JPS6310051B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a conveyor for transporting parts used in automatic assembly machines and the like.

Conveyors for transporting parts used in automatic assembly machines need to be positioned with high precision in order to automatically handle parts in subsequent processes, and usually guide plates are placed at intervals slightly wider than the width of the pallet or parts. , and by flowing the parts between these guide plates, lateral displacement is prevented. This guide plate is usually fixed to the frame, and when changing the width of a part, it is usually necessary to remake the guide plate, or at least reinstall the guide plate at the required spacing. Ta.

The present invention aims to eliminate the drawbacks of the conventional guide plates and provide a conveyor in which the interval between the guide plates can be changed very easily.

The present invention will be explained below based on examples.

Figure 1 is a plan view showing one embodiment of the present invention, Figure 2 is a plan view showing one embodiment of the present invention;
The figures are AA sectional view of Fig. 1, Fig. 3, Fig. 4, and Fig. 5.
The figures are sectional views of BB, CC, and DD in Fig. 2, respectively.

In the drawing, a pair of pulley mounts 2 are provided at both ends of a pedestal 1. The mounting bases 2 and 2' have threaded shafts 3 and 3' with right-handed and left-handed threads on both ends.
are rotatably provided, and flanges 4, 5 and 4', 5', each having a right-hand thread and a left-hand thread, are screwed together. Guide plates 6, 7 are fixed to the flanges 4, 5, and extend along the entire length of the conveyor, and are similarly fixed to the flanges 4', 5' at the other end. Pulleys 10 and 11 are provided on the flanges 4 and 5 via bearings 8 and 9. A sprocket 12 is fixed to the center of the screw shaft, and a chain 13 is wound around the sprocket 12' of the pulley mount 2' at the other end.

The motor 14 is suspended vertically from the frame 1, and transmits driving force to the sprocket 18 of the drive pulley mount 17 via the sprocket 15 and chain 16. The sprocket 18 is fixed at the center of a drive shaft 19 rotatably supported on a mounting base 17.
It has driving pulleys 22 and 23 slidably provided on both sides via keys 20 and 21. The drive pulleys 22 and 23 are connected to the guide plates 6 and 7 and the support plate 24,
It is guided by thrust plates 26 and 27 provided at 25 and slid in the axial direction by guide plates 6 and 7.

Tension pulleys 28, 29 are connected to shafts 30, 31
It is rotatably supported by and attached to guide plates 6 and 7.

The two conveyor belts 32, 33 are connected to the drive pulleys 22, 23, pulleys 10, 11 and 1.
0' and 11', and is stretched by tension pulleys 28 and 29 so as to have an appropriate tension. The above-mentioned support plates 24 and 25 are provided on the lower surfaces of the conveyor belts 32 and 33, and support the weight of the parts during conveyance, thereby reinforcing the rigidity of the guide plates 6 and 7.

When one screw shaft 3 is rotated, the other screw shaft 3' is also rotated in the same way since it is connected by a chain 13. The screw shaft 3 is threaded on the left and right, and the flanges 4 and 5 to which the guide plates 6 and 7 are fixed are screwed together, so the interval between the guide plates 6 and 7 is adjusted by rotating the screw shaft 3. It can be adjusted to be wider or narrower, and the pulleys 10, 11 can also be adjusted by the guide plate 6,
Move at the same time as 7. On the other hand, on the drive shaft 19, the keys 20 and 21 transmit rotational force, and the drive pulley 2
The widthwise positions of 2 and 23 are determined by the guide plates 6 and 7 and the thrust plates 26 and 27, and the tension pulleys 28 and 29 are attached to the guide plates 6 and 7, so that the tension pulleys 28 and 29 are fixed to the rotation of the screw shaft 3. Yotsute information board 6,
When adjusting or changing the position of 7, pulley 1
0, 11, 10', 11', drive pulley 22, 2
3 and tension pulleys 28, 29 also move together with the guide plates, and the conveyor belts 32, 33 also move with the movement of the guide plates 6, 7 without any hindrance.

Since the present invention is configured as described above, the width of the conveyor can be determined and adjusted extremely easily with respect to the width dimension of the parts, and the center position of the conveyor does not change. In particular, when used as a conveyor for transporting parts of an assembly machine that switches between assembling multiple types of parts, it has the effect of greatly shortening the switching time.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a sectional view along AA in Fig. 1, and Figs. 3, 4, and 5 are sectional views BB and CC in Fig. 2, respectively. , D.D.
FIG. 1... Frame, 2... Pulley mounting base, 3... Screw shaft,
4, 5...flange, 6,7...guide plate, 10,11
...Pulley, 12...Sprocket, 13...Chain, 17...Drive pulley mounting base, 19...Drive shaft,
20, 21...Key, 22, 23...Drive pulley,
24, 25... Support plate, 26, 27... Thrust plate, 28, 29... Tension pulley, 32,
33...Conveyor belt.

Claims (1)

[Claims] 1 A pair of guide plates that guide the sides of the pallet or parts being conveyed, and a pair of pulleys each at at least the front and rear ends of the pair of guide plates, each of which is wrapped with an endless belt. In a rotating conveyor, each of the pair of guide plates has a pulley rotatably provided at least at the front end and the rear end of the guide plate, and both of the pair of guide plates A drive pulley that only rotates from a common drive shaft and is movable together with a guide plate, and an endless conveyor belt that winds between these pulleys and is fixed to the guide plate and is given a predetermined tension by a tension pulley. The pair of guide plates face each other with the endless belt inside.
A pair of guide plates are provided with a pair of right-handed and left-handed female threads engraved at the front and rear end positions of the guide plates, facing each other, and are attached to screw shafts that are screwed into the right-handed and left-handed threads. A width-adjustable conveyor characterized in that the conveyors are connected so that they can approach and separate, and the screw shafts are connected to each other so that they can rotate synchronously.