JPH06257B2 - Tab stocker-transport method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an easy-open lid (hereinafter “EOE”) of a can container.
The present invention relates to a transportation method for transporting a tab stocker that accommodates a tab attached to the EOE molding press apparatus from the tab molding press apparatus.

(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 using a dedicated tab forming press machine and punched individually are manually stored in the tab storage tube, and this tab storage tube is taken to the EOE molding press machine, where it is placed inside the tab storage tube. The tabs of No. 2 are transferred to the tab supply gutter of the EOE molding press device.

(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 is manually stored in the tab storage pipe, transported and transferred to the supply gutter, the work efficiency is extremely poor, and the automatic process from tab molding to EOE molding is performed. However, there is a problem that it is impossible to perform a continuous and continuous molding operation.

(Means for Solving Problems) The present invention has been made to solve the above-mentioned conventional problems, and therefore, in the tab stocker transfer method of the present invention, an endless circulation transfer path is formed. A main pass line, an empty tab stocker standby station provided in the main pass line, a tab storage station connected to the tab forming press device provided at the end of the empty tab stocker standby station, and the middle of the main pass line And a tab take-out bypass line with multiple tab take-out stations connected to the easy-open lid molding press device at the end of the standby station of the storage tab stocker, and from the tab storage station to the other tab take-out bypass line. A storage tab stop in the middle of the main pass line between -Storage tab stocker storage station provided on the bypass line, and empty tab stocker provided on the bypass line in the middle of the main pass line between the tab take-out bypass line and the standby station of the empty tab stocker ahead Normally, the tabs from the tab forming press machine are stored in the empty tab stocker at the tab storage station on the main pass line, and then the stored tab stocker is conveyed to each tab removal bypass line through the main pass line. After taking out the tabs from each storage tab stocker to the easy open lid molding press machine at the tab ejection station of each tab ejection bypass line, pass each empty tab stocker through the main pass line to the tab accommodation station. When there is a problem with the transport pattern to be transported and the tab forming press machine, take out the storage tab stocker from the storage station of the storage tab stocker bypass line of the storage tab stocker bypass line, and then pass the storage tab stocker through the main pass line to each tab ejection bypass line. After transporting and taking out each tab from each storage tab stocker to the easy open lid molding press machine at the tab take-out station of each tab take-out bypass line, pass each empty tab stocker through the main pass line and empty tab stocker bypass line empty tab In case of trouble with the easy-open lid molding press device, there is a transport pattern to transport the stocker to the stocker station for stocking.
Empty tab stocker After taking out the blank tab stocker from the stocking station of the blank tab stocker in the bypass line, the empty tab stocker is conveyed to the tab storage station through the main pass line, and the tab from the tab forming press machine is transferred to this tab storage station. The storage tab stocker is stored in an empty tab stocker, and then the storage tab stocker is conveyed through the main path line to the storage station of the storage tab stocker on the storage tab stocker bypass line to store the stock tab stocker.

(Operation) In the transfer method of the present invention, in the normal transfer pattern, when the tab punched by the tab forming press device is stored in the empty tab stocker at the tab storage station, the storage tab stocker passes through the main path line. , The tabs are taken out from each tab take-out bypass line and conveyed, and the tabs are taken out from the storage tab stocker and supplied to each EOE molding press device. After that, the tabs punched by one tab forming press device are sequentially supplied to a plurality of EOE forming press devices in the same operation as required.

Next, in the transport pattern when a trouble occurs in the tab forming press device, the storage tab stocker is taken out from the storage station of the storage tab stocker provided in the storage tab stocker bypass line, and this storage tab stocker is used as the main path. The tabs are taken out from the storage tab stocker and fed to each EOE molding press device, and each empty tab stocker from which the tabs have been taken out has its own main path. It is transported to the stocking station of the empty tub stocker installed in the empty tub stocker bypass line through the line and stored there.

Therefore, even while the tab forming press device is stopped due to a trouble, it is possible to continue supplying the tabs from the stocking station of the storage tab stocker to the EOE forming press device.

Next, in the transport pattern when a trouble occurs in the EOE molding press device, the empty tab stocker is taken out from the empty tab stocker storage station provided in the empty tab stocker bypass line, and this empty tab stocker is transferred to the main pass line. It is transferred to the tab storage station through the tab storage station, where the tabs from the tab forming press are stored in the empty tab stocker, and the storage tab stocker is stored through the main pass line. It is transported to the stocking station of the tab stocker and stored there.

Therefore, even while the EOE molding press device is stopped due to a trouble, the tab molding by the tab molding press device can be continued.

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

The drawing shows a carrying device A used in the carrying method of the embodiment of the present invention.
Tab storage station 2 provided in the main pass line 1
2, storage tab stocker bypass line 2, multiple (three in the embodiment) tab take-out bypass line 3, empty tab stocker bypass line 4, storage tab stocker T ₁
Stockpiling station 5, empty tub stocker T ₀ stockpiling station 6, tub storage station bypass line 7
Is provided as a main configuration.

The main path line 1 is formed in an endless circulating conveyance path by a conveyor, and one tab forming press device B and 3
A line is provided so as to pass near the EOE molding press devices C, C, C of the table.

The tab storing station 22 is provided on the main path line in the vicinity of the tab forming press machine B, and the tab storing station 22 is connected to the tab forming press machine B via the tab storing station 21. A standby station 23 of the empty tub stocker T ₀ is provided on the front side of 22.

Then, in this tab storage work step, the tabs punched by the tab forming press device B are tab-stored chute 2 with respect to the empty tab stocker T ₀ transferred from the standby station 23 of the empty tab stocker T ₀ to the tab storage station 22.
When the tab is stored, the next empty tab stocker T ₀ is conveyed to the waiting station 23 on the main path line 1 and stands by, and the tab stocker T ₁ is stored after the tab is stored. Are conveyed on the main pass line 1.

The tab take-out bypass lines 3 are formed in the bypass lines branched from the main pass line 1 in the vicinity of the EOE molding press machine C, and the tabs connected to the EOE molding press machine C via the tab supply chute 31 are provided on the bypass lines. A take-out station 32 is provided, and a standby station 33 for the storage tab stocker T ₁ is provided on the front side of the tab take-out station 32.

Then, in the tab take-out bypass line 3, the tabs are supplied from the storage tab stocker T ₁ that has moved from the standby station 33 of the storage tab stocker T ₁ to the tab take-out station 32 to the EOE molding press device C via the tab supply chute 31. The standby station 33 from the main pass line 1 when the tab is taken out.
The next storage tab stocker T ₁ is transported and stands by,
Moreover, the empty tab stocker T ₀ after taking out the tab is taken out to the main pass line 1.

The storage station 5 of the storage tab stocker T ₁ is formed on the storage tab stocker bypass line 2 which is branched from the middle of the main path line 1 between the tab storage station 22 and the preceding tab take-out bypass line 3, and is used for the tab forming press. Even if device B stops due to trouble, it is stored in the EOE molding press device C. Tab stocker T ₁
The storage tab stocker T ₁ from the tab storage station 22 is stored here so that the storage tab stocker T ₁ can be transported.

The stocking station 6 of the empty tub stocker T ₀ is connected to the empty tub stocker T ahead of the tub removal bypass line 3
_It is formed on the empty tub stocker bypass line 4 branched from the middle of the main pass line 1 up to the waiting station 23 of ₀ , and even if the EOE molding press device C is stopped due to a trouble, the empty tub stocker device B is emptied into the empty tab stocker B. An empty tab stocker T ₀ from the tab take-out bypass line 3 so that T ₀ can be transported.
Is stored here.

Incidentally, in the embodiment, corresponding to the provision of three EOE molding press devices C, the tab storage speed from the tab molding press device B to the empty tab stocker T ₀ in the tab storage station 22 is determined by the tab removal bypass line. The tab feeding speed to the EOE molding press device C in No. 3 is set to 3 times.

Next, an example of a carrying method using the carrying device A will be described.

Normally, the tab punched by the tab forming press device B is stored in the empty tab stocker T ₀ at the tab storage station 22, and the storage tab stocker T that stores the tab here.
₁ is distributed and conveyed to the standby stations 33 of each tab take-out bypass line 3 through the main pass line 1.

At this time, in each tab take-out bypass line 3, at the tab take-out station 32, the previous storage tab stocker T is stored.
_{When the} tab is supplied from ₁ to the EOE molding press device C via the tab supply chute 31, and the empty tab stocker T ₀ is taken out to the main pass line 1 after the tab supply work is completed, the storage tab is received from the standby station 33. Stocker T ₁ moves to tab ejection station 32, E
The tabs are supplied to the OE molding press device C.

Then, the empty tab stocker T ₀ after the tabs are taken out at the tab take-out station 32 of the tab take-out bypass line 3 is conveyed to the empty tab stocker waiting station 23 through the main pass line 1.

In this tab storage work process, the tab storage station 22
The tabs from the tab forming press device B are stored in the empty tab stocker T ₀ via the tab storage chute 21 after the tab storage work is completed, and the storage tab stocker T ₁ is stored.
Is transported to the main pass line 1, the empty tab stocker T ₀ moves from the standby station 23 to the tab storage station 22, and thereafter, the tab stocker is punched by the tab forming press device B while transporting the tab stocker by the same operation as described above. The tabs will be supplied to each EOE molding press device C.

Therefore, in this normal transfer pattern, the tab punched by one tab forming press device B can be continuously and automatically supplied to the three EOE forming press devices C, C, C.

Then, at the time of trouble tab forming press device B, housed tab stocker housing tab stocker T ₁ from stockpiles station 5 of the bypass housing tabs stocker T ₁ provided in the line 2 is taken out to the main pass line 1, the main path line 1 Through each tab take-out bypass line 3.

In each of the tab take-out bypass lines 3, the tabs are supplied to the EOE molding press device C in the same manner as the above-mentioned normal transfer pattern, and after the tabs are taken out, the empty tab stocker T ₀ passes through the main pass line 1. The empty tub stocker T ₀ provided in the empty tub stocker bypass line 4 is transported to the stocking station 6 and stored there. Therefore, in the transport pattern at this time, even if the tab forming press device B is stopped, each EO is
The tabs can be automatically continuously supplied to the E molding press apparatus C, and the EOE molding press apparatus C can be constantly operated without stopping.

Then, at the time of trouble EOE molding press device C, air-tab stocker T ₀ from stockpiles station 6 of the air-tab stocker T ₀ provided in the air-tab stocker bypass line 4 is taken into the main pass line 1, the main path line 1 Through the empty tub stocker waiting station 23
Be transported to.

In the tab storage station 22 ahead of the standby station 23, the tabs from the tab forming press device B are stored in the same manner as the above-described normal transfer pattern, and the storage tab stocker T ₁ after storing the tabs is It is conveyed to the storage station 5 of the storage tub stocker T ₁ provided in the storage tub stocker bypass line 2 through the main pass line 1 and stored there.

Therefore, in the transport pattern at this time, the tabs can be continuously formed by the tab forming press apparatus B even though the EOE forming press apparatus C is stopped, and the tab forming press apparatus B is always stopped without stopping. Can be up and running.

Incidentally, for example, one of the EOE molding press devices C, C, C
When a stand breaks down, the storage tab stocker T ₁ is stocked in the stocking station 4 with this transfer pattern for _one of them, and the tabs are supplied with the normal transfer pattern described above for the remaining two normal cars. It

Further, when the storage tab stocker T ₁ has passed the storage tab stocker bypass line 2 and cannot be conveyed to any of the tab removal bypass lines 3,
It is conveyed as it is on the main pass line 1, and again via the tab storage station bypass line 7 to the tab take-out bypass line 3 or the storage tab stocker bypass line 2.

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, with respect to the tab transport device of the embodiment, a hanger monorail or the like can be used as the main path line in addition to the conveyor, and each bypass line such as a tab storage station bypass line provided in the middle of the main path line is between conveyors. It may be a two-dimensional branch structure or a three-dimensional branch structure using a vertical elevator.

Further, the number of EOE molding press devices is not limited to three, and a plurality of devices may be used.

Further, each operation related to the transportation of each tab stocker is controlled by program control using a computer while detecting and confirming the movement of the tab stocker by a limit switch or a photoelectric tube switch.

(Effects of the Invention) As described above, according to the carrying method of the present invention,
According to the normal transfer pattern, the tab punched by one tab forming press machine can be continuously and automatically supplied to a plurality of EOE forming press machines.

Further, even when the tab forming press device is stopped due to a trouble, the tabs can be supplied to each EOE forming press device, and the EOE forming press device can be constantly operated.

Further, even when the EOE molding press device is stopped due to a trouble, it is possible to continue the molding of the tab by the tab molding press device.

Due to this effect, it is possible to continuously and automatically perform from tab forming by the tab forming press device to EOE forming by the EOE forming press device while utilizing the capabilities of the tab forming press device and the EOE forming press device.

[Brief description of drawings]

The drawing is an explanatory view of a carrying device used for carrying out the carrying method of the present invention. A: Transport device 1: Main pass line 2: Storage tab stocker bypass line 22: Tab storage station 23: Standby station 3: Tab removal bypass line 32: Tab removal station 33: Standby station 4: Empty tab stocker bypass line 5: Stockpiling Station 6: Stockpiling station 7: Tab storage station bypass line B: Tab forming press machine C: EOE forming press machine T ₁ : Storage tab stocker T ₀ : Empty tab stocker

Claims (1)

[Claims] 1. A main pass line forming an endless circulation conveyance path, a standby station for empty tab stockers provided in the main pass line, and a tab forming press device provided ahead of the standby station for empty tab stockers. A tab take-out bypass line, which is provided in the middle of the main path line and a tab take-out station to be connected, and which has a plurality of tab take-out stations connected to the easy-open lid molding press device at the end of the waiting station of the take-up tab stocker. Storage tab stocker in the middle of the main pass line from the tab storage station to the front tab removal bypass line Storage tab stocker storage station provided on the bypass line, and standby standby tray for the empty empty tab stocker from the tab removal bypass line. An empty tab stocker in the middle of the main pass line up to the solution is equipped with a stocking station for the empty tab stocker provided on the bypass line. After storing in the stocker, the storage tab stocker is conveyed to each tab take-out bypass line through the main pass line, and at the tab take-out station of each tab take-out bypass line, the tabs are taken from each take-up tab stocker to the easy-open lid forming press machine. After taking out, each empty tab stocker is transported to the tab storage station through the main path line, and when there is a problem with the tab forming press device, the storage station of the storage tab stocker bypass line is stored in the storage station of the tab stocker bypass line. After taking out the storage tab stocker from the storage tab stocker, convey the storage tab stocker to each tab take-out bypass line through the main pass line, and at the tab take-out station of each tab take-out bypass line, from the storage tab stocker to the easy-open lid molding press device. After taking out each tab, transfer each empty tab stocker through the main pass line to the stocking station of the empty tab stocker on the empty tab stocker bypass line to store it, and in case of trouble with the easy open lid molding press device,
Empty tab stocker After taking out the blank tab stocker from the stocking station of the blank tab stocker in the bypass line, the empty tab stocker is conveyed to the tab storage station through the main pass line, and the tab from the tab forming press machine is transferred to this tab storage station. A tab stocker characterized by having a carrying pattern for storing the stock tab stocker in the empty tab stocker through the main path line and then carrying the stock tab stocker to the stocking station of the stock tab stocker on the bypass tab stocker bypass line for storage. Transportation method.