Packaging material tensile strength tester
By using a damping pad with greater friction with the packaging material, the problem of slippage or breakage caused by unstable clamping force in existing technologies is solved, achieving more stable tensile strength testing.
Patent Information
- Application Number
- CN202520346705.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing tensile testing machines have difficulty controlling the clamping force when holding packaging materials, which can easily cause the packaging materials to slip or break at the clamping point, affecting the test results.
The use of first and second damping pads results in greater friction with the packaging material, ensuring stable clamping and preventing direct metal clamping. This reduces the risk of the packaging material breaking at the clamping point. The use of damping pads also provides greater friction with the packaging material, ensuring stable clamping and preventing slippage.
It improves the accuracy and stability of tensile strength testing for packaging materials, reduces the risk of packaging materials breaking at clamping points, and achieves better measurement results.
Smart Images
Figure CN223926144U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to packaging test technical field, especially relate to a kind of packaging material tensile strength tester. BACKGROUND
[0002] Many products need to be sold after packaging, and the packaging materials generally need to be tested for tensile strength. The existing method usually uses a tensile testing machine to pull the two ends of the packaging material in opposite directions. When the material breaks, the tensile force value is measured and then compared with the standard value. The existing tensile testing machine generally uses a metal clamp to hold the packaging material. The holding force of the metal clamp is not easy to control. When the holding force is small, the packaging material is easy to slip out of the clamp during the stretching process. When the holding force is too large, the packaging material may break at the clamping point, affecting the test results. SUMMARY
[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides a packaging material tensile strength tester. The first and second damping pads have a large friction with the packaging material, and the packaging material is not easy to slip out of the first and second damping pads. This avoids direct clamping of the packaging material by metal, reduces the risk of breakage of the packaging material at the clamping point during testing, and improves the measurement effect.
[0004] According to the packaging material tensile strength tester of the utility model embodiment, it comprises:
[0005] a base;
[0006] a lifting assembly mounted on the base;
[0007] a force measuring assembly connected to the lifting assembly, for measuring the tensile force;
[0008] two clamping assemblies connected to the base and the force measuring assembly respectively, the lifting assembly being used to drive one of the clamping assemblies to lift through the force measuring assembly to adjust the distance between the two clamping assemblies, the clamping assembly comprising a clamping seat, an adjusting screw, a first clamping block, a first damping pad, a second clamping block and a second damping pad, the clamping seat being provided with a first threaded hole, the adjusting screw being threadedly connected to the first threaded hole, the adjusting screw abutting against the first clamping block, the first clamping block being slidably connected to the clamping seat along the axial direction of the adjusting screw, the first clamping block and the second clamping block being spaced apart along the axial direction of the adjusting screw, the first damping pad being detachably connected to one side of the first clamping block close to the second clamping block, and the second damping pad being detachably connected to one side of the second clamping block close to the first clamping block.
[0009] According to the packaging material tensile strength tester provided by the embodiment of the utility model, at least the following beneficial effects are achieved:
[0010] The adjusting screw is screwed, the first clamping block is driven to move close to the second clamping block, the packaging material is clamped by the first damping pad and the second damping pad, and the two ends of the packaging material are clamped by the two clamping assemblies; the lifting assembly drives the clamping assembly above to ascend, and the force measuring assembly measures the tension data when the packaging material breaks.
[0011] According to some embodiments of the utility model, a plurality of insertion slots are arranged on the first clamping block in a vertical direction, a plurality of insertion protrusions are arranged on the first damping pad in a vertical direction, and the plurality of insertion protrusions are one-to-one installed in the insertion slots.
[0012] According to some embodiments of the utility model, hooks are arranged on both sides of the insertion protrusion, and the end of the hook away from the insertion protrusion is towards the opening direction of the insertion slot.
[0013] According to some embodiments of the utility model, a T-shaped slot is arranged on the clamping seat, a first T-shaped protrusion is arranged on the first clamping block, a second T-shaped protrusion is arranged on the second clamping block, the first T-shaped protrusion and the second T-shaped protrusion are slidably connected in the T-shaped slot, a counterbore for screwing is arranged on the second clamping block, a second threaded hole for screwing is arranged on the clamping seat, and the second clamping block is connected to the clamping seat by screwing.
[0014] According to some embodiments of the utility model, a spring is arranged between the first T-shaped protrusion and the second T-shaped protrusion.
[0015] According to some embodiments of the utility model, a first positioning protrusion is arranged on the first T-shaped protrusion, a second positioning protrusion is arranged on the second T-shaped protrusion, and the first positioning protrusion and the second positioning protrusion respectively extend into both ends of the spring.
[0016] According to some embodiments of the utility model, the first damping pad and the second damping pad are soft.
[0017] According to some embodiments of the present application, the first damping pad is provided with a first clamping portion and a first guide portion connected thereto, the second damping pad is provided with a second clamping portion and a second guide portion, the first clamping portion and the second clamping portion are arranged in parallel, the first guide portion and the second guide portion are used for guiding the object to enter between the first clamping portion and the second clamping portion, and the distance between the first guide portion and the second guide portion gradually increases in a direction away from the object insertion direction.
[0018] According to some embodiments of the present application, the first clamping block is provided with a positioning groove on a side away from the second clamping block for the extension of the adjusting screw.
[0019] According to some embodiments of the present application, the force measuring assembly further comprises a tension sensor, and the lifting assembly comprises a motor lead screw module, and the tension sensor and the motor lead screw module are electrically connected with the control console, and the control console is provided with a touch control screen and control buttons.
[0020] Additional aspects and advantages of the present application will be given in part in the following description. BRIEF DESCRIPTION OF DRAWINGS
[0021] The present application will be further described below in combination with the drawings and embodiments, in which:
[0022] Figure 1 It is a structural schematic view of the packaging material tensile strength tester according to the embodiments of the present application;
[0023] Figure 2 It is a structural schematic view of the clamping assembly of the packaging material tensile strength tester according to the embodiments of the present application;
[0024] Figure 3 It is a structural schematic view of the clamping seat of the packaging material tensile strength tester according to the embodiments of the present application;
[0025] Figure 4 It is a structural schematic view of the first clamping block of the packaging material tensile strength tester according to the embodiments of the present application Figure 1 ;
[0026] Figure 5 It is a structural schematic view of the first clamping block of the packaging material tensile strength tester according to the embodiments of the present application Figure 2 ;
[0027] Figure 6 It is a structural schematic view of the first damping pad of the packaging material tensile strength tester according to the embodiments of the present application.
[0028] Reference Signs:
[0029] 100. Base;
[0030] 200. Lifting assembly;
[0031] 300. Force measuring components;
[0032] 400. Clamping assembly; 410. Clamping base; 411. First threaded hole; 412. Second threaded hole; 413. T-slot; 420. Adjusting screw; 430. First clamping block; 431. Slot; 432. First T-shaped protrusion; 433. First positioning protrusion; 434. Positioning groove; 440. First damping pad; 441. Insertion protrusion; 442. Barb; 443. First clamping part; 444. First guide part; 450. Second clamping block; 460. Second damping pad; 461. Second clamping part; 462. Second guide part; 470. Spring;
[0033] 500. Control console; 510. Touch control screen; 520. Control buttons. Detailed Implementation
[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0035] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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 of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0037] Please see Figure 1 , Figure 2 and Figure 3 This utility model discloses a packaging material tensile strength tester, comprising a base 100, a lifting assembly 200, a force measuring assembly 300, and two clamping assemblies 400. The lifting assembly 200 is mounted on the base 100, and the force measuring assembly 300 is connected to the lifting assembly 200 and is used to measure tensile force. The two clamping assemblies 400 are respectively connected to the base 100 and the force measuring assembly 300, with one clamping assembly 400 connected to the force measuring assembly 300 and positioned above the other clamping assembly 400. The lifting assembly 200, through the force measuring assembly 300, drives one clamping assembly 400 to rise and fall, thereby adjusting the distance between the two clamping assemblies 400.
[0038] The clamping assembly 400 includes a clamping seat 410, an adjusting screw 420, a first clamping block 430, a first damping pad 440, a second clamping block 450, and a second damping pad 460. The clamping seat 410 has a first threaded hole 411. The adjusting screw 420 is threadedly connected to the first threaded hole 411 and abuts against the first clamping block 430. The first clamping block 430 is slidably connected to the clamping seat 410 along the axial direction of the adjusting screw 420. The first clamping block 430 and the second clamping block 450 are spaced apart along the axial direction of the adjusting screw 420. The first damping pad 440 is detachably connected to the first clamping block 430 on the side near the second clamping block 450, and the second damping pad 460 is detachably connected to the second clamping block 450 on the side near the first clamping block 430.
[0039] Tightening the adjusting bolt moves the first clamping block 430 closer to the second clamping block 450, clamping the packaging material between the first damping pad 440 and the second damping pad 460. Both ends of the packaging material are held by two clamping components 400. The lifting component 200 raises the upper clamping component 400, and the force measuring component 300 measures the tensile force data at which the packaging material breaks. The first damping pad 440 and the second damping pad 460 clamp the packaging material, resulting in significant friction between them and the packaging material. This stable clamping prevents the packaging material from slipping between the first damping pad 440 and the second damping pad 460, avoiding direct metal clamping of the packaging material and reducing the risk of breakage at the clamping point during testing. This results in better measurement performance.
[0040] In some embodiments, see Figure 2 , Figure 4 and Figure 6 The first clamping block 430 has multiple slots 431 spaced vertically, and the first damping pad 440 has multiple insertion protrusions 441 spaced vertically. Each insertion protrusion 441 is installed in a corresponding slot 431. By connecting the insertion protrusions 441 to the slots 431, the first damping pad 440 is tightly connected to the first clamping block 430. The second clamping block 450 also has slots 431, and the second damping pad 460 has insertion protrusions 441.
[0041] In some embodiments, see Figure 2 , Figure 4 and Figure 6 The insertion protrusion 441 has barbs 442 on both sides, with the end of the barb 442 away from the insertion protrusion 441 facing the opening of the slot 431. The barbs 442 on the insertion protrusion 441 prevent the insertion protrusion 441 from slipping out after being inserted into the slot 431.
[0042] In some embodiments, see Figure 2 , Figure 3 and Figure 4 The clamping base 410 is provided with a T-shaped groove 413, the first clamping block 430 is provided with a first T-shaped protrusion 432, and the second clamping block 450 is provided with a second T-shaped protrusion. The first T-shaped protrusion 432 and the second T-shaped protrusion are slidably connected within the T-shaped groove 413. The second clamping block 450 is provided with a countersunk hole, and the clamping base 410 is provided with a second threaded hole 412. The second clamping block 450 is bolted to the clamping base 410. The first T-shaped protrusion 432 and the T-shaped groove 413 cooperate to ensure the sliding connection between the first clamping block 430 and the clamping base 410, and to ensure that the first clamping block 430 will not fall off the clamping base. The second clamping block 450 and the clamping base 410 are detachably connected by bolts, which is convenient for disassembly and assembly, and can limit the movement of the first clamping block 430.
[0043] In some embodiments, see Figure 1 , Figure 2 and Figure 4 A spring 470 is disposed between the first T-shaped protrusion 432 and the second T-shaped protrusion. With the second clamping block 450 stationary, the spring 470 can push the first clamping block 430 away from the second clamping block 450. Turning the adjusting screw 420 adjusts the first clamping block 430 and the second clamping block 450 closer together, thus clamping the packaging material. After testing, turning the adjusting screw 420 in the opposite direction causes the first clamping block 430 to move away from the second clamping block 450 under the push of the spring 470, facilitating the removal of the packaging material between the first clamping block 430 and the second clamping block 450.
[0044] In some embodiments, see Figure 2 and Figure 4 The first T-shaped protrusion 432 is provided with a first positioning protrusion 433, and the second T-shaped protrusion is provided with a second positioning protrusion. The first positioning protrusion 433 and the second positioning protrusion extend into both ends of the spring 470, respectively. The first positioning protrusion 433 and the second positioning protrusion limit the two ends of the spring 470, ensuring that the pushing force of the spring 470 on the first clamping block 430 is stable.
[0045] In some embodiments, see Figure 1 and Figure 2 The first damping pad 440 and the second damping pad 460 are made of soft material. The first damping pad 440 and the second damping pad 460 are made of rubber material. When clamping the packaging material, the clamping force is stable, and the packaging material is not easy to slip off between the first damping pad 440 and the second damping pad 460. This avoids direct clamping of the packaging material by metal, reduces the risk of the packaging material breaking at the clamping point during testing, and results in better measurement results.
[0046] In some embodiments, see Figure 2 and Figure 6 The first damping pad 440 is provided with a first clamping part 443 and a first guide part 444 connected to each other, and the second damping pad 460 is provided with a second clamping part 461 and a second guide part 462. The first clamping part 443 and the second clamping part 461 are arranged in parallel. The first guide part 444 and the second guide part 462 are used to guide the object into the space between the first clamping part 443 and the second clamping part 461. The distance between the first guide part 444 and the second guide part 462 gradually increases along the direction away from the object insertion direction. The first guide part 444 and the second guide part 462 are provided to facilitate the insertion of packaging material between the first clamping part 443 and the second clamping part 461, making the measurement smoother.
[0047] In some embodiments, see Figure 2 and Figure 5The first clamping block 430 is provided with a positioning groove 434, which is located on the side of the first clamping block away from the second clamping block 450. The adjusting screw 420 extends into the positioning groove 434. The positioning groove 434 is provided for the adjusting screw 420 to extend into, so that the pushing force of the adjusting screw 420 on the first clamping block 430 is stable.
[0048] In some embodiments, see Figure 1 The packaging material tensile strength tester also includes a control console 500, which is located on one side of the lifting assembly 200. The force measuring assembly 300 includes a tensile sensor, and the lifting assembly 200 includes a motor lead screw module. The tensile sensor and the motor lead screw module are electrically connected to the control console 500. The control console 500 is equipped with a touch control screen 510 and control buttons 520. The touch control screen 510 and control buttons 520 can operate the equipment, and the touch control screen 510 displays the measurement results.
[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0050] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.
Claims
1. A packaging material tensile strength tester, characterized in that, include: Base; The lifting assembly is mounted on the base; A force measuring component is connected to the lifting component, and the force measuring component is used to measure tensile force. Two clamping assemblies are respectively connected to the base and the force measuring assembly. The lifting assembly is used to drive one of the clamping assemblies to rise and fall through the force measuring assembly to adjust the distance between the two clamping assemblies. Each clamping assembly includes a clamping seat, an adjusting screw, a first clamping block, a first damping pad, a second clamping block, and a second damping pad. The clamping seat is provided with a first threaded hole. The adjusting screw is threadedly connected to the first threaded hole and abuts against the first clamping block. The first clamping block is slidably connected to the clamping seat along the axial direction of the adjusting screw. The first clamping block and the second clamping block are spaced apart along the axial direction of the adjusting screw. The first damping pad is detachably connected to the first clamping block on the side near the second clamping block, and the second damping pad is detachably connected to the second clamping block on the side near the first clamping block.
2. The packaging material tensile strength tester according to claim 1, characterized in that, The first clamping block has multiple slots spaced apart along the vertical direction, and the first damping pad has multiple insertion protrusions spaced apart along the vertical direction. The multiple insertion protrusions are installed in the slots one by one.
3. The packaging material tensile strength tester according to claim 2, characterized in that, The plug protrusion is provided with barbs on both sides, with the end of the barb away from the plug protrusion facing the opening direction of the slot.
4. The packaging material tensile strength tester according to claim 1, characterized in that, The clamping seat is provided with a T-shaped groove, the first clamping block is provided with a first T-shaped protrusion, and the second clamping block is provided with a second T-shaped protrusion. The first T-shaped protrusion and the second T-shaped protrusion are slidably connected in the T-shaped groove. The second clamping block is provided with a countersunk hole for bolts to pass through, and the clamping seat is provided with a second threaded hole for bolt connection. The second clamping block is connected to the clamping seat by bolts.
5. A packaging material tensile strength tester according to claim 4, characterized in that, A spring is provided between the first T-shaped protrusion and the second T-shaped protrusion.
6. The packaging material tensile strength tester according to claim 5, characterized in that, The first T-shaped protrusion is provided with a first positioning protrusion, and the second T-shaped protrusion is provided with a second positioning protrusion. The first positioning protrusion and the second positioning protrusion extend into both ends of the spring, respectively.
7. The packaging material tensile strength tester according to claim 1, characterized in that, The first damping pad and the second damping pad are made of soft material.
8. A packaging material tensile strength tester according to claim 1, characterized in that, The first damping pad is provided with a first clamping part and a first guide part connected to each other, and the second damping pad is provided with a second clamping part and a second guide part. The first clamping part and the second clamping part are arranged in parallel. The first guide part and the second guide part are used to guide an object into the space between the first clamping part and the second clamping part. The distance between the first guide part and the second guide part gradually increases along the direction away from the object insertion direction.
9. A packaging material tensile strength tester according to claim 1, characterized in that, The first clamping block has a positioning groove on the side opposite to the second clamping block for the adjustment screw to extend into.
10. A packaging material tensile strength tester according to claim 1, characterized in that, It also includes a control console, which is located on one side of the lifting assembly. The force measuring assembly includes a tension sensor, and the lifting assembly includes a motor lead screw module. The tension sensor and the motor lead screw module are electrically connected to the control console, which is equipped with a touch control screen and control buttons.