JPS58130815A - Direction correcting unit for objects to be transported - Google Patents

Abstract

PURPOSE:To correct the orientation of an object to be transported without disturbing the following stage by constituting a transport unit with two conveyers which are placed in series and linked with each other, and by placing an entrance roller of the trailing conveyer a little higher than an exit roller of the leading conveyer. CONSTITUTION:The unit consists of two conveyers which are placed in series and linked with each other, and an entrance roller 3' of a trailing conveyer 2 is placed a little higher than an exit roller 4 of a leading conveyer 1. In other words, when a slender board 6 is transported on a conveyer 1, one end A of the board 6 which has arrived earlier at the conveyer 2 cannot be transferred onto the conveyer 2, with the friction force of one or two ropes 5 due to a step between the two conveyers. It can be transferred on the conveyer 2 only after the late-arriving end B reaches the conveyer 2 and the front edge of the board 6 is adjusted to be parallel with a roller 3'. Accordingly, the transport direction of the board 6 is adjusted in advance so that no trouble occurs in the following stage, in which, for example, the board is automatically stored in a cassette.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for correcting the orientation of an object while it is being transported.

In general, a conveyor is used to convey an object from a desired position to another, and the direction of the object does not usually change during conveyance.

On the other hand, since the conveyor is incorporated into production equipment and performs various processing and processing on the conveyed objects on the conveyor, it is also necessary to change the conveyance speed of the conveyed objects during the conveyance of the conveyed objects in a specific process section. In this case, especially if one of the multiple conveyors is moved quickly, the conveyed object may tilt at the transition section where it transfers to the faster conveyor, or one side of the conveyed object may transfer first and the direction may change by nearly 90 degrees. It rotates and becomes unstable. For example, when the object to be transported is a long and thin substrate, ceramic or glass substrates (hereinafter simply referred to as substrates) used for thermal heads in particular tend to be longer in length and narrower in width. It has become. This is to save material costs and make the product more compact. When processing such a substrate with chemicals, it is desirable to transport the substrate with the narrower side in the transport direction in order to make the length of the processing chamber as short as possible. For this reason, stable conveyance at the transition portion of the conveyor becomes even more difficult, and if the object to be conveyed is transferred to the subsequent stroke while the direction of the conveyed object remains rotated, various problems will occur there. This is especially noticeable in automated equipment.

On the other hand, in order to correct the direction of the transported object, it is known to interpose a member that comes into contact with the transported object in the middle of the transport path, but in this case, some mechanical shock is applied to the transported object and the transport The disadvantage is that the route is long and complicated.

Therefore, the present invention has been devised to provide a new device that eliminates the above-mentioned disadvantages, and embodiments thereof will be described below with reference to the accompanying drawings.

What is shown in FIG. 1 is a conventional conveyor, which consists of a front-stage conveyor 1 and a rear-stage conveyor 2, and both conveyors 1 and 2 are arranged on the same horizontal plane. The conveyor 2 at the rear stage has a faster conveyance speed than the conveyor 1 at the front stage, and these conveyors 1.2 have entrance and exit rollers 3, 4, .
It is a rope-type conveyor in which a plurality of ropes 5 are stretched between 3' and 4' (see Fig. 2).

Therefore, the elongated substrate 6 that has been sent on the conveyor 1 at the front stage in the direction of the arrow is usually affected by the external force for chemical treatment (for example, the jetting force of the chemical) in the pre-processing process as shown in FIG. , this also occurs when the direction of the conveyor rotates. 0 If the transfer is made to the subsequent conveyor 2, which has a higher speed, in this state, the point A side, which arrived at the subsequent conveyor 2I first at the transition section 7, will move faster to the subsequent conveyor. 2, and since the point B side is still on the conveyor 1 in the previous stage, it will be transferred to the conveyor 2 in the latter stage while rotating more and more counterclockwise (in the Y direction). In this case, in the 9th example, the gap between the boards becomes clogged in the subsequent process, resulting in a rear-end collision between the boards.

Therefore, in the present invention, as shown in FIG. 3 (in this figure, the same parts or equivalent parts as in FIG. In this way, even if the side corresponding to point A in FIG. However, the friction force of one or two of the ropes 5 does not allow the rope to transfer to the subsequent conveyor 2, and the side corresponding to point B in FIG. 31 and the front side of the substrate 6 are aligned until they are parallel to each other, and then the substrate 6 is transferred to the subsequent conveyor 2. Therefore, the orientation of the substrate 6 in the conveying direction is corrected.
In the post-process, for example, when automatically stored in a cassette, no inconvenience occurs.

One specific example of good results tested by the inventor is given below.

Size and thickness of substrate 6: 30 x 300 mm t-1,
5mmmm Output roller 420mm Diameter of entrance roller 31 20mm Step difference 7'8mm (O-5 diameter 4.3'''-1 times) 2 The exit roller 4' is located on the same horizontal plane as the artificial roller 31. It can also be used when conveyors are connected in series.

In addition, in the above description, the case where the speed of the conveyor 1 is slower than the speed of the conveyor 2 was explained in detail, but it goes without saying that it can be applied to the reverse case and the case where the speeds are equal. This is especially effective in the case of

In summary, the present invention is a device for correcting the orientation of a conveyed object at a transition section, which is composed of two conveyors connected in series, and in which the entrance roller of the subsequent conveyor is arranged slightly higher than the exit roller of the preceding conveyor. , has the following effects.

■The conveyed object sent by the previous stage conveyor comes into contact with the latter stage conveyor, and the conveyance direction can be corrected and transferred before being transferred to the latter stage conveyor, so that no inconvenience occurs in the subsequent stage.

■Since there is no special intervening member to adjust and correct the conveyance direction, and the conveyor is simply brought into contact with the conveyor at the subsequent stage, the shock caused by the contact of the conveyed object is alleviated, and it does not complicate the mechanism in any way. ■Note that when the object to be conveyed is a thin piece, for example a board, the orientation of the conveyed object is already uneven on the previous stage conveyor due to warping of the thin piece itself, but this unevenness is corrected by the crossing section. can be easily corrected.

[Brief explanation of the drawing]

Fig. 1 is a side view of the conventional example, Fig. 2 is a plan view of the main part of Fig. 1, Fig. 3 is a side view of the first embodiment of the present invention, and Fig. 4 is a side view of the second embodiment. Show the diagram. 1... Conveyor at the front stage 2... Conveyor at the rear stage 4... Exit roller 31 at the front stage conveyor... Entrance roller 7 at the rear stage conveyor... Transition section 7'... Patent attorney representing the step difference Yoshihiko Okabe

Claims (2)

[Claims] (1) A device for correcting the orientation of conveyed objects, which consists of two conveyors connected in series, with the entrance roller of the latter conveyor being placed slightly higher than the exit roller of the preceding conveyor. (2) The apparatus for correcting the orientation of a conveyed object according to claim (1), in which the speed of the conveyor at a later stage is set to be higher than that of the conveyor at the front stage.