JPH0622465Y2 - A device for applying sealing compound to the peripheral edge of the can lid. - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is suitable for applying a sealing compound residue left on the tip of the nozzle member when applying the sealing compound to the inner surface of the peripheral edge (flange) of the can lid. The present invention relates to an improvement of a device that can be removed reliably and can be applied with an effective sealing compound.

[Prior Art and its Problems] A lower pad for mounting and lowering a can lid at a proper interval on a turntable is provided, and a lower pad is provided directly above the lower pad on a frame body that rotates in synchronization with the turntable and on the lower pad. Can lids that correspond to the upper pads that pinch and rotate the can lids by the raising action, and further that each upper pad is combined with a nozzle member that applies a sealing compound to the inner surface (flange inner surface) of the peripheral edge of the can lid that is pinching and rotating. In a device for applying a sealing compound to the peripheral edge of the, a mat with a brush structure is provided between the route where the can lid is carried into the turntable and the route where the can lid with the sealing compound applied is conveyed from the turntable. Provided and attached to the tip of the nozzle member by the action that the tip of the nozzle member slides on this mat There is a device that scrapes off the remaining sealing compound slag, blows off this slag with pressure air ejected from an air nozzle, and sucks and recovers it with a suction duct. (For example, see Japanese Utility Model Publication No. 59-21893) The above-mentioned conventional techniques have the following problems.

(a) Since the tip locus of the nozzle member with respect to the mat is constant, the mat is locally worn and the efficiency of scraping off the slag is reduced. In order to prevent this, the mat has to be moved regularly, and maintenance is complicated.

(b) There is no guarantee that the slag adhering to the mat will be reliably blown out by the air pressure ejected from the air nozzle, and there is no guarantee that it will be sucked and collected by the suction duct, and the slag can be carried away by the tip of the nozzle member. .

(c) The slag that is blown off may be scattered to the outside without being sucked and collected by the suction duct, which may stain the turntable or cause the slag to intervene on the flange portion of the can lid to be applied.

In order to solve such a problem, a plate is disposed between the loading and unloading parts of the can lid so as to be close to the tip of the nozzle member, and the slag attached to the tip of the nozzle member is attached to the plate. An apparatus has been proposed in which an adhesive tape for adhering and removing the adhesive tape is arranged so as to be able to be wound and driven, and air is blown into the gap between the plate and the adhesive tape to face an air nozzle for floating the adhesive tape in a wavelike manner. ing. (For example, Japanese Utility Model Laid-Open No. 61-115164) According to this device, the above-mentioned problems of the prior art are solved, but this device requires an air nozzle structure, which naturally adds complexity to the device. In other words, the adhesive tape may be cut by the tip of the nozzle member that rubs against it, and there is a major problem in maintenance management such that connection of the adhesive tape or replacement work is required at the time of cutting.

The purpose of the present invention is to use the characteristics of the above-mentioned two prior arts to remove the slag adhering to the tip of the nozzle member from the rotating wiping mat and to remove the slag adhering to it with an adhesive tape. In order to improve the coating efficiency of the sealing compound on the inner surface of the flange of the can lid, a device is provided which does not remove the slag or block the tip of the nozzle.

[Means for Solving the Problems] In the structure of the present invention for solving the problems of the prior art, a lower pad that mounts a can lid and moves up and down sequentially while the turntable makes one rotation is provided on the periphery of the turntable.
On the turntable, a frame body that rotates in synchronism with the turntable is provided oppositely, and further, at a position facing each of the lower pads on the lower surface of the frame body, the can lid is clamped by raising the lower pad, Further, in a device provided with an upper pad to be rotated and a nozzle member for applying a sealing compound to a peripheral edge of the upper lid while the lower lid and the upper pad are being clamped and rotated, the can lid is turned. A wiping mat was provided at least in the peripheral edge portion between the path for carrying in the table and the path for carrying out the sealing compound-coated can lid from the turntable, corresponding to the rotational trajectory of the tip of the nozzle member. In addition to disposing a rotating disk, a rotating roller for pressing an adhesive tape driven to be wound is disposed on the upper surface of one side of the wiping mat. It is characterized in.

[Operation] The slag of the sealing compound attached to the tip of the nozzle member is attached to and removed from the wiping mat provided on the rotating turntable, and the attached slag is removed by the adhesive tape to clean the wiping mat.

[Embodiment] Next, details of an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a part of the device of the present invention, FIG. 2 is a perspective view of an essential part of the same, FIG. 3 is a partially cutaway front view of the same, and FIG. 4 is a perspective view of a turntable part.

Reference numeral 1 is a turntable having a circular planar shape, and the turntable 1 is provided at a peripheral portion of the turntable 1 at appropriate intervals.
Is provided with a lower pad 2 that moves up and down sequentially during one rotation, and the can lid 3 is arranged on the lower pad 2 by the carry-in member 4 before the lower pad 2 moves up. A ring-shaped frame body 5 that rotates in synchronization with the turntable 1 is provided above the turntable 1, and corresponds to the lower side of the frame body 5 and the upper side of the lower pad 2. At the position, a cylindrical body 7 rotatably provided at the tip thereof is provided with an upper pad 6 for holding the can lid 3 by raising the lower pad 2, and the can lid 3 held by the lower pad 2 and the upper pad 6. A pair of nozzle members 8 for spraying and applying a sealing compound are vertically provided on the inner surface of the flange portion.

The shaft 9 of the upper pad 6 penetrates the cylindrical body 7 and a small diameter gear 10 is provided at the upper end thereof. The small diameter gear 10 is accommodated in the frame body 5 in accordance with the rotation of the frame body 5. It is configured to rotate like a planetary gear with respect to the large-diameter gear 11 disposed in, that is, the upper pad 6 rotates and revolves along with the frame body 5. In the figure, 12 is a pipe for supplying the sealing compound, and 13 is provided between the loading / unloading path of the can lid 3 and from the outside toward the center of the turntable 1 regardless of the turntable 1. It is a guide plate of the can lid 3.

In the coating apparatus constructed as described above, the present invention provides a wiping mat 14 having a brush structure having a moderate rigidity and flexibility on the outer periphery of the upper surface of the guide plate 13 as is apparent from FIGS. A turntable 15 attached with is provided. The wiping mat 14 provided on the turntable 15 has a certain required width, and the turntable 15 is positioned so that the turning locus of the tip opening of the nozzle member 8 crosses the center of the wiping mat 14. It is a thing. A shaft 16 for supporting the turntable 15 is pivotally supported on the tip of a horizontal arm 17 attached to a machine frame (not shown) provided on the outer side of the turntable 1, and the shaft 16
A pulley 18 is attached to the.

Reference numeral 19 denotes an air motor horizontally mounted on the frame 21, and the output shaft of the air motor 19 has a horizontal worm.
23, the worm 23 is provided with the horizontal arm 17
A gear 24, which is axially supported above, is meshed. Axis of gear 24 above
A pulley 26 is provided on 25, and the pulley 26 and the pulley 18 provided on the shaft 16 of the rotary disc 15 are connected by a belt 27 so that the drive of the air motor 19 is transmitted to the rotary disc 15. Is configured. The rotation direction of the turntable 15 is opposite to that of the turntable 1 as shown in FIG. In the figure, 28 is a tension pulley of the belt 27.

Reference numeral 29 denotes a reel for reeling out an adhesive tape 31 rotatably supported on a frame 30 and having a width larger than the width of the wiping mat 14, and the reel 29 is attached to the shaft of the reel 29. A friction mechanism 32 for freely rotating and preventing looseness of the adhesive tape 31 is connected. on the other hand,
A vertical air motor 33 is installed above the frame 20. A vertical worm 34 is provided on the vertical axis of the air motor 33, and a gear 35 is meshed with the worm 34. A rubber roller 36 in a horizontal posture is provided on the. Reference numeral 37 is a take-up reel for the adhesive tape 31 that is vertically supported on the frame 20.
On one side, a disk 38 having a diameter larger than this and having an outer peripheral surface subjected to knurling or the like is provided, and the rubber roller 36 provided on the gear 35 is brought into pressure contact with the disk 38, and the air motor
The drive of 33 is transmitted to the take-up reel 37.

As is apparent from FIGS. 2 to 4, the horizontal arm is provided on the upper surface of one side of the wiping mat 14 of the rotary disk 15, more specifically, on the upper surface of one side outside the sliding track of the nozzle member 8 with respect to the wiping mat 14. The rotating roller 39 in the horizontal position provided on 17 is pressed against. This rotating roller 39, as shown in FIGS.
The wiping mat 14 is formed to be longer than the width of the wiping mat 14, and the entire width of the wiping mat 14 is pressed against the rotating roller 39. The adhesive tape 31 delivered from the delivery reel 29 is guided by the guide roller 40 axially supported by the frame 30 and wound around the rotary roller 39, and further guided by the guide roller 41 axially supported by the frame 20. Guided, the adhesive tape 31 is wound around the take-up reel 37 in a V-shaped posture. Both guide rollers 40, 41
As shown in FIG. 2, since the rotating roller 39 is located between the belts 27, the adhesive tape 31 guides the adhesive tape 31 so as not to contact the belt 27.

[Description of Operation] Next, the operation of the above embodiment will be described. When the can lid 3 is guided by one end edge of the guide plate 13 by the carry-in member 4 and fed onto the lower pad 2 of the turntable 1, the lower pad 2 will be described. 2 rises in sequence with the can lid 3 arranged as the turntable 1 rotates,
The can lid 3 is sandwiched between the lower pad 2 and the upper pad 6.

At this time, since the upper pad 6 is rotating,
Both the lower pad 2 and the can lid 3 rotate accordingly. When the can lid 3 starts to rotate, the sealing compound is jetted by the nozzle member 8 provided as a pair on one side of the upper pad 6, and the sealing compound is uniformly applied to the inner surface of the flange portion of the can lid 3.

When the application work is completed in this way, the lower pad 2 starts to descend sequentially in accordance with the rotation of the turntable 1, and when the lower table 2 comes close to the guide plate 13 when the turntable 1 makes one revolution, the lower pad 2 The upper surface of 2 is substantially flush with the upper surface of the turntable 1, and the can lid 3 on the lower pad 2 is pushed outward by the turret 42, and one step of the coating operation is completed in accordance with one rotation of the turntable 1.

Subsequently, the turntable 1 continues to rotate to receive the can lid 3 on the lower pad 2, but since the lower pad 2 is flush with the surface of the turntable 1, it passes below without contacting the guide plate 13. However, the tip of the nozzle member 8 passes above the guide plate 13.
At this time, the tip of the nozzle member 8 is rubbed against the wiping mat 14 provided on the turntable 15 rotating by the guide plate 13,
By the action of the wiping mat 14 which rotates in the direction opposite to the rotating direction of the turntable 1, the slag of the sealing compound adhering to the tip of the nozzle member 8 is scraped off, and the slag is rotated in the state of adhering to the wiping mat 14. The board 15 continues to rotate.

Then, the slag transferred and adhered to the wiping mat 14 is adhered to and removed from the surface of the wiping mat 14 and the adhesive tape 31 moving between the rotating roller 39 pressed against the surface of the wiping mat 14 to remove the slag.
14 is always cleansed. The above operation is continuously performed.

[Effect of the Invention] According to the configuration of the present invention as described above, the following effects can be obtained.

(a) Since the wiping mat has a brush structure, the tip opening of the nozzle member is not blocked by the slag of the sealing compound, so that a smooth coating operation can be continuously performed.

(b) Since the wiping mat is provided on the turntable, the entire surface of the wiping mat is effectively used. Since the wiping mat is not localized as in the conventional case, there is no local damage and the wiping mat is replaced less frequently.

(c) Since the slag attached to the wiping mat can be removed by adhering to the adhesive tape, not only the adhesive tape is not cut as in the past, but the surface of the wiping mat is always cleaned and the slag is removed as before. There is no stain caused by taking away.

[Brief description of drawings]

FIG. 1 is a perspective view of a part of the device of the present invention, FIG. 2 is a perspective view of an essential part of the same, FIG. 3 is a partially cutaway front view of the same, and FIG. 4 is a perspective view of a turntable part. 1 ... turntable, 2 ... lower pad, 3 ... can lid, 4 ... carrying member, 5 ... frame, 6 ... upper pad, 7 ... cylindrical, 8 ... nozzle member, 9 ... Axis, 10 ...
… Small-diameter gear, 11 …… Large-diameter gear, 13 …… Guide plate, 14 …… Wipe mat, 15 …… Spindle, 29 …… Supply reel, 31 …… Adhesive tape, 37 …… Take-up reel, 39 ...
… Rotating rollers.

Claims (1)

[Scope of utility model registration request] 1. A frame body, which is provided with a lower pad on which a can lid is placed and which is sequentially moved up and down while the turntable makes one revolution, provided on a peripheral portion of the turntable, and which rotates on the turntable in synchronization with the turntable. Oppositely, further holding the can lid at a position facing each of the lower pads on the lower surface of the frame body by raising the lower pad, and
In an apparatus equipped with a rotating upper pad and a nozzle member for applying a sealing compound to the peripheral edge of the can lid while the can lid is clamped and rotated by the lower pad and the upper pad, the can lid is attached to a turntable. A turntable having a wiping mat provided at least at the peripheral edge thereof corresponding to the turning locus of the tip of the nozzle member between the path for carrying in and the path for carrying out the can lid already coated with sealing compound from the turntable. An apparatus for applying a sealing compound to the peripheral edge of a can lid, characterized in that a rotary roller for pressing an adhesive tape to be wound is pressed on the upper surface of one side of the wiping mat.