JPH081016Y2 - High viscosity material coating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a high-viscosity material coating device for annularly coating a high-viscosity material such as a sealer on a work.

(Prior Art) Conventionally, a high-viscosity material coating apparatus of this type is disclosed in Japanese Patent Laid-Open No. 62-277.
As seen in Japanese Patent Publication No. 177, a coating head provided with a drive motor is provided with a rotary shaft that is directly connected to the drive motor and rotates, and further, a dimension that is a turning radius with a shaft center of the rotary shaft is biased. There is a nozzle that swivels with care.
The coating head has a built-in flow passage for circulating a high-viscosity material. One end of the flow passage is connected to the nozzle through the rotary shaft, and the other end is connected to the outside through a socket provided in the coating head. It is connected to a supply hose that supplies high viscosity material.

As described above, in the high-viscosity material coating device, the high-viscosity material supply hose is connected via the coating head without affecting the swiveling motion of the nozzle.

However, for example, a nozzle is provided with a piston built-in member that contains a piston that opens and closes by air, and an air hose that sucks and discharges air from the piston built-in member and a supply hose that supplies a high-viscosity material such as a sealer are connected. If the nozzle device is directly connected to the drive motor by the device, the drive motor has a disadvantage that the load due to the weight of the nozzle device becomes large and the swivel drive is hindered. In addition, the drive motor has a disadvantage that the hose connected to the nozzle device is an obstacle and a smooth turning drive cannot be performed.

(Problems to be solved by the invention) By solving such inconvenience, the present invention reduces the weight of the nozzle device and the load on the drive motor due to the connection of a hose or the like for supplying a high-viscosity material, thereby making the nozzle device smooth. It is an object of the present invention to provide a high-viscosity material coating device that can be swivel-driven.

(Means for Solving the Problem) In order to achieve the above object, the present invention connects a nozzle device for ejecting a high-viscosity material to a rotary shaft of a drive motor to drive the nozzle so as to rotate the high-viscosity material on a workpiece. In a high-viscosity material coating device for applying to a nozzle, a first holding part that holds the nozzle device linearly movably in a horizontal direction and a direction perpendicular to the moving direction of the nozzle device held by the first holding part. A second holding part that holds the first holding part linearly movably in the horizontal direction, a fixing part that fixes the second holding part, and a vertical rotation of the drive motor that is fixed to the fixing part. One end is connected to the rotary shaft at a position horizontally displaced from the axis of the shaft as a turning radius of the nozzle, and the other end is moved by the first holding unit in the moving direction of the nozzle device. At a position perpendicular to the vertical And a connecting shaft rotatably connected to the nozzle device.

(Operation) The present invention includes a first holding portion that holds the nozzle device,
The nozzle device is rotatably provided by the second holding part that holds the first holding part. That is, the first holding unit holds the nozzle device movably in the horizontal direction, and the second holding unit holds the nozzle device movably in the horizontal direction orthogonal to the moving direction of the first holding unit. This allows
The nozzle device is held so as to be movable in the horizontal direction in the front-rear direction and the left-right direction which are orthogonal to each other, and can be swung.

Further, since the nozzle device rotatably held by the first holding portion and the second holding portion is provided by shifting the rotation shaft of the drive motor in parallel by the connecting shaft, A circular motion is performed in the horizontal direction with the size of the misalignment as the radius.

In this way, the fixed portion bears the load of the nozzle device by the first holding portion and the second holding portion, so that the load on the drive motor can be reduced and the swiveling drive can be smoothly performed. And

(Embodiment) An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic explanatory view of the present embodiment, FIGS. 2 and 3 are enlarged explanatory views of the main part, and FIGS. 4 (a) to 4 (d) are operation explanatory views of the present embodiment.

The high-viscosity material coating device 1 of the present embodiment is for coating a ring-shaped coating point P of a work W with a sealer which is a high-viscosity material.

As shown in FIG. 1, the high-viscosity material coating apparatus 1 includes a nozzle device 2 for discharging a sealer, and the nozzle device 2
The swirl coating device 3 for swiveling the workpiece W, the table device 4 for mounting the work W, and the swirl coating device 3 at a position corresponding to the coating point P of the sealer of the work W mounted on the table device 4. It comprises a positioning device 5 for moving and positioning.

 First, the table device 4 will be described.

As shown in FIG. 1, the table device 4 is composed of a disc-shaped turntable 6 and a drive motor 7 for horizontally rotating the turntable 6.

More specifically, the turntable 6 has a rotation shaft 8 provided at a central portion thereof and a support portion provided at an upper portion of a base 9.
A turntable 6 is rotatably supported, and a roller 11 is provided along the upper portion of the base 9 to stably rotate the turntable 6. The drive motor 7 is fixed to a base 9 and is connected to a rotary shaft 8 of the turntable 6 via a coupling member 12.

The table device 4 rotates the turntable 6 to move the work W to the work position and position the work W at the work position.

 Next, the positioning device 5 will be described.

As shown in FIG. 1, the positioning device 5 moves and positions a later-described turning coating device 3 to a position corresponding to the work W placed on the table device 4.

Specifically, the base 13 has a pair of rails 14 extending in a direction orthogonal to the plane of the drawing, and a sliding member 15 that slides along the rails 14 is provided, and the first moving unit is movable. 16 are provided. Although not shown in detail, the first moving portion 16 is driven in the moving direction by a screw rod 17 rotatably provided in parallel with the rail 14. That is, this is rotatably supported by the base 13 along the rail 14 and is rotated by a motor 18 to be screwed with the screw rod 17.
The moving unit 16 is moved.

The first moving portion 16 is provided with a pillar 19 extending upward. A rail 20 extending in the left-right direction in FIG. 1 is provided on the upper portion of the support column 19, a screw rod 21 is rotatably supported along the rail 20, and sliding along the rail 20. A second moving portion 23 that includes the member 22 and is movable is provided. The screw rod 21 has a driven pulley 24 provided at one end thereof.
Is wound around the drive pulley 26 of the motor 25 by the belt 27, and thus is rotated by the motor 25. The screw rod 21 is screwed into the second moving portion 23, and moves the second moving portion 23 in the same manner as the first moving portion 16 as the motor 25 rotates.

The second moving section 23, as shown in FIG. 1 and FIG.
A vertically extending rail 28 is provided, a screw rod 29 is rotatably supported by bearings 30 and 31 in parallel with the rail 28, and a slide member 32 that slides along the rail 28 is provided so that the rail 28 can be moved up and down. Elevating part 33 is provided. As shown in FIG. 3, the screw rod 29 is connected at its upper end via a coupling member 36 to a motor 35 fixed to the upper portion of a frame 34. A slider 37 provided on the elevating part 33 is screwed to the screw rod 29, and the elevating part 33 is moved up and down by the movement of the slider 37 by the rotation of the motor 35.

The elevating unit 33 includes a swinging unit 38 that swings the swirl coating device 3. The swinging unit 38 includes a motor 39 and a motor 39 as shown in FIGS. 2 and 3. The rotation of the vertical shaft 41 connected by the coupling member 40 to the horizontal shaft 42
A gear box 43 for transmitting to the frame is fixedly provided to the frame 44. The horizontal shaft 42 is rotatably held by a bearing 46 provided on the frame 44 via a bracket 45.

A swirl coating device 3 to be described later is connected to the tip of the horizontal shaft 42, and the rotation of the horizontal shaft 42 swings the swirl coating device 3.

Therefore, the swirl coating device 3 is moved in the front-rear direction, the left-right direction, and the up-down direction by the first moving unit 16, the second moving unit 23, and the elevating unit 33, and is further swung by the swinging unit 38. It

In this way, the swivel coating device 3 is moved to the position corresponding to the work W placed on the table device 4 by the positioning device 5, and the nozzle device 2 described later is set at the sealer coating point P of the work W. Positioned face to face.

Next, the swirl coating device 3 will be described in detail.

As shown in FIGS. 2 and 3, the swirl coating device 3 includes a fixed portion connected to the end of the horizontal shaft 42 of the swinging portion 38.
47, a drive motor 49 fixed to the fixed portion 47 and having a rotating shaft 48 at the bottom, a nozzle 50, and a piston mechanism (not shown) that controls the discharge of the sealer by opening and closing the nozzle 50 by air, The nozzle device 2 is connected to an air hose 51 that sucks and exhausts air and a supply hose 52 that supplies a high-viscosity material such as a sealer.

The nozzle device 2 is fixed to a holder 53, and the holder 53 is held by a first holding portion 54. Further, the first holding portion 54 is provided with a second holding portion 56 via a mounting base 55.
Held in. The second holding portion 56 is fixed to the fixing portion 47.

The first holding portion 54 is composed of a fixed rod 57 supported horizontally at both ends of a mounting base 55, and a sliding member 58 slidably provided along the fixed rod 57. . Since the sliding member 58 and the holder 53 for fixing the nozzle device 2 are connected, the nozzle device 2 is linearly movable in the horizontal direction.

Further, both ends of the second holding portion 56 are supported on the mounting base 55, and a rod 59 horizontally extended in a direction orthogonal to the fixed rod 57 of the first holding portion 54, and the rod 59.
And a supporting member 60 that slidably supports in the longitudinal direction. The support member 60 is fixed to the fixing portion 47. That is, the mounting base 55 moves together with the rod 59 as the rod 59 slides.

Therefore, the nozzle device 2 includes the first holding portion 54 and the second holding portion.
56 is connected and held to the fixed portion 47 via the fixed portion 47.
When is set as a reference position, it can be moved in the horizontal direction in the front, rear, left and right directions. That is, the nozzle device 2 is held by the fixed portion 47 in a state where it can be swung.

A connecting shaft 62 is rotatably supported in the holder 53 of the nozzle device 2 via a supporting portion 61 in a vertical direction. The connecting shaft 62 is connected to a rotating shaft 48 extending vertically from a drive motor 49 via a connecting member 63. The connecting member 63 is
The connecting shaft 62 is connected by shifting the dimension 1 in the horizontal direction from the axis of the rotary shaft 48 of the drive motor 49. This allows
The connecting shaft 62 is pivoted in the horizontal direction with a radius of 1 as the rotating shaft 48 of the drive motor 49 rotates. Therefore, the nozzle device 2 connected to the rotating connecting shaft 62 via the holder 53 is driven to rotate by the drive motor 49.

The connecting member 63 has a screw rod 64 extending in the horizontal direction.
And a rotary actuator 65 for rotating the screw rod 64.
It has and. The screw rod 64 is screwed onto the upper end portion of the connecting shaft 62, and the dimension l of the axial misalignment between the connecting shaft 62 and the rotary shaft 48 of the drive motor 49 can be varied by the rotation of the rotary actuator 65. Therefore, the turning radius of the nozzle device 2 can be appropriately determined.

The nozzle device 2 is swiveled along the sealer coating point P of the work W by the swirl coating device 3 configured as described above.

Next, the operation of the high-viscosity material coating apparatus 1 of this embodiment will be described.

First, the work W is placed on the turntable 6 of the table device 4.
Place on top. Then, the turntable 6 is rotated by rotating the drive motor 7 of the table device 4, and the work W is moved to a predetermined position and then stopped. As a result, the work W is positioned at the work position.

Subsequently, the nozzle unit 2 of the swirl coating device 3 is moved to a position corresponding to the work W by the first moving unit 16, the second moving unit 23, and the elevating unit 33 of the positioning device 5, and the nozzle
Position 50 by facing the sealer application point P of the work W. At this time, when the coating point P of the work W is on the inclined surface of the workpiece W, the swing coating device 3 is swung by the swinging portion 38 to make the nozzle 50 face the sealer coating point P of the work W.

Then, the rotary shaft 48 of the drive motor 49 of the swirl coating device 3
To rotate the nozzle device 2. At this time, the nozzle device 2 previously rotates the screw rod 64 of the connecting member 63 by means of the rotary actuator 65 so that the connecting shaft 62
The gyration radius of the nozzle device 2 is determined by shifting the axis of the nozzle motor 2 from the axis of the rotary shaft 48 of the drive motor 49.

Then, while rotating the nozzle device 2, the sealer is discharged from the nozzle 50 provided in the nozzle device 2.

The operation of the nozzle 50 at this time is shown in FIGS.
Follow the instructions below.

As described above, the rotation shaft 48 of the drive motor 49,
The pair of support members 60 of the second holding portion 56 are fixed in place by a fixing portion 47. The pair of rods 59 supported by both support members 60 are both slidable in the longitudinal direction. The rod 59 and the fixed rod 57 of the first holding portion 54
Are integrally provided with the mounting member 55, and follow the movement of the rod 59 and are moved in the same direction as the rod 59. A sliding member 58 is provided slidably along the fixed rod 57, and the holder 53, the connecting shaft 62, and the nozzle 50 move together with the sliding member 58 along the longitudinal direction of the fixed rod 57. .

First, as shown in FIG. 4A, the nozzle 50 is positioned at the starting point of the coating point P on the surface of the work W.

Subsequently, as shown in FIG. 4 (b), the connecting shaft 62 is driven to rotate as the rotating shaft 48 rotates. Reference symbol a is a connecting shaft 62
The movement locus of is shown. With the movement of the connecting shaft 62, the rod 59 is moved leftward as shown by the arrow in the figure. The rod
By moving 59, the fixed rod 57 is moved in the same direction. On the other hand, the sliding member 58 is moved in the downward direction indicated by the arrow in the figure, and accordingly, the nozzle 53 together with the holder 53 is denoted by the symbol b.
The nozzle 50 is rotated along the trajectory b, and the sealer is discharged from the nozzle 50 along the trajectory b.

Subsequently, as shown in FIG. 4 (c), the connecting shaft 62 is swiveled along the trajectory a along with the rotation of the rotating shaft 48. With the movement of the connecting shaft 62, the rod 59 is further moved leftward as shown by the arrow in the figure. As the rod 59 moves, the fixed rod 57 moves in the same direction. On the other hand, the sliding member 58 is folded back in the moving direction at the end of the fixed rod 58,
Head toward the center of the fixed rod 58 and, accordingly, the nozzle
The reference numeral 50 turns along a locus indicated by reference numeral b, and the sealer is discharged from the nozzle 50 along the locus b.

Subsequently, as shown in FIG. 4D, the connecting shaft 62 is further moved by the rotating shaft 48. The rod 59 is a support member 60.
When the end portion is located at, the sliding direction is folded back and moved to the right as indicated by the arrow in the figure. On the other hand, the sliding member 58 extends from the central portion of the fixed rod 58 in the upward direction indicated by the arrow in the figure,
Along with this, the nozzle 50 turns while drawing a locus indicated by reference numeral b, and the sealer is discharged from the nozzle 50 along the locus b.

Then, the nozzle 50 discharges the sealer while moving toward the end point corresponding to the start point of the application point P on the surface of the work W, and the sealer is applied in an annular shape along the application point P of the work W.

As described above, since the nozzle device 2 is rotatable while being held by the first holding portion 54 and the second holding portion 56, the rotary shaft 48 of the drive motor 49 directly holds the nozzle device 2. It is possible to pivotally move the connecting shaft 62 without doing so. Therefore, the load on the drive motor 49 is reduced, and the nozzle device 2 is swung with a relatively small driving force without being affected by the weight of the hoses 51, 52 connected to the nozzle device 2 and the nozzle device 2. You can

(Effects of the Invention) As is apparent from the above, according to the present invention, the nozzle device is configured to move in the horizontal linear direction by the first holding part and the second holding part orthogonal to the moving direction. It can be held in the fixed portion in a freely rotatable state by the movement of the portion in the horizontal direction. Further, since the first holding portion and the second holding portion rotatably hold the nozzle device, the connecting shaft shifts the axial center of the rotation shaft of the drive motor in parallel. The nozzle device can be swiveled horizontally in the horizontal direction.

As described above, since the weight of the nozzle device is supported by the fixing portion, the drive motor for driving the nozzle device to rotate is a relatively small driving force without being affected by the weight of the nozzle device. The nozzle device can be swiveled.

Therefore, according to the present invention, for example, even if a hose or the like for supplying a high-viscosity material is connected to the nozzle device, the load on the drive motor due to the connection of those hoses is reduced, so that the nozzle device can be swung smoothly. It is possible to provide a high-viscosity material coating device that can be driven.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of the present embodiment, FIGS. 2 and 3 are enlarged explanatory views of the main part, and FIGS. 4 (a) to 4 (d) are operation explanatory views of the present embodiment. W …… Workpiece 1 …… High viscosity material coating device 2 …… Nozzle device 47 …… Fixed part 48 …… Rotary shaft 49 …… Drive motor 50 …… Nozzle 54 …… First holding part 56 …… Second holding part 62 ...... Connecting shaft

Claims (1)

[Scope of utility model registration request] 1. A high-viscosity material coating device for connecting a high-viscosity material to a workpiece by rotating a nozzle device for ejecting the high-viscosity material to a rotary shaft of a drive motor so as to rotate the nozzle device. A first holding portion that linearly moves in the horizontal direction, and a first holding portion that moves linearly in the horizontal direction orthogonal to the moving direction of the nozzle device held by the first holding portion. The second holding portion held by the second holding portion, the fixing portion fixing the second holding portion, and the turning radius of the nozzle in the horizontal direction from the axis of the vertical rotation shaft of the drive motor fixed to the fixing portion. One end is connected to the rotating shaft at a position displaced in size, and the other end is connected to the first shaft.
A high-viscosity material coating apparatus, comprising: a connecting shaft that is rotatably connected to the nozzle device at a position perpendicular to the moving direction of the nozzle device that is moved by the holding unit.