JPS5921893Y2 - A device that applies sealing compound to the peripheral edge of can lids. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved apparatus for applying sealing compound to the peripheral edge of a seal.

The case is formed by overlapping and bending both edges of the can body and the peripheral edges of the upper and lower bezels. At this time, in order to improve the sealing performance of the can, there are It is common to apply a liquid synthetic material called a sealing compound that solidifies when heated or over time.

Conventionally, there is a device called a lining machine that applies this sealing compound, and this lining machine transfers the preparation conveyed to a circular turntable to lower pads provided at equal intervals around the periphery of the turntable. The lower pads are sequentially placed on top of the turntable, and the lower pads are sequentially raised as the turntable rotates, and the lower pads are held between the lower pad and each upper pad that rotates in synchronization with the turntable above the lower pad. The sealing compound is rotated and the sealing compound is applied evenly over the entire circumference of the pad using a nozzle member placed beside the upper pad. When the application is completed, the lower pad is lowered one after another. When the turntable rotates once, the plane of the lower pad becomes the same plane as the turntable surface, and the coated material is transported outward by a turret, etc., and this process is synchronized with one rotation of the turntable. It is a repeating mechanism.

However, as shown in Figure 2, the above device has the disadvantage that the sealing compound often adheres to the outer surface of the tip of the nozzle member that applies the sealing compound or near the discharge port, and when the sealing compound dries and solidifies, it is discharged from the nozzle. This prevents the sealing compound from flowing out, which results in the volume of sealing compound not being evenly applied to the correct location around the peripheral edge of the fixture, which may result in the spilled sealing compound contaminating the fixture. There is a risk that the sealing performance of the can itself may deteriorate.

Therefore, in the past, in order to remove the sealing compound adhering to the nozzle, the device was temporarily stopped and the device was wiped off with a cloth, or the sealant liquid of the sealing compound was constantly sprayed on the tip of the nozzle member. 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 the peeled-off sealing compound is scattered all over the place. There is a risk of contaminating the reserve.

The present invention has been made to solve the above-mentioned problems with a simple structure, and an embodiment thereof will be explained below with reference to the drawings. 1 is a circular turntable, and the peripheral edge of the turntable 1 is Turntable 1 at equal intervals
Lower pads 2 which are raised and lowered sequentially during one rotation are provided, and the support 4 is placed on the lower pads 2 by a carry-in member 13 before the lower pads 2 are raised.

Further, above the turntable 1, a frame body 3 that rotates in synchronization with the turntable 1 is provided oppositely, and the frame body 3
On the lower surface of the cylindrical body 6 and at a position opposite to each of the lower pads 2, there is a cylindrical body 6 having an upper pad 5 at its tip which holds the support 4 as the lower pad 2 rises, and a cylindrical body 6 beside the cylindrical body 6; A pair of nozzle members 7, each having a discharge port facing the circumferential edge of the sealing pad 4 which is held and rotated by the lower pad 2 and upper pad 5 and injects sealing compound, are vertically installed in pairs.

The shaft 5' of the upper pad 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. Since the upper pad 5 rotates like a planetary gear around a large-diameter gear 15' disposed in the upper pad 5, the upper pad 5 rotates on its own axis as the frame 3 rotates.

8 is located between the path where the preparation 4 is carried into the lower pad 2 of the turntable 1 by the carrying member 13 and the path where the sealing compound is applied and carried out by the turret 14, and at the center of the turntable 1 from the outside. This is a guide plate stretched over the turntable, and the upper surface of the guide plate 8 has an outer circumferential surface along the trajectory of the nozzle 7' attached to the nozzle member 7 passing over the guide plate. A soft screen wall 9 to be rubbed and a mat 10 in which a soft brush to be rubbed is planted in its discharge port are arranged by a holder 8'. A jet port of an air pipe 11 faces to blow off the sealing compound residue scraped off from the nozzle 7' by the nozzle 7', and a suction hole 12 is provided on the outside of the turntable 1 and in the direction of blowing off the sealing compound. .

Next, we will describe the process of applying sealing compound to the preparation by this device. When the preparation 4 is guided by one edge of the guide plate 8 by the carry-in member 13 and sent onto the lower pad 2 of the turntable 1, the lower pad The pads 2 are successively raised in a state in which the pads 4 are arranged in accordance with the rotation of the turntable 1, and the pads 4 are held between the lower pad 2 and the upper pad 5.

At this time, since the upper pad 5 is rotating, the lower pad 2 and the retainer 4 also rotate accordingly, and when the retainer 4 begins to rotate, the sealing compound is sprayed by the nozzle 7' provided on the side of the upper pad 5. Then, the sealing compound is applied evenly and evenly over the entire circumferential edge of the preparation 4 as shown in FIG.

Next, when the above coating work is completed, the lower pad 2 starts to descend one by one in accordance with the rotation of the turntable 1.
When the turntable 1 rotates approximately ■ and the lower pad 2 comes close to the guide plate 8, the plane of the lower pad 2 becomes the same plane as the turntable surface, and the lower pad 2
The upper preparation 4 is pushed outward by the turret 14, and one stroke of the coating operation is completed in synchronization with one rotation of the turntable 1.

Next, the turntable 1 continues to rotate to receive the support 4 on the lower pad 2, but since the lower pad 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, since the nozzle member 7 passes above the guide plate 8, as shown in FIG.
The outer circumferential surface and discharge port of the nozzle 7' rub against a soft screen wall 9 arranged on the upper surface by a holder 8' and a mat 10 on which soft brushes are planted, and the sealing compound adheres to the nozzle 7'. The dregs are scraped off.

The scraped-off sealing compound is transferred to the air pipe 11 whose outlet faces the screen wall 9 and the mat 10.
The suction hole 12 is blown away by the air ejected by the
is sucked into and expelled.

Since the present invention is configured as described above, the sealing compound adhering to the nozzle is scraped off before the preparation is carried into the turntable, so that the sealing compound adhering to the nozzle hardens and is discharged from the nozzle. This prevents the sealing compound from flowing out and prevents the preparation from getting dirty or the sealing performance of the can itself being deteriorated, and the turntable is rotated to scrape off the residue of the sealing compound adhering to the nozzle, making it easy to use the device. Its practicality is extremely high, as it saves the trouble of stopping the process and wiping it off with a cloth or spraying the solution, improving work efficiency.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing an embodiment of the present invention, Fig. 2 is a front view showing sealing compound adhered to the nozzle, and Fig. 3 is a spraying of sealing compound from the nozzle to the peripheral edge of the seal. FIG. 4 is a state diagram showing that the sealing compound adhering to the nozzle is scraped off. 1... Turntable, 2... Lower pad, 3... Frame, 4... Preparation, 5
...Upper pad, 7...Nozzle member, 7'...Nozzle, 8...Guide plate, 8'...Holder, 9 ...Screen wall, 10...Mat, 11...
・Air pipe, 12... Suction hole.

Claims (1)

[Scope of utility model registration request] A lower pad is provided on the periphery of the turntable that is moved up and down sequentially while the turntable is rotating once, and a lower pad is provided on the periphery of the turntable. The lower pad is raised to sandwich and rotate the upper pad at a position facing each of the lower pads on the lower surface of the frame, and the peripheral edge of the upper pad is held and rotated by the lower pad and the upper pad. and a nozzle member for applying a sealing compound to the turntable. A plate is stretched over the guide plate, and a soft member is provided on the guide plate for scraping off sealing compound residue adhering to the nozzle discharge port and outer peripheral surface of the nozzle member passing above. 1. A device for applying sealing compound to the peripheral edge of a preparation, characterized by having an air pipe for blowing away the scum that has been blown away, and a suction hole for recovering the scum that has been blown away by the air pipe.