JP3334228B2 - Substrate transfer method and substrate transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board transfer method and a board transfer apparatus in an electronic component mounting apparatus for taking out an electronic component from an electronic component assembly and mounting it at a predetermined position on the board. .

[0002]

2. Description of the Related Art In recent years, a board transfer method of a mounting machine is not only used for mass production, but also for various kinds of small-quantity production with many setup changes.
There is a demand for an efficient transport method.

[0003] With the diversification of market needs, the production system of a manufacturer has been changed from a conventional mass production to a high-mix low-volume production.・ Manufacturing system) is being promoted.

Hereinafter, an example of the above-described conventional substrate transfer method will be described with reference to the drawings. FIG. 3 and FIG.
1 shows the configuration and operation of a conventional substrate transfer method.

FIG. 3 shows an example of a conventional board transfer method, wherein 1 is a board after mounting, 2 is an unmounted board, 3 is an unmounted board supply loader section (hereinafter referred to as a loader section), and 4 is a loader section. An XY table section for mounting a substrate, 5 is an unloader section for unloading a substrate after mounting (hereinafter, referred to as an unloader section), 6 moves in parallel with the board transfer direction, and transfers two boards simultaneously by one movement operation. A transfer arm 7 configured as described above, a substrate arrival detection unit 7 for detecting the arrival of the substrate, and a controller unit 8 for controlling the substrate transfer operation. The operation of the substrate transfer method having the above configuration will be described below with reference to FIGS.
This will be described with reference to FIG.

First, the board arrival detecting section 7 determines whether or not the unmounted board 2 is in the loader section 3. If not, wait in the current state until you arrive. If there is, the unmounted board 2 is transported by the transport arm 6 to the XY table section 4 at the mounting position, and mounting is performed. After the completion of the mounting operation, it is determined again whether or not the next unmounted substrate 2 is in the substrate arrival detection unit 7. If there is no board, the board 1 is mounted on the board 1 until the next board arrives at the board arrival detection section 7.
It waits while holding it in the Y table section 4. If there is, the unmounted substrate 2 is transported by the transport arm 6 in the direction of arrow a in FIG. 3 to the XY table portion 4 which is the mounting position, and at the same time, the mounted substrate 1 is unloaded after being mounted by the transport arm 6. It is transported to the unloader section 5. When the transfer arm 6 moves in the direction a for a predetermined distance, it automatically moves in the direction b and returns to the original position. The operation from the start of operation of the transfer arm 6 to the return (hereinafter, one cycle) The time required for the operation is previously adjusted to be constant. Such an operation is repeated.

[0007] Since the last substrate in the lot unit is always located on the XY table 4 which is the substrate mounting position, the operator moves the mounted substrate 1 from the XY table 4 to the unloaded substrate unloader 5 after mounting. are doing.

[0008]

However, the above configuration has an advantage that when the unmounted board 2 is present in the loader section 3, the mounted board 1 and the unmounted board 2 can be transported simultaneously. When there is no unmounted board 2 in the board 3, the board 1 cannot be flown to the next process after the board is mounted unless the next board arrives or the operator does not perform the board discharging work.
There is a problem that the production tact time as a line is deteriorated and a problem that a changeover work from a host computer becomes complicated.

[0009] Further, in the case of a single type of mounting machine which performs adhesive application (hereinafter referred to as bond application) and component mounting, the time from bonding application to component mounting depends on the previous process. For example, if there is no substrate in the loader unit 3, it takes a long time from the application of the bond to the mounting of the component, and there is also a problem that the mounting quality is deteriorated.

In view of the above problems, the present invention does not wait until the unmounted board 2 arrives at the loader unit 3 and does not perform the board discharging operation by the operator, but the mounting machine mounts the mounted board 1 on the board. It is an object of the present invention to provide a substrate transfer method and a substrate transfer apparatus for automatically determining whether to transfer a substrate or not.

[0011]

In order to solve the above-mentioned problems, a substrate transfer method according to the present invention is directed to a method of transferring a substrate from a loading portion to a mounting portion.
Board transfer method for loading into
A law, if there is a substrate to the loading unit, the transportable
Loading the board in the loading section into the mounting section;
And the operation of unloading the substrate in the loading section to the unloading section.
To perform, when there is no substrate in the loading unit is within a predetermined time
To determine whether the substrate arrives at the carry-in section, and does not arrive
When it is determined that the mounting section without waiting for the arrival of the board
Is carried out to the carry-out section. Also,
In order to solve the above problems, the substrate transfer device of the present invention is:
A mounting unit that mounts on the board, and the substrate is loaded into the mounting unit
And a carry-out unit that carries out the board from the mounting unit
And control for controlling the transfer operation of the loading unit and the unloading unit
And a unit, wherein the control unit,
If there is a board in the loading section,
The operation of loading the board into the mounting section,
And the operation for unloading the plate to the unloading unit performs simultaneously, the
If there is no board in the loading section,
When it is determined whether a board arrives at
Without waiting for the arrival of the board,
It controls to carry out to the carrying-out part .

[0012]

According to the present invention , with the above configuration, the substrate is stationary.
Is in a state of being transported, that is,
If there is a board, carry the board from the loading section to the mounting section
Operation and operation of unloading the board from the mounting section to the unloading section
Is carried out at the same time to transfer the substrate efficiently.
The substrate is transported from the previous process due to troubles in the previous process, etc.
If not, that is, there is no substrate
If the board has not been transported for a while, wait for the board to arrive.
Since the board in the mounting section is unloaded to the unloading section without any
In order to carry out the same transfer as the state, the substrate from the previous process is
Continue to wait for the board to be mounted
It is possible to eliminate the problem that is placed . That is, the substrate
Unsteady when transported in a steady state and troubles in the previous process
Efficient both when transported in a state and when
The effect of transferring the substrate to the substrate is obtained .

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the substrate transfer method of the present invention will be described below with reference to the drawings. FIG. 1 shows the configuration of a substrate transfer method according to an embodiment of the present invention. In FIG. 1, 1 is a mounted board, 2 is an unmounted board, 3 is an unmounted board supply loader unit 3 (hereinafter, referred to as a loader unit), 4 is an XY table unit 1 that supports a board to be mounted, and 5 is a mounted Rear substrate discharge unloader (hereinafter referred to as unloader), 6
Is a transfer arm unit for transferring the substrate, 7 is a substrate arrival detection unit as first substrate detection means for detecting arrival of the substrate to the loader unit 3, 8 is a controller unit for controlling a substrate transfer operation, and 9 is a transfer arm unit. The second substrate detection means detects whether or not the next substrate arrives at the substrate arrival detection unit 7 within the time required for one cycle of operation. The operation of the substrate transport method in the electronic component mounting apparatus configured as described above will be described below with reference to FIGS.

FIG. 2 is a flowchart showing the operation of the substrate transfer method of the present invention. First, when a board is present in the board arrival detection section 7, the board is taken in and mounted on the board as in the conventional case. When there is no board in the board arrival detection section 7, first, it is waited until the board arrives at the board arrival detection section 7 unless it is determined whether there is a board after mounting on the XY table section 4. Conversely, if there is a mounting board on the XY table section 4, the transfer arm 6
It is determined whether there is a substrate arriving at the substrate arrival detection unit 7 within the time required for one cycle time, and if so, the operation of the transfer arm 6 is started after the arrival of the substrate. At the same time, the transfer is performed by one cycle operation of the transfer arm 6. When there is no substrate within one cycle operation of the transfer arm 6, the operation of the transfer arm 6 is started without waiting for the next unmounted substrate to arrive at the substrate arrival detection unit 7, and only the unloading of the board after mounting is performed. Performed in a cycle operation.

By repeating the above operation,
Instead of activating the substrate transfer operation by the transfer arm when the substrate arrives at the substrate arrival detection unit affected by the previous process, the transfer arm simultaneously performs the loading and unloading operations within the time required for one cycle operation of the transfer arm. It is determined whether the operation is more efficient or whether only the loading and unloading operations are more efficient, and then the substrate is transported.

[0016]

As described above, according to the present invention, instead of carrying the substrate due to the arrival of the substrate affected by the previous process, whether there is a mounted substrate or whether there is a substrate within one cycle operation time of the carrying arm As a result, the substrate transfer operation is started, so that the production tact as a line is not reduced, and the setup change work of the host computer is not complicated.

[0017] Also, with respect to a mounting machine for performing the bond application and the component mounting, the time from the bond application to the component mounting does not depend on the previous process, and the quality does not deteriorate.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a substrate transfer method according to an embodiment of the present invention.

FIG. 2 is an operation flowchart of the substrate transfer method.

FIG. 3 is an explanatory view of a conventional substrate transfer method.

FIG. 4 is an operation flowchart of a conventional substrate transfer method.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 mounted board 2 unmounted board 3 unmounted board supply loader section 4 XY table section 5 unloaded board unloader section after mounting 6 transfer arm section 7 board arrival detection section 8 transfer control controller section 9 second board detection section

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-178595 (JP, A) JP-A-1-162650 (JP, A) JP-A-61-162413 (JP, A) JP-A-61-162413 79300 (JP, A) JP-A-5-67898 (JP, A) JP-A-61-178314 (JP, A) JP-A-5-193716 (JP, A) JP-A-63-154554 (JP, A) JP-A-3-216413 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H05K 13/02

Claims (8)

(57) [Claims] The substrate is carried in from a carry-in part to a mounting part.
A substrate transfer method for unloading from the mounting portion to the exit portion, when there is a substrate on the loading unit, in said loading unit group
The operation of loading the board into the mounting section,
The operation of unloading the board to the unloading unit is performed at the same time, and when there is no substrate in the unloading unit, the unloading is performed within a predetermined time.
Judge whether the board arrives at the entrance and judge that it does not arrive.
When the board is in the mounting section, it does not wait for the board to arrive.
A substrate transfer method for unloading a board to the unloading unit . 2. When there is no substrate in the carry-in section, it is determined whether or not the substrate arrives at the carry-in section within a predetermined time. 2. The method according to claim 1, wherein an operation of carrying the substrate having arrived at the mounting portion to the mounting portion and an operation of carrying out the substrate in the mounting portion to the unloading portion are performed simultaneously. 3. When there is no board in the carry-in section, it is determined whether or not the board has reached a predetermined distance before the carry-in section, and when it is determined that the board has not reached the board, the board is mounted without waiting for the arrival of the board. The substrate transfer method according to claim 1, wherein the substrate in the section is unloaded to the unloading section. 4. A carry from the carry-in section of the substrate to the mounting unit, and the substrate transfer method according to any one of claims 1 to 3 carried out by the transfer arm out of the unloading unit from the mounting portion. 5. When there is no substrate in the carry-in section, it is determined whether or not the substrate arrives at the carry-in section within one cycle time when the carrying arm carries the substrate and returns to the home position. The substrate transport method according to claim 4, wherein the substrate transports the substrate in the mounting unit to the unloading unit without waiting for the arrival of the substrate. 6. A mounting unit for performing mounting to the substrate, control and loading unit for loading the substrate into the mounting portion, and the unloading unit for unloading the substrate from the mounting portion, the conveying operation of the loading unit and unloading unit And a control unit, wherein the control unit, when there is a substrate in the loading unit, loading the substrate in the loading unit into the mounting unit; and And the operation of unloading the substrate to the unloading unit is performed simultaneously.If there is no substrate at the unloading unit, it is determined whether the substrate arrives at the unloading unit within a predetermined time, and it is determined that the substrate does not arrive. A board transfer device that controls the board in the mounting unit to be unloaded to the unloading unit without waiting for the arrival of the board. 7. When there is a board in the carry-in section, an operation of carrying in the board in the carry-in section to the mounting section and an operation of carrying out the board in the mount section to the carry-out section are performed simultaneously. A control arm that controls a transfer operation of the transfer arm, and determines whether a substrate arrives at the loading unit within a predetermined time if no substrate is present at the loading unit, and determines that the substrate does not arrive When you do
7. The substrate transport apparatus according to claim 6, wherein the transport arm controls the substrate in the mounting unit to be unloaded to the unloading unit without waiting for the arrival of the substrate. 8. A first substrate detecting means for detecting arrival of a substrate to a carry-in part, and a second substrate detecting means for detecting that the substrate has reached a predetermined distance before the carry-in part, 8. The substrate transfer device according to claim 6, wherein the control unit determines whether the substrate arrives at the loading unit within a predetermined time based on the detection by the second substrate detection unit. 9.