JPS6184899A - Dispenser for electric part - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention provides an axial lead for obtaining a taped chain of components from a source and for separating said component leads from the tape. Concerning a two-way dispenser for line electrical components.

BACKGROUND OF THE INVENTION In techniques for automatically inserting axial lead wire electrical components into printed circuit boards, the components are fed into a machine as pre-taped strings and inserted into the circuit board.

To obtain a chain of pre-taped parts 2
, the parts are selected from the separate sources in the order in which they are to be sent to the retaping station, passed through a dispenser and onto a conveyor. The components are then retaped into a predetermined series for insertion into the printed circuit board in the desired order.

This type of method for sequential dispensing, transporting, and retaping of parts is described in U.S. Pat.
1.193, 4,119.206 and 4,3
20, 339. In these sequential actuators, multiple parts sources, such as taped rolls of individual parts, are arranged to pass the parts through dispensers that are responsive to a programmed machine controller. The parts are individually actuated to place the parts on the conveyor in a predetermined order for retaping at a downstream station. Such sequential actuators are shown in U.S. Pat. No. 3,730,041, U.S. Pat.

In a dispenser used in a sequential actuator, a pair of guides receives a taped chain of parts from a reel and passes the taped chain over a kite wheel, which guide wheel is connected to the part lead. The wire is passed through a cutter which cuts the lead wire and removes the part from the tape. The feeder wheels are rotated in a desired predetermined sequence in response to the machine controller.

(Problems to be Solved by the Invention, Means and Effects for Solving the Problems) The present invention provides for feeding a series of taped electrical components from a supply source and guiding the taped components to a cutting machine. It is an object of the present invention to provide a two-way dispenser in which the cutter is adapted to cut the component lead wire and remove the component from the taped chain. The various components of the dispenser are adjustable to accommodate different sized parts and different lengths of part leads. Bending of the component leads during cutting of the component from the tape is eliminated by applying constant and uniform driving and pulling forces to the leads while passing them through a uniquely configured cutter. .

Another object of the present invention is to provide an electrical parts dispenser having a support supporting a pair of guides for receiving taped chains of spaced apart parts from a supply source.

The guides of the dispenser are mounted on opposite threaded portions of a shaft rotatably mounted on the support. The shaft, when rotated, moves the guides toward or away from each other and adjusts the spacing of the guides to accommodate taped parts of various lengths. The parts pass from the guide through a spacing chute onto a rotating feeder wheel that pulls the part leads past a stationary cutter that cuts the part leads and tapes each individual part. Separate from. The separated parts pass onto the lower part of the chute and go to the position where they are to be conveyed out of the dispenser. The feeder wheel is mounted on an axle that is rotated in response to a machine controller. index wheel
ngwheel) is attached to the shaft to limit rotation of the shaft. The chute is adjustably mounted to the support and the feeder wheel is adjustably mounted to the shaft to accommodate parts of various lengths. The axis of the feeder wheel is rotated through a one-way coupling by an lenoid drive responsive to a machine controller. The shaft of the feeder wheel is disengageable from the coupling to allow rotation of the shaft in the opposite direction, allowing the taped chain of parts to be removed from the dispenser.

(Example) The dispenser of the present invention takes out a series of parts on which parts are taped together from a delivery reel, places the parts on the conveyor of a sequential actuator, and tapes them again to form a series of reels of parts. It is supposed to be done.

An example of this use of a dispenser is shown in commonly assigned US Pat. No. 4,119,206.

However, it should be appreciated that this dispenser can be used in other cases where it is desired to remove an electrical component C from a taped chain T of the electrical component during the electrical component handling process.

Dispenser 10 includes a rear support plate 12 having side plates 14 and 16 forming a U-shaped frame for dispenser 10. The shaft 18 is the upper end 20 of the side plate 14
The shaft 18 is mounted in a bearing 21 in the side plate 1.
through a hole 23 in the upper end 22 of 6. Shaft 18 has a knurled end 24 that is grasped by an operator to manually rotate shaft 18. The shaft 18 has a threaded portion 26 on the right and an oppositely threaded portion 28 on the left. Part guides 30 and 32 engage threaded portions 26 and 28, respectively, such that rotation of shaft 18 moves guides 30, 32 toward or away from each other to accommodate the various lengths to be handled by the dispenser. Part C
The guide spacing can be adjusted. The guides 30.32 each have a respective flared open end 34.34' that communicates with a slot 36.36' such that the lead wire of the taped component is inserted into said slot 36.36'.
be accepted through. When feeding different sources of reeled parts of different lengths to the part guides of the dispenser, the shaft 18 is manually rotated to move the guides toward or away from each other so that the taped part leads can be fed into the guides 30. .32 slot 36.36' can be passed through.

The lower rear parts 37.37' of the guides 30.32 each have a ■-shaped groove 38.38', said grooves 38.38'
The guide 3 rides on the shoulder 40 of the support plate 12 during adjustment.
0.32 of rotation and keep the guides 30, 32 aligned with the axis 18.

A pair of guide chutes 42, 44 are attached to the support plate 12, each of which has a component lead, a
vi! Each has a guide track 46,48 disposed on the lower inner side of the slot 36,36' to receive the L. The chutes 42,44 each have a respective rear flange 50,52 secured to a slot 58,6° in the support plate 12 with bolts 54,56. This allows the guide chutes 42, 44 to be adjusted closer or further apart to accommodate parts of different lengths. A drive shaft 62 is mounted within bushings 64, 66 supported by lower portions 68 of side plates I4 and I6. The drive shaft 62 passes through the respective lower portions 70, 72 of the chutes 42,44. An upper support shaft 74 is mounted between the side plates 14.16 and passes through the upper portion 76 of the guide chute 42.44. A support block 78.80 on chute 42.44 is adjustably secured to shaft 74 by a set screw (not shown).

A pair of feeder wheels 86.88 are connected to the chute 42.
44 and attached to an axle 62 on the outside of each wheel 86 .
88 is keyed at reference numeral 90 in a keyway 92 of shaft 62 for rotation with drive shaft 62 .

The feeder wheels each have a plurality of teeth 94 for engaging the component lead wire and drawing the taped component through the dispenser.

Each wheel has twelve pawl teeth 96 that can engage an optimal number of component leads while pulling the component through the dispenser. This distributes the tensile load to multiple component leads, thereby avoiding loading a single lead in locations where the lead may be significantly bent or distorted during the removal of the component from the tape T. prevent. - A pair of L-shaped stationary knives 98.100 are attached to the feeder wheel 8
It is attached to the outside of 6.88.

Knives 98.100 each have legs 102.104 secured to slots 110S 112 in support plate 12 with bolts 106.108.

This allows the knife 98.100 to be laterally adjusted to accommodate parts of different lengths. Each leg 114.116 of knife 98.100
are each located on the outer surface 12 of the feeder wheel 86,88.
It has a surface portion 118 that comes into contact with 0. Each knife 98.
100 beveled cutting edge 122 of feeder wheel 86.8
8 and interacts with the leading edge 124 of the tooth 94 so that the parts are fed by the feeder wheels 86, 88 to the knife 9.
8. Place the leads on the part as it is rotated through 100 mm. Knife 98.1o.

may also be attached to support plate 12 by screws 126.

The beveled end 128 of the shaft 62 is received within a one-way clutch 130 within a camp ring 132.

Coupling 132 is attached to coupling 134 on solenoid drive shaft 136 by a slide pin connector 137. Solenoid 138 is energized in response to the machine controller and drives shaft 62 through couplings 132,134.

132.134 The sliding pin interconnects 137 between each other compensate for any slight axial movement of the solenoid shaft 136 during rotation of the solenoid 138. The spring 140 is
It is located between the bushing 64 and a collar 142 that is secured to the shaft 62 with a set screw 144. Spring 140 biases shaft 62 into engagement with camp ring 132 via one-way clutch 130.

In the dispenser described above, the solenoid 138
When energized, the drive shaft 62 is driven to rotate the feeder wheels 86,88, thereby drawing the taped parts past the cutting edge 122,124 of the knife 98,100 and pulling the parts through the part line. It will be appreciated that the parts can be removed from the tape by cutting the edges. When feeding taped parts into the dispenser for the first time, use this tape to
It is fed through the slot 36.36' of the guide 30.32 and through the guide track 46.48 to engage the lead wire of the first taped part with the teeth 94 of the feeder wheel. Then, rotate the feeder wheel 86.88,
Pull out the taped part through the dispenser.

In this type of dispenser, it is desirable to be able to rotate the drive shaft in the opposite direction to reverse the taping component out of the dispenser.

For example, if the operator desires to change the delivery reel to a different size or type of part, it is desirable to be able to reversely rotate the shaft 62 to reverse the taped part out of the dispenser.

This eliminates the need to cut the tape at certain points on the dispenser and discard the removed taped parts from the series. Also, in some cases, the dispenser may become clogged or components may need to be cleaned or replaced without removing any components from the series of taped components. ,
It is desirable to remove this series of taped components from the dispenser.

This bidirectional rotation feature is achieved by the operator grasping the knob 146 of the shaft 62 and pulling the shaft 62 against the biasing force of the spring 140 (FIG. 2) such that the end 128 of the shaft 62 is The clutch 130 is disengaged, and then the shaft 6
2 can be rotated in the opposite direction to move the tape-fastening component back out of the dispenser.

Next, referring to FIG. 3, the figure shows an indexing mechanism (in
dexing mechanism) 148, which controls the feeder wheel to rotate incrementally, thereby cutting one part at a time from the series of taped parts. . An indexing wheel 150 is keyed to the axle 62 at reference numeral 151 and is connected to the wheel 8.
There are 6.88 teeth 94 and the same number of detents 152.

Spring 15 supported by pin 156 attached to plate 14
4 biases the roller 158 into the return 152 of the wheel 150. A rear portion 160 of spring 154 is supported within a hole 162 in plate 12. For each incremental rotation of shaft 62, roller 158 moves to the next detent 1 on wheel 150.
52 and stops further rotation of the shaft 62. This occurs during each rotation of shaft 62 during lead wire work. An additional bearing support 164 surrounds the shaft 62 and is secured to the support plate 12 with screws 166.

'Next, to explain Figure 1, the diagram shows the trajectory 46.48
6 shows the shape of the lower portion of the holder which guides the removed part out of the dispenser in a direction opposite to the rotation of the shaft 62. A lower portion 168 of the track 46.48 extends outwardly from the dispenser and slopes downwardly to transport the part to the next in-line part handling device, such as a chain conveyor 169 in a sequential actuator. It has become.

Mounted on the support plate 12 is a resilient stop 170 with resilient fingers 172.174, which act when the component lead is in the lower part 168 of the track 46.48. It extends into the passageway. Fingers 172, 174 serve to retain the component lead within track section 168 until the component lead is gripped by a portion of the conveyor (not shown) for removing the component from the dispenser. Additionally, the downward biasing force of the fingers 172, 174 against the face of the lead wire biases the lead wire down the downwardly sloped portion 168 of the track 46.48 when the lead wire is gripped for removal. Please note that this will help you remove this part from the dispenser.

If the lower portion 168 of the track 46.48 has a rearwardly extending sloped shelf 171 (FIG. 1), the stop 170 may be omitted and the cut part is removed from the dispenser before being removed from the dispenser. Note that it can rest on the shelf 171.

Also, a pair of wheels 176.1 for securing the outer lead wires.
78 (FIG. 2), the wheels 176.
178 engages the end of the elongated lead wire to be dispensed, assists in guiding the lead wire through the dispenser, and assists in removing the taped cut lead wire from the dispenser. Wheel 176.178
are keyed to the shaft 62, each pair having a support
Stripper bar 18 adjustably mounted on shaft 74
It has 0. The stripper bar has an inclined surface 182
The cutting surface facilitates removal of the taped cut lead wire from the dispenser as it is rotated by the wheels 176,178.

As can be seen from the above description, a two-way dispenser feeds taped parts directly to a pair of driven feeder wheels that pull the taped parts from a source. Additionally, the feeder wheel has an optimal number of teeth for gripping multiple component leads to minimize the load on each lead during lead feeding and cutting operations. Also, by using a stationary knife that cooperates with the rotating feeder wheel, forces on the lead wire during cutting are removed.

Furthermore, all actuating members of this mechanism can be easily adjusted to accommodate different lengths of parts to be handled by the dispenser.

[Brief explanation of the drawing]

1 is a sectional view taken along line 1-1 in FIG. 2 and shows the guide, chute, and feeder wheel of the dispenser of the present invention; FIG. 2 is a front view of the dispenser of the present invention; and FIG. , a cross-sectional view taken along line 3-3 in FIG. 2 to show the indexing mechanism of the dispenser of the present invention, FIG. 4 is a plan view of the dispenser of the present invention, and FIG. 5 is a feeder wheel of the dispenser of the present invention. and a perspective view of the cutting mechanism. 12... Rear support plate, 14.16... Side plate, 18.
... Shaft for supporting guide, 26.28 ... Threaded part of shaft, 30.32 ... Parts guide, 42.44 ...
・Guidance chute, 46.48...Guidance trajectory, 62...
- Drive shaft of feeder wheel, 86.88... Feeder wheel, 94... Teeth of feeder wheel, 98.
100...Knife, 130...One-way clutch, 1
38... Solenoid, 140... Spring for drive shaft bias, 142... Collar for spring support, 148... Indexing mechanism, 168... Lower portion of guide chute, 17
6.178...Guide wheel.

Claims (1)

[Scope of Claims] 1. A dispenser for obtaining a taped chain of an axial electrical component lead wire from a supply source and separating the component lead wire from the taped chain, comprising: (a) a support frame (12, 14, 16); (b) 1 adapted to receive the taped linkage (T) of said component (C) along the end of said component's lead wire (L); a pair of guide members (30, 32); (c) a threaded engagement portion (26) rotatably mounted to said frame and with said guide members (30, 32);
, 28), the shaft (18) having a shaft (18) such that when the shaft (18) is rotated, the spacing relationship between the guide members (30, 32) changes; d) being supported by the frame (12, 14, 16) and cooperating with the guide member (30, 32) to provide a taped connection of the component (C) from the guide member (30, 32); a pair of guide chutes (42, 44) having tracks (46, 48) for receiving the body (T); (e) a shaft supported and driven by the frame (12, 14, 16); (62), a pair of feeder wheels (86, 86) attached to the feeder wheel (62);
86, 88) are arranged below the tracks (46, 48), and each grips the component lead (L) and taps the taped link (T) of the component (C). a pair of feeder wheels (86, 88) having means (94) for pulling from said source; (f) fixed to said frame (12, 14, 16) and juxtaposed to said gripping means (94); A pair of stationary knives (98, 100) for cutting each component lead wire (L) from the tape-fixed chain (T) of the component (C), wherein the electric component dispenser is provided with: . 2. The tracks (46, 48) are downstream of the feeder wheel and include means (168) for discharging parts from the dispenser.
) The electrical parts dispenser according to claim 1, characterized in that it has: 3. Component lead wire (L) from the tape-fastened chain (T)
Means (1) for driving the shaft (62) in a first direction during cutting of the
38), characterized in that said shaft (62) is releasable from said drive means (138) for rotation in the opposite direction to remove said taping link (T) from the dispenser. An electrical component dispenser according to claim 1. 4. The drive means (138) is a one-way drive mechanism (130)
a solenoid (138) coupled to the shaft (62) via
and said shaft (62) is connected to a frame (12, 14,
16) The electrical component dispenser according to claim 3, wherein the electrical component dispenser is axially slidable on the electrical component dispenser. 5. One-way drive mechanism (130) by biasing the shaft (62)
5. An electrical component dispenser as claimed in claim 4, characterized in that it comprises means (140, 142) for driving engagement with the electrical component dispenser. 6, guide member (30, 32), track (46, 48),
Feeder wheels (86, 88) and knives (98, 1
00) is mounted adjustably for repositioning with respect to its respective lateral spacing in order to adapt to the implementation of parts (C) of different lengths The electrical parts dispenser according to item 1. 7. A fixed knife (98, 100) is mounted on a leg (102, 104) fixed to the frame, the cutter (122) being angularly disposed adjacent to the gripping means (94).
2. Electrical component dispenser according to claim 1, characterized in that it has legs (102, 104) fixed on the parts. 8. said shaft (62) so as to index a single incremental rotational movement of said shaft (62) during cutting of the lead wire (L) of a single part (C) from the taped chain (T); 2. Electrical component dispenser according to claim 1, characterized in that it comprises cooperating indexing means (148). 9. The indexing means (148) is mounted on the axle (62) and includes a plurality of detents (152).
0) and the frame (12, 14, 16), the detent (1) is attached during each index rotation of the shaft (62).
spring-biased locking means (1) positionable within (52);
54, 158). The electrical component dispenser according to claim 8, characterized by comprising: 10. A dispenser for obtaining a taped string of axial electrical component leads from a source and for separating said component lead from said taped string, comprising: (a) a support frame (12, 14); , 16); (b) a shaft (62) attached to the frame (12, 14, 16) and rotatably driven; (c) fixed to the shaft (62); a pair of feeder wheels (86, 88) having a plurality of radially extending peripheral teeth (94) adapted to grip the lead (L) of the component (C); (d) said teeth (94) are adapted to pull said taped linkage (T) from said source when said shaft (62) is driven; (e) said teeth (94) ), and cooperates with the teeth (94) to cut the lead wire (L) of the component (C) and attach the component (C) to the tape-fastened chain (T).
A pair of fixed knives (98
, 100), and (f) the teeth (94) grasp the plurality of component lead wires (L), minimize the tensile load applied to each predetermined component lead wire (L), and An electrical component dispenser, characterized in that the number of the lead wires (L) is sufficient to prevent the lead wires (L) from being bent or distorted during cutting. 11. The knife (98, 100) is attached to the frame (12, 14
, 16). The electrical component dispenser according to claim 10, wherein the electrical component dispenser is fixed to , 16). 12. means (138) for driving the shaft (62) in one direction;
) and coupling means (130) for connecting the shaft (62) to the drive means (138), the shaft (62)
2) is disengageable from said coupling means (130) to allow rotation of said shaft (62) in the opposite direction in order to remove the taped linkage (T) of part (C) from the dispenser. An electrical component dispenser according to claim 10, characterized in that: 13. Electrical component according to claim 10, characterized in that it comprises indexing means (148) cooperating with the shaft (62) so as to hold the shaft (62) in a state of incremental rotation. dispenser. 14. A patent claim characterized in that guide wheels (176, 178) are provided on the shaft (62) outside the feeder wheels (86, 88) for moving the cut part lead out of the dispenser. The electrical parts dispenser according to item 10. 5. guiding means (30, 32) for receiving a taped chain (T) from a source and for guiding said taped chain (T) through feeder wheels (86, 88) and for dispensing removed parts; Orbital means for transporting outside (
46, 48). The electrical component dispenser according to claim 10, characterized in that it comprises: 46, 48). 16. Electrical parts dispenser according to claim 15, characterized in that the track means (46, 48) guide the removed parts out of the dispenser in a direction opposite to the direction of rotation of the shaft (62).