Automatic roll changing equipment for PVB (Polyvinyl Butyral) film

By designing an automatic PVB film rewinding device, the automatic cutting and rewinding of film is achieved using transmission and clamping components, solving the problem of labor-intensive manual operation in existing technologies and improving film rewinding efficiency.

CN223804568UActive Publication Date: 2026-01-16CHONGQING HUAKAI NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202520309833.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-01-16
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

In the existing technology, the process of changing PVB film requires manual operation, resulting in high labor costs and low efficiency.

Method used

An automatic roll-changing device for PVB film was designed. It utilizes a transmission component and a pressing component to achieve automatic cutting and roll changing of the film. The transmission component drives the cutting blade to cut the film, and the pressing roller presses the film onto the new take-up roller to achieve automatic roll changing.

Benefits of technology

It greatly reduced labor costs, improved film winding efficiency, and achieved automated film winding and efficient roll changing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of PVB (polyvinyl butyral) film production, and particularly relates to automatic roll changing equipment for PVB films, which comprises a base, support frames are symmetrically and fixedly connected to the top of the base, turntables are rotatably connected to the inner sides of the two support frames, a plurality of groups of mounting plates are rotatably connected to the inner sides of the turntables at equal intervals, and a winding roller is detachably connected between each group of mounting plates. The side, close to the rotating disc, of the top of the base is slidably connected with a moving frame through limiting columns. The two sides in the moving frame are slidably connected with sliding plates. The utility model provides automatic roll changing equipment for PVB (polyvinyl butyral) films, and solves the problems that in the prior art, when the films are sufficiently wound by winding rollers and need to be changed, the films are cut off manually firstly, then the current winding roller is detached, and the cut-off films are wound on the winding rollers which are subsequently replaced, so that the films are continuously wound, the production efficiency is high, and the production cost is low. And manual operation is needed in the whole process, manpower is greatly consumed, and therefore the labor cost is increased, and the film winding efficiency is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of PVB film production, and particularly relates to an automatic roll changing device for PVB film. BACKGROUND

[0002] The production process of PVB film is relatively complex, involves multiple steps, including the selection of raw materials, chemical reactions, film formation and post-processing, etc., wherein, the winding and roll changing of the film is an important step.

[0003] In the prior art, when the winding roller winds the film enough to need roll changing, the film is first cut by manual operation, then the current winding roller is disassembled, and then the cut film is wound on the subsequent changed winding roller, so as to realize the continuous winding of the film, and the whole process needs manual operation, which consumes a lot of manpower, thereby increasing the labor cost and reducing the film winding efficiency. UTILITY MODEL CONTENTS

[0004] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide an automatic roll changing device for PVB film.

[0005] The technical scheme of the utility model is as follows: an automatic roll changing device for PVB film, comprising a base, the top of the base is symmetrically fixedly connected with supporting frames, the inner sides of the two supporting frames are rotatably connected with turntables, the inner sides of the turntables are equidistantly rotatably connected with multiple groups of mounting discs, the mounting discs of each group are detachably connected with winding rollers, the side of the top of the base close to the turntable is slidably connected with a moving frame through a limiting column, the inner sides of the moving frame are slidably connected with sliding plates, the moving frame is fixedly connected with a pressing roller between the two sliding plates, the top of the base and between the turntable and the moving frame is provided with a cutting knife, the top of the base is provided with a transmission assembly, and the moving frame is provided with a pressing assembly.

[0006] As a preferred embodiment, the transmission assembly comprises limiting blocks and a linkage unit, the limiting blocks are symmetrically fixedly connected to the side of the top of the base away from the limiting column, a first lead screw is rotatably connected between the two limiting blocks, a first motor is fixedly connected to the outer side of the limiting block through a mounting plate, the output end of the first motor extends to the inner side of the limiting block and is fixedly connected with the first lead screw, a first belt pulley is fixedly connected to the outer side of the limiting block at one end of the first lead screw, and the cutting knife can be moved through the linkage unit.

[0007] As a preferred implementation form, the linkage unit comprises a second screw rod, a fixed seat is fixedly connected to the top of the base and located at one side of the moving frame, the second screw rod is rotationally connected to the inside of the fixed seat, the cutting knife is slidingly connected to the inside of the fixed seat, the cutting knife is threadedly connected to the outside of the second screw rod, a second bevel gear is fixedly connected to one end of the second screw rod and extends to the outside of the fixed seat, a first bevel gear is rotationally connected to one side of the outside of the fixed seat through a limiting plate, the first bevel gear is meshingly connected with the second bevel gear, a second belt pulley is fixedly connected to the outside of the first bevel gear, and the first belt pulley and the second belt pulley are drivingly connected through a transmission belt.

[0008] As a preferred implementation form, the pressing assembly comprises a second motor, the second motor is fixedly connected to one side of the bottom of the moving frame through a mounting block, the output end of the second motor is fixedly connected with a transmission gear, and the outside of the sliding plate is provided with teeth.

[0009] As a preferred implementation form, the inside of the support frame is fixedly connected with a third motor, the output end of the third motor is fixedly connected with the rotating disc, and the mounting disc is driven to rotate through the driving device in the inside of the rotating disc.

[0010] As a preferred implementation form, the top of the base is provided with a feeding roller away from one side of the rotating disc, and the first motor, the second motor and the third motor are electrically connected with an external controller.

[0011] The beneficial effects of the utility model are as follows:

[0012] The device can quickly replace the winding roller of the winding roller of the wound film through simple operation, the cutting knife can cut the film during the replacement process, the film is pressed on the subsequent winding roller by the pressing roller to facilitate continuous winding, the trouble of manual operation replacement is replaced, thereby greatly reducing the labor cost and improving the film winding efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further described in connection with the drawings.

[0014] Figure 1 It is the perspective view of the utility model;

[0015] Figure 2 It is the first modality sectional view of the utility model;

[0016] Figure 3 It is the second modality sectional view of the utility model;

[0017] Figure 4 It is the sectional view of the moving frame and the pressing roller in the utility model;

[0018] Figure 5 is a sectional view of the fixed seat in the utility model;

[0019] Figure 6 is a sectional view of the fixed seat in the utility model; Figure 3 is an enlarged view of A in the utility model;

[0020] Figure 7 is an enlarged view of B in the utility model. Figure 3

[0021] In the figure: 1, base; 2, support frame; 3, turntable; 4, mounting disc; 5, winding roller; 6, moving frame; 7, sliding plate; 8, compression roller; 9, cutting knife; 10, limiting column; 11, limiting block; 12, first lead screw; 13, first motor; 14, first belt pulley; 15, fixed seat; 16, second lead screw; 17, first bevel gear; 18, second belt pulley; 19, transmission belt; 20, second bevel gear; 21, second motor; 22, transmission gear; 23, third motor; 24, feeding roller. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0023] Please refer to Figures 1-7 , a kind of PVB film automatic roll changing equipment, including base 1, the top of base 1 is symmetrically fixedly connected with support frame 2, the inner side of two support frames 2 is rotatably connected with turntable 3, the inner side of turntable 3 is equidistantly rotatably connected with multiple groups of mounting disc 4, each group of mounting disc 4 is detachably connected with winding roller 5 between, the top of base 1 is slidably connected with moving frame 6 by limiting column 10 on one side close to turntable 3, the inside of moving frame 6 is slidably connected with sliding plate 7 on both sides, two sliding plates 7 are fixedly connected with compression roller 8 between, cutting knife 9 is arranged between turntable 3 and moving frame 6 on the top of base 1, transmission assembly is arranged on the top of base 1, and compression assembly is arranged in moving frame 6.

[0024] ​Specific, the transmission assembly includes limiting block 11 and linkage unit, limiting block 11 symmetrically fixedly connected to the top of the base 1 away from the side of the limiting column 10, the first screw 12 is rotatably connected between the two limiting blocks 11, the outside of the limiting block 11 is fixedly connected with the first motor 13 through the mounting plate, the output end of the first motor 13 extends to the inside of the limiting block 11 and is fixedly connected with the first screw 12, the first pulley 14 is fixedly connected to the outside of the limiting block 11 at one end of the first screw 12, the cutting knife 9 can be moved through the linkage unit, the linkage unit includes the second screw 16, the top of the base 1 and located on one side of the moving frame 6 is fixedly connected with the fixed seat 15, the second screw 16 is rotatably connected to the inside of the fixed seat 15, the cutting knife 9 is slidably connected to the inside of the fixed seat 15, the cutting knife 9 is threadedly connected to the outside of the second screw 16, the second bevel gear 20 is fixedly connected to the outside of the fixed seat 15 at one end of the second screw 16, the first bevel gear 17 is rotatably connected to the outside of the fixed seat 15 through the limiting plate, the first bevel gear 17 is meshingly connected with the second bevel gear 20, the second pulley 18 is fixedly connected to the outside of the first bevel gear 17, the first pulley 14 and the second pulley 18 are drivingly connected through the transmission belt 19, the pressing assembly includes the second motor 21, the second motor 21 is fixedly connected to the bottom side of the moving frame 6 through the mounting block, the output end of the second motor 21 is fixedly connected with the transmission gear 22, the outside of the sliding plate 7 is provided with a tooth, the transmission gear 22 is meshingly connected with the sliding plate 7 through the tooth.

[0025] When the current winding roller 5 needs to be replaced, the third motor 23 is started first, the output end of the third motor 23 drives the rotating disc 3 to rotate, thereby driving the current winding roller 5 to rotate downward, so that the current film is stretched downward and the winding roller 5 behind is replaced in position. At this time, the winding roller 5 after winding is disassembled and collected. Then the first motor 13 is started, the output end of the first motor 13 drives the first lead screw 12 to rotate, so that the first lead screw 12 drives the moving frame 6 to move to the bottom of the replaced winding roller 5 through the threaded connection, and the film is pressed tightly by the pressure roller 8. At the same time, the first lead screw 12 drives the first belt pulley 14 to rotate, the first belt pulley 14 drives the second belt pulley 18 and the first bevel gear 17 to rotate through the transmission belt 19, so that the second bevel gear 20 and the second lead screw 16 are driven to rotate through the meshing relationship of the first bevel gear 17, so that the second lead screw 16 drives the cutting knife 9 to move to the other end through the threaded connection, thereby cutting the film during the movement, so that the film is cut off and the film is pressed tightly by the pressure roller 8. Then the second motor 21 is started, the output end of the second motor 21 drives the transmission gear 22 to rotate, so that the transmission gear 22 drives the sliding plate 7 and the pressure roller 8 to slide downward through the meshing relationship, so that the subsequent film is wound on the outside of the replaced winding roller 5 by the pressure roller 8. Then the output end of the second motor 21 is reversed, the pressure roller 8 is reset through the reverse process, and the replaced winding roller 5 is driven to rotate by the driving device in the rotating disc 3, so that the film can be wound continuously. The output end of the first motor 13 is reversed, so that the cutting knife 9 and the moving frame 6 are reset through the reverse process, thereby facilitating the subsequent replacement work. The device can quickly replace the winding roller 5 after winding the film through simple operation, and the film can be cut off by the cutting knife 9 during the replacement process, and the film is pressed tightly on the subsequent winding roller 5 by the pressure roller 8 to facilitate continuous winding, thereby replacing the manual replacement work, greatly reducing the labor cost, and improving the film winding efficiency.

[0026] Specifically, the third motor 23 is fixedly connected inside the support frame 2, the output end of the third motor 23 is fixedly connected with the rotating disc 3, the mounting disc 4 is driven to rotate by the driving device inside the rotating disc 3, the top of the base 1 away from the side of the rotating disc 3 is provided with a feeding roller 24, and the first motor 13, the second motor 21 and the third motor 23 are electrically connected with the external controller.

[0027] Through the above technical scheme, the feeding roller 24 can continuously feed the film, and the external controller can facilitate the quick control of the first motor 13, the second motor 21 and the third motor 23 by the worker.

[0028] In use, when the current winding roll 5 needs to be replaced, first start the third motor 23, the output end of the third motor 23 drives the rotating disc 3 to rotate, thereby driving the current winding roll 5 to rotate downward, that is, the current film is stretched downward and the winding roll 5 behind completes the replacement, at this time the winding roll 5 after winding is disassembled and collected, then start the first motor 13, the output end of the first motor 13 drives the first lead screw 12 to rotate, so that the first lead screw 12 drives the moving frame 6 to move to the bottom of the replaced winding roll 5 through the threaded connection, and at the same time the first lead screw 12 drives the first belt pulley 14 to rotate, the first belt pulley 14 drives the second belt pulley 18 and the first bevel gear 17 to rotate through the transmission belt 19, the first bevel gear 17 drives the second bevel gear 20 and the second lead screw 16 to rotate through the meshing relationship, so that the second lead screw 16 drives the cutting knife 9 to move to the other end through the threaded connection, thereby cutting the film during movement, that is, the film is cut and the pressure roller 8 is pressed at the same time, then start the second motor 21, the output end of the second motor 21 drives the transmission gear 22 to rotate, so that the transmission gear 22 drives the sliding plate 7 and the pressure roller 8 to slide downward through the meshing relationship, that is, the subsequent film is wound on the outside of the replaced winding roll 5 through the pressure roller 8, then reverse the output end of the second motor 21, drive the pressure roller 8 to reset through the opposite process, and drive the replaced winding roll 5 to rotate through the driving device inside the rotating disc 3 to continue winding the film, and reverse the output end of the first motor 13, that is, drive the cutting knife 9 and the moving frame 6 to reset through the opposite process, thereby facilitating subsequent replacement work, the device can quickly replace the winding roll 5 after winding the film through simple operation, and can cut the film through the cutting knife 9 during replacement, and press the film on the subsequent winding roll 5 through the pressure roller 8 to facilitate continuous winding, thereby replacing the trouble of manual replacement, greatly reducing the labor cost, and improving the film winding efficiency, the feeding roller 24 can continuously feed the film, and the external controller can facilitate the quick control of the first motor 13, the second motor 21 and the third motor 23 by the worker.

[0029] The above front, rear, left, right, up and down are based on the drawings of the specification Figure 1 as the standard, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0030] In the description of the utility model, it is understood that the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the utility model.

[0031] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A PVB film automatic roll changing equipment comprising a base (1), characterized in that, The top of the base (1) is symmetrically connected with support frames (2), the inner sides of the two support frames (2) are rotatably connected with rotating discs (3), the inner sides of the rotating discs (3) are equidistantly rotatably connected with multiple groups of mounting discs (4), each group of the mounting discs (4) is detachably connected with winding rollers (5), the top of the base (1) is slidably connected with a moving frame (6) through a limiting column (10) on the side close to the rotating disc (3), the inner sides of the moving frame (6) are slidably connected with sliding plates (7), the two sliding plates (7) are fixedly connected with a pressing roller (8), the top of the base (1) is provided with a cutting knife (9) between the rotating disc (3) and the moving frame (6), the top of the base (1) is provided with a transmission assembly, and the moving frame (6) is provided with a pressing assembly.

2. The automatic roll changing apparatus for PVB film according to claim 1, characterized in that, The transmission assembly comprises limiting blocks (11) and a linkage unit, the limiting blocks (11) are symmetrically fixedly connected to the top of the base (1) away from the limiting column (10) on one side, the first screw rods (12) are rotatably connected between the two limiting blocks (11), the first motors (13) are fixedly connected to the outer sides of the limiting blocks (11) through mounting plates, the output ends of the first motors (13) extend to the inner sides of the limiting blocks (11) and are fixedly connected with the first screw rods (12), the first belt pulleys (14) are fixedly connected to the outer sides of one end of the first screw rods (12), and the cutting knife (9) can be moved through the linkage unit.

3. The automatic roll changing apparatus for PVB film according to claim 2, characterized in that, The linkage unit comprises a second screw rod (16), the top of the base (1) is fixedly connected with a fixed seat (15) on one side of the moving frame (6), the second screw rod (16) is rotatably connected to the inside of the fixed seat (15), the cutting knife (9) is slidably connected to the inside of the fixed seat (15), the cutting knife (9) is threadedly connected to the outside of the second screw rod (16), one end of the second screw rod (16) extends to the outside of the fixed seat (15) and is fixedly connected with a second bevel gear (20), a first bevel gear (17) is rotatably connected to the outer side of the fixed seat (15) through a limiting plate, the first bevel gear (17) is meshedly connected with the second bevel gear (20), the second belt pulley (18) is fixedly connected to the outside of the first bevel gear (17), and the first belt pulley (14) and the second belt pulley (18) are drivingly connected through a transmission belt (19).

4. The automatic roll changing apparatus for PVB film according to claim 3, characterized in that, The pressing assembly comprises a second motor (21), the second motor (21) is fixedly connected to the bottom side of the moving frame (6) through a mounting block, the output end of the second motor (21) is fixedly connected with a transmission gear (22), the outer side of the sliding plate (7) is provided with teeth, and the transmission gear (22) is meshedly connected with the sliding plate (7) through the teeth.

5. The automatic roll changing apparatus for PVB film according to claim 4, characterized in that, The inner top of the support frame (2) is fixedly connected with a third motor (23), the output end of the third motor (23) is fixedly connected with the rotating disc (3), and the mounting disc (4) is driven to rotate through a driving device in the rotating disc (3).

6. The automatic roll changing apparatus for PVB film according to claim 5, characterized in that, The top of the base (1) is provided with a feeding roller (24) away from the side of the rotary disc (3), and the first motor (13), the second motor (21) and the third motor (23) are electrically connected with an external controller.