CN204917334U - Broad width paper coating machine feeding change of lap mechanism - Google Patents

Abstract

The utility model discloses a feeding and rewinding mechanism for a wide-width paper coating machine, which comprises a frame. The frame includes two parallel vertical side plates, and an unwinding shaft and a transmission shaft are rotatably arranged between the vertical side plates. The unwinding shaft and the transmission shaft are parallel, and the two ends of the unwinding shaft are fixedly equipped with a gear turntable, and the gear turntable cooperates with the vertical side plate through the turntable bearing. A transmission unit is provided respectively, and the first synchronous pulley located on the same side of the frame is connected with the gear turntable through the transmission unit, and one end of the transmission shaft is connected with the driving motor. The feeding and roll changing mechanism of the wide-width paper coating machine has a simple structure. By setting transmission mechanisms on both sides of the frame, the gear turntables on the two vertical side plates are driven to rotate synchronously, so that at least two The overturning of the unwinding shaft makes the full roll unwinding shaft turn to a position convenient for unwinding, ensuring continuous unwinding at the feed end of the coating machine.

Description

Feed and roll changing mechanism of a wide-width paper coating machine

technical field

The utility model relates to a roll changing device in the production process of a double-sided adhesive tape, in particular to a feed and roll changing mechanism for a wide-width paper coating machine.

Background technique

Double-sided adhesive tape is a roll-shaped adhesive tape made of paper, cloth, and plastic film as the base material, and then uniformly coated with elastomer-type pressure-sensitive adhesive or resin-type pressure-sensitive adhesive on the above-mentioned base material. Adhesive, release paper (membrane) or silicone oil paper consists of three parts. The commonly used double-sided adhesive tape uses base paper as the adhesive medium, and generally uses softwood pulp as the raw material for papermaking. The obtained base paper has high physical strength, large vertical and horizontal tensile ratio, and good paper surface uniformity.

When the above-mentioned base paper is fed, it is unwinding and feeding. Traditional feeding equipment, such as a dual-purpose device for rewinding and unwinding disclosed in CN2020978935U, adopts a combination of ordinary pulleys, timing belts and motors to rotate and connect. The motor passes through The motor seat is fixed on the lower part of the unwinding support. In the above structure, there is only one unwinding shaft. In actual use, when the paper on the unwinding shaft is exhausted, it is necessary to stop the machine and install a new paper reel. The coating of the glue solution cannot be carried out continuously, which will directly lead to a drop in coating efficiency. . Therefore, it is necessary to improve the structure of the unwinding equipment in the prior art.

Utility model content

The purpose of the utility model is to overcome the defects existing in the prior art, and provide a feed-in and roll-changing mechanism for a wide-width paper coating machine with a simple structure and convenient use.

In order to achieve the above-mentioned technical effect, the technical solution of the utility model is: a feeding and changing mechanism of a wide-width paper coating machine, which is characterized in that it includes a frame, and the frame includes two parallel vertical side plates, vertically A transmission shaft and at least two unwinding shafts are arranged between the side plates. The unwinding shaft and the transmission shaft are parallel, and the two ends of the unwinding shaft are fixedly connected with the gear turntable. The first synchronous pulley is fixedly installed at both ends of the frame, and transmission units are respectively provided on both sides of the frame. motor connection.

In order to ensure the simple structure of the transmission mechanism, realize accurate roll change angle control, and shorten the length of the synchronous belt as much as possible to ensure its service life under heavy load conditions, the preferred technical solution is that the transmission unit includes a short shaft, a synchronous belt , the second synchronous pulley and the gear, the short shaft is rotatably connected to the vertical side plate on the same side, the second synchronous pulley and the gear are closely matched with the end of the short shaft protruding from the vertical side plate, and the synchronous belt is wound On the outer edges of the first synchronous pulley and the second synchronous pulley, the gears mesh with the gear turntable on the same side.

In order to ensure the static friction between the unwinding shaft and the paper roll, and to ensure stable feeding, the preferred technical solution is that the unwinding shaft is an air-expanding shaft.

A preferred technical solution may also be that a synchronous belt tensioning mechanism is arranged near the synchronous belt.

In order to further extend the service life of the synchronous belt and ensure the transmission efficiency of the synchronous belt, the preferred technical solution is that the synchronous belt tensioning mechanism includes a positioning block fixedly connected with the vertical side plate, and the positioning block is provided with a through hole, so An optical shaft is fitted in the through hole, a pulley seat is provided at one end of the optical shaft, and a fixed pulley is arranged on the pulley seat. The two ends of the stage clip are pressed against the pulley seat and the positioning block.

Advantage and beneficial effect of the present utility model are:

The feeding and roll changing mechanism of the wide-width paper coating machine has a simple structure. By setting transmission mechanisms on both sides of the frame, the gear turntables on the two vertical side plates are driven to rotate synchronously, so that at least two The overturning of the unwinding shaft makes the full roll unwinding shaft turn to a position convenient for unwinding, ensuring continuous unwinding at the feed end of the coating machine.

Description of drawings

Fig. 1 is the structure schematic diagram of the feeding roll changing mechanism of the wide-width paper coating machine of the present invention;

Fig. 2 is a right side view of Fig. 1 .

In the figure: 1. Vertical side plate; 2. Unwinding reel; 3. Transmission shaft; 4. Gear turntable; 5. Turntable bearing; 6. First synchronous pulley; 7. Transmission unit; 7-1. Short shaft; 7-2, synchronous belt; 7-3, second synchronous pulley; 7-4, gear; 8, drive motor; 9, positioning block; 10, optical axis; 11, pulley seat; 12, fixed pulley; 13, Compression spring.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is further described. The following examples are only used to illustrate the technical solution of the utility model more clearly, but not to limit the protection scope of the utility model.

As shown in Figure 1 and Figure 2, the feeding and changing mechanism of the wide-width paper coating machine in the embodiment includes a frame, and the frame includes two parallel vertical side plates 1, and a transmission shaft is arranged between the vertical side plates 1 3 and at least two unwinding shafts 2, the unwinding shaft 2 is parallel to the transmission shaft 3, the two ends of the unwinding shaft 2 are fixedly connected with the gear turntable 4, the gear turntable 4 cooperates with the vertical side plate 1 through the turntable bearing 5, and the transmission shaft The two ends of 3 are fixedly provided with the first synchronous pulley 6, and the two sides of the frame are respectively provided with transmission units 7, and the first synchronous pulley 6 and the gear turntable 4 on the same side of the frame are connected through the transmission unit. One end of the shaft 3 is connected to a drive motor 8 .

The transmission unit 7 includes a short shaft 7-1, a synchronous belt 7-2, a second synchronous pulley 7-3 and a gear 7-4, the short shaft 7-1 is rotatably connected with the vertical side plate 1 on the same side, and the second The synchronous pulley 7-3 and the gear 7-4 are closely matched with the end of the short shaft 7-1 protruding from the vertical side plate 1, and the synchronous belt 7-2 is wound around the first synchronous pulley 6 and the second synchronous pulley 7 -3 outer rim, gear 7-4 meshes with the gear turntable 4 on the same side.

In this embodiment, the unwinding shaft 2 is an inflatable shaft.

A synchronous belt tensioning mechanism is arranged near the synchronous belt 7-2.

The synchronous belt tensioning mechanism includes a positioning block 9 fixedly connected to the vertical side plate. The positioning block 9 is provided with a through hole, and an optical shaft 10 is arranged in the through hole. One end of the optical shaft 10 is provided with a pulley seat 11, and the pulley seat 11 is provided with a fixed pulley 12, the wheel surface of the fixed pulley 12 is pressed against the synchronous belt 7-2, and the outer circumference of the optical axis 10 is provided with a compression spring 13, and the two ends of the compression spring 13 are in phase with the pulley seat 11 and the positioning block 9 top pressure.

When in use, the output end of the driving motor drives the transmission shaft to rotate, and the first synchronous pulley at both ends of the transmission shaft drives the second synchronous pulley on the short shaft through the synchronous belt, and the second synchronous pulley drives the short shaft and the gears on it to rotate , the gear drives the gear turntable that meshes with it to rotate, and the gear turntable on the two parallel vertical side plates drives the unwinding shaft fixedly connected to it to turn over, so that the empty unwinding shaft is located at a position that is easy to replace. The combination of synchronous belt and gear transmission can make the feeding of wide-width paper smooth and ensure the precise control of the roll changing angle.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and modifications can also be made. And retouching should also be regarded as the protection scope of the present utility model.

Claims (5)

1. a wide cut paper coating machine charging coil replacing mechanism, it is characterized in that, comprise frame, described frame comprises two parallel vertical side plates, transmission shaft and at least two unreeling shafts are provided with between vertical side plate, unreeling shaft and transmission shaft parallel, the two ends of unreeling shaft are fixedly connected with gear turntable, gear turntable is matched with vertical side plate by turntable bearing, the two ends of transmission shaft are fixedly installed the first synchronous pulley, frame both sides are respectively arranged with gear unit, be connected by gear unit between first synchronous pulley and gear turntable of frame homonymy, one end of transmission shaft is connected with drive motor.

2. wide cut paper coating machine charging coil replacing mechanism according to claim 1, it is characterized in that, gear unit comprises minor axis, Timing Belt, the second synchronous pulley and gear, the vertical side plate of described minor axis and homonymy is rotatably connected, second synchronous pulley and gear and minor axis protrude from one end flush fit of vertical side plate, Timing Belt winding is in the outer rim of the first synchronous pulley and the second synchronous pulley, and gear is meshed with the gear turntable of homonymy.

3. wide cut paper coating machine charging coil replacing mechanism according to claim 1, it is characterized in that, unreeling shaft is gas expansion shaft.

4. wide cut paper coating machine charging coil replacing mechanism according to claim 2, is characterized in that, be provided with Timing Belt stretching device near Timing Belt.

5. wide cut paper coating machine charging coil replacing mechanism according to claim 4, it is characterized in that, Timing Belt stretching device comprises the locating piece be fixedly connected with vertical side plate, described locating piece is provided with through hole, is equipped with optical axis in described through hole, one end of described optical axis is provided with pulley base, pulley base is provided with fixed pulley, the wheel face of fixed pulley pushes up pressure mutually with Timing Belt, and optical axis periphery is arranged with stage clip, and pressure is pushed up mutually with pulley base and locating piece in the two ends of stage clip.