JP2003117447A - Cartridge type coating equipment - Google Patents

Abstract

(57) [Problem] To reduce running cost by fixing a cartridge to a cartridge mounting portion without requiring external power. SOLUTION: Between a housing 2 and a cartridge 20, a magnetic attraction device 32 composed of a permanent magnet 33 provided on a bottom surface 4A of a cartridge mounting portion 4 and a magnetic body 34 provided on a front surface 21A of a cylinder 21 is provided. The configuration was provided. Accordingly, the cartridge 20 can be fixed to the housing 2 by inserting the cylinder 21 into the cartridge mounting portion 4 and attracting the permanent magnet 33 and the magnetic body 34 by magnetic force. Thereby, even if the equipment related to the cartridge type coating apparatus 1 breaks down, the cartridge 20 can be held on the housing 2 side by the magnetic attraction device 32. Also, running costs can be reduced by utilizing magnetic force.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge type coating apparatus for coating an object to be coated while changing colors by replacing cartridges of respective colors.

[0002]

2. Description of the Related Art Generally, as a coating apparatus for coating an object to be coated such as an automobile body, a coating apparatus equipped with a rotary atomizing head type coating machine, a hydraulic atomizing type coating machine and an air atomizing type coating machine is used. is there. Further, in recent years, it has been desired that the coating apparatus be able to reduce the amount of paint and solvent to be discarded at the time of color changing work, and be able to handle many coating colors.

Therefore, a cartridge type coating apparatus is known as a coating apparatus capable of coping with the reduction of waste paint, solvent, and increase of coating color (for example, Japanese Patent Laid-Open No. 11-2.
62699, JP-A-8-229446, etc.). This cartridge type coating device is configured such that a cartridge filled with a paint for each color is replaced and attached to a housing provided with a coating machine.

In this type of prior art cartridge type coating apparatus, the front side is a coating machine mounting portion for mounting a coating machine, and the rear side is a cartridge mounting portion for mounting a cartridge, and the coating machine mounting portion of the housing. , A rotary atomizing head type sprayer that sprays the supplied paint toward the object to be coated, a hydraulic atomizing type, and the like, and the cartridge mounting part of the housing is replaceably mounted.
It is generally constituted by a cartridge filled with the paint to be supplied to the coating machine.

Further, the cartridge is a cylinder having both ends closed and a cylinder filled with paint, and a feed tube extending axially from the cylinder for discharging the paint in the cylinder toward a coating machine. It is composed by.
Further, the cartridge mounting portion of the housing is formed as a bottomed hole having an opening on the rear side. Then, the cartridge is mounted by fitting the cylinder into the cartridge mounting portion.

When the cartridge is mounted on the cartridge mounting portion, the O-ring provided on the outer peripheral side of the cylinder slidably contacts the inner peripheral surface of the cartridge mounting portion to define a negative pressure space. Then, by sucking the air in the negative pressure space through the air suction passage provided in the housing, the cartridge is fixed in the cartridge mounting portion.

In the cartridge type coating device thus constructed, the cartridge of the coating color used for coating is selected from the cartridges of the respective colors and mounted on the cartridge mounting portion of the housing. Then, by discharging the paint in the cylinder of the cartridge from the feed tube toward the coating machine, the paint is sprayed from the coating machine onto the object to be coated.

Further, when the color changing work is performed, the color changing can be performed by simply replacing the cartridge with a cartridge filled with a paint of another color without wastefully discarding the paint and the solvent.

[0009]

By the way, in the above-mentioned cartridge type coating apparatus according to the prior art, an O ring is provided on the outer peripheral side of the cylinder of the cartridge, and the O ring is slidably contacted with the inner peripheral surface of the cartridge mounting portion. Thus, a negative pressure space is defined between the cartridge mounting portion and the cylinder. The cartridge is fixed to the cartridge mounting portion by sucking the air in the negative pressure space. However, the O attached to the cartridge
Since the ring only slidably contacts the inner peripheral surface of the cartridge mounting portion, the negative pressure space cannot be completely sealed. Therefore, atmospheric air gradually flows into the negative pressure space, and therefore, in order to maintain the fixed state of the cartridge with respect to the housing, it is necessary to constantly operate the negative pressure generation device to continuously suck air in the negative pressure space. is there.

Therefore, when the negative pressure generator, the piping, the hoses, etc. are broken or damaged and the suction of air is stopped,
Since it is not possible to maintain the negative pressure space in the negative pressure state, there is a problem that the cartridge falls off from the housing, the coating line is stopped, and the productivity is reduced.

Further, the coating apparatus may stop (pause) the coating line during the coating work for some reason. However, when the cartridge is attached to the housing of the coating device, the negative pressure generating device needs to be operated regardless of the stop period, which causes a problem of increased running cost.

Further, when the cylinder of the cartridge is attached to and removed from the cartridge mounting portion, the O-ring provided on the outer periphery of the cylinder comes into frictional contact with the inner peripheral surface of the cartridge mounting portion. For this reason, the O-ring is apt to be damaged by twisting or abrasion, so that there is a problem in that the O-ring must be periodically replaced in a short period of time.

Moreover, if the O-ring is twisted when the cartridge is attached and detached as described above, the shape of the O-ring is deformed and the cylinder of this cartridge is displaced from the axial center position of the cartridge mounting portion. . As a result, the feed tube extending from the cylinder also has its tip displaced from the axial center of the coating machine. For this reason,
When supplying paint from the feed tube to the coating machine,
There is a problem that a part of the paint overflows to the outside, and the reliability of the coating device is lowered.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to simply and easily attach the cartridge to the cartridge mounting portion without requiring external power such as a negative pressure generator. Can be securely fixed,
It is an object of the present invention to provide a cartridge type coating apparatus capable of reducing running costs, improving productivity and reliability.

[0015]

A cartridge type coating apparatus according to the present invention comprises a housing having a coating machine mounting portion for mounting a coating machine on the front side and a cartridge mounting portion for mounting a cartridge on the rear side, and a coating machine mounting portion of the housing. And a coating machine that sprays the supplied coating material onto the object to be coated, and a cartridge that is replaceably mounted on the cartridge mounting portion of the housing and that is filled with the coating material to be supplied to the coating machine.

In order to solve the above problems,
A feature of the configuration adopted by the invention of claim 1 is that a magnetic attraction device is provided between the cartridge mounting portion of the housing and the cartridge so that the cartridge is detachably attracted to the cartridge mounting portion by magnetic force. It is in.

With this configuration, when the cartridge is mounted in the cartridge mounting portion of the housing, the magnetic attraction device utilizes the magnetic force of the permanent magnet, electromagnet or the like without using external power such as the negative pressure generator. Then, the cartridge can be adsorbed to the cartridge mounting portion.

According to the second aspect of the present invention, in the magnetic attraction device, the permanent magnet provided on one of the cartridge mounting portion of the housing and the cartridge, and the magnetic member provided on the other so as to face the permanent magnet. It consists of the body and the body.

With this configuration, when the cartridge is mounted in the cartridge mounting portion of the housing, for example, the permanent magnet provided in the cartridge mounting portion is attracted to the magnetic body provided in the cartridge, and is attached to the cartridge mounting portion. In contrast, the cartridge can be fixed.

According to the third aspect of the invention, in the magnetic attraction device, the first permanent magnet provided on one of the cartridge mounting portion of the housing and the cartridge and facing the first permanent magnet. A second permanent magnet provided on the other side, and the first permanent magnet and the second permanent magnet.
The permanent magnets are arranged so that their magnetic poles are different from each other.

With this configuration, when the cartridge is mounted in the cartridge mounting portion of the housing, for example, the first permanent magnet provided in the cartridge mounting portion is the second permanent magnet having a different magnetic pole provided in the cartridge. The magnet can be attracted to the magnet to fix the cartridge to the cartridge mounting portion.

According to a fourth aspect of the present invention, in the magnetic attraction device, the first magnet group is provided in either the cartridge mounting portion of the housing or the cartridge, and a plurality of permanent magnets are arranged so that different magnetic poles are arranged. And a second magnet group provided on the other side so as to face the first magnet group and in which a plurality of permanent magnets are arranged so that different magnetic poles are arranged side by side, the first magnet group and the second magnet group This is because the permanent magnets facing each other are different in magnetic poles from each other.

With this structure, when the cartridge is mounted in the cartridge mounting portion of the housing, the first magnet group and the second magnet group are attracted to each other to fix the cartridge to the cartridge mounting portion. it can. Further, when the second magnet group approaches the first magnet group, the same poles of the permanent magnets forming the first and second magnet groups repel each other and the different poles attract each other. 1
The magnet group and the second magnet group can be attracted while correcting the positional deviation, and the cartridge can be mounted in the positioned state with respect to the cartridge mounting portion.

According to the fifth aspect of the present invention, the housing is provided with the removal air supply passage for supplying the removal air for removing the cartridge from the cartridge mounting portion between the cartridge mounting portion and the cartridge.

With this configuration, when the cartridge is detached from the cartridge mounting portion, detached air is supplied from the detaching air supply passage between the cartridge mounting portion and the cartridge. As a result, the cartridge is pushed by the pressure of the removing air, so that the cartridge can be removed from the cartridge mounting portion against the magnetic force of the magnetic attraction device.

According to the sixth aspect of the present invention, the cartridge mounting portion is formed as a bottomed hole having a bottom surface, and the cartridge has a cylindrical shape and a cylinder for storing the paint therein and an axial direction extending from the front side of the cylinder. A feed tube is provided, and one of the bottom surface of the cartridge mounting portion and the front surface of the cylinder has a removal air space in which the removal air is introduced from the removal air supply passage by contacting the other surface. There is a defining seal member.

With this configuration, when the cartridge is attached to the cartridge mounting portion, the seal member defines a detached air space between the cartridge mounting portion and the cylinder. Therefore, the seal member is detached from the detached air space. By supplying air, this air pressure can be efficiently applied to the cylinder, and the cartridge can be easily removed. Moreover, since the seal member only abuts on the bottom surface of the cartridge mounting portion side or the front surface of the cylinder side, there is no twist or sliding wear when the cartridge is attached or detached.

According to the invention of claim 7, the permanent magnet is provided with a convex portion or a concave portion, and the magnetic body facing the permanent magnet is provided with a concave portion or a convex portion that fits into the convex portion or the concave portion. is there. Similarly, according to the invention of claim 8, the permanent magnet is provided with a convex portion or a concave portion, and the permanent magnet facing the permanent magnet is provided with a concave portion or a convex portion that fits into the convex portion or the concave portion. is there.

With this configuration, when the permanent magnet and the permanent magnet or magnetic body facing the permanent magnet are attracted to each other, the two engage in a concave-convex shape, so that the cartridge causes the concave-convex fitting to cause a predetermined amount in the casing mounting portion. Can be positioned in position.

According to a ninth aspect of the present invention, in a magnetic attraction device, an electromagnet provided on one of a cartridge mounting portion of a housing and a cartridge, and a magnetic body provided on the other so as to face the electromagnet. It is composed by.

With this configuration, when the cartridge is mounted in the cartridge mounting portion of the housing, power is supplied to, for example, the electromagnet provided in the cartridge mounting portion. As a result, the electromagnet generates a magnetic force to be attracted to the magnetic body provided in the cartridge, and the cartridge can be fixed to the cartridge mounting portion.

[0032]

BEST MODE FOR CARRYING OUT THE INVENTION A cartridge type coating apparatus equipped with a rotary atomizing head type coating machine as a cartridge type coating apparatus according to an embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

First, FIGS. 1 to 6 show a first embodiment of the present invention. Reference numeral 1 denotes a cartridge type coating device (hereinafter referred to as coating device 1) provided in, for example, a coating robot, a reciprocator or the like (none of which is shown). The coating device 1 includes a housing 2 and a feed tube insertion hole described later. 5 and 10, a coating machine 6, a cartridge 20 and the like.

Reference numeral 2 is a housing of the coating apparatus 1. The housing 2 is made of, for example, PTFE, PEEK, PEI, PO.
It is formed of a high-performance resin material (engineering plastic) such as M, PI, or PET. The housing 2 is composed of, for example, a neck portion 2A that is detachably attached to the tip of a wrist (not shown) of the painting robot, and a head portion 2B integrally formed at the tip of the neck portion 2A.

Here, a coating machine mounting portion 3 is formed in a concave cylindrical shape on the front side of the head portion 2B, and a cartridge mounting portion 4 is formed in a concave cylindrical shape on the rear side of the head portion 2B. Further, the cartridge mounting portion 4 has a bottomed hole having an open rear end, and the bottom surface 4A of the cartridge mounting portion 4 is
As shown in FIGS. 2 and 3, a plurality of magnet mounting holes 4B, 4B, ... In which permanent magnets 33, which will be described later, are mounted are formed at intervals, for example, at four positions in the circumferential direction.

Reference numeral 5 denotes a housing-side feed tube insertion hole which is provided so as to communicate between the coating machine mounting portion 3 and the cartridge mounting portion 4, and the housing-side feed tube insertion hole 5 has a feed tube whose front side has a small diameter. Insertion part 5A
And the rear side is a conical diameter-reduced portion 5B whose diameter is conically reduced. Here, the feed tube insertion portion 5A is formed coaxially with a coater side feed tube insertion hole 10 described later. Further, the conical diameter reducing portion 5B is for abutting and fitting with a conical convex portion 22 of the cartridge 20 which will be described later, and positioning it in the axial and radial directions.

Reference numeral 6 is a coating machine for spraying paint, and the coating machine 6
Is mounted in the coating machine mounting portion 3 of the head portion 2B. Here, as shown in FIG. 1, the coating machine 6 includes an air motor 7 including a motor case 7A, a rotating shaft 7B, an air turbine 7C, and an air bearing 7D, and a paint supplied by the air motor 7 that is rotated by a centrifugal force. A rotary atomizing head 8 for atomizing and atomizing and spraying toward the object to be coated, and a shaping air ring provided on the front end side of the air motor 7 and having a number of shaping air ejection holes 9A, 9A (only two are shown). It is generally composed of 9 and 9.

Reference numeral 10 is a feed tube insertion hole provided on the coating machine 6 on the coating machine side.
Penetrates in the axial direction of the rotary shaft 7B that constitutes the air motor 7. Here, the feed tube insertion hole 1 on the coating machine side
The base end side of 0 is the housing side feed tube insertion hole 5
To the feed tube insertion portion 5A, and the tip end side is opened in the rotary atomizing head 8. Further, the feed tube insertion hole 10 on the coating machine side is provided with the feed tube insertion portion 5A.
It is formed coaxially with. The feed tube 23 of the cartridge 20 is removably inserted into the feed tube insertion holes 5 and 10.

Reference numeral 11 denotes a high voltage generator provided on the neck portion 2A of the housing 2. The high voltage generator 11 is constituted by, for example, a Cockcroft circuit, and supplies a voltage supplied from a power supply device (not shown), for example. -60 to -12
The voltage is boosted to 0 kV. And the high voltage generator 1
The output side of 1 is electrically connected to, for example, the air motor 7, whereby the high voltage generator 11 applies a high voltage to the rotary atomizing head 8 via the rotary shaft 7B of the air motor 7 to directly charge the paint. Let

Reference numeral 12 denotes a plurality of air passages provided in the neck portion 2A of the housing 2 and connected to a control air source (not shown). Each of the air passages 12 is a turbine air for controlling the air motor 7. , Bearing air, brake air, shaping air for forming a spray pattern of paint, etc., but in this embodiment, 1 is representative.
Only the air passages of the book are shown.

Reference numeral 13 denotes a housing-side extruding thinner passage provided in the housing 2, and the extruding thinner passage 13 is
One end is connected to an extrusion thinner supply device (not shown) that supplies the extrusion thinner toward the cartridge 20. The thinner passage 13 has a female connection portion (not shown) whose other end is provided on the bottom surface 4A of the cartridge mounting portion 4.
And a cartridge-side pushing thinner passage 27 which will be described later.
Connected to.

Reference numeral 14 denotes a housing-side pilot air passage provided in the housing 2.
Has one end connected to a paint valve pilot air source (neither is shown) via a pilot air pipe. The other end of the pilot air passage 14 opens to a male connecting portion (not shown) provided on the bottom surface 4A of the cartridge mounting portion 4 and is connected to a cartridge-side pilot air passage 30 described later.

Reference numeral 15 denotes a detaching air supply passage which is provided in the housing 2 and opens at the bottom surface 4A of the cartridge mounting portion 4. The detaching air supply passage 15 is provided with an detaching air source (neither is shown). )It is connected to the.
The removal air supply passage 15 supplies the removal air to the removal air space 16 (illustrated in FIG. 2) defined between the cartridge mounting portion 4 and the cylinder 21 of the cartridge 20 to remove the cartridge mounting portion. The cartridge 20 can be removed from 4.

Reference numeral 17 denotes a thinner valve provided in the head portion 2B of the housing 2, and the thinner valve 17 is accommodated in the thinner valve accommodating portion 18. The thinner valve 17 normally shuts off the housing-side pushing thinner passage 13 and stops the supply of thinner to the pushing thinner housing chamber 26 of the cartridge 20 described later. On the other hand, the thinner valve 17
When pilot air is supplied from a thinner pilot air source (not shown) through the pilot air passage 19, the housing-side extruding thinner passage 13 is communicated to allow the supply of thinner to the extruding thinner accommodating chamber 26. You can

On the other hand, 20a, 20b, ...
It is a cartridge (hereinafter, referred to as a cartridge 20 as a whole) for individually storing the color, b color, ... N color paints and supplying them to the rotary atomizing head 8. As shown in FIG. 4, the cartridge 20 is generally composed of a cylinder 21, a feed tube 23, etc. described later.

Reference numeral 21 denotes a cylinder forming the main body of the cartridge 20. The cylinder 21 is formed as a cylindrical body (cylinder) having a diameter dimension slightly smaller than the inner diameter dimension of the cartridge mounting portion 4, and the front and rear thereof. The direction is closed by a front surface 21A and a rear surface 21B. Further, as shown in FIG. 5, a magnetic body 34, which will be described later, is provided on the front surface 21A of the cylinder 21.
A plurality of magnetic material mounting holes 21C, 21C, ...
Are formed at intervals, for example, at four positions in the circumferential direction. Further, at the outer peripheral position on the front side of the cylinder 21, the O
A mounting groove 21D in which the ring 31 is mounted is formed over the entire circumference. On the other hand, the rear surface 21B of the cylinder 21 has a grip projection 2 that is gripped when the cartridge 20 is replaced.
1E is provided.

Reference numeral 22 denotes a conical convex portion which is located at the center of the front surface 21A of the cylinder 21 and which is provided so as to project in the axial direction.
Reference numeral 2 denotes a part of the cylinder 21, and the tip side thereof is gradually reduced in diameter toward the front side. Then, the conical convex portion 22
Is the cartridge mounting portion 4 of the housing 2
When it is attached to, the cylinder 21 is brought into contact with and engages with the conical diameter-reduced portion 5B of the feed tube insertion hole 5 to position the cylinder 21 in the axial and radial directions.

Further, 23 is a conical convex portion 22 of the cylinder 21.
The feed tube 23 is provided so as to extend in the axial direction from the tip, and a paint passage 23A coaxially extending is formed in the feed tube 23. Then, the paint passage 23
The base end side of A is connected to a paint storage chamber 25 described later, and the tip end side is open toward the rotary atomizing head 8. On the other hand, the feed tube 23 has the feed tube insertion holes 5, 1 when the cartridge 20 is attached to the cartridge attachment portion 4.
0, the tip of which is disposed in the rotary atomizing head 8.

Here, the feed tube 23 circulates the paint supplied from a paint storage chamber 25, which will be described later, in the paint passage 23A, and flows out from the tip of the paint passage 23A toward the rotary atomizing head 8. . Also, the feed tube 23
Is used as a paint filling port when the paint is filled in the paint containing chamber 25.

Reference numeral 24 denotes a piston which is slidably inserted in the cylinder 21 in the axial direction.
The interior is divided into a paint storage chamber 25 that communicates with the paint passage 23A of the feed tube 23 and an extrusion thinner storage chamber 26 that stores thinner as extrusion liquid.

Reference numeral 27 denotes a cartridge-side push-out thinner passage, and the push-out thinner passage 27 is provided by extending the outer peripheral side of the cylinder 21 in the axial direction. Here, one end of the cartridge-side pushing thinner passage 27 is opened to a male connection portion (not shown) provided on the front surface 21A of the cylinder 21, and the other end is in communication with the pushing thinner housing chamber 26. Then, when the cartridge 20 is attached to the housing 2 and the cartridge-side pushing thinner passage 27 is connected to the housing-side pushing thinner passage 13, the pushing thinner housing chamber 2
The thinner is supplied to the inside of the unit 6. As a result, the piston 24
Is pushed inside the cylinder 21 toward the feed tube 23, and the piston 24 pushes out the paint filled in the paint containing chamber 25 toward the rotary atomizing head 8.

The thinner used as the extruding liquid has a high insulating property or a high electric resistance in order to prevent the high voltage generated by the high voltage generator 11 from leaking through the thinner.

28 is a paint valve provided on the cylinder 21,
The paint valve 28 is housed in a paint valve housing portion 29. The paint valve 28 includes a piston 28A slidably fitted in a paint valve housing portion 29, a valve portion 28B protruding from the piston 28A to open and close the paint passage 23A of the feed tube 23, and the piston 28A. Through valve section 28
It is generally constituted by a valve spring 28C that biases B in the valve closing direction. As a result, the paint valve 28 normally causes the paint passage 23A to move through the valve portion 28B by the urging force of the valve spring 28C.
And the supply of paint to the rotary atomizing head 8 is stopped. On the other hand, when the pilot air is supplied from the paint valve pilot air source (not shown) through the housing side pilot air passage 14 and the cartridge side pilot air passage 30, the piston 28A moves to the valve spring 28C.
The valve portion 28B is opened by displacing in the valve opening direction against the pressure.
This allows the paint passage 23A to communicate with each other and allows the paint to be supplied to the rotary atomizing head 8.

Reference numeral 31 denotes an O-ring as a sealing member which is mounted in the mounting groove 21D of the cylinder 21.
Is the cartridge mounting portion 4 of the housing 2
It is slidably contacted with the inner peripheral surface of the cartridge mounting portion 4 when it is fitted inside. As a result, the O-ring 31
The airtightness of the removal air space 16 defined between the cartridge mounting portion 4 and the cylinder 21 is enhanced.

Reference numeral 32 denotes a magnetic attraction device provided between the cartridge mounting portion 4 of the housing 2 and the cartridge 20. The magnetic attraction device 32 detachably attracts the cartridge 20 to the cartridge mounting portion 4 by magnetic force. To do. The magnetic attraction device 32 is composed of a permanent magnet 33 and a magnetic body 34, which will be described later, as shown in FIG.

Reference numerals 33, 33, ... Denote a plurality of, for example, four permanent magnets provided on the bottom surface 4A of the cartridge mounting portion 4. Here, each of the permanent magnets 33 is formed in a short columnar shape using a magnetic material having a large coercive force, such as a metal magnet or a ferrite magnet. And each permanent magnet 33
Are attached to magnet mounting holes 4B provided on the bottom surface 4A, and in this state, the surface of each permanent magnet 33 is substantially flush with the bottom surface 4A.

Reference numerals 34, 34, ... Denote a plurality of magnetic bodies, for example, four, provided on the cylinder 21 of the cartridge 20. Here, each magnetic body 34 is formed in a short columnar shape using a magnetic material having a small coercive force and a large relative magnetic permeability, such as silicon steel or permalloy. Then, each magnetic body 34 is attached to the cylinder 21 so as to face each permanent magnet 33.
Is attached to a magnetic material mounting hole 21C provided in the front surface 21A, and in this state, the surface of each magnetic material 34 is substantially flush with the front surface 21A.

When the cylinder 21 of the cartridge 20 is mounted in the cartridge mounting portion 4 of the housing 2, the magnetic attraction device 32 separates the permanent magnets 33 on the housing 2 side and the magnetic bodies 34 on the cartridge 20 side. The cartridge 20 is fixed in the cartridge mounting portion 4 by being attracted by a magnetic force.

When the cartridge 20 attracted by the magnetic attraction device 32 is to be removed from the cartridge mounting portion 4, air is supplied to the removal air space 16 through the removal air supply passage 15. This allows the cartridge 2
0 is pushed by the pressure of the air space 16 and can be removed against the magnetic force of the magnetic attraction device 32.

The magnetic attraction device 3 according to the present embodiment.
2, the permanent magnet 33 is provided on the housing 2 side, and the magnetic body 34 is provided on the cartridge 20 side. Instead of this combination, the magnetic body 34 may be provided on the housing 2 side and the permanent magnet 33 may be provided on the cartridge 20 side. Further, the permanent magnet 33 may be provided on the housing 2 side, and another permanent magnet may be provided on the cartridge 20 side so that the magnetic pole is different from that of the permanent magnet 33 on the housing 2 side. In each of these configurations, the cartridge 2 is housed in the housing 2.
0 can be adsorbed.

The cartridge type coating apparatus 1 according to the present embodiment has the above-mentioned structure. Next, the operation when the cartridge type coating apparatus 1 is used to coat a color paint will be described.

First, the cartridge 20a filled with the color a paint is attached to the cartridge mounting portion 4 of the housing 2. Then, the rotary atomizing head 8 is rotated at high speed by the air motor 7, and shaping air is ejected from the shaping air ring 9. In this state, thinner valve 17 and paint valve 2
When valve 8 is opened, the extruding thinner passes through the extruding thinner passage 1
It flows into the extruding thinner accommodating chamber 26 of the cartridge 20 a through 3, 27. Thereby, the cartridge 20a
The color a paint in the paint storage chamber 25 is pushed out by the piston 24 pushed by the extrusion thinner, and discharged to the rotary atomizing head 8 through the paint passage 23A of the feed tube 23. Then, the a-color paint discharged onto the rotary atomizing head 8 is
It is atomized by the rotary atomizing head 8 and is sprayed toward an object to be coated in a state of being patterned by shaping air.

Next, the operation when the cartridge 20 is attached to and detached from the cartridge mounting portion 4 of the housing 2 will be described.

First, when the cartridge 20 is attached to the cartridge mounting portion 4, the grip projection 21E provided on the cylinder 21 of the cartridge 20 is gripped by the arm (not shown) of the cartridge exchanging device to feed the cartridge 20 to the feed tube. It is inserted into the cartridge mounting portion 4 from the 23 side. As a result, the feed tube 23 is inserted into the feed tube insertion holes 5 and 10, and the cylinder 21
The front side is inserted into the cartridge mounting portion 4.
When the cylinder 21 is deeply inserted into the cartridge mounting portion 4, the permanent magnets 33 of the magnetic attraction device 32 provided on the bottom surface 4A of the cartridge mounting portion 4 and the magnetism provided on the front surface 21A of the cylinder 21. The body 34 is attracted by magnetic force. As a result, the cartridge 20 can be fixed to the housing 2 by the attraction force of the magnetic attraction device 32.

Further, when the cartridge 20 is attached to the housing 2 by the magnetic attraction device 32, the conical convex portion 22 abuts on the conical reduced diameter portion 5B of the housing side feed tube insertion hole 5, so that the feed tube 23 rotates. It is positioned at the center of the atomizing head 8.

On the other hand, when the cartridge 20 is detached from the cartridge mounting portion 4, the detached air is supplied to the detached air space 16 through the detached air supply passage 15. As a result, the pressure in the removal air space 16 whose airtightness is enhanced by the O-ring 31 is increased, so that the permanent magnet 33 and the magnetic body 34 of the magnetic attraction device 32 can be separated from each other against the magnetic force. In this state, the cartridge 20 can be detached from the cartridge mounting portion 4 by grasping and pulling out the grasping protrusion 21E of the cylinder 21 with the arm of the cartridge exchanging device (not shown).

As described above, according to the first embodiment,
A magnetic attraction device 32 including a permanent magnet 33 provided on the bottom surface 4A of the cartridge mounting portion 4 and a magnetic body 34 provided on the front surface 21A of the cylinder 21 is provided between the housing 2 and the cartridge 20. . Therefore,
The cartridge 20 can be fixed to the housing 2 by inserting the cylinder 21 into the cartridge mounting portion 4 and adsorbing the permanent magnet 33 and the magnetic body 34.
This eliminates the need for external power such as a negative pressure generator as in the prior art, so that even if a device related to the cartridge type coating device 1 fails, the cartridge 2
0 can be held on the housing 2 side.

As a result, it is possible to prevent the situation where the cartridge 20 is dropped from the housing 2 and the coating line is stopped, so that the productivity can be improved. Moreover, since the magnetic force of the permanent magnet 33 is used,
The running cost can be reduced and the handleability can be improved.

Further, since the housing 2 is provided with the detaching air supply passage 15 opening to the bottom surface 4A of the cartridge mounting portion 4, when detaching the cartridge 20 from the cartridge attaching portion 4, the detaching air supply passage 15 is removed. By supplying the removal air to the removal air space 16, the cartridge 20 can be easily removed from the cartridge mounting portion 4, and the workability can be improved.

Next, a second embodiment of the present invention will be described in detail with reference to FIGS. 7 and 8. A feature of the present embodiment is that the magnetic attraction device includes a first magnet group that is provided on either one of the cartridge mounting portion of the housing and the cartridge, and that has a plurality of permanent magnets arranged so that different magnetic poles are aligned. A second magnet group, which is provided on the other side so as to face the first magnet group, and has a plurality of permanent magnets arranged so that different magnetic poles are aligned, and the first magnet group and the second magnet group Is that the magnetic poles of the facing permanent magnets are different from each other. In addition, in the present embodiment, the same components as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

Reference numeral 41 is a cartridge type coating apparatus according to this embodiment, and 42 is a housing of the coating apparatus 41. Here, the cartridge mounting portion 43 is formed in a concave cylindrical shape on the rear side of the head portion 42A of the housing 42. Further, on the bottom surface 43A of the cartridge mounting portion 43, a plurality of magnet mounting holes 43B, 43B, ... In which a first magnet group 49 to be described later is mounted, are arranged at intervals in the circumferential direction.
For example, it is formed at four locations.

Reference numeral 44 denotes a cartridge according to the present embodiment which is replaceably attached to the cartridge attachment portion 43 of the housing 42 (see FIG. 8). The cartridge 44 has a cylinder 45 and a conical shape as in the first embodiment. Convex portion 46,
The feed tube 47 and the like are included.
Further, the cylinder 45 has a tubular body whose both ends are closed, and a front surface 45A thereof is provided with a plurality of magnet mounting holes 45B, 45B, ... , For example, are formed at four places.

Next, reference numeral 48 denotes a magnetic attraction device according to the present embodiment provided between the cartridge mounting portion 43 of the housing 42 and the cartridge 44.
Is for removably adsorbing the cartridge 44 to the cartridge mounting portion 43 by magnetic force. The magnetic attraction device 48 is composed of a first magnet group 49 and a second magnet group 50 described later.

.. are cartridge mounting portions 43
A plurality of sets attached to the respective magnet mounting holes 43B, for example, 4
In the first magnet group of the set, each magnet group 49 is formed by arranging three permanent magnets 49A, 49A, 49A in the shape of a rectangular parallelepiped in the circumferential direction. Here, each permanent magnet 4
9A is a magnetic pole on the side facing the second magnet group 50 (S pole,
N poles) are arranged side by side so that they are different. That is, the permanent magnets 49A are arranged in such an order that when the central permanent magnet 49A has the S pole, the permanent magnets 49A, 49A on both sides have the N pole.

.. are a plurality of sets, for example, four sets of second magnet groups mounted in the magnet mounting holes 45B of the cylinder 45 so as to face the first magnet group 49.
0 is formed by arranging three permanent magnets 50A, 50A, 50A in the shape of a rectangular parallelepiped in the circumferential direction in the same manner as the first magnet group 49. In addition, each permanent magnet 50A
Are arranged so that their magnetic poles are different from those of the facing permanent magnet 49A. That is, the permanent magnets 50A are arranged in the reverse order of the first magnet group 49 so that the central permanent magnet 50A has the N pole and the permanent magnets 50A on both sides have the S pole.

Thus, according to the second embodiment configured as described above, the magnetic attraction device 48 includes the housing 4
When the cylinder 45 of the cartridge 44 is mounted in the cartridge mounting portion 43 of the second cartridge, the first magnet group 49 on the housing 42 side and the second magnet group 50 on the cartridge 44 side are attracted to each other. The cartridge 44 can be fixed in 43.

Moreover, the order of the magnetic poles of the permanent magnets 49A forming the first magnet group 49 is N, S, N, and the order of the magnetic poles of the permanent magnets 50A forming the second magnet group 50 is S, N and S. Therefore, when the second magnet group 50 approaches the first magnet group 49, each permanent magnet 49
In A and 50A, the same poles repel each other and the different poles attract each other. Therefore, according to the present embodiment, the first magnet group 4
9 and the second magnet group 50 are misaligned,
These characteristics can be used to correct the displacement of the cartridge 44, and the cartridge 44 can
It can be fixed accurately on the 2 side.

Next, a third embodiment of the present invention will be described in detail with reference to FIG. In this embodiment as well, the cartridge mounting portion is formed as a bottomed hole, and the cartridge has a cylindrical cylinder for storing the paint therein and a feed tube extending axially from the cylinder. However, the feature of the present embodiment is that the removal air into which the removal air flows from the removal air supply passage is brought into contact with the other surface of either one of the bottom surface of the cartridge mounting portion and the front surface of the cylinder. The purpose is to provide a seal member that defines a space. In addition, in the present embodiment, the same components as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

Reference numeral 61 is a cartridge type coating apparatus according to this embodiment, and 62 is a housing of the coating apparatus 61. Here, a cartridge mounting portion 63 is formed in a concave cylindrical shape on the rear side of the head portion 62A of the housing 62. Further, a plurality of magnet mounting holes 63B, 63B, ... In which the permanent magnets 33 are mounted are formed at intervals in the circumferential direction on the bottom surface 63A of the cartridge mounting portion 63 having a bottomed hole. Further, a mounting groove 63C is formed on the bottom surface 63A so as to be located radially outward of the magnet mounting holes 63B and the removal air supply passage 15, and an O-ring 68 described later is mounted in the mounting groove 63C. .

Reference numeral 64 denotes a cartridge according to the present embodiment which is replaceably mounted on the cartridge mounting portion 63 of the housing 62. The cartridge 64 is generally constituted by a cylinder 65, a conical convex portion 66, a feed tube 67 and the like. .

Here, the cylinder 65 is similar to the cylinder 21 according to the first embodiment in that the cartridge mounting portion 6
3 has a diameter slightly smaller than the inner diameter of the cylindrical body 3 and is closed at both ends to form a cylindrical body.
A plurality of magnetic material mounting holes 65B, 65B, ...
Are formed at intervals in the circumferential direction. However, the cylinder 65 according to the present embodiment is different from the cylinder 21 according to the first embodiment in that the mounting groove 21D provided in the first embodiment is eliminated.

68 is the bottom surface 63 of the cartridge mounting portion 63.
An O-ring that is located at A and is mounted in the mounting groove 63C as a sealing member, and the O-ring 68 is used when the cartridge 64 is mounted on the cartridge mounting portion 63.
5 is airtightly in contact with the front surface 65 </ b> A of No. 5. As a result, the O-ring 68 is attached to the bottom surface 6 of the cartridge mounting portion 63.
A detached air space 69 is defined between 3A and the front surface 65A of the cylinder 65.

The removal air space 69 is supplied with air from the removal air supply passage 15 and expands to separate the cylinder 65 from the bottom surface 63A against the magnetic force of the magnetic attraction device 32. As a result, the cartridge 64 can be removed from the cartridge mounting portion 63.

Thus, according to the third embodiment thus constructed, the O-ring 68 that defines the removal air space 69 is provided on the bottom surface 63A of the cartridge mounting portion 63, so the O-ring 68 is provided. Is the front 65A of the cylinder 65
It just comes into contact with. Therefore, as compared with the case where the O-ring is provided on the outer peripheral side of the cylinder as in the prior art, it is possible to prevent the O-ring from twisting, sliding, and the like, and to extend the life of the O-ring 68.

Further, as described above, when the cartridge 64 is attached to and detached from the cartridge attaching portion 63,
Since the O-ring 68 is not twisted or deformed, the tip end portion of the feed tube 67 can be arranged at the center position of the rotary atomizing head 8. As a result, the feed tube can smoothly supply the paint toward the rotary atomizing head 8, and the reliability of the cartridge type coating device 61 can be improved.

Next, a fourth embodiment of the present invention will be described with reference to FIG.
And it demonstrates in detail according to FIG. The feature of this embodiment is that the permanent magnet is provided with a convex portion or a concave portion, and the magnetic body or the permanent magnet facing the permanent magnet is provided with a concave portion or a convex portion that fits into the convex portion or the concave portion. is there. In addition, in the present embodiment, the same components as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

Reference numeral 71 denotes a magnetic attraction device according to the present embodiment which is provided between the cartridge mounting portion 4 of the housing 2 and the cartridge 20. The magnetic attraction device 71 attracts the cartridge 20 to the cartridge mounting portion 4. To do. The magnetic attraction device 71 is composed of a permanent magnet 72 and a magnetic body 73, which will be described later.

Reference numerals 72, 72, ... Denote a plurality of permanent magnets mounted in the respective magnet mounting holes 4B of the cartridge mounting portion 4,
As shown in FIG. 11, each permanent magnet 72 is formed in a short, substantially cylindrical shape. Further, each of the permanent magnets 72 is provided with a spherical convex portion 72A on the facing surface facing a magnetic body 73 described later.

Reference numerals 73, 73, ... Denote a plurality of magnetic members mounted in the respective magnetic member mounting holes 21C of the cylinder 21, and each magnetic member 73 is formed of a magnetic material into a short, substantially cylindrical shape. There is. Further, each magnetic body 73 has a spherical concave portion 73A formed on the facing surface facing the permanent magnet 72.

Here, the permanent magnet 72 and the magnetic body 73 are
When the cartridge 20 is mounted on the cartridge mounting portion 4, it is adsorbed and the cartridge 2 is placed in the cartridge mounting portion 4.
It fixes 0. Further, since the spherical convex portion 72A of the permanent magnet 72 and the spherical concave portion 73A of the magnetic body 73 are formed by a gently inclined fitting surface, even if a slight displacement occurs when attracting. It is possible to easily correct the positional deviation and accurately position and fix the cartridge 20 on the housing 2 side.

Next, FIG. 12 shows a fifth embodiment of the present invention.
Will be described in detail. The feature of the present embodiment is that the magnetic attraction device is configured by an electromagnet provided on one of the cartridge mounting portion of the housing and the cartridge, and a magnetic body provided on the other so as to face the electromagnet. Especially. In addition, in the present embodiment, the same components as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

Reference numeral 81 denotes a cartridge type coating apparatus according to this embodiment, and 82 denotes a housing of the coating apparatus 81. Here, in the housing 82, the cartridge mounting portion 83 is formed in a concave cylindrical shape on the rear side of the head portion 82A, substantially the same as the housing 2 according to the first embodiment.
The bottom surface 83A of the cartridge mounting portion 83 has a plurality of electromagnet mounting holes 83B in which electromagnets 89 to be described later are mounted,
83B, ... Are formed at intervals in the circumferential direction. However, the housing 82 according to the present embodiment differs from the housing 2 according to the first embodiment in that the removal air supply passage 15 is eliminated.

Reference numeral 84 is a cartridge according to the present embodiment, and the cartridge 84 is substantially composed of a cylinder 85, a conical convex portion 86, a feed tube 87, etc., similar to the cartridge 20 according to the first embodiment. There is. However, the cartridge 84 according to the present embodiment
Differs from the cartridge 20 according to the first embodiment in that the mounting groove 21D for the O-ring 31 is eliminated from the cylinder 85.

Reference numeral 88 denotes a magnetic attraction device according to the present embodiment provided between the cartridge mounting portion 83 of the housing 82 and the cartridge 84. The magnetic attraction device 88 attracts the cartridge 84 to the cartridge mounting portion 83. To do. The magnetic attraction device 88 is composed of the magnetic body 34 described above and an electromagnet 89 described later.

The cartridge mounting portion 83 is designated by 89, 89, ....
Of a plurality of electromagnets mounted in the respective electromagnet mounting holes 83B, the electromagnets 89 are, for example, the iron core 89A and the iron core 8
A coil 89B wound around 9A is formed as a resin-molded explosion-proof electromagnet. Also, the coil 8
9B is connected to the power supply via the electrical wiring 89C.

Each electromagnet 89 has an electric wiring 89C.
A magnetic force is generated by feeding power to the coil 89B via the. In this state, by mounting the cylinder 85 on the cartridge mounting portion 83, each electromagnet 89 can be attached to the magnetic body 3
4 and attach the cartridge 84 to the cartridge mounting portion 8
It can be fixed to 3. On the other hand, when removing the cartridge 84, the cartridge 84 can be easily removed from the cartridge mounting portion 83 by stopping the power supply to the electromagnet 89 and demagnetizing it.

Thus, according to the fifth embodiment having such a configuration, since the electromagnet 89 is used as a magnet, when the cartridge 84 is removed, it can be easily removed by simply stopping the power supply to the electromagnet 89. You can Therefore, the removal air supply passage or the like can be omitted, and the configuration can be simplified.

In the first embodiment, the permanent magnet 33 and the magnetic body 34 of the magnetic attraction device 32 have been described as being formed in a short cylindrical shape. However, the present invention is not limited to this, and for example, as in the first modification shown in FIG. 13, the permanent magnet 92 and the magnetic body 93 that configure the magnetic attraction device 91 may be formed in a cylindrical shape. This configuration can also be applied to other embodiments.

Further, like the magnetic attraction device 101 according to the second modification shown in FIG. 14, the cylindrical permanent magnet 102 and the convex portion 102A fitted to the magnetic body 103 are provided.
The recess 103A may be provided.

Further, in the fourth embodiment, the permanent magnet 7
The description has been given by taking as an example the case where the spherical convex portion 72A is provided on No. 2 and the spherical concave portion 73A which is fitted to the spherical convex portion 72A is provided on the magnetic body 73. However, the present invention is not limited to this, and for example, a conical convex portion is provided on one of the magnet and the magnetic body,
A conical recess may be provided on the other side. Further, the shape is not limited to these as long as it has a structure in which the concave and convex portions are fitted.

In the first embodiment, the case where the permanent magnet 33 and the magnetic body 34 of the magnetic attraction device 32 are provided at four locations in the circumferential direction has been described as an example. However, the present invention is not limited to this, and for example, the permanent magnet 33, the magnetic body 3
4 may be provided at two locations, three locations, or five or more locations in the circumferential direction.

Further, in the embodiment, the cartridge 20 is used.
The paint passage 23A provided in the feed tube 23 has been described as having both the function of filling and discharging the paint and the function of flowing the thinner as the cleaning fluid. But,
The present invention is not limited to this.
Like the cartridge shown in Japanese Patent No. 11396, the cartridge has a cleaning fluid passage on the cartridge side in addition to the paint passage in the feed tube, while the paint filling device allows the paint to flow in and out of the feed tube of the cartridge. The connection member and the filling device side cleaning fluid passage may be separately provided. In this case, at the time of cleaning the cartridge, the cleaning fluid can be supplied from the filling device side cleaning fluid passage into the cylinder via the cartridge side cleaning fluid passage.

Further, in the first embodiment, the cartridge mounting portion 4 is formed in a flat concave cylindrical shape on the bottom surface 4A, the permanent magnet 33 is mounted on the bottom surface 4A, and the front surface 2 of the cylinder 21 is mounted.
The case where 1A is formed flat and the magnetic body 34 is attached to the bottom surface 4A has been described as an example. However, the present invention is not limited to this. For example, the bottom surface of the cartridge mounting portion may be formed into a concave spherical surface to mount the permanent magnet, and the front surface of the cylinder may be formed into a convex spherical surface to mount the magnetic body.

On the other hand, in the first embodiment, the cartridge type coating apparatus 1 will be described by taking as an example the case where the cartridge type coating apparatus 1 is provided with the rotary atomizing head type coating machine 6 including the air motor 7, the rotary atomizing head 8 and the like. did. However, the present invention is not limited to this, and may be applied to a cartridge type coating apparatus equipped with other coating machines such as a hydraulic atomization type coating machine and an air atomization type coating machine. This configuration can also be applied to other embodiments.

Further, in the first embodiment, the case where the thinner is used as the extruding liquid for extruding the paint filled in the cylinder 21 of the cartridge 20 has been described as an example, but the kind of the paint and the high voltage are used. Other extruding liquids such as water may be applied depending on the application method and the like. This structure can be applied to other embodiments.

[0106]

As described above in detail, according to the first aspect of the invention, the cartridge is detachably attracted between the cartridge mounting portion of the housing and the cartridge by magnetic force with respect to the cartridge mounting portion. A magnetic attraction device is provided. Therefore, when the cartridge is mounted in the cartridge mounting portion of the housing, the magnetic attraction device uses the magnetic force of a permanent magnet, an electromagnet or the like to mount the cartridge to the cartridge mounting portion without using external power such as a negative pressure generator. Can be adsorbed.

As a result, it is possible to prevent the situation where the coating line stops due to the cartridge falling off from the housing, and the productivity can be improved. Moreover,
Since magnetic force is used, running cost can be reduced and handleability can be improved.

According to the second aspect of the present invention, the magnetic attraction device is provided with the permanent magnet provided on one of the cartridge mounting portion of the housing and the cartridge and the other so as to face the permanent magnet. It is composed of a magnetic material. Therefore, when the cartridge is mounted in the cartridge mounting portion of the housing, for example, the permanent magnet provided in the cartridge mounting portion is attracted to the magnetic body provided in the cartridge, and the magnetic force alone fixes the cartridge in the cartridge mounting portion. it can.

According to the third aspect of the present invention, the magnetic attraction device is arranged so that the first permanent magnet provided on one of the cartridge mounting portion of the housing and the cartridge faces the first permanent magnet. And a second permanent magnet provided on the other side of the first permanent magnet and the second permanent magnet.
The permanent magnets are arranged so that their magnetic poles are different from each other. Therefore, when the cartridge is mounted in the cartridge mounting portion of the housing, for example, the first permanent magnet provided in the cartridge mounting portion is attracted to the second permanent magnets having different magnetic poles provided in the cartridge, and the magnetic force alone causes the cartridge to move. The cartridge can be fixed to the mounting portion.

According to the fourth aspect of the present invention, in the magnetic attraction device, the first magnet is provided in either the cartridge mounting portion of the housing or the cartridge, and a plurality of permanent magnets are arranged so that different magnetic poles are arranged. Group, and a second magnet group provided on the other so as to face the first magnet group and having a plurality of permanent magnets arranged so that different magnetic poles are arranged, and the first magnet group and the first magnet group The permanent magnets facing the second magnet group are arranged so that their magnetic poles are different. Therefore, when the cartridge is mounted in the cartridge mounting portion of the housing, the first magnet group and the second magnet group are attracted to each other and the cartridge can be magnetically fixed to the cartridge mounting portion. Moreover, when the second magnet group approaches the first magnet group, among the permanent magnets forming the first and second magnet groups, the same poles repel each other and the different poles attract each other. Thus, the first magnet group and the second magnet group can be attracted while correcting the positional deviation, so that the cartridge can be attached to the cartridge attaching portion in a positioned state.

According to the fifth aspect of the invention, the housing is provided with a removal air supply passage for supplying removal air for removing the cartridge from the cartridge mounting portion between the cartridge mounting portion and the cartridge. Therefore, when removing the cartridge from the cartridge mounting portion, the detaching air is supplied from the detaching air supply passage between the cartridge mounting portion and the cartridge. As a result, the cartridge is pushed by the pressure of the removing air, so that the cartridge can be easily removed from the cartridge mounting portion against the magnetic force of the magnetic attraction device.

According to the sixth aspect of the present invention, the cartridge mounting portion is formed as a bottomed hole having a bottom surface, and the cartridge has a cylindrical shape, and a cylinder for storing the paint therein and an axial direction extending from the front side of the cylinder. And a feed tube, and one of the bottom surface of the cartridge mounting portion and the front surface of the cylinder has a removal air space in which the removal air is introduced from the removal air supply passage by contacting the other surface. A defining seal member is provided. Therefore, when the cartridge is mounted on the cartridge mounting portion, the seal member can define a detached air space between the bottom surface of the cartridge mounting portion and the front surface of the cylinder. Therefore, the cartridge can be easily removed by supplying the removal air to the removal air space.

In addition, since the seal member only abuts on the bottom surface of the cartridge mounting portion side or the front surface of the cylinder side, it is possible to prevent twisting or sliding wear when the cartridge is attached or detached. The life of the member can be extended. Further, by preventing the seal member from twisting, it is possible to prevent the cartridge from being displaced and to accurately and smoothly supply the coating material to the coating machine.
The reliability of the cartridge type coating device can be improved.

According to the invention of claim 7, the permanent magnet is provided with a convex portion or a concave portion, and the magnetic body facing the permanent magnet is provided with a concave portion or a convex portion fitted into the convex portion or the concave portion. . Similarly, according to the invention of claim 8, the permanent magnet is provided with a convex portion or a concave portion, and the permanent magnet facing the permanent magnet is provided with a concave portion or a convex portion fitted into the convex portion or the concave portion. Therefore, when the permanent magnet and the permanent magnet or the magnetic body facing the permanent magnet are attracted to each other, the two are engaged with each other by the recess and protrusion, so that the cartridge can be easily and accurately positioned at a predetermined position in the casing mounting portion by the recess and protrusion fitting. You can

According to the ninth aspect of the present invention, in the magnetic attraction device, the electromagnet provided on one of the cartridge mounting portion of the housing and the cartridge and the magnetic body provided on the other so as to face the electromagnet. It consists of and. Therefore, when mounting the cartridge in the cartridge mounting portion of the housing, for example, power is supplied to the electromagnet provided in the cartridge mounting portion. As a result, the electromagnet generates a magnetic force to be attracted to the magnetic body provided in the cartridge, and the cartridge can be fixed to the cartridge mounting portion. Moreover, when removing the cartridge, it can be easily removed by simply stopping the power supply to the electromagnet.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a cartridge type coating apparatus according to a first embodiment of the present invention together with a cartridge.

FIG. 2 is an enlarged vertical sectional view of an essential part showing the cartridge mounting portion of the housing in FIG. 1 together with the cartridge in an enlarged manner.

FIG. 3 is a right side view of the bottom surface side of the cartridge mounting portion of the housing when the cartridge is removed, as viewed from the direction of arrows III-III in FIG.

FIG. 4 is a vertical sectional view showing a cartridge alone.

5 is a left side view of the front side of the cartridge as seen from the direction of arrow VV in FIG.

FIG. 6 is an external perspective view showing a permanent magnet and a magnetic body in FIG. 2 in an enlarged manner.

FIG. 7 is a right side view showing the bottom surface side of the cartridge mounting portion of the housing and the first magnet group in the same position as in FIG. 3 according to the second embodiment of the present invention.

8 is a left side view of the cartridge showing the front side of the cartridge and the second magnet group in the same position as in FIG. 5 according to the second embodiment.

FIG. 9 is an enlarged longitudinal sectional view of an essential part of the same position as in FIG. 2 showing the mounting portion of the cartridge of the housing according to the third embodiment of the present invention together with the cartridge in an enlarged manner.

FIG. 10 is an enlarged longitudinal sectional view of an essential part of the same position as FIG. 2 showing the cartridge mounting portion of the housing according to the fourth embodiment of the present invention together with the cartridge in an enlarged manner.

11 is an external perspective view showing a permanent magnet and a magnetic body in FIG. 10 in an enlarged manner.

FIG. 12 is an enlarged longitudinal sectional view of an essential part of the same position as in FIG. 2 showing the cartridge mounting portion of the housing according to the fifth embodiment of the present invention together with the cartridge in an enlarged manner.

FIG. 13 is an external perspective view showing, in an enlarged manner, a permanent magnet and a magnetic body according to a first modification of the present invention.

FIG. 14 is an external perspective view showing, in an enlarged manner, a permanent magnet and a magnetic body according to a second modification of the present invention.

[Explanation of symbols]

1,41,61,81 Cartridge type coating device 2,42,62,82 housing 3 Painter mounting part 4,43,63,83 Cartridge mounting part 4A, 43A, 63A, 83A Bottom 6 coating machine 15 Removal air supply passage 16,69 Removal air space 20,44,64,84 cartridges 21,45,65,85 cylinders 21A, 45A, 65A front 23,47,67,87 Feed tube 31,68 O-ring (seal member) 32, 48, 71, 88, 91, 101 Magnetic attraction device 33, 49A, 50A, 72, 92, 102 Permanent magnet 34,73,93,103 Magnetic material 49 First magnet group 50 Second magnet group 89 Electromagnet 72A spherical projection 73A spherical recess 102A convex part 103A recess

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shinji Tani             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Yoichi Hanai             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. F-term (reference) 4F034 AA03 BA22 BB05 BB28                 4F035 AA03 BA11

Claims (9)

[Claims] 1. A housing having a coating machine mounting portion for mounting a coating machine on the front side and a cartridge mounting portion for mounting a cartridge on the rear side, and a coating material supplied to the coating machine mounting portion of the housing to be coated. In a cartridge type coating device comprising: a spraying machine for spraying a spray, and a cartridge that is replaceably mounted on a cartridge mounting portion of the housing and is filled with paint to be supplied to the coating machine. A cartridge-type coating device, characterized in that a magnetic attraction device is provided between the cartridge and the cartridge mounting portion so as to detachably attract the cartridge by magnetic force. 2. The magnetic attraction device comprises a permanent magnet provided on one of a cartridge mounting portion of the housing and a cartridge, and a magnetic body provided on the other so as to face the permanent magnet. The cartridge type coating device according to claim 1. 3. The magnetic attraction device is provided with a first permanent magnet provided on one of a cartridge mounting portion of the housing and a cartridge, and provided on the other so as to face the first permanent magnet. 2. The cartridge type coating apparatus according to claim 1, wherein the cartridge type coating apparatus comprises a second permanent magnet, and the first permanent magnet and the second permanent magnet are arranged so that their magnetic poles are different from each other. 4. The magnetic attraction device includes a first magnet group, which is provided on one of a cartridge mounting portion of the housing and a cartridge, and has a plurality of permanent magnets arranged so that different magnetic poles are arranged, A second magnet group provided on the other so as to face the first magnet group and having a plurality of permanent magnets arranged so that different magnetic poles are arranged side by side; and the first magnet group and the second magnet group 2. The cartridge type coating apparatus according to claim 1, wherein the permanent magnets are arranged so that the magnetic poles of the facing permanent magnets are different from each other. 5. The cartridge type according to claim 1, wherein the housing is provided with a removal air supply passage for supplying removal air for removing the cartridge from the cartridge mounting portion between the cartridge mounting portion and the cartridge. Coating equipment. 6. The cartridge mounting portion is formed as a bottomed hole having a bottom surface, and the cartridge has a cylindrical cylinder for storing paint therein and a feed tube extending axially from the front surface side of the cylinder. And a removal air space in which removal air is introduced from the removal air supply passage by abutting the other surface on one of the bottom surface of the cartridge mounting portion and the front surface of the cylinder. The cartridge-type coating apparatus according to claim 5, further comprising a sealing member that 7. The method according to claim 2, wherein the permanent magnet is provided with a convex portion or a concave portion, and the magnetic body facing the permanent magnet is provided with a concave portion or a convex portion that fits into the convex portion or the concave portion. Cartridge type coating device. 8. The method according to claim 3, wherein the permanent magnet is provided with a convex portion or a concave portion, and the permanent magnet facing the permanent magnet is provided with a concave portion or a convex portion that fits into the convex portion or the concave portion. Cartridge type coating device. 9. The magnetic attraction device comprises an electromagnet provided on one of a cartridge mounting portion of the housing and a cartridge, and a magnetic body provided on the other so as to face the electromagnet. The cartridge type coating apparatus according to claim 1, wherein