JPH073749U - Paint gun cleaning equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To stabilize the posture of the cup, to concentrate the thinner inside the gun through the paint suction hole, and to make the thinner hit the gun nozzle efficiently. [Structure] A replaceable extension pipe 13 (14) is inserted between a nozzle portion 11 that ejects a thinner 5 and a support portion 12 that supports the nozzle portion 11. In addition, the nozzle unit 1
1. Either of the nozzle support portion 12 and the nozzle support portion 12 can be replaced with one having a different length. Further, the support portion 12 has an expandable structure. Furthermore, the extension pipe of the cleaning nozzle facing the nozzle of the gun is made of a flexible pipe.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a paint gun cleaning device for removing a previously used paint from a spray gun after using a spray gun for painting in a factory or a construction site or before changing paint. Is.

[0002]

[Prior art]

An example of a conventional cleaning device for a coating gun of this type is shown in a sectional view of FIG. 5 (a front view taken along line BB of FIG. 6) and a sectional view of FIG. 6 (cut along line AA of FIG. 5). (Plan view). In FIGS. 5 and 6, 1 is a case of the apparatus, 2 is a porous partition plate which vertically separates the cleaning chamber and the cleaning liquid (thinner) feed drive unit, and 3 passes through the partition plate 2 during the cleaning operation. A funnel-shaped thinner receiving portion 5 for collecting the thinner and returning it to the thinner can 4 is a thinner. J _{1 to} J ₁₄ are jet nozzles for ejecting thinner from the jet outlets at the tip, and 10 is a cleaning liquid distribution / supply unit for distributing and supplying thinner to the jet nozzles J _{1 to} J ₁₄ . Reference numeral 8 is a pump for sending the thinner to the jet nozzle.

When compressed air is supplied from the outside through the pipe 7, the pump 8 sucks up the thinner 5 through the pipe 6 and strongly sends it through the pipe 9 to the cleaning liquid distribution / supply unit 10. Then, the thinner is ejected from each jet nozzle J _{1 to} J ₁₄ through the hollow portion in the cleaning liquid distribution and supply section 10. FIG. 7 is an explanatory view showing the arrangement of general jet nozzles J _{1 to} J ₁₄ . When cleaning a gun that installs a cup to put paint on the upper side of the painting gun (hereinafter referred to as the upper cup type gun) with the cup attached, usually use the jet nozzles J ₃ , J ₄ or J ₇ , J Put the cup on any of ₈ and place it on the perforated plate 2 of the partition. The cup lid is then placed over J ₁₁ or J ₁₄ for cleaning. The jet nozzles J ₃ and J ₇ are tip-projecting nozzles whose tips are narrowed and extended, while other jet nozzles are nozzles which eject thinner from small holes in a flat-headed head. In addition, the thinner jetting directions of J _1, J _2, J _5, J _6, J _9, J _10, J _12, J ₁₃ are all lateral (inward) toward the center, and J ₃ , J ₄ , J ₇ , J ₈ , J ₁₁ , J ₁₄ are facing upward.

[0004]

[Problems to be solved by the device]

However, in the conventional coating gun cleaning device, when cleaning the upper cup type gun with the cup still attached, the cup is attached to either the jet nozzle J ₃ , J ₄ or J ₇ , J _8. Although the jet nozzles J ₃ and J ₇ are projecting nozzles, the cup (and hence the gun) is not stable. This has the disadvantage that the thinner jet does not enter the paint passage in the gun well. In order to avoid this drawback, it was necessary to remove the connecting parts of each part and disassemble as much as possible. Although the tip of the jet nozzle is an important part, the nozzle J ₁ blowing thinner from the _{outside, J 2, J 5, J} 6, J 9, J 10, J 12, J 13 Any wash liquid dispensed Since it is fixed to the supply unit 10, there is a drawback that the nozzle of the gun does not hit the thinner jet well.

The object of the present invention is to eliminate such a drawback, to extend the tip of a jet nozzle of a front-end type by an extension pipe, and to wash the upper cup type gun while cleaning the cup with the cup attached. It is an object of the present invention to provide a cleaning device for a coating gun that can stabilize the disposition of the cup at the optimum position by facing the coating material suction hole. Another object of the present invention is to provide a cleaning device for a painting gun, in which a flexible pipe is inserted between a jet nozzle and its supporting portion to selectively target and clean an important part such as the tip of the gun nozzle. It is to be.

[0006]

Means for Solving the Problems In order to achieve the above-mentioned object, a first solution means of a coating gun cleaning device of the present invention is to clean a gun 21 for spraying a coating surface with a coating material. In the cleaning device, a replaceable extension pipe 13 (or 14) is inserted between the cleaning nozzle portion 11 that ejects the cleaning liquid 5 and the nozzle support portion 12 that supports the cleaning nozzle portion 11. Configure. Further, in the second solving means, the cleaning nozzle portion 11 for ejecting the cleaning liquid 5 or the nozzle supporting portion 12 for supporting the cleaning nozzle portion 11 can be replaced with the same type having different lengths. To configure. Further, in the third solving means, the support portion 12 of the cleaning nozzle portion for ejecting the cleaning liquid 5 has a structure capable of expanding and contracting. Still further, in a fourth solution means, the extension pipe is configured by using a flexible pipe 43 so that the pipe tip direction can be freely changed.

[0007]

[Action]

 According to the present invention, when cleaning with the cup attached to the painting gun, an extension pipe is inserted between the nozzle for jetting the cleaning liquid (jet nozzle) and its support, or the jet nozzle or its You can stabilize the posture of the cup by replacing the support with one with a different length or by extending the extendable support so that the tip of the jet nozzle is inserted into the paint suction hole of the cup. In addition to being able to do so, it is possible to efficiently concentrate the spraying thinner inside the gun through the cup paint suction hole. Also, if a lateral (inward) jet nozzle that ejects thinner for cleaning from the outside of the gun is supported via a flexible pipe, the tip of the jet nozzle will be positioned close to and close to the nozzle of the gun. Therefore, the nozzle part of the gun can be cleaned accurately and efficiently.

[0008]

【Example】

 Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view (partial view) of a partial cross section showing a main part of an embodiment for achieving one object of the present invention and its usage. FIG. 2 is an exploded front view of the main part of FIG. In FIG. 1, 2 is equivalent to the intermediate partition plate shown in the conventional example of FIG. 5, and 10 is a cleaning liquid distribution / supply unit for distributing and supplying thinner to each jet nozzle. Reference numeral 20 is an object to be cleaned in a state where a cup 22 for putting paint is still attached to the gun 21.

In FIG. 1 and FIG. 2, reference numeral 11 denotes a jet nozzle (protruding nozzle) that strongly blows thinner from an opening at the tip. Reference numeral 12 denotes a nozzle support portion fixed to the cleaning liquid distribution / supply portion 10. Reference numeral 13 is a replaceable extension pipe that is inserted between the jet nozzle 11 and the nozzle support portion 12. Reference numeral 15 is a flat-head jet nozzle. The positions of the jet nozzles 11 and 15 correspond to the positions of the jet nozzles J ₃ and J ₄ or J ₇ and J ₈ in FIG.

When cleaning the upper cup type gun 21 with the cup 22 attached, as shown in FIG. 1, cover the jet nozzles 11 and 15 with the cup 22 turned upside down. And place it on the partition plate 2. At this time, replace the jet nozzle 11 with an extension pipe of an appropriate length so that the tip of the jet nozzle 11 is exactly applied to the paint suction hole inside the cup 22, as shown in the figure. Keep it. In this way, the tip of the jet nozzle 11 sticks into the paint suction hole at the bottom of the cup 22, the cup 22 is almost upright, and the periphery of the opening is in contact with the partition plate 2 in a flat manner to be cleaned. The whole thing can be stabilized. The thinner ejected from the jet nozzle 11 cleans the entire paint passage through the tip of the nozzle 24 of the gun 21, and the thinner ejected from the jet nozzle 15 cleans the inner surface of the cup 22.

FIG. 3 is a front view with a partial cross section and a partial omission showing a method of cleaning a gun that sucks paint from the lower side of the gun and ejects it from a nozzle (hereinafter referred to as a lower cup type gun) without disassembling it. It is explanatory drawing shown in the figure. In FIG. 3, reference numeral 2 is a partition plate, and 10 is a cleaning liquid distribution / supply unit. Reference numeral 11 is a jet nozzle, 12 is a nozzle support portion, and 13 is an extension pipe. Reference numeral 30 is an object to be cleaned with the paint suction part 32 attached to the gun 31, and 33 is a pipe for sucking up and supplying the paint to the gun 31. In the case of FIG. 3, the extension pipe 14 is short and the tip of the jet nozzle 11 is fitted into the inlet of the pipe 33 to fix the object to be cleaned. The thinner ejected from the jet nozzle 11 cleans the entire paint passage of the gun 31 up to the tip of the nozzle (not shown), and the thinner ejected from the jet nozzle 15 is the lower surface of the paint suction part 32 (pipe). (Including the outside of 33).

In the embodiment shown in FIGS. 1 to 3, an extension pipe having an appropriate length is inserted between the jet nozzle for jetting the cleaning liquid and its supporting portion to adjust the tip position of the jet nozzle. In order to achieve such an object, although not shown, either the jet nozzle or its supporting portion may be replaced with one having a different length, or the structure of the nozzle supporting portion may be changed. The structure may be stretchable (for example, a pipe having a concentric double structure that can be slid and locked).

FIG. 4 is an explanatory view showing a front view with a part omitted, of a main part provided in one embodiment in order to achieve another object of the present invention. In FIG. 4, reference numeral 2 is a partition plate, and 10 is a cleaning liquid distribution / supply unit. Reference numeral 41 is a jet nozzle, 42 is a nozzle support portion, and 43 is an extension pipe constituted by a flexible pipe so that thinner is concentrated on the nozzle of the gun, which is an important cleaning portion, from the jet nozzle 41. Reference numerals 44 and 45 are jet nozzles facing sideways (inward). By changing the shape of the flexible extension pipe 43, the jet nozzle 41 can concentrate the thinner sprayed to the nozzle of the gun of the object to be cleaned or other heavily contaminated parts.

[0014]

[Effect of the Invention] As described in detail above, the present invention inserts an extension pipe between the cleaning liquid ejecting nozzle (jet nozzle) and its supporting portion when cleaning with the cup attached to the painting gun. Or by replacing either the jet nozzle and its support with a different length, or by extending the support that has a retractable structure, the jet nozzle is inserted into the paint suction hole of the cup. Since it can be placed so that the tip of the cup can be inserted, the posture of the cup can be stabilized and the spraying thinner can be efficiently concentrated inside the gun through the cup paint suction hole. Also, by supporting a lateral (inward) jet nozzle that ejects thinner for cleaning from the outside of the gun through a flexible pipe, the nozzle tip should be placed close to the nozzle of the gun. As a result, it is possible to accurately and efficiently clean the nozzle portion of the gun.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional front view showing a main part of an embodiment of the present invention together with an object to be cleaned.

FIG. 2 is a front view showing an exploded main part of the embodiment of FIG.

FIG. 3 is a front view of a partial cross section showing the main part of the embodiment of FIG. 1 together with other objects to be cleaned.

FIG. 4 is a front view showing a main part of another embodiment of the present invention.

FIG. 5 is a front view showing a conventional device cut along line BB in FIG.

FIG. 6 is a plan view showing the conventional apparatus of FIG. 5 cut along AA.

FIG. 7 is an explanatory diagram showing the arrangement of jet nozzles in the conventional apparatus of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2 Partition plate 3 Thinner receiving part 4 Thinner can 5 Thinner 8 Pump 10 Clean liquid distribution supply part 11 Protruding jet nozzle 12,42 Nozzle support part 13,14 Extension pipe 15,41,44,45 Jet nozzle 20 Top cup gun to be cleaned 21, 31 Gun 22 Cup 43 Flexible pipe

Claims (4)

[Scope of utility model registration request] 1. A cleaning device for cleaning a gun for spraying a paint on a coated surface, between a cleaning nozzle part for ejecting a cleaning liquid and a nozzle support part supporting the cleaning nozzle part. A cleaning device for a painting gun, characterized in that a replaceable extension pipe is inserted. 2. A cleaning device for cleaning a gun for spraying paint on a coated surface, wherein a cleaning nozzle part for ejecting a cleaning liquid or a nozzle support part supporting said cleaning nozzle part is of the same type. A painting gun cleaning device characterized in that it can be replaced with one with a different length. 3. A cleaning device for cleaning a gun for spraying a paint onto a coated surface, wherein a support part of a cleaning nozzle part for ejecting a cleaning liquid has an expandable structure. Gun cleaning device. 4. The cleaning apparatus for a coating gun according to claim 1, wherein the extension pipe is configured by using a flexible pipe so that a tip direction of the pipe can be freely changed.