JPH04327420A - Conveyor device for electronic parts - Google Patents

Abstract

PURPOSE:To provide an electronic parts conveyor device capable of conveying electronic parts stably at high speed without clamping the electronic parts mechanically or using adhesive or the like, with high freedom in the carrier direction. CONSTITUTION:A holding groove 3 is formed in the width direction at the peripheral part of a timing belt 1, and the lead terminal 6 of an electronic component 5 is fittingly held in this holding groove 3. A permanent magnet is fitted to a rail for guiding the timing belt 1, and the lead terminal 6 of the electronic component 5 is attraction held to the holding groove 3 of the timing belt 1 by the magnetic force of the permanent magnet. This prevents the fall and position shift of the electronic component 5 caused by the inertial force during intermittent conveyance so as to enable the stable conveyance of the electronic component 5 not only in the horizontal carrier direction but also in the vertical or circular carrier direction.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for continuously conveying electronic components at a constant pitch when measuring, sorting, taping, etc. the characteristics of electronic components using an automatic machine.

0002

[Prior Art] Conventionally, when manufacturing taping-type electronic components equipped with round bar-shaped lead terminals, the lead terminals are inserted and held in a backing tape in which notches are formed in advance, and each electronic component element is inserted and held in this state. Attach it to the lead terminal and complete the electronic component on the mount. Then, while transporting this group of electronic components together with the mount tape, characteristics are measured and sorted, and then the electronic components are taped. Therefore, the individual electronic components have the advantage of being stably held by the backing tape during transportation, but since the electronic components cannot be taken out directly above the backing tape, it is difficult to operate during taping, and the taping ends. If so, the disadvantage is that the backing tape cannot be reused. On the other hand, in the case of electronic components with flat lead terminals formed from hoop material,
After completing the electronic component by attaching the electronic component element to the lead terminal (lead frame) that is integrally formed from the hoop material, it is transported to the conveyance system where it is separated into individual electronic components. Mounting tape cannot be used. Therefore, conventionally, work holders are attached at constant pitch intervals to an endless chain that is transported intermittently, and electronic components are accommodated and held in recesses formed in the work holders that are open at the top.

0003

[Problems to be Solved by the Invention] However, since the electronic components are simply housed in the recesses of the work holder, the electronic components may become misaligned on the work holder due to the inertial force that acts during intermittent feeding. , there was a risk that the workpiece would jump out of the workholder, fall, etc. Furthermore, if an electronic component is conveyed vertically or in an arcuate direction, it is impossible to prevent the electronic component from falling from the work holder or being misaligned. Therefore, the conveying direction is limited to the horizontal direction, and there is a drawback that the degree of freedom in the conveying direction is small.

In order to securely hold electronic components on a work holder, some work holders are equipped with a clamp mechanism that mechanically clamps the electronic components. This complicates the structure, increases weight, and the clamping mechanism may damage electronic components. Furthermore, since the clamp must be released when taking out the electronic parts from the work holder, there is also the drawback that the electronic parts cannot be taken out easily. On the other hand, there is a method of transporting electronic components by attaching them to paper tape or the like using an adhesive, but since adhesives and paper tape cannot be used repeatedly, it is costly and there is a risk that the adhesive may adhere to the electronic components. Yes, it is not practical.

Therefore, an object of the present invention is to provide an electronic device that can transport electronic components stably and at high speed without mechanically clamping the electronic components or using adhesives, and which has a high degree of freedom in the transportation direction. The purpose of the present invention is to provide a parts transport device.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an apparatus for conveying electronic components, which are partially or completely made of magnetic material, one by one at constant pitch intervals. A conveyance means formed at a constant pitch and provided with holding parts that fit and hold part or all of the electronic component and do not restrain the electronic component in the direction perpendicular to the conveyance surface, and The present invention is characterized in that it includes a drive means that drives at a pitch, and a magnet means that attracts the magnetic portion of the electronic component in a direction in which the electronic component is held in the holding portion.

Although the holder of the conveyance means prevents the electronic component from shifting in the lateral direction, the holder does not restrain the electronic component in the direction perpendicular to the conveyance surface, so the electronic component is prevented from shifting due to inertia during intermittent conveyance. It is not possible to prevent the surface from rising. Therefore, a part or all of the electronic component is provided with a magnetic material, and the magnetic material portion is attracted toward the holding section by a magnet means to prevent the electronic component from floating up from the holding section. It is desirable that this suction force be made sufficiently stronger than the inertia force that acts on the electronic components during intermittent feeding. Examples of electronic components used in the present invention include electronic components having magnetic lead terminals,
These include chip components with magnetic external electrodes, electronic components with magnetic cases, and the like. Furthermore, the magnet means includes not only permanent magnets but also electromagnets. Since the electronic component is suctioned and held by the transport means during transport, the transport direction may be not only the horizontal direction but also the vertical direction or the arcuate direction, providing a high degree of freedom in the transport direction. Magnetic attraction does not deteriorate like adhesives even after multiple uses, and there is no risk of damaging electronic components like mechanical clamps. Furthermore, since the holding section does not restrain the electronic component in a direction perpendicular to the transport surface, it is easy to take out the electronic component from the transport system.

When the electronic component is a radial lead component, it is desirable to use a non-magnetic timing belt as a conveyance means, which has holding grooves formed at a constant pitch in the width direction on the outer circumferential surface for fitting and holding the lead terminals in a horizontal state. . The timing belt is slidably guided between the rails. A magnet is attached to this rail, and the magnetic force of the magnet acts on the lead terminal as an attractive force in the direction of the holding groove. Since the internal teeth of the timing belt mesh with the drive pulley, parts can be fed with high precision according to the rotation angle of the drive pulley. Further, since the timing belt can be configured to be much lighter than other conveyance means such as a chain, the inertia of the entire conveyance system is small, allowing high-speed conveyance, and with less vibration and noise. Further, since the timing belt is made of a rubber-like elastic body, it is desirable because it can reduce the shock applied to the electronic components and does not damage the electronic components.

Conventionally, when a series of manufacturing equipment includes a plurality of processes with different processing times, the processing speed of the entire equipment is adjusted to the process that takes the longest, resulting in slow processing speed and poor efficiency. In order to improve the processing speed, a plurality of tasks that require processing time can be processed at the same time, and the feed pitch for this part can be increased. However, in this case, processes with different feed pitches coexist in one conveyance system, for example, 1 pitch interval in a process with a short processing time, and 10 pitch intervals in a process with a long processing time, and the feed pitch It is necessary to provide a mechanism to absorb the difference in feed pitch between different processes.

In the present invention, by providing a mechanism for absorbing the difference in feed pitch in the vertical direction, that is, a buffer means, the processing speed of the entire equipment is increased and the installation space is shortened. However, when transporting radial lead components using a timing belt, the radial lead components tend to fall off the timing belt when the timing belt is moved in the vertical direction by the buffer means. Therefore,
This buffer means includes a movable member that is movable in the vertical direction, a biasing member that always biases the movable member upward, and a movable member that is rotatably attached to the upper end of the movable member and supports the inner peripheral portion of the timing belt. In addition, there is a pulley equipped with a magnet that attracts the lead terminal of the electronic component in the direction of the holding groove of the timing belt, and a pulley that is installed vertically on both the front and rear sides of the movable member and slidably guides the inner circumference of the timing belt. At the same time, it is constructed with a rail attached with a magnet that attracts lead terminals of electronic components in the direction of the holding groove of the timing belt. As a result, while the timing belt passes through the buffer means, the lead terminal is held in the holding groove of the timing belt by the attraction force of the magnet, so there is no risk of electronic components falling off the timing belt or becoming misaligned. . Furthermore, since the buffer means has a large capacity to absorb feed pitch differences, two processes having very large feed pitch differences can be placed adjacent to each other, and the degree of freedom in process arrangement is greatly improved.

In addition to the above-mentioned timing belt, the conveyance means may also be composed of a chain and work holders attached to the chain at a constant pitch. In this case, it is desirable to form a holding groove in the work holder to fit and hold the lead terminal of the electronic component, and to attach a permanent magnet that attracts the lead terminal in the direction of fitting into the holding groove. This can prevent electronic components from falling or shifting during intermittent conveyance or when the conveyance direction changes.

0012

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1(a) and 1(b) are overall schematic diagrams of a conveying apparatus according to the present invention. The conveyance device performs a loading process A that takes in electronic components integrated into a hoop-shaped lead frame from the front, a cutting process B that separates individual electronic components from the lead frame, and a measurement process that measures the electrical characteristics of each electronic component. marking process E, which prints on the main body of the electronic component using a laser marker, etc., NG extraction process F, which takes out products with defective characteristics, rank cutting process G, which divides electronic components into multiple ranks, electronic component The process includes a taping process H for taping the lead terminals.

One endless timing belt 1 shown in FIG. 2 is wound around each of the above steps. This belt 1 is made of a non-magnetic rubber material, and has internal teeth 2 on the inner circumferential side.
are formed at equal pitches, and a set of three retaining grooves 3 is provided on the outer circumferential side.
are formed in the width direction at regular pitch intervals. In the holding groove 3, three plate-shaped lead terminals 6 of a radial lead type electronic component 5 used in the present invention are fitted and held in a horizontal state.

The timing belt 1 has five driving pulleys 1.
0 to 14, each of which is driven in the direction of the arrow at a separate feed pitch. Among these, drive pulleys 10, 12, and 13 are intermittently driven by one drive motor 15 via a shaft 16 and index beds 17 to 19, and pulleys 10 and 13 are intermittently driven by 2 pitches, and pulley 12 is intermittently driven by 1 pitch. be done. In addition, the pulley 11 is connected to the pulse motor 2.
0, the taping pulley 14 is driven intermittently by the shaft 1 by the drive motor 15.
6 and a belt 21. Therefore, the intake process A to measurement process C is fed by 2 pitches, the measurement process D is fed by 40 pitches, the marking process E is fed by 1 pitch, the NG extraction process F and the rank cut process G are fed by 2 pitches, and the taping process H is fed by 2 pitches. A plurality of processes with different feed pitches, such as continuous feed, coexist. However, the average transport speeds of the processes are equal to each other.

Large buffer means 22 for absorbing a feed pitch difference of 40 pitches is provided between parts where the feed pitches are significantly different, that is, between the measuring process C and the measuring process D, and between the measuring process D and the marking process E. , 23 are provided. Also, between the marking process E and the NG extraction process F, which are areas where the feed pitch difference is small, and the rank cutting process G.
A small buffer means 24, 25 is provided between the taping step H and the taping step H to absorb the feed pitch difference of two pitches.

[0016] Here, the specific structure of each part of the above-mentioned conveyance device will be explained. As shown in Figure 3, there are 3
Pulleys 30, 31, and 32 are provided, and the lower pulley 30 is supported by an arm 33 so as to be swingable in the front-rear direction, and is always urged forward (in the direction of the arrow) by a spring 34. As a result, belt 1 on the return side
gives a certain tension to. The belt 1 on the return side passes from the pulley 30 to the intermediate pulley 31 and then to the toothed guide pulley 3.
2 and enters the intake process A. A rail 35 having the structure shown in FIG. 4 is provided horizontally at this location. This rail 35 has a non-magnetic rail guide 37 fixed on a mounting base 36 and a non-magnetic head guide 38 fixed on its upper end surface.
Two yokes 39 and 40 are fixed with a permanent magnet 41 sandwiched between them. The upper ends of the yokes 39 and 40 protrude slightly above the permanent magnet 41, and the timing belt 1 is smoothly guided along the rail groove formed by the yokes 39 and 40 and the permanent magnet 41. The lead terminal 6 of the electronic component 5 held in the holding groove 3 of the timing belt 1 is close to the yokes 39 and 40 in a non-contact manner.
, a closed magnetic path is formed that reaches the permanent magnet 41 via the yoke 40, and the lead terminal 6 is strongly attracted and held in the direction of the holding groove 3. In other words, the yokes 39 and 40 are the timing belt 1
It serves as both a guide member and a magnetic path forming member. In addition,
Movement of the electronic component 5 to the left in FIG. 5 is prevented from shifting in the horizontal direction.

A driving pulley 10 shown in FIG. 5 is provided on the rear end side of the rail 35. As shown in FIG. This drive pulley 1
0 is equipped with a drive shaft 43 that is intermittently driven by the index head 17 at two pitches, and on this drive shaft 43, a non-magnetic head guide 44, a yoke 45, a permanent magnet 46, and a flange 47 that also serves as a yoke are stacked in order. Fixed. A non-magnetic sprocket 48 is fixed on the outer peripheral side of the permanent magnet 46 and between the yoke 45 and the flange 47, and this sprocket 48 meshes with the internal teeth 2 of the belt 1 to rotationally drive the belt 1. In this case as well, since a magnetic path is formed from the permanent magnet 46 through the yoke 45, the lead terminal 6, and the flange 47 and back to the permanent magnet 46, the electronic component 5 is stably held in the holding groove 3 of the belt 1. In addition,
A guide plate 49 fixed to a fixed part is provided above the drive pulley 10, and a circular arc surface 49 of this guide plate 49
The outer peripheral surface of the belt 1 is guided by a. Therefore, it is possible to prevent the electronic component 5 from falling off or shifting when the conveyance direction suddenly changes from a linear direction to an arcuate direction. Note that the other drive pulleys 11 to 13 have the same structure as the drive pulley 10 described above, so their explanations will be omitted.

The belt 1 passing through the driving pulley 10 is bent downward, moves downward along the rail 50 (see FIG. 3), and then bent upward by the guide pulley 51. The rail 50 has the same structure as the rail 35 shown in FIG. 4, and uses the attraction force of a permanent magnet to prevent the electronic component 5 being conveyed downward from falling off the belt 1. The guide pulley 51 is always urged downward by a spring (not shown), absorbs the inertia during the 40-pitch operation in the subsequent measuring process D, and prevents the belt 1 from overshooting. Note that 52 is a shock absorber that elastically receives the upward movement of the guide pulley 51.

The large-sized buffer means 22 is provided with a vertically erected support plate 54, and a movable plate 55 is attached to the front surface of the support plate 54 so as to be slidable in the vertical direction. One end of a chain 56 is connected to the upper end of the movable plate 55, and as shown in FIG.
It is connected to a weight 59 which is vertically movably attached to the back side of the support plate 54 via 58 . weight 5
The weight of 9 is the pulley 60, 61 and rail 70, 71 described later.
Since the weight of the movable plate 55 is set to be heavier than the entire weight of the movable plate 55 including the movable plate 55, the movable plate 55 is always urged upward. Movable plate 5
Pulleys 60 and 61 are rotatably attached to the upper and lower ends of the front surface of the movable plate 55, respectively, and a pair of rails 70 and 71 that extend in the vertical direction are fixed to both front and rear sides of the movable plate 55. The upper pulley 60 is rotatably attached to a shaft 62 fixed to the movable plate 55 via a bearing 63, as shown in FIG. This pulley 60 includes a non-magnetic head guide 64, a non-magnetic flange 65, yokes 66, 67 and a permanent magnet 68 sandwiched between the two.
The flange 65 and one yoke 66 form a groove for guiding the timing belt 1. The reason why the belt 1 wound around the pulley 60 is supported by the flange 65 is that the belt 1 is tightly wound around the pulley 60 due to the weight of the weight 59, so that the permanent magnet 68 is not damaged by the load. This is to do so. While the belt 1 moves around the outer circumference of the pulley 60, the permanent magnet 6
The lead terminal 6 of the electronic component 5 is attached to the belt 1 by the magnetic force of 8.
The electronic component 5 is stably held in the holding groove 3 of the electronic component 5, thereby preventing the electronic component 5 from falling off. Note that the lower pulley 61 presses the return side belt 1 downward, and this pulley 61 is not provided with a permanent magnet like the upper pulley 60.

Rails 70 provided on both sides of the movable plate 55,
71 is a spacer 72 with a bolt 73 as shown in FIG.
A non-magnetic rail guide 74 fixed to the movable plate 55 via a non-magnetic rail guide 74, a non-magnetic head guide 75, 76 fixed to this rail guide 74, and a yoke 7 sandwiched between the two.
7, 78 and 79, 80 and permanent magnets 81, 82. Therefore, while the timing belt 1 moves vertically within the rails 70, 71, the lead terminal 6 of the electronic component 5 is stably held in the holding groove 3 of the belt 1 by the magnetic force of the permanent magnets 81, 82. Note that the front rail 70 is formed slightly longer than the rear rail 71.

The timing belt 1, which has passed through the rear rail 71 of the buffer means 22, has its conveyance direction changed horizontally by the holding pulley 84, and is conveyed along the rail 85 to the measurement process D. This rail 85 also has a structure similar to that shown in FIG. After the measurement is completed, the marking process E is proceeded through the buffer means 23 as shown in FIG. The structure of this buffer means 23 is exactly the same as that of the buffer means 22 described above, so a description thereof will be omitted.

The timing belt 1 is fed two pitches in front of the front buffer means 22, and the buffer means 22, 23
The paper is transported by 40 pitches in between, and by 1 pitch after the buffer means 23 at the rear. Therefore, drive pulley 1
Immediately before the motor 1 performs a 40-pitch operation, the pulley 60 of the front buffer means 22 is at the uppermost position, and the rear buffer means 23 is at the lowermost position. When the drive pulley 11 starts operating, the front buffer means 22 goes up and the rear buffer means 23 goes down. At the end of the 40-pitch operation, the pulley 60 of the front buffer means 22
is at the lowest end position, and the rear buffer means 23 is at the highest end position. Thereafter, while the drive pulley 11 is at rest, the front buffer means 22 gradually rises while applying a constant tension to the timing belt 1 fed in two pitches at a time from the measurement process C, and the rear buffer means 23 is used for the marking process. The timing belt 1 is gradually lowered to E while being sent out one pitch at a time. In this way, the two buffer means 22 and 23 move in opposite directions to absorb the difference in feed pitch.

During the marking step E, the timing belt 1 is conveyed one pitch at a time along the rail 86 by the drive pulley 12. The drive pulley 12 has a structure similar to that in FIG. 5, and the rail 86 has a structure similar to that in FIG. After the marking is completed, a small buffer means 24 shown in FIG. 9 is provided during the transition to the NG extraction step F. This buffer means 24 includes a rotatable buffer pulley 88 located below the drive pulley 12, and a buffer pulley 88 located below the drive pulley 12.
8 and a guide pulley 89 located above the guide pulley 89. The buffer pulley 88 is movable in the vertical direction and is constantly urged downward by a spring 91. Therefore, the timing belt 1 that has reached the buffer pulley 88 via the drive pulley 12 can absorb the feed pitch difference while maintaining tension. On both the front and rear sides of the buffer pulley 88, there are a pair of front and rear rails 92, 9 equipped with permanent magnets as shown in FIG.
3 are provided facing each other, and while the timing belt 1 passes through the buffer means 24, the electronic component 1 is prevented from falling off.

After passing through the buffer means 24, FIG.
As shown in FIG. 0, the timing belt 1 is conveyed along a rail 95 having a structure similar to that shown in FIG. A small buffer means 25 similar to the buffer means 24 described above is provided at the end of the rail 95, and after passing through this buffer means 25, the taping process H is carried out by continuous feeding through a rail 96 having a structure similar to that shown in FIG. Move to. Here, the electronic component 5 is transferred from the timing belt 1 to the taping pulley 14, and is taped between it and another pulley (not shown). Then, the timing belt 1 after the electronic component 5 has been transferred
is returned to the starting end side through the lower side.

In the above embodiment, a permanent magnet was used as the magnet means, but an electromagnet may be used instead of the permanent magnet. In particular, it is easy to replace permanent magnets with electromagnets in the fixed rail portion.

FIG. 11 shows a second embodiment of the conveying means according to the present invention. In the above embodiment, the timing belt is made of a non-magnetic material, and magnets are used in the pulleys and rails that guide the belt.
A plurality of retaining grooves 101 are provided in the width direction on the outer periphery of the
At the same time, a bar-shaped permanent magnet 103 is embedded in the width direction inside the internal tooth 102 portion. In this case, since the permanent magnet 103 is embedded in the internal teeth 102, stress is hardly applied to the permanent magnet 103 when the belt 100 is bent, and there is no risk of the permanent magnet 103 breaking. If the magnet 103 is integrally attached to the belt 100 in this way, there is no need to attach a permanent magnet to the pulley or the rail, so the structure of the conveyance system and buffer means can be simplified.

FIG. 12 shows a third embodiment of the conveying means. In this embodiment, a chain 110 with an attachment is used, and a work holder 111 is attached to this chain 110.
is attached. The work holder 111 is made of a non-magnetic material, and has an upright piece 112 integrally formed on one side thereof, and a holding groove 113 into which the lead terminal 6 of the electronic component 5 can be inserted and held is formed in the upright piece 112. be. Further, a mounting surface 114 for placing the main body of the electronic component 5 is formed at the lower part of the work holder 111, and a permanent magnet 115 is embedded and fixed inside this mounting surface 114. In this case as well, since the lead terminals 6 of the electronic component 5 are attracted by the permanent magnet 115, the electronic component 5 can be stably held on the work holder 111 against changes in inertia and conveyance direction during intermittent driving.

Note that the work holder includes a holding groove 113 that fits and holds the lead terminal 6 as in the above embodiment.
The present invention is not limited to one in which a recess is provided to accommodate the entire electronic component, and a permanent magnet may be attached to the bottom side of the recess.

Electronic components that can be used in the present invention are not limited to radial lead components equipped with flat lead terminals;
A radial lead component with round lead terminals may be used, or a chip component without lead terminals may be used. For example, in the case of a chip component having magnetic caps constituting external terminals at both ends, a recess in the width direction may be provided in the outer circumference of the timing belt, and the chip component may be fitted into this recess. In this case, the magnetic flux of the permanent magnet acts on the magnetic cap to stably hold the chip component in the recess.

[0030]

[Effects of the Invention] As is clear from the above description, according to the present invention, since the magnetic material portion of the electronic component is attracted and held by the magnet, it is possible to prevent the electronic component from shifting or falling due to inertial force during intermittent feeding. This enables high-speed conveyance. Furthermore, unlike when electronic components are mechanically clamped, the structure is not complicated, the electronic components are not damaged, and there are no problems with repeated use. In addition, electronic components can be stably transported not only horizontally but also vertically or in an arcuate direction, making it possible to provide a vertical buffer in the middle of the transport system, allowing the electronic components to be transported through a series of processes. Processes with different pitches can be mixed. This makes it possible, for example, to process a large number of slow-processing tasks simultaneously, and it becomes possible to significantly increase the conveyance speed as a whole.

[Brief explanation of the drawing]

FIG. 1 is an overall schematic front view and plan view of a conveying device according to the present invention.

FIG. 2 is a perspective view of an example of a timing belt.

FIG. 3 is a front view of the starting end of the conveyance device in FIG. 1;

FIG. 4 is an enlarged sectional view taken along the line IV-IV in FIG. 3;

FIG. 5 is an enlarged sectional view taken along the line V-V in FIG. 3;

FIG. 6 is an enlarged right side view of the upper part of the buffer means.

FIG. 7 is an enlarged sectional view taken along the line VII-VII in FIG. 3;

FIG. 8 is an enlarged sectional view taken along line VIII-VIII in FIG. 3;

FIG. 9 is a front view of the intermediate portion of the conveyance device of FIG. 1;

FIG. 10 is a front view of the terminal end of the conveyance device of FIG. 1;

FIG. 11 is a perspective view of a timing belt according to a second embodiment of the present invention.

FIG. 12 is a perspective view of a work holder according to a third embodiment of the present invention.

[Explanation of symbols]

Claims (4)

[Claims] Claim 1: A device for transporting electronic components, some or all of which are made of magnetic material, one by one at regular pitch intervals, which is formed into an endless shape and which fits and holds some or all of the electronic components. In addition, a conveying means is provided with holding portions that do not restrain the electronic components at a constant pitch in a direction perpendicular to the conveying surface, a driving means for driving the conveying means at a predetermined feeding pitch, and the electronic components are placed in the holding portions. What is claimed is: 1. A conveyance device for electronic components, comprising: magnet means for attracting a magnetic portion of an electronic component in a direction in which the electronic component is held. 2. The conveying device according to claim 1,
The electronic component is a radial lead component with multiple magnetic lead terminals protruding in parallel from the main body, and the conveyance means has holding grooves on its outer circumferential surface that fit and hold the lead terminals in a horizontal state at a constant pitch in the width direction. The timing belt is a non-magnetic timing belt, and the magnet means is attached to a rail that slidably guides the timing belt, and is configured with a magnet that attracts the lead terminal in the direction of the holding groove. Conveyance device for electronic parts. 3. The conveying device according to claim 1,
The electronic component is a radial lead component with multiple magnetic lead terminals protruding in parallel from the main body, and the conveyance means has holding grooves on its outer circumferential surface that fit and hold the lead terminals in a horizontal state at a constant pitch in the width direction. This is a non-magnetic timing belt that is provided between a plurality of drive means that drive the timing belt in the horizontal direction at partially different feed pitches, and parts of the timing belt with different feed pitches, and is provided on the feed side of the timing belt. The buffer means is provided with a movable member that is movable in the vertical direction and a biasing means that constantly biases the movable member upward. and a pulley rotatably attached to the upper end of the movable member to support the inner circumference of the timing belt and to which a magnet is attached that attracts lead terminals of electronic components in the direction of the holding groove of the timing belt, and the movable member. The rails are provided vertically on both the front and rear sides of the timing belt, and are equipped with magnets that slidably guide the inner periphery of the timing belt and attract lead terminals of electronic components in the direction of the holding groove of the timing belt. An electronic component conveyance device characterized by: 4. The conveying device according to claim 1,
The electronic component is a radial lead component with multiple magnetic lead terminals protruding parallel from the main body, and the conveyance means consists of an endless chain and a work holder attached to this chain at a constant pitch. 1. A conveying device for electronic components, characterized in that a holding groove for fitting and holding a lead terminal of an electronic component, and a magnet for attracting the lead terminal in the direction of fitting into the holding groove are attached.