JP2007001591A - Carrying apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable speed-up of an accumulating process when a plurality of relatively flat articles received at a receiving position are held under a condition that they are accumulated forward and backward in a standing-up posture and are carried to a discharging position. <P>SOLUTION: A delivering apparatus 11 for delivering an article X fed in a horizontal posture from a carrying conveyor 2 at the receiving position P1 to an accumulating and carrying apparatus 12, is equipped with a delivering stands 24, ..., 24 which receive the article X, stands the article X by rotating it into the standing-up posture, and delivers the article X to a bucket 44 by moving it forward while it is put close to each other from the front side, and a driving means which rotates the delivering stands 24, ..., 24 synchronizing with the movement of the bucket 44 and moves them forward, and is composed of a pulley with teeth, a timing belt 28 with teeth and a motor 29. In addition, a rotary shaft 23 being a rotating support of the delivering stands 24 is positioned more upper side than the lower end part during standing-up posture. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a transport device that transports a relatively flat article received at a receiving position to a discharge position after stacking a predetermined number of articles in a standing posture, and belongs to the technical field of article transport.

  2. Description of the Related Art Conventionally, packaged articles such as snacks are sometimes packed in a cardboard box or a large bag and then shipped after being accumulated in a predetermined number in a predetermined posture. In recent years, it has been required to automate the integration process to improve productivity.

  In order to meet this requirement, for example, there are transport apparatuses disclosed in Patent Document 1 and Patent Document 2. First, as shown in FIG. 16, the conveying device disclosed in Patent Document 1 includes two buckets 110 and 110 that hold a plurality of flat articles X... X received at a receiving position P1 in a state where they are stacked back and forth. After changing the posture of the four endless chains 120 ... 120 for circulating and conveying the buckets 110, 110 from the receiving position P1 via the discharge position P2, and the article X supplied from the outside, the bucket 110 , 110 and a posture change device 130.

  In this case, the bucket 110 is composed of a plurality of bottom plates 111... 111 standing across a pair of endless chains 120, 120, of which the foremost and rearmost bottom plates 111, 111 have upright portions (not shown). A predetermined number of articles X ... X are held between the standing parts. The posture changing device 130 is provided on a first conveyor 131 having a vertical traveling surface and one side of the first conveyor 131. The traveling surface is horizontal at the upstream end and the traveling surface is at the downstream end. A second conveyor 132 that is twisted to be vertical, a third conveyor 133 that is disposed below the first and second conveyors 131 and 132 and has a horizontal running surface that extends to the receiving position P1, and first and second conveyors A pair of fourth and fifth conveyors 134 and 135 are connected to the downstream ends of the two conveyors 131 and 132 and disposed above the third conveyor 133 so that the running surfaces are vertical.

  As a result, the supplied articles X are changed from the horizontal posture to the standing posture while being conveyed in the direction indicated by the arrow by the posture changing device 130, and delivered one by one to the bucket 110 at the receiving position P1. When the number of delivered articles X reaches a predetermined number, the bucket 110 that holds these articles X... X in a state where they are stacked back and forth is conveyed to the discharge position P2 as indicated by an arrow.

  Next, as shown in FIG. 17, the transport device disclosed in Patent Document 2 includes a holding device 210 that holds a plurality of flat articles X... A pusher 220 for transferring the articles X... X held in the apparatus 210 to a discharge position (not shown) as indicated by an arrow, and a delivery apparatus 230 for delivering the articles X supplied in a horizontal posture from the upstream side to the holding apparatus 210. have.

  In that case, the holding device 210 includes round bar-shaped guide rails 211 and 211 arranged on the left and right in the conveying direction to hold the article X in a standing posture by engaging the upper ear portion of the standing article X. And a table 212 for supporting the article X from below. In addition, the delivery device 230 is provided on the traveling surface, and rotates and horizontally moves along a trajectory indicated by a one-dot chain line, thereby converting the article X from a horizontal posture to a standing posture and moving the article X to an arrow. A plurality of delivery tables 231... 231 for slightly moving in the direction are provided.

  Accordingly, the supplied articles X are changed from the horizontal posture to the standing posture by the delivery device 230 at the receiving position P1, and delivered to the holding device 210 one by one. The article X is supported by the guide rails 211 and 211 of the holding device 210 and the table 212. When the article X is accumulated in a predetermined number, it is pushed to the back by the pusher 220 and conveyed to the discharge position in close contact with each other. become.

JP 2003-212338 A JP-A-9-104526

  By the way, in the transport device described in Patent Document 1, a relatively long posture converting device 130 that converts a horizontal posture into an upright posture is required in advance, and the entire device is enlarged, and costs and installation space are limited. It becomes a problem. Further, on the downstream side of the posture changing device 130, the article X is held in a standing posture by being sandwiched between a pair of fourth and fifth conveyors 134 and 135 whose running surfaces are vertical. When the thickness of the product X varies, or when the packaging material of the packaged product X is different in terms of friction characteristics and flexibility, the standing posture may not be stably maintained.

  On the other hand, in the transport device described in Patent Document 2, since the article X in a horizontal posture is received by the delivery device 230 via the delivery table 231, the delivery table 231 is rotated to convert the horizontal posture into the standing posture. There are no problems such as an increase in the size of the transfer apparatus and the stability of the posture in the transfer apparatus described in Patent Document 1. However, at the time of posture change, as shown in FIG. 17, the delivery table 231 rotates largely with the mounting base on the traveling surface as a rotation fulcrum, so that the centrifugal force F ′ acting on the article X increases, and the article X becomes There is a problem that it may jump out from the delivery table 231. This problem becomes apparent when the accumulation process is speeded up, that is, when the rotation speed is increased to reduce the delivery interval of the article X to the holding device 210.

  Therefore, the present invention can increase the speed of the stacking process when a plurality of relatively flat articles received at the receiving position are held in a standing posture and transported to the discharge position. It is an object to provide a transport device.

  In order to solve the above problems, the present invention is configured as follows.

  In the first aspect of the present invention, a holding means for holding a plurality of articles received at a predetermined receiving position in a state where they are stacked back and forth, and the holding means are transferred from the receiving position via a discharge position. A transfer device having transfer means and transfer means for transferring an article supplied from the outside at the receiving position to the holding means, wherein the transfer means receives the articles one by one in a predetermined receiving posture and stands up. The article stands up by rotating to a posture, and moves forward to deliver the article while being sequentially packed in the holding means from the front side, and the delivery table in synchronization with the movement of the holding means And a drive means for moving the pedestal forward, and the pivot point of the delivery table is located above the lower end of the standing posture. The predetermined receiving posture indicates, for example, a horizontal posture or a posture slightly inclined from the horizontal posture in the rotation direction.

  Further, the invention according to claim 2 is the transfer device according to claim 1, wherein the driving means has a single function of rotating the delivery table and moving the delivery table forward. It is configured to be realized by a drive source.

  The invention according to claim 3 is characterized in that, in the transfer device according to claim 1 or 2, the rotation fulcrum is located substantially at the center of the delivery table.

  According to a fourth aspect of the present invention, in the transfer device according to the first or second aspect, the pivotal fulcrum is located near a lower end portion of the delivery table in a standing posture. To do.

  Further, the invention according to claim 5 is the transfer device according to claim 1 or 2, wherein the rotation fulcrum is located near an upper end portion of the delivery table in a standing posture. To do.

  The invention according to claim 6 is the conveying apparatus according to any one of claims 1 to 5, wherein the article supply direction to the delivery means and the article delivery direction from the delivery means to the holding means are provided. And a movement restricting wall for restricting the forward movement of articles on the delivery table is provided at the front end portion of the delivery table in the receiving posture.

  The invention according to claim 7 is the conveying apparatus according to any one of claims 1 to 5, wherein the article supply direction to the delivery means and the article delivery direction from the delivery means to the holding means are provided. Are configured to be orthogonal to each other, and at the rear end portion when the delivery table is in the receiving posture, a jump-out restricting wall that regulates the jump-out of articles from the delivery table is provided.

  The invention according to claim 8 is the transfer device according to any one of claims 1 to 7, wherein the holding means includes a foremost end holding member for holding the foremost end article at the front end. It is characterized by.

  The invention according to claim 9 is the transfer apparatus according to any one of claims 1 to 8, wherein the holding means is an article delivery by the delivery table at an interval of a substantially thickness dimension of the article. It is provided with the individual holding member which is provided in the shape which does not interfere with this delivery stand sometimes, and hold | maintains articles | goods separately.

  First, according to the first aspect of the present invention, when the delivery table receives the flat article from the upstream side by the driving means, the delivery stand is in the standing posture, and accordingly, the article is in the standing posture. Then, the delivery means transfers the received articles while sequentially packing the received articles to the holding means from the front side by the driving means, so that the articles are held in a standing posture by the holding means. Further, since the delivery table is operated by the driving means in synchronization with the operation of the holding means, the integration process is stabilized. Therefore, it is not necessary to add a relatively long posture changing device for raising the article to the conveying device as in the conventional case, and the entire device is not enlarged.

  Furthermore, unlike the conventional posture conversion device, since the running surface is not sandwiched between a pair of vertical conveyors at the downstream end and is in a standing posture, for example, when the thickness varies with the same type of packaged article, Alternatively, even when the packaging material of the packaged article is different in terms of friction characteristics and flexibility, the article can be stably placed in a standing posture without being affected by these.

  In addition, as shown in FIG. 18, the pivot fulcrum A1 is positioned above the lower end A2 of the delivery table A in the standing posture, so that the delivery table A is in the standing posture of the two-dot chain line from the horizontal posture of the solid line, for example. When turning in the direction of the arrow, the turning radius R becomes smaller than the turning radius R ′ when the turning fulcrum is positioned at the lower end A2 of the delivery table A as in the prior art. If the angular velocity is constant, the centrifugal force F acting on the article X is surely smaller than the centrifugal force F ′ when the rotation fulcrum is positioned at the lower end A2. Therefore, the article X is prevented from jumping out from the delivery table A at the time of posture change, and the accumulation process can be speeded up. In addition, the code | symbol G in a figure shows the gravity center position of the article | item X. FIG.

  According to the second aspect of the present invention, the function of rotating the delivery table and the function of moving the delivery table forward are realized by a single drive source. It is easy to execute and the device structure is simplified.

  Further, according to the inventions described in claims 3 to 5, characteristic effects can be obtained respectively. That is, according to the third aspect, since the pivot point of the delivery table is located at the approximate center of the delivery table, as can be easily understood from FIG. The force is minimized and a good pop-out prevention effect is exhibited.

On the other hand, according to the invention described in claim 4, as shown in FIG. 19, the rotation fulcrum A <b> 1 of the delivery table A is located near the lower end when the delivery table A is in the standing posture (the length L <b> 1 is For example, the delivery table A is rotated clockwise around the rotation fulcrum A1 to change the posture, and the delivery table A is revolved counterclockwise around another rotation fulcrum B. In this case, the delivery table A moves within a narrow height range _HL around the rotation fulcrum B as shown by a thick two-dot chain line. This is advantageous. The moving height range H _O of the delivery table A when the rotation fulcrum A1 is located at the approximate center of the delivery table A (the length L1 and the length L2 are substantially equal) is the moving height range H _L Greater than.

  According to the invention described in claim 5, as shown in FIG. 20, the pivot fulcrum A <b> 1 of the delivery table A is located closer to the upper end when the delivery table A is in the standing posture. For example, when rotating in the direction of the arrow from the horizontal posture of the solid line to the standing posture of the two-dot chain line, the centrifugal force F acts on the article X in a direction preferable for making the article X forward and standing. That is, this configuration is suitable for promptly delivering the article X to the holding means when the holding means is located in front of the delivery table A that has received the article X from the upstream side. In addition, the code | symbol G in a figure shows the gravity center position of the article | item X. FIG.

  According to the sixth aspect of the present invention, when the article supply direction to the delivery means and the article delivery direction from the delivery means to the holding means coincide with each other, Since the movement restricting wall for restricting the forward movement of the article on the delivery table is provided, the article supplied from the outside is reliably received and held by the delivery table.

  According to the seventh aspect of the present invention, when the article supply direction to the delivery means and the article delivery direction from the delivery means to the holding means are orthogonal to each other, the rear end of the delivery stand in the receiving posture Because the part is provided with a jumping-out restriction wall that restricts the jumping of articles from the delivery table, even when there is a concern about the jumping of articles due to the supply position to the delivery table, the jumping-out It is reliably prevented by the wall.

  Further, according to the invention described in claim 8, since the articles that are delivered to the holding means by the delivery table and are sequentially packed in the front side are reliably received by the foremost end holding member, the articles are in a standing posture on the holding means. Is held stably.

  According to the ninth aspect of the present invention, the articles are more stably held in the standing posture on the holding means by the individual holding members that hold the articles, and the articles are prevented from being overturned, such as domino tilting. The For example, a shape having a low height that does not contact each other, a shape that can cross each other, or the like is applied to the shape that does not interfere with the delivery table.

  The best mode for carrying out the present invention will be described.

  The conveying apparatus 1 according to the first embodiment shown in FIG. 1 and FIG. 2 is a carry-in conveyor 2 that conveys a relatively flat packaged article X such as snack candy supplied in a horizontal posture from the upstream side in the direction of arrow a. Is connected to the carry-in conveyor 2 to receive the article X and convert it into a standing posture, and accumulates a predetermined number and conveys it from the receiving position P1 to the discharging position P2 as indicated by an arrow b. As elements, it has a delivery device 11 and a stacking and conveying device 12 assembled in the main body case 1a. As shown in FIG. 2, a photoelectric thickness sensor 2 a for measuring the thickness of the article X is installed above the carry-in conveyor 2.

  The delivery device 11 has a function of receiving the articles X in a horizontal posture from the carry-in conveyor 2 one by one and converting them into a standing posture, and delivering the articles X while being sequentially packed in the front stacking and conveying device 12 from the front side.

  As shown in FIGS. 1 to 3, the delivery device 11 includes a pair of support plates 21 and 21 that are connected to each other and have protrusions that are located inside and outside the main body case 1 a and protrude in four orthogonal directions in a side view. The fixed shaft 22 penetrating the central portion of the support plates 21 and 21, the rotating shafts 23 ... 23 rotatably attached to the protrusions, and the delivery table 24 fixed to the rotating shafts 23 ... 23, respectively. ... 24 are provided. In this case, each rotary shaft 23 is located above the lower end portion of each delivery table 24 in the standing posture, more specifically, closer to the upper end portion in the standing posture of each delivery table 24 (closer to the rear end portion in the horizontal posture). ).

  Toothed pulleys 25, 26,... 26 are fixed to the fixed shaft 22 and the rotary shafts 23,. In that case, the number of teeth of the former pulley 25 is twice the number of teeth of the latter pulley 26. Then, the four guide pulleys 27 erected on the outer support plate 21 so as to be arranged in the vicinity of the central toothed pulley 25 on the central toothed pulley 25 and the surrounding four toothed pulleys 26. 27, a single toothed timing belt 28 is wound around as shown in the figure. 2 and 3, the pulleys 25, 26... 26 and the teeth of the timing belt 28 are omitted in order to avoid complication of the drawings.

  A motor 29 is installed relatively above the main body case 1a, and is fixed on the opposite side of the pulley 30 assembled to the output shaft of the motor 29 and the central toothed pulley 25 of the outer support plate 21. A timing belt 32 is wound around the pulley 31. As a result, the driving force of the motor 29 is transmitted to the outer support plate 21, and the support plate 21 rotates once in the direction of the arrow c around the fixed shaft 22, that is, the central toothed pulley 25, due to the aforementioned number of teeth. In the meantime, the four toothed pulleys 26... 26, that is, the rotary shafts 23... 23 rotate twice in the direction of the arrow d via the toothed timing belt 28.

  That is, when the motor 29 is driven, the delivery tables 24... 24 fixed to the rotary shafts 23... 24 rotate in the direction of the arrow d to realize a horizontal posture and a standing posture, and the arrows on the support plate 21. It moves forward, that is, in the direction of arrow b through rotation in the c direction. When the support plate 21 rotates once in the direction of the arrow c, the delivery tables 24... 24 return to their original positions and postures again. The rotation and the forward movement are executed in synchronization with the movement of the stacking and conveying apparatus 12 described later.

  As shown in FIG. 3 and FIG. 4, the delivery table 24 receives the article X supplied from the direction of the arrow a and delivers it in the direction of the arrow b perpendicular to the supply direction a. It has a mounting wall 24b standing up from the mounting surface 24a and a jump-out restricting wall 24c. The placement surface 24a is a portion on which an article X supplied in a horizontal posture from the direction of the arrow a is placed, and has a comb-teeth shape so as to be able to cross an accumulation transport device 12 described later. The mounting wall 24 b is a part coupled to the rotating shaft 23. The jump-out restricting wall 24c is located at the rear end portion of the delivery table 24 in the horizontal posture, that is, in the acceptance posture as shown in the figure, and the delivery table 24 rotates around the rotary shaft 23 as a fulcrum. This is a part that regulates the protrusion of the article X from the delivery table 24 when the surface 24a is converted from the horizontal posture to the standing posture in the forward direction, that is, in the direction of the arrow b.

  As shown in FIGS. 1 and 2, the stacking and conveying apparatus 12 stacks a predetermined number of articles X in a standing posture delivered from the delivery apparatus 11 in the posture, and the articles X. Transfer to the discharge position P2. The stacking and conveying apparatus 12 has a pair of upstream and downstream support shafts 41 and 41 rotatably supported in the main body case 1a. Each support shaft 41 includes four sprockets (upstream and downstream in FIG. 1). 42... 42 are assembled. And endless chains (only one is shown in FIG. 1) 43... 43 are wound around the corresponding sprockets 42.

  Buckets 44 and 44 are connected between the pair of inner endless chains 43 and 43 and between the pair of outer endless chains 43 and 43 to hold and transfer the articles X... . Each bucket 44 is composed of 14 bottom plates 45... 45 extending perpendicularly to the transport direction b, and each bottom plate 45 is connected to the endless chains 43, 43 via spacers (not shown). In this case, the front and rear bottom plates 45 and 45 are respectively L-shaped in a side view with the front end portion and the rear end portion standing up, and the upright portions 45a and 45a are combed in front view as will be described later. It has a tooth shape. Each bucket 44 holds twelve articles X ... X in a standing posture and in an accumulated state as shown in the figure.

  A pair of upstream and downstream motors (shown only on the upstream side in FIG. 2) 46 and 46 are installed below the main body case 1a, and the driving force of each motor 46 includes a pulley 46a assembled to the output shaft of the motor 46 It is transmitted to the support shaft 41 via a timing belt 47 wound around a pulley 41a assembled to the support shaft 41. That is, the driving force of one motor 46 is transmitted to the pair of inner sprockets 42, 42, and the driving force of the other motor 46 is transmitted to the pair of outer sprockets 42, 42, respectively. 43 travels independently, so that each bucket 44 is transported independently.

  Here, an intersecting structure of the delivery table 24 and the stacking / conveying device 12, that is, the bucket 44 will be described. As an example, as shown in FIG. 5, the delivery table 24 and the upright portion 45 a of the bottom plate 45 of the rearmost end of the bucket 44 that has completed the holding of the predetermined number of articles X... As shown in FIG. 6, the mounting surface 24a of the delivery table 24 and the upright portion 45a of the bottom plate 45 are formed in a comb-like shape as shown in the figure so as to pass through without interfering with each other.

  Next, the operation of the transport device 1 will be described.

  As shown in FIGS. 1 and 2, when the packaged article X in a horizontal posture is supplied from the upstream carry-in conveyor 2 in the direction of arrow a, the delivery table 24 of the delivery apparatus 11 receives one article X. Each is received, converted into a standing posture, and transferred to the bucket 44 of the stacking and conveying apparatus 12 in the direction of arrow b. In that case, since the thickness of the article X conveyed by the carry-in conveyor 2 is detected by the thickness sensor 2a, the article according to the thickness variation can be obtained by finely adjusting the transfer pattern of the bucket 44 based on the detection result. X can be accurately transferred to the bucket 44.

That is, as shown in FIG. 7A, for example, four articles X ₁ , X ₂ , X ₃ , X ₄ are already accumulated and held in a standing posture in a bucket 44 transferred in the direction of arrow b. the article X ₄ tail end is rigidly held from behind by the transfer table 24 ₁ of the preceding upright position. Also, a new article X ₅ is supplied in a horizontal position on the transfer table 24 ₂ the subsequent. The remaining delivery tables 24 ₃ and 24 ₄ are in the positional relationship shown in the figure. 7 clearly shows the operation of the delivery table 24 that rotates clockwise as indicated by the arrow d and revolves counterclockwise as indicated by the arrow c around the fixed shaft 22. 24 and each article X are given unique symbols.

Then, as shown in FIG. 7 (b), when the bucket 44 is transported further, in response to this, the transfer table 24 ₁ which has been held from behind the articles X ₄ of the rearmost end on the bucket 44 It begins to retreat upward, the transfer table 24 ₂ holding the articles X ₅ new approaches to the bucket 44 while starting to erect.

Then, as shown in FIG. 7 (c), transfer table 24 ₁ that contained the article X ₄ of the rearmost end of the bucket 44 is fully retracted upwardly, transfer table holding the new article X ₅ 24 ₂ approaches the bucket 44 while standing further.

Then, as shown in FIG. 7 (d), when approaching the transfer table 24 ₂ is further bucket 44 holding the articles X ₅ new article X ₅ is landed into the bucket 44 while standing, the article X ₄ Located behind.

Then, as shown in FIG. 7 (e), transfer table 24 ₂ is further erected, front the article X ₅ moves forward together with the erecting holds back of the article X ₅ which lands on the bucket 44 Pack in order. On the other hand, transfer table 24 ₃ subsequent to the transfer table 24 ₂ is becoming a horizontal posture by moving to listen to accept the next new article X.

Then, as shown in FIG. 7 (f), is held on the bucket 44 is retained behind the transfer table 24 ₂ is five articles X ₁ to X ₅ in the upright position, which is the horizontal position new article X ₆ is supplied to the transfer table 24 _3. As described above, the delivery device 11 of the transport device 1 is provided with the _four delivery tables 24 _{1 to} 24 _4, which can replace each other and receive the article X, so that the collection of the articles X at the receiving position P 1 is fast. Is achieved.

  When twelve articles X ... X are accumulated in the bucket 44 by repeating such an operation, the bucket 44 is transferred to the discharge position P2, and the other empty bucket 44 arrives at the receiving position P1. Thus, the articles X... X are discharged from the one bucket 44 at the discharge position P2, and the new articles X... X are supplied to the other bucket 44 at the receiving position P1, thereby speeding up the accumulation and discharge of the articles X. Is planned.

  As shown in FIGS. 5 and 6, the upright portion 45 a of the bottom plate 45 at the rearmost end of the bucket 44 and the placement surface 24 c of the delivery table 24 are formed in a comb-teeth shape, so that the bucket 44 When the twelfth article X is delivered, the upright portion 45a of the bottom plate 45 at the rearmost end of the bucket 44 crosses the placement surface 24a of the delivery table 24 and holds the back of the last article X. To do. Therefore, the bucket 44 that has completed the accumulation of the predetermined number of articles X... X can be quickly transferred from the receiving position P1 to the discharge position P2.

  In that case, the delivery table 24 first stands up after receiving the flat article X from the upstream side in a horizontal posture by the driving means comprising the toothed pulleys 25, 26... 26, the toothed timing belt 28, and the motor 29. Accordingly, the article X is converted from a horizontal posture to a standing posture. Then, the delivery table X delivers the received articles X to the bucket 44 in order from the front side by the driving means, so that the articles X are firmly held by the bucket 44 in a standing posture. Further, since the delivery table 24 operates in synchronization with the movement of the bucket 44 by the driving means, the accumulation process is stabilized. Therefore, it is not necessary to provide a relatively long posture changing device for raising the article X in the standing posture as in the conventional case, and the entire device does not increase in size.

  Further, unlike the conventional posture changing device, since the standing surface is not sandwiched between a pair of conveyors whose running surfaces are vertical at the downstream end, for example, when the thickness varies with the same type of packaged article X Alternatively, even when the packaging material of the packaged article X is different in terms of friction characteristics and flexibility, the article X can be stably placed in an upright posture without being affected by these.

  In addition, as shown in FIG. 8, the rotation shaft 23, which is the rotation fulcrum of the delivery table 24, is located above the lower end 24d when the delivery table 24 is in the upright position, so that the delivery table 24 stands up from the horizontal position. When rotating to a posture, if the rotation fulcrum is smaller than the rotation radius R ′ when the rotation fulcrum is positioned at the lower end 24d of the delivery table 24 as in the prior art, and the angular velocity during rotation is constant, The centrifugal force F acting on the article X is surely smaller than the centrifugal force F ′ when the rotation fulcrum is positioned at the lower end 24d. Therefore, the article X is prevented from jumping out from the delivery table 24 at the time of posture change, and the accumulation process can be speeded up. In addition, the code | symbol G in a figure shows the gravity center position of the article | item X. FIG.

  Further, since the function of rotating the delivery table 24 and the function of moving the delivery table 24 forward are realized by the motor 29 that is a single drive source, it is easy to execute both the operations in synchronization. At the same time, the device structure is simplified.

  Further, as shown in FIG. 8, the rotation shaft 23, which is the rotation fulcrum of the delivery table 24, is positioned closer to the upper end of the delivery table 24 in the standing posture (since the length L1 is greater than the length L2), When the delivery table 24 rotates from the horizontal posture to the standing posture, the centrifugal force F acts on the article X in a direction preferable for making the article X forward and the standing posture. That is, this configuration is suitable for promptly delivering the article X to the bucket 44 when the bucket 44 is located in front of and below the delivery table 24 that received the article X from the upstream side.

  In addition, the article supply direction a from the carry-in conveyor 2 to the delivery device 11 and the article delivery direction b from the delivery device 11 to the bucket 44 are orthogonal to each other. Since the jumping restriction wall 24c for regulating the jumping of the article X from the delivery table 24 is provided at the end portion, even when there is a concern about the jumping of the article X due to the supply position to the delivery table 24, The pop-out is reliably prevented by the pop-out restricting wall 24c.

  Since the articles X that are delivered to the bucket 44 by the delivery table 24 and are sequentially packed in the front side are reliably received by the standing portion 45a of the bottom plate 45 at the foremost end, the article X is stable in a standing posture on the bucket 44. Retained.

Although the delivery table 24 receives the article X in a horizontal posture, the delivery table 24 may be configured to receive the article X in a posture slightly inclined in the rotational direction d from the horizontal posture. For example, FIG. 7 (b) to the equivalent attitude of the transfer table 24 ₁ shown, in which case for starting rotation from a state in which popping of the article X ₅ is suppressed, it is possible to further speed up.

  Next, a transport device according to a second embodiment will be described. It should be noted that the same reference numerals are given to those that are the same as or similar to the above-described components unless particularly confusing, including third and fourth embodiments described later.

  As shown in FIG. 9, the rotation shafts 23... 23 which are the rotation fulcrums of the four delivery tables 24... 24 provided around the fixed shaft 22 in this case are located at the approximate center of the delivery tables 24. (The length L1 and the length L2 are substantially equal).

  According to this, since the rotating shaft 23 of the delivery table 24 is located at the approximate center of the delivery table 24, the rotation radius R is minimized, that is, the centrifugal force F acting on the article X is minimized, thereby providing a good pop-out prevention effect. Demonstrated. In addition, the code | symbol G in a figure shows the gravity center position of the article | item X. FIG.

  Next, a transport device according to a third embodiment will be described.

  As shown in FIG. 10, in this case, the rotation shafts 23... 23 that are the rotation fulcrums of the four delivery tables 24... 24 provided around the fixed shaft 22 are the lower end portions of the delivery tables 24. It is located closer (the length L1 is smaller than the length L2).

According to this, since the rotation shaft 23 which is the rotation fulcrum of the delivery table 24 is located near the lower end portion of the delivery table 24 in the standing posture, the delivery table 24 is centered on the rotation shaft 23 with an arrow d. As shown in the figure, when it is configured to rotate clockwise to change the posture, and the delivery table 24 is revolved counterclockwise as indicated by an arrow c around the fixed shaft 22 and moved forward, The delivery table 24 moves within a narrow height range _HL around the fixed shaft 22 as indicated by a thick two-dot chain line, which is advantageous in terms of installation space. That is, the moving height range _HO of the delivery table 24 when the rotary shaft 23 is positioned at the approximate center of the delivery table 24 (the length L1 and the length L2 are substantially equal) is greater than the moving height range _HL . large. Further, the moving height range H _H of the delivery table 24 when the rotary shaft 23 is positioned closer to the upper end portion of the delivery table 24 in the standing posture (the length L1 is greater than the length L2) (see FIG. 7D). ) Is larger than the moving height range _HL .

  Next, a transport device according to a fourth embodiment will be described.

  As shown in FIG. 11, the transport device 1 ′ receives articles X in a horizontal posture from an upstream carry-in conveyor 2 ′ at a receiving position P1, converts them into a standing posture, accumulates a predetermined number of them, and discharges them to a discharging position P2. As a main component, it has a delivery device 11 ′ and a stacking and conveying device 12 assembled in the main body case 1 a. Note that the stacking and conveying apparatus 12 has the same configuration as that described in detail in the first embodiment, and thus the description thereof is omitted here.

  The delivery device 11 ′ has a function of receiving the articles X in a horizontal posture from the carry-in conveyor 2 ′ one by one and converting them into a standing posture, and delivering the products X while being sequentially packed in the front stacking and transporting device 12 from the front side. . A photoelectric thickness sensor 2a ′ for measuring the thickness of the article X is installed above the carry-in conveyor 2 ′. The effect in that case is the same as that obtained by the thickness sensor 2a described in the first embodiment.

  Since the configuration of the delivery device 11 ′ is mostly the same as that described in detail in the first embodiment, each rotation shaft 23 in the support plate 21 that rotates about the fixed shaft 22 in the direction of the arrow c is fixed. The characteristic delivery table 24 'provided will be described. In this case, the rotating shaft 23 is located above the lower end of the delivery table 24 'when standing, and more specifically, close to the upper end of the delivery table 24' when standing (the rear end when horizontal). It is located near.

  As shown in FIGS. 11 and 12, the delivery table 24 ′ receives the article X supplied from the direction of the arrow b and delivers it in the direction of the arrow b coinciding with the supply direction b. And a mounting wall 24b 'and a movement restricting wall 24c' standing up from the mounting surface 24a '. The placement surface 24a ′ is a portion on which the article X supplied in a horizontal posture from the direction of the arrow b is placed, and has a comb-teeth shape so as to be able to intersect with an accumulation conveyance device 12 described later. The mounting wall 24 b ′ is a portion that is coupled to the rotating shaft 23. The movement restricting wall 24c ′ is located at the front end portion in the horizontal posture as shown in the example of the delivery table 24 ′, and is a portion that restricts the forward movement of the supplied article X. In this case, the standing heights of the mounting wall 24b ′ and the movement regulating wall 24c ′ are lower than the standing heights of the mounting wall 24b and the jumping regulating wall 24c described in the first embodiment. The movement restricting wall 24c ′ has a lower end portion of the article X when the delivery table 24 ′ rotates in the direction of the arrow d about the rotation shaft 23 and the placement surface 24a ′ is converted from the horizontal posture to the standing posture. Can be supported.

  Here, the crossing structure of the delivery table 24 ′ and the stacking and conveying device 12, that is, the bucket 44 will be described. As shown in FIG. 13, the placement surface 24 a ′ of the delivery table 24 ′ and the upright portion 45 a of the bottom plate 45 are It is formed in a comb-like shape as illustrated so that it can pass through without interfering with each other.

  Next, the operation of the transport apparatus 1 ′ will be described.

  As shown in FIG. 11, when a horizontally packed bag X is supplied from the upstream conveyor 2 'in the direction of arrow b, the delivery table 24' of the delivery device 11 ' Each is received, converted into a standing posture, and transferred to the bucket 44 of the stacking and conveying apparatus 12 in the direction of arrow b.

That is, as shown in FIG. 14A, for example, three articles X ₁ , X ₂ , X ₃ are already accumulated and held in a standing posture in a bucket 44 transferred in the direction of arrow b, for example. The article X ₄ is being delivered from the preceding delivery table 24 ₁ ′ behind the article X ₃ , and a new article X ₅ is supplied in a horizontal posture to the subsequent delivery table 24 ₂ ′. In that case, since the movement restricting wall 24c ₂ 'at the lower end in the illustrated example of the delivery table 24 ₁ ' is set to a relatively low height, the article X ₄ is quickly released and transferred to the bucket 44. . The remaining delivery tables 24 ₃ ′ and 24 ₄ ′ are in the positional relationship shown in the figure. 14 clearly shows the operation of the delivery table 24 ′ that rotates clockwise as indicated by an arrow d and revolves counterclockwise as indicated by an arrow c around the fixed shaft 22. The table 24 ′ and each article X are given unique codes.

Next, as shown in FIG. 14B, when the bucket 44 is further transferred, the delivery table 24 ₁ ′ starts to retract upward in response to this, and the held article X ₄ is stored in the bucket 44. Is passed on. On the other hand, the delivery table 24 ₂ ′ holding the new article X ₅ starts to stand and approaches the bucket 44.

Next, as shown in FIG. 14C, the delivery table 24 ₁ ′ holding the last article X ₄ on the bucket 44 is completely retracted upward, and the delivery table holding the new article X _5. 24 ₂ ′ approaches the bucket 44 while further rising.

Next, as shown in FIG. 14 (d), when the delivery table 24 ₂ ′ holding the new article X ₅ further approaches the bucket 44, the article X ₅ further stands up and tries to be positioned behind the article X _4. To do. Incidentally, the lower end portion of the article _{X 5} is supported by the 'movement restriction wall 24c ₂ of the' transfer table 24 _2.

Next, as shown in FIG. 14 (e), the delivery table 24 ₂ ′ further stands to deliver the article X ₅ to the bucket 44. On the other hand, _'transfer table 24 3 subsequent _to' the transfer table 24 2 is becoming a horizontal posture by moving to listen to accept the next new article X.

Then, as shown in FIG. 14 (f), the _fifth article X ₅ is about to be delivered from the delivery table 24 ₂ ′ to the bucket 44, and a new one is placed on the delivery table 24 ₃ ′ in the horizontal posture. article X ₆ is supplied.

  According to this, the article supply direction b to the delivery device 11 ′ and the article delivery direction b from the delivery device 11 ′ to the bucket 44 coincide with each other, and the delivery table 24 ′ is in the horizontal posture, that is, in the acceptance posture. Since the movement restricting wall 24c ′ for restricting the forward movement of the article X on the delivery table 24 ′ is provided at the front end of the delivery table 24 ′, the article X supplied from the outside is reliably received by the delivery table 24 ′. Is retained. In this case, it goes without saying that the article X is prevented from jumping out from the delivery table 24 '.

  Next, a transport device according to a fifth embodiment will be described.

  As shown in FIG. 15, the bucket 44 'of the stacking and conveying apparatus in this case is composed of twelve bottom plates 45' ... 45 ', with the frontmost bottom plate 45' at the front end and the rearmost bottom plate 45 '. Each has a standing portion 45a 'at the rear end. Further, small standing portions 45b '... 45b' having a height lower than the standing portion 45a 'are provided at the front end portions of the bottom plates 45' ... 45 'except for the bottom plate 45' at the foremost end. In this case, the interval between the adjacent small upright portions 45b 'and 45b' is set to be approximately the thickness dimension of the article X, and the height of the small upright portion 45b 'is set to the delivery tables 24 and 24' when receiving the article. It is formed at a height that does not contact.

  According to this, each article X is more stably held in the standing posture on the bucket 44 ′ by the small upright portions 45 b ′... 45 b ′ holding each article X, and the articles X. Is avoided.

  In this case, the shape that does not interfere with the delivery bases 24 and 24 ′ is not limited to a low height like the small upright portion 45 b ′ described above, but is high like the upright portion 45 a that can cross each other. A high comb-like shape or the like is preferable.

  It should be noted that the present invention is not limited to the above-described embodiment that has been specifically described in detail, and may be any that are within the spirit of the present invention. For example, the toothed pulleys 25, 26... 26 and the toothed timing belt 28 are combined to rotate the support plates 21, 21 and the delivery tables 24... 24 in a predetermined direction by a single motor 29. May be used.

  Further, the number of delivery tables 24 and 24 'provided in the delivery devices 11 and 11' is four, respectively, but may be one or two.

  And when there is no possibility of jumping out, the delivery stand 24 does not need to be provided with the pop-out prevention wall 24c.

  As described above, according to the present invention, when a plurality of relatively flat articles received at the receiving position are held in a standing posture and are transported to the discharge position, the stacking process is performed at a high speed. A conveying device that can be made simple is provided. That is, the present invention relates to a transport device that transports a relatively flat article received at a receiving position to a discharge position after accumulating a predetermined number of articles in a standing posture, and is widely suitable for the technical field of article transport.

It is a side view of the conveyance apparatus which concerns on the 1st Embodiment of this invention. It is also a front view. It is a principal part expanded arrow line view by the II-II line of FIG. It is an expanded sectional view by the III-III line of FIG. It is a typical side view when a delivery stand and the last end of a bucket cross. It is a principal part enlarged arrow view from the IV direction of FIG. It is a typical side view which shows operation of a delivery stand in time series, (a) is a state where a delivery stand received a new article, (b) and (c) are a delivery stand approaching a bucket gradually. (D) is a state in which an article starts to be delivered from the delivery table to the bucket, (e) is a state in which the delivery table is pushing the article in a substantially standing posture on the bucket from the back, and (f) is subsequent. The delivery table has received a new article. It is a typical side view for demonstrating the effect that a rotation fulcrum is located near the upper end part at the time of the standing posture of a delivery stand. It is a typical side view which shows the principal part in the conveying apparatus which concerns on the 2nd Embodiment of this invention. It is a typical side view which shows the principal part in the conveying apparatus which concerns on the 3rd Embodiment of this invention. It is the side view which abbreviate | omitted a part of conveying apparatus which concerns on the 4th Embodiment of this invention. It is sectional drawing by the VI-VI line of FIG. It is a figure equivalent to FIG. 6 which shows the principal part when a delivery stand and the last end of a bucket cross | intersect. It is a typical side view which shows operation of a delivery stand in time series, (a) is a state where a delivery stand received goods, (b)-(d) is a state where a delivery stand is approaching a bucket. (E) is a state in which the delivery table is located behind the last article on the bucket, and (f) is a state in which the subsequent delivery table has received a new article. It is a side view which shows the principal part of the bucket in the conveying apparatus which concerns on the 5th Embodiment of this invention. It is a top view of the conventional conveying apparatus. It is a side view of another conventional conveying apparatus. It is a schematic diagram for demonstrating the effect of this invention. Similarly, it is a schematic diagram. Similarly, it is a schematic diagram.

Explanation of symbols

1,1 'Conveying device 11,11' Delivery device (delivery means)
23 Rotating shaft (Pivoting fulcrum)
24, 24 'Delivery base 24c Jumping-out restriction wall 24c' Movement restriction wall 25, 26 Toothed pulley (drive means)
28 Toothed timing belt (drive means)
29 Motor (drive means, drive source)
43 Endless chain (transportation means)
44, 44 'bucket (holding means)
45a Standing part (front end holding member)
45b 'Small upright part (individual holding member)
P1 receiving position P2 discharging position X Goods

Claims (9)

Holding means for holding a plurality of articles received at a predetermined receiving position in a state where they are stacked in front and back, conveying means for transferring the holding means from the receiving position via a discharge position, and supplying from the outside at the receiving position A delivery device having delivery means for delivering the article to the holding means,
The delivery means receives the articles one by one in a predetermined receiving posture and pivots them to a standing posture to stand the articles, and moves forward to pack the articles in order from the front side to the holding means. A delivery platform,
Driving means for rotating the delivery table in synchronization with the movement of the holding means and moving it forward;
And the rotation fulcrum of the said delivery stand is located above the lower end part at the time of a standing posture, The conveying apparatus characterized by the above-mentioned. In the conveying apparatus according to claim 1,
The transport device is configured to realize a function of rotating the delivery table and a function of moving the delivery table forward with a single drive source. In the conveying apparatus according to claim 1 or 2,
The transport device according to claim 1, wherein the rotation fulcrum is located substantially in the center of the delivery table. In the conveying apparatus according to claim 1 or 2,
The transporting device according to claim 1, wherein the rotation fulcrum is located near a lower end portion of the delivery stand in a standing posture. In the conveying apparatus according to claim 1 or 2,
The transporting device according to claim 1, wherein the rotation fulcrum is positioned near an upper end portion of the delivery stand in a standing posture. In the conveyance apparatus in any one of the said Claims 1-5,
The article supply direction to the delivery means is configured to match the article delivery direction from the delivery means to the holding means,
A transport device characterized in that a movement regulating wall for regulating forward movement of articles on the delivery table is provided at a front end portion of the delivery table in a receiving posture. In the conveyance apparatus in any one of the said Claims 1-5,
The article supply direction to the delivery means is configured to be orthogonal to the article delivery direction from the delivery means to the holding means, and
A conveying device, wherein a jumping restriction wall is provided at a rear end portion of the delivery table when the delivery posture is received to regulate the jumping of articles from the delivery table. In the conveyance apparatus in any one of the said Claims 1-7,
The holding device includes a foremost end holding member for holding a foremost end article at a front end portion. In the conveyance apparatus in any one of the said Claims 1-8,
The holding means includes an individual holding member that is provided in a shape that does not interfere with the delivery table at the time of delivery of the article by the delivery table at an interval of a substantially thickness dimension of the article, and holds the article individually. A transport device.

Images