JPS6234654B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transport mechanism for a conveying body having a plurality of receivers arranged at equal intervals on a straight line, in which members supplied one by one are sequentially received by the receivers. In particular, it relates to a transfer mechanism of a conveyor for conveying such materials, and in particular, a plurality of said members received in a receiver of one conveyor are processed in the next process or collectively transferred to equipment. The present invention relates to a transport mechanism for the transport body, which is particularly effectively used when the transport body is assembled.

To explain with reference to the reference numerals of the illustrated embodiments, the transfer device of the present invention has an outward path formed by a fixed guide groove 6a and a return path formed by a fixed guide groove 7a, and the outward path and the return path are parallel to each other. It is. Adjacent to both ends of the fixed guide grooves 6a, 7a, a guide tube 8 for transferring the carrier 1 from the return path to the outward path, and a guide tube 9 for transferring the carrier 1 from the outward path to the return path are provided.
The guide tubes 8, 9 are rotatable around an axis B parallel to the fixed guide grooves 6a, 7a, and rotation transmitting means 10, 12, which intermittently rotate the guide tubes synchronously in the same direction.
14, 13, and 11 are provided. In addition, in FIGS. 3 and 4, the arrows indicating the rotation directions of the guide tubes 8 and 9 are shown in opposite directions in the drawings because FIG. 3 is from the left in FIG. 1 and FIG. This is because each guide tube is shown as viewed from the right side of FIG.

On the circumferential surface of the guide tubes 8, 9, three or more guide grooves 8a to 8d and 9a to 9d of the same number are provided at positions equally dividing the circumference, and these guide grooves 8a, 9a to 8d, 9d is parallel to the fixed guide grooves 6a and 7a. Fixed guide grooves 6a and 7
The spacing between a and the guide grooves on the guide tubes 8 and 9 is equal to that of the guide grooves on the guide tubes 8 and 9. Therefore, when the guide grooves 8a and 9a of the guide tubes are on the extension of the fixed guide groove 6a, the adjacent The guide grooves 8d and 9d are fixed guide grooves 7.
It is an extension of a.

Engagement elements 4...4 are provided on the lower surface of the carrier 1 at a pitch equal to the arrangement pitch of the receivers 3, and the engagement elements 4 and The drive shaft 2 is fixedly provided with engaging/disengaging claws 22 and 23.
1 is given a repetitive motion of moving forward, rotating, retreating, and rotating backwards. Then, the pawls 22 and 23 move forward in a state where they are engaged with the engaging elements 4 of the conveyance bodies 1a and 1b on the outward path, and feed the conveyance bodies 1a and 1b one pitch. The engagement of the drive shaft 21 is switched from the forward transport bodies 1a, 1b to the engagement elements 4 of the return transport bodies 1f, 1e.
is moved backward to send back the transport bodies 1e and 1f one pitch, and the drive shaft 21 is further rotated in the reverse direction to move the claws 22, 1f back.
23 is switched from the return transport bodies 1f, 1e to the outward transport bodies 1a, 1b.

That is, the conveyance bodies 1a and 1b located on the outward path are guided by the fixed guide groove 6a and the guide grooves 8a and 9a of the guide tube located on the extension thereof, and the conveyed members 27
The conveyors 1e and 1f are intermittently fed one pitch at a time from left to right in FIGS. 1 and 2 in synchronization with the supply cycle of It is guided by the guide grooves 8d and 9d of the guide tube, and is sent back one pitch at a time from right to left in the figure.

A disc 24 is attached to the drive shaft 21, and is rotatably connected to the drive shaft 21 by, for example, a spline, and whose axial position is regulated to a fixed position by an immovable member. A matching element 25 is provided. This fitting element 25 is provided at the same circumferential position as the claws 22 and 23.

Therefore, the fitting element 25 comes to a position on the extension of the return path shown by the imaginary line in FIG. 2 when the claws 22, 23 are rotated to the position where they engage with the carriers 1e, 1f on the return path. When the transport body 1f leading on the return path reaches the end of the return path due to the backward movement of the drive shaft 21, the end of the transport body 1f fits into the fitting element 25. When the drive shaft 21 next rotates in the reverse direction in this state, the guide cylinder 8 is linked to the drive shaft 21 via the carrier 1f and the disc 24 and rotates in the reverse direction (counterclockwise in the top of FIGS. 1 and 2). However, the conveyance body 1f that has been sent back is located at the starting end of the forward path that is connected to the fixed guide groove 6a. Further, the rotational movement of the guide tube 8 is controlled by a gear 10 serving as a rotation transmission means,
12, shaft 14, gears 13 and 11, and the guide cylinder 9 also rotates counterclockwise in FIGS. 1 and 2. Since the guide tube 9 is provided with three or more guide grooves 9a...9d, the rotation angle of the guide tube 9 is smaller than 180 degrees, and the conveyed member 27 is received by the rotation of the guide tube 9. Transport body 1
b goes around to a work station provided in the opposite direction to the return path, and the carrier remains at the work station until the guide cylinder 9 next rotates.

Therefore, it becomes possible to perform the next process on the transported member 27 and to assemble the member into equipment at the work station. The stopping time of the carrier 1b at this work station is the product of the number of receivers 3 provided on the carrier 1 and the supply period of the transported member 27, so the number of receivers 3 on the carrier 1 is adjusted appropriately. By setting this, the stopping time of the transport body at the work station can be arbitrarily set. The conveyor 1b transferred to the work station will rotate to a position adjacent to the fixed guide groove 7a after the guide tube 9 has rotated a plurality of times, and at that time it will move along the return path formed by the fixed guide groove 7a. It will be sent.

The illustrated embodiment will be further described below. In the illustrated embodiment, an engaging groove is used as a member corresponding to the engaging element 4, a claw plate is used as a member corresponding to the claws 22 and 23, and a fitting recess is used as a member corresponding to the fitting element 25. ing.

1 to 4 show one embodiment of the present invention, and the carrier in the illustrated embodiment is configured as a carrier for carrying hollow cylindrical members such as coils and sleeves. The receiver is formed into a pin shape, and the supplied member is transported while being inserted through the receiver.

The carrier 1 is shown with subscripts a to f in FIG. 2, and has a plurality of (N) pin-shaped receivers 3 along the protruding side edge 2a of the base body 2 having an inverted L-shaped cross section. ……
3 are planted at a certain pitch P. The receivers 3a, 3a at both ends are erected at a position P/2 from the end of the base 2, and therefore the base 2 has a length of PN. On the lower surface of the base body 2, N engaging grooves 4...4 are formed at intervals of pitch P to correspond to the receivers 3...3, and are engaged with claw plates to be described later for intermittent feeding. Further, longitudinal guide grooves 5, 5 are formed on the side surface of the base body 2, and are fitted with balls provided in the guide grooves, which will be described later, to prevent the carrier 1 from falling out of the guide grooves.

The transport mechanism of the present invention circulates the transport bodies 1a...1f while intermittently transporting them so that their receivers 3...3 continuously pass directly under the member supply rod 26. It consists of a guide part shown in Fig. 1 and a driving part shown in Fig. 2,
The two are operated in combination with line B-B in the diagram aligned.

In FIG. 1, 6 and 7 are fixedly provided guide blocks.
Fixed guide grooves 6a and 7a are formed in each of them. The fixed guide grooves 6a and 7a are arranged in parallel, and on both sides of the guide tubes 8 and 9, which are provided with rotation guide grooves 8a to 8d and 9a to 9d on the circumference, are rotatable around the axis B-B. It is arranged as follows. These guide grooves 6a, 7a and 8
a, 9a to 8d, 9d are the same NP as carrier 1
It has a length of As shown in the figure, when the rotation guide grooves 8a and 9a are connected to the fixed guide groove 6a and come in line, the rotation guide grooves 8d and 9d are connected to the fixed guide groove 7a, and the guide tube The rotation guide grooves 8a, 8a or 8 are arranged so that such a relationship always holds even when the rotation guide grooves 8, 9 rotate.
d and 9d must be arranged at equal intervals. 1
0 and 11 are gears fixed to the guide tubes 8 and 9, respectively, and the guide tubes 8 and 9 are connected to rotate in synchronization by gears 12 and 13 meshing with these gears and a shaft 14. ing. A cam plate 15 fixed to the shaft 14 is connected to a ball stopper (not shown) so that the rotation guide grooves 8a, 9a to 8d, 9d are held in a position where they are connected to the fixed guide grooves 6a, 7a. The guide grooves 6a, 16, and 16 are provided to hold the guide grooves 6a and 16, respectively, so as to be engaged with the guide grooves 5 of the conveyor 1 described above.
These are balls provided at 7a, 8a, 9a to 8d, 9d. Guide blocks 6, 7 and guide tube 8,
9 is cut out at the connecting part to create a blank space 1
7, 18 are formed, and the fixed guide grooves 6a, 7
Both ends of a and rotation guide grooves 8a, 9a to 8
The bottoms of one ends of the guide grooves d and 9d are open toward the spaces 17 and 18, and the engagement grooves 4...4 of the carrier 1 fitted into these guide grooves are connected to the spaces 17 and 9d.
It appears in the 18th section. The conveyors 1a, 1b shown in FIG. 2 have guide grooves 8a, 6a, 9a.
The carriers 1e and 1f are fitted into guide grooves 9d, 7a, and 8d.
It is inserted into a guide path formed by. Transport bodies 1c and 1d partially shown in Fig. 2
are rotation guide grooves 9b, which are not shown in FIG.
9c (see FIG. 4).

The guide tubes 8, 9 have hollow holes 19, 20, and the drive shaft 21 shown in FIG.
20 so as to be rotatable and slidable. 22,2
Reference numeral 3 denotes a pawl plate fixed to the drive shaft 21, and the pawl plates 22 and 23 are located in the spaces 17 and 18 and engaged with the engagement grooves 4...4. The carrier 1 is moved intermittently.
Reference numeral 24 denotes a disc that is rotatably supported around the axis B-B by a stationary member (not shown) adjacent to the guide tube 8, and the disc 24 and the drive shaft 21 are slidable by a spline or the like. is connected to. Disk 2
4, a fitting recess 25 is formed toward the guide tube 8 in the same direction as the claw plates 22, 23, and the carrier 1f in the guide path formed by the guide grooves 9d, 7a, 8d is The end portion of the carrier 1 is fitted into the fitting recess 25 when the carrier 1 is completely accommodated in the rotation guide groove 8d. The drive shaft 21 is reciprocated with a stroke P by a drive device (not shown), and the disc 24 is rotated at a rotation angle corresponding to the pitch of the rotation guide grooves 8a, 9a...8d, 9d by the drive device (not shown). The drive shaft 21 is rotated reciprocally by both of them, and the drive shaft 21 repeatedly moves forward, rotates, retreats, and reversely rotates. Here, P is the arrangement pitch of the receivers 3...3 of the carrier 1, as described above.

When the drive shaft 21 moves forward one pitch from the state shown in the second figure, the carriers 1a, 1b are moved by the claw plates 22, 23.
is fed one pitch, and then the drive shaft 21 rotates clockwise in the figure, so that the claw plates 22 and 23 engage with the engagement grooves 4 of the carriers 1f and 1e, respectively. Then, as the drive shaft 21 moves back one pitch, the carriers 1f and 1e are sent back one pitch, and then the drive shaft 21 rotates counterclockwise in the figure, and the claw plates 22,
23 is engaged with the next engagement groove 4 of the carriers 1a, 1b, and by repeating this movement, the carriers 1a, 1b are engaged.
1b is intermittently sent out toward the rotation guide groove 9a, and the carriers 1f and 1e are intermittently sent back toward the rotation guide groove 8d. During this time, the conveyed member 27 is transferred from the supply rod 26 to the receiver 3 of the conveyor 1a.
supplied to

In this way, the carrier 1a is fixed to the fixed guide groove 6a.
After the transport bodies 1b are sent out in a state where they are completely accommodated in the rotation guide grooves 9a, the drive shaft 21
When the carrier 1f rotates clockwise and retreats, the carrier 1f is completely sent back to the rotation guide groove 8d and its end is fitted into the fitting recess 25, and the carrier 1e is moved back to the fixed guide groove 7a.
It will be in a completely stored state. At this time,
As shown in FIGS. 3 and 4, the rotation guide groove 8
Nothing is stored in a, 8b, 8c, and 9d, and the conveyor 1f is stored in the rotation guide groove 8d, 1b is stored in 9a, 1c is stored in 9b, and 1d is stored in 9c. It is becoming. When the drive shaft 21 rotates in the reverse direction, the guide tubes 8 and 9 engaged with the fitting recess 25 via the carrier 1f rotate in the direction of the arrow in FIGS. 3 and 4, and the rotation guide groove 8
d and 9d become 8a and 9a, respectively, and are connected to the fixed guide groove 6a, and rotation guide grooves 8c and 9c, respectively, become 8d and 9d, and are connected to the fixed guide groove 7a,
Next, when the drive shaft 21 moves forward one pitch, the conveyor 1 moves forward.
When f becomes 1a, it is fed out one pitch into the fixed guide groove 6a and is disengaged from the fitting recess 25, and the above-described intermittent feeding operation is repeated. Then, the rotation guide groove 9a shown in FIG. 4 becomes 9b, and 9b becomes 9c.
These will remain in this position until the guide tube 9 rotates next time. Therefore, 9 in Figure 4
The rotation guide groove shown in b can be used as a processing station for collectively processing the next process on the members 27 received by the conveyor 1c, or alternatively, the rotation guide groove shown in This means that it can be used as an assembly station for assembling it into equipment.

FIG. 5 shows a plan view of the entire device when the transfer mechanism of the present invention is adopted in an air-core coil soldering device, where a indicates the transfer device of the present invention;
b is a solder processing device, and c is a transfer device for transferring the carrier 1 between the transfer device a and the solder processing device b. The conveying device c is a guide rod 2
The transport body 1c, which has been rotated to the position 9b in FIG. 4, is loosely held at both ends by the transport frame 29 and fixed. Pass through guide 30 to solder processing device b
transported to. The solder processing device b holds the carrier 1c sent by the holder 31, and also holds the holder 3... by the holding pieces 32...32.
The entire member (air-core coil) inserted into the carrier frame 29 is lowered, the lead ends are immersed in the solder tank 33 for soldering, and then returned to the initial position. is sent back to the guide groove 9b. This series of operations is performed while the guide tube 9 is stopped, and when the guide tube 9 rotates next, the carrier 1c rotates to the position 1d in FIG. 4 and the soldering process is performed. The air-core coil is dropped and discharged. Note that 34 in FIG. 5 is an air-core coil alignment device mounted on the carrier 29.

As described above, the transfer mechanism of the present invention relates to a transfer mechanism of the conveyor 1 for sequentially receiving and conveying members supplied one by one to a receiver, and has a simple structure and a drive mechanism. Since the circulating conveyance body 1 is held in a stopped state at a specific position, the receiver 3 is held at the stopped position.
. . . Necessary processing can be performed on the transported members received in step 3 all at once, or the transported members can be collectively assembled into the equipment at the relevant position. The stopping time of the conveyor at this stop position is determined by the product of the number of receivers attached to one conveyor and the supply cycle of the conveyed member. An excellent feature is that by appropriately determining the number of receivers to be used, the structure can be configured to match the supply speed of the parts, regardless of the time required for processing or assembling the transported parts. It has the following.

In addition, in the illustrated embodiment, there are four guide tubes 8 and 9.
For example, by providing eight book rotation guide grooves, it is possible to have two stopping positions for processing or assembling, and furthermore, it is possible to have eight book rotation guide grooves. If means are provided to prevent dropped members from falling, more processes can be performed sequentially.

[Brief explanation of the drawing]

1 and 2 are exploded perspective views showing one embodiment of the present invention, and the members shown in FIGS. 1 and 2 are in a state where the line B-B in the figures is aligned It operates in combination with Third
4 and 4 are diagrams schematically showing the relationship between the guide tube and the conveyor at a certain point in time during operation. FIG. 3 is a left side view showing the left guide tube, and FIG. 4 is a left side view showing the right guide tube. FIG. FIG. 5 is a plan view showing an air-core coil soldering apparatus having a transfer mechanism according to the present invention. In the figure, 1a to 1f are carriers, 3 is a receiver, and 4
are engagement grooves, 6 and 7 are guide blocks, 6a and 7a are fixed guide grooves, 8 and 9 are guide cylinders, 8a to 8d,
9a to 9d are rotation guide grooves, 10 to 13 are gears, 14 is a shaft, 21 is a drive shaft, 22 and 23 are claw plates, 24 is a disk, 25 is a fitting recess, and 26 is a member supply rod.

Claims (1)

[Claims] 1. In a transfer mechanism that continuously circulates and transfers a plurality of carriers 1 in which a plurality of receivers 3 holding conveyed members 27 are arranged in a straight line at a constant pitch P, fixed guides provided parallel to each other. Grooves 6a and 7a
The guide tubes 8 and 9 are provided adjacent to both ends of the fixed guide groove and are rotatable around an axis B parallel to the fixed guide groove. Rotation transmitting means 10, 12, 14, 13, 11 for synchronously rotating the guide cylinders are provided, and the guide cylinders 8, 9 have three or more guide grooves 8a...8d and 9a... at positions equally dividing the circumference. ...9d is provided in parallel with the fixed guide grooves 6a and 7a, and the fixed guide groove 6a is
and 7a are disposed so as to be connected to mutually adjacent guide grooves on the guide tubes 8 and 9, and engaging elements 4...4 are provided on the lower surface of the conveyor 1 at a pitch equal to the arrangement pitch of the receiver 3. A drive shaft 21 that repeatedly moves forward, rotated, retreated, and reversed is inserted through the axes of the cylinders 8 and 9, and this drive shaft has claws 22 and 23 that engage and disengage the engagement element 4.
is fixedly installed so that the carriers 1a and 1b fitted in one of the fixed guide grooves 6a are intermittently sent out, and the carriers 1e and 1f fitted in the other fixed guide groove 7a are intermittently sent back. , the drive shaft 2 is installed at the end of the return path.
A fitting element 25 is provided that reciprocates at a fixed position in the axial direction in synchronization with the rotational movement of step 1, and the carrier 1f, which has reached the end of the return path when the drive shaft 21 retreats, is fitted with the fitting element 25. When the drive shaft 21 rotates in the reverse direction, the guide cylinders 8 and 9 are rotated, and the rotation of the guide cylinders sends the carrier 1f that has reached the end of the return path back to the starting end of the outward path, and Conveyor 1 reaches the end
b to a work station on the opposite side of the return path, the plurality of carriers 1 are stopped at the work station for a predetermined period of time, and circulated while being continuously and intermittently transferred. A transport mechanism for a carrier having a tool.