JPH0214094A - Calendaring unit - Google Patents

Abstract

PURPOSE:To provide a calendaring unit so designed that a left-and-right pair of press cylinders for respectively pressing the uppermost one pair of bearing boxes among them and plural pairs of detachable cylinders for vertically sliding the other plural pairs of bearing boxes separately from one another are equipped, thereby shortening the loading/unloading time for calendar rolls. CONSTITUTION:When the pressure contacts of calendar rolls 7, 5a, 5b, 5c are removed, pressing by a press cylinder 8 is also removed, each of detachable cylinders 20a, 20b and 20c being driven, and each of bearing boxes 4a, 4b and 4c is made to ascend via the corresponding each of driving shafts 21a, 21b and 21c. At this time, driving speed of each of the detachable cylinders 20a, 20b and 20c is regulated to ensure left-and-right pairs of bearing boxes 4a, 4b and 4c to be synchronously lifted, and the times for the spaces between respective circumferences of the calendar rolls 7, 5a, 5b and 5c to reach a specified length are also ensured to become similar to one another.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a calender device for smoothing the surfaces of various films, magnetic tapes, papers, and the like.

(Prior technology) Workpieces such as various films, magnetic tapes, and paper are run between multiple calender rolls whose axes are arranged in parallel, and the surfaces are smoothed by applying pressure with these calender rolls. A calendar device for this purpose has conventionally been constructed as shown in FIG. In the figure, a pair of left and right guide rails 3 are vertically fixed to a frame 2 erected on a base l. Each of these guide rails 3 supports one end of a plurality of pairs, for example, three pairs of bearing boxes 4a, 4b, and 4c so as to be slidable in the vertical direction.

Further, both ends of calender rolls 5a, 5b, and 5c are rotatably supported by three pairs of bearing boxes 4a, 4b, and 4c, respectively. Also, the lowermost calendar roll 5a
A pair of bearing boxes 6 fixed on the base 1 are installed at the bottom of the base 1.
Calendar rolls 7 are rotatably supported at both ends and are disposed parallel to the axial direction of each of the calender rolls 5. Furthermore, a pair of left and right pressure cylinders 8 fixed to the frame 2 are provided above the uppermost calender roll 5c, and the drive shafts 9 of these pressure cylinders 8 are connected to the calender rolls 5 and 7. They are driven vertically on the center line, and pressurize the uppermost pair of bearing boxes 4C, respectively. Further, the bearing boxes 4b, 4
A stopper 10, 11 is provided at the lower end of the sliding part of c.
are fixed, and the upper ends of hanging bolts 12.13 whose lower ends are fixed to the bearing housings 4a, 4b, respectively, pass through the through holes formed in these stoppers 10.11. And those hanging bolts! Nuts 14.15 are respectively screwed into predetermined positions on the upper ends of the stoppers 10.11 and 2.13, respectively, which project upward from the stoppers 10.11. Note that the code 18.17. each calendar roll 7, 5a,
This is a guide roll that guides the workpiece 19 between 5b and 5c.

In the conventional calender device configured as described above, the workpiece 19 fed from the top is guided by the guide roll 1.
8. Between calender rolls 5C and 5b, guide roll 1
7. Between calender rolls 5b and 5a, guide roll 1
6. Travels downward passing between calender rolls 5a and 7. When the calendar roll 5.7 is released from contact with the calender roll 5.7 during running, the pressurizing cylinder 8 is operated to release the drive shaft 9.
The uppermost bearing box 4c is pulled up in the direction of arrow A. At this time, each stopper 10. Top surface of 11 and nut 1
4. An appropriate gap d is formed in advance between the nut 15 and the bottom surface of the stopper 11.
The bearing box 4b is then pulled up in the same direction. Similarly, the nut 14 then comes into contact with the stopper IO, and the bearing box 4a is pulled up in the same direction. As a result, as shown in FIG. 7, the contact between the calender rolls 5 and 7 is released. Conversely, when pressing the calender rolls 5 and 7, the bearing box 4c is pushed down by the pressure cylinder 8 via the drive shaft 9, and the calender rolls 5c and 5b are pressed together.

The rolls 5a and 7 are brought into contact with each other in this order, and the respective rolls 5 and 7 are brought into pressure contact with each other by the pressure of the pressure cylinder 8.

(Problems to be Solved by the Invention) However, in the conventional calender device configured as described above, when pressing each calender roll 5, 7, the pressure cylinder 8 first pushes the uppermost bearing box 4c,
Subsequently, the calender rolls 5 are successively brought into contact with each other from the top and pressed against the lowermost calender roll 7. Further, since the sliding resistance when each bearing box 4 slides while being guided by the guide rail 3 is not uniform, the spacing between the left and right ends when the calender roll 5 is pulled up is not uniform.

As a result, when the pressure cylinder 8 is pressed, the calender roll 5 comes into contact with the calendar roll 5 starting from one end, and there is a problem in that the workpiece 19 that is traveling may be cut. Further, when the contact between the calender rolls 5.7 is released, the workpiece I9 is easily cut because the calender rolls 5 and 7 are separated from one end thereof. Furthermore, there is a problem that the contact and separation of the calender rolls 5 and 7 are not performed simultaneously, but are performed sequentially from 7 to 50 and from 5c to 7, which takes time.

The present invention has been made in view of the above circumstances, and provides a calendar device that can prevent cutting of the workpiece when attaching and detaching the calender roll while the workpiece is running, and can shorten the attachment and detachment time. The purpose is to

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a plurality of pairs of bearing boxes each slidably guided in the vertical direction by a pair of left and right guide members, and In a calender device, which comprises a plurality of calender rolls each having a pair of rotatably supported ends, the calender machine performs calendering by pressurizing a workpiece running between the calender rolls. The apparatus is characterized in that a pair of left and right pressurizing cylinders that pressurize the upper pair, respectively, and a plurality of pairs of attachment/detachment cylinders that individually raise and lower the plurality of pairs of bearing boxes are provided in the main body of the apparatus.

(Function) According to the above configuration, when the calender rolls are attached or detached, the pair of left and right bearing boxes that support the respective calender rolls can be raised and lowered independently by the attachment/detachment cylinders. Therefore, by appropriately setting the drive speed and stroke of the detachable cylinder, it is possible to synchronize the lifting and lowering of the pair of left and right bearing boxes, and uniform contact between the calender rolls can be achieved. Furthermore, multiple pairs of bearing boxes can be raised and lowered at the same time, and the time required to attach and detach the calender rolls can be shortened.

(Example) Hereinafter, an example of a calendar device according to the present invention will be described with reference to the drawings.

An embodiment of the present invention is shown in FIGS. 1 to 5.

In the figures, parts that are the same or equivalent to those of the conventional example shown in FIGS. 6 and 7 are designated by the same reference numerals, and their explanations will be omitted. A feature of this embodiment is three pairs of bearing boxes 4a.

The present invention is characterized in that three pairs of detachable cylinders 20a, 20b, 20c are provided as means for raising and lowering 4b, 4c,
The configuration of other parts is similar to the conventional example. Detachable cylinder 2
0a.

Drive shafts 21a provided at 20b and 20c, respectively
.

The strokes of 21b and 21c are greater than t, 2t, and 3, respectively, where t is the interval between the outer peripheries when the calender roll 5 is removed. These drive shafts 2
The upper ends of 1a, 21b, and 21c are connected to the ends of bearing boxes 4a, 4b, and 4c, respectively, and the detachable cylinders 20a, 20b, and 20c are fixed to frame 2 at positions that do not interfere with the movement of bearing box 4. There is.

Further, the driving speeds of these detachable cylinders 20 can be adjusted independently.

Next, the operation of this embodiment will be explained. The calendering operation is similar to the conventional example. When removing the calender rolls 7, 5a, 5b, and 5c from contact while the workpiece 19 is traveling, the pressure applied by the pressure cylinder 8 is released,
Each attachment/detachment cylinder 20 is driven to raise each bearing box 4 in the direction of arrow A via the drive shaft 21. At this time, the driving speed of each removable cylinder 20a, 20b, 20c is adjusted, and the pair of left and right bearing boxes 4a, 4b.

4c are raised synchronously, and the time required for the distance between the respective outer peripheries of the calender rolls 7.5 to reach a predetermined length t is also approximately the same. That is, the drive stroke of the upper detachable cylinder 20c is made long and the drive speed is fast, and the drive stroke of the lower detachable cylinder is made short and the drive speed is slow. Also, when the calender rolls 7.5 are brought into contact with each other, the pair of left and right attachment/detachment cylinders are similarly driven in synchronization, and the pair of left and right bearing boxes 4 are lowered in synchronization, and each calender roll 5a , 5b, 5c, and 7 are brought into contact almost simultaneously. After contact, a pair of left and right pressure cylinders 8
, the pair of left and right upper bearing boxes 4C are pressed downward, and each calendar roll 5a, 5b, 5c is pressed uniformly on the left and right sides against the fixed lower calendar roll 7.

According to this embodiment, when the calender roll 5 is attached and detached, both the left and right ends can be operated in synchronization, so the contact and detachment of the calender roll 5 can be performed synchronously over the entire length, and the workpiece at this time can be Cutting of the member can be prevented.

Moreover, since the three calender rolls 5 are raised and lowered at the same time, it is possible to shorten the installation and removal time.

In the above embodiment, a case has been described in which there are a total of four calender rolls 5 and 7, but this number is not limited to four.

(Effects of the Invention) As described above in detail, the calender device according to the present invention is provided with a plurality of pairs of detachable cylinders that independently raise and lower the bearing boxes that support both ends of a plurality of calender rolls. Therefore, it is possible to easily synchronize the lifting and lowering of both the left and right ends when the calendar roll is attached and detached, and it is possible to prevent cutting of the workpiece and reduce the loss length of the product. Furthermore, since a plurality of calender rolls can be raised and lowered at the same time, it is possible to shorten the installation and removal time.

[Brief explanation of the drawing]

1 and 2 are side views showing an embodiment of the calendar device according to the present invention in the young and old states, respectively; FIGS. 3 and 4 are front views of FIGS. 1 and 2, respectively; FIG. 5 is a plan view of FIGS. 1 and 2, and FIGS. 6 and 7 are side views of the conventional calendar device, respectively, showing the timing and release state. 3... Guide rail (guiding member) 4.6... Bearing box 5.7... Calendar roll 8... Pressure cylinder 19... Workpiece member 20... Detachable cylinder Fig. 1 Figure 2 Figure 6 Figure 7 1. Display of the incident 1988 Patent Face No. 162,897
No. 2, Name of the invention Calendar German S 3, Relationship with the stone case to be amended Patent applicant Address 210 Nakanuma, Minamiashigara City, Kanagawa Prefecture Name <
520) 771' Shisha Tei Film Co., Ltd. 4, Agent 5, Date of amendment order Voluntary amendment 6 Subject of amendment Column 7 of "Detailed explanation of the invention" of the M document, Contents of the amendment 1) M-S 4th page, 6th to 7th lines, ``Shilling 8'' is corrected to ``r cylinder 8.'' 2) 18th to 19th lines, ``5c, 5b, 5a, 7J'' are corrected to ``5a, 5b, 5CJ.'' 3) Correct “upper” in line 6 of page 5 to “lower”. 4) No. 10 [10th to 14th lines r workpiece member... can be done] is changed to [cutting of the workpiece member can be prevented. Furthermore, since a plurality of calender rolls can be raised and lowered at the same time, the installation and removal time can be shortened and product loss length can be reduced. ” he corrected.

Claims (1)

[Claims] A plurality of pairs of bearing boxes each slidably guided in the vertical direction by a pair of left and right guide members, and one pair of bearing boxes facing each other.
In a calender device which is composed of a plurality of calender rolls each having both ends rotatably supported in pairs, and performs calendering by applying pressure to a workpiece running between the calender rolls, the uppermost part of the bearing box is A calendar device characterized in that a device main body is provided with a pair of left and right pressurizing cylinders that pressurize one pair, respectively, and a plurality of pairs of attachment/detachment cylinders that individually raise and lower the plurality of pairs of bearing boxes.