公开(公告)号：US3791341A

公开(公告)日：1974-02-12

申请号：US3791341D

申请日：1970-05-28

Applicant: ALLIS CHALMERS MFG CO

Inventor： DIAMOND H ,  GUSTINE F

IPC: B05B7/14 ,  B05B15/04 ,  B05B5/02

CPC classification number: B05B7/1445 ,  B05B7/1454 ,  B05B7/1477 ,  B05B15/0412

Abstract: An electrostatic spray resin coating system recirculates overspray resin particles which do not contact the workpiece and blends them with new resin powder in a supply hopper. A predetermined small volume of powder is maintained in the hopper which contains a distribution of resin powder particle sizes that will not suffer elutriative separation, assures uniform coating, and prevents obstructions caused by compaction of the powder. Means for detecting the workpiece opposite the spray nozzle controls the supply of powder to the nozzle and minimizes the amount of overspray which contains a high proportion of coarse particles, and powder level detecting means responsive to the volume of new and recirculated powder in the supply hopper controls the supply of new powder mixed with the overspray in the supply hopper.

Abstract translation: 静电喷涂树脂涂层系统使不喷涂的树脂颗粒再循环，并将其与新的树脂粉末混合在供料斗中。 在料斗中保持预定的小体积的粉末，其含有不会进行淘析分离的树脂粉末粒度的分布，确保均匀的涂布，并且防止粉末压实引起的障碍物。 用于检测与喷嘴相对的工件的装置控制向喷嘴供应粉末，并使包含大比例粗颗粒的过喷量减至最小，并且粉末水平检测装置响应于供料斗中新的再循环粉末的体积 控制供应料斗中与过度喷涂混合的新粉末的供应。

公开(公告)号：US3724416A

公开(公告)日：1973-04-03

申请号：US3724416D

申请日：1970-05-28

Applicant: ALLIS CHALMERS MFG CO

Inventor： DIAMOND H ,  GUSTINE F

IPC: B05B5/16 ,  B05B7/14 ,  B05B12/08 ,  B05B15/12 ,  B05B5/02

CPC classification number: B05B7/144 ,  B05B5/1683 ,  B05B7/1445 ,  B05B7/1477 ,  B05B12/081 ,  B05B15/1229

Abstract: An electrostatic spray system for resin coating metallic articles heated above the melting temperature of the resin and moved on a conveyor through a spray booth past spray nozzles for resin powder includes means for recovering and recirculating the overspray resin particles which do not come into contact with the heated article, a bin for the recovered resin powder containing a magnet and a vibrating screen for cleaning the power, a supply hopper below the recovered power bin having venturis at its lower end operated by a pressurized air source for controlling the supply of powder to the spray nozzles, means driven by a motor for delivering new powder to the supply hopper, and means for detecting the level of new and recirculated powder in the supply hopper and for energizing the motor only when the powder in the supply hopper is below a predetermined amount which will prevent agglomeration and compacting of the resin powder particles. In one embodiment a hopper for new resin powder is disposed above the supply hopper, a rotatable valve at the lower end of the new powder hopper is rotated by an electric motor and controls the amount of new powder delivered to the supply hopper, and the powder level detecting means controls the energization of the electric motor. In an alternative embodiment, a flexible screw conveyor driven by an electric motor controlled by the powder level detecting means delivers the new powder to the bin containing the magnet and vibrating screen to remove agglomerated particles and ferromagnetic particles from the new powder.

Abstract translation: 一种用于树脂涂覆金属制品的静电喷涂系统，其加热到高于树脂的熔融温度并在输送机上通过喷雾室通过用于树脂粉末的喷嘴而移动的金属制品包括用于回收和再循环不与外界接触的过喷树脂颗粒的装置 加热物品，用于回收的含有磁体的树脂粉末的箱和用于清洁动力的振动筛;在其下端的回收的动力仓下方的供给料斗，其下端由加压空气源操作，用于控制向粉末供应粉末 喷嘴，由用于将新粉末输送到供料斗的马达驱动的装置，以及用于检测供料斗中新的再循环粉末的水平并仅在供料斗中的粉末低于预定量 这将防止树脂粉末颗粒的聚集和压实。 在一个实施例中，用于新树脂粉末的料斗设置在供料斗的上方，新粉末料斗的下端的可旋转阀由电动机旋转并控制输送到供料斗的新粉末的量，粉末 电平检测装置控制电动机的通电。 在替代实施例中，由由粉末水平检测装置控制的电动机驱动的柔性螺旋输送机将新粉末输送到容纳磁体和振动筛的容器，以从新粉末中除去附聚颗粒和铁磁颗粒。

公开(公告)号：US3724755A

公开(公告)日：1973-04-03

申请号：US3724755D

申请日：1971-09-27

Applicant: ALLIS CHALMERS

Inventor： DIAMOND H ,  GUSTINE F

IPC: B05B5/16 ,  B05B7/14 ,  B05B15/12 ,  B05B5/02

CPC classification number: B05B7/144 ,  B05B5/1683 ,  B05B7/1445 ,  B05B7/1454 ,  B05B7/1477 ,  B05B15/1229

Abstract: In an electrostatic powder spray system wherein resin powder is fed from a supply hopper to a powder dispensing venturi and is propelled therefrom by pressurized air through a conduit to a spray gun, the venturi housing is constructed of insulating material so that resin powder particles electrostatically charged by the triboelectric effect are not attracted to the venturi housing walls and do not clog the venturi.

Abstract translation: 在静电粉末喷射系统中，其中树脂粉末从供料斗进料到粉末分配文丘里管，并且通过加压空气通过导管从其喷射到喷枪，文丘里管壳体由绝缘材料构成，使得树脂粉末颗粒静电 摩擦电效应不会吸引到文丘里管的墙壁上，也不会阻塞文丘里管。