JP3341804B2 - Transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveying device which can use a desired number of conveying belts connected in series by engaging a plurality of connecting plates on the conveying belt.

[0002]

2. Description of the Related Art FIG. 8 shows an electric wire terminal processing apparatus using a conventional conveying apparatus described in Japanese Patent Application Laid-Open No. 55-144677.

The transfer device 51 includes a sprocket 62 which is rotated by a motor (not shown), an endless chain 52 meshed with the sprocket 62, and a plurality of electric wire clamps 53 which move integrally with the chain 52. The wire clamp 53 projects above the bed 55 of the terminal processing device 54,
The terminal crimping machine 61 grasps both ends of the cut electric wire 56 and holds it.
Transport to

In the figure, reference numeral 57 denotes a measuring roller for sending out the electric wire 56, and 58 denotes a reversing roller for reversing the electric wire 56. After the reversing roller 58 grips the tip of the electric wire 56 and inverts it, and the measuring roller 57 feeds the electric wire 56 to a required length in a U-shape, a cutter (not shown) cuts the base of the electric wire 56. The cut electric wire 56 is gripped by the clamp 53, and is intermittently fed to each station by the driving of the chain 51, such as a peeling machine 59, a peeling checker 60, and a terminal crimping machine 61.

[0005]

However, in the conventional transfer device 51, the transferable distance, that is, the total length of the chain 52 is determined at the design stage.
Even if it is desired to increase the number of processing units such as the peeling machine 59 and the crimping machine 61 according to the specifications of the wire harness, etc., it was not possible to cope with such a case.

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to provide a transfer device which can easily cope with a change (increase or decrease) in a processing unit.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention comprises a plurality of timing belts arranged in series and close to each other, an engaging recess meshing with a tooth portion of the timing belt, and a guide. And a plurality of connecting plates having a pair of rollers are continuously arranged in a loop over the entire length of the plurality of timing belts, and guide rails for engaging the rollers are provided along the plurality of timing belts. The transport device is basically used. Then, arc-shaped turning guide rails for engaging the rollers are arranged at the start end and the end of the plurality of timing belts. Further, the engaging recess is provided at the front and rear and the center of the connection plate, and the roller is provided at the front and rear of the connection plate. Further, a clip for holding an electric wire is provided on the connection plate.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 are overall views showing an embodiment of the transport device according to the present invention.

The transport device 1 includes a first transport frame 4 having a drive motor 2, a timing belt 3 driven by the drive motor 2, and a rotatable timing belt 5.
A long second transport frame 6 arranged in series in the vicinity of the belt transport direction (arrow A) of the first transport frame 4 and a rotatable timing belt 7,
Each of the third transfer frames 8 arranged in series near the rear of the second transfer frame 6 and the timing belts 3, 5, and 7 of each of the transfer frames 4, 6, and 8 are continuously meshed with each other. A plurality of connecting plates that move across the timing belts;

The timing belts 3, 5, and 7 mesh with timing pulleys 28 to 33, respectively.
It is driven by the rotation of 33. Each of the transport frames 4, 6, 8 is moved by a caster 10 and fixed to a floor 12 by a jack 11. A plurality of processing units such as an electric wire feeding and cutting machine 13, a peeling machine 14, and a terminal crimping machine 15 are arranged on the frames 4, 6, and 8. The drive motor 2 is installed only on the first transport frame 4 and the second and third transport frames 6,
8 and fourth to fifth other transport frames (not shown) are appropriately selected and used according to the number of processing units 13 to 15.

The plurality of connecting plates 9 serve to connect the timing belts 3, 5, 7 of the respective transport frames 4, 6, 8. Each connecting plate 9 is provided with a pair of electric wire gripping clips 16 at the same pitch. The electric wire 17 (FIG. 2) cut to a required length by the electric wire supply / cutting machine 13 and turned into a U-shape is driven into the clip 16 by the driving chuck 18 and is gripped. Next, during the movement along the timing belts 3, 5, and 7, peeling, terminal crimping, and the like are performed, and the end of the timing belt 7 is gripped by the transfer chuck 48 and sent to the next step.

FIGS. 3A and 3B show the connecting plate 9 having a pair of clips 16. The clip 16
Is a male screw 21 in a groove 20 of a plate 19 made of synthetic resin.
It is fixed at. The configuration of the clip 16 is known, and the electric wire 17 can be gripped between a pair of elastic claws 16a made of synthetic resin. The plate 19 is formed of a synthetic resin,
At the front and rear and at the middle of the bottom, there are engaging recesses 23 meshing with the teeth 22 of the timing belts 3, 5, and 7. The engagement recess 23 is formed between a pair of projections (teeth) 23 ′,
It has the same trapezoidal shape as the teeth 22 of the timing belt 3.

The distance from the front and rear ends of the plate 19 to the clip 16 is 1/2 of the pitch P of the pair of clips 16, and the distance between the clip 16 of another adjacent connecting plate 9 and the clip 16 of the connecting plate 9 Are equal (pitch). A pair of rollers (bearings) 24 are rotatably supported at the front and rear of the plate 19. Axis 2
5 is fixed through the plate 19, the inner ring 24a of the roller 24 is pressed into both ends of the shaft 25, and the outer ring 24b is rotatable around the inner ring 24a. The rollers 24 are provided on the guide rails 2 of the transport frames 4, 6, 8 as shown in FIG.
6 is engaged with the guide groove 27.

FIG. 4 shows a connection state between the second transport frame 6 and the third transport frame 8. The connection state between the first transport frame 4 and the second transport frame 6 has a shape that is symmetrical with respect to FIG.

A plurality of connecting plates 9 are arranged in series on the timing belts 5, 7 of each of the transport frames 6, 8, respectively. In each of the transport frames 6 and 8, straight guide rails 26 for the rollers 24 of the connecting plate 9 are horizontally installed along the upper and lower two rows of the timing belts 7, respectively. Each roller 24 is rotatably engaged with a central horizontal guide groove 27 of a guide rail 26.

The connecting plate 9 is supported by the guide rail 26 and the timing belts 5 and 7 so as to be sandwiched in the vertical direction. The guide rails 26 are provided for each of the transport frames 6 and 8 and are connected simultaneously with the arrangement of the transport frames 6 and 8. In FIG. 4, A indicates a connecting portion of the guide rail 26.

In FIG. 4, the length L of the connecting plate 9 (= 2P)
Is equal to the interval between the timing pulleys 31 and 32 of the adjacent transport frames 6 and 8. Each timing belt 6,8
It is desirable that the front and rear engaging recesses 23 of the connecting plate 9 can be engaged with the respective tooth portions 22 of the adjacent timing belts 5 and 7 at the same time in the transfer portion 34 between the two. The above configuration is the same for the relationship between the first transport frame 4 and the second transport frame 6. At the terminal end of the third transfer frame 8 and the start end of the first transfer frame 4, the connecting plate is turned by using an arc-shaped guide rail 35.

FIG. 5 shows the transfer section 34 of the transport frames 6 and 8 in an enlarged manner. Between each conveyor frame 6 and 8 are subsequently guide rails 26 are continuously, the connection plate 9 ₁ located at the rear end portion of one of the timing belt 5 proceeds straight along the guide rails 26, the other Move to the front end of the timing belt 7. Thereby, the transport frames 6 and 8 are connected. On the back side of the timing belts 5 and 7, a concave groove 36 meshing with the teeth 35 of the timing pulleys 31 and 32 is formed.

FIG. 6 shows the turning operation of the connecting plate 9 at the end of the transport frame 8. The same applies to the configuration and operation at the start end of the transport frame 4. The connection plate 9 turns in the direction of arrow B with the roller 24 along the arc-shaped guide rail 35. Swivel guide rail 3
Reference numeral 5 denotes an outer guide 38 having an arc surface 37 having a length of about ／ of the circumference, and an inner guide 39 located inside the outer guide 38. The inner guide 39 has a straight portion (straight face) 40 located on an extension of the guide groove 27 of the straight guide rail 26, and an end 40 of the straight portion 40.
From (a), an arc surface 37 of the outer guide 38 and an arc portion (arc surface) 41 concentrically curved and continuing.

Between the outer guide 38 and the inner guide 39 above and below the revolving guide rail 35, an arcuate surface 37 is provided.
A substantially crescent-shaped space 42 sandwiched between the front face 40 and the front face 40 is formed. From the starting end 37a of the arc surface 37 to the straight face 4
0 to the end 40a is determined by the front and rear rollers 24 ₁ , 24
Than ₂ pitch () P ₁ is slightly smaller setting, the front roller 24 ₁ is always both circular arc surfaces when the orbiting 37,4
1 is guided. The turning guide rail 35 is connected to a rear end 26 a of the straight guide rail 26.

Then, on the upper straight guide rail 26,
The connecting plate 9 advanced along the guide rail 3 for turning.
5 moves horizontally along the straight part 40 of the inner guide 39
And the front roller 24₁Is the arc surface 37 of the outer guide 38
Starts rotating when it comes into contact with the rear roller 24._TwoAlso
The outer guide 38 starts rotating along the arc surface 37. So
Roller 24 before and after₁, 24_TwoIs the circle of the outer guide 38
Rotation along the arc surface 37 and the arc surface 41 of the inner guide 39
Then, the turning is completed, and the lower straight guide roller 26 is turned. _TwoTo
Return along.

At the time of turning, the engaging recess 2 at the center of the plate
3 engages with the tooth portion 22 of the timing belt 7 on the timing pulley 33, and
4 _1, pivots and 24 ₂ as a fulcrum. Outer guide 38
It is essential that the inner diameter dimension of the circular arc surface 37 is larger than the length L of the connection plate 9.

FIG. 7 shows an example of driving means for the timing belts 3, 5, and 7 of the transport frames 4, 6, and 8. One rotating shaft 43 is disposed in the longitudinal direction of each of the timing belts 3, 5, 7 from the first carrying frame 4 to the third carrying frame 8, and the drive motor 2 of the first carrying frame 4 is attached to the rotating shaft 43. Bevel gears 45 and 46 are connected to a center shaft 48 of each of the timing pulleys 29, 31 and 33 and the rotating shaft 43, respectively.

The rotating shaft 43 is connected to each of the transport frames 4, 6, and 8 by a joint 47. When the rotating shaft 43 is driven by the motor 2, the driving force is uniformly transmitted to the respective timing belts 3, 5, 7 via the respective bevel gears 46, 45,
The timing belts 3, 5, and 7 rotate in synchronization. Thereby, reliable conveyance is performed.

If the rotational resistance of the timing belts 5 and 7 of the second and third transport frames 6 and 8 is small, the timing belt 3 of the first transport frame 4 or the timing belt of the third transport frame 8 may be used. It is also possible to transmit the power via the connecting plate 9 as a structure for driving only 7. In addition, the transfer device 1 can be applied to uses other than the transfer of electric wires.

[0026]

As described above, according to the present invention, by arranging a desired number of timing belts in series and continuously arranging connecting plates on the outer periphery thereof, the number of timing belts can be adjusted according to the number of wire end processing units. The transport length can be obtained. Thus, various wire ends can be processed, and wire harnesses of various specifications can be manufactured.

[Brief description of the drawings]

FIG. 1 is a front view showing an entire embodiment of a transfer device according to the present invention.

FIG. 2 is a side view showing the transport device.

3A is a front view showing a connecting plate, and FIG. 3B is a side view of the same.

FIG. 4 is a front view showing a main part of the transfer device.

FIG. 5 is a front view showing a transfer operation of a connecting plate in a transfer section of the transfer device.

FIG. 6 is a front view showing a turning operation of a connecting plate at an end of the transfer device.

FIG. 7 is a front view illustrating an example of a drive mechanism of the transport device.

FIG. 8 is a perspective view showing an electric wire terminal processing apparatus using a conventional conveying apparatus.

[Explanation of symbols]

 3, 5, 7 Timing belt 9 Connecting plate 16 Clip 22 Tooth 23 Engaging recess 24 Roller 26 Straight guide rail 35 Swivel guide rail

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65G 17/00-17/48 B54G 37/00

Claims (4)

(57) [Claims] 1. A timing belt comprising: a plurality of timing belts arranged in series and close to each other; and a plurality of connecting plates having engagement recesses meshing with teeth of the timing belts and guide rollers. And a guide rail for engaging the rollers is provided along the plurality of timing belts. 2. The conveying device according to claim 1, wherein arc-shaped turning guide rails for engaging the rollers are arranged at the start end and the end of the plurality of timing belts. 3. The transport device according to claim 1, wherein the engaging recess is provided at the front and rear and the center of the connecting plate, and the roller is provided at the front and rear of the connecting plate. 4. The transport device according to claim 1, wherein a clip for holding an electric wire is provided on the connection plate.