JPH0335168B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for binding objects to be bound in which the objects wrapped with a binding tape can be taken out in front of an operator, and a method for binding objects to be bound for use in the binding method. It is related to the device.

Conventionally, as disclosed in, for example, Japanese Utility Model Application Publication No. 57-6704, binding of the objects has been done by moving the clamping device and the crimping device relatively apart and approaching each other and wrapping the binding tape around the objects to be bound. Methods for doing so and binding devices used therefor are known. By the way, in this conventional method and device, immediately after winding the binding tape around the object to be bound and crimping and cutting both winding ends of the binding tape, the cut end of the newly formed binding tape is transferred to the clamping device. When the binding tape is held between the crimping device and the crimping device as they move away from each other, the binding tape becomes a hindrance to the binding. The worker cannot remove the bound objects towards the front side of the worker, and tries to remove the bound objects towards the opposite side or sideways, but this reduces the movement of the worker's arms. This has the drawback of increasing the size and increasing the workload of the operator. Especially when binding long objects,
Since it is long, it is difficult to remove it laterally, which further increases the workload of the worker.

Also, Special Publication No. 52-42689 and Special Publication No. 55-
For example, Japanese Patent No. 107613 discloses a binding machine for binding grape vines on a grape trellis. This binding machine first wraps the binding tape around the grape vines with the binding tape stretched between the clamping device and the crimping device.
a second step of crimping and cutting the wound binding tape; and a second step of releasing the clamping device after the crimping and cutting, separating the clamping device and the crimping device, and evacuating the bound grape vines. Step 3, and a fourth step in which the clamping device and the crimping device are brought close together, the cut end of the tape is clamped by the clamping device, and the binding tape is wrapped between the clamping device and the crimping device, and the tape is bound. It's becoming like that. However, in this binding machine, the operator repeatedly grips the control lever using the grip force of his/her hand and releases this grip, thereby separating the clamping device and the crimping device from each other, and performs the above four steps. . However, since this binding device is operated by the grip force of the operator's hand, there is a limit to the distance between the clamping device and the crimping device, and there is a problem that large bundles of objects cannot be bound.

It is an object of the present invention to provide a binding method and use for the method that allows the bundled items to be taken out to the front side after the binding of the items, and also enables binding of large bundles of items. The object of the present invention is to provide a binding device that does the following.

The binding method according to the present invention and the binding device used therein will be explained below with reference to the drawings.

FIGS. 1 to 6 are for explaining the steps of the binding method according to the present invention.
In the figures, 1 is a clamping device, and 2 is a crimping device. Here, the clamping device 1 is configured to reciprocate within an arc PQ range centered on a point O, and the crimping device 2 is configured to reciprocate within an arc ST range centered around a point R. The clamping device 1 includes a clamping arm 3 as a clamping means and a mounting table 4.
A clamping arm 3 and release maintaining means 5 for maintaining the release state are provided. 1 to 6, the clamping arm 3 and release maintaining means 5 are shown.
The configuration is shown conceptually, and its detailed configuration is omitted. The pressure bonding device 2 is provided with a guide roller 6, a clamping roller 7, a cutting blade 8, a pressure bonding plate 9, and a release means 10 for releasing the release maintenance of the release maintenance means 5. Binding tape 11
includes a guide roller 6, a clamping roller 7, and a release means 10.
The cut end portion 13 thereof is held by a holding arm 3 via a guide roller 12 forming a part of the holding arm 3. Here, the binding tape 11 stretched between the clamping device 1 and the crimping device 2 is configured to extend obliquely downward from the clamping device 1 toward the crimping device 2, and is close to the bottom surface 14 of the mounting table 4. It is configured to do this. A normally open limit switch 15 is installed at the bottom of the mounting table 4, and the limit switch 15 is closed when the object 16 to be bound is placed on the mounting table 4. This limit switch 15 is for driving the crimping device 2, and this crimping device is driven in a direction toward the clamping device 1 from the standby position shown in FIG. FIG. 1 shows a state in which the cut end portion 13 is clamped by the clamping device 1 and before the object to be bound 16 is brought into contact with the binding tape 11 stretched between the clamping device 1 and the crimping device 2. FIG. 2 shows that the objects 16 to be bound are placed on the mounting table 4 so that the objects 16 can be bound. The period up to is the first step of the binding method according to the present invention.

A normally open limit switch 17 is engaged with the crimping device 2 in the standby state, and this limit switch 17 is for driving the clamping device 1. A normally closed limit switch 18 for stopping the drive is facing the clamping device 1. The crimping device 2 is provided with a reversing normally open limit switch 19 which engages the crimping device 2 when it is in the crimping position. The limit switch 18 for stopping the drive has the function of stopping the reciprocating motion of the clamping device 1 after one reciprocation, and as shown in FIG. 6, when the clamping device 1 is in the waiting position of the crimping device 2, , normally open limit switch 2 for reversing
0 is available for engagement.

In FIG. 3, the starting limit switch 15 is closed, the crimping device 2 is driven in the direction approaching the clamping device 1, the binding tape 11 is wound around the object 16, and the clamping device 1 and the crimping device 2 are shown in which both ends of the bundle 11 wound around the object 16 are crimped and cut, and FIG. After crimping and cutting both winding ends of 11, the crimping device 2 is shown returning to the standby position, and the clamping arm 3
is shown in a state where it is maintained in the released state by the action of the release maintaining means 5. From this figure 3 to 4
During the period shown in the figure, the clamping device 1 and the crimping device 2 are brought relatively close to each other, and both winding ends of the binding tape 11 wound around the object 16 which is ready to be bound are In addition to crimping and cutting, a second step involves relatively separating the clamping device 1 and the crimping device 2 and retracting the cut end of the newly formed binding tape 11 from the clamping device 1. In addition, Fig. 4,
In FIG. 5, reference numeral 21 indicates this newly formed cut end.

FIG. 5 shows a state in which the object 16 wrapped with the binding tape 11 is removed after cutting, and the binding tape 11 is not stretched between the clamping device 1 and the crimping device 2. Since this state is realized, the object to be bound 16 around which the binding tape 11 is wound can be removed to the front side. This is the third step of the binding method according to the present invention.

In FIG. 6, the clamping device 1 is driven in the direction approaching the crimping device 2, and the release maintenance of the release maintaining means is released by the action of the release means 10, and the clamping arm 3 is newly formed. Binding tape 11
A state in which the cut end portion 21 of the
The period from FIG. 5 to FIG. 6 is the clamping device 1.
In the fourth step, the cut end portion 21 of the newly formed binding tape 11 is clamped by bringing the crimping device 2 and the crimping device 2 relatively close to each other.

After the clamping device 1 clamps the cut end 21 of the newly formed binding tape 11, it is driven in reverse by the action of the limit switch 20, separates from the crimping device 2, and returns to the crimping position shown in FIG. do. During the period from FIG. 6 to FIG. 1, the clamping device 1 and the crimping device 2 are relatively separated, the binding tape 11 is pulled out, and the binding tape 1 This is the fifth step of multiplying the

Next, the configuration of the binding device used in the binding method according to the present invention will be explained.

Here, a binding device that is applied to long objects to be bound is shown, and a binding device that can bind long objects at two locations in the longitudinal direction is shown. FIG. 7 is a front view of this binding device as viewed from the front in the working direction, and FIG. 8 is a side view of the binding device shown in FIG. 7. This figure 7,
In FIG. 8, 22 is a base. This base 2
2, as shown in FIG. 7, a machine frame 23 and a machine frame 24 are erected at regular intervals. The machine frame 23 is provided with bearings 25 and 26 at regular intervals in the vertical direction.
4, there are bearings 2 at regular intervals in the vertical direction.
7 and a bearing 28 are provided. Bearing 25
A rotation shaft 29 is spanned between the bearing 27 and the bearing 27, and a rotation shaft 30 is spanned between the bearing 26 and the bearing 28.

31 is a rotational drive mechanism for the rotation shaft 29;
is a rotational drive mechanism for the rotation shaft 30. The rotational drive mechanism 31 is roughly composed of a drive motor 33, a drive gear 34, and driven gear teeth 35. The drive motor 33 is fixed to the machine frame 23, and the drive gear 3
4 is connected to an output shaft 36 of a drive motor 33 via a key 37. The driven gear tooth 35 is the rotation shaft 29
The rotation of the drive motor 33 is transmitted to the rotating shaft 29 via a drive gear 34 and driven gear teeth 35. Since the configuration of the rotational drive mechanism 32 is the same as the configuration of the rotational drive mechanism 31, the same components as those of the rotational drive mechanism 31 are given the same reference numerals, and the explanation thereof will be omitted.

39 is a rotation angle setting mechanism for setting the rotation angle of the rotation shaft 29, and 40 is a rotation angle setting mechanism for setting the rotation angle of the rotation shaft 30. The rotation angle setting mechanisms 39 and 40 include a solenoid 41 and links 42 and 4, as shown enlarged in FIGS. 9 and 10.
2, a seesaw arm 43, a bearing plate 44, and a cam 45. solenoid 4
1 is fixed to the machine frame 24, and its lock 4
6 is connected to one end of the link 42 by a pin 47, and one end of the seesaw arm 43 is connected to the
The other end of the link 42 is connected by a pin 48. The bearing plate 44 is adjustable and fixed to the machine frame 24, and the seesaw arm 43 is swingably attached to the bearing plate 44. An engagement roller 49 is rotatably attached to the other end of the seesaw arm 43. Machine frame 24
and seesaw arm 43, pins 50 and 51 are installed respectively, and these pins 50 and 51
A spring 52 is stretched between the seesaw arm 43 and the engagement roller 49 of the seesaw arm 43 that connects to the cam 45.
is biased in the direction of abutting against. The cam 45 is
It is connected to the rotation shafts 29 and 30 via a key 53 so as to rotate together with the rotation shafts 29 and 30. The cam 45 has a substantially circular shape, and an engagement groove 54 that engages with the engagement roller 49 is formed on its outer periphery. Two clamping devices 1 are provided on the rotating shaft 29 at regular intervals in the longitudinal direction, and two crimping devices 2 are provided on the rotating shaft 30 at regular intervals in the longitudinal direction. The engagement roller 49 on the crimping device side is connected to the crimping device 2.
is engaged with the engagement groove 54 on the binding device side when the clamping device 1 is in the crimping position shown in FIG. When the device 2 is in the standby position, it engages with an engagement groove 54 on the clamping device side. The solenoid 41 is driven while the engagement roller 49 is in sliding contact with the peripheral surface 55 of the cam 45 excluding the engagement groove 54, and in FIG. A limit switch 56 that potentially controls this solenoid 41 is shown.

Solenoid 41 and engagement roller 4 on the side of clamping device 1
9 and the cam 45 have a function of accurately stopping the clamping device 1 at that position against the rotational inertia of the drive motor 33 when the clamping device 1 reaches the clamping position and when it reaches the waiting position. The solenoid 41, engagement roller 49, and cam 45 on the crimping device 2 side operate the crimping device 2 by rotating the drive motor 33 when the crimping device 2 reaches the crimping position and when it reaches the standby position. It has the ability to resist inertia and stop accurately at that position.

Rotating shafts 57 and 58 are spanned between the machine frames 23 and 24 at their rear parts. 59 and 60 are its bearings. 61 and 62 are reciprocating mechanisms.
The reciprocating mechanism 61 includes a reciprocating plate 63, a link 64,
The reciprocating mechanism 62 includes a reciprocating plate 66, a link 67, and a link 65.
It is roughly composed of 8. One end of the link 64 is attached to the rotating shaft 29, and the other end is attached to the reciprocating plate 61 via a pin 69. One end of the link 65 is attached to the rotating shaft 57, and the other end is attached to the reciprocating plate 6 via a pin 70.
It is installed on 1. One end of the link 67 is attached to the rotation shaft 30, and the other end is attached to the pin 71.
It is attached to the reciprocating plate 66 via. Link 6
8 is attached to the rotating shaft 58 at one end, and attached to the reciprocating plate 66 via a pin 72 at the other end. A clamping device 1 is attached to the reciprocating plate 63, and a crimping device 2 is attached to the reciprocating plate 66. The clamping device 1 is reciprocated between the circular arcs PQ shown in FIGS. 1 to 6 by the reciprocating movement of the reciprocating plate 63, and the crimping device 2 is reciprocated by the reciprocating movement of the reciprocating plate 66. This allows reciprocating movement between the circular arcs ST shown in FIGS. 1 to 6.

Figures 11 and 12 show the clamping device 1 and the crimping device 2.
The clamping device 1 has a pair of support plates 73 and 74. This support plate 73,
74 is fixed to the reciprocating plate 63. Support plate 73
A pin 75 is spanned between and 74, and the clamping arm 3 is configured to rotate about this pin 75 as a fulcrum. The clamping arm 3 has a dogleg shape and is composed of an upper arm 76 and a lower arm 77, and the upper arm 76 is composed of upper arm components 78, 78 as shown in FIG. A gripping rod 79 is stretched over this upper arm component. The clamping device 1 has a crimping surface 80 and a clamping surface 81. The clamping arm 3 is the 11th
As shown in FIG. 12, the clamping rod 79 is resiliently biased in the direction of abutting against the clamping surface 81 by a spring 83 attached to the pin 82.

The release maintaining means 5 is composed of a release arm mechanism 84 and a release arm maintaining mechanism 85. The release arm mechanism 84 is composed of a pin 85' that is stretched between the support plates 73 and 74, and a release arm 86 that rotates about the pin 85' as a fulcrum. The release arm 86 has a pair of upper arms 87, 87 and a pair of lower arms 88, 88. An engagement roller 89 is wrapped around the lower arm 88 . The engagement roller 89 faces the lower arm 77 so as to be able to come into contact with it, and a stopper pin 90 is installed on the support plates 73 and 74, and the lower arm 88 faces the stopper pin 90 so that it can come into contact with it. Release arm 8
6 is resiliently biased by a spring 83 via the clamping arm 3, and its stopping position is determined by the stopper pin 90. The release arm maintaining mechanism 85 includes support plates 73, 7
The release maintaining member 92 rotates about the pin 91 as a fulcrum, and the spring 93 elastically biases the release maintaining member 92. This release maintaining member 92
has an engagement protrusion 94, an engagement maintenance surface 95, and a roller guide surface 96, and the release maintenance member 92
is provided in a direction in which its roller guide surface 96 comes into sliding contact with the roller 89 by a spring 93. Above the engaging protrusion 94, this engaging protrusion 94
One end of the abutting plate 97 facing the abutting plate 89 is integrally attached to the lower arm 77, and the release maintaining member 92 is supported by the spring 93.
It has the function of rotating in the opposite direction against the urging force of.

The crimping device 2 has a pair of support plates 89 and 99, and the support plates 98 and 99 are fixed to the reciprocating plate 66. These 98 and 99 have hanging plates 10
0 is fixed, and the crimp plate 9 is attached to this hanging plate 1.
It is attached to a spring 101 suspended from 00, and is movable up and down. The release means 10 is
A pin 102 spanned between the support plate 98 and the support plate 99, a pair of rotating arms 103 that rotate using the pin 102 as a fulcrum, and this rotating arm 1.
A stopper pin 105 is installed on the support plates 98 and 99, and the rotating arm 103 is urged in the direction of contacting the stopper pin 105. , rotation has stopped. A pair of release arms 103
The engaging pin 106 is spanned over the engaging pin 1.
06 is provided with a guide roller 12. The upper surfaces of the support plate 73 and the support plate 74 are connected to the engagement pin 10.
6 as an engagement surface 107, and this engagement surface 10
The middle portion of 7 is an inclined surface 108. When the crimping devices 2 approach the clamping device 1 while heading toward the crimping position, their support plates 98, 9
9 are adapted to engage the upper arm 87 of the release arm 86, so that when the clamping device 1 approaches the crimping device 2 while heading towards the clamping position, the upper arm 87 of the release arm 86 is released. It is adapted to come into contact with the engagement pin 106 of the arm 103.

The support plates 98 and 99 have a clamping roller support plate 11.
0,111 are provided. The clamping roller 7 is
Here, it is composed of clamping roller components 112 and 113. The clamping roller component 112 is rotatable about a pin 114, and
This pin 114 is connected to the clamping roller support plates 110 and 11.
1 and is adapted to be guided along a guide hole 115 formed in 1. The clamping roller component 113 is rotatably supported by a pin 116 extending between the clamping roller support plates 110 and 111. The clamping roller component 112 is biased in a direction in which it abuts against the clamping roller component 113 by a spring 117 stretched between the clamping roller support plate and the pin 114. Clamping roller component 1
12 has an engagement groove 118 formed in its circumferential direction, and the clamping roller component 113 has this engagement groove 118 formed in its circumferential direction.
An engaging protrusion 119 that engages with the binding tape 18 is formed to prevent the new cut end 21 formed after cutting from swinging in the thickness direction due to the influence of wind, etc. Moreover, the crease is formed from the middle portion of the binding tape in the width direction.

Returning to FIGS. 7 and 8, 120 is a binding tape rewinding mechanism. The binding tape rewinding mechanism 120 includes an upright plate 121 and a tape reel 1.
22, sprockets 123, 124, and a chain 125. Standing board 1
A support shaft 126 is rotatably supported on 21 . This support shaft 126 has a tape reel 122
and a sprocket 124 are integrally attached. The binding tape 11 is on the tape reel 122.
is installed. Sprocket 123 is fixed to pin 71. A chain 125 is stretched between the sprocket 123 and the sprocket 124, and the rotation of the sprocket 123 is transmitted to the sprocket 124 via the chain 125.
It is now being transmitted to A friction clutch 127 is attached to the spindle 126, a one-way clutch is provided on the tape reel 122, and the rotation of the sprocket 124 is controlled by the spindle 126.
6. The friction clutch 127 is adapted to be transmitted to the tape reel 122 via a one-way clutch. This tape reel 122 is connected to the crimping device 2
When the crimping device 2 is driven in the direction from the standby position to the crimping position, it is driven in the rewinding direction of the binding tape 11, and when the crimping device 2 is driven in the direction from the crimping position to the waiting position, Due to the presence of the one-way clutch, the friction clutch 127 is not rotationally driven.
It has the function of adjusting the tension of 1.

Next, the action of this tape rewinding mechanism will be explained in the 21st section.
This will be explained based on FIGS. 23 to 23.

Fig. 21 is a standby state diagram when the crimping device 2 is in the standby position, Fig. 22 is an intermediate state diagram when the crimping device 2 is in the middle of bundling, and Fig. 23 is a diagram when the crimping device 2 is in the crimping position. The crimping state diagram is shown in the 21st
In the figure, when links 67 and 68 rotate around point P', sprocket 123 fixed to link 67 rotates in the direction of arrow X, and sprocket 123 pivots around point P' of rotation center of link 67. As a result, a circular arc trajectory will be drawn. Crimping device 2
, while the links 67 and 68 rotate about 180 degrees, the sprocket 123 moves in an arc around the point P' from the waiting position shown in FIG. 21 to the crimping position shown in FIG. While drawing the trajectory, each tooth of the sprocket 123 that is not engaged with the chain 125 is connected to the chain spanning portion 125A located in front of the sprocket 123 in the direction of movement. The chain spanning portion 12 that exists behind the sprocket 123 in the direction of movement from the near side.
5B, the chain 125 is rotated in the direction of arrow Y as shown in FIGS. 21 to 23, and the sprocket 124
The rotation of the chain 125 is transmitted to the binding tape 11, and the binding tape 11 is rotated in the direction of unwinding the binding tape, so that the diameter ratio of the sprocket 123 and the sprocket 124 is set to 1:1, and the crimping device 2 is Q′ is the unwinding point when the crimping device 2 is in the crimping position, and the above unwinding point is the unwinding point when the crimping device 2 is in the crimping position.
The position of Q' is Q'', the rotation center of the stacked binding tape is Q, and the unwinding point Q' and the center Q are located
If the angle formed by Q″ is θ, link 67
While the binding tape 11 rotates 180 degrees, the laminated and wound binding tape 11 is rotated by an angle θ≒180 degrees, and the amount of unwinding is π/180×Rθ=π/180×R, where the radius of the binding tape 11 is R. ×180=πR.

Next, a sequence control circuit for controlling the operation of the binding device according to the present invention will be explained.

In FIG. 20, l ₁ , l ₂ , l ₃ , l ₄ , l ₅ , l ₆ are
Indicates a railway track, between track l ₁ and track l ₂ ,
A main switch SW is provided between _L4 and _L5 , and a normally closed relay X1, which will be described later, is installed between _L2 and _L3 , and between _L5 and _L6 . Contact X1b is connected. A self-resetting pushbutton PB1 and a relay X1 are provided in series between the track _l2 and the track _l5 , and the normally open contact X1a of this relay X1 is provided in parallel with the pushbutton _PB1 . A pilot lamp PL is provided between _l5 and the relay is activated when pushbutton PB1 is closed.
X1 is energized, normally open contact _X1a is _{closed ,} and _relay Each line has been cut off and an emergency stop has been made. Limit switch 15, normally closed contacts KPb of keep relays XPS and KPR, which will be described later,
The solenoid 41 on the crimping device 2 side is connected in series between the line 1 and the line 1, and the self-resetting push button PB2, the limit switch 56 on the crimping device 2 side, and the relay X2 are connected in series between the line ₃ and the line 1. ₆ , and the push button PB2 is connected to the solenoid 41 on the crimping device 2 side. The solenoid 41 on the crimping device 2 side is energized when at least one of the limit switch 15 and the push button PB2 is closed, so when the solenoid 41 on the crimping device 2 side is energized, the solenoid 41 on the crimping device 2 side The engagement roller 49 is connected to the crimping device 2
The crimping device 2 engages with the limit switch 56 on the side.
The limit switch 56 on the side is closed. Relay X2 connects the drive motor 3 on the crimping device 2 side.
3 in the forward rotation, and when the limit switch 56 on the crimping device 2 side is closed and the limit switch 15 on the crimping device 2 side and the normally closed contact KPb are in the closed state, or the push button PB2 is in the closed state. It is excited when the In addition,
The push button PB2 is used to drive the drive motor 33 on the crimping device 2 side in normal rotation regardless of whether or not the object 16 to be bound is placed. Limit switch 19, normally closed contact X5b of relay X5, which will be described later,
The relay X3 is connected in series between the line _L3 and the line _L6 , the normally open contact X3a of the relay X3 is connected in parallel to the limit switch 17, and the relay
Set keep relay KPS, timer relay T1,
A series circuit of the normally open contact T1a of the timer relay T1 and the relay X4 is connected in parallel, and a self-resetting push button PB3 is connected in series to the relay X4. Relay X3 is energized and self-maintained when limit switch 19 is closed and normally open contact X5b is closed, and set-keep relay KPS and timer relay T1 are energized at the same time as relay X3. set-keep relay
KPS is magnetized, the normally closed contact KPb is opened, the solenoid 41 on the crimping device 2 side is demagnetized, and the normally open contact KPa, which will be described later, is closed. Normally open contact T1a is timer relay T1
is closed after a predetermined time has elapsed after being energized, and relay X4 is energized at the same time as the normally open contact T1a is closed. There is. Note that the push button PB3 is used to excite the relay X4 regardless of whether the limit switch 19 is open or closed. Limit switch 17
and relay X5 is connected in series between line L ₃ and line L ₆ ,
Normally open contact X5a of relay X5 and set-keep relay
The normally open contact KPa of KPS, the normally closed contact X7b of relay X7 (described later), and the solenoid 41 on the clamping device 1 side are connected in series between the line _l3 and the line _l6 , and the self-resetting push button PB4 and the clamping device 1 The limit switch 56 and the relay X6 on the side are connected in series between the line _l3 and the line _l6 , and the push button PB4 is connected to the solenoid 41 on the side of the clamping device 1.
The solenoid 41 on the side of the clamping device 1 is a normally open contact.
It is excited when at least one of the series circuit consisting of X5a, KPa and the normally closed contact X7 and the push button PB4 is closed. The engaging roller 49 on the device 1 side engages with the limit switch 56 on the clamping device 1 side, and the limit switch 56 on the clamping device 1 side is closed.
Relay X6 drives the drive motor 33 on the clamping device 1 side in normal rotation, and when the limit switch 56 on the clamping device 1 side is closed, a series circuit consisting of normally open contacts X5a, KPa and normally closed contacts X7 is closed. It is excited when the push button PB4 is in the closed state or when the push button PB4 is in the closed state. limit switch 20
, limit switch 17 and relay X7 are track l ₃
and line _l6 , the normally open contact X7a of relay X7 is connected in parallel to limit switch 20, and relay X7 has a reset keep relay connected in parallel.
KPR, timer relay T2, and timer relay
A series circuit consisting of normally open contact T2a of T2 and relay X8 is connected in parallel, and a reset keep relay is connected in parallel.
When KPR is energized, normally closed contact KPb is closed,
The normally open contact KPa is the one that is opened, and the relay
X8 is for driving the drive motor on the clamping device 1 side in reverse, and is a self-resetting pushbutton PB5.
are connected in series.

Next, the operation of the binding device according to the present invention will be explained. When the objects to be bound 16 are placed on the mounting table 4, the limit switch 15 is closed and the drive motor 33 on the crimping device side is driven to rotate in the normal direction. This drive motor 3
3 is transmitted to the rotating shaft 30 via a driving gear 34 and a driven gear 35 shown in FIG. As the rotation shaft 30 rotates, the links 67, 68
is rotated counterclockwise in FIG. 8, and the reciprocating plate 66
is moved to the left, and pin 7
1 will be rotationally driven in the counterclockwise direction. By moving the reciprocating plate 66 leftward, the crimping device 2 is driven from its standby position to the crimping position. At this time, the pin 71 is rotated counterclockwise, so the rotation of the pin 71 is
It will be transmitted to the tape reel 122 via the sprocket 123, chain 125, and sprocket 124, and the tape reel 122 will be rotated in the rewinding direction. In this way,
The binding tape 11 is tightened around the object 16 to be bound, and in the state immediately before crimping as shown in FIG. Then, you will enter the crimping position. FIG. 14 shows the state immediately after the ends of both windings of the binding tape 11 wound around the object 16 are crimped. 2 slope 1
09 comes into contact with the release arm 86, the clamping arm 3 is rotated in a direction against the biasing force of the spring 83, the clamping rod 79 is separated from the clamping surface 81, and the cut end 13 of the binding tape 11 is released. Ru. that time,
The engagement roller 89 of the release arm 86 is guided toward the engagement maintenance surface 95 while sliding on the roller guide surface 96 of the release maintenance member 92, and the release arm 86 is held in a rotationally stopped state by the release maintenance member 92. will be maintained. Thereafter, the binding tape 11 is cut. When the crimping device 2 engages the limit switch 2 at the crimping position and the limit switch 19 closes, the drive motor 33 on the crimping device side switches on the timer relay T1.
Due to this action, the reverse rotation is driven after a predetermined period of time. By driving the drive motor 33 in the reverse direction, the crimping device 2 is separated from the clamping device 1 as shown in FIG. 15. At this time, the clamping arm 3 is maintained separated from the clamping surface 81 by the action of the release maintaining means 5. The newly cut end 21 formed after cutting is held by the clamping rollers 7 to maintain its position, and the pin 71 of the tape reel 122 rotates clockwise, but due to the presence of the one-way clutch, the tape reel 122 rotates clockwise. direction, and the binding tape 11 is not fed out.

When the crimping device 2 returns to its waiting position, the limit switch 17 is closed, the relay X5 is energized, the normally open contact K5b is opened, the drive motor 33 on the crimping device side is stopped, and the clamping device is The drive motor 33 on the device side is driven forward and backward, and the clamping device 1 is driven from its normal mounting position toward the clamping position. FIG. 16 shows that the clamping device 1 is driven from its crimping position to its clamping position;
Cut end 21 with newly formed clamping arm 3
The engagement pin 106 of the release arm 103 moves along the engagement surface 107 in the direction in which the inclined surface 108 exists as the clamping device 1 approaches the crimping device 2. It is moved by sliding.
This engagement pin 106 comes into contact with the upper arm 87 of the release arm 86 during its sliding movement, and the release arm 86 uses the pin 85' as a fulcrum and the 16th
It will be rotated counterclockwise in the figure. When the release arm 84 is rotated counterclockwise, the clamping arm 3 is rotated counterclockwise in FIG. 16 using the pin 75 as a fulcrum. The abutment plate 97 engages with the engagement protrusion 94, and the release maintaining member 92 resists the biasing force of the spring 93 and moves to the 16th position.
In the figure, the roller 89 is rotated clockwise about the pin 91 as a fulcrum, and the roller 89 is separated from the engagement maintaining surface 95.
The clamping arm 3 is rotated clockwise about the pin 75 in FIG. 16 due to the urging force of the spring 83. In this way, the clamping rod 79 is moved in the direction approaching the crimping surface 81, and the newly formed cut end 21 is removed from the clamping rod 7.
9 and the crimp surface 81. When the engagement rollers 106 of the release arms 103 reach the respective inclined surfaces 108,
8, it is separated from the upper arm 87.

FIG. 17 shows that the newly cut end 21 is attached to the clamping rod 2.
1 and the crimp surface 81. When the limit switch 20 is closed, the drive motor 33 on the clamping device side is driven in reverse after a predetermined period of time, and the clamping device 1 is moved to its clamping position. It will be moved from there toward the crimping position. that time,
The binding tape 11 is given tension,
In addition, since the binding tape 11 is pulled out downward at the initial stage of pulling out, the binding tape 11 can be easily pulled out.
Since the binding tape 11 is separated from the clamping roller component 113 against the urging force of 7, the binding tape 11 can be pulled out without being damaged. At the final stage when the clamping device 1 reaches the crimping position, the release arm 1
The guide roller 12 of 03 comes into contact with the binding tape 11, and an appropriate tension force is applied to the binding tape 11.

18 and 19 show an embodiment in which a bundling mechanism is attached to the bundling device according to the present invention,
The bundling mechanism 128 is roughly composed of a support plate 129, a rotary solenoid 130, an arc-shaped member 131, and a bundling spring 132. The rotary solenoid 130 is fixed to the support plate 129 with bolts 133, 133. has been done. The arcuate member 131 has a fastening bracket 134, which is connected to the output shaft 136 of the rotary solenoid 130 by a bolt 135. The spring 132 is the arc-shaped member 1
31, and the object to be bound 16
A rubber spring is used here as the spring 132 so as not to damage the spring 132. The rotary solenoid 130 is a limit switch 1
5 is turned on and driven, whereby objects 16 such as green onions are contracted and bundled.

The embodiment of the binding device according to the present invention has been described above, and the effects of this embodiment can be summarized as follows.

(1) The binding tape 11 is stretched toward the bottom surface of the mounting table 4, and when the object to be bound 16 is placed on the mounting table 4, the amount of pulling out of the binding tape 11 is small, so the pulling resistance of the binding tape 11 is reduced. is small, and the insertion resistance of the objects to be bound is reduced, making it possible to perform the mounting operation easily.

(2) Since the amount of pulling out of the binding tape 11 is small,
The difference in the amount of pull-out of the pair of left and right binding tapes 11 becomes relatively small, the meandering of the tape becomes relatively small, and the objects 11 to be bound can be securely bound.

(3) Since the cut end 21 of the binding tape 11 is grasped from below and pulled out downward, the binding tape 11 can be easily pulled out.

(4) Since the pair of binding tapes 11 can be pulled out by equal amounts on the left and right sides, the objects 16 to be bound can be reliably bound regardless of the worker's hard work.

(5) Since the rotation angle setting mechanisms 39 and 40 are provided to accurately set the crimping position and the clamping position, crimping and clamping can be performed reliably.

24 to 28 show an embodiment in which the clamping device 1 is reciprocated in the horizontal direction between the crimping position and the clamping position, and in these figures, the same structure as the first embodiment is shown. Elements will be given the same reference numerals, detailed explanations thereof will be omitted, and only different parts will be explained.

Here, the base 22 is provided with a guide rod 137 that extends from the crimping position to the clamping position, and the guide rod 137 includes a stopper 138 that defines the clamping device 1 at the crimping position, and a stopper 138 that defines the clamping device 1 at the clamping position. A stopper 139 is provided to define the clamping position, and the clamping device 1 is slidably supported by this guide rod 137 and reciprocates in a section defined by the stopper 138 and the stopper 139. ing.

FIG. 26 shows the clamping device 1 in the clamping position, and FIG. 27 shows the clamping device 1 in the crimping position. Reference numeral 141 denotes a clamp release plate, and the clamp release plate 141 has a guide pin 142 and an engagement pin 143. An engagement rod 144 that engages with the upper end surface of the release plate 141 is provided, and the clamp release plate 141 is
The guide pin 142 is reciprocated in the vertical direction while slidingly contacting the guide hole 140, and the clamping arm 3 is biased by a spring 145 with the pin 75 as a fulcrum in a direction to clamp the cut end of the binding tape 11. The engaging pin 143 has a function of engaging the abutment plate 97 and rotating the clamping arm 3 in the opposite direction to the spring biasing direction when the clamping device 1 is in the crimping position. , rotating arm 10
3 has a function of engaging with the abutment plate 97 and rotating the clamping arm 3 in the direction opposite to the spring biasing direction when the clamping device 1 is in the clamping position, and also engages with the engagement pin 143. The clamping arm 3 has a function of lifting the clamping release plate 141 along the guide hole 140, and the clamping arm 3 allows the crimping device 2 to move further down from the position shown in FIG. When the engagement is released, the clamping arm 3 holds the binding tape 1 by the biasing force of the spring 145.
The cut end of the binding tape is rotated in the direction of clamping the cut end of the binding tape, and the cut end of the binding tape is clamped at the clamping position and released from the clamping at the crimping position. As shown in FIG. 25, the crimping device 2 is stopped at an intermediate portion between the crimping position and the waiting position, and the binding tape 11 is wrapped around the object 16 while the crimping device 2 moves toward the crimping position while drawing an arcuate trajectory. Object 16 to be turned and bound
After that, the crimping device 2 is stopped at an intermediate portion between the crimping position and the waiting position while tracing an arcuate trajectory in the opposite direction, and the clamping device 1 is slid from the crimping position to the clamping position. After the crimping device 2 is stopped, the crimping device 2 is brought close to the clamping device 1 to cause the clamping device 1 to clamp the cut end of the binding tape 11, and then the crimping device 2 is separated from the clamping device 1, and the crimping device 2 and the clamping device are separated. 1, and the clamping device 1 is slid from the clamping position toward the crimping position after the crimping device 2 is stopped at an intermediate position.

Although the embodiments have been described above, the present invention is not limited thereto and includes the following.

(1) The binding tape 11 may be stretched below the mounting table 4 indicated by the two-dot chain line in FIG. In this case, the binding tape 11 is not pulled out during the mounting operation, so that the objects 16 can be bound more accurately.

(2) In the embodiment, a clamping device 1 and a crimping device 2 are used.
Although the configuration is such that the clamping device 1 and the crimping device 2 are moved in an arc, the configuration is not limited thereto, and a configuration in which the clamping device 1 and the crimping device 2 are vertically moved up and down is also possible.

(3) In the embodiment, a clamping device 1 and a crimping device 2 are used.
Although the configuration is such that the clamping device 1 and the crimping device 2 are driven respectively, it is also possible to configure one of the clamping device 1 and the crimping device 2 to be driven relative to the other.

(4) In the embodiment, the crimping device 2 is provided with the cutting blade 8, but the clamping device 1 may also be provided with the cutting blade 8.

(5) In the embodiment, the mounting table 4 is attached to the clamping device 1, but the mounting table 4 may be fixed to the base 22 separately from the clamping device 1.

(6) As shown in FIG. 29, a conveyor 146 extending horizontally is provided, buckets 147 are provided at regular intervals in the direction in which the conveyor 146 extends, objects to be bound are placed on the buckets 147, and the conveyor A configuration may also be adopted in which a pair of crimping devices 2 and a pair of clamping devices 1 are provided on both sides of the conveyance area 146 to bind both ends of a long object to be bound.

(7) In the embodiment, the crimping plate 9 is brought into contact with the crimping surface 80 from directly above, and the ends of both windings of the binding tape 11 are crimped.
The tip of the crimp plate 9 is pushed down below the crimp surface 80 by shifting the crimp plate 9 relatively to It is also possible to apply a pressing force to the winding ends to press the two winding ends together.

As explained above, according to the binding method according to the present invention and the binding device used therein, the binding tape can be tied after crimping and cutting without being stretched between the crimping device and the clamping device. This has the effect that the bound objects can be taken out in front of the worker.

Furthermore, since the clamping device and the crimping device are arranged to move independently of each other, even large bundles of objects to be bound can be bound.

[Brief explanation of drawings]

1 to 6 are diagrams for explaining the steps of the bundling method according to the present invention, and FIG. 1 is an explanatory diagram showing a state immediately before starting the bundling work. Second
The figure is an explanatory diagram showing a state in which objects to be bound are placed on a mounting table. FIG. 3 is an explanatory diagram showing a state in which both winding ends of the binding tape wound around the object to be bound are crimped and cut. FIG. 4 is an explanatory view showing that the crimping device has returned to the standby position and the binding tape is not stretched between the binding device and the clamping device.
FIG. 5 is an explanatory diagram showing a state in which objects to be bound are being taken out in front of the worker. FIG. 6 is an explanatory diagram showing a state in which a newly formed cut end is gripped by a clamping device. FIG. 7 is a schematic front view showing the overall configuration of the binding device according to the present invention. FIG. 8 is a side view of the binding device shown in FIG. 7. FIG. 9 is an enlarged front view of the rotation angle setting mechanism, and FIG. 10 is an enlarged side view of the rotation angle setting mechanism shown in FIG. FIG. 11 is an enlarged front view of the crimping device and the clamping device. FIG. 12 is an enlarged side view of FIG. 11. FIG. 13 is an enlarged longitudinal sectional view of the clamping roller. FIGS. 14 to 17 are explanatory diagrams illustrating the operation from crimping and cutting to clamping the cut end. FIG. 18 is an enlarged side view showing a modification of the binding device according to the present invention. FIG. 19 is an enlarged front view of FIG. 18. FIG. 20 is a sequence control circuit diagram. 21st
23A to 23C are explanatory views of the effect of the tape rewinding amount of the binding device according to the present invention. Figure 24 to 2
FIG. 8 shows another embodiment of the binding device according to the present invention, and FIG. 24 is a plan view showing the overall schematic configuration of the other embodiment. FIG. 25 is a side view showing the overall schematic configuration of another embodiment. FIGS. 26 and 27 are side views showing detailed configurations of a crimping device and a clamping device of other embodiments. Figure 28 shows Figures 26 and 27.
FIG. 2 is a front view showing the detailed configuration of the crimping device and the clamping device shown in the figure. FIG. 29 is an explanatory diagram showing still another embodiment of the binding method according to the present invention. DESCRIPTION OF SYMBOLS 1... Clamping device, 2... Crimping device, 3... Clamping arm, 5... Release maintaining means, 7... Clamping roller, 9... Crimping plate, 10... Release means, 11...
Binding tape, 13... cut end, 16... object to be bound, 21... cut end, 84... release arm mechanism, 85... release arm maintaining mechanism, 92... release maintaining member, 103... release Arm, 120... Binding tape rewinding mechanism, 122... Tape reel, 123, 124... Sprocket, 125...
...Chain.

Claims (1)

[Scope of Claims] 1. The cut ends are held by a clamping device, and the objects to be bound are brought into contact with a binding tape stretched between the clamping device and the crimping device to bind the objects. a first step in which the crimping device is moved independently from the state of the first step to approach the clamping device side, and a binding tape is applied to the objects to be bound, which are placed in a state where they can be bound; and crimping and cutting both winding ends of the binding tape wound around the object to be bound, and retracting the cut end of the newly formed binding tape from the clamping device, and removing the binding tape from the clamping device. a second step of independently separating either the device or the crimping device and waiting; a third step of taking out the object wrapped with the binding tape from the second step; In the process, either the clamping device or the crimping device independently separates and is on standby, and the clamping device or the crimping device that did not separate and stand by in the second step is independently moved. a fourth step in which the clamping device and the crimping device are brought close together and the cut end of the binding tape newly formed in the second step is clamped by the clamping device; A binding method comprising a fifth step of separating the binding tape independently from the clamping device and wrapping the binding tape between the clamping device and the crimping device. 2 A crimping device comprising a clamping device that clamps the cut end of the binding tape, and a crimping device that cooperates with the clamping device to crimp both winding ends of the binding tape wound around the object to be bound. One of the device and the clamping device is stationary and the other can be separated and approached, and the clamping device is connected to the clamping device after both winding ends of the binding tape are crimped at the crimping position. The function of swinging the clamping arm through the release arm that swings due to the relative movement of the clamping arm, and locking the swinging of the release arm with the release maintaining member to maintain the clamping of the cut end of the binding tape open. At the clamping position, the clamping arm is further swung through the release arm that is swung by the relative movement of the crimping device and the clamping device to release the lock of the release maintaining member and release the newly formed bundle. A binding device that is provided with a clamping means that has two functions of clamping and maintaining the cut end of the tape. 3. In claim 2, the clamping device is provided with an open maintenance means for maintaining the binding tape clamping means in an open state, and the crimping device is provided with a release mechanism for releasing the open maintenance of the open maintenance means. A binding device provided with means.