JP2863887B2 - Web transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a web transporting apparatus which can automatically carry out a web withdrawing operation on a loading side such as a pin tenter for transporting a web such as a cloth or a sheet and a web heat treatment apparatus. Things.

[0002]

2. Description of the Related Art The present applicant has previously provided a drawer for automatically storing a web removed from a pin tenter in a state of being shaken down and piled up on a bucket (Japanese Patent Laid-Open No. Hei 4-23756).

In this drawer, endless chains for transporting the web from the inlet to the outlet of the drawer are provided on both the left and right sides of the running path of the web, and rollers for guiding the web from the inlet to the outlet are provided. A holding member to which the tip of the web is attached is provided between the left and right endless chains. Thereby, the web attached to the holding member is transported from the entrance to the exit of the drawer as the endless chain travels.

In this drawer, a holding member holding the end of the web runs along with endless chains arranged on both sides of the web running path, and feeds the guide rollers which have been troublesome until now. Do it automatically.

[0005]

However, even in the drawer of the above construction, in order to attach the web running on the pin tenter to the holding member, an operator removes the web from the pin tenter and attaches the tip to the holding member. Work was required to attach to

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a transport device that can automatically remove a web from a pin tenter and transport the web.

[0007]

According to a first aspect of the present invention, there is provided a web transport apparatus for removing a web from a pin tenter which transports the web in a spread state by attaching both ears of the web to pins implanted on a pair of tenter rails. A web transport device,
Web detecting means provided at the transfer end position of the pin tenter, and a gripping means having a gripper that can be opened and closed, and closing the gripping part and gripping a tip end of the web when the detecting means detects the web. And detaching means for removing the web from the pin by moving the gripping means upward so as to pull the web gripped by the gripping portion upward.

According to a second aspect of the present invention, there is provided a web transporting apparatus provided on a discharge side of a pin tenter for transporting the web in a spread state by attaching both ears of the web to pins implanted on a pair of tenter rails. A swing-down means swingably suspended above the transfer device, a guide roller group including a plurality of guide rollers for guiding the web to the shake-down means, and provided at both ends of the plurality of guide rollers. And a pair of return chainwheel groups each including a pair of guide chainwheels, and a pair of belts or chains respectively laid over the pair of guide chainwheel groups and the pair of return chainwheel groups. An endless chain, a driving means for driving the pair of endless chains, and a holding member provided between the pair of endless chains. Wood and a gripping means for gripping a web of tip portion provided in the holding member is made more and removal means for removing the web by moving the gripping means from the pin.

According to a third aspect of the present invention, there is provided a web transfer device.
Alternatively, in the web transport device according to 2, the removing means comprises a reversing means for rotating the gripping means upward about a rotation shaft provided above the gripping means.

According to a fourth aspect of the present invention, there is provided a web transport apparatus according to the second aspect.
In the web transport device described above, the removing means comprises moving means for moving the gripping means upward.

According to a fifth aspect of the present invention, there is provided a web transport apparatus according to the first aspect.
Alternatively, in the web transport device according to claim 2, a pair of gripping means are provided on both left and right sides of the web transport path, and width adjusting means for moving the pair of gripping means symmetrically in the width direction is provided. is there.

According to a sixth aspect of the present invention, there is provided a web transport apparatus according to the second aspect.
The web transport device according to claim 1, wherein the web is removed from a pin tenter that transports the web in a spread state by attaching both ears of the web to pins implanted in a pair of tenter rails, wherein the web is located above a transport end position of the pin tenter. A web detecting means provided at a position above the transfer end position of the pin tenter, a gripping means for gripping a leading end of the web when the detection means detects the web, and a web transfer end position. A pair of upper and lower guide belts are provided, and the web is sandwiched between the guide belts, pulled up, and moved to the gripping means.

According to a seventh aspect of the present invention, there is provided a web transport apparatus provided on a discharge side of a pin tenter for transporting the web in a spread state by attaching both ears of the web to pins implanted on a pair of tenter rails. A swing-down means swingably suspended above the transfer device, a guide roller group including a plurality of guide rollers for guiding the web to the shake-down means, and provided at both ends of the plurality of guide rollers. A guide chain wheel group and a pair of return chain wheel groups each including a pair of guide chain wheels provided, and a pair of endless chains respectively wrapped around the pair of guide chain wheel groups and the pair of return chain wheel groups. A driving unit for driving the pair of endless chains, a holding member provided between the pair of endless chains, and a holding member provided on the holding member. And gripping means for gripping a web of tip which consists of a pair of upper and lower guide belts provided on the conveying end position of the web, and moves to the gripping means Te pulled across the web between these guiding belts.

According to a second aspect of the present invention, there is provided a web transport apparatus according to the second aspect.
Alternatively, in the web transfer apparatus according to the seventh aspect, a control means for reducing the line speed of the pin tenter while the web is being transferred by the transfer apparatus is provided.

According to a ninth aspect of the present invention, in the web transporting apparatus according to the first, second, sixth, or seventh aspect, the gripping means provided on the holding means drives the gripping means. A supply means for supplying driving energy such as air or electricity to be supplied is provided, and the supply means is detachably attached to the holding means.

According to a tenth aspect of the present invention, in the web transporting device of the first aspect, the web transporting device comprises a releasing means for releasing the gripping state of the gripping means provided at the transport end position of the moving means. is there.

The web transport device according to the eleventh aspect is a web transport device arranged on a discharge side of a pin tenter for transporting the web in a spread state by attaching both ears of the web to pins implanted on a pair of tenter rails. A swing-down means swingably suspended above the transfer device, a guide roller group including a plurality of guide rollers for guiding the web to the shake-down means, and provided at both ends of the plurality of guide rollers. A guide chain wheel group and a pair of return chain wheel groups each including a pair of guide chain wheels provided, and a pair of endless chains respectively wrapped around the pair of guide chain wheel groups and the pair of return chain wheel groups. Driving means for driving the pair of endless chains;
A holding member erected between the pair of endless chains,
A guide belt provided at a web transfer end position, a pull-up roller provided above the guide belt, and gripping means for gripping a leading end of the web provided on the holding member; Pull the web between the pulling rollers and pull it up to move it to the gripping means

According to a twelfth aspect of the present invention, there is provided a web transfer device according to the first, second, third , fourth , fifth , sixth , seventh , ninth , tenth , or eleventh aspects .
In the above description, the gripping means is a chuck.

According to a thirteenth aspect of the present invention, there is provided a web transporting device arranged on a discharge side of a pin tenter for transporting the web in a spread state by attaching both ears of the web to pins implanted on a pair of tenter rails. A guide belt provided at a web transfer end position, and a pull-up roller provided above the guide belt, wherein the web is pulled up between the guide belt and the pull-up roller. .

[0020]

According to the web transport device of the first aspect, the gripping portion provided at the transport end position of the pin tenter and gripping the leading end of the web is transported by the pin tenter when the detecting means detects the web. The web is detached from the pin by grasping the leading end of the web and moving the grasping portion upward. As described above, the work of removing the web from the pin by the operator's hand is not required, and the work efficiency is improved.

According to a second aspect of the present invention,
The gripping means provided on the holding member grips the leading end of the web conveyed from the pin tenter, and the removing means moves the gripping means to remove the web from the pin. Thereafter, the driving means moves the pair of endless chains along the guide chain wheel portion. Thus, the web held by the holding member is transported between the guide roller groups. As described above, there is no need to remove the web from the pins by the operator's hand, and the work efficiency is improved.

According to a third aspect of the present invention,
After the gripper grips the leading end of the web, the reversing means, which is a removing means, rotates the gripper upward about the rotation axis.
By rotating the gripping portion upward, the web can be reliably removed from the pin.

According to the web transport device of the fourth aspect, the moving means removes the web from the pin tenter by moving the grip portion holding the tip of the web upward. Thus, the web can be reliably removed from the pin.

According to the web transfer device of the present invention, the pair of gripping portions provided on the left and right sides are moved to the positions where the pins of the pin tenter are provided according to the width of the web to perform the removing operation. Do. In other words, the work of removing the web from the pin needs to be performed near the pin because it is necessary to prevent the breakage of the web and transmit the force for removing the web to the portion of the web where the pin is inserted. However, if the position of the gripping portion is fixed, the width of the web changes, and if the location of the web where the pin touches also changes, the removal operation may not be performed properly. Therefore, as described above, the pair of gripping portions are moved according to the width of the web to reliably perform the removing operation.

According to the web transport device of the present invention, the web is sandwiched between a guide belt composed of a pair of upper and lower belts provided at the web transport end position, and is pulled upward. The web is removed from the pin by this pulling operation. As described above, there is no need to remove the web from the pins by the operator's hand, and the work efficiency is improved.

[0026] In the web transport device of claim 7,
The web is sandwiched between a pair of upper and lower guide belts provided at a position where the web has been conveyed, and is pulled up. The web is removed from the pin by this pulling operation. Thereafter, the driving means moves the pair of endless chains along the guide chain wheel portion. Thus, the web held by the holding member is transported between the guide roller groups.
As described above, there is no need to remove the web from the pins by the operator's hand, and the work efficiency is improved.

[0027] In the web transfer device of the eighth aspect,
While the transport device is transporting the web, the line speed of the pin tenter is reduced by the control means to reliably remove the web from the pins.

According to the ninth aspect of the present invention, when the gripping means provided on the holding means removes the web from the pin tenter, the supply means is attached to the holding means to supply the driving energy. After the web is removed, the supply means is removed because the holding means is moved by the guide chain wheel. This eliminates the need to attach a member for supplying drive energy to the holding means, simplifies the structure, and facilitates maintenance.

According to the web transport device of claim 10,
When the gripping means for gripping the leading end of the web is moved by the moving means and reaches the transport end position, the gripping state of the gripping means is released by the releasing means and the web is removed.

Thus, the web can be automatically removed without relying on humans.

In the web transport apparatus according to the eleventh aspect , the web is sandwiched between a guide belt provided at a web transport end position and a pull-up roller and pulled upward. The web is removed from the pin by this pulling operation.
Thereafter, the driving means moves the pair of endless chains along the guide chain wheel portion. Thus, the web held by the holding member is transported between the guide roller groups. As described above, there is no need to remove the web from the pins by the operator's hand, and the work efficiency is improved.

According to a twelfth aspect of the present invention, the web is held by a chuck.

In the web transport apparatus according to the thirteenth aspect , the web is sandwiched between the guide belt provided at the web transport end position and the pull-up roller and pulled upward. The web is removed from the pin by this pulling operation.

[0034]

[Table of Contents] [A] One embodiment of the web transfer device of the present invention (1) Pin tenter (2) Pull-out device (3) Carrier member (4) Connection box (5) Chuck with cloth by shaking off device (6) Air piping for operating the chuck and rotary actuator (7) Control system of pin tenter and pull-out device (8) Operation of chuck removing cloth from pin (9) Structure for moving chuck in left and right direction (10) Control of line speed (11) Operation state of drawer [B] Second embodiment of carrier member [C] Third embodiment of carrier member [D] Another embodiment of web transport device [A] Book One embodiment of the web transfer device of the present invention Hereinafter, one embodiment of the web transfer device of the present invention,
A description will be given based on FIGS.

As shown in FIG. 19, the cloth W folded and stored in the bucket 1 is taken out by the take-out device 2, the cloth W is attached to the pin tenter 4 by the pinning device 3, and the cloth W is transported in the spread state. In a system in which the heat treatment is performed by the heat treatment machine 5 and the cloth W is removed from the pin tenter 4 by the drawer 6 and then stored again in the bucket 7 in a folded state, the present embodiment includes the pin tenter 4, the drawer 6 and It relates to a carrier member 54 that moves inside the drawer 6. Hereinafter, the structure will be described in order.

(1) Pin tenter The pin tenter 4 will be described below.

The pin tenter 4 is provided with a pair of left and right tenter rails 10. An endless chain (not shown) runs on the tenter rail 10, and the endless chain is provided with a plurality of pin support portions 12. A plurality of pins 14 are implanted in the pin support 12. By attaching both ears of the cloth W to the pins 14 and driving the endless chain, the cloth W is caused to travel along the tenter rail 10 in the spread state. Note that the tenter rail 10 is movable in the left-right direction, and the size between the tenter rails 10 can be changed according to the width of the cloth W. The endless chains of the tenter rails 10 are driven by a tenter motor 16.

(2) Drawer Device The drawer device 6 will be described below.

The drawer device 6 includes a pair of frames 20 and 2
There are provided four guide rollers 22 to 28 for transporting the cloth W during zero. The first guide roller 22 is provided near the entrance of the pull-out device 6, that is, near the transfer end position of the pin tenter 4, and the fourth guide roller 28 is provided at the upper end of the pull-out device 6, that is, at the swing-down position. And
By driving the first guide roller 22 by the cloth conveying motor 302, the conveying speed of the cloth W (hereinafter, referred to as line speed).
Transport by. In addition, since the line speeds of the cloth transport motor 302 and the tenter motors 16 of the tenter rails 10 and 10 need to be matched, they are connected by a gear box or a pulse transmitter.

Reference numeral 29 denotes a pair of 0-th chain wheels provided at the position where the pin tenter 4 is conveyed.

Reference numeral 30 denotes a first chain wheel provided at both ends of the first guide roller 22. Although the roller and the chain wheel are provided coaxially, they are independently driven.

Reference numeral 32 denotes a second chain wheel provided at both ends of the second guide roller 24. Although the roller and the chain wheel are provided coaxially, they are independently driven.

Reference numeral 34 denotes a third chain wheel provided at an intermediate position between the second guide roller 24 and the third guide roller 26.

Reference numeral 36 denotes a fourth chain wheel provided at both ends of the third guide roller 26. Although the roller and the chain wheel are provided coaxially, they are independently driven.

Reference numeral 38 denotes a fifth chain wheel provided at both ends of the fourth guide roller 28. The fifth chain wheel 38 is provided with two chain wheels 38a and 38b coaxially. . Although the roller and the chain wheel are provided coaxially, they are independently driven.

Reference numerals 40 and 42 denote a sixth chain wheel and a seventh chain wheel, respectively, which are installed on a pair of hanging frames 8a and 8b of the swing-off device 8, and are provided at the lower end of the swing-off device 8. .

Reference numeral 44 denotes an eighth chain wheel provided at the center of the frame 20. The eighth chain wheel 44 is movable by an air cylinder 44a, thereby adjusting the length of an endless chain described later.

Reference numeral 46 denotes a ninth chain wheel provided above the eighth chain wheel 44.

Reference numeral 48 denotes a tenth chain wheel provided near the entrance of the drawer 6.

Reference numeral 50 denotes a swing roller provided in the vicinity of the transfer end position of the pin tenter 4. The swing roller 50 is lifted by the air cylinder 50a when removing the cloth W from the pin 14, and descends and presses the cloth W during normal operation.

Reference numeral 52 denotes a pair of endless chains.
The endless chain 52 includes the 0th chain wheel 29, the 1st
Chain wheel 30, second chain wheel 32, third chain wheel 34, fourth chain wheel 36,
Inner chain wheel 38 of fifth chain wheel 38
a, the sixth chain wheel 40, the seventh chain wheel 42, the outer chain wheel 38b of the fifth chain wheel 38, the eighth chain wheel 44, the ninth chain wheel 46, and the tenth chain wheel 48. The endless chain 52 is not limited to a chain (chain) but may be a belt. Therefore, the endless chain referred to in the claims means a broad concept including an endless chain (chain) and an endless belt.

Reference numeral 54 denotes a pair of endless chains 52,5.
2 is a carrier member installed between the two. The carrier member 54 automatically grasps the leading end of the cloth W, and
Automatic transfer from the entrance to the exit of the

(3) Carrier Member The carrier member 54 will be described below.

Reference numeral 56 denotes a plate-like frame that forms the main body of the carrier member 56. Connection members 58, 58 for connecting to the pair of endless chains 52, 52 are provided on the upper surfaces of both ends of the frame 56. Thereby, when the endless chain 52 moves, the carrier member 54 also moves.

Reference numerals 60 and 62 denote a pair of left and right linear rails provided on the rear surface of the frame 56.

Reference numerals 66 and 68 represent linear rails 60 and 6 respectively.
2 are screw rods respectively provided at the rear of the two. The left screw rod 66 is a left screw, and the right screw rod 68 is a right screw. And the screw rods 66 and 68 are
It is connected via a gear box 64 composed of a bevel gear, and when the screw rod 66 rotates, the screw rod 68 also rotates at the same speed.

Reference numerals 70 and 72 are linear rails 60 and 6 respectively.
2 are moving members provided on the screw rod 6 respectively.
By rotating 6, 68, linear rails 60, 62
Move symmetrically along.

Reference numeral 76 denotes a connection box provided at the right end of the screw rod 68. A brake release rod 80 protrudes from the right end of the connection box 76. The detailed structure of the connection box 76 will be described later.

Reference numeral 78 denotes a claw-type crank rod provided at the left end of the screw rod 66.

Reference numerals 82 and 84 denote rotary actuators provided in front of the moving members 70 and 72, that is, on the front surface of the frame 56.

Reference numerals 86 and 88 denote chucks provided on the rotating shafts of the rotary actuators 82 and 84, respectively. The chucks 86 and 88 include an air cylinder 86a and a grip portion 86b that grips the tip of the cloth W. Air cylinder 86a
One of the gripping portions 86b is provided on the main body, and the other of the gripping portions 86b is provided on the cylinder. By driving the cylinder,
The other of the gripping portions 86b contacts the one and performs an operation of gripping the cloth W.

Reference numerals 90 and 92 denote air tanks provided on the front surfaces of both ends of the frame 56, respectively.

Reference numerals 94 and 96 denote solenoid valves for opening and closing the chucks 86 and 88, respectively.

Reference numerals 98 and 100 designate the chuck 8
These mechanical valves open and close 6, 88 respectively.

Reference numerals 102 and 104 denote solenoid valves for driving the rotary actuators 82 and 84.

Reference numerals 106 and 108 denote docking members fixed to both ends of the frame 56. The left docking member 106 is provided with two connection recesses 110 and 112, and has an air supply connection port 116 for supplying air to the air tank 90 and a solenoid valve 9.
4, 102 are provided with connection terminals 114 for supplying electricity. Further, the crank rod 78 protrudes. The connection recess 118,
120, an air supply connection port 122 and a connection terminal 124 are provided, and the brake release rod 80 protrudes.

Reference numerals 126 and 128 are couplers provided on the upper surface of the pin tenter 4. These couplers 126 and 12
8 is movable in the left-right direction by rails 130 and 132, and is moved by air cylinders 134 and 136. On the distal end surface of the left coupler 126, connection protrusions 138 and 140 are provided to connect to the connection recesses 110 and 112 of the left docking member 106. Further, an air supply connection port 142 connected to the air supply connection port 114 and a connection terminal 144 connected to the connection terminal 116 are provided. Further, a claw-type crank bar 146 connected to the claw-type crank bar 78 is provided. Air supply connection port 142
Is connected to an air supply device (not shown),
Is connected to a control unit and a power supply device described later.
The crank rod 146 is connected to a width adjusting motor 150 via a rotary encoder 148.

Similarly, the right coupler 128 has an air supply connection port, a connection terminal, and a brake release air cylinder 156.

When the carrier member 54 stops at a predetermined position, the air cylinders 134 and 136 are operated to connect the couplers 126 and 128 to the docking members 106 and 106.
108, the connection recesses 110 and 112 and the connection protrusion 1
38 and 140 are docked. Thereby, air is supplied from the air supply connection port, and electricity is supplied via the connection terminal.

Reference numerals 160 and 162 denote cloth receiving plates disposed inside the pair of left and right tenter rails 10 and move with the left and right movement of the tenter rail 10. Also,
The air cylinders 164 and 166 are vertically movable. The shape of the left cloth receiving plate 160 is such that the front portion has the inclined surface 16.
0a, a horizontal plane 160 from the upper end of the inclined surface 160a.
b is extended. An opening 160c into which the chuck 86 can enter is opened at the center of the horizontal surface 160b. Similarly, the cloth receiving plate 162 on the right side has an inclined surface 162a, a horizontal surface 162b, and an opening 162c.

(4) Connection Box Hereinafter, the connection box 76 will be described (see FIGS. 10 and 11).

Reference numeral 168 denotes a pressing member provided at an inner end of the brake release rod 80 protruding from the docking member 108. The depression 17 is located at the center of the pressing member 168.
0 is provided.

Reference numeral 172 denotes a support for rotatably supporting the other end of the screw rod 68 via a bearing. The support portion 172 is fixed to the rear surface of the frame 56.

Reference numeral 174 denotes a connecting member provided at the end of the screw rod 68. At the center of the connecting member 174 is a nut 176 for fixing the screw rod 68. This nut 1
76 is smaller than the concave portion 170, and the nut 176 is rotatable in the concave portion 170 when the brake is released.
Further, a flange portion 178 is provided on an outer peripheral portion of the connection member 174.

Reference numeral 180 denotes a brake section movably provided on the support section 172. This brake section 180
Is mounted via a coil spring 182 and is constantly urged outward.

The pressing portion 18 is provided on the outer surface of the brake portion 180.
4, which constantly presses the flange portion 178 by the urging force of the coil spring 182.

The role of the connection box 76 will be described.

A state in which the brake releasing rod 80 and the brake releasing air cylinder 156 are not connected (see FIG. 10).
In, the pressing portion 184 of the brake portion 178 always presses the flange portion 178 outward by the urging force of the coil spring 182, so that the screw rod 68 is prevented from rotating.

When the brake release rod 80 and the brake release air cylinder 156 are docked and the brake release air cylinder 156 presses the brake release rod 80 inward, the pressing member 168 causes the brake portion 180 to move the coil spring 1
Press inward against the urging force of 82. Then, since the pressing force from the pressing portion 184 disappears, the flange portion 178
Are rotatable, and the screw rod 68 is also rotatable. Note that the pressing member 168 does not rotate.

Thus, when the coupler 128 is docked, the screw rod 68 becomes rotatable and the coupler 1
When 28 is away, screw rod 68 cannot rotate.

Since the left screw rod 66 is connected to the screw rod 68 via the gear box 64, the left screw rod 66 performs the same movement as the screw rod 68.

As described above, the screw rods 66 and 68 are made rotatable when the coupler 128 is docked by the chuck 8.
6, 88 is moved in the left-right direction. When the coupler 128 is separated, the screw rod 68 cannot be rotated because the cloth W is not moved when the carrier member 54 is moved.
In order to prevent the chucks 86 and 88 holding the gripper from moving in the left and right directions, and when the coupler 128 is docked,
This is because, when the respective claws of the crank bar 146 do not mesh with each other, if the crank bar 146 is rotated by the motor 150, the crank bar 78 is fixed so that the claws are meshed.

(5) Structure in which Chuck Releases Cloth by Shaking Off Device Hereinafter, a structure in which the chucks 86 and 88 release the cloth W at the lower end of the shaking down device 8 will be described (see FIGS. 4 and 12).

Reference numeral 186 denotes the seventh chain wheel 4
A pair of left and right discs are provided inside the insides 2 and 42, respectively. A semicircular convex ridge 1 is provided on the outer peripheral portion of the inner surface of the
88 are provided. The position where the ridge 188 is provided corresponds to the position where the endless chain 52 is stretched. In addition, inclined surfaces 190 are provided at both ends of the ridge 188.

The carrier member 5 is formed by the endless chain 52.
When 4 is conveyed to the position of the seventh chain wheel 42, the mechanical valve 98 provided on the upper surface of the frame 56 also reaches this position. Mechanical valve 98
Switch 98a hits the inclined surface 190 to be turned on, and moves on the inner peripheral surface of the ridge 188. As a result, the mechanical valve 98 is operated, and the chuck 86 is opened. When the chuck 86 is opened, the cloth W comes off and falls on the bucket 7. When the mechanical valve 98 passes the position of the ridge 188, the switch 98a is turned off and the chuck 86 returns to the closed state.

(6) Air piping for operating the chuck and the rotary actuator Hereinafter, the left chuck 86 and the rotary actuator 8 will be described.
2 will be described (see FIG. 13).

The air supplied from the air supply connection port 114 reaches the air tank 90. A mechanical valve 98 is connected to the air tank 90, and a solenoid valve 94 is connected to the mechanical valve 98. An air cylinder 86 a of the chuck 86 is connected to the solenoid valve 94. Further, a silencer 201 is connected to the solenoid valve 94, and a silencer 200 is connected to the mechanical valve 98.

Thus, when air is supplied from the air supply connection port 114 and electricity is supplied from the connection terminal 116, the chuck 86 is opened and closed by operating the solenoid valve 94 by an electric signal. In a state where air and electricity are not supplied, the mechanical valve 98 is used by utilizing the air in the air tank 90.
Operates to open and close the chuck 86. That is, since the coupler 126 is connected when the chuck 86 grasps the cloth W, the chuck 126 is closed by the solenoid valve 94 to grasp the cloth W, and when the chuck 86 releases the cloth W, the coupler 126 is disconnected. Since it is not connected, the chuck is opened by the operation of the mechanical valve 98.

Further, a solenoid valve 102 is connected to the air tank 90, and the solenoid valve 102
The rotary actuator 82 is connected via the speed controller 192. A silencer 202 is connected to the solenoid valve 102. That is, when the chuck 86 grasps the cloth W and peels the cloth W from the pin 14, the reverse is performed by operating the solenoid valve 102 and rotating the rotary actuator 82. The speed at which the chuck 86 is inverted is controlled by the speed controller 192. This inversion operation is performed in a state where the coupler 126 is connected.

The same applies to the air pipe for operating the right chuck 88 and the rotary actuator 84.

(7) Control System of Pin Tenter and Drawer 6 Hereinafter, a control system of the pin tenter 4 and the drawer 6 will be described (see FIG. 14).

Reference numeral 194 denotes a control unit of the drawer 6. The control unit 194 is composed of a sequencer or a microcomputer.

The control unit 194 includes the cloth receiving plates 160 and 16
2 air cylinders 164, 166, couplers 126, 12
8 air cylinders 134, 136, chucks 86, 88
Air cylinder and rotary actuator 82,
84 are respectively connected via solenoid valves.

The control unit 194 includes the cloth transport motor 3
02, tenter motor 18, second chain wheel 32
Motor 220 for driving the motor, width adjustment motor 1
50 and the encoder 148 are connected.

Further, the following sensors are connected to the control unit 194. This sensor is a limit switch, a photo switch, or the like.

Reference numerals 196 and 168 denote cloth receiving plates 160 and
162 are cloth detection sensors respectively provided.

Reference numerals 200 and 202 denote chucks 86 and 8.
2 is a chuck opening / closing sensor provided in FIG.

Reference numerals 104 and 106 denote chuck rotation sensors provided on the rotary actuators 82 and 84, respectively.

Reference numerals 208 and 210 denote couplers 126 and 1.
28 is a coupler attachment / detachment sensor that detects the attachment / detachment state of the coupler.

Reference numeral 212 denotes a carrier member 54 provided between the first chain wheel and the second chain wheel.
Is a point A detection sensor for detecting whether or not the vehicle has passed.

Reference numeral 214 denotes a ninth chain wheel 46.
And a tenth chain wheel 48, which is a point B detection sensor that detects whether the carrier member 54 has passed.

Reference numeral 216 indicates that the carrier member 54 is
Whether or not it has come to a position where
Reference numerals 6 and 128 denote point C detection sensors for detecting whether or not they have reached positions (hereinafter referred to as point C) that can be connected to the docking members 106 and 108, respectively. The C point detection sensor 216 is provided in a pair on the left and right sides of the couplers 126 and 128, respectively, and outputs a signal when the docking members 106 and 108 respond thereto. C point detection sensor 216
However, unlike other sensors, a pair of left and right is provided,
If the positions of the docking members 106 and 108 are not confirmed on the left and right, respectively, the movements of the couplers 126 and 128 are independent, and the docking between the connection recess and the connection protrusion may shift.

Reference numeral 218 denotes a cloth removal sensor provided near the point A detection sensor 212, which detects whether or not the cloth W has been removed and moved with the carrier member 54.

Reference numeral 222 denotes an operation unit of the control unit 194. The operation unit 222 operates an operation command of the apparatus and the rotation speed of the tenter motor 16 of the pin tenter 4.

(8) Operation for Removing Cloth by Chuck The operation for removing the cloth W from the pin 14 by the chuck 86 will be described below (see FIGS. 5 to 7).

The cloth W conveyed in the spread state to the tenter rail 10 rises upward along the inclined surface 160a of the cloth receiving plate 160 and reaches the position of the horizontal plane 160b. Then, it reaches the position of the chuck 86 in the opened state (see FIG. 5).

The cloth detection sensor 196 detects that the cloth W has come to the position of the chuck 86, closes the grip 86 b of the chuck 86 by the rotary actuator 82, and moves the tip of the cloth W to the cloth detection sensor. 196 detects that the cloth W has come to the position of the chuck 86, and the rotary actuator 82
With the b closed, the tip of the cloth W is grasped (see FIG. 6).

When the chuck 86 grips the cloth W, the rotary actuator 82 rotates the chuck 86 upward.
In the state where the cloth W is rotated upward, the cloth W is pulled upward, and the cloth W is removed from the pin 14 (see FIG. 7).

Note that a motor may be used instead of the rotary actuator 82.

(9) Structure for Moving Chuck in Left and Right Direction Hereinafter, a structure for moving the chucks 86 and 88 in the left and right direction will be described.

When conveying the cloth W, the width of the pair of tenter rails is changed according to the width of the cloth W. Therefore, it is necessary to move the positions of the chucks 86 and 88 for removing the cloth W accordingly. Especially chuck 8
Since the positions 6, 88 need to be provided in the vicinity of the pin 14, the adjustment is delicate. The screw rods 66, 68 are rotated by the width adjusting motor 150 via the crank rods 78, 146. When the screw rods 66, 68 rotate, the moving members 70, 72 move symmetrically along the linear rails 60, 62. As a result, the chucks 86 and 88 move. In this case, the moving distance is detected by a rotary encoder 148 connected to the width adjusting motor 150. The signal output from the encoder 148 is
Then, the moving distance is determined.

(10) Control of Line Speed The control of the line speed will be described separately below.

A normal line speed at which the heat treatment is performed in the heat treatment machine 5 (hereinafter, referred to as a normal speed) is 10 m /
Most are more than a minute. However, when the drawer 6 removes the cloth W and guides the cloth W to the swing-down apparatus 8, the cloth W may not be removed properly because the normal speed is too fast.
Therefore, in the case of performing the cloth removal operation, the control unit 194 performs control to reduce the line speed from the normal speed to a line speed of 10 m / min or less (hereinafter, referred to as the cloth removal speed).
Go to 02. If the normal speed is 10 m / min or less, the line speed is maintained.

Meanwhile, the line speed is the transport speed of the cloth W as defined above, and
The speed of the endless chain 52 (hereinafter referred to as the chain speed) is determined by the chain motor 220. In addition, each guide roller 22, 24, 26, 28 and each chain wheel 30, 3
Chain speeds and line speeds can be controlled independently since 2, 36, 38 are coaxial but can be driven independently. Then, as is clear from FIG.
The travel distance of the cloth W (the distance shown by the solid line in FIG. 2) and the travel distance of the carrier member 54 (the distance shown by the one-dot chain line in FIG. 2) differ from the cloth removal position to the swing-down position. If the line speed and the chain speed are the same, the cloth W having a short running distance will be slackened. When the cloth W is loosened, the cloth W gets caught in the guide rollers 22, 24,. To solve this, if the line speed is set higher than the chain speed, useless tension acts on the cloth W or the cloth W comes off the carrier member 54.

Therefore, the drawer 6 performs the line speed following torque control with respect to the line speed and the chain speed. The control will be described below with reference to FIG.

Reference numeral 304 denotes a pulse oscillator for detecting the rotation speed of the cloth transport motor 302, and outputs a signal to the pulse train converter 306.

Reference numeral 308 denotes a torque amount setting device. The amount of torque set by the torque amount setting device 308 is determined by the type of the cloth W to be conveyed.

Reference numeral 310 denotes a driver circuit of the chain motor 220, which receives a speed signal and a torque signal from the pulse train converter 306 and the torque amount setting device 308, respectively. In addition. The driver circuit 310 includes a control unit 196
Is also connected.

Next, a control method will be described.

When the cloth W is gripped by the carrier member 54, the torque of the chain motor 220 is always controlled to a constant value by the torque signal from the torque setting unit 310. Regarding the rotation speed (chain speed), the pulse oscillator 3
04, a speed slightly higher than the line speed is controlled by a speed signal from the pulse train converter 306. In a state where the cloth W is disengaged from the carrier member 54, if the torque amount is constant, the chain motor 220 rotates at a high speed. Is controlled so that the rotation speed does not increase more than a certain value. Therefore, the chain speed is slightly higher than the line speed until the cloth W is removed, and after the cloth W is removed, the line speed and the chain speed are controlled independently.

By this torque control, the tension of the cloth W between the guide rollers is always constant even when the line speed changes, and the cloth W is loosened, unnecessary tension acts on the cloth W, or the cloth W It does not come off the member 54. When the line speed changes, the chain speed also changes accordingly, so that the cloth W can be smoothly transported. Further, after the cloth W is removed, the carrier member 54 moves at the maximum chain speed, and does not reach a higher speed, and is safe.

After the cloth W is removed, the chain speed may be simply controlled without performing torque control.

If the carrier member 54 does not stop at the point C where the cloth W can be gripped, the coupler 12
6 and 128 cannot be connected to the docking members 106 and 108, respectively. Therefore, when approaching the point C, the control unit 194 controls the chain motor 220 to reduce the maximum chain speed to a chain speed of about 2 to 3 m / min (hereinafter referred to as a docking chain speed). This ensures that the carrier member 54 stops at the point C.

(11) Operation state of drawer device The operation state of the drawer device 6 will be described below based on the control unit 194 (see FIGS. 16 to 18).

In step 1, the operation of the operation section 222 starts the cloth removing operation at the cloth removing speed (the chain speed is also the same as the cloth removing speed). Then, pin tenter 4
Then, the cloth W is conveyed, and the process proceeds to step 2. Note that the chain speed is also controlled to be slightly higher than the cloth removal speed.

In step 2, it is detected whether or not the cloth W has been detected based on a signal from the cloth detection sensor 196 on the left side. If the cloth W has been detected, the process proceeds to step 3, otherwise, the state of step 2 Continue.

In step 3, the left chuck 86
And proceed to step 4.

In step 4, it is determined whether or not the cloth W has been gripped. If so, the flow proceeds to step 5, and if not, the flow returns to step 3.

In step 5, the chuck 86 is rotated upward by the rotary actuator 82, and the flow advances to step 6.

In step 6, it is detected from the signal of the chuck rotation sensor 204 whether or not the chuck 86 has rotated. If the chuck 86 has rotated, the process proceeds to step 7, otherwise returns to step 5.

In step 7, the coupler 126 is removed, and the rail width change command and the encoder input are invalidated. Then, the process proceeds to Step 8.

In the right chuck 88, the same determination as in step 2 to step 7 is made, and the process proceeds to step 8. Note that the left and right controls are performed independently because it is assumed that the web W is not symmetrically stretched on the pin tener 4.

In step 8, the couplers 126, 12
8 and if these are removed, go to step 9
Otherwise, return to step 7.

In step 9, the chain motor 22
0 is driven. Then, the process proceeds to step 10.

In Step 10, the carrier member 56
Starts moving. Then, the process proceeds to step 11.

In step 11, the point A detection sensor 212 detects whether or not the carrier member 56 has passed point A. If so, the flow proceeds to step 12, otherwise returns to step 11.

In step 12, the cloth removal sensor 21
8, the cloth W is detached from the pins 14 and the carrier member 5
It is detected whether or not the sheet has been conveyed together with step S4. If the sheet has been removed, the process proceeds to step S13. Otherwise, the operation of step S12 is continued.

In step 13, the cloth receiving plate 160,
162 and the swing roll 50 are lowered, and the process proceeds to step 14.

At step 14, the carrier member 56
Moves to the position of the swing-down device 8, that is, the position of the shake-down bucket 7. Then, the process proceeds to step 15.

In step 15, the chucks 86, 8
8 is opened, and the holding of the cloth W is released in step 16. Then, the process proceeds to step S17. Note that up to this step, the chain speed is slightly higher than the line speed, but in subsequent steps, the chain speed is controlled independently as described above. Therefore, after removing the cloth W, the line speed is maintained at the cloth removing speed, and the chain speed becomes the maximum chain speed.

In step 17, when the mechanical valves 98, 104 have passed the position of the ridge 188, the chucks 86, 88 are in the closed state, and the process proceeds to step 18.

In step 18, the carrier member 56
Is detected by the point B detection sensor 214, and if so, the process proceeds to step 19; otherwise, step 18 is continued.

In step 19, the limit of the line speed which is the cloth removal speed is released, and the normal speed is set by the operation unit 222. This setting may be manual or automatic. Then, the process proceeds to step 20.

In step 20, the carrier member 5
6 approaches the point C, the maximum chain speed of the carrier member 56 is reduced to the docking chain speed. Then, the process proceeds to step 22. Note that the line speed is a normal speed.

In step 22, the carrier member 56
Is detected by the point C detection sensor, and if it has passed, the process proceeds to step 23; otherwise, the state of step 22 is continued.

In step 23, the coupler 126 is docked, and the flow advances to step 24. The coupler 12
8 is also the same.

In step 24, the encoder input and the rail width change command are made valid. Then, the process ends.

As described above, the cloth W conveyed by the pin tenter 4 can be automatically removed from the pins 14 and conveyed to the shake-off device 8, so that work efficiency can be improved.

[B] Second Embodiment of Carrier Member Next, the carrier member 54 of the second embodiment will be described with reference to FIG.
0 will be described based on the perspective view.

The carrier member 5 according to the present embodiment and the first embodiment
The difference from the fourth embodiment lies in the structure for moving the chucks 86 and 88. That is, the chucks 8 are attached to the moving members 70 and 72.
Air cylinders 224 and 226 that move up and down 6,88 are provided.

Thus, after the chucks 86 and 88 grip the cloth W, the air cylinders 224 and 226
6,88 is moved upward. The cloth W is detached from the pins 14 by this upward movement.

[C] Third Embodiment of Carrier Member Next, the carrier member 54 of the third embodiment is shown in FIG.
A description will be given based on a perspective view of FIG.

At the center of the carrier member 54, a pair of left and right chucks 86 and 88 are provided. A take-out device 228 for removing the pair of left and right cloths W is provided inside the pair of left and right tenter rails 10.

The detaching device 228 includes a pair of upper and lower guide belts 230 and 232, and is disposed so as to be more upward toward the rear. The lower guide belt 232 is a drive belt and is connected to the torque control motor 233. The upper guide belt 230 is a passive belt. Then, the lower guide belt 232 travels at the same speed as the traveling speed of the cloth W, and is always driven with the same torque.

By pulling up the cloth W between the pair of upper and lower guide belts 230 and 232, the cloth W can be removed from the pins. The front end of the cloth W removed by the guide belts 230 and 232 reaches the positions of the chucks 86 and 88 and is gripped by these, and moves together with the carrier member 54.

When the detaching device 228 is used, unlike the first embodiment and the second embodiment, even if the width of the tenter rail 10 changes, the removing device 228 changes together therewith, so that the cloth W is always removed. In this case, it is not necessary to change the positions of the chucks 86 and 88 in the left-right direction. Further, since the cloth W is sandwiched between the belts, the cloth W is not damaged. Further, the lower guide belt 232
Is always driven with the same torque, so that even when overfeeding the cloth W to increase the amount of cloth supplied, the cloth W can be pulled upward with the cloth W sandwiched between the guide belts 230 and 232.

In this embodiment, the lower guide belt 232 is a drive belt and the upper guide 230 is a passive belt. However, the lower guide belt 232 is a passive belt and the upper guide belt 230 is a drive belt. It may be a belt.

Also, instead of the upper guide belt 230,
As shown in FIG. 22, a pulling roller 236 may be used.

[D] Another Embodiment of Web Transfer Apparatus In any of the above embodiments, the pin tenter 4
And the drawer 6 used in combination with the cloth W
The structure of the carrier member 54 can be used even when the cloth W is simply removed from the pin tenter 4 without using the drawer 6.

The present invention is not limited to the case where the cloth W is removed from the pin tenter 4, but can also be used when the tip of the cloth W conveyed by a conveyor or a roller is gripped by gripping means (for example, a chuck). In this case, if a cloth guide plate for guiding the tip of the cloth W to the gripping means is provided in the transport path, the cloth W can be gripped more reliably.

[0161]

According to the first aspect of the present invention, the gripping portion provided at the transfer end position of the pin tenter for gripping the leading end of the web grips the leading end of the web transported by the pin tenter. The web is removed from the pins by moving the section. As described above, the work of removing the web from the pin by the operator's hand is not required, and the work efficiency is improved.

In the web transport device according to the second aspect,
The gripping means provided on the holding member grips the leading end of the web conveyed from the pin tenter, and the removing means moves the gripping means to remove the web from the pin. Thereafter, the driving means moves the pair of endless chains along the guide chain wheel portion. Thus, the web held by the holding member is transported between the guide roller groups. As described above, there is no need to remove the web from the pins by the operator's hand, and the work efficiency is improved.

In the web transfer device according to the third aspect,
After the gripper grips the leading end of the web, the reversing means, which is a removing means, rotates the gripper upward about the rotation axis.
By rotating the gripping portion upward, the web can be reliably removed from the pin.

According to the web transport device of the fourth aspect, the moving means removes the web from the pin tenter by moving the gripping portion gripping the leading end of the web upward. Thus, the web can be reliably removed from the pin.

According to the web transport apparatus of the present invention, the pair of gripping portions provided on the left and right sides are moved to the positions where the pins of the pin tenter are provided according to the width of the web to perform the removing operation. Do. The work of removing the web from the pin must be performed in the vicinity of the pin because it is necessary to prevent the breakage of the web and to surely transmit the web removing force to the portion of the web where the pin is inserted. However, if the position of the gripping portion is fixed, if the width of the web changes, the location of the web where the pin touches also changes, and the removal operation may not be performed properly. Therefore, as described above, the pair of gripping portions are moved according to the width of the web to reliably perform the removing operation.

According to the web transport device of the present invention, the web is sandwiched between a pair of upper and lower guide belts provided at the web transport end position, and is pulled upward. The web is removed from the pin by this pulling operation. As described above, there is no need to remove the web from the pins by the operator's hand, and the work efficiency is improved.

[0167] In the web transfer device of claim 7,
The web is sandwiched between a pair of upper and lower guide belts provided at a position where the web has been conveyed, and is pulled up. The web is removed from the pin by this pulling operation. Thereafter, the driving means moves the pair of endless chains along the guide chain wheel portion. Thus, the web held by the holding member is transported between the guide roller groups.
As described above, there is no need to remove the web from the pins by the operator's hand, and the work efficiency is improved.

[0168] In the web transfer device according to the eighth aspect,
While the transport device is transporting the web, the line speed of the pin tenter is reduced by the control means to reliably remove the web from the pins.

According to the ninth aspect of the present invention, when the holding means provided on the holding means removes the web from the pin tenter, the supply means is attached to the holding means to supply the driving energy. After the web is removed, the supply means is removed because the holding means is moved by the guide chain wheel. This eliminates the need to attach a member for supplying drive energy to the holding means, simplifies the structure, and facilitates maintenance.

According to the web transport apparatus of claim 10,
When the gripping means for gripping the leading end of the web is moved by the moving means and reaches the transport end position, the gripping state of the gripping means is released by the releasing means and the web is removed. Thus, the web can be automatically removed without relying on humans.

In the web transport apparatus according to the eleventh aspect , the web is sandwiched between the guide belt provided at the web transport end position and the pull-up roller and pulled upward. The web is removed from the pin by this pulling operation.
Thereafter, the driving means moves the pair of endless chains along the guide chain wheel portion. Thus, the web held by the holding member is transported between the guide roller groups. As described above, there is no need to remove the web from the pins by the operator's hand, and the work efficiency is improved.

The web transport device according to the twelfth aspect holds the web with a chuck. Therefore,
The web can be securely gripped.

In the web transport apparatus according to the thirteenth aspect , the web is sandwiched between the guide belt provided at the web transport end position and the pull-up roller and pulled up. The web is removed from the pin by this pulling operation.
As described above, there is no need to remove the web from the pins by the operator's hand, and the work efficiency is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a drawer according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the drawer.

FIG. 3 is a front view of a carrier member.

FIG. 4 is a rear view of the carrier member.

FIG. 5 is an enlarged longitudinal sectional view of a main part showing a state in which a cloth is transported to a position of a chuck.

FIG. 6 is an enlarged vertical cross-sectional view of a main part in a state where the chuck grips the cloth.

FIG. 7 is an enlarged longitudinal sectional view of a main part showing a state in which the chuck is rotated upward while holding a cloth.

FIG. 8 is a perspective view showing a state where the coupler and the docking member are docked.

FIG. 9 is a plan view showing a state where a coupler and a docking member are detached.

FIG. 10 is a longitudinal sectional view of the connection box in a state where rotation of the screw rod is prevented.

FIG. 11 is a longitudinal sectional view of the connection box in a state where the screw rod can be rotated.

FIG. 12 is a perspective view of a fifth chain wheel.

FIG. 13 is an air piping diagram of a carrier member.

FIG. 14 is a block diagram of the drawer.

FIG. 15 is a block diagram of a chain motor and a cloth transport motor.

FIG. 16 is a first flowchart of a state in which a cloth removing operation is performed.

FIG. 17 is also a second flowchart.

FIG. 18 is also a third flowchart.

FIG. 19 is an overall system diagram for processing cloth.

FIG. 20 is a perspective view of a carrier member according to the second embodiment.

FIG. 21 is a perspective view of a carrier member according to a third embodiment.

FIG. 22 is a side view of a carrier member using a pull-up roller in the third embodiment.

[Explanation of symbols]

 W ... cloth 4 ... pin tenter 6 ... pull-out device 8 ... swing-down device 10 ... tenter rail 16 ... tenter motor 14 ... pins 22, 24, 26, 28 ... guide rollers 30 to 46 ... chain wheels 52 … Endless chain 54… Carrier member 56… Frame 58… Connection member 60, 62… Linear rail 64… Gear box 66, 68… Screw rod 82, 84… Rotary actuator 86, 88… Chuck 94, 96 Solenoid valve 98, 100 Mechanical valve 98a Mechanical switch 106, 108 Docking member 126, 128 Coupler 150 Motor for width adjustment 186 Disk 188 Convex Article 194 Control part 220 Chain motor 302 Cloth transport motor 304 The pulse generator 308 ...... torque amount setter

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-300051 (JP, A) JP-A-4-55251 (JP, A) Actually open 1983-887893 (JP, U) Actually open 1- 180455 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) B65H 20/16 B65H 45/00

Claims (13)

(57) [Claims] 1. A pin planted on a pair of tenter rails,
A web transport device for removing a web from a pin tenter that transports the web in a spread state by attaching both ears of the web, comprising: a web detection unit provided at a transport end position of the pin tenter; and a gripper that can be opened and closed. When the detection unit detects a web, the grip unit closes the grip unit and grips the front end of the web, and pulls the web gripped by the grip unit upward,
A web transport device, comprising: a removing unit configured to move the gripping unit upward to remove the web from the pin. 2. A pin implanted in a pair of tenter rails,
What is claimed is: 1. A web transporting device arranged on a carry-out side of a pin tenter for transporting a web in a spread state with both ears attached thereto, comprising: a swinging-down means swingably suspended above an upper portion of the transporting device; A guide roller group consisting of a plurality of guide rollers for guiding the web to the dropping means, a guide chain wheel group consisting of a pair of guide chain wheels provided at both ends of the plurality of guide rollers, and a pair of return chain wheel groups, An endless chain composed of a pair of belts or chains respectively laid over the pair of guide chainwheel groups and the pair of return chainwheel groups; driving means for driving the pair of endless chains; and the pair of endless chains A holding member provided between the holding member, gripping means for gripping a front end of a web provided on the holding member, and the gripping hand. Web conveying apparatus characterized by comprising further a removal means to remove moved the web from the pin. 3. The web according to claim 1, wherein the detaching means comprises a reversing means for rotating the gripping means upward about a rotation shaft provided above the gripping means. Transport device. 4. The apparatus according to claim 2, wherein said removing means comprises a moving means for moving said gripping means upward. 5. A method according to claim 1, wherein a pair of gripping means are provided on both right and left sides of the web transport path, and width adjusting means for moving the pair of gripping means symmetrically in the width direction of the web is provided. The web transport device according to claim 1 or 2. 6. A pin planted on a pair of tenter rails,
What is claimed is: 1. A web transport device for removing a web from a pin tenter that transports the web in a spread state by attaching both ears of the web, comprising: a web detecting unit provided above a transport end position of the pin tenter; And a pair of upper and lower guide belts provided at a web transfer end position, wherein the web is sandwiched between the guide belts. 3. The web transport device according to claim 2, wherein the web transport device is moved up to the gripping means. 7. A pin planted on a pair of tenter rails,
What is claimed is: 1. A web transporting device arranged on a carry-out side of a pin tenter for transporting a web in a spread state with both ears attached thereto, comprising: a swinging-down means swingably suspended above an upper portion of the transporting device; A guide roller group consisting of a plurality of guide rollers for guiding the web to the dropping means, a guide chain wheel group consisting of a pair of guide chain wheels provided at both ends of the plurality of guide rollers, and a pair of return chain wheel groups, A pair of endless chains respectively hung over the pair of guide chainwheel groups and the pair of return chainwheel groups, driving means for driving the pair of endless chains, and a bridge between the pair of endless chains. Holding member, a pair of upper and lower guide belts provided at a web transfer end position, and a tip of a web provided to the holding member Becomes more gripping means for gripping a web conveying apparatus characterized by moving to the gripping means Te pulled across the web between these guiding belts. 8. The web transport apparatus according to claim 1, further comprising control means for reducing the line speed of the pin tenter while the web is being transported by the transport apparatus. 9. A supply means for supplying driving energy such as air or electricity for driving said grip means to said grip means provided on said holding means, said supply means being detachable from said holding means. 8. The web transport device according to claim 1, wherein the web transport device comprises: 10. The web transport device according to claim 1, further comprising a release unit configured to release a gripping state of the grip unit provided at a transport end position of the moving unit. 11. A web transport device arranged on a carry-out side of a pin tenter for transporting the web in a spread state by attaching both ear portions of the web to pins implanted on a pair of tenter rails. A swinging means suspended swingably, a guide roller group including a plurality of guide rollers for guiding the web to the swinging means, and a pair of guide chain wheels provided at both ends of the plurality of guide rollers. And a pair of endless chains respectively hung over the pair of guide chainwheel groups and the pair of return chainwheel groups, and driving the pair of endless chains. Drive means, a holding member provided between the pair of endless chains, and a guide belt provided at a web transfer end position. A pulling roller provided above the guide belt; and gripping means for gripping a leading end of a web provided on the holding member. The web is pulled up between the guide belt and the pulling roller. A web transport device, wherein the web transport device is moved to a gripping means. 12. The apparatus according to claim 1, wherein said gripping means is a chuck.
Claim 5, Claim 6, Claim 7, Claim 9, Claim 1
The web transport device according to claim 11 or 12, 13. A web transport device arranged on a carry-out side of a pin tenter for transporting in a spread state by attaching both ears of a web to pins planted on a pair of tenter rails, wherein the web transport device is provided at a web transport end position. A web transport device, comprising: a guide belt provided; and a pull-up roller provided above the guide belt, wherein the web is pulled up with a web interposed between the guide belt and the pull-up roller.