KR20200124409A - apparatus and method for exchanging roll - Google Patents

Abstract

The present invention relates to a roll exchange device and to a roll exchange method using the same and, more specifically, to a roll exchange device which can continuously and automatically exchange a roll without interruption of work when a fabric is extruded and molded by melting a synthetic resin, is wound on a bobbin, and is wound a roll form, and to a roll exchange method using the same.

Description

Roll exchange device and method for exchanging roll using the same{apparatus and method for exchanging roll}

The present invention relates to a roll exchange device and a roll exchange method using the same, and more particularly, a roll capable of continuously changing rolls without interruption of work when a fabric extruded by melting a synthetic resin is wound on a bobbin and wound in a roll form. It relates to an exchange device and a roll exchange method using the same.

In order to manufacture products such as various bags and mulching paper, synthetic resin, which is a raw material, is melted in an extruder and extruded. The extruded fabric is conveyed in a certain path through a plurality of guide rollers, and wound in a roll form through a winder.

For example, as disclosed in Korean Patent Registration No. 10-1357275, an extruder that melts and extrudes the mulching vinyl raw material, and a tube in which the raw material extruded through the extruder is formed into a tube having uniform dimensions. The nozzle and the tube that separates the tube vinyl supplied through the tube nozzle into double vinyl, the constricting roller that constricts the vinyl supplied through the constricting roller, and the vinyl that has passed through the constricting roller are transported in multiple stages while cooling and finally It consists of a winder that winds up in the form of a roll.

A conventional winder mounts a bobbin on one or more shafts and then winds the vinyl on the bobbin. Therefore, when a certain amount is wound around the bobbin, the bobbin must be replaced with an empty one, so there is a problem that the work is stopped.

Korean Patent Registration No. 10-1357275

The present invention was created to improve the above problems, and a roll exchange device capable of automatically changing rolls continuously without interruption of work when a fabric extruded by melting synthetic resin is wound on a bobbin and wound in a roll form, and roll exchange using the same Its purpose is to provide a method.

In order to achieve the above object, the roll exchange device of the present invention includes first and second winding shafts that are separated from each other and arranged side by side, respectively equipped with bobbins that are extruded and continuously conveyed in a roll form, and the A winding unit including first and second winding drive units for rotating the first and second winding shafts, respectively; A shaft position changing means for changing the positions of the first and second winding shafts when the raw material is wound on a bobbin mounted on one of the first and second winding shafts by a set amount; And a far-end position adjusting means for contacting the fabric to an empty bobbin among bobbins mounted on the first and second take-up shafts when the positions of the first and second take-up shafts are changed.

The shaft position exchange means is a turret table in which the first and second winding shafts are installed side by side, a main shaft coupled to the center of the turret table, and the first and second winding shafts are fixed by rotating the main shaft. It has a main driving unit that rotates along a radius orbit.

The first and second winding shafts are installed to be spaced apart from each other with the center of the turret table therebetween.

The far-end position control means is a swing frame hinged to the support frame and capable of swinging up and down, a guide roller installed on the support frame to have the same rotational center as the swing frame to guide the movement of the fabric, and the swing frame A pressure roller installed in the guide roller to press the fabric through the guide roller to contact an empty bobbin among bobbins mounted on the first and second winding shafts, and a pressure roller installed on the support frame to move the swing frame up and down It is equipped with an actuator to make.

When the fabric is in contact with an empty bobbin among the bobbins mounted on the first and second winding shafts by the fabric position adjusting means, the fabric is cut to cause the fabric to be wound around the empty bobbin; Equipped.

And the roll exchange method of the present invention to achieve the above object is the first of the first bobbin mounted on the first winding shaft and the second bobbin mounted on the second winding shaft, winding the fabric in a roll form on the first bobbin. A winding step; A position exchange step of changing the positions of the first and second winding shafts when the fabric is wound around the first bobbin by a set amount; A fabric position adjusting step of contacting the fabric with the second bobbin when the positions of the first and second winding shafts are changed; A second winding step of cutting the fabric between the first bobbin and the second bobbin and winding the fabric in a roll shape on the second bobbin; And a roll separating step of separating the first bobbin from the first winding shaft.

As described above, according to the present invention, by installing a plurality of winding shafts capable of winding the fabric in the form of a roll on the turret table, the positions of the winding shafts can be changed by rotation of the turret table so that the roll can be efficiently exchanged.

In addition, since the rotation of the turret table and the rotation of the swing frame can be automatically controlled, the present invention can automate the roll exchange, which was conventionally performed manually by an operator.

1 is a perspective view of a roll exchange device according to an example of the present invention,
Figure 2 is a front view of Figure 1,
3 is a plan view showing a main part of FIG. 1,
Figure 4 is a side view showing the main part of Figure 1,
Figure 5 is a perspective view showing the use state of Figure 1,
Figure 6 is a side view showing the use state of Figure 1,
7 is a schematic diagram schematically showing the use state of FIG. 1 in sequence,
8 is a perspective view showing a main part of a roll exchange device according to another example of the present invention.

Hereinafter, a roll exchange device according to a preferred embodiment of the present invention and a roll exchange method using the same will be described in detail with reference to the accompanying drawings.

1 to 6, the roll exchange device of the present invention largely includes a winding unit, a shaft position exchange unit, and a distal position adjustment unit.

The winding unit is spaced apart from each other and arranged in parallel with the first and second winding shafts (1) (3) and the first and second winding drive units for rotating the first and second winding shafts (1) (3), respectively. Includes.

The first winding shaft 1 is formed long in one direction. In addition, the second winding shaft 3 is also formed long in the same direction and is installed in parallel with the first winding shaft 3.

The first winding shaft 1 and the second winding shaft 3 are installed on a circular turret table 20 to be described later. The first and second winding shafts 1 and 3 are located in an area out of the center of rotation of the turret table 20. These first and second winding shafts 1 and 3 are installed side by side with the center of the turret table 20 interposed therebetween. Therefore, when the turret table 20 rotates, the first and second winding shafts 1 and 3 rotate along a trajectory of a certain radius around the center of rotation of the turret table 20.

The first and second winding shafts 1 and 3 are positioned on a virtual straight line passing through the center of rotation of the turret table 20. Therefore, when the turret table 20 rotates 180 degrees, the positions of the first and second winding shafts 1 and 3 are changed.

Bobbins 2 and 4 are mounted on the first and second winding shafts 1 and 3, respectively. For convenience of explanation, a bobbin mounted on the first winding shaft 1 is referred to as a first bobbin 2, and a bobbin mounted on the second winding shaft 3 is referred to as a second bobbin 4.

The first and second bobbins 2 and 4 are formed in the form of a hollow pipe. The first and second bobbins 2 and 4 may be formed of paper or synthetic resin material. The fabric 100 is wound in a roll form outside the first and second bobbins 2 and 4.

The first and second take-up shafts (1) and 3 are independently rotated by the first and second take-up driving units.

The first and second winding drive units are installed on the other surface of the turret table 20.

The first take-up drive unit includes a first take-up motor 11 mounted on the other surface of the turret table 20, a drive sprocket 12 coupled to the drive shaft of the first take-up motor 11, and a first take-up shaft 1 It consists of a driven sprocket 13 coupled to one end of the, and a chain 14 connecting the driving sprocket 12 and the driven sprocket 13.

The second take-up drive unit includes a second take-up motor 15 mounted on the other surface of the turret table 20, a drive sprocket 16 coupled to the drive shaft of the second take-up motor 15, and a second take-up shaft 3 It consists of a driven sprocket 17 coupled to one end of the, and a chain 18 connecting the driving sprocket 16 and the driven sprocket 17.

The second take-up motor 15 is spaced apart from the first take-up motor 11 and is installed side by side. The first and second winding motors 11 and 15 are each independently driven. The first winding shaft 1 rotates by the driving of the first winding motor 11, and the second winding shaft 3 rotates by the driving of the second winding motor 15.

The shaft position exchange means is the first and second winding shafts (1) (3) of the first and second winding shafts (1) (3) when the fabric 100 is wound on the bobbin mounted on any one of the first and second winding shafts (1) (3). It serves to change the position.

The shaft position exchange means is installed on the support frame 110. The support frame 110 is formed in a predetermined shape and size by combining a plurality of angular pipes in the horizontal and vertical directions.

The shaft position exchange means includes a turret table 20 in which the first and second winding shafts 1 and 3 are installed side by side, a main shaft 21 coupled to the center of the turret table 20, and a main shaft 21 ) Is rotated to rotate the first and second winding shafts 1 and 3 along a trajectory of a predetermined radius.

The turret table 20 is formed in a disk shape. As described above, the first and second winding shafts 1 and 3 are installed on one surface of the turret table 20. The first and second winding shafts 1 and 3 are coupled to a bearing mounted on the turret table 20 and pass through the turret table 20. Ends of the first and second winding shafts 1 and 3 passing through the turret table 20 are exposed to the other surface of the turret table 20.

The main shaft 21 is coupled to the center of the turret table 20 to extend a predetermined length. The main shaft 21 is supported to be rotatable on the support frame 110.

The main driving unit includes a main motor 23 installed on the support frame 110, a drive sprocket 24 coupled to the drive shaft of the main motor 23, a driven sprocket 25 coupled to the main shaft 21, and It consists of a chain 26 connecting the driving sprocket 24 and the driven sprocket 25.

The main shaft 21 rotates by the driving of the main motor 23, and accordingly, the turret table 20 rotates. Each time the turret table 20 is rotated by 180 degrees, the positions of the first winding shaft 1 and the second winding shaft 3 are changed.

When the positions of the first and second winding shafts (1) (3) are changed, the fabric position adjusting means attaches the fabric (100) to an empty bobbin among the bobbins mounted on the first and second winding shafts (1) (3). It serves to make contact. An empty bobbin means a bobbin in which the fabric is not wound.

The far-end position adjusting means is hinged to the support frame 110 and is installed on the support frame 110 to have the same rotational center as the swing frame 30 and the swing frame 30 capable of swinging up and down. The guide roller 40 for guiding the movement and the fabric 100 installed on the swing frame 30 and passed through the guide roller 40 are pressed and mounted on the first and second winding shafts (1) (3). Among the bobbins, a pressure roller 45 that contacts an empty bobbin and an actuator 48 that is installed on the support frame 110 and moves the swing frame 30 up and down are provided.

The swing frame 30 is hingedly coupled to the support frame 110. The swing frame 30 may rotate in the vertical direction using the hinged portion as a rotation center.

The swing frame 30 includes a pair of swing bars 31 that are spaced apart from each other and installed side by side, and a connecting rod 33 that connects the swing bars 31.

One end of the swing bar 31 is hinged to the hinge bracket 32 installed on the support frame 110. The hinge brackets 32 are spaced a certain distance and installed side by side. Both sides of the guide roller 40 are rotatably coupled to the hinge bracket 32. This guide roller 40 has the same rotation center as the swing frame 30.

A pair of transfer rollers 60 are installed on the upper part of the support frame 110, and an auxiliary roller 65 is installed at the lower part of the transfer roller.

A motor 63 is connected to one of the transfer rollers 60 to rotate. The transfer roller 60 is installed to be rotatable on the support frame 110. The fabric 100 passing through the conveying roller 60 is moved in the direction of the winding unit by changing the direction in the guide roller 40 via the auxiliary roller 65.

The pressure roller 45 is installed on the swing frame 30. Both sides of the pressure roller 45 are rotatably coupled to the swing bar 31.

When the swing frame 30 moves up and down, the guide roller 40 is fixed in position, but the pressure roller 45 moves up and down together with the swing frame 30.

The actuator 48 is installed on the support frame 110 to move the swing frame 30 up and down.

As an example of the actuator 48, a cylinder may be used. Two cylinders are installed and each is coupled to the swing bar (31). The upper and lower portions of the cylinder are hinged to the swing bar 31 and the support frame 110, respectively. The actuator 48 is installed below the swing frame 30.

When the actuator 48 is operated, the swing frame 30 rotates in the vertical direction. When the swing frame 30 rotates upward, the pressure roller 45 moves away from the bobbin, and when the swing frame 30 rotates downward, the pressure roller 45 gradually approaches the bobbin to bring the fabric 100 into contact with the bobbin. Plays a role. When the fabric is cut while the empty bobbin and the fabric 100 are in contact with each other by the pressure roller 45, the fabric starts to be wound around the empty bobbin from the cut part.

The cutting of the fabric 100 can be performed manually by an operator using a cutter knife. However, in order to cut the fabric by hand, it requires a skilled worker's skill. In addition, since the fabric moving at a constant speed is cut in the transverse direction, the cut portion is actually formed in an oblique line. There is a problem that the fabric part cut with a diagonal line cannot be used and is discarded at the site. Therefore, it is possible to minimize the area of the fabric cut with diagonal lines when cutting accurately and at high speed by a mechanical method.

An example of such a cutting part includes a guide rail 50 installed on the swing frame 30, a sliding block 51 that is coupled to the front surface of the guide rail 50 and is movable, and a cutter knife mounted on the slide block 51 (53) can be provided. The cutter knife 53 is formed vertically on the slide block 51. In the cutter knife, the part facing the fabric is the part of the blade 54.

The slide block 51 moves at high speed along the guide rail 50. For example, the slide block 51 can be moved by high-pressure air. Depending on the air supply direction, the slide block 51 moves left or right. Along the slide block 51, the cutter knife 53 cuts the fabric while moving in a direction perpendicular to the moving direction of the fabric 100.

In addition, as long as the structure capable of moving the slide block 51 along the guide rail 50 in the left and right direction, it is of course possible to move the slide block 51 using various known means in addition to high-pressure air.

A far-end tension part 57 is provided for horizontally maintaining the fabric that has passed through the pressure roller 45 to facilitate cutting of the fabric. The far-end tension part 57 is formed to be bent downward from the base plate 58 coupled to the upper part of the guide rail 50 and the base plate 58 so that the end portion passes through the pressure roller 45. It consists of a contact plate 59 in contact with.

The fabric 100 that has passed the pressure roller 45 is pressed against the end of the contact plate 59 to maintain a horizontal state, and the cutter knife 53 passes between the contact plate 59 and the pressure roller 45 The fabric 100 is cut in the transverse direction.

Hereinafter, a roll exchange method using the roll exchange device of the present invention will be described with reference to FIGS. 1 and 7.

First, the first bobbin (2) mounted on the first winding shaft (1) and the second bobbin (4) mounted on the second winding shaft (3) are first wound in the form of a roll. do.

The fabric 100 is extruded in an extrusion molding machine and continuously moves along a certain path and passes between a pair of transfer rollers 60 installed on the support frame. The fabric passing through the conveying roller 60 is changed in direction by the guide roller 40 and moved in the direction of the winding unit.

In FIGS. 1 and 7, when the winding shaft located closer to the guide roller 40 is referred to as the first winding shaft (1), and the bobbin mounted on the first winding shaft (1) is referred to as the first bobbin (2), A winding shaft located far from the guide roller 40 is referred to as a second winding shaft 3, and a bobbin mounted on the second winding shaft 3 is referred to as a second bobbin 4.

The fabric that has passed through the guide roller 40 is first wound around the first bobbin 2 and starts to be wound (Fig. 7a). While being wound on the first bobbin 2, the swing frame 30 is positioned above.

Next, as shown in b of FIG. 7, when the fabric 100 is wound around the first bobbin 2 by a set amount, the positions of the first and second winding shafts 1 and 3 are changed.

To this end, the main motor 23 is driven to rotate the turret table 20 counterclockwise 180 degrees (Fig. 7c). By the rotation of the turret table 20, the positions of the first winding shaft 1 and the second winding shaft 3 change.

Next, when the positions of the first and second winding shafts 1 and 3 are changed, the pressure roller 45 is lowered to bring the fabric 100 into contact with the second bobbin 4.

To this end, the actuator 48 is operated to move the swing frame 30 downward. When the swing frame 30 moves downward, the pressing roller 45 presses the fabric 100 to contact the second bobbin 4 as shown in d of FIG. 7. The fabric 100 is continuously wound around the first bobbin 2 while the fabric 100 is in contact with the second bobbin 4 by the pressure roller 45.

Next, the fabric 100 is cut between the first bobbin 2 and the second bobbin 4, and the fabric 100 is wound around the second bobbin 4 in a roll form.

The fabric 100 is cut using the cutter knife 53 of the cutting part. In addition to this, the operator can also cut manually.

When the fabric 100 is cut, the fabric starts to be wound around the second bobbin 4 from the cut part. And when the fabric starts to be wound on the second bobbin 4, the actuator 48 is operated to move the swing frame 30 upward to separate the pressure roller from the fabric (Fig. 7 e).

Next, when the fabric 100 is wound on the second bobbin 4, the first winding motor is stopped to stop the rotation of the first winding shaft 1, and then the first bobbin in which the fabric is wound in the form of a roll 105. Separate (2) from the first winding shaft (1). Then, a new first bobbin is mounted on the first take-up shaft (1).

When the fabric 100 is wound around the second bobbin 4 by a certain amount, the turret table 20 is rotated 180 degrees counterclockwise to change the positions of the first and second winding shafts.

By repeating the above process, since the rolls can be exchanged without interruption of the extrusion-molded fabric continuously moving, the work of winding the fabric can be continuously performed.

In the above, the present invention has been described with reference to the embodiments shown in the drawings, but these are only exemplary, and those of ordinary skill in the art will appreciate that various modifications and equivalent embodiments are possible therefrom. Therefore, the true scope of protection of the present invention should be determined only by the appended claims.

1: 1st winding shaft 3: 2nd winding shaft
11: 1st take-up motor 15: 2nd take-up motor
20: turret table 21: main shaft
23: main motor 30: swing frame
40: guide roller 45: pressure roller
48: actuator 100: fabric

Claims (6)

The first and second winding shafts each of which are extruded and continuously conveyed in a roll form are mounted, and the first and second winding shafts are spaced apart from each other, and the first and second winding shafts are rotated And a winding unit including a second winding driving unit;
A shaft position changing means for changing the positions of the first and second winding shafts when the raw material is wound on a bobbin mounted on one of the first and second winding shafts by a set amount;
And a fabric position adjusting means for contacting the fabric to an empty bobbin among bobbins mounted on the first and second winding shafts when the positions of the first and second winding shafts are changed; . The method of claim 1, wherein the shaft position exchange means comprises a turret table in which the first and second winding shafts are installed side by side, a main shaft coupled to the center of the turret table, and the first and second winding shafts are rotated to rotate the main shaft. A roll exchange device comprising a main driving unit for rotating the second winding shaft along a trajectory of a predetermined radius. The roll exchange device according to claim 2, wherein the first and second take-up shafts are installed to be spaced apart from each other with a center of the turret table therebetween. The method of claim 1, wherein the far-end position adjusting means is a swing frame hinged to the support frame and capable of swinging up and down, and a guide installed on the support frame to have the same rotational center as the swing frame to guide the movement of the fabric. A roller and a pressure roller installed on the swing frame to press the fabric passing through the guide roller to contact an empty bobbin among the bobbins mounted on the first and second winding shafts, and a pressure roller installed on the support frame to the A roll exchange device comprising an actuator that moves the swing frame up and down. The method of claim 1, wherein when the fabric is in contact with an empty bobbin among bobbins mounted on the first and second winding shafts by the fabric position adjusting means, the fabric is cut and wound around the empty bobbin. The roll exchange device further comprising a; A first winding step of winding the fabric on a first bobbin among the first bobbin mounted on the first winding shaft and the second bobbin mounted on the second winding shaft in the form of a roll;
A position exchange step of changing positions of the first and second winding shafts when the fabric is wound around the first bobbin by a set amount;
A fabric position adjusting step of contacting the fabric with the second bobbin when the positions of the first and second winding shafts are changed;
A second winding step of cutting the fabric between the first bobbin and the second bobbin and winding the fabric in a roll shape on the second bobbin;
And a roll separation step of separating the first bobbin from the first winding shaft.

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