JPH0213113Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Technical background and conventional examples] The can body is formed by overlapping and bending both edges of the can body and the peripheral edges of the upper and lower can lids. In order to improve the sealing performance of the can body, it is common to apply a liquid synthetic material called a sealing compound to the peripheral edge of the can lid, which solidifies when heated or over time.

Conventionally, there is a device called a lining machine that applies this sealing compound, and this lining machine is a machine in which can lids are conveyed to a circular turntable, and the can lids are placed at equal intervals around the circumferential edge of the turntable. The lower parts are sequentially arranged on the lower parts, and as the turntable rotates, the lower parts are raised one after another, and the can lid is held between the lower parts and the upper parts, which rotate in synchronization with the turntable above the lower parts. , the sealing compound is applied evenly over the entire circumference of the can lid by rotating the can lid itself and using a nozzle member placed beside the upper part as shown in Figure 4. When the coating is completed, the lower parts are lowered one by one, and when the turntable rotates approximately once, the plane of the lower parts becomes flush with the turntable surface, and the coated can lid is transported outward by a turret, etc. It has a mechanism that repeats each rotation of the table.

However, with the above device, the compound adheres to the outer surface of the nozzle tip or near the discharge port,
Moreover, as shown in Figures 5 and 6, this increases over time, and when it dries and solidifies, it prevents the sealing compound from flowing out from the nozzle, which causes the peripheral edge of the can lid to become irregular. As a result, a certain amount of sealing compound is not evenly applied to the positions of the can, and as a result, there is a risk that the scattered sealing compound may stain the can lid or reduce the sealing performance of the can itself.

Therefore, in the past, in order to remove the sealing compound adhering to the nozzle, the device was temporarily stopped and wiped with a cloth, or a solution of the sealing compound was constantly sprayed on the tip of the nozzle member, but this was not done each time. When wiping with a cloth, the machine must be temporarily stopped, which is bad for work efficiency, and it is quite troublesome to accurately spray the solution onto the tip of a dirty nozzle, and it is difficult to remove the peeled seal. There is a risk that the compound will scatter around and stain the can lid.

Due to these drawbacks, recently, as shown in Utility Model Publication No. 59-21893, a brush is placed in the moving area of the nozzle, and this brush is made to rub the outer peripheral surface of the nozzle and the discharge opening. A means for scraping off compound scum adhering to the nozzle has been provided, but in the case of such a device, the scum adhering to the brush due to scraping is blown away by blowing air onto the brush, and the blown scum is collected by a suction device. As a result, there was a problem in that some of the blown debris was scattered around the device, worsening the environment.

[Purpose of invention]

The present invention brings the nozzle into contact with the adhesive tape to peel off the adhesive from the compound scum adhering to the nozzle, thereby preventing the deterioration of the environment around the device due to the scattering of the compound scum that occurs in the past. The tape is raised in a wave motion by blowing air into the gap between the tape and the plate supporting the tape, thereby ensuring that the compound residue is captured by the tape. It is something to do.

〔Example〕

Reference numeral 1 designates a circular turntable, and lower parts 2 are provided at equal intervals on the periphery of the turntable 1 and move up and down sequentially while the turntable 1 rotates, and the can lid 4 is attached to the lower parts. 2 is placed on the lower part 2 by the carrying member 13 before it is raised.

Further, above the turntable 1, a frame body 3 that rotates in synchronization with the turntable 1 is provided oppositely, and on the lower surface of the frame body 3 and above the lower part 2.
A cylindrical body 6 is provided with an upper part 5 at its tip, which clamps the can lid 4 when the lower part 2 is raised, and a cylindrical body 6 is provided at a position facing each of the lower parts 2 and the upper part 5.
Pairs of nozzles 7 are vertically installed, each having a discharge port facing the sealing compound so as to spray sealing compound onto the peripheral edge of the can lid 4 which is held and rotated by the can lid 4.

The shaft 5' of the upper part 5 passes through the cylindrical body 6 and has a small diameter gear 15 at its upper end, and the small diameter gear 15 rotates inside the frame 3 as the frame 3 rotates. Large diameter gear 1 arranged
Since the upper part 5 rotates like a planetary gear around the frame 3, the upper part 5 rotates on its own axis as the frame 3 rotates.

8 is a path through which the can lid 4 is carried into the lower part 2 of the turntable 1 by the carrying member 13, and a turret 14 where the sealing compound is applied.
A guide plate is adjusted on the turntable 1 from the outside toward the center of the turntable 1 between the guide plate and the path carried out by the turntable.

The above is a general form of a conventionally known coating device for this type of compound.

Therefore, the gist of the present invention is to dispose a plate 9 in the moving range (trajectory n) of the nozzle 7 in close proximity to the discharge port of the nozzle 7 and to face it, and to place a feed reel 11 and a take-up reel 12 on this plate 9. The adhesive tape 13 that has been wound around the tape 13 is brought into sliding contact with one side of the tape 13 facing upward, and air is blown between the tape 13 and the plate 9 near one side of the tape 13 to lift the tape. The air nozzle 17 attached to the plate is shown.

The tape 13 is urged into contact with the plate 9 by the front and rear tension rollers 18, and the rollers 18 are of course made of a material that does not adhere to the adhesive tape. The take-up reel 12 is driven intermittently or continuously by a motor 19 to wind the tape to an appropriate length.

[Operation] When the can lid 4 is guided by the guide plate 8 by the carry-in member 13 and sent onto the lower part 2 of the turntable 1, the lower part 2 is in a state in which the can lid 4 is arranged in accordance with the rotation of the turntable 1. , and the can lid 4 is lowered to the lower part 2.
and the upper part 5.

At this time, since the upper part 5 is rotating, the lower part 2 and the can lid 4 also rotate accordingly, and when the can lid 4 begins to rotate, the upper part 5 rotates.
The sealing compound is sprayed by a nozzle 7 provided on the side of the can lid 4, and the sealing compound is evenly and evenly applied over the entire circumferential edge of the can lid 4 as shown in FIG.

Next, when the above application work is completed, the lower part 2 starts to descend one by one as the turntable 1 rotates, and when the turntable 1 rotates approximately one turn and the lower part 2 comes close to the guide plate 8, the lower part 2 starts to move downward. The plane is flush with the turntable surface, the can lid 4 on the lower part 2 is pushed outward by the turret 14, and one step of the coating operation is completed in accordance with one rotation of the turntable.

Next, the turntable 1 continues to rotate to receive the can lid 4 on the lower part 2, but since the lower part 2 is flush with the surface of the turntable 1, it does not come into contact with the stretched guide plate 8 and rotates downward. However, the nozzle 7 passes above the guide plate 8.

Here, the tip of the nozzle 7 passes over the adhesive tape 13 on the plate 9, but at this time, air is periodically jetted from the air nozzle 17 between the adhesive tape 13 and the plate 9, thereby
3 floats up as shown in FIGS. 2 and 3, contacts the tip of the moving nozzle 17 in a wavy manner, and removes the adhesion of compound scum adhering to that part. Also, at this time, the motor 19 of the take-up reel 12
The tape is moved at a slow speed, and parts of the tape to which compound residue has adhered are sequentially wound up, and new tape parts to which no compound residue has adhered are constantly applied to the nozzle.

[Effect of idea]

As described above, according to the present invention, the can lid is held between the lower part and the upper part, rotated and moved, and during this movement, the compound application nozzle is attached to the upper part and moves together with it. Of course, the compound can be applied continuously to the peripheral edge of the can rim, and the compound residue adhering to the nozzle can be removed, that is, cleaned without stopping the machine. In particular, in the present invention, The cleaning described above is carried out using adhesive tape and by adhering the compound residue to the tape, so the residue can be removed reliably, and it has the important feature of eliminating the problem of environmental deterioration around the equipment due to the scattering of compound residue. be.

In addition, the contact effect of the above adhesive tape on the nozzle,
This is done using the wave-like lifting action of the tape caused by air jets between the above tape and the plate on which this tape is brought into sliding contact, so the tape acts as if it were hitting the compound scum, further enhancing the adhesion effect to the tape. Can be done. In addition, it comes into contact with the circumferential side of the nozzle discharge port over a wide range and can effectively remove compound scum from this area, which is a great feature.

[Brief explanation of the drawing]

Figure 1 is a partial perspective view of the device, Figure 2 is a side view of the main parts of the same, Figure 3 is a side view of the same, Figure 4 is an explanatory diagram of the application state, Figures 5 and 6 are the nozzle. It is an explanatory view of a state in which compound scum is attached. 2...Lower part, 4...Can lid, 5...Upper part, 7...Compound application nozzle,
9...Plate, 13...Adhesive tape.

Claims (1)

[Scope of utility model registration request] A device in which a can lid is rotatably sandwiched between a moving lower part and an upper part, and a compound application nozzle attached to the upper part and moved integrally with the can face is exposed at the periphery of the can lid. , a plate is disposed in the moving area of the nozzle in close proximity to the nozzle discharge port, and an adhesive tape for removing compound scum adhering to the nozzle discharge port is slid onto the plate; A sealing compound is applied to the peripheral edge of the can lid, which is characterized by an air nozzle near the side that blows air into the gap between the tape and the plate and causes the tape to float in a wave motion. device to do.