306 is fixedly connected to the connecting rod 305 through the interior of the top plate 2.

[0030] Specifically, an electric push rod 301 is fixedly installed inside the chassis 1, and the output end of the electric push rod 301 is fixedly connected to the lower surface of the connecting block 302.

[0031] Specifically, the top plate 2 has a rectangular through groove that mates with the connecting rod 305. The top of the connecting rod 305 passes through the inside of the rectangular through groove and is fixedly connected to the inside of the clamping plate 306. The bottom of the clamping plate 306 is provided with a limiting protrusion. The upper surface of the top plate 2 is provided with a limiting slide groove that mates with the limiting protrusion. Through the cooperation between the rectangular through groove and the connecting rod 305, and the cooperation between the limiting slide groove and the limiting protrusion, the clamping plate 306 can move radially, thus preventing the clamping plate 306 from shifting or misaligning.

[0032] Specifically, a flexible clamping block 307 is fixedly connected to the inner side of the clamping plate 306. The flexible clamping block 307 can be used to clamp the bottle cap. By using a flexible material, the bottle cap is prevented from deforming during the clamping process, which would affect the pressure resistance test results.

[0033] Furthermore, the electric push rod 301 drives the connecting block 302 to move downward, thereby driving the rotating rod 303 to rotate. In turn, the moving plate 304 and the connecting rod 305 drive the clamping plate 306 to retract inward, thereby enabling the soft clamping block 307 on the outer surface of the clamping plate 306 to clamp the bottle cap.

[0034] Example 2

[0035] Reference Figure 1 , Figure 2 and Figure 4This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The support component 4 includes a fixed block 401 fixedly installed on the upper surface of the connecting block 302. A movable base 405 is movably connected inside the top plate 2. A threaded sleeve 406 is fixedly connected inside the movable base 405. A threaded rod 407 is engaged inside the threaded sleeve 406. A support plate 408 is fixedly connected to the top of the threaded rod 407. A transmission rod 402 is hinged to the lower surface of the movable base 405 and the outer surface of the fixed block 401. The upper transmission rod 402 is hinged to the adjacent end of the lower transmission rod 402.

[0036] Specifically, several fixing rods 403 are fixedly connected to the lower surface of the top plate 2. The bottom end of the fixing rod 403 is fixedly connected to a limiting plate 404. A protrusion is provided through the hinge part of the transmission rod 402. The limiting plate 404 has a limiting groove that cooperates with the protrusion. By limiting the protrusion with the limiting plate 404, the transmission rod 402 can drive the movable base 405 to rise normally when it rotates.

[0037] Specifically, the outer surface of the movable base 405 is provided with a flat key, and the inside of the top plate 2 is provided with a through hole that matches the movable base 405. The inner wall of the through hole is provided with a keyway that matches the flat key. By setting the flat key, the movable base 405 is prevented from rotating and is limited to moving only up and down.

[0038] Furthermore, while the electric push rod 301 drives the connecting block 302 to move downward, it also drives the fixed block 401 to move. This causes the fixed block 401 to drive the transmission rod 402 to rotate under the limiting action of the limiting plate 404, thereby driving the movable base 405 to rise. This, in turn, drives the bottle cap placed on the support plate 408 to rise. After the clamping plate 306 clamps the bottle cap, it is observed whether the top of the bottle cap exceeds the clamping plate 306. If it does not exceed the clamping plate 306, the support plate 408 is rotated, thereby driving the threaded rod 407 to rise inside the threaded sleeve 406. This achieves the goal of driving the bottle cap to rise through the support plate 408, preventing the top of the bottle cap from being lower than the top of the clamping plate 306, which would affect the pressure resistance test.

[0039] Working principle: When testing the compressive strength of bottle caps, for random sampling of bottle caps of the same specifications from the same batch, one bottle cap is first taken out and the size of the clamp is adjusted. The bottle cap is placed on the support plate 408, and then the electric push rod 301 is activated. The electric push rod 301 drives the connecting block 302 to move downward, thereby driving the rotating rod 303 to rotate. This, in turn, drives the clamping plate 306 to retract through the moving plate 304 and the connecting rod 305, thereby causing the soft clamping block 307 on the outer surface of the clamping plate 306 to clamp the bottle cap. At the same time, the electric push rod 301 drives the connecting block 302 to move downward, thereby driving the fixed block 401 to move, which in turn drives the transmission... The moving rod 402 rotates under the limiting action of the limiting plate 404, thereby driving the movable base 405 to rise, which in turn drives the bottle cap placed on the support plate 408 to rise. After the clamping plate 306 clamps the bottle cap, it is observed whether the top of the bottle cap exceeds the clamping plate 306. If it does not exceed the clamping plate 306, the support plate 408 is rotated, thereby driving the threaded rod 407 to rise inside the threaded sleeve 406, thus realizing the lifting of the bottle cap by the support plate 408, avoiding the top of the bottle cap being lower than the top of the clamping plate 306, which would affect the pressure resistance test. After the adjustment is completed, the same steps are followed to adjust the bottle cap that needs to be tested for pressure resistance.

[0040] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A fixture for testing the compressive strength of bottle caps, comprising a housing (1), characterized in that: The top of the chassis (1) is provided with a top plate (2), the top plate (2) is provided with a support component (4), and the chassis (1) is provided with a clamping component (3). The clamping assembly (3) includes a connecting block (302) disposed inside the chassis (1). Several rotating rods (303) are hinged to the outer surface of the connecting block (302). A moving plate (304) is hinged to the top of the rotating rods (303). A connecting rod (305) is fixedly connected to the upper surface of the moving plate (304). A clamping plate (306) is fixedly connected to the connecting rod (305) through the interior of the top plate (2). The support assembly (4) includes a fixed block (401) fixedly installed on the upper surface of the connecting block (302). The top plate (2) is movably connected to a movable base (405). The movable base (405) is fixedly connected to a threaded sleeve (406). The threaded sleeve (406) is meshed with a threaded rod (407). The top of the threaded rod (407) is fixedly connected to a support plate (408). The lower surface of the movable base (405) and the outer surface of the fixed block (401) are both hinged with transmission rods (402). The upper transmission rod (402) is hinged to the adjacent end of the lower transmission rod (402).

2. The fixture for testing the compressive strength of bottle caps according to claim 1, characterized in that: An electric push rod (301) is fixedly installed inside the chassis (1), and the output end of the electric push rod (301) is fixedly connected to the lower surface of the connecting block (302).

3. The fixture for testing the compressive strength of bottle caps according to claim 2, characterized in that: The top plate (2) has a rectangular through groove that matches the connecting rod (305). The top of the connecting rod (305) passes through the inside of the rectangular through groove and is fixedly connected to the inside of the clamping plate (306). The bottom of the clamping plate (306) is provided with a limiting protrusion. The upper surface of the top plate (2) is provided with a limiting slide groove that matches the limiting protrusion.

4. A fixture for testing the compressive strength of bottle caps according to claim 3, characterized in that: A flexible clamping block (307) is fixedly connected to the inner side of the clamping plate (306).

5. A fixture for testing the compressive strength of bottle caps according to claim 4, characterized in that: The lower surface of the top plate (2) is fixedly connected with several fixing rods (403), and the bottom end of the fixing rods (403) is fixedly connected with a limiting plate (404). The hinge part of the transmission rod (402) is provided with a protrusion, and the limiting plate (404) has a limiting groove that cooperates with the protrusion inside.

6. A fixture for testing the compressive strength of bottle caps according to claim 5, characterized in that: The outer surface of the movable base (405) is provided with a flat key, and the interior of the top plate (2) is provided with a through hole that matches the movable base (405), and the inner wall of the through hole is provided with a keyway that matches the flat key.

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