JP2011207555A - Cargo carrying tool supply-discharge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cargo carrying tool supply-discharge device capable of improving a degree of freedom of installing a cargo carrying tool delivery device, while performing supply and discharge in a linear flow without changing the direction of a cargo carrying tool, by directly stacking without fixing the cargo carrying tool such as a cart to a pallet.SOLUTION: This cargo carrying tool supply-discharge device includes a cart supply conveyor 1 for supplying an empty cargo cart 7, a cart discharge conveyor 2 for discharging an actual cargo cart 7 loaded with an article A in the same direction as the supply direction from a tail end position of the cart supply conveyor 1, a lifter 5 for lifting the cart 7 between a position between the cart supply conveyor 1 and the cart discharge conveyor 2, and a stacking height position above that position, and a traverser 6 for transferring the empty cargo cart 7 on the cart supply conveyor 1 to the lifter 5 and transferring the actual cargo cart 7 on the lifter 5 to the cart discharge conveyor 2.

Description

  The present invention relates to a load carrier supply / discharge device for continuously supplying an empty load carrier to an article loading position and discharging an actual load carrier loaded with articles.

  A conventional palletizer is disclosed in Patent Document 1. According to this technique, a lifter is installed below the terminal end of the conveyor, and a back plate for aligning articles stacked at a position opposite to the conveyor of the lifter is provided so as to freely advance and retract. When an article is loaded on a cart, the cart is temporarily fixed on a pallet and then placed on a lifter, and the articles thrown from the conveyor are loaded on the cart while moving the lifter back and forth.

  By the way, in the said technique, the operation | work which fixes a cart to a pallet is a manual operation, and the effort was required. In addition, since the lifter is located in front of the end of the conveyor, the cart cannot be placed on the palletizer unless the cart is turned in the layout of the equipment, and the supply and discharge of the cart is inefficient. It was. Furthermore, since the lifter has a structure that receives the entire bottom surface of the pallet, the lifter is likely to become an obstacle when installing a load carrier delivery device such as a traverser that delivers a cart to the lifter, and there is a restriction on the installation of the load carrier delivery device. .

JP 2004-299846 A

  The problem to be solved by the present invention is to solve these conventional problems, to allow a load carrier such as a cart to be directly stacked without being fixed to a pallet, and without changing the direction of the load carrier. An object of the present invention is to provide a load carrier supply / discharge device that can supply and discharge in a linear flow and can further improve the degree of freedom of installation of the load carrier delivery device.

The configuration of the present invention that solves this problem is as follows.
1) A load carrier supply / discharge device for continuously supplying an empty load carrier to an article loading position and discharging an actual load carrier on which an article is loaded. A load carrier supply conveyor for supplying the load carrier, a load carrier discharge conveyor for discharging the actual load carrier from the terminal position of the load carrier supply conveyor in the same direction as the supply direction, and the load carrier supply conveyor The lifter that raises and lowers the load carrier between the position between the load carrier discharge conveyor and the article stacking height position above it, and the empty load carrier on the load carrier supply conveyor are transferred to the lifter And a traverser that transfers the actual load carrier on the lifter to the load carrier discharge conveyor, and when the empty load carrier is transferred from the traverser, the empty load carrier is Lift up to the stacking height. Lifter control means for lowering the load carrier to the lowest position, and when the load carrier supply conveyor supplies an empty load carrier with the lifter in the lowest position, the lifter removes the empty load carrier. And a traverser control means for transferring the actual load carrier to the load carrier discharge conveyor when the lifter lowers the actual load carrier to the lowest position. Transporter supply / discharge device 2) The traverser has a rear receiving device that can be loaded with an empty load carrying device and a front receiving device that can be loaded with an actual load carrying device. On the lifter, the rear receiving device is lifted at the standby position where the rear receiving device is arranged near the load carrying device supply conveyor, lifts the empty load carrying device on the load carrying device supply conveyor on the rear receiving device and descends. Use the actual load carrier as the front side When the lifter lifts an empty load carrier, the lifter lowers and lowers the actual load carrier onto the load carrier discharge conveyor and moves back to the standby position. ) Article loading equipment 3) The lifter is installed opposite to the left and right positions between the load carrier supply conveyor and the load carrier discharge conveyor, and the left and right ends of the load carrier are hooked up and down in conjunction with each other. In the article loading facility according to 1) or 2) described above.

  According to the configuration described in 1) of the present invention, the load carrier supplied by the load carrier supply conveyor is lifted as it is by the lifter to the article stacking height position, so the load carrier is fixed to the pallet. Work can be omitted. In addition, since the flow of the load carrying device becomes linear, there is no need to change the direction when the load carrying device is transferred, and the ability to supply and discharge the load carrying device is improved.

  According to the configuration described in 2) of the present invention, since the traverser has a structure in which the load carrier can be mounted back and forth, the transfer of the empty load carrier and the actual load carrier can be performed in one reciprocating motion. It is efficient and further improves the capacity to supply and discharge the load carrier.

  According to the configuration described in 3) of the present invention, since the lifter is installed opposite to the left and right positions of the flow of the load carrier, the load carrier delivery device is placed in the space formed at the center of the load carrier. Can be installed without interfering with, and the degree of freedom of installation of the load carrier delivery device is improved.

It is a side view of the load carrier supply / discharge device of the embodiment. It is a top view of the traverser of an Example. It is a side view of the traverser of an Example. It is a side view of the goods transfer apparatus of an Example. It is a front view of the lifter of an Example. It is explanatory drawing which shows the transfer of the cart of an Example. It is explanatory drawing which shows the transfer of the cart of an Example. It is explanatory drawing which shows stacking | stacking of the articles | goods of an Example.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be specifically described based on examples and drawings.

  FIG. 1 is a side view of the load carrier supply / discharge device of the embodiment, FIG. 2 is a plan view of the traverser of the embodiment, FIG. 3 is a side view of the traverser of the embodiment, and FIG. 5 is a front view of the lifter of the embodiment, FIGS. 6 and 7 are explanatory views showing transfer of the cart of the embodiment, and FIG. 8 is an explanatory view showing stacking of articles of the embodiment.

  In the figure, 1 is a cart supply conveyor (load transporter supply conveyor), 2 is a cart discharge conveyor (load transporter discharge conveyor), 3 is an article transfer conveyor, 4 is an article transfer device, 4a is a width adjusting device, 4b is Transfer plate, 4c is a pressing plate, 4d is a vibration device, 5 is a lifter, 5a is a mast, 5b is a receiving member, 5c is a motor, 6 is a traverser, 6a is a rail, 6b is a motor, 6c is a moving base, 6d Is a lifting platform, 6e is a front receptacle, 6f is a rear receptacle, 6g is a wheel receptacle, 7 is a cart (load carrier), and A is an article.

  As shown in FIG. 1, the article loading facility of the present embodiment is configured such that the cart supply conveyor 1 and the cart discharge conveyor 2 are connected in series so that the conveyance direction is continuous, and the article is conveyed to a high place directly above the cart supply conveyor 1. The conveyor 3 is installed in parallel with the supply direction of the cart supply conveyor 1, the article transfer device 4 is installed at the transfer destination position of the article transfer conveyor 3, and the left and right positions between the cart supply conveyor 1 and the cart discharge conveyor 2 The lifter 5 is installed opposite to each other, and the traverser 6 is installed between the left and right lifters 5.

  As shown in FIGS. 2 and 5, the cart supply conveyor 1 has a structure in which left and right wheels of the cart 7 are installed on the left and right sides so that a space is formed therebetween. The cart discharge conveyor 2 has the same structure as the cart supply conveyor 1. The cart supply conveyor 1 stops during normal times, operates when detecting the entry of the cart 7 to the start end position, and is controlled to continuously feed the cart 7 to the end position and stop. The cart discharge conveyor 2 is controlled to stop when it is normal, and to operate when it detects the entry of the cart 7 to the start position, and to stop when it detects the discharge of the cart 7 from the end position.

  As shown in FIG. 4, the article transfer device 4 presses the article A on the article conveyance conveyor 3 from the left and right to bring it to a width that can be stacked on the cart 7, and the article transfer apparatus 4 on the article conveyance conveyor 3. A transfer plate 4b on which the article A is placed and advanced to the cart 7 and then retreats; and a holding plate 4c for holding the article A on the transfer plate 4b behind and transferring the article A to the cart 7 when the transfer plate 4b is retracted. The vibration device 4d that vibrates the upper surface of the article A loaded on the cart 7. When it is detected that the cart 7 has entered the loading position, the article conveying conveyor 3 is activated. When the article A is detected to enter the position of the width adjusting device 4a, the width adjusting device 4a advances and retreats to convey the item. When the transfer of the article A from the conveyor 3 to the transfer plate 4b is detected, the transfer plate 4b and the holding plate 4c move forward, and when the transfer plate 4b reaches the cart 7, the holding plate 4c is temporarily stopped and transferred. When the plate 4b is retracted first, and then the pressing plate 4c is retracted, and the pressing to the vibration device 4d is detected, the vibration device 4d vibrates for several seconds. When the loading of a predetermined number of articles A on the cart 7 is detected, the article conveying conveyor 3 is controlled to stop.

  As shown in FIGS. 2, 4 and 5, the lifter 5 includes a mast 5a having a height up to the loading position of the article transfer device 4, a receiver 5b for hooking the cart 7 from below, and a receiver 5b. And a motor 5c that moves up and down along the mast 5a, and the lifter 5 is placed facing the support 5b with an interval at which the left and right ends of the cart 7 can be hooked. During normal times, the left and right supporters 5b stop at the lowest position, and when the entry of the cart 7 to the position between the cart supply conveyor 1 and the cart discharge conveyor 2 is detected, the left and right supporters 5b rise to transfer articles. When the lifting of the cart 7 up to the loading position of the device 4 is detected, the left and right receiving tools 5b are stopped, and every time a loading of the article A on the cart 7 is detected, the left and right receiving tools 5b are slightly raised and a few seconds elapse. Later, it is lowered by one step and stopped, and when it is detected that a predetermined number of articles A have been stacked on the cart 7, the left and right receiving tools 5b are controlled to descend to the lowest position and stop.

  As shown in FIGS. 2 and 3, the traverser 6 is provided with a rail 6a between a space at the end position of the cart supply conveyor 1 and a space at the start position of the cart discharge conveyor 2, and a motor 6b is provided on the rail 6a. A traveling base 6c that travels is disposed, and a lifting platform 6d is mounted on the traveling base 6c, and a front receiving tool 6e, a rear receiving tool 6f, and a wheel receiving 6g are mounted on the lifting platform 6d. The moving base 6 c moves so that the front receiving tool 6 e can move between the position between the cart supply conveyor 1 and the cart discharge conveyor 2 and the start end position of the cart discharge conveyor 2. During normal times, the moving base 6c moves backward and stops at a standby position in which the rear support 6f is disposed near the cart supply conveyor 1 with the lifting platform 6d lowered, and the cart 7 to the end position of the cart supply conveyor 1 is stopped. When the entry or the descent of the lifter 5 with the cart 7 is detected, the moving base 6c moves forward and stops after the lifting platform 6d rises, and when the cart 7 does not exist in the rear support 6f or from the rear support 6f. When the separation of the cart 7 is detected, the elevating platform 6d is lowered and the moving base 6c is moved backward and stopped.

  Hereinafter, transfer of the cart 7 and stacking of the articles A will be described with reference to FIGS. The traverser 6 stops in the lowered state at the retracted position, and the lifter 5 stops at the lowest position. When the cart supply conveyor 1 supplies the empty cart 7 to the end position, the traverser 6 lifts the empty cart 7 on the rear side as shown in FIG. 6A, and as shown in FIG. 6B. The traverser 6 moves forward. When the left and right lifters 5 lift the empty cart 7 as shown in FIG. 6 (c), the traverser 6 descends, and as shown in FIG. 6 (d), the traverser 6 moves back to its original position.

  In the article transfer device 4, as shown in FIG. 8A, when the article A width-adjusted by the width adjustment device 4a is transferred onto the transfer plate 4b by the back-pressing of the pressing plate 4c, it is shown in FIG. 8B. Thus, the transfer plate 4b advances to the top of the cart 7 together with the pressing plate 4c. As shown in FIG. 8 (c), the transfer plate 4 b starts to retract first, and the pressing plate 4 c temporarily stops at that position and presses the rear side of the item A to stack the item A on the cart 7. Thereafter, as shown in FIG. 8 (d), the holding plate 4c is retracted, the left and right lifters 5 slightly raise the cart 7, and the upper surface of the article A is leveled by the vibration device 4d. Is lowered by one step. The steps of FIGS. 8A to 8D are repeated a predetermined number of steps. Meanwhile, the cart supply conveyor 1 supplies the next empty cart 7 to the end position and stands by.

  When the actual cart 7 in which the left and right lifters 5 are stacked in a predetermined number of stages is lowered, the traverser 6 lifts the empty cart 7 on the rear side as shown in FIG. 7 is placed on the front side, and the traverser 6 moves forward as shown in FIG. When the left and right lifters 5 lift the rear empty cart 7 as shown in FIG. 7 (c), the traverser 6 descends to place the actual cart 7 on the cart discharge conveyor 2, and FIG. 7 (d). As shown in FIG. 4, the traverser 6 moves back to the original position, and the cart discharge conveyor 2 discharges the actual cart 7. In this manner, the steps of FIGS. 6A to 7D and FIGS. 8A to 8D are repeated until the articles A are stacked on all the carts 7 and discharged.

  As described above, according to the present embodiment, the lifter 5 has both the supply / discharge operation of the cart 7 to the article transfer device 4 and the lowering operation of the cart 7 being stacked. The article can be lifted and stacked up to the article transfer device 4 directly without being fixed to the pallet, and the work of detaching from the pallet is omitted. Further, since the flow of the cart 7 is linear, there is no need to change the direction when the cart 7 is transferred, and the supply and discharge capabilities of the cart 7 are improved. In addition, since the traverser 6 has a structure in which the cart 7 can be mounted back and forth, the transfer of the empty cart 7 and the actual cart 7 is efficiently performed in one reciprocal movement. Emission capacity is further improved. Further, since the lifter 5 is installed facing the left and right positions of the flow of the cart 7, the traverser 6 can be installed in the space formed in the center of the cart 7 without interfering with the lifter 5. The degree of freedom of installation is improved.

  The technology of the present invention is used for stacking bags and boxes onto carts, pallets, containers, and other load carriers.

1 Cart supply conveyor (load carrier supply conveyor)
2 Cart discharge conveyor (load carrier discharge conveyor)
3 Article Conveyor 4 Article Transfer Device 4a Widening Device 4b Transfer Plate 4c Holding Plate 4d Vibration Device 5 Lifter 5a Mast 5b Receiver 5c Motor 6 Traverser 6a Rail 6b Motor 6c Moving Base 6d Lifting Platform 6e Front Receiver 6f Rear receiver 6g Wheel receiver 7 Cart (load carrier)
A article

Claims (3)

  A load carrier supply / discharge device for continuously supplying an empty load carrier to an article loading position and discharging an actual load carrier on which an article is loaded. A load carrier supply conveyor that supplies the load, a load carrier discharge conveyor that discharges an actual load carrier from the end position of the load carrier supply conveyor in the same direction as the supply direction, and the load carrier supply conveyor and the load. A lifter that raises and lowers the load carrier between a position between the carrier discharge conveyor and an article stacking height position thereabove, and an empty load carrier on the load carrier supply conveyor is transferred to the lifter; The actual load carrier on the lifter is composed of a traverser that is transferred to the load carrier discharge conveyor. When an empty load carrier is transferred from the traverser, the empty load carrier is loaded into the article. Lift up to the height and finish packing the goods Lifter control means for lowering the carrier to the lowest position, and when the load carrier supply conveyor supplies an empty load carrier with the lifter in the lowest position, the empty load carrier is transferred to the lifter. And a traverser control means for transferring the actual load carrier to the load carrier discharge conveyor when the lifter lowers the actual load carrier to the lowest position. Discharging device.   The traverser has a rear receiver that can mount an empty load carrier and a front receiver that can mount an actual load carrier, and is structured to be able to move back and forth, and the traverser control means is a rear receiver. The load carrier of the actual load on the lifter that descends as it rises at the standby position where it is placed near the load carrier supply conveyor and lifts the empty load carrier on the load carrier supply conveyor on the rear receiving device To move forward on the front receiving device, and when the lifter lifts the empty load carrying device, it descends and controls the actual load carrying device to be lowered onto the load carrying device discharge conveyor and retracted to the standby position. The load carrier supply / discharge device according to claim 1, wherein   The lifter is installed opposite to the left and right positions between the load transporter supply conveyor and the load transporter discharge conveyor, and the left and right ends of the load transporter are hooked and moved up and down in conjunction with each other. 2. A load carrier supply / discharge device according to 2.

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