JPS6342848A - Processing equipment for packaging vessel with spout - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a processing device for a packaging container filled with liquid foods such as juice and milk, and more specifically, a processing device for processing a packaging container (A) during molding. a) A spout made of synthetic resin (
The present invention relates to a device that attaches B) and then welds it to a packaging container (A), and molds the bottom of the container to form a bottomed container suitable for filling with liquid food.

[Conventional technology]

Conventionally, when performing the above series of processing, the work of attaching the spout (B) to the opening hole (al) of the packaging container during molding and the work of welding it to the packaging container were performed by molding the bottom of the packaging container. It is carried out after the bottom (for example, JP-A-60)
-220739).

[Problem that the invention seeks to solve]

In the case of such a layout, the bottom shown in (a) in Figure 16 has already been assembled by the time the spout (B) is attached to the opening hole (8) and welded to the packaging container. , there is an extremely high risk of dust entering the packaging container. However, the situation in which foreign matter such as dust gets mixed into this type of food packaging is a serious problem and must be avoided at all costs.

The present invention aims to avoid this fatal situation.

[Means for solving problems]

In the present invention, a spout attachment device (E) for fitting a synthetic resin spout (B) into an opening hole (II) of a packaging container (A), and an opening hole (
The spout (B) attached to a) is attached to the packaging container (A)
A welding device (F) for welding the bottom of the packaging container (A) is installed in front of the bottom forming device (D) of the packaging container (A).

[For production]

Therefore, at the time of attaching the spout I-(B) to the opening fat or welding it to the packaging container, the packaging container (A) remains a bottomless cylinder as shown in FIG. Even if dust or the like gets into the container, it can be easily removed by simply leaning the container against it, for example.

〔Example〕

Embodiments of the present invention will be described based on the accompanying drawings.

The device shown in FIG. 1 (D) is a bottom forming device for assembling the bottom of a cylindrical packaging container (A) that is in the process of being formed, and includes a spout attachment device (E) and a welding device (F) described below. A cylindrical packaging container with a spout (B) attached (
A) [Fig. 13] is fed to the mandrel (11) mandrel (2) in Fig. 12 (1), and this mandrel (1) is rotated intermittently by 60 degrees until it reaches the removal position f (IV). In between, a bottom is formed as shown in FIG. 16(a').

That is, a cylindrical packaging container with a spout (A
) is inserted into the core metal (2) of the mandrel (11) at (1) in Fig. 12, and is sent to the next heating position (II) by the rotation of the mandrel (11).
3) is provided to heat the bottom of the cylindrical packaging container (A). Next, Mandrel +11
is further rotated and sent to the processing position (III). A folding device (
4) and a guide bag = (5) are provided, and while the cylindrical packaging container (^) passes through this, the bottom is bent at a predetermined position to form the bottom, and the bottom is formed while the cylindrical packaging container (^) is still hot. It is sent directly below the squeezing device (6) at position (III). Then, during the temporary stop of the mandrel fi+, the pressing device (6
) is lowered, and the bottom part folded by the previous folding device (4) and guide device (5) is attached to the mandrel (2).
The bottom is molded as shown in FIG. 16(a'). Next, by rotation of the mandrel fil, the packaging container (A') with a molded bottom is sent to a delivery position (N), where it is taken out from the mandrel (2) by a delivery device (not shown) and sent to the next process. The contents (liquid food) are sent to the filling process.

In this way, during one rotation of the mandrel (11), the bottom (a) of the cylindrical packaging container (A) is formed and processed into a shape suitable for filling with liquid food as shown in Figure 16. Ru.

In the present invention, a spout attachment device (E) and a spout welding device (F) are installed in front of the bottom molding device W (D). That is, these two devices (E) and (F) are connected to the turret (7°) located in front of the bottom forming device (D).
2, and is located 90 degrees out of phase as shown in FIG.

The turret (7゛) has four outer mandrels (7) spaced apart by 90 degrees in a cross shape as shown in Fig. 2, and the turret (7゛) is attached to the shaft (8). ), and this turret (7'
) The respective stopping positions of the outer mandrel (7) due to the intermittent rotation of the outer mandrel (7) are called the first station (S, ), the second station (h), the third station (S3), and the fourth station (S9), respectively.

Each outer mandrel (7) has a container holding portion to hold the packaging container (A) expanded into a cylindrical shape. In the example, a case where the packaging container (A) has a rectangular tube shape is shown,
The container holding portion of the outer mandrel (7) is also constructed by arranging four rails (9) having a U-shaped cross section so as to be located at the four corners of a square. A square tubular packaging container (A) is inserted into this container holding part, and by intermittent rotation of the turret (7'), the first station (Ss), the second station (SZ), and the third station (Ss) are moved. , and returns to the first station (Sl) via the fourth station (Ss).
During this time, predetermined work is performed at each station. Second
At the station (S2), the opening hole [a] of the packaging container (A) is
) The work of attaching the hesbout (B) is carried out at the third station (S3), and the work of welding the spout (B) attached at the second station (S2) to the packaging container (A) is carried out at the fourth station (S4). Inspection and removal of defective products are performed, which will be explained later.

The place facing the second station (S2), that is, the second station
A spout attachment device (E) is provided at the rear portion in the figure.

As shown in FIGS. 3 and 4, this device (E) has an axis αω
A pad (rotation) is placed at the tip of the lever αυ that rotates around .
When a suction force is applied to the suction hole (12a) of the pad (2), the spout (B) is attracted as shown in FIG. In order to rotate the lever αD around the axis QOI, in the embodiment, the lower end of the Rondo side is pivotally connected to the other end of the lever aυ, and its upper end is rotated around the axis αD as shown in Fig. 2.8. A case is illustrated in which the cam follower αe of the lever α is engaged with the cam plate surface. That is, as the cam plate 0η rotates in one direction together with the shaft Ol, the position of the cam follower 0[9 engaged with the cam plate 0η changes, thereby causing the lever 09 to swing around the shaft (B). , so that loft 0 can be moved up and down. The pad (
The lever αυ with 2) pivots about the axis Ql.

The pad (2) traces a circular arc trajectory by the rotation of the lever a, and in the embodiment, the holder α9 is installed on this trajectory, and the outer mandrel (7) moves the pad (2) to the second station (S2). The uncovered cylindrical packaging container (^
) is temporarily transferred to this holder aI, and the spout (B) is attached here. However, it is also possible to attach the spout (B) at the second station (S) while holding the packaging container (A) on the outer mandrel (7). However, in this case, the spout (B) can be rotated around the axis aΦ. The shape of the lever αυ and the outer mandrel (7) is adjusted so that the lever aυ and the pad ω attached to its tip do not collide with the outer mandrel (7).
It will be necessary to devise ways of doing things.

In the embodiment, as a means for transferring the packaging container (A) carried to the second station (S2) by the intermittent rotation of the turret (7') from the outer mandrel (7) to the holder at the rear thereof, the method shown in FIG. 9 is used. As shown in FIG. 10, a pair of container pushing levers (to) and container pushing levers (21) are arranged before and after the outer mandrel (7) in the second station (S2), and both levers (To), block (20a) with (21) attached,
(21a) can be integrally slid along one guide rod (22) arranged in the front-rear direction of the outer mandrel (7).

In order to make both blocks (20a) and (21a) integrally slide along one guide rod (22), both blocks (20a) and (21a) are connected by one air cylinder (23). Keep both blocks (20a)
, (21a), one block (21a) may be slid along the guide rod (22).

In addition, as a means for sliding the block (21a) along the guide rod (22), the block (21a) and the lower end of a lever (not shown) are pivotally connected, and this lever is attached to the shaft type 0. An example of this is the case where the cam plate is oscillated by the rotation of another cam plate (not shown) fixed to the cam plate.

Meanwhile, the third station of the outer mandrel (7) (
S, ), that is, in the rear part in FIG. 2, there is a spout l-(B ) to the packaging container (A) is provided.

The welding device (F) in the embodiment is an ultrasonic sealer, and is placed directly above a prismatic pedestal (24) facing the third station (S3), and includes a converter (25a), A main body (25) consisting of a booster (25b) and a horn (25c) slides along a guide rod (25d) extending downward.

The spouted packaging container (A), which has been conveyed to the third station (S,) by the intermittent rotation of the turret (7'), is transferred from the outer mandrel (7) to the pedestal (24) behind it.
In the embodiment, as means for transferring to
As shown in the figure, there are container pushing levers (
26) and a container return lever (27) are arranged as a pair, and both levers (26).

Block (26a) with (27) attached, (27
a) arranged in the front and back direction of the outer mandrel (7) 1
It is designed so that it can be slid integrally along the guide rod (28) of the book. Both blocks (26a), (27a)
In order to slide the blocks (26a) and (27a) together along one guide rod, connect both blocks (26a) and (27a) with one air cylinder (29), and
6a).

It is preferable that one of the blocks (27a) is slid along the guide rod (28). In addition,
In order to integrally slide the block (27a) along the guide rod (28), both blocks (26a) are required.

(27a) are connected by one air cylinder (29), and one block (27a) of both blocks (26a) and (27a) is preferably slid along the guide rod (28). . As a means for sliding the block (27a) along the guide rod (28), for example, the block (27a) and the lower end of a lever (not shown) are pivotally connected, and this lever is fixed to the shaft Ql. An example of such a case is that the cam plate is oscillated by rotating another cam plate (not shown).

In other drawings, (30) (Figures 1, 2, and 9) is a packaging container (
A) is transported to the first station (S, ), the packaging container (A) is pushed into the outer mandrel (7) waiting there, and the packaging container (A) is transferred to the second station (S2) and the third station. (S3), a conveyor that pushes it out of the outer mandrel (7) when it returns to the first station (S, ) after passing through the fourth station (S4) and conveys it to the bottom forming device f (D);
A pushing member (31) is attached to the ceno. The packaging container (A) is pushed by the pushing member (31) and transported to the first station (S+), where it is pushed into the waiting outer mandrel (7), and this is transferred to the second station. (Sr), 3rd station (S:l), 4th station (S,)
When it returns to the first station (S,) again, it is pushed out from the outer mandrel (7) by the pushing member (31) and can be transported to the bottom forming device (D).

In addition, as shown in Fig. 1, the outer mandrel (7)
and its shaft (8), lever Q of spout attachment device (E)
The axis (lΦ) of D, the pad (2), the conveyor (30), the receiver (24), and the main body (25) of the ultrasonic sealer are all tilted at a predetermined angle with respect to the horizontal or vertical direction. The reason for this is to correspond to the arrangement of the mandrel (1) of the bottom molding device (D) that molds the bottom (ao), and is not particularly related to the present invention.In other words, the present invention Of course, the present invention can also be applied to a case where the outer mandrel (7) and its axis (8) other than those shown in FIG. 1 are not tilted for convenience.

Next, the operation of the apparatus for processing a packaging container with a spout shown in the embodiment will be explained in detail together with other related apparatuses.

As mentioned above, the packaging container (A
) is moved to the first station (
S+), where it is pushed into the outer mandrel (7) of the turret (7゛) waiting there. In this case, the packaging container (A) is transported with the opening hole (a) facing downward, and is pushed into the outer mandrel (7) of the first station (S,) as it is.

Then, the tar left (7') is 9 with the axis (8) as the center.
When the packaging container (A) is rotated 0 degrees clockwise, it is carried to the second station (S8), but at that time it appears rotated by 90 degrees from the state where it was located at the first station (S+). be. Therefore, the second station (S2)
The opening hole (al is shown in FIG. 2) of the packaging container (A).

It will be located on the left side of Figure 9. In addition, the four corners of the square tubular packaging container (^) are attached to the outer mandrel (
7), which are held by four rails (9) with a double-shaped cross section.

On the other hand, there is a spout mounting device (E) at the rear of the second stage sink (S2), and its lever αυ is rotated about the axis QllI from the position indicated by the solid line in Fig. 6(a) to the position indicated by the chain line in the same figure. let Then, the pad attached to the tip of the lever αD also moves from the position indicated by the solid line in FIG. 6+a) to the position indicated by the chain line in the figure.

Therefore, the spout (B) is attracted to the pad (goods) by the suction force acting on the suction hole (12a), and it is carried from the position indicated by the solid line in Figure 6+8 to the position indicated by the chain line in the figure. . In addition, the spout (B) is the fourth
They are sent in a line from another place by an air conveyor (C) or the like indicated by a chain line in the figure, and the pieces are taken out one by one by suction with a pad ω starting from the one located at the end of the conveyance path.

The moment the spout (B) is brought to the position indicated by the chain line in Fig. 6(a) by this pad hitting, the second station (S2)
The packaging container (A) that was waiting at the container push lever (
) [Figure 9, Figure 1θ] shows the outer mandrel (
7), and a part of the container on the opening hole (a) side faces the holder (toward) as shown in FIG. 6(b).
pushed inside. Therefore, the spout (B), which is adsorbed by the pad replacement, is located inside the square tubular packaging container (A) and faces the opening hole (a) thereof.

Therefore, as shown in Fig. 6 (C), when lever ■ is slightly rotated clockwise around axis a, the spout (B), which is attracted to the pad, will move from the packaging container (
A) is pushed into the opening hole (a), and at that moment the suction force of the suction hole (12a) is cut off, and the lever QO is slightly rotated counterclockwise about the shaft. Then, the subau (B) is attached to the opening hole (a) as shown in FIG. 6(d) and FIG. 15. In this case, since the plurality of locking claws (b''') shown in FIG. 14 or 15 engage with the outer surface of the packaging container (A) on the outside of the opening hole (a), the opening hole ( The spout (B) attached to the shaft a) will not come off.In the case shown in the embodiment, the spout (B) attached to the shaft a) is then attached to the shaft a as shown in FIG.
The lever αD is made to reciprocate twice around [[]. This is done by hitting the spout (B) attached to the opening hole 1a) twice with the pad (2) to ensure that the spout (B) is attached.

When the spout (B) is attached to the opening hole (a), the lever for pushing out the container (21
) returns to its original position, so the packaging container (A) with spout) (B) attached is pushed out of the holder Ql and is moved to the outer mantle of the second station (S2).
is firmly pushed inside.

In this manner, when attaching the spout (B) to the opening hole (a) of the packaging container (A), the spout (B) is attracted to the band 4 and is moved in an arc by the rotation of the lever 00 to open the spout (B). The spout (B) is fitted into the hole (al). Therefore, the spout (B) is inserted into the opening hole (a)
As soon as the protruding part of the spout (B) is fitted into the aperture +al, the edge of the aperture (al) acts as a kind of guide, and the spout (B) reliably approaches the aperture (a). pushed into.

In addition, in rotating the lever 0υ around the axis 0ω, in the embodiment, the cam follower Q61 of the lever α is engaged with the cam plate surface, and the lever aω and the lever αυ to which the pad is attached are connected to the rod 0 level. This is done by connecting the cam plate qη and moving the rod α1 up and down by the rotation of the cam plate
Compared to the conventional case where a suction cup to which a spout is attracted is activated by the operation of an air cylinder, the pad mackerel can be operated at high speed and accurately. Therefore, it is possible to sufficiently deal with the problem of high speed, which could not be dealt with with the conventional air cylinder, and it becomes possible to shorten the spout installation work time.

The packaging container (A) with the spout l-(B) attached is inserted into the outer mandrel (η) stopped at the second stage (S2) and moved further 90 degrees by intermittent rotation of the turret (7゛). He is then carried to the third station (S,).
Figures 1, 2 and 11 are located opposite the
As shown in the figure, a pedestal (24) with a prismatic cross section is arranged, and a part of the opening hole (a) side of the packaging container (A) held by the outer mandrel (7) is used for pushing the container. The lever (26) (Fig. 10) is inserted into the pedestal (24).

At this moment, the welding device body (2) of the spout welding device (F)
5) comes down and its horn (25c) is connected to the spout (B
) is held down by the pedestal (24). Therefore, the spout (
B) is heat-welded to the packaging container (A). In this case, the horn (25c) has a protrusion (
A recess into which the spout (b) can fit is formed, and the spout (
The brim (b) of B) is welded to the inner surface of the packaging container (A) by the horn (25c).

In the embodiment, the vertical movement of the welding device main body (25) of the spout welding device (F) is controlled by the cam plate (32) as shown in FIG.
) in the groove of the cam follower (33) on the welding device main body (25) side.
) and by changing the position of the cam follower (33) as the cam plate (32) rotates in one direction with the shaft α barrel.As long as the cam plate (32) rotates, welding will continue. The device body (25) has two connecting rods on the left and right (25d
), the welding device body (
25) comes down and its horn (25c) is placed on the pedestal (24).
) may be directly touched. In order to prevent this, in the embodiment, the upper part of the welding device main body (25) is connected to the cylinder as shown in (36) in Figs. If a problem occurs, move it to a predetermined position [for example, the first station (S
+)) and the spout welding device (F) is prevented from operating by pulling up the welding device main body (25) using the cylinder (36). Further, this cylinder (36) is also used when adjusting the pressing force of the spout welding device (F). That is, by changing the pressure of the cylinder (36), the pressurizing force of the spout welding device (F) can be adjusted.

After this welding work, the packaging container (^) is removed from the pedestal (24) by the lever (27) for returning the container, inserted again into the outer mandrel (7) of the third station (S,), and then placed in the turret (7). ') is carried to the fourth station (SO) by intermittent rotation. Here, the packaging container (A) after spout welding is inspected and defective products are removed. Discharge of defective products is as shown in (34) in Figures 9 and 10.
) This is done using the lever shown. That is, when a defective product is detected, if the air cylinder (35) is operated to move the lever (34) toward you (to the bottom of Fig. 1θ),
Defective products in the outer mandrel (7) are pushed out from the outer mandrel (7) and sent to the fourth station (S,).
It is discharged in

Then, by intermittent rotation of the turret (7゛), only the packaging containers (A) from which defective products have been removed are returned to the first station (S).
, ), but since a conveyor (30) is provided here, the running of the conveyor (30) causes the pushing member (31) attached to the chino to reach the first station (St). Push out the returned packaging container (^) from the outer mandrel (7), push it forward, and insert it into the mandrel (2) of the mandrel (1) of the bottom forming device (D) at the position (1) in Fig. 12. Shinkin (2)
The bottomless packaging container (A) with a spout inserted into the mandrel (1) is sequentially fed counterclockwise in FIG.
is molded.

On the other hand, the next packaging container (A) before spout installation is inserted into the outer mandrel (7) of the empty first station (St), and the same as the previous case is carried out by intermittent rotation of the turret (7゛). A series of spout installation and welding operations are performed.

This packaging container (A) is also sent from the first station (St) to the mandrel (1) by the conveyor (30) in the same way as in the previous case. By repeating this operation, a series of operations such as attaching the spout to the bottomless cylindrical packaging container, welding, and forming the bottom of the packaging container (A) after attaching the spout can be carried out continuously and efficiently. In addition, in the case shown in the example, the height (7゛)
Several outer mandrels (7) are attached to the machine, and a series of tasks are carried out separately at each station while rotating intermittently, making it extremely efficient and making the entire apparatus compact.

Although the length of the packaging container (A) differs depending on its capacity, the apparatus shown in the embodiment is designed to be able to handle any of them. That is, the container pushing lever (to) and the container pushing lever (21) at the second station (Sz), the container pushing lever (26) and the container returning lever (27) at the third station (S3). ) and air cylinders (23) and (2) connecting the two to move them together.
If you change the straw in 9) in the same way, the stop position of the container pushing lever ■ (26) will change in the same way, so whether the packaging container (A) is long or short, its tip ( the end of the container where the opening hole (a) is formed)
Therefore, the opening hole (a) of all packaging containers with different capacities can be
) can be fitted with the spout (B) in exactly the same way.

〔Effect of the invention〕

As described above, in the present invention, the spout (B) is attached to the packaging container (A) when the packaging container (A) is a bottomless tube before the bottom (a) of the packaging container (A) is formed by the spout attachment device (E),
Furthermore, the spout welding device (F) is used to attach this to the packaging container (
Since it is welded to A), even if dust etc. gets inside this packaging container (A), it can be easily removed by simply leaning the container against it, and defective products can also be removed relatively easily. It has the effect of being easy to do. Therefore, it is possible to avoid foreign matter from entering the container, which is extremely beneficial in terms of food packaging.

[Brief explanation of drawings]

The accompanying drawings show embodiments of the invention, and FIG.
Overall side view Figure 2 is a front view showing the relationship between the spout attachment device and the spout welding device, Figure 3 is a front view of only the spout attachment device, and Figure 4 is a front view showing the relationship between the spout attachment device and the spout welding device.
A plan view thereof, FIG. 5 is a plan view showing a state in which the spout is adsorbed to a pad that is a part of the same, and FIGS. 6 (al to (f)) are
Figure 7 is an enlarged front view showing the state in which the packaging container with the spout attached to the opening hole is held in the holder; Figure 8 is an enlarged side view showing an example of operating a lever with a pad, and Figure 9 is a turret and levers for pushing containers arranged at each station, levers for pushing out containers, and levers for returning containers. FIG. 10 is an enlarged front view showing the lever, etc. FIG. FIG. 13 is an enlarged side view showing the situation in which the bottom of the packaging container is molded; FIG. Fig. 14 is an enlarged view showing only a part of the packaging container to which the spout is attached, Fig. 15 is a cross-sectional view taken along line xv-xvvAg of Fig.
The figure is a perspective view of a packaging container with a spout after bottom molding. (A) - Packaging container without bottom, (A”) - Packaging container with bottom, (al- - Opening hole, (B) - Spout, (D) - Bottom forming device, (ε) - Spout mounting device, (F)...- Spout welding device.

Claims (1)

[Claims] 1. A spout attachment device (E) for fitting the synthetic resin spout (B) into the opening hole (a) of the packaging container (A), and a spout attachment device (E) for fitting the spout (B) into the opening hole (a) of the packaging container (A); A welding device (F) that welds the spout (B) attached to the hole (a) to the packaging container (A) is connected to a bottom forming device (of the packaging container (A)).
A processing device for packaging containers with a spout, characterized in that it is installed in front of D). 2. The spouted packaging container processing apparatus according to claim 1, wherein the welding device (F) is an ultrasonic sealer.