Compression resistance testing device for buffering air bubble film for packaging

Abstract

The utility model discloses a pressure resistance testing device for a buffer air bubble film for packaging, which relates to the technical field of production and detection of the buffer air bubble film and comprises a counterweight base and a frame, a fixed die holder is fixedly connected to a lower table top of the frame, a movable die sleeve is detachably sleeved on the fixed die holder, and a pressure resistance testing device for the buffer air bubble film for packaging is arranged on the movable die sleeve. The upper table top of the rack is movably connected with a test rod which is vertically distributed, the bottom of the test rod is detachably provided with a tip, the middle part of the test rod is provided with a circular truncated cone, a long spiral spring which is sleeved on the test rod is arranged between the circular truncated cone and the bottom of the upper table top, and a support spring which is sleeved on the test rod is arranged between the test rod and the top of the upper table top. According to the utility model, an air bubble film sample is fixed and positioned after being unfolded by buckling the fixed die holder and the movable die sleeve, the test rod releases downward pressure to impact the air bubble film sample under the elasticity of the long spiral spring after being manually lifted, and the tip can be mounted on the test rod, so that the impact resistance and puncture resistance of the air bubble film can be detected.

Description

Technical Field

[0001] This utility model relates to the field of production and testing technology of bubble wrap, specifically a pressure resistance testing device for bubble wrap used in packaging. Background Technology

[0002] Bubble wrap is a packaging material widely used for packaging electronic products, circuit boards, glass products, ceramic products, and precision instruments. It is the most commonly used cushioning packaging, with excellent cushioning performance due to its unique bubble structure. Each bubble unit can absorb and disperse impact energy.

[0003] During the manufacturing process, the compressive strength of bubble wrap needs to be tested and evaluated to ensure product quality. In logistics, packaging often needs to withstand pressure from goods above, as well as unexpected vibrations, impacts, or punctures from sharp objects during loading and unloading. From a practical application perspective, simple pulling and pressing tests are insufficient to comprehensively assess the quality of bubble wrap. Therefore, to address these issues, we provide a compressive strength testing device for packaging bubble wrap. Utility Model Content

[0004] The purpose of this invention is to provide a pressure resistance testing device for packaging bubble wrap, which solves the problem of pressure resistance testing of bubble wrap in the directions of pressure and puncture force.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure resistance testing device for packaging bubble wrap, comprising a counterweight base and a frame. The counterweight base is fixed to the bottom of the frame. A fixed mold base is fixedly connected to the lower platform of the frame. The fixed mold base has openings at the top and both sides. A movable mold sleeve is detachably fitted onto the fixed mold base. The movable mold sleeve has openings at the top and four sides, and pressure plates are provided on the four sides of the movable mold sleeve. Vertically distributed test rods are movably connected to the upper platform of the frame. A pointed tip is detachably installed at the bottom of the test rod. A frustum is provided in the middle of the test rod, and a long spiral spring fitted onto the test rod is provided between the frustum and the bottom of the upper platform. A support spring fitted onto the test rod is provided between the test rod and the top of the upper platform.

[0006] Preferably, the frame is a C-shaped bracket.

[0007] Preferably, locking bolts are provided on the pressing plates on the left and right sides of the movable mold sleeve to lock it to the fixed mold base.

[0008] Preferably, the opening at the top of the movable mold sleeve and the opening at the top of the fixed mold base are vertically aligned, and the diameters of both the openings at the top of the movable mold sleeve and the top of the fixed mold base are larger than the diameter of the test rod.

[0009] Preferably, the upright plate of the frame has an opening on its side, and a locking pin is rotatably connected to the opening on the horizontal plane, so that the rising truncated cone of the test rod abuts against the locking pin and is locked.

[0010] Preferably, the test rod is T-shaped, and the tip is threaded onto the bottom of the test rod.

[0011] This utility model has the following beneficial effects:

[0012] This invention utilizes a fixed mold base, a movable mold sleeve, a test rod, a tip, a long helical spring, and a support spring integrated on a frame to perform a compression test on bubble wrap. The fixed mold base and the movable mold sleeve engage to unfold and fix the bubble wrap sample. The test rod, after being manually lifted, releases downward pressure under the elasticity of the long helical spring to impact the bubble wrap sample. A tip can be installed on the test rod to test the impact resistance and puncture resistance of the bubble wrap. This device is simple to operate, requires no electrical equipment, is easy to maintain, and provides excellent results in testing the compression resistance of bubble wrap. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model;

[0014] Figure 2 This is a front view of the present utility model;

[0015] Figure 3 A schematic diagram of the structure of the movable sleeve of the long helical spring in its retracted state, viewed from the open perspective.

[0016] Figure 4 This is a schematic diagram of the structure of the movable sleeve in the retracted state of the long helical spring of this utility model, viewed from the second perspective.

[0017] In the diagram: 1. Counterweight base; 2. Frame; 21. Locking pin; 3. Fixed mold base; 4. Movable mold sleeve; 41. Pressing edge panel; 42. Locking bolt; 5. Test rod; 51. Frustum; 6. Tip; 7. Long helical spring; 8. Support spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-4As shown, this utility model provides a technical solution: a pressure resistance testing device for packaging bubble wrap, including a counterweight base 1 and a frame 2. The frame 2 is a C-shaped bracket. The counterweight base 1 is fixed to the bottom of the frame 2. A fixed mold base 3 is fixedly connected to the lower platform of the frame 2. The fixed mold base 3 has openings on the top and both sides. A movable mold sleeve 4 is detachably fitted on the fixed mold base 3. The movable mold sleeve 4 has openings on the top and four sides. The openings on the top of the movable mold sleeve 4 and the openings on the top of the fixed mold base 3 are vertically aligned. The diameters of the openings on the top of the movable mold sleeve 4 and the openings on the top of the fixed mold base 3 are both larger than the diameter of the test rod 5. The movable mold sleeve 4 has pressing plates 41 on its four sides. Locking bolts 42 are provided on the pressing plates 41 on the left and right sides of the movable mold sleeve 4 to lock it onto the fixed mold base 3.

[0020] Vertically distributed test rods 5 are movably connected to the upper platform of the frame 2. The bottom of the test rod 5 is detachably equipped with a tip 6. The test rod 5 is T-shaped. The tip 6 is threadedly installed at the bottom of the test rod 5. A frustum 51 is provided in the middle of the test rod 5. A long spiral spring 7 is provided between the frustum 51 and the bottom of the upper platform and is fitted on the test rod 5. A support spring 8 is provided between the test rod 5 and the top of the upper platform and is fitted on the test rod 5. An opening is provided on the side of the upright plate of the frame 2. A locking pin 21 is rotatably connected to the opening of the upright plate of the frame 2 on the horizontal plane. The frustum 51 of the test rod 5 abuts against the locking pin 21 and locks it. After the test rod 5 rises, it is fixed at a high position for easy disassembly and installation of the movable mold sleeve 4.

[0021] During operation, the bubble wrap sample is cut into strips and laid on top of the fixed mold base 3. The movable mold sleeve 4 is placed over the fixed mold base 3 and locked with locking bolts 42 to press and fix the bubble wrap sample, ensuring that the bubble wrap sample is stretched and unfolded on one side of the opening area at the top of the fixed mold base 3. The long side of the bubble wrap sample extends out of the openings on both sides of the movable mold sleeve 4. The pressing panel 41 serves to press the four corners of the bubble wrap sample on the top of the fixed mold base 3. After the bubble wrap sample is installed and pressed, the test rod 5 can be manually lifted to the highest point, the long spiral spring 7 is compressed, and then the test rod 5 is released, so that the test rod 5 impacts the bubble wrap sample downward. After the test is completed, the state of the bubble wrap sample is checked.

[0022] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the compression resistance of bubble wrap for packaging, characterized in that: The machine includes a counterweight base (1) and a frame (2). The counterweight base (1) is fixed to the bottom of the frame (2). A fixed mold base (3) is fixedly connected to the lower platform of the frame (2). The fixed mold base (3) has openings on the top and both sides. A movable mold sleeve (4) is detachably fitted on the fixed mold base (3). The movable mold sleeve (4) has openings on the top and four sides. The movable mold sleeve (4) has pressure plates (41) on the four sides. A vertically distributed test rod (5) is movably connected to the upper platform of the frame (2). A tip (6) is detachably installed at the bottom of the test rod (5). A frustum (51) is provided in the middle of the test rod (5). A long spiral spring (7) fitted on the test rod (5) is provided between the frustum (51) and the bottom of the upper platform. A support spring (8) fitted on the test rod (5) is provided between the test rod (5) and the top of the upper platform.

2. The packaging bubble wrap compression resistance testing device according to claim 1, characterized in that: The frame (2) is a C-type bracket.

3. The packaging bubble wrap compression resistance testing device according to claim 1, characterized in that: Locking bolts (42) are provided on the pressing panels (41) on the left and right sides of the movable mold sleeve (4) to lock it onto the fixed mold base (3).

4. The packaging bubble wrap compression resistance testing device according to claim 1, characterized in that: The opening at the top of the movable mold sleeve (4) and the opening at the top of the fixed mold base (3) are vertically aligned, and the diameters of the openings at the top of the movable mold sleeve (4) and the fixed mold base (3) are both larger than the diameter of the test rod (5).

5. The packaging bubble wrap compression resistance testing device according to claim 1, characterized in that: The side of the upright plate of the frame (2) is provided with an opening, and a locking pin (21) is rotatably connected to the opening of the upright plate of the frame (2) on the horizontal plane. The truncated cone (51) of the test rod (5) abuts against the locking pin (21) and is locked.

6. The packaging bubble wrap compression resistance testing device according to claim 1, characterized in that: The test rod (5) is T-shaped, and the tip (6) is threaded onto the bottom of the test rod (5).

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