JPH0312646Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a drum used in a labeling device for applying labels to the inner surface of an automobile bonnet, etc.

(Prior Art) Conventionally, as a label pasting device, as described in, for example, Japanese Unexamined Patent Publication No. 163136/1983,
Negative pressure grooves are formed on the transport drum that transports labels,
Negative pressure is applied to this negative pressure groove to suction the non-adhesive surface of the label, and a rotating body is placed parallel to the outer circumferential surface of the transfer drum. The inner peripheral surface of the rotating body guides the label onto the outer peripheral surface of the drum and transports it to the position of the adherend. In some cases, the label can be attached directly to the transport drum.

(Problem to be solved by the invention) In the above-mentioned labeling device, the movable drum that holds the label rotates while keeping its position fixed, and the adherend to which the label is pasted rotates in synchronization with the rotation of the transport drum. While moving, the label attached by the transfer drum is attached directly to the adherend. Therefore, with this labeling device, it is not possible to apply a label to an adherend that is difficult to move, such as the inner surface of a car hood.

(Means for solving the problem) In order to solve the above problem, the present invention arranges a rod and a rack in parallel on a base, and holds the level with a guide slidably attached to the rod. The drum is rotatably mounted, and a pinion rotated by a drive source is easily engaged, and a gear that moves in conjunction with the rotation of the pinion is engaged with a gear fixed to the shaft of the drum, so that the drum rotates simultaneously. A label pasting device equipped with a moving mechanism was constructed.

(Function) Since the drum that holds the label rotates and slides along the rod provided on the base, the label can be attached to the adherend even if the adherend does not move.

(Example) An example of the present invention will be described below based on the accompanying drawings.

FIG. 1 is an overall configuration diagram of a labeling system equipped with a labeling device according to the present invention, FIG. 2 is a plan view of the labeling device shown in FIG. 1, FIG. 3 is a bottom view of FIG. 2, and FIG. The figure is a side view of figure 2,
The figure is an enlarged view of the main part of Fig. 4, Fig. 6 is a plan view of the label feeding device of Fig. 1, Fig. 7 is a front sectional view of Fig. 6, and Fig. 8 shows different operating states of Fig. 1. FIG.

The labeling system 1 includes a labeling device 3 for attaching a label to the inner surface of the bonnet 2 of an automobile as an adherend, a label separating device 4 for supplying labels to the labeling device 3, and a labeling device 3. It consists of a robot 5 that transports labels between the inner surface of an automobile bonnet 2 and a label separating device 4.

The label pasting device 3 has two rods 13, 13 mounted between support frames 12, 12 which are integrally provided on the side of the bottom surface of a base 11.
Guides 15 and 16 are slidably attached to guides 15 and 14, and drum brackets 17 and 18 are fixed to guides 15 and 16, respectively.
A transport drum 21 for holding the label is rotatably mounted between 7 and 18 via bearings 19 and 20, and a reinforcing frame angle 22 is fixed.

This transfer drum 21 is made up of a cylindrical body 25 made of aluminum or the like, and silicone rubber 26 is pasted on the circumferential surface of the cylinder to increase adhesion when sucking labels.
A large number of suction holes 27 are provided on the circumferential surface in the axial and circumferential directions.
28 are formed at approximately equal intervals.

A large number of suction holes 2 of this direction drum 21
One row of suction holes 27 in the holes 7 and 28, which are located at the positions where the end of the label comes into contact for the first time during label suction, are connected with branch pipes 30 inside.
is connected to a vinyl tube 31, and the vinyl tube 31 is passed through a hollow shaft 21a forming one shaft of the transfer drum 21 and connected to a vacuum pump (not shown) provided outside for generating negative pressure. Similarly, branch pipes (not shown) are connected to the inside of the remaining suction holes 28, and these branch pipes are connected to a vinyl tube 32. It is connected to a negative pressure generating vacuum pump (not shown) provided outside through the inside.

Further, a gear mechanism 35 is provided on one side of the transfer drum 21. This gear mechanism 35 has a gear bracket 30 attached to the outer surface of a drum bracket 17 at a predetermined interval via a spacer 36, and a gear shaft 38 is inserted between the gear bracket 37 and the drum bracket 17 via bearings 39, 39. It is attached so that it can rotate freely.

A pinion 41 is fixed to this gear shaft 38 with a key 42, and the pinion 41 is attached to one side of the base 11.
is engaged with a rack 45 attached parallel to the rod 13 via a plurality of spacers 43, a gear 46 is fixed to the gear shaft 38 with a key 47, and this gear 46 is attached to the other shaft 21a of the transfer drum 21 with the key 48. It meshes with the fixed gear 49.

Further, on the other side of the base 11, a bracket 51,
Attach the rodless cylinder 53 via 52,
The connecting fitting 5 of the rodless cylinder 53 is attached to the upper side of the drum bracket 18 via the bracket 55.
4 is fixed.

Next, the label separating device 4 includes side plates 61, 61 and a cover 6 fixed to the upper end surfaces of the side plates 61, 61.
2, and a bottom plate 6 fixed to the bottom end surfaces of the side plates 61, 61.
3, and a back plate 6 fixed to the rear end surfaces of the side plates 61, 61.
4 form a housing 65 with an open front side.

A label paper 68 with a label 66 attached to a release paper 67 is wound into a roll to form a label roll 69. A roll shaft 70 is inserted through the center of the label roll 69, and label pressers 71, A roll shaft 69 of a label roll 68 is rotatably mounted on the upper end portions of brackets 72, 72 erected at the rear of the side plates 61, 61.

The label paper 68 constituting the label roll 69 is transported by a transport roller 75 mounted between brackets 72, 72.
is fixed to the rear upper surface of the cover 62 and the transport roller 7
Paper presser 76 made of a spring material and pressed into contact with 5
The release paper 67 of this label paper 68 is then pulled into the interior through the label peeling part 77 that forms the tip of the cover 62, and the tip is placed between the release paper conveying rollers 78 and 79. I'm letting it bite.

The surface of the release paper conveyance roller 78 is coated with rubber 80 to increase the coefficient of friction, and the support shafts 78 on both sides
It is rotatably mounted between the side plates 67 and 67 at a and 78a. A motor 8 is mounted on the bottom plate 63 behind the release paper conveyance roller 78 via a base plate 82.
3 is fixed, and a belt 86 is stretched between a pulley 84 fixed to the rotating shaft of this motor 83 and a pulley 85 fixed to the side surface of the release paper conveying roller 78.
A release paper transport roller 78 is rotated by a motor 83.

On the other hand, the release paper conveying roller 79 has a mesh-like rough surface to similarly increase the coefficient of friction, and support shafts 79a on both sides are rotatably mounted between the side plates 67, 67 via eccentric bearings 88, 88. are doing.

A lever 89 is fixed to one of the support shafts 79a of the release paper conveying roller 79, and a tension coil spring 91 is engaged between the lever 89 and a post 90 implanted on the inner surface of the cover 62. When the lever 89 is rotated in the direction indicated by the arrow in FIG. When the rotational force of the release paper transport roller 79 is stopped, the release paper transport roller 79 is moved by the restoring force of the tension coil spring 91
8 so as to be pressed against it.

In addition, near the exit of the release paper 67 between the release paper conveyance roller 79 and the release paper conveyance roller 78, the tip of the entrainment prevention guide plate 92, which forms the tip of the bottom plate 63, is located below the release paper conveyance roller 78. This prevents the release paper 67 from wrapping around the release paper transport roller 78.

Furthermore, a release paper 6 is provided below the front of the label peeling section 77.
A compressed air jet pipe 96 having a plurality of jet holes 95 for blowing out compressed air to the label 66 peeled off from the label 7 is supported by a support 98, and a center of the front side of the compressed air jet pipe 96 is disposed. In order to determine the amount of protrusion of the label 77, a non-contact sensor 97 for detecting the presence or absence of the label 77 is supported by a support 98.

Next, the robot 5 is mounted on a base 100 fixed to a fixed part.
A first shaft 101 rotatably attached to the
a second shaft 102 swingably attached to the shaft 101;
The arm 10 attached to the tip of this second shaft 102
A third shaft 103 is rotatably attached to the labeling device 2a, and the tip of the third shaft 103 is fixed to the back surface of the base 11 of the labeling device 3.

The operation of the label pasting system having the above configuration will be explained.

First, by controlling the robot 5, as shown in FIG.
7 and approach the label 66 located on top of the label 66. Then, in order to bring the tubes 31 and 32 of the suction holes 27 and 28 of the transfer drum 21 into the suction state, a switching valve such as a vacuum pump (not shown) is opened, and the compressed air jet pipe 96 of the label separating device 4 is ejected. Hole 9
In order to blow out compressed air from 6, a switching valve (not shown) is opened.

As a result, suction of the non-adhesive surface of the label 66 by the suction holes 27 and 28 of the transfer drum 21 of the label pasting device 3 is started, and at the same time, the suction of the non-adhesive surface of the label 66 is started, and at the same time, the suction of the non-adhesive surface of the label 66 is started. Since the air pushes up the tip of the label 66 from the bottom (glue side) and presses it against the circumferential surface of the transfer drum 21,
The leading end of the label 66 is reliably attracted to the transfer drum 21.

At this time, the suction system of the suction holes of the transfer drum 21 is separated into a group of suction holes 27 provided at a position that contacts the tip of the label 66 during label suction and another group of suction holes 28, so that the suction holes 27 In the group suction system, all the suction holes 27 act on the label 66 and do not suck air, so the suction force is not dispersed and the label 66 is reliably suctioned. If the first suction of the label 66 is performed reliably, the subsequent suction will be successful, so that the entire surface of the label 66 can be suctioned.

Thereafter, by driving the rodless cylinder 53 of the label pasting device 3, the connecting fitting 54 is
moves, and due to the movement of the connecting fitting 54, the transfer drum 2 is moved through the bracket 55 and the guide 16.
A force that tends to move the labeling device 3 toward the rear acts on the labeling device 1 .

As a result, as shown in FIG. 8B, the pinion 41 rotates while meshing with the rack 45, so the guides 15, 16 slide on the rods 13, 14, the transfer drum 21 moves rearward, and at the same time, the pinion 41 rotates while engaging the rack 45. 41 rotates the gear shaft 38 and the gear 46 rotates, and the gear 49 that meshes with this gear 46 rotates, so the transfer drum 21 rotates and the entire surface of the label 66 is placed on the circumferential surface of the transfer drum 21. is adsorbed to.

In this state, the robot 5 is driven and controlled to rotate each axis, and as shown in FIG. 3
The end of the label 66 adsorbed on the transfer drum 21 is pressed against the inner surface of the bonnet 2.

And the transfer drum 21 of the labeling device 3
After stopping the suction from the suction holes 27 and 28, by driving the rodless cylinder 53 in the opposite direction, the connecting fitting 54 moves in the opposite direction and performs the same operation as when adsorbing the label described above. Then, the transport drum 21 rotates while moving in the opposite direction to the direction in which the label is sucked, and the label 66 is pasted on the inner surface of the bonnet 2.

On the other hand, the label separating device 4 is connected to the label pasting device 3.
When the transfer drum 21 is separated, a timer (not shown) with a timer value of, for example, 5 seconds is started, and when this timer times up, the motor 83 is driven to rotate the release paper transport roller 78. The next label 66 is positioned at the suction position by feeding the release paper 67 held between the release paper transport roller 79 and stopping the motor 83 when the sensor 97 detects the next label 66. .

After pasting the label 66, the robot 5
is controlled to bring the label pasting device 3 into the state shown in FIG. 8A again, and the next label 66 is pasted in the same manner as described above.

FIG. 9 is a side sectional view showing another embodiment of the labeling device according to the present invention. Note that the same reference numerals are given to the parts corresponding to those in the above embodiment, and the explanation thereof will be omitted.

In this embodiment, motor brackets 111 are attached to the drum bracket 18 at predetermined intervals, and
A motor 112 is attached to this motor bracket 111, and the rotating shaft 113 of this motor 112 is fitted to the gear shaft 38, so that the motor 111 is used as a driving source for the movement and rotation of the pinion 41, that is, the transfer drum 21. .

FIG. 10 is a side sectional view showing still another embodiment of the labeling device according to the present invention. Note that the same reference numerals are given to the parts corresponding to those in each of the above embodiments, and the explanation thereof will be omitted.

In this embodiment, a pinion 41 is rotatably fitted to the gear shaft 38 with a bearing 121, a clutch plate 122 is fixed to the pinion 41 by key fitting, and the gear shaft 38 is connected to the clutch plate 122. A clutch plate 123 is fitted in a non-rotatable but movable manner, and a compression coil spring 124 is interposed between the clutch plates 122 and 123.

Furthermore, a cylinder 126 is rotatably mounted on the gear shaft 38 on the motor 112 side of the clutch plate 123 with a bearing 127, and a piston 128 is sealed and slidably fitted into the cylinder 126 with O-rings 129, 130. Furthermore, this piston 128 and clutch plate 123 are connected to a thrust bearing 131.
and the piston 12 is connected to the cylinder 126.
A joint 132 that communicates with the air chamber between 8 and 8 is attached, and a compressed air supply pipe 133 is connected to this joint 132.

With this configuration, the compressed air supply pipe 13
When compressed air pressure is not supplied between the cylinder 126 and the piston 128 via the motor 11
2, the gear shaft 38 rotates and the gear 48 rotates, and the gear 49 that meshes with this gear 48 rotates and is transmitted to the transfer drum 21. However, the clutch plate 123 and the clutch plate 122 Since the rotation of the clutch plate 123 caused by the rotation of the gear shaft 38 is not transmitted to the clutch plate 122, the pinion 41 does not rotate and the guide 1
5 and 16 do not move along rods 13 and 14. Thereby, the transfer drum 21 rotates but does not move.

Further, by supplying compressed air pressure between the cylinder 126 and the piston 128 via the compressed air supply pipe 133, the piston 128 moves, and the piston 128 pushes the clutch plate 123 via the thrust bearing 131. Push, clutch plate 12
3 moves against the compression coil spring 124 and connects to the clutch plate 122.

Therefore, by rotationally driving the motor 122, the gear shaft 38 rotates, the gear 48 rotates, the gear 49 meshing with this gear 48 rotates and is transmitted to the transfer drum 21, and the clutch plate 12
3 and the clutch plate 122, the rotation of the clutch plate 123 caused by the rotation of the gear shaft 38 is transmitted to the clutch plate 122, and the pinion 41 rotates while meshing with the rack 45, causing the guides 15, 16 to rotate.
moves along rods 13 and 14. Thereby, the transfer drum 21 rotates and moves.

(Effects of the invention) As described above, according to the invention, negative pressure is applied independently to the suction hole provided at the position where the leading edge of the label comes into contact with the leading edge of the label when the label is sucked. The label is reliably suctioned and held on the circumferential surface of the drum, and negative pressure is applied to the other suction hole groups as a whole to uniformly suction and hold the other parts of the label. Therefore, when the label pasting device is in operation, the drum sucking and holding the label moves while rotating, making it possible to reliably paste the label to the adherend.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of a labeling system equipped with a labeling device according to the present invention, FIG. 2 is a plan view of the labeling device shown in FIG. 1, FIG. 3 is a bottom view of FIG. 2, and FIG. The figure is a side view of figure 2,
The figure is an enlarged view of the main part of Fig. 4, Fig. 6 is a plan view of the label feeding device of Fig. 1, Fig. 7 is a front sectional view of Fig. 6, and Fig. 8 shows different operating states of Fig. 1. FIG. 9 is a side sectional view showing another embodiment of the present invention, and FIG. 10 is a side sectional view of main parts showing still another embodiment of the present invention. In the drawing, 1 is a label pasting system, 2 is a bonnet, 3 is a label pasting device, 4 is a label separating device, 5 is a robot, 11 is a base, 13, 14
is a rod, 15, 16 are guides, 17, 18 are drum brackets, 27, 28 are suction holes, 31, 3
2 is a vinyl tube, 41 is a pinion, 45 is a rack, 46 and 49 are gears, 66 is a label, 11
2 is a motor, and 122 and 123 are clutch plates.

Claims (1)

[Scope of utility model registration request] A rod and a rack are arranged in parallel on a base, a guide is slidably attached to the rod, a drum for holding a label is rotatably attached to the guide, and a pinion is engaged with the rack, A label pasting device characterized in that a gear that moves together with the rotation of the pinion meshes with a gear fixed to the shaft of the drum, and further includes a drive source that rotates the pinion.