JPH04345419A - Inversion device - Google Patents

Abstract

PURPOSE:To eliminate transfer failure due to interference between works by aligning the inclinations of oblique guide plates whose thickness are uniform over the whole length from one end to the other end of the position between the upper and lower conveyers, and installing them so that the inclination surfaces may face each other. CONSTITUTION:In a conveyer device where an inversion device 113 is assembled between a work conveyer 1 and a delivery conveyer 39, when a work is moved from the conveyer 1 to the inversion device 113, the direction of the inversion device 113 is set so that one edge where a distance between oblique guide panels 44, 44 installed in the side plates 14 and the slide plates 15 of the inversion device 113 respectively is larger may face the edge of the conveyer 1. With this constitution, a distance between the side plate 14 and the slide plate 15 is adjusted so that a distance B between edge plates of the guides 44, 44 which face the edge of the conveyer 1 may be larger than a distance A between the side plate 2 and the slide plate 3 of the conveyer 1, and a distance C between the other edge plates of the guides 44, 44 may be smaller than a distance between the side plate 27 and the slide plate 28 of the conveyer 39. At this time, B is larger than A, so it is possible to move a work from the conveyer 1 to the inversion device 113 without interference.

Description

[Detailed description of the invention]

[Object of the invention]

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reversing device incorporated into a conveyor device installed in a processing line or the like.

0003

[Prior Art] A conventional example of this type of conveyor device is shown in Fig. 3(a).
) and (b). Figure 3(a) is a front view, and Figure 3(a) is a front view.
b) is a top view. The conveyor device is work conveyor 1
A reversing device 13 is installed next to the reversing device 13, and an unloading conveyor 39 is installed next to the reversing device 13.

The work conveyor 1 has side plates 2 and 4 fixed to both ends of a pair of slide guides 12.
In between, the slide plate 3 is guided by a slide guide 12 and is movable while remaining parallel to the side plate 2. A screw nut 9 is fixed to the slide plate 3,
The width with respect to the side plate 2 is adjusted by rotation of a width adjustment motor 11 connected to one end of a screw 10 screwed therewith.

A conveyor 5 supported by a sprocket 6 is attached to the side plate 2 and the slide plate 3, and is driven by a drive motor 8 connected to one end of a drive shaft 7.

The reversing device 13 is a device for reversing a workpiece from front to back. Side plates 14 and 16 are fixed to both ends of a pair of slide guides 19, and a slide plate 15 is disposed between the side plates 14 and 16. 19, it is movable while remaining parallel to the side plate 14. A screw nut 21 is fixed to the slide plate 15, and the width with respect to the side plate 14 is adjusted by rotation of a width adjustment motor 25 connected to one end of the screw nut 20 screwed into the slide plate 15.

A conveyor 17 supported by a pulley 18 is attached to the side plate 14 and slide plate 15, and is driven via a drive pulley 26 by rotation of a drive motor 24 connected to one end of a drive shaft 23. This conveyor 17 is arranged such that conveyors having the same structure face each other vertically and maintain a gap for the workpieces to pass through. The assembly of the conveyor 17, slide plate 15, side plates 14, 16, etc. has its center of rotation centered around the reversing cylinder 2 attached to the support 40.
2 and rotated 180 degrees around the horizontal axis to flip it upside down.

The carry-out conveyor 39 has side plates 27 and 29 fixed to both ends of a pair of slide guides 34, and a slide plate 28 is guided by the pair of slide guides 34 between the side plates 27 and 29. It is possible to move parallel to 27. A screw nut 31 is fixed to the slide plate 28, and the width with respect to the side plate 27 is adjusted by rotation of a width adjustment motor 37 connected to one end of a screw nut 32 screwed into the slide plate 28.

A conveyor 30 supported by a pulley 33 is attached to the side plate 27 and the slide plate 28, and is driven via a drive pulley 38 by rotation of a drive motor 36 connected to one end of a drive shaft 35.

The operation of this conveyor device will be explained by taking as an example the operation of coating the front and back surfaces of a workpiece 41 (for example, a printed board) using the work conveyor 1.

First, a workpiece 41 is supplied to the work conveyor 1, stopped at a work position, and coated on the front side with a coating applicator (not shown). Next, the conveyor 5 of the work conveyor 1 and the conveyor 17 of the reversing device 13 are rotated to send the work 41 to the reversing device 13.

Next, the reversing cylinder 22 is rotated 180° to turn the back side of the workpiece 41 upward. Next, conveyor 5
and 17 are reversed to send the workpiece 41 from the reversing device 13 to the work conveyor 1. Next, the conveyor 5 of the work conveyor 1 is rotated in the normal direction to stop the work 41 at the work position, and the back surface of the work 41 is coated.

Next, the work conveyor 1, the reversing device 13, and the conveyors 5, 17, and 30 of the carry-out conveyor 39 are rotated to send out the workpiece 41. Now work 41
The work of coating the front and back sides of is completed.

[0014]

[Problems to be Solved by the Invention] In the above-mentioned conventional conveyor device, when the workpiece 41 is transferred between the work conveyor 1 and the reversing device 13 and between the reversing device 13 and the carry-out conveyor 39, the workpiece 41 is moved by the side plates 2, 14, 33 and the slide. Board 3, 15,
There was a problem in that the containers came into contact with each other and stopped, making it impossible to carry out a smooth transfer. Therefore, it is an object of the present invention to solve the problem of the inability to be transferred due to contact of workpieces.

[Configuration of the invention]

[0016]

[Means for Solving the Problems] The present invention provides a reversing device in which the thickness varies from one end to the other over the entire length of the portions of the side plates and slide plates facing the workpiece side edge movement paths, that is, the portions between the upper and lower conveyors. The present invention is characterized in that the oblique guide plates, which change with a uniform slope up to the end, are installed with the slopes aligned and the sloped surfaces facing each other.

[0017]

[Operation] In the conveyor device incorporating the reversing device of the present invention, when transferring a workpiece from the work conveyor to the reversing device,
Install the reversing device 18 so that the end of the reversing device with the larger distance between the pair of diagonal guide plates faces the end of the work conveyor.
Rotate 0°. At this time, the inter-plate distance B at the end of the oblique guide plate facing the end of the work conveyor is larger than the distance A between the side plate of the work conveyor and the slide plate, and the inter-plate distance at the other end of the oblique guide plate The distance between the side plate of the reversing device and the slide plate is adjusted so that C is smaller than the distance D between the side plate of the carry-out conveyor and the slide plate. As a result, since B>A as described above, the workpiece is transferred from the work conveyor to the reversing device without being caught.

Next, the reversing device is rotated 180° to face the back side of the workpiece upward. In this state, the other end of the oblique guide plate faces the end of the work conveyor. This results in
As mentioned above, since A=D>C, the workpiece is transferred from the reversing device to the work conveyor without being caught.

After transferring the workpiece, turn the reversing device 180°
Rotate. This will return to the original state above, so B>
A and C<D, and the workpiece whose back surface has been coated on the work conveyor is transferred from the work conveyor to the reversing device without being caught, and then from the reversing device to the carry-out conveyor.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in detail below based on embodiments shown in the drawings.

FIGS. 1(a) and 1(b) show a reversing device according to an embodiment of the present invention. FIG. 1(a) is a top view, and FIG. 1(b)
is a front view. In the reversing device 113, side plates 14 and 16 are fixed to both ends of a pair of slide guides 19, and between the side plates 14 and 16, a slide plate 15 slides via a slide bearing 45 fixed to the side plates 14 and 16. It is guided by a guide and can move while remaining parallel to the side plate 14. A screw nut 21 is fixed to the slide plate 15, and a screw 20 is screwed into the screw nut 21.
The width with respect to the side plate 14 is adjusted by rotation of a width adjustment motor 25 connected to one end of the width adjustment motor 25 .

A conveyor 17 supported by a pulley 18 is attached to the side plate 14 and slide plate 15, and is driven via a drive pulley 26 by rotation of a drive motor 24 connected to one end of a drive shaft 23. This conveyor 17 is arranged such that conveyors having the same structure face each other vertically and maintain a gap for the workpieces to pass through. Further, the conveyor 17 is provided with belt supports 42 and 43 for maintaining the horizontal level of the belt on which the work is placed. Furthermore, the side plate 14
In a portion of each slide plate 15 facing the workpiece side edge movement path, that is, a portion between the upper and lower conveyors 17, over the entire length of the side plate 14 and slide plate 15,
The diagonal guide plate 44 whose thickness changes at a uniform slope from one end to the other end has the same slope (in the illustrated state, the left end is the thinnest and the right end is the thickest) and the sloped surfaces are opposed to each other. installed. This conveyor 17, side plate 14,
16, slide plate 15, etc., the center of rotation of the assembly is held by a reversing cylinder 22 attached to a support 40, and the assembly is configured to rotate 180° around a horizontal axis and be turned upside down.

In the conveyor device in which the reversing device 113 of the embodiment of the present invention configured as described above is incorporated between the work conveyor 1 and the carry-out conveyor 39, when transferring the work from the work conveyor 1 to the reversing device 113, As shown in FIG. 2(a), the end with the larger distance between the oblique guide plates 44 and 44 attached to the side plate 14 and slide plate 15 of the reversing device 113 faces the end of the work conveyor 1. The orientation of the reversing device 113 is set as follows. At this time,
The distance B between the plates at the ends of the diagonal guides 44, 44 facing the ends of the work conveyor 1 is larger than the distance A between the side plate 2 and the slide plate 3 of the work conveyor 1, and the diagonal guide plates 44,
The distance between the side plate 14 and the slide plate 15 of the reversing device 113 is adjusted so that the distance C between the plates at the other end of the reversing device 113 is smaller than the distance D between the side plate 27 and the slide plate 28 of the carry-out conveyor 39. put. Note that the distance A between the side plate 2 and slide plate 3 of the work conveyor 1 and the side plate 27 of the carry-out conveyor 39
The distance D between the slide plate 28 and the slide plate 28 is set to be equal.

As a result, as shown in FIG. 2(a), B
>A, the workpiece is transferred from the work conveyor 1 to the reversing device 113 without being caught.

Next, the reversing device 113 is rotated 180° to turn the back side of the workpiece upward. In this state, the other end of the oblique guide plates 44, 44 faces the end of the work conveyor 1, and as shown in FIG. 2(b), since A=D>C, the workpiece is not caught. It is transferred from the reversing device 113 to the work conveyor 1 without any trouble.

After transferring the workpiece, turn the reversing device 113 to 1.
Rotate 80 degrees. This returns to the initial state shown in FIG. 2(a), so B>A and C<D, and the work whose back surface has been coated on the work conveyor 1 is transferred from the work conveyor 1 to the reversing device 113 without being caught.
Then, it is transferred from the reversing device 113 to the unloading conveyor 39.

As described above, the reversing device 11 according to one embodiment of the present invention
According to No. 3, by providing the oblique guides 44, 44, the distance between the side plate and the slide plate at the end of the conveyor on the side that receives the workpieces is equal to the distance between the side plate and the slide plate at the end of the conveyor on the side that sends out the workpieces. Since the distance between the two parts can always be larger than the distance between the two parts, the workpiece can be transferred smoothly without getting caught, and it is possible to eliminate the possibility of the workpiece being unable to be transferred due to contact.

[0028]

Effects of the Invention As described in detail above, according to the present invention, the side plate and the slide plate of the reversing device have a diagonal plate whose thickness changes with a uniform gradient at the portions facing the workpiece side edge moving path. By realizing a reversing device in which the guide plates are installed with their slopes aligned and the slope surfaces facing each other, a conveyor device incorporating this reversing device between the work conveyor and the carry-out conveyor can easily move the workpieces. The distance between the side plate and the slide plate at the end of the conveyor on the receiving side is always larger than the distance between the side plate and the slide plate at the end of the conveyor on the side that sends out the work, so that the work does not get caught. Transfer is carried out smoothly, eliminating the possibility of transfer failure due to workpiece contact.

[Brief explanation of drawings]

FIG. 1 shows a reversing device according to an embodiment of the present invention, and FIG. 1(a)
is a top view, and FIG. 1(b) is a front view.

FIG. 2 is a diagram for explaining the operation of the reversing device in FIG. 1, where FIG. 2(a) is a top view showing the state when transferring a workpiece in the direction of the arrow, and FIG. 2(b) is a reversing FIG. 3 is a top view showing a state when a workpiece is transferred from the device in the direction of the arrow.

FIG. 3 shows a conventional conveyor device, with FIG. 3(a) being a front view and FIG. 3(b) being a top view.

[Explanation of symbols]

1...Work conveyor 14...Side plate 15...Slide plate 16...Side plate 17...Conveyor 19...Slide guide 20...Screw 21...Screw nut 22...Reversing cylinder 23...Drive shaft 24...Drive motor 25...Width adjustment motor 26...Drive pulley 44…Diagonal guide plate 113...Reversing device

Claims (1)

[Claims] Claim 1: The workpiece is placed between the conveyors, which are installed between the work conveyor and the carry-out conveyor, and which are arranged vertically opposite each other on the side plates and slide plates to support both side edges of the workpiece. In the reversing device that rotates the workpiece by 180 degrees to enable the work conveyor to work on the front and back sides of the workpiece, the side plate and the slide plate are rotated over the entire length of the portion facing the side edge movement path of the workpiece. A reversing device characterized in that a diagonal guide plate whose thickness changes at a uniform slope from one end to the other is mounted with the slopes aligned and the sloped surfaces facing each other.