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Powder supply device

A supply device and powder technology, applied in the direction of transportation and packaging, loading/unloading, conveying bulk materials, etc., can solve problems such as changes in supply valve powder supply, and achieve the effect of improving quality or productivity

Active Publication Date: 2015-07-08
TOYOTA JIDOSHA KK
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, in the powder supply device disclosed in Patent Document 1, the powder supply unit (replenishment valve) that controls the supply amount of powder supplied to the powder supply unit provided with the sub-hopper is approximately 100°C with respect to the main hopper. Arranged vertically, the replenishment valve is in contact with the above-mentioned powder. Therefore, for example, due to the sticking of the powder to the replenishment valve, the performance of the replenishment valve changes over time, resulting in the problem of fluctuations in the supply of powder. or problems requiring periodic replacement of the make-up valve

Method used

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Embodiment approach 1

[0024] figure 1 It is a perspective view schematically showing the main configuration of a laser welding processing apparatus to which Embodiment 1 of the powder supply apparatus of the present invention is applied.

[0025] The illustrated laser welding processing device 9 is, for example, a device that performs laser welding processing on the valve seat portion of the cylinder head H, and includes: a cylinder head holding device 1 that deflects and holds the cylinder head H; A laser processing head 2 that discharges powdered metal (powder) (such as a material mainly composed of copper); the laser processing head 2 is tilted and held relative to the vertical direction, and the laser processing head 2 is rotated around the vertical axis a rotating rotating device 3; and a powder supplying device 4 for supplying powdered metal toward the laser processing head 2.

[0026] The cylinder head holding device 1 deflects the cylinder head H so that the central axis of the valve seat ...

Embodiment approach 2

[0040] image 3 It is an overall configuration diagram showing the overall configuration of Embodiment 2 of the powder supply device of the present invention. image 3 The powder supply device of Embodiment 2 shown is compared to figure 2 The shown powder supply device according to Embodiment 1 is mainly different in the structure of the intersection between the first pipe and the second pipe, and the other structures are the same as those of the powder supply device according to Embodiment 1. Therefore, the same reference numerals are assigned to the same structures as those in Embodiment 1, and detailed description thereof will be omitted.

[0041] exist image 3 In the illustrated powder supply device 4A, the second pipe 27A has a bent portion 27cA protruding downward at an intersection 28A between the first pipe 26A and the second pipe 27A.

[0042] As described above, by providing the curved portion 27cA protruding downward at the crossing portion 28A, the powder guid...

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Abstract

Provided is a powder supply device that can stably supply powder from a main hopper to a powder supply means including a sub-hopper without requiring component replacement and the like. The powder supply device is provided with: a first piping that guides powder accumulated in a main hopper downward; a second piping that is connected to the first piping at a lower end portion thereof while intersecting with the first piping, and that guides the powder guided by the first piping to a sub-hopper; and a switching valve that pressure-feeds the powder temporarily deposited while forming an angle of repose at an intersecting portion of the first piping and the second piping, to the sub-hopper.

Description

technical field [0001] The present invention relates to a powder supply device, for example, to a powder supply device for supplying powder such as powdered metal used in laser cladding. Background technique [0002] In the past, for example, in order to improve the durability of the valve seat of the engine cylinder head and increase its degree of design freedom, laser processing is known in which, for example, a powder (powder) welding material is supplied to the valve seat while irradiating it. Laser, and the valve seat and the laser are rotated relative to each other, thereby forming a cladding layer (cladding layer, surfacing layer). This laser processing is a technique generally called laser cladding processing. The cylinder head, which has undergone mechanical processing required for the combustion chamber of the engine, such as valve hole forming processing, is applied to the area that should become the valve seat. A wear-resistant powdery deposition material made o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G47/18C23C24/10
CPCB65G65/40B65G53/04B65G53/52B23K26/00B23K26/144B65G53/10
Inventor 佐藤彰生木寺健治久米宪一
Owner TOYOTA JIDOSHA KK
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