US3890921A

US3890921A - Rotatively indexed spray-painting machine

Info

Publication number: US3890921A
Application number: US194164A
Authority: US
Inventors: Harry Szczepanski
Original assignee: Individual
Current assignee: Individual
Priority date: 1971-11-01
Filing date: 1971-11-01
Publication date: 1975-06-24
Anticipated expiration: 1992-06-24

Abstract

A machine supporting a sub-assembly of masks and work pieces on a mechanism that moves this sub-assembly with a rotary motion between a spray chamber and a loading station, while automatically shifting the relative placement of the masks and the work pieces between a spraying relationship and a loadingunloading clearance.

Description

United States Patent 11 1 1111 3,890,921 Szcze anski June 24, 1975 [54] ROTATIVELY INDEXED SPRAY-PAINTING 2,395,960 3/ 1946 Clark et al. ll8/DIG. 7 MACHINE 2,783,708 3/1957 LaGoy 118/301 x 3,379,173 4/1968 Szczepanski 118/301 Inventor: Harry szclepanskl, 900 Clancy 3,427,964 2/1969 Vasilantone 101/126 x N.E., Grand Rapids, Mich. 49503 [22] Filed; No 1, 1971 Primary ExaminerJohn P. McIntosh Attorney, Agent, or Firm-Glenn B. Morse 21 Appl. No.: 194,164

C 118 4 118 301 118 319 [57] ABSTRACT [52] US' I. l l18//326 A machine supporting a sub-assembly of masks and [51] Int Cl B05c 11/12 B050 11/16 work pieces on a mechanism that moves this sub- [58] Field 118/301 32 7 504 assembly with a rotary motion between a spray cham- 118/4 3 ber and a loading station, while automatically shifting the relative placement of the masks and the work [56] References Cited pieces between a spraying relationship and a loading- UNITED STATES PATENTS unloadmg clearance 2,358,258 9 1944 Schweitzer 118/301 x 5 Claims, 66 Drawing Figures PMENTEDJIMms 3,390,921

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Claims

1. A spray-painting machine including a housing defining a spray chamber, spray gun means disposed to project spray within said chamber, ventilation means operative to maintain a flow of air within said chamber, wash means providing at least one water curtain within said chamber, and carrier means rotatably mounted in said housing on a vertical axis of rotation, said carrier means having at least two sets of related workpiece-holding and mask-holding means, said sets being angularly displaced from each other about the axis of rotation of said carrier means, said machine also including an indexing mechanism adapted to rotate said carrier means between positions in which each of said sets is, in turn, placed at said loading station and in said chamber, wherein the improvement comprises: actuating means operative to move the mask-holding means of said two sets oppositely, respectively, to spraying position in said chamber and a position providing clearance over said loading station, said mask-holding means being a unitary structure pivotally mounted on said carrier means at the central portion thereof and adapted to rock between said opposite positions.

2. A machine as defined in claim 1, wherein said actuating means is responsive to said indexing mechanism.

3. A machine as defined in claim 1, wherein said carrier extends in cantilever relationship over the top of a wall defining the lower extremity of an opening in said housing communicating with said chamber.

4. A machine as defined in claim 1, additionally including means mounted on said carrier means and forming a vertical guideway for said workpiece-holding means, and also including positioning means adapted to move said workpiece-holding means to and from a lower position disengaged from a mask carried by said mask-holding means and an upper position engaged therewith.

5. A spray-painting machine including a housing defining a spray chamber, spray gun means disposed to project spray within said chamber, ventilation means operative to maintain a flow of air within said chamber, wash means providing at least one water curtain within said chamber, woRkpiece-holding means, mask-holding means, and carrier means rotatably mounted in said housing on a vertical axis of rotation, and adapted to transfer said workpiece-holding and mask-holding means between a loading station and said chamber, said carrier means having at least two sets of related workpiece-holding and mask-holding means, said sets being angularly displaced from each other about the axis of rotation of said carrier means, said machine also including an indexing mechanism adapted to rotate said carrier means between positions in which each of said sets is, in turn, placed at said loading station and in said chamber, wherein the improvement comprises: an actuator incorporated in said indexing mechanism and mounted on the exterior of said housing at the top thereof, said actuator being adapted to reciprocate said carrier means through a sector of substantially 180*.