JPH0513696Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a labeling machine that applies a label to a container using a cam. More specifically, the present invention relates to a labeling machine that attaches a label to a container having a special shape whose outer peripheral surface is not uniform.

[Prior Art] Conventionally, a labeling machine has been disclosed that is equipped with a pressing section that uses a cam to press the remainder of the label against the remainder of the outer circumferential surface of a container (Utility Model Publication No. 45-9325). In this labeling machine, a neck brush is rotatably provided at the tip of a lever that can swing around a support shaft near the container transfer path, and the lever is moved so that the neck brush crosses the transfer path by rotation of a cam. The label is affixed around the neck of the container as it passes.

On the other hand, the present applicant has developed a labeling machine suitable for large flat containers, in which an arm is pushed out onto a transfer path by an arm drive unit before the container arrives, and a soft elastic member is attached to the surface of the container at a position where the container hits the arm. An application was filed for a utility model registration for a label lapping device configured to actively pat the label on the container surface by pressing the label against the surface of the container while retreating from the transfer path (Utility Model Application No. 60-157606). This label applying device is an excellent device that has a large label applying force and can uniformly apply a label to the surface of a container even if the container is large and flat.

[Problems to be solved by the invention] However, the labeling machine shown in Japanese Utility Model Publication No. 45-9325 and the label stamping device shown in Japanese Utility Model Application Publication No. 60-157606 have a special shape in which the outer peripheral surface is not uniform. There was a problem that the label could not be applied to the eggplant container.

In particular, the former labeling machine had the problem that the trajectory of the tip of the lever caused by the cam was just a circular arc, so the surface on which the label was applied was limited to a circular arc.

An object of the present invention is to provide a labeling machine that can evenly apply a label to the surface of a container having a special shape with a non-uniform outer circumferential surface.

[Means for Solving the Problems] In order to achieve the above object, the configuration of the present invention will be explained based on FIGS. 1 to 3, which correspond to embodiments.

The present invention includes a partial pasting means 10 for pressing a part of the label A coated with glue onto a part _b1 of the outer circumferential surface of a container B, and transporting the container B to which the label A is partly pasted. This is an improvement of a labeling machine equipped with a conveying means 80 for affixing the remaining portion of the label A to the remaining portions b ₂ and b ₃ of the outer peripheral surface of the container B using a cam.

The characteristic point is that the cam 3 of the circumferential mounting means 30
6 and 37 are containers B to which the remainder of label A is attached;
a container detector 48, which has a shape corresponding to the outer peripheral surface shape of the container B, is provided near the transfer path 80 of the container B, and detects the container B when the circumferential attaching means 30 has reached the circumferential attaching position on the transfer path 80; 50, stoppers 40a and 42a for stopping the container B at the circumferential position, and a presser for pressing the remaining portion of the label A against the remaining portions b ₂ and b ₃ of the outer peripheral surface of the container B following the shape of the cams 36 and 37. Section 72,
74, first actuators 44, 46 that actuate the stoppers 40a, 42a, and stroking parts 72, 7
4 and second actuators 56 and 58 for actuating the second actuator.

[Function] The first actuators 44 and 46 are the container detectors 4
8 and 50 detect container B, the stopper 40a,
42a to stop the container B, and when the container B stops, the second actuators 56 and 58 actuate the caressing part 7.
Activate 2,74. The caressing parts 72 and 74 are the cam 3
6, 37 and put the rest of label A on container B.
Press it to the remaining part of the outer circumferential surface of the After pasting, the second actuators 56 and 58 touch the touching parts 72 and 74.
The first actuators 44, 46 deactivate the stoppers 40a, 42a, and the container B
is moved again by the transfer path 80.

[Example] Next, an example of the present invention will be described in detail based on the drawings.

The labeling machine of this embodiment is for attaching a label A to a container B having a special shape, as shown in FIG. As shown in FIG. 2, this labeling machine is comprised of a partial label pasting device 10, a label wrapping device 30, and a conveyor 80 serving as a transfer path. The conveyor 80 is the partial pasting device 10
The container B with the label partially attached thereto is placed on the carrier C shown in FIG. 4 and transferred to the wrapping device 30. A recessed portion matching the contour of the container B is formed in the carrier C so that the container B is not displaced by the surrounding device 30.

The partial pasting device 10 is for pasting the label A on the flat outer surface _b1 of the container B shown in FIG.
It is mounted on the machine stand 12 shown in FIG. A large number of labels A are vertically packed in the label hopper 14. A transfer drum 16 is provided near the label hopper 14. The transfer drum 16 rotates in contact with the vacuum drum 18. Although both drums 16 and 18 are not shown, each of the drums 16 and 18 is provided with a large number of air suction holes on each circumferential surface so that the labels A can be sucked in by negative pressure and taken off one by one from the label hopper 14.

A paste rubber roll 20 rotates in contact with the other peripheral surface of the vacuum drum 18. Glue is supplied from a glue pot 23 to the circumferential surface of the glue rubber roll 20 via a glue roll 22. This glue rubber roll 20 applies glue to the label adhering to the circumferential surface of the vacuum drum 18. Also, the conveyor 8 of the vacuum drum 18
A finishing belt 24 is provided on the 0 side. This belt 24 is driven by a finishing roll 26.

The wrapping device 30 is for attaching _the label A to the gently curved outer surface b ₂ of the container B shown in FIG. 3 and the outer surface b ₃ perpendicular to the outer surface b 1, and
located downstream of

Details of the surrounding device 30 will be explained based on FIG. 1. A machine stand 32 is provided below the conveyor 80. The conveyor 80 has two belts 80a and 80
It is composed of b. A plurality of columns 34 are erected on the machine stand 32. Two cams 36 and 37 are fixed to the upper ends of these columns 34 by bolts 38 and 39. The pillar 34 is the container B placed on the carrier C.
has a height that allows the conveyor 80 to pass under the cams 36 and 37. Cams 36 and 37 are the fifth
As shown in FIG. 6 and FIG. 6, a curved surface 36 corresponding to the shape of the curved outer surface b ₂ and the orthogonal surface b ₃ of the container B, respectively.
a and a plane 37a.

At the center of the machine stand 32, belts 80a and 80b are installed.
Lifting platforms 40 and 42 that can be raised and lowered between the two are provided. The lifting platforms 40 and 42 correspond to the circumferential position of the container B according to the present invention, and the stopper 4 of the carrier C is located there.
0a and 42a are provided. Lifting platform 40 and 4
2 is an air cylinder 4 provided below the machine base 32
It is adapted to be raised and lowered by first actuators 4 and 46, respectively. Reflective photoelectric switches 48 and 50 are disposed on the sides of the conveyor 80 where the lifting tables 40 and 42 are located. When container B arrives on carrier C, these photoelectric switches 48 and 50 are reflected to container B and turn on.

Curved surfaces 36a and flat surfaces 37 of cams 36 and 37
Cam followers 52 and 54 consisting of rollers are shown in a.
are rotated by second actuators consisting of air cylinders 56 and 58, respectively. At the central axes 60 and 62 of the cam followers 52 and 54, the tips of the rods of the air cylinders 56 and 58 are attached to the mounting fittings 56.
a and 58a. This central axis 6
0 and 62 are a pair of extendable stays 6, respectively.
4 and 66 to struts 68 and 69. The air cylinders 56 and 58 are also connected to the support column 6.
8 and 69. The struts 68 and 69 are rotatably erected on the machine base 32 by pin shafts 70 and 71.

Furthermore, a synthetic resin squeeze 72 having an acute angle at the tip is fixed to the central shaft 60. Also, the central axis 62
A roller 74 is rotatably attached to. These skies 72 and rollers 74 move together with the cam followers 52 and 54, respectively. Springs 76 and 78 are tensioned between the central shafts 60 and 62 and the cams 36 and 37, respectively.

FIG. 7 is a sequence diagram of the apparatus of this embodiment.
Here, a sequence diagram of the cam 36 and the cam follower 52 will be explained as a representative. Between the control buses R and T, a photoelectric switch 48 (hereinafter referred to as PHS), a break contact of the third relay _R3 , and a coil portion of the first relay _R1 are connected in series. PHS
The make contacts of relay _R1 are connected in parallel.

Also, in order to operate the air cylinder 44,
The make contact of the PHS, the break contact of the relay _R3 , and the solenoid valve _SV1 of the air cylinder 44 are connected in series.

Further, in order to wait for the air cylinder 44 to rise completely, the make contact of the solenoid valve SV ₁ , the break contact of the relay R ₃ , and the coil portion of the on-delay timer T ₁ are connected in series. The coil section of timer T ₁ has the time-limited operation contact of timer T ₁ and relay R _2.
and the coil section are connected in parallel.

Next, in order to stroke the label, the make contact of relay _R2 , the break contact of relay _R3 , and the solenoid valve _SV2 of air cylinder 56 are connected in series.

Further, in order to return the cylinders 44 and 56 to their original positions, the make contact of the solenoid valve SV ₂ and the coil portion of the on-delay timer T ₂ are connected in series. The time-limiting operation contact of timer T ₂ and the coil portion of relay R ₃ are connected in parallel to the coil portion of timer T ₂ .

The operation of the labeling machine configured in this way will be explained.

As shown in FIG. 2, the container B transferred together with the carrier C by the conveyor 80 comes into pressure contact with the vacuum drum 18 at point P in FIG. 2, and a part of its flat outer surface b ₁ (see FIG. 3) is given the label A. Next, the label A is affixed to the container B over its entire outer surface _b1 by the finishing belt 24.

When the photoelectric switch 48 is closed by the container B carried to the location where the lifting platform 40 is located, as shown in FIG. 8, the solenoid valve SV ₁ of the air cylinder 44 opens and the lifting platform 40 is raised. , stoppa 4
0a protrudes between belts 80a and 80b and temporarily stops carrier C. When the lifting platform 40 further rises, the carrier C leaves the conveyor 80. When the lifting platform 40 is completely raised, the air cylinder 5
The solenoid valve SV ₂ of No. 6 opens, and the cam follower 52 rolls on the curved surface 36a as shown by the two-dot chain line in FIG. As a result, the squeeze 72 moves forward following the curved surface 36a, and presses the unattached portion of the floating label A onto the curved outer surface _b2 of the container B to attach it.

When the air cylinder 56 operates for a predetermined period of time, the skies 72 move backward and the elevator platform 40 descends. When the stopper 40a sinks between the belts 80a and 80b, the carrier C is transported by the conveyor 80 again.

The next operation of attaching the unattached portion of the label A to the outer surface _b3 of the container B using the cam 37 and the cam follower 54 is the same as the operation of attaching it to the outer surface _b2 .
Repeated explanations will be omitted.

In the above example, the cam is provided above the conveyor, but the cam may be provided below or on the side of the conveyor.

Also, a first actuator that operates the lifting platforms 40 and 42, and a stroking section 72 such as skies and rollers.
Although air cylinders have been illustrated as the second actuators for operating the actuators and 74, the present invention is not limited thereto, and other means such as solenoids may be used.

Further, the shape of the cam is just an example, and can be changed as appropriate by preparing another cam depending on the shape of the outer peripheral surface of the container and removing and attaching the bolts 38 and 39.

[Effects of the invention] As described above, according to the invention, even if the container has a complicated shape, a cam corresponding to the shape of the outer peripheral surface of the container is provided, and the caressing part moves according to this cam. Therefore, it has the excellent effect of being able to apply the label evenly without making pasting mistakes or leaving unattached areas.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a wrapping device of a labeling machine according to an embodiment of the present invention. FIG. 2 is a plan view of a labeling machine according to an embodiment of the present invention. FIG. 3 is a perspective view of a container with a label pasted by the labeling machine. Figure 4 is a perspective view of the carrier carrying the container. 5 and 6 are principal part plan views showing the operation of the caressing part of the wrapping device. FIG. 7 is a sequence diagram of the wrapping device of the labeling machine according to the embodiment of the present invention. Figure 8 is a time chart of its operation. A... Label, B... Container, b ₁ ... Part of the outer circumferential surface, b ₂ , b ₃ ... Remaining part of the outer circumferential surface, 10... Partial adhesion device (partial adhesion means), 30... Circumference Mounting device (circumfering means), 36, 37...cam, 40a, 42a...
...stopper (stopping means), 44, 46... air cylinder (first actuator), 48, 50...
Photoelectric switch (container detector), 52, 54...cam follower, 56, 56...air cylinder (second
actuator), 72...skies (rubbing part),
74...roller (patting section), 80...conveyor (transfer means).

Claims (1)

[Claims for Utility Model Registration] Partial adhering means 1 for adhering a part of the label A coated with glue by pressing it against a part _b1 of the outer peripheral surface of the container B
0, a transport means 80 for transporting the container B to which the label A is partially attached, and a circumferential attaching means 30 for attaching the remaining part of the label A to the remaining parts b ₂ and b ₃ of the outer peripheral surface of the container B by a cam. In the labeling machine, the cams 36 and 37 of the circumferential attaching means 30 have a shape corresponding to the outer peripheral surface shape of the container B to which the remainder of the label A is affixed, and
The wrapping means 30 is provided near a container detector 4 that detects the container B that has arrived at the wrapping position on the transfer path 80.
8, 50, stoppers 40a, 42a for stopping the container B at the circumferential position, and the cam 36,
37 and presses the remaining portion of the label A onto the remaining portions b ₂ and b ₃ of the outer peripheral surface of the container B;
2, 74, and the container detectors 48, 50 are connected to container B.
The first actuators 44, 46 actuate the stoppers 40a, 42a when the container B is stopped at the circumferential position, and the first actuators 44, 46 actuate the stoppers 40a, 42a when the container B is stopped at the circumferential position.
4. A labeling machine for specially shaped containers characterized by comprising second actuators 56 and 58 that actuate the second actuators 56 and 58.