Plastic film stretching detection device

Abstract

The utility model discloses a plastic film stretching detection device, which belongs to the technical field of film stretching detection and detects the breaking condition of a plastic film through a laser detection transmitter and a laser detection receiver. A fixed seat is arranged on the supporting frame, a hydraulic cylinder is installed through the fixed seat, a connecting frame is hinged to the supporting frame, the hydraulic cylinder and the connecting frame are connected through a rotating seat, a movable frame is installed on a frame body of the connecting frame, a tensioning roller is connected to the movable frame, a plastic film penetrates through the tensioning roller, and the tensioning degree of the plastic film is adjusted. The accurate control of the ball screw enables the laser detection equipment to feed back detection data in real time, once the defect or abnormal condition of the plastic film is detected, the system can quickly make a response and give an alarm to assist an operator to find and process problems in time, the introduction of an automatic detection technology reduces the intervention of manual operation, and the detection efficiency is improved. And detection errors caused by human factors are effectively reduced, so that the accuracy and consistency of overall detection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film stretching detection, in particular to a plastic film stretching detection device. Background Art

[0002] As a device dedicated to testing the tensile properties of plastic films, the plastic film tensile testing device plays a vital role. It can accurately reveal the performance of the film under tensile force, providing manufacturers, researchers and quality control personnel with valuable mechanical property data to ensure that the product meets the established quality and performance standards.

[0003] One of the core components of the device is the stretching mechanism, which is responsible for applying the stretching force to enable the film sample to undergo a stretching test in a controlled environment. The stretching mechanism is usually composed of key components such as a motor, a transmission system, and a force sensor, which work together to achieve precise control of the stretching speed and applied force.

[0004] In addition, the device is also equipped with a data acquisition and processing system, which is responsible for collecting data from force sensors and displacement sensors and controlling the operation of the stretching mechanism. This system usually integrates computers and software to display test data in real time, generate detailed test reports, and conduct in-depth analysis of the collected data.

[0005] However, there are still some challenges in point-to-point detection when using plastic films in drawstrings. Because plastic films are generally highly transparent and reflective, this can cause detection equipment to face difficulties when attempting to perform point-to-point detection. Transparent films may allow light to pass through rather than reflect, thereby reducing the sensor's ability to capture an accurate signal. At the same time, highly reflective films may generate interference signals, further affecting the accuracy of detection.

[0006] In addition, the flexibility and ductility of plastic film are also important factors affecting the accuracy of point-to-point detection. During the rope pulling process, the film may deform or twist, thereby changing its geometry and optical properties. Such changes may cause the detection equipment to be unable to accurately identify specific locations or features of the film. Utility Model Content

[0007] The main purpose of the utility model is to provide a plastic film stretching detection device, which can effectively solve the problems raised in the background technology.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] A plastic film stretching detection device comprises a fixed frame, a supporting frame, an inclined frame, a film tube, a laser detection receiver and a laser detection transmitter, wherein the supporting frame is located at the end of the fixed frame, and the inclined frame is located on the outer end of the supporting frame, and the film tube is located at the top of the inclined frame, and the plastic film is stored by the film tube;

[0010] A support block is installed on the upper part of the side wall of the support frame, and a side block is installed on the outer end of the support block, a first roller and a second roller are installed on the two support blocks, and the plastic film is guided by the first roller and the second roller, and a first ball screw and a second ball screw are installed on the upper and lower parts of the two side blocks, a laser detection receiver is installed on the first ball screw, and a laser detection transmitter is installed on the second ball screw, and the broken state of the plastic film is detected by the laser detection transmitter and the laser detection receiver;

[0011] The support frame is provided with a fixed seat, a hydraulic cylinder is installed through the fixed seat, a connecting frame is hinged on the support frame, the hydraulic cylinder and the connecting frame are connected through a rotating seat, a movable frame is installed on the connecting frame, and a tensioning roller is connected to the movable frame, the plastic film passes through the tensioning roller, and the tension of the plastic film is adjusted.

[0012] As a further preferred embodiment of the present application, the connection between the support frame, the fixed frame, the inclined frame, the support block and the fixed seat is fixed by bolts, nuts and washers, and the side block is fixed to the support block by bolts, nuts and washers;

[0013] As a further preferred solution of the present application, the fixed seat and the hydraulic cylinder are fixed by bolts, the rotating seat is hinged to the telescopic end of the hydraulic cylinder, and the rotating seat is fixed to the connecting frame by bolts;

[0014] As a further preferred solution of the present application, the connecting frame and the movable frame are fixed by bolts, a plurality of tensioning rollers are installed on the movable frame, and a bearing device is provided at the connection between the tensioning roller and the movable frame;

[0015] As a further preferred solution of the present application, the first roller and the second roller are designed in parallel, and a bearing device is provided at the connection between the first roller, the second roller and the support block;

[0016] As a further preferred solution of the present application, the first ball screw and the second ball screw are started synchronously, and the two are parallel and respectively arranged at the upper and lower positions of the plastic film.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In the utility model, through two synchronously operated ball screws, the laser detection equipment can achieve accurate and efficient movement, ensuring that the laser beam can stably scan every tiny part of the plastic film. This synchronization greatly improves the accuracy and reliability of the detection. The precise control of the ball screw enables the laser detection equipment to feedback the detection data in real time. Once a defect or abnormality of the plastic film is detected, the system can respond quickly and issue an alarm to assist the operator to promptly discover and deal with the problem.

[0019] In addition, the introduction of automated testing technology reduces human intervention and effectively reduces testing errors caused by human factors, thereby improving the accuracy and consistency of overall testing. At the same time, the automatic tensioning device can adaptively adjust the tension according to the actual film state to ensure that the film maintains appropriate tension during transmission, effectively avoiding problems such as uneven stretching or breakage caused by uneven tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a diagram showing the overall structure of the utility model;

[0022] Figure 3 It is a side view of the overall structure of the utility model;

[0023] Figure 4 It is a display diagram of the side block, ball screw and laser detection equipment of the utility model;

[0024] Figure 5 This is a display diagram of the hydraulic cylinder, movable frame and tensioning roller of the utility model.

[0025] In the figure: 1. fixed frame; 2. supporting frame; 3. inclined frame; 4. film tube; 5. supporting block; 6. connecting frame; 7. first roller; 8. second roller; 9. side block; 10. first ball screw; 11. second ball screw; 12. laser detection receiver; 13. laser detection transmitter; 14. fixed seat; 15. hydraulic cylinder; 16. rotating seat; 17. movable frame; 18. tensioning roller. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1 - Figure 5As shown, a plastic film stretching detection device has a compact structure and comprehensive functions, and is mainly composed of key components such as a fixed frame 1, a supporting frame 2, an inclined frame 3, a film tube 4, a laser detection receiver 12 and a laser detection transmitter 13.

[0028] The fixed frame 1 serves as a stable foundation for the entire device, ensuring the stable installation and reliable operation of each component. The support frame 2 is cleverly arranged at the end of the fixed frame 1, playing a dual role of support and guidance. The inclined frame 3 is located on the outer end of the support frame 2, providing a stable mounting position for the film tube 4. The film tube 4 is located on the top of the inclined frame 3, and is used to store and supply the plastic film to be tested.

[0029] Support blocks 5 are installed on the upper part of the side wall of the support frame 2. These support blocks 5 not only play a supporting role, but are also closely connected to other parts of the device through the side blocks 9 installed thereon. The first roller 7 and the second roller 8 are installed on the two support blocks 5 respectively. The parallel design of these two rollers ensures the stability and smoothness of the plastic film during the transmission process. At the same time, the connection between the first roller 7 and the second roller 8 and the support block 5 is provided with a bearing device to reduce friction and resistance and improve operation efficiency.

[0030] In order to achieve fine adjustment of the tension of the plastic film, a fixed seat 14 is provided on the support frame 2, and a hydraulic cylinder 15 is installed through the fixed seat 14. The telescopic movement of the hydraulic cylinder 15 is connected to the connecting frame 6 through a rotating seat 16, and a movable frame 17 is installed on the frame of the connecting frame 6. The movable frame 17 is connected to a plurality of tension rollers 18, and the plastic film passes through these tension rollers 18. By adjusting the position and pressure of the tension rollers 18, the tension of the plastic film can be effectively adjusted.

[0031] In order to detect the breakage of the plastic film in real time, the device is also equipped with a laser detection transmitter 13 and a laser detection receiver 12. These two components are respectively mounted on the first ball screw 10 and the second ball screw 11, and the two are started synchronously to ensure the accuracy and real-time performance of the detection. When the plastic film passes by, the laser detection transmitter 13 emits a laser beam, which passes through the film and is received by the laser detection receiver 12. If there are breakages or holes in the film, the laser beam will be scattered or blocked, and then captured by the detector and an alarm will be issued.

[0032] In addition, the connections of the components in the device are fixed with bolts, nuts and washers to ensure the stability and reliability of the structure. For example, the connection between the support frame 2, the fixed frame 1, the inclined frame 3, the support block 5 and the fixed seat 14, as well as the connection between the side block 9 and the support block 5, are all fastened by bolts, nuts and washers. This connection method is not only simple and easy, but also convenient for subsequent disassembly and maintenance. The plastic film stretching detection device realizes comprehensive detection and adjustment of the tensile properties of the plastic film through ingenious structural design and functional configuration, providing strong technical support for the production and quality control of plastic films.

[0033] Working process: Wind the plastic film to be tested on the film drum 4, and ensure that the film drum 4 is firmly mounted on the top of the inclined frame 3; check whether all components are installed correctly, especially whether the laser detection transmitter 13 and the laser detection receiver 12 are aligned, and ensure that the laser beam can pass through the film normally; turn on the device to ensure that the first roller 7 and the second roller 8 can rotate smoothly, and the laser detection transmitter 13 and the laser detection receiver 12 are in working condition; the plastic film is drawn out from the film drum 4, and passes through the first roller 7 and the second roller 8 in turn, ensuring that the film remains stable and the tension is uniform during the transmission process; the film passes through the laser detection area during the transmission process, and the laser detection transmitter 13 emits a laser beam, which passes through the film and is received by the laser detection receiver 12; the detector continuously monitors the state of the laser beam. If the film has defects such as uneven stretching, breakage or holes, the laser beam will change, and the detector will capture this change and sound an alarm; based on the results of the laser detection, the tensile properties of the plastic film and whether there are quality problems can be analyzed; record the test results, and make further adjustments or improvements as needed;

[0034] Check the initial position and pressure of the tensioning roller 18 to ensure that they are in a suitable working state; observe the state of the plastic film on the tensioning roller 18 to determine whether the tension needs to be adjusted; operate the hydraulic cylinder 15 to control its telescopic movement, thereby driving the connecting frame 6 and the movable frame 17 to move; the movement of the movable frame 17 will change the position and pressure of the tensioning roller 18, thereby adjusting the tension of the plastic film; during the adjustment process, the state of the film should be closely observed to ensure that the tension is moderate, neither too tight nor too loose; after the adjustment is completed, restart the device and observe the performance of the plastic film under the new tension; if the film transmission is smooth and the stretching test results show normal, it means that the tension adjustment is successful; if there is still a problem, repeat the above adjustment process until a satisfactory tensioning effect is achieved; the plastic film stretching detection device can realize comprehensive detection and adjustment of the tensile properties of plastic films, and provide strong technical support for the production and quality control of plastic films.

[0035] In summary, the combined use of two synchronously operating ball screws and an automatic tensioning device not only improves the accuracy and efficiency of plastic film detection, but also ensures the stability and quality of the film during transmission, providing strong technical support for the production and quality control of plastic films.

[0036] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0037] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A plastic film stretching detection device, comprising a fixed frame (1), a support frame (2), an inclined frame (3), a film tube (4), a laser detection receiver (12) and a laser detection transmitter (13), wherein the support frame (2) is located at the end of the fixed frame (1), and the inclined frame (3) is located on the outer end of the support frame (2), and the film tube (4) is located on the top of the inclined frame (3), and the plastic film is stored by the film tube (4), characterized in that: A support block (5) is installed on the upper part of the side wall of the support frame (2), and a side block (9) is installed on the outer end of the support block (5); a first roller (7) and a second roller (8) are installed on the two support blocks (5); the plastic film is guided by the first roller (7) and the second roller (8); a first ball screw (10) and a second ball screw (11) are installed on the upper and lower parts of the two side blocks (9); a laser detection receiver (12) is installed on the first ball screw (10); a laser detection transmitter (13) is installed on the second ball screw (11); and the breakage of the plastic film is detected by the laser detection transmitter (13) and the laser detection receiver (12); The support frame (2) is provided with a fixed seat (14), and a hydraulic cylinder (15) is installed through the fixed seat (14). A connecting frame (6) is hinged on the support frame (2), and the hydraulic cylinder (15) and the connecting frame (6) are connected through a rotating seat (16). A movable frame (17) is installed on the connecting frame (6), and a tensioning roller (18) is connected to the movable frame (17). The plastic film passes through the tensioning roller (18) and the tension of the plastic film is adjusted.

2. A plastic film stretching detection device according to claim 1, characterized in that: The connection points of the support frame (2), the fixed frame (1), the inclined frame (3), the support block (5) and the fixed seat (14) are fixed by bolts, nuts and washers, and the side block (9) is fixed to the support block (5) by bolts, nuts and washers.

3. A plastic film stretching detection device according to claim 2, characterized in that: The fixed seat (14) and the hydraulic cylinder (15) are fixed by bolts, the rotating seat (16) is hinged to the telescopic end of the hydraulic cylinder (15), and the rotating seat (16) is fixed to the connecting frame (6) by bolts.

4. A plastic film stretching detection device according to claim 3, characterized in that: The connecting frame (6) and the movable frame (17) are fixed by bolts, a plurality of tensioning rollers (18) are mounted on the movable frame (17), and a bearing device is provided at the connection between the tensioning roller (18) and the movable frame (17).

5. A plastic film stretching detection device according to claim 4, characterized in that: The first roller (7) and the second roller (8) are designed to be parallel, and a bearing device is provided at the connection between the first roller (7), the second roller (8) and the support block (5).

6. A plastic film stretching detection device according to claim 5, characterized in that: The first ball screw (10) and the second ball screw (11) are started synchronously, are parallel to each other and are respectively arranged at upper and lower positions of the plastic film.

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