JP2017081741A - Stacking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stacking device in which plural articles can be stacked simultaneously for achieving quick stacking work.SOLUTION: There is provided a stacking device capable of stacking plural articles in a height direction, comprising: a hand device which is provided above the stacking position, can hold the plural articles and falling simultaneously the plural articles; and a supply device capable of supplying the plural articles in an adjacent state toward the hand device.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a stacking apparatus.

  For example, Patent Document 1 discloses a stacked structure forming method including stacking means for gripping and stacking box-shaped bodies (containers) loaded from a transport line. This stacking means has a holding device that holds the box-shaped body and moves up and down, and forms the stacked body by lowering and stacking the box-shaped body to the stacking position. Thereby, the stacking body without the shift | offset | difference of a box-shaped body and omission can be formed.

JP 2003-252435 A

  However, in the stacking means described in Patent Document 1, it is possible to stack the articles in a suitable posture when stacking the articles one by one, but there is no deviation of the plurality of articles at the same time. It is difficult to stack. In order to further increase the capacity of the stacking apparatus, it is necessary to stack a plurality of articles quickly.

  The present invention has been made in view of the above-described problems, and an object thereof is to speed up the stacking operation by stacking a plurality of articles at the same time in the stacking apparatus.

  In order to achieve the above object, a first invention is a stacking apparatus capable of stacking a plurality of articles in a height direction, and is arranged above a stacking position and can hold a plurality of the articles. A configuration is adopted in which a hand device capable of simultaneously dropping a plurality of held articles and a supply device capable of supplying the plurality of articles toward the hand device in an adjacent state is adopted.

  According to a second invention, in the first invention, the hand device includes a claw part that comes into contact with the bottom of the article from below, an arm when the claw part is fixed, and an arm driving unit that moves the arm. The structure of having is adopted.

  According to a third aspect, in the second aspect, the thickness of the claw is set to be equal to or less than a depth of a groove provided at the bottom of the article.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the supply device includes a contact portion that can contact the article from a side opposite to the hand device, and the contact portion. A configuration is adopted in which an actuator that is movable toward the hand device side is provided.

  According to a fifth aspect of the present invention based on the fourth aspect of the present invention, the supply device has a contact posture capable of contacting the article by movement by the actuator, and an avoidance posture in which the supply device does not interfere with the article even if moved by the actuator. A configuration is adopted in which a shaft support portion that pivotally supports the contact portion is provided so that the posture can be changed.

  In a sixth aspect based on the fifth aspect, the supply device includes a biasing unit that biases the abutting portion to the abutting posture.

  A seventh invention is a stacking apparatus capable of stacking a plurality of articles in the height direction, the plurality of articles being arranged above the stacking position and capable of holding and holding the plurality of articles. A configuration is adopted in which a hand device capable of dropping each of the above and a supply device capable of supplying each of the plurality of articles toward the hand device is employed.

  According to the present invention, the stacking apparatus can hold a plurality of articles and can simultaneously drop the articles, and a supply apparatus that can supply the plurality of articles toward the hand apparatus in an adjacent state. Is provided. For this reason, the article is supplied to the hand device by the supply device and is held by the hand device. Further, the plurality of articles held by the hand device are simultaneously dropped and stacked at a predetermined position. Therefore, it is possible to speed up the stacking work by stacking a plurality of articles at the same time.

It is the schematic of the continuous mounting equipment provided with the stacking apparatus which concerns on one Embodiment of this invention. 1 is an overall view of a stacked unit in an embodiment of the present invention. (A) is a top view of the part of the stacked unit including the transport device, and (b) is a side view of the part of the stacked unit including the transport device. It is a side view of a supply apparatus. It is the front view which looked at the hand apparatus from the conveyance direction of Oricon W. It is a top view of a lifting device.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view of a continuously mounted facility provided with a stacking device 31 (see FIG. 2) according to the present embodiment.
As shown in FIG. 1, the continuous mounting facility according to the present embodiment is a facility for continuously mounting a plurality of Oricons W (articles) on an empty cart D1 (equipment). This continuous mounting facility is a part of the shipping facility in the distribution warehouse, and a plurality of oricons W taken out from the automatic warehouse are mounted (stacked) on the empty cart D1 prepared in advance for each shipping destination.

  The Oricon W is a cubic (box-shaped) transport container on which products are mounted. A groove W1 (see FIG. 5) is provided at the end of the bottom surface, and the upper surface is engaged with the groove W1. A protrusion is provided. Thereby, when the ORICON W is stacked, the groove W1 on the bottom surface and the protrusion W2 (see FIG. 5) on the upper surface are engaged to prevent the stacked ORICON W from dropping. The empty cart D1 is a transport device in which four casters are provided on the lower surface of a rectangular cargo bed and a basket (frame body) is provided on the cargo bed to prevent the cargo from collapsing.

  Now, the continuous mounting facility according to the present embodiment automatically and continuously mounts such an Oricon W on the empty cart D1, but the article storage 1, the feeding device 2, the stacking unit 3, the pusher 4, the empty basket. A car storage 5, an actual car storage 6, and a control device 7 are provided.

  The article storage 1 is an article holding device that holds the Oricon W taken out from the automatic warehouse for a predetermined time. That is, the article storage 1 waits in a state where a predetermined number of oricons W are arranged in a row in the horizontal direction, and sequentially transfers a plurality of oricons W arranged in a row toward the feeding device 2 at a predetermined speed. The article storage 1 is arranged so that the Oricons W are adjacent to each other even when the Oricons W taken out from the automatic warehouse are supplied not at continuous intervals but at intervals.

  The feeding device 2 is provided adjacent to the article storage 1 in the horizontal direction, and is an article supply device that receives the Oricon W from the article storage 1 and supplies it to the stack unit 3. The feeding device 2 receives the Oricons W from the article storage 1 one by one, and when receiving a total of two Oricons W as shown in the figure, the two Oricons W arranged close to each other in the horizontal direction are converted into the stack unit 3. To supply sequentially.

  FIG. 2 is an overall view of the stacking unit 3. The stacking unit 3 is provided adjacent to the feeding device 2 in the horizontal direction, and forms a stacked body by stacking Oricon W by two rows. The stacking unit 3 includes a transport device 30, a stacking device 31, and a lifting device 32.

  3A is a top view of a portion of the stacked unit 3 that includes the transfer device 30, and FIG. 3B is a side view of the portion of the stacked unit 3 that includes the transfer device 30. The conveying device 30 includes a guide member 30a, a conveyor belt 30b, and a belt driving device 30c. As shown in FIG. 3A, the guide member 30a and the conveyor belt 30b are provided on both sides with a supply device 33 of a stacking device 31 described later as viewed from above.

  The guide member 30a is a long member provided outside the two conveyor belts 30b. The guide member 30a prevents the Oricon W on the conveyor belt 30b from moving left and right with respect to the traveling direction of the conveyor belt 30b. Is prevented from falling from the supply device 33. The conveyor belt 30b is a belt that conveys the Oricon W toward the hand device 34, and is driven by a belt driving device 30c. The belt driving device 30c is provided at an end portion of the conveying device 30 on the hand device 34 side, and includes a motor 30d that rotates the two conveyor belts 30b. Note that only one belt driving device 30c is provided for the two conveyor belts 30b. The power generated by the belt driving device 30c is distributed to each conveyor belt 30b by a power transmission mechanism such as a plurality of sprockets and a shaft connecting the sprockets.

The stacking device 31 includes a supply device 33 and a hand device 34.
As shown in FIG. 3, the supply device 33 is disposed between the two conveyor belts 30b. As shown in FIG. 2, the supply device 33 is disposed adjacent to the hand device 34 in the horizontal direction. FIG. 4 is a side view of the supply device 33. The supply device 33 includes a support portion 33a, a guide rail 33b, a movable block 33c, a contact portion 33d, a shaft support portion 33e, and an urging spring 33f. As shown in FIG. 3B, the support portion 33a is a member that supports the guide rail 33b from below. The guide rail 33b is a rail that guides the movable block 33c. The guide rail 33b is formed of a magnet. The movable block 33c is movably attached to the guide rail 33b and moves linearly along the guide rail 33b. Such guide rail 33b and movable block 33c are linear actuators. For example, the guide rail 33b and the movable block 33c constitute a linear actuator. In this case, a magnet is buried in the guide rail 33b, and a coil is installed in the movable block 33c.

  As shown in FIG. 3A, two contact portions 33d are installed so as to sandwich the movable block 33c when viewed from above. These contact portions 33d are supported so as to be rotatable with respect to the movable block 33c via a shaft support portion 33e, and a contact posture (a solid line in FIG. 4) and an avoidance posture (a virtual line in FIG. 4). The posture can be changed to the posture shown in FIG. As shown in FIG. 4, each contact portion 33 d has a front end portion (an end portion on the downstream side in the transport direction of the Oricon W) protruding upward and a rear end portion (the Oricon W of the Oricon W) in the contact posture. This is a member having an elongated shape along the transport direction of the Oricon W so that the upstream end in the transport direction abuts the movable block 33c.

  Such a contact portion 33d is disposed at a height where the tip portion interferes with the Oricon W in the contact posture. Further, in the case of the contact posture, the contact portion 33d is restricted from rotating in the direction of lifting the front end portion by the rear end portion contacting the movable block 33c. Further, the contact portion 33d is lowered to a height at which the tip portion does not interfere with the Oricon W in the avoidance posture. Further, the abutting portion 33d is urged by an urging spring 33f (urging means) so as to rise in a vertical direction with respect to the ground and to be in an abutting posture capable of abutting on the Oricon W. Such a contact portion 33d can push out the Oricon W located in front of the contact portion 33d in the advancing direction of the conveyor belt 30b in a contact posture. Further, when a force is applied from the rear side of the contact portion 33d in the traveling direction of the conveyor belt 30b, the contact portion 33d rotates clockwise in FIG. It becomes a substantially horizontal to the avoidance posture that can avoid the Oricon W. For this reason, the contact portion 33d can pass through the lower side without interfering with the rear Oricon W.

  In such a supply device 33, two continuous Oricon Ws are formed by moving the movable block 33 c toward the hand device 34 in a state where the abutting portion 33 d is in contact with the rear of the Oricon W on the conveyor belt 30 b. Is pushed out toward the hand device 34. As a result, the supply device 33 supplies two Oricons W simultaneously to the hand device 34. Further, when the supply device 33 moves the movable block 33c backward, the supply device 33 takes an avoidance posture by the contact portion 33d hitting the Oricon W, and passes under the Oricon W continuously conveyed by the conveying device 30. Return to the position behind.

  FIG. 5 is a front view of the hand device 34 as viewed from the transport direction of the Oricon W. As shown in FIG. 2, the hand device 34 is supported by, for example, a frame portion 32 a described later of the lifting device 32, is adjacent to the supply device 33, and is disposed above the lifting platform 32 c of the lifting device 32. As shown in FIG. 5, the hand device 34 includes a drive arm 34a, an interlocking arm 34b, a connecting pin 34c, an arm drive unit 34d, and a claw portion 34e.

  The drive arm 34a is a plate-like member having a length corresponding to two Oricons W in the depth direction in FIG. 5, and includes a connecting portion 34a1 protruding in the horizontal direction and a protruding portion 34a2 protruding upward in the vertical direction. Yes. The drive arm 34a is connected to the connecting portion 34b1 of the interlocking arm 34b at the connecting portion 34a1 by a connecting pin 34c. The drive arm 34a is connected to the arm drive unit 34d at the protrusion 34a2. The drive arm 34a is pivotally supported with respect to the frame portion 32a via a bearing 34f.

  The interlocking arm 34b is a plate-like member having a length corresponding to two Oricons W in the depth direction in FIG. 5, and is provided to face the drive arm 34a. The interlocking arm 34b has a connecting portion 34b1 protruding toward the drive arm 34a, and is connected to the connecting portion 34a1 by a connecting pin 34c. The interlocking arm 34b is pivotally supported with respect to the frame portion 32a via a bearing 34g. The connecting pin 34c rotatably connects the driving arm 34a and the interlocking arm 34b. When the driving arm 34a is driven by the connecting pin 34c, the interlocking arm 34b is driven in conjunction.

  The arm drive unit 34d is provided on the upper side of the interlocking arm 34b while being supported by the frame unit 32a. The arm drive portion 34d is connected to the protrusion 34a2 of the drive arm 34a, and by pulling the protrusion 34a2 of the drive arm 34a in the direction of the interlocking arm 34b, the distance between the drive arm 34a and the interlocking arm 34b is widened. It is an actuator that drives the drive arm 34a in the direction. The claw portion 34e is provided so as to protrude in the horizontal direction from the lower ends of the drive arm 34a and the interlocking arm 34b, and engages with the groove portion W1 of the Oricon W. In addition, the thickness dimension of this nail | claw part 34e is set to below the depth dimension of the groove part W1 of Oricon W.

  In such a hand device 34, when the arm drive unit 34d is not driven, the drive arm 34a and the interlocking arm 34b are stationary in a state substantially perpendicular to the ground as shown by the solid line in FIG. In the hand device 34, when the arm drive unit 34d is driven, the drive arm 34a rotates clockwise as shown by the phantom line in FIG. 5, and the interlocking arm 34b rotates counterclockwise in conjunction with this. . As a result, the hand device 34 holds the two Oricons W at the same time in a state where the groove W1 and the claw 34e on the bottom surface of the Oricon W are engaged, and further holds the two Oricons by driving the arm driving unit 34d. It is possible to drop W at the same time. Note that the hand device 34 is preferably arranged so that the height of the claw portion 34 e is positioned slightly below the transport surface of the Oricon W in the transport device 30. Thereby, it can prevent more reliably that the Oricon W supplied to the hand apparatus 34 from the conveying apparatus 30 (supply apparatus 33) interferes with the nail | claw part 34e.

  FIG. 6 is a top view of the lifting device 32. As shown in FIGS. 6 and 2, the lifting device 32 includes a frame portion 32a, a lifting drive portion 32b, a lifting platform 32c, an x-axis cylinder 32d, an x-axis stopper 32e, and a y-axis cylinder 32f. The elevating device 32 further includes a load sensor (not shown) that detects that the Oricon W is placed on the elevating platform 32c, and a center misalignment detection sensor that detects a deviation in the loading position of the Oricon W. The frame portion 32a is a structure assembled in a rectangular parallelepiped shape, and is a member that supports the elevating drive unit 32b, the elevating platform 32c, the x-axis cylinder 32d, the x-axis stopper 32e, and the y-axis cylinder 32f. The raising / lowering drive part 32b is provided in the upper part of the flame | frame part 32a, and raises / lowers the raising / lowering stand 32c by winding or unwinding the wire not shown connected to the raising / lowering stand 32c.

  As shown in FIG. 6, the lifting platform 32c is a fence-like member and is accommodated inside the frame portion 32a. Such a lift 32c is connected to a wire (not shown), and an Oricon W is loaded thereon. The x-axis cylinder 32d is provided in the frame portion 32a, and corrects a slight shift in the x-axis direction of the ORICON W loaded on the lifting platform 32c by pushing the side surface of the ORICON W from the x-axis direction. The x-axis stopper 32e is a plate member provided to face the x-axis cylinder 32d, and supports the Oricon W pushed by the x-axis cylinder 32d from the opposite side.

  The y-axis cylinder 32f is provided in the frame portion 32a, and a pressing plate 32g is attached to an end portion to be driven. The y-axis cylinder 32f can push the side surface of the Oricon W from the y-axis direction by the pressing plate 32g simultaneously contacting the side surfaces of the two Oricon Ws. As a result, the y-axis cylinder 32f corrects a slight shift in the y-axis direction of the Oricon W loaded on the lifting platform 32c. A y-axis cylinder (not shown) is provided at a position opposite to the driving direction of the y-axis cylinder 32f. A y-axis stopper can be used instead of the y-axis cylinder (not shown).

  In such a lifting device 32, the lifting platform 32 c is in a standby state below the hand device 34, and the load sensor is controlled under the control of the control device 7 on the basis of the detection result every time the Oricon W is stacked. The elevating platform 32c is lowered by the height of one Oricon W. Further, the elevating device 32 adjusts the position of the Oricon W by the x-axis cylinder 32d and the y-axis cylinder 32f based on the center shift detected by the center shift detection sensor. The stacked body composed of a plurality of Oricons W is moved from the stacked unit 3 to the front of the pusher 4 by the transport roller 35. The transport roller 35 is a roller conveyor provided from below the lifting device 32 toward the pusher 4.

  Returning to FIG. 1, the pusher 4 is a transfer device that is provided adjacent to the stack unit 3 in the horizontal direction and transfers a stack of oricon Ws to the empty cart D1. is there. In other words, the pusher 4 is formed by pressing the side of the stack of Oricon W, which is stacked in a plurality of stages in the horizontal direction and in the horizontal direction on the lifting platform, toward the empty cart D1. W is transferred from the lifting platform to the empty cart D1.

  The empty cart storage 5 is a cart holding device that holds an empty cart D1 loaded from one end (loading port) by an operator for a predetermined time. The empty cart storage 5 waits in a state where a predetermined number of empty carts D1 are arranged in a row in the horizontal direction, and a plurality of empty carts D1 arranged in the row are directed to the loading position P of the Oricon W. Transport. Note that the empty cart storage 5 is arranged so that the empty carts D1 are adjacent to each other even when an operator puts the empty cart D1 into the input port at intervals rather than continuously.

  The actual car storage 6 is a cart holding device that is continuous with the empty car storage 5 across the loading position P. The actual car storage 6 is made to stand by in a state where the car carts D (the actual car carts D2) loaded with the Oricon W at the loading position P are arranged in a line, and the end opposite to the loading position P Transfer to (takeout). In addition, this take-out port is a part where the worker (the take-out worker) takes out the real car cart D2 in the real car car storage 6.

  The control device 7 controls the above-described article storage 1, the feeding device 2, the stacking unit 3, the pusher 4, the empty car storage 5 and the real car storage 6 as appropriate, so that the continuously mounted equipment according to the present embodiment Is a control device that operates in a unified manner. The control device 7 executes, for example, a control program stored in advance in an internal storage device, thereby electrically connecting the article storage 1, the feeding device 2, and the stack unit 3 that are electrically connected via a predetermined interface circuit. , A software control device for controlling the pusher 4, the empty car storage 5 and the real car storage 6.

Next, the operation of the continuous mounting facility according to the present embodiment will be described with reference to FIG.
First, the outline of the mounting operation of the Oricon W in the continuous mounting facility will be described. The article storage 1, the feeding device 2, the stacking unit 3, the pusher 4, the empty cart storage 5 and the actual cart storage 6 When the operation instruction signal is input from 7, the operation is performed in a predetermined order in synchronization.

  That is, the article storage 1 arranges the oricons W supplied from the automatic warehouse in a line, and the feeding device 2 receives two oricons W from the article storage 1 and supplies them to the stacking unit 3. Each of the Oricon Ws is stacked in a plurality of stages, the empty cart storage 5 aligns the empty carts D1 in a line and supplies them to the loading position P, and the pusher 4 sends the Oricon W to the empty carts D1 at the loading position P. And the real car cart storage 6 transfers the real car cart D2 from the loading position P to the take-out port.

Next, the operation of the stacked product unit 3 according to this embodiment will be described.
First, in the stacking unit 3, the two Oricons W are conveyed in the adjacent state by the conveying device 30, and these Oricons are arranged on the downstream side of the contact portion 33 d of the supply device 33. Although the contact portion 33d is in the contact posture shown in FIG. 4, the contact portion 33d assumes an avoidance posture when the transport device 30 hits the Oricon W from the upstream side. For this reason, the Oricon W transported by the transport device 30 is transported to the downstream side of the contact portion 33d without being obstructed by the contact portion 33d.

  When the two Oricons W are arranged on the downstream side of the contact portion 33d, the movable block 33c on which the contact portion 33d is installed is moved along the guide rail 33b, and the contact portion 33d having the contact posture is used. The Oricon W is transported downstream with the adjacent state. As a result, the Oricon W leaves the transport device 30 and is supplied to the hand device 34. In the hand device 34, before the Oricon W is supplied, the driving arm 34a and the claw portion 34e installed on the interlocking arm 34b are close to each other so that the claw portion 34e installed on the driving arm 34a is close to the hand arm 34a. The posture of the interlocking arm 34b is set. The Oricon W supplied to the hand device 34 slides between the driving arm 34a and the interlocking arm 34b and is supported from below by the claw portion 34e. That is, in this embodiment, when the Oricon W is supplied to the hand device 34 by the abutting portion 33d, the driving arm 34a and the interlocking arm 34b of the hand device 34 are in a posture in which the respective claw portions 34e are close to each other. It is in a stationary state.

  Subsequently, when the driving arm 34a and the interlocking arm 34b are changed in posture by the arm driving part 34d so that the claw part 34e installed in the driving arm 34a and the claw part 34e installed in the interlocking arm 34b are separated from each other. The two Oricons W held by the hand device 34 simultaneously drop downward and are loaded on the lower elevator 32c or the Oricon W previously placed on the elevator 32c. Then, when the position of the oricon is adjusted by the x-axis cylinder 32d and the y-axis cylinder 32f and all the oricons W transferred to one basket carriage D are stacked, the lifting platform 32c It goes down through the gap between the rollers. Thereby, the Oricon W loaded on the lifting platform 32 c is transferred onto the transport roller 35. The Oricon W is moved to the front of the pusher 4 by the transport roller 35.

  Note that when the contact portion 33d supplies the Oricon W to the hand device 34, the next Oricon W is supplied to the transport device 30 before the contact portion 33d returns to the original position. Then, the contact portion 33d returns to the original position in a state where the next Oricon W is loaded on the transport device 30. At this time, the contact portion 33d comes into the avoidance posture when the contact portion 33d hits the next oricon W from the downstream side. For this reason, the contact portion 33d can be returned to the original position without being obstructed by the next Oricon W.

  According to such a stacking apparatus 31 according to the present embodiment, the supply device 33 that supplies the hand device 34 adjacent to the hand device 34 is provided. Further, the stacking device 31 includes a hand device 34 that can hold two oricons W at the same time and can further drop two of them on the lifting platform 32c. Thereby, the stacking apparatus 31 can stack two Oricons W simultaneously. Therefore, it is possible to speed up the stacking operation.

  Further, according to the stacking device 31, the hand device 34 includes the claw portion 34e that contacts the bottom surface of the Oricon W, the drive arm 34a, the interlocking arm 34b, and the arm drive portion 34d. Thereby, the hand apparatus 34 can hold | maintain the Oricon W stably. Therefore, the stacked ORICON W does not lose its balance, and the ORICON W can be quickly stacked.

  Further, the thickness dimension of the claw part 34e of the hand device 34 is set to be equal to or less than the depth of the groove part W1 formed on the bottom surface of the Oricon W. For this reason, it is possible to drop the held Oricon W in a state of being brought close to the lifting platform 32c. Therefore, the ORICON W stacked by dropping the ORICON W from above can be prevented from being out of balance.

  Moreover, according to the stacking apparatus 31, the supply apparatus 33 is provided with the contact part 33d, the guide rail 33b, and the movable block 33c. Therefore, as the movable block 33 c moves along the guide rail 33 b, the supply device 33 can be pushed out to the hand device 34 by the contact portion 33 d coming into contact with the Oricon W. Thereby, it is possible to reliably supply the Oricon W to the hand device 34 without separating the two Oricon Ws.

  Further, the contact portion 33d of the supply device 33 is pivotally supported so that the posture can be changed between a contact posture capable of contacting the Oricon W and an avoidance posture not interfering with the Oricon W. Thereby, the contact part 33d which pushed out the Oricon W can return to the original position quickly by passing through the Oricon W. Accordingly, the Oricon W can be quickly supplied to the hand device 34, and the Oricon W can be stacked quickly.

  Further, the contact portion 33d of the supply device 33 is urged so as to be in a contact posture by a biasing spring 33f, and is brought into an avoidance posture by being pressed from behind the contact portion 33d. Accordingly, the contact portion 33d can switch between the contact posture and the avoidance posture without using a drive device such as an actuator. Accordingly, the Oricon W can be supplied to the hand device 34 more quickly, and the Oricon W can be stacked quickly.

  As mentioned above, although preferred embodiment of this invention was described referring drawings, this invention is not limited to the said embodiment. Various shapes, combinations, and the like of the constituent members shown in the above-described embodiments are examples, and various modifications can be made based on design requirements and the like without departing from the spirit of the present invention.

  For example, in the above embodiment, the supply device 33 supplies the Oricon W to the hand device 34 by moving the contact portion 33d, but the present invention is not limited to this. The supply device 33 may supply the Oricon W to the hand device 34 by, for example, a belt conveyor.

  In the above embodiment, the groove portion W1 is formed on the bottom surface of the Oricon W and the claw portion 34e is in contact with the groove on the bottom surface, but the present invention is not limited to this. Even when the groove W1 is not formed on the bottom surface of the Oricon W, the claw portion 34e contacts the bottom surface of the Oricon W, so that the hand device 34 can hold the Oricon W.

  Moreover, in the said embodiment, although the contact part 33d of the supply apparatus 33 shall be urged | biased by the urging | biasing spring 33f so that it may become a contact attitude | position, this invention is not limited to this. The contact portion 33d may be switched between a contact posture and an avoidance posture by an actuator.

Moreover, in the said embodiment, although the contact part 33d of the supply apparatus 33 shall move with the guide rail 33b and the movable block 33c which are linear actuators, this invention is not limited to this. The contact portion 33d may be moved by an electric cylinder or the like.
Alternatively, the center of gravity of the contact portion 33d is configured to be biased to the rear side in the traveling direction with respect to the shaft support portion 33e, so that the avoidance posture is switched to the contact posture using the weight of the contact portion 33d. Also good.

  Moreover, in the said embodiment, the stacking apparatus 31 shall form a stacked body by stacking two horizontal-parallel Oricons W. However, the present invention is not limited to this, and it is possible to stack the ORICON W one by one. Alternatively, a stacked body may be formed by stacking three or more parallel-connected Oricons W.

DESCRIPTION OF SYMBOLS 1 Article storage 2 Feeding device 3 Stacking unit 30 Conveying device 30a Guide member 30b Conveyor belt 30c Belt drive device 30d Motor 31 Stacking device 32 Lifting device 32a Frame unit 32b Lifting drive unit 32c Lifting platform 32d X axis cylinder 32e X axis Stopper 32f y-axis cylinder 32g holding plate 33 supply device 33a support portion 33b guide rail 33c movable block 33d abutment portion 33e shaft support portion 33f urging spring 34 hand device 34a drive arm 34a1 connecting portion 34a2 protruding portion 34b interlocking arm 34b1 connecting portion 34c Connecting pin 34d Arm drive part 34e Claw part 34f Bearing 34g Bearing 35 Transport roller 4 Pusher 5 Empty car storage 6 Actual car storage 7 Controller D Car cart D1 Empty car cart D2 Actual car cart P Loading position W Oricon 1 groove W2 protrusion

Claims (7)

A stacking device capable of stacking a plurality of articles in the height direction,
A hand device arranged above the stacking position and capable of holding a plurality of the articles and capable of simultaneously dropping the plurality of held articles;
A stacking apparatus comprising: a supply device capable of supplying a plurality of the articles in an adjacent state toward the hand device. The hand device is
A claw portion that contacts the bottom of the article from below;
When the nail portion is fixed,
The stacking apparatus according to claim 1, further comprising: an arm driving unit that moves the arm.   The stacking apparatus according to claim 2, wherein a thickness dimension of the claw portion is set to be equal to or less than a depth dimension of a groove portion provided in a bottom portion of the article. The supply device includes:
An abutting portion capable of abutting on the article from the side opposite to the hand device;
The stacking device according to any one of claims 1 to 3, further comprising: an actuator capable of moving the contact portion toward the hand device.   The supply device pivotally supports the contact portion so that the posture can be changed between a contact posture capable of contacting the article by movement by the actuator and an avoidance posture that does not interfere with the article even if moved by the actuator. The stacking device according to claim 4, further comprising a shaft support portion.   6. The stacking apparatus according to claim 5, wherein the supply device includes a biasing unit that biases the abutting portion to the abutting posture. A stacking device capable of stacking a plurality of articles in the height direction,
A hand device that is disposed above the stacking position and is capable of holding the plurality of articles and capable of dropping each of the plurality of articles held;
A stacking device comprising: a supply device capable of supplying each of the plurality of articles toward the hand device.

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