JPH0731874Y2 - Positioning device for easy opening lid - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a positioning device for an easily openable lid (hereinafter referred to as EOE), more specifically, an adhesive tab type easily openable lid (hereinafter referred to as adhesive EOE, can lid or (Sometimes referred to as a sample) for continuous automatic ultrasonic inspection or printing with an inkjet printer.

[Prior Art and Problems] Conventionally, as a positioning device for EOE or easy open cans, a turntable and an elastic support stopper capable of moving up and down are required, as in Japanese Patent Laid-Open No. 63-218024 "Tab alignment device for easy open cans". There is a part.

However, the conventional EOE positioning device is not used for high-speed printing or attached to a high-speed inspection machine, but for feeding cans to a relatively low-speed inkjet printer, and its can lid is made of A1. There were many cases of EOE.

However, if the can body is tin, tin-free tin such as chromic acid treated steel, that is, steel-based can material such as TFS (tin-free steel), it is a bimetal effect to set only the can lid to A1. As a result, a corrosion current flows from a slight flaw in the inner coating film to form a local battery, which may cause perforation.Therefore, the can body, can bottom (draw and ironing can or D1 can, which is a squeezing and ironing can). In this case, it is desirable that the body and the bottom are of the same material, and the three materials of the can lid are the same material, and in terms of cost, all are steel sheet-based materials for cans.

In addition, in the case of beverage cans containing healthy drinks containing salt, tomato juice, vegetable juice, etc., A1 can and A1EOE could not avoid the risk of perforation unless the inner coating was excellent.

However, steel EOE also has some problems such as difficulty in opening cans and poor local workability, and adhesive tab type EOE has come to be used as a part of the measures.

Therefore, it is necessary to ultrasonically inspect all the adhesive parts of the adhesive tab type EOE at high speed to guarantee the soundness of the adhesive part, and at that time it is also necessary to position the adhesive tab type EOE that is supplied at high speed. It was

However, conventionally, there is no device suitable for high-speed positioning of such an adhesive tab type EOE, which has been a problem.

[Object of the Invention] An object of the present invention is to provide a high-speed and reliable adhesive tab-type opening lid positioning device.

[Configuration of Device] According to the present invention, in the device for positioning the easily openable lid arranged above the peripheral portion of the turret device for feeding the easily openable lid, which is intermittently driven, an annular holder 115 for holding the easily openable lid. A turntable 100 that supports the easily openable lid from below the annular holder, a lift table 105 that rotatably pivotally supports the turntable 100 and that can be raised and lowered, and a lower end of the lift table. A rod 108 pivotally attached to 105 and extending upward;
The upper end of 8 is pivotally attached to one end of a swinging arm 109 swingably pivoted, and the other end of the swinging arm 109 can move up and down above the easy-open lid. One end of the horizontal arm 110 fixed to the sliding shaft 112 can be supported, and the other end of the horizontal arm 110 has a stopper 1 for restricting the lowering of the sliding shaft 112.
There is provided a positioning device for an easily openable lid, which is capable of being supported by 11, and has a tab stopper 114 fixedly attached to a lower end portion of the sliding shaft 112.

The present invention will be described in detail below with reference to examples.

[Embodiment] FIG. 1 is a partially sectional front view of the embodiment.

In FIG. 1, 10 is a vertical frame, 11 is a base frame, 10
0 is a magnet embedded turntable, 100 is a rotating shaft, which is pivotally attached to a lift 105 and is fixed to the upper part of the turntable 100.
The torque is transmitted from the driven gear 102 fixed to the lower part. 2 and 3 are a plan view and a III-III 'sectional view of the magnet-embedded turntable 100, respectively.

The magnet-embedded turntable 100 is in the form of a disk with a concave center, and a large number of permanent magnets (for example, ferrite magnets) are arranged side by side in an arc shape in the order of N, S, N, S ... , It is hard to slip even if the steel EOE is put on and it accelerates rapidly.

Next, referring to FIGS. 1, 2, and 3, the driven gear 10
2 is driven by the drive gear 103 having a wide tooth width,
103 is driven by a belt 104 driven by a pulley of an electric motor (not shown). 120 is a gear
It is the axis of rotation of 103. The gear 102 slides and rises while meshing with the gear 103 even when the lifting table 105 rises, so that the gear 102 is always driven by the gear 103. The rotary shaft 120 of the gear 103 and the thrust support shaft 106 of the lift 105 are respectively the radial thrust ball bearing 1
Base frame 1 with 20A and linear bearing (linear bushing or stroke ball bearing) 107
It is pivotally attached to 1. Further, a swing arm 109 is pivotally attached to a vertical frame 10 fixed to a base frame 11 by a central horizontal shaft (not shown), and a tab stopper is provided at a lower end portion.
A linear bearing that vertically slidably supports a sliding shaft 112 to which 114 is fixed is vertically fixed via a bearing case.

The sliding shaft 112 is fixed in the rotational direction by a spline or the like, and slides in the vertical direction but does not rotate.

Further, the horizontal arm 110 is fitted on the upper part of the sliding shaft 112 so as to be vertically movable by about 5 to 10 mm via a coil spring 210 for urging the horizontal arm 110 downward. The left end of the horizontal arm 100 is supported by the right end of the swing arm, and when it lowers, it is restricted by the stopper 111 at the right end so as not to descend more than necessary. However, the position of each of the horizontal arm 110 and the stopper 111 can be adjusted.

The lifting platform 105 and the swing arm 109 are connected by a rod 108.

An annular holder 115 fixed to the frame 10 is arranged between the tab stopper 114 and the turntable 100.

FIG. 4 is a plan view of a high-speed inspection apparatus 1000 for the adhesive tab type EOE. This inspection device 1000 includes the EOE positioning device 4 of the present invention.
00 is incorporated.

Here, 300 is a can lid sample carrying-in section, 500 is a medium dropping section for ultrasonic inspection, 600 is an ultrasonic inspection section, 700 is a defective can lid discharging section, and 800 is a good can lid discharging section. During these periods, the can lid is transferred while the turret 300 rotates. 701 and 801 are magnet conveyors for discharging the can lid, respectively.

[Operation] FIGS. 5, 6, 7, and 8 are front cross-sectional views of an apparatus showing the operation of the present invention, and FIGS. 9 and 10 are plan views of a can lid and a tab stopper showing the operation of the present invention, respectively. .

In the state shown in FIG. 5, the swing arm 109 tilts to the left and the horizontal arm 110 rises. At this time, the coil spring 210 is compressed and exhibits a cushioning effect. The clearance between the lower tab stopper and the annular holder is the largest at this time, and at this time, the can lid 99 is fed onto the annular holder 115 by the turret 300.

Next, when the swing arm 109 leans to the right, the horizontal arm 110 is lowered, and this time the right end of the horizontal arm is supported by the stopper 111 (sixth).
Figure).

At this position, the tab stopper 114 at the lower end is in close contact with the surface of the can lid with a slight clearance, so that
As shown in FIG. 7, the tab at an arbitrary position is rotationally moved by raising the magnet-embedded turntable 100, which is constantly rotating, so that the can lid is lifted from the annular holder and is rotated, so that the tab stops on the side of the tab stopper 114. Stop when you touch it. At this time, some slippage occurs between the can lid stopped and the turntable 100.

Since the sliding shaft 112 is buffered by the coil spring 210 when the tab stopper 114 just descends onto the can lid tab, the rotation of the turntable 100 causes the tab stopper 114 to gently slide down on the tab and move to a predetermined position. The tab stopper comes into contact with the side surface of the tab, which has approached the surface of the can until the clearance, and has rotated to the correct position, and is positioned (see FIGS. 9 and 10).

After positioning, turntable as shown in Fig.8.
While leaving the can lid 99 on the annular holder 115, the 100 descends while rotating, and returns to the state of FIG. 5 again. The position of the tab stopper can be adjusted both in the rotating direction and in the vertical direction.

[Effects of the Invention] By implementing the present invention, all the above objects can be achieved. That is, a high-speed and reliable adhesive tab-type easy-opening lid positioning device is provided.

[Brief description of drawings]

FIG. 1 is a front sectional view of an embodiment of the present invention. 2 and 3 are a plan view and a III-II of a magnet-embedded turntable, respectively.
It is an I'sectional view. FIG. 4 is a plan view of the adhesive tab type EOE high-speed inspection device, FIGS. 5, 6, 7, and 8 are explanatory views of the operation of the embodiment of the present invention, and FIGS. 9 and 10 are the operational relationship between the can lid and the tab stopper, respectively. It is a top view shown. 10,11 …… Frame, 99 …… Can lid, 100 …… Turntable, 114 …… Tab stopper, 115 …… Circular holder.

Claims (1)

[Scope of utility model registration request] 1. A positioning device for an easily openable lid which is arranged above a peripheral portion of an easily openable lid feeding turret device which is driven to rotate intermittently. An annular holder 11 for holding the easily openable lid.
5, a turntable 100 that supports the easily openable lid from below the annular holder, a lift table 105 that rotatably pivotally supports the turntable 100, and that can be raised and lowered, and a lower end portion that moves up and down. A rod 108 pivotally attached to the base 105 and extending upward
The upper end of the rod 108 is pivotally attached to one end of a swing arm 109 that is swingably attached, and the other end of the swing arm 109 is vertically moved above the easy-open lid. Sliding shaft that enables movement
One end of a horizontal arm 110 fixed to 112 can be supported, and the other end of the horizontal arm 110 can be supported by a stopper 111 for restricting the lowering of the sliding shaft 112. A positioning device for an easily openable lid, wherein a tab stopper 114 is fixed to the lower end of 112.