JPH057281B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a conveyor device capable of circularly conveying articles using a single endless conveyor belt.

[Prior art]

In conventional conveyor devices that use a single endless conveyor belt, tapered rollers for reversal are installed at each point where the direction is changed, and the endless conveyor belt is wound around these tapered rollers. Therefore, the endless belt for conveyance was moved in a circular manner (Utility Model Application No. 49-52278).

However, in this conveyor device, since the surface of the reversing roller was tapered, it was difficult to adjust the tension of the belt.

As a means to overcome this drawback, there is a technique in which the endless belt for conveyance is folded back in a horizontal state to change its direction (Utility Model Application No. 4378/1983).

[Problems with conventional technology]

However, in such a horizontal folding means, since a roller means is used as the folding part, a groove is formed in the folding part on the belt, and as a result, it is difficult for the conveyed object to fall into this groove and change direction. This was an inconvenience.

[Means for Solving the Problems] This invention has been made to solve the above-mentioned problems, and has the following configuration: At least three or more direction changing units are installed on the frame at predetermined intervals; A conveying endless belt is stretched around these direction changing units, and the direction changing unit includes a reversing roller pivotally supported on a frame and a folding member installed on the frame, and the reversing roller is in a horizontal state. and is substantially perpendicular to the traveling direction of the conveying belt, and the folding member is disposed in front of the reversing roller in the signal direction of the endless conveying belt, and the folding edge of the folding member In the conveyor device, the folding member is arranged in a direction diagonal to the traveling direction of the endless conveying belt while facing the traveling direction of the endless conveying belt, and the folding member includes a folding plate and a support plate that are arranged in parallel with each other with a space between them. and the folding member is installed so as to be able to swing in the horizontal direction with one longitudinal end thereof as a fulcrum, and the endless conveying belt is connected to the support plate from the upper surface of the support plate of the folding member. After entering between the folding plate and passing below the folding plate, the folding plate is reversed in the direction of the folding plate by being wound around the reversing roller from below, and then the folding plate is folded from below the folding plate. This conveyor device is characterized by being folded upward along the edge and extended toward the next unit.

[Action of the invention]

Since the conveyor device according to the present invention is configured as described above, that is, since the folding member is arranged in parallel with the folding plate and the support plate with a space between them, there is no groove in the folding part on the belt. It is difficult to form.

Furthermore, in the conveyor device according to the present invention, since the folding member is installed so as to be able to swing in the horizontal direction using one end in the longitudinal direction as a fulcrum, the folding angle of the endless belt can be adjusted freely. Can be adjusted.

[Description of Embodiments] Embodiments of the present invention will be described below based on FIGS. 1 to 10.

In FIG. 1, U, U, . . . are direction changing units of the conveyor device C, and 11 is a series of endless conveyor belts that are stretched around the units U, U, .

The direction change unit will be explained based on FIGS. 2 to 7.

In Figures 2 and 3, reference numerals 13 and 13 are mounting brackets, and screws 15 and 15 are attached to the frame F.
It's stopped. This mounting bracket 13, 13
supports a reversing roller 21, which will be described later, and has elongated holes 17, 17 extending in the horizontal direction. Reference numeral 19 denotes a support shaft, which extends over the elongated holes 17, 17 of the mounting brackets 13, 13. This support shaft 19
passes loosely through the reversing roller 21, and this reversing roller 21
is rotatably supported. Reference numeral 19a denotes a horizontal surface, which is formed on the upper and lower surfaces of both ends of the support shaft 19. The support shaft 19 has horizontal surfaces 19a, 19a in contact with the upper and lower edges of the elongated holes 17, 17, and the elongated holes 17, 1
7, it is in a state where it cannot rotate. 2
3 and 23 are adjustment bolts, and the mounting bracket 1
It is loosely penetrated through the vertical pieces 13a, 13a of No. 3 and 13. Male threaded portion 23 of these adjustment bolts 23, 23
a and 23a are screwed onto the end of the support shaft 19.
Therefore, by screwing the adjustment bolts 23, 23, the support shaft 19 can move back and forth in the elongated hole 17 in the horizontal direction.

Next, the folding member M in this invention will be explained with reference to FIGS. 2 to 7.

In the figure, reference numeral 31 denotes a swing bracket, which is swingably supported on the frame F via a shaft pin 33 (see FIG. 5). On the other hand, 35 is an adjustment bracket, which is installed on the frame F via bolts 37. Since the bolt hole 39 in this adjustment bracket 35 is a long hole, the adjustment bracket 3
5 can be displaced by loosening the bolt 37. 41
is a guide plate, which is stretched between the swing bracket 31 and the adjustment bracket 35 (see FIGS. 4, 6, and 7). This guide plate 41 is arranged on the reversing roller 21 side of these brackets 31 and 35, and guides the endless belt 11 toward the reversing roller 21 (see FIG. 7).
Reference numeral 43 denotes an auxiliary plate, which is attached to the opposite side of the reversing roller 2 of the swing bracket 31 and the adjustment bracket 35.
1 (see Figures 4 and 6). These auxiliary plates 43, 43 are interposed plates 47, 47, which will be described later.
We are trying to stabilize the situation. Reference numeral 45 denotes a folding plate, which connects the guide plate 4 via intervening plates 47, 47.
1 (see FIGS. 2 and 4 to 7). This folding plate 45 is the reversing roller 2
This is for folding back the endless belt 11 that has been reversed by the belt 1. Reference numeral 49 denotes a support plate, which connects the intervening plate 4 with a gap S between it and the folded plate 45.
It is suspended horizontally at 7,47. This support plate 49 prevents the endless belt 11 from moving downward.
In addition, the guide plate 41, the auxiliary plate 43, the folding plate 4
5. The support plate 49 is fixed to the swing bracket 31 and the adjustment bracket 35 by pins 51, 51, . . . (see FIGS. 2 and 6), and constitutes the folding member M of the present invention. Therefore, this folding member M can swing relative to the shaft pin 33, and as a result, can swing in response to the displacement of the adjustment bracket 35.

In this direction change unit U, the endless belt 11 passes over the support plate 49 and then passes through the gap S to reach the lower side of the guide plate 41, as shown in FIG. After that, it is wound around the reversing roller 21 from below and reversed, and the guide plate 41 and the folding plate 45
between. Thereafter, it is folded back by the folding edge 45a of the folding plate 45, becomes horizontal, and heads toward the next direction changing unit U.

Next, a direction changing unit with a driving source will be explained based on FIGS. 8 to 10.

In the figure, reference numeral 61 denotes a driving roller, which is supported by a shaft 63 on mounting brackets 13, 13. This driving roller 61 is in pressure contact with the reversing roller 21 and transmits its rotational force. Further, in FIG. 9, D is an electric motor, which is fixed to the lower part of the frame F. 65 is a chain, which is stretched between the sprocket 67 of the electric motor D and the sprocket 69 of the driving roller 61. Therefore, the driving roller 61 rotates as the electric motor D rotates. Note that 71 is a chain tension adjustment device, which is pivotably supported on the mounting bracket 13.

The support shaft 19 of the reversing roller 21 is biased toward the driving roller 61 by compression springs 73 , 73 . This point is different from the support shaft 19 of the unit U (a unit without a driving source).

In this device, when the prime mover D is driven, the driving roller 61 rotates, causing the reversing roller 21 (of the unit U with the driving source D) to rotate. Then, the endless belt 11 moves to the other reversing rollers 21, 2.
1. Start moving while rotating... The article conveyed by the movement of the endless belt 11 temporarily stops at the position of the gap S of the folding member M. Then, it rides on the inverted endless belt 11 moving on the folding plate 45 and is conveyed in the direction of the next unit U. In this way, the articles are conveyed in a circular manner while being changed in direction.

〔Effect of the invention〕

The conveyor device according to the present invention includes the following steps: at least three or more direction change units are installed on a frame at predetermined intervals, one endless conveyance belt is stretched around these direction change units, and the direction change unit includes a reversing roller pivotally supported on a frame and a folding member installed on the frame, the reversing roller being in a horizontal state and substantially perpendicular to the traveling direction of the conveying belt, and The folding member is disposed in front of the reversing roller in the traveling direction of the endless conveying belt, and the folding edge of the folding member faces the traveling direction of the endless conveying belt and is arranged obliquely to the traveling direction. In the conveyor device arranged in the direction, the folding member is composed of a folding plate and a support plate that are arranged in parallel with a space between them, and the folding member is horizontally arranged with one longitudinal end thereof as a fulcrum. The conveying endless belt is installed to be able to swing in the direction, and after the endless conveying belt enters between the support plate and the folding plate from the upper surface of the support plate of the folding member and passes below the folding plate, The folding member is reversed in the direction of the folding plate by being wound around a reversing roller from below, and then folded upward from below the folding plate along the folding edge to extend toward the next unit. Since the folding plate and the supporting plate are arranged side by side with a space between them, grooves are not likely to be formed on the folded part on the belt, and therefore even small objects can be smoothly and easily changed direction. .

Furthermore, in the conveyor device according to the present invention, since the folding member is installed so as to be able to swing in the horizontal direction using one end in the longitudinal direction as a fulcrum, the folding angle of the endless belt can be adjusted freely. As a result of being adjustable, it is easy to adjust the deviation and tension of the belt in the width direction.

[Brief explanation of drawings]

1 to 10 show an embodiment of the conveyor device according to the present invention, in which FIG. 1 is a plan view, FIG. 2 is an enlarged view of a portion of FIG. 1, and FIG.
The figure is a view taken along the arrow in FIG. 2, FIG. 4 is an enlarged sectional view taken along the - line in FIG. 2, FIG. 5 is an enlarged sectional view taken along the - line in FIG. Figure 7 is a cross-sectional view taken along the - line in Figure 2, Figure 8 is a plan view of the direction changing unit with a drive source, Figure 9 is a view taken in the direction of the arrow in Figure 8, and Figure 10 is a view taken in Figure 8. It is a view taken along the X arrow in the figure, C... Conveyor device, F... Frame,
M...Folding member, U...Direction changing unit,
DESCRIPTION OF SYMBOLS 11... Endless belt for conveyance, 21... Reversing roller, 45... Folding plate, 45a... Folding edge, 49... Support plate.

Claims (1)

[Scope of Claims] At least three or more direction change units are installed on one frame at predetermined intervals, and one endless belt for conveyance is stretched around these direction change units, and the direction change unit is connected to the frame. a reversing roller pivotally supported by the frame, and a folding member installed on the frame, the reversing roller being in a horizontal state and substantially perpendicular to the traveling direction of the conveying belt, and the folding member is disposed in front of the reversing roller in the traveling direction of the endless conveying belt, and is arranged in a diagonal direction with respect to the traveling direction with the folded edge of the folding member facing the traveling direction of the endless conveying belt. In the transport conveyor device, the folding member is composed of a folding plate and a support plate that are arranged in parallel with a gap in between, and the folding member is configured to horizontally swing with one longitudinal end of the folding member as a fulcrum. The conveying endless belt enters between the supporting plate and the folding plate from the upper surface of the support plate of the folding member, passes under the folding plate, and then passes onto the reversing roller. A conveyor device for conveyance characterized in that it is reversed in the direction of the folding plate by wrapping it from below, and then folded upward from below the folding plate along the folding edge and extending in the direction of the next unit. .