JPH11334843A - Automatic conveying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To completely prevent a dropped foreign matter from attached to a conveyed product by comprising a pair of first covers for covering a product conveyed by a first chain conveyor and a pair of second covers for covering a product conveyed by a second chain conveyor. SOLUTION: A printed wiring board 9 is vertically suspended by deforming a supporting rod 4 and loading a top plate 3 of a hanger 8 comprising a C- shaped curved portion 5 at an angle of 45 degree to the transporting direction 11 on a pair of chains 2a, 2b forming a first chain conveyor 1. Then the printed wiring board 9 is covered by a pair of first covers 10a, 10b horizontally mounted in such manner that they are wrapped one another through the C-shaped curved portion 5, and automatically conveyed. The printed wiring board 9 is vertically suspended by loading the top plate 3 on a pair of chains forming a second chain conveyor, and automatically conveyed in a state that it is covered by a pair of second covers in a state that an angle of the curved portion 5 to the transporting direction is 45 degrees.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic conveying device used for an assembly line of industrial products and the like.

[0002]

2. Description of the Related Art Conventionally, in an assembly line of an industrial product such as a printed wiring board, the industrial product is suspended on a hanger placed on a chain of a chain conveyor. An automatic transfer device for automatic transfer is used.

Further, in an automatic transfer device for transferring industrial products, such as a printed wiring board, which requires no foreign matter such as dust to adhere thereto, foreign matter such as oil, dust, and dust attached to a chain conveyor drops. In order to prevent it from adhering to industrial products, the support bar of the hanger is deformed to provide a U-shaped curved portion at an angle of 90 degrees with respect to the transport direction,
A method is known in which a pair of covers are wrapped with each other via the curved portion.

However, in the above-mentioned conventional method,
For example, as in the case of automatically transporting a printed wiring board, the hanger and the printed wiring board suspended therefrom are inverted by 90 degrees with respect to the transport direction for saving space after the painting step and before the drying step. When it is necessary to convey, the angle of the curved portion with respect to the conveying direction becomes 0 degree by reversing 90 degrees, and in this state, it becomes impossible to wrap the pair of covers through the curved portion, so that foreign matter falling It is impossible to completely prevent adhesion.

The present invention is directed to a method of transporting a product in a vertically suspended state, wherein the product is transported in a state where the angle of the product to be transported is reversed by 90 degrees, and even if it is necessary to further transport the product, oil droplets, dust, dust, etc. It is an object of the present invention to provide an automatic conveyance device which can completely prevent foreign matters such as falling and adhering to a conveyed product.

[0006]

That is, the present invention provides:
(A) a first chain conveyor having a pair of chains that move in parallel in a certain direction at a predetermined speed; (B) a top plate placed on the chains; and a support fixed to the top plate. A hanger including a bar, a brace fixed to the tip of the support bar, and a chuck attached to the brace tip;
(C) The top product is sequentially placed on a pair of chains of a first chain conveyor at predetermined intervals in a state where the product is held vertically by the chuck while the product is held by the chuck, and the product is sequentially and automatically transported. Then, in a state in which the hanger and the conveyed product are inverted by 90 degrees with respect to the conveying direction, a top chain of the inverted hanger is sequentially placed and a second chain conveyor that automatically conveys the conveyed product is used. In the transfer device, the support bar of the hanger is deformed to provide a U-shaped curved portion that is less than 90 degrees with respect to the transport direction and forms a certain angle, and is horizontally wrapped with each other through the curved portion. A pair of first covers that cover the conveyed product conveyed by the first chain conveyor and that prevent foreign substances from dropping and adhering to the conveyed product. angle They are arranged in a horizontal direction so as to wrap each other via the the curved portion in a state of 90 ° by inverting the second
Covers the products transported by the chain conveyor
It is an object of the present invention to provide an automatic transport device comprising a pair of second covers for preventing foreign substances from falling and adhering to the transport product.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The first and second chain conveyors used in the present invention are composed of a pair of chains that move in parallel in a predetermined direction at a predetermined speed on a normal automatic transfer line.

The hanger used in the present invention is for suspending an industrial product to be conveyed, and includes a top plate mounted on the chain, a support bar fixed to the top plate, and a tip of the support bar. , And an industrial product conveyed by the chuck is held and suspended.

In the apparatus of the present invention, the top plate is sequentially placed on a pair of chains at a fixed interval, and the interval can be appropriately selected according to the type of industrial product to be conveyed.

[0010] In the apparatus of the present invention, the conveyed products, which are industrial products, are held automatically by a chuck and are automatically conveyed sequentially in a suspended state, that is, in a vertically suspended state.

The apparatus according to the present invention can be used for assembling industrial products such as printed wiring boards, metal plates, sashes and automobile parts.
It can be used for line transfer in surface treatment, painting such as electrodeposition painting, baking and the like.

[0012] After sequentially mounting the top plate of the hanger vertically suspending the conveyed products on a pair of chains of the first chain conveyor and automatically conveying the conveyed products sequentially, the hanger and the conveyed products are required due to space saving and other reasons. It is reversed by 90 degrees with respect to the transport direction. Next, the top plate of the hanger, which is inverted by 90 degrees, is sequentially placed on a pair of chains of the second chain conveyor, and the conveyed products are automatically conveyed sequentially.

In the apparatus of the present invention, the angle of the conveyed product with respect to the convey direction is set to 90 to save space after conveyance.
If it is necessary to transport the product further in the inverted state, the above-mentioned hanger support is used to prevent foreign substances such as oil, dust and dust adhering to the chain conveyor from falling and attaching to the transported product. Deform the rod and move 90
A U-shaped curved portion that is less than a degree and forms a certain angle is provided, and is disposed horizontally so as to overlap with each other through the curved portion, and covers a conveyed product conveyed by the first chain conveyor. A pair of first covers for preventing falling foreign substances from adhering to the conveyed product, and further wrapping each other through the curved portion in a state where the angle of the conveyed product with respect to the conveying direction is reversed by 90 degrees. And a pair of second covers that cover the conveyed product conveyed by the second chain conveyor and prevent foreign substances that fall down from adhering to the conveyed product.

In order to provide a U-shaped curved portion by deforming the support bar of the hanger, for example, a part of the support bar is cut and the U-shaped curved portion is formed by welding, an adhesive, a screw or the like instead. It can be done by attaching.

The angle of the U-shaped curved portion with respect to the conveying direction by the first chain conveyor is less than 90 degrees as long as a pair of covers can be wrapped through the curved portion to prevent the attachment of falling foreign substances. Although there is no particular limitation as long as it is present, it is preferably 30 to 60 degrees, and particularly preferably 45 degrees.

A specific example of the apparatus of the present invention will be described below with reference to the drawings. 1 and 3 are partial perspective views illustrating an example of the device of the present invention. 2 and 4 are partial sectional views for explaining one example of the device of the present invention.

1 to 4, 1 is a first chain conveyor, 2a and 2b are a pair of chains of the first chain conveyor, 3 is a top plate, 4 is a support bar, and 5 is a core. , A reference numeral 6 denotes an arm,
Reference numerals a and 7b denote chucks, 8 denotes a hanger composed of a top plate 3, a support rod 4, a brace 6, and chucks 7a and 7b, and 5 denotes a hook which is formed by deforming the support rod 4 of the hanger 8. 9 is a printed wiring board, 10a and 10b are a pair of first covers, 11 is a conveying direction of the first chain conveyor,
21 is a second chain conveyor, 22a and 22
b is a pair of chains constituting the second chain conveyor 21, 23a and 23b are a pair of second covers, and 24 is the direction of conveyance of the second chain conveyor.

1 and 2, a printed wiring board 9 is a top plate of a hanger 8 on which a support bar 4 is deformed and a U-shaped curved portion 5 is attached thereto at an angle of 45 degrees with respect to a transport direction 11. 3 are placed on a pair of chains 2a and 2b constituting the first chain conveyor 1 and suspended in a vertical direction, and are horizontally arranged so as to wrap each other through a U-shaped curved portion 5. The coating process is completed while being automatically conveyed while being covered by the first covers 10a and 10b. Next, after the hanger 8 and the printed wiring board 9 are turned 90 degrees, the top plate 3 is placed on a pair of chains 22 a and 22 b constituting the second chain conveyor 21 as shown in FIGS. 2 and 4. The printed transfer board 9 is suspended vertically to bend the curved portion 5 in the transport direction 24.
Is 45 degrees, and is covered and covered by a pair of second covers 23a and 23b arranged in a horizontal direction so as to overlap with each other via the U-shaped curved portion 5, and is dried and baked while being automatically conveyed. End the process.

[0019]

According to the present invention, even if it is necessary to further convey the conveyed product in a vertically suspended state and then need to convey the conveyed product at an angle of 90 degrees with respect to the conveying direction, the oil droplets The present invention provides an automatic transport apparatus that can completely prevent foreign substances such as dust, dust and the like from dropping and adhering to a transport product.

[Brief description of the drawings]

FIG. 1 is a partial perspective view for explaining an example of the device of the present invention.

FIG. 2 is a partial sectional view for explaining an example of the device of the present invention.

FIG. 3 is a partial perspective view for explaining an example of the device of the present invention.

FIG. 2 is a partial sectional view for explaining an example of the device of the present invention.

[Explanation of symbols]

 1: Chain conveyor 2a, 2b: Chain of first chain conveyor 3: Top plate 4: Support bar 5: U-shaped curved portion 6: Arm 7a, 7b: Chuck 8: Hanger 9: Printed wiring board 10a, 10b: First 1 cover 11: transport direction of first chain conveyor 21: second chain conveyor 22a, 22b: chain of second chain conveyor 23a, 23b: second cover 24: transport direction of second chain conveyor

[Procedure amendment]

[Submission date] July 30, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is a partial perspective view for explaining an example of the device of the present invention.

FIG. 2 is a partial sectional view for explaining an example of the device of the present invention.

FIG. 3 is a partial perspective view for explaining an example of the device of the present invention.

FIG. 4 is a partial cross-sectional view for explaining an example of the device of the present invention.

[Description of Signs] 1: First chain conveyor 2a, 2b: Chain of first chain conveyor 3: Top plate 4: Support bar 5: U-shaped curved portion 6: Arm bar 7a, 7b: Chuck 8: Hanger 9: Print Wiring board 10a, 10b: first cover 11: transport direction of first chain conveyor 21: second chain conveyor 22a, 22b: chain of second chain conveyor 23a, 23b: second cover 24: transport direction of second chain conveyor

Claims (2)

[Claims] 1. A first chain conveyor having a pair of chains that move in parallel in a certain direction at a predetermined speed, (B) a top plate mounted on the chains, and the top plate (C) a hanger including a support bar fixed to the support bar, a arm bar fixed to the end of the support bar, and a chuck attached to the end of the support bar; The top plate is sequentially placed on a pair of chains of the first chain conveyor at predetermined intervals, and after the transported products are automatically transported sequentially, the hanger and the transported product are turned 90 degrees with respect to the transport direction. In the state where the hanger is turned on, in an automatic transporting apparatus comprising a second chain conveyor for automatically transporting the transported product by sequentially placing the top plates of the inverted hanger, the support bar of the hanger is deformed in the transport direction. Less than 90 degrees A U-shaped curved portion having a certain angle is provided, and is disposed in a horizontal direction so as to overlap with each other through the curved portion, and covers a conveyed product conveyed by the first chain conveyor, and foreign matters fall. A pair of first covers for preventing the product from being attached to the product to be conveyed; An automatic conveying device, which is provided with a pair of second covers for covering the conveyed product to be conveyed by the second chain conveyor and preventing foreign substances from dropping and adhering to the conveyed product; . 2. An angle of the curved portion with respect to a conveying direction of the first chain conveyor is in a range of 30 to 60 degrees.
The described device.