JPH0634368B2 - 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 a conductor pin into a pin insertion hole formed in this pallet while sequentially and continuously transporting a pallet corresponding to the conductor pin.

(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 (mother board) 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 electronic pin mounting board and 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, in this conductor pin, even if it is small, it is necessary to securely attach it to the electronic component mounting board, so that 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 the flange is provided to ensure positioning and support to the board. It has a complicated shape. The conductor pin having such a small and complicated shape has a size of 20 to 50 for a 20 mm square substrate, for example.
It is something that you have to attach about a book. In order to attach about 20 to 50 small and complicated conductor pins to a small board, these conductor pins should be arranged in a predetermined state in advance using a dedicated pallet or the like. Although it is necessary to prepare in advance, most of these preparations were done manually before. However, not only is it extremely inefficient to manually prepare a large number of small conductor pins in a prescribed arrangement, but also in the middle of a moving operation, the conductor pins arranged in a prescribed state must be accidentally ejected from the pallet. Since it may be bent or bent, various attempts have been made to automatically perform this by mechanical means.

As means for automatically arranging the conductor pins, for example, there is an automatic pin insertion method as shown in Japanese Patent Publication No. 53-9714. This method includes: "introducing an elongated object onto a carrier having a plurality of apertures; vibrating the carrier to disturb the object to facilitate introduction into the apertures in the carrier; A pressure difference is provided between the upper part and the lower part of the opening, gas is introduced into the upper part of the opening, and the object is introduced into the opening by sucking the object into the opening. And a step of periodically reducing the pressure difference to reduce the flow of gas to the upper part of the opening and releasing the crowded object in cooperation with the vibration of the carrier. "In Although,
In this method, it is possible to achieve insertion of the conductor pin at a desired location to some extent, but it has the following problems. That is, in this method, it is considered that the optimum handling in consideration of the property of the object (hereinafter, referred to as a conductor pin) cannot be sufficiently performed for the following reason. As described above, the conductor pin is very small and has a complicated shape, so that it is easily deformed. Therefore, handling such a conductor pin requires considerable care so that the conductor pin is not deformed. This is because the deformed conductor pin cannot be inserted into the hole of the carrier (pallet), and even if it can be fixed to the substrate, it will not be aligned and will cause the substrate itself to be a defective product. .

Examining how the above-mentioned prior art deals with the conductor pin having such a property, the following description is made on page 5, right column, line 23 and below in JP-B-53-9714.
"The excess object removing device (190) shoots excess objects (conductor pins) as the frame (192) moves to the right in FIG.
It is urged to be pushed to (99). Object removal frame (192)
Is held in the rightmost position that does not prevent the mask (202) from descending. There is a statement to that effect. What can be understood from this description is that the object removing frame (192) can be reassembled by pushing the excessive conductor pins into place in order to reuse the excess conductor pin. When the conductor pin is pushed by (192), the force applied at that time causes the conductor pin to be deformed and easily scratched. That is, the conductor pins used for the electronic component mounting board are usually subjected to surface treatment (for example, solder plating), and when the conductor pins are vibrated for a long time by a vibration device or the like, they are easily scratched. Also, although it is easy for oxidation to proceed when exposed to air, the above-mentioned Japanese Patent Publication No.
The automatic pin insertion method disclosed in Japanese Patent Publication No. 3-9714 does not have any concrete device from such a viewpoint.

The inventors of the present invention have conducted various studies on the above-mentioned conventional techniques and conducted extensive research to solve the problems, and as a result, collect excess conductor pins in order to prevent damage to the conductor pins. It is recommended that the supplied conductor pins be consumed in the order in which they are supplied, instead of adopting the method of reusing them. Then, the flow direction of the conductor pins and the flow direction of the pallet into which they are inserted are reversed. At the same time, the inventors have newly discovered that it is better to divide the work place for inserting the conductor pin, and completed the present invention.

(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 incompleteness of the handling work of the conductor pin in the conventional pin insertion device. It is damage or deformation of the pin itself. And the purpose of the present invention is to
It is an object of the present invention to provide a pin insertion device capable of automatically performing the pin insertion work and consuming the conductor pins in the order of supply so that the conductor pins are not damaged or deformed.

(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. “With an airtight boss (10) connected to a vibrating device (13) and vibratably arranged with respect to a base frame (11), , Formed inside this airtight box (10)
It is connected to the pallet transport paths (80A) and (80B) arranged before and after (10) and accommodates multiple pallets (60) that are sequentially transported, and the pin insertion holes (63) for each pallet (60) are accommodated. ) And a pallet (60) whose front end is conveyed on the internal conveyance path (20) having an opening (21) which can communicate with
It is connected to the airtight box (10) and a plurality of brushes (31) which come into contact with the upper part and divide the internal conveying path (20) into a plurality of places and which are oscillated by the brush oscillating device (30). A number of devices are installed on the decompression device (40) that keeps the inside of the airtight box (10) under the internal transfer path (20) in a depressurized state, and on the pallet (60) that is transferred on the internal transfer path (20). And a conductor pin supply device (50) for supplying the conductor pin (70).

That is, the pin inserting device (100) accommodates a plurality of pallets (60) on the internal transfer path (20) which is vibrated together with the airtight box (10) by the vibrating device (13). The conductor pins (70) are automatically inserted into the pin insertion holes (63) formed in the pallet (60), but at this time, the tips are conveyed on the internal conveyance path (20). Brush swinging device (3
The inner conveyance path (20) is divided into predetermined sections by the brush (31) that is swung by (0), and each pallet is placed in each section.
Insert the conductor pins (70) into the pin insertion holes (63) of the (60) respectively, and move each section of each pallet (60) in sequence to move the respective sections of the pallets (60) to the pin insertion holes (63). The insertion work into the inside is repeatedly performed a plurality of times.

Then, by providing the intensity and direction of vibration of the vibrating device (13), and further providing 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 transfer path (20), Make the moving direction of the conductor pin (70) opposite to the carrying direction for the internal carrying path (20) of each pallet (60),
The conductor pins (70) are inserted into the pin insertion holes (63) of each pallet (60) in the order of supply.

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

The pallet (60), which is composed of the main pallet (61) and the sub pallet (62), is installed in the airtight box from the pallet transport path (80A).
While being sequentially transported onto the internal transport path (20) in (10),
The airtight box (10) is vibrated by a vibrating device (13). In addition, for each pallet (60) housed on the internal transport path (20) in this way, a predetermined amount of conductor pins is provided.
(70) are sequentially supplied by the conductor pin supply device (50).
In addition, the airtight box (1
The inside of (0) is a decompression device (4
It is kept in a depressurized state by 0).

In addition, in the pin inserting device (100), since the brushes (31) are normally in contact with the pallets (60) on the internal transport path (20), the internal transport path (20) The upper part is divided into a predetermined range by each brush (31). Therefore, the conductor pins (70) are collected by the brushes (31) according to the conveyance of the pallet (60), diffused by vibration, and sequentially inserted into the pin insertion holes (63). In addition, each brush (3
1) may be oscillated by the brush oscillating device (30) to open the above-mentioned compartment. However, due to the opening action of the brush (31) and the vibration given by the oscillating device (13), each conductor pin is (70) is sent to the back one after another.

In this state, 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 they are in communication with the inside of the (10), air flows to the lower side of the internal transfer path (20) through these pin insertion holes (63). 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.

Then, on the upper side of each pallet (60), each brush (31) is moved by the plurality of brush oscillating devices (30).
Since the conductor pins (70) are oscillated as needed while being in contact with (0), the conductor pins (70) are almost uniformly interposed between the brush oscillating devices (30), and the conductor pins (70) are Each pin insertion hole introduced
The surplus conductor pins (70) concentrated in the vicinity of (63) are sequentially swept to the publication as each pallet (60) goes forward. As a result, each pallet (60) that has moved forward and reached the pallet transport path (80B) has its pin insertion hole.
One conductor pin (70) is inserted in each (63), and an excess conductor pin (70) is placed on the pallet (60).
Is not located.

That is, according to the present invention, by sequentially moving each pallet (60) on the internal transfer path (20) partitioned by the brush (31), the conductor into the pin insertion hole (63) in each pallet (60) is The operation of inserting the pin (70) is repeated a plurality of times. This increases the chances that the conductor pin (70) is inserted into the pin insertion hole (63), so that the conductor pin (70) can be inserted efficiently.

(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.
It is used in a part of an automatic manufacturing apparatus for an electronic component mounting substrate as shown in the figure. The automatic manufacturing apparatus for electronic component mounting boards shown in FIG. 2 organically connects a plurality of transfer paths, and integrates the main pallets (61) and the sub pallets (62) on each of these transfer paths. By sequentially transporting the pallet (60), a predetermined number of conductor pins (7
0) is planted automatically 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 apparatus.

The pin insertion device (100) is connected to the vibration device (13) and
Airtight box (10) arranged so that it can vibrate against (11)
And the internal transport path (2) formed in the airtight box (10).
0), the opening (21) provided in the internal transfer path (20), the brush (31) rocked by the brush rocking device (30), and the inside of the airtight box (10) are kept in a reduced pressure state. Decompressor (40)
And a conductor pin supply device (50) for supplying a large number of conductor pins (70) onto a pallet (60) conveyed on the internal conveyance section (20).
It has and.

The airtight box (10) is oscillatably supported on a base frame (11) arranged in a lower portion of the airtight box (10) in FIG. 2, and a vibration device (below the airtight box (10) is provided. Vibration is given by 13). (See Fig. 1)
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.

Also, a large number of conductor pins (7
A conductor pin supply device (50) for supplying 0) onto the internal transport path (20) is arranged. Plus, this airtight box
Before and after (10), the pallet transfer paths (80B) and (80A), which are one of the transfer paths constituting the automatic manufacturing apparatus for electronic component mounting boards shown in FIG. There is. Then, in the airtight box (10), an internal transfer path (20) is formed so as to be continuous with the pallet transfer paths (80B) and (80A) located in the front and rear. That is, this internal transport path (2
For (0), the pallet (60) in which the conductor pin (70) has not been inserted is sent from the rear pallet transport path (80A) to accommodate a plurality of pallets (60) and
The pallet (60) into which the (70) 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 transport path (20) should be above the pallets (6
(0) is formed to be smooth so that it can slide, and the internal transport path (2
A plurality of openings (21) are formed in a predetermined portion of (0). This allows a large number of pallets (60) to be placed on this internal transport path (20).
When the sheet is conveyed, the inside space of the internal conveying path (20) communicates with the upper side thereof through the openings (21).
Also, an airtight box supporting this internal transport path (20)
A plurality of rollers (23) are provided on the upper side of (10), and a belt (22) is wound around each of these rollers (23). 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 transport path (80A).
Each pallet (60) is sequentially and intermittently fed by the pallet feeding mechanism (for example, one using the air cylinder (81) shown in FIG. 2) arranged above, and the belt (22) is driven by the follower. Is configured to. By the belt (22) thus configured, each pallet (60) is transferred to the internal transport path (20).
Also, the vibration of the vibrating device (13) is efficiently transmitted integrally by being pressed to the airtight box (10) side. Then, a brush oscillating device (30) described later is arranged near each of these belts (22).

Further, in the internal transfer path (20) in the present embodiment, the pallet (60) is inclined upward toward the rear end side in the transfer direction. With such a reverse inclination, by appropriately setting the vibration intensity and direction of the vibrating device (13), each conductor pin (70) rises on the upper surface of each pallet (60) to the rear end side. It can move. That is,
In the pin inserting device (100) according to the present invention, the conductor pins (70) are supplied onto the surface formed by each pallet (60). The upper surface (the upper surface of the internal transfer path (20)) descends in the transfer direction (the arrow direction in FIG. 1) as described above. 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 portion where the flange portion is present, and This is because they can be positioned with respect to each pallet (60) in the state shown by. That is, in order to facilitate the insertion of each conductor pin (70) into the pin insertion hole (63) of the pallet (60), the above-mentioned configuration is adopted.

Furthermore, 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 unloaded). . As a result, each conductor pin (7
(0) is that the strength and direction of vibration of the vibration device (13) are appropriately set, and the internal transport path (20) is formed by inclining downward toward the front end side of the pallet (60) in the transport direction. Together with this, the surplus portion sequentially moves toward the rear end side of the internal transport path (20).

The brush oscillating device (30) is fixedly supported on a part of the airtight box (10), and the brush pin swinging device (30) is provided in the compartment located on the rear end side of the internal transport path (20). The brush (31) is mechanically intermittently driven through the rod, if necessary, by detecting the amount. The brush (31) has a large number of flexible fibers planted at its tip, and is rotatably supported by the airtight box (10) at its base. Further, the brush (31) is positioned so that its tip comes into contact with the pallet (60) conveyed on the internal conveyance path (20).

Then, in the brush (31) in the present embodiment, the first
As shown in the figure, a plurality of internal transport paths (20) are provided so as to be partitioned at predetermined intervals. As a result, each brush (31) will not be moved to the internal transport path unless it is driven by the brush rocking device (30).
It is in contact with the upper surface of the upper pallet (60) (20) and each brush
The conductor pin (70) located in the space (31) is prevented from moving to another section. That is, when each brush (31) is in contact with each pallet (60), the conductor pin (70) located in the part partitioned by each brush (31) is a pin insertion hole of the pallet (60). (63) It is not consumed other than entering. In this state, when each pallet (60) is sequentially sent forward, each brush
Since (31) is in contact with the upper surface of the pallet (60) on the internal transport path (20), it is inserted in the pallet (60) and its pin insertion hole (63) in a normal state. Conductor Pin (70)
Is sent forward while maintaining its inserted state, and the excess 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 passes beneath the brush (31), the brush (31) is still soft. This conductor pin (70) does not pop out from the pin insertion hole (63), and the conductor pin (70) is inserted into the pin insertion hole (63) as it is and is moved forward together with the pallet (60). It will be sent.

Also, like the conductor pin (70a) shown in FIG.
Pin insertion hole (63) of pallet (60) while passing under (31)
In the case where the head (72) is inserted into the inside (the insertion in the opposite direction is the normal insertion), the base is the pin insertion hole. Since it projects long from (63), the pallet (60) is sent and the brush (31)
It is easily removed from the pin insertion hole (63) by passing just below and is positioned on the pallet (60) extruded from the rear as shown in FIG. Since the action of each brush (31) is sequentially performed in a plurality of stages, in each pallet (60) located at the front end in the transport direction, each pallet (63) is placed in its pin insertion hole (63). The conductor pin (70) is completely inserted, and the pallet (60) has no surplus conductor pin (70) at all.

On the other hand, the brush rocking device (30) causes the brush (31) to move.
When each section is opened by swinging, the vibration is given to each conductor pin (70) by the vibrating device (13) so as to move to the rear, so that each conductor pin (70) is located behind each section. You can move into the compartment. That is, FIG. 3 and FIG.
As shown in the figure, the conductor pins (70) located on each pallet (60) are in the direction opposite to the conveying direction of the pallet (60),
That is, they are sequentially sent 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 sections 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 the conductor pin supply device (50) and The brush oscillating device (30) is driven. That is, the conductor pin (7
If (0) is not present in a predetermined amount or more, the conductor pin (70) will be in short supply unless it is additionally supplied, but the detection means for detecting this is the conductor pin supply device (50) and the brush oscillating device (50). By driving 30), the additional supply of the conductor pin 70 is performed.

The pallet (60), as shown in FIG.
1) and sub pallet (62)
It is integrated by fitting the sub pallet (62) on the (61). This integration is performed before the pin insertion device (100), and the pallet (60) thus integrated is transported to the internal transport path (20) by the pallet transport path (80A). To be done. In addition, corresponding pin insertion holes (63) are formed in each of the main pallet (61) and the sub pallet (62), and when the main pallet (61) and the sub pallet (62) are combined, these Each pin insertion hole (63) forms one hole as shown in FIGS. 3 and 4. 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) has a pin insertion hole (63 ). The main pallet (61) should have the pin insertion holes (6
A hole that does not correspond to 3) is formed, but this hole is a device different from the pin inserting device (100) and has a different shape from the conductor pin (70). Main pallet (6
It is to be inserted into the pin insertion hole (63) of 1).

(Effects of the Invention) As described in detail above, according to the present invention, as illustrated in the above-described embodiment, "the vibration device (13) is connected to the base frame (11) so that it can vibrate. The airtight boss (10) and the airtight box that is formed inside the airtight box (10).
It is connected to the pallet transport paths (80A) and (80B) arranged before and after (10), accommodates multiple pallets (60) that are sequentially transported, and communicates with the pin insertion holes (63) of each pallet. An internal transport path (20) having a possible opening (21) and a pallet (60) whose tip is transported on the internal transport path (20)
A plurality of brushes (31) that come into contact with the upper part to partition the internal conveyance path into a plurality of locations and are oscillated by the brush oscillating device (30), and the internal conveyance path (10) connected to the airtight box (10). 20), a decompression device (40) for keeping the inside of the airtight box (10) in a decompressed state, and a large number of conductor pins (70) on the pallet (60) conveyed on the internal conveyance path (20). ) Is provided with a conductor pin supplying device (50) '', whereby a large number of small and complicated conductor pins (70) are arranged in the order in which they are supplied in a pallet ( A pin insertion device (100) that can be reliably and automatically inserted into the pin insertion hole (63) of the (60) can be provided with a simple configuration. That is, the conductor pin (70) used for the electronic component mounting substrate is usually subjected to surface treatment (for example, solder plating),
(70) is easily scratched when a vibration is applied for a long time by a vibration device or the like, and is easily oxidized when exposed to air, but the pin insertion device (100) according to the present invention has the above-mentioned structure. Then, by sequentially moving each pallet (60) on the internal transport path (20) partitioned by the brush (31), the conductor pin (70) into the pin insertion hole (63) in each pallet (60). The insertion work of is repeatedly performed a plurality of times. This increases the chances that the conductor pin (70) is inserted into the pin insertion hole (63), so that the conductor pin (70) can be inserted efficiently.

In addition, the number of conductor pins (70) supplied to each pallet (60) can be made smaller than the total number of pin insertion holes (63). Therefore, since the conductor pins (70) do not interfere with each other, it is possible to prevent the occurrence of scratches and deformation, and to insert the pin insertion holes (63) efficiently and reliably and automatically in the order of supply. You can do it.

Furthermore, in this pin insertion device (100), the inner transfer part (20) is partitioned by the brush (31) so that the conductor pin (70) does not move into other partitions in this partition part. At the same time, the brush (31) is opened if necessary, so that 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 pins (70) sent on each pallet (60) on the front end side are supplied and the respective pin insertion holes ( It is inserted in 63). In other words, once the conductor pin supply device (50) is used, the pin insertion device (100)
The conductor pin (70) supplied therein is completely consumed at the end, and the conductor pin (70) is not placed in a state of being damaged or deformed. Therefore, according to this pin insertion device (100), each conductor pin (70) can be inserted into each pallet (60) in good quality, and the conductor pin (70) is not damaged or deformed. It can be securely inserted into the pallet (60) without causing any trouble.

Furthermore, in this pin insertion device (100),
Since the operation of (40) is always performed in a constant state, the depressurized state is the same for any opening (21) of the internal conveyance path (20). Therefore, the inner transport path (20) itself is lengthened to arrange a large number of pallets (60) or each pallet (6
Even if the transfer speed of (0) is increased, each opening (21) of the internal transfer path (20)
In this case, the depressurized condition required is not changed at all, and the conductor pin (70) can be efficiently inserted into the pallet (60).

In the pin inserting device (100) according to the present invention, the depressurizing device (40) can always be operated in a constant state, so that the pin inserting operation can be performed quietly and the pin inserting operation can be performed smoothly. Even when it is desired to increase the work speed, the pin inserting device (100) that is effective can be provided with a simple configuration. That is, even if the depressurizing device (40) is always operated in a constant state, it is configured so that it can be swept away by passing directly under the brush (31) in the brush oscillating device (30), so that excess or regulation is possible. Pin insertion hole in the outer state (63)
The conductor pin (70) inserted inside can be removed.

[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 an overall perspective view of an automatic manufacturing apparatus for electronic component mounting boards in which the pin inserting device is used, FIG. 3 and FIG.
The figure is a partially enlarged vertical cross-sectional view showing the state of each conductor pin which is changed by the operation of the brush, FIG. 5 is an exploded perspective view of the pallet, and FIG. 6 is to be inserted into the pin insertion hole of the pallet by this pin insertion device. Enlarged front view of conductor pin, No. 7
FIG. 8 is an enlarged top view of the same, FIG. 8 is an enlarged perspective view of an electronic component mounting board, and FIG. 9 is a partially enlarged side view schematically showing a positional relationship between a pallet and a conductor pin in this embodiment. Explanation of symbols 100 …… Pin insertion device, 10 …… Airtight box, 11 …… Base frame, 12 …… Suction port, 13 …… Vibration device, 20 …… Internal transport 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 connected to a pallet transport path formed in the airtight box and arranged in front of and behind the airtight box. In addition, a plurality of pallets that are sequentially transported are accommodated, and an internal transport path having an opening that can communicate with a pin insertion hole of each pallet, and a tip contacting the pallet transported on the internal transport path A plurality of brushes that divide the internal transport path into a plurality of locations and are oscillated by a brush oscillating device, and a depressurizing device that is connected to the airtight box and maintains a depressurized state inside the airtight box located below the internal transport path. A pin insertion device, comprising: a device; and a conductor pin supply device that supplies a large number of conductor pins onto the pallet conveyed on the internal conveyance path. 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.