PVB (polyvinyl butyral) film shrinkage detection equipment

Abstract

The utility model provides a PVB (polyvinyl butyral) film shrinkage detection device. The device comprises a detection plate; the conveying mechanism is arranged on the detection plate and is used for conveying the PVB film to a detection station; the optical detection module is arranged on the detection plate, is positioned right above the detection station and is used for carrying out glue shrinkage detection on the PVB film; the control module is electrically connected with the optical detection module and the conveying mechanism; and the alarm module is electrically connected with the control module. According to the utility model, the automatic and high-precision detection of the glue shrinkage phenomenon of the PVB film is realized through a mechanical and optical combined detection mode. Compared with traditional manual visual inspection, the equipment not only improves the accuracy and efficiency of detection, but also greatly reduces the influence of human factors on the detection result.

Description

TECHNICAL FIELD

[0001] The utility model relates to film production quality detection technical field, especially a kind of PVB film shrinkage detection equipment. BACKGROUND

[0002] PVB (Polyvinyl Butyral, polyvinyl butyral) film as an important polymer material, in automobile safety glass, building laminated glass, photovoltaic module packaging and other fields have wide application. Its excellent transparency, toughness, adhesion and sound insulation and heat insulation performance make it become indispensable material in these fields. However, in the production and processing of PVB film, due to the influence of process conditions, raw material quality or environmental factors and other factors, shrinkage phenomenon may occur. Shrinkage not only affects the appearance quality of PVB film, but also may adversely affect its physical properties and chemical properties, and then affect the performance and service life of the final product.

[0003] At present, for the detection of PVB film shrinkage, mainly adopts artificial visual inspection or simple size measurement method. These methods have deficiencies. Artificial visual inspection depends on the experience and subjective judgment of inspector, and the detection result is easily affected by human factors, leading to misjudgment or omission, and the accuracy of detection is low. UTILITY MODEL CONTENT

[0004] The utility model aims at least solve the technical problem in prior art that artificial visual inspection depends on the experience and subjective judgment of inspector, and the detection result is easily affected by human factors, leading to misjudgment or omission, and the accuracy of detection is low, and particularly innovatively proposes a kind of PVB film shrinkage detection equipment.

[0005] In order to realize the above-mentioned purpose of the utility model, the utility model provides a kind of PVB film shrinkage detection equipment, the equipment includes:

[0006] Detection plate;

[0007] Conveying mechanism, set on the detection plate, for conveying PVB film to detection station;

[0008] Optical detection module, set on the detection plate, and located just above the detection station, for shrinkage detection of PVB film;

[0009] Control module, electrically connected with the optical detection module and conveying mechanism;

[0010] Alarm module, electrically connected with the control module.

[0011] As an optional embodiment of the utility model, optionally, the conveying mechanism includes:

[0012] A slide rail is arranged on the detection plate.

[0013] A sliding block is movably arranged on the slide rail.

[0014] A driving assembly is arranged on the detection plate and connected with the sliding block, and is used for conveying the sliding block to the detection station.

[0015] A position limiter is arranged on the detection plate and used for limiting the sliding block.

[0016] As an optional embodiment of the utility model, optionally, the driving assembly comprises:

[0017] A servo driver is arranged on the detection plate.

[0018] A first transmission shaft a is fixedly connected with the output shaft of the servo driver, and a roller is arranged on the first transmission shaft a.

[0019] A second transmission shaft b is arranged on the detection plate and cooperates with the first transmission shaft a, and a roller is also arranged on the second transmission shaft b.

[0020] A driving belt is arranged on the rollers of the first transmission shaft a and the second transmission shaft b, and the sliding block is connected with the driving belt and moves synchronously with the driving belt.

[0021] As an optional embodiment of the utility model, optionally, a vacuum adsorption unit is arranged on the top of the sliding block.

[0022] As an optional embodiment of the utility model, optionally, the vacuum adsorption unit comprises:

[0023] An adsorption cavity is arranged on the top of the sliding block.

[0024] An adsorption plate is arranged on the adsorption cavity.

[0025] A negative pressure machine is connected with the adsorption cavity pipe and used for providing negative pressure for the adsorption cavity, so that the adsorption plate adsorbs the PVB film.

[0026] A control valve is arranged on the connecting pipe between the negative pressure machine and the adsorption cavity.

[0027] As an optional embodiment of the utility model, optionally, a plurality of adsorption holes are arranged on the adsorption plate.

[0028] As an optional embodiment of the utility model, optionally, two slide rails are arranged on the detection plate.

[0029] As an optional embodiment of the utility model, optionally, the optical detection module comprises:

[0030] X-axis drive module, arranged on the detection plate through a support column;

[0031] Y-axis drive module, movably arranged on the X-axis drive module;

[0032] Optical detection unit, arranged at the end of the Y-axis drive module.

[0033] As an optional embodiment of the utility model, optionally, the device further includes a control panel, the control panel is connected with the control module, and is used for controlling the conveying mechanism and the optical detection module.

[0034] As an optional embodiment of the utility model, optionally, the device further includes a display screen, arranged on the detection plate and connected with the control module.

[0035] The utility model discloses the beneficial effect lies in, the utility model discloses a detection mode that combines mechanical and optical, realizes the automation, high-precision detection of PVB film shrinkage phenomenon. Compared with traditional manual visual inspection, the device not only improves the accuracy and efficiency of detection, but also greatly reduces the influence of human factors on the detection result. Through conveying mechanism, PVB film is accurately conveyed to the detection station, and the optical detection module scans the film comprehensively, can quickly identify the shrinkage area, and the control module controls the alarm module to issue an alarm in real time according to the detection result, reminds the operator to handle in time. In addition, the device is also equipped with a display screen and a control panel, so that the operator can intuitively check the detection result and control the operation of the device, further improving the ease of use and practicality of the device.

[0036] The additional aspects and advantages of the utility model will be partly given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0037] The above and / or additional aspects and advantages of the utility model will become apparent and more readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0038] Figure 1 It is the module structure schematic drawing of PVB film shrinkage detection equipment of the utility model.

[0039] Figure 2 It is the structure schematic diagram of PVB film shrinkage detection equipment of the utility model.

[0040] Figure 3 It is the structure schematic diagram of optical detection module of the utility model.

[0041] Figure 4It is the structural schematic view of the conveying mechanism of the utility model.

[0042] Figure 5 It is the structural schematic view of the vacuum adsorption unit of the utility model.

[0043] Figure 6 It is the structural schematic view of the adsorption plate of the utility model.

[0044] In the figure, 1, detection plate, 2, slide rail, 3, sliding block, 4, limit stop, 5, optical detection module, 6, alarm module, 7, servo driver, 8a, first transmission shaft, 8b, second transmission shaft, 9, roller, 10, drive belt, 11, X-axis drive module, 12, Y-axis drive module, 13, optical detection unit, 14, support column, 15, adsorption cavity, 16, adsorption plate, 17, negative pressure machine, 18, control valve, 19, adsorption hole, 20, display screen. DETAILED DESCRIPTION

[0045] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0046] As Figure 1 And 2 Indicated, a kind of PVB film shrinkage detection equipment, the equipment includes:

[0047] Detection plate 1;In the embodiment, detection plate 1 bottom is also equipped with support frame (not shown in the figure), support frame bottom is also equipped with universal wheel, PVB film shrinkage detection equipment can be moved to arbitrary position by universal wheel and support frame, facilitate operator to operate.

[0048] Conveying mechanism, be arranged in detection plate 1, for conveying PVB film to detection station;

[0049] As Figure 2 And 4 Indicated, conveying mechanism includes:

[0050] Slide rail 2, is welded on detection plate 1, the length direction of slide rail 2 is identical with the length direction of detection plate 1, to facilitate the smooth sliding of sliding block 3 on slide rail 2;

[0051] Sliding block 3, is slidably installed on slide rail 2, the bottom of sliding block 3 is provided with the sliding slot compatible with slide rail 2, and sliding block 3 is slidably installed on slide rail 2 by the sliding slot, and sliding block 3 is used to carry PVB film;

[0052] A driving assembly is installed on the detection plate 1 and connected with the sliding block 3, for conveying the sliding block 3 to the detection station, and the driving assembly can drive the sliding block 3 to slide on the slide rail 2, so as to convey the PVB film to the detection station for detection.

[0053] A position limiter 4 is installed on the detection plate 1 and used for limiting the sliding block 3, and the position limiter 4 can prevent the sliding block 3 from being separated from the slide rail 2 during sliding, so as to ensure the normal operation of the equipment.

[0054] An optical detection module 5 is installed on the detection plate 1 and located directly above the detection station, and used for shrinkage detection of the PVB film. The specific structure and working principle of the optical detection module 5 will be described in detail below.

[0055] As shown in Figure 3 The optical detection module 5 mainly includes an X-axis driving module 11, a Y-axis driving module 12 and an optical detection unit 13. The X-axis driving module 11 is stably installed on the detection plate 1 through a support column 14, and it is responsible for moving the Y-axis driving module 12 in the horizontal direction. The Y-axis driving module 12 is movably arranged on the X-axis driving module 11 and can be moved in the vertical direction under the driving of the X-axis driving module 11. The optical detection unit 13 is arranged at the end of the Y-axis driving module 12, and under the coordinated action of the X-axis and Y-axis driving modules, the optical detection unit 13 can be accurately adjusted in position above the detection station, so as to ensure comprehensive and detailed scanning of the PVB film.

[0056] During the detection process, the optical detection unit 13 emits light of a specific wavelength, and the light is captured by a receiver after penetrating the PVB film. By analyzing the attenuation and scattering of the light during penetration, the optical detection unit 13 can accurately identify the shrinkage area. Once the shrinkage phenomenon is detected, the control module will immediately receive the signal and determine whether the alarm module 6 needs to be triggered according to the preset logic. If needed, the alarm module 6 will issue an obvious audible and visual alarm to remind the operator to handle the PVB film with shrinkage problem in time. In this embodiment, the optical detection unit 13 is a commercially available product, specifically a high-precision industrial camera, which has high-resolution image acquisition capability and can capture small defects on the surface of the PVB film, including the shrinkage phenomenon. The selection of the industrial camera is customized according to the requirements of detection accuracy and speed to ensure the efficiency and accuracy of detection.

[0057] A control module is electrically connected with the optical detection module 5 and the conveying mechanism.

[0058] In this embodiment, the control module is a PLC (Programmable Logic Controller). The PLC is responsible for receiving detection signals from the optical inspection module 5 and processing and analyzing the signals according to preset program logic. When shrinkage is detected, the PLC sends a command to the alarm module 6 to trigger an alarm. Simultaneously, the PLC also controls the operation of the conveying mechanism to ensure that the PVB film is accurately and smoothly transported to the inspection station. Through close cooperation with the optical inspection module 5, the conveying mechanism, and the alarm module 6, the PLC achieves automated and high-precision detection of PVB film shrinkage, greatly improving the accuracy and efficiency of the detection.

[0059] Alarm module 6 is electrically connected to the control module.

[0060] In this embodiment, alarm module 6 is an audible and visual alarm. When shrinkage is detected, the audible and visual alarm will immediately sound an alarm to remind the operator to handle it in time. The design of the audible and visual alarm makes the alarm information intuitive and easy to notice. Even in a noisy working environment, the operator can quickly notice the alarm signal to ensure that the shrinkage problem is dealt with in a timely manner.

[0061] like Figures 1 to 4 As shown, in the PVB film shrinkage detection equipment of this embodiment, the operator first places the PVB film to be tested on the slider 3. Then, the equipment is started via the control module, and the drive components begin to work. The servo driver 7 drives the rollers 9 on the first drive shaft 8a and the second drive shaft 8b to rotate, thereby driving the drive belt 10 to move. Since the slider 3 is connected to the drive belt 10, the slider 3 slides smoothly on the slide rail 2, accurately conveying the PVB film to the detection station. During this process, the limiter 4 ensures that the slider 3 does not disengage from the slide rail 2, guaranteeing the stable operation of the equipment.

[0062] Once the PVB film arrives at the inspection station, the optical inspection module 5 begins operation. The X-axis drive module 11 and the Y-axis drive module 12 work in tandem to precisely position the optical inspection unit 13 above the inspection station. The optical inspection unit 13 emits light of a specific wavelength, which penetrates the PVB film and is captured by the receiver. By analyzing the attenuation and scattering of the light during penetration, the optical inspection unit 13 can accurately identify areas of film shrinkage.

[0063] Once shrinkage is detected, the control module immediately receives a signal and determines whether to trigger the alarm module 6. In this embodiment, if the shrinkage area exceeds a preset threshold, the control module will send a command to the alarm module 6 to trigger an audible and visual alarm. After hearing the alarm, the operator can immediately check the detection results displayed on the screen 20 to understand the specific location and extent of the shrinkage and take appropriate measures.

[0064] Furthermore, operators can set and adjust the equipment's operating parameters, such as detection accuracy and alarm thresholds, through the control panel. The display screen 20 shows the equipment's operating status and detection results in real time, allowing operators to intuitively understand the equipment's working condition and further enhancing its ease of use and practicality.

[0065] This utility model's PVB film shrinkage detection equipment achieves automated and high-precision detection of PVB film shrinkage through a combination of mechanical and optical methods. This equipment not only improves the accuracy and efficiency of detection but also significantly reduces the impact of human factors on the results, providing strong quality assurance for the production and processing of PVB film.

[0066] As an optional embodiment of this utility model, the conveying mechanism may optionally include:

[0067] Slide rails 2 are mounted on the detection plate 1. In this embodiment, two slide rails 2 are installed parallel to each other on the detection plate 1. The slider 3 slides synchronously on the two slide rails 2 to ensure the stability and accuracy of the PVB film during transmission. Slide grooves adapted to the two slide rails 2 are provided on both sides of the slider 3, allowing the slider 3 to slide smoothly and stably on the two slide rails 2. This design not only improves the operational stability of the equipment but also further enhances its load-bearing capacity, making the equipment suitable for detecting larger and heavier PVB films.

[0068] Slider 3 is movably mounted on slide rail 2;

[0069] A drive component is disposed on the detection plate 1 and connected to the slider 3, for conveying the slider 3 to the detection station;

[0070] like Figure 4 As shown, the driving component includes

[0071] Servo driver 7, which is securely mounted on detection board 1, provides the power source for the entire drive assembly;

[0072] The first drive shaft 8a has one end fixedly connected to the output shaft of the servo driver 7, and the other end rotatably mounted on the detection plate 1. As the servo driver 7 is started, the first drive shaft 8a begins to rotate.

[0073] The second drive shaft 8b is mounted parallel to the first drive shaft 8a on the detection plate 1 and is rotatably connected to the detection plate 1. When the first drive shaft 8a rotates, the second drive shaft 8b is driven to rotate synchronously via the drive belt 10.

[0074] Rollers 9 are fixedly installed on the first transmission shaft 8a and the second transmission shaft 8b respectively. With the rotation of the transmission shafts, the rollers 9 rotate, thereby driving the driving belt 10 in contact with them to move;

[0075] The driving belt 10 is wound around the rollers 9 of the first transmission shaft 8a and the second transmission shaft 8b to form a closed loop structure. The sliding block 3 is fixedly connected with the driving belt 10 through a connecting mechanism (such as a clamp, a connecting plate, etc., not shown in detail in the figure), so that when the driving belt 10 moves, the sliding block 3 can be driven to smoothly slide on the slide rail 2, realizing the conveying of the PVB film.

[0076] The stopper 4 is arranged on the detection plate 1 and is used for limiting the sliding block 3.

[0077] As shown in Figure 2 and 4 , in use, the operator first starts the servo driver 7, the output shaft of the servo driver 7 rotates, driving the first transmission shaft 8a to rotate. Since the first transmission shaft 8a and the second transmission shaft 8b are connected through the driving belt 10, the second transmission shaft 8b will also rotate synchronously. With the rotation of the first transmission shaft 8a and the second transmission shaft 8b, the rollers 9 installed thereon also rotate, thereby driving the driving belt 10 to move. Since the sliding block 3 is fixedly connected with the driving belt 10 through the connecting mechanism, when the driving belt 10 moves, the sliding block 3 will also smoothly slide on the slide rail 2, accurately conveying the PVB film placed on the sliding block 3 to the detection station. In this process, the stopper 4 plays a limiting role on the sliding block 3, preventing the sliding block 3 from slipping off the slide rail 2 during sliding, and ensuring the stable operation of the equipment.

[0078] The vacuum adsorption unit comprises:

[0079] The adsorption cavity 15 is arranged on the top of the sliding block 3; as shown in Figure 5 , the adsorption cavity 15 is internally provided with a negative pressure channel, one end of which is connected with the negative pressure machine 17, and the other end is connected with the adsorption hole 19 on the adsorption plate 16. When the PVB film is adsorbed, the negative pressure machine 17 is started, and the air in the adsorption cavity 15 is extracted through the negative pressure channel, thereby forming a negative pressure environment in the adsorption cavity 15. At this time, the PVB film is tightly adsorbed on the adsorption plate 16 and smoothly moves with the sliding of the sliding block 3, ensuring the stability and accuracy of the PVB film in the conveying process.

[0080] The adsorption plate 16 is sealingly arranged on the adsorption cavity 15, is made of high-quality material, has good flatness and adsorption performance, can ensure that the PVB film is tightly attached to the adsorption plate 16, and avoids deviation or sliding of the PVB film during conveying. Meanwhile, the design of the adsorption holes 19 on the adsorption plate 16 enables the negative pressure to uniformly act on the surface of the PVB film, and further improves the adsorption effect. After detection is completed, the control module controls the negative pressure machine 17 to stop working, the negative pressure in the adsorption cavity 15 disappears, and the PVB film can be easily taken off from the adsorption plate 16, which is convenient for subsequent processing of the operator.

[0081] The negative pressure machine 17 is connected with the adsorption cavity 15, and is used for providing negative pressure for the adsorption cavity 15, so that the adsorption plate 16 adsorbs the PVB film.

[0082] The control valve 18 is arranged on the connecting pipe between the negative pressure machine 17 and the adsorption cavity 15.

[0083] As shown in Figure 5 and 6 , in use, the operator first places the PVB film to be detected on the adsorption plate 16. Then, the negative pressure machine 17 is started, air in the adsorption cavity 15 is pumped out through the negative pressure channel, and the adsorption plate 16 generates adsorption force on the PVB film. At this time, the PVB film is tightly adsorbed on the adsorption plate 16 and moves stably along with the sliding block 3. When the PVB film is conveyed to the detection station, the optical detection module 5 starts to work and detects the PVB film. After detection is completed, the control module controls the negative pressure machine 17 to stop working, the negative pressure in the adsorption cavity 15 disappears, and the PVB film can be taken off from the adsorption plate 16, which is convenient for subsequent processing of the operator.

[0084] As an optional embodiment of the utility model, optionally, the optical detection module 5 comprises:

[0085] The X-axis drive module 11 is arranged on the detection plate 1 through the support column 14;

[0086] The Y-axis drive module 12 is movably arranged on the X-axis drive module 11;

[0087] The optical detection unit 13 is arranged at the end of the Y-axis drive module 12.

[0088] As shown in Figure 3As shown, the X-axis drive module 11 and the Y-axis drive module 12 are commercially available products; in use, the operator can set the detection area and detection accuracy and other parameters through the control panel. After receiving the instructions, the X-axis drive module 11 and the Y-axis drive module 12 will accurately adjust the position of the optical detection unit 13, ensuring that it is aligned with the PVB film area to be detected. The optical detection unit 13 then starts working, emitting high-intensity light, which is captured by a high-precision receiver after penetrating the PVB film. By comparing the intensity change of the light before and after penetration, the optical detection unit 13 can accurately determine whether there is a shrinkage phenomenon on the PVB film.

[0089] As an optional embodiment of the utility model, optionally, the device further includes a control panel, the control panel is connected with the control module, and is used for controlling the conveying mechanism and the optical detection module 5.

[0090] It should be noted that the control panel in the embodiment is used for the operator to input instructions and parameters, such as setting the detection area, detection accuracy, alarm threshold and the like. The control panel adopts an intuitive and easy-to-use interface design, so that the operator can easily complete the setting and adjustment of the device. In use, the operator can input instructions and parameters through a touch screen or a button and the like.

[0091] As an optional embodiment of the utility model, optionally, the device further includes a display screen 20, which is arranged on the detection plate 1 and connected with the control module.

[0092] As shown in Figure 1 The display screen 20 is installed on the detection plate 1 by screws and can display the running state of the device, detection results and operation prompts and the like in real time. The display screen 20 adopts high-definition liquid crystal display technology, ensuring the clarity and readability of information display. The operator can observe the information on the display screen 20 to timely understand the running condition of the device and make corresponding operation and adjustment.

[0093] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A PVB interlayer shrinkage detection apparatus, characterized by, The device comprises: a detection plate (1); a conveying mechanism arranged on the detection plate (1) and used for conveying PVB films to a detection station; an optical detection module (5) arranged on the detection plate (1) and located directly above the detection station and used for performing shrinkage detection on the PVB films; a control module electrically connected with the optical detection module (5) and the conveying mechanism; an alarm module (6) electrically connected with the control module.

2. The PVB web shrinkage detection apparatus of claim 1, wherein, The conveying mechanism comprises: a slide rail (2) arranged on the detection plate (1); a slide block (3) movably arranged on the slide rail (2); a driving assembly arranged on the detection plate (1) and connected with the slide block (3) and used for conveying the slide block (3) to the detection station; a position limiter (4) arranged on the detection plate (1) and used for limiting the slide block (3).

3. The PVB web shrinkage detection apparatus of claim 2, wherein, The driving assembly comprises: a servo driver (7) arranged on the detection plate (1); a first transmission shaft (8a) fixedly connected with an output shaft of the servo driver (7) and provided with a roller (9) thereon; a second transmission shaft (8b) arranged on the detection plate (1) and cooperated with the first transmission shaft (8a) and also provided with a roller (9) thereon; a driving belt (10) arranged on the roller (9) of the first transmission shaft (8a) and the roller (9) of the second transmission shaft (8b) and connected with the slide block (3) and moving synchronously with the driving belt (10).

4. The PVB web shrinkage detection apparatus of claim 2 or 3, wherein, A vacuum adsorption unit is arranged on the top of the slide block (3).

5. The PVB web shrinkage detection apparatus of claim 4, wherein, The vacuum adsorption unit comprises: an adsorption cavity (15) arranged on the top of the slide block (3); an adsorption plate (16) arranged on the adsorption cavity (15); a negative pressure machine (17) connected with a pipe of the adsorption cavity (15) and used for providing negative pressure for the adsorption cavity (15) so that the adsorption plate (16) adsorbs the PVB film; a control valve (18) arranged on a connecting pipe between the negative pressure machine (17) and the adsorption cavity (15).

6. The PVB web shrinkage detection apparatus of claim 5, wherein, The adsorption plate (16) is provided with a plurality of adsorption holes (19).

7. The PVB web shrinkage detection apparatus of claim 2, wherein, Two slide rails (2) are arranged on the detection plate (1).

8. The PVB web shrinkage detection apparatus of claim 1, wherein, The optical detection module (5) comprises: an X-axis driving module (11) arranged on the detection plate (1) through a support column (14); a Y-axis driving module (12) movably arranged on the X-axis driving module (11); an optical detection unit (13) arranged at the end of the Y-axis driving module (12).

9. The PVB web shrinkage detection apparatus of claim 1, wherein, The device further comprises a control panel connected with the control module and used for controlling the conveying mechanism and the optical detection module (5).

10. The PVB web shrinkage detection apparatus of claim 1, wherein, The device further comprises a display screen (20) arranged on the detection plate (1) and connected with the control module.

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