JP3503696B2 - Automatic open drum band mounting 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 device for automatically mounting an open drum band for automatically mounting a band for fastening and fixing a top plate mounted on a steel open drum to a body.

[0002]

2. Description of the Related Art Steel open drums (hereinafter, simply referred to as "open drums") are widely used as containers for transporting and storing powders, liquids and the like. As shown in FIG. 1 and FIG. 2, in the open drum 1, a top plate 3 is liquid-tightly attachable to and detachable from an opening 2a of a body 2 through a gasket 4, and a peripheral portion 3a of the top plate 3 and an opening of the body 2 are opened. The peripheral portion 2b and the peripheral portion 2b are clamped and fixed by the band 10. The top plate 3 is provided with an injection port 3A and a ventilation port 3B at positions separated by 180 ° in the circumferential direction at a predetermined distance from the center, and plugs 5 and 6 are detachably attached to the respective caps. It is worn.

The band 10 is, for example, a lever type band (hereinafter, simply referred to as "lever band 10"), and is shown in FIG.
As shown in (a) to (c), an annular band 11 separated in the middle and a base end thereof are rotatably connected to one side end of the band 11 via a bracket and passed (clasp).
Clasp hook 14 fixed to the other end through 13
Lever handle 12 that can be engaged with and disengaged from the band 11
It is constituted by a lever hook 15 which is fixed at a predetermined position and locks the lever handle 12 at a tightening position.

The band 11 is expanded in diameter with the bridge 13 engaged with the clasp hook 14, and the top plate 3 is attached to the opening 2a of the body 2 through the gasket 4 as shown in FIG. In the opened state, the peripheral portion 2b of the opening and the peripheral portion 3a of the top plate 3
And the lever handle 12 are tightened and locked to the lever hook 15. The band 11 is set so that the amount of rotation of the lever handle 12 and the tightening force (diameter reduction amount) and the amount of expansion of the diameter are set to a minimum in order to prevent settling due to the expansion, and therefore a technique is required for mounting.

That is, an operator holds the peripheral edge portion 2b of the body 2 and the peripheral edge portion 3a of the top plate 3 from diagonally below the portion 11b opposite to the cut-off portion 11a by expanding and twisting the band 11. And the entire band 11 is gradually fitted into the cut-off portion 11a. When the fitting of the band 11 is completed and the operator releases the expanding force, the band 11
Returns to its original diameter due to its elastic force (springback). Next, the lever handle 12 is rotated to tighten the band 11 and hook it on the lever hook 15 to fix it. Then, the lever band 10 is set in such a positional relationship that the tip end thereof does not interfere with the mouthpiece of the ventilation port 3B when the lever handle 12 is rotated.

A bolt type band (hereinafter, simply referred to as "bolt band") for tightening and fixing the band is also expanded and attached in the same manner as in the lever band 10.

[0007]

As described above, the mounting of the lever band 10 on the open drum 1 is all done manually, and a large arm force is required when expanding the diameter of the band 11. It is a heavy burden on the operator. If the tightening force of the band 11 is weak, the sealing performance is deteriorated, so that the rigidity of the band 11 cannot be lowered. Further, the mounting operation requires skill, automation is difficult, and workability is poor. The same applies to the bolt band.

Further, in the production line, since the open drum is produced at a speed of one every several seconds (about 5 seconds), a large number of workers are required for the mounting process of the lever band 10, but the production line is When the production of the open drum is switched to the production of the closed type drum can, the band mounting process becomes unnecessary, and it is difficult for the worker to manage the process due to the change of the manufacturing rod. Further, since many workers are required for the process of attaching the lever band 10 and the bolt band, there is a problem that the labor cost rises. Therefore, there is a demand for an automatic device for mounting a lever band or a bolt band, and particularly for a device for automatically mounting a lever band that is difficult to mount.

The present invention has been made in view of the above points, and is an open drum in which the top plate is detachable from the body,
An object of the present invention is to provide an automatic band attaching device for an open drum, which automatically attaches a band for tightening and fixing a top plate to a body.

[0010]

In order to achieve the above object, according to the invention of claim 1, the open drum on which the top plate is mounted is fastened to the outer peripheral edge part of the top plate and the outer peripheral edge part of the opening of the body. An automatic drum band mounting apparatus for mounting a band for fixing, which receives the open drum being conveyed, and which is located above the open drum, on the cutout portion of the band or on a side substantially opposite to the cutoff portion. One of the sides is tilted so as to be in a high position and supported by expanding its diameter, and while lifting the open drum, the outer peripheral edge portion of the top plate and the outer peripheral edge portion of the body are opened from the lower portion of the inclined band. A band mounting device which is fitted toward a high portion, a conveying unit which conveys the band by positioning the separating portion at a predetermined position, and the band which is conveyed and receives the separating portion or the separating portion. Tilt so that any one side of high position substantially opposite, characterized in that it comprises a band feeding device for supplying to the band mounting device and.

The open drum is conveyed with the top plate attached to the opening of the body. The band mounting device receives the open drum, and tilts and expands the diameter of the band to be mounted above the open drum so that either one of the cutout portion and the side substantially opposite to the cutoff portion is higher. . Then, while lifting the open drum, the outer peripheral edge portion of the top plate and the outer peripheral edge portion of the opening of the body are separated from the inclined portion of the band or from the lower portion of the other side substantially opposite to the separated portion. It fits in toward the high part of any one side of the said isolation | separation part or this isolation | separation part and an opposite side. The slanted band allows the leading edge of the open drum to enter the lower part of the band from below, which creates a small gap between the rest of the rim and the band. It becomes possible to fit the band through this gap. With the rise of the open drum, the peripheral edge of the top plate and the peripheral edge of the body gradually enter the band toward the higher portion, and are fitted over the entire circumference.

On the other hand, the band is carried by the carrying means with the separating portion positioned at a predetermined position. The band supply device receives the band that is being conveyed, and inclines the band so that either one of the cutout portion and the side substantially opposite to the cutoff portion becomes higher and supplies the band wearing device. In this way, the lever bands are automatically attached to the body opening peripheral edge of the open drum and the outer peripheral edge of the top plate.

Preferably, the automatic band mounting device is structured such that the band is mounted at a high position on the side of the cut-off portion and is tilted so that the side substantially opposite to the cut-off portion is at the low position.
It is possible to easily wear the band and avoid complicating the overall structure of the band wearing device. According to a second aspect of the present invention, in the open drum band automatic mounting apparatus according to the first aspect, the conveying means places the cut-off portion at a predetermined position in a state in which the lever handle of the lever band is locked to the clasp hook. It is characterized in that it is positioned and conveyed.

According to a third aspect of the invention, in the open drum band automatic mounting apparatus according to the second aspect, the conveyed open drum is received, the position of the base of the top plate is detected, and the band is positioned at a predetermined position. A positioning device,
It further comprises: a lever band tightening and fixing device for receiving the open drum having the lever band attached thereto, reducing the diameter of the band, and locking the lever handle with the lever hook.

The open drum is conveyed with the top plate attached to the opening of the body. The positioning device receives the conveyed open drum, detects the position of the mouthpiece of the top plate and positions it at a predetermined position, and when the lever of the lever band is rotated and tightened and fixed, the tip of the lever is the mouthpiece. Try not to interfere with. The band mounting device receives the positioned open drum,
The lever band to be mounted above the open drum is tilted so that the cutout portion or one side substantially opposite to the cutoff portion is inclined and the diameter thereof is expanded and supported. Then, while lifting the open drum, the outer peripheral edge portion of the top plate and the outer peripheral edge portion of the opening of the body are separated from the cutout portion of the inclined lever band or a lower portion on the other side substantially opposite to the cutoff portion. It is fitted toward the cutout portion or a high portion on either one of the sides substantially opposite to the cutoff portion. The slanted lever band allows the front edge of the open drum to enter the lower part of the lever band from below, which causes a slight gap between the other part of the peripheral edge and the lever band. Is formed, and fitting into the lever band is possible through this gap.
As the open drum rises, the peripheral edge of the top plate and the peripheral edge of the body gradually enter the lever band toward the cutout portion or the side substantially opposite to the cutoff portion, and are fitted over the entire circumference.

On the other hand, the lever band is transported with the separating portion positioned at a predetermined position in a state in which the lever is locked by the transport means by the clasp hook. The lever band is positioned so that the tip of the lever does not interfere with the base of the top plate when the lever is rotated and tightened and fixed. The lever band supply device receives the lever band that is positioned and conveyed, and supplies the lever band to the band mounting device by inclining it so that either the cutout portion or one side substantially opposite to the cutout portion is higher. The lever band tightening and fixing device is
In the band mounting device, the open drum with the lever band mounted is received, the band is reduced in diameter, the lever is rotated, and the lever hook is locked. Since the position of the metal fitting on the top plate and the position of the lever band are positioned, it is possible to prevent the tip of the lever from interfering with the base of the top plate when the lever is rotated for tightening. In this way, the lever bands are automatically attached to the body opening peripheral edge of the open drum and the outer peripheral edge of the top plate.

According to a fourth aspect of the present invention, a band for automatically mounting an open drum is provided in which a band for fastening and fixing is mounted on the outer peripheral edge of the top plate of the open drum on which the top plate is mounted and the outer peripheral edge of the opening of the body. An apparatus for receiving the open drum and mounting it up and down so that it can be lifted up and down, and one of a cutout portion or a side substantially opposite to the cutout portion, which is arranged above the lift mechanism and is located above the lift mechanism. A band receiving / conveying mechanism that receives the band that is inclined and supplied so that the side is at a high position and conveys the band while being inclined, and a band receiving / conveying mechanism that is arranged above the band receiving / conveying mechanism. In the tilted state, the diameter is increased and gripped, and the open drum lifted by the elevating mechanism is pushed into the lower part of the tilted band and fitted into the higher part, Characterized by comprising a gripping mechanism for written order.

In the band attaching device, an open drum having a top plate attached to the opening of the body is placed on the elevating mechanism, and the band receiving and conveying mechanism separates the band feeding device from the band feeding device or a side substantially opposite to the band cutting device. Receiving the band that is supplied while being tilted so that one of the sides becomes higher,
It is conveyed above the open drum mounted on the lifting mechanism. Then, the gripping mechanism receives the band from the band receiving and conveying mechanism by expanding the diameter of the band in a tilted state, and receives the open drum lifted by the elevating mechanism from the cut portion of the tilted band or a side substantially opposite to the cut portion. While being pushed toward the lower part on the other side, the fitting part is fitted into the entire band at the cutout part or the higher part on either one side substantially opposite to the cutoff part.

According to a fifth aspect of the invention, in the automatic band mounting apparatus for an open drum according to the fourth aspect, the gripping mechanism grips the lower portion of the band from the outside.
The support member is disposed to face the first support member at a distance from each other, and is supported by inclining and expanding the diameter of the cut portion of the band or one of the sides substantially opposite to the cut portion as a high position. A second support member that pushes an open drum that is lifted by the elevating mechanism toward a lower portion of the band is provided, and the band supported by the band receiving / conveying mechanism is gripped and supported outside. It is characterized by

The gripping mechanism grips the cut portion of the band or the lower position on the other side, which is substantially opposite to the cut portion, from the outside by the first supporting member, and is arranged to face the first supporting member at a distance. With the second supporting member, the band is grasped from the band receiving / conveying mechanism by tilting and diametrically supporting the cut portion of the band or one side substantially opposite to the cut portion as a high position. In addition to supporting from the outside, the open drum that is lifted by the lifting mechanism is pushed toward the lower part of the tilted band to automatically attach the band to the body opening peripheral edge of the open drum and the top plate outer peripheral edge. To do.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 3 is a block diagram showing a schematic configuration of the entire automatic band mounting apparatus for an open drum according to the present invention. In the figure, a roller slat conveyor (hereinafter, simply referred to as "conveyor") 20 conveys the open drum 1 and the steel closed drum can (not shown) manufactured for each lot in the arrow direction. Open drum 1 is shown in Figure 1.
As shown in FIG. 2, the top plate 3 is fitted with the gasket 4 in the opening 2a of the body 2.
It is conveyed while being placed via the.

An automatic band mounting device 21 for the open drum 1 is provided in parallel on one side of the conveyor 20. The automatic band mounting device 21 is a loading device 22 for sequentially loading the open drums 1 conveyed by the conveyor 20 one by one.
A mouthpiece positioning device 23 for detecting the mouthpiece position of the inlet 3A of the top plate 3 placed on the taken-in open drum 1 and positioning it at a predetermined position, the positioned open drum 1 and the top plate 3 and the lever band 10. A lever band attaching device 24 for attaching the lever band, a band supplying conveyor 25 for supplying the lever band 10, and a lever band supplying device arranged at the end position of the band supplying conveyor 25 for receiving the lever band 10 and supplying it to the lever band attaching device 24 Two
6, the lever handle 12 of the attached lever band 10
A lever band tightening and fixing device 27 for tightening and fixing the open band 1, a carry-out device 28 for discharging the open drum 1 to which the lever band 10 is tightened and fixed to the conveyor 20, and a control device 29 for controlling each device according to a predetermined sequence. Has been done.

FIG. 4 is a plan view showing the details of FIG.
As shown in FIG. 4, the carry-in device 22 includes an actuator that takes in the open drum 1, such as a rodless cylinder 5.
0 is arranged across the conveyor 20 at a right angle. The slider 51 of the rodless cylinder 50 has a cylinder 52
Is provided so as to be capable of expanding and contracting toward the upstream side along the conveying direction of the conveyer 20, and a pusher 53 capable of contacting the lower side surface of the body 2 of the open drum 1 is provided at the tip of the rod. Stopper 54 on one side facing
Is provided. Further, the rodless cylinder 50 is
It is rotatable as indicated by the chain double-dashed line, and is housed along one side of the conveyor 20 when not in use (when carrying a closed drum can).

The stopper cylinder 55 is arranged on the upstream side of the rodless cylinder 50 so as to face the downstream side of the conveyer 20 in the conveying direction, and is slightly inclined. Cylinder 5
Allows one can to be taken by 0. In this stopper cylinder 55, a roller at the tip of the rod abuts on the outer peripheral surface of the body 2 of the open drum 1 and is rotatably supported so that it can be conveyed in front of the subsequent open drum 1 conveyed at a small interval. It is possible to get in.

A roller slat conveyor (hereinafter, simply referred to as "conveyor") 56 is provided from the carry-in device 22 to a position in front of the mouthpiece positioning device 23.
The open drum 1 taken in from 0 is conveyed to a position before the mouthpiece positioning device 23. Stopper pins 57 that stop the open drum 1 that has been conveyed are provided on both sides of the end position of the conveyor 56. Then, from substantially the center of the conveyor 56, the conveyor 180 of the carry-out device 28
A walking beam 60 is provided up to the starting end position of.

As shown in FIGS. 4 and 5, the walking beam 60 is provided at each position from the conveyor 56 to the receiving position of the open drum 1, the mouthpiece positioning device 23, the lever band mounting device 24, and the lever band tightening and fixing device 27. Locking pins 61 that lock the outer periphery of the lower part of the body of the open drum 1 at four positions are provided at positions corresponding to the (stage). At the position where the walking beam 60 receives the open drum 1, a sensor for detecting that the open drum 1 is conveyed, for example, a photoelectric sensor 62 including a light projector 62a and a light receiver 62b is provided.

The walking beam 60 has a stroke of one stage, and receives the open drum 1 while simultaneously moving upward in each stage.
It is conveyed to the next stage, and while descending, it is simultaneously passed to the stage and returned to the initial position. Note that such a walking beam 60 is well known, and detailed configuration and description thereof will be omitted.

As shown in FIGS. 6 and 7, the mouthpiece positioning device 23 has mounting frames 66, 66 and 67, 67 for mounting the open drum 1 received from the walking beam 60 on both sides of the walking beam 60 on the frame 65.
Are arranged side by side, and each mounting table 66 has locking pins 68 for locking the lower portion of the body 2 of the open drum 1 at four outer positions.
Is provided. Further, on each of the mounting tables 67, locking pins (not shown) for locking the lower part of the body 2 at four outer positions and the lower end of the open drum 1 are mounted at four positions and rotatably in a horizontal plane. A roller bearing 69 is provided.

A cylinder 71 is vertically provided at the center of an upper plate 70 of the frame 65, and a main shaft 72 fixed to a rod.
A pressing frame 73 is attached to the tip of the main shaft 72 so as to be rotatable and immovable in the axial direction. Presser frame 7
3 has a substantially flat trumpet shape, and an annular friction member, for example, a pressing rubber 74 is fixed to the opening end of the lower end over the entire circumference, and can be pressed against the upper surface of the outer peripheral edge portion 3a of the top plate 3. There is.

At the tip of the main shaft 72, a sensor for detecting the inlet 3A provided in the top plate 3, for example, a limit switch 75 is fixed. This limit switch 75
Detects the position of the inlet 3A by the detector coming into contact with the base (flange portion) of the inlet 3A. Presser frame 73
A gear 76 is fixed to the base end of the gear, and is meshed with a gear 78 fixed to the rotation shaft of a motor 77 vertically mounted on the upper plate 70. The holding frame 73 is pressed against the outer peripheral edge 3a of the top plate 3 via the holding rubber 74 by the extension of the cylinder 71, and is rotatably mounted on the mounting table 67 together with the top plate 3 by the rotation of the motor 77. The open drum 1 is rotated, and the cap of the inlet 3A is detected by the limit switch 75. The motor 77 stops when the limit switch 75 detects the base of the inlet 3A.

As shown in FIGS. 4 and 8, the band supply conveyor 25 is a chain conveyor, and two chains 80 carrying the lever bands 10 are provided with four pedestals 81, respectively.
A locking pin 82 is provided via the. Each pedestal 81
Place the lever band 10 at four places, and
2 is locked at four inner points. The lever band 10 is in a state in which the bridge 13 is engaged with the clasp hook 14. These four pedestals 81 and four locking pins 82 are set as one set, and one lever band 10
The chain 80, 80 is provided with a large number of such locking portions at predetermined intervals.

A plurality of marks 86 for positioning the lever band 10 are provided on the upper surface of the frame 85 on one side in the carrying direction. The lever band 10 is positioned and placed such that the cut-off portion 11a of the band 11 is located on the frame 85 side and the center position thereof coincides with the mark 86, and is locked by the four locking pins 82. To be done. The lever band 10 is carried in at the starting end position 25 of the conveyor 25.
In A, the worker performs the work manually. Further, since the marks 86 are provided at a plurality of positions along the transport direction, the worker can supply the lever band 10 even on the way of the conveyor 25.

In this embodiment, the lever band 10
Is carried in manually at the starting end side 25A of the conveyor 25, but it may be carried in by an automatic device. As shown in FIGS. 9 and 10, the lever band supply device 26 is disposed at the end position 25B of the conveyor 25, and supports the support base 9 on both sides and between each chain 80.
1 to 93 are arranged side by side. These supports 9
The lower portions of the units 1 to 93 are continuously provided, and are fixed to the tips of the rods of the cylinders 94 suspended from the frame 90 so that they can be moved up and down. The support bases 91 to 93 are the conveyor 25.
11a of the lever band 10 conveyed by
The support base 91 on which the side is placed is the highest, the support base 93 on which the part (center portion) 11b opposite to the cut-off portion 11a is placed is the lowest, and the center support base 92 is the intermediate height. .
As a result, the lever band 10 can be mounted with an inclination (with an inclination angle α with respect to the horizontal plane) such that the cutoff portion 11a side is highest and the opposite side 11b is lowest. This inclination angle α is in the range of 0.1 ° to 45 °.

A support plate 96 is placed and fixed on the upper surface of the support base 91, and pedestals 97 are provided on both sides of the cut-off portion 11a of the lever band 10 on the support plate 96. The pedestal 97 is provided with a slit 98 in the radial direction of the lever band 10. Slit 9
8 is set such that the starting end is slightly smaller than the radius of the lever band 10 and the ending end is slightly larger than the radius.
Cylinders 101, 101 are provided on both sides of the lower surface of the support plate 96, and the base end of the locking pin 102 is fixed to the tip of each rod. These locking pins 102 penetrate the slit 98 from below to above, and the cylinder 1
According to the expansion and contraction of 01, the slit 98 can be moved in the radial direction.

Pedestals 99 are provided at both ends of the upper surface of the support base 92, a pedestal 100 is provided substantially at the center of the upper surface of the support base 93, and locking pins 103 are provided. As shown in FIG. 9, when the cylinders 101, 101 are extended, the locking pins 102, 102, 103 are the four locking pins 82 of the conveyor 25 locking the lever band 10.
When the cylinders 101, 101 are shorter than the locking pins 102, 102, as shown in FIG.
Expands the lever band 10 with the locking pin 103 as a fulcrum, and unlocks the lever band 10 by the locking pin 82. As a result, the lever band supply device 26 can receive the lever band 10 from the conveyor 25.

As shown in FIG. 10, the support bases 91 to 93 are
When the cylinder 94 is shortened, each locking pin 10
The upper ends of 2, 103 are located slightly below the lower surface of the lever band 10 conveyed by the conveyor 25, and when extended, as shown by the chain double-dashed line.
Can be lifted and received from the conveyor 25, and can be lifted in a tilted state to a predetermined height position and handed over to the lever band mounting device 24.

12 to 16 show the structure of the lever band mounting device 24. The lever band attachment device 24 receives the lever band 10 from the lever band supply device 26 and conveys the lever band 10 to a position where the lever band 10 is attached to the open drum 1. Band attachment mechanism 15 for receiving and attaching to the open drum 1
5 and the open drum 1 are lifted to attach the band 1
The lift mechanism 126 mounts the lever band 10 on the open drum 1 in cooperation with 55.

A frame 1 as shown in FIGS.
Two guide rails 111 are provided at the upper end of 10 and extend on the lever band supply device 26 side at the inclination angle α with respect to the horizontal plane, and a slide member 112 is slidably supported. A cylinder 113 is arranged between the two guide rails 111 on the upper end of the frame 110, and the tip of the rod 114 is fixed to the rear end 112 a of the slide member 112. A support member 115 is horizontally movably supported on the lower surfaces of both sides 112b and 112b of the slide member 112 via LM guides, and support pins 116 projecting downward are provided at both front and rear ends. It is provided. Each cylinder 117 is placed and fixed on each side portion 112b, and the tips of the rods are fixed to the support member 115, respectively.

Each support member 115 is located above the support bases 91 to 93 of the lever band supply device 26 at the position where the cylinder 113 extends. As shown by the chain double-dashed line in FIG.
In the state where 7 is shortened, it is placed on the support stand 115,
Further, the support pin 116 slightly expands the lever band 10 in a state in which the cylinder 117 is expanded at a radial position slightly smaller than the inner diameter of the lever band 10 expanded by the locking pins 102, 102, 103. The diameter is released to unlock and support the locking pins 102, 102, 103. As a result, the lever band 10 can be received from above the lever band supply device 26. A flange (not shown) is provided at the lower end of each support pin 116 to support the lower end of the received lever band 10 to prevent it from falling. When the cylinder 113 is shortened, the slide member 112 moves to the center of the frame 110 as shown by the chain double-dashed line in FIG. In this way, the band receiving / transporting mechanism 118 is configured.

As shown in FIGS. 12 and 13, the frame 1
In the lower part of 10, the mounting tables 121, 121 and 122, 122 for mounting the open drum 1 received from the walking beam 60 on both sides of the walking beam 60.
Are arranged in parallel, and the mounting tables 121 and 122 are provided with locking pins 123 and 124, respectively, which lock the lower portion of the body 2 of the open drum 1 at four outer positions. Table 1
The lower portions of the frames 22 and 122 are connected to each other, and the frame 11
It is fixed to the rod tip of a cylinder 125 that is vertically installed at 0, and can be moved up and down. The mounting table 121 receives and mounts the open drum 1 conveyed by the walking beam 60, and the mounting table 122 is at a position lower than the mounting table 121 in a position where the cylinder 125 is shortened, and as the cylinder 125 extends. The open drum 1 mounted on the mounting table 121 is received, and the lever band 10 can be mounted in the extended position. In this way, the lifting mechanism 126 is configured.

As shown in FIGS. 15 and 16, the upper plate 130
Are arranged between two guide rails 111, four corners are supported by guide members 131 so as to be able to move up and down horizontally, and are raised and lowered by two cylinders 132, 132.
Support plates 133, 134, 135 are horizontally movable via LM guides on the left and right sides of the upper plate 130 and substantially in the center thereof. The center support plate 135 has a cylinder 136
And 137 are arranged back to back, and the brackets 133a, 13 of the support plate 133 with which the tips of the rods face each other.
It is fixed to the bracket 134a of No. 4. In addition, the support plate 135 has a bracket 138 fixed to the upper plate 130.
It is fixed to a rod of a cylinder 139 supported by. The support plates 133 and 134 on both sides are the cylinder 136,
The support plate 135 at the center moves to the left and right due to the expansion and contraction of 137.
Moves left and right due to the expansion and contraction of the cylinder 139, and simultaneously moves the support plates 136 and 137 in the same direction.

A bracket 134 is provided at the rear end of the support plate 134.
A cylinder 140 is vertically laid downward via b, and a gripping member 141 (FIG. 16) for gripping and pressing the central portion 11b of the lever band 10 opposite to the cut-off portion 11a is fixed to the tip of the rod. ing. This gripping member 14
1 has a cross-sectional shape that is substantially similar to the cross-sectional shape of the central portion 11b, and can be gripped and pressed so as to cover the central portion 11b from above and outside. The lower end of the grip member 141 is shorter than the lower end of the lever band 10 so that it can be easily lowered.

On the lower surface of the upper plate 130, locking members 142, 1 which are arcuate on both sides of the gripping member 141 and inward in the radial direction.
42 are provided. In addition, the support plate 13 of the upper plate 130
A cylinder 144 is vertically provided so as to face upward at a position closer to No. 3, and the rod 1 is provided at the tip of the rod parallel to the cylinder 144.
45 is vertically supported, and the lower end thereof is allowed to abut the peripheral portion of the top plate 2 by penetrating the hole of the upper plate 130. The locking member 142 and the rod 145 lock the top plate 3 when the open drum 1 is lifted and the band is attached, and the upper limit position of the open drum is regulated.

Two support plates 14 are provided on the lower surface of the support plate 133.
6 are hung vertically in parallel, each slot 130a formed in the upper plate 130 is freely movably extended in the longitudinal direction and extends downward, and a support plate 147 is horizontally fixed to the lower end. A support plate 148 is vertically provided at the center of the lower surface of the support plate 147. As shown in FIG. 17, the vertical support plate 148 has two
Two cylinders 150, 150 are fixed back-to-back and horizontally, and the base ends of the support members 151, 151 are respectively fixed to the tips of the rods through LM guides fixed horizontally on the lower surface of the horizontal support plate 147. Is fixed. Guide plates 152, 1 are attached to the tips of the respective support members 151.
Numerals 52 are fixed in parallel so as to be separated and opposed to each other, and can be approached and separated in parallel in the horizontal direction according to expansion and contraction of each cylinder 150.

The front end of each guide plate 152 is obliquely cut from the approximate center to the lower side to form an inclined surface 152a. In addition, a support 153 is provided at the approximate center of the outer surface of each guide plate 152. Two guide plates 152
Can be inserted between the cut-off portions 11a of the lever band 10 at the position where each cylinder 150 is shortened (see FIG. 1).
8 (a)), in the extended position, it is slightly wider than the maximum expansion width of the cut-off portion 11a (in the state where the bridge 13 is locked to the catch hook 14) (FIG. 18).
(B)) is set. These two guide plates 152 support the separated portion 11a of the lever band 10.

That is, as shown in FIG.
Is shortened and the cylinders 136, 137 are extended, the gripping member 141 on the right side and the two guide plates 152 on the left side in the drawing are at the maximum distance from each other at the positions shown by the solid lines, and when the cylinders 136, 137 are shortened, The lever bands 10 can be held close to each other. Thereby, the gripping member 1
The lever band 10 supported by the band receiving / conveying mechanism 118 shown in FIG. 13 is received from above and gripped, that is, the grips are replaced. Further, as shown in FIG. 19, the support base 153 has a bolt insertion tube (commonly referred to as S fitting) 1 when the bolt band 10 ′ is used.
It is for mounting and supporting 1's. The mounting mechanism 155 is configured in this way.

As shown in FIG. 20, in the lever band tightening / fixing device 27, on the lower part of the frame 160, the mounting tables 161 and 16 for mounting the open drums 1 received from the walking beam 60 on both sides of the walking beam 60.
1 and 162, 162 are arranged side by side, and each mounting table 16
Locking pins 163 and 164 that lock the lower portion of the body 2 of the open drum 1 at four locations on the outer peripheral portion are provided on the reference numerals 1 and 162, respectively. Lower parts of the mounting tables 162, 162 are connected to each other, and a cylinder 165 vertically installed on the frame 160.
It is fixed to the rod end of and can be moved up and down. The mounting table 161 receives and mounts the open drum 1 conveyed by the walking beam 60, and the mounting table 162 is
The cylinder 165 is at a position lower than the mounting table 161 in the shortened position, receives the open drum 1 mounted on the mounting table 161 as the cylinder 165 extends, and the lever band 10 can be tightened in the extended position. It is said that The lifting mechanism 166 is configured in this way.

A frame 160 as shown in FIGS.
On the lower surface of the upper plate 171, a pair of half-diameter band reducing arms 172, 172 are horizontally arranged facing each other.
These band reducing arms 172 have opposite inner surfaces 17
2a is cut out in an arc shape so as to surround the outer periphery of the lever band 10, and the upper surfaces in the vicinity of both ends can be moved in parallel and separately via the LM guide 173, respectively. And the two band reducing arms 172, 1
The two opposite ends of 72 are connected to the cylinder bottoms of the cylinders 174 and 174 and the tip of the rod. When these cylinders 174 extend, each band reducing arm 17
2 allows the lever band 10 mounted on the open drum 1 to be separated from each other, and when shortened, the lever band 10 is reduced in diameter so that the lever handle 12 can be tightened and locked to the lever hook 15. .

The upper plate 171 has two tightening arms 172.
Lever handle 1 of the lever band 10 between 172 and 172
An arcuate slit 171a is provided from the tightening start position to the tightening end position in the tightening operation of No. 2 so as to correspond to the rotation locus thereof. Arm 175 for tightening
Has a substantially L shape in a plan view (FIG. 4), a central portion is rotatably supported in a horizontal plane, and one end portion 175 a is a cylinder 176.
Connected to the rod end of the hook and hooked to the other end 175b.
7 are provided (FIG. 20). This hook 177
It penetrates through the slit 171a and hangs downward, and its lower end 177a can be engaged with the tip of the lever handle 12 of the lever band 10 (FIG. 21). Cylinder 17
6 is supported by the upper plate 171 horizontally and rotatably at a substantially central portion.

The cylinder 176 has a rod as shown in FIGS.
In the extended position such as 0, the hook 177 engages with the tip of the lever band 12 at the tightening start position, and the cylinder 176 and the arm 175 rotate as the rod shortens, and the hook 177 causes the lever handle 12 to rotate. Is rotated in the tightening direction, tightening of the lever band 12 is completed at the position where the rod is shortened, and the lever hook 1
Lock to 5.

As shown in FIG. 4, the carry-out device 28 is provided with a conveyor 180 for receiving the open drum 1 to which the lever band 10 is clamped and fixed in the lever band tightening device 27 from the walking beam 60 and transporting it to the carry-out position. A rodless cylinder 181 for carrying out is arranged at the end position of the conveyor 180 so as to be orthogonal to the carrying direction, and the open drum 1 is attached to the slider 182.
A pusher 183 for pressing the side surface of the body 2 is fixed. The slider 182 carries out the open drum 1 from the conveyor 180 to the conveyor 20 by moving from the start end position shown by the two-dot chain line to the end position shown by the solid line.

Below, the open drum 1 and the lever band 1
The operation of mounting 0 and tightening and fixing will be described. Figure 4
As shown in FIG. 5, the loading device 20 is configured such that the open drum 1 conveyed by the conveyor 20 is the rodless cylinder 50.
When it comes into contact with the stopper 54 provided on the
The stopper cylinder 55 is extended to stop the subsequent open drum 1. Next, the cylinder 52 extends and the pusher 53 comes into contact with the lower portion of the side surface of the body 2 of the open drum 1, and the slider 51 moves upward in the drawing to carry the open drum 1 onto the conveyor 56. The open drum 1 is conveyed rightward in the figure by the conveyor 56 and stopped by the stopper pin 57 as shown in FIG. When the photoelectric sensor 62 detects the open drum 1, the walking beam 60 is activated to place the open drum 1 and convey it to the mouthpiece position detecting device 23, and mount it on the mounting table 66 as shown in FIG. Place.

Next, the mounting table 67 rises to lift the open drum 1, and the cylinder 71 extends to lower the pressing frame 73 to press the pressing rubber 74 on the lower end surface against the upper surface of the peripheral edge 3a of the top plate 3. (FIG. 7), the motor 77 rotates to rotate the holding frame 73 via the gears 78 and 76,
The open drum 1 rotatably mounted on the roller bearing 69 of the mounting table 67 is rotated. When the limit switch 75 detects the mouthpiece 3A of the open drum 1, the motor 77 is stopped, the cylinder 71 is shortened, and the open drum 1 is positioned at that position. As shown in FIG. 22, the open drum 1 has a straight line L connecting the centers of the inlet 3A and the vent 3B with respect to the center position of the cut-off portion 11a of the lever band 10 positioned at the mark 86.
The angle θ formed by is in the range of 25 ° to 40 °, and the injection port 3A is positioned so as to be close to the cut-off portion 11a.
This prevents the lever tip from interfering with the mouthpiece of the ventilation port 3B when tightening the lever handle 12 of the lever band 10.

Then, the mounting table 67 descends to descend the mounting table 66.
When the positioned open drum 1 is placed on,
The walking beam 60 operates to convey the open drum 1 to the lever band mounting device 24 and mount it on the mounting table 121 (FIGS. 12 and 13). On the other hand, as shown in FIGS. 4 and 8, at the starting end position 25A of the band supply conveyor 25, the lever band 10 is placed on the chain 80 and conveyed rightward in the drawings. The lever band 10 is placed so that the center of the cut-off portion 11 a coincides with the mark 86, and is locked by the four locking pins 82. As a result, the top plate 3 and the lever band 10 are positioned as shown in FIG. As shown in FIG. 9, when the lever band 10 is conveyed to the terminal position 25B of the band supply conveyor 25, a limit switch (not shown) operates and the chain 80 stops.

Then, the cylinder 94 of the lever band receiving device 26 shown in FIG. 10 is extended, the supporting bases 91 to 93 are raised to the position of the lever band 10, and the cylinders 101, 101 are shortened as shown in FIG. Locking pin 102,
The lever band 10 is slightly expanded in diameter by 102 and 103 to release the engagement with each locking pin 82 of the band supply conveyor 25 and support the lever band 10. Then, the cylinder 94 is further extended to lift the lever band 10 to the position shown by the chain double-dashed line in FIG. In this state, the lever band 10 has the highest separating portion 11a,
The opposite side 11b is the lowest and has a predetermined angle α with the horizontal plane.
Being tilted and supported.

At this time, as shown in FIGS. 13 and 14, the band receiving / transporting mechanism 118 of the lever band mounting device 24.
Is located right above the band receiving device 26 with the cylinder 113 extended, and the cylinders 117 on both sides are shortened so that the support pins 116 at both ends of the support members 115, 115 are located above the lifted lever band 10. It is located inside. Then, each cylinder 117 is extended to support member 11
5 is moved to the outside, the lever band 10 is slightly expanded by the four support pins 116, and the locking pins 102, 10
2 and 103 are disengaged and supported from above. Since each support pin 116 has a slight flange at its lower end, it can reliably support the lever band 10 without dropping it. In this manner, the band receiving / conveying mechanism 118 receives the positioned lever band 10 from the band receiving device 26. In this state, the lever band 10 is supported with the cut-off portion 11a being the highest and the opposite side 11b being the lowest and inclined by the predetermined angle α with respect to the horizontal plane.

Then, the cylinder 113 is shortened, and the band receiving / conveying mechanism 118 moves right above the open drum 1 as shown by the chain double-dashed line in FIG. Lever band 10
Is the highest at the cut-off portion 11a, the lowest at the opposite side 11b, and is supported at a predetermined angle α with respect to the horizontal plane. Then, as shown in FIG. 16, the cylinder 140 of the band gripping mechanism extends and the gripping member 144 descends to the position shown by the dotted line, and the cylinder 137 (FIG. 15) shortens and moves in the direction of the arrow to separate the cut portion 11a. Central part 11b opposite to
Is grasped from above and from the outside.

At the same time, the cylinder 136 (FIG. 15) is shortened and the two guide plates 152, 152 are moved to the positions shown by the dotted lines in FIG.
After being inserted in between (FIG. 18 (a)), the cylinders 150, 1
50 (FIG. 17) extends to guide the guide plates 152, 15
2 is moved away in the direction of the arrow in FIG. 18 (b), and the lever band 10 is expanded to the maximum diameter and supported. The lever band 10 is
Since the diameter expansion is limited by the transition 13, the permanent deformation of the cut-off portion 11a and the central portion 11b on the opposite side due to the diameter expansion is prevented.

Next, the cylinders 117 and 117 of the band receiving and conveying mechanism 118 are shortened, and the lever band 10 is moved to 4
The support by the book support pin 116 is released, and the holding member 1
The outer peripheral portion and the cut-off portion 11a are gripped by 41 and the guide plates 152, 152, and are supported at the predetermined inclination angle α. In this way, the lever band 10 is replaced by the band receiving / transporting mechanism 118 by the band gripping mechanism.
In this way, the lever band 10 is attached to the central portion 11 of the band 11.
The open drum 1 can be mounted by gripping the outer peripheral part of b and the separating part 11a.

In the case of a bolt band, since there is no crossover 13 for limiting the diameter expansion, the diameter expansion by the guide plates 152, 152 is limited, and as shown in FIG.
By supporting the 1's by the bracket 153, it is possible to prevent the side of the cut-off portion 11'a from being displaced and to hold the bolt band 10 'at the predetermined inclination angle α. Then, the cylinders 132, 132 of FIG.
30 by one step (FIG. 24 (a)), and the lever band 1
After lowering 0 to below the band receiving / conveying mechanism 118, the cylinder 113 extends to move the band receiving / conveying mechanism 118 to the position shown in FIG.
3 is moved to the position indicated by the solid line to prepare for receiving the next lever band.

Next, the cylinder 125 shown in FIG. 13 extends to lift the open drum 1 mounted on the mounting table 122 horizontally. As shown in FIG. 24 (a), while the open drum 1 is being lifted as indicated by arrow A, the outer peripheral edge portion 3 a of the top plate 3 is pushed in the direction of arrow B by the inclined surface 152 a of the guide 152, and the open drum 1 The front edge portion 1a of the top plate peripheral edge portion 3a and the body peripheral edge portion 2b enters the central portion 11b at the lowest position of the lever band 10 (the same figure (b)).

Since the lever band 10 is inclined,
The front edge portion 1a of the open drum 1 can enter the lowest central portion 11b of the lever band 10 from below, and the front edge portion 1a of the open drum 1 can be inserted into the lever band 10.
By entering the central portion 11b of the above, a slight gap is formed between the other portion of the peripheral edge portion of the open drum 1 and the inner periphery of the lever band 10, and the fitting into the lever band 10 is performed through the gap. Is possible.

With the further rise of the open drum 1, the peripheral edge 3a of the top plate 3 and the peripheral edge 2b of the body 2 are separated.
Gradually enter the lever band 10 toward a. Along with this, the cylinder 139 shown in FIG.
33 and 134 are moved leftward in the figure, and the gripping member 141 and the guide plate 152 shown in FIG. 24B move leftward in the figure to push the lever band 10 in the same direction. Further, the cylinder 140 is shortened while pressing the lever band 10 to prevent the lever band 10 from rising when the open drum 1 is fitted. This allows
As shown in FIG. 3C, the lever band 10 is fitted over the entire circumference of the peripheral edge portion 3a of the top plate 3 and the peripheral edge portion 2b of the body 2. When the open drum 1 is further lifted, the top plate 3 is held down by the locking member 142 and the rod 145,
The cylinder 125 stops at that position ((d) in the figure).
Then, the cylinders 136 and 137 of FIG. 15 are extended and the guide plate 152 and the grip member 141 are retracted to be separated from the lever band 10.

Next, the cylinder 125 shown in FIG. 13 is shortened and the open drum 1 having the lever band 10 mounted thereon is mounted on the mounting table 121. Then, the walking beam 60 is operated to convey the open drum 1 to the band tightening and fixing device 27 shown in FIG. 20 and place it on the mounting table 161. Next, the cylinder 165 extends to lift the open drum 1 to the band tightening position shown in the figure. Figure 2
As shown in FIG. 1, the band reducing arms 172 and 172 shorten the cylinders 174 and 174 to tighten the lever band 10 from both sides of the cut-off portion 11a to reduce the diameter.

Then, the cylinder 176 shown in FIG. 20 is shortened and the arm 175 is rotated to move the hook 1 at the lower end thereof.
With 77a, the lever handle 12 is rotated from the inlet 3A side of the top plate 3 without interfering with the mouthpiece of the ventilation port 3B as shown by the two-dot chain line in FIG. . As a result, the lever band 10 is fastened and fixed to the open drum 1 as shown in FIG. Some top plates do not have the inlet 3A and the ventilation port 3B. In such a top plate, there is no problem because the tip of the lever handle 12 does not interfere with the base.

After tightening and fixing the lever band 10,
Cylinders 174 and 174 extend to expand the band reducing arm 1
72 and 172 expand to separate from the lever band 10,
The cylinder 165 is shortened and the open drum 1 is placed on the support base 161. Next, walking beam 6
0 conveys the open drum 1 and places it on the starting end position of the conveyor 180 of the carry-out device 28 shown in FIG. When the open drum 1 is conveyed to the end position of the conveyor 180, the slider 182 of the rodless cylinder 181 pushes the body side portion of the open drum 1 via the pusher 183 and carries it out to the conveyor 20. In this way, the automatic mounting of the lever band 10 on the open drum 1 and the tightening and fixing work are completed.

In the above embodiment, the lever band 1
0 is the highest in the cut-off part 11a, and the opposite side (center part) 11
Although it is mounted on the open drum by inclining it so that b is the lowest, it can be mounted on the open drum even if the separating portion 11a is slightly displaced in the circumferential direction from the highest position. is there. Therefore, when configuring the automatic band mounting device, it is possible to set a large tolerance for each part, and it is possible to suppress the cost increase of the device.

Further, in the above embodiment, the automatic band mounting device is mounted on the open drum by inclining the lever band 10 so that the side thereof is higher on the side of the cut-off portion 11a and lower on the side of the opposite side (central portion) 11b. However, on the contrary, on the side of the cut-off portion 11a of the lever band 10 is low,
You may comprise so that it may be mounted | worn with an open drum by inclining so that the opposite side (central part) 11b side may become high.

Further, in the above embodiment, the automatic band mounting device 21 is installed in the manufacturing line where the open drum and the closed drum can are conveyed by the manufacturing lot for each manufacturing lot, and the lever band 10 is installed on the open drum.
However, in the case of the production line dedicated to the open drum, the carry-in device 22 for taking in the open drum and the carry-out device 28 for carrying out the open drum with the lever band 10 mounted and fixed are required. is not.

In the above embodiment, the case where the lever band is attached to the open drum by the automatic band attaching device 21 has been described, but it goes without saying that the bolt band can be attached in the same manner. . That is, the band automatic mounting device 21 can automatically mount any type of band, such as a lever band and a bolt band, on an open drum.

When the automatic band mounting device 21 is used in a production line exclusively for mounting the bolt band, the bolt band does not have a lever handle like a lever band, and therefore, the lever handle when tightening the band is not provided. Since there is no risk of hitting the base of the top plate during the turning operation, the base of the top plate may be located at any position with respect to the cut-off portion of the bolt band, and the base positioning device 23 and the lever band tightening and fixing device. 27 can be omitted. As a result, it is possible to improve the mounting speed of the bolt band (improve workability) and reduce the equipment cost.

[0072]

As described above, according to the first aspect of the invention, the band for tightening and fixing the outer peripheral edge portion of the top plate and the outer peripheral edge portion of the body opening of the open drum on which the top plate is mounted,
Since it can be automatically attached and tightened and fixed, it becomes possible to automate and unmanned the band attaching process. As a result, workability can be improved and labor costs can be greatly saved.

According to the second and third aspects of the invention, a lever band for fastening and fixing the outer peripheral edge of the top plate and the outer peripheral edge of the body opening of the open drum to which the top plate is attached is automatically attached and fixed. This makes it possible to automate and unmanner the entire process of attaching the lever band to the open drum, which was difficult to automate. In the inventions of claims 4 and 5, a band for fastening and fixing the outer peripheral edge of the top plate and the outer peripheral edge of the body opening of the open drum to which the top plate is attached can be automatically attached, and the operator's The burden can be significantly reduced and workability can be improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view when a lever band is attached to an open drum.

FIG. 2 is an explanatory diagram showing a procedure for mounting a lever band on an open drum.

FIG. 3 is a block diagram illustrating a schematic configuration of an automatic drum lever band mounting apparatus according to the present invention.

4 is a plan view showing the details of the lever band automatic mounting apparatus for the open drum shown in FIG.

5 is an enlarged view of the carry-in device shown in FIG.

6 is a cross-sectional view of the mouthpiece positioning device shown in FIG.

FIG. 7 is an enlarged view of a main part of the ferrule positioning device shown in FIG.

8 is a partially enlarged view of the band supply conveyor shown in FIG.

9 is an enlarged view showing details of the lever band receiving device shown in FIG.

10 is an arrow X- of the lever band receiver shown in FIG.
It is sectional drawing which follows X.

11 is an operation explanatory view of the lever band supply device shown in FIG.

12 is a rear view of the lever band mounting device shown in FIG.

13 is a side view of the lever band attaching device shown in FIG. 4. FIG.

FIG. 14 is a partially omitted plan view of the lever band mounting device shown in FIG.

FIG. 15 is a partially omitted plan view of the lever band mounting device shown in FIG.

16 is an arrow XV of the lever band attaching device shown in FIG.
It is sectional drawing which follows I-XVI.

17 is an enlarged plan view of an essential part of a guide plate of the band gripping mechanism of the lever band mounting device shown in FIG.

FIG. 18 is an explanatory view of a band expanding operation by the band gripping mechanism shown in FIG. 17.

FIG. 19 is an enlarged view of a main part showing the support of the bolt band by the band gripping mechanism of the lever band mounting device shown in FIG. 16.

20 is a side view of the band tightening / fixing device shown in FIG. 4. FIG.

FIG. 21 is an arrow XXI- of the band tightening and fixing device shown in FIG.
It is a top view which follows XXI.

FIG. 22 is a plan view illustrating a positional relationship between the lever band and the open drum in the lever band automatic mounting apparatus for the open drum according to the present invention.

FIG. 23 is a plan view showing a state where the lever band in FIG. 22 is clamped and fixed.

FIG. 24 is an operation explanatory diagram when the lever band is attached to the open drum in FIG. 16;

[Explanation of symbols]

1 open drum 2 drum can body 3 Top plate 3A inlet 3B ventilation port 4 gasket 5, 6 plug 10 lever band 11 bands 12 lever handle 13 handing over 14 Clasp hook 15 Lever hook 20 conveyor 21 Automatic lever band mounting device 22 Loading device 23 Clasp positioning device 24 Lever band mounting device 25 band supply conveyor 26 Lever band feeder 27 Band tightening and fixing device 28 Unloading device 29 Control device

Continuation of the front page (56) Reference JP 10-156460 (JP, A) JP 63-203584 (JP, A) JP 62-72444 (JP, A) JP 60-133400 (JP , A) Japanese Unexamined Patent Publication No. 50-37585 (JP, A) Actual development No. 62-109828 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B21D 51/00-51/54 B23P 19/02

Claims (5)

(57) [Claims] 1. An automatic band mounting apparatus for an open drum, wherein a band for fastening and fixing is mounted on an outer peripheral edge of the top plate and an outer peripheral edge of an opening of a body of an open drum on which the top plate is mounted. While receiving the open drum being conveyed, it is tilted and expanded so that either the cutout portion of the band or one side substantially opposite to the cutoff portion is located above the open drum so as to be at a higher position and supported. Then, while lifting the open drum, a band mounting device that fits the outer peripheral edge portion of the top plate and the outer peripheral edge portion of the body of the body from a lower portion of the inclined band toward a higher portion thereof, and the band is separated from each other. Transporting means for positioning and transporting a part at a predetermined position, receiving the transported band, and inclining so that either one of the cutout portion or the side substantially opposite to the cutoff portion is at a higher position. Ba An automatic drum band attaching device for an open drum, comprising: a band supplying device for supplying the band attaching device. 2. The automatic band mounting apparatus for an open drum according to claim 1, wherein the conveying means positions the cut-off portion at a predetermined position in a state where the lever handle of the lever band is locked to the clasp hook. An open drum band automatic mounting device that is characterized in that it is conveyed as a whole. 3. A device for automatically mounting an open drum band according to claim 2, wherein the positioning device receives the conveyed open drum, detects the position of the base of the top plate, and positions it at a predetermined position. A device for automatically mounting a band for an open drum, further comprising: a lever band tightening and fixing device that receives an open drum having a lever band attached thereto, reduces a diameter of the band, and locks a lever handle with a lever hook. . 4. A band automatic mounting device for an open drum, wherein a band for tightening and fixing is mounted on an outer peripheral edge of the top plate and an outer peripheral edge of an opening of a body of an open drum on which the top plate is mounted, An elevating mechanism that receives the open drum and mounts it in an elevating manner, and is disposed above the elevating mechanism, and the cut portion or one side substantially opposite to the cut portion from the band supply device is a high position. In the state in which the band is inclined, the band receiving and conveying mechanism that receives the band while being inclined and conveys the band above the elevating mechanism, and the band receiving and conveying mechanism that is disposed above the band receiving and conveying mechanism, Also, while expanding and gripping,
An automatic drum band mounting apparatus for an open drum, comprising: an open drum that is lifted by the elevating mechanism, and a gripping mechanism that pushes the open drum toward a lower portion of the inclined band while fitting the same into a higher portion. . 5. The automatic band mounting apparatus for an open drum according to claim 4, wherein the gripping mechanism separates and opposes the first support member that grips a low portion of the band from the outside. The open drum that is lifted by the elevating mechanism and that is supported by inclining and expanding the cut portion of the band or one side substantially opposite to the cut portion as a high position. And a second supporting member that is pushed toward a lower part of the open drum, and the band supported by the band receiving and transporting mechanism is gripped and supported on the outside, and an automatic band mounting apparatus for an open drum is provided.