JPS60172691A - Cap feeder for capper - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cap supplying device for a capper that delivers a cap from a picker that is transported around a certain rotation center to a cap holding mechanism that is transported around another rotation center.

Conventionally, a picker is provided on a star wheel that feeds containers into a rotary body of a rotary capper, and this picker transports the camp on a circular trajectory, and a star wheel provided on the rotary body that transports the camp on a circular trajectory centering on a rotation center different from that of the picker. locus, L
A capper is known in which the cap is delivered to a cap holding mechanism conveyed by the star wheel, and the cap held by the cap holding mechanism is then capped into a container supplied from the star wheel.

However, in a conventional capper having this type of configuration, the transfer portion of the cap holder that transfers the cap from the picker to the cap holding mechanism is the contact point between the circular movement locus of the picker and the circular movement locus of the cap holding mechanism. Therefore, the time given for the transfer is short, and this makes it difficult to increase the speed of the capper.

In view of such circumstances, the present invention is provided with a camp receiver that transfers the cap from the binker to the cap holding mechanism, in which a follow-up mechanism is installed in the transfer section to cause the picker and the cap holding mechanism to follow each other over a predetermined range. To provide a cap supplying device for a capper, which lengthens the time given for camp delivery, thereby ensuring reliable cap delivery even when the speed of the capper is increased.

The present invention will be described below with reference to an illustrated embodiment. In FIG. 11, a container 2 transported by a transport conveyor 1
(see Fig. 3) is synchronized with the capper 4 by the timing screw 3, and then introduced into the rotating body 6 of the capper 4 by the supply star wheel 5, and is fixed to the rotating body 6 by a container holding mechanism (not shown). . On the other hand, the cap 7 (see FIG. 3) to be put on the container 2 is delivered from a chute (not shown) to a picker 8 provided on the star wheel 5, and is transported by the picker 8.

The rotating body 6 has a cap holding mechanism 9 (
(See Figures 2 and 3), and this cap holding mechanism 9 is provided on the rotating body 6 so as to be able to rise and fall freely, and is configured to revolve around the rotation center of the rotating body 6 and rotate on its own axis. There is. This cap holding mechanism 9 is
The cap holder holds the cap 7 conveyed by the picker 8 in the transfer section A, and the cap 7 held by the cap holding mechanism 9 is screwed into the opening of the container 2 by rotation and descent.

When the cap holding mechanism 9 screws the cap 7 onto the mouth of the container 2, the holding of the cap 7 by the cap holding mechanism 9 is released, and the cap holding mechanism 9 closes.
When the container 2 is released from being held by the container holding mechanism, the container 2 with the cap 7 is discharged onto the conveyor 11 by the star wheel IO on the discharge side.

The above-mentioned structure and operation are basically the same as those of conventionally known cappers of this type.

However, in this embodiment, as shown in FIG. 2, the cap holding mechanism 9 simply moves on a constant circular movement trajectory C on a plane, but the picker 8
The cap holder, which transfers the cap 7 from the picker 8 to the cap holding mechanism 9, is arranged in the transfer section A to follow the cap holding mechanism 9, which moves at a constant speed on the above-mentioned circular movement trajectory CL, and move directly below the cap holding mechanism 9. ing. Therefore, the movement locus B of the picker 8 on the plane is such that the cap holder that transfers the cap 7 from the picker 8 to the cap holding mechanism 9 is circular on the plane of the cap holding mechanism 9 over a predetermined range of the transfer section A. It comes to substantially match the movement trajectory C.

- In order to operate the picker 8 following the operation of the cap holding mechanism 9, the picker 8 is provided movably in the circumferential direction and radial direction with respect to the star wheel 5 in this embodiment. That is, as shown in FIGS. 2 and 3, six holders 16 are mounted radially outward on a rotating body 15 (FIG. 3) that rotates integrally with the upper part of the star wheel 5. and the inner end of each holder 16 is pivoted to the rotating body 15 with a pin 17 so that it can swing, so that the picker 8 is attached to the star wheel 5. It is possible to move in the circumferential direction. -1-Reporter Bitsuka 8 is each holder 18
The re-picker 8 is engaged in a guide groove 18 formed in the length direction at the tip thereof, and is movable forward and backward along the guide groove 18, thereby making the repipper 8 movable in the radial direction with respect to the star wheel 5.

] The picker 8 slidably provided in the guide structure 18 is forced outward in the radial direction by a spring 18 loaded between it and the holder 16, and the cam follower 20 provided on the picker 8 is brought into elastic contact with the cam 21. This cam 21 is
- The rotor 15 and the star wheel 5 are fixed by a fixing member (not shown), and the cap holder moves the picker 8 at the transfer portion A substantially along a constant circular movement trajectory C of the cap holding mechanism 9. It has a cam shape that allows it to be moved.

Further, in a part of each of the holders 16, the top of one of the roughly pentagonal arms 25 is pivoted to the rotor 15 with a pin 26, and the top of the other arm 25 is attached to the holder 18. The holder 16 is interlocked with the holder 18 via a pin 27 provided on the top surface of the rotary body 15, and a tension spring 28 is stretched between the pin 27 and the rotating body 15, so that the holder 16 is The cam follower 29 provided on the remaining top of the arm 25 is brought into elastic contact with the cam 30 by swinging clockwise in FIG.

This cam 30 is fixed at the upper part of the rotating body 15 by a fixing member (not shown), and cooperates with the cam 21 to move the picker 8 along a constant circular movement locus Cf of the cap holding mechanism 9. At the same time, the cam shape is such that it accurately follows the cap holding mechanism 9 that moves at a constant speed on the circular movement trajectory C and moves the position directly below it.

In the above configuration, the picker 8, in which the cap receiver moves on a constant circular movement trajectory B other than the transfer portion A, receives the capper 6 from a chute (not shown), and the picker 8 receives the capper 6 from a chute (not shown).
is conveyed along a circular movement trajectory B-1-. When the capper 6 reaches the transfer section A, the two cams 21 and 30 cause the picker 8 to follow the cap holding mechanism 9, which moves at a constant speed on the circular movement path C, to a position directly below it. will be moved.

When the picker 8 follows the cap holding mechanism 9 and moves to a position directly below it, the cap holding mechanism 9 is lowered to hold the cap 7, and then the cap holding mechanism 9 is raised again to hold the cap 7. Release the engagement with the picker 8. The transfer operation of the cap 7 at this time can be carried out within the range of the transfer section A by using a cap holder having a predetermined length, so compared to the conventional device in which the cap is transferred at substantially one point. This allows for reliable delivery.

Note that, as is conventionally known, instead of raising the cap holding mechanism 9, it is also possible to lower the picker 8 and release the engagement between the cap 7 and the picker 8. After this, the cap holding mechanism 9 holding the cap 7 is lowered, and the held cap 7 is screwed onto the mouth of the container 2 by its rotation, as described above.

FIGS. 4 and 5 show other embodiments of the invention, in which the embodiment described above has a cap retaining mechanism 9 for the picker 8.
The following mechanism consisting of the cams 21, 25, etc. of Ichibun 4 is provided only on the star wheel 5 side, whereas the following mechanism is provided only on the star wheel 5 side.
and the second rotating body 6 on the side of the cap 4.

In this embodiment, the pair of cams 21 and 25 that are different from the above embodiment are omitted, and the picker 8, which is slidably engaged in the guide groove 18 of the holder 16, is moved in the radial direction by the if lever 194. The holder 18, which is biased outward and usually held at its tip, and which swings as the bottle 17 is rI]IcJ, is normally held by a stopper pin provided on the rotating body 15 by the tension spring 28. 35).

- At the bottom of the holder 16, a roller 3θ that rotates around the center of the picker 8 described in 1- is attached, and a plurality of semicircular shapes whose outer circumferences are respectively engaged with the rotary body 6 of the capper 4 are attached. The disk 38 forming the pocket portion 37 is fixed, and the center of the pocket portion 37 marked in -I is aligned with the center of the cap holding mechanism 9, and the inner diameter of the pocket portion 37 is adjusted to prevent the lifting and lowering of the retaining mechanism 9. The outer diameter is set to be larger than the outer diameter of the cap holding mechanism 9 so as not to interfere with the operation.

In this embodiment having such a configuration, t±,.

The picker 8 is located at the tip of the holder 16, and the holder lθ
is in contact with the stopper pin 35 and in a state of N/)
When the picker 8 receives the kettle 7 from a chute (not shown) and approaches the transfer section A where the cap is received, the picker 8 moves into the pocket of the disc 38, which is installed in the L holder 1B. so as to engage within the portion 37.

When the roller 36 is completely engaged in the pocket portion 37, the middle +6 of the blurred portion 37 is placed at the center of the cap holding mechanism 9, and the middle and middle portions of the roller 3θ are placed at the center of the picker 8. Since the picker 8
automatically follows the position directly below the cap holding mechanism 9, and during this time, the picker 8 and the halter 16 move against the springs 19 and 28, respectively, as the rotational force of the rotating body 15 advances, and the radius of the star wheel 5 is moved. Since the roller 3B is moved in the direction and the circumferential direction, it is necessary to maintain the state in which the roller 3B is completely engaged in the pocket portion 37, that is, the picker 8 must follow the straight position of the cap holding mechanism 9. T-Kanaru so that you can do it.

In the embodiment described in -, the binker 8 is made to follow the cap holding mechanism 9 accurately, but the cap 7 is made movable within a predetermined range with respect to the picker 8, and the cap holding mechanism 9 is expanded downward. In the case where an open conical guide portion is provided, the holder 16 can be fixed to the rotating body 15.

Further, in the above embodiment, the cap holding mechanism 9 is moved along a constant circular movement locus C, and the picker 8 is moved by the cap holding mechanism 9.
However, on the contrary, the picker 8 may be moved along a constant circular movement locus C and the cap holding mechanism 9 may be operated following the picker 8. Both may be operated to follow a movement trajectory appropriately determined in the middle of both circular movement trajectories.
In either case, even if the drive system of the cap holding mechanism 9 becomes complicated, it is clear that the follow-up mechanism shown in the above-mentioned embodiments can be basically applied as is. Furthermore, if both the picker 8 and the cap holding mechanism 9 are movable relative to each rotating body 15.6, one is movable in the radial direction and the other in the circumferential direction. You can.

Further, although the above embodiments apply the present invention to a screw capper, the present invention is not limited thereto, and it is of course possible to apply the present invention to crowners and the like.

As described above, the present invention provides a picker that is provided on a first rotating body to convey a cap, and a picker that is provided on a second rotating body that rotates around a rotation center different from the first rotating body. In the capper, the capper is equipped with a cap holding mechanism for holding a cap from the picker, and is configured to plug a container with the cap held by the cap holding mechanism, a gear for transferring the cap from the picker to the cap holding mechanism;
The picker is a transfer section and is equipped with a follow-up mechanism that causes the picker and the cap holding mechanism to follow each other over a predetermined range, so it takes less time to transfer the cap from the picker to the gear pump holding mechanism. It is possible to increase the length of the capper, so that it is possible to transfer the cap reliably, and the speed of the capper can be increased.

[Brief explanation of drawings]

FIG. 1 is a schematic plan view showing an embodiment of the present invention, FIG. 2 is an enlarged plan view of the main part of FIG. 1, and FIG. 3 is a sectional view of FIG. 2.
FIG. 4 is a plan view similar to FIG. 2 of another embodiment of the present invention, and FIG. 5 is a sectional view. 2... Container 4... Capper 6.15... Rotating body 7... Cap 8... Picker 9... Cap holding mechanism 16... Holder 19
．． 28...Spring 20.29...Cam follower

Claims (1)

[Claims] a binka that is provided on the first rotating body and that conveys the cap;
A camp holding mechanism is provided on a second rotating body that rotates around a rotation center different from that of the first rotating body and holds a cap from an L binka, and the cap held by the cap holding mechanism is driven into a container. In the capper configured to close the cap, the cap holder that transfers the cap from the picker to the cap holding mechanism is a transfer portion, and a follow-up mechanism is provided to cause the picker and the cap holding mechanism to follow each other over a predetermined range. Features a cap feeding device for the capper.