JPH0212165Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a label attachment device, and more specifically, to a label attachment device that attaches an endless label around a cylindrical container. .

[Prior Art] In recent years, large and short bottles with a diameter of about 300 ml have been used as beverage containers, and these have a wide container made of a thin film tube made of heat-shrinkable resin that completely covers the outer periphery from the outside of the bottom of the bottle to the top of the shoulder. An endless ultra-thin cylindrical label is inserted.

This label is made by printing the desired amount on one side of the resin thin film sheet in advance, folding it in half, sealing the folded edges, and then cutting it into a predetermined width to form a cylinder. .

Currently, labels made in this way are inserted into each bottle one by one by a worker, heated, and then inserted into the bottle using the heat-shrinkable properties of the label material. .

[Problems to be solved by the invention] Therefore, the problem with the above conventional technology is that it is extremely inefficient, expensive, and uneconomical compared to automated tasks such as filling bottles with contents. The dot was hot.

In order to eliminate the above-mentioned problems, this idea
To provide a label attaching device that can automatically unfold and attach a folded endless label to a bottle.

[Means for Solving the Problems] The above-mentioned object of this invention is to provide a housing having a pair of side plates erected on both sides of a rectangular base, in which a pair of reverse threads are formed between the side plates with the center as a boundary. A total of four gears, one pair each, are pivotally supported in a screwed state on each upper surface of a pair of mounting pieces screwed into both sides of these feed screws in parallel. A spring is provided for each pair between two pairs of pins protruding from the four rotating shafts of each gear, and an elevating mechanism is provided vertically through the center of the base so as to be slidable. A cross-shaped label extrusion member is fixed to the lower end of the shaft, and a cam lever is provided horizontally, which is pivotally supported by a pivot member on the elevating shaft at the upper part of the base, returns with a spring, and whose rotation amount is limited by a stopper, levers protruding from two gears in a diagonal direction of each pair of gears are brought into elastic contact with each inner surface of a pair of L-shaped operating levers disposed opposite to the pivot member by means of the spring; established,
Furthermore, this is achieved by suspending and fixing arc-shaped label holding pieces to label holding piece mounting bases that are respectively fixed to the four rotating shafts at the lower part of the base.

[Function] When a folded thin cylindrical label is slightly expanded and inserted into two pairs of label holding pieces which are arranged flat in advance, this insertion state causes friction against the label holding pieces due to the self-flattening action of the label. It is held without falling.

Next, when the cam lever is tilted with a cam or the like against the elasticity of the spring through the pivot member around the lifting shaft, the operating levers that are protruding from the pivot member rotate outward from each other. Two levers, which are in elastic contact with each inner surface due to the elasticity of a spring, are rotated outward by the elasticity of the spring, and the label holding pieces are respectively opened along a substantially circular outline and inserted in a flat state. The cylindrical label is also expanded into a substantially cylindrical shape.

After that, the cylindrical label in the expanded state is pushed down through the cross-shaped label push-out member by lowering the elevating shaft aiming at the top of the bottle placed at the bottom of the label holding piece, and the cylindrical label is placed slightly loosely on the bottle. It can be fitted and installed.

In addition, by rotating the parallel pivot feed screw with reverse threads formed at the center, the opposing distance between the pair of mounting pieces can be changed, and the mutual distance between the label holding pieces can be changed according to the diameter of the label being used. It is compatible with changes in bottle diameter.

[Example] As shown in FIGS. 1a and 3b to 3a and 3b, the label attaching device of this invention includes a housing 1, a label holding mechanism 2, an operating mechanism 3, and a label holding part 4.
It is almost composed of.

As shown in FIGS. 1 a, b and 2 a, b, the housing 1 has a central portion held horizontally and parallelly between a pair of side plates 13, 13 facing each other on a base 11 and having a ceiling plate 12 attached thereto. A pair of feed screws 14, 1 which are threaded in opposite directions at the border.
4 is installed as a pivot.

Further, an elevating shaft 16 is attached to the housing which penetrates the ceiling plate 12 and the base 11 and has a cross-shaped label extrusion member 15 attached to the end on the back side of the base 11 so as to be freely slidable.

As shown in FIGS. 1a and 3b to 3a and 3b, the label holding mechanism 2 has a pair of horizontal and parallel openings in opposite directions so that the feed screw 14 can be screwed into the mechanism. What are the screw holes 22 and the screw holes 22?
Two pairs of rotating shafts 24, 24 inserted into the through-shaft holes 23 of the pair of mounting pieces 21, each having a pair of through-shaft holes 23 that are opened vertically and parallel to each other by 90 degrees.
A pair of gears 25 that mesh with each other on the mounting piece 21 are pivotally supported at one end of the mounting piece 21 .

Further, the shaft 24 protrudes toward the back side of the base 11 through a hole 17 made in the base 11.
A pair of label holding piece mounting bases 26 are fixed to the other end, and the other end of a pair of levers 27 is attached to one pair of diagonal rotating shafts 24 so that the center lines of the levers are parallel to each other. A pin 28 is attached to each rotating shaft 24, and a spring 29 is attached to the end of the pin 28.

The operating mechanism 3 is shown in Fig. 1 a, b and Fig. 2 a, b.
As shown in FIG. 2, a pair of operating levers 32 that engage with the roller 5 attached to the end of the lever 27 are attached to one end of a mounting member 31 that is rotatably inserted into the lifting shaft 16, and a pair of operating levers 32 are attached to the other end of the mounting member 31 that is rotatably inserted into the lifting shaft 16. is a mounting member 31 to which a cam lever 33 that is in contact with a cam D (not shown) is attached.
A spring 35 is attached between the side plate 13 and the end of a mounting bracket 34 that protrudes from the side surface in the same direction as one of the operating levers 32.

As shown in FIGS. 1A and 3B and 3A and 3B, each label holding part 4 is curved in the width direction so as to form a part of an arc on a mounting base 26 located below the base 11. long label holding piece 41
It consists of

Although this label attaching device is not shown,
The cam lever 33 is moved up and down by a vertical movement mechanism that moves the elevator shaft 16 up and down, and the cam lever 33 is in direct contact with the cam D via a roller 36 attached to its end.
In the figure, 18 is a stopper of the cam lever 33.

The label attaching device A of this invention is constructed as described above, and is located on the side of the belt conveyor 6 as shown in FIG. When the bottle B placed on the bottle stand 9 is sent to a predetermined position, it is taken out of the belt conveyor by the bottle chuck 8, and from this state, the operation described later is performed to place the bottle in the label holding section in advance. The label C attached to the container 4 is transferred to the bottle B side by the label push-out member 15 at the end by lowering the elevator shaft 16. This series of operations will be described in detail below.

As shown in FIG. 1a, FIG. 2a, and FIGS. 5a to 5e, the cam lever 33 of this label attaching device A is
is in contact with the stopper 18, that is, the roller 36 of the cam lever 33 is in the non-action area of the cam D, and the cam lever 33 is rotated counterclockwise toward the plane of the paper by the spring 35 and comes into contact with the stopper 18. At this time, the operating lever 32 engages with the lever 27 via the roller 5, and rotates the gear 25 to which the lever 27 is attached clockwise toward the plane of the paper against the elasticity of the spring 29. One gear 25 meshing with the gear also rotates counterclockwise as the gear rotates.

The gear 25 is rotated by the amount of rotation of the gear 25 via the rotating shaft 24, and the label holding piece mounting base 26
is rotated in the same direction as the gear 25, and the label holding piece 41, which is eccentrically attached to the label holding piece mounting base 26, is rotated to a position where the curved inner surfaces are facing each other in pairs as shown in FIG. 1a. make it move.

At this position, the inner volume of the label holding part 4 drawn along its outer periphery is the smallest, so
An operator or a well-known label spreading mechanism set based on a series of sequences quickly checks the top and bottom of the label on this holding part as the endless label C is lowered as the device A is lowered, as shown in Figure 5b. Install it.

As the cam D rotates, Fig. 1a, Fig. 2a
1b and 2b, that is, when the action area of the cam D starts to come into contact with the roller 36 of the cam lever 33, the cam lever 33 moves clockwise toward the plane of the paper against the elasticity of the spring 35. As the operating lever 32, which is integrally attached via the mounting member 31, similarly rotates clockwise, the spring 29 applies a force to rotate counterclockwise. Lever 32 that was
Since the rotation preventing force is removed, the gears 25, which are engaged with each other by the spring 29, rotate in the direction of the arrow until the pins 28 are parallel to each other.

The gear 25 is rotated by the amount of rotation of the gear 25 via the rotating shaft 24, and the label holding piece mounting base 26
The label holding piece 41, which is eccentrically attached to the label holding piece mounting base 26, rotates in the same direction as the gear 25, and the label holding piece 41, which is eccentrically attached to the label holding piece mounting base 26, rotates in the same direction as the gear 25.
Spread out to hold the center part of the equally divided length,
Expand the label C into a substantially cylindrical shape as shown in FIG. 5c.

Next, at this point, the bin B that has been sent on the belt conveyor 6 is already placed in a predetermined position by the bin chuck 8, and the up and down mechanism 7 moves the bin B to the housing 1.
The position of is the same as in Fig. 5b, but the lifting shaft 16
only begins to descend. In cooperation with this lowering movement, the bottle chuck 8 separates from the bottle B, and during this time, as shown in FIG. The cross-shaped label push-out member 15 slides on the holding piece and is gradually inserted into the bottle B with the cooperation of the bottle chuck 8.

During this transfer operation, as shown in FIG. 2b, the label holding mechanism 2 operates slightly due to the small non-active area of the cam D, and the label holding piece 41 that holds the label C narrows inward, making transfer easier. Make it.

As the elevating shaft 16 descends, the label C transferred from above the label holding piece 41 to the bin B by the label extruding member 15 attached to the lower end of the elevating shaft 16 is
The bin chuck 8 moves up and down as shown in Figure 5e.
It is completely inserted into the predetermined position of bottle B.

After the label C has been inserted, the bottle B is placed on the belt conveyor 6 again by the bottle chuck 8 and sent into a heating chamber (not shown), where it and the bottle B are heated for 150 minutes.
Heat to ~200℃ and heat shrink the label to make bottle B.
Hold it in close contact with the outer periphery of the

By performing this operation cyclically and in accordance with a certain sequence, the attachment of the label C to the bottle B can be almost completely automated.

In addition, depending on the size of the bottle, a pair of mounting pieces 21
By rotating the pair of feed screws 14 with a square wrench driver or the like, the mounting piece 21 is moved back and forth by an equal amount in parallel in the forward and reverse directions, thereby changing the position from the size shown in FIG. 6a to the size shown in FIG. It is possible to cope with a certain degree of size up to the size shown in b.

[Effects of the invention] This invention involves inserting a folded thin cylindrical label into two pairs of label holding pieces that are arranged flat in advance, slightly expanding the label, and then using a cam or the like to push a cam lever against the elasticity of a spring. When the levers are tilted about the lifting shaft via the pivot members, the operating levers protruding from the pivot members rotate outward from each other and come into elastic contact with the inner surfaces of these operating levers due to the elasticity of the springs. The two levers rotate outward from each other due to the elasticity of the spring, and the label holding pieces are respectively opened along approximately circular contours, and the cylindrical label inserted in a flat state is also expanded into an approximately cylindrical shape. Ru.

After that, the cylindrical label in the expanded state is pushed down through the cross-shaped label push-out member by lowering the elevating shaft aiming at the top of the bottle placed at the bottom of the label holding piece, and the cylindrical label is fitted onto the bottle. installed.

Therefore, an endless label can be attached to a columnar member such as a bottle reliably, quickly, and evenly, and the spacing between the label holding pieces can be changed by rotating the feed screw according to the size of the label. It has the effect of allowing multiple types of labels of different sizes to be attached to bottles with good compatibility.

[Brief explanation of drawings]

The figures all show one embodiment of this invention; Figure 1a is a partially cutaway perspective view of the label attaching device in which the label holding mechanism is in a state before label holding, and Figure 1b is the same. FIG. 2a is a plan view of the housing in the same state as in FIG. 1a with the ceiling panel removed; FIG. 2b is a plan view of the same state shown in FIG. 1b; Figures a and b are perspective views of the main parts of the label attaching device seen from the bottom side, Figures 4 a and b are vertical cross-sectional views of the central part of the state shown in Figures 1 a and b, and Figures 5 a to e are FIGS. 6a and 6b, which are explanatory diagrams of the procedure for attaching labels to bottles, are schematic plan views showing a state in which the interval between label holding pieces is varied. 1...Housing, 11...Base, 16...
Lifting shaft, 2... Label holding mechanism, 21... Mounting piece, 25... Gear, 26... Label holding piece mounting base, 28... Pin, 29, 35... Spring,
3... Actuation mechanism, 32... Operation lever, 33...
Cam lever, 4... Label holding part, 5, 36...
Laura, B... bottle, C... label, D... cam.

Claims (1)

[Scope of utility model registration request] In a housing 1 having a pair of side plates 13, 13 erected on both sides of a rectangular base 11, a pair of feed screws 14, 14 with reverse threads formed between the side plates 13, 13 with the center as a boundary are parallel pivoted. At the same time, a total of four gears 25, 25, one pair each, are pivotally supported in a screwed state on each upper surface of a pair of mounting pieces 21, 21, which are screwed into both sides of these feed screws. and each of these gears 25, 25
A spring 29, 29 is provided between two pairs of pins 28, 28 protruding from the four rotating shafts 24, 24 of each pair, and further extends vertically through the center of the base 11 to slide. A cross-shaped label push-out member 15, 15 is fixed to the lower end of the vertically arranged vertical axis 16, and the vertical axis 1 at the upper part of the base 11 is fixed to the vertical axis 16.
6 with a pivot member 31 and a spring 35
A cam lever 33 is provided horizontally and the amount of rotation is limited by stoppers 18, 18, and a pair of cam levers 33 are provided on each inner surface of the L-shaped pair of operating levers 32, 32, which are provided opposite to the pivot member 31. Among the gears 25, 25, levers 27, 27 protruding from the two gears 25, 25 in the diagonal direction are provided in elastic contact with the springs 29, 29, and the four gears are further provided at the lower part of the base 11. A label attachment device in which arc-shaped label holding pieces 41, 41 are suspended and fixed to label holding piece mounting bases 26, 26, respectively, which are fixed to rotating shafts 24, 24 of the invention.