JP2002220132A - Device for taking out goods from stacker - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To ensure that articles from a stacker can be taken out at high speed. SOLUTION: In a device 15 for taking out articles from a stacker 10, the device comprises a pair of openable and closable rollers 41, 42,
It has a take-out roller device 40 that can rotate at least one of the rollers 41. The take-out roller device 40 closes the pair of rollers 41 and 42 at the take-out timing of the stored product 1 at the take-out position and pinches the stored product 1. And at the same time, the stored article 1 can be sent out in the rotational tangential direction of the rollers 41 and 42 by the rotational driving force of at least one of the rollers 41.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing articles from a stacker.

[0002]

2. Description of the Related Art Heretofore, a stacker has been used for temporarily storing articles such as deliveries and then taking out the articles at an appropriate timing in a sorting facility for deliveries such as mail and home delivery. .

[0003] In a conventional device for removing articles from a stacker, which removes items by gravity from the storage room of the stacker and removes the items, the speed of unloading cannot be increased, and the items adhere to the wall surface of the storage room due to static electricity. May not be removed.

[0004] Therefore, as an article take-out device capable of taking out stored items at high speed and reliably, there is a device for holding the stored items with a chuck and pulling out the stored items from the storage chamber. The chuck is disposed on the outlet side of the storage chamber, and reciprocates between a standby position, which is outwardly distant from the outlet, and a take-out position, which is close to the outlet, and holds the stored item during the entire stroke of pulling out the stored item from the storage room. Keep doing.

[0005]

In the prior art, it is possible to take out a stored item by holding the stored item with a predetermined stroke from the storage chamber while holding the stored item. Can not be shorter than the entire stroke time of the chuck, and there is a limit to speeding up.

An object of the present invention is to make it possible to take out articles from a stacker reliably and at high speed.

[0007]

According to a first aspect of the present invention, there is provided an apparatus for removing articles from a stacker, wherein the articles are taken out of a storage chamber of the stacker, the apparatus comprising a pair of openable and closable rollers, at least one of the rollers being rotatable. The take-out roller device has a take-out roller device, and the take-out roller device closes the pair of rollers at the take-out timing at the take-out position to pinch the stored product, and removes the stored product by the rotational driving force of at least one of the rollers. The roller can be fed in the tangential direction of rotation of the roller.

According to a second aspect of the present invention, in the first aspect of the present invention, the take-out roller device is further disposed on the exit side of the storage chamber, and a pair of rollers are separated from the exit to a standby position and an exit-side take-out position. And reciprocate between them.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the take-out roller device further comprises a pair of rollers at the tip of a swing arm, and the pair of rollers are moved to a standby position and a take-out position for stored items. It reciprocates so as to be positioned alternately.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the take-out roller device further includes a rotating wheel provided at a swing center of a swing arm, and at least one of a pair of rollers and the rotating wheel are provided. The above-mentioned roller is driven to rotate by a driving source which is wound around a winding body and is separated from the swing arm.

According to a fifth aspect of the present invention, in any one of the second to fourth aspects, the take-out roller device further comprises a cam that opens the pair of rollers at the standby position side and closes the pair at the take-out position. It is like that.

According to a sixth aspect of the present invention, there is provided the drawer roller according to any one of the first to fifth aspects, wherein the take-out roller device further pulls the stored matter forward in a direction in which the stored goods are sent out. The device is arranged.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects of the present invention, the stacker further includes a plurality of storage chambers adjacent to each other in a circumferential direction of the rotary drum, and the storage items in each storage chamber are sequentially arranged. It is positioned at the take-out position.

[0014]

According to the first aspect of the present invention, the following operations are provided. The take-out roller device closes the pair of rollers to clamp the stored item, and at the same time, sends out the stored item to the outside of the storage chamber by the rotational driving force of at least one of the rollers. Therefore, the time for taking out the stored items can be made instantaneous, and the taking out speed can be increased.

According to the second aspect of the present invention, the following operations are provided. By arranging the take-out roller device on the exit side of the storage chamber and allowing the pair of rollers to stand by in a wide space that is outwardly distant from the exit, the layout of each part constituting the stacker can be simplified.

According to the third aspect of the invention, the following effects are obtained. Since the take-out roller device includes a pair of rollers at the tip of the swing arm, the pair of rollers can smoothly reciprocate between the standby position and the take-out position without involving a movement guide, and the device configuration can be simplified.

According to the fourth aspect of the invention, the following operations are provided. The take-out roller device is provided with a rotating wheel at the swing center of the swing arm, the winding body is wound around at least one of the pair of rollers and this rotating wheel, and at least one of the rollers is rotationally driven. The drive source can be arranged separately from the swing arm. Therefore, it is possible to swing the swing arm at a high speed without moving the drive source together with the swing arm, and it is possible to speed up the take-out.

According to the fifth aspect of the invention, the following operations are provided. The take-out roller device opens and closes a pair of rollers with a cam,
By opening at the standby position and closing at the unloading position,
The stored items can be reliably held at the take-out position by the pair of rollers.

According to the sixth aspect of the present invention, the following operations are provided. Since the stored items sent out by the take-out roller device are further transported by the draw-out roller device and smoothly carried out, the delivery of the stored items from the take-out roller device can be performed smoothly, and the speed of taking out can be increased.

According to the seventh aspect of the invention, the following effects are obtained. The stacker rotates the rotary drum, and sequentially positions the storage items in the storage chambers at the extraction positions, whereby the storage items can be sequentially extracted by the extraction roller device, and the productivity of the extraction can be improved.

By disposing the take-out roller device on the outlet side of the storage chamber of the rotary drum, the pair of rollers sandwich the stored item on the outer peripheral side of the rotary drum with a large distance between the adjacent stored items. In addition, it is possible to prevent a mistake in sandwiching adjacent stored items together.

The take-out roller device is provided with a pair of rollers at the tip of the swing arm, and the swing center of the swing arm is placed in a tangential direction to the take-out position of the rotary drum. The reciprocating motion is almost parallel to the take-out direction), so that the speed of taking out stored items can be increased smoothly.

[0023]

1 is a front view showing a stacker, FIG. 2 is a side view showing a part of a side surface of FIG. 1, FIG. 3 is a side view showing an article take-out device, and FIG. 4 is a plan view of FIG. FIG. 5 is a perspective view showing a partition member and a stopper, and FIG. 6 is a perspective view showing a state where the stopper is fixed to the partition member.

The stacker 10 shown in FIGS. 1 and 2 is installed in a sorting facility for articles such as deliveries, temporarily stores these articles as articles 1, and can take out the articles 1 at an appropriate timing. I do.

The stacker 10 includes a rotary drum 1 driven by a servomotor 11 fixed to a frame 10A.
2 and a large number adjacent to each other in the circumferential direction of the rotating drum 12.
A storage room 13 for the storage items 1 is provided. Stacker 10
The outer end of the storage chamber 13 in the radial direction is used as the entrance 14 of the storage 1.

Stored item 1 has unique destination information such as an identification number and a telephone number of a delivery destination. The destination information is stored in the OC while the stored item 1 is being transported to the stacker 10.
It is read by a reader such as R and transferred to the controller. The stacker 10 is provided with an article input section and an article take-out section around the rotary drum 12, and positions the entrance / exit section 14 of the storage chamber 13 of the rotary drum 12 at the article input section to set the storage chamber 13.
In addition, the container 1 is put into the container 1 and the entrance 1 of any one of the storage chambers 13 of the rotary drum 12 is positioned at the article take-out part, and the container 1 is taken out at a desired timing.

At this time, the controller stores the destination information of the storage item 1 transferred from the reader in the memory,
By driving the servo motor 11 to rotate the rotary drum 12,
The storage item 1 is stored in the storage room 13 positioned in the article input section.
Input. By this repetition, the controller stores the position of each storage room 13 and the destination information of the stored article 1 put into each storage room 13 in association with each other.

The controller is, for example, a rotary drum 12
When the stored items 1 are stored in all of the storage rooms 13, the destination information of each stored item 1 stored in the memory is read out and sorted (sorted), rearranged in a predetermined order such as a numerical order, and the like. The servo motor 11 is controlled so that the storage chambers 13 at the positions corresponding to the order are sequentially positioned in the article take-out section.
Further, the controller operates the article take-out device 15 (FIG. 3) installed in the article take-out section at the timing when the desired storage room 13 is positioned in the article take-out section, and is stored in the storage room 13. Remove the stored item 1. As a result, the deliveries supplied in any order can be rearranged in a predetermined order.

Hereinafter, the rotating drum 1 in the stacker 10 will be described.
2 and the structure of the article take-out device 15 will be described.

(Structure of Rotary Drum 12) (FIG. 1, FIG. 2,
5 and 6) As shown in FIGS. 1 and 2, the rotating drum 12 is
Partition members 22 extending in the radial direction from the respective circumferential multiple positions are fixedly provided on the side plate 23 of the rotary drum 12 by the mounting shaft 24, and the space between the adjacent partition members 22 for the storage object 1 is provided. Storage room 13. More specifically, the partition member 22 is configured as shown in FIG. A portion of the mounting shaft 24 that penetrates and is positioned on both sides of the partition 25 is fixedly provided with a work support 26 having a flat elliptical shape. Then, the opposing partition pieces 25 of the adjacent partition members 22 and the work supporting portions 2 opposing each other on both sides of the partition pieces 25.
The space between 6 is a storage room 13 for the storage items 1. At this time, the partition piece 25 is tapered so as to have a wide width toward the outside in the radial direction of the rotary drum 12, and the adjacent partition member 2
The space between the storage chambers 13 formed by the two opposing partitioning pieces 25 is configured to be a constant distance in the longitudinal direction thereof, which is suitable for accommodating the stored articles 1 without any play in the thickness direction. The width of the storage chamber 13 is defined by the side plate 23 of the rotary drum 12 and the rising wall 22A of the partition member 22, and is configured to have a constant width suitable for accommodating the storage items 1 without any play in the width direction. I have.

The rotary drum 12 is provided with a stopper 27 which is inserted between the adjacent partition members 22 from the side of the storage chamber 13 to form the bottom of the storage chamber 13, and fixes the stopper 27 to a fixed position of the partition member 22. By changing in the longitudinal direction, the depth of the storage chamber 13 can be adjusted according to the length of the storage item 1.

As shown in FIG. 5, the partition member 22 has hook-shaped fixing portions 28 for stoppers 27 at a plurality of longitudinal positions on one side. The stopper 27 is provided with grooves 29 which are inserted into the partition pieces 25 facing each other with the storage chamber 13 of the adjacent partition member 22 interposed therebetween, thereby forming a bottom part of the storage chamber 13A, and a bottom formation part 27A. And a rod portion 27B protruding to one side from the portion 27A and selectively attached to or detached from one of the fixing portions 28 of the one partition member 22. Further, the rod portions 2 of the plurality of adjacent stoppers 27 fixed to the fixing portions 28 of the adjacent partition members 22 respectively.
7B are bound and held together by an elastic ring 30 such as a rubber band at the distal end protruding from the fixing portion 28 of the partition member 22 (FIG. 2).

The stacker 10 has a work fly-out prevention ring 31 surrounding the rotary drum 12 and surrounding the entrance 14 of the storage room 13 at the center in the width direction.

(Structure of Article Pickup Device 15) (FIGS. 3 and 4) The stacker 10
Each of the plurality of storage rooms 13 is sequentially positioned in the article take-out section, and the stored items 1 stored in each storage room 13 are sequentially positioned at the take-out position. The article take-out device 15 has a take-out roller device 40 that is arranged at a position corresponding to the entrance 14 of the storage room 13 in the article take-out section.

The take-out roller device 40 is provided with a pair of openable and closable rollers 41, 42 at the respective ends of left and right swing arms 44 pivotally supported on a support shaft 43 provided on the frame 10A of the stacker 10. The two rollers 41 and 42 are configured such that one of the driving rollers 41 can be driven to rotate, and the other nip roller can be opened and closed by bringing the nip roller into and out of contact with the driving roller 41.

The take-out roller device 40 includes a pair of rollers 41, 42 provided on the left and right swing arms 44, respectively. Reciprocate so as to be positioned alternately with the take-out position.

The take-out roller device 40 closes the pair of rollers 41 and 42 at the take-out position with respect to the stored article 1 and takes out the right and left partition pieces 25 of the partition member 22 at the take-out timing.
The tip of the stored article 1 located in the outer space of the
And the driving roller 41
The stored article 1 is sent out in the rotational tangential direction of the rollers 41 and 42 with the rotational driving force of the roller 1.

The take-out roller device 40 includes a swing arm 4
4 is connected to a flank arm 47 of a rotary solenoid 46 by a connection ring 45, and the swing arm 44 swings.

The take-out roller device 40 includes a swing arm 4
4, a rotating wheel 51 is provided at the swing center (support shaft 43), and a winding body 53 such as a belt is wound around the driving wheel 52 provided on the driving roller 41 and the rotating wheel 51, and is separated from the swing arm 44. The driving roller 41 is rotationally driven by the driving motor 54 arranged.

The take-out roller device 40 includes a pair of rollers 4
The cams 1 and 42 have a cam 55 that opens at the standby position side and closes at the unloading position. The cam follower 57 is the nip roller 42
Provided on a member pivotally supported by the swing arm 44 at a fulcrum 56A, and cooperates with a cam lever 56B constituting a cam 55 provided on the side of the gantry frame 10A.

The article take-out device 15 is an article take-out section, and the article take-out roller device 40 sends out the article 1 to the side where the article 1 is sent out.
Roller device 60 that further pulls out the front side in the feeding direction. The draw-out roller device 60 includes a draw-out guide table 61 which is opposed to the entrance / exit portion 14 of the storage room 13 positioned at the article take-out portion and is continuous in the longitudinal direction of the storage room 13.
Is provided with a pair of pull-out rollers 62 and 63,
A winding body 64 such as a belt is wound around the driving wheels 62A of the second and third driving wheels 62, and the pull-out rollers 62, 6
3 is driven to rotate.

Accordingly, the operation of taking out the stored items 1 in the stacker 10 is performed as follows. (1) The controller controls the rotating drum 12 containing the storage items 1
When the storage room 13 is positioned at the article take-out section as described above, at the same time, the swing arm 44 of the take-out roller device 40 is used.
Is swung, and the pair of rollers 41 and 42 are moved from the standby position to the take-out position of the stored article 1.

(2) The pair of rollers 41 and 42 are opened at the standby position side, closed at the take-out position, and clamp the stored item 1 at the take-out position. At this time, the rotation is given to the driving roller 41, so that the pair of rollers 41 and 42 sandwiches the stored item 1 and simultaneously sends the stored item 1 outward so as to fly.

(3) The stored articles 1 sent out by the take-out roller device 40 are taken out of the take-out guide table 61 of the take-out roller device 60.
It is guided and carried out.

According to the present embodiment, the following operations are provided. (Operation Based on Structure of Rotary Drum 12) By changing the fixing position of the stopper 27 forming the bottom of each storage chamber 13 provided in the rotary drum 12,
By adjusting the depth of the storage chamber 13, the storage items 1 of various lengths can be stored, and can be reliably removed by the external removal device 15.

Fixing portions 28 for stoppers 27 are provided at a plurality of positions in the longitudinal direction of the partition member 22 forming the storage chamber 13.
Is provided, the fixing position of the stopper 27 can be changed stepwise, and the depth of the storage chamber 13 can be adjusted stepwise.

Since the rod portion 27B of the stopper 27 can be attached to and detached from the fixed portion 28 of the partition member 22, the structure can be simplified and reduced in weight, and the rotating drum 12 can be rotated at high speed.

Since the bottom forming portion 27A of the stopper 27 inserts the front and rear grooves 29 into the opposing partitioning pieces 25 of the adjacent partitioning member 22, it is possible to bite the stored object 1 with the partitioning piece 25. , The bottom of the storage chamber 13 can be formed.

A stopper 27 for each storage chamber 13 fixed to each of the fixing portions 28 of the adjacent partition member 22
Are bound and held by an elastic ring 30 such as rubber band wound around the rod portion 27B, so that the fixing and holding mechanism of the stopper 27 can be simplified, the configuration can be reduced in weight, and the rotating drum 12 can be operated at higher speed. Can rotate.

(Operation Based on Structure of Article Removal Device 15) The removal roller device 40 closes the pair of rollers 41 and 42 to clamp the storage item 1 and, at the same time, rotates the storage item 1 by the rotational driving force of the drive roller 41. It is sent out so as to fly out of the storage room 13. Therefore, the unloading time of the storage item 1 is instantaneous,
Extraction speed can be increased.

By arranging the take-out roller device 40 at the exit side of the storage chamber 13 and making the pair of rollers 41 and 42 stand by in a wide space away from the exit, the layout of each part constituting the stacker 10 is simplified. it can.

The take-out roller device 40 is connected to the swing arm 4
By providing a pair of rollers 41, 42 at the tip of 4, the pair of rollers 41, 42 can smoothly reciprocate between the standby position and the take-out position without involving a movement guide,
The device configuration can be simplified.

The take-out roller device 40 is connected to the swing arm 4
A rotating wheel 51 is provided at the swing center of
The driving motor 54 can be separated from the swing arm 44 by winding the winding body 53 around the driving roller 41 and the rotating wheel 51 of the first and second 42 and rotating the driving roller 41. Accordingly, the swing arm 44 can be swung at high speed without moving the drive motor 54 together with the swing arm 44, and the take-out speed can be increased.

The take-out roller device 40 opens and closes the pair of rollers 41 and 42 by means of the cam 55, opens at the standby position side, and closes at the take-out position.
By virtue of 42, the stored article 1 can be reliably held at the take-out position.

Since the stored items 1 sent out by the take-out roller device 40 are further transported by the pull-out roller device 60 and smoothly carried out, the delivery of the stored items 1 from the take-out roller device 40 is made smooth and the take-out is performed. Speed up.

The stacker 10 rotates the rotary drum 12 and sequentially positions the storage items 1 in the storage chambers 13 at the extraction positions, thereby sequentially extracting the storage items 1 by the extraction roller device 40, thereby improving the productivity of the extraction. Can be improved.

By arranging the take-out roller device 40 on the outlet side of the storage chamber 13 of the rotary drum 12, the pair of rollers 41 and 42 are located on the outer peripheral side of the rotary drum 12 where the interval between the adjacent storage items 1 is increased. Therefore, it becomes possible to pinch the stored items 1, and it is possible to prevent an error that the adjacent stored items 1 are pinched together.

The take-out roller device 40 is a swing arm 4
4 is provided with a pair of rollers 41 and 42 at a tip thereof, and a swing arm
By placing the swing center of the pair, a pair of rollers 41,
Reference numeral 42 indicates a reciprocating motion which is nearly parallel to the longitudinal direction (the unloading direction) of the unloading 1, and the unloading of the unloading 1 can be smoothly performed at a high speed.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and the design may be changed without departing from the scope of the present invention. The present invention is also included in the present invention. For example, the stacker of the present invention does not have to be a rotating drum type. Further, the article take-out device of the present invention is not limited to a swing reciprocating type using a swing arm, but may be a linear reciprocating type.

[0060]

As described above, according to the present invention, articles from the stacker can be reliably taken out at a high speed.

[Brief description of the drawings]

FIG. 1 is a front view showing a stacker.

FIG. 2 is a side view showing a part of the side surface of FIG. 1;

FIG. 3 is a side view showing the article take-out device.

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is a perspective view showing a partition member and a stopper.

FIG. 6 is a perspective view showing a state in which a stopper is fixed to a partition member.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 stored item 10 stacker 12 rotating drum 13 storage chamber 14 doorway 15 article removal device 40 removal roller device 41 drive roller 42 nip roller 44 swing arm 51 rotating wheel 52 drive wheel 53 winding body 54 drive motor (drive source) 55 cam 60 Pull-out roller device

Claims (7)

[Claims] 1. An apparatus for taking out an article from a stacker for taking out a stored item from a storage chamber of a stacker, comprising: a take-out roller device comprising a pair of openable and closable rollers, at least one of which is rotatable. The device closes the pair of rollers at the take-out timing at the take-out position of the stored product to pinch the stored product, and allows the stored product to be sent out in the rotational tangential direction of the roller by the rotational driving force of at least one of the rollers. An apparatus for removing articles from a stacker, comprising: 2. The stacker according to claim 1, wherein the take-out roller device is disposed on the outlet side of the storage chamber, and reciprocates a pair of rollers between a standby position away from the outlet and a take-out position near the outlet. For removing goods from 3. The take-out roller device according to claim 1, further comprising a pair of rollers at the tip of a swing arm, and reciprocating such that the pair of rollers are alternately positioned at a standby position and a take-out position for stored items. For unloading goods from the stacker. 4. The take-out roller device is provided with a rotating wheel at a swing center of a swing arm, and a winding body is wound around at least one of a pair of rollers and the rotating wheel, and is separated from the swing arm. 4. The apparatus for taking out articles from a stacker according to claim 3, wherein the rollers are driven to rotate by an arranged drive source. 5. The apparatus according to claim 2, wherein the take-out roller device has a cam that opens the pair of rollers at the standby position side and closes the pair of rollers at the take-out position. 6. The stacker according to claim 1, further comprising a draw-out roller device that further pulls out the stored items forward in the direction in which the stored items are sent out. For removing goods from 7. The stacker according to claim 1, wherein the stacker includes a plurality of storage chambers that are adjacent to each other in a circumferential direction of the rotary drum, and a storage item in each storage chamber is sequentially positioned at a take-out position. Goods removal device.