JP2001104853A - Viscous material applying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically coat a part having a complicated shape or wide surface area. SOLUTION: A viscous material is stuck to the outer peripheral surface of a feed roller 48 by dipping a part of the feed roller 48 in the viscous material. The viscous material stuck to the feed roller 48 is received by a coating structure part 58 and the received viscous material is stuck to a work by the coating structure part 58. Then automatic coating work is facilitated even in the case of applying on a special shaped part such as the peripheral part of the opening of the work or on a part having wide surface area.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a viscous material applying apparatus for automatically applying a viscous material such as grease to a work.

[0002]

2. Description of the Related Art Conventionally, in manufacturing a mini disk player (MD player) or the like, an operation of applying grease to a cam groove 12 of a shield case 10 as illustrated in FIG. 9 has been performed.

The cam groove 12 is formed as a peripheral portion of an opening formed in a predetermined shape on a side plate of the shield case 10. Therefore, the operation of applying the grease is performed by a worker using a cam groove 1 formed with grease as an opening peripheral portion with a brush or a brush.
2 by hand.

[0004]

The above-described manual grease application requires a lot of time and labor. For example, automatic grease is applied to a work by applying grease to a work by taking out grease from a generally used thin tubular needle. When the grease application operation is to be performed, the cam groove 12 is formed as the peripheral portion of the opening, and the application operation is performed while moving the tip of the needle along the peripheral portion of the opening using a work robot. There is a need.

[0005] In addition, when the area of the work to which grease is applied is large, using a single application apparatus for applying grease from the needle to apply the grease to the work requires a long working time. The operation is performed by operating the work robot.

[0006] As described above, when a large number of coating apparatuses and work robots are used to automate the coating operation, the cost of equipment is increased, and the work of setting the operation control of the work robot is troublesome. There is.

When grease is applied from a needle to a work by using a coating apparatus, grease adheres to the tip of the needle, and the grease adheres to the work from the end of the needle later, and the grease is applied to the work. Is not uniform.

[0008] In consideration of the above fact, the present invention can easily perform the operation of automatically applying even when applying to a specially shaped portion such as the periphery of an opening or when applying to a large area portion. It is an object of the present invention to newly provide a viscous body application device which can be configured to apply a body uniformly.

[0009]

According to a first aspect of the present invention, there is provided a viscous body coating apparatus, wherein a viscous body is stored in a storage tank for storing the viscous body, and the viscous body is partially immersed in the viscous body stored in the storage tank. A supply roller that rotates so as to adhere the viscous material to the outer peripheral surface, and a coating roller that rolls to receive the viscous material adhered to the outer peripheral surface when the supply roller rotates, and adheres the received viscous material to the workpiece. And a mechanism section.

[0010] With the above-described configuration, since the coating mechanism is applied so as to abut on a specially shaped portion such as the peripheral portion of the opening or a portion with a large area, the operation of automatically applying the coating is performed. Easy to do.

According to a second aspect of the present invention, in the viscous body coating apparatus according to the first aspect, an agitating roller that is rotationally driven while being buried in the viscous body is mounted inside the storage tank. It is characterized by.

With the above-described structure, the viscous material inside the storage tank is agitated by the rotational driving of the stirring roller, so that the components of the viscous substance in the storage tank can be prevented from being separated.

According to a third aspect of the present invention, in the viscous body coating apparatus according to the first or second aspect, the viscous body attached to the outer peripheral surface and moved by the rotation of the supply roller is scraped off so as to form an appropriate layer. A quantifying scraper is mounted.

With the above-described structure, the scraper scrapes off the viscous material on the outer peripheral surface of the supply roller so as to form an appropriate amount of a layer and quantifies the scraper. Therefore, the scraper is quantified and adhered to the supply roller. The viscous body can be uniformly applied to the work by receiving the viscous body by the application mechanism and attaching the viscous body to the work.

According to a fourth aspect of the present invention, there is provided the viscous body coating apparatus according to any one of the first to third aspects, wherein the coating mechanism is configured to contact the workpiece with a transfer pulley that rolls on the supply roller. It is characterized by being constituted by an endless belt wound around an objective pulley.

[0016] With the above configuration, the viscous material adhered to the outer peripheral surface of the supply roller is delivered in a layered manner on the endless belt and is delivered to the endless belt, so that the endless belt is pressed against the work. By virtue of the rubbing, the viscous body can be properly adhered to the work.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a viscous body coating apparatus according to the present invention will be described below with reference to FIGS. In the overall perspective view of FIG. 1, the shield case 22 in the mini-disc player is
The main part of the apparatus for applying grease to the cam groove 24 formed on the side portion of FIG.

The shield case 22 has a pair of cam grooves 24 formed on the left and right sides thereof. This cam groove 2
Grease 4 is applied to the lubrication member 4 for lubrication when it comes into sliding contact with a follower (not shown).

As shown in FIG. 1, the shield case 22 as a work is placed on a work table 26 which can be moved up and down during a work process of applying grease to the cam groove 24.

On both sides of the work table 26, a pair of right and left viscous body coating devices 20 are arranged.

The viscous body coating device main body 20 is formed in a substantially rectangular box shape as a whole, and is configured so that a portion to be coated with grease protrudes from one side of an upper end thereof.

As shown in FIGS. 2 and 3, a grease storage tank 28 is formed inside the viscous body coating device main body 20. A stirring roller 30 is disposed inside the grease storage tank 28.

The stirring roller 30 is formed in a cylindrical shape having a large diameter, and shaft rods 32 extending from both ends thereof are provided with bearings 34 which are respectively bored on opposing side surfaces of the grease storage tank 28.
Are supported in a state of being respectively penetrated by the shaft holes.

A gear 36 for interlocking is fixed to one end of the shaft rod 32, and an extension thereof is connected to an output shaft 40 of a drive motor 38. A cap 42 is fitted to the other end of the shaft rod 32.

Inside the grease storage tank 28, a bottom member 44 forming an arc-shaped bottom surface at a predetermined interval from the outer peripheral surface of the stirring roller 30 is installed on the bottom side.

Further, inside the grease storage tank 28, the movement of the grease is adjusted in a shape protruding like a mountain at a predetermined position on the side wall provided with a portion to which grease is applied, which is obliquely above the stirring roller 30 in FIG. Guide member 46 is provided.

Inside the grease storage tank 28, a supply roller 48 is disposed at a predetermined position between the guide member 46 and a portion to which grease is applied. This supply roller 48 is
Shaft 5 formed in a small diameter cylindrical shape and extending from both ends
Numerals 0 are pivotally supported in such a manner as to pass through the shaft holes of the bearing 52 pierced on the opposing side surfaces of the grease storage tank 28, respectively.

The supply roller 48 thus pivotally supported is
The outer peripheral surface is arranged at a predetermined interval from the outer peripheral surface of the stirring roller 30. An interlocking gear 54 is fixed to one end of the shaft 50 of the supply roller 48, and a cap 56 is fitted to the other end.

The gear 54 is connected to the drive motor 38 described above.
Are connected to the gear 36 for interlocking with the output shaft 40 to transmit the rotational force.

The grease application portion adjacent to the supply roller 48 is provided with a belt conveyor mechanism 5 as an application mechanism.
8 is attached. This belt conveyor mechanism 58
An endless belt 64 is stretched between a transfer pulley 60 and an objective pulley 62.

In the belt conveyor mechanism 58, a groove 66 for fitting the endless belt 64 is formed in the center of the outer peripheral surface of the transfer pulley 60. The groove 66 has the same width as the endless belt 64 and has the same depth as the thickness of the endless belt 64.

Accordingly, when the endless belt 64 is wound around the groove 66 of the transfer pulley 60, the large-diameter outer peripheral surface of the transfer pulley 60 and the outer peripheral surface of the endless belt 64 are flush with each other. A gap is not formed between the endless belt 64 and the side portion of the endless belt 64 in the width direction. For this reason, the transfer pulley 60 around the endless belt 64 in the belt conveyor mechanism 58 is lightly rolled so as not to form a gap on the outer peripheral surface of the supply roller 48.

The transfer pulley 60 is connected to the supply roller 4.
8 is formed in the shape of a cylinder having the same diameter as that of the shaft 8, and the shaft rods 76 extending from both ends of the shaft 78 are respectively pierced through shaft holes of bearings 78 pierced on opposing side surfaces of the grease storage tank 28. Have been.

The shaft 7 of the pulley 60 for transfer is provided.
6, an interlocking gear 82 is fixed to one end, and a cap 80 is fitted to the other end.

The gear 82 is connected to the above-described gear 54 via an intermediate gear 84 provided for reversing the rotation direction. Thus, the rotational force of the drive motor 38 is transmitted from the output shaft 40 to the interlocking gear 36, transmitted from the interlocking gear 36 to the gear 54, and further transmitted to the viscous body coating apparatus main body 20. A gear train transmitted to the interlocking gear 82 through the gear train is formed.

By the operation of this gear train, as shown in FIG.
The supply roller 48 rotates in the direction of arrow C integrally with the gear 54, and the pulley 60 for transfer integrally with the gear 82 for interlocking moves in the direction of arrow D in the same rotation direction as the supply roller 48. To rotate.

When the transfer pulley 60 rotates,
The belt conveyor mechanism 58 is also linked, and the endless belt 64 moves in the direction of arrow E.

The objective pulley 62 of the belt conveyor mechanism 58 is formed in a small-diameter cylindrical shape, and shaft rods 68 extending from both ends thereof are projected as a part of the grease storage tank 28 where the grease is applied. It is respectively supported by the shaft holes of both side pieces. That is, the objective pulley 62 is pivotally supported in a state protruding from the tip of the portion to which grease is applied. It should be noted that the diameter of the objective pulley 62 may of course be large in accordance with the grease application area or application amount on the work.

As shown in FIG. 2, inside the grease storage tank 28, a scraper 70 as a quantifying means facing the supply roller 48 is provided at the top of the side wall provided with the grease application portion. I have.

The scraper 70 is formed in a long plate shape, and its free end is disposed with a predetermined space from the outer peripheral surface of the supply roller 48. This scraper 7
Since the distance between 0 and the supply roller 48 sets the thickness of grease placed on the supply roller 48, the distance may be appropriately changed and adjusted according to the amount of grease to be applied to the work.

As shown in FIG. 2 and FIG. 3, the viscous substance coating apparatus main body 20 is mounted such that a portion of the grease storage tank 28 is slidable with respect to the machine base, and is moved by a moving operation mechanism 72 in the direction of arrow A in FIG. It is configured to be able to reciprocate.

The moving operation mechanism 72 is configured to operate, for example, an electric motor to extend and retract the rod 74, and the fixed end of the rod 74 is fixed to the lower portion of the grease storage tank 28. . Then, the electric motor is driven to extend and retract the rod 74, and the grease storage tank 28 connected to the rod 74 is moved and moved by a predetermined distance in a predetermined direction.

As shown in FIG.
Performs the application operation in a state where the supply roller 48 is filled with grease so that the supply roller 48 is partially immersed in the grease storage tank 28 to a level of sinking the supply roller 48 by about two thirds. The grease is applied to the grease storage tank 28.
When the grease inside the grease is consumed, the worker fills the grease storage tank 28 with grease as appropriate.

As shown in FIGS. 1 and 2, the work table 26 is configured so that the shield case 22 can be disengaged from the table on the upper surface thereof, and the shield case 22 is moved by a lifting mechanism (not shown). It is configured so that it can be moved up and down a required distance in the vertical direction while it is mounted.

Next, the operation and operation of the viscous body coating apparatus according to the present embodiment configured as described above will be described.

In the present viscous body coating apparatus, when performing the coating operation, the drive motor 38 is driven in a state where the grease is filled in the grease storage tank 28 as shown in FIG. Then
The stirring roller 30 is rotated in the direction of arrow B integrally with the shaft rod 32 via the output shaft 40, and the grease in the grease storage tank 28 is stirred, and at the same time, the grease is pressed against the outer peripheral surface of the supply roller 48, and the supply roller The outer peripheral surface of the roller 48 is evenly wet with grease. Further, when the rotational driving force of the drive motor 38 is transmitted to the supply roller 48 and the supply roller 48 is rotated in the direction of arrow C, the outer peripheral surface of the supply roller 48 is located around the outer peripheral surface. The grease moves around with its viscosity. And
Since the grease moving with the rotation of the supply roller 48 is stopped at the scraper 70, a layered layer having a thickness corresponding to the distance between the supply roller 48 and the scraper 70 is formed on the outer peripheral surface of the supply roller 48. Grease will be served.

When the rotational driving force of the driving motor 38 is transmitted to the pulley 60 for transfer and the pulley 60 for transfer is rotated in the direction of arrow D, the endless belt 64 of the belt conveyor mechanism 58 moves in the direction of arrow E. Moving and supply roller 4
The endless belt 64 is rubbed on the outer peripheral surface of the endless belt 8, and the layered grease applied to the supply roller 48 is delivered so as to be applied on the endless belt 64.

In this way, when the grease placed on the endless belt 64 is conveyed to the objective pulley 62 as shown in FIG. 4 by the movement of the endless belt 64, the preparation for applying the grease is completed. Therefore, the drive motor 38 is stopped, and the operation of the belt conveyor mechanism 58 is stopped.

Next, the moving operation mechanism 72 of the viscous body coating apparatus main body 20 is driven, the rod 74 is pulled in, the grease storage tank 28 is moved to the shield case 22 side, and is wound around the objective pulley 62. In a state shown in FIG. 5 in which the grease on the endless belt 64 is pressed against the cam groove 24 of the shield case 22, the drive of the moving operation mechanism 72 is stopped to stop the grease storage tank.

Next, by operating a lifting mechanism (not shown) of the work table 26, the shield case 22 is moved upward by a required distance to obtain the state shown in FIG. In the state shown in FIG. 6, grease is applied to the cam groove 24 of the shield case 22.

Next, the moving operation mechanism 72 of the viscous body coating device main body 20 is driven, the rod 74 is pulled out, and the grease storage tank 28 is moved to be separated from the shield case 22.
In a standby state in which the belt conveyor mechanism 58 is separated from the cam groove 24 of the shield case 22, the drive of the moving operation mechanism 72 is stopped to stop the grease storage tank 28, and a series of operations for applying grease is completed.

Next, when a series of operations for applying grease is performed, the above operation may be repeated, and the drive motor 38 is driven to move the endless belt 64 to the objective pulley 62 of the belt conveyor mechanism 58. After the loaded grease is transported, the grease storage tank 28 is moved and the grease is applied to the cam groove 24 of the shield case 22 in the same manner as described above.

As shown in FIG. 2, the grease remaining on the endless belt 64 after the above-described operation of applying the grease is returned to the supply roller 48 together with the endless belt 64, and is supplied to the supply roller 48. The grease is washed away and returned to the grease stored in the grease storage tank 28.

The viscous body coating apparatus main body 20 performs the grease coating operation while partially circulating the grease stored in the grease storage tank 28 by the above-described operation. That is, as shown in the flowchart of FIG. 8, the grease filled in the grease storage tank 28 is stirred by the rotation of the stirring roller 30 buried in the grease (in this manner, the stirring roller 30 rotates the grease). If the stirring is performed, the grease stored in the grease storage tank 28 can be prevented from being separated).

The grease stirred in the grease storage tank 28 is scraped by a scraper 70 to an appropriate amount, quantified, and adhered in a layer on the outer peripheral surface of the supply roller 48.
The grease adhered in a layer on the outer peripheral surface of the supply roller 48 is transported by the endless belt 64 and is
Is applied to the cam groove 24 portion of The grease remaining on the endless belt 64 at this time is
And collected in the grease storage tank 28.

Therefore, according to the viscous body coating apparatus main body 20, grease not used at the time of coating is collected and used again for coating, so that grease can be used without waste.

In the above-described embodiment, the configuration in which the belt conveyor mechanism 58 is mounted as the coating mechanism in the viscous body coating apparatus main body 20 has been described. However, in the present invention, only the pulley 60 for transfer is used as the coating mechanism. May be. In this case, the grease quantified directly from the supply roller 48 is applied in a layer on the outer peripheral surface of the pulley 60 for transfer, and the pulley 60 for transfer is brought into contact with the application portion of the work. And apply.

The application mechanism is not limited to the above-described configuration, but may be any configuration that can receive the quantified grease and attach it to the application section of the work. Of course, it is of course possible to use various conveyor mechanisms or the like. Further, the viscous material applied by the viscous material application device is not limited to grease, but may be a fluid having viscosity such as paint.

[0059]

According to the viscous body coating apparatus of the present invention, even when the coating is performed on a specially shaped portion such as the periphery of an opening or on a large area, the operation of automatically applying the coating can be easily performed. This has the effect that the viscous material can be uniformly applied.

[Brief description of the drawings]

FIG. 1 is an overall schematic perspective view showing a viscous body coating apparatus according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional front view showing a main part of the viscous body coating apparatus according to the embodiment of the present invention, and showing a partial cross section.

FIG. 3 is a partial cross-sectional side view showing a main part of the viscous body coating apparatus according to the embodiment of the present invention, and showing a partial cross section.

FIG. 4 is an enlarged front view of a main part showing a state immediately before applying grease to an application section of a work by an application mechanism section in the viscous body application apparatus according to the embodiment of the present invention.

FIG. 5 is a main part showing a state in which a part of the application mechanism is brought into contact with the work in order to apply grease to the application part of the work in the application mechanism in the viscous body application apparatus according to the embodiment of the present invention. It is an enlarged front view.

FIG. 6 is a schematic view of a viscous body coating apparatus according to an embodiment of the present invention, in which a coating mechanism is applied to apply grease to an application section of a work; It is a principal part enlarged front view which shows the state which moved.

FIG. 7 is an enlarged front view of a main part showing a state immediately after the application mechanism of the viscous body application apparatus according to the embodiment of the present invention has applied grease to the application section of the work.

FIG. 8 is a flowchart showing an operation when grease is applied by the viscous material applying apparatus according to the embodiment of the present invention.

FIG. 9 is a side view showing a shield case as an example of a work to which grease is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 20 Viscous body application device main body 22 Shield case 24 Cam groove 26 Work table 28 Grease storage tank 30 Stirring roller 44 Bottom member 46 Guide member 48 Supply roller 58 Belt conveyor mechanism 60 Pulley 62 Pulley 64 Endless belt 66 Groove part 68 Shaft bar 70 Scraper

Claims (4)

[Claims] 1. A storage tank for storing a viscous body, a supply roller disposed so as to be partially immersed in the viscous body stored in the storage tank, and rotated to adhere the viscous body to an outer peripheral surface; A viscous body coating device, comprising: a coating mechanism that rolls to receive the viscous body attached to the outer peripheral surface when the supply roller rotates, and applies the received viscous body to a work. 2. The viscous body coating apparatus according to claim 1, wherein a stirring roller rotatably driven while being buried in the viscous body is mounted inside the storage tank. 3. A scraper for quantifying a viscous body that adheres and moves on an outer peripheral surface by rotation of the supply roller so as to form an appropriate amount of layer and is quantified. Item 3. A viscous material coating device according to Item 2. 4. An endless belt wound around a transfer pulley for rolling contact with the supply roller and an objective pulley for contacting the work with the supply roller. The viscous body coating device according to any one of claims 1 to 3, characterized in that: