PVB (polyvinyl butyral) adhesive film rolling device
By designing an adjustable and fast-replaceable movable rolling shaft device, the problem of low efficiency in the prior art adjustment and replacement is solved, and efficient adaptation and production of PVB films of different thicknesses is achieved.
Patent Information
- Application Number
- CN202421447889.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-06-24
AI Technical Summary
The existing PVB film rolling device is less efficient when adjusting and replacing the roller shaft, making it difficult to quickly adapt to the film needs of different thicknesses.
A device consisting of a movable roller shaft and a bracket is designed, which can be adjusted by a hydraulic cylinder and can be quickly rotated and loaded and unloaded by a spline shaft and a motor.
It realizes rapid adjustment and replacement of the roller shaft, and improves the adaptability and production efficiency of PVB films of different thicknesses.
Smart Images
Figure CN222959028U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PVB film processing, and specifically relates to a PVB film rolling device. Background Technique
[0002] PVB film, full name polyvinyl butyral film, is a thermoplastic resin film produced from polyvinyl butyral resin with plasticizers added. Due to its unique chemical structure and physical properties, this film plays an important role in multiple industries such as photovoltaics, construction, and automotive.
[0003] The production process of PVB film is a delicate chemical engineering process, involving steps such as resin synthesis, plasticizer addition, mixing, rolling extrusion, calendering, drying, cooling, and cutting.
[0004] The entire production process requires precise control of temperature, pressure, and time to ensure the stable performance of PVB film. In addition, to meet the requirements of different applications, corresponding formula adjustments and process optimizations are also carried out in the production of PVB film. For example, in the existing rolling process, the rolling shaft can be manually adjusted to change its vertical distance, but the efficiency is low. There are also problems regarding how to conveniently and quickly replace the rolling shaft.
[0005] This case involves a PVB film rolling device, which focuses on how to quickly adjust the rolling thickness of the rolling shaft during the rolling process and how to quickly load and unload the rolling shaft. Content of the Utility Model
[0006] (I) Technical Problems to be Solved
[0007] In view of the deficiencies of the prior art, the utility model provides a PVB film rolling device, which solves the problems raised in the above background technique.
[0008] (II) Technical Solutions
[0009] To achieve the above objectives, the utility model is realized through the following technical solutions: A PVB film rolling device: includes a movable rolling shaft and a bracket. The movable rolling shaft is rotatably connected to the bracket detachably. The movable rolling shaft is connected to a driving mechanism to drive the movable rolling shaft to rotate. The bracket is connected to a lifting mechanism to drive the bracket to adjust the vertical distance.
[0010] Preferably, the bracket includes a left side plate, a sliding side plate, and a top plate. The upper end of the left side plate is fixed to one side of the top plate. The sliding side plate is slidably connected to the other side of the top plate. Spline shafts are rotatably connected to the inner sides of the left side plate and the sliding side plate respectively. Spline holes are provided on both end faces of the corresponding movable rolling shaft. The spline shafts and the spline holes are in clearance fit.
[0011] Preferably, a dovetail slider is provided at the upper end of the side of the sliding side plate, and a dovetail groove is formed in the corresponding top plate, and the dovetail slider slides in the dovetail groove.
[0012] Preferably, the driving mechanism is a motor, the motor is arranged outside the sliding side plate, and the output shaft of the motor is connected to a spline shaft inside the sliding side plate.
[0013] Preferably, a right side plate is further arranged outside the sliding side plate, a telescopic member is arranged on the right side plate, and the telescopic rod of the telescopic member is connected to the sliding side plate and can drive the sliding side plate on the top plate.
[0014] Preferably, sliding rods are arranged on both sides of the bracket, sliding ears are slidably connected to the sliding rods, and the sliding ears are connected to the left side plate and the right side plate.
[0015] Preferably, mounting plates are arranged at the upper ends of a group of the sliding rods, the lifting mechanism is a hydraulic cylinder, there is a group of the hydraulic cylinders, which are arranged on the mounting plates on the opposite side, and the hydraulic rods of the hydraulic cylinders are connected to the top plate and can drive the movable rolling shaft to vertically lift.
[0016] Preferably, a fixed roller is arranged below the movable rolling shaft.
[0017] Preferably, rolling conveyor belts are arranged at the front and rear ends of the fixed roller.
[0018] (III) Beneficial effects
[0019] The utility model provides a PVB film rolling device, which has the following beneficial effects:
[0020] 1. For the PVB film rolling device, the movable rolling shaft is rotatably connected to the bracket, and a hydraulic cylinder is arranged at the upper end of the bracket to drive the bracket to lift, so that the position of the movable rolling shaft can be adjusted to meet the needs of rolling PVB films with different thicknesses;
[0021] 2. For the PVB film rolling device, the movable rolling shaft is rotatably connected between the left side plate and the sliding side plate, and spline shafts are arranged on the inner sides of the left side plate and the sliding side plate. Corresponding spline holes are formed on both sides of the movable rolling shaft, and the movable rolling shaft is engaged with the spline shafts through the spline holes at both ends to complete the motor drive. Among them, the sliding side plate is moved through the telescopic member, which is convenient for the loading and unloading of the movable rolling shaft. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 is a schematic structural diagram of a PVB film rolling device of the utility model Figure 1 ;
[0023] Figure 2 is a schematic structural diagram of a PVB film rolling device of the utility model Figure 2 ;
[0024] Figure 3 This is a schematic diagram of the bracket and movable rolling shaft structure of a PVB film rolling device of the present utility model;
[0025] Figure 4 This is a schematic diagram of the sliding side plate and top plate structure of a PVB film rolling device of the present utility model.
[0026] In the figure: 1, movable rolling shaft; 2, bracket; 3, left side plate; 4, sliding side plate; 5, top plate; 6, spline shaft; 7, spline hole; 8, dovetail slider; 9, dovetail groove; 10, motor; 11, right side plate; 12, telescopic component; 13, hydraulic cylinder; 14, sliding rod; 15, sliding ear; 16, mounting plate; 17, fixed roller; 18, rolling conveyor belt. Specific embodiments
[0027] PVB film, the full name is polyvinyl butyral film, is a thermoplastic resin film produced from polyvinyl butyral resin plus plasticizer. Due to its unique chemical structure and physical properties, this film plays an important role in multiple industries such as photovoltaic, construction, and automotive.
[0028] In the photovoltaic industry, PVB film is often used in the encapsulation process of photovoltaic modules. It can firmly bond with various materials such as glass and solar cells, improving the weather resistance, durability, and safety of the modules. For example, when a photovoltaic module is impacted by an external force, the PVB film can prevent the glass from splashing and hurting people after breaking. At the same time, it also has properties such as sound insulation and ultraviolet resistance. In addition, the PVB film can also improve the optical performance of photovoltaic modules, such as increasing the incident rate of sunlight and the light conversion efficiency.
[0029] In addition to its application in the photovoltaic field, PVB film has a 70-year application history in the construction field, mainly used as the interlayer material of safety glass, such as building curtain wall glass. In the automotive industry, PVB film is widely used in the manufacture of airbags because it can quickly solidify when impacted, thus effectively protecting the safety of passengers.
[0030] In recent years, with the increasing requirements for renewable energy and energy conservation and environmental protection, the demand for photovoltaic-grade PVB film has also been continuously growing. The development of the Chinese photovoltaic industry has been particularly rapid, and domestic photovoltaic film manufacturers have become one of the leading forces in the global market. The photovoltaic film industry presents a competitive pattern of "one super and many strong", among which enterprises such as Foster, Swick, HySolar New Materials, and Saiwu Technology have strong market competitiveness.
[0031] The production process of PVB film is a delicate chemical engineering process, involving steps such as resin synthesis, addition of plasticizers, mixing, extrusion, calendering, drying, cooling, and cutting. The following is a typical production process of PVB film:
[0032] Raw material preparation: First of all, the main raw material polyvinyl butyral (PVB) resin needs to be prepared, which is usually synthesized through a polymerization reaction. In addition, plasticizers are required to improve the plasticity of the film, and commonly used plasticizers include glycerol, phthalate esters, etc.
[0033] Mixing: The PVB resin is mixed with additives such as plasticizers, antioxidants, UV absorbers, sericite mica, and coupling agents in a high-speed mixer. This step requires precise control of time (usually 5 minutes) to ensure that all components are evenly mixed.
[0034] Extrusion: The mixed material is melt-extruded through a twin-screw extruder. During this process, the material is heated above its melting point to form a uniform melt.
[0035] Calendering: The molten material is calendered in a calender. During the calendering process, the material is pressed into the required thickness and width, and at the same time, it is cooled and solidified.
[0036] Drying: The calendered PVB film needs to be dried to remove residual moisture and ensure the quality and performance of the film.
[0037] Cooling: The dried PVB film is further cooled in a cooling tower to reach an appropriate temperature for subsequent processing.
[0038] Cutting: Finally, the cooled PVB film is cut into the required sizes to meet the needs of different application scenarios.
[0039] Quality inspection: At the final stage of the entire production process, the PVB film is inspected for quality to ensure that its physical and chemical properties meet the standards.
[0040] Packaging: The qualified products will be cleaned and packaged, and then prepared for shipment or further processing.
[0041] The entire production process requires precise control of temperature, pressure, and time to ensure the stable performance of the PVB film. In addition, in order to meet the needs of different applications, the production of PVB film will also carry out corresponding formula adjustments and process optimizations.
[0042] The embodiment of the present utility model provides a PVB film rolling device, as Figures 1-4As shown in the figure, it includes a movable rolling shaft 1 and a bracket 2. The movable rolling shaft 1 is detachably and rotatably connected to the bracket 2. The movable rolling shaft 1 is connected to a driving mechanism to drive the movable rolling shaft 1 to rotate. The bracket 2 is connected to a lifting mechanism to drive the bracket 2 to adjust the vertical distance. In this technical solution, the lifting adjustment of the movable rolling shaft 1 and the convenience of loading and unloading are reflected. Compared with the traditional rolling shaft, it has stronger adaptability.
[0043] As Figure 2 and 3 shown in the figure, the bracket 2 includes a left side plate 3, a sliding side plate 4, and a top plate 5. The upper end of the left side plate 3 is fixed to one side of the top plate 5. The sliding side plate 4 is slidably connected to the other side of the top plate 5. Spline shafts 6 are rotatably connected to the inner sides of the left side plate 3 and the sliding side plate 4 respectively. Corresponding spline holes 7 are provided on both end faces of the movable rolling shaft 1. The spline shafts 6 are in clearance fit with the spline holes 7.
[0044] As Figure 4 shown in the figure, a dovetail slider 8 is provided at the upper end of the side of the sliding side plate 4. A dovetail groove 9 is provided on the corresponding top plate 5. The dovetail slider 8 slides in the dovetail groove 9, making the sliding of the sliding side plate 4 on the top plate 5 smoother and safer.
[0045] As Figure 2 shown in the figure, the driving mechanism is a motor 10. The motor 10 is arranged outside the sliding side plate 4. The output shaft of the motor 10 is connected to the spline shaft 6 inside the sliding side plate 4. The motor 10 drives one side spline shaft 6 to rotate, and then drives the cooperating movable rolling shaft 1 to rotate.
[0046] As Figure 2 shown in the figure, a right side plate 11 is further provided outside the sliding side plate 4. An expansion member 12 is provided on the right side plate 11. The telescopic rod of the expansion member 12 is connected to the sliding side plate 4, and can drive the sliding side plate 4 on the top plate 5 to drive the spline shaft 6 on the sliding side plate 4 to disengage from the movable rolling shaft 1, thereby facilitating the disassembly of the movable rolling shaft 1.
[0047] As Figure 1 and 2 shown in the figure, slide bars 14 are provided on both sides of the bracket 2. Sliding ears 15 are slidably connected to the slide bars 14. The sliding ears 15 are connected to the left side plate 3 and the right side plate 11, ensuring the verticality of the overall lifting of the bracket 2, and thus ensuring the vertical lifting of the movable rolling shaft 1.
[0048] As Figure 1 and 2 shown in the figure, mounting plates 16 are provided at the upper ends of a group of the slide bars 14. The lifting mechanism is a hydraulic cylinder 13. A group of the hydraulic cylinders 13 are arranged on the opposite side on the mounting plates 16. The hydraulic rods of the hydraulic cylinders 13 are connected to the top plate 5, and can drive the movable rolling shaft 1 to vertically lift.
[0049] Additionally, a fixed roller 17 is arranged below the movable rolling shaft 1. The PVB film is rolled through the space between the movable rolling shaft 1 and the fixed roller 17. Correspondingly, the fixed roller 17 can also be individually rotationally driven, and its related driving components are not shown.
[0050] Meanwhile, in order to traction the advancement of the PVB film, rolling conveyor belts 18 are arranged at the front and rear ends of the fixed roller 17. The rolling conveyor belts 18 belong to the prior art and can be selected and configured according to actual requirements.
[0051] Working principle: When the PVB film rolling device is in use, as Figure 1 shown, the produced PVB film is driven by the rolling conveyor belt 18, passes through the position between the movable rolling shaft 1 and the fixed roller 17, and completes the rolling operation under the rolling action of the upper and lower rollers. During the implementation process, the distance between the upper and lower rollers can be adjusted by starting the hydraulic cylinder 13 to drive the overall lifting of the bracket 2 with the movable rolling shaft 1. And the spline shaft 6 on one side of the sliding side plate 4 is rotated by the motor 10 to start the rotation of the movable rolling shaft 1;
[0052] Furthermore, when the movable rolling shaft 1 needs to be replaced, start the telescopic component 12 to drive the sliding side plate 4 to move outward, so that the spline shaft 6 on one side of the sliding side plate 4 disengages from the spline hole 7 of the movable rolling shaft 1, thereby removing the movable rolling shaft 1 for replacement and maintenance operations.
[0053] In summary, for this PVB film rolling device, the movable rolling shaft 1 is rotatably connected to the bracket 2, and a hydraulic cylinder 13 is arranged at the upper end of the bracket 2 to drive the lifting of the bracket 2, which can realize the adjustment of the position of the movable rolling shaft 1 to meet the needs of rolling PVB films with different thicknesses; for this PVB film rolling device, the movable rolling shaft 1 is rotatably connected between the left side plate 3 and the sliding side plate 4, and spline shafts 6 are arranged on the inner sides of the left side plate 3 and the sliding side plate 4. Corresponding spline holes 7 are opened on both sides of the movable rolling shaft 1. The movable rolling shaft 1 is engaged with the spline shafts 6 through the spline holes 7 at both ends to complete the transmission of the motor 10. Among them, the sliding side plate 4 is moved through the telescopic component 12, which is convenient for the loading and unloading of the movable rolling shaft 1.
[0054] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A PVB film rolling device, characterized in that: It comprises a movable rolling shaft (1) and a bracket (2), wherein the movable rolling shaft (1) is detachably rotatably connected to the bracket (2), the movable rolling shaft (1) is connected to a driving mechanism to drive the movable rolling shaft (1) to rotate, and the bracket (2) is connected to a lifting mechanism to drive the bracket (2) to adjust the vertical distance; The bracket (2) comprises a left side plate (3), a sliding side plate (4), and a top plate (5); the upper end of the left side plate (3) is fixed to one side of the top plate (5); the sliding side plate (4) is slidably connected to the other side of the top plate (5); the inner sides of the left side plate (3) and the sliding side plate (4) are rotatably connected to spline shafts (6); the corresponding end faces of both sides of the movable rolling shaft (1) are provided with spline holes (7); the spline shaft (6) and the spline holes (7) are clearance-matched; A dovetail slider (8) is provided at the upper end of the sliding side plate (4), and a dovetail groove (9) is provided on the corresponding top plate (5), and the dovetail slider (8) slides in the dovetail groove (9); A right side plate (11) is also provided on the outside of the sliding side plate (4), and a telescopic component (12) is provided on the right side plate (11). The telescopic rod of the telescopic component (12) is connected to the sliding side plate (4) and can drive the sliding side plate (4) onto the top plate (5).
2. A PVB film rolling device according to claim 1, characterized in that: Sliding rods (14) are arranged on both sides of the bracket (2), and sliding ears (15) are slidably connected to the sliding rods (14), and the sliding ears (15) are connected to the left side plate (3) and the right side plate (11).
3. A PVB film rolling device according to claim 2, characterized in that: A mounting plate (16) is arranged at the upper end of a group of the sliding rods (14); the lifting mechanism is a hydraulic cylinder (13); the hydraulic cylinder (13) is a group, and the opposite sides are arranged on the mounting plate (16); the hydraulic rod of the hydraulic cylinder (13) is connected to the top plate (5), and can drive the movable rolling shaft (1) to rise and fall vertically.
4. A PVB film rolling device according to any one of claims 1 to 3, characterized in that: A fixed roller (17) is arranged below the movable rolling shaft (1).
5. A PVB film rolling device according to claim 4, characterized in that: A rolling conveyor belt (18) is arranged at the front and rear ends of the fixed roller (17).