JPS62259947A - Positioner for sheetlike article - Google Patents

Abstract

PURPOSE:To make each positioning for sheetlike articles different in width each into automation, by controlling a driver for a support block or a movable carriage so as to cause a pair of detectors installed in front of a front end of the new sheetlike article to come into a state of detecting a side end of the existing sheetlike article. CONSTITUTION:This device consists of a support block 8, a movable carriage 2, both detectors 15A and 15B, a driver and a controller. The support block 8 clamps the rear end side of the existing sheetlike article A, while the movable carriage 2 clamps the front end side of a new sheetlike article B, making this move to the rear end side of the existing sheetlike article B. Paired detectors 15A and 15B are symmetrically installed in the movable carriage 2, and situated in front of a front end of the new sheetlike article B, detecting a side end of the existing sheetlike article A. The driver moves either of the support block 8 or the movable carriage 2 in both directions. The controller receives each signal out of both these detectors 15A and 15B, and operates the driver so as to cause these detectors 15A and 15B to come into a state of detecting the side end of the existing sheetlike article A.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to the present sheet-like material being unrolled and
This is used in a sheet feeding device that automatically unwinds new sheet materials (this is used to unwind these sheet materials), and when connecting both of the above sheet materials (this The present invention relates to a sheet-like object positioning device 1 for positioning a sheet-like object in the width direction.

[Conventional technology]

Conventionally, sheet materials such as fabrics, leather-like sheets, synthetic resin sheets, etc. have been continuously unwound by connecting the current sheet material wound around a winding core with a new sheet material. The processed material is supplied to a processing device (for example, see Japanese Patent Publication No. 17105/1983).

Generally, in the above-mentioned feeding device, in order to adjust the tension of the sheet-like material during unwinding, The position of the preceding current sheet-like object (the rear end of the sheet in the horizontal direction shifts randomly). Therefore, after aligning the centers of the current sheet-like object and the new sheet-like object, that is, after determining the position,
It connects the two. By doing this, smooth unwinding and feeding of the sheet-like material is attempted.

[Problem that the invention seeks to solve]

By the way, in the case of the above-mentioned sheet-like material, since the width of the sheet-like material differs for each lot, it is not easy to automate the positioning of both. For this reason, in the past, the centers of both had to be aligned manually, resulting in poor productivity and work efficiency.

This invention was made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a sheet-like object positioning device in a sheet-like object feeding device that can automatically perform the above-mentioned positioning of the sheet-like object. There is.

[Means for solving problems]

In order to achieve the above object, the present invention first comprises a support stand, a moving stand, a detection 8J, a drive device, and a control device. The support stand fixes the rear end side of the current sheet-like object, and the blade marking moving stand fixes the curved end side of the new sheet-like object, and moves this to the rear end side of the current sheet-like object. .

A pair of left and right detectors are provided on the movable table, and the detectors are located one point in front of the 1]σ end of the new sheet to detect the side edge of the current sheet. The driving device moves either the support stand or the moving stand in the left-right direction.

The control device receives signals from both of the detectors and operates the drive device so that both of the detectors detect the side edges of the current sheet-like object.

[Effect]

According to this invention, a pair of left and right detectors are provided on the movable table, which are located in front of the curved end of the new sheet-like object and detect the side edges of the current sheet-like object, and the drive device is used as a support for fixing the sheet-like object. Since either the table or the moving table is moved in the left-right direction, both detectors can be in a state where they are detecting the side edge of the current sheet-like object, and the control device operates the gaJ device to maintain this state. Activate. Therefore, it is possible to align the centers of both sheet-like materials by aligning both ends of the sheet-like materials with reference 1.

〔Example〕

Hereinafter, embodiments of the present invention will be explained in turn.

In FIG. 1 showing an embodiment of the present invention, 51 is a sheet material supply device, 52 and 53 are storage machines, 54 and 55 are dancer rollers, 56 is a processing machine, and 57 is a sheet material winding device. be. The feeding device 51 connects the current sheet-like material A and the new sheet-like material B and unwinds them to the entrance side of the processing machine 56.

58 is at the unwinding position f2, supports the winding cores of the current sheet-like material A and the new sheet-like material B, and is rotatable in the direction of arrow C.

Reference numeral 1 denotes a clamping device which, when unwinding into the current sheet-like material is completed, clamps the current sheet-like material between the nip roller 1a and the pressing member 1b, so that both the sheet-like materials A and B are connected. This is to stop the current sheet-like material A until it reaches the end. The storage machine 52 transfers the current sheet material A to the processing machine 56 and the supply bag a51.
While the supply of the current sheet material A from the feeding device 51 is stopped by the holding device IJζ, the stored current sheet material A is transferred to the processing machine 56.
(ζ) As a result, both sheet-like materials A and B are continuously supplied to the processing machine 56.

Reference numeral 2 denotes a moving table, which moves the front end side of the new sheet-like material B fixed at the set position Pl of the current sheet-like material B to the rear end side of the current sheet-like material A that is fixed. This moving platform 2 includes a moving frame 5 that moves along a rail 3 by a driving force, and a hinge (not shown) for this moving frame 5, which is operated by an air motor (not shown). It consists of a rotary table 4 that rotates in the direction of the arrow.The movable table 2 has a set position 1?lP1, a standby position i2!P2, a cutting position 12Pg where the cutting machine 6 cuts the new sheet material B, and a cutting position 12Pg where the cutting machine 6 cuts the new sheet material B. A pair of rails 3 are provided on the frame 51a of the feeding device 51, and the width between the rails 3 is wider than the length of the winding core of the sheet-like material. The supply of new sheet-like material B from the direction of arrow E is made possible as an OJ function.

FIG. 2 shows the state of the set position Pi, and the moving frame 5
The notch hole 5a is cut by α, and the large cut hole 5alζ
A new sheet material B is inserted. A holding plate 41 is rotatably provided with respect to the plate 42, and is pressed in the direction of the arrow by a spring (not shown) to fix the front end side of the new sheet-like material B. Reference numeral 43 denotes a tagging gun, which is arranged in multiple stages in the width direction of the sheet-like object, and is pressed by the air cylinder device 44 shown in FIG. 1, so that the trigger 43a shown in FIG. , a tag pin (not shown) for sewing both sheet materials together is ejected from the tip 43b. The plate 42 has an insertion hole 42a through which the tip 43b of the tagging gun 43 is inserted, and a suction port 42b through which the new sheet B is sucked.
and a relief portion 42c in FIG. 2 of the rotary blade 6C in the cutting machine 6 in FIG. 1 are provided.

FIG. 3 shows the cutting position 1IiltP8, in which the cutting machine 6 and the support stand 8 are supported on the fixed stand 7. The cutting machine 6 cuts the rear and front ends of both the sheet materials A and B, and includes a rail 6a extending in the width direction of the sheet material and a guide bearing that is slidable along the rail 6a. 6b and a rotary blade 6C. This vJ iso 6 is rotated by a motor (not shown) while waiting outside the new sheet-like material B (0 width direction) with the rotary blade 6C protruding from the surface of the new sheet-like material B. At the same time, the guide bearings 6b run along the rails 6a in the width direction of the sheet-like objects A.

Cut B.

The support stand 8 is movable in the width direction of the sheet-like object, and the block 9
and the thin cylinder 10, the support frame 11, the cam follower 12, and the rail 1 in FIG. 4 showing the connection position IMF.
3, a guide bearing 14, and the clamping device 1 described above. A clamping device 1, a thin cylinder 10, a guide bearing 14, and a cam follower 12 shown in FIG. 3 are fixed to the support frame 11. The cam follower 12 rolls while sandwiching a guide plate 7a provided on the fixed base 7 via a bracket 7C, and is provided at two locations in the width direction of the sheet-like object. (This is to assist the guide. The rail 13 and the guide bearing 14 are also provided at two locations in the width direction of the sheet-like material. A suction port 9a is movably supported from 7b and sucks the current sheet-like material A.
and a relief portion 9b of the tip portion 43b of the tagging gun 43 are provided.

Detectors 15A and 15B are located in front Cζ of the front end of the new sheet-like material B, and are provided in a pair on the left and right sides of the movable frame 5 of the rear support stand 2.This detector 15A.

15B is movable in the left-right direction with respect to the moving frame 5, that is, in the width direction of the sheet-like object, and in this embodiment, light is applied to both ends of the current sheet-like object and the reflected light is detected. A reflective optical sensor is used.

FIG. 5 shows the control device. The control device 'ta20 receives the detection numbers a and b of the current sheet-like object A (see Figure 4) from the surface detectors 15A and 15B, and the surface detectors 15A and 15B detect the current sheet-like object A (the The drive device 16 is operated so that it is in a state where it is detecting the side edge of the device (see figure). In this embodiment, the drive device 16 is a hydraulic cylinder that moves the support platform 8 in the width direction of the sheet-like object, that is, one angle in the left and right direction. It may also be moved.

Reference numeral 21 denotes a pneumatic pressure source, which is connected to a 5-point/2-position switching valve 22 and 23 through an air pipe 241. The switching valve 22 is 2
The switching valve 32A is connected to the point and two position switching valves 32A and 32B by an air pipe 26.

Switch 32B. On the other hand, the switching valve 23 operates on the pneumatic side of the pneumatic and hydraulic cylinders 27A and 27B.

28B and 29 air pipes are connected by 29B+ζ. The hydraulic cylinder sides 30A and 30B of the pneumatic hydraulic cylinders 27 and 27B are connected to the hydraulic aH pipes 33A and 3, respectively.
1.3B and speed control valves 3LA and 31B. It is connected to the exchange valves 32A and 32B. The switching valves 32A, 32B are connected to the left and right sides of the cylinder 6a of the drive device 16, respectively, by hydraulic pipes 34A, 34B.

LS, LS2. LS8 is a reed switch that detects the protruding end, neutral, and contracted end of the rod 16b, and outputs a protruding end signal C1, a neutral signal d, and a contracted end signal e of the rod 16b. 17 is a logic circuit, which receives the above signal a...
In addition to e, it receives the moving table position (a and f) and outputs a movement signal $rg and a direction signal to the switching valve 22 and the switching valve 23, respectively.

Next, the operation of the above configuration (ζ) will be explained.

First, with the movable table 2 in FIG. 1 at the standby position P2 and while the current sheet material is being unwound, a new sheet material B is loaded onto the unwinding device 58 from the direction of arrow E. Next, the movable table 2 is lowered to the set position P1, and the rotary table 4 in FIG. 2 is rotated in the direction indicated by the arrow by the operation of the air motor.

After this rotation, the new sheet material B is manually held by the holding plate 411ζ.

Thereafter, the movable table 2 rises again to the standby position P8 in FIG. 1, and waits here for the completion of unwinding the current sheet-like material A. When the current sheet-like material A is completely unwound, the holding device 1 clamps the current sheet-like material A between the nip roller 1a and the suppressing member 1b. After this clamping, the current sheet-like object is held down from above by a holding member (not shown), and the cutting machine 6
The rear end portion is cut and removed by the rotary blade 6C. After this cutting, the current sheet-like object shown in FIG. 3 is moved slightly in the direction of arrow N (in this direction), and its rear end Aa is at a position displaced from the rotary blade.

After that, while the moving table 2 is sucking the new sheet-like material B from the suction port 9a, the relief part 42C of the plate 42 and the rotary blade 6
It rises to the cutting position fiPi that matches the position with C. After this rising, the new sheet-like material B is cut by the rotary blade 6C rotating and traveling along the clearance part 42CE of the plate. After this cutting, the movable table 2 is placed in the cutting position where the distal end 43b of the tagging gun 43 faces the relief part 9b of the block 9 in FIG. It rises to tP4. As a result of this rise, the movable table position signal f shown in FIG. 5 is input to the one-way circuit 17, and a positioning operation is started.

Figure 6 (at ζ, set the new sheet-like material B at position P1 (
When fixing the movable base 2 (Fig. 1), the widthwise center 1ζ of the movable base 2 is placed.Also, the detectors 15A and 15B, which are movable in the left and right directions, are placed in front of the new sheet B, respectively. On the other hand, assume that the current sheet-like material A is swung left and right 1ζ during unwinding, and its position is shifted, for example, to the left.

In FIG. 5, a logic circuit 1 receiving a moving table position signal f
7 receives the detection signals a and b from the detectors 15A and 15B, that is, the detection signal a is ON and the detection signal is OFF, and outputs a mobile signal @g. The switching valve 22 that received the movement signal g switches to ON (moves to the left), and as a result, the pressure of the air pressure source 21 passes through the air piping 24, the switching valve 22, and the air piping 26, and the switching valves 32A and 3211 are turned ON.
Switch to state 1ζ (move to the left). On the other hand, the pressure of the pneumatic source 21 is introduced into the pneumatic side cylinder 28A of the pneumatic hydraulic cylinder 27A via the switching valve 23 and the pneumatic pipe 29A, and applies pressure to the hydraulic side cylinder 30AIζ. This pressure is the speed control valve 31A1 and the switching valve 32A.
and is introduced to the left side of the drive unit 16 via 34 hydraulic pipes. As a result, the rod 16b moves to the right,
At the same time, the support stand 8 and the current sheet-shaped object in FIG. 6 also move to the right.

In this way, as shown in Figure 7, both sides are exhibited 15A.

When 15B is turned on, the logic circuit 17 in FIG.
N-state detection signals a and b are input. Upon receiving this, the logic circuit 17 immediately switches the 1-movement No. 1 g to turn the switching valve 22 into the OFF state (state in the drawing) 1ζ. As a result, the rod 16b of the drive device 16 is stopped, and the movement to the support base 8 and the current sheet-like object shown in FIG. 7 is stopped. In this way, both ends of both sheet-like materials A and B are referenced (thus, both sheet-like materials A and B are used as reference points).

Automatically set the center of B (ζ together).

After this positioning, the thin cylinder 10 shown in FIG. 4 protrudes and the block 9 is pressed toward the floating table 4, so that both the sheet materials A and B are in a superposed state. In this superposed state, the tagging gun 43 shown in FIG. 4 moves forward due to the protrusion of the cylinder assembly 44 in FIG. During the forward movement of the tip 43b, the trigger 43a of the tagging gun 43 comes into contact with the abutting portion 45, and a tag pin is ejected from the tip 43b, thereby joining both sheet materials A and B. . After this joining, the suction state of both suction ports 42b and 9a is released, the thin cylinder 10 is contracted, the holding state of the holding bag fill is released, and both sheet-like objects B are unwound again. .

After this unwinding, the logic circuit 17 in FIG. 5 outputs the movement signal g, and in response to this, the rod 16b of the drive device a16 is
moves further to the right and reaches the position IIIζ indicated by the broken line, the reed switch LSa is turned on. From this 1, the contraction end signal e is output to the logic circuit 17, and the logic circuit 1
7 receives this and outputs a direction signal. With this output, the switching valve 23 is switched (switched to the left side), the pressurized state of the pneumatic hydraulic cylinder 27A is released, and at the same time, the pneumatic hydraulic cylinder 27B is put into the pressurized state, which is the opposite of the above. , the rod 16b and the support stand 8 move to the left.

When the rod 16b reaches the neutral position, the neutral signal d is input to the logic circuit 17, and the logic circuit 17 that receives this turns off the movement signal g, and the operation of the drive device 16 is stopped. As a result, the support base 8 and the drive device 16 are returned to the neutral position and are ready for the next positioning operation.

The above positioning has been described for the case where the width of the current sheet-like object B is larger than the width of the new sheet-like object B in FIG. 7, but in the opposite case, it is performed as follows. As shown in Fig. 8, with both corners Ba of the tip of the new sheet-like material B cut off in advance to match the width of the current sheet-like material, the new sheet-like material B is transferred to the moving table 2.
Set 1ζ.

On the other hand, the detectors 15A and 15B are connected to the tip of the new sheet-like material B (
Move to the inside of both corners Ba of the corner and fix.

Thereafter, in the same manner as in the above positioning, the current sheet-like material A is moved and rubbed in state 1 in FIG.

In this case, since both corners Ba that may impede smooth unwinding of the sheet materials A and B are cut off, the sheet materials A and B are unwound smoothly.

By the way, as shown in Fig. 10, if the width of the new sheet-like material B is larger than the width of the current sheet-like material A, due to the operator's error, the current sheet-like material A as shown by the two-dot chain line may be Sometimes the width is larger and the wrong one is set. In this case, the logic circuit 17 that receives the detection signal of FIG. 5 from the detector 15B moves the rod 16b to the left and
Move the current sheet material A in Figure 0 to the left. Then, when the rain detectors 15A and 15B in FIG. 11 are turned off, the logic circuit 17 in FIG. 5 stops outputting the movement signal g (ζ
, a warning No. 1 (not shown) is output to notify the operator of this condition. The worker who received this drops both corners Ba of the new sheet-like material B shown in FIG. 11 by 12J and restarts the process.

Although the case where the widths of the sheet-like materials A and B are different has been described above, it goes without saying that the apparatus of the present invention can also be used when the widths of the sheet-like materials A and B are the same.

[Effects of the Invention] As explained above, according to the present invention, a pair of rain detectors disposed on the left and right in front of the front end of a new sheet-like material (which changes fortune) detects the side edges of the current sheet-like material. The control device operates the drive device of the support table or the moving table so that the detection state is achieved.Therefore, the position shift in the width direction with respect to both ends of the two sheet-like objects having different widths is detected. can be automatically reduced.

[Brief explanation of drawings]

FIG. 1 is a schematic side view showing one embodiment of the present invention, wi2
The figure is a vertical cross-sectional view of the moving table at the set position 1ζ, Figure 3 is a vertical cross-sectional view at the new sheet cutting position 1, Figure 4 is a cross-sectional view R1 at the connection position [+ζ], and Figure 5 is a cross-sectional view of the control device. Schematic configuration diagram, Fig. 6 is a plan view showing the state before positioning when the width of the current sheet-like object is large, Fig. 7 is a plan view after the same positioning, and Fig. 8 is a plan view showing the state before positioning when the width of the current sheet-like object is small. FIG. 9 is a plan view showing the state before positioning in case of error, FIG. 9 is a plan view after positioning, FIG. 10 is a plan view in case of error, and FIG. 11 is a plan view when stopped. 2...Moving table, 8...Supporting table, 15A, 15B...
・Detector, 16... Drive device, 20... Control device,
51... Feeding device, A... Current sheet-like material, B...
New sheet material.

Claims (1)

[Claims] (1) A sheet-like object positioning device in a sheet-like object feeding device that connects and unwinds a current sheet-like object that is being unrolled and a new sheet-like object that is to be unrolled next, wherein the current sheet-like object is a support base for fixing the rear end side; a moving base for fixing the front end side of the new sheet-like article and moving it to the rear end side of the current sheet-like article; and a front end of the front end of the new sheet-like article. a pair of left and right detectors located on the movable base to detect the side edges of the current sheet-like object; and a drive device for moving either the support base or the movable base in the left-right direction; A sheet-like object positioning device comprising a control device that receives signals from both of the above-mentioned detectors and operates the above-mentioned drive device so that both of the above-mentioned detectors are in a state where they detect the side edges of the current sheet-like object. .