A powdering roller for PVC calendered transparent film which is easy to clean

Abstract

The utility model belongs to the field of powdering roller, especially a kind of powdering roller of PVC calendering transparent film convenient to clean.The utility model provides a kind of powdering roller of PVC calendering transparent film convenient to clean, including the powdering mechanism of rotation connection in the inside of rack, the powdering mechanism includes rotating shaft, inner core and four arc powdering plates, the rotating shaft is rotationally connected in the inside of the rack, the inner core is fixedly sleeved in the rotating shaft outside, four The arc powdering plate is enclosed and is formed with the circular structure of the inner core adaptation and is sleeved in the inner core outside, and a plurality of powder storage grooves are formed in each arc powdering plate outside, by being designed as four arc powdering plate combination structure to powdering roller, the thread cooperation of arc-shaped connecting plate and nut is used to realize quick disassembly, without being like traditional integral type roller body to disassemble bearing, transmission gear and other components, arc powdering plate can be directly split and clean powder storage groove alone, greatly simplify cleaning process, solve the problem of traditional roller body disassembly cumbersome.

Description

Technical Field

[0001] This utility model belongs to the field of powder spreading rollers, and in particular relates to a powder spreading roller for easy-to-clean PVC calendered transparent film. Background Technology

[0002] In the production process of PVC calendered transparent film, the powder-spreading roller is the core component to ensure that the film surface does not stick. The powder-spreading grooves processed on the surface of the roller need to be precisely coated with anti-sticking powder (such as ultrafine calcium carbonate) to avoid interlayer adhesion when the film roll is wound up.

[0003] However, traditional powder-spreading rollers generally adopt an integral steel roller structure, with the powder-spreading grooves directly milled or engraved on the roller surface. When residual powder clumps or accumulates in the grooves, the entire roller must be disassembled from the transmission system (removing bearings, transmission gears, and other components) before cleaning, resulting in a cumbersome disassembly and assembly process and affecting cleaning efficiency. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a powder-spreading roller for easy-to-clean PVC calendered transparent film. By designing the powder-spreading roller as a combination of four arc-shaped powder-spreading plates, quick assembly and disassembly are achieved through the threaded engagement of the arc-shaped connecting plate and the nut. Unlike traditional integral rollers, there is no need to disassemble bearings, transmission gears, and other components. The arc-shaped powder-spreading plates can be directly separated to clean the powder storage tank separately, greatly simplifying the cleaning process and solving the problem of cumbersome disassembly of traditional rollers.

[0005] In view of this, the present invention provides a powder-spreading roller for easy-to-clean PVC calendered transparent film, including a powder-spreading mechanism rotatably connected to the inner side of a frame. The powder-spreading mechanism includes a rotating shaft, an inner core, and four arc-shaped powder-spreading plates. The rotating shaft is rotatably connected to the inner side of the frame, and the inner core is fixedly sleeved on the outer side of the rotating shaft. The four arc-shaped powder-spreading plates form a circular structure adapted to the inner core and are sleeved on the outer side of the inner core. Each arc-shaped powder-spreading plate has multiple powder storage grooves on its outer side. Both ends of the four arc-shaped powder-spreading plates are fixedly connected to arc-shaped connecting plates with external threads. Nuts are threaded on the outer side of the arc-shaped connecting plates. The arc-shaped powder-spreading plates can be disassembled and assembled by the thread engagement of the nuts with the arc-shaped connecting plates, so as to clean the arc-shaped powder-spreading plates and powder storage grooves.

[0006] In this technical solution, the powder spreading roller is designed as a combination of four arc-shaped powder spreading plates. The arc-shaped connecting plate and the nut are threaded together to achieve quick assembly and disassembly. Unlike traditional integral rollers, there is no need to disassemble bearings, transmission gears and other components. The arc-shaped powder spreading plates can be directly separated to clean the powder storage tank separately, which greatly simplifies the cleaning process.

[0007] Furthermore, it also includes a powder storage box, which is located on top of the powder spreading mechanism and is used to supply powder to the powder storage tank to achieve powder spreading of PVC calendered transparent film.

[0008] In this technical solution, powder is stably supplied to the powder storage tank through the powder storage box. Its setting is adapted to the detachable arc-shaped powder spreading plate. The powder supply process does not affect the disassembly and assembly of the powder spreading plate, ensuring that the powder supply and cleaning process do not interfere with each other.

[0009] Furthermore, at least three magnetic rings are evenly spaced along the circumferential direction on the outer peripheral wall of the inner core, and iron sheets that are attracted to the magnetic rings are embedded in the inner wall of each arc-shaped powder-sprinkling plate.

[0010] In this technical solution, the magnetic ring and the iron sheet are attracted to each other, which helps to fix the relative position of the arc-shaped powder-spraying plate and the inner core, making it easier to disassemble and assemble the arc-shaped powder-spraying plate, simplifying the disassembly and assembly steps, and further improving the efficiency of cleaning operations.

[0011] Furthermore, each of the four arc-shaped powder-sprinkling plates has multiple insert rods fixed to its inner wall, and multiple insertion holes are opened on the outer peripheral wall of the inner core between two adjacent magnetic rings. The size of each insertion hole is adapted to the corresponding insert rod and their positions correspond one-to-one.

[0012] In this technical solution, the precise matching of the plug and the socket can position the arc-shaped powder-spreading plate, ensuring that the powder-spreading plates are accurately aligned and the overall structure is stable after assembly. This avoids the powder-spreading plate offset affecting the uniformity of powder distribution. At the same time, it allows for quick alignment during disassembly and assembly, reducing calibration time and improving the convenience of disassembly and assembly.

[0013] Furthermore, the powder storage box is detachably connected to the frame by bolts, and the bottom end of the powder storage box is open, with the edge of the bottom opening movably fitting against the outer peripheral wall of the arc-shaped powder spreading plate.

[0014] In this technical solution, the powder storage box is detachable by bolts and its bottom is attached to the powder spreading plate. This not only facilitates the separate disassembly of the powder storage box for cleaning, but also reduces powder leakage. The combination of the powder storage box and the detachable powder spreading plate allows the powder storage box and the powder spreading plate to be cleaned independently, avoiding the problem of having to clean the whole box to clean one part in the traditional integral structure.

[0015] Furthermore, a drive motor is installed at one end of the outer side of the frame, and the drive end of the drive motor is connected to one end of the rotating shaft via a coupling.

[0016] In this technical solution, the drive motor is connected to the rotating shaft via a coupling. When cleaning the arc-shaped powder-spraying plate, it is not necessary to disassemble the motor and other transmission components such as the coupling. Only the powder-spraying plate needs to be disassembled, which avoids the cumbersome process of disassembling the entire transmission system during traditional cleaning and simplifies the preparation process before cleaning.

[0017] Furthermore, each of the powder storage tanks has a funnel-shaped structure. With the radial direction of the arc-shaped powder spreading plate as a reference, the inner opening diameter of the powder storage tank on the side closer to the inner core is smaller than the outer opening diameter on the side farther from the inner core.

[0018] In this technical solution, the funnel-shaped powder storage tank makes it easier to fill the powder and less likely to leave residues, reducing the possibility of powder clumping in the storage tank. Combined with the detachable powder spreading plate, this further improves the cleaning effect and efficiency.

[0019] The beneficial effects of this utility model are:

[0020] 1. This utility model designs the powder-spreading roller as a combination structure of four arc-shaped powder-spreading plates. The arc-shaped connecting plate and the nut threaded engagement enable quick assembly and disassembly. Unlike traditional integral roller bodies, it does not require disassembling bearings, transmission gears and other components. The arc-shaped powder-spreading plates can be directly separated to clean the powder storage tank separately, which greatly simplifies the cleaning process and solves the problem of cumbersome disassembly of traditional roller bodies.

[0021] 2. This utility model uses the magnetic ring and the iron sheet to help fix the relative position of the arc-shaped powder-spraying plate and the inner core, which facilitates the disassembly and assembly of the arc-shaped powder-spraying plate, simplifies the disassembly and assembly steps, and further improves the operating efficiency during cleaning.

[0022] 3. This utility model can position the arc-shaped powder-spreading plate by precisely matching the plug rod and the plug hole, ensuring that the powder-spreading plates are accurately aligned and the overall structure is stable after assembly. It avoids the powder-spreading plate offset from affecting the uniformity of powder distribution. At the same time, it can quickly align during disassembly and assembly, reduce calibration time, and improve the convenience of disassembly and assembly. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the connection structure between the inner core and the arc-shaped powder-sprinkling plate of this utility model;

[0025] Figure 3 This is a schematic diagram of the inner structure of the arc-shaped powder-spreading plate of this utility model.

[0026] In the diagram: 1. Frame; 2. Drive motor; 3. Shaft; 4. Powder storage box; 5. Arc-shaped powder spreading plate; 6. Nut; 7. Inner core; 8. Insertion hole; 9. Magnetic ring; 10. Arc-shaped connecting plate; 11. Powder storage tank; 12. Iron sheet; 13. Insert rod. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0028] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0029] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0030] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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 application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0031] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0032] Example 1:

[0033] like Figure 1-3 As shown, this utility model provides a powder-spreading roller for easy-to-clean PVC calendered transparent film, including a powder-spreading mechanism rotatably connected to the inner side of a frame 1. The powder-spreading mechanism includes a rotating shaft 3, an inner core 7, and four arc-shaped powder-spreading plates 5. The rotating shaft 3 is rotatably connected to the inner side of the frame 1, and the inner core 7 is fixedly sleeved on the outer side of the rotating shaft 3. The four arc-shaped powder-spreading plates 5 enclose a circular structure adapted to the inner core 7 and are sleeved on the outer side of the inner core 7. Each arc-shaped powder-spreading plate 5 has multiple powder storage grooves 11 on its outer side. Both ends of the four arc-shaped powder-spreading plates 5 are fixedly connected to an arc-shaped connecting plate 10 with external threads. The outer side of the arc-shaped connecting plate 10 is threaded with a nut 6. The arc-shaped powder-spreading plates 5 are disassembled and assembled by the threaded engagement of the nut 6 with the arc-shaped connecting plate 10, so as to clean the arc-shaped powder-spreading plates 5 and the powder storage grooves 11. The inner diameter of the circle formed by the four arc-shaped connecting plates 10 is larger than the outer diameter of the rotating shaft 3.

[0034] During operation, the four arc-shaped powder-spreading plates 5 enclose the entire roller body and are fixed to the outside of the inner core 7 by the threaded engagement of the arc-shaped connecting plate 10 and the nut 6. The powder storage tank 11 rotates with the powder-spreading mechanism to distribute powder. When cleaning is required, simply loosen the nut 6 to separate the four arc-shaped powder-spreading plates 5 from the inner core 7 without disassembling the rotating shaft 3, bearings, or other transmission components. Compared to the method of cleaning an integral roller body that requires the removal of bearings, gears, etc., this structure allows for targeted cleaning of each arc-shaped powder-spreading plate 5 and the powder storage tank 11, completely solving the problem of the cumbersome disassembly process of traditional roller bodies and greatly improving the convenience and efficiency of cleaning.

[0035] It also includes a powder storage box 4, which is located on top of the powder spreading mechanism and is used to supply powder to the powder storage tank 11 to achieve powder spreading of PVC calendered transparent film. The powder storage box 4 is detachably connected to the frame 1 by bolts. The bottom end of the powder storage box 4 is open, and the edge of its bottom opening is movably attached to the outer peripheral wall of the arc-shaped powder spreading plate 5.

[0036] The powder storage box 4 supplies powder to the powder storage tank 11 of the arc-shaped powder spreading plate 5 through its bottom opening. The edge of its opening fits against the outer periphery of the powder spreading plate to reduce powder leakage. When cleaning is required, the powder storage box 4 can be disassembled with bolts to clean the residual powder inside, and the arc-shaped powder spreading plate 5 can be disassembled to clean the powder storage tank 11. The two operations do not interfere with each other, realizing the independent disassembly and cleaning of the powder storage box 4 and the powder spreading plate. This avoids the cumbersome process of cleaning one part and affecting the whole, further improving the flexibility of the cleaning operation.

[0037] At least three magnetic rings 9 are inlaid at equal intervals along the circumference of the outer peripheral wall of the inner core 7, and iron sheets 12 that are attracted to the magnetic rings 9 are inlaid on the inner wall of each arc-shaped powder-sprinkling plate 5.

[0038] During assembly, the arc-shaped powder-spreading plate 5 is fitted onto the outside of the inner core 7. The magnetic ring 9 on the outer periphery of the inner core 7 attracts the iron sheet 12 on the inner wall of the powder-spreading plate, forming an auxiliary positioning on the basis of the fixing of the nut 6, ensuring that the powder-spreading plate will not shift relative to the inner core 7 during assembly, which facilitates installation.

[0039] Each of the four arc-shaped powder-sprinkling plates 5 has a number of insert rods 13 fixed on its inner wall. The outer peripheral wall of the inner core 7 between two adjacent magnetic rings 9 is provided with a number of insertion holes 8. The size of each insertion hole 8 is adapted to the corresponding insertion rod 13 and their positions correspond one-to-one.

[0040] When assembling the arc-shaped powder-spreading plate 5, the insert rod 13 on the inner wall of the arc-shaped powder-spreading plate 5 is precisely inserted into the corresponding insertion hole 8 of the inner core 7. With the help of magnetic adsorption and nut 6, the powder-spreading plate is fixed, realizing triple positioning. This ensures that the arc-shaped powder-spreading plate 5 will not rotate relative to the inner core 7 when it rotates, thus guaranteeing the quality of powder spreading. When reassembling after disassembly and cleaning, the correspondence between the insert rod 13 and the insertion hole 8 can quickly guide the powder-spreading plate to reset without repeated calibration. This avoids uneven powder distribution caused by assembly deviation of the powder-spreading plate and reduces calibration time during disassembly and assembly.

[0041] A drive motor 2 is installed at one end of the outer side of the frame 1, and the drive end of the drive motor 2 is connected to one end of the rotating shaft 3 via a coupling.

[0042] During operation, the drive motor 2 drives the rotating shaft 3 to rotate through the coupling, which in turn drives the powder spreading mechanism to operate as a whole to spread powder. When it is necessary to clean the powder spreading plate, there is no need to disassemble the drive motor 2, coupling and other transmission components. Only the arc-shaped powder spreading plate 5 needs to be disassembled, which saves the tedious steps of disassembling and reassembling the transmission components, significantly shortens the preparation time before and after cleaning, and improves the overall operating efficiency.

[0043] Each of the powder storage tanks 11 has a funnel-shaped structure. With the radial direction of the arc-shaped powder spreading plate 5 as the reference, the inner opening diameter of the powder storage tank 11 on the side closer to the inner core 7 is smaller than the outer opening diameter on the side farther from the inner core 7.

[0044] During the powder application process, the powder storage tank 11 has a funnel-shaped structure. After the powder enters the powder storage tank 11 from the powder storage box 4, the outer opening is larger than the inner opening, making it easier to flow smoothly out to the film surface with the rotation of the arc-shaped powder spreading plate 5. This reduces the residual accumulation of powder in the tank. At the same time, the funnel-shaped structure reduces dead corners in the tank, making it easier to clean residual powder during cleaning, further improving the cleaning effect and efficiency.

[0045] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A powder-spreading roller for easy-to-clean PVC calendered transparent film, characterized in that, The device includes a powder-spreading mechanism rotatably connected to the inside of the frame (1). The powder-spreading mechanism includes a rotating shaft (3), an inner core (7), and four arc-shaped powder-spreading plates (5). The rotating shaft (3) is rotatably connected to the inside of the frame (1). The inner core (7) is fixedly sleeved on the outside of the rotating shaft (3). The four arc-shaped powder-spreading plates (5) form a circular structure that fits the inner core (7) and are sleeved on the outside of the inner core (7). Each arc-shaped powder-spreading plate (5) has multiple powder storage grooves (11) on its outer side. Both ends of the four arc-shaped powder-spreading plates (5) are fixedly connected to an arc-shaped connecting plate (10) with external threads. The outer side of the arc-shaped connecting plate (10) is threaded with a nut (6). The arc-shaped powder-spreading plates (5) can be disassembled and assembled by the threaded engagement of the nut (6) with the arc-shaped connecting plate (10) in order to clean the arc-shaped powder-spreading plates (5) and the powder storage grooves (11).

2. The powder-spreading roller for easy-to-clean PVC calendered transparent film according to claim 1, characterized in that, It also includes a powder storage box (4), which is located on top of the powder spreading mechanism and is used to supply powder to the powder storage tank (11) to achieve powder spreading of PVC calendered transparent film.

3. The powder-spreading roller for easy-to-clean PVC calendered transparent film according to claim 1, characterized in that, The outer peripheral wall of the inner core (7) is inlaid with at least three magnetic rings (9) at equal intervals along the circumference, and the inner wall of each arc-shaped powder-sprinkling plate (5) is inlaid with iron sheets (12) that are attracted to the magnetic rings (9).

4. The powder-spreading roller for easy-to-clean PVC calendered transparent film according to claim 1, characterized in that, The inner walls of the four arc-shaped powder-sprinkling plates (5) are each fixed with multiple insert rods (13). The outer peripheral wall of the inner core (7) between two adjacent magnetic rings (9) is provided with multiple insertion holes (8). The size of each insertion hole (8) is adapted to the corresponding insert rod (13) and the position is one-to-one.

5. The powder-spreading roller for easy-to-clean PVC calendered transparent film according to claim 2, characterized in that, The powder storage box (4) is detachably connected to the frame (1) by bolts. The bottom end of the powder storage box (4) is open, and the edge of the bottom opening is in contact with the outer peripheral wall of the arc-shaped powder spreading plate (5).

6. The powder-spreading roller for easy-to-clean PVC calendered transparent film according to claim 1, characterized in that, A drive motor (2) is installed on one side of the frame (1), and the drive end of the drive motor (2) is connected to one end of the rotating shaft (3) through a coupling.

7. The powder-spreading roller for easy-to-clean PVC calendered transparent film according to claim 1, characterized in that, Each of the powder storage tanks (11) has a trumpet-shaped structure. With the radial direction of the arc-shaped powder spreading plate (5) as the reference, the inner opening diameter of the powder storage tank (11) on the side closer to the inner core (7) is smaller than the outer opening diameter on the side farther from the inner core (7).

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