JP2006282186A - Film-wrapping apparatus for threadlike package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a film-wrapping apparatus for a threadlike package with a simple structure and a small installation space capable of reducing a facility cost. <P>SOLUTION: The film-wrapping apparatus for a threadlike package includes a supporting means of the threadlike package, a conveyance means for carrying the supporting means together with the package, a film extending means for feeding a film from a roll of the film to extend the fed film, a welding means for welding the film surrounding the threadlike package and a cutting means for cutting the film. It feeds the film from one roll of the film and successively wraps the package by a single sheet of the film. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a film packaging apparatus for a yarn package for packaging a yarn package such as a long fiber with a sheet-like film.

2. Description of the Related Art Conventionally, as a so-called film packaging in which a yarn package is packaged with a thermoplastic synthetic resin film or the like, a film that uses a plurality of films and cuts and welds them is known. For example, a film packaging apparatus for a yarn package described in Patent Document 1 includes a plurality of film supply units, and the yarn package is packaged with a film supplied from these supply units. In addition to this, a film packaging apparatus for a yarn package similar to Patent Document 2 is disclosed.
Japanese Utility Model Publication No. 63-202604 JP-A-8-72815

  However, in the case of a device configuration including a plurality of film supply units as in the conventional yarn package film wrapping device as described above, the space for the supply unit inevitably increases, and the installation area of the device increases. In addition, since film supply units are installed at both ends in most apparatuses, there is a problem that handling becomes difficult and the equipment cost increases.

  Accordingly, an object of the present invention is to provide a film packaging apparatus for a yarn package that can simplify the apparatus configuration, reduce the installation space of the apparatus, and reduce the equipment cost in order to solve the above problems. It is in.

  In order to solve the above-described problems, a film packaging apparatus for a yarn package according to the present invention includes a yarn package supporting unit, a conveying unit that conveys the yarn package supporting unit together with the yarn package, and a roll-shaped film. Film packaging apparatus for a yarn package, comprising: a film stretching means for feeding a film and stretching the supplied film; a welding means for welding a film surrounding the yarn package; and a cutting means for cutting the film And it consists of the apparatus characterized by supplying a film from one roll-shaped film, and performing the packaging operation | work of a yarn package continuously with one film.

  In the yarn package film packaging apparatus, as the film stretching means, for example, the one sheet of film can be stretched in a direction crossing the yarn package conveyance path.

  In addition, the film packaging apparatus for the yarn package preferably has means for sucking and holding the single film around the yarn package.

  Further, in the film packaging apparatus for the yarn package, in order to prevent damage to the yarn package at the time of packaging, for example, the yarn package moves together with the conveying means, and the one film is wound around the yarn package. A structure having an auxiliary roller that floats and supports the strip package can be formed.

  According to the film packaging apparatus for a yarn package according to the present invention, since the film supply unit is provided as one, and one film is supplied therefrom so that the yarn package can be packaged, the structure becomes simple. The device can be easily manufactured, and the equipment cost can be reduced to 1/2 or less as compared with a conventional device of substantially the same specification. Also, the installation space can be greatly reduced, and the equipment cost can be reduced from this aspect. Furthermore, by using a single film supply unit and a simple structure, the operation can be facilitated, adjustment and the like can be facilitated, and the maintainability is improved.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
1 to 3 show a film packaging apparatus for a yarn package according to an embodiment of the present invention. In the figure, the film packaging apparatus includes a tray 2 as a support means for the yarn package 1, a transport conveyor device 3 as a transport means for transporting the yarn package support means together with the yarn package, and a roll-shaped film 5. A film stretching device 12 serving as a film stretching means that feeds the film 6 to be unwound and stretches the supplied film 6 in a direction crossing the conveyance path of the yarn package 1, and the yarn package 1 at the time of packaging. In order to prevent damage, the auxiliary roller 4 that moves together with the tray 2 and supports the one film 6 that floats from the yarn package 1 around the yarn package 1 at the packaging position, and the film 6 as a yarn. A film suction device 11 as a means for sucking and holding around the package 1 and a film 6 surrounding the yarn package 1 The film welding heater 10 as a welding means for welding, and a film cutting cutter 9 as a cutting means for cutting the film 6.

  The transport conveyor apparatus 3 of the present film packaging apparatus is provided with a base for placing the tray 2 and moves together with the yarn package 1 and the tray 2 (with the tray 2 when returning) from the transport inlet to the transport outlet of the packaging apparatus. . The yarn package 1 is transported to the film packaging apparatus transport entrance while riding on the tray 2, and stops at the standby position (position A in FIG. 1). An auxiliary roller 4 on the base is installed at a standby position A at the conveyance entrance of the film packaging apparatus. In this embodiment, there are four auxiliary rollers 4 (two in total, four in total), which are arranged so as to surround the outer periphery of the yarn package 1 on the tray 2, and each auxiliary roller 4 is rotatable. It is supported.

  The film stretching device 12 includes a roll film 5, a film 6, a first clamp device 7, and a second clamp device 8. Before the packaging position (position B in FIG. 1) on the straight line from the conveyance inlet to the conveyance outlet of the yarn package 1 (that is, the conveyance path), a roll shape crosses the straight line (conveyance path). A film 6 unwound (unwound) from the film 5 is stretched through a clamping device. As the film 6 used here, a thermoplastic synthetic resin film made of polypropylene or the like can be used, and any film may be used as long as it is a thermoplastic synthetic resin film suitable for packaging. The clamping device is composed of a first clamping device 7 and a second clamping device 8 and is installed with the straight lines connecting the conveyance inlet and the conveyance outlet of the yarn package 1 facing each other. Here, the roll-shaped film 5 is installed on the first clamp device 7 side, and the film end unwound from the roll-shaped film 5 is first passed through the first clamp device 7 and then passed through the second clamp device 8. The film 6 is stretched between the first clamping device 7 and the second clamping device 8. The first clamping device 7 and the second clamping device 8 are composed of a pair of rotatable rollers, and the pair of rollers are arranged in a direction perpendicular to the yarn package moving linear direction so as to be in contact with each other (the film 6 in between). Are arranged so that the nip is possible.

  The yarn package 1 on the tray 2 is stopped at the standby position A on the conveyance entrance side of the packaging device, and the yarn package 1 is moved to the packaging position B by the conveyor device 3 and stopped. Synchronously with the movement of the yarn package 1, the auxiliary roller 4 is also driven in the same direction to move to the packaging position B. The relative positional relationship between the yarn package 1 and the auxiliary roller 4 at the packaging position B is initially the same as the positional relationship at the standby position A at the conveyance entrance, but the auxiliary roller 4 is stretched in advance during the movement. The film 6 is brought into contact with the film 6 and then moved to the packaging position B while the film 6 is pulled out from the roll film 5.

  The yarn package 1 and the auxiliary roller 4 are stopped at the packaging position B, and the auxiliary roller 4 moves (returns) to the standby position A at the conveyance inlet. However, the tension of the film 6 is lost and the film 6 falls by its own weight. Therefore, at the same time when the auxiliary roller 4 starts moving (returning), suction is started by the film suction device 11, and a part of the film 6 is gripped by suction. A pair of film suction devices 11 are installed in the vicinity of the auxiliary roller 4 at the packaging position B with respect to the yarn package conveyance center line.

  The auxiliary roller 4 stops at the standby position A at the conveyance entrance, and the first clamping device 7 and the second clamping device 8 are driven by the cylinders 7a and 8a, respectively, in the direction perpendicular to the yarn package conveyance center line, toward the center line. Move. Simultaneously with the start of the movement, out of the pair of rollers constituting the second clamping device 8, the roller positioned on the center line side is used as a fulcrum, and the other roller rotates 180 ° clockwise around it.

  After detecting that the first clamping device 7 and the second clamping device 8 are stopped, the film welding heater 10 and the film cutting cutter 9 are driven by the cylinders 10a and 9a, and the center lines are perpendicular to the yarn package transport center line. Move towards. The film welding heaters 10 are placed between the film stretching device 12 and the packaging position B, and a pair of film welding heaters 10 are installed with respect to the yarn package transport center line. After the completion of welding, suction by the film suction device 11 is stopped. Simultaneously with the suction stop, only one film cutting cutter 9 installed between the film stretching device 12 and the film welding heater 10 is moved to the center line in a direction perpendicular to the yarn package transport center line by the cylinder 9a. Operates toward the cutting of the stretch film. Simultaneously with cutting, the roller serving as the rotation fulcrum of the pair of rollers of the second clamp device 8 is moved by the cylinder in a direction perpendicular to the center line of the yarn package so as to be separated from the other roller, and the film by the clamp device The grip 6 is once gone.

  After the film cutting is completed, the film welding heater 10 and the film cutting cutter 9 return to their original positions, and at the same time, the second clamping device 8 moves in the vertical direction toward the yarn package transport centerline, and the centerline and the first Stops at a position beyond the clamping device 7. After stopping, among the pair of rollers of the second clamping device 8, the other end of the film is rotated 180 ° clockwise with the roller serving as the rotation fulcrum as a fulcrum, so that the end of the film that has been cut first is between the pair of rollers. Put in.

  The roller serving as the rotation fulcrum is moved in a direction approaching the other roller by the cylinder, and the end of the previously cut film is sandwiched between the rollers. At the same time, the first clamping device 7 and the second clamping device 8 are The movement starts to the original position, and by this operation, a state in which the film 6 unwound from the roll-shaped film 5 is stretched through the clamp device so as to cross the straight line before the packaging position B. The packaged yarn package 1 is moved to the yarn package conveyance exit position by the conveyance conveyor device 3. A chuck device 13 (shown in FIG. 4) is provided at the yarn package conveyance outlet position to squeeze the upper film by gripping the yarn package 1, lift it to the upper part, and suck the lower film with a suction device from below. The yarn package 1 is packed.

  The yarn package was packaged using the apparatus as described above. This series of packaging operations will be described with reference to FIG. As shown in step (1) of FIG. 4, the film packaging apparatus includes a conveyer device 3 that conveys the yarn package 1 together with the tray 2, an auxiliary roller 4, a film stretching device 12, a film suction device 11, and a film cutting device. It comprises a cutter 9, a film welding heater 10, and the like. The transport conveyor device 3 is provided with a base for placing the tray 2, and the base is driven by a cylinder to linearly move from the transport inlet to the transport outlet of the packaging device. The yarn package 1 is transported to the film packaging apparatus transport entrance while riding on the tray 2, and stops at the standby position. The yarn package 1 was a bobbin having a length of 30 mm and wound in a pan shape, and the one having a winding diameter of 350 mm was used. An auxiliary roller on the base is installed at the standby position at the conveyance entrance of the film packaging machine. There are four auxiliary rollers 4, which are arranged so as to surround the outer periphery of the yarn package 1 on the tray 2, and each roller freely rotates. The film stretching device 12 includes a roll film 5, a film 6, a first clamp device 7, and a second clamp device 8. The film 6 unwound from the roll-shaped film 5 so as to cross the straight line is stretched through a clamp device in front of the packaging position in the middle of the straight line toward the transport inlet and the transport outlet of the film yarn package 1. It has been. The film used here is a polypropylene film having a thickness of 20 μm and a width of 700 mm. The clamp device is composed of a first clamp device 7 and a second clamp device 8 and is installed opposite to each other via a straight line connecting the conveyance inlet and the conveyance outlet of the yarn package. Here, the roll film 5 is installed on the first clamp device 7 side, and the film end unwound from the roll film 5 is first passed through the first clamp device 7 and then passed through the second clamp device. The film 6 is stretched between the first clamp and the second clamp. The first clamping device 7 and the second clamping device 8 are composed of a pair of freely rotating rollers, which are arranged in contact with each other in a direction perpendicular to the yarn package moving linear direction, and one of the rollers is covered with rubber. It is easy to grip the film 6.

  The detection sensor detects that the yarn package 1 on the tray 2 has stopped at the standby position at the entrance of the present packaging device, and when the packaging operation start condition is satisfied, the yarn package 1 is moved to the packaging position by the conveyor device 3. Move and stop (step (2) in FIG. 4). Synchronously with the movement of the yarn package 1, the auxiliary roller 4 is also driven by the cylinder and moves to the packaging position. The relative positional relationship between the yarn package 1 and the auxiliary roller 4 at the packaging position is the same as the positional relationship at the standby position at the conveyance entrance. The auxiliary roller 4 comes into contact with the film 6 stretched in advance during the movement, and thereafter moves to the packaging position while pulling out the film 6 from the roll film 5. Here, the auxiliary roller 4 has a role of preventing the stretch film from directly touching the yarn package 1 when the stretched film 5 is pulled out. If there is no auxiliary roller 4, the film 6 is rubbed against the yarn package 1. Fluff occurs on the surface layer of the yarn package.

  After detecting that the yarn package 1 and the auxiliary roller 4 are stopped at the packaging position, the auxiliary roller 4 moves to the standby position at the conveyance entrance (step (3) in FIG. 4), but the tension of the film 6 is lost as it is. Since the film 6 falls by its own weight, suction is started by the film suction device 11 simultaneously with the start of the movement of the auxiliary roller 4, and a part of the film 6 is gripped by suction. The suction device 11 is an ejector-type air suction device, and is installed in a pair with respect to the yarn package transport center line in the vicinity of the auxiliary roller 4 at the packaging position.

  After detecting that the auxiliary roller 4 has stopped at the standby position at the conveyance entrance, the first clamping device 7 and the second clamping device 8 are driven by the cylinder, and each of the first clamping device 7 and the second clamping device 8 is perpendicular to the yarn package conveyance center line. Move (step (4) in FIG. 4). Simultaneously with the start of the movement, of the pair of rollers constituting the second clamping device 6, a roller located on the center line side is used as a fulcrum, and the other roller rotates 180 ° clockwise around it.

  After detecting that the first clamping device 7 and the second clamping device 8 are stopped, the film welding heater 10 and the film cutting cutter 9 are driven by the cylinder, and are directed to the center line in the direction perpendicular to the yarn package 1 conveyance center line. (Step (5) in FIG. 4). The film welding heater 10 is placed between the film stretching device 12 and the packaging position, and a pair of the film welding heaters 10 is installed with respect to the yarn package 1 conveyance center line. The film welding heater 10 is an electric heater having a length of 800 mm so that the entire width of the film can be welded, and the respective heaters overlap and perform welding on the center line. After the welding is completed, the suction by the film suction device is stopped. Simultaneously with the suction stop, only one film cutting cutter 9 installed between the film stretching device and the welding heater is actuated by the cylinder toward the center line in the direction perpendicular to the yarn package transport center line. Cut the film. The film cutting cutter 9 is a cutter having a nominal length of 800 mm capable of cutting the entire width of the film, and the cutting edge has a saw blade shape. At the same time as the cutting, of the pair of rollers of the second clamp device, the roller serving as the rotation fulcrum is moved by the cylinder in a direction perpendicular to the center line of the yarn package so as to be separated from the other roller. The grip of is once gone. After the film cutting is completed, the film welding heater and the film cutting cutter return to their original positions, and at the same time, the second clamping device moves in the vertical direction toward the yarn package conveying center line, and the center line and the first clamping device are moved. It stops at the position beyond (step (6) in FIG. 4).

  After stopping, the end of the film cut first is put between the pair of rollers by rotating 180 ° clockwise with the roller serving as the rotation fulcrum among the pair of rollers of the second clamping device. The roller that serves as the rotation fulcrum is moved in a direction approaching the other roller by the cylinder, and the end of the film that has been cut first is sandwiched between the rollers. At the same time, the first clamping device and the second clamping device are As a result of this operation, the film 6 unwound from the roll film 5 is stretched through a clamping device so as to cross the straight line before the packaging position (FIG. 4). Step (7)).

  The packaged yarn package 1 is moved to the yarn package transfer exit position by the transfer conveyor device 3 (step (8) in FIG. 4). A chuck device 13 that squeezes the upper film by gripping the yarn package 1, lifts it to the upper part, and sucks the lower film with a suction device from below is installed to pack the yarn package 1.

It is a top view of the film packaging apparatus of the yarn package which concerns on one embodiment of this invention. It is a front view of the apparatus of FIG. 1 seen from the II direction of FIG. It is a side view of the apparatus of FIG. 1 seen from the III direction of FIG. It is a schematic block diagram which shows a series of operation | movement of the apparatus of FIG.

Explanation of symbols

1: Yarn Package 2: Tray 3: Conveyor Device 4: Auxiliary Roller 5: Roll Film 6: Film 7: First Clamp Device 7a, 8a: Cylinder 8: Second Clamp Device 9: Film Cutting Cutter 10: Film Welding heater 11: Film suction device 12: Film stretching device 13: Chuck device

Claims (4)

  Support means for the yarn package, conveying means for conveying the yarn package support means together with the yarn package, film stretching means for supplying the film from the roll film and stretching the supplied film, and yarn A film packaging apparatus for a yarn package comprising a welding means for welding a film surrounding a package and a cutting means for cutting the film, wherein the film is supplied from one roll film and the yarn package is packed. A film packaging apparatus for a yarn package, characterized in that the film is continuously formed with a single film.   2. A film packaging apparatus for a yarn package according to claim 1, wherein the film stretching means stretches the single film in a direction crossing the yarn package conveying path. .   The film packaging apparatus for a yarn package according to claim 1 or 2, further comprising means for sucking and holding the one sheet around the yarn package.   The yarn according to any one of claims 1 to 3, further comprising an auxiliary roller that moves together with the conveying means and supports the one film around the yarn package so as to float from the yarn package. Package film packaging equipment.

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