JPH0732226B2 - Pin insertion device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a pin insertion device used when manufacturing an electronic component mounting substrate called a so-called pin grid array having a large number of conductor pins. In particular, the present invention relates to a pin insertion device for automatically inserting conductor pins into pin insertion holes formed in the pallet while sequentially and continuously transporting the pallet corresponding to the electronic component mounting board.

(Prior Art) In an electronic component mounting substrate called a pin grid array having a large number of conductor pins, a conductor circuit formed on the substrate side and a substrate on which the electronic component mounting substrate is mounted (usually In order to ensure electrical continuity with the (motherboard) side, a plurality of conductor pins are attached to this type of electronic component mounting board by a method such as insertion or fixation, and the conductor pins are used to connect the electronic component mounting board and the motherboard. It is designed to have electrical continuity. (Refer to FIG. 8) In such a board for mounting electronic parts in recent years, the electronic parts mounted on the board are becoming smaller, and there is a strong demand for making the entire size smaller after mounting. Due to such circumstances, the shape of the conductor pin itself used for the electronic component mounting substrate has become smaller and smaller in recent years. Moreover, this conductor pin needs to be securely attached to the electronic component mounting board even if it is small, and therefore its shape is complicated as shown in FIGS. 6 and 7. Is becoming. The actual size of the conductor pin shown in these figures is such that the diameter of the base is about 0.5 mm and the length is about several mm, and it has a collar to ensure positioning and support to the board. It has a complicated shape. And, such a small and complicated conductor pin must be attached to, for example, 20 to 50 pieces on a 20 mm square substrate.

To attach about 20 to 50 small and complicated conductor pins to a small board, arrange them in a predetermined state in advance using a dedicated pallet or the like. It needs to be prepared, but most of these preparations were done by hand before.
However, not only is it extremely inefficient to manually prepare a large number of small conductor pins in a prescribed arrangement, but also to displace the conductor pins arranged in a prescribed state from the pallet in the middle of moving work, etc. Since it may be bent or bent, various studies have been made to automatically perform this by mechanical means.

As means for automatically arranging such conductor pins,
For example, there is an automatic pin insertion method as shown in Japanese Patent Publication No. 53-9714. That is, this method includes: "introducing an elongated object onto a carrier having a plurality of openings, and accelerating the carrier by vibrating the object to disturb the object to be introduced into the openings in the carrier." And a pressure difference between the upper part and the lower part of the opening, introducing gas into the upper part of the opening and sucking the object into the opening to introduce the object into the opening. An automatic step comprising the steps of assisting with squeezing and periodically reducing the pressure differential to reduce the flow of gas to the top of the aperture and releasing the crowded object in cooperation with the vibration of the carrier. `` Pin insertion method '', although it is possible to achieve insertion of the conductor pin at the intended location to some extent with this method, the properties of the gas have not been sufficiently investigated, and the device to which this method is applied In that case, Input speed (efficiency), removal of the conductive pin does not enter the pallet in a desired state, compactness of the entire apparatus is not completed.

It is considered that the shape and properties of the above-mentioned object (hereinafter referred to as a conductor pin) are not taken into consideration, so that the conductor pin cannot be optimally handled.

I still have such problems.

That is, since gas is a fluid, it takes a certain amount of time to reach a steady state at a certain pressure unless some other force is applied. Applying this to a device adopting the above insertion method, it takes a considerable amount of time to restore from a depressurized state using atmospheric pressure.
In order to shorten this decompression time, a considerably powerful decompression device must be used. Further, even when a predetermined decompression state is created using a considerably powerful decompression device, it takes time to reach the decompression steady state. not to mention,
When it is attempted to repeatedly form the above-mentioned depressurized state and atmospheric open state in a short time, it is natural that a certain limit will occur depending on the nature of the gas used. That is, the efficiency of inserting the conductor pin is limited.

Further, the conductor pin is very small as described above, and its shape is complicated, so that it is easily deformed. Therefore, handling such a conductor pin requires considerable care so that the conductor pin is not deformed. The deformed conductor pin can not only be inserted into the hole of the carrier (pallet), but also
Even if it can be fixed to the substrate, the position will not match and the substrate itself will be a defective product.

Examining how the above-mentioned conventional technique handles a conductor pin having such a property, the above-mentioned Japanese Patent Publication
In the right column, page 5, line 23 of the 53-9714 gazette, "Excessive object (conductor pin) is detected in the excess object removing device (190) as the frame (192) moves to the right in FIG. The object removal frame (192) is held at the rightmost position that does not prevent the descent of the mask (202). " What can be seen from this description is that the object removing frame (192) can be reassembled by pushing the excess conductor pins into place in order to reuse the excess conductor pins. When the conductor pin is pushed by (192), the force applied at that time causes the conductor pin to be deformed and easily scratched. Furthermore, the conductor pins used for the electronic component mounting board are usually subjected to surface treatment (for example, solder plating), and the conductor pins are easily scratched when vibration is applied for a long time by a vibrating device or the like. Further, when exposed to air, oxidation easily progresses, but the automatic pin insertion method disclosed in the above Japanese Patent Publication No. 53-9714 has no specific device from this point of view. It is a thing.

The inventors of the present invention have made various studies on the above-mentioned conventional techniques and have made earnest studies to solve the problems, and as a result, more positively form the pressure difference for inserting the conductor pin into the pallet. Doing so increases the efficiency of conductor pin insertion, and in order to prevent damage to the conductor pins, the method of collecting excess conductor pins and reusing them is not adopted, and the supplied conductor pins are consumed in the order in which they are supplied. The present invention has been completed by newly discovering that it is desirable to do so.

(Problems to be Solved by the Invention) The present invention has been made based on the above circumstances, and the problem to be solved is the inefficiency of the insertion work of the conductor pin in the conventional pin insertion device. It is damage or deformation of the pin itself.

The object of the present invention is, of course, that the pin insertion work can be performed automatically, and that the pressure change for inserting the conductor pin is positively formed to allow the conductor pin insertion work to be performed. Efficient operation By achieving this, the entire device can be made compact. For continuous and faster pallet feeding, continuous insertion of conductor pins into this pallet is sufficient. What it is able to do is to provide a pin insertion device that can prevent conductor pins from being damaged or deformed by consuming the conductor pins in the order of supply.

(Means for Solving Problems) Means adopted by the present invention for solving the above problems are
The description will be given with reference to FIG. 1 to FIG. 5 corresponding to the embodiment. “A hermetic box (10) connected to a vibrating device (13) and vibratably arranged with respect to a base frame (11) An internal transfer path (20) having an opening (21) that can communicate with the pin insertion hole (63) of the pallet (60) that is sequentially transferred in the airtight box (10), In the pin inserting device for inserting the conductor pin (70) into a predetermined position of the pallet (60) conveyed on the transfer path (20), the airtight box (10) located below the internal transfer path (20).
The suction device (40) for continuously sucking the gas inside is connected to the airtight box (10), and the airtight box (10) is located below the internal transfer path (20).
High-pressure gas supply device (20
0) is connected to the pin insertion device (100) ”.

That is, this pin insertion device (100) is
3) A plurality of pallets (60) are sequentially transported on the internal transportation path (20) which is vibrated together with the airtight box (10), and pin insertion holes (63) formed in the pallets (60). The conductor pins (70) are automatically inserted into each of the inside, but at this time, the internal transport path (2
0) The pressure change for inserting the conductor pin (70) into the pin insertion hole (63) with respect to the pallet (60) conveyed over the suction device (40) and the high pressure gas supply device (200). )
The conductor pins (70) are inserted into the pin insertion holes (63) of each pallet (60) by positively forming them by the cooperating work of.

Then, by providing the intensity and direction of vibration of the vibrating device (13), and further, the supply position of the conductor pin (70), that is, the disposition position of the conductor pin supply device (50) on the front end side of the internal transport path (20), Insert the conductor pin (70) into each pallet (60) in the order of supply so that the moving direction of the conductor pin (70) is opposite to the carrying direction of the inner carrying path (20) of each pallet (60). It is designed to be sequentially inserted into the hole (63) for consumption.

(Operation of the Invention) The present invention adopts the above-mentioned means and has the following operation.

While the pallet (60) composed of the main pallet (61) and the sub pallet (62) is sequentially transferred from the pallet transfer path (80A) to the internal transfer path (20) in the airtight box (10). , The airtight box (10) has a vibration device (1
Vibration is given by 3). In addition, each pallet (60) thus conveyed on the internal conveyance path (20).
In contrast, a large number of conductor pins (70) are sequentially supplied from above by a predetermined amount by a conductor pin supply device (50).
Further, the inside of the airtight box (10) located below the internal transfer path (20) is kept in a reduced pressure state by a suction device (40) connected to the airtight box (10).

Further, in this pin insertion device (100), a high-pressure gas is intermittently placed in the airtight box (10) at a position located below the internal transfer path (20) provided in the airtight box (10). Since a high-pressure gas supply device (200) for supplying air to the airtight box (10) is provided, the suction device (40) connected to the airtight box (10) depressurizes a portion of the airtight box (10) below the internal transfer path (20). This high-pressure gas supply device (200) keeps the airtight box (10) even if it is kept in the state.
The depressurized state by the suction device (40) inside is positively and intermittently released. That is, the depressurized state is released by intermittently forcibly supplying the gas by the high-pressure gas supply device (200). For example, the depressurized state is released by opening the part in the depressurized state to the atmosphere. The release is completed within an extremely short time compared to the release method. This is not due to the natural physical flow characteristics of the gas, but rather the high pressure gas supply (200).
This is because the forced supply of gas by

Under such conditions, each pallet (60) is sequentially transported while being vibrated, and each pin insertion hole (63) formed in the pallet (60) is located in the airtight box below the internal transport path (20). Since it is in the state of communicating with the inside of (10), air is passed through each of these pin insertion holes (63) to the internal transfer path (2
It flows to the lower side of 0). According to this air flow, each conductor pin (70) is sucked into the pin insertion hole (63), so that one conductor pin (70) is automatically inserted into each pin insertion hole (63). is there. Here, by intermittently supplying the high-pressure gas with the high-pressure gas supply device (200), only the conductor pin (70) that was not inserted in the normal state is vibrated by the vibration device (13) due to the vibration of the vibration device (13).
And the next legitimate insertion will continue.

In the pin insertion device (100) of the embodiment described later, each brush (31) is usually the internal transfer path (20).
By being in contact with each pallet (60) above, each brush (31) divides the internal transport path (20) into a predetermined range. As a result, within the range defined by the brushes (31), the conductor pins (70) are not consumed other than entering the pin insertion holes (63) of the pallets (60). That is, when only the inside of the section is viewed, the conductor pin (70) moves from the front end side to the rear end side due to the vibration applied thereto, and new pallets (60) are supplied one after another, thereby The conductor pins (70) in the compartment are sequentially consumed. The brushes (31) may be rocked by the brush rocking device (30) to open the above compartments. However, due to the opening action of the brush (31) and the vibration given by the vibration device (13). As a result, each conductor pin (70) is sequentially sent backward.

Then, on the upper side of each pallet (60), each brush (31) is rocked as necessary while being in contact with the pallet (60) by the plurality of brush rocking devices (30), Conductor pins (70) are interposed between the brush oscillating devices (30) almost uniformly in density, and are concentrated in the vicinity of the pin insertion holes (63) in which the conductor pins (70) are inserted. The surplus conductor pins (70) are sequentially swept backward as each pallet (60) moves forward. As a result, in each pallet (60) that moved forward and reached the pallet transport path (80B), one conductor pin (70) was inserted into each pin insertion hole (63). In this state, the surplus conductor pins (70) are not located on the pallet (60).

(Example) Below, this invention is demonstrated in detail based on the Example shown in drawing.

FIG. 1 shows a partially enlarged vertical sectional view of a pin insertion device (100) according to the present invention. This pin insertion device (100) is used for automatic production of electronic component mounting substrates as shown in FIG. It is used for a part of the device. The automatic manufacturing apparatus for electronic component mounting boards shown in FIG. 3 organically connects a plurality of transfer paths, and a main pallet (61) is provided on each of these transfer paths.
By sequentially transporting the sub pallet (62) or the pallet (60) in which these are integrated, a predetermined number of conductor pins (70) are automatically formed on the board constituting the electronic component mounting board by the device provided in each part. It will be planted continuously and continuously. The pin insertion device (100) according to the present invention is used in a part constituting a front stage of this automatic manufacturing device.

The pin insertion device (100) is formed in the airtight box (10) connected to the vibration device (13) and oscillatably arranged with respect to the base frame (11). An internal transfer path (20), an opening (21) provided in the internal transfer path (20), a suction device (40) for keeping the airtight box (10) in a depressurized state, and an internal transfer path (20). A large number of conductors on the high pressure gas supply device (200) for intermittently supplying high pressure gas to the airtight box (10) side below the pallet and on the pallet (60) conveyed on the internal conveyance path (20). Pin (70)
And a conductor pin supply device (50) for supplying. The pin insertion device (100) according to the present embodiment includes a brush (31) arranged above the airtight box (10) and rocked by the brush rocking device (30).

As shown in FIG. 1, the airtight box (10) is swingably supported on a base frame (11) arranged in the lower part of the airtight box (10). Vibration is applied by a vibrating device (13) provided.
A plurality of suction ports (12) are formed on the lower side of the airtight box (10) as shown in FIG. 1, and a decompression device (40) is connected to each of these suction ports (12). I am doing it.

A conductor pin supply device (50) for supplying a large number of conductor pins (70) to the airtight box (10) is arranged above the airtight box (10). Further, before and after the airtight box (10), pallet transfer paths (80B) and (80A), which are one of transfer paths configuring the automatic manufacturing apparatus for electronic component mounting boards shown in FIG. Are located respectively. Then, in the airtight box (10), the pallet transport paths (80B) and (80A) located at the front and rear are located.
The internal transfer path (20) is formed so as to be continuous with. That is, the pallet (60) in which the conductor pin (70) is not yet inserted is sent from the rear pallet transport path (80A) to the internal transport path (20) and the conductor pin (70) is also sent. The pallet (60) into which is inserted is unloaded from the front of the internal transfer path (20) onto the pallet transfer path (80B).

The upper surface of the internal transfer path (20) is formed smooth so that each pallet (60) described later can slide on it, and a plurality of openings (21) are formed at predetermined portions of the internal transfer path (20). Is formed. As a result, when a large number of pallets (60) are transferred onto the internal transfer path (20), the lower space of the internal transfer path (20) communicates with the upper space of the openings (21). Of. Further, a plurality of rollers (23) are provided on the upper side of the airtight box (10) supporting the internal conveyance path (20), and a belt (22) is hung on each roller (23). is there. Each of these belts (22) is arranged so that the lower surface thereof comes into contact with the upper surface of the side portion of the pallet (60) described later, and the pallet feeding mechanism (for example, the third pallet) arranged on the pallet transport path (80A). Each pallet (60) is sequentially and intermittently fed by the air cylinder (81) shown in the figure), and the belt (22) is driven following the pallet. With the belt (22) thus configured, each pallet (60) is transferred to the internal transport path (20).
Further, the vibration of the vibrating device (13) is efficiently transmitted integrally by being pressed against the airtight box (10).

Further, in the internal transport path (20) in this embodiment,
The pallet (60) is inclined upward toward the rear end side in the transport direction. Such a so-called reverse inclination is set, and the strength and direction of vibration of the vibrating device (13) are appropriately set, so that each conductor pin (70) is set to each pallet (60).
It can move to the rear end side while rising the upper surface. That is, in the pin insertion device (100) according to the present invention, the conductor pins (70) are supplied onto the surface formed by each pallet (60). The formed surface (the upper surface of the internal transfer path (20)) is in the transfer direction (arrow direction in FIG. 1) as described above.
It is descending toward. In this way, the reason why the upper surface of the internal transfer path (20) is lowered in the transfer direction is that the conductor pin (70) has a center of gravity toward the flange portion, This is because they can be positioned for each pallet (60) in the state as shown by. That is, in order to facilitate the movement of each conductor pin (70) by vibration due to vibration and the easy insertion into the pin insertion hole (63) of the pallet (60), the above-described configuration is adopted.

Further, in the pin insertion device (100) of this embodiment, the conductor pin supply device (50) is provided on the front end side of the internal transport path (20) (the side from which the pallet (60) is carried out). . As a result, for each conductor pin (70) supplied onto the internal transfer path (20), the strength and direction of vibration of the vibrating device (13) are set appropriately, and the internal transfer path (20) is palletized (60). (4) is formed so as to be inclined downward toward the front end side in the transport direction, and the surplus portion is sequentially moved toward the rear end side of the internal transport path (20).

The suction device (40) is connected to a suction port (12) formed in an airtight box (10) located below the internal transfer path (20). The suction device (40) is connected to the airtight box (10). )
The gas inside is continuously sucked. That is, the suction device (40) includes air in the space formed by the airtight box (10), the internal transfer path (20), and each pallet (60) transferred along the internal transfer path (20). Of the above gas is continuously sucked from each suction port (12), so that the gas existing above each pallet (60) flows into the lower part of the airtight box (10) through the pin insertion hole (63). It is something that When the gas flows into the pin insertion hole (63), the conductor pin (70) located near the pin insertion hole (63) is inserted into the pin insertion hole (63).

Further, the high pressure gas supply device (200) has an internal transfer path (2
0) is connected to the side of the airtight box (10), and the high pressure gas supply device (200) is located below the internal transfer path (20), contrary to the suction device (40). High-pressure gas is intermittently supplied to the airtight box (10) side located. That is, this high-pressure gas supply device (200)
Is the internal transport path (20) that is maintained at a predetermined depressurized state
The high pressure gas is forcibly and intermittently supplied to the side of the airtight box (10) located below, to temporarily and forcibly release the depressurized state in the airtight box (10).

Further, in the case of the present embodiment, the supply of the high pressure gas by the high pressure gas supply device (200) is performed by the high pressure gas supply device (20
This is done by setting the operation and stop intervals in 0) to 0.2 seconds. As described above, since the high pressure gas supply device (200) repeats its operation and stop within a short time, the conductor pin (70) is inserted into each pallet (60) (the high pressure gas supply device (200). (When the high pressure gas supply device (200) is operating) and the removal of the conductor pin (70) that is not inserted into each pallet (60) under normal conditions.
Can be repeatedly performed within a short time, and the conductor pins (70) can be inserted into the pallet (60) with high efficiency. Thus, the high pressure gas supply device (200)
If the efficiency of inserting the conductor pin (70) is improved by the above, the conductor pin (70) can be sufficiently inserted into the pallet (60) even if the pallets (60) are transported in the airtight box (10) for a short distance. As a result, the length of the airtight box (10) and the internal transfer path (20), and thus the length of the entire pin insertion device (100) can be shortened.

In other words, this high-pressure gas supply device (200) does not release the depressurized state in the airtight box (10) by the natural flow of gas unlike the conventional open-air type, but actively. In addition, the pin inserting apparatus (100) according to the present invention and the automatic manufacturing apparatus shown in FIG. 3 in which the pin inserting apparatus (100) is installed can be configured compactly. To do.

The discharge location of this high-pressure gas supply device (200) in this embodiment is, as shown in FIG.
It serves as a suction port (12) formed in the airtight box (10) located below (0). High-pressure gas supply device (20
When the discharge port of (0) is near the airtight box (10) side of the suction port (12), it is advantageous to directly cancel the suction pressure reducing effect of the suction device (40). In addition,
The direction of the discharge port of the high-pressure gas supply device (200) is such that the discharged high-pressure gas does not cause energy loss (for example, parallel to the direction of the suction port (12) shown in FIG. 1). Direction). Of course, the connection point of the high-pressure gas supply device (200) is not limited to this, and an appropriate setting can be made as long as it is the airtight box (10) located below the internal transfer path (20). is there.

In the pin insertion device (100) according to the present invention,
As shown in FIG. 2, a brush oscillating device (30) may be provided above the internal conveying path (20) for implementation. The brush oscillating device (30) is fixedly supported by a part of the airtight box (10), and is a conductor pin (70) in the compartment located on the rear end side of the internal transfer path (20). Is detected,
The brush (31) is mechanically intermittently driven via the rod as needed. The brush (31) has a large number of flexible fibers planted at its tip, and is rotatably supported at the base of the brush (31) with respect to the airtight box (10). The brush (31) is positioned so that the tip of the brush (31) comes into contact with the pallet (60) transported on the internal transport path (20).

Further, in the brush (31) in the present embodiment, as shown in FIG. 2, a plurality of brushes (31) are provided so as to partition the internal transport path (20) at predetermined intervals. This allows each brush (3
1) is in contact with the upper surface of the pallet (60) on the internal transfer path (20) unless it is driven by the brush oscillating device (30), and is located between the brushes (31). Movement of the pin (70) to other compartments is blocked. That is, when the brushes (31) are in contact with the pallets (60), the conductor pins (70) located in the portions partitioned by the brushes (31) have the pallets (6).
It is consumed only in the pin insertion hole (63) of (0). In this condition, each pallet (60)
When the brushes are sequentially forwarded, the brushes (31) are in contact with the upper surface of the pallet (60) on the internal transfer path (20), so that the pallet (60) and its pin insertion hole (63).
The conductor pin (70) inserted in the normal state is sent forward while maintaining the inserted state, and the surplus conductor pin (70) remains in the compartment. That is, in this case, even if the conductor pin (70) is inserted into the pin insertion hole (63) of each pallet (60) in a predetermined state and further passes directly below the brush (31), the brush (31) Since the conductor is soft, the conductor pin (70) does not protrude from the pin insertion hole (63), and the conductor pin (70) is inserted into the pin insertion hole (63) as it is. ) Is sent forward with.

Here, like the conductor pin (70a) shown in FIG. 4 (a), the one inserted at its head (72) into the pin insertion hole (63) of the pallet (60) (this) In the case where the high-pressure gas is intermittently supplied, it is possible to easily insert the high-pressure gas from the pin insertion hole (63) through the vibration device ( It is dislocated by the vibration of 13) and positioned on the pallet (60) as shown in FIG. 4 (b). Since the action of the high-pressure gas supply device (200) and the brushes (31) is sequentially performed in a plurality of stages, the pins of the pallets (60) located at the front end in the transport direction are the pins of the pallet (60). Each conductor pin (70) is completely inserted into the insertion hole (63), and there is no excess conductor pin (70) on the pallet (60).

On the other hand, when the brush (31) is oscillated by the brush oscillating device (30) to open each section, the oscillating device (13) is moved to move backward with respect to each conductor pin (70). Since the vibration is given by, it is possible to move from each compartment into the compartment located behind it. That is, the fourth
As shown in (a) and (b) of the figure, each pallet (6
0) The conductor pin (70) located above is the pallet (60)
The paper is sequentially fed in the direction opposite to the transport direction of, that is, to the left in the drawing.

In addition, in the present embodiment, the conductor pin (70) is present in the partition located at the rear end of the internal transfer path (20) among the partitions partitioned by the brushes (31). A detection means (not shown) for detecting whether or not it is arranged. This detection means is, for example, a capacitance type proximity switch, detects that the conductor pin (70) does not exist in a predetermined amount in the compartment located at the rear end, and detects the conductor pin supply device (50) and The brush oscillating device (30) is driven. That is, when the conductor pin (70) does not exist in a portion defined by the brush (31) located at the rear end in a predetermined amount or more,
If the conductor pin (70) is not additionally supplied, it will run short, but the detection means that detects this will drive the conductor pin supply device (50) and the brush oscillating device (30), and the conductor pin (70). The additional supply of

As shown in FIG. 5, the pallet (60) is composed of a main pallet (61) and a sub pallet (62), and the sub pallet (62) is fitted on the main pallet (61). Are integrated by. This integration is performed before the pin inserting device (100), and the pallet (60) thus integrated is integrated into the pallet transport path (80A).
Is transported by the internal transport path (20). In addition, corresponding pin insertion holes (63) are formed in each of the main pallet (61) and the sub pallet (62).
When 1) and the sub pallet (62) are combined, each of these pin insertion holes (63) forms one hole as shown in FIGS. 4 (a) and (b). The hole formed in this way has a step portion, and the flange portion (71) of the conductor pin (70) engages with this step portion so that the conductor pin (70) is inserted into the pin insertion hole (63 ). In addition, the main pallet (61) has a hole that does not correspond to the pin insertion hole (63) of the sub pallet (62), but this hole is a device different from the pin insertion device (100). (70)
A conductor pin having a different shape from is inserted into the pin insertion hole (63) of the main pallet (61) from which the sub pallet (62) is removed.

(Effects of the Invention) As described in detail above, according to the present invention, as illustrated in the above-mentioned embodiment, "the vibration device (13) is connected to the base frame (11) so that it can vibrate. The internal transfer path (1) having an airtight box (10) and an opening (21) that can communicate with the pin insertion hole (63) of the pallet (60) formed in the airtight box (10) and transferred sequentially. 20) and a pin inserting device for inserting the conductor pin (70) into a predetermined position of the pallet (60) conveyed on the internal conveying path (20), the pin inserting device being located below the internal conveying path (20). Airtight box (10)
The suction device (40) for continuously sucking the gas inside is connected to the airtight box (10), and the airtight box (10) is located below the internal transfer path (20).
High-pressure gas supply device (20
0) has been connected ", which allows a large number of small and complicated conductor pins (70) to be supplied in the order in which they are supplied.
Pin insertion device (10) that can be reliably and automatically inserted into the pin insertion hole (63) of the pallet (60) within a short time.
0) can be provided by a simple configuration.

That is, in this pin insertion device (100), the intermittent gas flow for automatically inserting the conductor pin (70) into the pin insertion hole (63) of each pallet (60) is decompressed. (40) and the high-pressure gas supply device (200) are used to positively and forcibly create it, so the vibration given by the vibrating device (13) causes each pin insertion hole (63) to enter the pin insertion hole (63) in an abnormal state. The inserted conductor pin (70) pops out from each pallet (60) within a short time, and a new conductor pin (7)
0) can be inserted. Further, as described above, the insertion / removal operation of the conductor pin (70) can be performed within a short time, so that each pallet (60) can be fed continuously and at a high speed. As a result, the conductor pin (70) can be inserted into the pin insertion hole (63) within a short section, so that the pin insertion device (100) can also be made compact and small. Of.

Furthermore, the conductor pins (7
0) is usually subjected to surface treatment (for example, solder plating), and the conductor pin (70) is apt to be scratched when vibration is applied for a long time by a vibration device or the like, and is oxidized when exposed to air. However, according to the pin insertion device (100) of the present invention, the conductor pins (70) are configured to be consumed in the order in which they are supplied within a short time as described above. , The conductor pin (70) is inserted into the pin insertion hole (63) of the pallet (60) reliably and automatically in a short time while preventing the above-mentioned scratches and oxidation problems from occurring. You can do it.

Further, in this pin insertion device (100), the decompression device (40) is always operated in a constant state,
The reduced pressure state is the same for any opening (21) of the internal transport path (20). Therefore, even if the internal transport path (20) itself is lengthened to arrange a large number of pallets (60) or the transport speed of each pallet (60) is increased, each opening (21) of the internal transport path (20) is The required decompression state does not change at all, the conductor pin (70) can be inserted into the pallet (60) efficiently, and the pin inserting device (100) is effective even when the speed of the inserting operation is desired to be increased. It can be provided with a simple configuration.

In the pin inserting device (100), the internal transport path (20) is partitioned by the brush (31) so that the conductor pin (70) does not move into another partition in this partition part. At the same time, if the brush (31) is opened as needed, the conductor pin (70) supplied to the front end of the internal transfer path (20) is gradually consumed toward the rear end in each compartment. To move sequentially. As a result, on the pallet (60) located on the rear end side, the conductor pin (7) sent on each pallet (60) on the front end side of the pallet (60).
0) is supplied and inserted into each pin insertion hole (63). In other words, the conductor pin (7) once supplied into the pin insertion device (100) by the conductor pin supply device (50).
0) is completely consumed at the end, and the conductor pin (70) is not placed in a state where it is damaged or deformed. Therefore, if the pin inserting device (100) is configured as described above, each conductor pin (70) can be inserted into each pallet (60) in good quality, and the conductor pin (70) can be inserted. The pallet (60) can be securely inserted into the pallet (60) without causing damage or deformation.

[Brief description of drawings]

FIG. 1 is a partially enlarged vertical sectional view of a pin inserting device according to the present invention, FIG. 2 is a partially enlarged sectional view showing another embodiment of the pin inserting device, and FIG. FIG. 4 (a) and FIG. 4 (b) are partially enlarged vertical cross-sectional views sequentially showing the changing states of the conductor pins, and FIG. 5 is an exploded perspective view of the pallet. Figure,
FIG. 6 is an enlarged front view of a conductor pin to be inserted into a pin insertion hole of a pallet by this pin insertion device, FIG. 7 is an enlarged top view of the same, and FIG. 8 is an enlarged perspective view of an electronic component mounting board. FIG. 9 is a partially enlarged side view schematically showing the positional relationship between the pallet and the conductor pins in this embodiment. Explanation of symbols 100 ... Pin insertion device, 200 ... High-pressure gas supply device, 10 ... Airtight box, 11 ... Base frame, 12 ... Suction port, 13 ... Vibration device, 20 ...
Internal conveying path, 21 ... Opening, 22 ... Belt, 30 ... Brush swinging device, 31 ... Brush, 40 ... Pressure reducing device, 50 ... Conductor pin supplying device, 60 ... Pallet, 61 ... Main pallet, 62 ... Sub pallet,
63 ... Pin insertion hole, 70 ... Conductor pin, 71 ... Collar part, 72 ... Head part,
80A / 80B ... Pallet transport path, 81 ... Air cylinder.

Claims (2)

[Claims] 1. An airtight box connected to a vibrating device so as to be capable of vibrating with respect to a base frame, and an opening capable of communicating with a pin insertion hole of a pallet formed in the airtight box and sequentially conveyed. A pin insertion device for inserting a conductor pin at a predetermined position of a pallet conveyed on the internal transport path, wherein the gas in the airtight box located below the internal transport path is continuous. A pin insertion characterized in that a suction device for sucking the gas is connected to the airtight box, and a high-pressure gas supply device that intermittently supplies high-pressure gas is connected to the airtight box side located below the internal transfer path. apparatus. 2. The internal transport path is inclined upward toward the rear end side in the transport direction of the pallet, and the conductor pin supply device is provided at the front end side of the internal transport path. The pin insertion device according to claim 1.