Plastic film tensile test device
By introducing components such as stepper motors and tensile sensors into the plastic film tensile testing device, the problems of unstable plastic film clamping and non-real-time data acquisition in the existing device have been solved, achieving stable tensile testing and accurate data acquisition.
Patent Information
- Application Number
- CN202423210487.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing tensile testing devices for plastic films are difficult to obtain stable and real-time tensile data, and plastic films are difficult to be stably clamped during the stretching process.
A device comprising a stepper motor, a lead screw, a sliding seat, a fixed seat, a tension sensor, a connecting spring, and a clamping seat is designed. The stepper motor drives the lead screw to move the sliding seat, thereby achieving stable clamping and stretching of the plastic film, and the tension sensor acquires tensile data in real time.
This enables convenient acquisition of stable tensile and tensile strength data for plastic films, improving the stability and accuracy of the test.
Smart Images
Figure CN223678963U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to plastic film detection technical field, concretely is a kind of plastic film tensile testing device. BACKGROUND
[0002] Plastic film is made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, for packaging, and as a film layer. Plastic packaging and plastic packaging products account for a larger and larger share in the market, especially composite plastic soft packaging, has been widely used in food, medicine, chemical industry and other fields, in addition, plastic film is also widely used in agricultural film field.
[0003] Plastic film needs to be tested after production to detect the tensile limit of plastic film, to ensure that the produced plastic film can meet the use demand, in the existing plastic film tensile test, the tensile data of plastic film is difficult to obtain in real time, and the plastic film is difficult to be stably stretched, therefore, a plastic film tensile testing device is provided. UTILITY MODEL CONTENT
[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a plastic film tensile testing device, which effectively solves the problems existing in the prior art.
[0005] To achieve the above object, the utility model provides the following technical scheme: a plastic film tensile testing device, including base, the base upper end middle part one side is formed with fixed seat, the base upper end of one side of fixed seat is formed with sliding groove, the sliding groove is provided with transmission screw in middle part, the transmission screw is provided with step motor away from one end of fixed seat, the fixed seat side wall above sliding groove is welded with first connecting sleeve, the first connecting sleeve inner wall is provided with tension sensor, one end of tension sensor is provided with connecting spring, the connecting spring is provided with second connecting sleeve away from one end of tension sensor, the second connecting sleeve is provided with first clamping seat away from one end of connecting spring, the transmission screw in sliding groove is provided with sliding seat, and the second clamping seat is arranged on the upper end of sliding seat.
[0006] Preferably, the first clamping seat upper end middle part is connected with fastening screw through thread, the fastening screw lower end is provided with pressing plate, and the pressing plate lower end and the first clamping seat inner bottom end are all glued with antiskid pad, the height of the pressing plate can be adjusted by rotating the fastening screw, so that the pressing plate cooperates with the lower end of the first clamping seat to clamp and fix the plastic film to be tested, and the antiskid pad can ensure the stability of the first clamping seat and the second clamping seat clamping plastic film.
[0007] Preferably, both sides of the lower end of the first clamping seat and both sides of the lower end of the second clamping seat are connected with sliding blocks through bolts, the lower end of the sliding block is connected with the upper end of the base through sliding, the second clamping seat has the same structure as the first clamping seat, and the sliding block can guarantee the stability of the movement of the first clamping seat and the second clamping seat above the base.
[0008] Preferably, the stepping motor is connected with the side wall of the base through bolts, and the transmission screw is connected with the two inner walls of the sliding groove through bearings at both ends.
[0009] Preferably, the transmission output end of the stepping motor is connected with the end of the transmission screw through a key, the transmission screw is connected with the sliding seat through threads, the sliding seat is connected with the sliding groove through sliding, the upper end of the sliding seat is connected with the lower end of the second clamping seat through bolts, and the stepping motor can drive the transmission screw to rotate when working, the transmission screw can drive the sliding seat to move in the sliding groove, and then the second clamping seat moves.
[0010] Preferably, the end of the connecting spring is connected with the tension sensor through a screw, the end of the connecting spring away from the tension sensor is connected with the second connecting sleeve through a screw, and the second connecting sleeve is welded with the side wall of the first clamping seat. When the first clamping seat is pulled, the first clamping seat can generate a pulling force on the tension sensor through the connecting spring, and the tension sensor can feed back the sensed pulling force data to the external control equipment of the device.
[0011] Compared with the prior art, the device has the advantages that:
[0012] In the plastic film tensile testing device, the stepping motor, the transmission screw, the sliding seat, the fixed seat, the first connecting sleeve, the tension sensor, the connecting spring and the second connecting sleeve are arranged, and two clamping seats are cooperated to conveniently stretch the plastic film, and the tensile data of the plastic film is acquired through the tension sensor in the stretching process, so that the device is simple and convenient to operate and very practical. The sliding block can guarantee the movement stability of the first clamping seat and the second clamping seat, and guarantee the testing stability and accuracy of the device. ACCURATE DESCRIPTION
[0013] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:
[0014] Fig. 1 It is a structural schematic view of the present application;
[0015] Fig. 2 It is a front view and sectional view of the first connecting sleeve, the connecting spring and the second connecting sleeve in the present application.
[0016] Fig. 3 This is a side view of the second clamping seat in this utility model;
[0017] In the diagram: 1. Base; 2. Fixing seat; 3. Slide groove; 4. Transmission screw; 5. Stepper motor; 6. First connecting sleeve; 7. Tension sensor; 8. Connecting spring; 9. Second connecting sleeve; 10. First clamp; 11. Sliding seat; 12. Second clamp; 13. Fastening screw; 14. Pressure plate; 15. Anti-slip pad; 16. Slider. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0019] In this embodiment, by Figs. 1-3 The present invention includes a base 1, a fixed seat 2 formed on one side of the upper middle part of the base 1, a sliding groove 3 formed on the upper part of the base 1 located on one side of the fixed seat 2, a transmission screw 4 disposed in the middle of the sliding groove 3, a stepper motor 5 disposed at the end of the transmission screw 4 away from the fixed seat 2, a first connecting sleeve 6 welded to the side wall of the fixed seat 2 above the sliding groove 3, a tension sensor 7 disposed on the inner wall of the first connecting sleeve 6, a connecting spring 8 disposed at one end of the tension sensor 7, a second connecting sleeve 9 disposed around the end of the connecting spring 8 away from the tension sensor 7, a first clamp 10 disposed at the end of the second connecting sleeve 9 away from the connecting spring 8, a sliding seat 11 disposed around the transmission screw 4 located in the sliding groove 3, and a second clamp 12 disposed at the upper end of the sliding seat 11.
[0020] The first clamp 10 has a fastening screw 13 threadedly connected to the upper middle part. A pressure plate 14 is provided on the lower periphery of the fastening screw 13. Anti-slip pads 15 are glued to the lower end of the pressure plate 14 and the inner bottom of the first clamp 10. The height of the pressure plate 14 can be adjusted by rotating the fastening screw 13, so that the pressure plate 14 cooperates with the lower end of the first clamp 10 to clamp and fix the plastic film to be tested. The anti-slip pads 15 can ensure the stability of the first clamp 10 and the second clamp 12 clamping the plastic film.
[0021] The lower ends of the first clamp 10 and the second clamp 12 are connected to sliders 16 by bolts. The lower ends of the sliders 16 are slidably connected to the upper ends of the base 1. The second clamp 12 has the same structure as the first clamp 10. The sliders 16 can ensure the stability of the first clamp 10 and the second clamp 12 when they move above the base 1.
[0022] Wherein, the step motor 5 is connected with the side wall of the base 1 through bolts, the transmission screw rod 4 is connected with the two inner walls of the sliding groove 3 through bearings at both ends, the transmission output end of the step motor 5 is connected with the end of the transmission screw rod 4 through a key, the transmission screw rod 4 is connected with the sliding seat 11 through threads, the sliding seat 11 is connected with the sliding groove 3, the upper end of the sliding seat 11 is connected with the lower end of the second clamping seat 12 through bolts, the step motor 5 can drive the transmission screw rod 4 to rotate when working, the transmission screw rod 4 can drive the sliding seat 11 to move in the sliding groove 3, and then the second clamping seat 12 moves.
[0023] Wherein, the end of the connecting spring 8 is connected with the tension sensor 7 through a screw, the end of the connecting spring 8 away from the tension sensor 7 is connected with the second connecting sleeve 9 through a screw, and the second connecting sleeve 9 is welded with the side wall of the first clamping seat 10. When the first clamping seat 10 is pulled, the first clamping seat 10 will generate a pulling force on the tension sensor 7 through the connecting spring 8, and the tension sensor 7 will feed back the sensed pulling force data to the external control equipment of the device.
[0024] Working principle: The device uses an external power supply and is controlled by an external control equipment to work. When using the device, the two ends of the plastic film to be tested are fixed on the first clamping seat 10 and the second clamping seat 12 respectively, the height of the pressing plate 14 can be adjusted by rotating the fastening screw 13 on the first clamping seat 10 and the second clamping seat 12, so that the pressing plate 14 cooperates with the lower end of the first clamping seat 10 to clamp and fix the plastic film to be tested, the anti-skid pad 15 can ensure the stability of the first clamping seat 10 and the second clamping seat 12 clamping the plastic film, then the step motor 5 works, the step motor 5 can drive the transmission screw rod 4 to rotate when working, the transmission screw rod 4 can drive the sliding seat 11 to move in the sliding groove 3, and then the second clamping seat 12 moves, so that the second clamping seat 12 moves away from the first clamping seat 10, so that the plastic film fixed between the first clamping seat 10 and the second clamping seat 12 is gradually stretched, in this process, the first clamping seat 10 will generate a pulling force on the tension sensor 7 through the connecting spring 8, and the tension sensor 7 will feed back the sensed pulling force data to the external control equipment of the device, when the plastic film is torn, the pulling force data is checked, and the tensile limit of the plastic film can be known.
[0025] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0026] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.
Claims
1. A tensile test apparatus for plastic films comprising a base (1) characterised in that: The middle part of one side of the upper end of the base (1) is formed with a fixing seat (2), the upper end of the base (1) on one side of the fixing seat (2) is formed with a sliding groove (3), a transmission screw rod (4) is arranged in the middle of the sliding groove (3), a stepping motor (5) is arranged at the end of the transmission screw rod (4) away from the fixing seat (2), a first connecting sleeve (6) is welded on the side wall of the fixing seat (2) above the sliding groove (3), a tension sensor (7) is arranged on the inner wall of the first connecting sleeve (6), a connecting spring (8) is arranged at one end of the tension sensor (7), a second connecting sleeve (9) is arranged on the periphery of the connecting spring (8) away from the tension sensor (7), a first clamping seat (10) is arranged on the end of the second connecting sleeve (9) away from the connecting spring (8), a sliding seat (11) is arranged on the periphery of the transmission screw rod (4) in the sliding groove (3), and a second clamping seat (12) is arranged on the upper end of the sliding seat (11).
2. A tensile testing apparatus for plastic films as defined in claim 1, wherein: The middle part of the upper end of the first clamping seat (10) is threadedly connected with a fastening screw (13), the periphery of the lower end of the fastening screw (13) is provided with a pressing plate (14), and the lower end of the pressing plate (14) and the inner bottom end of the first clamping seat (10) are both glued with anti-skid pads (15).
3. A tensile testing apparatus for plastic films as defined in claim 1, wherein: The lower end of the first clamping seat (10) and the lower end of the second clamping seat (12) are both bolted with sliding blocks (16), the lower end of the sliding block (16) is slidably connected with the upper end of the base (1), and the second clamping seat (12) is the same as the first clamping seat (10) in structure.
4. A tensile testing apparatus for plastic films as defined in claim 1, wherein: The stepping motor (5) is bolted with the side wall of the base (1), and the transmission screw rod (4) is connected with the two inner walls of the sliding groove (3) through bearings.
5. A tensile testing apparatus for plastic films as defined in claim 1, wherein: The transmission output end of the stepping motor (5) is connected with the end of the transmission screw rod (4) through a key, the transmission screw rod (4) is connected with the sliding seat (11) through threads, the sliding seat (11) is slidably connected with the sliding groove (3), and the upper end of the sliding seat (11) is bolted with the lower end of the second clamping seat (12).
6. A tensile testing apparatus for plastic films as defined in claim 1, wherein: The end of the connecting spring (8) is connected with the tension sensor (7) through a screw, the end of the connecting spring (8) away from the tension sensor (7) is connected with the second connecting sleeve (9) through a screw, and the second connecting sleeve (9) is welded with the side wall of the first clamping seat (10).