JPS632134Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a viscous material supply device for applying a viscous material such as grease to a required shape of a shaft, hole, etc. by a transfer method.

<Prior art and its problems> Conventionally, this type of coating device has mainly used a discharging method using a dispenser, which is an effective method for liquids with low viscosity. however,
If a highly viscous liquid, such as grease, contains air, the grease may not be discharged if used as is, so a defoaming device is required. Therefore, it is extremely difficult to completely defoamer. Therefore, it is also necessary to inspect whether the grease has been applied to the required locations. In addition, when dispensing from multiple points at the same time, controlling the dispensing amount for each, and applying uniformly to the required shape of the shaft or hole requires movement with multiple degrees of freedom, which has the disadvantage of complicating the equipment and control. It was hot.

<Purpose of the invention> The present invention eliminates the drawbacks of the conventional example described above, and provides a device that uniformly and reliably supplies a viscous material such as grease to a member that is coated with a viscous material such as a shaft or a hole in a required shape by transfer. The purpose is to provide.

<Structure of the invention> The invention is based on a transfer plate that supplies a viscous material to a transfer pin that applies the viscous material to a product by transfer.
A pair of rollers for squeezing the viscous material are rotatably and movably disposed at intervals in the front and back, and when the pair of rollers is moved back and forth, the pair of rollers rotate in opposite directions on the outward path. The clutch is characterized by having a one-way clutch structure in which the rear roller rotates in the same direction as the forward path on the return trip, and the other front roller does not rotate.

<Description of Embodiments> Embodiments of the present invention will be described with reference to the drawings.

1 to 3 show an embodiment of an apparatus for supplying grease to a transfer pin of a transfer finger, which is a member for applying grease to an object to be coated.

In the figure, reference numeral 1 denotes a base, and a transfer plate 2 for supplying grease to transfer pins of a transfer finger 30, which will be described later, is fixed on the upper surface of the base. Guide grooves 2a and 2b are formed along both side edges of the transfer plate 2, and a lower rack 3 is attached to one side edge. On the other hand, the transfer plate 2 is attached to the base 1 at a distance from the upper surface thereof.
An upper rack 4 is attached along the other side edge of the rack. Reference numerals 5 and 6 denote side plates that slide on the transfer plate 2 while being guided by guide grooves 2a and 2b, respectively, between which rollers 7 and 8 that contact the transfer plate 2 are mounted with bearings 9 at intervals in the front and back, respectively. , and is rotatably supported by a packing 11, a bearing 10, and a packing 12. Further, the roller 7 is connected to a one-way clutch 13 fixed to the side plate 5 at one end of its shaft, and a gear 1 having a one-way clutch 15 at the other end.
4 are connected, the gear 14 meshes with the upper rack 4, and in the forward movement (forward direction) the one-way clutches 13, 15 rotate the roller 7 clockwise as shown in FIG. 3a. On the return path (reverse direction), as shown in FIG. 3b, the one-way clutch 13 is configured to work so as not to rotate the roller 7. The roller 8 is provided with one-way clutches 1 each having no slip at its both shaft ends.
7 and a gear 16' having a non-slip one-way clutch 17' are coupled, the gear 16 meshing with the lower rack 3 and the gear 16' meshing with the upper rack 4. ,
On the outward path (forward direction), the one-way clutch 17 acts to rotate the roller 8 counterclockwise as shown in FIG. The structure is such that it rotates.

Furthermore, a cover 18 is fixed between the side plates 5 and 6 to cover the rollers 7 and 8 while keeping a certain gap therebetween, and the cover 18 has a grease insertion port 18a in the center thereof and The side plate 5
A cylinder 19 is connected to the cylinder 19 for sliding the gaskets 1 and 6 in the front and back direction, and rubber sheets 20 and 21 are attached to the recesses provided on the inner surfaces of the side plates 5 and 6, respectively.
Together with 1 and 12, it serves to prevent grease from leaking toward both side plates.

The front part of the transfer plate 2 has swing pins 22, 22' and a hole 23 for supplying grease to the transfer pin of the transfer finger 30, and the swing pins 22, 22' are It is pivotably supported so that it can be folded down, and when it is folded horizontally as shown in FIG. 3A, its top surface is slightly lower than the top surface of the transfer plate 2, forming a stepped portion. Note that G is grease.

On the other hand, FIG. 4 is a perspective view of an embodiment of a transfer finger for applying grease to a desired product by transfer. The transfer finger 30 is attached to and operated by a robot device 29 or the like, and slides in the y direction and z direction in order to apply grease to an object to be coated.
Semi-cylindrical transfer pins 31, 3 that rotate around the axis
1' and a cylindrical transfer pin 32, the transfer pins 31 and 31' are supplied with a required amount of grease from the swing pins 22 and 22' of the transfer plate 2 of the grease supply device, respectively, and the transfer pins Similarly, the grease 32 has a structure in which the required amount of grease is supplied from the hole 23 and can be applied to multiple points at the same time.

Next, the operation of this embodiment having the above configuration will be explained.

First, the side plates 5, 6 and cover 1 shown in FIG.
8 is in the retracted position, grease G is placed on the transfer plate 2 between the rollers 7 and 8 through the insertion opening 18a of the cover 18. Therefore, while moving the cylinder 19 forward, the swing pins 22, 2
2' to the horizontal position. On the outward path of the cylinder 19, the grease G is applied to the roller 8 as shown in FIG. 3a.
It's leaning to the side. At this time, since the roller 8 is rotating in the counterclockwise direction of the arrow, even highly viscous grease that cannot be separated from the roller 8 by its own weight is pressed onto the transfer plate 2 and squeezed. Therefore, when the roller 8 passes over the swing pins 22, 22' and the hole 23,
The step portion between the upper surface of the transfer plate 2 and the upper surface of the swing pins 22, 22' and the hole portion 23 are filled with grease G. Because of its viscosity, the grease on the transfer plate 2 after the roller 8 has passed through the third
As shown in Figure a, it becomes fluffy.

Next, when the cylinder 19 is moved back as shown in FIG. 3b, the roller 7 does not rotate during this return trip, so the roller 7 squeezes the grease G on the transfer plate 2 to collect excess grease. Here, the reason why the roller 8 is rotated in the counterclockwise direction of the arrow is to drop the grease G attached to the roller 8 onto the transfer plate 2 and squeeze it with the roller 7 when moving from the forward path to the return path.

When the rollers 7 and 8 are returned to their original positions by the cylinder 19, the grease G is applied as shown in FIG. 3b.
The swing pins 22, 22' to which they are attached are placed in an upright position.

Note that on the outward path of the cylinder 19, the roller 7
The reason for rotating clockwise as shown in FIG. 3A is to separate the grease G collected by the roller 7 on the return trip from the roller 7 and place it on the transfer plate 2 as described above.

After the above operations are completed, the robot device 29 transfers the transfer pins 31, 31' of the transfer finger 30.
Grease is transferred to each transfer pin by bringing the inner surfaces of the transfer pins 32 into contact with the grease G attached to the swing pins 22 and 22', respectively, and by similarly inserting the end surfaces of the transfer pins 32 into the external holes 23.

Therefore, FIG. 5 shows an example of use when applying grease attached to the inner surface of the transfer pin 31 to the spindle.
The spindle 40 to be greased in Fig. 5a
Set the transfer pin 31 close to the center, slide the transfer pin 31 from this state, bring the support shaft 40 into contact with the inner surface of the transfer pin 31 as shown in FIG. 5b, and move the transfer pin 31 around the support shaft 40. Grease can be applied evenly by rotating it.

Fig. 6 shows an example of use when applying grease attached to the end face of the transfer pin 32 to the upper surface of the cylindrical part. Transfer pin 32
is set, and then the transfer pin 32 is lowered and brought into contact with the upper surface of the cylindrical portion 41 as shown in FIG. 6b, thereby applying grease to that surface.

In the grease supply device in the above embodiment, the rollers 7 and 8 were rotated in a predetermined direction using a gear and a rack having a one-way clutch, but it is also possible to directly rotate the rollers 7 and 8 in a predetermined direction using a motor or the like. It may be a structure.

Furthermore, although this embodiment is an apparatus for squeezing and supplying grease as a viscous material, it goes without saying that it can be used not only for applying grease but also for applying cream solder and the like.

In addition, the transfer pin 3 of the transfer finger 30
For the first class, as shown in FIG. 7, it is divided into a tip part 31a to which grease is attached and a main part 31b,
They are pivoted to each other by pins 33 and have springs 34 on both sides.
If the equalizer function is provided by multiplying and holding the shaft so that it is normally in a straight line, it is also possible to adapt to misalignment of the spindle to be greased.

<Effects of the invention> As explained above, the present invention has the effect that the viscous material can be easily, reliably, and uniformly supplied to the transfer pin that has the same shape as the object to be coated by the transfer method. There is.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of essential parts of an embodiment of the viscous material supply device according to the present invention, FIG. 2 is a cross-sectional view of FIG. 1, and FIG.
The figure is an explanatory view of the squeeze operation, where a shows the forward path and b shows the return path, FIG. 4 is a schematic perspective view of the transfer finger, and FIGS. 5 a, b and 6 a, b are the 4 FIG. 7 shows a modification of the transfer pin of the transfer finger in FIG. 4. 1...Base, 2...Transfer plate, 3...Lower rack, 4...Upper rack, 5, 6...Side plate,
7, 8...Roller, 9,10...Bearing, 1
1,12...Patsukin, 13,15,17,1
7'...One-way clutch, 14, 16, 16'...
Gear, 18...Cover, 19...Cylinder, 2
0, 21... Rubber sheet, 22, 22'... Swing pin, 23... Figure hole, 29... Robot device,
30...Transfer finger, 31, 31', 32...
...Transfer pin, G...grease.

Claims (1)

[Claims for Utility Model Registration] 1. A pair of rollers for squeezing the viscous material are rotated and moved at a distance in front and back on a transfer plate that supplies the viscous material to a transfer pin that applies the viscous material to a product by transfer. When the pair of rollers is reciprocated, the pair of rollers rotates in opposite directions on the forward path, the rear roller rotates in the same direction as the forward path on the return path, and the second roller rotates in the same direction as the forward path. This viscous material supply device has a one-way clutch structure in which one front roller does not rotate. 2. Utility model registration claim 1, in which a hole shaped according to the amount necessary for applying a viscous material to a product is provided on the transfer plate, and the viscous material is supplied to the transfer pin. Viscous material supply device. 3. The viscous material supply device according to claim 1, wherein the transfer plate has a swing pin supported so as to have a level difference corresponding to the amount of coating from the upper surface of the transfer plate. 4 A pair of rollers is provided with a cover to cover them,
A viscous material supply device according to claim 1, which prevents the viscous material from escaping. 5 Utility model registration in which a viscous substance is supplied by inserting a transfer pin supported by a transfer finger and having a shape matching the shape of a hole in the transfer plate into a hole in the transfer plate. A viscous material supply device according to claim 2. 6. The viscous material supplying device according to claim 3, wherein the viscous material is supplied by bringing a rotatable transfer pin supported by a transfer finger into contact with a swing pin of a transfer plate. 7 Utility model registration claim No. 6 in which a viscous material is supplied to a rotatable transfer pin supported by a transfer finger and having an equalizing mechanism.
The viscous material supply device described in .