Device for detecting tensile property of fresh-keeping packaging bag

Abstract

The utility model relates to the technical field of fresh-keeping packaging bag detection, and discloses a fresh-keeping packaging bag tensile strength detection device which comprises a workbench, the surface of one end of the workbench is slidably connected with two mounting plates, the surface of one end of each mounting plate is fixedly connected with a first motor, and the output end of each first motor is fixedly connected with a threaded pipe. The outer wall of the threaded pipe is connected with a sliding pipe through threads, the sliding pipe is slidably connected with the surface of one end of the workbench, two second rotating plates are rotatably connected to the two sides of the sliding pipe, a first connecting plate is rotatably connected to one side of the surface of one end of each second rotating plate, and two fixing columns are fixedly connected to the surface of one end of the mounting plate. The end, away from the fixing column, of the first rotating plate is rotationally connected to the middle of the second rotating plate. According to the fresh-keeping packaging bag clamping device, through the arrangement of the first motor, the threaded pipe and the clamping plate, fresh-keeping packaging bags can be automatically clamped, manual adjustment is not needed, the working intensity is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh-keeping packaging bag detection, in particular to a detection device for the tensile resistance of fresh-keeping packaging bags. Background Art

[0002] Fresh-keeping packaging bags are plastic bags used to preserve food. They are usually used to store and package food to extend its shelf life. Fresh-keeping packaging bags are widely used in daily life and can be used to store various foods, such as vegetables, fruits, meat, etc., to help extend their shelf life and reduce food waste. When using fresh-keeping packaging bags, you should choose the appropriate packaging bags according to the type of food and the preservation requirements, and seal them correctly to ensure the freshness and safety of the food.

[0003] After searching, a plastic packaging bag anti-stretching detection device is disclosed in the announcement number: CN219179076U, which relates to the technical field of plastic packaging bag detection, including a bottom plate, which is U-shaped; a movable plate, which is movably arranged between two opposite side walls of the bottom plate; a first positioning plate, which is fixedly connected to the movable plate; a pressure sensor, which is fixedly connected to one side of the first positioning plate; a pull plate, which is U-shaped, and two opposite side walls slide through the first positioning plate; a support plate, which is fixedly connected to two opposite side walls of the pull plate; a plurality of hook assemblies, which are respectively arranged on the support plate; a mounting plate, which is fixedly connected to one side wall of the bottom plate; a second positioning plate, which is U-shaped, and is fixedly connected to one side of the mounting plate facing the support plate; a clamping assembly, which is arranged on two opposite side walls of the second positioning plate; the present application has the advantages of easy use and high safety.

[0004] The clamping assembly provided in the above application and the traditional clamping assembly both require manual adjustment by the experimenter, which increases the workload and reduces the work efficiency. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a device for detecting the tensile strength of fresh-keeping packaging bags, aiming to improve the problem of low working efficiency caused by the need to manually adjust the clamps when clamping the fresh-keeping bags.

[0006] The cam is connected to the second end of the second motor by a threaded connection, and the second end of the second motor is connected to the second motor by a threaded connection.

[0007] Preferably, the moving assembly includes a second motor, a first screw rod, a second screw rod, a screw rod joint, a sliding rod, a skateboard and a connecting column. The inner outer wall of the workbench is fixedly connected to the second motor, the output end of the second motor is fixedly connected to the first screw rod, the other end of the first screw rod is fixedly connected to the second screw rod through a screw rod joint, the outer walls of the first screw rod and the second screw rod are respectively connected to a skateboard through threads, the other ends of the two skateboards are inserted inside the sliding rod, the skateboard is slidably connected to the sliding rod, one end of the sliding rod is fixedly connected to the outer wall of one end of the workbench, one end surface of the skateboard is fixedly connected to the connecting column, and the other end of the connecting column is fixedly connected to one end surface of the mounting plate.

[0008] Preferably, one end surface of one of the mounting plates is fixedly connected to a laser rangefinder, and one end surface of the other mounting plate is fixedly connected to a tension sensor.

[0009] Preferably, the inner outer wall of the workbench is fixedly connected to the second connecting plate, the output end of the second motor passes through the second connecting plate, and one end of the second screw rod is rotatably connected to the outer wall of one end of the workbench.

[0010] Preferably, two limiting grooves are provided in the middle of one end surface of the workbench, and connecting columns are arranged inside the limiting grooves.

[0011] Preferably, four supporting legs are fixedly connected to the end surface of the workbench away from the mounting plate.

[0012] Preferably, the second motor and the sliding rod are both arranged in the cavity.

[0013] Preferably, anti-slip teeth are provided on one end surface of the clamping plate.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, through the arrangement of the first motor, the threaded tube and the clamping plate, the first motor rotates to drive the threaded tube to rotate, thereby driving the sliding tube to move on the threaded tube. Since the second rotating plate is rotatably connected with the threaded tube and the first connecting plate, the clamping plate can move left and right, so that the fresh-keeping packaging bag can be automatically clamped without manual adjustment, thereby reducing work intensity and improving work efficiency.

[0016] 2. In the utility model, through the setting of the moving component, the second motor rotates to drive the first screw rod and the second screw rod to rotate, so that the two slides can move relatively on the first screw rod and the second screw rod respectively, and the sliding rod can ensure the stable operation of the slide plate, so that the two mounting plates can move relatively. Compared with the traditional guide rail, this setting has the advantages of higher transmission accuracy, greater load-bearing capacity, smoother movement, etc., and is more suitable for the tensile resistance detection of fresh-keeping bags.

[0017] 3. In the present invention, by setting up a laser rangefinder, the deformation displacement of the sample can be obtained, which does not require manual measurement and is more accurate; by setting up a tension sensor, the tension exerted on the sample can be obtained, which is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural diagram of a device for detecting the tensile strength of a fresh-keeping packaging bag proposed by the utility model;

[0019] Figure 2 This is a front cross-sectional view of a device for detecting the tensile strength of a fresh-keeping packaging bag proposed by the utility model;

[0020] Figure 3 A three-dimensional structural diagram of a first motor, a threaded tube and a clamping plate of a device for detecting the tensile strength of a fresh-keeping packaging bag proposed by the utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of a moving component of a device for detecting the tensile strength of a fresh-keeping packaging bag proposed by the utility model.

[0022] Legend:

[0023] 1. Workbench; 2. Support legs; 3. Laser rangefinder; 4. Tension sensor; 5. Mounting plate; 6. First motor; 7. Threaded pipe; 8. Fixed column; 9. First rotating plate; 10. Sliding pipe; 11. Second rotating plate; 12. First connecting plate; 13. Clamping plate; 14. Second motor; 15. Second connecting plate; 16. First screw rod; 17. Screw rod joint; 18. Second screw rod; 19. Sliding rod; 20. Slide plate; 21. Connecting column; 22. Cavity; 23. Limiting groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the specification of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-Figure 3 , the utility model provides an embodiment: a detection device for the tensile strength of a fresh-keeping packaging bag, comprising a workbench 1, one end surface of the workbench 1 is slidably connected to two mounting plates 5, one end surface of the mounting plate 5 is fixedly connected to a first motor 6, an output end of the first motor 6 is fixedly connected to a threaded tube 7, an outer wall of the threaded tube 7 is connected to a sliding tube 10 by a thread, the sliding tube 10 is slidably connected to one end surface of the mounting plate 5, two second rotating plates 11 are rotatably connected to both sides of the sliding tube 10, one side of one end surface of the two second rotating plates 11 is rotatably connected to a first connecting plate 12, one end surface of the first connecting plate 12 is fixedly connected to a clamping plate 13, one end surface of the mounting plate 5 is fixedly connected to two fixed columns 8, the upper part of the fixed column 8 is rotatably connected to the first rotating plate 9, and one end of the first rotating plate 9 away from the fixed column 8 is rotatably connected to the middle part of the second rotating plate 11, a cavity 22 is arranged inside the workbench 1, and a moving component is arranged inside the workbench 1. The first motor 6 uses a stepper motor. The first motor 6 rotates to drive the threaded tube 7 to rotate, thereby driving the sliding tube 10 to move on the threaded tube 7. Since the second rotating plate 11 is rotatably connected with the threaded tube 7 and the first connecting plate 12, the clamping plate 13 can move left and right, so that the fresh-keeping packaging bag can be automatically clamped without manual adjustment, thereby reducing work intensity and improving work efficiency.

[0026] Reference Figure 2 , Figure 4The moving assembly includes a second motor 14, a first screw rod 16, a second screw rod 18, a screw rod joint 17, a sliding rod 19, a slide plate 20 and a connecting column 21. The inner and outer walls of the workbench 1 are fixedly connected to the second motor 14, and the output end of the second motor 14 is fixedly connected to the first screw rod 16. The other end of the first screw rod 16 is fixedly connected to the second screw rod 18 through the screw rod joint 17. The outer walls of the first screw rod 16 and the second screw rod 18 are respectively connected to a slide plate 20 through threads. The other ends of the two slide plates 20 are inserted into the interior of the sliding rod 19. The slide plate 20 is slidably connected to the sliding rod 19. One end of the sliding rod 19 is fixedly connected to the outer wall of one end of the workbench 1, and one end surface of the slide plate 20 is fixedly connected to the connecting column 21. The other end of the connecting column 21 is fixedly connected to the surface of one end of the mounting plate 5. The second motor 14 is a stepping motor. The thread directions of the first screw rod 16 and the second screw rod 18 are opposite. The thread directions in the two slide plates 20 are different and are adapted to their respective corresponding screw rods. The two slide plates 20 are at the same distance from the axial center line of the screw rod joint 17. The second motor 14 rotates to drive the first screw rod 16 and the second screw rod 18 to rotate, so that the two slide plates 20 can move relative to each other on the first screw rod 16 and the second screw rod 18 respectively, and the slide bar 19 can ensure the stable operation of the slide plate 20, so that the two mounting plates 5 can move relative to each other. Compared with the traditional guide rail, this setting has the advantages of higher transmission accuracy, greater load-bearing capacity, and smoother movement, and is more suitable for tensile strength testing of fresh-keeping bags.

[0027] Reference Figure 1 , one end surface of a mounting plate 5 is fixedly connected to the laser rangefinder 3, and one end surface of another mounting plate 5 is fixedly connected to the tension sensor 4. After the sample is clamped, the two connecting wires of the tension sensor 4 are connected to the sample to detect the tension on the sample, and the deformation displacement of the sample can be measured by the laser rangefinder 3.

[0028] Reference Figure 2 , Figure 4 The inner outer wall of the workbench 1 is fixedly connected to the second connecting plate 15, the output end of the second motor 14 passes through the second connecting plate 15, and one end of the second screw rod 18 is rotatably connected to the outer wall of one end of the workbench 1. This setting is to ensure the stable operation of the first screw rod 16 and the second screw rod 18.

[0029] Reference Figure 1 , Figure 2 Two limiting grooves 23 are provided in the middle of one end surface of the workbench 1, and connecting columns 21 are arranged inside the limiting grooves 23. This arrangement is to limit the movement of the connecting columns 21.

[0030] Reference Figure 1 Four supporting legs 2 are fixedly connected to the surface of one end of the workbench 1 away from the mounting plate 5 .

[0031] Reference Figure 1 , Figure 2The second motor 14 and the sliding rod 19 are both arranged in the cavity 22 .

[0032] Reference Figure 3 , anti-skid teeth are arranged on one end surface of the clamping plate 13. The arrangement of the anti-skid teeth can prevent the fresh-keeping packaging bag from slipping.

[0033] Working principle: The first motor 6 rotates to drive the threaded tube 7 to rotate, thereby driving the slide tube 10 to move on the threaded tube 7. Since the second rotating plate 11 is rotatably connected with the threaded tube 7 and the first connecting plate 12, the clamping plate 13 can move left and right, so that the sample of the fresh-keeping packaging bag can be automatically clamped; the two connecting lines of the tension sensor 4 are connected to the surface of the sample, and then the second motor 14 is started. The second motor 14 rotates to drive the first screw rod 16 and the second screw rod 18 to rotate, so that the two slides 20 can move relative to each other on the first screw rod 16 and the second screw rod 18 respectively, and the slide rod 19 can ensure the stable operation of the slide plate 20, so that the two mounting plates 5 can move relative to each other; finally, the fracture displacement of the sample can be obtained by the laser rangefinder 3.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting the tensile strength of a fresh-keeping packaging bag, comprising a workbench (1), characterized in that: The workbench (1) is slidably connected to two mounting plates (5) on one end surface, and the mounting plate (5) is fixedly connected to a first motor (6) on one end surface. The output end of the first motor (6) is fixedly connected to a threaded tube (7). The outer wall of the threaded tube (7) is threadedly connected to a sliding tube (10). The sliding tube (10) is slidably connected to one end surface of the mounting plate (5). Two second rotating plates (11) are rotatably connected to both sides of the sliding tube (10). One side of one end surface of the two second rotating plates (11) is rotatably connected to a first connecting plate (12). One end surface of the first connecting plate (12) is fixedly connected to a clamping plate (13). Two fixed columns (8) are fixedly connected to one end surface of the mounting plate (5). The upper part of the fixed column (8) is rotatably connected to the first rotating plate (9). One end of the first rotating plate (9) away from the fixed column (8) is rotatably connected to the middle part of the second rotating plate (11). A cavity (22) is arranged inside the workbench (1), and a moving component is arranged inside the workbench (1).

2. A device for detecting tensile strength of fresh-keeping packaging bags according to claim 1, characterized in that: The moving assembly comprises a second motor (14), a first screw rod (16), a second screw rod (18), a screw rod joint (17), a sliding rod (19), a slide plate (20) and a connecting column (21); the inner outer wall of the workbench (1) is fixedly connected to the second motor (14); the output end of the second motor (14) is fixedly connected to the first screw rod (16); the other end of the first screw rod (16) is fixedly connected to the second screw rod (18) through a screw rod joint (17); the outer walls of the first screw rod (16) and the second screw rod (18) are respectively connected to a slide plate (20) through threads; the other ends of the two slide plates (20) are inserted with a sliding rod (19); the slide plate (20) is slidably connected to the sliding rod (19); one end of the sliding rod (19) is fixedly connected to the outer wall of one end of the workbench (1); one end surface of the slide plate (20) is fixedly connected to the connecting column (21); the other end of the connecting column (21) is fixedly connected to the surface of one end of the mounting plate (5).

3. The device for detecting tensile strength of fresh-keeping packaging bags according to claim 1, characterized in that: One end surface of one mounting plate (5) is fixedly connected to a laser rangefinder (3), and one end surface of another mounting plate (5) is fixedly connected to a tension sensor (4).

4. The device for detecting the tensile strength of a fresh-keeping packaging bag according to claim 2, characterized in that: The inner outer wall of the workbench (1) is fixedly connected to the second connecting plate (15), the output end of the second motor (14) passes through the second connecting plate (15), and one end of the second screw rod (18) is rotatably connected to the outer wall of one end of the workbench (1).

5. The device for detecting tensile strength of fresh-keeping packaging bags according to claim 1, characterized in that: Two limiting grooves (23) are provided in the middle of one end surface of the workbench (1), and connecting columns (21) are arranged inside the limiting grooves (23).

6. The device for detecting tensile strength of fresh-keeping packaging bags according to claim 1, characterized in that: Four supporting legs (2) are fixedly connected to the surface of one end of the workbench (1) away from the mounting plate (5).

7. The device for detecting the tensile strength of a fresh-keeping packaging bag according to claim 2, characterized in that: The second motor (14) and the sliding rod (19) are both arranged in the cavity (22).

8. The device for detecting tensile strength of fresh-keeping packaging bags according to claim 1, characterized in that: Anti-slip teeth are arranged on one end surface of the clamping plate (13).

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