JPH0665887A - Calendering apparatus - Google Patents

Abstract

PURPOSE:To dispense with the attaching and detaching of a block in the exchange of a calender roll or the inspection of ancillary apparatuses by providing an operation indicator for displaying the position of a rod of a hydraulic cylinder and actuating the hydraulic cylinder and a block-transfer mechanism. CONSTITUTION:The objective apparatus is provided with an operation indicator 19 to display the position of a rod 11 of a pair of hydraulic cylinders 4 for lifting the lower calender roll 3 and to actuate the hydraulic cylinders and a block transfer mechanism 17. The displacement of the rod is detected with a position detector 16 and the block 29 to restrict the motion of the rod is horizontally moved to two positions with the block transfer mechanism.

Description

Detailed Description of the Invention

[0001]

The present invention relates to rubber, asbestos,
This is applied to a calendar device for various webs such as paper, aluminum foil, and copper foil, when the calender rolls whose both ends are held on the machine side are replaced or when an accessory device is inspected.

[0002]

2. Description of the Related Art This type of calendar device is shown in FIG.
As shown schematically in (b), the upper calendar roll 2
Both ends of are supported by the body 1 via the arm 5,
Both ends of the lower calendar roll 3 are pivotally supported by the machine body 1 and supported by a swing arm 6 which is swung by a hydraulic cylinder 4. A block 29 is bolted to the upper end surface 10 of the casing 9 of the left and right hydraulic cylinders 4, and a receiving member 13 that also serves as a connection between the block 29 and the swing arm 6 is provided on the upper end side of the rod 11. The movement amount of the rod 11 is limited. When guiding the web between the calender rolls 2 and 3, the rod 11 is lowered to a position where the receiving member 13 contacts the block 29 and the calender rolls 2 and 3 are guided.
A gap of about 30 mm is formed between them. If the calender roll 3 is made to stand by in the idling state at that position and the rod 11 is raised when starting the operation, the calender roll 3 comes into contact with the upper calender roll 2. Calendar roll 2.3
When replacing the rolls or inspecting the roll surface and accessories, raise the rod 11 to bring it into contact with the upper calendar roll 2, and then remove the block 29. After that, as shown in FIG. 5B, the rod 11 is lowered to the lower limit, and a work is performed with a gap of about 100 mm provided between the calender rolls 2 and 3. When the work is completed, the rod 11 is raised again and the removed blocks 29 are attached to the casing 9. The purpose of mounting the block is to reduce the amount of movement of the rod 11 so as to make quick contact between the rolls.

[0003]

[Problems to be Solved by the Invention] Calendar Roll 2.3
When replacing the block or inspecting attached equipment, loosen and remove each block 29, and attach the block 29 again after the work is completed.
・ Replacement work and inspection work of 3 are troublesome. When performing inspection work or replacing the calender rolls 2 and 3, the rod 11 is raised from the lower limit to the upper limit at a stretch, but the rods 11 of the left and right hydraulic cylinders 4 do not always rise at the same speed. Therefore, it is difficult to bring both ends of the roll into contact with the upper calendar roll 2 at the same time. As a result, one-sided contact occurs, and the impact at that time damages the roll or breaks the web in transit.

An object of the present invention is to make it possible to carry out these operations without manually attaching and detaching the above-mentioned block each time the calendar roll is replaced or the auxiliary equipment is inspected. Another object of the present invention is to provide a calendar device that enables accurate and quick position confirmation and position adjustment of the rods of both hydraulic cylinders, and that quickly moves each rod to each predetermined position. .

[0005]

As shown in FIG. 1, the calendar device according to the present invention detects the amount of movement of the rod 11 of each hydraulic cylinder 4 in the calendar device having the above-mentioned structure. A pair of position detectors 16 that output a signal to the effect, a position display unit that displays the amount of movement of each rod 11 based on the signals input from each position detector 16, and a position orthogonal to each rod 11. And a pair of block moving mechanisms 17 that move each block 29 to a position retracted between the upper end surface 10 of the casing 9 and the receiving member 13 or between the two, and the hydraulic cylinder 4 based on an input operation. And an operation indicator 19 for activating the block moving mechanism 17 to move the rod 11 and the block 29 to predetermined positions, respectively.

The block moving mechanism 17 is composed of a cylinder 25 held by the casing 9 via a bracket 24 in a direction orthogonal to the rod 11, and a slide plate 27 connected to the tip of a rod 26 that moves in and out of the cylinder 25. Then, when the block 29 is detachably fixed to the slide plate 27, the hydraulic cylinder 4 and the block moving mechanism 17 are removed.
Can be unitized.

[0007]

By using the position detector 16, the position display means and the operation indicator 19, the rod 11 of each hydraulic cylinder 4 can be moved to each predetermined position. It can be done in various ways. After operating both block moving mechanisms 17 through the operation indicator 19 to retract each block 29 from between the upper end surface 10 of the casing 9 and the receiving member 13, the rods 11 of the left and right hydraulic cylinders 4 are moved.
To the lower limit. After the predetermined work is completed, the rods 11 of both hydraulic cylinders 4 are raised through the operation indicator 19. At that time, the block 29 may be inserted between the upper end surface 10 of the casing 9 and the receiving member 13.
The rods 11 are stopped at positions where there are gaps into which they can be inserted. Next, both block moving mechanisms 17 are operated through the operation indicator 19 to move each block 29 between the upper end surface 10 of the casing 9 and the receiving member 13, and then to a position where the receiving member 13 is received by the block 29. Each rod 11 is lowered. When the calender roll 3 is brought into contact with the upper calender roll 2, the rods 11 of both hydraulic cylinders 4 are temporarily stopped immediately before the contact, and after confirming that both rods 11 are in the same position, It is possible to raise the calender roll 3 so that both ends of the calender roll 3 come into contact with the upper calender roll 2 at the same time.

[0008]

[Effects of the Invention] The rods 1 of both hydraulic cylinders 4 are used when replacing the calender rolls 2 and 3 or inspecting attached equipment.
Since it is not necessary to attach / detach the block 29 for restricting the movement of No. 1 with bolts, roll replacement and inspection work can be performed safely and quickly. By the output of the position detector 16 and the display of the rod position, the position of the calendar roll 3 with respect to the other side can be accurately confirmed, and the left and right positions of the calendar roll 3 can be adjusted. As a result, when the calender roll 3 is brought into contact with the upper calender roll 2, partial contact does not occur, and various problems due to partial contact can be avoided. Since the movement amount of the rods 11 of both hydraulic cylinders 4 can be accurately known from the actual measurement value by the position detector 16, the left and right hydraulic cylinders 4
It is possible to confirm whether or not is operating normally and whether or not the calendar roll 3 is at a predetermined position. Therefore, it is possible to detect an equipment failure at an early stage, and it is possible to surely and easily perform these operations that were conventionally inspected by a person.

[0009]

1 to 4 show an embodiment of a calendar device according to the present invention. As shown schematically in FIG. 1, this calendar device includes a pair of calender rolls 2 and 3 which are vertically opposed to each other and held by a machine body 1, and a pair of hydraulic cylinders 4 which vertically move a lower calender roll 3 in a horizontal posture. Is equipped with. Both ends of the upper calendar roll 2 are rotatably held by an arm 5 extending from the machine body 1 as shown in FIGS. 2 and 3. The lower calender roll 3 is rotatably supported at both ends by a swing arm 6 extending from the machine body 1 as shown in FIGS. 2 and 3, and is supported by both hydraulic cylinders 4 from below. The swing arm 6 is rotatable within a certain range with a pin 7 on the body 1 side as a fulcrum.

In the hydraulic cylinder 4, the rod 11 moves in and out from the upper end surface 10 of the casing 9 by hydraulic pressure fed from a hydraulic pump (not shown). The casing 9 has its lower end connected to the machine body 1 via a pin 12, and rotates in the front-rear direction within a certain range with the pin 12 as a fulcrum. A receiving member 13 is fixed to the upper end of the rod 11, and the upper portion of the receiving member 13 is connected to the swing arm 6 via a pin 14.

In the above calendar device, a pair of position detectors 16 (manufactured by NSD Corporation: absolute position sensor), a pair of block moving mechanisms 17, and an operation indicator also serving as a position display means are provided as schematically shown in FIG. 19
(Made by NSD Corporation: Vari Limit VS-10
B) and are provided.

The position detector 16 includes a magnetic rod 20 fixed to the rod 11 side of the hydraulic cylinder 4 and a detector body 21 fixed to the casing 9, as shown in FIGS. The magnetic rod 20 is formed by continuously arranging a magnetic substance and a non-magnetic substance at equal intervals in the axial direction.
It has a length corresponding to one stroke, and the lifting plate 2
It is fixed at 2. The lifting plate 22 receives the upper end of the receiving member 13
The lower end side was extended to the outside of the casing 9. The magnetic rod 20 was arranged in the up-down direction along the inner surface of the lift plate 22, and both upper and lower ends were fixed to the inner surface side of the lift plate 22. The detector body 21 is fixed to the outer surface of the casing 9, and the magnetic rod 20 is inserted vertically.
When the magnetic rod 20 moves up and down, the rod 1
A signal indicating the movement amount of 1 is intermittently induced, and
The signal is input to the operation indicator 19.

As shown in FIGS. 1 and 2, the block moving mechanism 17 comprises a cylinder 25 on a bracket 24 fixed to the casing 9, and a slide plate 27 connected to the tip of a rod 26 that moves in and out of the cylinder 25. A block 29 made of synthetic resin is detachably provided on the slide plate 27. The bracket 24 is horizontally fixed to the inner surface of the casing 9 opposite to the position detector 16.
The cylinder 25 is an air cylinder connected to an air pump (not shown), and is fixed in a direction orthogonal to the rod 11 of the hydraulic cylinder 4. As shown in FIG. 3, the slide plate 27 has a bifurcated shape with a notch having a diameter larger than that of the rod 11 in the central portion, and both front and rear edges have an upper end surface 1 of the casing 9.
A guide plate 30 provided at 0 and a holding plate 31 fixed to the upper surface of the guide plate 30 are movably held to the left and right. The block 29 was fitted in a box 32 fixed to the upper surface of the bifurcated portion of the slide plate 27 with its upper end protruding.

The operation indicator 17 processes a signal input from the position detector 16 and displays a display unit for displaying the moving amount of the rod 11 by a numerical value and the like, a hydraulic cylinder 4 and a cylinder 25 of the block moving mechanism 19. Equipped with switches to operate. That is, about 10 between the calendar rolls 2 and 3
A lower limit of the rod 11 where a gap of 0 mm is formed, a gap of 30 mm is formed between the calendar rolls 2 and 3, and at the same time, the lower surface of the receiving member 13 comes into contact with the upper surface of the block 29. And calendar roll 2.3
A position where the block rolls in and out where a 20 mm gap is formed, a position for adjusting the left and right positions of the calendar rolls 2 and 3 just before the calendar rolls 2 and 3 come into contact with each other, and the calendar rolls 2 and 3
It has a function of displaying the upper limits of the rods 11 that the three come into contact with each other and stopping the movement of the rods 11 of both hydraulic cylinders 4 until there is an operation instruction at each position.

When the calender rolls 2 and 3 are to be replaced, the rod 11 of the hydraulic cylinder 4 is moved to the block loading / unloading position through the operation indicator 19, and then the cylinder 25 of the block moving mechanism 17 is operated. At that time, the rod 26
The block 29 on the slide plate 27 retreats from between the casing 9 and the receiving member 13 (see the phantom line in FIG. 2). Next, when the rod of each hydraulic cylinder 4 is retracted to the lower limit through the operation indicator 19, the calender roll 3 descends and 100 between the calender rolls 2 and 3.
A gap of mm is formed. After the predetermined work is completed, the rod 11 of each hydraulic cylinder 4 is raised to the block moving-in / out position through the operation indicator 19, and then each cylinder 25 of the block moving mechanism 17 is operated to move each block 29 into the casing 9 And the receiving member 13 are moved. After that, the rod 11 is lowered to the operation preparation position and the receiving member 13 is brought into contact with the upper surface of the block 29.

When the calender roll 3 is brought into contact with the upper calender roll 2, the rods 11 of the hydraulic cylinders 4 are temporarily stopped at the left / right position adjustment position of the roll immediately before contact, and the positions of the left and right rods 11 are confirmed. After that, both rods 11 are raised from that position to bring the calendar roll 3 into contact with the upper calendar roll 2.

As described above, when the calender rolls 2 and 3 are exchanged, or when the accessories are inspected, a person may loosen the bolts to remove the block 29 for restricting the movement of the rod 11 of the hydraulic cylinder 4 and remove it. Since there is no need to install it with bolts, roll replacement and inspection work can be performed safely, easily and quickly. By providing the position detector 16 and the operation indicator 19 also serving as a position display means,
Rod 11 of each hydraulic cylinder 4 and calendar roll 3
Left and right position adjustment and position confirmation can be performed. Therefore, when the calendar roll 3 is brought into contact with the upper calendar roll 2, it is possible to prevent uneven contact between the calendar rolls 2 and 3, and it is possible to avoid problems caused by uneven contact. Since the moving position of the rod 11 of each hydraulic cylinder 4 can be accurately confirmed from the output of the position detector 16, whether or not the left and right hydraulic cylinders 4 are operating normally, and whether the calendar roll 3 is at a predetermined position or not. You can check whether or not. Therefore, it is possible to detect an equipment failure at an early stage, and to reliably and easily perform these operations that were conventionally inspected by a person.

(Another embodiment) The position detector 16 is not limited to the electromagnetic pickup type, but may be another type. The cylinder 25 of the block moving mechanism 17 may be a hydraulic type. The operation indicator 19 and the position display means may be separate bodies, but if they are made common, the rod 11 of the hydraulic cylinder 4 is based on the signal input from the position detector 16.
The position of can be feedback-controlled to a predetermined position.

[Brief description of drawings]

FIG. 1 is a schematic front view of a calendar device.

FIG. 2 is a partially cutaway front view of a main part.

FIG. 3 is a side view of a main part.

FIG. 4 is a perspective view of a main part.

FIG. 5 is a schematic explanatory view of a conventional calendar device.

[Explanation of symbols]

 1 Aircraft 2 Calendar roll 3 Calendar roll 4 Hydraulic cylinder 9 Casing 10 Upper end surface 11 Rod 13 Receiving member 16 Position detector 17 Block moving mechanism 19 Operation indicator 24 Bracket 25 Cylinder 26 Rod 27 Slide plate

Claims (2)

[Claims] 1. A pair of calender rolls 2 and 3, which are vertically opposed to each other and held on the side of the machine body 1, and both end portions of a lower calender roll 3 are supported from below, and the calender roll 3 is supported.
A pair of hydraulic cylinders 4 for moving the upper and lower calender rolls 2 toward and away from each other, and an upper end surface 1 of a casing 9 of each hydraulic cylinder 4.
0 and a receiving member 13 provided on the upper end side of the rod 11, a calendar device including a block 29 for preventing the rod 11 from descending at a certain position. Pair of position detectors 16 for detecting the movement amount of the
And position display means for displaying the amount of movement of each rod 11 based on the signals input from the respective position detectors 16, and operating in the direction orthogonal to the rods 11 for each block 2
A pair of block moving mechanisms 17 for moving the upper and lower surfaces 9 of the casing 9 and the receiving member 13 to a position retracted from between them, a hydraulic cylinder 4 and a block moving mechanism 1 based on an input operation.
A calendar device comprising: an operating indicator 19 for activating 7 to move the rod 11 and the block 29 to predetermined positions. 2. The block moving mechanism 17 comprises a bracket 2
A cylinder 25 held in the casing 9 via 4;
And a slide plate 27 connected to the tip of a rod 26 that moves in and out of the cylinder 25.
The calendar device according to claim 1, wherein the block 29 is detachably fixed.