JPH04142239A - Labeling machine - Google Patents

Abstract

PURPOSE:To effect a smooth switching of a container in the direction of the rotation on its axis with a simple structure and permit the rotation angle of the container to be set easily by providing a rotary shaft on a mounting stand, a plurality of idle rollers on the rotary shaft, a driving plate, a friction plate for producing a rotary force in contact with the driving plate and a plate cam for restraining the rotation in contact with idle rollers. CONSTITUTION:A mounting stand 32 of a transfer device 30 is provided with its rotary shaft 34 freely rotatably supported on a rotary bed 31 via bearings. An intermediate disk 35 is fixed to an intermediate part of the rotary shaft 34 and control rollers 36 are provided symmetrically about the center of the intermediate disk 35. A driving disk 37 is fixed to the lowest end of the rotary shaft 34. A plate cam 38 mounted as high as the roller 36 is the member which stops the rotation of the rotary shaft 34 by contacting with a pair of rollers 36 simultaneously. A friction plate 39 provided as high as the driving disk 37 is the member which imparts a rotary force to the rotary shaft 34. The friction plate 39 is urged against the peripheral face of the driving disk 37 by a push spring 60.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a labeling machine that attaches a label to a container or the like by applying forward or reverse rotation.

<Prior Art> Currently, with the diversification of container and label shapes, labeling machines have been proposed that apply labels to containers by applying forward or reverse rotation to the container.

Labeling machines that attach labels to multiple locations on the front and back of containers have also been proposed.

In this type of labeling machine, it is necessary to change the direction of rotation of the containers while they are moving, and for this reason conventionally, the direction of rotation has been changed using a combination of complex links and gears.

Problems to be Solved by the Present Invention> The conventional labeling techniques described above have the following problems.

<B> The structure and mechanism for switching the rotation direction become extremely complicated.

Therefore, there are problems with durability during high-speed operation, and the number of parts increases as the mechanism becomes more complex, making the labeling machine more expensive.

Kuguchi> Metallic noises from the gears and cam mechanisms are being generated, and a noise problem has been pointed out.

<Object of the present invention> The present invention was made to solve the above-mentioned problems, and its purpose is to have a simple structure, to smoothly switch the direction of rotation of the container, and to enable the rotation direction of the container to be changed smoothly. To provide a labeling machine whose rotation angle can be easily set.

<Means for Solving the Problems> That is, the present invention is a labeling machine that attaches a label to the circumferential surface of a container using a label supply means placed in the middle of a transport path that revolves the container. A rotating shaft is provided on the mounting table, a plurality of idling rollers are provided on the rotating shaft, and a drive plate is integrally provided in the middle of the rotating shaft, and friction is generated by contacting the drive plate on one side of the rotating shaft where the rotating shaft advances. The present invention is characterized in that a plate is arranged and a plate cam is arranged on one side of the rotating shaft in which the rotating shaft moves to engage with the idling roller and restrain its rotation.

<Configuration of the present invention> The present invention will be described below with reference to the drawings.

<A> Labeling machine Figure 1 shows an example of a labeling machine.

In this embodiment, a case will be described in which two types of labels L1 and L2 are attached to the upper part of the container 10 and the lower part of the container 10, respectively, with their centers coincident with each other.

In FIG. 1, 20 is a supply path, 21 and 22 are a supply star and a discharge star having a plurality of recesses on the circumferential surface, 23 is a guide plate disposed opposite to the circumferential surface of each star 21 and 21, and 2
4 is an unloading path.

30 is a transfer device that restrains the top and bottom of the container 10 and transfers it;
This will be discussed later.

40.41 is the first suction type for pasting labels L1 and L2.
and a second sticking drum, which is disposed midway through the transfer device 30.

50 to 53 are brushes installed on the left and right sides of the container 10 in the transport direction.

<Open>Label pasting means In the drawing, labels L1. Although the device for supplying L2 is omitted, examples of label supply methods include, for example, a type in which the label is cut from the tape just before pasting, a type in which a backing type tag label is supplied, or a type in which the label is supplied in a cassette. A known label supply method, such as a type that supplies cut labels stored therein, can be applied.

<C> Transfer device As shown in FIG. 2.5, the transfer device 30 has a rotating bed 31,
It consists of a plurality of mounting tables 32 rotatably arranged at regular intervals around the periphery of a rotating bed 31, and a plurality of pressers 33 that are positioned directly above each mounting table 32 so as to be movable up and down and press down on the upper part of the container 10.

A rotating shaft 34 of the mounting table 32 is rotatably supported on a rotating bed 31 via a bearing.

An intermediate plate 35 is fixed to the middle of the rotating shaft 34, and a braking roller 36, 36 is attached to a symmetrical position of the intermediate plate 35.

Further, a drive plate 37 is fixed to the lowermost part of the rotating shaft 34.

In the figure, numeral 38 is a plate cam installed at the height of the roller 37, and is a member whose purpose is to stop the rotation of the rotating shaft 35 by simultaneously abutting the pair of rollers 37 and 37.

39 is a friction plate disposed at the height of the drive board 37, and is connected to the rotating shaft 3.
This is a member whose purpose is to apply rotational force to 4.

The friction plate 39 is biased by a pressure spring 60 in a direction in which it presses against the circumferential surface of the drive plate 37 .

2> Example of installation of friction plates The direction of rotation of the rotating shaft 34 is determined by the placement position of the friction plates 39, and an example of the placement is shown in Figure wJ3.

That is, when viewing the labeling machine from above and wishing to rotate the rotary shaft 34 clockwise, the friction plate 39 is placed on the right side in the direction of movement of the rotary shaft 34, and conversely, when it is desired to rotate the rotary shaft 34 counterclockwise, the friction plate 39 is placed on the right side of the rotary shaft 34. The friction plate 39 may be placed on the left side in the direction of movement.

<E> Installation example of plate cam FIG. 4 shows an example of the arrangement of the plate cam 38.

The plate cam 38 is disposed over a section where rotation of the rotary shaft 34 is desired to be stopped, and the plate cam 38 may be installed on either the left or the right in the direction of movement of the rotary shaft 34.

In this embodiment, a plate cam 38 is arranged so that the rotation of the rotating shaft 34 can be stopped when the rotating shaft 34 passes through the first sticking drum 40 and the second sticking drum 41, respectively.

Therefore, the rotation of the rotating shaft 34 is restrained in the section where the plate cam 38 is present, and the rotating shaft 34 is allowed to rotate in the section where the plate cam 38 is not present and the friction plate 39 is present.

<F> Method for setting the rotation angle of the rotary shaft The rotation angle of the rotary shaft 34 can be freely set by selecting the diameter of the drive plate 37, the positions of the plate cam 38, the friction plate 39, etc.

<Effect> Next, the method of attaching the label will be explained.

<B> Container Supply In FIG. 1, container 1 is transferred from supply star 21 to mounting table 32.
0 is placed, the presser 33 shown in FIG. 5 descends to restrain the upper and lower portions of the container 10.

<Opening> At the time of label adhesion, the container 10, which is restrained at the top and bottom, moves toward the first adhesion drum 40.

During this time, as shown in FIG. 4, the rollers 36 and 36 that are integral with the rotating shaft 34 come into contact with the circumferential surface of the plate cam 38 to prevent the container 10 from rotating.

The container 10 that continues to move in a non-rotating state is the first sticking drum 4
0, the label L1 is glued to the top of the container 10.

In this case, the timing is set so that the center portion of the entire length of the label L1 is adhered to the container 10.

Furthermore, when the label L1 is attached, rotation is applied to the rotating shaft 34 due to the contact between the drive plate 37 and the friction plate 39 as shown in FIG. 5, but since the roller 36 contacts the plate cam 38 and is braked, The drive plate 37 slips between the friction plate 39 and the rotation of the rotating shaft 34 is restricted.

Therefore, the label L1 can be adhered to the container 10 in a non-rotating state.

<C> When the clockwise label L1 of the container is pasted, the rollers 36 and 36 are removed from the plate cam 38, as shown in FIG. is drive board 3
7, the rotating shaft 34 rotates to the right.

As a result, the container 10 shown in FIG. 1 is rotated 180 degrees to the right, and as a result, the brush 50 strokes and adheres half of the label L1.

When the counterclockwise rotating shaft 34 of the container passes through the cloth-wrapped section shown in Fig. 3.4,
A friction plate 39 disposed on the left side of the rotation shaft 34 contacts the drive plate 37, and the rotation shaft 34 rotates to the left.

This causes the container 10 shown in FIG. 1 to rotate 180° to the left, so that the brush 51 strokes the remaining half of the label L1.

As a result, the label L1 is attached to the entire circumference of the upper part of the container 10.

When the pasting of the label L1 is completed, as shown in FIG. 4, the rollers 36 and 36 come into contact with the plate cam 38 again, and the rotating shaft 34 continues to rotate until the second pasting drum 41 completes pasting the label L2. is restrained.

<E> When the container 10 to which the second label is applied passes through the second adhesion drum 41, the label L2 adheres to the lower part of the container 10, and the container 10 rotates in the right and left directions and moves along the way. Each brush 52.53 in the section
pats the label L2 and completes the pasting.

<To> After pasting the first and second labels Ll and L2 on the container carrying out container 10, the container 10 is transferred from the transfer device 1130 to the carrying out star 2.
2 and then sent to the unloading path 24.

<Other Example 1> In the above example, each label L1 is placed on the same perpendicular line of the container 10.
, and the case where the centers of L2 are aligned and pasted is explained.

In this embodiment, a case will be described in which the labels Ll and L2 are attached at different positions with respect to the perpendicular line of the container 10.

FIG. 6 shows a case where the labels Ll and L2 are pasted with a 90° shift, and a pair of rollers 36.3 are installed on the upper and lower sides of the intermediate board 35, respectively.
6, and a cam plate 38 shown in FIG. 4 may be disposed over the range that restricts the rotation of the rotating shaft 34.

Moreover, when it is desired to set the adhesion positions of the labels L1 and L2 to a position other than 90', the intersection angle θ of the lines connecting the upper and lower rollers 36, 36 may be changed.

<Other Example 2> The present invention can also be applied to the case where three or more labels are attached to one container 1o.

<Effects of the Present Invention> Since the present invention is as described above, the following effects can be obtained.

<B> The accuracy of label attachment is greatly affected by the timing at which the container and label meet.

In view of this point, the present invention can stop the rotation of the container at the point where the label and the container meet.

Especially when a plurality of labels are attached to one container, high attachment accuracy can be ensured.

<Mouth> Since gears with a complicated structure can be used for the rotation means and rotation stop means of the rotating shaft, the structure can be simplified and the operation is quiet.

Since it is easy to set the direction and angle of rotation of the container, it is ideal for attaching long labels and deformed labels that are easily misaligned.

[Brief explanation of the drawing]

Figure 1: Plan view of the Nilabeling machine Figure 2: A partially cutaway perspective view of the transfer device Figure 3: Plan view for explaining an example of the arrangement of friction plates Figure 4: An example of the arrangement of plate cams Figure 5: A cross-sectional view taken along the line V-V in Figure 1 Figure 6: A plane view of the intermediate board for explaining other embodiments≧' Figure 2

Claims (1)

[Claims] (1) In a labeling machine that affixes a label to the circumferential surface of a container using a label supply means placed in the middle of a transport path that revolves the container, a rotating shaft is provided on the mounting table that carries the container and revolves, and the rotation A plurality of idling rollers are installed on the shaft, a drive plate is integrally installed in the middle of the rotating shaft, and a friction plate that contacts the drive plate to generate rotational force is placed on the moving side of the rotating shaft. A labeling machine characterized by a plate cam that engages with an idling roller and restricts its rotation.