JP2018034923A - Tray type conveyance device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tray-type conveyance device with a simple configuration, which prevents interference between front and rear trays, while avoiding reduction of the number of trays that can be installed and deterioration in reliability of loading of the conveyed articles to the tray.SOLUTION: A tray-type conveyance device 10 comprises a plurality of trays 20 for placing conveyed articles W, a plurality of carriages 30 for swingably supporting the plurality of trays 20, a conveying path 40 including a curved region 41, and driving means for causing the plurality of carriages 30 to travel along the conveying path 40. Each tray 20 is configured so that the conveyed article W is loaded from a tray outer circumference side 22, and each tray placing surface 21 has a shape in which a corner portion is cut out between a tray front side edge 24 and a tray inner circumference side edge 23.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a tray-type transport device that transports transported articles placed on a tray along a transport path.

  Conventionally, as a tray-type transport device that transports a transported article placed on a tray along a transport path, as shown in FIG. 6, a plurality of trays 120 on which the transported article W is placed, and the tray 120 in the transport direction. A plurality of carriages 130 that are swingably supported around an axis along the axis, an annular conveyance path 140 that includes a curved area 141 and a straight area 142, and drive means that causes the carriage 130 to travel along the conveyance path 140. A tray-type transfer device 110 provided is known (see, for example, Patent Document 1). Each carriage 130 is connected to adjacent carriages 130 in the front-rear direction.

  In the tray type transport device 110, the tray 120 on which the transported article W is placed is tilted to either the tray outer peripheral side edge 122 or the tray inner peripheral side edge 123 at a desired position, so that the transported article from above the tray 120 is obtained. It is configured to discharge W.

JP 2002-29618 A

  In such a tray-type transfer device 110, it has been found that the following problems arise when trying to reduce the size of the transfer path 140 for the purpose of reducing the installation space of the device.

  That is, in the tray type transport apparatus 110, since the curved path 141 is included in the transport path 140, when the size of the transport path 140 is to be reduced, the radius of curvature of the curved area 141 is reduced. Then, the bending of the posture of the tray 120 traveling in the curved region 141 becomes large. As a result, when the interval between the front and rear trays 120 is small, the front and rear trays 120 in the transport direction interfere with each other.

  Therefore, as one proposal for avoiding such interference between the front and rear trays 120, it is conceivable to set a large interval between the front and rear trays 120. In this case, the number of trays 120 that can be installed on the transport path 140 is limited. In order to reduce, the conveyance efficiency of the conveyance article W will fall.

Further, as another proposal for avoiding interference between the front and rear trays 120, by reducing the size of each tray 120 in the transport direction, the distance between the front and rear trays 120 can be reduced while avoiding a reduction in the number of trays 120 that can be installed. It is also possible to increase the size.
However, in the tray-type transport device 110, the transported article W is thrown in the horizontal direction from the tray outer peripheral edge 122 (or the tray inner peripheral edge 123) with respect to the traveling tray 120. If the size of the tray outer peripheral side edge 122 (or the tray inner peripheral side edge 123) to be reduced is reduced, the certainty of loading the transported article W into the tray 120 is lowered.

  Therefore, the present invention is to solve these problems, with a simple configuration, while reducing the number of trays that can be installed and avoiding a decrease in the certainty of feeding articles to the tray, It is an object of the present invention to provide a tray type transport device that prevents tray interference.

  The present invention includes a plurality of trays on which transported articles are placed, a plurality of carriages that support the trays so as to be swingable about an axis along the transport direction, and a transport path that includes a curved region curved in a horizontal plane. A tray-type transport device including a drive unit that causes the carriage to travel along the transport path, wherein the tray is disposed on a tray mounting surface on which the transported article is mounted and on an outer peripheral side of the curve region. A tray outer periphery side edge, a tray inner periphery side edge disposed on the inner periphery side of the curved region, a tray front side edge disposed on the front side in the transport direction, and a rear side in the transport direction. A tray rear side edge, and the tray is configured so that a transported article is input from the tray outer peripheral side edge side, and the tray placement surface includes the tray front side edge and the tray inner peripheral side edge. Between the corners By having a shape lacking Ri it is intended to solve the above problems.

According to the first aspect of the present invention, the tray is configured so that the conveyed article is input from the outer peripheral edge side of the tray, and the tray placing surface is an angle between the front edge of the tray and the inner peripheral edge of the tray. By having a shape with a cut-out part, even with a simple configuration, even when the curvature radius of the curved area of the conveyance path is designed to be small, while avoiding a reduction in the number of trays that can be installed, Interference between the front and rear trays can be prevented.
Moreover, since it can avoid that the size of the outer periphery side edge of the tray into which the transported article is loaded becomes smaller in the transport direction, it is possible to suppress a decrease in the reliability of the transported article into the tray.

According to the invention of claim 2, the supported portion of the tray supported by the carriage is formed at a position biased to the corner portion side between the tray inner peripheral side edge and the tray rear side edge. Since the tray can be prevented from being tilted due to the weight of the transported article put in the tray, the transported article can be stably held on the tray placement surface.
According to the invention of claim 3, the tray is placed on the tray mounting surface so that the tray outer peripheral side edge is higher than the tray inner peripheral side edge in a normal state where the conveyed article is held on the tray mounting surface. Is supported in an inclined state with respect to the horizontal plane, it is possible to prevent the transported article from dropping from the outer peripheral side of the tray due to a centrifugal force or the like acting on the transported article during traveling in the curved region.
The invention according to claim 4 is configured to support the tray mounting surface in a horizontal state by providing an inclination adapter that is attached between the carriage body and the tray and tilts the tray mounting surface. In addition, since an ordinary carriage body can be used, the cost of the apparatus can be reduced.
According to the invention which concerns on Claim 5, the lip | rip part is formed in the tray inner peripheral side edge and tray back side edge, and is hold | maintained at the corner | angular part side between tray inner peripheral side edge and tray rear side edge It is possible to reliably prevent the conveyed transported article from dropping from the tray placement surface.
According to the invention which concerns on Claim 6, since the lip part is formed in the tray connection edge extended diagonally with respect to the tray front side edge and the tray inner peripheral side edge, the tray inner peripheral side is formed by the lip part. The conveyed article put into the tray can be guided toward the corner portion between the edge and the tray rear side edge.

1 is an overall schematic diagram showing a tray type transport apparatus according to an embodiment of the present invention as viewed from above. Explanatory drawing which expands and shows a part of conveyance path | route. The perspective view which shows a tray. Explanatory drawing which shows a carriage and a tray. Explanatory drawing which shows the mode at the time of the injection | throwing-in of the conveyance article with respect to a tray. Explanatory drawing which shows the conventional tray type conveying apparatus.

  Below, tray type conveyance device 10 concerning one embodiment of the present invention is explained based on a drawing.

  The tray type transfer device 10 transfers the transported articles W put in the tray 20 to the transport path 40 and then sorts them into a plurality of sorting baskets (not shown) installed in the discharge area, as shown in FIG. As described above, the plurality of trays 20 on which the transported article W is placed, the plurality of carriages 30 that support the tray 20 so as to be swingable, the transport path 40 that travels the carriage 30, and the carriage 30 along the transport path 40. Driving means (not shown) for running, a loading unit 50 for feeding the conveyed article W into the tray 20, a discharge unit 60 for discharging the conveyed article W from the tray 20, and a controller (not shown) for controlling the operation of each part of the apparatus ).

  Below, the structure of each part of the tray type conveying apparatus 10 is demonstrated based on drawing.

  As shown in FIGS. 1 to 3, the tray 20 includes a tray placement surface 21 on which the transported article W is placed, a tray outer peripheral side edge 22 disposed on the outer peripheral side of the curved region 41 of the transport path 40, and a curve. A tray inner peripheral side edge 23 disposed on the inner peripheral side of the region 41, a tray front side edge 24 disposed on the front side in the transport direction, and a tray rear side edge 25 disposed on the rear side in the transport direction. Have.

  Each of the edges 22 to 25 extends linearly, and as shown in FIG. 2, the tray outer peripheral edge 22 and the tray inner peripheral edge 23 are arranged in parallel to the transport direction, and the tray front side edge 24 and the tray rear side. The side edges 25 are arranged so as to be orthogonal to the transport direction.

  As shown in FIG. 3, the tray mounting surface 21 has a shape in which a corner between the tray front side edge 24 and the tray inner peripheral side edge 23 is cut out. A tray connection edge 26 that extends obliquely linearly with respect to the side edge 24 and the tray inner peripheral edge 23 and connects the tray front side edge 24 and the tray inner peripheral edge 23 is formed.

  As shown in FIG. 3, the tray inner peripheral edge 23, the tray front edge 24, the tray rear edge 25, and the tray connection edge 26 have lip portions 27 that protrude upward from the tray mounting surface 21. Is formed. Further, the lip portion 27 is not formed on the tray outer peripheral side edge 22, whereby the tray 20 is configured to input / discharge the conveyed article W from the tray outer peripheral side edge 22.

  The tray 20 (tray placement surface 21) has a supported portion 21a supported by the carriage 30, and this supported portion 21a is arranged in the tray from the center of the tray placement surface 21 as shown in FIG. It is formed at a position deviated toward the corner between the peripheral edge 23 and the tray rear edge 25.

  As shown in FIGS. 2 to 4, the tray 20 is supported so as to be swingable about an axis A extending in the horizontal direction along the transport direction, and the transport article W is placed on the tray placement surface 21. It is configured to take two states: a normal state that can be held (can be held) and a tilted state in which the transported article W can be discharged from the tray placement surface 21. Note that the axis A is disposed in a region between the tray outer peripheral side edge 22 and the tray inner peripheral side edge 23 when viewed from above.

In the normal state of the tray 20, as shown in FIG. 4, the tray mounting surface 21 is inclined with respect to the horizontal plane so that the tray outer peripheral side edge 22 is higher than the tray inner peripheral side edge 23.
In the tilted state of the tray 20, the tray mounting surface 21 is inclined with respect to the horizontal plane so that the tray outer peripheral edge 22 is lower than the tray inner peripheral edge 23.

The carriage 30 is configured to be able to travel along the transport path 40, and moves the tray 20 supported on the top of the carriage 30 along the transport path 40.
As shown in FIG. 4, the carriage 30 includes a carriage main body 31 that can travel along the conveyance path 40, and an inclination adapter 32 that is attached between the carriage main body 31 and the tray 20.

As shown in FIG. 4, the carriage body 31 is swingably supported by the traveling unit 31 a centered on a traveling unit 31 a configured to travel on the transporting path 40 and an axis A extending in the horizontal direction along the transporting direction. And a rocking portion 31b.
The carriage 30 (traveling unit 31a) is connected to the carriage 30 (traveling unit 31a) adjacent to the front and rear in the transport direction.
The inclination adapter 32 is detachably fixed between the traveling unit 31a and the tray 20, and in the normal state of the tray 20, the tray placement surface 21 is inclined with respect to the horizontal plane.

  The conveyance path 40 is composed of rails or the like that travel the carriage 30 and, as shown in FIG. 1, is circular from a plurality of curved areas 41 curved in a horizontal plane and a plurality of straight areas 42 extending linearly in the horizontal plane. Is formed.

  The driving means (not shown) drives a plurality of carriages 30 along the transport path 40. In the present embodiment, the drive means drives the carriage 30 from the primary coil of the linear motor installed along the transport path 40. It is configured to supply power.

The input unit 50 is installed in the input area, and as shown in FIG. 1, the input conveyor 51 that inputs the transported article W to the tray 20 that moves along the transfer path 40, and the tray 20 that passes in front of the input conveyor 51. And a tilt-return guide 52 for returning the posture from the tilted state to the normal state.
The tilt-return guide 52 pushes the tray outer peripheral side edge 22 side (directly the swinging portion 31b of the carriage body 31 or the tilt adapter 32) of the tray 20 traveling along the transport path 40 from below. It is fixed to the rail.

The discharge unit 60 is installed in a discharge area, and as shown in FIG. 1, a discharge guide 61 that guides the transported articles W discharged from the tray 20 moving along the transport path 40 to a sorting basket (not shown); It has a known tilting movement member 62 that changes the posture of the tray 20 passing in front of the discharge guide 61 from the normal state to the tilted state.
The tilting movement member 62 includes an operation member (not shown) configured to be movable up and down, and is on the side of the inner peripheral edge 23 of the tray 20 that travels on the conveyance path 40 (directly, the swinging portion of the carriage body 31). A plurality of 31b or the inclination adapter 32) are installed along the conveyance path 40 so as to push up from below by an operating member (not shown).

  Next, a method for sorting the transported articles W by the tray type transport apparatus 10 according to the present embodiment will be described with reference to FIG.

  First, as shown in FIG. 5A, the transported article W is loaded into the tray 20 that moves along the transport path 40 by the loading conveyor 51.

  At this time, as shown in FIG. 5A, the transported article W put into the tray 20 enters the tray placement surface 21 from the tray outer peripheral side edge 22 where the lip portion 27 is not formed, As shown in FIGS. 5 (b) and 5 (c), the corner portion side between the tray inner peripheral edge 23 and the tray rear side edge 25 due to the movement of 20 in the transport direction and the inclination of the tray mounting surface 21 with respect to the horizontal plane. And is held on the supported portion 21a formed near the corner.

  Note that when the transported article W is loaded into the tray 20 by the loading conveyor 51, the tray 20 is in a normal state by the tilt back guide 52.

  Next, the tray 20 holding the transported article W moves in the transport direction to the discharge area while maintaining the normal state.

  Next, when the tray 20 holding the transported article W is moved in front of a sorting basket (not shown) as a sorting destination (or in front of the transport direction), the tilting movement member 62 moves the tray inner peripheral edge 23 side. The tray 20 is tilted from the normal state, and the transported article W is discharged from the tray 20 (specifically, the transported article W is slid down from the tray placement surface 21).

  Next, the conveyed article W discharged from the tray 20 is guided by the discharge guide 61 and is put into a sorting basket (not shown) of the sorting destination.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited to the said embodiment, A various design change can be performed without deviating from this invention described in the claim. Is possible.

For example, in the above-described embodiment, it is described that the tray-type transport device is intended for sorting transported articles, but the specific use of the tray-type transport apparatus is not limited to sorting transported articles. Any material may be used as long as it conveys the material.
In the above-described embodiment, the tray has been configured to take two states, that is, a normal state in which the transported article can be held and a tilted state in which the transported article can be discharged to the outer peripheral side of the tray. In addition to the above two states, the tray is tilted so that the inner peripheral side of the tray is lowered, and the tray is transported so that the tray takes a second inclined state in which the transported articles can be discharged to the inner peripheral side of the tray. An apparatus may be configured.
In the embodiment described above, each edge portion of the tray has been described as extending linearly. However, the specific aspect of the tray is not limited to this, and for example, at least one or at least one of each edge portion. The part may be formed in a curved shape.
In the above-described embodiment, the tray outer peripheral side edge and the tray inner peripheral side edge are arranged in parallel to the transport direction, and the tray front side edge and the tray rear side edge are orthogonal to the transport direction. However, each of these edges may be arranged obliquely in the transport direction.
In the above-described embodiment, the description has been given on the assumption that the lip portion is formed on the inner peripheral edge of the tray, the front edge of the tray, the rear edge of the tray, and the tray connection edge. A formation position is not limited to the above, For example, you may form only in a tray inner peripheral side edge and a tray back side edge.
In the above-described embodiment, the lip portion is formed over the entire area of each edge portion, but the lip portion may be formed only in a partial region of each edge portion.
The specific mode of the input unit may be any as long as it can input the transported article to the tray, and the specific mode of the discharge unit is to discharge the transported article from the tray. Anything can be used as long as it can be applied.
Also, the specific mode of the driving means may be any as long as it allows a plurality of carriages to travel along the transport path.

DESCRIPTION OF SYMBOLS 10 ... Tray type conveying apparatus 20 ... Tray 21 ... Tray mounting surface 21a ... Supported part 22 ... Tray outer peripheral side edge 23 ... Tray inner peripheral side edge 24 ... Tray Front side edge 25 ... Tray rear side edge 26 ... Tray connection edge 27 ... Lip part 30 ... Carriage 31 ... Carriage body 31a ... Traveling part 31b ... Swing part 32 ··· Inclination adapter 40 ··· Conveyance path 41 ··· Curve region 42 ··· Straight region 50 · ··············································································· -Discharge guide 62 ... Tilt-moving member W ... Conveyed article A ... Shaft

Claims (6)

A plurality of trays on which transported articles are placed; a plurality of carriages that support the trays so as to be swingable about an axis along the transport direction; a transport path including a curved region curved in a horizontal plane; and the transport path A tray-type transport device including a driving unit that causes the carriage to travel along
The tray includes a tray placement surface on which the conveyed article is placed, a tray outer peripheral side edge disposed on the outer peripheral side of the curved region, and a tray inner peripheral side edge disposed on the inner peripheral side of the curved region. A tray front side edge disposed on the front side in the transport direction, and a tray rear side edge disposed on the rear side in the transport direction,
The tray is configured to be loaded with conveyed articles from the tray outer peripheral side,
The tray mounting surface has a shape in which a corner between the tray front side edge and the tray inner peripheral side edge is cut out. The tray has a supported portion supported by the carriage,
The tray-type transfer device according to claim 1, wherein the supported portion is formed at a position biased toward a corner between the inner peripheral edge of the tray and the rear edge of the tray.   In the normal state in which the tray holds the transported article on the tray mounting surface, the tray mounting surface is set to a horizontal plane so that the tray outer peripheral side edge is higher than the tray inner peripheral side edge. The tray-type transfer device according to claim 1 or 2, wherein the tray-type transfer device is supported in an inclined state.   The carriage includes a carriage body that can travel along the conveyance path, and an inclination adapter that is attached between the carriage body and the tray and inclines the tray mounting surface. The tray type conveying apparatus according to claim 3. The tray has a lip portion that projects upward from the tray placement surface,
The tray type conveying device according to any one of claims 1 to 4, wherein the lip portion is formed at least on an inner peripheral side edge of the tray and a rear side edge of the tray. The tray has a tray connection edge that extends obliquely with respect to the tray front side edge and the tray inner peripheral side edge and connects the tray front side edge and the tray inner peripheral side edge;
The tray type conveying device according to claim 5, wherein the lip portion is also formed on the tray connecting edge.

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