JP5851728B2 - Stacking equipment - Google Patents

Description

  The present invention relates to a stacking apparatus that stacks articles while conveying articles.

  As a stacking apparatus for stacking articles being conveyed, there is an apparatus (a method for stacking and feeding block pieces) disclosed in Patent Document 1. The apparatus disclosed in Patent Document 1, for example, as shown in FIG. 8 attached to Patent Document 1, is a transfer for input in which a block piece (A) is input from an oblique rear side to a main transfer stand (1a). A plurality of devices (2) are provided, and a merging point of the upstream transfer device (2) with respect to the main transfer table (1a), followed by a main transfer table (1a) of the downstream transfer device (2), An auxiliary transfer table (1c) that is parallel to the main transfer table (1a) after rising from the upper surface of the main transfer table (1a) toward the downstream side is provided between the junction points. Therefore, the block piece (A) transported by the upstream transfer device (2) moves upward along the auxiliary transfer table (1c) provided downstream thereof, and then the main transfer table (1a). ) Move horizontally above.

  An auxiliary transfer stand is not provided downstream of the junction with the main transfer stand (1a) of the transfer device (2) provided at the most downstream. Therefore, the block piece (A) conveyed by the most downstream transfer device (2) moves on the main transfer table (1a) as it is.

  Therefore, the block piece (A) supplied to the main transfer table (1a) by each transfer device (2) moves on the auxiliary transfer table (the block piece supplied from the most downstream is the main transfer table), It will be in the state which overlapped up and down. When a plurality of auxiliary transfer tables (1c) are provided, the downstream end position of the auxiliary transfer table (1c) is terminated on the near side as the upstream one.

  As a result, the block piece (A) moving on the auxiliary transfer table (1c) falls from the downstream end of the auxiliary transfer table (1c) and is dropped and supplied onto the block piece (A) moving below the block piece (A). The By repeating this, the block pieces transported on each auxiliary transfer table (1c) in a state where they are overlapped in the vertical direction sequentially ride on the block pieces moving downward, and finally, the main transfer table All the block pieces that have moved (1a) are stacked. Reference numerals in parentheses are those given in Patent Document 1.

Japanese Patent No. 2942855

  The apparatus disclosed in the above-mentioned patent document 1 is dropped in order from the upper block pieces supplied from the upstream side and added to the lower block pieces. Damage to the side block pieces is increased. That is, in the configuration in which the three block pieces shown in FIG. 11 of Patent Document 1 are stacked, the block piece (A) that first moved the uppermost auxiliary transfer stand (1c) dropped and moved down one by one. It rides on the block piece (A) which moves the auxiliary transfer stand (1c), and it becomes the state where two overlapped. Thereafter, on the auxiliary transfer stand (1c), which is one lower level, the two block pieces (A) move while being overlapped. Then, when the two overlapping block pieces reach the downstream end of the moving auxiliary transfer table (1c), they fall from there and ride the main transfer table (1a) on the moving block piece. At this time, since the two falling block pieces are in a state of being overlapped, the load of the two block pieces is applied to the block moving on the main transfer table. Therefore, when the block pieces (articles) to be stacked are brittle confectionery pieces such as biscuits and crackers, there is a risk of causing breakage or damage. In particular, the effect becomes more prominent as the number of articles stacked increases.

  Therefore, there is a problem that even if it is a fragile article or the number of stacked articles increases, it is desired to stack the articles so as not to damage the articles.

In order to solve the above-described problems, the stacking apparatus of the present invention includes (1) an article receiving plate that constitutes a conveyance path for conveying articles, and a plurality of the arrangement receiving plates that are arranged above and below each other. A conveyance device having fingers for vertically aligning and feeding the articles on the article receiving plate, and dropping the article from the downstream tip on the article receiving plate and riding on the article located below; A stepped device to be stacked, the downstream end position of the article receiving plate on the upper stage side is configured to protrude downstream from the other article receiving plate located on the lower stage side, and at least the upper stage side The downstream end of the article receiving plate was a downward inclined surface . This transfer device corresponds to the second transfer device of the embodiment. The article receiving plate corresponds to the upper plate or the bottom plate of the second transport device of the embodiment.
(2) It is good to provide the baseplate which comprises the conveyance surface of the said articles | goods which fall from the said article receiving board, and to provide an upslope surface in the downstream of the said baseplate. (3) Of the article receiving plates disposed above and below, the downstream end of the article receiving plate positioned below may be horizontal.

  If comprised in this way, the goods which move on each goods receiving plate will fall in order from the lower stage side. When each article is dropped, only one is always dropped, and it is transferred to one article located under it or a plurality of articles already dropped and stacked. It is possible to prevent the article to be damaged from being damaged.

To be provided with a product supply device for supplying the articles to the article receiving plate in which a plurality arranged so as to overlap the previous SL vertically. The article supply device corresponds to the first transport device in the embodiment . Their to, assumes inventions described above, the article supply apparatus includes a plurality of conveyance paths having different heights for conveying articles in a plurality of rows, loading of the article receiving plate unloading end of each transport path It is advisable to place it facing the mouth. Here, disposing the carry-out end of the transport path opposite the carry-in port of the article receiving plate means that a predetermined positional relationship is established so that an article carried out from the carry-out end can move from the carry-in port of the article receiving plate to the article catch plate side. It means that you are facing each other. Therefore, the relative positional relationship between the conveyance path of the article supply apparatus and the conveyance path of the conveyance apparatus constituted by the article receiving plate is arbitrary, and may be orthogonal to each other as in the embodiment, or at a predetermined angle. May be crossed diagonally, or may be arranged on a straight line. If it does in this way, the article which moves each conveyance path of an article supply device can be supplied to the article receiving plate of a conveyance device one by one.

  Also, the first transport device having a plurality of transport paths with different heights for transporting the articles in a plurality of rows and the unloading side of the first transport device are arranged so that the transport directions intersect and receive the goods. And a second transport device that transports in a row in a row, wherein the second transport device has an upper plate disposed at a position facing the carry-out end of the plurality of transport paths, and an article on the upper plate. It is good to comprise so that it may project on the downstream side rather than the other upper board located in the lower stage side.

(4) Conveyance provided with a plurality of article receiving plates that constitute a conveying path for conveying articles, and a finger that vertically aligns and pushes the articles on the respective article receiving plates disposed above and below the plurality of article receiving plates arranged so as to overlap each other. A stepped device that is stacked when the article falls from a downstream tip on the article receiving plate and rides on an article located below, the article receiving plate on the upper stage side The downstream end position of the product is configured to project further downstream than other article receiving plates located on the lower side, and the article supply device supplies articles to each of the plurality of article receiving plates arranged so as to overlap vertically The article supply apparatus includes a plurality of conveyance paths having different heights for conveying articles in a plurality of rows, and the delivery end of each conveyance path is disposed opposite to the carry-in entrance of the article receiving plate, and the article supply Stores multiple articles in a stacked state on the upstream side of the device A hopper device, and the article supply device is a finger conveyor provided with a pushing finger that takes out and conveys an article stored in the hopper device, and has a function of increasing / decreasing the speed of the pushing finger, The acceleration / deceleration control is performed at a low speed immediately before contacting the article in front of the hopper device, and the pushing finger comes into contact with the article in the low speed state and thereafter performs an operation of increasing the speed. Good. Low speed also includes zero speed. In this way, even if the article is fragile and fragile, when the pushing finger contacts the article, it is in a low speed state, so that the impact at the time of contact is small and hardly broken. And since it accelerates after that, articles | goods can be taken out quickly.

(5) Conveyance provided with a plurality of article receiving plates that constitute a conveying path for conveying articles arranged in a vertical direction, and fingers that push the articles on the respective article receiving plates arranged above and below them vertically. A stepped device that is stacked when the article falls from a downstream tip on the article receiving plate and rides on an article located below, the article receiving plate on the upper stage side The downstream end position of the product is configured to project further downstream than other article receiving plates located on the lower side, and the article supply device supplies articles to each of the plurality of article receiving plates arranged so as to overlap vertically The article supply apparatus includes a plurality of conveyance paths having different heights for conveying articles in a plurality of rows, and the delivery end of each conveyance path is disposed opposite to the carry-in entrance of the article receiving plate, and the article supply The apparatus includes a pushing finger for conveying the article. A finger conveyor having a function to increase / decrease the speed of the pushing finger, and the acceleration / deceleration control becomes a low speed when it reaches the carry-out end, and then increases the speed to send the article to the article receiving plate. It may be supplied to the (conveyor). In this way, the article starts moving slowly from the article supply device to the conveying device (article receiving plate), so that the impact when the conveying path is changed is reduced, and the article is damaged or damaged. In addition to preventing this, it is possible to speed up and complete the transfer quickly after the front end of the article has entered the second conveying device side.

  The arrangement pitch of the plurality of conveyance paths may be different from the finger pitch in the finger conveyor of the conveyance device. This is preferable because the timing at which articles are carried out and supplied from the respective conveyance paths to the second conveyance device is shifted.

(6) Conveyance provided with a plurality of article receiving plates, which are arranged so as to overlap each other, and which constitute a conveying path for conveying the articles, and fingers for pushing the articles on the respective article receiving plates arranged above and below them vertically. A stepped device that is stacked when the article falls from a downstream tip on the article receiving plate and rides on an article located below, the article receiving plate on the upper stage side The downstream end position of the product is configured to project further downstream than other article receiving plates located on the lower side, and the article supply device supplies articles to each of the plurality of article receiving plates arranged so as to overlap vertically The article supply apparatus includes a plurality of conveyance paths having different heights for conveying articles in a plurality of rows, and an unloading end of each conveyance path is arranged opposite to a carry-in port of the article receiving plate , The transport path is located upstream of the transport device The upstream end of the article receiving plate is opposed to the carry-out end of the corresponding conveying path, and no other article receiving plate is arranged below the upstream end. It is preferable that a predetermined space is formed in the space. In this case, when the article supply device is a finger conveyer or the like, it is preferable because a space for reversing the direction of the pushing finger U-turn is secured.

  In the present invention, even if it is a brittle article or the number of stacked articles increases, the articles can be stacked so as not to damage the articles.

It is a top view which shows suitable one Embodiment of the stacking apparatus which concerns on this invention. It is the front view. It is the side view. It is a front view which expands and shows the carrying-in side site | part of the 2nd conveying apparatus. (A) is the figure which expanded the part shown by A in FIG. 3, (b), (c) is a figure which expands and shows sectional drawing of the part shown by B, C in FIG. 2, respectively. 1 is a front view showing a hopper device 10. FIG. FIG. 3 is a front view showing a first transfer device 20.

  FIG. 1 shows a plan view in which a mechanism of a hopper portion located on the most upstream side in a preferred embodiment of a stacking apparatus according to the present invention is separated, and FIG. 2 is a front view in which the mechanism of the hopper portion is omitted. FIG. 3 shows a side view of a state in which the hopper portion mechanism is incorporated.

  The stacking apparatus 1 according to the present embodiment conveys flat articles 2 and stacks a predetermined number (here, six) of articles 2 during the conveyance. The article 2 to be stacked in the present embodiment is relatively fragile, such as a cracker, but the material is not limited.

  And the stacking apparatus 1 of this embodiment is the hopper apparatus 10 arrange | positioned in the uppermost stream side, and the flat article | item 2 currently stored by the hopper apparatus 10 in the lamination | stacking state in the up-down direction from the bottom 1 A first transport device 20 that takes out and transports the sheets one by one, and a second transport device 30 that is arranged on the unloading side of the first transport device 20 and stacks articles while transporting articles. The hopper device 10 and the first transport device 20 transport the articles 2 in a six-row column. The conveyance direction of the first conveyance device 20 and the conveyance direction of the second conveyance device 30 are orthogonal to each other, and the articles 2 conveyed in six rows on the first conveyance device 20 are sequentially transferred to the second conveyance device 30. Thus, the articles 2 are transported in a line on the second transport device 30. As a result, the articles 2 to be conveyed in the six-row column are rearranged from the six rows to one row, and the articles are conveyed. Further, when the articles 2 are supplied from the first transfer device 20 to the second transfer device 30, the supply height is varied in each row. Thereby, the articles moving on the second transfer device 30 move on the six transfer lines having different heights that overlap in the vertical direction, and are stacked using the difference in height. The specific configuration is as follows.

  As shown in FIG. 3, the hopper device 10 is connected to a gently downwardly inclined first conveyance path 11 installed at a predetermined upper position, and a downstream end of the first conveyance path 11, and the path is directed downward. A second transport path 12 to be changed is provided. The first transport path 11 and the second transport path 12 are provided in six rows in parallel. The article 2 is moved in a state where the front and rear articles 2 are in contact with each other in a stand-up state where the article 2 stands in the first conveyance path 11.

  The path of the second conveyance path 12 has a curved portion 12 ′ and a vertical portion 12 ″ following the curved portion 12 ′. The article 2 that has moved in the first conveyance path 11 in a frame shape passes through the section of the curved portion 12 ′. Thus, the posture of the article 2 gradually falls along the curved portion 12 ', and finally becomes horizontal. The article 2 that has become horizontal is naturally in the section of the vertical portion 12 ". Fall. Actually, the articles 2 in each row move from the inside of the first transport path 11 in a state where they are in contact with the front and back, so that they are stored in a vertically stacked state in the vertical portion 12 ″. Then, when the posture is changed so as to fall down from the frame standing state, a guide member is arranged at an appropriate position of the second transport path 12 so that the article 2 does not jump out to the outside. 1 and 6, the path 12 includes a pair of left and right side wall guides 12a, and the movement of the article 2 is restricted by positioning the article 2 between the pair of side wall guides 12a. The front end (front side) 12a ′ of the side wall guide 12a is bent inwardly, so that the article 2 disposed between the pair of side wall guides 12a is also in contact with and close to the front end 12a ′, and the outside. Popping out is suppressed

  Further, a guide bar 12c is erected in the center on the tip 12a ′ side of the pair of side wall guides 12a in the section of the vertical portion 12 ″ so as to extend vertically, and jumps out of the space between the tips 12a ′ of the side wall guides 12a. The guide rod 12c is attached to the tip of the L-shaped plate 12b, and the base end of the L-shaped plate 12b is connected to the machine frame 1 on the back side. 12d, the guide rod 12c is connected to a pair of side wall guides as shown by solid lines in FIGS. The position of the operation state located in the middle between the front ends 12a 'of 12a and the position of the maintenance state that opens the space between the front ends 12a' of the pair of side wall guides 12a as shown by the two-dot chain line in FIG.

  In FIG. 1, the hopper device 10 is drawn while being shifted to the outside of the first transport device 20, but in actuality, as shown in FIG. Is done.

  The lower ends of the vertical portions 12 ″ of the six second transport paths 12 are opposed to each other in the vicinity of the upper portion of the transport surface of the first transport device 20, as shown in FIGS. The lower part of the second conveying path 12 (vertical portion 12 ″) is open, and the article 2 that has moved in the vertical portion 12 ″ is supplied to the conveying surface of the first conveying device 20 from the lower opening portion. Between the lowermost end of the second conveyance path 12 and the conveyance surface of the first conveyance device 20, a predetermined margin shorter than the one sheet is added to the distance i corresponding to the thickness of one sheet of the article 2. Further, the tip 12a ″ at the lower end of the side wall guide 12a is opened without being bent inward. Furthermore, a hook-shaped guide plate 12e that is inclined downward toward the front end (front) is provided on the front end side of the lower end of the side wall guide 12a (front in the transport direction of the first transport device 20). Between this guide plate 12e and the conveyance surface of the first conveyance device 20, there is an interval through which only one article 2 can pass. As a result, the articles 2 are carried out and supplied one by one from the lower end of the second transport path 12 (vertical portion 12 ″) to the first transport device 20 side.

  As described above, a large number of articles 2 are stacked and stored in the second conveyance path 12, particularly the vertical portion 12 ″, and conveyed by the first conveyance device 20 one by one from the lowermost end. Since it is supplied to the path, the second transport path 12 (vertical part 12 ″) constitutes a hopper part. That is, in this embodiment, six hopper parts are arranged upright and aligned.

  Further, in the present embodiment, as shown in FIG. 6, the lower end positions of the respective second transport paths 12 (vertical portions 12 ″) serving as the six hopper portions are gradually shifted in the height direction. In Fig. 6, the left side is the highest position toward the right, and is gradually set to a lower position as it goes to the right, and the amount of deviation of this height position is set at equal intervals, and the length corresponding to the thickness (height) of the article 2 (In fact, the length is a length obtained by adding a predetermined margin to the distance.) The second transport path (left side in FIG. 6) that sets the lower end to a high position is the final 2 is located upstream of the conveying direction of the conveying device 30.

  The 1st conveying apparatus 20 is a finger conveyor apparatus. As shown in FIG. 3 and the like, a push finger 23 is attached to an endless chain 22 that spans a sprocket 21 that is disposed at an appropriate position. The endless chain 22 (pushing finger 23) turns in a vertical plane. Furthermore, as shown in FIG. 1 etc., the 1st conveying apparatus 20 is provided with six conveyance paths. This conveyance path is constituted by a pair of left and right guide rails 24. That is, this pair of guide rails 24 receives both sides of the article 2. Then, the push finger 23 moves through the space formed between the pair of guide rails 24, and the article 2 supported between the guide rails 24 is pushed by the push finger 23.

  5A, the upper end of the pushing finger 23 is set to be lower than the upper surface of the article 2 on the first conveying device 20 (guide rail 24). As a result, only one article 2 located in the lowermost layer among the many articles 2 stacked in the second conveyance path 12 (vertical portion 12 ″) receives the conveyance force from the push finger 23 and is vertical. It is pushed out from the section 12 ″ and moved on the first transport device 20.

  The above-mentioned endless chain 22, the pushing fingers 23 attached thereto, the pair of guide rails 24, and the like are also arranged for six sets in accordance with the hopper device 10. Moreover, as shown in FIG. 7, the six conveyance paths of the 1st conveying apparatus 20 comprised with the guide rail 24 used as a pair also changed the height position.

  Further, in the present embodiment, the first transport device 20 transmits the output of the drive motor to the sprocket 21 via the elliptical gear 25. Thereby, the pushing finger 24 turns while increasing / decreasing. By appropriately setting the diameter and eccentricity of the elliptical gear 25 and the length of the transport path of the first transport device 20, the push finger 23 can be used as the hopper device 10 (the vertical portion 12 ″ of the second transport path 12). Control is performed so that the speed is zero or minimum immediately before contacting the article 2 before and then gradually increases, so that the pushing finger 23 comes into contact with the article 2. The impact applied to the article 2 during the operation is reduced to prevent the article 2 from being damaged or damaged, and after contact, the speed is increased to quickly take out from the hopper device 10 and move over the first conveying device 20. To move.

  Further, the pushing finger 23 that has passed through the hopper device 10 (vertical portion 12 ″) gradually reaches the maximum speed before reaching the unloading end of the first conveying device 20 (the second conveying device 30 in the next stage), and then gradually. Control is performed so that the speed is reduced to zero or minimum when the speed reaches the carry-out end, and then the speed is gradually increased, whereby the article 2 is moved from the first transport device 20 to the second speed. By moving slowly at the beginning of the transfer to the transfer device, the impact when the transfer path changes is reduced, preventing the article 2 from being damaged or damaged, and the front end of the article 2 being the second transfer device. After getting on the 30th side, the speed is increased and the transfer is completed quickly.

  Furthermore, as will be described later, the second transport device 30 is also a finger conveyor, but the finger pitch in the second transport device 30 is different from the arrangement pitch of the six rows of transport paths of the first transport device 20. Specifically, the finger pitch of the second transport device 30 is increased. That is, in the case of a transport system that transfers an article by changing the arrangement from a plurality of upstream rows to a single downstream row between transport devices that are orthogonal in this type of transport direction, each upstream transport device is Each moving article is unloaded at the same time, and transferred to a downstream transport device. Therefore, when the downstream conveying device is a finger conveyor, the finger pitch of the finger conveyor is matched with the arrangement pitch of the conveying path of the upstream conveying device. When the pitches are matched in this way, when the pushing fingers are decelerated and decelerated as in this embodiment, the pushing fingers 23 in each row are accelerated and become the highest speed, and then decelerated and the speed becomes zero or the like. Since a speed change such as that occurs simultaneously in each column, the vibrations applied to the apparatus overlap and become undesirably large. This becomes more prominent as the number of columns increases.

  On the other hand, in the present invention, the pitch between the two is made different, and accordingly, the timing of carrying out the articles 2 from each row of the first conveying device 20 is shifted. Specifically, articles are unloaded in order from the row upstream of the second carrying device 30 in the carrying direction (the left row in FIGS. 1 and 7) and supplied to the second carrying device 30. In order to perform such processing, the phases of the push fingers 23 of the finger conveyor constituting each row of the first transport device 20 are shifted for each row. Further, an elliptical gear 25 for controlling acceleration / deceleration is provided in each row so that the pushing finger 23 increases / decreases at a predetermined position in each row, and cooperates with the sprockets 21 in each row. As shown in FIG. 7, the elliptical gears 25 in each row are attached to the same rotary shaft 27, and the elliptical gears 25 rotate together as the rotary shaft 27 rotates. Since the phase of each elliptical gear 25 (for example, the angle of the major axis) is shifted, the timing at which the pushing fingers 23 in each row increase / decrease is shifted for each row, and the pushing fingers in each row have the above-mentioned desired A movement (an operation in which the speed becomes 0 or minimum when the hopper device 10 is reached immediately before reaching the carry-out end and then increases) is performed. The rotary shaft 27 is linked to a drive motor (not shown) via a power transmission gear 28 attached to one end of the rotary shaft 27, and operates each row based on a single drive motor.

  As described above, in this embodiment, since the phase of the push finger 23 of each row of the first transport device 20 composed of the finger conveyor is shifted, the timing of increase / decrease (speed change) of the push finger 23 of each row is different. The vibration given to the entire apparatus due to the acceleration / deceleration is small and is canceled out in some cases, so that stable operation can be performed without causing squeaking in the apparatus.

  As shown in FIG. 2 etc., the 2nd conveying apparatus 30 is a finger conveyor, receives the articles | goods of each row | line supplied from the 1st conveying apparatus 20, stacks articles | goods while conveying them, and stacks them. . FIG. 4 is an enlarged view of the carry-in portion and the stacking mechanism portion on the upstream side in the transport direction, which are also the main parts of the second transport device 30. As shown in an enlarged view in FIG. 4, first to fifth upper plates 31 to 35 for receiving articles carried out and supplied from the first conveying device 20 and a bottom plate 36 constituting a main conveying path are provided. . The height positions of the first to fifth upper plates 31 to 35 and the bottom plate 36 are matched with the respective height positions of the conveyance path of the first conveyance device 20. That is, the first upper plate 31 is disposed so as to face and cross the carry-out end position of the leftmost conveyance path in FIGS. 1 and 7 which is the highest conveyance path. The second upper plate 32 is disposed so as to face and cross the carry-out end position of the second conveyance path from the left in FIGS. Similarly, the third upper plate 3, the fourth upper plate 34, and the fifth upper plate 35 are respectively opposed to the carry-out end positions of the third, fourth, and fifth conveyance paths from the left in FIGS. Arrange so that they intersect. The bottom plate 36 is disposed so as to face and intersect the carry-out end position of the rightmost conveyance path in FIGS. 1 and 7 which is the lowest conveyance path.

  Since the opposing conveyance path and the heights of the first to fifth upper plates 31 to 35 and the bottom plate 36 are matched, and the upper plate is arranged in the vicinity of the carry-out end of the conveyance path of the first conveyance device 20, The article carried out of the conveyance path is smoothly transferred to the first to fifth upper plates 31 to 35 and the bottom plate 36 corresponding to the above speed control effect.

  On the other hand, a pushing finger 43 is attached to an endless chain 42 that is stretched over a sprocket 41 that is disposed at a predetermined position in the front-rear direction of the second transport device 30. As described above, the finger pitch of the push finger 43 is set to be longer than the arrangement pitch of the conveyance path of each row of the first conveyance device 20.

  5B, the first to fifth upper plates 31 to 35 and the bottom plate 36 are opened at the center in the width direction orthogonal to the transport direction. The opened part overlaps in the vertical direction and is formed so as to extend along the transport direction. The pushing finger 43 is positioned so as to penetrate the opened part in the vertical direction. At 43, the articles 2 placed on the first to fifth upper plates 31 to 35 and the bottom plate 36 are conveyed all at once. Therefore, the articles 2 placed on the first to fifth upper plates 31 to 35 and the bottom plate 36 are pushed by the pushing fingers 43 so that the relative positions between the articles are aligned (overlapping in the vertical direction).

  Further, the upstream end portions of the first to fifth upper plates 31 to 35 and the bottom plate 36 are positioned at the carry-out ends of the transport paths of the corresponding first transport devices 20 and do not extend to the upstream side more than necessary. Thereby, no other upper plate exists under the first to fifth upper plates 31 to 35 and the bottom plate 36, and a predetermined space is secured. Therefore, for example, as shown in FIG. 5C, in the carry-in side portion of the second upper plate 32, a space is formed without the third to fifth upper plates 33 to 35 and the bottom plate 36 below. Therefore, the pushing finger 23 of the first conveying device 20 that has supplied the article 2 to the second upper plate 32 moves in the space and makes a U-turn while overturning its posture. That is, the pushing finger 23 does not make contact with another upper plate or the like during the direction change in which the feeding finger 23 makes a U-turn and moves backward.

  The downstream end positions of the first to fifth upper plates 31 to 35 are longer than the other upper plates positioned on the lower side. Thereby, the articles | goods 2 which move on the 1st-5th upper plates 31-35 fall in order from the lower side. That is, in the six articles 2 conveyed by the same push finger 43, the second article that has been moved on the fifth upper plate 35 first falls and moves on the bottom plate 36 located immediately below. Transfer onto the article. In this state, the articles are placed one by one on the first to fourth upper plates 31 to 34, and the two articles are stacked on the bottom plate 36 and are pushed by the pushing finger 43.

  Next, the third article from the bottom that has moved on the fourth upper plate 34 falls, and transfers onto the stacked two articles that have moved on the bottom plate 36 located immediately below. In this state, the articles are placed one by one on the first to third upper plates 31 to 33, and the three articles are stacked on the bottom plate 36 and are pushed by the pushing finger 43.

  Thereafter, the above process is sequentially repeated, and the third article from the top that has moved on the third upper plate 33 and the second article from the top that has moved on the second upper plate 32 are sequentially dropped. 1 The top article that has moved on the upper plate 31 falls, and the stacking process in which six articles are stacked is completed. Thereafter, the stacked product group is pushed by the pushing fingers and supplied to the packaging machine main body and the like at the next stage.

  When each article is dropped, only one piece is always dropped, and it is transferred to one article or a group of stacked articles placed underneath, so that the article located on the lower side that receives the dropped article is damaged. I don't get it.

  Further, in the present embodiment, the up-tilt surface 36 a is formed at a predetermined position of the bottom plate 36 that constitutes the transport surface on the second transport device 30. The predetermined position for forming the upward inclined surface 36a is a fixed section extending from the downstream end of the fifth upper plate 35 and the fourth upper plate 34 to the downstream side (near the downstream end position of the third upper plate 33). . Accordingly, the article on the bottom plate 36 that receives articles falling from the fifth upper plate 35, the fourth upper plate 34, and the third upper plate 33 is moved upward along the upward inclined surface 36a. Becomes shorter and the impact applied to both articles when changing is made as small as possible.

  Similarly, the downstream ends of the first upper plate 31 and the second upper plate 32 are made downward inclined surfaces 31a and 32a, and the falling distance of articles falling from the first upper plate 31 and the second upper plate 32 is shortened. Here, the first upper plate 31 and the second upper plate 32 are provided with the downward inclined surfaces 31a and 32a. However, the present invention is not limited to this, and the upward inclined surface 36a of the bottom plate 36 is further extended. Also good. However, if the upward inclined surface 36a is extended in such a manner, the height of the subsequent conveying surface is increased. Therefore, it is preferable to provide the downward inclined surface at the tips of some upper plates on the upper side as in this embodiment. .

  On the contrary, it is possible to adopt a mode in which a down slope is provided at the downstream end of each upper plate without providing an up slope on the bottom plate. In this case, in particular, the upper first and second top plates Therefore, it is preferable to use the ascending inclined surface 36a and the descending inclined surfaces 31a and 32a together as in the above-described embodiment.

  In the above-described embodiment, the moving speed of the pushing finger of the first transport device 20 is controlled to increase / decrease using an elliptical gear. Also. It may be one that operates at a constant speed. In addition, the finger pitch of the pushing fingers of the second transport device 30 may be equal to the arrangement pitch of the transport path of the first transport device 20.

DESCRIPTION OF SYMBOLS 1 Stacking apparatus 2 Article 10 Hopper apparatus 20 1st conveying apparatus 30 2nd conveying apparatus

Claims (7)

There is a conveying device provided with a plurality of article receiving plates that constitute a conveying path for conveying articles, and a finger that vertically aligns and pushes the articles on each article receiving plate arranged above and below. And a stepped device that is stacked by dropping the article from a downstream tip on the article receiving plate and riding on the article located below,
The downstream end position of the article receiving plate on the upper stage side is configured to protrude further downstream than other article receiving plates located on the lower stage side ,
A stacking apparatus characterized in that at least the downstream end of the article receiving plate on the upper side is a downward inclined surface. Comprising a bottom plate constituting a conveying surface of the article falling from the article receiving plate,
The stacking apparatus according to claim 1, wherein an upward inclined surface is provided on the downstream side of the bottom plate . The stacking apparatus according to claim 2, wherein a downstream end of the article receiving plate positioned below among the article receiving plates arranged above and below is leveled . A plurality of article receiving plates that are arranged so as to overlap vertically, and that constitute a conveyance path for conveying articles;
An article having a conveying device having fingers for vertically aligning and feeding articles on each article receiving plate arranged above and below the article, the article falling from a downstream tip on the article receiving plate, and positioned below A stepped device that is stacked by riding on
The downstream end position of the article receiving plate on the upper stage side is configured to protrude further downstream than other article receiving plates located on the lower stage side ,
E Bei an article supply device for supplying the articles to the article receiving plate in which a plurality arranged so as to overlap in the up and down,
The article supply apparatus has a plurality of conveyance paths having different heights for conveying articles in a plurality of rows,
Disposing the carry-out end of each conveyance path opposite to the carry-in port of the article receiving plate ,
A hopper device that stores a plurality of articles in a stacked state on the upstream side of the article supply apparatus,
The article supply device is a finger conveyor provided with a pushing finger that takes out the article stored in the hopper device and conveys the article on the conveying path, and has a function of increasing / decreasing the speed of the pushing finger,
In the acceleration / deceleration control, the speed is reduced immediately before contacting the article in front of the hopper device, and the pushing finger is brought into contact with the article in the low speed state, and thereafter the speed is increased. A stacking device characterized by that. A plurality of article receiving plates that are arranged so as to overlap vertically, and that constitute a conveyance path for conveying articles;
An article having a conveying device having fingers for vertically aligning and feeding articles on each article receiving plate arranged above and below the article, the article falling from a downstream tip on the article receiving plate, and positioned below A stepped device that is stacked by riding on
The downstream end position of the article receiving plate on the upper stage side is configured to protrude further downstream than other article receiving plates located on the lower stage side ,
E Bei an article supply device for supplying the articles to the article receiving plate in which a plurality arranged so as to overlap in the up and down,
The article supply apparatus has a plurality of conveyance paths having different heights for conveying articles in a plurality of rows,
Disposing the carry-out end of each conveyance path opposite to the carry-in port of the article receiving plate ,
The article supply device is a finger conveyor provided with a pushing finger for carrying the article, and has a function of increasing / decreasing the speed of the pushing finger,
The stacking apparatus is characterized in that the acceleration / deceleration control is performed at a low speed when reaching the carry-out end, and thereafter the speed is increased to supply the articles to the article receiving plate. A plurality of article receiving plates that are arranged so as to overlap vertically, and that constitute a conveyance path for conveying articles;
An article having a conveying device having fingers for vertically aligning and feeding articles on each article receiving plate arranged above and below the article, the article falling from a downstream tip on the article receiving plate, and positioned below A stepped device that is stacked by riding on
The downstream end position of the article receiving plate on the upper stage side is configured to protrude further downstream than other article receiving plates located on the lower stage side ,
E Bei an article supply device for supplying the articles to the article receiving plate in which a plurality arranged so as to overlap in the up and down,
The article supply apparatus has a plurality of conveyance paths having different heights for conveying articles in a plurality of rows,
Disposing the carry-out end of each conveyance path opposite to the carry-in port of the article receiving plate ,
The plurality of transport paths are arranged at higher positions as they are located upstream of the transport device,
The upstream end portion of the article receiving plate is opposed to the corresponding carry-out end of the transport path, and a predetermined space is formed below the upstream end portion without any other article receiving plate being disposed. A stacking device characterized by that. The stacking apparatus according to any one of claims 4 to 6, wherein at least a downstream end of the article receiving plate on the upper stage side is a downward inclined surface.

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