JP3669392B2 - Calendar facilities - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a calendar facility capable of forming a plastic sheet that has been embossed and a plastic sheet that has not been embossed.
[0002]
[Prior art]
In general, when it is desired to form irregularities such as satin (so-called embossing) on a plastic sheet molded with a calender, an embossing roll having irregularities to be molded is placed between the embossing roll and a rubber roll facing the embossing roll downstream of the calendar. A plastic sheet is passed through and the embossing roll is pressed against the rubber roll.
[0003]
FIG. 6 shows a partial side view of a calendar facility having a conventional embossing line. The resin sent to the calendar 1 forms a bank (resin pool) 22 between the No. 1 roll 19 and the No. 2 roll 20, and from there, the No. 2 roll 20 and the No. 3 roll 21. Meanwhile, the plastic sheet 2 is formed by rolling between the No. 3 roll 21 and the No. 4 roll 4. The plastic sheet 2 is separated from the No. 4 roll 4 by the take-off roll 3, passed between the embossing roll 5 and the rubber roll 6 and embossed, and then the plastic sheet 2 is gradually cooled by the tempering roll 7. Then, it is wound up by a winder (not shown). The embossing roll 5 is fixed to the rear surface of the housing 23 of the calendar 1, and is connected to and supported by an embossing roll lifting cylinder 24 that lifts and lowers the embossing roll 5 in the vertical direction. The rubber roll 6 is mounted on a rubber roll support carriage 25, and the rubber roll support carriage 25 can move and move in the axial direction of the rubber roll 6 on a rail 26 provided on the floor surface. The take-off roll 3 and the tempering roll 7 are supported by a support device (not shown).
[0004]
Further, when a plastic sheet that is not subjected to embossing, such as a transparent film, is formed with the calendar equipment, first, the embossing roll 5 is raised to a predetermined position by the embossing roll lifting cylinder 24 and retracted from the line. Next, the rubber roll support carriage 25 is moved in the axial direction of the rubber roll 6 to retract the rubber roll 6 from the line. The rubber roll 6 is replaced with an iron plain roll (not shown), or paper is wound around the rubber roll 6 and then returned to the line again. At this time, the plastic sheet 2 passes under the replaced roll.
[0005]
In addition, when switching to molding a plastic sheet to be embossed from a plastic sheet not subjected to embossing, first, the rubber roll support carriage 25 is moved, the plain roll or the rubber roll wrapped with paper is retracted from the line, and the rubber roll Replace or remove the paper, and then return to the line again. At this time, the plastic sheet 2 passes over the rubber roll 6. Next, the embossing roll 5 is lowered to a predetermined position by the embossing roll lifting cylinder 24 and returned to the line.
[0006]
[Problems to be solved by the invention]
However, in the calendar equipment described above, the rubber roll must be replaced several times to several tens of times a day in order to form a plastic sheet that is embossed and a plastic sheet that is not embossed. It took a long time to load the plain roll or wrap the paper around the rubber roll, and the work efficiency was poor. Also, since the diameter of plain rolls and rubber rolls is larger than that of take-off rolls and tempering rolls, the length of the plastic sheet in the running direction is longer, and air can easily enter between the plastic sheet and the roll. The sheet hangs down. In addition, when paper is wound around the rubber roll, the temperature of the plastic sheet cannot be controlled. Therefore, the product accuracy of the plastic sheet is lowered, and uniform product accuracy cannot be maintained. Further, if the rubber roll is retracted from the line and operated without being replaced, there is a problem that the distance between the take-off roll and the tempering roll becomes long and the plastic sheet is wrinkled.
[0007]
The present invention has been made to solve the above-described problems. That is, it is possible to switch quickly and smoothly between the case of molding a plastic sheet to be embossed and the case of molding a plastic sheet that is not to be embossed, and to further improve the product accuracy of the plastic sheet. The purpose is to provide equipment.
[0008]
[Means for Solving the Problems]
According to the present invention, a plastic sheet molded by a calendar is pulled away from the calendar roll by a take-off roll, the plastic sheet is passed between an embossing roll and a rubber roll, embossed, and the plastic sheet is tempered by a tempering roll. In a calendar facility having a line to be cooled, the embossing roll is lifted and lowered from the line, or an embossing roll lifting device for returning to the line and the rubber roll is moved in the axial direction to be retracted from the line. Alternatively, the rubber roll slide device that returns to the line, the final take-off roll lifting device that lifts and lowers the final take-off roll of the take-off roll from the line, or returns the line to the line, and the tempering roll. Is close to the take-off roll on down or the tempering roll moving apparatus of separating, the calendar facility being provided, characterized in that it comprises a tempering roll height adjusting device for adjusting the height of the tempering rolls and.
[0009]
According to the embodiment of the present invention, the tempering roll moving device includes a cart on which the tempering roll is mounted, a projecting portion projecting from the lower surface of the cart, a tip connected to the projecting portion, and a lower surface of the floor. It is preferable that it consists of a cylinder fixed to.
[0010]
Further, according to an embodiment of the present invention, the tempering roll height adjusting device is rotatably provided on the carriage, and supports a tempering roll support plate that rotatably supports a shaft of the tempering roll, and the tempering roll support. It is preferable to comprise a rotating cylinder that rotates the plate about the axis of the final tempering roll.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to FIGS. In addition, in each figure, the same code | symbol is attached | subjected and demonstrated to the part which is common in the past.
[0012]
FIG. 1 is a partial side view of a calendar facility having an embossing line according to the present invention, and shows a case where embossing is performed. The calendar equipment shown in the figure includes an embossing roll raising / lowering cylinder 8 that lifts and lowers the embossing roll 5 from the line or returns to the line, and moves the rubber roll 6 in the axial direction to retract the rubber roll 6 from the line. The rubber roll slide device 9 for returning to the normal position, the final take-off roll 3s of the take-off roll 3 to be lifted and retracted from the line, or the final take-off roll lifting cylinder 10 for returning to the line, and the tempering roll 7 to the take-off roll 3 on the line A tempering roll moving device 11 that approaches or separates, and a tempering roll height adjusting device 12 that adjusts the height of the tempering roll 7 to the height of the take-off roll 3 on the line or leveles it. It is.
[0013]
The embossing roll raising / lowering cylinder 8 is fixed to the rear surface of the housing 23 of the calendar 1 and raises and lowers the embossing roll 5 in the vertical direction. The final take-off roll raising / lowering cylinder 10 is fixed to the inner surface of the housing 23 of the calendar 1 so as to raise and lower the final take-off roll 3s in the vertical direction.
[0014]
The rubber roll slide device 9 comprises a rubber roll support carriage 27 that supports the rubber roll 6 and a rail 28 on which the rubber roll support carriage 27 is placed, and the rubber roll support carriage 27 is powered by human power, a cylinder, etc. 28 is moved in the axial direction of the rubber roll 6.
[0015]
The tempering roll moving device 11 includes a tempering roll moving carriage 13 on which the tempering roll 7 is mounted, a protruding part 14 protruding from the lower surface of the tempering roll moving carriage 13, a tip connected to the protruding part 14 and a floor surface. 15 and a cylinder 16 fixed below. Then, the tempering roll moving carriage 13 is moved in the horizontal direction by expanding and contracting the cylinder 16 so that the tempering roll 7 is brought close to or separated from the take-off roll 3 on the line.
[0016]
The tempering roll height adjusting device 12 includes a tempering roll support plate 17 that rotatably supports the shaft of the tempering roll 7, a rotating cylinder 18 connected to the tempering roll support plate 17, and a tempering roll support plate 17. The bracket 29 is rotatably supported. Although not shown, a protrusion is provided outside the tempering roll support plate 17 so as to be concentric with the shaft of the final tempering roll 7s, and the protrusion is rotatably supported by the bracket 29. The tempering roll support plate 17 is rotated about the axis of the final tempering roll 7 s by the expansion and contraction of the rotating cylinder 18 to adjust the height of the tempering roll 7. The rotating cylinder 18 is fixed to the inner surface of the side plate 30 of the tempering roll moving carriage 13.
[0017]
FIGS. 2 to 5 are diagrams showing an operation to switch from molding a plastic sheet to be embossed to molding a plastic sheet not to be embossed, such as a transparent film, by the calendar facility of the present invention described above. is there. Hereinafter, description will be given with reference to the drawings as appropriate.
(1) First, as shown in FIG. 2, the embossing roll lifting cylinder 8 raises the embossing roll 5 upward in the vertical direction and retracts it from the line.
(2) Subsequently, as shown in FIG. 3, the rubber roll support carriage 27 is moved in the axial direction (in the figure, the direction from the front to the back of the paper) to retract the rubber roll 6 from the line. In the figure, the retracted state is indicated by a broken line.
(3) Next, as shown in FIG. 4, the final take-off roll lifting cylinder 10 lowers the final take-off roll 3s downward in the vertical direction and retracts it from the line.
(4) Finally, as shown in FIG. 5, the tempering roll moving carriage 13 is moved to bring the tempering roll 7 closer to the take-off roll 3 on the line, and the tempering roll support plate 17 is rotated by the rotating cylinder 18. Then, the height of the tempering roll 7 is adjusted to the height of the take-off roll 3 on the line.
[0018]
Further, when switching from molding a plastic sheet not subjected to embossing to molding a plastic sheet subjected to embossing, the following operation is performed. The illustration is omitted.
(1) The tempering roll moving carriage 13 is moved to make the tempering roll 7 horizontal while moving the tempering roll 7 away from the take-off roll 3 on the line.
(2) Almost simultaneously with the operation of (1), the final take-off roll 3s is raised upward in the vertical direction to return to the line.
(3) The rubber roll support carriage 27 is moved to return the rubber roll 6 to the line.
(4) The embossing roll 5 is lowered downward in the vertical direction and returned to the line.
[0019]
Therefore, according to the calendar equipment of the present invention described above, the rubber roll 5 can be replaced when switching between the case of molding a plastic sheet to be embossed and the case of molding a plastic sheet not to be embossed. The plastic sheet 2 can be passed from the take-off roll 3 to the tempering roll 7 quickly and smoothly.
[0020]
In addition, this invention is not limited to embodiment mentioned above, Of course, it can change variously in the range which does not deviate from the summary of this invention.
[0021]
【The invention's effect】
As described above, according to the calendar facility of the present invention, since it is possible to omit the replacement work of the rubber roll which was the main cause of work delay, when molding a plastic sheet to be embossed quickly and smoothly, It is possible to switch between molding a plastic sheet that is not embossed. Further, since the plastic sheet is directly passed from the take-off roll to the tempering roll, the length of the plastic sheet in the traveling direction does not increase and the plastic sheet does not hang downward. Moreover, since the tempering roll is brought close to the take-off roll, the plastic sheet is not wrinkled. Therefore, it has an excellent effect that the product accuracy of the plastic sheet can be improved.
[Brief description of the drawings]
FIG. 1 is a partial side view of a calendar facility having an embossing line according to the present invention, showing a case where embossing is performed.
FIG. 2 is a view when the embossing roll is retracted from the line.
FIG. 3 is a view when the rubber roll is retracted from the line.
FIG. 4 is a diagram when the final take-off roll is retracted from the line.
FIG. 5 is a diagram when the tempering roll is brought close to the take-off roll on the line, and when the height of the tempering roll is adjusted to the height of the take-off roll on the line.
FIG. 6 is a partial side view of a calendar facility having a conventional embossing line.
[Explanation of symbols]
1 Calendar 2 Plastic sheet 3 Take-off roll 3s Final take-off roll 4 Calendar roll (No. 4 roll)
5 Embossing roll 6 Rubber roll 7 Tempering roll 7s Final tempering roll 8 Embossing roll lifting cylinder (embossing roll lifting device)
9 Rubber roll slide device 10 Final take-off roll lifting cylinder (final take-off roll lifting device)
11 Tempering roll moving device 12 Tempering roll height adjusting device 13 Tempering roll moving carriage 14 Protruding part 15 Floor surface 16 Cylinder 17 Tempering roll support plate 18 Rotating cylinder 19 No.1 roll 20 No.2 roll 21 No.3 roll 22 Bank 23 Housing 24 Embossing roll lifting cylinder 25 Rubber roll support carriage 26 Rail 27 Rubber roll support carriage 28 Rail 29 Bracket 30 Side plate

Claims (3)

A calender having a line in which a plastic sheet formed by a calender is separated from the calender roll by a take-off roll, the plastic sheet is passed between an embossing roll and a rubber roll, embossed, and the plastic sheet is cooled by a tempering roll. In equipment,
An embossing roll lifting device that lifts and lowers the embossing roll to retract from the line, or returns to the line;
A rubber roll slide device that moves the rubber roll in the axial direction thereof, retracts from the line, or returns to the line;
A final take-off roll lifting device that lifts and lowers the final take-off roll of the take-off roll to retreat from the line, or to return to the line;
A tempering roll moving device for bringing the tempering roll closer to or away from the take-off roll on the line;
A calender facility comprising a tempering roll height adjusting device for adjusting the height of the tempering roll. The tempering roll moving device comprises: a carriage on which the tempering roll is mounted; a protrusion protruding from the lower surface of the carriage; and a cylinder having a tip connected to the protrusion and fixed below the floor surface. Item 1. Calendar equipment according to item 1. The tempering roll height adjusting device is rotatably provided on the carriage, and supports a tempering roll support plate that rotatably supports a tempering roll shaft, and the tempering roll support plate is rotated about the axis of the final tempering roll. The calendar equipment according to claim 2, comprising a rotating cylinder to be moved.

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