JP2014100644A - Spray gun - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spray gun capable of attaching a first direction of a gun body to a manifold without play.SOLUTION: A spray gun 10 to which a gun body 40 spraying a coating material in a first direction (x direction) and a manifold 20 supporting the gun body 40 are detachably attached, includes: a protrusion part 76 which is formed on one side (α) of the contact part of the gun body 40 and the manifold 20 and is extended in the first direction; a recessed part 74 which is fitted to the protrusion part 76, formed on the other side (β) of the contact part of the gun body 40 and the manifold 20, and is extended in the first direction; and taper faces 76Q which are formed on each of side wall faces extended in the first direction of the protrusion part 76 and whose widths become narrower in a height direction; and taper faces 74P which are formed on each of side wall faces extended in the first direction of the recessed part 74 and whose widths become narrower in a depth direction.

Description

  The present invention relates to a spray gun, and more particularly to a spray gun including a manifold and a gun body that is detachably attached to the manifold.

  For example, an automatic spray gun used by being attached to a painting robot or the like includes a manifold and a gun body that is detachably attached to the manifold (see Patent Document 1).

  Such a spray gun is attached to the painting robot by inserting a stay of the painting robot into a through-hole formed in the manifold and fixing the manifold to the stay. In this case, a plurality of spray guns can be attached to the painting robot by inserting a plurality of spray guns through the stay.

  The manifold includes a paint supply port for supplying paint from the outside, a paint flow path for guiding paint from the paint supply port to the gun body side, an air supply port for supplying air from the outside, and an air from the air supply port And an air flow path for guiding the gas to the gun body side.

  The paint flow path is also formed with a flow path for returning the paint from the paint supply port to, for example, the paint discharge port formed in the manifold after the paint is circulated in the manifold. When the target specific gravity is large, it is possible to avoid sedimentation and clogging of the flow path (see Patent Document 2).

  In addition, the gun body sends an air flow to the paint flow through a paint nozzle for ejecting a paint flow from the tip of the barrel and a slit (annular slit) formed between the paint nozzle and the outer periphery of the paint nozzle. An air cap to be sprayed, a paint flow path for guiding the paint from the manifold to the paint nozzle side, and an air flow path for guiding the air from the manifold to the air cap side are configured.

  The gun body and the manifold are detachably attached by screws (bolts) screwed through the contact portions. The reason why the gun body is configured to be detachably attached to the manifold in this way is, for example, to clean the gun body separately from the manifold.

JP 2003-340322 A Japanese Patent Laid-Open No. 10-392

However, in the spray gun described above, the gun body is attached to the manifold by a screw that is screwed through the contact portion between the gun body and the manifold. There is a problem that it is difficult to determine the barrel direction of the gun body with respect to the manifold (hereinafter sometimes referred to as the first direction in this specification) without rattling.
FIG. 7A is a view showing a case where the spray gun 10 is fixed to the manifold 20 using only the screws 27. The spray gun 10 is in a range where the barrel direction of the spray gun 10 is about 20 ° with respect to the manifold 20. FIG. It is confirmed that there is a backlash that causes rotation.

In this case, a positioning pin is formed at a position close to the screw and in a contact portion between the gun body and the manifold, and a hole into which the positioning pin is inserted is formed at a contact portion between the manifold and the gun body. As a result, the above-mentioned inconvenience is attempted to be solved, but play with respect to the hole of the positioning pin occurs, which is still not sufficient.
FIG. 7B is a diagram in which the positioning pin 30 is provided in the configuration shown in FIG. 7A, but the spray gun 10 is rotated with respect to the manifold 20 in a range where the barrel direction is about 13 °. It is confirmed that there is a rattling as is done.

  The manifold is attached to the stay by, for example, a screw that is screwed into the manifold and presses the stay from a direction that intersects the longitudinal direction of the stay. As a result, the manifold is slightly rotated around the stay, which causes a disadvantage that it is difficult to determine the first direction of the manifold, and thus the gun body, relative to the stay without rattling.

  This invention is made | formed in view of such a situation, The objective is to provide the spray gun which can attach the 1st direction of a gun main body with respect to a manifold without backlash.

  Another object of the present invention is to provide a spray gun capable of attaching the first direction of the gun body to the stay for fixing the manifold without rattling.

  In order to achieve such an object, according to the present invention, first, in the contact portion of the manifold with the gun body, for example, a recess extending in the first direction of the gun body is provided, and In the contact part, a convex part extending in the first direction is provided.

  The convex portion has a tapered surface that narrows the width in the height direction on each side wall surface extending in the first direction, and the concave portion has a depth on each side wall surface extending in the first direction. The present invention is configured to have a tapered surface that narrows the width in the direction.

The spray gun configured as described above can match the first direction of the gun body with respect to the manifold with the extending direction of the concave portion and the convex portion with considerable accuracy. Therefore, the first direction of the gun body can be attached to the manifold without rattling. The manifold inserted through the stay is formed at an angle with respect to a plane perpendicular to the axial direction at the stay. The slant surface (first slant surface) and the slant surface (second slant surface) formed at substantially the same angle as the first slant surface in the manifold are in surface contact so that the stay is fixed. It is a thing.

  The spray gun configured in this way can suppress the rotation of the manifold around the stay with sufficient accuracy to ensure the required performance. The first direction can be attached without rattling.

The present invention is grasped by the following composition.
(1) The spray gun of the present invention is detachable by a screw in which a gun main body that ejects paint in a first direction and a manifold that supports the gun main body are screwed through the contact portion. A spray gun to be attached, which is formed on one of the abutting portions of the gun main body and the manifold and extends in the first direction; and the gun main body and the manifold fitted into the convex portion A concave portion formed on the other of the contact portions and extending in the first direction, and a tapered surface formed on each side wall surface of the convex portion extending in the first direction and narrowing the width in the height direction. And a tapered surface that is formed on each side wall surface extending in the first direction of the recess and narrows in the depth direction.
(2) In the spray gun of the present invention, in the configuration of (1), the manifold includes a paint supply port for supplying paint from the outside, and a first paint flow for guiding the paint from the paint supply port to the gun body side. A passage, an air supply port for supplying air from the outside, and a first air flow path for guiding air from the air supply port to the gun body side. A paint nozzle that ejects the paint, an air cap that is disposed on an outer periphery of the paint nozzle and that is formed between the paint nozzle and injects an air flow into the paint flow, and paint from the manifold is applied to the paint nozzle side And a second air flow path for guiding the air from the manifold to the air cap side.
(3) In the spray gun of the present invention, in the configuration of (1), the manifold is supported with respect to the stay by inserting the stay into a hole formed in the manifold, and the stay has a shaft thereof. A first inclined surface having an angle with respect to a plane perpendicular to the direction is formed, and a second inclined surface formed at the same angle as the first inclined surface is formed on the manifold inserted through the stay, The stay is fixed in a state where the first slope and the second slope are in surface contact with each other.
(4) In the configuration of (3), the spray gun of the present invention has a plurality of the manifolds inserted through the stay, and one of the manifolds adjacent to each other has a surface perpendicular to the axial direction of the stay. A third inclined surface having an angle is formed, and the other manifold is formed with a fourth inclined surface formed at substantially the same angle as the third inclined surface, and each manifold is fixed to the stay by the third inclined surface. And the fourth slope is in surface contact with each other.

  The spray gun configured in this way can be attached to the manifold without rattling in the first direction of the gun body.

  In addition, the first direction of the gun body can be attached to the stay for fixing the manifold without backlash.

(A), (b) is a schematic explanatory drawing explaining the principal part of the spray gun of this invention. (A), (b) is a block diagram which shows the external appearance of the spray gun of this invention. 2A is a cross-sectional view taken along line III (a) -III (a) in FIG. 2 (XZ-direction cross section), and FIG. 3B is a cross-sectional view taken along line bb in FIG. Cross section). In the spray gun of the present invention, it is a perspective view showing a state where the gun body is detached from the manifold. It is the figure which looked at the gun body from the contact part side with a manifold. It is a block diagram which shows the case where a some spray gun is fixed to the stay of a painting robot. It is explanatory drawing which showed the effect of the spray gun of this invention compared with the conventional spray gun.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described in detail with reference to the accompanying drawings. Note that the same number is assigned to the same element throughout the description of the embodiment.
(Embodiment 1)
2A and 2B are configuration diagrams showing the appearance of the spray gun of the present invention. 2A is a perspective view of the spray gun 10 viewed from the front side, and FIG. 2B is a perspective view of the spray gun 10 viewed from the rear side.

  In the figure, the x direction corresponds to the front-rear direction of the spray gun 10, the y direction in the figure corresponds to the width direction of the spray gun 10, and the z direction in the figure corresponds to the height direction of the spray gun 10.

  First, as shown in FIGS. 2A and 2B, the spray gun 10 includes a manifold 20 and a gun body 40 that is detachably attached to the manifold 20. In the manifold 20, a stay (indicated by reference numeral 80 in FIG. 6) provided in a painting robot (not shown) is inserted into a through-hole 70 formed so as to penetrate in the y direction in the drawing, and is fixed to the stay. Thus, it can be attached to the painting robot.

  As shown in FIG. 2 (a), the gun body 40 has a paint nozzle 41 for ejecting a paint flow to the tip of a barrel extending in the x direction (sometimes referred to as the first direction in this specification). An air cap 42 is provided so as to surround the tip of the paint nozzle 41. An annular slit 42 </ b> A for injecting an air flow is formed between the inner peripheral surface of the air cap 42 and the outer peripheral surface of the tip portion of the paint nozzle 41. Thereby, the paint flow from the paint nozzle 41 is atomized by the air flow from the annular slit 42A. In addition, a pair of corner portions 43 are formed on the front surface of the air cap 42 in the vertical direction (z direction in the figure) with the paint nozzle 41 interposed therebetween, and air holes ( 3 (a) is provided, and air is ejected so as to intersect the paint flow from the paint nozzle 41. Thereby, the paint flow coming out of the paint nozzle 41 can be made into an elliptical spray pattern, for example.

  2B, the manifold 20 includes a paint supply port 21 and a paint discharge port 22, guides the paint supplied to the paint supply port 21 to the paint nozzle 41, and circulates in the manifold 20. Then, the paint is discharged to the paint discharge port 22. As a result, when a relatively heavy pigment, aggregate or metallic high-design paint is used as the paint, for example, the pigment, aggregate or metallic high-design paint is applied to the flow path in the manifold 20. It is possible to avoid sedimentation and clogging. Further, the manifold 20 has an operating air supply port 23 for supplying operating air for turning ON / OFF the spraying of the paint from the paint nozzle 41, an atomizing air supply port 24 for supplying the air jetted from the annular slit 42A, And the pattern air supply port 25 which supplies the air which blows off from the air hole of a corner | angular part is formed.

  2B, a knob 44 is attached to the rear portion of the gun body 40, and the amount of paint sprayed from the paint nozzle 41 is adjusted by rotating the knob 44. As shown in FIG. Can be done.

  Further, in FIG. 2A, a pipe 71 is added to the paint supply port 21, the paint discharge port 22, the working air supply port 23, the atomizing air supply port 24, and the pattern air supply port 25 shown in FIG. The attached state is shown.

  The gun body 40 is detachably attached to the manifold 20 and, as will be described later with reference to FIG. 4, by loosening a screw (bolt) 27 attached to the lower surface of the manifold 20, The main body 40 can be detached from the manifold 20.

  Fig.3 (a) is the schematic diagram which showed the cross section in the III (a) -III (a) line | wire of Fig.2 (a). Moreover, FIG.3 (b) has shown sectional drawing in the bb line of Fig.3 (a).

  Note that the operating air supply port 23, the atomizing air supply port 24, and the pattern air supply port 25 formed in the manifold 20 shown in FIG. It is drawn differently from the arrangement shown in.

  In FIG. 3A, there is a paint nozzle 41 whose diameter decreases as it approaches the tip at the center of the tip of the gun body 40, and the paint nozzle 41 has a paint flow passage 29 formed in the gun body 40 at the rear end. (It may be called a 1st coating material flow path in this specification.). The paint channel 29 is connected to the paint supply port 21 of the manifold 20 and communicated with a paint channel 29 ′ (sometimes referred to as a second paint channel in this specification) formed in the gun body 10. ing. As a result, the paint supplied from the paint supply port 21 is introduced into the paint nozzle 41 through the paint flow path 29 in the manifold 20 and the paint flow path 29 ′ in the gun body 40.

  Here, the paint flow path 29 is branched from the first flow path 29A in the manifold 20 so that the paint supply port 21 and the paint discharge port 22 are connected to circulate the paint. The second flow path 29B from the manifold 20 side to the gun body 40 side to the paint nozzle 41 is configured. FIG. 3B shows that in the manifold 20, the paint supply port 21 and the paint discharge port 22 communicate with each other via the first flow path 29 </ b> A. By configuring the paint flow path 29 in this way, the paint can be circulated always in the first flow path 29A, and as a paint, a pigment having a relatively heavy specific gravity, an aggregate, a metallic high-design paint, etc. When used, it is possible to avoid the occurrence of clogging in the flow path due to precipitation of the pigment, aggregate and metallic high-design paint. Further, at this time, the paint circulation passage in the manifold shown in FIG. 3B may be extended into the gun body to communicate the gun body from the manifold to form a circulation path.

  The paint nozzle 41 incorporates a needle valve 45 coaxially with the paint nozzle 41, and the rear end of the needle valve 45 is connected to a paint valve opening / closing mechanism 47. The paint valve opening / closing mechanism 47 shifts the needle valve 45 urged toward the tip end side of the paint nozzle 41 by a spring (not shown) to the paint valve opening / closing mechanism 47 side by supplying air from the operating air supply port 23. It has become. As a result, the tip of the paint nozzle 41 blocked by the needle valve 45 is opened, and the paint in the paint nozzle 41 is ejected from the tip of the paint nozzle 41.

As the paint is ejected from the paint nozzle 41, the air ejected from the annular slit 42A between the paint nozzle 41 and the air cap 42 is atomized connected to the atomizing air supply port 24 on the manifold 20 side. The air passage 24A is introduced through an atomizing air passage 24A 'on the gun body 40 side that communicates with the atomizing air passage 24A. In addition, the air ejected from the air holes of the corner (one) portion 43 of the air cap 42 is communicated with the pattern air flow path 25A connected to the pattern air supply port 25 on the manifold 20 side and the pattern air flow path 25A. It is introduced via the pattern air flow path 25A ′ on the gun body 40 side. The air supplied to the paint valve opening / closing mechanism 47 is a working air flow path 23A connected to the working air supply port 23 on the manifold 20 side, and a working air on the gun body 40 side connected to the working air flow path 23A. It is introduced via the flow path 23A ′.
As shown in FIG. 4, the spray gun 10 configured in this way can detach the gun body 40 from the manifold 20.

  As shown in FIG. 4, the gun body 40 is attached to the manifold 20 by screwing the tip of a screw (bolt) 27 inserted through the bolt insertion hole 28 from the lower surface of the manifold 20 into the gun body 40. ing. FIG. 5 is a view of the gun body 40 as viewed from the lower surface side, and a screw hole 28 ′ into which the tip of the screw (bolt) 27 is screwed is formed on the lower surface of the gun body 40.

  The gun body 40 can be detached from the manifold 20 by loosening a screw (bolt) 27 and removing its tip from the gun body 40.

  As shown in FIG. 4, the contact portion α of the manifold 20 with the gun body 40 is supplied from the paint supply port 21 of the manifold 20 in addition to the bolt insertion hole 28 of the screw (bolt) 27. A paint flow path 29 that guides the paint to the gun body 40 side, and an air flow path (operating air flow path 23A, mist) that leads the air (air) supplied from the air supply port of the manifold 20 to the gun body 40 side. Air flow path 24A and pattern air flow path 25A) are provided. In this specification, the atomizing air flow path may be referred to as a first air flow path.

  Here, the contact portion α of the manifold 20 is formed with a recess 74 extending in the x direction (first direction) in the drawing. The recess 74 has side wall surfaces 74P on both sides in the left-right direction (y direction in the figure), and the bolt insertion hole 28, the paint channel 29, the working air channel 23A, the atomizing air channel described above on the bottom surface thereof. 24A and the pattern air flow path 25A are formed. In this specification, the atomizing air flow path 24A 'may be referred to as a second air flow path.

  On the other hand, as shown in FIG. 5, the contact portion β of the gun body 40 with the manifold 20 communicates with a paint flow path 29 on the manifold 20 side in addition to the screw hole 28 ′ of the screw (bolt) 27. An air flow path (operating air flow path 23A ′, atomizing air flow path 24A ′, pattern air flow path 25A ′) communicated with the paint flow path 29 and the air flow path on the manifold 20 side is provided.

  Here, the contact portion α of the gun body 40 is formed with a convex portion 76 extending in the x direction (first direction) in the drawing. The convex portion 76 has side wall surfaces 76Q on both sides in the left-right direction (y direction in the figure), and the screw holes 28 ', the paint flow channel 29, the working air flow channel 23A', and the atomized air are formed on the top surface. A flow path 24A ′ and a pattern air flow path 25A ′ are formed.

  FIGS. 1A and 1B are schematic explanatory views showing the positional relationship between the side wall surface 74P of the concave portion 74 of the manifold 20 and the side wall surface 76Q of the convex portion 76 of the gun body 40. FIG.

  FIG. 1A shows that the gun body 40 is attached to the manifold 20 with screws (bolts) 27. As is clear from FIG. 1A, the gun body 40 is mounted on the manifold 20 with the protrusions 76 formed on the gun body 40 fitted in the recesses 74 formed on the manifold 20. Yes. In this case, the side wall surface 74P of the concave portion 74 of the manifold 20 is formed as a tapered surface that narrows the width in the depth direction of the concave portion 74, and the side wall surface 76Q of the convex portion 76 of the gun body 40 is the side wall surface of the convex portion 76. 76Q is formed as a taper surface which narrows the width in the height direction of the convex portion 76. The side wall surfaces 74P and 76Q have the same inclination angle. For this reason, the side wall surface 74P of the concave portion 74 of the manifold 20 and the side wall surface 76Q of the convex portion 76 of the gun body 40 are brought into contact with each other by surface contact. FIG. 1B shows a case where the screw (bolt) 27 is removed and the gun body 40 is detached from the manifold 20.

  The spray gun 10 configured in this manner is seated and disposed at a position where the convex portion 76 of the gun body 40 should be located with respect to the concave portion 74 of the manifold 20. Thereby, the barrel direction (x direction: first direction in the figure) of the gun body 40 with respect to the manifold 20 matches the extending direction of the concave portion 74 and the convex portion 76 with sufficient accuracy to ensure the required performance. To be able to. For this reason, the barrel direction of the gun body 40 can be attached to the manifold 20 without rattling.

  FIGS. 6A and 6B show a configuration in which, for example, three spray guns 10 configured as described above are attached to, for example, three stays 80 provided in a painting robot (not shown). FIG.

  The stay 80 is composed of a linearly extending shaft body, the first shaft body portion 80A having a large diameter on the painting robot side, and the second shaft body having a smaller diameter than the first shaft body portion 80A on the distal end side. Part 80B.

  Here, the side surface on the first shaft body portion 80A side in the step portion of the first shaft body portion 80A and the second shaft body portion 80B is inclined, for example, toward the first shaft body portion 80A with respect to the surface perpendicular to the axial direction. It is formed as an inclined surface 80S having an angle γ (sometimes referred to as a first inclined surface in this specification). The inclined surface 80S is formed, for example, by a plane extending in the x direction in the drawing.

  For example, three manifolds 20 (the gun body 40 is not yet attached) of the spray gun 10 are inserted in parallel in the second shaft body portion 80B of the stay 80, whereby the manifold 20 is supported by the stay 80. It has come to be. The stay 80 is inserted into the through hole 70 formed in the manifold 20 so that the manifold 20 is inserted into the stay 80.

  In FIG. 6 (a), the second shaft body portion 80B of the stay 80 is shown with its most distal end portion broken away in order to avoid obscuring the drawing. On the other hand, in FIG. 6B, the second shaft body portion 80B is drawn without breaking.

  In this case, in each manifold 20, the peripheral edge of the through hole 70 on the side surface of the stay 80 on the first shaft body portion 80A side is substantially the same angle as the inclined surface 80S of the first shaft body portion 80A (the axial direction of the stay 80). The inclined surface 20S formed with respect to the surface orthogonal to the inclined surface 20S is formed, and the peripheral edge of the through hole 70 on the side surface opposite to the first shaft body portion 80A of the stay 80 is substantially at the same angle as the inclined surface 20S. An inclined surface 20S ′ formed (with respect to a surface orthogonal to the axial direction of the stay 80) is formed.

  6A, the inclined surface 80S of the first shaft body portion 80A, the inclined surface 20S of each manifold 20 on the first shaft body portion 80A side, and the opposite side of the first shaft body portion 80A of each manifold 20 from each other. All of the inclined surfaces 20S ′ have substantially the same angle. However, it is not limited to this. That is, the inclined surface 20S of the manifold 20 that is in surface contact with the inclined surface 80S of the first shaft body portion 80A (sometimes referred to as a first inclined surface in this specification) may be referred to as a second inclined surface in this specification. ) Should be almost the same angle. Then, in relation to the manifolds 20 adjacent to each other, an inclined surface 20S ′ (sometimes referred to as a third inclined surface in this specification) on one side of the other manifold 20 and one of the other manifolds 20 is provided. The inclined surface 20S on the side of the manifold 20 (which may be referred to as a fourth inclined surface in this specification) should be substantially at the same angle.

After the plurality of manifolds 20 are inserted through the second shaft body portion 80B of the stay 80 in this way, the nuts 81 are screwed into the distal ends of the second shaft body portions 80B, and each manifold 20 is connected to the second shaft body portion 80B. The nut 81 is tightened so that the uniaxial body portion 80A and the nut 81 are in contact with each other. In this case, the manifold 20 adjacent to the first shaft body portion 80A of the stay 80 has its inclined surface 20S ′ in surface contact with the inclined surface 80S of the first shaft body portion 80A, and each manifold 20 is connected to the first shaft body portion. The inclined surface 20S ′ opposite to 80A comes into surface contact with the inclined surface 20S on the first shaft body portion 80A side of the manifold 20 adjacent to the opposite side to the first shaft body portion 80A. As a result, the rotation of the manifold 20 around the stay 80 due to the tightening force applied to the wedge-shaped inclined surface acting between the inclined surfaces 20S ′ and 20S in surface contact can be suppressed with sufficient accuracy. .
FIG. 7C is a diagram showing a case where the spray gun 10 and the manifold 20 are configured as in the present embodiment, and the spray gun 10 is fixed to the manifold 20 using screws 27. On the other hand, it can be confirmed that the spray gun 10 can be rotated only within the range of the barrel direction of about 0.29 °.

  Thereafter, as shown in FIG. 6B, the gun body 40 is attached to each of the manifolds 20. The mounting in this case is performed by a screw (bolt) 27 (see FIG. 4) (not shown).

  Then, a fixing bolt 90 is screwed from the outside of the manifold 20 in a direction intersecting the second shaft body portion 80B of the stay 80, and the second shaft body portion 80B is pressed by the fixing bolt 90, whereby the manifold Twenty stays 80 are fixed.

According to such a configuration, the rotation of the manifold 20 around the stay 80 can be suppressed with sufficient accuracy to ensure the required performance, and with respect to the stay 80 that fixes the manifold 20. It becomes possible to attach the gun body 40 in the x direction (first direction) in the figure without rattling.
(Embodiment 2)
In the first embodiment, the case where a plurality of spray guns 10 are arranged and fixed on the stay 80 is described as an example. However, the present invention is not limited to this, and it goes without saying that one spray gun 10 may be fixed to the stay 80.
(Embodiment 3)
In the first embodiment, the concave portion 74 is formed in the contact portion α of the manifold 20 with the gun body 40, and the convex portion 76 is formed in the contact portion β of the gun body 40 with the manifold 20. However, the present invention is not limited to this, and a convex portion is formed at the contact portion α of the manifold 20 with the gun body 40 and a concave portion is formed at the contact portion β of the gun body 40 with the manifold 20. It goes without saying.

  As mentioned above, although this invention was demonstrated using embodiment, it cannot be overemphasized that the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiments. Further, it is apparent from the description of the scope of claims that embodiments with such changes or improvements can also be included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Spray gun, 20 ... Manifold, 20S ... Inclined surface, 20S '... Inclined surface, 21 ... Paint supply port, 22 ... Paint discharge port, 23 ... Working air supply port, 24, 24' ... Atomization air supply port, 25 ... Pattern air supply port, 25A, 25A '... Pattern air flow path, 27 ... Screw (bolt), 28 ... Bolt insertion hole, 28' ... Screw hole, 29 ...... Paint channel, 29A ... First channel, 29B ... Second channel, 30 ... Positioning pin, 40 ... Gun body, 41 ... Paint nozzle, 42 ... Air cap, 42A ... Ring Slit, 43 ...... Square part, 44 ... Knob, 45 ... Needle valve, 47 ... Paint valve opening / closing mechanism, 70 ... Through hole, 71 ... Pipe, 74 ... Recess, 74P ... Side Wall surface, 76 ... convex, 76Q ... side wall surface, 80 ... stay, 80A ... First shaft body part, 80B... Second shaft body part, 80S... Inclined surface (first slope), 81... Nut, 90.

Claims (4)

A spray gun in which a gun body that ejects paint in a first direction and a manifold that supports the gun body are detachably attached by screws that are threaded through the abutting portions;
A convex portion formed on one of the abutment portion of the gun body and the manifold and extending in the first direction;
A concave portion that is fitted to the convex portion and formed in the other of the abutment portion of the gun body and the manifold and extends in the first direction;
A taper surface formed on each side wall surface extending in the first direction of the convex portion and narrowing the width in the height direction;
A spray gun comprising: a tapered surface formed on each side wall surface of the recess extending in the first direction and having a width narrowed in the depth direction. The manifold includes a paint supply port for supplying paint from the outside, a first paint channel for guiding paint from the paint supply port to the gun body side, an air supply port for supplying air from the outside, and the air supply A first air flow path for guiding air from the mouth to the gun body side,
The gun body includes a paint nozzle that ejects a paint flow from the tip of a barrel, and an air cap that is disposed on an outer periphery of the paint nozzle and that injects an air flow into the paint flow through a slit formed between the paint nozzle and 2. A second paint flow path for guiding paint from the manifold to the paint nozzle side, and a second air flow path for guiding air from the manifold to the air cap side. The spray gun described. The manifold is supported with respect to the stay by inserting the stay into a through-hole formed in the manifold,
The stay is formed with a first slope having an angle with respect to a plane perpendicular to the axial direction thereof, and the manifold inserted through the stay has a second slope formed at substantially the same angle as the first slope. A slope is formed,
The spray gun according to claim 1, wherein the manifold is fixed to the stay in a state where the first slope and the second slope are in surface contact. The manifold inserted into the stay has a plurality of manifolds, one manifold adjacent to each other is formed with a third inclined surface having an angle with respect to a plane perpendicular to the axial direction of the stay, and the other manifold has A fourth slope formed at substantially the same angle as the third slope,
The spray gun according to claim 3, wherein the manifold is fixed to the stay in a state where the third slope and the fourth slope are in surface contact with each other.

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