JPH0533462Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a conveying device applied to, for example, a solder reflow device for soldering electronic components to a printed circuit board, a drying oven, and the like.

In this specification, front and rear are based on the moving direction of the transported article, and the front in the moving direction, that is, the left side in FIG. 1, is the front, and the opposite side is the rear. In addition, left and right refer to those facing forward.

BACKGROUND ART For example, a conveyance device for a solder reflow apparatus includes a furnace in which a preheating section and a reflow section each having a heater are provided inside an exterior panel, and a conveyance chain for conveying a workpiece into the furnace. is placed below the workpiece conveyance section of the conveyance chain.
The one in use is equipped with a conveyor for recovering the objects to be processed, which receives the objects to be processed that have fallen from the conveyance chain. Conventionally, in the above-mentioned conveyance device, in order to collect the workpieces that have fallen from the conveyance chain onto the workpiece recovery conveyor, the conveyor is located close to the front end of the workpiece recovery conveyor, and is tilted forward and downward. At the same time, a drawer for collecting objects to be processed was inserted through an opening formed in the front wall of the exterior panel at a height corresponding to the front end of the chute. When the object to be processed that has fallen along the chute enters the drawer from its front end, the drawer is pulled out to the outside of the exterior panel and the object to be processed is taken out.

Problems to be Solved by the Invention However, in conventional conveying devices, the drawer needs to be inserted into the exterior panel, so there is a problem that the drawer mechanism has to be complicated due to the need for other devices. It was hot.

An object of the present invention is to provide a conveying device which solves the above problems.

Means for solving the problem The conveying device according to this invention has a conveying chain placed inside the exterior panel,
In a conveyance device in which an article recovery conveyor for receiving articles that has fallen from the conveyor chain is disposed below the article conveyance part of the conveyance chain, a conveyor that is provided close to the front end of the article recovery conveyor and that faces laterally. It is equipped with a chute that is inclined downward and whose tip extends close to the side wall of the exterior panel, and at a height corresponding to the lower end of the chute, an article retrieval port is formed in the wall of the exterior panel, and a door is provided at the article retrieval port. It is characterized by the fact that it is provided.

Function In the above configuration, the articles that have fallen from the conveyance chain onto the article recovery conveyor are conveyed forward by the article recovery conveyor, transferred from the front end of the conveyor to the chute, and fall along the chute. When collecting articles, it is sufficient to simply open the door and take them out from the outlet.

Embodiment Hereinafter, one embodiment of this invention will be described with reference to the drawings. In this embodiment, the conveying device according to this invention is applied to a solder reflow device.

The solder reflow equipment is a steel plate exterior panel 1.
It is provided with a furnace 4 which is disposed inside the furnace and is comprised of upper and lower half-box-shaped heater housings 2 and 3. Although not shown, a preheating section for creating a temperature profile suitable for reflow temperature conditions and a reflow section for main heating are provided inside the furnace 4 in this order from the rear. A substrate transport path W is defined between the upper and lower heater housings 2 and 3.

A pair of endless conveying chains 5 are arranged in the exterior panel 1 so that the conveying sections 5a are located in the conveying path W. The printed circuit board P is conveyed in through an entrance 6 at the rear end of the exterior panel 1, and both side edges of the printed circuit board P are placed on attachments (not shown) attached to the conveying chains 5 on both sides, and is conveyed through the conveying path W and out of an exit 7 at the front end of the exterior panel 1. A mesh belt type board recovery conveyor 8 is arranged below the conveying chains 5 in the exterior panel 1 to receive the board P dropped from the conveying chains 5. The board recovery section 8a of the board recovery conveyor 8 is located below the board recovery section 5a of the conveying chain 5. A chute 10 is provided in the exterior panel 1 close to the front end of the board recovery conveyor 8 and inclined downward toward the left side. The tip of the chute 10 extends to the vicinity of the left wall 1a of the exterior panel 1, and a stopper 10a is provided there. At the upper end of the chute 10, there is a flat portion 10b that is set to an appropriate size according to the size of the substrate P. At a height position corresponding to the lower end of the chute 10,
A board removal opening 11 is provided on the left wall 1a of the exterior panel 1, and a door 12 is provided at the board removal opening 11.

In such a configuration, the board P on which the mounted components are mounted is transported forward on the transport path W by the transport chain 5, preheated in the preheating section in the furnace 4, and then reflowed in the reflow section. However, the substrate P may fall while being transported by the transport chain 5. The fallen substrate P is placed on the substrate recovery conveyor 8 and is transported forward by the conveyor 8. Then, it is transferred from the front end of this conveyor 8 to the chute 10, and the chute 10
, and is stopped by the stopper 10a at the lower end of the chute 10. and,
The door 12 is opened and the substrate P is taken out from the take-out port 11.

Effects of the invention According to the conveyance device of this invention, articles that have fallen from the conveyance chain onto the article recovery conveyor can be taken out from the takeout port by opening the door provided on the side wall of the exterior panel, as described above. . Therefore, it is only necessary to form an article takeout port in the side wall of the exterior panel that does not interfere with other devices and to provide a door, which simplifies the mechanism.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, and Fig. 1 is a schematic vertical vertical cross-sectional view of the entire solder reflow apparatus to which the conveying device of this invention is applied, and Fig. 2 is an enlarged partially cutaway perspective view showing the main parts. be. DESCRIPTION OF SYMBOLS 1... Exterior panel, 1a... Left side wall, 5... Conveyance chain, 5a... Board conveyance part (article conveyance part),
8...Conveyer for board collection (conveyer for collecting articles), 10...Chute, 11...Substrate take-out port (goods take-out port), 12...Door, P... Board.

Claims (1)

[Scope of claim for utility model registration] A conveyor chain is arranged inside the exterior panel,
In a conveyance device in which an article recovery conveyor for receiving articles that has fallen from the conveyor chain is disposed below the article conveyance part of the conveyance chain, a conveyor that is provided close to the front end of the article recovery conveyor and that faces laterally. The chute is provided with a chute that is inclined downward and whose tip extends to the vicinity of the side wall of the exterior panel, and at a height corresponding to the lower end of the chute, an article retrieval port is formed in the side wall of the exterior panel, and a door is provided at the article retrieval port. A conveying device characterized by being provided.