JPH078351U - Film cutting and winding device for film winder - Google Patents

Abstract

(57) [Summary] [Purpose] Make sure that the cut end of the film is firmly attached to the air core.
Eliminates wrinkles and folds, and enables proper cutting and winding around empty cores. [Structure] A first touch roller arm 4 having a first touch roller 3 rotatably mounted is rotatably disposed above a winding position upstream of a turret board 1 of a multi-axis turret type winder. The second touch roller arm 7 having the second touch roller 6 rotatably mounted is rotatably disposed below the winding position downstream, and the cutting device 12 cuts the film f with the empty winding core C as the anvil. Installed as possible and the first
This is a film cutting and winding device in a film winding machine in which an electrode 9 of an electrostatic charge imparting device is rotatably arranged in the vicinity of the touch roller 3 so as to face the first touch roller.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention swivels the turret board of the multi-axis turret type winder to replace the take-up roll at the take-up position and the empty core to cut the running film, and wind the cut end to the empty core. This relates to a film cutting and winding device for a multi-axis turret film winder to be attached.

[0002]

[Prior art]

 Conventionally, when winding a film with a multi-axis turret type winder, at the time of rewinding, an electrostatic charge is applied to the cut end of the film without giving adhesive force to the core with an adhesive tape, etc. Various devices for winding the wire have been proposed in JP-A-62-285857, JP-A-64-43438, JP-A-1-167144, and JP-B-11-1249.

[0003]

[Problems to be solved by the device]

 However, in each of the above-mentioned conventional proposals, since the part of the film running and running between the empty core and the full roll is cut by the guillotine cutter or traverse cutter, the film is cut. The cutting tip protrudes from the peripheral surface of the empty core, and the adhesion force due to the electrostatic charge applied to the film does not bend the protruding part along the peripheral surface of the core and is not enough to wind it. The air nozzle or film guide is also used together.

The present invention addresses the above-mentioned situation, and in particular, by focusing on the treatment of the film cutting tip, the object is to enable cutting and winding to a new winding core correctly without defects of wrinkles and bending. To do.

[0005]

[Means for Solving the Problems]

 Therefore, the feature of the present invention which meets the above-mentioned object is that in the multi-axis turret type winder, the tip of the empty core and the winding roll at the time of winding are connected to the upstream side of the winding position of the turret board. A first touch roller arm rotatably mounted with a corresponding first touch roller is rotatably arranged with its base part as a rotation center, and on the other hand, at the lower end on the downstream side of the winding position, the tip is contacted with a full roll. The second touch roller arm rotatably mounted with the second touch roller is rotatably arranged with its base as the center of rotation, and the cutting device travels with the empty core as the anvil and the empty core being held. The first touch roller is installed so that it can be cut with respect to the existing film, and the first touch roller is in contact with the empty core in the vicinity of the first touch roller, and immediately before cutting and rewinding by the cutting device. Can face La There electrodes as electrostatic charging device film cut in the film winder was allowed disposed so as to be rotatable by the rotating arm, the configuration of the winding apparatus.

[0006]

[Action]

 When the above-mentioned device of the present invention is used, the touch roller is wrapped around the peripheral surface of the first touch roller, which is in pressure contact with the empty core at the upstream side of the empty core at the winding position of the turret board, and the empty roll is further wound. The core is embraced to form a traveling path of the film that reaches the fully wound roll that has moved to the take-out position, and an electrostatic charge is applied to the traveling film on the upstream side of the empty winding core and on the first touch roller. Send the film to the fully wound roll while keeping the film in close contact with the core wrapping part.

[0007] In the running state, the cutting device (blade) travels with the empty core as an anvil in a direction orthogonal to the film running direction at the empty core enclosing portion to cut the film. Since it is attached to the empty core by the adhesion force of the electric charge, no glue is required, and it is possible to cut and wind on a new core without the drawback of wrinkles and bending.

[0008]

【Example】

 An embodiment of the device of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an embodiment in which the present invention is applied to a four-axis turret type winding machine. In the figure, reference numeral 1 is a turret board, a central shaft 2 of which is axially supported by a machine frame (not shown), and an appropriate drive source is provided. With the introduction of power, it rotates counterclockwise by 1/4 turn, moves the roll that has been fully wound at the winding position C-1 to the take-out position C-2, and moves the empty core C to the winding position C. It is supposed to be carried to -1.

In the figure, reference numeral 4 denotes a first touch roller arm, which is located on the upstream side of the winding position C-1 and has the first touch roller 3 rotatably mounted at its tip, usually the lower end, The base 5 of the arm 4 is pivotally supported by a machine frame (not shown) so that it can be appropriately swung by an actuator (not shown), and the first touch roller 3 is at the winding position C-2. The empty core C can be contacted and released.

Reference numeral 7 denotes a second touch roller arm, which is rotatably attached to the tip of the take-up position downstream of the take-up position and upstream of the take-out position, usually the upper end of the second touch roller 6. The frame base 8 is rotatably attached to a machine frame (not shown), and the second touch roller arm 7 is appropriately rocked and rotated by an actuator (not shown) to fully wind the roll R at the take-out position C-2. The second touch roller 6 is brought into contact with and released from the.

In the above structure, the base 5 which is the center of rotation of the first touch roller arm 4 is positioned above the film winding path upstream with respect to the empty core C at the winding position C-1. When the first touch roller 3 comes into contact with the idle core C, the first touch roller arm 4 suspended from the base portion 5 becomes substantially vertical, and the first touch roller 3 moves toward the idle core C. It is arranged so as to take a relational position such that it is located substantially on the side.

On the other hand, the base portion 8 serving as the center of rotation of the second touch roller arm 7 is located below the empty winding core C at the winding position C-1, and the second touch roller arm 7 is located from that position. When the second touch roller 6 mounted on the tip thereof comes into contact with the fully wound roll R located at the take-out position C-2, the film f causes the inclined bottom surface of the peripheral surface of the empty core C to rotate. It is arranged so as to be in a relational position so as to embrace a range of about 90 °.

Reference numeral 9 denotes an electrode of the electrostatic charge imparting device arranged on the side of the first touch roller 3 of the above device, which is attached to the tip of the rotating arm 10 with the fulcrum 11 in the drawing as the center of rotation. , Connected to a high voltage power supply (not shown). Then, normally, it is evacuated to the position 9 ′ shown by the chain line in the figure to avoid interference with the first touch roller 3, but the first touch roller 3 comes into contact with the empty core C and immediately before cutting and rewinding. Then, it is rotated downward to the position 9 indicated by the solid line, its electrodes are opposed to the first touch roller 3, and electrostatic charges are applied to the traveling film f on the first touch roller 3 on the upstream side of the idle core. Then, the film is fed to the fully wound roll R while the film is brought into close contact with the empty core holding portion.

Reference numeral 12 in the drawing is a cutting device, the structure of which is a known structure, and therefore details thereof will be omitted, but the cutting blade is fixed to a reciprocating tool post, and an actuator appropriately extends over a large width of the film. The structure is such that it reciprocates and the device as a whole is raised and lowered diagonally between positions 12 and 12 'shown in the figure. Then, when the cutting blade is traversed in the raised position, the cutting blade normally traverses as an anvil with an empty core C made of a paper tube, wraps the empty core C, and runs while holding the film in close contact with the embracing part. Cut the film f.

Thus, with the device of the present invention as described above, the turret is swung, the first touch roller is brought into contact with the empty core, the winding is performed, the second touch roller is brought into contact with the full roll, and the electrode is rotated downward. The winding operation is repeated where the winding device is raised, the electrode is energized, and the cutting blade is traversed. During this time, the film that runs while making the film adhere to the empty core wrapping part by applying electrostatic charge is cut with the anvil as the core, and the film is stuck to the empty core without sticking out the cut end of the film. Prevent the occurrence of.

[0017]

[Effect of device]

 As described above, the device of the present invention has the first touch roller arm having the first touch roller at the tip on the upstream side of the winding device for the turret board, and the second touch roller arm having the second touch roller at the tip on the downstream side. Each of the touch roller arms is rotatably provided, a cutting device is provided so that the empty winding core in the winding position can be used as an anvil for cutting, and an electrostatic charge imparting device is provided on the side of the first touch roller. On the upstream side of the winding core, the touch roller is held by the film along the peripheral surface of the first touch roller that is in pressure contact with the empty winding core, and the empty winding core is further held so that the traveling path of the film reaches the full roll. A static charge is applied to the running film on the upstream side of the empty core, on the touch roller, and the film is cut at the location where the empty core is held to cut the film with the empty core as an arvil, which is orthogonal to the running direction of the film. Irum cutting tip The adhesion force due to the electrostatic charge ensures that it adheres firmly to and adheres to the empty core, eliminating the drawbacks of wrinkles and bending that were previously inadequate, and cutting and winding onto a new empty core correctly. Can be done.

[Brief description of drawings]

FIG. 1 is a schematic side view of a main part according to an embodiment in which the present invention is applied to a four-axis turret type winder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Turret board 3 1st touch roller 4 1st touch roller arm 5 1st touch roller arm base 6 2nd touch roller 7 2nd touch roller arm 8 2nd touch roller arm base 9 Electrode 10 of electrostatic charging device 10 Rotating arm 12 Cutting device f Film C Empty core R Full winding roll C-1 Winding position C-2 Unwinding position

Claims (1)

[Scope of utility model registration request] 1. In a multi-axis turret type winder, an empty core and a first touch roller for contacting a winding roll at the time of winding are rotatably mounted on the upstream side of the winding position of the turret board. The first touch roller arm is rotatably arranged with its base as a center of rotation, while the second touch roller, which is in contact with a full-roll roll, is rotatably attached to the lower end on the downstream side of the winding position. The second touch roller arm is rotatably arranged with its base as a rotation center, and the cutting device is installed so as to be able to cut the film running while holding the empty core with the empty core as an anvil. And the first touch roller is in contact with an empty core in the vicinity of the first touch roller,
In the film winding machine, the electrode of the electrostatic charge imparting device is rotatably arranged by a rotating arm so as to face the first touch roller immediately before cutting and rewinding by the cutting device. Film cutting and winding device.