TWI344932B - - Google Patents

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Publication number
TWI344932B
TWI344932B TW095129093A TW95129093A TWI344932B TW I344932 B TWI344932 B TW I344932B TW 095129093 A TW095129093 A TW 095129093A TW 95129093 A TW95129093 A TW 95129093A TW I344932 B TWI344932 B TW I344932B
Authority
TW
Taiwan
Prior art keywords
tray
workpiece
cut
roller
slide
Prior art date
Application number
TW095129093A
Other languages
Chinese (zh)
Other versions
TW200728175A (en
Inventor
Hiroshi Fukazawa
Ryosuke Tahara
Daigoro Nakamura
Original Assignee
Murata Machinery Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2006008646A priority Critical patent/JP4569478B2/en
Application filed by Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of TW200728175A publication Critical patent/TW200728175A/en
Application granted granted Critical
Publication of TWI344932B publication Critical patent/TWI344932B/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G59/00De-stacking of articles
    • B65G59/06De-stacking from the bottom of the stack
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G1/00Storing articles, individually or in orderly arrangement, in warehouses or magazines
    • B65G1/02Storage devices
    • B65G1/04Storage devices mechanical
    • B65G1/0407Storage devices mechanical using stacker cranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G13/00Roller-ways
    • B65G13/02Roller-ways having driven rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02Articles
    • B65G2201/0235Containers
    • B65G2201/0258Trays, totes or bins

Description

1344932 Ο) 九、發明說明 【發明所屬之技術領域】 本發明是關於托盤搬運系統,特別是關於由疊積托盤 的層積狀態下之托盤群,取出任意位置的托盤之發明的改 良。 【先前技術】 在將板狀的工件載置於托盤後搬運至各種處理之情況 ,將托盤非一片片而是疊積之托盤群的狀態進行搬運或暫 時保管。當欲對一個工件進行處理時,則從這樣的托盤群 中切出一片目的托盤。又,因此,也被提案有各種由托盤 群中切出一片托盤之方法。 例如,專利文獻1的圖8〜圖9所示之關於切出的技 術。此技術是於將滚子設成軌道狀之2列的輸送機43的 途中,設置升降機40,由已被載置於此升降機40的托盤 群中切出目的之托盤20者。即,設至於升降機4〇附近的 支柱41之夾頭42被插入於已被載置於升降機40的托盤 群3 0,能支承托盤群3 0的任意之上半部。在此狀態下, 藉由升降機40下降,能夠將托盤群30分成上下30a、3 0b ,而切出位於其分割點之托盤20。具體而言,首先使升降 機40升降,將欲切出的托盤20做成輸送機43之高度。 此時,預先以壓缸44使位於載置於升降機40的托盤群的 升降路徑之輸送機43a後退,使輸送機43a不會撞擊到升 降的托盤群。然後,使欲切出的托盤20到達僅較輸送機 -5- (2) (2)1344932 43a稍高的位置之狀態,停止升降後,使預先後退之輸送 機43a前進,返回至可載置托盤20之位置。當在此狀態 下使升降機40下降時,則目的之托盤20會承載於輸送機 43a,並且較此托盤20下方的下的托盤群3 0b則與升降機 40 —同下降至輸送機43 a的下方。在此狀態下,藉由驅動 輸送機43、43a,能將已經切出的托盤20搬運至他處。 [專利文獻1]日本特開2005-89048號公報 【發明內容】 [發明所欲解決之課題] 但,在這種系統中,會產生在由已經切出的托盤20 取出工件之作業需要在他處進行,且系統全體大型化之問 題。 [用以解決課題之手段] 爲了解決以上課題,請求項1之托盤搬運系統,其特 徵爲:設有:將載置有工件的托盤層積保管之手段:由被 保管的托盤群中切出任意位置的一片托盤之手段;由退後 位置進入至已被切出的托盤之下方,由前述托盤取出工件 之手段。在此,所謂切出是指藉由將層積於目的托盤的上 下之目的以外的托盤分別分離成上下,來做成在該目的托 盤的上下製作空間而可出入(access )。 請求項2之發明,是針對請求項1之發明,其中,具 有取出了工件之空的托盤之保管手段,前述取出手段之退 -6- (3) (3)1344932 避位置在平面視角是與前述保管手段重疊。 請求項3之發明,是針對請求項1或2之發明,其中 ,將前述取出手段兼作爲在空的托盤接收工件之際的接收 手段。 [發明效果] 若根據請求項1之發明的話,能夠由被保管的托盤, 隨機地切出期望的托盤,又由已切出的托盤,在該位置取 出工件。 若根據請求項2之發明的話,除了與請求項1之發明 相同的效果以外,因將取出手段的退避位置做成在平面視 角是與空的托盤之保管手段相同位置,所以能夠不需要前 述退避位置用之專用空間。若根據請求項3之發明的話, 除了與請求項1之發明相同的效果以外,藉由將工件的取 出手段兼作爲工件之接收手段,可有效地活用取出手段。 【實施方式】 以下,說明關於本發明的理想實施形態。 如圖1所示,實施例之托盤搬運系統1 (以下亦僅稱 爲「系統j ),是具有3個能夠收納托盤之埠的系統。此 1是接收由上游行程所搬運來的托盤群(指將托盤層 積者),由此托盤群中切出目的托盤,將載置於此托盤之 工件逯出至設置於此系統附近之處理製程者。或,由處理 _程’將已進行了處理之工件接收至空的托盤者。 (4) 1344932 此系統1之對象的托盤2 0是如圖2所示,具 數橫條2〗被隔著空間倂設之底部22 ;設置於底部 圍之壁部23;安裝於壁部23的上端,用來當將托f 起時,供一般的舉起裝置X之爪Xa勾住之支承部 照圖3 )。例如,在本發明,作爲舉起裝置X的例 用後述的夾頭部7(參照圖6)。又,當使托盤20 之間水平移動時,使其移動於呈軌道狀排列之2列 Y上,如圖4所示,形成於托盤20的壁部23之外 緣25載置於滾子Y上。底部22是橫條21與橫條 隔著間隔,所以當要取出載置於此底部22的板狀 W時,由此底部之下方貫通橫條之間而上升之滑動 件W送出托盤外。此系統1是準備有3個埠3,第 是如圖5(a)所示,由系統1的正面,藉由未圖示 等,移轉托盤群30之場所,已被移轉之托盤群30 管於設置於埠3a之左右的框架2a之保管手段4« 又,在埠3a的左右,設有支承托盤群30的左 予以升降之升降部5。 又在第1埠3a的前後,於架設於左右之樑部e 用來切出托盤群30的中間之托盤20a的夾頭部7。 如圖6所示,一邊以升降部5使托盤群30升降, 欲切出的托盤2 0a到達夾頭部7的話使其暫時停止 中間之托盤20a、20b。當在中間支承之狀態下再次 降部5之下降時,則能夠將托盤群30分成上下兩 ,在此夾頭部7,準備有2個夾頭7a、7b,下夾頭 有:多 22的周 淫20舉 24 (參 子,使 在埠3 的滚子 周的突 2 1之間 之工件 台將工 1埠3a 的吊車 是被保 右底邊 i,設有 藉此, 一邊當 ,支承 開始升 個。又 I 7a支 -8- 1344932[Technical Field] The present invention relates to a pallet transport system, and more particularly to an improvement of the invention for taking out a pallet at an arbitrary position by a stack of stacked pallets in a stacked state. [Prior Art] When a plate-shaped workpiece is placed on a tray and transported to various processes, the tray is transported or temporarily stored in a state in which the tray is not one piece but stacked. When a workpiece is to be processed, a destination tray is cut out from such a tray group. Further, therefore, various methods of cutting out a tray from the tray group have been proposed. For example, the technique of cutting out shown in Figs. 8 to 9 of Patent Document 1. This technique is provided in the middle of the conveyor 43 in which the rollers are arranged in two rows of rails, and the elevator 40 is provided, and the tray 20 for the purpose is cut out from the tray group that has been placed on the elevator 40. In other words, the chuck 42 of the column 41 near the elevator 4 is inserted into the tray group 30 that has been placed on the elevator 40, and can support any upper half of the tray group 30. In this state, by lowering the elevator 40, the tray group 30 can be divided into upper and lower portions 30a, 30b, and the tray 20 at the division point can be cut out. Specifically, first, the elevator 40 is raised and lowered, and the tray 20 to be cut is set to the height of the conveyor 43. At this time, the conveyor 43a located on the lifting path of the pallet group placed on the elevator 40 is retracted by the cylinder 44 in advance, so that the conveyor 43a does not hit the descending pallet group. Then, the tray 20 to be cut is brought to a position slightly higher than the conveyor 5--(2) (2) 1344923 43a, and after the lifting is stopped, the conveyor 43a that has been retracted in advance is advanced, and the tray 43 can be placed back. The position of the tray 20. When the elevator 40 is lowered in this state, the destination tray 20 is carried on the conveyor 43a, and the lower tray group 30b below the tray 20 is lowered to the lower side of the conveyor 43a together with the elevator 40. . In this state, the tray 20 that has been cut out can be transported to other places by driving the conveyors 43, 43a. [Patent Document 1] Japanese Laid-Open Patent Publication No. 2005-89048 [Draft of the Invention] [Problems to be Solved by the Invention] However, in such a system, it is necessary to take out a job of taking out a workpiece from the tray 20 that has been cut out. It is carried out at the same time, and the whole system is enlarged. [Means for Solving the Problem] In order to solve the above problems, the tray transport system of claim 1 is characterized in that: a means for storing a tray on which a workpiece is placed is stored: cut out from the tray group to be stored Means of a single tray at any position; from the retracted position to the lower side of the tray that has been cut, means for removing the workpiece from the tray. Here, the term "cutting" means that the trays other than the ones stacked on the upper and lower sides of the destination tray are separated into upper and lower sides, so that the space can be opened and accessed in the upper and lower sides of the destination tray. The invention of claim 2 is directed to the invention of claim 1, wherein the storage means for removing the empty tray of the workpiece, the withdrawal means -6-(3) (3) 1344932 avoiding the position in the plane view angle is The storage means overlap. The invention of claim 3 is directed to the invention of claim 1 or 2, wherein the take-out means is also used as a receiving means for receiving a workpiece on an empty tray. [Effect of the Invention] According to the invention of claim 1, the desired tray can be randomly cut out from the tray to be stored, and the workpiece can be taken out at the position by the cut tray. According to the invention of claim 2, the evacuation position of the take-out means is the same as the storage means of the empty tray, except for the same effect as the invention of claim 1, so that the back-off can be eliminated. A dedicated space for location. According to the invention of claim 3, in addition to the same effects as those of the invention of claim 1, the take-out means can be effectively utilized by using the means for taking out the workpiece as the means for receiving the workpiece. [Embodiment] Hereinafter, a preferred embodiment of the present invention will be described. As shown in Fig. 1, the pallet transport system 1 of the embodiment (hereinafter also referred to simply as "system j") is a system having three magazines capable of accommodating pallets. This is a tray group that receives transported by an upstream trip ( Refers to the stacker of the tray), the tray of the tray is cut out from the tray group, and the workpiece placed on the tray is ejected to a processman set in the vicinity of the system. Alternatively, the process_process will be performed. The workpiece to be processed is received into the empty pallet. (4) 1344932 The tray 20 of the object of this system 1 is as shown in Fig. 2, and the horizontal strip 2 is placed at the bottom 22 separated by a space; The wall portion 23 is attached to the upper end of the wall portion 23 for supporting the support portion of the general lifting device X claw Xa when the bracket is raised, as shown in Fig. 3). For example, in the present invention, The example of the lifting device X is a chuck head 7 (see Fig. 6) which will be described later. Further, when the trays 20 are horizontally moved, they are moved in two rows Y arranged in a rail shape, as shown in Fig. 4 . The outer edge 25 formed on the wall portion 23 of the tray 20 is placed on the roller Y. The bottom portion 22 is a horizontal strip 21 spaced apart from the horizontal strip, so When the plate-shaped W placed on the bottom portion 22 is loaded, the slider W that rises between the bottom and the bottom of the bottom portion is sent out of the tray. The system 1 is prepared with three 埠3, which is as shown in FIG. a), on the front side of the system 1, the tray group 30 is transferred to the storage tray 4 Further, the left and right sides of the crucible 3a are provided with a lifting portion 5 for supporting the left and right of the tray group 30. The front and rear beams are mounted on the left and right beam portions e for cutting the middle of the tray group 30. As shown in Fig. 6, the tray group 30 is lifted and lowered by the lifting portion 5, and when the tray 20a to be cut reaches the chuck portion 7, the intermediate trays 20a and 20b are temporarily stopped. When the lower portion 5 is lowered in the intermediate support state, the tray group 30 can be divided into two upper and lower portions. Here, the chuck portion 7 is provided with two chucks 7a and 7b, and the lower chuck has a circumference of 22淫 20 lifting 24 (the ginseng, the workpiece in the 周 3 of the roller of the circumference of the workpiece 2 1 3a crane is protected by the right bottom i, Here, when one side, a supporting began to rise. I 7a and branched -8-1344932
承托盤群上側的最底下之托盤20a。 當在將托盤群30分成2個後,而下夾頭7a下降時’ 僅最下段的托盤20a由上側的托盤群30a分離,即成爲被 切出之狀態。 又,3個埠3是在璋3的前面側與後面側,設有前後 1對橫段各埠的狀態之滾子輸送機9a (參照圖7 ) °在此 滾子輸送機9a,排列有多數個滾子9。又,在滾子輸送機 9a的下方,設偶用來導引後述的滑動台10的移動之導軌 9b。滾子輸送機9a是用來使托盤20在各埠3間水平移動 者,承載形成托盤20的前後邊之突緣25,藉由滾子9的 旋轉驅動,移動於由第1至第3之各埠3之間。這些滾子 輸送機9a與滾子9是當托盤群30升降時,在後退成不會 與此托盤群30撞擊之位置待機,當使托盤20或滑動台10 移動時前進,形成使托盤20承載至滾子輸送機9a,而滑 動台10被承載至導軌9b之位置。 滑動台1〇是相當於請求項1所記載之取出手段。即 ,此滑動台10是用來將工件W由托盤20送出,或將工 件W接收於托盤20者。送出或接收是對朝系統.!背面之 方向所進行。這是由於對工件W之處理裝置(未圖示) 是設置於系統1的背面之故。此滑動台10,與呈板狀的工 件W之平面視角形狀大致相同大小之框體(未圖示)被 設置成水平的姿勢’在框體的內側,多數個滾子n被配 置成以其滾子面的頂面構成搬運面。滑動台1〇的前後之 框邊移動於前述之導軌9b上,能夠在第1〜第3焊間自由 -9 - (6) (6)1344932 地水平移動。 又’此滑動台10是設置成滾子11升降,配置成:當 此滚子11由托盤20的下方上升時,能夠在托盤底部22 的橫條21之間上升。藉由此上升,能夠將載置於托盤底 部22的工件W舉起至較托盤壁部23更高的位置。然後 ,滾子11成爲可旋轉驅動,將已被舉起的工件朝系統1 的背面側送出,或由背面側接收。 其次,使用圖5〜圖7說明此實施例的托盤搬運系統 〇 首先,最先如圖5(a)所示,滑動台10退避至第2 埠3b的狀態。在此狀態下,堆疊托盤20所構成之托盤群 30藉由未圖示的吊車搬運來,由第1埠3a的正面轉移至 第1埠3a之保管手段4。其次,升降部5上升,由保管手 段4接收托盤群30,逐漸下降。在下降的途中具有夾頭部 7,當欲切出之托盤20a下降至夾頭部7處時,暫時停止 下降(圖6(a))。夾頭部7使後退之上下夾頭7a、7b 前後,下夾頭7a支承欲切出的托盤20a,上夾頭7b支承 (欲切出的托盤20a)的上一個托盤2 Ob (圖6(b))。 在此狀態下,當升降部5再次開始下降時’則托盤群30 被分成上下兩個30a、3 0b (圖6(c))。在此情況,欲 切出的托盤20a位於上方的托盤群30a之最底下。在此狀 態下,夾頭部7使下夾頭7a下降。又’一邊下降,一邊 使後退之滾子輸送機9a與導軌9b前進。藉此,在被分成 上下之托盤群30a、30b之間,形成目的托盤20a之切出 -10- (7) (7)1344932 的狀態(圖5(b)、圖6(d))。已被切出的托盤2 0b 被載置於前進的托盤用滾子輸送機9a。 其次,使退避於第2埠3b之滑動台10藉由導軌9b 移動至第1埠3a,使其未至於已切出的托盤20a之正下方 (圖 5(b)〜(c)、圖 7(a))。 若到達位置時,則滑動台10的滾子11上升成貫通托 盤20a的底部22,將底部22的工件W舉起至較托盤20a 的壁部23更高之位置。若已舉起的話,使滑動台1〇的滾 子1 1旋轉驅動,將工件w送出至系統1的背面側(圖5 (d )、圖 7 ( b ))。 若已送出的話,藉由滾子輸送機9a與導軌9b,使空 的托盤20’a與滑動台10通過第2埠3b移動至第3埠3c (圖 5 ( e ))。 在第3璋3c,因事先移送至處理裝置之工件W會返 回,所以能夠將其接收於空托盤20’a。接收時,使滑動台 10進行與送出工件W時相反之動作即可。即,首先,使 滑動台10的滾子11由托盤20’a的下方上升至較托盤壁 部23更高的位置,等待工件W由系統1背面側被送來。 若工件被送來的話,一邊驅動滾子11,一邊接收(圖5( 〇 ),若工件W位於托盤20’a的正上方的話,則停止滾 子11使其下降。藉此,返回之工件W被載置於托盤20’a ,形成可搬運至下游行程之狀態。 再者,在接收此工件w的動作中,在第1埠3a,能 夠並行進行切出下一個托盤之作業。藉此,能夠提昇效率 -11 - (8) (8)1344932 再者’本發明不限於上述實施例,在不超出本發明的 技術思想範圍下可進行各種變更。取出手段不限於滑動台 1 0,若能取出工件W的話,則任何手段均可。 又’空的托盤亦可不需如上述實施例般立即移動至第 3埠3c’亦可暫時保管於第2 i阜3b,亦可作成滑動台1〇 退避於第2 i阜3b之狀態。這是由於由第1 i阜3a所送出之 工件根據處理行程的組合方式,也有到達他處後不返回之 情況之故。在這樣的情況,空托盤會聚集於第2埠3 b,但 使第2埠3b具備這樣的功能即可。 或,亦可滑動台10僅在第1埠3a與第2埠3b之間 移動,而在第3埠3c設置另外的滑動台。 【圖式簡單說明】 圖1是實施例的托盤搬運系統之槪要圖。 圖2是托盤之斜視圖。 圖3是舉起托盤時的說明圖。 圖4是以滾子使托盤水平移動時之說明圖。 圖5(a)〜(f)是說明托盤搬運系統的一連串之流 程的槪要圖。 圖6(a)〜(d)是由托盤群切出目的托盤的處理之 說明圖。 圖7(a) (b)是滾子部之說明圖,爲由左側面觀看 托盤搬運系統之圖。 -12- (9) (9)1344932 圖8是專利文獻1所記載之托盤搬運系統的圖。 圖9是圖8的系統之俯視圖。 【主要元件符號說明】 1 :托盤搬運系統 2 :支柱 3 :埠 3a :第1埠 3b :第2埠 3c :第3埠 4 :保管手段 5 :升降部 6 :樑部 7 :夾頭部 7 a :下夾頭 7 b :上夾頭 9 :滾子 9a :滾子輸送機 9b :導軌 1 〇 :滑動台 1 1 :滾子 20 :托盤 2 1 :橫條 2 2 :底部 -13- 1344932 (10) 2 3 :壁部 24 :支承部 25 :突緣 30 :托盤群The bottommost tray 20a on the upper side of the tray group. When the tray group 30 is divided into two, and the lower chuck 7a is lowered, only the lowermost tray 20a is separated from the upper tray group 30a, that is, it is cut out. Further, the three cymbals 3 are the roller conveyor 9a (see FIG. 7) in which the front and rear sides of the cymbal 3 are provided, and the roller conveyor 9a is arranged in the front and rear sides. Most of the rollers 9. Further, under the roller conveyor 9a, a guide rail 9b for guiding the movement of the slide table 10 to be described later is provided. The roller conveyor 9a is for moving the tray 20 horizontally between the turns 3, and carries the flange 25 forming the front and rear sides of the tray 20, and is driven by the rotation of the roller 9 to move from the first to the third. Between each 埠3. When the tray group 30 moves up and down, the roller conveyor 9a and the roller 9 stand by at a position where they do not collide with the tray group 30, and advance when the tray 20 or the slide table 10 is moved, so that the tray 20 is carried. To the roller conveyor 9a, the slide table 10 is carried to the position of the guide rail 9b. The slide table 1 is equivalent to the take-out means described in the claim 1. That is, the slide table 10 is for feeding the workpiece W from the tray 20 or receiving the workpiece W to the tray 20. Sending or receiving is to the system.! The direction of the back is carried out. This is because the processing device (not shown) for the workpiece W is disposed on the back surface of the system 1. The slide table 10 is provided in a horizontal posture with a frame body (not shown) having a shape substantially the same as the planar viewing angle of the workpiece W in a plate shape. On the inner side of the frame, a plurality of rollers n are arranged to be The top surface of the roller surface constitutes a conveying surface. The frame edges of the front and rear of the slide table 1 are moved on the guide rails 9b described above, and are horizontally movable in the first to third weld stations -9 - (6) (6) 1344932. Further, the slide table 10 is provided so that the rollers 11 are lifted and lowered, and when the rollers 11 are lifted from below the tray 20, they can be raised between the horizontal bars 21 of the tray bottom portion 22. By this rise, the workpiece W placed on the bottom portion 22 of the tray can be lifted up to a position higher than the tray wall portion 23. Then, the roller 11 is rotatably driven, and the lifted workpiece is fed toward the back side of the system 1 or received by the back side. Next, the pallet transport system of this embodiment will be described with reference to Figs. 5 to 7 . First, as shown in Fig. 5 (a), the slide table 10 is retracted to the second state 3b. In this state, the tray group 30 constituted by the stack tray 20 is transported by the crane (not shown), and is transferred from the front surface of the first cassette 3a to the storage means 4 of the first cassette 3a. Next, the elevating portion 5 ascends, and the tray group 30 is received by the storage unit 4, and gradually descends. On the way of the lowering, there is a grip head portion 7, and when the tray 20a to be cut is lowered to the grip head portion 7, the lowering is temporarily stopped (Fig. 6(a)). The chuck head 7 is configured to retract the upper and lower chucks 7a, 7b, and the lower chuck 7a supports the tray 20a to be cut, and the upper chuck 7b supports the upper tray 2 (to be cut out of the tray 20a). b)). In this state, when the elevating portion 5 starts to descend again, the tray group 30 is divided into upper and lower two 30a, 30b (Fig. 6(c)). In this case, the tray 20a to be cut out is located at the bottom of the upper tray group 30a. In this state, the chuck portion 7 lowers the lower chuck 7a. Further, while descending, the retracted roller conveyor 9a and the guide rail 9b are advanced. Thereby, a state in which the destination tray 20a is cut out of -10 (7) (7) 1344932 is formed between the upper and lower tray groups 30a and 30b (Fig. 5 (b), Fig. 6 (d)). The tray 20b that has been cut out is placed on the advancing tray roller conveyor 9a. Next, the slide table 10 retracted from the second 埠3b is moved to the first 埠3a by the guide rail 9b so as not to be directly below the cut tray 20a (Fig. 5(b) to (c), Fig. 7 (a)). When the position is reached, the roller 11 of the slide table 10 is raised to penetrate the bottom portion 22 of the tray 20a, and the workpiece W of the bottom portion 22 is lifted up to a position higher than the wall portion 23 of the tray 20a. When raised, the roller 1 1 of the slide table 1 is rotationally driven, and the workpiece w is sent to the back side of the system 1 (Fig. 5 (d), Fig. 7 (b)). When the roller conveyor 9a and the guide rail 9b have been fed, the empty tray 20'a and the slide table 10 are moved to the third 埠3c via the second 埠3b (Fig. 5(e)). In the third step 3c, since the workpiece W transferred to the processing device in advance is returned, it can be received in the empty tray 20'a. At the time of reception, the slide table 10 may be operated in the opposite direction to when the workpiece W is fed. That is, first, the roller 11 of the slide table 10 is raised from the lower side of the tray 20'a to a position higher than the tray wall portion 23, and the workpiece W is waited for being sent from the back side of the system 1. When the workpiece is fed, the roller 11 is driven and received (Fig. 5 (〇). If the workpiece W is located directly above the tray 20'a, the roller 11 is stopped and lowered. Thereby, the workpiece is returned. W is placed on the tray 20'a to be transported to the downstream stroke. Further, in the operation of receiving the workpiece w, the operation of cutting the next tray can be performed in parallel in the first 埠3a. In addition, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the technical idea of the present invention. The taking means is not limited to the slide table 10, if If the workpiece W can be taken out, any means can be used. The 'empty tray can also be temporarily moved to the third 埠3c' as in the above embodiment, and can be temporarily stored in the second i 阜 3b, or can be made into the sliding table 1 〇Retracted from the state of the second i 3b. This is because the workpiece sent by the first i 3a is combined according to the processing stroke, and there is a case where it does not return after reaching the other place. In this case, the empty tray Will gather in the second 埠3 b, but make the second 埠3b Alternatively, the slide table 10 may be moved only between the first 埠3a and the second 埠3b, and the third 埠3c may be provided with another slide table. [Simplified Schematic] FIG. 1 is an implementation Fig. 2 is a perspective view of the tray. Fig. 3 is an explanatory view when the tray is lifted. Fig. 4 is an explanatory view when the tray is horizontally moved by a roller. Fig. 5(a)~ (f) is a schematic diagram illustrating a series of processes of the pallet transport system. Fig. 6 (a) to (d) are explanatory views of the process of cutting out the destination tray by the tray group. Fig. 7 (a) (b) is a roll The illustration of the sub-section is a view of the tray transport system viewed from the left side. -12- (9) (9) 1344932 Figure 8 is a diagram of the pallet transport system described in Patent Document 1. Figure 9 is the system of Figure 8. Top view. [Main component symbol description] 1 : Pallet transport system 2 : Pillar 3 : 埠 3a : 1st b 3b : 2nd 埠 3c : 3rd : 4 : Storage means 5 : Lifting part 6 : Beam part 7 : Chuck Part 7 a : Lower chuck 7 b : Upper chuck 9 : Roller 9a : Roller conveyor 9b : Guide rail 1 滑动: Slide table 1 1 : Roller 20 : Pallet 2 1 : Crossbar 2 2 : Bottom-13 - 1344932 ( 10) 2 3 : Wall 24 : Support 25 : Flange 30 : Pallet group

Claims (1)

1344932 Ο) 十、申請專利範圍 1. —種托盤搬運系統,其特徵爲: 設有: 將載置有工件的托盤層積保管之手段; 由被保管的托盤群中切出任意位置的一片托盤之手段 ;及 由退避位置進入至已被切出的托盤之下方,由前述托 盤取出工件之手段。 2. 如申請專利範圍第1項之托盤搬運系統,其中, 具有取出了工件之空的托盤之保管手段, 前述取出手段之退避位置在平面視角是與前述保管手 段重疊。 3. 如申請專利範圍第1項之托盤搬運系統,其中, 將前述取出手段兼作爲在空的托盤接收工件之際的接收手 段。 -15-1344932 Ο) X. Patent application scope 1. A pallet handling system, characterized in that: a means for storing a tray on which a workpiece is placed is stacked; and a tray of any position is cut out from the group of trays to be stored And means for removing the workpiece from the tray by entering the tray below the cut-out position. 2. The pallet transport system according to claim 1, wherein the retreat position of the take-out means overlaps the storage means in a plane view angle. 3. The pallet handling system of claim 1, wherein the take-out means is also used as a receiving means for receiving a workpiece on an empty tray. -15-
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