Multifunctional surface treatment roller set for plastic film production

Abstract

The utility model is suitable for the technical field of plastic film processing, provide plastic film production multifunctional surface treatment roll group, frame, detachable installation in frame's processing roll and with processing roll's automatic calibration device of cooperation, processing roll is modularization roller body, at least one surface treatment function unit is integrated to the outer peripheral surface, and the function unit is at least one of corona unit, coating unit or embossing unit, this device processing roll can be through modularization design and quick release structure etc. Realize quick safe dismounting, can switch corona, glue coating, embossing procedure according to different production demand, greatly shorten equipment adjustment time, improve production efficiency and the flexibility of responding market demand, again in the working process, with the help of automatic calibration device real -time monitoring adjustment position, cooperate the stable support of U -shaped groove, ensure that processing roll is always in the best and stable working state, all -round guarantee the high efficiency and stability of production.

Description

Technical Field

[0001] This utility model belongs to the field of plastic film processing technology, and in particular relates to a multifunctional surface treatment roller assembly for plastic film production. Background Technology

[0002] With the booming development of the plastic film industry, its application fields are constantly expanding, covering many industries such as packaging, electronics, and new energy. The requirements for the surface performance of plastic film are also becoming increasingly diversified and refined. Surface treatment, as the core link in plastic film production, directly determines the key characteristics of the product, such as adhesion, barrier properties, and optical properties, thereby affecting its final application effect and market competitiveness.

[0003] However, traditional plastic film surface treatment production lines have significant technical limitations, which severely restrict the improvement of production efficiency and product quality. Currently, common surface treatment processes such as corona treatment, coating, and embossing usually rely on independent specialized equipment. Each type of equipment can only perform a single treatment function. For example, corona treatment equipment uses high voltage to excite gas discharge and form polar groups on the surface of the plastic film to enhance film adhesion. Coating equipment requires precise control of the amount of adhesive extruded and the speed of the rollers to evenly coat the film surface with adhesive layers of specific functions. Embossing equipment uses patterned rollers to imprint specific textures on the film surface, giving it a unique appearance and texture.

[0004] When production demands change and processes need to be switched, the operation of traditional production lines is extremely cumbersome; multiple shutdowns are required to replace the entire roller assembly or make complex adjustments to the equipment parameters.

[0005] In addition, the step-by-step operation mode of independent equipment has brought a series of other problems. On the one hand, multiple machines occupy a lot of production space, increasing the cost of factory construction and equipment maintenance. On the other hand, during the frequent start-up and shutdown of the equipment, the tension of the membrane material is difficult to maintain and is prone to fluctuation. Utility Model Content

[0006] This utility model provides a multi-functional surface treatment roller assembly for plastic film production, which aims to solve the problems of existing plastic film surface treatment production lines that rely on independent equipment for each process, require multiple shutdowns to change rollers and adjust parameters for process switching, resulting in long time consumption and low efficiency, and also increase the cost of multiple machines occupying space, and cause unstable film tension due to frequent start-stop.

[0007] This invention is achieved as follows: a multi-functional surface treatment roller assembly for plastic film production includes:

[0008] A frame, a processing roller detachably mounted in the frame, and an automatic calibration device that works in conjunction with the processing roller;

[0009] The processing roller is a modular roller body, with at least one surface treatment functional unit integrated on its outer peripheral surface. The functional unit is at least one of corona unit, coating unit or embossing unit.

[0010] The corona unit includes a plasma generator and a high-voltage electrode integrated onto the surface of the roller;

[0011] The coating unit includes a processing roller with a built-in glue storage chamber, which is connected to an external glue source via a glue supply pipe;

[0012] The embossing unit includes a contact layer sleeved on the processing roller, and the outer surface of the contact layer is processed with patterns;

[0013] The processing roller is detachably connected to the frame via a quick-release structure.

[0014] Preferably, the quick-release structure includes:

[0015] Positioning components: These are mounted on flanges at both ends of the processing roller and include locking bolts. Threaded holes are provided at corresponding positions on the frame. The locking bolts pass through the flanges of the processing roller and are screwed into the threaded holes for fastening.

[0016] Elastic safety buckle: It is set on the connection side between the processing roller and the frame, including a spring and a hook; one end of the spring is fixed to the side of the flange, and the other end is connected to the hook. The side wall of the frame is provided with a groove that matches the hook, and the hook engages with the groove.

[0017] Preferably, the automatic calibration device includes:

[0018] A laser rangefinder sensor group, mounted on the top of the frame, consists of 3-5 laser rangefinder sensors evenly distributed along the width of the processing roller surface.

[0019] The laser rangefinder sensor's detection end is perpendicularly pointed to the roller surface of the corona unit.

[0020] Preferably, it further includes a lifting drive mechanism, which is disposed at the bottom of the frame and includes:

[0021] A vertically mounted lead screw, the bottom of which is fixedly connected to the output shaft of the drive motor via a coupling;

[0022] The slider is threadedly connected to the lead screw, and its two sides are slidably connected to the frame via linear guide rails;

[0023] The frame is fixed to the side of the slider by bolts.

[0024] Preferably, the surface of the processing roller is provided with an annular pressure plate along the circumference, and the contact layer is sandwiched between the processing roller and the pressure plate, and is detachably pressed and fixed by bolts.

[0025] Preferably, the side of the frame is provided with an inspection door, which is connected to the frame by a hinge, and its inner edge is provided with a sealing strip.

[0026] Preferably, the top of the frame is provided with a U-shaped groove that matches the cylindrical shape of the processing roller shaft, with a depth of 1 / 3 to 1 / 2 of the roller shaft diameter.

[0027] Preferably, the processing roller has glue outlet holes evenly distributed along its axial direction on its outer periphery.

[0028] Compared with the prior art, the embodiments of this application have the following main advantages:

[0029] Firstly, the processing rollers of this device adopt a modular design and quick-release structure, combined with positioning components and elastic safety buckles, enabling rapid and safe assembly and disassembly on the frame. This allows for the quick replacement of units with different surface treatment functions when facing different production needs, and rapid switching between corona treatment, gluing, and embossing processes, greatly shortening equipment adjustment time, improving production efficiency, and enhancing the flexibility of enterprises to meet diverse market demands.

[0030] Secondly, during the operation of the processing roller, the automatic calibration device runs continuously. The laser rangefinder sensor group monitors the position of the processing roller in real time. Once a deviation is detected, the control system immediately generates an adjustment command to adjust the actuator to precisely move the processing roller so that it is always in the optimal working position. At the same time, the U-shaped groove design provides stable support for the roller shaft, ensuring that the processing roller runs smoothly and avoiding shaking or displacement. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0032] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0033] Figure 3 This is a front structural diagram of the present invention;

[0034] Figure 4 This is a side view of the structure of this utility model;

[0035] Figure 5 This is a front sectional view of the structure of this utility model;

[0036] In the diagram: 1. Frame; 2. Processing roller; 3. Glue supply pipe; 4. Contact layer; 5. Flange; 6. U-groove; 7. Locking bolt; 8. Glue outlet; 9. Threaded hole; 10. Elastic safety buckle; 101. Spring; 102. Hook; 11. Slot; 12. Laser rangefinder sensor; 13. Lead screw; 14. Drive motor; 15. Slider; 16. Linear guide rail; 17. Pressure plate; 18. Inspection door. Detailed Implementation

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0038] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0039] This utility model embodiment provides a multifunctional surface treatment roller assembly for plastic film production, such as... Figure 1-5 As shown, it includes a frame 1, a processing roller 2 detachably installed in the frame 1, and an automatic calibration device that cooperates with the processing roller 2;

[0040] The processing roller 2 is a modular roller body, with at least one surface treatment functional unit integrated on its outer peripheral surface. The functional unit is at least one of corona unit, coating unit or embossing unit.

[0041] The corona unit includes a plasma generator and a high-voltage electrode integrated on the surface of the roller 2;

[0042] The coating unit includes a processing roller 2 with a built-in glue storage chamber, which is connected to an external glue source via a glue supply pipe 3;

[0043] The embossing unit includes a processing roller 2 with a patterned surface;

[0044] The processing roller 2 is detachably connected to the frame 1 via a quick-release structure.

[0045] It should be noted that existing plastic film surface treatment production lines rely on independent equipment for each process, requiring multiple shutdowns for roller changes and parameter adjustments during process switching. This is time-consuming and inefficient, and the multiple machines occupy a significant amount of space, increasing costs. Frequent start-ups and shutdowns also cause unstable film tension. This solution achieves rapid process switching through the modular and quick-release structure of the treatment roller 2, significantly shortening equipment adjustment time to improve production efficiency and flexibility in responding to market demands. At the same time, the automatic calibration device and U-groove design ensure that the treatment roller 2 is always in the optimal working position and operates smoothly. The synergistic effect of these two features improves production efficiency while ensuring stable product processing quality.

[0046] Specifically, in this embodiment, the solution mainly includes a frame 1, which serves as the support frame for the entire equipment and provides a stable installation foundation for other components. The processing roller 2 adopts a modular design and can be easily disassembled and installed on the frame 1 through a quick-release structure, making it convenient to quickly replace according to different production needs.

[0047] The outer circumferential surface of the processing roller 2 integrates surface treatment functional units, including corona treatment units, coating units, or embossing units. When the corona treatment unit is used, the plasma generator and high-voltage electrode integrated on the surface of the processing roller 2 work together to generate a corona discharge phenomenon, which activates the surface of the plastic film, enhances its surface energy, and improves the adhesion of subsequent processing. If the coating unit is used, the processing roller 2 with a built-in glue storage chamber is connected to an external glue source through the glue supply pipe 3. The glue liquid enters the glue storage chamber from the external glue source through the glue supply pipe 3 and is then evenly coated on the surface of the plastic film to achieve a specific coating effect. When the embossing unit is used, the contact layer 4 with a patterned surface is imprinted on the plastic film during rotation, giving the plastic film a unique appearance and texture.

[0048] Meanwhile, the automatic calibration device working in conjunction with the treatment roller 2 operates continuously, monitoring the position and working status of the treatment roller 2 in real time. Once a deviation is detected, it will be automatically adjusted and calibrated to ensure that the treatment roller 2 is always in the optimal working position, thus ensuring the stable and uniform quality of the plastic film surface treatment.

[0049] In a further preferred embodiment of this utility model, such as Figure 5 As shown, the quick-release structure includes:

[0050] Positioning components: The flanges 5 at both ends of the processing roller 2 are provided with locking bolts 7, and the corresponding positions of the frame 1 are provided with threaded holes 9; the locking bolts 7 pass through the flanges 5 of the processing roller 2 and are screwed into the threaded holes 9 for fastening.

[0051] Elastic safety buckle 10: It is set on the connection side between the processing roller 2 and the frame 1, including spring 101 and hook 102; one end of spring 101 is fixed to the side of flange 5, and the other end is connected to hook 102. The side wall of frame 1 is provided with a groove 11 that matches hook 102, and hook 102 is engaged with groove 11.

[0052] In this embodiment, positioning components are provided on the flanges 5 at both ends of the processing roller 2. The positioning pins therein are precisely inserted into the positioning holes pre-drilled at the corresponding positions of the frame 1. This step can quickly determine the approximate installation position of the processing roller 2 on the frame 1 and ensure the accuracy of the installation direction.

[0053] After positioning is completed, tightening is performed. The locking bolt 7 is passed through the flange 5 of the processing roller 2, screwed into the threaded hole 9 at the corresponding position of the frame 1 and tightened. Through the engagement of the threads, the processing roller 2 is tightly connected to the frame 1 to prevent the processing roller 2 from loosening or shifting during operation.

[0054] Meanwhile, the elastic safety buckle 10 set on the connection side between the processing roller 2 and the frame 1 has one end of its spring 101 fixed to the side of the flange 5 and the other end connected to the hook 102. When the processing roller 2 is installed in place, the elastic force of the spring 101 pushes the hook 102, so that it accurately engages in the slot 11 that matches the hook 102 opened on the side wall of the frame 1. The engagement connection between the hook 102 and the slot 11 provides additional safety protection for the connection between the processing roller 2 and the frame 1, further enhances the stability of the connection, and prevents the processing roller 2 from falling off due to equipment vibration or other external forces.

[0055] When it is necessary to disassemble the processing roller 2, the operation sequence is reversed. First, loosen the locking bolt 7 to release the threaded fastening effect; then manually press the hook 102 to overcome the elastic force of the spring 101, so that the hook 102 is disengaged from the slot 11, and the engagement connection of the elastic safety buckle 10 is released; finally, the processing roller 2 can be removed from the frame 1. The entire quick-release structure realizes the quick and safe disassembly and assembly of the processing roller 2 on the frame 1 through the coordinated work of the positioning component and the elastic safety buckle 10.

[0056] In a further preferred embodiment of this utility model, such as Figure 3 As shown, the automatic calibration device includes:

[0057] 12 sets of laser rangefinders are installed on the top of the frame 1, including 3-5 laser rangefinders 12 evenly distributed along the width direction of the processing roller 2.

[0058] The laser rangefinder sensor 12 (LDM301) has its detection end pointing vertically toward the roller surface of the corona unit.

[0059] In this embodiment, this layout can fully cover the roller surface, avoiding blind spots in monitoring. The detection end of each sensor is perpendicular to the roller surface of the corona unit and continuously emits a laser beam.

[0060] After the laser beam is precisely projected onto the roller surface, it will be reflected. The sensor quickly receives the reflected laser and, based on the time difference between the laser emission and reception, accurately calculates the distance between itself and the corona unit roller surface through a built-in algorithm. These real-time measured distance data are continuously transmitted to the matching control system. Once a deviation is found between the measured distance and the standard value, it indicates that the position of the processing roller 2 has shifted, which may affect the corona treatment effect.

[0061] At this time, the control system will immediately generate a precise adjustment command based on the magnitude and direction of the deviation, and transmit it to the adjustment actuator connected to the processing roller 2. After receiving the command, the adjustment actuator will quickly take corresponding actions and move the processing roller 2 precisely until the distance data measured by all laser rangefinders 12 are restored to the preset standard value range. Through such continuous monitoring, comparison and adjustment, the automatic calibration device ensures that the processing roller 2 is always in the best working position, and guarantees the high quality and stability of the corona treatment on the surface of the plastic film.

[0062] In a further preferred embodiment of this utility model, such as Figure 5 As shown, it also includes a lifting drive mechanism, which is located at the bottom of the frame 1 and includes:

[0063] A vertically arranged lead screw 13 is fixedly connected at its bottom to the output shaft of a drive motor 14 via a coupling;

[0064] The slider 15 is threadedly connected to the lead screw 13, and its two sides are slidably connected to the frame 1 through the linear guide rails 16;

[0065] The frame 1 is fixedly connected to the side of the slider 15 by bolts.

[0066] In this embodiment, when the height of the processing roller 2 needs to be adjusted, the drive motor 14 starts, and its output shaft transmits the rotational power to the vertically set lead screw 13 at the bottom in a stable and accurate manner through the coupling. The lead screw 13 starts to rotate under the drive of the drive motor 14. Since the slider 15 and the lead screw 13 are connected by a thread, according to the principle of thread transmission, the rotational motion of the lead screw 13 will be converted into the linear motion of the slider 15 along the axis of the lead screw 13.

[0067] To ensure the smoothness and precision of the movement of slider 15, slider 15 is slidably connected to frame 1 on both sides through linear guide rails 16. The linear guide rails 16 provide precise guidance for slider 15, effectively limiting the movement trajectory of slider 15, so that it can only move in a straight line in the vertical direction, avoiding the slider 15 from deviating or shaking during the movement, thereby ensuring the accuracy of the height adjustment of processing roller 2.

[0068] The top of the slider 15 is equipped with a frame 1; as the slider 15 moves up and down, the frame 1 will also move up and down synchronously; and the two ends of the roller shaft of the processing roller 2 are rotatably installed in the frame 1 through bearings. This design allows the processing roller 2 to maintain a free rotation state while moving up and down with the frame 1, without affecting its normal surface treatment work.

[0069] In a further preferred embodiment of this utility model, such as Figure 5As shown, an annular pressure plate 17 is provided on the surface of the processing roller 2 along the circumferential direction, and the contact layer 4 is sandwiched between the processing roller 2 and the pressure plate 17, and is detachably pressed and fixed by bolts.

[0070] In this embodiment, the annular pressure plate 17 is adapted to the outer circumference of the processing roller 2. When installing the contact layer 4, it is accurately clamped between the processing roller 2 and the annular pressure plate 17 and ensured to be flat. Finally, bolts are passed through the pressure plate 17 and screwed into the threaded hole 9 of the processing roller 2. After tightening the bolts, the pressure plate 17 is pressed to tightly press the contact layer 4 onto the processing roller 2, which is both firmly fixed and convenient for subsequent disassembly and replacement of the contact layer 4 due to the bolt connection.

[0071] In a further preferred embodiment of this utility model, such as Figure 1-2 As shown, the side of the frame 1 is provided with an inspection door 18, which is connected to the frame 1 by a hinge, and its inner edge is provided with a sealing strip.

[0072] In this embodiment, the maintenance door 18 is securely connected to the frame 1 via a hinge, which allows the maintenance door 18 to be opened and closed flexibly around the hinge. This makes it easy for staff to open the maintenance door 18 and enter the internal space of the frame 1 when it is necessary to inspect the equipment. The sealing strip on the inner edge of the maintenance door 18 can fit tightly against the corresponding part of the frame 1 when the maintenance door 18 is closed, providing a good seal and effectively preventing external dust and debris from entering the interior of the frame 1. This protects the internal precision components from contamination and damage, and also reduces noise leakage to a certain extent, ensuring the stability of equipment operation and environmental suitability.

[0073] In a further preferred embodiment of this utility model, such as Figure 1-2 As shown, the top of the frame 1 is provided with a U-shaped groove 6 that matches the cylindrical surface shape of the processing roller 2, and the depth is 1 / 3 to 1 / 2 of the roller diameter.

[0074] In this embodiment, the shape of the U-shaped groove 6 is precisely matched with the cylindrical surface of the roller shaft of the processing roller 2. When the processing roller 2 is installed, the roller shaft can be naturally embedded in the U-shaped groove 6. This matching design can play a preliminary positioning role for the roller shaft, ensuring that the roller shaft is installed in an accurate position and avoiding installation deviation. At the same time, the depth of the U-shaped groove 6 is set to 1 / 3-1 / 2 of the roller shaft diameter, which can provide sufficient support for the roller shaft, ensure the stability of the processing roller 2 during operation, and prevent shaking or displacement due to insufficient support. It also avoids causing too much difficulty for subsequent disassembly, maintenance and other operations due to excessive depth, making it convenient for staff to install and debug the processing roller 2.

[0075] In a further preferred embodiment of this utility model, such as Figure 5 As shown, glue outlet holes 8 are evenly distributed along the axial direction of the outer periphery of the processing roller 2.

[0076] In this embodiment, the processing roller 2 is provided with a material conveying channel. When the material is pumped into the processing roller 2, it will flow along the channel. Since the material outlet holes 8 are evenly distributed along the axial direction of the outer periphery of the processing roller 2, under the action of internal pressure, the material will be evenly squeezed out from these outlet holes 8 onto the surface of the roller body. As the processing roller 2 rotates, the squeezed material is evenly coated on the material to be processed, thereby achieving precise and uniform coating of the material and ensuring the consistency of product processing quality.

[0077] Working principle: When this device is in use, the frame 1 provides a stable and reliable mounting base for other components; the processing roller 2 adopts a modular design and can be easily installed on the frame 1 through a quick-release structure to meet the needs of rapid replacement under different production requirements;

[0078] When installing the processing roller 2, the positioning components are used for preliminary positioning. The flanges 5 at both ends of the processing roller 2 are equipped with positioning components. The positioning pins are precisely inserted into the positioning holes pre-drilled at the corresponding positions on the frame 1 to quickly determine the approximate installation position of the processing roller 2 on the frame 1 and ensure the accuracy of the installation direction.

[0079] After positioning, tightening is performed; the locking bolt 7 is passed through the flange 5 of the processing roller 2, screwed into the threaded hole 9 at the corresponding position on the frame 1 and tightened. Through the engagement of the threads, the processing roller 2 is tightly connected to the frame 1, preventing the processing roller 2 from loosening or shifting during operation. At the same time, the elastic safety buckle 10 set on the connection side between the processing roller 2 and the frame 1 plays its role; one end of its spring 101 is fixed to the side of the flange 5, and the other end is connected to the hook 102. When the processing roller 2 is installed in place, the elastic force of the spring 101 pushes the hook 102, so that it accurately engages in the slot 11 that matches the hook 102 opened on the side wall of the frame 1. The engagement connection between the hook 102 and the slot 11 provides additional safety for the connection between the processing roller 2 and the frame 1, further enhancing the stability of the connection and preventing the processing roller 2 from falling off due to equipment vibration or other external forces.

[0080] After the processing roller 2 is installed, both ends of its roller shaft are rotatably mounted in the U-shaped groove 6 via bearings. The shape of the U-shaped groove 6 precisely matches the cylindrical surface of the roller shaft of the processing roller 2, allowing the roller shaft to naturally embed into the U-shaped groove 6, which serves as a preliminary positioning function to ensure the accurate installation position of the roller shaft and avoid installation misalignment. The depth of the U-shaped groove 6 is set to 1 / 3 to 1 / 2 of the roller shaft diameter, which can provide sufficient support for the roller shaft to ensure the stability of the processing roller 2 during operation and prevent shaking or displacement due to insufficient support, while avoiding excessive depth from causing too much difficulty for subsequent disassembly, maintenance and other operations, making it convenient for staff to install and debug the processing roller 2.

[0081] The outer circumferential surface of the processing roller 2 integrates surface treatment functional units, including a corona unit, a coating unit, or an embossing unit. When the corona unit is used, the plasma generator and high-voltage electrode integrated on the surface of the processing roller 2 work together to generate a corona discharge phenomenon, activating the surface of the plastic film, enhancing its surface energy, and improving the adhesion of subsequent processing. If the coating unit is activated, the processing roller 2 with its built-in glue storage chamber is connected to an external glue source through a glue supply pipe 3. The glue enters the storage chamber from the external glue source through the glue supply pipe 3. The processing roller 2 has a glue conveying channel inside. After the glue is pumped into the processing roller 2, it flows along the channel. Since glue outlet holes 8 are evenly distributed along the axial direction of the outer circumference of the processing roller 2, the glue will be evenly squeezed out from these glue outlet holes 8 under the action of internal pressure. As the processing roller 2 rotates, the extruded rubber is evenly coated onto the material to be processed, thus achieving precise and uniform coating and ensuring consistent product processing quality. When using an embossing unit, the patterned contact layer 4 imprints the pattern onto the plastic film during rotation, giving the plastic film a unique appearance and texture. The annular pressure plate 17 is adapted to the outer circumference of the processing roller 2. When installing the contact layer 4, it is accurately clamped between the processing roller 2 and the annular pressure plate 17 and ensured to be flat. Finally, bolts are passed through the pressure plate 17 and screwed into the threaded hole 9 of the processing roller 2. After tightening the bolts, the pressure plate 17 is pressed to tightly press the contact layer 4 onto the processing roller 2, which is both secure and convenient for subsequent disassembly and replacement of the contact layer 4 due to the bolt connection.

[0082] During the operation of the processing roller 2, an automatic calibration device working in conjunction with the processing roller 2 operates continuously. This device includes 12 sets of laser rangefinders, mounted on the top of the frame 1. The detection end of each laser rangefinder 12 is vertically pointed towards the roller surface of the corona unit, continuously emitting a laser beam. After the laser beam is precisely projected onto the roller surface, it is reflected. The laser rangefinder 12 quickly receives the reflected laser and, based on the time difference between the laser emission and reception, accurately calculates the distance between itself and the roller surface of the corona unit using a built-in algorithm. This real-time measured distance data is continuously transmitted to the supporting control system. Once the measured distance is found to deviate from the standard value... If a deviation exists, it indicates that the position of the processing roller 2 has shifted, which may affect the corona treatment effect. At this time, the control system will immediately generate a precise adjustment command based on the magnitude and direction of the deviation and transmit it to the adjustment actuator connected to the processing roller 2. After receiving the command, the adjustment actuator will quickly take corresponding actions and move the processing roller 2 precisely until the distance data measured by all laser rangefinders 12 are restored to the preset standard value range. Through such continuous monitoring, comparison and adjustment, the automatic calibration device ensures that the processing roller 2 is always in the optimal working position, ensuring the high quality and stability of the plastic film surface treatment.

[0083] When the height of the processing roller 2 needs to be adjusted, the drive motor 14 starts, and its output shaft transmits the rotational power to the vertically mounted lead screw 13 at the bottom in a stable and precise manner through a coupling. The lead screw 13 starts to rotate under the drive of the drive motor 14. Since the slider 15 and the lead screw 13 are connected by a thread, the rotational motion of the lead screw 13 is converted into the linear motion of the slider 15 along the axis of the lead screw 13. To ensure the smoothness and precision of the slider 15's movement, the slider 15 is slidably connected to the frame 1 on both sides through linear guide rails 16. The linear guide rails 16 provide precise guidance for the slider 15, effectively limiting the movement trajectory of the slider 15, so that it can only move in a straight line along the vertical direction, avoiding the slider 15 from deviating or wobbling during the movement, thus ensuring the accuracy of the height adjustment of the processing roller 2. The top of the slider 15 is connected to the frame 1. As the slider 15 moves up and down, the frame 1 will also move up and down synchronously. While the processing roller 2 moves up and down with the frame 1, it can still maintain a free rotation state without affecting its normal surface treatment work.

[0084] When it is necessary to disassemble the processing roller 2, the operation sequence is the reverse of the installation sequence; first, loosen the locking bolt 7 to release the threaded fastening effect; then manually press the hook 102 to overcome the elastic force of the spring 101, so that the hook 102 is disengaged from the slot 11, and the engagement connection of the elastic safety buckle 10 is released; finally, the processing roller 2 can be removed from the frame 1. The entire quick-release structure realizes the quick and safe disassembly and assembly of the processing roller 2 on the frame 1 through the coordinated work of the positioning component and the elastic safety buckle 10.

[0085] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0086] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0087] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0088] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A multifunctional surface treatment roller assembly for plastic film production, characterized in that, include: A frame, a processing roller detachably mounted in the frame, and an automatic calibration device that works in conjunction with the processing roller; The processing roller is a modular roller body, with at least one surface treatment functional unit integrated on its outer peripheral surface. The functional unit is at least one of corona unit, coating unit or embossing unit. The corona unit includes a plasma generator and a high-voltage electrode integrated onto the surface of the roller; The coating unit includes a processing roller with a built-in glue storage chamber, which is connected to an external glue source via a glue supply pipe; The embossing unit includes a contact layer sleeved on the processing roller, and the outer surface of the contact layer is processed with patterns; The processing roller is detachably connected to the frame via a quick-release structure.

2. The multifunctional surface treatment roller assembly for plastic film production as described in claim 1, characterized in that, The quick-release structure includes: Positioning components: These are mounted on flanges at both ends of the processing roller and include locking bolts. Threaded holes are provided at corresponding positions on the frame. The locking bolts pass through the flanges of the processing roller and are screwed into the threaded holes for fastening. Elastic safety buckle: It is set on the connection side between the processing roller and the frame, including a spring and a hook; one end of the spring is fixed to the side of the flange, and the other end is connected to the hook. The side wall of the frame is provided with a groove that matches the hook, and the hook engages with the groove.

3. The multifunctional surface treatment roller assembly for plastic film production as described in claim 2, characterized in that, The automatic calibration device includes: A laser rangefinder sensor group, mounted on the top of the frame, consists of 3-5 laser rangefinder sensors evenly distributed along the width of the processing roller surface. The laser rangefinder sensor's detection end is perpendicularly pointed to the roller surface of the corona unit.

4. The multifunctional surface treatment roller assembly for plastic film production as described in claim 3, characterized in that, It also includes a lifting drive mechanism, which is located at the bottom of the frame and includes: A vertically mounted lead screw, the bottom of which is fixedly connected to the output shaft of the drive motor via a coupling; The slider is threadedly connected to the lead screw, and its two sides are slidably connected to the frame via linear guide rails; The frame is fixed to the side of the slider by bolts.

5. The multifunctional surface treatment roller assembly for plastic film production as described in claim 4, characterized in that, The surface of the processing roller is provided with an annular pressure plate along the circumference. The contact layer is sandwiched between the processing roller and the pressure plate and is detachably pressed and fixed by bolts.

6. The multifunctional surface treatment roller assembly for plastic film production as described in claim 4, characterized in that, The frame has an inspection door on the side, which is connected to the frame by hinges, and its inner edge is equipped with a sealing strip.

7. The multifunctional surface treatment roller assembly for plastic film production as described in claim 4, characterized in that, The top of the frame has a U-shaped groove that matches the cylindrical shape of the processing roller shaft, with a depth of 1 / 3 to 1 / 2 of the roller shaft diameter.

8. The multifunctional surface treatment roller assembly for plastic film production as described in claim 7, characterized in that, The roller has glue outlet holes evenly distributed along its axial direction on its outer periphery.

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