Stretching film stretching test device

Abstract

The utility model discloses a stretch film stretching test device, including bottom plate, servo motor, digital display tension meter and servo motor, the end of the upper surface of bottom plate is fixed with servo motor, and the upper surface of bottom plate on the side of servo motor is fixedly connected with clamping rod, and the outer wall of clamping rod is sleeved with support, and the support is fixed on the bottom plate. A lifting rod is fixedly connected to the upper end of an output shaft of the servo motor, positioning frames are fixed to the lower end of an output shaft of the digital display tension meter and the upper surface of the bottom plate correspondingly, a base is fixedly connected to the tail end of the side of each positioning frame, and a positioning frame is fixedly installed on the outer wall of the side of each base; a servo motor is fixedly arranged on the inner wall of the middle of the positioning frame, a transmission mechanism is arranged on the outer wall of the transmission rod, a positioning rod is installed on the transmission mechanism, and a pressing plate is fixedly connected to the end of the positioning rod. The stretch film stretching test device prevents a user from positioning the stretch film by hands, so that the use convenience of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stretch film testing equipment, in particular to a stretch film tensile testing device. Background Art

[0002] Stretch film is a transparent plastic film with the advantages of strong elasticity and good self-strength. It is mainly used as packaging material. The stretch film tensile test device is a device for evaluating the mechanical properties of the stretch film, such as tensile strength and elongation at break, which can ensure the reliability and safety of the stretch film in actual use.

[0003] However, the existing stretch film tensile testing device has the following problems when used:

[0004] A stretch wrap film strength testing device with publication number CN215115565U and authorization announcement date of 20211210. Although the device can perform stretch tests on wrap films, the positioning of the wrap film by the device requires the user to rotate a fixed screw, which makes the device inconvenient to use, thereby reducing the convenience of use of the device.

[0005] In view of the above problems, it is urgent to carry out innovative design based on the original stretch film tensile testing device. Utility Model Content

[0006] The utility model aims to provide a stretch film testing device to solve the problem that the existing stretch film testing device requires the user to position the stretch film by hand, which reduces the convenience of using the device.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wrap film tensile testing device, comprising a base plate, a servo motor, a digital display tensile gauge and a servo motor, a servo motor is fixedly arranged on the end of the upper surface of the base plate, and a clamping rod is fixedly connected to the upper surface of the base plate on the side of the servo motor, and a bracket is sleeved on the outer wall of the clamping rod, and a lifting rod is fixedly connected to the upper end of the servo motor output shaft, and a digital display tensile gauge is fixedly arranged on the end face of the bracket, and a positioning frame is respectively fixed to the lower end of the digital display tensile gauge output shaft and the upper surface of the base plate, and a base is fixedly connected to the end of the side of the positioning frame, and a positioning frame is fixedly installed on the outer wall of the side of the base, and a servo motor is fixedly arranged on the inner wall in the middle of the positioning frame, and a transmission rod is respectively fixed to the two ends of the servo motor output shaft, a transmission mechanism is arranged on the outer wall of the transmission rod, and a positioning rod is installed on the transmission mechanism, and a pressure plate is fixedly connected to the end of the positioning rod.

[0008] Preferably, the clamping rod and the bracket form a sliding structure, and the bracket and the lifting rod are threadedly connected.

[0009] Preferably, the positioning frame and the positioning rack are fixedly connected, and the positioning rack and the positioning rod are slidably connected, and the end surface of the positioning rod is connected to the positioning rack via a spring.

[0010] Preferably, the transmission mechanism comprises a sleeve and a support rod, wherein the sleeve is sleeved on the outer wall of the transmission rod, and the side outer wall of the sleeve is movably connected to the support rod.

[0011] Preferably, the sleeve and the transmission rod are threaded, and the directions of the threads arranged on the outer wall of the transmission rod are symmetrically distributed about the longitudinal center axis of the servo motor, and the transmission rod and the positioning frame form a rotating structure.

[0012] Preferably, one end of the support rod is rotatably connected to the sleeve, and the other end of the support rod and the positioning rod form a rotating structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the stretch film testing device avoids the user from positioning the stretch film by hand, thereby improving the convenience of using the device;

[0014] The servo motor drives the transmission rod to make the sleeve move in opposite directions at the same time, and then the sleeve drives the support rod, so that the support rod pushes the positioning rod to move, so that the positioning rod pushes the pressure plate so that the pressure plate presses the wrapping film close to the base, thereby completing the positioning of the wrapping film, avoiding the user from positioning the wrapping film by hand, and making the device more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front section structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the top-sectional structure of the base of the utility model;

[0017] Figure 3 This is a schematic diagram of the side section structure of the base of the utility model;

[0018] Figure 4 This is a schematic diagram of the top-sectional structure of the transmission mechanism of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the bracket of the utility model from a top view.

[0020] In the figure: 1. bottom plate; 2. servo motor; 3. clamping rod; 4. lifting rod; 5. bracket; 6. digital dynamometer; 7. positioning frame; 8. base; 9. positioning frame; 10. servo motor; 11. transmission rod; 12. transmission mechanism; 1201. sleeve; 1202. support rod; 13. positioning rod; 14. pressure plate; 15. spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments 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 in 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.

[0022] See also Figure 1-5 The utility model provides a technical solution: a stretch film tensile testing device, including a bottom plate 1, a servo motor 2, a clamping rod 3, a lifting rod 4, a bracket 5, a digital display tensile gauge 6, a positioning frame 7, a base 8, a positioning frame 9, a servo motor 10, a transmission rod 11, a transmission mechanism 12, a sleeve 1201, a support rod 1202, a positioning rod 13, a pressing plate 14 and a spring 15. The servo motor 2 is fixedly arranged on the upper surface end of the bottom plate 1, and the clamping rod 3 is fixedly connected to the upper surface of the bottom plate 1 on the side of the servo motor 2, and the outer wall of the clamping rod 3 is sleeved with a bracket 5, and the upper end of the output shaft of the servo motor 2 is fixedly connected to the lifting rod 4. The lowering rod 4 is fixedly provided with a digital dynamometer 6 on the end face of the bracket 5, and a positioning frame 7 is fixedly provided on the lower end of the output shaft of the digital dynamometer 6 and the upper surface of the bottom plate 1 respectively, and the end of the side of the positioning frame 7 is fixedly connected with a base 8, and a positioning frame 9 is fixedly installed on the side outer wall of the base 8, and a servo motor 10 is fixedly provided on the inner wall in the middle of the positioning frame 9, and transmission rods 11 are fixedly provided at both ends of the output shaft of the servo motor 10 respectively, and a transmission mechanism 12 is provided on the outer wall of the transmission rod 11, and a positioning rod 13 is installed on the transmission mechanism 12, and a pressure plate 14 is fixedly connected to the end of the positioning rod 13.

[0023] The clamping rod 3 and the bracket 5 form a sliding structure, and the bracket 5 and the lifting rod 4 are threadedly connected, so that the servo motor 2 drives the lifting rod 4 to rotate, so that the bracket 5 moves vertically along the clamping rod 3 and the lifting rod 4, thereby driving the upper end of the wrapping film to move for the tensile test of the wrapping film.

[0024] The positioning frame 7 is fixedly connected to the positioning frame 9, and the positioning frame 9 is slidably connected to the positioning rod 13, and the end face of the positioning rod 13 is connected to the positioning frame 9 through a spring 15, so as to facilitate the overall stability of the lifting device and facilitate the movement of the pressure plate 14 to position the wrapping film. The pressure plate 14 drives the positioning rod 13 to slide relative to the positioning frame 9, and at the same time, the positioning rod 13 is elastically supported by the spring 15.

[0025] The transmission mechanism 12 includes a sleeve 1201 and a support rod 1202, and the sleeve 1201 is sleeved on the outer wall of the transmission rod 11, and the side outer wall of the sleeve 1201 is movably connected with the support rod 1202, so that the servo motor 10 drives the transmission rod 11 to move the transmission mechanism 12, thereby driving the pressure plate 14 to move and fit the wrapping film to position the wrapping film.

[0026] The sleeve 1201 and the transmission rod 11 are threaded, and the direction of the thread set on the outer wall of the transmission rod 11 is symmetrically distributed about the longitudinal center axis of the servo motor 10, and the transmission rod 11 and the positioning frame 9 form a rotating structure, so that when the servo motor 10 drives the transmission rod 11 to rotate, the sleeve 1201 moves toward or oppositely along the transmission rod 11 at the same time.

[0027] One end of the support rod 1202 is rotatably connected to the sleeve 1201, and the other end of the support rod 1202 and the positioning rod 13 form a rotating structure, so that when the sleeve 1201 moves, the sleeve 1201 drives the support rod 1202, so that the support rod 1202 drives the positioning rod 13 to move, and the positioning rod 13 drives the pressure plate 14 to move, thereby facilitating the pressure plate 14 to fit the wrapping film to position the wrapping film.

[0028] Working principle: When using the stretch film tensile test device, first Figure 1-4 As shown, the user inserts the lower end of the wrapping film to be tested between the base 8 and the pressing plate 14 on the bottom plate 1, and then the user starts the servo motor 10 on the bottom plate 1, and then the servo motor 10 drives the transmission rod 11 to rotate, and then the sleeve 1201 moves in the opposite direction along the transmission rod 11 at the same time, and then the sleeve 1201 rotates relative to one end of the support rod 1202 and drives the other end of the support rod 1202 to move, and at the same time, the other end of the support rod 1202 rotates relative to the positioning rod 13 and drives the positioning rod 13 to move relative to the positioning frame 9, and as the positioning rod 13 moves, the positioning rod 13 compresses the spring 15, so that the positioning rod 13 is elastically supported by the spring 15, and then the positioning rod 13 drives the pressing plate 14 to move , and as the pressure plate 14 continues to move, the pressure plate 14 presses the wrapping film to fit closely to the base 8, thereby positioning the lower end of the wrapping film. Next, the user inserts the wrapping film between the base 8 and the pressure plate 14 on the digital display tensile gauge 6, and then the user moves the wrapping film so that the upper end of the wrapping film fits the upper surface of the base 8 on the digital display tensile gauge 6. At the same time, the user presses the upper end of the wrapping film with his fingers to fit the base 8, thereby preventing the pressure plate 14 on the digital display tensile gauge 6 from clamping the user's fingers when moving. Then, as shown above, the servo motor 10 on the digital display tensile gauge 6 is started to complete the positioning of the upper end of the wrapping film. Therefore, the device avoids the user from positioning the wrapping film by hand, making the device more convenient to use. Then, as shown above, Figure 1-2 and Figure 5 As shown, the user starts the servo motor 2, and then the servo motor 2 drives the lifting rod 4 to rotate, and then the bracket 5 moves up along the lifting rod 4 and the clamping rod 3, and then the bracket 5 drives the digital display tensile gauge 6 to move up, thereby pulling the upper end of the wrapping film up to perform a tensile test on the wrapping film. At this time, the user observes the data displayed on the digital display tensile gauge 6, which is the magnitude of the tension that the wrapping film is subjected to.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. A stretch film tensile testing device, comprising a base plate (1), a servo motor (2), a digital tensile gauge (6) and a servo motor (10), characterized in that: A servo motor (2) is fixedly arranged at the end of the upper surface of the base plate (1), and a clamping rod (3) is fixedly connected to the upper surface of the base plate (1) on the side of the servo motor (2), and a bracket (5) is sleeved on the outer wall of the clamping rod (3), and a lifting rod (4) is fixedly connected to the upper end of the output shaft of the servo motor (2), and a digital tensile gauge (6) is fixedly arranged on the end surface of the bracket (5), and a positioning frame (7) is respectively fixed to the lower end of the output shaft of the digital tensile gauge (6) and the upper surface of the base plate (1), and the positioning The end of the side of the frame (7) is fixedly connected to a base (8), and a positioning frame (9) is fixedly installed on the outer wall of the side of the base (8), and a servo motor (10) is fixedly installed on the inner wall of the middle of the positioning frame (9), and transmission rods (11) are respectively fixed at both ends of the output shaft of the servo motor (10), and the outer wall of the transmission rod (11) is provided with a transmission mechanism (12), and a positioning rod (13) is installed on the transmission mechanism (12), and the end of the positioning rod (13) is fixedly connected to a pressure plate (14).

2. A stretch film tensile testing device according to claim 1, characterized in that: The clamping rod (3) and the bracket (5) form a sliding structure, and the bracket (5) and the lifting rod (4) are threadedly connected.

3. A stretch film tensile testing device according to claim 1, characterized in that: The positioning frame (7) and the positioning frame (9) are fixedly connected, and the positioning frame (9) and the positioning rod (13) are slidably connected, and the end surface of the positioning rod (13) is connected to the positioning frame (9) via a spring (15).

4. A stretch film tensile testing device according to claim 1, characterized in that: The transmission mechanism (12) comprises a sleeve (1201) and a support rod (1202), wherein the sleeve (1201) is sleeved on the outer wall of the transmission rod (11), and the side outer wall of the sleeve (1201) is movably connected to the support rod (1202).

5. A stretch film tensile testing device according to claim 4, characterized in that: The sleeve (1201) and the transmission rod (11) are threadedly arranged, and the directions of the threads arranged on the outer wall of the transmission rod (11) are symmetrically distributed about the longitudinal center axis of the servo motor (10), and the transmission rod (11) and the positioning frame (9) form a rotating structure.

6. A stretch film tensile testing device according to claim 4, characterized in that: One end of the support rod (1202) is rotatably connected to the sleeve (1201), and the other end of the support rod (1202) and the positioning rod (13) form a rotating structure.

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