Film cross drawing device with gap detection

Abstract

This utility model discloses a film transverse stretching device with gap detection function, including two track guide plate support assemblies, two track guide plates, two chains, several chain clamps, and several gap detection components. The track guide plate support assemblies are disposed on the top surface of the base plate, and the two track guide plates are respectively disposed on the top of the corresponding track guide plate support assemblies. The two chains are respectively tractably disposed on the corresponding track guide plates, and several chain clamps are evenly distributed along the length of each chain. Several gap detection components are disposed on the two track guide plates, and the gap detection components are used to detect the gap formed between the bottom surface of the chain clamp and the top surface of the track guide plate. This solution solves the problem that existing film transverse stretching devices rely on manual visual inspection when detecting the collision between the chain clamp and the track guide plate. When facing the large-scale inspection needs of multiple production lines, multiple devices, or long-distance track guide plates in a single device, it is not only time-consuming and labor-intensive, but also prone to the problem of missed detection.

Description

Technical Field

[0001] This utility model relates to the field of thin film production and processing technology, specifically a thin film transverse stretching device with gap detection function. Background Technology

[0002] In the field of film production and processing, the film stretching device is a key piece of equipment for achieving film stretching and shaping. It uses chain clamps to hold the film edges and move the film along the stretching direction, working in conjunction with a transverse stretching mechanism to achieve lateral expansion of the film, ultimately resulting in the finished film. Existing film stretching devices mainly include a guide rail, a drive chain, and chain clamps. The chain clamps are fixedly installed on the drive chain, while the guide rail provides guidance and support for the movement of the chain and chain clamps. Since the precision of the fit between the chain clamps and the guide rail directly affects the stable operation of the device and the quality of the finished film, they must always maintain a reasonable clearance. Collisions can cause minor wear on components, or even lead to film clamping misalignment or machine shutdown, affecting production progress.

[0003] However, when existing film stretching devices detect collisions between chain clamps and guide plates, the gap between them is located inside the device and is obscured by the chain structure. Workers must use flashlights or other lighting tools to shine light into the gap and visually inspect for contact marks or signs of collision. This manual inspection method is not only time-consuming and labor-intensive, and inefficient when dealing with large-scale inspection needs across multiple production lines, multiple devices, or long-distance guide plates in a single device, but it is also prone to omissions. Utility Model Content

[0004] To address the aforementioned shortcomings, this utility model proposes a film transverse stretching device with gap detection function. The purpose is to solve the problem that existing film transverse stretching devices rely on manual visual inspection when detecting the collision between the chain clamp and the track guide plate. When faced with the large-scale inspection needs of multiple production lines, multiple devices, or long-distance track guide plates in a single device, it is not only time-consuming and labor-intensive, but also prone to detection omissions.

[0005] To achieve this goal, the present invention adopts the following technical solution: A film transverse stretching device with gap detection function includes a base plate, an infeed guide roller assembly, an outfeed guide roller assembly, at least two track guide plate support assemblies, at least two track guide plates, at least two chains, several chain clamps, and several gap detection assemblies. The feed guide roller assembly, the discharge guide roller assembly, and the two track guide plate support assemblies are all disposed on the top surface of the base plate. The feed guide roller assembly and the discharge guide roller assembly are distributed front to back. The feed guide roller assembly is used to guide the film to be laterally stretched into the inside of the film stretching device, and the discharge guide roller assembly is used to guide the laterally stretched film out to the outside of the film stretching device. The two track guide plate support assemblies are located between the feed guide roller assembly and the discharge guide roller assembly. The two track guide plate support assemblies are symmetrically distributed left and right. The two track guide plates are respectively disposed on the top of the corresponding track guide plate support assembly, and the track guide plate support assembly is used to support the track guide plate. The two chains are respectively tractably disposed on the corresponding track guide plates. Each chain has a plurality of chain clamps evenly distributed along its length direction. A gap is formed between the bottom surface of the chain clamp and the top surface of the track guide plate. The two track guide plates are respectively provided with a plurality of gap detection components. The gap detection components are used to detect the gap to determine whether the chain clamp and the track guide plate collide.

[0006] Preferably, the gap detection assembly includes a fixing plate, a protective housing, a laser sensor, an adjusting screw, and an adjusting nut. The protective housing has an opening on one side, and the adjusting screw is arranged in the vertical direction. The fixing plate is installed on the bottom surface of the track guide plate, the protective housing is fixedly connected to one side of the fixing plate, and the opening of the protective housing faces the gap. The adjusting screw is movably inserted through the fixing plate, the laser sensor is installed at the upper end of the adjusting screw, and the laser sensor is located inside the protective housing. The adjusting nut is threadedly connected to the adjusting screw, and the adjusting nut is located below the fixing plate. When it is necessary to move the adjusting screw up and down to adjust the position of the laser sensor, the adjusting nut is loosened to move it away from the bottom surface of the fixing plate. When it is necessary to fix the adjusting screw, the adjusting nut is tightened to make it fit tightly against the bottom surface of the fixing plate.

[0007] Preferably, the gap detection component further includes two supplementary lights, both of which are installed on the inner sidewall of the protective housing. The two supplementary lights are symmetrically distributed front to back, and the light emission direction of the two supplementary lights is towards the gap. The laser sensor is located below the two supplementary lights.

[0008] Preferably, the system also includes a controller, and the gap detection component further includes a camera, which is mounted on the inner wall of the protective housing and located between the two fill lights. The camera is communicatively connected to the controller.

[0009] Preferably, the gap detection component further includes two signal lines, both of which are installed on the top of the protective housing, are symmetrically distributed front and back, and are communicatively connected to the controller.

[0010] Preferably, the gap detection component further includes a display screen, which is mounted on the outside of the protective housing and is communicatively connected to the controller.

[0011] Preferably, the track guide plate support assembly includes a plurality of support columns, the top ends of which are connected to the bottom surface of the track guide plate, and the plurality of support columns are evenly arranged along the length direction of the track guide plate.

[0012] Preferably, it also includes four sprockets, with two sprockets rotatably mounted on the two track guide plates, and two chains respectively sleeved on the corresponding two sprockets.

[0013] The technical solution provided by this utility model can include the following beneficial effects: This solution utilizes multiple gap detection components deployed on the track guide plate to monitor the gap between the chain clamp and the corresponding track guide plate at different locations in real time, thereby accurately determining whether a collision has occurred. Compared to traditional manual inspection methods, this solution employs automated inspection. When faced with large-scale inspection tasks involving multiple production lines, multiple devices, or long-distance track guide plates on a single device, it not only saves time and labor costs and significantly improves inspection efficiency but also effectively avoids missed inspections. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a transverse stretching device for a thin film with gap detection function; Figure 2 yes Figure 1 A magnified view of a portion of region A in the middle; Figure 3 This is a schematic diagram of a gap detection component according to one embodiment of the present invention.

[0015] The components include: 1. Base plate; 2. Feed guide roller assembly; 3. Discharge guide roller assembly; 4. Track guide plate support assembly; 5. Track guide plate; 6. Chain; 7. Chain clamp; 8. Gap detection assembly; 9. Gap; 10. Sprocket; 41. Support column; 81. Fixing plate; 82. Protective housing; 83. Laser sensor; 84. Adjusting screw; 85. Adjusting nut; 86. Supplemental light; 87. Camera; 88. Signal cable; 89. Display screen. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] In the description of this utility model, it should be understood that the terms "length", "middle", "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "assembly," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] A film transverse stretching device with gap detection function includes a base plate 1, an infeed guide roller assembly 2, an outfeed guide roller assembly 3, at least two track guide plate support assemblies 4, at least two track guide plates 5, at least two chains 6, several chain clamps 7, and several gap detection assemblies 8. The feed guide roller assembly 2, the discharge guide roller assembly 3, and the two track guide plate support assemblies 4 are all disposed on the top surface of the base plate 1. The feed guide roller assembly 2 and the discharge guide roller assembly 3 are distributed front to back. The feed guide roller assembly 2 is used to guide the film to be laterally stretched (not shown in the figure) into the film stretching device, and the discharge guide roller assembly 3 is used to guide the laterally stretched film out to the outside of the film stretching device. The two track guide plate support assemblies 4 are located between the feed guide roller assembly 2 and the discharge guide roller assembly 3, and the two track guide plate support assemblies 4 are positioned to the left and right of each other. The two track guide plates 5 are symmetrically distributed on the right and are respectively disposed on the top of the corresponding track guide plate support assembly 4. The track guide plate support assembly 4 is used to support the track guide plate 5. The two chains 6 are respectively tractably disposed on the corresponding track guide plates 5. Each chain 6 is evenly provided with a plurality of chain clips 7 along its length direction. A gap 9 is formed between the bottom surface of the chain clip 7 and the top surface of the track guide plate 5. The two track guide plates 5 are respectively provided with a plurality of gap detection components 8. The gap detection components 8 are used to detect the gap 9 to determine whether the chain clip 7 collides with the track guide plate 5.

[0020] This solution provides a thin film transverse stretching device with gap detection function. In this embodiment, for example... Figure 1-2 As shown, two of each of the track guide plate support assembly 4, the track guide plate 5, and the chain 6 are provided. The device also includes a motor (not shown) for driving film transport and a controller (not shown), and the controller is communicatively connected to the gap detection assembly 8. Operators can preset a gap threshold on the controller to provide a judgment standard for subsequent collision detection. When the film needs to be stretched laterally, the operator first places the film to be stretched laterally at the designated position of the film stretching device. The film will first pass through the infeed guide roller assembly 2 for initial positioning; then, the chain clamps 7 on the left and right sides will clamp the left and right edges of the film to be stretched, ensuring that the film does not shift during the lateral stretching process; finally, the clamped film will pass through the discharge guide roller assembly 3, preparing for subsequent lateral expansion. Subsequently, the motor is started, providing a backward traction force for the film. This traction force can simultaneously drive the infeed guide roller assembly 2, the discharge guide roller assembly 3, and the two chains 6 for coordinated transmission. The transmission of the two chains 6 will further drive the corresponding chain clamps 7 to move synchronously, and the lateral expansion of the film is achieved through the lateral displacement of the chain clamps 7.

[0021] When detecting the collision between the chain clamp 7 and the track guide plate 5, the gap detection component 8 is activated. The gap detection component 8 can detect the length of the gap 9 between the bottom surface of the chain clamp 7 and the top surface of the track guide plate 5 in real time and feed this value back to the controller. The controller will automatically compare the received gap 9 length value with a preset gap threshold. If the received gap 9 length value is less than the gap threshold, it is determined that there is a risk of collision between the chain clamp 7 and the track guide plate 5 or a collision has occurred, and an alarm signal is immediately issued to remind the staff to stop the machine in time to check and troubleshoot the fault. If the received gap 9 length value is greater than or equal to the gap threshold, it is determined that the chain clamp 7 and the track guide plate 5 are operating normally and there is no risk of collision. The film stretching device can continue to operate normally to ensure the continuity and safety of the production process.

[0022] To further clarify, both the feed guide roller assembly 2 and the discharge guide roller assembly 3 adopt a guide roller combination structure commonly used in the art, and this structure will not be described in detail in this solution.

[0023] In this solution, multiple gap detection components 8 are installed on the track guide plate 5 to monitor the gap 9 between the chain clamp 7 and the corresponding track guide plate 5 at different positions in real time, thereby accurately determining whether a collision has occurred between the chain clamp 7 and the track guide plate 5. Compared with traditional manual inspection methods, this solution adopts an automated inspection method. When facing large-scale inspection tasks involving multiple production lines, multiple devices, or long-distance track guide plates on a single device, it not only saves time and labor costs and significantly improves inspection efficiency, but also effectively avoids missed inspections.

[0024] Preferably, the gap detection assembly 8 includes a fixing plate 81, a protective housing 82, a laser sensor 83, an adjusting screw 84, and an adjusting nut 85. The protective housing 82 has an opening 820 on one side, and the adjusting screw 84 is arranged in the vertical direction. The fixing plate 81 is installed on the bottom surface of the track guide plate 5. The protective housing 82 is fixedly connected to one side of the fixing plate 81, and the opening 820 of the protective housing 82 faces the gap 9. The adjusting screw 84 is movably inserted through the fixing plate 81. The laser sensor 83 is installed at the upper end of the adjusting screw 84 and is located inside the protective housing 82. The adjusting nut 85 is threadedly connected to the adjusting screw 84 and is located below the fixing plate 81. When it is necessary to move the adjusting screw 84 up and down to adjust the position of the laser sensor 83, the adjusting nut 85 is loosened to move it away from the bottom surface of the fixing plate 81. When it is necessary to fix the adjusting screw 84, the adjusting nut 85 is tightened to make it fit tightly against the bottom surface of the fixing plate 81.

[0025] In this embodiment, as Figure 2-3 As shown, since the opening 820 of the protective housing 82 faces the gap 9, and the laser sensor 83 is located inside the protective housing 82, it can be ensured that the detection method of the laser sensor 83 can be accurately aligned with the gap 9. When the position of the laser sensor 83 needs to be adjusted to ensure accurate alignment with the gap 9 due to installation deviation or equipment debugging requirements, the operator first loosens the adjusting nut 85, moving it away from the bottom surface of the fixing plate 81. At this time, the adjusting screw 84 can move up and down. By moving the adjusting screw 84 up and down, the laser sensor 83 is moved up and down to the target position that can be accurately aligned with the gap 9. Finally, the adjusting nut 85 is tightened so that it is pressed tightly against the bottom surface of the fixing plate 81. The position of the adjusting screw 84 is locked by the friction between the adjusting nut 85 and the fixing plate 81.

[0026] When it is necessary to detect the gap 9 between the chain clamp 7 and the track guide plate 5, the position of the laser sensor 83 is first adjusted so that it is precisely aligned with the gap 9; then, the laser sensor 83 can accurately collect the gap 9 between the chain clamp 7 and the track guide plate 5.

[0027] To further explain, the protective housing 82 is configured to provide dustproof and impact-proof protection for the laser sensor 83, thereby extending the service life of the laser sensor 83.

[0028] Preferably, the gap detection assembly further includes two supplementary lights 86, both of which are mounted on the inner sidewall of the protective housing 82. The two supplementary lights 86 are symmetrically distributed front to back, and their light emission directions are both towards the gap 9. The laser sensor 83 is located below the two supplementary lights 86. In this embodiment, because the light emission directions of the two supplementary lights 86 are both towards the gap 9 and the laser sensor 83 is located below the two supplementary lights 86, the arrangement of the two supplementary lights 86 can provide sufficient and uniform light source for the detection process of the laser sensor 83, thereby improving the accuracy of the detection data.

[0029] Preferably, it also includes a controller (not shown in the figure), and the gap detection component 8 further includes a camera 87, which is mounted on the inner wall of the protective housing 82. The camera 87 is located between the two supplementary lights 86, and the camera 87 is communicatively connected to the controller. In this embodiment, as... Figure 3 As shown, the camera 87 is configured to capture images of the gap 9 between the chain clamp 7 and the track guide plate 5 in real time, and transmit these images to the controller for image processing and analysis in real time, thereby assisting in verifying the accuracy of the detection data of the laser sensor 83.

[0030] Preferably, the gap detection component 8 further includes two signal lines 88, both of which are mounted on the top of the protective housing 82, are symmetrically distributed front to back, and are communicatively connected to the controller. In this embodiment, as... Figure 3 As shown, since both signal lines 88 are communicatively connected to the controller, the data collected in real time by the laser sensor 83 and the camera 87 can be continuously and stably transmitted to the controller.

[0031] Preferably, the gap detection component 8 further includes a display screen 89, which is mounted on the outside of the protective housing 82 and is communicatively connected to the controller. In this embodiment, as... Figure 2As shown, the display screen 89 is configured to display key information processed by the controller in real time, including the length value of the gap 9, the image captured by the camera 87, and abnormal alarms, so that staff can have a clearer and more intuitive understanding of the operating status of the film stretching device.

[0032] Preferably, the track guide plate support assembly 4 includes a plurality of support columns 41, the top ends of which are all connected to the bottom surface of the track guide plate 5, and the plurality of support columns 41 are evenly arranged along the length direction of the track guide plate 5. In this embodiment, as shown... Figure 1 As shown, since several of the support columns 41 are evenly arranged along the length of the track guide plate 5 and connected to the bottom surface of the track guide plate 5, it is beneficial to support the track guide plate 5 more stably, thereby ensuring the stability of the transmission between the chain 6 and the chain clamp 7.

[0033] Preferably, it also includes four sprockets 10, with two track guide plates 5 rotatably mounted on two of the sprockets 10 respectively, and two chains 6 respectively sleeved on the corresponding two sprockets 10. In this embodiment, as... Figure 1 As shown, the "one chain to two wheels" enveloping meshing structure can effectively increase the contact area between the chain 6 and the sprocket 10, making the meshing between the two tighter and more secure, thereby improving the stability of the chain clamp 7 transmission.

[0034] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A film cross-chamber device having a gap detection function, characterized by: It includes a base plate, an infeed guide roller assembly, an outfeed guide roller assembly, at least two track guide plate support assemblies, at least two track guide plates, at least two chains, several chain clamps, and several gap detection assemblies; The feed guide roller assembly, the discharge guide roller assembly, and the two track guide plate support assemblies are all disposed on the top surface of the base plate. The feed guide roller assembly and the discharge guide roller assembly are distributed front to back. The feed guide roller assembly is used to guide the film to be laterally stretched into the inside of the film stretching device, and the discharge guide roller assembly is used to guide the laterally stretched film out to the outside of the film stretching device. The two track guide plate support assemblies are located between the feed guide roller assembly and the discharge guide roller assembly. The two track guide plate support assemblies are symmetrically distributed left and right. The two track guide plates are respectively disposed on the top of the corresponding track guide plate support assembly, and the track guide plate support assembly is used to support the track guide plate. The two chains are respectively tractably disposed on the corresponding track guide plates. Each chain has a plurality of chain clamps evenly distributed along its length direction. A gap is formed between the bottom surface of the chain clamp and the top surface of the track guide plate. The two track guide plates are respectively provided with a plurality of gap detection components. The gap detection components are used to detect the gap to determine whether the chain clamp and the track guide plate collide.

2. The film cross-drawing apparatus having a gap detection function according to claim 1, characterized in that: The gap detection assembly includes a fixed plate, a protective housing, a laser sensor, an adjusting screw, and an adjusting nut. An opening is provided on one side of the protective housing, and the adjusting screw is arranged in the vertical direction. The fixing plate is installed on the bottom surface of the track guide plate, the protective housing is fixedly connected to one side of the fixing plate, and the opening of the protective housing faces the gap. The adjusting screw is movably inserted through the fixing plate, the laser sensor is installed at the upper end of the adjusting screw, and the laser sensor is located inside the protective housing. The adjusting nut is threadedly connected to the adjusting screw, and the adjusting nut is located below the fixed plate; When it is necessary to move the adjusting screw up and down to adjust the position of the laser sensor, loosen the adjusting nut to move it away from the bottom surface of the fixing plate; when it is necessary to fix the adjusting screw, tighten the adjusting nut to make it fit tightly against the bottom surface of the fixing plate.

3. The film cross-chamber device with gap detection function according to claim 2, characterized in that: The gap detection component also includes two supplementary lights, both of which are installed on the inner sidewall of the protective housing. The two supplementary lights are symmetrically distributed front and back, and the light emission direction of the two supplementary lights is towards the gap. The laser sensor is located below the two supplementary lights.

4. The film cross-drawing apparatus having a gap detection function according to claim 3, characterized in that: It also includes a controller, and the gap detection component further includes a camera, which is mounted on the inner wall of the protective housing and located between the two fill lights. The camera is communicatively connected to the controller.

5. The film cross-pulling device with gap detection function according to claim 4, characterized in that: The gap detection component also includes two signal lines, both of which are installed on the top of the protective housing. The two signal lines are symmetrically distributed front and back, and both signal lines are communicatively connected to the controller.

6. The film cross-chamber device with gap detection function according to claim 5, characterized in that: The gap detection component also includes a display screen, which is mounted on the outside of the protective housing and is communicatively connected to the controller.

7. The film cross-chamber device with gap detection function according to claim 1, characterized in that: The track guide plate support assembly includes a plurality of support columns, the top ends of which are connected to the bottom surface of the track guide plate, and the plurality of support columns are evenly arranged along the length direction of the track guide plate.

8. The film cross-chamber device with gap detection function according to claim 1, characterized in that: It also includes four sprockets, with two sprockets rotatably mounted on each of the two track guide plates, and two chains respectively fitted onto the corresponding two sprockets.

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