JPS624533A - Plate-shaped workpiece conveyer - Google Patents

Abstract

PURPOSE:To reduce a loading time, by providing a means which simultaneously transfers plural sheets of plate-shaped workpieces from a loader to a stock part when a work table moves to a connection position. CONSTITUTION:A loader 1 holds plural sheets of plate-shaped workpieces (a) being spaced in the vertical direction between a pair of conveyers 23, and the plate-shaped workpiece (a) is simultaneously transferred to a conveyer 16 in a stock part 14 by a workpiece supply means 31. While a stock part 18 in the unloader side of a work table 2 holes plural sheets of plate-shaped workpieces (a) being spaced in the vertical direction between a pair of conveyers 19 of said part 18, and the plate-shaped workpiece (a) simultaneously transferred to a conveyer 28 in an unloader 3 by a workpiece discharge means 36. A mounting head 22, mounting an electronic part (c) to a predetermined work point of the plate-shaped workpiece (a) held by a carrier 9, is arranged in the upper of the work table 2.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a component mounting machine that automatically mounts shaft components such as chip resistors and chip multilayer capacitors onto substrates (plate-like workpieces) constituting electronic circuits. , relates to a plate-shaped workpiece conveying device that is mainly used.

Conventional Technology A work table is provided with a carrier that holds a plate-shaped workpiece and moves in the X direction (second direction) on a table main body that moves in the Y direction (first direction), and this work a rotor that supplies a plate-shaped work to the table, and is configured such that when the work table moves to a connection position corresponding to the rotor in the Y direction, the plate-shaped work of the rotor is transferred to the work table. Workpiece conveyance devices are widely used in working machines such as electronic component mounting machines.

The conventional plate-like workpiece conveying device was
As an example is shown in Publication No. 565, when the work table moves to a connection position that coincides with the rotor in the Y direction, one plate-like workpiece is transferred from the rotor to the work table. ing. Therefore, each time a predetermined operation on a plate-shaped work on the work table is completed, the work table returns to the connection position and receives the next plate-shaped work from the rotor. If it takes 5 seconds to load, then 10
The loading time required for a plate-shaped workpiece is 50
seconds.

Problems to be Solved by the Invention In the conventional plate-shaped work transfer device described above, each time a plate-shaped work is fed from the rotor to the work table, the work table moves in the Y direction between the work position and the connection position. Since it has to move back and forth, the loading time becomes longer, which causes a decrease in the operating efficiency of working machines such as electronic component mounting machines.

An object of the present invention is to provide a plate-like workpiece conveying device that can shorten the loading time.

Means for Solving the Problems In order to achieve the above object, the present invention holds a plate-shaped workpiece on a table body that moves in a first direction, for example, the Y direction, and moves it in a second direction different from the first direction. A work table is provided with a carrier that moves in a direction, for example, the In a plate-shaped work transfer device configured to transfer a plate-shaped work on a rotor to a work table,
A stock part for temporarily holding a plurality of plate-like works is provided on the work table, and a transfer means for transferring the plate-like works in the stock part to the carrier one by one is provided on the work table. The present invention is characterized in that a work supply means is provided for simultaneously transferring a plurality of plate-like workpieces from the rotor to the stock section when the workpieces are moved to the connection position. Since the plate-like workpieces can be simultaneously fed to the work table, when, for example, ten plate-like workpieces are fed simultaneously, the number of times of loading and thus the loading time can be reduced to t/10 compared to the conventional example.

Further, the plurality of plate-like workpieces held in the stock section of the work table can be transferred one by one to the carrier and subjected to predetermined work.

EXAMPLE An example of the present invention will be described below with reference to the drawings.

The illustrated embodiment is one in which the present invention is applied to an electronic component mounting machine. Niha tff-1'i on the workpiece conveyance line
A work table 2 and an unrotor 3 are arranged in one row in the X direction.

The table body 4 of the work table 2 is guided by guide rails 5.5 arranged in the Y direction and is driven by a feed screw 6 to move in the Y direction. 7 is a drive motor that rotates the feed screw 6 in forward and reverse directions. A pair of guide rails 8.8 for guiding and supporting a plate-shaped workpiece (substrate) a are arranged on the upper surface of the central portion of the table body 4 in the X direction. Further, on the upper surface of the table main body 4, a carrier 9 is disposed that holds a plate-shaped work a and moves in the X direction over substantially the entire length in the X direction.

The carrier 9 is mainly composed of an endless belt 11 provided with engagement pins 10 at predetermined intervals, and a motor 12 that drives the endless belt 11 in forward and reverse rotation directions. The engagement pin 10 engages with an engagement hole provided in the plate-shaped workpiece a, and functions to hold the plate-shaped workpiece a.
, 13b is a pulley, 13c and 13d are sprockets, 1
3e is a transmission chain.

A stock portion 14 for temporarily holding a plurality of plate-shaped works a is provided on the rotor side portion of the table main body 4. An endless belt-shaped conveyor 16.16 is disposed on each side of the stock section 14, and has a plurality of workpiece supporting protrusions 15 arranged at regular intervals. These conveyors I6.16 are driven by synchronous drive motors 17.
17 moves up and down in the Z direction, both conveyors 16.16
A plate-shaped workpiece a whose both ends are supported by protrusions 15 is moved up and down.

A stock section 18 for temporarily holding a plurality of plate-shaped workpieces a is also provided on the unrotor side portion of the table main body 4, and a stock section 18 having the same structure as the pair of conveyors 16 and 16 is provided on both sides of the stock section 18. A pair of conveyors 19.19 is provided. 20 is a protrusion, and 21.21 is a drive motor.

A mounting head 22 is disposed above the work table 2 for mounting the electronic component C onto a predetermined work point of the plate-shaped work a held by the carrier 9. The work point is determined by positioning the table body 4 in the Y direction and the carrier 9 in the X direction.

The rotor 1 is provided with a pair of conveyors 23.23 similar to the stock section 14, and these conveyors 23.
A plurality of plate-shaped works a are held between 23 protrusions 24. Reference numeral 25.25 is a drive motor, and reference numeral 26.26 is an introduction rail that guides and supports the plate-shaped work a guided to the conveyor 23.23.

The unrotor 3 has a 1
A pair of conveyors 27.27 are provided, these conveyors 2
A plurality of plate-shaped works a are held between 7.27 protrusions 28. 29.29 is a drive motor, and 30.30 is a lead-out rail that guides and supports the plate-shaped workpiece a discharged from the conveyor 27.27.

A plurality of plate-shaped workpieces a are held at intervals in the vertical direction between the pair of conveyors 23 and 23 of the rotor 1.
The workpieces are simultaneously transferred onto the conveyor 16, 16 of the stock section 14 by the workpiece supply means 31. This work supply means 31 is provided on the rotor 1 side, and includes a push plate 32, a main air cylinder 33 that pushes out the push handle 32 in the X direction, a support frame 34 that pivotally supports the main air cylinder 33, and a second main air cylinder 33. A sub-air cylinder 35 is provided which switches the position between a horizontal position shown by a solid line in the figure and an inclined position shown by a phantom line.

In the stock section 18 on the unrotor side of the work table 2, a plurality of plate-shaped works a held at intervals in the vertical direction between the pair of conveyors 19 and 19 are transferred to the unrotor 3 by the work discharge means 36. Conveyor 27.
It is configured to be transferred simultaneously to 27. This work discharge means 36 is provided on the work table 2 side, and similarly to the work supply means 31, it includes a push slope 37, a main air cylinder 38, a support frame 39, and a sub air cylinder 40.

Next, the operation of the plate-like workpiece conveying device having the above configuration will be explained.

A pair of conveyors 23.23 of the rotor l has an inlet rail 2
6. A plate-shaped workpiece a is carried in while being guided to 26. 1
When a sheet of plate-shaped work a is supported between the pair of protrusions 24.24 of the conveyor 23.23, both conveyors 23.
23 rotates downward on the l-bift and stops at a position where the next plate-like workpiece a can be supported between the next pair of protrusions 24 and 24.

By repeating such an operation, a plurality of plate-shaped works a are placed between the pair of conveyors 23 and 23 of the rotor 1.
is in a prone position, with spaces being maintained in the vertical direction.

At this time, the main air cylinder 33 of the work supply means 31
is in an inclined position as shown by the imaginary line in FIG. 2 to prevent the push plate 37 from interfering with the plate-shaped work a on the introduction rail 26, 26.

The work table 2 moves its table main body 4 in the Y direction and its carrier 9 in the X direction, and stops at the respective work positions for each mounting operation, so that the carrier 9
When the work on one plate-shaped work a is completed, the electronic component C adsorbed by the mounting head 22 is mounted on a predetermined work point of the plate-shaped work a held in the plate-shaped work a. is transferred to the stock portion 18 on the unrotor side and held between the protrusions 20, 20 of the pair of conveyors 19, 19. This transition is carried out by rotating the endless belt 11 counterclockwise in FIG. 2 while the engagement pin 10 of the endless belt 11 is engaged with the engagement hole of the plate-like workpiece a, When the plate-shaped work a moves to the stock section 18, the conveyor 19.19
is lowered, and the engagement between the engagement pin lO and the engagement hole is released. The conveyor 19.19, like the conveyor 23.23 of the rotor 1, rotates downward one by one every time it receives a plate-shaped work a from the carrier 9, and moves the plurality of plate-shaped works up and down. It is designed so that it can be held at intervals in the direction. At this time, the main air cylinder 38 of the work discharge means 36 is in an inclined position as shown by the imaginary line in FIG.
This prevents the push plate 37 from interfering with the plate-shaped work a above.

When the work on one plate-like workpiece a is completed, the upper part of the plurality of plate-like works a held in the stock part 14 on the rotor side is moved by the carrier 9 to the guide rail 8, B
be moved upwards. This transition occurs in the stock section 1
The pair of conveyors 16 and 16 of No. 4 are raised, and the endless belt 11 is moved to the position shown in FIG. This is done by rotating counterclockwise. By repeating such operations, the stock portion 1
The plurality of plate-shaped works a held by the carrier 4 are transferred to the carrier 9 one by one. In this embodiment, the transfer means 50 for transferring the plate-shaped workpieces a of the sliding portion 14 one by one to the carrier 9 is composed of the endless belt 11 equipped with the retaining pin 10 as described above and a pair of Although it is configured with conveyors 1B and 1B, its aspect is not limited to this.

As described above, a predetermined number of plate-shaped works a temporarily held in the rotor-side stock part 14 of the work table 2 are each subjected to a predetermined work, and these are transferred to the unrotor-side stock part 18. When the process is completed, the work table 2 moves back to the connection position that coincides with the rotor 1 and the unrotor 3 in the Y direction.

When the work table 2 returns to the connected position, the workpiece supply means 31 and the workpiece discharge means 36 operate simultaneously, and the plurality of plate-like workpieces a held between the pair of conveyors 23 and 23 of the rotor l are simultaneously moved. , the same number of plate-shaped workpieces a held between the pair of conveyors 19, 19 of the unrotor (M stock section 18) are transferred at the same time between the pair of conveyors 16, 16 of the rotor-side stock section 14. , the unrotor 3 is transferred between the pair of conveyors 27, 27. At this time, the main air cylinders 33, 38 of each of the work supply means 31 and the work discharge means 36 are
Both switch to the horizontal position as shown by the solid line in Figure 2,
By pushing the push plates 32, 37 to the right in FIG. 2, it is possible to move the plurality of plate-shaped workpieces a to the right at once. Note that the pair of conveyors 23 of the rotor 1
．． 23 and the pair of conveyors 16.16 of the rotor-side stock part 14 are in a straight line with each other, and the pair of conveyors 2G, 20 of the unrotor-side stock part 18 and the unrotor The corresponding protrusions 20.28 of the pair of conveyors 27.27 of No. 3 are also in line with each other, and the plate-shaped workpiece a is transferred.

The present invention can be configured in various ways other than those shown in the above embodiments. For example, the unrotor side stock portion 18
Also, the unrotor 3 is not essential, and the plate-like workpiece a after being subjected to a predetermined work on the work table 2 may be configured to be discharged by another discharge means.

Effects of the Invention Since the present invention has the above configuration, a plurality of plate-shaped workpieces can be simultaneously supplied from the rotor to the work table, and as a result, the loading time can be significantly shortened compared to the conventional example.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a main part of an embodiment of the present invention, FIG. 2 is a longitudinal sectional side view of the same, and FIG. 3 is a sectional view taken along line mm in FIG. 2. 1−−−−−−−−・・・・−−m−−・・・−・−・
−・・−・・〜・−Rotor 2−・−・−・−・−・・
・・−・−−m−−−−・−1111・−・・1 work table 4・−−1−−−−−−−・−−−−−−1−
−・−・・・−・−1−−−−−−−Table body 9
−・・・−−−−−・−・−・・・−・−・−・−−−
−−−1・−・−・−Carrier 11−−・−・・−
1－－－・−・−・−・−−1－－－
Stock part 31・・−・−１−−−−−・−・−・−・
−・−・−・・−・−−1−−−Work supply means 50
−・−・・−・−・−・−・・−・〜・−・−・−Transition means a−・−・・−・−−m−−・・−・−−1−−
−−−−・−・−・・・・Plate workpiece.

Claims (1)

[Claims] (1) A work table comprising a table body that moves in a first direction and a carrier that holds a plate-like workpiece and moves in a second direction different from the first direction, and this work table. and a rotor for supplying a plate-shaped work to the rotor, and the plate-shaped work of the rotor is configured to be transferred to the work table when the work table moves to a connection position corresponding to the first direction with respect to the rotor. In the plate-shaped work conveying device, a stock part for temporarily holding a plurality of plate-shaped works is provided on the work table, and a transfer means for transferring the plate-shaped works in the stock part to the carrier one by one is provided on the work table. 1. A plate-shaped work conveying device, further comprising a work supply means for simultaneously transferring a plurality of plate-shaped works from a rotor to the stock section when the work table moves to the connection position.