JPH06259B2 - Tab feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an easy open lid for a can container (hereinafter referred to as “EO”).
"E") for feeding a tab attached to a tab stocker to an EOE molding press machine.

(Prior Art) When manufacturing an EOE, a basic end (hereinafter referred to as “end”) is transferred on an EOE molding press machine, and a rivet, an uneven pattern, a score line, and tab crimping are sequentially applied to this end. Conventionally, the following three methods are known as means for supplying tabs in the tab crimping process of the end and the tab.

(a) The tab formed on the strip-shaped plate material is directly guided to the tab crimping process of the EOE molding press device, where the tab is punched from the strip-shaped plate material, and at the same time, the tab is fitted to the rivet formed on the end to be caulked. (See Japanese Utility Model Publication No. 59-8877).

(b) A tab formed into a strip-shaped plate material is punched with a punching die and then fed into a caulking process by a predetermined means (for example, a turret device) (see Japanese Patent Laid-Open No. 58-334).

(c) The tabs that have been formed by molding with a dedicated tab forming press machine and punched individually are stored in the tab storage pipes, and the tab storage pipes are taken to the EOE molding press device, where the tabs inside the tab storage pipes are placed. It is manually transferred to the tab supply gutter of the EOE molding press.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional (a) and (b),
Since tab molding or tab punching is performed in the EOE molding press device, if trouble occurs in each end processing step, it is necessary to stop tab molding and punching processing, and conversely tab molding and punching processing. When trouble occurs in the punching process, you have to stop each process of the end,
There was a problem that the work efficiency decreased.

Further, in the conventional (c), since the tab storage pipe is formed in a single pipe structure that stores only one row of tabs, the tab storage pipe is frequently set in the tab supply gutter, and the tab is replaced each time. Since complicated work such as transfer is required, and the tab stored in the tab storage tube is pushed out manually and transferred to the tab supply gutter, the tab often flips during the transfer. However, there is a problem that it hinders the tab supply to the EOE molding press device.

(Means for Solving Problems) The present invention has been made to solve the above-mentioned conventional problems. Therefore, in the tab supply device of the present invention, the lower end is an easy-open lid molding press device. And a plurality of tab guide grooves arranged at a fixed pitch and a plurality of tab guide grooves, which are detachably connected to the upper end of the tab supply trough and have a number of tabs aligned in the front and back and in the same direction. Tab storage groove for storing and holding in a stacked state is formed,
The tab housing groove has a number of threads greater than the number of tab guide grooves of the tab housing trough, and when the tab guide groove has a plurality of threads, the tab guide grooves are arranged by dividing the pitch of the tab guide grooves by a positive number. The tab stocker arranged at a pitch and the tab stocker with the tab storage groove aligned with the tab guide groove of the tab supply gutter, the extension direction of the tab storage groove at every positive multiple of the tab storage groove arrangement pitch. With the transverse feed device that moves in the direction orthogonal to and the tab stocker connected to the tab supply gutter, move the stacked tabs from both ends into the tab guide groove from the tab storage groove that matches the tab guide groove. And a tab take-out device for making it.

(Operation) In the tab feeding device of the present invention, when a large number of tabs are stored in a stacked state in which the front and back sides and the directions are aligned in a plurality of tab storage grooves formed in the tab stocker, the tab stocker is set to a predetermined position. It is conveyed by a conveying means and attached to the upper end of a tab supply gutter connected to an EOE molding press device.

In this attached state, a part of the tab storage groove of the tab stocker is aligned with the tab guide groove of the tab supply gutter. Next, when the amount of tabs stored in the tab guide groove of the tab supply gutter is reduced to a certain level, the tab removing device is activated,
The tabs in the stacked state are moved from the inside of the tab storage groove of the tab stocker aligned with the tab guide groove into the tab guide groove of the tab supply trough while holding both ends of the stacked state.

After taking out the tabs from the part of the tab storage groove of the tab stocker as described above, the transverse feeding device operates and moves the tab stocker by a predetermined pitch in the direction orthogonal to the extending direction of the tab storage groove. , The next tab accommodating groove is aligned with the tab guide groove, and thereafter, the same operation as described above is repeated, and the tabs are moved from all the tab accommodating grooves into the tab guide grooves in the stacked state.

(Examples) Examples of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1, the tab feeding device A of this embodiment is mainly provided with a tab feeding gutter 1, a tab stocker 2, a lateral feeding device 3, and a tab removing device 4.

The tab supply gutter 1 serves as a shade member for guiding the tab T stored and held in the tab stocker 2 to the EOE molding press device 5. In this embodiment, two tab caulking processes of the EOE molding press device 5 are provided. 2 tab guide grooves 11, 11 corresponding to those provided in the tab stocker 2 are formed on the upper end surface at the same pitch as the arrangement pitch P ₁ of the tab guide grooves 11, 11. Two positioning pins 12 and 12 are provided in a protruding manner, and each tab guide groove 11 is formed in a groove cross-sectional shape substantially matching the surface shape of the tab T, with the groove opening 13 opening on the upper surface. From the upper end, which is the base end, to the downward tilt direction (about 45
), And then extends vertically downward just above the caulking process in the EOE molding press device 5.

As shown in FIGS. 2 and 3, the tab stocker 2 has a base plate 21 which is a main body formed of a synthetic resin in a substantially rectangular shape, and is six times as large as the tab guide grooves 11 and 11 of the tab supply gutter 1. 12 tab accommodating grooves 22 are formed, and each tab accommodating groove 22 is arranged at an arrangement pitch P ₂ of 1/6 of the arrangement pitch P ₁ of the tab guide grooves 11, 11. I'm standing. Each tab storage groove 22 stores and holds a large number of tabs T in a stacked state in which the front and back sides and the directions are aligned. When the tab openings 23 open on the upper surface of the base plate 21, the tabs T have a substantially planar shape. The groove is formed to have a matching groove cross-sectional shape, and one end is opened as one end face of the base plate 21 as a connection port 24 that corresponds to the tab guide groove 11 of the tab supply gutter 1 and the other end is closed by an end member 25. The end member 25 is provided with a receiving member 27 elastically supported by a spring 26 in the longitudinal direction of the groove.

A check ball 28 as a locking means is provided on the inner surface of the groove on the side of the connection port 24 in the tab housing groove 22, and the check ball 28 can engage and disengage the tab T housed in the tab housing groove 22. To prevent the tab T from falling out of the tab housing groove 22.

The tab stocker 2 is removably attached to the upper end of the tab supply gutter 1 and has the same pitch as the parallel pitch P ₂ of the tab accommodating grooves 22 on the end face on the connection side of the base plate 21 as its positioning means. 12 positioning holes 29 are formed.

In addition, what is shown by 6 in FIG. 1 is a setting device, which is a mounting frame 61 of the tab stocker 2 and the mounting frame 6
A lift-up cylinder 62 that raises and lowers 1 between a horizontal position and a tilted position, and a hold cylinder 64 having a clamp 63 at its tip are respectively provided, and the tab stocker 2 is mounted on the mounting frame 61 in the horizontal position. Then, in this state, the end member 25 of the tab stocker 2 is gripped by the clamp 63 of the hold cylinder 64, and then the mounting frame 61 is raised to the inclined position by the lift-up cylinder 62 to lift the tab stocker 2 to the inclined state. To
While the tab stocker 2 is moved downward on the mounting frame 61 by the hold cylinder 64, the positioning hole 29
The tab stocker 2 is positioned and set on the tip of the tab supply gutter 1 by fitting the tab stocker 2 to the positioning pin 12. The lateral feed device 3 mounts the tab stocker 2 on the mounting frame 61 of the setting device 6 while accommodating the hold cylinder 64 and arranges the tab stocker 2 in the pitch P of the tab housing grooves 22.
_It is moved in a direction (horizontal direction) orthogonal to the extending direction of the tab housing groove 22 for each _two, and the feed screw rod 32 rotated by the drive motor 31 is horizontally mounted on the mounting frame 61. A support frame 33 provided on the feed screw rod 32
The hold cylinder 64 is supported by the structure.

The tab take-out device 4 serves as means for moving the tabs T from the tab storage groove 22 of the tab stocker 2 into the tab guide groove 11 of the tab guide trough 1 in the stacked state.

In this tab take-out device 4, a feed screw rod 42 which is rotated by a drive motor 41 is axially mounted along the inclination direction of the tab guide gutter 1 so as to extend from the tab stocker 2 to the tab guide gutter 1. Movable frame 43 provided on 42
The front cylinder 44 that moves forward and backward in the direction orthogonal to the tilt direction.
And a rear cylinder 45. The front cylinder 44 and the rear cylinder 45 are provided with holding pieces 46, 47 for intervening in the tab storage grooves 22 of the tab stocker 2 and the tab guide grooves 11 of the tab guide trough 1, respectively. It has an attached structure.

In addition, 7 is a tab retainer for holding the tab T at the upper end of the tab T taken out from the tab stocker 2 into the tab guide groove 11 by the tab take-out device 4 in accordance with the movement accompanying the decrease of the tab T. And a pair of left and right feed screw rods 72, 73 rotated by a drive motor 71 along the respective tab guide grooves 11, 11, and a movable frame provided on the feed screw rods 72, 73. 74,75
Are provided with pressing pieces 76, 77, and the pressing pieces 76, 7 are
7 is rotatably supported in a 90 ° range between a downward position in which the guide groove 11 is inserted and a lateral position in which the guide groove 11 is separated from the guide groove 11.

Next, the operation of this embodiment will be described.

A large number of tabs T punched out by a tab forming press device (not shown) are stored in the tab storage grooves 22 of the tab stocker 2 in a stacked state in which the front and back sides and the directions are aligned by a predetermined storage means. The state is held by a check ball 28 as a locking means.

Then, the tab stocker 2 containing the tab T as described above is connected to the upper end of the tab supply gutter 1 by the setting device 6. When connecting with the tab supply gutter 1, first, the tab guide gutter 1 Two positioning pins 1 protruding from the end face
The first and the second positioning holes 29 and 29, which are the first and the seventh of the twelve formed in the tab stocker 2 in the tabs 2 and 12, are fitted into the tab stocker 2. And the second two tab accommodating grooves 22, 22 are aligned with the two tab guide grooves 11, 11.

Next, when the tab T in the tab guide groove 11 is supplied to the EOE molding press device 5 and the tab T is reduced, the level of the tab T at the upper end in the tab guide groove 11 is lowered to a certain position. This is detected by the limit switch, the tab take-out device 4 is actuated, and the tab T is moved from the tab housing groove 22 of the tab stocker 2 into the tab guide groove 11 of the tab guide trough 1. At this time, the tab housing groove The tabs T stacked in 22 are taken out with the tabs T at the upper and lower ends held by the holding pieces 46 and 47.

After the tab T is taken out from the two tab storage grooves 22 and 22 of the tab stocker 2 into the tab guide grooves 11 and 11 as described above, the transverse feeding device 3 operates and the tab stocker 2 is moved by one pitch. By moving it laterally, the second and eighth positioning holes 29, 29 from the end are fitted into the positioning pins 12, 12 of the tab guide gutter 1 to tab the second and eighth tab storage grooves 22, 22. Match the guide grooves 11 and 11,
After that, while repeating the same operation as described above, the tab guide grooves 11 to
I will take out the tab T.

When the tab T is taken out from the tab housing groove 22 into the tab guide groove 11 by the tab take-out device 4, immediately after the rear holding piece 47 is removed, one holding piece 76 of the holding device 7 is released.
Presses and holds the tab at the upper end, and also holds the pressing state by moving the pressing piece 76 downward as the tab T decreases. At this time, the other pressing piece 77 moves to the upper end and Wait to hold the tab T taken out in
By alternately operating the left and right pressing pieces 76 and 77, the tab T in the tab guide groove 11 can be continuously pressed without a gap, and the tab T can be prevented from being reversed.

Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration of the present invention is not limited to the embodiments,
Even a design change within the scope of the invention is included in the present invention.

For example, the number of tab guide grooves of the tab guide trough may be one or more, and the number of tab storage grooves of the tab stocker may be greater than the number of tab guide grooves. Good.

In addition, the pitch of the tab storage grooves of the tab stocker can be set to any pitch as long as there is one tab guide groove, and if there are multiple tab guide grooves, the tab guide groove can be arranged. Set the pitch so that it is divided by a positive number.

Also, the lateral feed amount of the tab stocker by the lateral feed device may be a positive multiple of the pitch of the tab housing grooves.

Also, regarding the means to store tabs in the tab stocker,
It may be a mechanical device or manual work.

(Effects of the Invention) As described above, in the tab storage device of the present invention, the tab formed by the tab forming press device is once stored in the tab stocker, and the tab stocker is used for EOE by the device of the present invention. Since it is supplied to the molding press machine, the operation of the EOE molding press machine is stopped due to a trouble at the time of tab molding, or conversely, the tab molding press machine is stopped due to a trouble of the EOE molding press machine. EO of EOE molding press equipment without need
The tab forming can be performed independently of the E forming ability, and the effect that the continuous work of the EOE press forming process is possible while significantly improving the work efficiency of the tab forming is obtained.

In addition, the tab stocker has a larger number of tab housing grooves than the tab guide groove of the tab guide trough, and the tabs are taken out from each tab housing groove while the tab stocker is moved laterally by the lateral feed device. The frequency of transportation of the tab stocker to the tab feeding device is reduced, and the tabs can be continuously fed while the number of tab stockers held is reduced.

Further, the tab take-out device can automate the take-out of the tabs from the tab stocker, and the take-out can be performed while holding both ends of the tabs in the stacked state. The effect that the tab can be taken out smoothly is obtained.

Due to these effects, the tab supply to the EOE molding press device can be continuously performed in a stable state.

[Brief description of drawings]

FIG. 1 is an explanatory side view showing a tab feeding device of an embodiment of the present invention, FIG. 2 is a plan view of a tab stocker, and FIG. 3 is FIG.
-I sectional view, FIG. 4 is a sectional view of the tab supply gutter, and FIG. 5 is an explanatory view showing a holding device of the embodiment. A: Tab feeding device T: Tab 1: Tab feeding trough 11: Tab guide groove 2: Tab stocker 22: Tab storage groove 3: Side feeding device 4: Tab take-out device 5: Easy open lid molding press device.

Claims (1)

[Claims] 1. A tab supply gutter having a lower end connected to an easy-open lid forming press and having a plurality of tab guide grooves arranged at one line or at a constant pitch, and detachably attached to an upper end of the tab supply gutter. A tab accommodating groove that is connected and accommodates and holds a large number of tabs in a stacked state in which the front and back surfaces and the directions are aligned is formed, and the tab accommodating groove has a greater number of grooves than the number of tab guide grooves of the tab accommodating gutter. In addition, when there are a plurality of tab guide grooves, the tab stocker arranged at an arrangement pitch obtained by dividing the arrangement pitch of the tab guide grooves by a positive number matches the tab storage groove with the tab guide groove of the tab supply gutter. With the tab stocker connected to the tab supply gutter, and the transverse feed device that moves the tab stocker in this state in the direction orthogonal to the extending direction of the tab storage groove at every positive multiple of the pitch of the tab storage groove. , Tab supplying apparatus being characterized in that a tab feeding device for moving the tab guide grooves sandwiching the tab with stack from the guide grooves to match tabs accommodating groove from both ends.