JPH0445410B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a method for arranging a large number of wiring lead pins attached to electronic components such as semiconductor devices so that a large number of them are lined up vertically in a horizontal row. let me,
The present invention relates to an automatic pin alignment and transfer device for sequentially transferring the lead pins and the like row by row into a jig in which a large number of holes are formed in multiple rows while maintaining the alignment state.

[Prior Art] Conventionally, a parts feeder has been used when aligning a large number of pins in multiple rows and feeding them into a jig.

That is, a groove is cut on the exit side of the parts feeder, the head of the pin is hooked into the groove, and the parts are conveyed in a hanging state. Then, the pin was transported in a hanging state,
They are set in a horizontal line at predetermined intervals by means such as engaging a pair of threaded rods, and are then dropped and transferred into a jig in which holes are arranged at predetermined intervals.

Moreover, FIG. 10 shows a product alignment device described in Japanese Utility Model Application Publication No. 48-112068. According to this device, the product A falling vertically downward from the conduit tube 20 can be rotated by 90 degrees by the rotating group 1 to be leveled, and then turned laterally and sent out.

[Problem to be solved by the invention]

According to the conventional method, there was a problem in reliability when transferring the pin from the groove of the parts feeder to the threaded rod. Furthermore, when the pin is fed by a pair of threaded rods, the pin becomes deformed if it is pinched by the threaded portion. Furthermore, since the pins were in a suspended state, the pins were unstable, and there were also problems in positioning them with respect to the jig.

Although the device shown in FIG. 10 is a device that handles a large number of products, it is a direction changing device for changing the direction of vertically falling products horizontally.
It was not possible to solve the problem of arranging the pins in a horizontal line in a vertical position and reliably transferring them into the holes of the jig while maintaining the same position.

The present invention has been made in view of the above-mentioned problems and the recognition of the prior art.The present invention aims to hold a large number of pins vertically in a line and reliably transfer them to an accurately positioned jig. The purpose of the present invention is to provide an automatic pin transfer device with a compact configuration that allows the following.

[Means for Solving the Problems] The automatic pin alignment and transfer device of the present invention transports a large number of pins housed in a work case having a partition while applying vibration to the work case, and It has a pin supply device that drops and supplies the dispersed bottles at a predetermined position, a distribution box that is provided below the pin supply device and has a large number of distribution chambers, and that swings; a plurality of guide tubes in a row for guiding the pins downward; and at least a pair of upper and lower gates connected to the guide tubes; these gates are alternately opened and closed to remove the pins from the guide tubes. A gate device that sequentially drops and feeds a large number of the pins to be sent downward one row at a time, and a jig that applies a predetermined feeding motion to a jig into which the pins are transferred at a pin transfer position set below the gate device. The present invention is characterized by comprising a transfer device.

[Example] Examples of the present invention will be described below with reference to FIGS. 1 to 9.

FIG. 1 is a diagram showing the overall configuration of this device, and numeral 1 in the figure is a pin supply device. First, the configuration of the pin supply device 1 will be explained with reference to FIGS. 2 and 3.

An attachment base 2 is provided at the top of the support S attached to the frame body F of this device. A feeder 4 is attached to the inclined upper surface of the mounting base 2 via a coil spring 3, and the feeder 4 has a driving source 5 installed in an inclined manner. At the rear end of the feeder 4, approximately L
A letter-shaped transmission plate 6 is attached, and the transmission plate 6
A diaphragm 8 is attached to the top surface of the diaphragm 8 via the backing plates 7, 7, and the diaphragm 8 is held tilted at a predetermined angle with respect to the horizontal plane so that the front side in the moving direction of the transported object is higher. ing. The diaphragm 8 is connected to the pin P
It is used as a transport guide surface on which a work case W containing a work case W is placed and vibrated, and when the work case W is transported by a transport mechanism using pulleys, which will be described later. Guide plates 9, 9 for guiding the work case W are provided on both sides of the front end of the diaphragm 8 to protrude forward. Further, an L-shaped stopper 10 is provided on the upper surface of the rear end of the diaphragm 8.

On the other hand, pulley mounting plates 12, 12 are provided on the mounting base 2 via a substantially U-shaped mounting bracket 11. The pulley mounting plates 12, 12 are rectangular plates having long sides parallel to the conveying direction of the work case W, and are provided on both sides of the diaphragm 8, slightly below the diaphragm 8. A discharge side plate 13 spans over the front ends of the pulley mounting plates 12, 12 and is attached with bolts 13a, and the rear edge of the discharge side plate 13 is in contact with the front edge of the diaphragm 8. The upper surface of the discharge side plate 13 and the upper surface of the diaphragm 8 are configured to be located in the same plane, facing each other with a gap 14 in between. Further, the guide plates 9, 9 are in contact with the upper surface of both sides of the rear end of the discharge side plate 13, respectively. Furthermore, a slit 15 is formed at approximately the center of the discharge side plate 13, which is perpendicular to the conveying direction of the work case W. Although not shown, the slit 1
Below 5 is a pin P that has fallen from the slit 15.
A chute device is provided for collecting the waste.

A driving pulley 1 is mounted on the upper surface of the pulley mounting plates 12, 12 at the front and rear parts, respectively.
6, 16 and driven pulleys 17, 17 are provided, and are configured to be rotatable above the upper surface of the diaphragm 8. And drive pulley 1
Conveyor belts 18, 18 are wound between the driven pulleys 6, 16 and the driven pulleys 17, 17, respectively.

In addition, drive pulleys 16, 16 and driven pulley 1
Intermediate pulleys 19, 19 are provided at substantially intermediate positions between the pulleys 7, 17, respectively, and are attached to the pulley mounting plates 12, 12 via bearings 20, 20. The intermediate pulley 19 has an upper pulley 19a located above the rotation plane of the drive pulley 16, and a lower pulley 19b that rotates below the pulley mounting plate 12, and the upper pulley 19a each has a Small pulleys 16a, 16 coaxially attached to the upper surface of the drive pulleys 16, 16
It is configured to transmit driving force to a via belts 21, 21. A belt 22 is passed across the pair of lower pulleys 19a and 19b, and the lower pulley on the motor side, which is coaxially attached to one of the lower pulleys 19b, is connected to the speed control motor M1. Drive belt 2 is driven by pulley 23 connected to the shaft.
4 and is configured to be rotationally driven.

The work case W conveyed by the pin supply device 1 has a rectangular parallelepiped shape as shown in FIGS. 2 and 3, and has an outwardly projecting stepped portion formed in its upper half. The interior of the work case W is partitioned vertically and horizontally by partitions into a number of storage chambers, each of which has an open bottom. A large number of pins P are stored inside each of the storage chambers. In this embodiment, the pin P has a locking head whose diameter is larger than the outer diameter of its shaft, and is stored in the work case W with the head facing downward. . That is, when the work case W containing the pin P is placed on the diaphragm 8, the head of the pin P is in contact with the upper surface of the diaphragm 8.

Next, the diaphragm 8 and the discharge side plate 13
A sorting box 25 is provided below the gap 14 provided between. The upper end surface of the sorting box 25 is inclined, and a gap of an appropriate width is provided between the diaphragm 8 and both lower surfaces of the discharge side plate 13. Also, sorting box 25
The length of is set to be larger than the interval between the pair of guide plates 9, 9. As shown in FIGS. 4 and 5, the inside of the sorting box 25 is a vertically penetrating cavity, and a partition plate 26 is used to separate a large number of work cases W arranged in a direction perpendicular to the transport direction. It is divided into a distribution room 27. Then, the upper opening of the distribution chamber 27 is connected to the gap 14.
It is designed to face the

A metal plate 25a is attached to the rear surface of the sorting box 25, and a slide member 28 to which a magnet 28a is attached is fixed to the metal plate 25a by a magnet. The slide member 28 is
It is a member having a substantially L-shaped center cross section, and one end of a coil spring 29 is fixed to the rear end of the lower piece.
The other end of the coil spring 29 is attached to the mounting base 2.
It is fixed to a bracket 30 attached to the horizontal surface of. Further, both side edges of the lower piece of the slide member 28 are engaged with grooves 31a of a guide rail 31 fixed to the bracket 30.

The upper portion of the slide member 28 projects outward from the guide rail 31.

On the other hand, a speed control motor M2 is attached to the bracket 30 so that its drive shaft 32 is vertical. The drive shaft 32 includes:
A disc-shaped cam 33 is attached with a key 32a. The cam 33 is in contact with the rear end surface of the lower piece of the slide member 28, and the sorting box 25 is configured to swing back and forth by driving the speed control motor M2. There is.

Next, the top surface of the upper support 34 is in contact with the bottom surface of the opening of the sorting box 25. The upper support 34 is a box-shaped member attached to the bracket 30 via a hanger 35, and has a through hole 36 extending vertically (in the direction perpendicular to the plane of the paper in FIGS. 1 and 5). ) are provided in many rows. The through hole 36 has an inner diameter that allows the pins P to pass through one by one, and an introduction part 36a with an enlarged diameter is formed at the upper opening of the through hole 36 so that the pin P can easily enter therein. Guide tubes 37 for the pins P are connected to the lower openings of the through holes 36 via joint tubes 34a. The guide tube 37 is made of a flexible material, and in this embodiment, Teflon resin is used. Further, the inner diameter of the guide tube 37 is set to such an extent that each pin P can pass therethrough.

The lower ends of the guide tubes 37 are connected and communicated with through holes 39 formed in the lower support 38, respectively. The lower support 38 is attached to an upper plate 41 of a stand 40, which will be described later, and which is installed on the frame body F of the device. Guide supports 42 are erected on the upper surface of both ends in the longitudinal direction (horizontal direction in FIG. 6) of the lower support 38, and are arranged in a line by guide plates 43 fixed to the guide supports 42. A large number of guide tubes 37 are held.

Next, below the lower support 38,
Gate device 4 provided on the stand 40
4th prize will be explained.

As shown in FIGS. 6 to 8, a base plate 45 is fixed on the frame body F of this device. The base plate 45 has two approximately trapezoidal side plates 4.
6, 46 and two cover plates 47, 47 are attached, and a top plate 41 is provided between the side plates 46, 46 to form a box-shaped stand 40. And between the upper plate 41 and the base plate 45,
A pair of stand plates 48, 48 are attached. At the upper and lower parts of the stand plate 48, there are a pair of horizontal slide grooves A1, B1, arranged vertically.
A2 and B2 are formed respectively, and both slide grooves A1, B1, A2, and B2 are connected by vertical grooves C1 and C2 formed in the center portion. A first gate 49 is attached to the uppermost slide groove A1.

The first gate 49 is a pair of rectangular gate plates 4
9a, 49b, both gate plates 49a, 49
b has a gap set to be approximately the same as the outer diameter of the shaft portion of the pin P in the closed position. Further, a recess 50 is formed in the center of the upper surface of both the combined gate plates 49a and 49b. The recess 50
The lower surface of the lower support 38 is in contact with the bottom surface of the lower support 38, and the through holes 3 of the lower support 38 arranged in a row are in contact with the bottom surface of the lower support 38.
9 is configured to be located above the gap between the gate plates 49a and 49b. Gate plate 49a,
A circular cam follower 5 is provided on both left and right end surfaces of 49b.
1 are rotatably attached, two each, and are engaged with the slide groove A1. Further, guide grooves 52, 52 are formed on the left and right ends of the upper surfaces of the gate plates 49a, 49b, and positioning plates 53, 53 attached to the stand plates 48, 48 are formed in the guide grooves 52, 52. is engaged.

A stand plate 4 is provided on the lower surface of the first gate 49.
The upper surface of an intermediate guide 54 attached between the intermediate guides 8 and 48 is in contact with each other.

The intermediate guide 54 is divided into two parts.
The same number of through holes 55 as the guide tubes 37 are formed in a row at the same spacing as the guide tubes 37 on the mating surfaces of the splits, and the inner diameter of the through holes 55 is set to such an extent that the pins P can pass through them one by one. There is. Further, the length of the through hole 55 (that is, the height of the intermediate guide 54) is set smaller than the length of the pin P, and even if the height of the gap of the first gate 49 is added, the pin P is configured to be longer.

The lower surface of the intermediate guide 54 is in contact with the upper surface of the second gate 56 . The second gate 56 is made up of a pair of rectangular gate plates 56a and 56b, and in the closed position, there is a gap between the two gate plates 56a and 56b that has approximately the same size as the outer diameter of the shaft of the pin P. It is constructed in such a way that there is a gap. The through hole 55 of the intermediate guide 54 is connected to the gate plates 56a and 5.
It is configured to be located above the gap 6b. On both left and right end surfaces of the gate plates 56a and 56b,
Two circular cam followers 51 each,
The slide groove B1 is rotatably provided.
is engaged in. In addition, gate plates 56a, 56b
Guide grooves 57, 57 are formed at the left and right end portions of the lower surface, and positioning plates 58, 58 attached to the stand plates 48, 48 are engaged with the guide grooves 57, 57. .

By the way, two pieces 59, 59 are attached to both the upper and lower parts of the longitudinal groove C1, with their triangular tips facing both the upper and lower directions. Frame 5
The tips of 9 and 59 are connected to the first gate 49, respectively.
and two cam followers 5 inside the second gate 56
1,51. A cam 60 is in contact with the rear end surfaces of the pieces 59, 59, and the cam 60 is
An upper cam shaft 6 is rotatably supported by side plates 46, 46 and stand plates 48, 48, respectively.
It is fixedly installed at 1,61. The cam 60 has a substantially circular shape except for having one protrusion, and alternately presses the pieces 59, 59 to open the first gate 4.
9 and the second gate 56 are opened and closed alternately. Note that each gate plate of the first gate 49 and the second gate 56 is always given a force in the gate closing direction by a biasing member 62 attached to the stand plates 48 and 48.

The upper camshaft 61 has a gear 63 and a pulley 6.
4 is attached, and the gear 63 is connected to the countershaft 65 provided between the stand plates 48, 48.
It is meshed with a gear 66 fixed to the. Further, the countershaft 65 is provided with a pulley 67, and the pulley 67 is connected to the first index 6, which is a device that performs intermittent motion such as a Geneva mechanism.
It is interlocked and connected to a pulley 69 provided at 8 via a belt 70. On the other hand, a pulley 64 attached to the upper camshaft 61 is connected to a third gate 8 which will be described later.
8 and the closing mechanism of the fourth gate 94 via a belt 71.

Next, a stand plate 4 is attached to the bottom surface of the second gate 56.
The upper surface of the intermediate guide 72 attached between the intermediate guides 8 and 48 is in contact with each other. This intermediate guide 72 has approximately the same configuration as the intermediate guide 54, but has a height of
Unlike the intermediate guide 54, the length is set to be slightly smaller than the length of the pin P. The through holes 73 arranged in a row are arranged in the second gate 5.
It is configured to be located directly below the gap No. 6.

A drum 74 is provided below the intermediate guide 72. That is, the stand plate 4
Circular bearing cases 75, 75 are attached to substantially central portions of 8, 48, and bearings 76, 75 held by bearing cases 75, 75,
The shaft 7 with the drum 74 inserted between them
7 is rotatably installed. shaft 77
A pulley 78 is provided at the end of the index 68, and is configured to interlock with a second index 80 having a similar structure to the first index 68 via a belt 79. A presser flange 81 is fixed to one end surface of the drum 74 with bolts, and the presser flange 81 is attached to the shaft 7.
7 is attached with bolts. On the other hand, a shaft collar 8 fixed to the shaft 77 is disposed between the other end surface of the drum 74 and the bearing 76.
2 is interposed and held in place by a drum 74.

In the drum 74, the same number of pin holding holes 83 as the through holes 73 of the intermediate guide 72 are formed in a line parallel to the shaft 77 at the same intervals as the through holes 73. As shown in FIG. 7, the pin holding hole 83 is
They are formed radially from the center of the drum 74,
Eight rows are provided at 45° intervals. Then, each pin holding hole 83 in each row corresponds to each through hole 73 of the intermediate guide 72 when the pin holding hole 83 is located at an upper position in the vertical direction.
It is configured to face the Further, the depth of the pin holding hole 83 is set to such an extent that one pin P can be held, and the opening of the pin holding hole 83 is formed to have an enlarged diameter so that the pin P can easily enter therein.

In the lower half portion of the drum 74,
A drum cover 84 having an arcuate cross section is provided in the front half of the drum 74 in the forward half thereof in the vicinity of the side peripheral surface of the drum 74 . Further, a drum lower guide 85 is provided at a position facing the lower end edge of the drum cover 84, and a large number of pins P falling from the pin holding holes 83 of the drum 74 in one row and one set are provided below. The intermediate guide 86 is configured to be guided to the intermediate guide 86.

The intermediate guide 86 has the same configuration as the intermediate guide 72, and its lower surface is in contact with the upper surface of the third gate 88. The third gate 88 includes a pair of rectangular gate plates 88a and 88b. A large number of semicircular grooves reaching both the upper and lower surfaces of the gate plates 88a and 88b are formed on the opposing end surfaces of both the gate plates 88a and 88b.
At the closed position of the gate where the end surfaces of both gate plates 88a, 88b are brought into close contact, both gate plates 88a, 88b are closed.
Guide holes 89 having substantially the same dimensions as the outer diameter of the shaft portion of the pin P are arranged in a line between the guide holes 8b. Note that the upper opening of the guide hole 89 is formed with an enlarged diameter introduction part for the pin. The guide hole 89 is connected to the through hole 87 of the intermediate guide 86.
They are provided in the same number and at the same intervals, and face the through holes 87, respectively. In addition, the gate plate 88
Two circular cam followers 51 are rotatably provided on both left and right end surfaces of a and 88b, and are engaged with the slide groove A2.
Further, guide grooves 90, 90 are formed at the left and right ends of the lower surfaces of the gate plates 88a, 88b, and positioning plates 91, 91 attached to the stand plates 48, 48 are formed in the guide grooves 90, 90. is engaged.

The lower surface of the third gate 88 is in contact with the upper surface of the intermediate guide 92 . The intermediate guide 92 has the same configuration as the intermediate guides 72 and 86, and its lower surface is in contact with the upper surface of the fourth gate 94. Fourth
Since the gate 94 has substantially the same structure as the third gate 88, the reference numeral will be given and the explanation of the structure will be omitted.

By the way, the opening/closing mechanism of the third gate 88 and the fourth gate 94 is similar to that of the first gate 49 and the second gate 56, as shown in FIGS. 6 and 8.
However, the lower camshaft 95 has no gears and only a pulley 96 is attached to it, and the upper camshaft 6
It is configured to be rotationally driven in synchronization with 1. Other components will be designated by reference numerals and their descriptions will be omitted.

Next, the jig transfer device provided below the fourth gate 94 and the jig 97 transferred by the jig transfer device will be explained.

The jig 97 into which the pin P is transferred has a rectangular parallelepiped shape, and a convex portion 97a for holding the jig 97 is formed at the upper portion of the short side. On the top surface of the jig 97, the same number of transfer holes 98 as the number of installed guide tubes 37 are formed in a row parallel to the longitudinal direction of the jig, and the rows of transfer holes 98 are arranged at predetermined intervals. They are arranged in multiple rows. The inner diameter of the transfer hole 98 is set to be approximately equal to the outer diameter of the shaft portion of the pin P, and the head of the transferred pin P is configured to be locked at the entrance of the transfer hole 98. .

As shown in FIG. 1, a carry-in conveyor 99 is provided on the lower left side of the stand 40. The carry-in conveyor 99 consists of a pair of conveyors that are arranged parallel to each other and whose synchronous operation is controlled in the same direction by a drive source (not shown). Then, the jig 97 is placed on the pair of conveyors and conveyed to the right. A limit switch LS1 is provided at the end of the carry-in conveyor 99 in the conveyance direction, and the limit switch LS1 is activated by the jig 97 conveyed to the jig receiving position A to stop the drive of the carry-in conveyor 99. The connections are configured as follows.

A jig transfer device is installed on the right side of the carry-in conveyor 99 and below the stand 40. A cylinder 101 is attached upward at the center of the upper plate of a frame 100 fixed to the frame body F of the apparatus. Rod 101a of the cylinder 101
At the tip of the shaft is a shaft feeding device 1 as a jig transfer device.
02 is installed. A pair of guide shafts 104 are provided on the lower surface of the bed 103, one at the front and the other at the rear in the feeding direction. The guide shaft 104 is inserted into a guide hole 100a formed in the frame 100, and is configured such that the entire shaft feeding device 102 can be moved up and down by the operation of the cylinder 101. The bed 103 is provided with a pair of guide rods (not shown) parallel to the conveying direction of the jig 97, and a ball screw 105 is provided between the guide rods in parallel with the guide rods. The ball screw 105 is operatively connected to a stepping motor M3 attached to the outer surface of the bed 103.

A moving table 106 is provided above the bed 103 and is guided by the guide rod and moved by the ball screw 105. Furthermore, limit switches LS2 and LS3 are provided on both left and right sides of the upper surface of the bed 103 in order to detect the position of a moving table 106, which will be described later. A cylinder 107 is provided at the center of the upper surface of the moving table 106, and the rod 10 of the cylinder 107
A common base 108 is attached to the tip of 7a. A pair of linear bearings 109 are provided on the upper surface of the movable table 106 with the cylinder 107 in between, and a pair of shafts 11 fixed on the lower surface of the common base 108 are provided.
0 is inserted through each. As shown in FIGS. 1 and 6, a pair of bracket plates 111, 111 are attached to both ends of the common base 108, facing each other parallel to the feeding direction of the jig 97 of the carry-in conveyor 99. Clamp cylinders 112, 112 are provided at the upper ends of the bracket plates 111, 111. The clamp cylinders 112, 112 both have rod tips facing inward, and are configured to clamp the jig 97 by means of clamp members 113, 113 attached to the rod tips.

A carry-out conveyor 114 is provided on the upper right side of the shaft feeding device 102 . Unloading conveyor 1
14 consists of a pair of conveyors that are driven by a drive source (not shown) and are arranged parallel to each other, and both left and right ends of the jig 97 into which the pin P is inserted are placed on the pair of conveyors. and then carry it out to the right. At the left end of the carry-out conveyor 114, which is the feeding operation start position, when the limit switch LS3 of the shaft feeding device 102 is activated, the carry-in conveyor 114 stops and the jig 97 held by the clamp cylinders 112, 112 is moved. The jig is placed and configured at the jig delivery position C so that it can be stably placed on the delivery conveyor 114.

Next, this device is equipped with a pair of photo sensors PH
1, PH2 is provided. One of the photo sensors PH1 has an optical path set between the intermediate guide 72 and the drum 74, and is interlocked with the operation of each of the indexes 68 and 80. The other photo sensor PH2 has an optical path set directly below the fourth gate 94, and is interlocked with the operation of the respective indexes 68, 80 and the cylinder 101.

Next, the operation of the configuration described above will be explained.

First, a large number of pins P are stored in each storage chamber of the work case W so that their respective heads are on the opening side. Then, the work case W is placed on the diaphragm 8 of the pin supply device 1 with the opening of the storage chamber facing down, and is held between the conveyor belts 18, 18. The number of work cases to be set can be arbitrarily determined depending on the number of pins P to be processed, and FIG. 3 shows an example in which four work cases W are placed.

Next, when the drive source 5 is started, the feeder 4 begins to vibrate while being restrained by the coil spring 3 on the mounting base 2. This vibration is transmitted to the diaphragm 8 via the transmission plate 6, causing the pin P housed in the work case W to vibrate. Because of this vibration, the pins P are not concentrated in one place in the storage chamber, but are evenly distributed and conveyed.

Next, the speed control motor M1 is started in a predetermined rotation direction. The driving force of the speed control motor M1 is transmitted to the motor-side lower pulley of one of the intermediate pulleys 19 via the drive belt 24, thereby rotating the intermediate pulley 19. The rotational force of the intermediate pulley is generated by the belt 22 and the lower pulley 19.
b, 19b to the other intermediate pulley 19,
It is transmitted by reversing the direction of rotation. Both intermediate pulleys 19, 19 connect to both drive pulleys 16, 16 via belts 21, 21 and small pulleys 16a, 16a.
rotate them in opposite directions. Therefore, the conveyor belts 18, 18 are wound around both driving pulleys 16, 16 and both driven pulleys 17, 17, respectively.
will move synchronously in the same direction (rightward in FIG. 2).

The work case W is moved on the upper surface of the diaphragm 8 in the direction of the gap 14 (to the right in FIGS. 1 to 3) by the conveyor belts 18, 18 while being vibrated by the feeder 4. It will be revealed. Vibration plate 8
In front of the work case W, the guide plate 9,
Guided by 9, it moves forward and reaches the top of the gap 14. Then, the pins P of the work case W pass through the gap 14 and fall downward with their heads down, while being appropriately dispersed by the vibration of the feeder 4.

When all the stored pins P fall, the work case W is sent out to the discharge side plate 13. Moreover, at this time, if the pin P remains in the sent-out work case W, this pin P falls from the slit 15 and is collected by a chute device (not shown) below the slit 15. It turns out.

Next, the pin P that has fallen from the gap 14 enters the sorting chamber 27 of the sorting box 25. At this time,
The speed control motor M2 rotates a cam 33, and the cam 33 swings the sorting box 25 back and forth via the slide member 28. Therefore, the fallen pin P is transferred to each sorting room 2.
Several of them are held on the inner wall of No. 7, and they fall downward one after another.

Next, the pins P in the sorting box 25 pass through the introduction part 36a of the upper support 34, enter the through hole 36 one by one, and fall downward in the guide tube 37 one after another. Then, the pin P passes through the through hole 39 of the lower support 38 with its head down and reaches above the gap of the closed first gate 49. Next, the first index 68 is driven. . The driving force of the first index 68 rotates the pulley 67 via the belt 70 and the countershaft 6
Rotate 5. Rotation of the countershaft 65 is transmitted to the upper camshaft 61 by gears 63 and 66, causing the cam 60 to rotate. As shown in FIG. 9, the cam 60 rotates clockwise and lifts the upper piece 59 upward along the vertical groove C1, and the piece 59 moves the cam followers 51, 51 of the gate plates 49a, 49b. , press outward horizontally. Therefore, the gate plates 49a, 49b
are the slide groove A1 and the guide grooves 52 and 5, respectively.
2, the first gate 4 moves outward in the horizontal direction against the pressing force of the biasing member 62.
9 is opened.

When the first gate 49 opens, the pins P in the first row are
It enters the through hole 55 of the intermediate guide 54 and reaches above the gap of the second gate 56. At the same time, the pins P of the succeeding row descend into the through holes 39 of the lower support 38 with their heads attached to the tips of the leading pins P.

Due to the rotation of the first index 68, the cam 60
When further rotates, the gate plates 49a, 49b are moved inward by the pressing force of the biasing member 62, causing the upper piece 59 to slide downward. Then, the first gate 49 is closed, but
The head of the pin P in the subsequent row is just the first gate 4.
9, the pins P of the subsequent row are left above the gap of the closed first gate 49.

When the cam 60 rotates further, the cam 60 presses the other (lower plate) piece 59 downward along the vertical groove C1. The lower piece 59 presses the cam followers 51, 51 of the gate plates 56a, 56b horizontally outward, and the gate plates 56a,
56 to the slide groove B1 and the guide groove 5, respectively.
7, 57, and is moved horizontally outward against the force of the biasing member 62. As a result, when the second gate 56 is opened, the many pins P in one row that were held one by one in the through holes 55 of the intermediate guide 54 fall downward, and the pins P in the subsequent row It falls onto the top surface of the first gate 49.
On the other hand, the preceding pins P pass through the through holes 73 of the intermediate guide 72 and are housed in the pin holding holes 83 located above the drum 74 in the vertical direction, with their heads facing down.

In accordance with the operation of the drum 74 and gate device 44,
The second index 80 rotates it by 45 degrees. Pin holding hole 83 in which pin P is stored
However, even if the pin P is horizontal and faces downward, the pin P is held by the drum cover 84 and will not fall to the outside. Then, when the pin holding hole 83 rotates 180° and becomes vertical again at the lower part, the pins P in one row pass between the drum cover 84 and the drum bottom 85 with their heads facing up, and the pins P pass through the middle guide 86. It enters the through hole 87.

The row of pins P is inserted into each guide hole 89 of the third gate 88, and the head is locked in the introduction part, and the tip part is inserted into the through hole 9 of the intermediate guide 92.
Drop within 3. Here, since the rotation of the upper camshaft 61 is transmitted to the lower camshaft 95 via the pulleys 64, 96 and the belt 71, the third
The gate 88 and the fourth gate 94 are connected to the first gate 4
9 and the second gate 56, the opening and closing operations are performed.

When the third gate 88 opens, the row of pins P
passes through the through hole 93 of the intermediate guide 92 and is suspended with its head secured to the upper surface of the fourth gate 94. At this time, a jig 97 is positioned at a pin transfer position B directly below the fourth gate 94, and the tips of the pins P in the first row are accurately inserted into the transfer holes 98 in the first row. After the third gate 88 is closed, the fourth gate 94 is opened and the drum 74 is rotated at a 45° angle.
Rotate. The pins P in the first row are inserted into the respective transfer holes 98 in the first row of the jig 97, and the pins P in the subsequent row are held by locking their heads on the upper surface of the third gate 88. Note that when the pin P is caught between the fourth gate 94 and the jig 97, the photo sensor PH2 outputs a signal and the cylinder 10
Activate 1. As a result, the jig 97 is lowered together with the shaft feeding device 102, so that the pin P can be easily removed. Furthermore, both the indexes 68 and 80 are the same as those for both photo sensors PH1 and PH.
Since it is designed to operate only when pin 2 is off, if pin P gets caught, etc.
The opening and closing of the gate device 44 and the rotation of the drum 74 are stopped.

Next, as shown in FIG. 1, the jig 97 is carried to the right by the carry-in conveyor 99. The jig 97 reaches the jig receiving position A and the limit switch is activated.
When LS1 is activated, the carry-in conveyor 99 is stopped. Next, the clamp cylinder 11 of the movable table 106 stopped at the jig receiving position A
2,112 is driven, and the clamp member 113,1
13 is locked to the protrusion 97a of the jig 97. Then, the cylinder 107 is driven, the common base 108 is raised, and the clamped jig 97 is
It is lifted to a predetermined height.

Next, the stepping motor M3 is driven, and the ball screw 105 is rotationally driven. As a result, the moving table 106 moves to the right, and the jig 97
transport. Transfer hole 98 in the first row of jig 97
However, when the pin transfer position B is reached, the moving table 106 stops. Then, as described above, the operation of transferring the pin P to the jig 97 is repeated. At this time, many pins P
, the stepping motor M3 is driven to rotate by a predetermined angle every time one line is transferred. Therefore, jig 9
7 is a transfer hole 9 for each transfer operation of pin P.
Since the feeding operation is applied by the pitch of the 8 rows, the pins P are transferred into the jig 97 one after another row by row.

When the pins P are inserted into all the transfer holes 98, the transfer operation of the pins P is stopped. Then, the stepping motor M3 rotates, and the moving table 106 is driven to the right. moving table 1
06 operates the limit switch LS3 at the jig delivery position C, the rotation of the stepping motor M3 is stopped. And cylinder 1
07 is activated to lower the jig 97, and the jig 97
is placed on the carry-out conveyor 114, and the clamp member 113 is removed. The jig 97 is carried out to the right by the carry-out conveyor 114.

Next, the moving table 106 moves to the left. When the moving table 106 reaches the jig receiving position A and the limit switch LS2 is activated, the stepping motor M3 is stopped. Then, in the same manner, the jig 97 is conveyed and fed, and the pin P
The transfer operation is repeated.

[Effects of the Invention] As explained above, according to the present invention, a large number of pins are dispersed and introduced into a number of vertical guide tubes in a row using a pin supply device and a sorting box, and the pins are introduced into a gate device. Therefore, the pins arranged horizontally in a vertical state are fed row by row into a jig, and the jig is further provided with a feeding motion by a jig transfer device.

Therefore, according to the present invention, it is possible to automatically align a large number of pins in a horizontal row in a vertical state and reliably transfer them to the jig one by one row by row while maintaining the same posture, so that work efficiency is very high. Furthermore, since the device of the present invention can be constructed in a small size, it can be installed in a relatively narrow space, and has the effect of being extremely economical from the standpoint of space saving.

[Brief explanation of drawings]

Fig. 1 is a front end configuration diagram of an embodiment of the present invention, Fig. 2 is a plan view of a pin supply device in an embodiment, Fig. 3 is a front view thereof, and Fig. 4 is a diagram of a pin supply device in an embodiment. A plan view showing the configuration of the sorting boxes, etc., FIG. 5 is a sectional view taken along the line - - in FIG. 4, and FIG.
FIG. 7 is a partially cutaway side view showing the structure of the gate device and drum in one embodiment, and FIG.
The figures are a front view of a gate device and a drum in one embodiment, FIG. 9 is an enlarged view of the opening/closing mechanism of the gate device, and FIG. 10 is a perspective view of a conventional product alignment device. 1... Pin supply device, 25... Sorting box, 2
7... Sorting room, 37... Guide pipe, 44... Gate device, 49... First gate, 56... Second gate, 88... Third gate, 94... Fourth gate, 97... Treatment Tool, 102... Axial feed device as a jig transfer device, P... Pin, W... Work case.

Claims (1)

[Scope of Claims] 1. The work case is conveyed while applying vibration to a large number of pins housed in a work case having a partition, and the bottles dispersed by the vibration are dropped at predetermined positions and supplied. a pin supply device having a large number of distribution chambers, a swinging sorting box provided below the pin feeding device, and a large number of pins in a row provided below the sorting box guiding the pins downward. a guide tube, and at least a pair of upper and lower gates connected to the guide tube, and these gates are alternately opened and closed to sequentially pass a large number of pins sent from the guide tube in each row. The present invention is characterized by comprising: a gate device that supplies the pins by falling downward; and a jig transfer device that applies a predetermined feeding motion to a jig into which the pin is transferred at a pin transfer position set below the gate device. Automatic pin alignment transfer device.