JPH0414392Y2 - - Google Patents

Description

[Detailed description of the invention] -Field of industrial application- The present invention relates to a liquid filling machine for filling liquid into round cans having an eccentric mouth, and in particular, the invention relates to a liquid filling machine for filling liquid into round cans having an eccentric mouth. This invention relates to a matching device for aligning the parts.

-Prior art- In recent years, medium-sized round cans called "Peruvian cans" with an eccentric opening on the top are being used because they are resistant to liquid leakage during transportation. To fill the round cans with liquid on the line, after aligning the eccentric mouth in a constant direction,
It is necessary to perform liquid filling. For this reason, in the past, drive belts were placed on both sides of the can's path to hold the incoming round can and forcibly rotate it, and a sensor located above the can was used to detect the mouth of the round can. The drive belt is stopped based on the detection signal from the sensor. However, in such a conventional matching device, the driving device for the drive belt is complicated and expensive, so although it is suitable for large drums, it is not suitable as a matching device for medium-sized cans such as Peruvian cans. be.

-Purpose of the invention- The purpose of the present invention is to obtain an inexpensive fitting device with a relatively simple structure in view of the current state of the fitting devices of conventional liquid filling machines as described above.

-Structure of the invention- In order to achieve this purpose, the present invention aligns the openings of a round can with an eccentric opening in a certain direction, and then fills the inside of the round can with liquid from the opening. In the liquid filling machine, the round can is rotatably supported by a plurality of support rollers, at least a portion of which is retractable, and the mouth portion is positioned directly above the center of the round can supported by the support rollers with a side surface of the tip. A pushable mouthpiece stem is arranged with its rotation center at the center of the round can, and by rotating the mouthpiece stem back and forth at the same level as the mouth, the round can is oriented in a fixed direction. The proposal is to rotate the round cans until they are aligned.

-Embodiments- Hereinafter, details of embodiments of the present invention will be described with reference to the drawings.

FIG. 2 is a plan view of the liquid filling machine according to the present invention, in which support rollers A having eccentric mouths a are aligned in a line while moving along a path 1 formed in a "U" shape. Then, their mouths a are oriented in the same direction, and after being filled with a certain amount of liquid, they are taken out. That is, the liquid filling machine
The entrance portion 1b of the passageway 1 includes a fitting station X and a filling station Y arranged along a.
The round cans A taken in in an aligned manner are fed one by one to the matching station X by a pusher 3 of a pneumatic cylinder device 2 disposed at a corner of the passageway 1.
Further, the round can A filled with liquid discharged to the outlet portion 1c of the passage 1 is taken out from the liquid filling machine by a roller conveyor (not shown). The alignment station X, whose details are shown in FIG.
A support stand 7 to which a pair of support rollers are attached is fixed to the piston rod of these centering cylinder devices 4 and 5 so as to be movable in the width direction of the passage 1. The support rollers can freely rotate around the vertical axis 8 of the support stand 7, and when the support stand 7 is advanced into the passage 1 by the operation of the centering cylinder devices 4 and 5, these support rollers 6A,
6B holds the round can A as shown in the fifth figure. A mounting bracket 10 fixed to the body 9 is protruded above the centering cylinder devices 6A and 6B, and a round can held between the centering cylinder devices 6A and 6B is attached to the tip of the mounting bracket 10. A vertical operating rod 11 located over the center of A is provided. The lower end of the operating rod 11, whose upper end is connected to the vertically movable cylinder device 12, is pivotally supported by a pin 14 at the intermediate portion of a mouth-aligning stem 13 extending in a substantially horizontal direction, and the base end of the mouth-aligning stem 13 is fixed as a fulcrum to a support bracket 16 fixed to the lower end of a rotating sleeve 15, which will be described later. Further, the tip end 13a of the mouth fitting stem 13 is connected to the vertical movement cylinder device 12.
When it is brought down to the state shown by the imaginary line in FIG. 1, it is located at the same level as the mouth a of the round can A.

The mounting bracket 10 is attached to the operating rod 11.
A small-diameter driven gear 17 is fixed to the intermediate portion of the rotating sleeve 15. This driven gear 17 is attached to the mounting bracket 1
Large diameter drive gear 19 of drive motor 18 mounted on
In the illustrated example, the drive motor 18
As a result of the forward and reverse movement, the mating stem 13 performs a reciprocating rotation movement of approximately 340 degrees around the operating rod 11 as shown in FIG.

The filling station Y is equipped with a vertical filling nozzle 21 supported by an arm 20 extending from the machine body 9 onto the passage 1, and this filling nozzle 21 drops and fills a certain amount of liquid into the round can A. . In addition, the mouth fitting station X and the filling station Y
In order to transfer the round cans A between the filling stations and to discharge the round cans A from the filling station Y, a horizontally reciprocating stepping rod 22 is arranged in the center of the passageway 1. This stepping rod 22 is connected to a feed cylinder device 23.
It is reciprocated by a round can A on its top surface.
Three feed pawls 24 protrude into the passageway 1 and can contact the inner circumferential surface b of the bottom of the passageway 1. These feed claws 24
As shown in FIG. 4, since the stepping rod 22 is held in an upright position by a spring 25, when the stepping rod 22 moves forward, it hooks on the inner peripheral surface b of the bottom of the round can A and advances the round can A. Further, when the stepping rod 22 moves backward, it is retracted to prevent the round can A from returning.

Since the illustrated embodiment has the above structure,
The round cans A supplied to the liquid filling machine are set one by one on the matching station X by the pusher 3 of the pneumatic cylinder device 2. When one round can A is placed on the matching station X, the centering cylinder devices 4 and 5 are operated, and the support rollers 6A,
6B is moved from the position shown by the solid line in FIG. Therefore, in this state, the round can A is in a state where it can freely rotate around its own center due to the rolling contact between the support rollers 6A and 6B.

Thereafter, the operating rod 11 is lowered by the vertical movement cylinder position 12, and the opening stem 13 is brought down to the state shown by the imaginary line.Then, the drive motor 18 is started. Since the tip 13a of the matching stem 13 is at the same level as the mouth b of the round can A, the rotation of the matching stem 13 pushes the tip 13a of the matching stem 13 forward, and the round can A is pushed forward by the support roller. It rotates based on the support of 6A and 6B. In this case, the forward movement of the mouth fitting stem 13 stops at the position shown by the imaginary line in FIG. 5, and the backward movement ends at the position shown by the solid line.
The positions of are all aligned to the positions indicated by solid lines. When this mating step is completed, the mating stem 13 is raised again so as not to become an obstacle to the movement of the round can A, and the centering cylinder devices 4 and 5 move the stem 13 to the support roller 6.
A and 6B will be moved back.

Next, the round can A that has completed the matching has a progressive rod 1
It is moved to the filling station Y by the forward movement of the feed claw 2 as shown in the fifth figure.
4 contacts the inner peripheral surface b of the bottom of the round can A at the forefront in the traveling direction, so the orientation of the mouth part a does not change while the round can A is moving. Therefore, the mouth a of the round can A transferred to the filling station Y is the filling nozzle 21.
Since the filling nozzle 21 is located directly below the filling nozzle 21, liquid filling can be performed simply by lowering the filling nozzle 21. In addition,
When the next round can A is sent from the matching station No need to point it out.

-Effects of the invention- As is clear from the above explanation, according to the present invention, round cans with mouths in uneven directions can be rotatably supported, and the mouths can be joined by simply rotating the mouth-matching stem once. Because it can be done, the manufacturing cost is low,
A device suitable for medium-sized round cans with a simple mechanism can be obtained.

[Brief explanation of drawings]

Fig. 1 is an enlarged sectional view taken along line - in Fig. 2 of the liquid filling machine according to the present invention, Fig. 2 is an overall plan view of the same liquid filling machine, and Fig. 3 is taken along line - in Fig. 2. A cross-sectional view, FIG. 4 is a partially cutaway enlarged view of a stepping rod used in the same liquid filling machine, and FIG. 5 is an explanatory view of a round can and related parts in a mating station. A... Round can, a... Mouth part, X... Mouth fitting station, 6A, 6B... Support roller, 13...
Mouth stem.

Claims (1)

[Scope of utility model registration request] A liquid filling machine that fills liquid into the inside of a round can from the opening of a round can after aligning the opening of the round can with an eccentric opening in a certain direction, a plurality of support rollers at least partially retractable. The round can is rotatably supported by the support roller, and a mouth-matching stem capable of pushing the mouth part with the side surface of the tip is rotated to the center of the round can, directly above the center of the round can supported by the support roller. A liquid filling method characterized in that the round can is rotated to a position where the orientation of the round can is aligned in a certain direction by arranging the round can with its center and reciprocating the mouth matching stem at the same level as the mouth. Machine alignment device.