JPH04343298A - Electronic parts feeder - Google Patents

Abstract

PURPOSE:To enable an electronic parts feeder to feed various kinds of enveloping tapes where chip type electronic parts are enveloped at a different pitch. CONSTITUTION:A pitch switching member 22 is provided accessible to a feed pawl 15 in the swing direction of the pawl 15, and by one reciprocating motion of a swinging member 14, the feed pawl 15 is engaged with a new ratchet tooth 13 located second in the counterclockwise direction of a ratchet wheel 12 from a ratchet tooth 13 just disengaged from the pawl 15 to give the ratchet wheel 12 an intermittent rotation by two pitches of the ratchet teeth. When the pitch switching member 22 is made to approach to the feed pawl 15 by a pitch, by one reciprocating motion of a swinging member 14, the feed pawl 15 is made to bear against the pitch switching member 22 when the feed pawl 15 moves by one pitch, the pawl 16 of the feed pawl 15 is shifted in a direction so as to recede from the ratchet wheel 12 as not engaged with a ratchet tooth located after one pitch, and furthermore the pawl 16 of the feed pawl 15 is engaged with a ratchet tooth located at the first pitch when the feed pawl 15 is positioned apart from the pitch switching member 22 by one reciprocating motion of a swinging member 14.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component supply device that feeds a storage tape containing chip-type electronic components at predetermined intervals at the predetermined intervals.

More specifically, the present invention aims to provide a novel electronic component supply device capable of feeding a plurality of types of storage tapes having different storage pitches for chip-type electronic components stored on the storage tapes.

0003

[Background Art] With the recent development of surface mounting technology, automatic mounting of chip-type electronic components onto circuit boards has become widespread.
Among component supply devices for such automatic mounting apparatuses, those using a storage tape on which chip-type electronic components are held on the tape at predetermined intervals are becoming mainstream.

[0004] A supply device using this storage tape usually takes out chip-shaped electronic components from the storage tape fed at predetermined pitches by an appropriate feeding mechanism using a suction tool or the like, and then mounts them on a predetermined position on a circuit board. has become,
An example of such a device is shown in Japanese Patent Application Laid-Open No. 3-15360.

FIGS. 12 and 13 show the main parts of the electronic component supply apparatus a described above.

b is a sprocket rotatably supported on a base c, and some engaging teeth d, d of the sprocket b
, . . . are disposed so that their tooth tips protrude from the upper surface of the base c.

[0007] Furthermore, the engagement teeth d, d, .
... are formed at the same pitch as the formation pitch of the engagement holes of the storage tape, which will be described later.

The ratchet wheel e is one size smaller than the sprocket b, and the ratchet wheel e is bonded to the sprocket b so that it rotates coaxially and integrally with the sprocket b.

[0009] f is a swinging lever coaxially and swingably supported with the sprocket b and ratchet wheel e, and one end of the coil spring g is hooked at a position slightly closer to the support shaft than the swinging end. , the rotational force in the clockwise direction in FIG. 12 is applied.

Reference numeral h denotes a press pin that is supported by the base c so as to be slidable in the vertical direction.The lower end of the pressing pin is connected to a driving means (not shown), and as the driving means is driven, the pressing pin is slidable in the vertical direction intermittently. At the same time, the swinging end of the swinging lever f is pressed against the upper end of the swinging lever f.

i is a feed pawl rotatably supported on the swing lever f at an intermediate portion between its support shaft and its swing end;
The ratchet wheel e is attached to one end of the feed pawl i.
An engaging pawl k is formed which engages each ratchet tooth j, j, . A rotational force is applied in the clockwise direction in FIG. 12 to keep the engaging pawl k of the feed pawl i in constant contact with the ratchet teeth j of the ratchet wheel e.

Reference character m designates a reversal prevention pawl of the ratchet wheel e, one end of which is rotatably supported by the base c, the other end of which engages with the ratchet teeth j of the ratchet wheel e; A coil spring n is stretched between the intermediate part and the base c to apply a rotational force in the counterclockwise direction in FIG. It seems like it is.

o is a storage tape in which chip-type electronic components are stored at predetermined intervals, and on one side edge of the storage tape o, tapes are attached in the length direction at the same intervals as the arrangement spacing of the chip-type electronic components. Matching holes p, p, . . . are formed.

The storage tape o is supported on the base c so as to be movable in the longitudinal direction guided by a guide (not shown), and the sprocket b is inserted into the engagement holes p, p, . . . Engagement teeth d, d, protruding from the top surface of the base c
... are engaged separately.

When the pressing pin h is moved up and down by the drive means (not shown), the swinging lever f is swung up and down, and as the swinging lever f swings, the feed pawl i is moved against the ratchet wheel. It is swung in the circumferential direction on the outside of e.

Since the engaging pawl k of the feed pawl i is always in contact with the ratchet teeth j of the ratchet wheel e, when the feed pawl i moves upward, the ratchet wheel e rotates counterclockwise. Also, when the feed pawl i is moved downward, the engaging pawl k overcomes the ratchet tooth j that had been engaged up to that point and engages the ratchet tooth j located next to it in the clockwise direction. It will match.

At this time, the ratchet wheel e is prevented from rotating in the clockwise direction by the anti-reverse pawl m, and therefore, the ratchet wheel e is rotated by its ratchet teeth j, j, . It is intermittently rotated counterclockwise by the formation pitch of...

The intermittent rotation of the ratchet wheel e in the counterclockwise direction similarly causes the sprocket b to rotate intermittently in the counterclockwise direction.
The engagement teeth d, d, . . . of the storage tape o are engaged with the engagement holes p, p, . It is intermittently sent in one direction at the same pitch as the formation pitch.

[0019]

[Problems to be Solved by the Invention] However, in the electronic component supply device described above, the ratchet wheel e
With intermittent rotation, the feed pawl i can only feed the ratchet teeth j, j, ... of the ratchet wheel e one by one, and therefore, the sprocket b also has the formation pitch of the engagement teeth d, d, ... In the end, a storage tape o containing chip-type electronic components at the same pitch as the formation pitch of the engagement teeth d, d, ... of sprocket b.
There is a problem in that it can only be used for feeding, and is lacking in versatility.

That is, storage tapes containing electronic components are usually stored at a pitch of 4 mm, regardless of the type of electronic components, but in recent years, with the miniaturization of electronic components, the pitch has been reduced to 2 mm. 2mm storage tape can no longer be fed using conventional electronic component supply devices designed for storage pitches of 4mm.
As a result, multiple types of electronic component supply devices had to be prepared for each storage pitch.

[0021]

[Means for Solving the Problems] Therefore, in order to solve the above-mentioned problems, the electronic component feeding device of the present invention includes a pitch switching member disposed so as to be able to move toward and away from the feed claw in substantially the same direction as the swing direction of the feed claw. With one forward movement of the moving member, the feed pawl engages the nth (n is a positive integer, n≧2) ratchet tooth in the counter-rotation direction of the ratchet wheel from the previously engaged ratchet tooth. , the ratchet wheel is given intermittent rotation by n pitches of the ratchet tooth formation pitch in one return action, and the pitch switching member is connected to the feed pawl by x(
x is a positive integer, n>x≧1) When the pitch approaches, the feed pawl moves by (n-x) pitches with the forward movement of the swinging member, and then comes into contact with the pitch switching member and closes the feed pawl. The direction of the pawl is changed so that it is separated from the ratchet wheel, so that it does not engage with the ratchet teeth after the ((n-x)+1)th pitch, and furthermore, the pitch of the feed pawl is changed by the back-and-forth movement of the swinging member. The ratchet teeth are engaged with the (n-x)th pitch of ratchet teeth at a position separated from the member.

[0022]

[Operation] Therefore, according to the present invention, by appropriately adjusting the position of the pitch switching member, the ratchet teeth of the ratchet wheel that the feed pawl engages can be changed by one, one, two, etc. The ratchet wheel can be adjusted by 1 pitch, 2 pitches, or 2 pitches of the ratchet teeth.
It is possible to selectively feed the ratchet wheel by 3 pitches, etc., and the ratchet wheel is selectively and intermittently rotated at a pitch that is an integral multiple of the forming pitch of the ratchet teeth by one swinging motion of the swinging lever. Therefore, the intermittent feeding operation of the storage tape can be selectively performed at different pitches, and therefore, it is possible to supply multiple types of storage tapes with different storage pitches for chip-type electronic components. can.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Details of the electronic component supplying apparatus of the present invention will be explained below according to a first embodiment shown in the accompanying drawings.

In this embodiment, only the main parts of the electronic component supply apparatus 1 will be described.

2 is an anteroposterior direction (the direction diagonally downward to the left in FIG. 1 is the front side, the direction diagonally upward to the right is the rear side, and the direction diagonally downward to the right in the figure is the right side, and the direction diagonally downward to the left in FIG. The direction facing upwards is the left side. In the following explanation, directions are referred to in this direction.)
The base is made of a slightly thick sheet metal material with a long length, and the base 2 is
At the front end, the upper edge is a sloped edge that is displaced downward toward the front end.

On the upper edge of the base 2, a tape mounting plate 3 is installed toward the right at a portion slightly rearward of the above-mentioned sloped edge.
A tape guide plate 4 is protruded from the front end of the inclined edge of the base 2 toward the right, similar to the tape mounting plate 3.
is installed protrudingly.

The tape placement plate 3 and the tape guide plate 4 have approximately the same width in the left and right directions, and are formed to have approximately the same width as the width of the portion of the storage tape in which the engagement hole is formed, which will be described later. Furthermore, between the front end of the tape placement plate 3 and the rear end of the tape guide plate 4 is a notch 5 which is substantially rectangular when viewed from above and is long in the front-rear direction.

Reference numeral 6 denotes an auxiliary base that has approximately the same shape as the base 2 when viewed from the left and right sides, and a portion of the upper edge of the auxiliary base 6 that is closer to the rear than the front end is located to the right. A connecting piece 7 is provided protrudingly in the opposite direction, and the right side edge of the connecting piece 7 is connected to the upper edge of the base 2.

Reference numeral 8 denotes a tape guide plate which is protruded to the right at a portion of the auxiliary base 6 on the front side of the portion from which the connecting piece 7 is protruded, and its width is equal to the horizontal width of the connecting piece 7. Therefore, a notch 9 is formed between the right edge of the tape guide plate 8 and the upper edge of the base 2, through which the chip-type electronic components held by the storage tape can escape. be done.

Reference numeral 10 denotes a sprocket rotatably supported by the base 2, and the tooth tips of some of the engaging teeth 11, 11, . . . It is positioned so as to protrude forward and upward from a portion of the notch 5 of the stand 2 that corresponds to the inclined edge.

[0031] Engaging teeth 11, 11, . of sprocket 10
For example, there are 30 teeth, the pitch of which is 4 mm, and the thickness of the engaging teeth 11, 11, . . . is the same as the left and right width of the engaging hole formed in the storage tape. Or it is formed slightly small.

Reference numeral 12 denotes a ratchet wheel that is one size smaller than the sprocket 10. The ratchet wheel 12 is attached to the sprocket 10 so as to be coaxial with the sprocket 10 and overlapped on the right side of the sprocket 10. , 12 are adapted to be rotated integrally.

Ratchet tooth 1 of ratchet wheel 12
3, 13, . . . are sliding surfaces 13a, 13a, . . . whose counterclockwise tooth surfaces are inclined with respect to the radial direction, and whose clockwise tooth surfaces are radially inclined. The pressed surfaces 13b, 13b, . . . coincide with the pressed surfaces 13b, 13b, .

Therefore, the rotation direction of the ratchet wheel 12 is counterclockwise in FIG. 2.

Further, the ratchet teeth 13, 13, .
... is such that one engagement tooth 11 corresponds to two ratchet teeth 13, 13.

Reference numeral 14 denotes a swinging member that is swingably supported by the base 2 while being located coaxially with the sprocket 10 and the ratchet wheel 12. It is in a rotatable relationship with the ratchet wheel 12.

The swinging member 14 is made of a sheet metal material having a substantially inverted trapezoidal shape when viewed from the left and right, and its swinging fulcrum is located closer to one obtuse corner than the center. One sharp corner facing the corner is the sprocket 10
located outside and behind the outer periphery of the

Reference numeral 15 denotes a feed pawl that is rotatably supported on the left side of the portion of the swinging member 14 located on the rear side of the ratchet wheel 12 when viewed from the right, and the feed pawl 15 is tilted upward toward the front. A half-moon-shaped protrusion 15a is protruded from the front edge of the protrusion 15a, which is long in the direction shown in FIG. Ratchet teeth 13, 1 of ratchet wheel 12
3, . . . are formed with claw portions 16 that engage with them.

Further, the feed pawl 15 is biased with rotational force in the counterclockwise direction in FIG. It is designed to be in contact with each other.

Reference numeral 17 denotes a pressing lever made of a sheet metal material that is elongated in the vertical direction, and whose lower end is rotatably supported at a position rearward of the part of the base 2 where the sprocket 10, ratchet wheel 12, etc. are supported. The rotation end thereof is rotated in the front and back direction within a certain range by a drive means (not shown).

Reference numeral 18 denotes a connecting link that connects the pressing lever 17 and the swinging member 14, and the connecting link 18
is rotatably connected to an obtuse corner with its rear end located slightly above the pivot point of the pressing lever 17 and its front end located below the pivot point of the swing member 14. ing.

[0042] Thus, when the pressing lever 17 rotates in the front-rear direction, the swinging member 14 is caused to swing within a certain range in the clockwise and counterclockwise directions via the connecting link 18.

The above-mentioned swinging of the swinging member 14 causes the feed pawl 15 to move within a certain range in the circumferential direction outside and behind the ratchet wheel 12.

Further, as will be described later, the movement of the feed pawl 15 in the circumferential direction is performed by a distance of two ratchet teeth 13, 13, . . . of the ratchet wheel 12, that is, a distance of two pitches. .

[0045] When the feed pawl 15 is moved clockwise from the position where the feed pawl 15 has moved most counterclockwise (hereinafter referred to as the "initial position"), the pawl portion 16 The ratchet tooth 13 that has crossed over the sliding surface 13a of the ratchet tooth 13 that is adjacent to the ratchet tooth 13 in the clockwise direction that has been engaged up to that point, and has climbed over the tip of the ratchet tooth 13, and then by sliding over the sliding surface 13a of the ratchet tooth 13 adjacent to the clockwise side of the
It passes over the tip of the ratchet tooth 13 and is engaged with the pressed surface 13b thereof. This position of the feed pawl 15 is referred to as the engagement start position.

That is, the feed pawl 15 has ratchet teeth 13, 1
3, . . . are moved two pitches in the clockwise direction.

Next, when the feed claw 15 is moved counterclockwise from the engagement start position, the claw portion 16 moves the pressed surface 13b of the ratchet tooth 13 of the ratchet wheel 12 that is engaged counterclockwise. While pressing the ratchet wheel 12 in the rotational direction and reaching the initial position, the ratchet teeth 13,
13, . . . , in other words, it is rotated counterclockwise by two pitches.

In this way, when the pressing lever 17 is rotated, the swinging member 14 is swung, and the feed pawl 15 is reciprocated once, the ratchet wheel 12 is rotated counterclockwise by two pitches. The Rukoto. Therefore, the pressing lever 1
As 7 continues to rotate, ratchet wheel 1
2 is rotated intermittently by two pitches.

Furthermore, when the ratchet wheel 12 rotates intermittently by two pitches of its ratchet teeth 13, 13, . . . , the sprocket 10 rotates integrally with the ratchet wheel 12.
The engaging teeth 11, 11, . . . perform intermittent rotation by one pitch.

Reference numeral 19 denotes a reversal prevention pawl for preventing the ratchet wheel 12 from reversing, and the ratchet wheel 1
It is rotatably supported with respect to the base 2 at a position slightly diagonally above the rear of the base 2.

The anti-reversal pawl 19 is long in the front-rear direction, and a portion slightly rearward from its center serves as a rotational fulcrum, and the ratchet tooth 1 of the ratchet wheel 12 is attached to the front end of the pawl 19.
3, 13, . . . are formed with claw portions 20 that engage with them.

Reference numeral 21 denotes a coil spring that is compressed between the lower surface of the rear end of the reverse prevention claw 19 and the spring receiving piece 2a formed on the base 2, and thereby allows the reverse rotation prevention claw 19 to rotate counterclockwise. Rotational force in the direction is applied.

The claw portion 20 of the reversal prevention claw 19 is engaged with the ratchet teeth 13 located diagonally above the rear of the ratchet wheel 12 to prevent the ratchet wheel 12 from rotating clockwise.

Reference numeral 22 denotes a pitch switching member in the shape of a band having an arc of approximately 180 degrees, the inner arc of which is larger than the outer circumferential arc of the sprocket 10, and the pitch switching member 22 is located below the sprocket 10 concentrically with the outer arc of the sprocket 10. It is located in

A notch 23 that opens upward and backward is formed on the outer circumferential side of the rear end of the pitch switching member 22, and by forming the notch 23, a narrow circle is formed on the inner circumferential side of the rear end. A regulating piece 24 having an arc shape is formed.

Reference numerals 25 and 25 indicate elongated positioning holes extending in the circumferential direction at positions near the front end and near the rear end of the pitch switching member 22, respectively. , 25 are concentric with the pitch switching member 22 and have a width approximately one-third of the width thereof, and the length in the circumferential direction is slightly larger than the pitch of the ratchet teeth 13 of the ratchet wheel 12. long formed.

Reference numerals 26 and 26 denote elongated holes extending in the circumferential direction at positions in front of the positioning hole 25 on the front end side of the pitch switching member 22 and approximately in the middle between the two positioning holes 25 and 25. It is a fixing hole having a shape, and the fixing hole 2 is
6 and 26 are concentric with the pitch switching member 22 and have a width approximately half that of the pitch switching member 22, and have a circumferential length slightly longer than the length of the positioning holes 25 and 25. There is.

Reference numerals 27 and 27 are positioning pins which are provided on the outside of the sprocket 10 placement part of the base 2 and protrude toward the right at positions diagonally downwardly rearward and diagonally downwardly forward from the center thereof, respectively. These positioning pins 27, 27 are formed on the same circumference around the center of the sprocket 10, and at the same interval as the formation interval of the positioning holes 25, 25 of the pitch switching member 22.

Further, the tip ends of the positioning pins 27, 27 have an outer diameter that is approximately the same as the width of the positioning holes 25, 25, or slightly narrower.

Reference numerals 28 and 28 are fixing screws for attaching the pitch switching member 22 to the base 2, and the fixing screws 2
8 and 28 are inserted into the fixing holes 26 and 26 of the pitch switching member 22 from the right side and are screwed into screw holes (not shown) formed in the base 2. The screw holes into which the fixing screws 28, 28 are screwed are formed at positions where the spacing between the positioning pins 27, 27 is the same as the spacing between the fixing holes 26, 26 and the positioning holes 25, 25. The pitch switching member 22 is fixed to the base 2 by tightening these fixing screws 28, 28.

Although not shown in the drawings, the base portions of the positioning pins 27, 27 are formed to have a larger diameter than their tip portions, and the positioning pins 27, 27 are inserted into the positioning holes 25, 25 of the pitch switching member 22. When inserted, the pitch switching member 22 comes into contact with the stepped surface between the tips and bases of the positioning pins 27, 27 from the right, thereby causing the pitch switching member 22 and the feed pawl 15 to contact each other from the right side. The positions in the left and right direction are approximately the same.

[0062] Thus, with the fixing screws 28, 28 of the pitch switching member 22 slightly loosened, the pitch switching member 22 is movable in the circumferential direction, and the pitch switching member 22 is connected to the positioning holes 25, 25 and the fixing hole. The positions where the respective counterclockwise side ends of 26 and 26 are in contact with the positioning pins 27 and 27 or the fixing screws 28 and 28 (hereinafter referred to as the "first position") and the respective holes 25, 25 and 26 , 26 and the positioning pins 27, 27 or fixing screws 2
8 and 28 (hereinafter referred to as the "second position").

As will be described later, when the pitch switching member 22 is in the first position, the feeding claw 15 does not cause the claw portion 16 to be separated from the ratchet wheel 12, and the pitch switching member 22 is in the second position, the feed claw 15 is in the second position, the pitch switching member 2
The direction is changed by the second regulating piece 24, and the claw portion 16 is separated from the ratchet wheel 12.

The function of the pitch switching member 22 will be explained below in relation to the feed pawl 15.

First, when the pitch switching member 22 is fixed at the first position, the feed pawl 15 does not come into contact with the pitch switching member 22 during its reciprocating movement as described above, so that the feed pawl 15 15, the ratchet wheel 12 is moved to the ratchet teeth 13, 13, . . . by one reciprocating movement.
2 pitches will be sent.

[0066] As a result, the sprocket 10 is rotated counterclockwise by one pitch of the engaging teeth 11, 11, . It turns out.

This state, that is, the state in which the pitch switching member 22 is fixed at the first position, is used when supplying a storage tape containing chip-type electronic components, which will be described later, in which the electronic component storage pitch is 4 mm. used for.

Next, with the pitch switching member 22 fixed at the second position, when the feed claw 15 is moved clockwise, the regulation piece 24 of the pitch switching member 22 touches the feed claw during the movement. 15 comes into contact with the claw portion 16
is spaced apart from the ratchet wheel 9.

That is, when the feed pawl 15 at the initial position is moved clockwise while the pitch switching member 22 is at the second position, the pawl portion 16 is moved from the ratchet tooth that had been engaged until then. The sliding surface 13a of the ratchet tooth 13 adjacent to the clockwise direction side of 13 is crossed, the ratchet tooth 13 is climbed over, and then the ratchet tooth 13 adjacent to the clockwise direction side, that is, the second pitch ratchet tooth 1
3, slide over the sliding surface 13a of
The lower surface of the part of the feed pawl 15 that is slightly closer to the pawl portion 16 than the protrusion 15a immediately before reaching the tooth tip of the pitch switching member 2
It abuts on the tip of the regulating piece 24 of No. 2.

Then, as the feed pawl 15 moves further in the clockwise direction, the feed pawl 15 is rotated clockwise by the regulating piece 24, and as a result, the feed pawl 15 is rotated clockwise by its pawl portion 16. is separated from the ratchet wheel 12, so that even if the feed pawl 15 moves further clockwise, the pawl portion 16 does not come into contact with the ratchet wheel 12. This position of the feed claw 15 is called a separated position (see FIG. 7).

Next, when the feed pawl 15 starts to move counterclockwise, when the feed pawl 15 attempts to separate from the regulating piece 24 of the pitch switching member 22, its direction is
The feed pawl 15 is rotated counterclockwise by the toggle spring (not shown) and engaged with the ratchet teeth 13 of the ratchet wheel 12, so that the feed pawl 15 has come to the engagement starting position (see FIG. 8).

At this time, the ratchet teeth 13 with which the claw portion 16 of the feed claw 15 engages are the ratchet teeth 13, 13 described above.
, . . . is the ratchet tooth 13 that is adjacent to the ratchet tooth 13 in the clockwise direction that was engaged before the feed pawl 15 started moving in the clockwise direction.

Then, as the feed pawl 15 moves further in the counterclockwise direction, the pawl portion 16 of the feed pawl 15 presses the pressed surface 13b of the engaged ratchet tooth 13 in the counterclockwise direction. So, ratchet wheel 12
When the feed pawl 15 returns to the initial position (see FIG. 9), the ratchet wheel 12 has been rotated by one pitch of the ratchet teeth 13, 13, . . .

Therefore, by reciprocating the feed pawl 15 in the circumferential direction with the pitch switching member 22 fixed at the second position, the ratchet wheel 12 can be intermittently rotated counterclockwise by one pitch. Become.

Also, at this time, the sprocket 10 is given a rotation of one pitch of the ratchet wheel 12, that is, a half pitch of the engaging teeth 11, 11, . . . of the sprocket 10, and therefore the sprocket Pitch feed of approximately 2 mm is performed in the outer circumferential circle of 10.

In this state, that is, the state in which the pitch switching member 22 is fixed at the second position, the storage pitch of electronic components is 2 among the storage tapes storing chip-type electronic components, which will be described later.
Used when supplying mm pieces.

29 is a chip type electronic component 30, 30, . . .
This is a storage tape that stores .

This 4 mm pitch storage tape 29 has engagement holes 31, 31 in the length direction at positions near one edge in the width direction.
,... are formed, and the engagement holes 31, 31,...
* are formed at a pitch of 4 mm, which is the same as the arrangement pitch of the chip type electronic components 30, 30, . . . .

32 is the chip type electronic component 30, 30,
Chip-type electronic components smaller than... 33, 33,...
This is a storage tape that stores .

This 2 mm pitch storage tape 32 has engagement holes 34, 34 in the length direction at positions near one edge in the width direction.
, . . . are formed, and the engagement holes 34, 34 are arranged at a pitch of 2 mm, similar to the arrangement pitch of the chip type electronic components 33, 33, .

[0081] When the 4 mm pitch storage tape 29 is to be supplied by the electronic component supply device 1, first, the pitch switching member 22 of the electronic component supply device 1 is fixed at the first position.

Next, the reel of the 4 mm pitch storage tape 29 is attached to the reel attachment part (not shown) of the electronic component supply device 1, and the chip type electronic components 30, 30, . . . of the 4 mm pitch storage tape 29 are stored. The part is located in the notch 9 of the auxiliary base 6, and the engagement holes 31, 31, .
... is formed on the tape mounting plate 3 and tape guide plate 4.

At this time, the engaging holes 31, 31, . . . of the 4 mm pitch storage tape 29 are brought into engagement with the engaging teeth 11, 11, .

The engagement holes 31, 31, . . . and the engagement teeth 1
1, 11, . . . are both formed at a pitch of 4 mm, so that the engagement holes 31 and
The engaging teeth 11, 11, . . . are respectively engaged with all of the teeth 31, .

When the driving means (not shown) is driven to swing or rotate the pressing lever 17, the connecting link 18, the swinging member 14, and the feed pawl 15 within a certain range, the sprocket 10 moves as described above. The engaging tooth 11,
11, . . . is carried out one pitch at a time. Therefore, the 4 mm storage tape 29 is fed in 4 mm pitches.

Next, when the 2 mm pitch storage tape 32 is to be supplied by the electronic component supply device 1,
First, the pitch switching member 22 of the electronic component supply device 1 is
Fix it in position.

Then, the reel of the 2 mm pitch storage tape 32 is attached to the reel attachment part (not shown) of the electronic component supply device 1, and the portion of the 2 mm pitch storage tape 32 where the chip type electronic components 33, 33, . . . is located in the notch 9 of the auxiliary base 6, and the engagement holes 34, 34,
... is formed on the tape mounting plate 3 and tape guide plate 4.

At this time, the engaging holes 34, 34, . . . of the 2 mm pitch storage tape 32 are brought into engagement with the engaging teeth 11, 11, .

The engagement holes 34, 34, . . . and the engagement teeth 1
1, 11, . . . are engaged with the engagement holes 34, 34, .
are formed at a pitch of 2 mm, and the engaging teeth 11, 11, . . . are formed at a pitch of 4 mm. This will be done between the teeth 11.

When the driving means (not shown) is driven to swing or rotate the pressing lever 17, the connecting link 18, the swinging member 14, and the feed pawl 15 within a certain range, the ratchet wheel will move as described above. 12 by one pitch of its sprocket teeth 13, 13, . . . , that is, the sprocket 10 is pitch-fed by a half pitch of its engagement teeth 11, 11, .
The pitch storage tape 32 is fed in pitches at a pitch of 2 mm.

[0091]

Effects of the Invention As is clear from the above description, the electronic component supplying device of the present invention is an electronic component supplying device that feeds a storage tape on which electronic components are stored at predetermined intervals at the predetermined intervals. , a sprocket in which engaging teeth are formed at a pitch corresponding to the engaging holes formed at a predetermined pitch in the storage tape, and a sprocket coaxial with the sprocket;
a ratchet wheel that rotates integrally with the ratchet; a swinging member that swings within a certain range; A feed pawl that engages with the ratchet teeth of the wheel and intermittently sends the ratchet wheel as the swinging member swings, and a feed pawl that can move toward and away from the feed claw in substantially the same direction as the swinging direction of the swinging member. and a pitch switching member disposed therein, in which the feed pawl moves from the previously engaged ratchet tooth to the counter-rotation direction of the ratchet wheel n (n is a positive integer, n≧2) by engaging with the ratchet tooth and giving intermittent rotation to the ratchet wheel by n pitches of the formation pitch of the ratchet teeth in one go back motion, and also by feeding the pitch switching member. When the feed pawl approaches the pawl by x (x is a positive integer, n>x≧1) pitch, the swinging member moves back and forth until the feed pawl has moved by (n-x) pitches and then hits the pitch switching member. The claw part of the feed claw contacts the ratchet wheel, changes direction so that it is separated from the ratchet wheel, does not engage with the ratchet teeth after the ((n-x)+1)th pitch, and furthermore, the feed claw is rotated by one-time movement of the swinging member. It is characterized in that the pawl engages the (n-x)th pitch ratchet tooth when it is separated from the pitch switching member.

Therefore, according to the present invention, by appropriately adjusting the position of the pitch switching member, the ratchet teeth of the ratchet wheel that the feed pawl engages are skipped one by one, and two
The ratchet wheel can be selectively moved by 1 pitch, 2 pitches, 3 pitches, etc. of the ratchet teeth, and the swinging The ratchet wheel can be selectively and intermittently rotated at a pitch that is an integral multiple of the pitch at which the ratchet teeth are formed by one swinging action of the lever. Therefore, it is possible to supply a plurality of types of storage tapes with different storage pitches for chip-type electronic components.

[0093] In the above embodiment, an electronic component supplying apparatus was described in which two types of storage tapes, a 4mm pitch storage tape and a 2mm pitch storage tape, were used. Not limited to 3
It is also possible to use more than one type of storage tape.

Further, the specific shapes, numerical values, etc. shown in the above embodiments are merely examples of implementing the electronic component supply apparatus of the present invention, and these do not exceed the technical scope of the present invention. shall not be construed in a limited manner.

[Brief explanation of drawings]

FIG. 1 shows an example of implementation of an electronic component supply apparatus of the present invention, and is a perspective view of essential parts.

FIG. 2 is a right side view.

FIG. 3 is a partially cutaway front view.

4 and 5 show the case where a 4 mm pitch storage tape is used, and FIG. 4 is an enlarged side view showing the main part with the feed claw in the initial position.

FIG. 5 is a side view showing an enlarged main part of the feed pawl at the engagement start position.

6 to 9 show the case where a 2 mm pitch storage tape is used, and FIG. 6 is an enlarged side view showing the main part with the feed claw in the initial position.

FIG. 7 is a side view showing an enlarged main part of the feed claw in a state where it is in a separated position.

FIG. 8 is a side view showing an enlarged main part of the feed pawl at the engagement start position.

FIG. 9 is a side view showing an enlarged main part of the feed claw in a state where it has returned to its initial position.

FIG. 10 is a perspective view showing a 4 mm pitch storage tape.

FIG. 11 is a perspective view showing a 2 mm pitch storage tape.

12 and 13 show an example of a conventional electronic component supply device, and FIG. 12 is a right side view of the main part.

FIG. 13 is a right side view showing an enlarged main part.

[Explanation of symbols]

1 Electronic component supply device 10 Sprocket 11 Engagement teeth 12 Ratchet wheel 13 Ratchet teeth 14 Swinging member 15　Feeding claw 16 Claw part 22 Pitch switching member 29 Storage tape 30 Electronic parts 31 Engagement hole 32 Storage tape 33 Electronic parts 34 Engagement hole

Claims (1)

[Claims] 1. An electronic component supply device that feeds a storage tape on which electronic components are stored at predetermined intervals at the predetermined intervals, the pitches corresponding to engagement holes formed in the storage tape at a predetermined pitch. a sprocket in which engaging teeth are formed;
a ratchet wheel that is coaxial with and rotates integrally with the sprocket; a swinging member that swings within a certain range; and a ratchet wheel that is rotatably supported by the swinging member and always moves in one direction. A feed pawl to which rotational force is applied and engages with the ratchet teeth of the ratchet wheel to intermittently send the ratchet wheel as the swinging member swings; a pitch switching member disposed so as to be able to move toward and away from the feed pawl, and the feed pawl moves from the previously engaged ratchet tooth to the counterrotation direction of the ratchet wheel by one reciprocating movement of the swinging member. It engages with the nth ratchet tooth (n is a positive integer, n≧2) and gives intermittent rotation to the ratchet wheel by n pitches of the formation pitch of the ratchet teeth in one go back motion. ,
Also, when the pitch switching member is moved closer to the feed pawl by x (x is a positive integer, n>x≧1) pitch, the feed pawl will move by (n-x) pitches with one reciprocal movement of the swinging member. At this point, change the direction so that the claw part of the feed claw comes into contact with the pitch switching member and moves away from the ratchet wheel ((n-x)+
1) It does not engage with the ratchet teeth after the pitch, and
An electronic component feeding device characterized in that the feed pawl engages the (n-x)th pitch ratchet teeth when the feed pawl is separated from the pitch switching member by the return movement of the swinging member.