JPH07292565A - Method for pressurizing in cloth pressing roll device and device therefor - Google Patents

Abstract

PURPOSE:To provide a method for pressurizing in a cloth pressing device capable of bringing a receiving roll into contact with a pressurizing roll under uniform pressure along the whole length of both the rolls and carrying out pressing treatment of the cloth uniformly in the whole length in the axial direction. CONSTITUTION:Pressurizing action of a pressurizing roll 3 during pressing treatment is carried out by two stages. A distance L from a beam sensor 11 arranged at a side opposite to the pressurizing action direction of the pressurizing roll at both sides in the axial direction to the pressurizing roll 3 in a nipped state of the pressurizing roll 3 opposed to a receiving roller is measured. Based on the measured value, the waiting position of the pressurizing roll 3 having a slight gap (s) uniform in the axial direction is set. The pressurizing roll 3 is operated to the waiting position having the slight gap (s) and held with a waiting retention means by a pressurizing action at the first stage and the pressurizing roll 3 is brought into contact with the receiving roll 1 under pressure and 4 cloth F is nipped under prescribed pressure by a pressurizing action at the second stage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is mainly used for dyeing fabrics,
The present invention relates to a pressing method and a device for a cloth squeezing roll device used for squeezing liquid such as mangle and padder in a finishing process.

[0002]

2. Description of the Related Art For example, when pretreating an industrially produced long fabric, dyeing treatment, etc., it is necessary to impregnate a long fabric to be treated with an appropriate treatment liquid.

As a general application means for impregnating the cloth to be treated with the treatment liquid, for example, the cloth to be treated is immersed in a bath containing the treatment liquid in a spread state, and then a squeezing roll device consisting of a pair of rolls. A means for continuously applying the treatment liquid such as mangle and padder is adopted so that the liquid content is continuously adjusted.

A conventional squeezing roll device used for squeezing a liquid-containing cloth and adjusting the liquid content in such a means for continuously applying a treatment liquid has, for example, a structure as shown in FIGS. 4 and 5. It is a thing.

The conventional example will be described below (5
1) is a receiving roll such as a rubber roll rotatably supported on the frame (52), and (53) is a pressure roll arranged in parallel with the receiving roll (51). Pressure roll (53)
Are rotatably supported by bearings (53a) on the upper ends of a pair of left and right movable arms (55) that are swingably supported in the front-back direction by a support shaft (54) parallel to the roll axis direction. The pressure roll (53) is received between the lower ends of the left and right movable arms (55) and the fixed plate (60), respectively.
An air cylinder, an air spring (air diaphragm), or the like that can be elastically pressed is provided as the pressing drive means (56) to be pressed against.

Then, in order to adjust the liquid content of the cloth by such a squeezing roll device, the liquid-containing cloth (F) to be treated is placed between the pressure roll (53) and the receiving roll (51). By supplying pressurized air into the pressing drive means (56) while feeding the pressure roller (53) through the movable arm (55), the pressure roller (53) is received to the roll (51) side. The liquid is transferred and pressed against the receiving roll (51) with an appropriate pressure, whereby the liquid-containing cloth (F) is nipped and squeezed.

[0007]

However, in the above-mentioned diaphragm roll device, the pressure roll (53) is pressed from the open state via the movable arm (55) by the pressing force of the pressing drive means (56). In the operation process of shifting to the state (nip state), the resistance between the movable portion and the non-movable portion, the fluctuation of the air pressure supplied into the left and right pressing drive means (56), and the pressure applied in parallel. Due to an error in parallelism between the roll (53) and the receiving roll (51), etc., the receiving roll (51) of the pressure roll (53)
The pressure contact force (pressure force at the nip) against the cloth becomes non-uniform in the axial direction, and as a result, the amount of squeezed liquid becomes uneven in the width direction of the liquid-containing cloth that is continuously fed, and the entire surface of the cloth becomes uniform. There was a problem that it could not be processed.

That is, in the conventional squeeze roll device, the cloth tends to be unevenly squeezed, and particularly in the case of a wide cloth having a width of 1800 mm, the liquid content applied in the width direction becomes uneven. It was easy to obtain, and it was difficult to obtain a high-quality treated fabric without uneven treatment.

The present invention has been made in view of the above problems, and an object thereof is a cloth squeezing roll device used for a mangle, a padder or the like, and an entire length in the axial direction with respect to a pressure receiving roll. It is an object of the present invention to provide a pressurizing method capable of uniformly press-contacting over the entire surface and uniformly and favorably performing the squeezing treatment of the cloth, and an apparatus therefor.

[0010]

SUMMARY OF THE INVENTION The present invention comprises a receiving roll arranged in parallel, a pressure roll which can be pressed against the receiving roll, and a pressing drive means for pressing the pressure roll against the receiving roll. In a squeeze roll device that nips and squeezes a fabric that is fed between both rolls by a pressure contact action of a pressure roll, as a pressing method for pressing the pressure roll against the roll, in order to solve the above problems The pressurizing operation of the pressurizing roll is performed in two steps, and by the pressurizing operation of the first step, the rollers are preliminarily adjusted so as to form a uniform small gap in the axial direction and pressurize to a preset standby position. It is characterized in that the roll is operated and held, and the pressure roll is received and brought into pressure contact with the roll in the second-stage pressure operation from the standby position.

In the pressing method for the squeeze roll device, the distance from the opposite side of the pressing operation direction to the pressing roll is measured at both axial ends of the pressing roll. A beam sensor is provided, and a predetermined small gap is held between the two rolls based on the measured values of the two beam sensors in the nip state in which the pressure roll is brought into contact with the roll in advance. It is preferable to adjust and set the standby position of the pressure roll.

According to a third aspect of the present invention, there is provided a squeezing roll device suitable for carrying out the above method, wherein the pressing roll is applied to both ends of the pressing roll in the axial direction from the side opposite to the pressing operation direction. Based on the measured values of the beam sensor arranged to measure the distance to the pressure roll and the beam sensor in the nip state in which the pressure roll is brought into contact with the roll, a predetermined value is set between the rolls. Standby position setting means for adjusting and setting the standby position of the pressure roll having a small gap,
It is controlled to operate in response to the drive of the pressing drive means,
During the first-stage pressurizing operation of the pressure roll by the pressing drive means, the pressing roll is temporarily held at the standby position set by the standby position setting means, and then the holding is released and the pressing drive means is used. Standby holding means for performing the second stage pressurizing operation.

[0013]

According to the pressurizing method of the present invention, the pressurizing roll is temporarily held in the standby position having a preset small axially uniform gap by the pressurizing operation in the first stage. In the second-stage pressurizing operation, the pressure fluctuation of the pressing drive means and the movable portion are performed because the second-stage pressurizing operation presses the receiving roll with a very slight pressurizing operation from the standby position. The pressure contact force with respect to the receiving roll and the pressing force applied to the nipped cloth are uniform over the entire length in the axial direction without being substantially affected by the resistance between the non-movable part and the non-movable part.

In particular, according to the second aspect of the present invention, for each of both axial end portions of the pressure roll, a predetermined small amount is set on the basis of the distance to the pressure roll in the nip state measured by the beam sensor. When setting the standby position with a gap, it is easy to adjust and set the standby position of the pressure roll by the pressing operation in the first step, and also to correct the error caused by roll surface abrasion. It is easy, and it is possible to maintain a uniform small gap over the entire length in the axial direction. Therefore, the pressure contact action of the pressure roll by the operation from the standby position having a small gap becomes more uniform.

According to the squeeze roll device of claim 3,
For each axial end of the pressure roll, the distance to the pressure roll in the nip state is measured by the beam sensors placed at both ends of the pressure roll, and a predetermined small gap is held based on the measured value. Set the standby position of the pressure roll.

When the cloth is squeezed, the pressing roller is driven by the pressing drive means. When the pressing roller reaches the standby position by the first pressing operation. The pressure holding roll is temporarily held at the standby position by the standby holding means that operates corresponding to the pressing drive means. Next, when squeezing the cloth, the holding by the standby holding means is released, and the pressing operation by the pressing drive means, that is, the second-stage pressing operation from the standby position is performed. The receiving roll is pressed against the roll at a predetermined pressure to nip the cloth.

As a result, the pressurizing operation for receiving the pressurizing roll and bringing it into pressure contact with the roll is performed from an open state to a standby position having a small gap, and a very slight operation from the standby position to the press contacting state. This can be performed in a stepwise operation, and as described above, a uniform pressure contact force can always be obtained.

[0018]

Embodiments of the present invention will be described in detail below with reference to FIGS. 1, 2 and 3.

In the figure, (1) is a receiving roll made of a rubber roll or the like, which is a bearing (1) fixed to a frame (2).
It is rotatably supported in place by a).
(3) is a pressure roll arranged in parallel with the receiving roll (1), and is rotatably supported by the upper ends of a pair of left and right pressure levers (5) via bearings (3a).

The pressure lever (5) is provided so as to be swingable back and forth by a support shaft (4) parallel to the roll axis direction, and by this swinging, the pressure roll (3) supported at the upper end is opened. The pressurizing operation is performed from the position of the state.
Further, the lower end of the pressure lever (5) is connected to a pressing drive means (6) composed of an air spring (air diaphragm) or an air cylinder, and is provided between the pressure lever and the fixed portion.

The pressing drive means (6) elastically presses the lower end of the pressure lever (5) in the direction of the arrow in FIG. 1 by supplying pressurized air to the inside thereof. As a result, the pressure roll (3) at the upper end of the pressure lever (5) is displaced toward the receiving roll (1) to perform the pressure operation. (7) in the figure is a pressure sensor that detects the pressure of the supplied pressure air, and the detected pressure value is input to the controller described later. (8) is a switching valve for the supplied pressure air, which is controlled to be opened / closed by a signal from a controller or manually.

(9) is a spring for pulling the pressure lever (5) in the direction opposite to the pressure operation direction of the pressure roll (3), and (10) is a gap adjustment in the opened state of the pressure roll (3). It is a bolt for.

In the present embodiment, the pressurizing drive means (6) uses an air spring or an air cylinder which utilizes air pressure, but the present invention is not limited to this, and for example, a screw jack or spring pressure. Can also be used, or it can be used in combination with the air spring or air cylinder. In any case, it is used so that the pressure contact force during the pressure operation can be adjusted and held constant. From the viewpoint of squeezing liquid, it is preferable that the fabric has a structure capable of pressure contact.

Reference numeral (11) is a beam sensor arranged toward the pressure roll on the side opposite to the pressure operation direction of the pressure roll (3). As shown in FIGS. 1 and 2, the beam sensor (11) has a distance (L) between the pressure roll (3) and the pressure roll (3) at both axial ends (left and right ends) of the pressure roll (3). Is arranged so that the measured values of both sensors (11) and (11) are input to a controller (12) equipped with standby position setting means, which will be described later.

The controller (12) includes left and right beam sensors (1
1) Corresponding to (11), counters (13) and (13) that change according to the displacement amount due to the pressurizing operation of the left and right ends of the pressure roll (3), and both the left and right beam sensors ( 1
1) Setting counters (14) and (14) for setting the standby position of the pressure roll (3) for each of the left and right ends based on the measured values by (11).

The setting counter (14) measures the distance (L) measured by the beam sensors (11) in the nip state in which the pressure roll (3) is received and brought into contact with the roll (1). As a reference, the standby position of the pressure roll (3) having a small gap (s) between both rolls is set.

Reference numeral (15) is a gap adjusting lever extending laterally from the pressure lever (5) and swinging in the front-rear direction about the support shaft (4) of the pressure lever (5). It is provided so as to integrally swing up and down according to the movement. Therefore, the displacement amount due to the swing of the clearance adjusting lever (15) is proportional to the displacement amount of the pressure roll (3).

Reference numeral (16) is a screw jack as a standby holding means arranged upward below the tip portion (15a) of the gap adjusting lever (15).
Of the pressure lever (5) is regulated.

The structure of the screw jack (16) is well known in the art, and a detailed description thereof will be omitted. As shown in FIG. 1, the worm housed in the casing by the driving force of the motor (17). Also, a screw shaft (18) is provided so as to be movable back and forth in the axial direction via a worm wheel. The solid line at the tip of the shaft shows the position where the pressure roll (3) is in contact with the roll (1), that is, the position in the nip state, and the chain line shows the pressure roll (3).
The position for receiving the gap adjusting lever (15) is shown so as to keep the position of the. Therefore, the vertical displacement of the screw shaft (18) is set to correspond to the displacement of the gap adjusting lever (15).

Reference numeral (19) is an encoder for detecting the amount of displacement of the screw shaft due to the rotation of the motor (17).

The screw jack (16) is controlled by a signal from the controller (12) so as to perform an operation corresponding to the drive of the pressing drive means (6), and the motor (17).
The amount of displacement of the screw shaft (18) caused by the rotation is detected by the encoder (19) and input to the controller (12), and the detected value is compared with the set value by the setting counter (14) to set the value. It stops at the position where the value is reached, that is, the screw shaft (18) is raised to the standby position and stopped.

Further, when the pressure of the pressure air by the pressure sensor (7) input to the controller (12) reaches a constant set pressure value, the screw jack (16) is activated by a signal from the controller (12). The screw shaft (18) is actuated in the opposite direction to lower the screw shaft (18) downward so that the screw shaft (18) is actuated to the nip position.

Next, the operating state when the squeezing treatment is carried out by the above-mentioned apparatus by the two-stage type roll pressurization of the present invention will be explained.

In this squeezing process, the standby position of the pressure roll (3) is set in advance as follows.

First, in the nip state where the pressure roll (3) is received against the roll (1), the left and right beam sensors (11) (11) arranged at both ends of the roll apply pressure to the sensor. The distance (L) from the roll (3) is measured, and the measured value is input to the controller (12). Controller (1
In 2), the setting counter (1
4) Adjust and set the standby position where the pressure roll (3) has a small gap (s) between the pressure roll (3) and the receiving roll (1) based on the measured value of the distance (L) by (14). To do. That is, a value obtained by subtracting the small gap (s) from the measured value (L) is set as the standby position.

For example, when the distance (L) is 100 mm and the small gap (s) at the standby position is set to 1 mm, the set values by the left and right quantity setting counters (14) (14) are set to 99.
Set to mm. The small gap (s) at the standby position is preferably 0.5 to 2.0 mm with respect to the nip position.

It is not necessary to adjust and set the standby position having such a small gap (s) every day.
It is sufficient to adjust and set it about once a week.

Thus, the liquid bath (20) containing the processing liquid
The long liquid-containing cloth (F) dipped in the paper is fed through between the receiving roll (1) and the pressure roll (3), and thus the pressure roll (3) is applied to the receiving roll (1). By performing a pressure operation, the liquid-containing cloth (F) is squeezed and the liquid content is adjusted.

At this time, first, the motor (17) is driven to raise the screw shaft (18) of the screw jack (16), and the displacement amount of the screener shaft (18) is controlled via the encoder (19). Input to the device (12), the value is compared with the set value of the standby position set by the setting counter (14), the screw jack (16) is operated until the set value is reached, and the screw shaft ( 18) rise.

Next, pressure air is supplied to the pressing drive means (6) composed of an air cylinder or the like, and the lower end of the pressure lever (5) is pressed in the direction of the arrow in the drawing by the driving of the pressing drive means (6). Swings around the support shaft (4) to move the pressure roll (3) supported at the upper end from the open position to the side facing the receiving roll (1), and the first stage preliminary Pressurizing action.

At the same time as this movement, the gap adjusting lever (15)
Simultaneously swings downward and contacts the tip of the screw shaft (18) at the standby position described above, and the pressure action due to further swing is restricted, and the pressure roll (3) moves to the standby position. And stop. That is, the pressure roll (3) and the receiving roll (1) are held in the small gap (s) set at the left and right ends as a gap at the standby position.

Here, the supply pressure of the pressure air detected by the pressure sensor (7) is input to the controller (12), and this supply pressure is squeezed from the cloth (F) in the controller (12). The standby state is maintained until the preset pressure value set as the pressure required for the processing is reached.

When the supply pressure detected by the pressure sensor (7) reaches the set pressure value, the signal from the controller (12) causes the screw jack (16) to operate in the opposite direction to the above, The screw shaft (18) is lowered to the position of the nip state, and the holding of the standby state is released. Therefore, as the screw shaft (18) moves downward, the pressure roll (3) moves to the receiving roll (1) side via the pressure lever (5) pressed by the pressing drive means (6). The liquid-impregnated cloth (F) is nipped between it and the receiving roll (1).

The pressurizing operation of the pressure roller (3) in the second stage is a slight operation from the standby position described above, and the fluctuation of the air pressure of the left and right pressing drive means (6) and the moving part The pressure contact force at the left and right ends, that is, the pressure applied to the nipped cloth is uniform in the axial direction without being affected by the frictional resistance between the non-movable part and the like. The pressing force at this time can be appropriately set by, for example, the supply pressure of the pressure air supplied to the pressing drive means (6).

When the squeezing process is stopped, the pressure air switching valve (8) supplied to the pressing drive means (6) is switched by a signal from the controller (12) to discharge the air. Then, the pressing drive means (6) is operated in the opposite direction to the above, and the pressure roll (3) is retracted to the standby position. Along with this, the screw jack (16) operates again, the screw shaft (18) rises to the standby position, supports the gap adjusting lever (15), and regulates the pressurizing operation of the pressurizing roll (3). Hold the state.

When the fabric processing is completely finished, the operation of the pressing drive means (6) is stopped and the return spring (9) restores the open state. The gap (S0 between the pressure roll (3) and the receiving roll (1) in this open state
) Is a clearance adjustment bolt (1
It is better to adjust it according to 0).

As described above, in this embodiment, the distance (L) to the pressure roll (3) in the nip state is measured by the beam sensors (11) arranged at both ends in the axial direction.
With the standby position set at each of the both ends, the screw jack (16), which is a standby holding means, is used to set the standby position at both ends of the pressure lever (5). Support the integrated gap adjustment lever (15),
Hold the pressure roll (3) that is pressure-operated in the standby position,
Further, by the second-stage pressing operation, the pressing roll (3) is pressed against the receiving roll (1) by a slight pressing operation from the standby position to nip the cloth (F), and thus the receiving roll (1) ) And the pressure roll (3) can be pressed against each other with a uniform pressure over the entire length in the axial direction, whereby uniform squeezing treatment can be performed in the width direction of the cloth.

Moreover, according to this embodiment, the adjustment and setting of the small gap at the standby position is performed before the squeezing process.
Alternatively, it can be performed at an appropriate time, and a small gap at the standby position can be maintained in a good state for a long period of time without any error in the axial direction.

[0049]

As described above, according to the pressing method of the present invention, in the cloth squeezing roll device used for the mangle, the padder, etc., the pressing operation for pressing the receiving roll against the pressing roll is performed. Since the operation is performed in the first stage up to the standby position where a uniform small gap is retained in the axial direction without pressurizing the cloth, and the operation in the second stage that is very slight from this standby position is performed, During the two-stage pressing operation, the pressure roll of the pressing drive means and the resistance of the movable part hardly influence the pressure roll, and the pressure roll can be uniformly pressed against the roll over the entire length in the axial direction, so that the cloth can be predetermined. The pressure can be surely nipped, and the squeezing treatment of the fabric can be performed uniformly over the entire surface.

Particularly, as described in claim 2, the distance to the pressure roll in the nip state is measured by the beam sensors arranged at both ends in the axial direction, and based on the measured value, a predetermined small gap is provided at each end. If the standby position is set to hold, it is easy to adjust and set the standby position, and it is easy to correct when an error occurs due to roll surface wear, and always maintain a uniform small gap in the axial direction. Therefore, the pressure roll can be uniformly pressed against the roll over the entire length in the axial direction, and the squeezing treatment of the fabric can be carried out uniformly and satisfactorily.

Further, in the case of the squeeze roll device according to the third aspect, it is easy to set and adjust the small gap at the standby position based on the measured values by the beam sensors arranged at both ends in the axial direction.
Moreover, the pressure roll can be reliably held at the standby positions set at both ends of the pressure roll, and the second-stage pressing operation after releasing the standby hold can be accurately performed. The pressurizing method by the pressurizing operation can be easily and suitably implemented.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an outline of a squeeze roll device used in an embodiment of the present invention.

FIG. 2 is a schematic plan view of a part of the above.

FIG. 3 is a schematic front view of a part of the above.

FIG. 4 is a side view showing an example of a conventional device.

FIG. 5 is a front view of the above.

[Explanation of symbols]

 (1) Receiver roll (2) Frame (3) Pressure roll (5) Pressure lever (6) Pressure drive means (7) Pressure sensor (8) Switching valve (11) Beam sensor (14) Setting counter (15) Gap adjustment lever (16) Screw jack (17) Motor (18) Screw shaft (19) Encoder (F) Fabric to be treated (S0) Gap in open state (s) Small gap at standby position

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshiyuki Masunaga 4-5-25 Kasuga-cho, Toyonaka City, Osaka Prefecture (72) Inventor Seiichiro Nakayasu 1849-54 Matsubara-cho, Hikone City, Shiga Prefecture (72) Inventor Hiroshi Ishitsuru Wakayama Prefecture 4-4-5 Usu, Wakayama City Incorporated Shanto Iron Works Co., Ltd. (72) Inventor Koji Yamato 4-4-5 Usu, Wakayama City Yamato Iron Works Co., Ltd. (72) Inventor Satoshi Mori Nagahama Shiga Prefecture 268 Horibe-cho, Ichi

Claims (3)

[Claims] 1. A receiving roll arranged in parallel, a pressure roll which can be pressed against the receiving roll, and a pressing drive means for bringing the pressure roll into pressure contact with the receiving roll. In a squeeze roll device that nips and squeezes a fabric that is fed between rolls, a pressure operation for receiving a pressure roll and bringing it into pressure contact with the roll is performed in two stages, and by the pressure action in the first stage Is adjusted in advance so that a uniform gap is formed in the axial direction, and the pressure roll is operated and held to the preset standby position.
A pressing method in a squeezing roll device for a cloth, characterized in that a pressing roll is received and brought into pressure contact with the roll by a second-stage pressing operation from the standby position. 2. A beam sensor for measuring the distance from the opposite side of the pressure operation direction to the pressure roll is provided at both ends of the pressure roll in the axial direction, and the pressure roll is previously provided. The standby position of the pressure roll having a predetermined small gap between the two rolls is adjusted and set on the basis of the measured values of the two beam sensors in the nip state in which the roll is contacted with the receiving roll. A pressing method for the cloth squeezing roll device according to claim 1. 3. A receiving roll arranged in parallel, a pressure roll which can be pressed against the receiving roll, and a pressing drive means for bringing the pressure roll into pressure contact with the receiving roll. A squeeze roll device that nips and squeezes a fabric that travels between rolls, and measures the distance from the opposite side of the pressure action direction to the pressure roll at both axial ends of the pressure roll. And the beam sensor arranged so that the pressure roll has a predetermined small gap between the rolls, based on the measured values of both beam sensors in the nip state where the roll is in contact with the roll. Standby position setting means for adjusting and setting the standby position of the roll, and controlled to operate in response to the drive of the pressing drive means,
During the first-stage pressurizing operation of the pressure roll by the pressing drive means, the pressing roll is temporarily held at the standby position set by the standby position setting means, and then the holding is released and the pressing drive means is used. A squeeze roll device for a cloth, comprising a standby holding means for performing a second-stage pressing operation.