A winding film on-line detection device

Abstract

The utility model relates to winding film production technical field, and disclose a kind of winding film online detection equipment, including detection shell, detection shell inside swing installation has detection sliding frame and adjustment sliding frame, the winding film of production process is wound in the detection shell;Push rod, detection roller and fixed screw rod are provided in the detection sliding frame, wherein the fixed screw rod is rotatably connected between the detection sliding frame, the fixed screw rod is threadedly connected between the push rod, the performance of winding film can be detected in real time in the process of production, when needing detection, winding film is directly fixed on detection roller, and detection change can be completed, when not detecting, it can be used as ordinary winding equipment, winding film can be detected at any stage during detection, without intercepting from the winding winding film, convenient and fast, and after detection ends, winding film that does not break or stretch is not serious, it can also recover automatically, and re-winding.

Description

Technical Field

[0001] This utility model relates to the field of stretch film production technology, specifically to an online inspection device for stretch film. Background Technology

[0002] The performance testing of stretch film aims to comprehensively evaluate its overall ability to wrap and protect goods through a series of standardized tests. The core is to quantify its physical and mechanical properties (such as tensile strength, elongation at break, puncture strength, impact resistance and toughness) to ensure that it has sufficient toughness, damage resistance and binding force during stretching, wrapping and transportation, so that the product meets the predetermined use requirements and quality standards and ensures the qualification rate of the produced products.

[0003] In current testing equipment, it is generally necessary to cut a section from the finished stretch film for testing. If the middle part of a roll of stretch film needs to be tested, it needs to be rewound and cut during the winding process. This operation is quite cumbersome. Therefore, it would be more convenient and faster to perform the test directly during the production process. Moreover, current testing equipment can only be used for testing and cannot be used for other functions. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides an online inspection device for stretch film, which has the advantage of inspecting the performance of stretch film during the production process.

[0005] To achieve the above objectives, the present invention provides the following technical solution: including a detection housing, wherein a detection sliding frame and an adjustment sliding frame are movably installed inside the detection housing, and a production process wrapping film is wound inside the detection housing; The detection sliding frame is equipped with a push rod, a detection roller, and a fixing screw. The fixing screw is rotatably connected to the detection sliding frame and threadedly connected to the push rod. The detection roller is mounted on the detection sliding frame via a rotating shaft. Several tension springs are fixedly installed on one end face of the detection sliding frame. The tension springs pass through the adjustment sliding frame and are located inside the adjustment sliding frame. The length of the tension springs increases sequentially from the middle to both sides.

[0006] Preferably, a cover is fixedly installed on the other side of the tension spring, and the width of the cover is greater than the width of the tension spring.

[0007] Preferably, the side of the detection sliding frame near the adjustment sliding frame consists of an inner limiting plate and an outer limiting plate, wherein the tension spring is fixedly installed on the outer limiting plate, a sliding rod is fixed to one end face of the inner limiting plate, the fixing screw is rotatably connected to the inner limiting plate, and a fixing adjustment plate is fixed to one side of the fixing screw, the fixing adjustment plate being located between the inner limiting plate and the outer limiting plate.

[0008] Preferably, the push rod slides on the slide bar, that is, the slide bar is slidably installed inside the push rod, and a fixing rod is fixed on one side of the push rod.

[0009] Preferably, the outer periphery of the detection roller is provided with at least two limiting and fixing grooves, the limiting and fixing grooves are arc-shaped, and the radius of the arc is the same as the radius of the fixing rod. The detection roller is also rotatably connected to its rotating shaft.

[0010] Preferably, an adjusting screw is fixed to the end face of the adjusting sliding frame away from the detection sliding frame, the adjusting screw passes through the detection housing to the outside, and an adjusting nut is threadedly installed on its external part.

[0011] Preferably, the detection housing is provided with a slide rail inside, and the detection sliding frame and the adjustment sliding frame slide on the slide rail. A through pressure detection groove is opened on the side end face of the detection housing, and the rotation shaft of the detection roller slides in the pressure detection groove.

[0012] Preferably, an auxiliary roller and a take-up roller are rotatably mounted inside the detection housing, wherein the outer part of the take-up roller is fixed with a take-up drive wheel, through which power is transmitted.

[0013] Compared with the prior art, this utility model provides an online inspection device for stretch film, which has the following advantages: 1. This online stretch film inspection equipment can detect the performance of stretch film in real time during the production process. When inspection is required, the stretch film can be directly fixed on the inspection roller to complete the inspection. When not in use, it can be used as a regular winding device. During inspection, it can be tested at any stage of the stretch film without cutting from the wound stretch film, which is convenient and fast. Moreover, after the inspection, the stretch film that is not broken or severely stretched can recover itself and be rewound.

[0014] 2. During testing, this online stretch film inspection equipment adjusts the initial tension required to pull the inspection sliding frame by adjusting the number of tension springs stretched by the sliding frame, thus adapting to the inspection tension adjustment of stretch films with different properties.

[0015] 3. When this online stretch film inspection equipment is used for the winding function, the stretch film is kept taut by the tension spring as it is wound by the winding roller, so that it will not be too loose and cause uneven winding, which would lead to winding chaos. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of this utility model; Figure 4 This is a schematic diagram of the frame structure of this utility model; Figure 5 This is a schematic diagram of the half-section structure of this utility model; Figure 6 This utility model Figure 5 A magnified structural diagram of point A in the middle.

[0017] In the diagram: 10. Detection housing; 101. Slide rail; 102. Pressure detection groove; 11. Auxiliary roller; 12. Rewinding roller; 121. Rewinding drive wheel; 20. Detection sliding frame; 201. Inner limit plate; 202. Outer limit plate; 203. Slide rod; 21. Push rod; 211. Fixing rod; 22. Detection roller; 221. Limiting and fixing groove; 23. Fixing screw; 231. Fixing adjustment plate; 24. Tension spring; 241. Cover; 30. Adjusting sliding frame; 31. Adjusting screw; 311. Adjusting nut. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-6As shown, the device includes a detection housing 10, inside which a detection sliding frame 20 and an adjustment sliding frame 30 are movably installed. A slide rail 101 is provided inside the detection housing 10, and the detection sliding frame 20 and the adjustment sliding frame 30 slide on the slide rail 101. An auxiliary roller 11 and a take-up roller 12 are also rotatably installed inside the detection housing 10. The auxiliary roller 11 is first wound onto the film after the production of the wrapping film. The outer part of the take-up roller 12 is fixed with a take-up drive wheel 121. An externally installed motor transmits power to the take-up drive wheel 121 through gears or belts, thereby causing the take-up roller 12 to rotate and collect the wrapping film.

[0020] The detection sliding frame 20 is equipped with a push rod 21, a detection roller 22, and a fixing screw 23. The fixing screw 23 is rotatably connected to the detection sliding frame 20 and threadedly connected to the push rod 21. The detection roller 22 is mounted on the detection sliding frame 20 via a rotating shaft. A through pressure detection groove 102 is provided on the side end face of the detection housing 10. The rotating shaft of the detection roller 22 slides within the pressure detection groove 102. Pressure sensors (not shown in the figure) are provided on both the left and right sides inside the pressure detection groove 102 to detect the pressure in the pressure detection groove 102 when the detection roller 22 moves with the rotating shaft. The internal pressure is used to determine the various properties of the stretch film. The stretch film is wound from the auxiliary roller 11, then onto the detection roller 22, and finally onto the take-up roller 12. Several tension springs 24 are fixedly installed on one end face of the detection sliding frame 20. The tension springs 24 pass through the adjustment sliding frame 30 and are located inside the adjustment sliding frame 30. The length of the tension springs 24 increases sequentially from the middle to both sides. A cover 241 is fixedly installed on the other side of the tension spring 24. The width of the cover 241 is greater than the width of the tension spring 24, that is, the tension spring 24 is restricted by the adjustment sliding frame 30 and will not be pulled out. Adjusting the position of the sliding frame 30, and adjusting the number of tension springs 24 in the initial state, adjusts the force (tension) required to pull the detection sliding frame 20. This can be used to initially test the deformation performance of the stretch film; that is, under a certain tension, the stretch film will not produce significant deformation (extension), thus pulling the detection roller 22 to shift. At this time, the pressure sensor on the left side of the pressure detection groove 102 disappears, and the stretch film does not show obvious deformation. This indicates it is qualified; otherwise, it is unqualified. Continuing to increase the number of tension springs 24 in the initial state allows for further testing. After testing the deformation performance, its toughness is further tested. Under the tension of an external motor, the stretch film drives the detection roller 22 to overcome the elastic force of the tension spring 24 and generate displacement. At this time, after the detection roller 22 is displaced, it does not contact the sensors on the left and right sides of the pressure detection groove 102. Then the stretch film is significantly stretched, and without breaking, the detection roller 22 contacts the sensor on the right side of the pressure detection groove 102. At this time, the toughness of the stretch film can be detected as qualified. The external motor can continue to apply tension until the stretch film breaks. At this time, the tensile strength of the stretch film can be detected by the pressure sensor on the right side.

[0021] The detection sliding frame 20 has an inner limiting plate 201 and an outer limiting plate 202 on the side near the adjusting sliding frame 30. A tension spring 24 is fixedly installed on the outer limiting plate 202. A sliding rod 203 is fixed to one end face of the inner limiting plate 201. A fixing screw 23 is rotatably connected to the inner limiting plate 201. A fixing adjusting plate 231 is fixed to one side of the fixing screw 23, located between the inner limiting plate 201 and the outer limiting plate 202. A push rod 21 slides on the sliding rod 203, meaning the sliding rod 203 is slidably installed inside the push rod 21. A fixing rod 211 is fixed to one side of the push rod 21. At least two limiting fixing grooves 221 are provided on the outer periphery of the detection roller 22. The limiting fixing grooves 221 are arc-shaped, and their radius is the same as the radius of the fixing rod 211. The detection roller 22 is also rotatably connected to its rotating shaft. Next, by fixing the screw 23, the fixing rod 211 is driven to cooperate with the limiting fixing groove 221, so that the stretch film can be fixed on the detection roller 22, making the entire detection sliding frame 20 a whole. Then, by applying tension through an external motor, the stretch film and the detection roller 22 drive the entire detection sliding frame 20 to move as a whole. Then, by applying a reaction force through the tension spring 24, the performance of the stretch film from the detection roller 22 to the take-up roller 12 can be detected. Moreover, when the position of the adjusting sliding frame 30 is not adjusted, that is, when the cover 241 on the shortest tension spring 24 abuts against the adjusting sliding frame 30, the overall tension of the tension spring 24 is at its minimum. At this time, when the stretch film is wound by the take-up roller 12, the tension of the tension spring 24 can always keep the stretch film taut, so that it will not be too loose during winding, causing unevenness and winding chaos.

[0022] An adjusting screw 31 is fixed to the end face of the adjusting sliding frame 30 away from the detection sliding frame 20. The adjusting screw 31 passes through the detection housing 10 to the outside. An adjusting nut 311 is threaded on its external part. Rotating the adjusting nut 311 can limit the position of the adjusting sliding frame 30, thereby adjusting the amount of tension spring 24 being stretched.

[0023] The equipment of this application can detect the performance of the stretch film in real time during the production process. When detection is required, the stretch film can be directly fixed on the detection roller 22 to complete the detection. When not in use, it can be used as a regular winding device. During detection, it can be detected at any stage of the stretch film without cutting it from the wound stretch film. Moreover, after the detection is completed, the stretch film that is not broken or not severely stretched can recover on its own and be rewound.

[0024] Working principle: During use, according to the qualification standard, the position of the adjusting sliding frame 30 is adjusted by adjusting nut 311 to adjust the amount of tension of the tension spring 24 in the initial state, thereby adjusting the tension on the stretch film. When it is necessary to test the performance of the stretch film, the fixed adjusting plate 231 can be rotated at any time during production. The fixed screw 23 drives the push rod 21 to move, so that the fixed rod 211 moves towards the detection roller 22. At this time, the detection roller 22 can be manually moved so that the limiting fixing groove 221 corresponds to the fixed rod 211. Then, the fixed rod 211 abuts against the limiting fixing groove 221 to complete the fixing of the stretch film. Then, the rotation tension of the external motor is adjusted so that the winding roller 12 rotates slowly to apply dynamic tension, which can overcome the elasticity of the tension spring 24 and pull the entire detection sliding frame 20 through the stretch film.

[0025] When deformation performance needs to be tested, the motor tension can be adjusted so that the stretch film pulls the detection sliding frame 20. Under the constraint of the tension spring 24, the detection sliding frame 20 is pulled. When the rotating shaft of the detection roller 22 inside the detection sliding frame 20 is pulled, that is, the rotating shaft disengages from the sensor on the left side of the contact pressure detection groove 102, and the stretch film does not produce large deformation at this time, it is qualified; otherwise, it is unqualified. The qualified stretch film has small deformation and the material of the stretch film can recover itself, so it will not affect its overall performance. Therefore, it can be directly wound onto the take-up roller 12.

[0026] When it is necessary to test the toughness performance, the motor tension can be increased on the basis of the above process, so that the stretch film pulls the detection sliding frame 20 so that the rotating shaft on the detection roller 22 just abuts against the sensor on the right side inside the pressure detection groove 102. At this time, the tension spring 24 is stretched by a greater amount than the above deformation performance process, so the stretch film is stretched and does not break, which means that the toughness is qualified.

[0027] When it is necessary to test the tensile strength, the motor tension can be increased. At this time, the tension is transmitted to the sensor on the right side of the pressure detection groove 102 through the wrapping film until the wrapping film breaks. The tensile strength of the wrapping film can be detected by the data from the sensor.

[0028] Once the performance test is complete, the fixing rod 211 can be loosened to allow the test roller 22 to rotate freely again, and the winding process can continue.

[0029] In summary, this online stretch film inspection device can monitor the performance of the stretch film in real time during production. When inspection is required, the stretch film can be directly fixed onto the inspection roller 22 to complete the inspection. When not in use, it can be used as a regular winding device. Inspection can be performed at any stage of the stretch film without cutting it from the wound film. Moreover, after inspection, stretch film that is not broken or severely stretched can recover on its own and be rewound. During inspection, the initial tension required to pull the inspection sliding frame 20 can be adjusted by adjusting the amount of tension spring 24 stretched by adjusting the sliding frame 30, thus adapting to the inspection tension adjustment of stretch films with different performance characteristics. When used as a winding device, the tension spring 24 keeps the stretch film taut as it is wound by the winding roller 12, preventing uneven winding due to excessive looseness and thus avoiding winding chaos.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. An online inspection device for stretch film, comprising an inspection housing (10), characterized in that: The detection housing (10) is movably installed with a detection sliding frame (20) and an adjustment sliding frame (30), and the detection housing (10) is wrapped with a production process wrapping film. The detection sliding frame (20) is provided with a push rod (21), a detection roller (22) and a fixing screw (23). The fixing screw (23) is rotatably connected to the detection sliding frame (20), and the fixing screw (23) is threadedly connected to the push rod (21). The detection roller (22) is mounted on the detection sliding frame (20) through a rotating shaft. Several tension springs (24) are fixedly installed on one end face of the detection sliding frame (20). The tension springs (24) pass through the adjustment sliding frame (30) and are located inside the adjustment sliding frame (30). The length of the tension springs (24) increases sequentially from the middle to both sides.

2. The online inspection device for stretch film according to claim 1, characterized in that: A cover (241) is fixedly installed on the other side of the tension spring (24), and the width of the cover (241) is greater than the width of the tension spring (24).

3. The online inspection device for stretch film according to claim 1, characterized in that: The detection sliding frame (20) has an inner limiting plate (201) and an outer limiting plate (202) on the side near the adjustment sliding frame (30). The tension spring (24) is fixedly installed on the outer limiting plate (202). A slide rod (203) is fixed on one end face of the inner limiting plate (201). The fixing screw (23) is rotatably connected to the inner limiting plate (201). A fixing adjustment plate (231) is fixed on one side of the fixing screw (23). The fixing adjustment plate (231) is located between the inner limiting plate (201) and the outer limiting plate (202).

4. The online inspection device for stretch film according to claim 3, characterized in that: The push rod (21) slides on the (203), that is, the slide rod (203) is slidably installed inside the push rod (21), and a fixing rod (211) is fixed on one side of the push rod (21).

5. The online inspection device for stretch film according to claim 4, characterized in that: At least two limiting and fixing grooves (221) are provided on the outer periphery of the detection roller (22). The limiting and fixing grooves (221) are arc-shaped, and their arc radius is consistent with the radius of the fixing rod (211). The detection roller (22) is also rotatably connected to its rotating shaft.

6. The online inspection device for stretch film according to claim 1, characterized in that: An adjusting screw (31) is fixed on the end face of the adjusting sliding frame (30) away from the detection sliding frame (20). The adjusting screw (31) passes through the detection housing (10) to the outside, and an adjusting nut (311) is threaded on its outer part.

7. The online inspection device for stretch film according to claim 1, characterized in that: The detection housing (10) is provided with a slide rail (101), the detection sliding frame (20) and the adjustment sliding frame (30) slide on the slide rail (101), and the side end face of the detection housing (10) is provided with a through pressure detection groove (102), and the rotation shaft of the detection roller (22) slides in the pressure detection groove (102).

8. The online inspection device for stretch film according to claim 1, characterized in that: An auxiliary roller (11) and a take-up roller (12) are rotatably installed inside the detection housing (10). The outer part of the take-up roller (12) is fixed with a take-up drive wheel (121), through which power is transmitted.

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