JPS6114978Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a feeding/discharging device for an automatic shrink label loading machine, which aims to carry out stable bottle feeding while preventing misalignment of the shrink label and damage to the label.

The bottle ejection mechanism has been a major problem with conventional automatic syringe label loading machines. Particularly with intermittent linear type labelers, there is a large speed difference between the bottle movement speed inside the machine and the machine transport conveyor speed, making it extremely difficult to perform stable bottle discharge while preventing label misalignment. It was hot.

In conventional techniques, a star wheel or a simple pitch screw is provided as a discharge mechanism, and none of these methods solves the above-mentioned problems.

In other words, since the Shrink label is usually attached to the center of the bottle, if the aim is to stably discharge the bottle, it is supposed to hold the center of gravity of the bottle, which may cause the label to be misaligned, damaged, or If the bottle is discharged while avoiding the label part, the bottle becomes extremely unstable, causing the bottle to fall over or break.

The present invention is a feeding/discharging device for an automatic shrink label loading machine that has been devised to eliminate the above-mentioned drawbacks.

In other words, for bottles whose bottoms are held by a pair of left and right transport conveyors with grippers attached at regular intervals and the transport has stopped, labels are taken out from the feeder using a sucker and placed in the bottles. In an automatic syringe label loading machine, at the entrance there is a synchronous conveyor belt that is driven in synchronization with the conveyor of the machine and that supports the bottom of the bottle and loads it into the conveyor of the machine, and a synchronous conveyor belt that supports the side of the bottle. A screw is installed in the discharge section, which increases the speed to the conveyor speed of the machine and transfers the bottles to the conveyor of the machine at regular pitch intervals. A discharge conveyor belt that is driven in synchronization with the machine transport conveyor and supports the bottom of the bottle and discharges the bottle from the machine transport conveyor, and a pitch belt that supports the bottle and gradually reduces the bottle transport speed from the machine transport conveyor. It is equipped with left and right screws that reduce the size.

The embodiments shown in the drawings will be described below.

The one shown is a 4-head, intermittent straight type, automatic syringe loading machine, i.e., a syringe labeler.It uses a timing screw to spread the bottles that have flown in a compressed state at equal intervals inside the syringe labeler. The label is inserted into the bottle while the bottle is stationary, and then the bottle is ejected in a subsequent operation, in which four bottles with attached labels are ejected in one cycle.

Therefore, to explain the main body of the Shrink labeler, first, feeder A shown in Figures 1, 2, and 3 has side holding guides 2, 2' for label a at the protruding ends of a pair of left and right endless chains 1, 1', and label a
A label a is placed in a stacked state between these presser guides and a presser plate 4 having an L-shaped cross section and placed on the endless chains 1 and 1'. There is.

An air jet nozzle 5 and spiral pressers 6, 6' are arranged above the side presser guides 2, 2', and presser screws 6, 6' are fixed to a fixed frame 7.

Therefore, when the labels a are taken out one by one by a sucker to be described later, the air jet from the nozzle 5 and the spiral pressers 6, 6 ensure that the labels are separated and taken out one by one. Label a is made by cutting tubes into rings, flattening them, and stacking them together, and is made of a material that can be shrink-wrapped. Conventionally, it would be difficult to separate the labels one by one because the material is susceptible to static electricity, etc. Although it was difficult due to the influence, the above structure makes it easy to take out one sheet at a time, and there is no possibility that two or more sheets will be taken out in piles.

However, the feeders shown in Figures 4 and 5 are from before the improvement and do not have the structure described above.

A picker for taking out the labels a one by one is arranged facing the feeder as described above, and a rotary 8 is arranged one by one facing one feeder as shown in FIG. Satsuka is 180
They are provided on this rotary 8 with a phase shift of .degree.

9 and 9' shown in FIG. 4 indicate the soccer car.

In parallel with this supporter 9, 9', the receiving plate 10, 1
0' is provided on the rotary 8, and is configured to rotate by 180 degrees by a drive mechanism to be described later.

A pair of conveyors 12, 12 on the left and right are provided below the rotary 8, with visible grippers 11 for setting the bottles at positions corresponding to the rotary 8 and conveying four bottles at an equal pitch in one cycle.

Also, the printing type for printing on label a and label a
A header 13 is provided facing the rotary 8 and is equipped with a supporter for expanding the header.
4 and 15 indicate printed letters and a sukkah.

The header 13 has a cylinder 16, which has a type 14 and a cylinder 15 for the header 13.
A slider equipped with a reciprocating motion back and forth.

Further, in order to swing the type 14 toward the ink roller 17, the slider of the type is rotated about a shaft 18 via a drive mechanism to be described later. A vertically movable mandrel 20 is inserted from above into the label that is spread by the sutcher 9 or 9' and the sutcher 15, and a guide pipe 19 that is movable up and down on the outer periphery of the mandrel is disposed above the stationary bottle. ing.

An insertion bar 2 that can be raised and lowered and is equipped with a filler 21 for inserting the expanded label a into the bottle.
There are 2. (See Figures 5 and 8) 23 shown in Figure 5 is a cylinder for raising and lowering the mandrain 20, and 24 is a cylinder for raising and lowering the guide pipe 19.
A buffer spring 2 is connected between the upper end of the cylinder 9 and the arm 25 connected to the piston rod of the cylinder 24.
There are 6.

As shown in FIG. 7, the insertion bar 22 is provided on a support shaft 33 of an arm 31 connected by a pin 29 and a slit groove 30 to a bar 28 connected to a piston rod of a cylinder 27. Since the insert bar 22 swings about the support shaft 33 as a reference point, the insertion bar 22 also swings together with the support shaft 33.
Further, since the insertion bar 22 is provided symmetrically, the label a, which has been spread horizontally by the above-mentioned feeders 9 or 9' and 15, can be inserted into the feeder 21,
21 and is lowered so that it can be inserted into a bottle.

Therefore, the entire link mechanism described above is adapted to be lowered by a cylinder 34, as shown in FIG.

The header 13 described above is driven by a pinion 37 that meshes with a rack 36 operated by an air cylinder 35 shown in FIGS. 4 and 5, and is rotated by a pinion shaft 18.

The rotary 8 is rotated by gear groups 38, 39, 40, 40', 40'', etc., as shown in FIGS. 4 and 5.

In addition, the ink roller 17 is supplied with ink from an ink pot 41 as shown in FIG.
It is supported by an arm 43 of a shaft 42 hanging from the machine frame.

Now, the label a taken out from the feeder A by the feeder 9 is conveyed to the position 9' shown in FIG. 4 by the rotation of the rotary 8 through 180 degrees.

At this time, the bottoms of the four bottles b have already been gripped by the gripper 11, and the four bottles b have already been gripped by the gripper 11, and the four bottles b are
2, 12' and stopped at a predetermined position.

Then, the slider of the header 13 is moved forward by the cylinder 16, and as this slider moves forward, the slider of the type 14 is also moved forward by an engaging device (not shown).

Before moving forward, the type 14 is rotated together with the slider by the rotation of the shaft 18, and the ink roller 17 is rotated.
Ink is being replenished from.

A date stamp is printed on the label a by the advanced type, and the label a is supported by the receiving plate 10 during printing.

At the same time as printing is completed, the printer 15 operates to label a
, so that the cylinder 16 moves the follower 15 backward, and the label a is spread out to the left and right along with the follower 9.

The mandrel 20 and the guide pipe 19 are lowered into the label a spread out in a ring shape as shown in FIG. 9A, and the spinning part of the mandrel 20 is first inserted into the label a as shown in FIG. 9B. Next, as shown in FIG. 9C, the guide pipe 19 is inserted into the label a using the mandrel 20 as a guide, and finally, as shown in FIG. Spread into a ring. As mentioned above, the reason why the mandrain is placed in front is to prevent it from getting caught on the label and crushing it.

At this point, due to the action of the cylinder 27, the bar 2
8. Insertion bar 22 via arm 31 and support shaft 27
The supporter 21 supports the label a downwardly, and the mandrel 20 and guide pipe 19 rise as shown in FIG. 9E, leaving behind the supported label a. Due to the action of the bar 28, the arm 31, the support shaft 3
3. The insertion bar 22 is lowered via the insertion bar 22,
Insert label a into bottle b as shown in Figure 9.

After inserting the label a into the bottle b, the insertion bar 22 returns to its original position and moves to a standby position.

By repeating the above operations, the label a taken out from the feeder A is transferred to the conveyor 12, 1 of the machine.
The inserted bottle is then transferred to the machine conveyor 12,
12', it is discharged toward the discharge section.

The present invention relates to an improvement of the feeding and discharging device in a shrink labeler, that is, an automatic shrink label loading machine that operates as described above.

First, let us explain about the entrance section.
As shown in the figure, a pair of upper and lower screws 44, 45 whose pitch gradually increases toward the labeler is provided,
A guide plate 46 is provided opposite to this. Below this, there is a synchronized conveyor 50 which is driven in synchronization with the conveyors 12, 12' of the present machine, supports the bottom of the bottle b and loads it into the conveyors 12, 12' of the present machine. A pair of upper and lower screws 44, 45
are arranged so as to correspond to the body and shoulder of bottle b.

Screws 44, 45 arranged as above
As a result, the moving speed of bottle b will be increased to the speed of the main conveyor 12, 12',
Bottles b flowing in a pressed state can be fed into the inside of the labeler machine while being spread at equal pitches by the timing screws 44 and 45.

It is necessary to modify the end faces of the screws 44 and 45 inlet portions so that the bottle b can be easily inserted therein.

Also, it is better from the point of view of stable bottle feeding if the deceleration rate of the bottle inside the screw is not excessively large.

Furthermore, the synchronized conveyor 50 is synchronized with the machine transport conveyors 12, 12', but the screws 44,
It must be able to feed bottles stably within 45mm.

Since the screws 44 and 45 feed the bottle while holding the bottle b, if there is a large speed difference between the screws 44 and 45 and the synchronous conveyor speed, the bottle will become unstable, and in extreme cases, the bottle will be fed tilted, and the screw 4
4. Problems such as overturned bottles remain in the condition of the bottles immediately after the 45th exit.

Note that resin such as PE may be attached to the bottle portion of the guide plate 46.

In addition, a connecting plate made of SUS or PE type resin with good slippage may be provided at the connection part with the conveyor 12, 12' of this machine.

Furthermore, a discharge belt for guiding the upper part of the bottle may be provided after the screw. In addition, a pair of left and right screws that hold the upper part of the bottle avoiding the label attachment part may be used instead of providing upper and lower screws.

Next, a screw 47 whose pitch is gradually reduced from the labeler is provided at the discharge portion of the labeler, and another screw 48 is installed correspondingly thereto. Furthermore, a discharge conveyor belt 49 is provided to support and convey the bottom of the bottle b. In this discharge section, bottle b is conveyed from high speed to low speed by screws 47 and 48, so that bottle b is conveyed from high speed to low speed by screws 47 and 48.
This matches the conveyance speed of bottle b discharged from 2 and 12', allowing stable bottle feeding. Also, since the lower part of bottle b is held by screws 47 and 48, label a will not be damaged.

In any case, since bottles can be fed by disposing a rough screw whose pitch gradually increases or decreases in the feeding/discharging section of the labeler, stable feeding is possible and no misalignment of the label occurs.

In the first place, with this type of device, the first priority is to be able to feed the bottle stably while preventing the label from shifting.
This is the point.

In other words, when there is a large difference between the moving speed inside the machine and the speed of the machine's transport conveyor, the conventional star wheel system had the disadvantage of not being able to absorb the speed difference, but the coarse screw system of this proposal Since the screw pitch can be gradually increased or decreased depending on the screw pitch, stable bottle feeding is possible even when there is a large speed difference.

Therefore, for example, when bottles are filled with contents in a filling machine and are forced to flow onto a line conveyor, they are quickly brought onto the conveyor of this machine, and after label supply is finished, they are Once again, the material can be pushed from the top of the transport conveyor of this machine and discharged at a gradual deceleration, allowing it to reach the shrinking process.

However, in the case of the discharging device, the lower part of the bottle is held with a screw to avoid the label, so the label is not damaged, and the conveyor speed is gradually reduced. There is no speed difference at the exit, and the bottle can be fed stably without being affected by the subsequent shrinking process. Also, in terms of cost, an economical feeding/discharging device can be obtained with a simple screw structure and taking up relatively little space.

[Brief explanation of the drawing]

Figures 1, 2, and 3 are front and side views of the feeder,
A plan view is shown. Figures 4 and 5 are a plan view and a front view of the main parts of the automatic label loading machine, with cutaways showing different positions. FIG. 6 is a schematic plan view of the proposed device. FIG. 7 is a partially omitted diagram of the operating mechanism of the insertion bar in the Shrink label automatic loading machine. FIG. 8 is a schematic front view of the proposed device. FIGS. 9A to 9F are explanatory diagrams of the operation of the guide pipe and mandrel of the automatic label loading machine. 44, 45, 47, 48... Screw, 46
...Guide plate, 49...Discharge conveyor belt,
50...Synchronized conveyor.

Claims (1)

[Scope of utility model registration request] Grippers are attached at regular intervals, and when several bolts have stopped being transferred due to their bottoms being held by the pair of left and right transport conveyors, the label is taken out from the feeder using a sutcher, and an intermittent straight type is used to load it into bottles. In an automatic syringe label loading machine, there is a synchronized conveyor at the entrance that is driven in synchronization with the conveyor of the machine and supports the bottom of the bottle and loads it into the conveyor of the machine, and a synchronized conveyor that supports the side of the bottle and loads it into the conveyor of the machine. A screw is provided in which the pitch increases to the speed of the conveyor of the machine and transfers the bottles to the conveyor of the machine at regular pitch intervals, and the pitches thereof gradually expand toward the conveyor of the machine. The discharge conveyor belt, which is driven in synchronization with the conveyor of this machine and supports the bottom of the bolt to discharge bottles from the conveyor of this machine, and the pitch that supports the bottles and gradually reduces the transport speed of the bottles are the conveyor of this machine. A feeding/discharging device for an automatic shrink label loading machine, which is equipped with left and right screws that gradually reduce in size.