Tensile testing device for packaging bag

Abstract

The utility model relates to a packaging bag tensile test device which comprises a test board, an installation frame is fixedly connected to the test board, clamp assemblies are installed on the installation frame in a bilateral symmetry mode, and a first driving mechanism used for driving the clamp assemblies is installed on the installation frame. A recycling cavity with an upward opening is formed in the testing table, rotating plates are arranged on the upper side of the recycling cavity in a bilateral symmetry mode, and a smashing assembly is installed in the recycling cavity; a movable door is arranged on one side of the recycling cavity, a push plate sliding left and right is installed in the recycling cavity, and a third driving mechanism used for driving the push plate is installed in the recycling cavity. The packaging bag falls into the recovery cavity through the rotating plate after being broken, and the push plate pushes the packaging bag out of the movable door, so that full-automatic waste recovery after the test is completed is realized, technicians do not need to manually recover and clean the broken packaging bag, the operation process is simplified, and the working intensity of the technicians is effectively reduced.

Description

Technical Field

[0001] This utility model relates to packaging bags, and in particular to a packaging bag tensile strength testing device. Background Technology

[0002] Packaging bags are containers used to hold, protect, and transport various goods, and are typically made of plastic, paper, cloth, or other materials. They are widely used in many fields such as food, pharmaceuticals, daily necessities, and industrial products.

[0003] Packaging bags may be subjected to various external forces during handling, stacking, and transportation. Therefore, before the packaging bags are manufactured and shipped, the manufacturer needs to sample packaging bags from the same batch for tensile testing to assess the strength of the packaging bags under the above-mentioned usage scenarios, so as to ensure that the packaging bags will not easily break or be damaged, thereby protecting the safety of the materials inside the packaging bags.

[0004] Existing packaging bag tensile strength testing equipment typically uses clamps to fix both ends of the packaging bag and pulls it to determine its strength. After the test, damaged packaging bags need to be manually cleaned by technicians, which is quite troublesome. To address this issue, we propose a packaging bag tensile strength testing device. Utility Model Content

[0005] This invention proposes a packaging bag tensile strength testing device, which solves the above-mentioned problems existing in the use of the prior art.

[0006] The technical solution of this utility model is implemented as follows: a packaging bag tensile strength testing device includes a testing platform, a mounting frame is fixedly connected to the testing platform, clamp assemblies are symmetrically mounted on the mounting frame, and a first driving mechanism for driving the clamp assemblies is mounted on the mounting frame.

[0007] The test bench has an upward-facing recovery chamber, and rotating plates are symmetrically arranged on the upper side of the recovery chamber. A second drive mechanism for driving the rotating plates is installed on the test bench.

[0008] The recycling chamber is equipped with a pulverizing component;

[0009] A movable door is provided on one side of the recycling chamber, a push plate that slides left and right is installed inside the recycling chamber, and a third drive mechanism for driving the push plate is installed inside the recycling chamber.

[0010] A further feature of this invention is that the third drive mechanism includes a transmission screw, and the push plate is threadedly connected to the transmission screw.

[0011] A hidden groove is provided on the rear side wall of the recovery chamber, and the transmission screw is rotatably connected in the hidden groove. A No. 3 servo motor for driving the transmission screw is installed on the test bench.

[0012] A limiting rod is fixedly connected inside the recovery chamber, and the push plate is slidably connected to the limiting rod to the left and right.

[0013] A further feature of this invention is that the first driving component includes two positive and negative threaded rods, which are symmetrically arranged on the mounting bracket.

[0014] The mounting bracket is equipped with a servo motor for driving the forward and reverse threaded rods, and a synchronous belt is connected between the two forward and reverse threaded rods.

[0015] A further feature of this invention is that the clamp assembly includes a slide block, which is threadedly connected to the positive and negative threaded rods.

[0016] A base is fixedly connected to the slide, and a movable clamping plate that slides up and down is provided on the slide. A cylinder for driving the movable clamping plate is installed on the slide.

[0017] A further feature of this invention is that the second drive mechanism includes a rotary cylinder;

[0018] The rotating cylinders are symmetrically fixed on the test platform, the rotating plate is rotatably connected to the recovery chamber via a pin, and the piston rod of the rotating cylinder is fixedly connected to the pin.

[0019] A further feature of this invention is that the crushing assembly includes a first crushing roller and a second crushing roller;

[0020] Both the first crushing roller and the second crushing roller are rotatably connected to the recycling chamber. A second servo motor for driving the first crushing roller is installed on the test bench. The first crushing roller and the second crushing roller are meshed by gears.

[0021] The first crushing roller has several cutting grooves, and the second crushing roller has several cutting wheels corresponding to the cutting grooves.

[0022] A further feature of this invention is that a funnel is fixedly connected inside the recovery chamber, and the funnel is located between the rotating plate and the crushing assembly.

[0023] A negative pressure fan connected to the recovery chamber is installed at the bottom of the test bench.

[0024] In summary, the beneficial effects of this utility model are as follows:

[0025] After the packaging bag breaks, it falls into the recycling chamber through the rotating plate. The pusher pushes the packaging bag out of the movable door, thus realizing fully automatic recycling of waste after the test is completed. Technicians no longer need to manually recycle and clean the broken packaging bags, which simplifies the operation process and effectively reduces the workload of technicians.

[0026] After entering the recycling chamber, the packaging bags are cut into strips by the No. 1 and No. 2 crushing rollers, which pre-processes the packaging bags during the recycling process to facilitate subsequent recycling and reuse. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the internal structure of the recovery chamber;

[0030] Figure 3 This is a structural schematic diagram from another perspective of the present invention;

[0031] Figure 4 This is a schematic diagram of the crushing component in this utility model;

[0032] Figure 5 This is a schematic diagram of the push plate in this utility model.

[0033] The diagram is labeled as follows: 11. Test bench; 12. Mounting frame; 13. Recovery chamber; 14. Rotating plate; 15. Movable door; 16. Push plate; 17. Positive and negative threaded screws; 18. Servo motor No. 1; 19. Synchronous belt; 20. Slide; 21. Base; 23. Movable clamping plate; 24. Cylinder; 25. Rotating cylinder; 27. Pin; 28. Crushing roller No. 1; 29. ​​Crushing roller No. 2; 30. Gear; 31. Servo motor No. 2; 32. Cutting groove; 33. Cutting wheel; 34. Funnel; 35. Transmission screw; 36. Hidden groove; 37. Servo motor No. 3; 38. Limiting rod; 39. Negative pressure fan. Detailed Implementation

[0034] The following will refer to the appendix in the embodiments of this utility model. Figure 1-5The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] Example:

[0036] like Figures 1 to 5 As shown, a packaging bag tensile strength testing device includes a testing platform 11, a mounting frame 12 fixedly connected to the testing platform 11, and positive and negative threaded rods 17 symmetrically arranged on the mounting frame 12. A first servo motor 18 for driving the positive and negative threaded rods 17 is installed on the mounting frame 12. A synchronous belt 19 is connected between the two positive and negative threaded rods 17, and the first servo motor 18 drives the two positive and negative threaded rods 17 to rotate synchronously through the synchronous belt 19.

[0037] Two slide blocks 20 are symmetrically connected to the two positive and negative threaded rods 17. A base 21 is fixedly connected to the slide block 20. A movable clamping plate 23 that slides up and down is provided on the slide block 20. A cylinder 24 for driving the movable clamping plate 23 is installed on the slide block 20. Before the test begins, the technician places the left and right ends of the packaging bag on the base 21 respectively. Then, the movable clamping plate 23 moves downward under the drive of the cylinder 24 until it presses against the packaging bag, thereby fixing the left and right ends of the packaging bag. Then, the two ends of the packaging bag move to the left and right sides respectively under the drive of the slide blocks 20 until the packaging bag breaks. The technician can determine the maximum deformable range of the packaging bag by measuring the distance between the slide blocks 20.

[0038] The test bench 11 has an upward-facing recycling chamber 13. Rotating plates 14 are symmetrically arranged on the upper side of the recycling chamber 13. Two rotating cylinders 25 are symmetrically fixed on the test bench 11. The rotating plates 14 are rotatably connected to the recycling chamber 13 via pins 27. The piston rods of the rotating cylinders 25 are fixedly connected to the pins 27. After the test is completed, the movable clamp 23 releases the packaging bag, and the rotating plates 14 swing downward, so that the broken packaging bag falls into the recycling chamber 13 for recycling.

[0039] A first crushing roller 28 and a second crushing roller 29 are rotatably connected inside the recycling chamber 13. A second servo motor 31 for driving the first crushing roller 28 is installed on the test platform 11. The first crushing roller 28 and the second crushing roller 29 are meshed by gears 30. The first crushing roller 28 has several cutting grooves 32. The second crushing roller 29 has several cutting wheels 33 corresponding to the cutting grooves 32. After the packaging bag falls into the recycling chamber 13, it is rolled between the first crushing roller 28 and the second crushing roller 29 and cut into long strips of waste by the cutting wheels 33, which fall to the bottom of the recycling chamber 13. This pre-processes the packaging bag during the recycling process for subsequent recycling and reuse.

[0040] In addition, to prevent the packaging bag from falling without passing between the first crushing roller 28 and the second crushing roller 29, a funnel 34 is fixedly connected inside the recovery chamber 13. The funnel 34 is located between the rotating plate 14 and the crushing assembly. A negative pressure fan 39 connected to the recovery chamber 13 is installed at the bottom of the test platform 11. The packaging bag first falls into the funnel 34, and then the negative pressure fan 39 starts working, creating a negative pressure in the recovery chamber 13. This allows the packaging bag to fall through the outlet of the funnel 34 between the first crushing roller 28 and the second crushing roller 29, thus preventing the falling direction of the packaging bag from deviating.

[0041] A movable door 15 is hinged to one side of the recovery chamber 13. A hidden groove 36 is provided on the rear side wall of the recovery chamber 13. A transmission screw 35 is rotatably connected in the hidden groove 36. A push plate 16 that slides left and right in the recovery chamber 13 is threadedly connected to the transmission screw 35. A No. 3 servo motor 37 for driving the transmission screw 35 is installed on the test bench 11. A limit rod 38 is fixedly connected in the recovery chamber 13. The push plate 16 is slidably connected to the limit rod 38.

[0042] After the cut packaging bags fall into the bottom of the recycling chamber 13, technicians can open the movable door 15 and place the prepared recycling container outside the movable door 15. The pusher plate 16 pushes the packaging bag waste into the container outside the movable door 15 to complete the waste collection. The operation is convenient and does not require manual cleaning by technicians, reducing the workload of technicians.

[0043] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0044] 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, improvements, etc., 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 packaging bag tensile strength testing device, comprising a testing table (11), characterized in that: A mounting frame (12) is fixedly connected to the test bench (11). A clamp assembly is symmetrically mounted on the mounting frame (12). A first drive mechanism for driving the clamp assembly is mounted on the mounting frame (12). The test bench (11) has an upward-facing recovery chamber (13), and rotating plates (14) are symmetrically arranged on the upper side of the recovery chamber (13). A second drive mechanism for driving the rotating plates (14) is installed on the test bench (11). The recycling chamber (13) is equipped with a crushing component; A movable door (15) is provided on one side of the recycling chamber (13). A push plate (16) that slides left and right is installed inside the recycling chamber (13). A third drive mechanism for driving the push plate (16) is installed inside the recycling chamber (13).

2. The packaging bag tensile strength testing device according to claim 1, characterized in that: The third drive mechanism includes a transmission screw (35), and the push plate (16) is threadedly connected to the transmission screw (35); A hidden groove (36) is provided on the rear side wall of the recovery chamber (13), and the transmission screw (35) is rotatably connected in the hidden groove (36). A No. 3 servo motor (37) for driving the transmission screw (35) is installed on the test bench (11). The recovery chamber (13) is fixedly connected to a limiting rod (38), and the push plate (16) is slidably connected to the limiting rod (38) on the left and right sides.

3. The packaging bag tensile strength testing device according to claim 1, characterized in that: The first drive component includes two positive and negative threaded rods (17), which are symmetrically arranged on the mounting bracket (12). The mounting bracket (12) is equipped with a servo motor (18) for driving the positive and negative threaded rods (17), and a synchronous belt (19) is connected between the two positive and negative threaded rods (17).

4. The packaging bag tensile strength testing device according to claim 3, characterized in that: The clamp assembly includes a slide (20) which is threaded onto the positive and negative threaded screw (17); A base (21) is fixedly connected to the slide (20), and a movable clamping plate (23) that slides up and down is provided on the slide (20). A cylinder (24) for driving the movable clamping plate (23) is installed on the slide (20).

5. The packaging bag tensile strength testing device according to claim 1, characterized in that: The second drive mechanism includes a rotary cylinder (25); The rotating cylinder (25) is symmetrically fixed on the test platform (11), the rotating plate (14) is rotatably connected to the recovery chamber (13) through the pin (27), and the piston rod of the rotating cylinder (25) is fixedly connected to the pin (27).

6. The packaging bag tensile strength testing device according to claim 5, characterized in that: The crushing assembly includes a first crushing roller (28) and a second crushing roller (29); The first crushing roller (28) and the second crushing roller (29) are rotatably connected in the recycling chamber (13). The test bench (11) is equipped with a second servo motor (31) for driving the first crushing roller (28). The first crushing roller (28) and the second crushing roller (29) are meshed by gears (30). The first crushing roller (28) has several cutting grooves (32), and the second crushing roller (29) has several cutting wheels (33) corresponding to the cutting grooves (32).

7. The packaging bag tensile strength testing device according to claim 6, characterized in that: A funnel (34) is fixedly connected inside the recovery chamber (13), and the funnel (34) is located between the rotating plate (14) and the crushing component; The bottom of the test bench (11) is equipped with a negative pressure fan (39) that is connected to the recovery chamber (13).

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