JP2562461Y2 - Label sticking 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 label sticking apparatus suitable for sticking a label on a container such as a cosmetic.

[0002]

2. Description of the Related Art In general, an air cylinder and a head for attaching a label, which is provided at a tip end of a piston rod of the air cylinder and reciprocated between a top dead center and a bottom dead center by the air cylinder. Labeling devices are known.

In this type of conventional label sticking apparatus, a label suction portion is provided at the tip end of a head portion, and when the head portion is driven to a top dead center position by an air cylinder, the top dead center position is set. When the head is driven to the bottom dead center position,
The adsorbed label is pressed against an object such as a cosmetic container, and the label is attached to the object.

The objects to be labeled are sequentially transported to a label attaching position by a transport means such as a conveyor, and the air cylinder expands and contracts a piston rod every time each object is transported. The part is reciprocated from top dead center to bottom dead center and back again to top dead center.

[0005]

In the above-described label sticking apparatus according to the prior art, when sticking the label by reciprocating the head portion, the piston rod of the air cylinder is always extended and contracted in one cycle. Since it is necessary to make the label stick, the label sticking speed is uniquely determined by the expansion / contraction speed of the air cylinder. For example, the speed of sticking about 60 labels per minute (60 sheets / min) is limited, There is a problem that the label sticking speed cannot be increased any more.

The present invention has been made in view of the above-mentioned problems of the prior art, and the present invention provides a label sticking apparatus capable of easily increasing a label sticking speed and improving workability. It is intended to be.

[0007]

In order to solve the above-mentioned problems, the present invention provides a cylinder, a rack driven by the cylinder and performing reciprocating linear motion, and meshing with the rack,
A pinion that makes one rotation while the rack moves in one direction, a crank that is connected to the pinion and rotates with the pinion, and is driven by the crank and that is driven from the top dead center to a bottom dead center while the crank rotates half a turn A slide mechanism that reaches the point and returns to the top dead center again by the remaining half rotation; and a label provided in the slide mechanism, the label is taken in when the slide mechanism is at the top dead center position, and the label is taken at the bottom dead center position. A configuration comprising a head unit to be attached to an object is adopted.

[0008]

With the above construction, the crank rotates one turn via the rack and the pinion while the cylinder moves the rack in one direction, and the head part is moved to the top dead center position via the slide mechanism while the crank makes one rotation. Can be reciprocated once from the bottom dead center position, so that when the cylinder is extended and retracted by one cycle, the head part can be reciprocated two times.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS.

In the drawing, reference numeral 1 denotes an air cylinder as a cylinder. The air cylinder 1 is generally constituted by a tube 1A and a piston rod 1B. The air cylinder 1 is supplied and discharged with compressed air from the outside. The piston rod 1B is extended and contracted in the direction indicated by the arrow A in FIG. 1 with a maximum stroke L (see FIG. 3). The tube 1A of the air cylinder 1 is mounted on a gantry 2 provided in a horizontal direction via an L-shaped angle 3.

Reference numeral 4 denotes a rack fixed to the tip end of the piston rod 1B of the air cylinder 1. The rack 4 is supported on the gantry 2 via a slide mechanism 5 as shown in FIG. When the piston rod 1B expands and contracts, the reciprocating linear movement on the gantry 2 is repeated.

Reference numeral 6 denotes a pinion that meshes with the rack 4. As shown in FIG. 2, the pinion 6 includes a support bracket 7 projecting upward from a rear end of the gantry 2, and a front end side of the gantry 2. , And is rotatably supported by bearings 9 and 9, respectively, with another supporting bracket 8 which faces the supporting bracket 7 and extends below the gantry 2. The pinion 6 makes one rotation in the direction indicated by the arrow B while the rack 4 moves in the direction indicated by the arrow A in FIG. 1 due to the extension of the piston rod 1B. One rotation is made in the direction opposite to arrow B while moving in the direction opposite to arrow A.

The shaft 6A of the pinion 6 projects forward from the support bracket 8 via a bearing 9, and the projecting end of the shaft 6A is fixed to a crank 10, which will be described later.

Reference numeral 10 denotes a crank. The crank 10 has a shaft 6A protruding forward from the support bracket 8.
, And rotates with the pinion 6 in the direction of arrow B or in the opposite direction.

Reference numeral 11 denotes a connecting rod for connecting the crank 10 to a slide mechanism 14 to be described later.
Both lower ends are connected to the crank 10 and the slide mechanism 14 via the pins 12 and 13, and convert the rotational movement of the crank 10 into a reciprocating movement of the slide mechanism 14.

Reference numeral 14 denotes a slide mechanism. As shown in FIG. 2, the slide mechanism 14 has a substantially U-shaped guide 16 provided at the lower end of the support bracket 8 with a mounting bracket 15 interposed therebetween. The upper and lower ends of the connecting member 11 are connected to the lower end of the connecting rod 11 via a pin 13. ing.

Reference numeral 18 denotes a head provided on the slide member 17, and a tip 18A of the head 18 is a suction head provided with a plurality of small holes (not shown).
By sucking air from the suction hose 18B through the small hole, the head portion 18 absorbs and takes in a label 20, which will be described later, at the distal end portion 18A. The head 18 is reciprocated by the slide mechanism 14 between a top dead center position indicated by a solid line in FIG. 2 and a bottom dead center position indicated by a two-dot chain line.

Reference numeral 19 denotes a label replenishing machine arranged so as to be located near the tip 18A when the head portion 18 is at the top dead center position.
As shown in the figure, a release plate 19A, a tape-shaped wax paper 19B that moves on the release plate 19A in the direction of arrow C so as to be folded at the tip of the release plate 19A, and a coating surface 20A of glue or the like. Are affixed onto the wax paper 19B, and the labels 20, 20,... Are arranged at predetermined intervals on the wax paper 19B. Then, the label replenishing machine 19 feeds the wax paper 19B in the direction of arrow C and turns over each label 20 on the wax paper 19B when the wax paper 19B is turned over on the release plate 19A.
Each label 20 is inserted just below the tip portion 18A of the head portion 18 with 0A directed downward.

Reference numeral 21 denotes a cosmetic bottle as an object to which the label 20 is to be adhered. The cosmetic bottle 21 is sequentially moved downward by the conveying means (not shown) such as a conveyer, for example, in a state of lying down. It is transported.

Reference numeral 22 denotes a sensor located above the transport means and provided in the vicinity of the head section 18.
2 is, for example, an optical position detector or the like is used, and each time each of the cosmetic bottles 21 is transported to the label attaching position by the transport means, the arrival of each of the cosmetic bottles 21 is detected. A drive signal is output to the cylinder 1.

This embodiment has the above-described configuration, and its operation will be described below.

First, when each cosmetic bottle 21 is conveyed below the head section 18 by the conveying means, the sensor 22 detects the arrival of each cosmetic bottle 21 and moves the piston rod 1B of the air cylinder 1 to the position shown in FIG. By extending the rack 4 on the distal end side of the piston rod 1B by extending the stroke L in the direction indicated by the arrow A in the middle, the crank 1 is moved together with the pinion 6.
0 is rotated once in the direction of arrow B shown in FIG.

At this time, the head unit 18 sucks and takes in the label 20 from the label replenishing machine 19 at a position corresponding to the top dead center T as shown by a characteristic line 23 shown in FIG.
Is moved to the bottom dead center B via the slide mechanism 14 at a position corresponding to a half stroke L / 2 corresponding to a half rotation of. The head portion 18 abuts on each makeup bottle 21 at the bottom dead center position indicated by the two-dot chain line in FIGS.
Then, while the piston rod 1B extends from the position of the half stroke L / 2 to the position of the stroke L, and the crank 10 performs the remaining half rotation, the head part 18 is shown in FIG. It returns to the top dead center T as described above.

When the next cosmetic bottle 21 is conveyed below the head portion 18, the sensor 22 detects this and reduces the piston rod 1B of the air cylinder 1 from the stroke L position in the opposite direction. At this time, the rack 4 causes the pinion 6 and the crank 10 to make one rotation in the direction opposite to the arrow B, and the head 18 moves in the opposite direction from the top dead center T as indicated by the characteristic line 23 shown in FIG. The label 20 is sucked from the label replenishing machine 19 at the top dead center T on the right end, moves to the bottom dead center B, attaches the label 20 to the makeup bottle 21, and returns to the top dead center T on the left end.

Thus, according to the present embodiment, while the piston rod 1B of the air cylinder 1 extends or contracts with the stroke L, the pinion 6 is rotated once through the rack 4 fixed to the piston rod 1B, Since the head 18 is connected to the crank 10 which rotates together with the pinion 6 via the connecting rod 11 and the slide mechanism 14, the piston rod 1B of the air cylinder 1 can extend and contract.
The head unit 18 can be reciprocated two times between the label replenishing machine 19 and each of the makeup bottles 21 during each rotation, and the label 20 can be moved without increasing the expansion / contraction speed of the air cylinder 1 particularly.
Can be easily increased up to, for example, 90 sheets / minute before and after, and the working efficiency can be greatly improved.

Further, since the moving speed of the head portion 18 can be increased without increasing the expansion and contraction speed of the air cylinder 1, the pressure of the compressed air supplied to and discharged from the air cylinder 1 can be increased, and valve switching can be frequently performed. Without having to go to
The efficiency of label sticking work can be improved with simple equipment.

In the above embodiment, the head portion 18 is reciprocated in the up-down direction, and the head portion 18 is brought into contact with each of the makeup bottles 21 conveyed in a state of being laid down so that the label 20 is attached. Although the above description has been given by way of example, the present invention is not limited to this, and the head unit may be reciprocated in the horizontal direction.
May be conveyed in a state where is set up.

Further, although a cosmetic bottle has been described as an example of an object to be labeled, the present invention is not limited to this, and may be applied to, for example, a cosmetic box or a container or box other than cosmetics.

[0029]

As described in detail above, according to the present invention, according to the present invention, a cylinder, a rack driven by the cylinder and repeating a reciprocating linear motion, meshes with the rack, and is moved while the rack moves in one direction. A rotating pinion, a crank connected to the pinion and rotating together with the pinion, and a slide mechanism that reaches the bottom dead center from top dead center during the half rotation of the crank and returns to the top dead center again with the remaining half rotation And a head unit that is provided on the slide mechanism, takes in a label when the slide mechanism is at the top dead center position, and sticks the label to an object at the bottom dead center position. Therefore, the head can be reciprocated twice while the cylinder extends and contracts once, and the operating speed of the head can be greatly increased without increasing the expansion / contraction speed of the cylinder. It is possible to increase the efficiency of work.

[Brief description of the drawings]

FIG. 1 is an external view showing a label sticking apparatus according to an embodiment of the present invention.

FIG. 2 is a sectional view taken in the direction of arrows II-II in FIG.

FIG. 3 is a characteristic diagram showing a positional relationship between a stroke of a piston rod and a head.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air cylinder (cylinder) 4 Rack 6 Pinion 10 Crank 11 Connecting rod 14 Slide mechanism 18 Head part 18B Suction hose 19 Label replenishing machine 20 Label 21 Makeup bottle (object) 22 Sensor

Claims (1)

(57) [Scope of request for utility model registration] 1. A cylinder, a rack driven by the cylinder and performing reciprocating linear motion, meshing with the rack,
A pinion that makes one rotation while the rack moves in one direction, a crank that is connected to the pinion and rotates with the pinion, and is driven by the crank and that is driven from the top dead center to a bottom dead center while the crank rotates half a turn A slide mechanism that reaches the point and returns to the top dead center again by the remaining half rotation; and a label provided in the slide mechanism, the label is taken in when the slide mechanism is at the top dead center position, and the label is taken at the bottom dead center position. A label sticking device comprising a head unit for sticking to an object.