JPH07155658A - Painting apparatus and optimum painting cartridge for apparatus thereof - Google Patents

Abstract

PURPOSE:To apply an object painting agent uniformly to a specified area to be painted by rotating a work while holding the work at a set position in the condition the outer circumference of the work having circular cross-section is made rotatable and providing a painting head to paint an object painting agent to a specified position of the work in the longitudinal direction. CONSTITUTION:A rotary shaft 1 is mounted on a supporting part 20 and the rotary shaft 1 is so supported by the supporting part 20 as to rotate freely. In that condition, when a motor of a rotation driving system 30 is driven, a first and a second rotary gears 34, 36 are driven to rotate respectively in the same direction through a worm gear 33 and a transmission gear 35. As a result, driving rollers 371, 382 which have rolling contact with the rotary shaft 1 are driven to rotate. Due to the rotating operation, a painting head 514 having rolling contact with the rotary shaft 1 rotates following the rotation and consequently, an object painting agent stored in a storage part of a painting cartridge 51 is applied uniformly to a specified site of the rotary shaft 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating device and a coating cartridge most suitable for the coating device. More specifically, it is suitable for coating a gel or liquid grease or other coating agent on the peripheral surface of a rotating shaft or the like. Coating device and coating cartridge most suitable for the same.

[0002]

2. Description of the Related Art When applying a material to be coated on the outer peripheral surface of a work having a circular cross section such as a rotating shaft or a pipe, it is necessary to simply apply the material to be coated by hand. I can't. Therefore, conventionally, a jig or device has been developed for uniformly applying the coating material onto the surface of the work.

For example, Japanese Examined Patent Publication (Kokoku) No. 4-54054 proposes an applicator capable of applying a coating material uniformly by hand. This applicator is integrally provided with a pair of claws and a container for containing the coating material, and the end face of a hollow work such as a pipe is sandwiched between the pair of claws facing each other to form the container. By squeezing by hand, while supplying the applied material to the claw portion facing the outer peripheral surface of the work, by rotating the work while guiding the work by the claw portion on the inner peripheral side,
A uniform application is aimed at.

Further, Japanese Utility Model Publication No. 63-2136 discloses an apparatus for applying a coating material to the outer periphery of a long work such as an electric wire. This apparatus is provided with a transporting unit that transports the work in the longitudinal direction, and an application head that is in sliding contact with the outer peripheral surface of the transported work. Then, by supplying the coating object to the coating head, the coating object is uniformly coated on the outer peripheral surface of the work.

[0005]

[Patent Document 1] Japanese Patent Publication No. 4-540
The applicator of No. 54 has a problem that the application work cannot be performed on a solid work because the end face of the work needs to be sandwiched between the pair of claw portions. Further, since the work is sandwiched between the pair of claws and the work is guided by the claws on the inner peripheral side, there is a problem that the application site is limited to the insertable end of the claws.

In addition, since it is necessary to squeeze the container by hand to supply the coating material, it is difficult to supply the coating material to the nail portion in a fixed amount, and it is difficult to make the coating surface uniform. . On the other hand, in the apparatus of Japanese Utility Model Publication No. 63-2136, since it is necessary to convey a long work in the longitudinal direction, it is necessary to provide a long conveyance path in the longitudinal direction of the work, which requires a large equipment space. there were.
In addition, since the work is moved in the longitudinal direction to apply the coating material, it is difficult to specify the application range within a predetermined range, and partial application of the support shaft or the like has not been possible.

The present invention has been made in view of the above problems, and it is possible to perform the coating step regardless of whether the cross-sectional shape of the work is solid or hollow, and moreover, within the specified coating range. It is possible to apply the applied material uniformly,
An object of the present invention is to provide a coating apparatus having good workability, economy, and product quality, and a coating cartridge most suitable for the coating apparatus.

[0008]

In order to solve the above-mentioned problems, the coating apparatus according to claim 1 of the present invention is a holding means for holding the outer peripheral surface of a work having a circular cross section in a rotatably fixed position. And a rotation driving means for rotating the carried work, and an application head for applying the coating object to a specific position in the longitudinal direction of the rotated work.

Further, in the coating apparatus according to the second aspect of the present invention, the supporting means for supporting the outer peripheral surface of the work having the circular cross section in a fixed state in a rotatable state, the rotation driving means for rotating the carried work, and the rotating means. It is characterized in that it is provided with a coating head for coating the coating target material on a specific position in the longitudinal direction of the work, and a displacement means for displacing the coating head in a direction facing the work.

Further, according to a third aspect of the present invention, in the coating apparatus according to the first or second aspect, a plurality of the coating heads are provided corresponding to a portion to be coated with the coating agent. In addition, the coating cartridge according to claim 4 applies the coating agent to the work by rolling-contacting the accommodating portion that stores the coating agent to be applied to the work, and the accommodated coating agent and the work. It is characterized by having a coating head integrally.

[0011]

According to the first aspect of the present invention, the work is rotatably held in the fixed position by the holding means and is rotated by the rotation driving means. Further, by bringing the coating head into contact with a specific position in the longitudinal direction of the rotated work, the coating material can be uniformly coated.

Further, according to the second aspect of the invention, since the coating head is configured to be displaceable in the direction opposite to the work, the work having different diameters can be carried by the same carrying means to carry out the coating process. It will be possible. Further, in the configuration according to the third aspect, since the plurality of coating heads are provided corresponding to the site of the work to be coated, the coating process at a plurality of locations can be performed at one time.

In addition, in the structure according to the fourth aspect, since the coating head and the supply section for supplying the coating material to the coating head are integrally provided, the coating head and the coating material which are consumables are replaced. Will be easier.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. FIG. 1 is an external perspective view of a coating apparatus according to an embodiment of the present invention, and FIG. 2 is an external perspective view showing a state in which a rotary shaft as a work is attached to the coating apparatus. With reference to these drawings, the coating apparatus of this embodiment includes a rectangular main body 11. The main body 11 is
For example, it is a hollow body made of resin, and on the upper surface 12 thereof, a pair of supporting members 20 serving as a carrying unit, which face each other in the longitudinal direction of the main body 11, and a rotation driving unit arranged between the supporting members 20 are provided. The rotation drive mechanism 30, a pair of work placement members 40 provided for supplying the rotation shaft 1 to the support member 20, and arranged between the rotation drive mechanism 30 and each support member 20, and each support member. Coating mechanism 5 disposed on both sides of 20
0 and 0 are provided.

Referring to FIG. 2, the rotary shaft 1 of this embodiment is
The roller 3 is fixed to a predetermined portion of the shaft body 2,
It is used as a sheet conveying member of a copying machine.
As will be described later, the coating apparatus of this embodiment has a plurality of types of rotary shafts 1 (for example, the shaft body 2 having a diameter of 6 to 12 mm).
It is configured to correspond to. 3A and 3B are schematic views showing the details of the support member 20 and the work placement member 40, FIG. 3A is a schematic side view, and FIG. 3B is a schematic front view.

Referring to FIG. 1, the support member 20 is embodied by an upright portion 21 provided upright on the main body 11. A recess 22 is formed at the top of the standing portion 21. The recess 22 is for mounting the shaft body 2 of the rotary shaft 1 so as to be disengageable in the radial direction, and is formed in a predetermined shape, as will be described later. Next, the workpiece mounting member 40 is a sheet metal integrally provided with a base end portion 41 that is erected on the main body 11 and a mounting portion 42 that extends upward in a posture obliquely inclined from the upper end of the base end portion 41. It is a member.

Then, as shown in FIGS. 3 (A) and 3 (B),
The shaft body 2 of the rotary shaft 1 is mounted on the mounting portion 42 of the work mounting member 40.
By placing the rotary shaft 1 on the upper side, the rotary shaft 1 is conveyed from the upper side to the lower side of the placing portion 42, and is sequentially conveyed into the concave portion 22 of the support member 20. Here, the support member 20
In the top of the rotary shaft 1, the upstream side portion 23 of the rotary shaft 1 in the transport direction is inclined along the mounting portion 42. On the other hand, the downstream portion 24
By projecting above the upstream portion 23,
A contact portion is formed to prevent the rotary shaft 1 from jumping out of the support member 20.

Further, as shown in FIG. 3 (B), the rotating shaft 1
Member 20 and work placement member 40 in the longitudinal direction of the
A space L between which the roller 3 of the rotary shaft 1 can be inserted
Is detracted. Next, the rotary drive mechanism 30 will be described in detail with reference to FIG. This figure is an enlarged perspective view of the rotary drive mechanism 30.

The rotary drive mechanism 30 includes a motor 31 as a drive source, a worm gear 33 as an output gear fixed to a rotary shaft 32 of the motor 31, and a worm gear 33.
And a first rotary gear 34 that meshes with the first rotary gear 34.
And a second rotary gear 36 that meshes with the transmission gear 35. The first and second rotary gears 34 and 36 are fixed to the end portions of drive shafts 37 and 38 that are horizontally arranged side by side. Each drive shaft 37,
Drive rollers 371 and 381 having the same diameter and made of a material having a high friction coefficient such as rubber are fixed to the roller 38. Both drive rollers 371, 381 are for transmitting a rotational drive force in a predetermined direction (clockwise direction in FIG. 4) to the rotary shaft 1 by rolling contact with the shaft body 2 of the rotary shaft 1. .

More specifically, the rotary shaft 1 is supported by the support member 20 such that both drive rollers 371 and 381 are symmetrical with respect to the diameter of the rotary shaft 1 along the vertical direction. The lower side of the rotary shaft 1 is in rolling contact with both drive rollers 371 and 381. Therefore, in this embodiment, as shown in FIG. 5, the rotary shaft 1 can be driven to rotate regardless of the diameter of the rotary shaft 1.

Further, as shown in FIG. 5, the supporting member 2
The 0 recessed portion 22 is provided with circular arc portions 22a and 22b along the circular arcs of the drive rollers 371 and 381.
When the diameter of the rotary shaft 1 and the drive roller 371 changes,
The carrying portion can follow the displacement of the contact portion with 381. As a result, the support member 20 of this embodiment is
Is configured to be able to carry the rotating shaft 1 regardless of the diameter of the rotating shaft 1.

Incidentally, in FIG. 1, FIG. 2 and FIG.
9 is a pair of bearing plates, and by this bearing plate 39,
The drive shafts 37 and 38 are rotatably supported, and the support shaft 35a of the transmission gear 35 is pivotally supported. Next, the coating mechanism 50 of this embodiment will be described in detail with reference to FIGS. 1, 2, and 6.

The coating mechanism 50 comprises a coating cartridge 51 as coating means and a guide portion 52 for detachably guiding the coating cartridge 51. With reference to FIG. 6, which is a detailed view of the coating cartridge 51, the coating cartridge 51 includes a resin casing 511. A housing portion 513 for housing the coating object 512 is housed in the casing 511. Further, the casing 511 is equipped with a coating head 514 that comes into contact with the contained coating object 512. The coating head 514 is a roller-shaped member made of sponge or the like, and a part of the outer peripheral surface thereof is exposed to the outside through an opening 511b formed in the cutout portion 511a of the casing 511. The rotating shaft 514a of the coating head 514 is configured to be displaceable toward the opening 511b, and further, a biasing member 511c configured by a tension coil spring, a leaf spring, or the like.
Is biased toward the opening 511b. Accordingly, in this embodiment, the coating head 514 is connected to the rotary shaft 1
Displacement means for displacing the coating head 514 in the opposite direction is arranged so that the coating head 514 can be displaced to correspond to the rotating shafts 1 having different diameters.

A liquid or gel-like lubricant (grease) is most suitable as the coating agent. An insertion hole 511d is formed in the lower portion of the casing 511,
The guide rod 53 of the guide portion 52 is inserted into the insertion hole 511d.
Is inserted. As shown in FIGS. 1 and 2, the guide rod 53 is arranged parallel to the longitudinal direction of the rotating shaft 1,
Both ends thereof are detachably supported by support pieces 54. Therefore, a predetermined number of coating cartridges 51 can be mounted on one support rod 53. In the embodiment shown in FIGS. 1 and 2, a pair of coating mechanisms 50 are provided on both ends of the rotary shaft 1. In FIG. 1, one coating cartridge 51 is attached to each coating mechanism 50. FIG. 2 shows an example in which two coating cartridges 51 are attached to one coating mechanism 50 (on the left-hand side in FIG. 2).

Although not specifically shown, the coating cartridge 51 is provided with a clamp means (for example, a set screw) for fixing itself to the guide rod 53,
It can be fixed at a predetermined position. This allows
The coating head 514 of the coating cartridge 51 comes into rolling contact with a specific position in the longitudinal direction of the rotated rotary shaft 1.

According to the above structure, as shown in FIG. 2, the rotating shaft 1 is placed on the supporting member 20, and the supporting member 20 rotatably carries the rotating shaft 1. When the motor 31 of the rotary drive mechanism 30 is driven in this state, the first and second rotary gears 34 and 36 of the rotary drive mechanism 30 are rotationally driven in the same direction via the worm gear 33 and the transmission gear 35, respectively. . As a result, the drive rollers 371 and 381 that are in rolling contact with the rotary shaft 1 are rotationally driven. By this rotation drive, the coating head 514 that is in rolling contact with the rotary shaft 1 also rotates, whereby the coating material 512 stored in the storage portion 513 of the coating cartridge 51 is evenly distributed to a specific portion of the rotary shaft 1. Is applied.

As described above, in the structure of this embodiment, the coating material 5 is placed at a specific position in the longitudinal direction of the rotating shaft 1 rotated at a fixed position.
Since 12 can be applied uniformly, the equipment space can be made small, and the size and cost of the device can be reduced accordingly. Further, since the support member 20 rotatably supports the outer peripheral surface of the rotating shaft 1, there is an advantage that the coating step can be performed regardless of whether the rotating shaft 1 has a solid or hollow cross-sectional shape. is there. Further, the coating head 514 moves the coating material 51 to a specific position in the longitudinal direction of the rotary shaft 1.
Since 2 can be applied, it is possible to apply to a portion other than the end portion of the rotary shaft 1 while the application range can be specified at a desired portion of the rotary shaft 1. As a result, as described in the present embodiment, there is an advantage that partial coating of the support shaft and the like becomes possible. Further, after the coating process is completed, the uncoated portion of the rotary shaft 1 may be gripped and the rotary shaft 1 may be removed from the support member 20, which is excellent in workability and does not touch the coated surface.

Further, since the supporting member 20, the rotary drive mechanism 30, and the coating mechanism 50 which can correspond to the rotating shafts 1 having different diameters are adopted, there is an advantage that the apparatus can be versatile. Moreover, the configuration of the present embodiment has an advantage that the work efficiency can be improved because the coating process at a plurality of locations can be performed at one time.

In addition, since the coating cartridge 51 is adopted, the coating head 514 and the coating material 5 which are consumables are used.
As a result of easy replacement of 12, the maintenance work becomes easier and the workability is further improved. Therefore, according to the present embodiment, the coating process can be performed regardless of whether the rotary shaft 1 has a solid or hollow cross-sectional shape, and the coating material 512 is applied to the specified coating range.
Can be applied uniformly, and thus workability, economic efficiency, and product quality can be improved.

Particularly, by adopting the supporting member 20 as in this embodiment, a part of the outer peripheral surface of the opened rotary shaft 1 is supported so that it can be inserted and removed in the radial direction, and the open rotary shaft 1 is By adopting the rotary drive mechanism 30 that rolls into contact with the outer peripheral surface of the portion and transmits the rotary power, the gripping and mounting of the rotary shaft 1 becomes easy, and the workability is improved. Note that the above-described embodiments are merely examples of preferred embodiments of the present invention, and the present invention is not limited to the above-mentioned embodiments. For example, as the support member 20, a structure that can cope with a range of a plurality of diameters is adopted, but if the diameter of the rotary shaft 1 as a work is specified, a concave portion suitable for the diameter is provided. Those having 22 may be adopted. Further, as a configuration for displacing the coating head 514 in the radial direction of the rotating shaft 1, for example,
The shape of the insertion hole 511d (FIG. 6) of the coating cartridge 51 may be formed in an elongated hole shape extending along the radial direction of the rotary shaft 1. Alternatively, the application mechanism 50 itself may be configured to be displaceable with respect to the main body 11.

As described above, it goes without saying that various design changes can be made without departing from the spirit of the present invention.

[0032]

As described above, according to the first aspect of the present invention.
With the configuration described, the coating material can be uniformly applied to a specific position in the longitudinal direction of the workpiece rotated at a fixed position, so that the equipment space can be made small, and the size of the device can be reduced and the cost can be reduced. Can be realized. Further, since the supporting means rotatably supports the outer peripheral surface of the work, there is an advantage that the coating step can be performed regardless of whether the work has a solid or hollow cross section. further,
Since the coating head can coat the material to be coated at a specific position in the longitudinal direction of the work, it can be coated not only on the end of the work but on the other hand, the coating range can be specified at a desired portion. There is an advantage that partial coating can be performed.

Further, according to the second aspect of the present invention, since the workpieces having different diameters can be carried by the same carrying means and the coating step can be carried out, there is an advantage that the apparatus can be versatile. is there. Further, in the configuration according to claim 3, there is an advantage that the work efficiency is improved because the coating process at a plurality of locations can be performed at one time.

In addition, in the structure according to the fourth aspect, it is easy to replace the coating head and the coating material, which are consumable items,
Therefore, there is an advantage that the maintenance work is facilitated and the workability is further improved. Therefore, according to the present invention,
The coating step can be performed regardless of whether the cross-sectional shape of the work is solid or hollow, and moreover, the coating target agent can be uniformly coated in the specified coating range, and thus workability, The remarkable effect that the economical efficiency and the product quality can be improved is exhibited.

[Brief description of drawings]

FIG. 1 is an external perspective view of a coating device according to an embodiment of the present invention,

FIG. 2 is an external perspective view showing a state in which a rotary shaft as a work is attached to the coating apparatus.

3A and 3B are schematic diagrams showing details of the carrying means and the work placing member, wherein FIG. 3A is a schematic side view and FIG. 3B is a schematic front view.

FIG. 4 is an enlarged perspective view showing a rotation driving means.

FIG. 5 is a schematic view showing a relationship between a carrying means and a rotation driving means.

6A and 6B are views showing an application cartridge, FIG. 6A is a schematic sectional view of the application cartridge, and FIG. 6B is a side view of the application cartridge.

[Explanation of symbols]

 20 Support Member (Supporting Means) 30 Rotational Drive Mechanism (Rotation Driving Means) 50 Coating Mechanism 514 Coating Head

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiroyuki Shioji, 1-2-2 Tamazo, Chuo-ku, Osaka City, Osaka Prefecture Mita Kogyo Co., Ltd. (72) Kazuya Obara 1-2, Tamatsukuri, Osaka-shi, Osaka City No. 28 In Mita Industry Co., Ltd. (72) Inventor Hideki Miyazaki 1-2-2 Tamatsukuri Chuo-ku, Osaka City, Osaka Prefecture Mita Industry Co., Ltd.

Claims (4)

[Claims] 1. A carrying means for carrying an outer peripheral surface of a work having a circular cross section in a rotatably fixed position, a rotation driving means for rotating the carried work, and a specified position in the longitudinal direction of the rotated work. A coating apparatus comprising: a coating head configured to coat a material to be coated. 2. A supporting means for supporting the outer peripheral surface of a work having a circular cross section in a rotatably fixed position, a rotation driving means for rotating the carried work, and a specific position in the longitudinal direction of the rotated work. A coating apparatus comprising: a coating head that coats a material to be coated; and a displacement unit that displaces the coating head in a direction facing a workpiece. 3. The coating apparatus according to claim 1 or 2, wherein a plurality of the coating heads are provided corresponding to a portion to be coated with the coating material. 4. An integrated unit for accommodating an agent to be applied to a work, and an application head for applying the agent to be applied by rolling contact with the object to be accommodated and the workpiece. An application cartridge characterized by having.