JP2007137576A - Conveying device, and measuring and packing system having the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveying device capable of receiving an article at the receiving position in a stable posture, and preventing the stacked posture from being disturbed, and a measuring and packing system having the same. <P>SOLUTION: Delivery bases 24, etc. for receiving articles X one by one in a substantially horizontal posture at the receiving position P1, turning the articles X in the erected posture direction and erecting the articles, and delivering the articles X to a bucket 44 of a stacking and conveying device 12 are provided on a delivery device 7 for receiving the articles X fed from a carry-in conveyor 6 at the receiving position P1 and delivering the articles to the stacking and conveying device 12 on the downstream side, and spaces are formed by forming loading faces of the delivery bases 24, etc. in a comb-shape. A suction mechanism 33 for sucking and holding the received articles X by the loading faces via the spaces is provided, and the suction mechanism 33 consists of a suction pump 34, a pipe 35 and a suction box 36 having a suction port. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a conveying device that accumulates a predetermined number of articles received at a receiving position in a standing posture and then conveys the articles to a discharging position, and a weighing packaging system including the conveying apparatus, and belongs to the technical field of article packaging.

  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.

  As a response to this requirement, for example, there is a conveying device disclosed in Patent Document 1. As shown in FIG. 19, the transport apparatus 100 includes a holding device 110 that holds a plurality of articles X... X received at the receiving position P <b> 1 in a front and back state, and an article X that is held by the holding apparatus 110. A pusher 120 for transferring X to a discharge position (not shown) and a delivery device 130 for delivering an article X supplied from the outside to the holding device 110 are provided.

  In that case, the holding device 110 is engaged with the upper ear portion of the article X in the standing posture to hold the article X in the standing posture, and the round bar-shaped guide rails 111 and 111 arranged on the left and right in the conveying direction y. And a table 112 that supports the article X from below. In addition, the delivery device 130 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 131... 131 for slightly moving in the y direction are provided.

  As a result, the articles X supplied from the outside are changed from the horizontal posture to the standing posture by the delivery device 130 at the receiving position P1, and delivered to the holding device 110 one by one. Then, the articles X are supported by the holding device 110, and when they are accumulated in a predetermined number, they are transported to the discharge position in the direction of the arrow y in a state where they are pressed against each other by the pusher 120 and in close contact with each other. Therefore, an efficient accumulation process of the article X is realized.

JP-A-9-104526

  By the way, in the conveyance apparatus 100 described in Patent Document 1, when the supplied article X is received by the delivery table 131 of the delivery apparatus 130, the article X is received on the receiving surface due to the center of gravity position, the inclination, or the like of the article X. X may rotate, slide or bounce, and the stacking posture of the articles X ... X delivered to the holding device 110 may be disturbed. As a result, the articles X ... X stacked at the discharge position cannot be discharged smoothly. There is a problem.

  Therefore, an object of the present invention is to provide a transport device that can receive articles in a stable posture at a receiving position and that does not disturb the stacking posture, and a weighing and packaging system including the transport device.

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

  In the first aspect of the invention, a delivery means for receiving an article supplied from the outside at a predetermined receiving position and delivering it to the downstream side, and a plurality of articles delivered from the delivery means are integrated in the front-rear direction. A holding device that holds the holding device in a state; and a transfer device that transfers the holding device to a discharge position, wherein the delivery device receives articles one by one in a substantially horizontal posture at the receiving position; It has a delivery table for delivering the article to the holding means while rotating in the standing posture direction, and an opening is provided on the article receiving surface of the delivery table. A suction means for sucking and holding the article on the receiving surface through the opening is provided.

  Further, the invention according to claim 2 is the transfer apparatus according to claim 1, wherein the suction means includes a suction source and a suction chamber connected to the suction source. Is arranged so as not to interfere with the movement trajectory of the delivery table at a position below the delivery table when it arrives at the reception position, and the suction chamber has a receiving surface of the delivery table. A suction port facing the opening is provided.

  According to a third aspect of the present invention, in the transfer apparatus according to the second aspect, the suction source constantly sucks the suction chamber.

  According to a fourth aspect of the present invention, in the transfer device according to the second or third aspect, the suction port of the suction chamber is a rear side in the article supply direction from the outside on the receiving surface of the delivery table. It is provided so that it may be located in.

  The invention described in claim 5 is characterized in that, in the transfer device described in claim 2 or 4, control means for controlling the timing of suction holding by the suction means is provided.

  On the other hand, according to a sixth aspect of the present invention, in the transfer device according to the first aspect, the suction means includes a suction source and a suction chamber connected to the suction source, and the suction chamber Is attached to the back surface of the delivery table, and the suction chamber is provided with a suction port facing the opening of the receiving surface of the delivery table.

  The invention according to claim 7 is the transfer device according to claim 6, wherein the suction means has a suction passage connecting a suction source and a suction chamber, and the passage includes the suction passage. A passage opening / closing mechanism for connecting or blocking the suction source and the suction chamber is provided.

  The invention described in claim 8 is characterized in that, in the transfer device described in claim 6, control means for controlling the timing of suction holding by the suction means is provided.

  The invention according to claim 9 is the transfer device according to any one of claims 2 to 8, wherein the suction chamber has a suction port substantially over the entire surface facing the back surface of the delivery table. Is provided.

  The invention according to claim 10 is the transfer device according to any one of claims 1 to 9, wherein the delivery table has a receiving surface recessed as viewed from the article supply direction. Features.

  The invention described in claim 11 is a weighing and packaging system for weighing the contents and then packaging them to form a packaged article, and packing the articles accumulated in a predetermined number in a container, The transport apparatus according to any one of claims 1 to 10, wherein the transport apparatus according to any one of claims 1 to 10 is provided which receives an article at a receiving position and transports the article to a discharging position for packing.

  First, according to the invention described in claim 1, since the delivery table rotates in the standing posture direction when receiving the article supplied from the outside at the receiving position, the article is in the standing posture along with this, Passed to the holding means.

  In this case, since the article received by the delivery table from the outside is sucked and held on the receiving surface by the suction means, the article is prevented from rotating, sliding, or jumping on the receiving surface. Therefore, it is possible to realize a transport apparatus that can receive articles in a stable posture at the receiving position and that does not disturb the stacking posture.

  According to the second aspect of the present invention, the suction chamber of the suction means can be permanently placed at a position below the delivery table when coming to the reception position so as not to interfere with the movement trajectory of the delivery table. Therefore, the suction and holding can be realized with a relatively simple configuration.

  According to the invention described in claim 3, since the suction source always sucks the suction chamber, troublesome control is unnecessary. Still, when the delivery table is positioned at the receiving position and accepts an article from the outside, the suction force by the suction chamber reaches the receiving surface, and suction holding starts. On the other hand, as the delivery table moves away from the receiving position, the suction chamber The suction force does not reach the receiving surface, the suction holding is released, and the article is smoothly transferred from the delivery table to the holding means.

  By the way, when the suction port of the suction chamber is provided on the front side in the article supply direction on the receiving surface of the delivery table, a particularly lightweight article supplied from the outside is on the front side on the receiving surface. Although there is a possibility that the article cannot be held at an appropriate position on the receiving surface by being braked, according to the invention of claim 4, the suction port of the suction chamber is provided on the receiving surface of the delivery table. Since it is provided so as to be located on the back side in the supply direction, the supplied article is only sucked and held after reaching the back side on the receiving surface, and the above problem is effectively solved. The

  According to the fifth aspect of the present invention, since the control means is provided, the timing of suction holding and suction release is precisely and accurately controlled.

  On the other hand, according to the invention described in claim 6, since the suction chamber of the suction means is attached to the delivery table, the suction and holding of the article on the receiving surface of the delivery table becomes more reliable.

  Further, according to the invention described in claim 7, since a passage opening / closing mechanism that connects or blocks the suction source and the suction chamber is interposed in the middle of the suction passage that connects the suction source and the suction chamber. Suction holding and suction release are realized with a relatively simple mechanical configuration.

  Further, according to the invention described in claim 8, since the control means is provided, the timing of suction holding and suction release is precisely and accurately controlled.

  Further, according to the ninth aspect of the present invention, the suction chamber is provided with a suction port on almost the entire surface facing the back surface of the delivery table, so that suction force is exerted on the article over a wide range. As a result, the suction and holding of the article is further ensured.

  By the way, if the article is a packaged article with the center swelled in particular and the receiving surface of the delivery table is flat, the contact area between the delivery table and the article received by the delivery table is small, and on the delivery table. Although there is a concern that the posture of the article becomes more unstable, according to the invention described in claim 10, since the receiving surface of the delivery table is recessed when viewed from the article supply direction, the article and the delivery table The contact area between the two is surely increased, and the article is well gripped by the delivery table, and the concern is surely wiped out.

  And according to invention of Claim 11, the effect similar to the effect acquired by the invention of each said claim is acquired in a measurement packaging system.

  A weighing boxing system according to an embodiment of the present invention will be described.

  As shown in FIG. 1, this weighing boxing system 1 packs a predetermined number of packaged articles X... X in a cardboard box Y, and is installed up and down in order from the upstream side as main components. A combination weighing device 2, a vertical bag making and packaging machine 3, a seal checker 4, a weight checker 5, a carry-in conveyor 6, a transfer device 7, and a boxing device 8 are provided. The article X is transported in the direction of the arrow in the figure.

  The combination weighing device 2 combines the supplied contents such as snacks and weighs them to a predetermined weight, and the bag making and packaging machine 3 seals the flexible packaging material such as a plastic film vertically and horizontally, thereby combining the combination weighing. The contents of a predetermined weight discharged from the apparatus 2 are packaged to form a packaged article X.

  The seal checker 4 inspects the quality of the sealed state while conveying the article X received from the bag making and packaging machine 3, and the weight checker 5 measures the article X received from the seal checker 4 while conveying it. In this way, the weight is checked for excess or excess.

  The conveying device 7 is configured to receive the articles X discharged from the weight checker 5 and carried through the carry-in conveyor 6 at the receiving position P1 so as to be collected and conveyed to the discharging position P2 for boxing, which will be described in detail later. .

  The boxing device 8 packs the stacked articles X ... X discharged from the transport device 7 at the discharge position P2 into the cardboard box Y. In the illustrated example, the articles X ... X are packed in 12 rows and 2 rows.

  First, the transport device 7 according to the first embodiment shown in FIG. 2 and FIG. 3 is downstream of a flat belt type carry-in conveyor 6 that carries the article X into the receiving position P1 in a horizontal posture as indicated by an arrow a. The delivery device 11 that receives the article X from the carry-in conveyor 6 and delivers it to the downstream side, and the article X... And a stacking and transporting device 12 for transporting to the discharge position P2.

  The delivery device 11 receives the articles X one by one from the carry-in conveyor 6 at the receiving position P1 and converts them into a standing posture, and delivers the articles X while being sequentially packed into the downstream stacking and conveying device 12 from the front side. .

  As shown in FIGS. 2 to 4, 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 7 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 projecting portions, and the delivery table 24 fixed to the rotating shafts 23 ... 23, respectively. ... 24 are provided. The support plates 21 and 21 rotate in the direction of arrow c about the fixed shaft 22.

  The delivery table 24 is configured to erect the article X by rotating in the standing posture direction as indicated by an arrow d, and deliver the article X to the stacking and conveying apparatus 12 by moving forward. In that case, the delivery table 24 is configured such that the receiving posture is a horizontal posture. And the rotating shaft 23 which is a rotation fulcrum of the delivery stand 24 is located inside the front side edge part in the said receiving attitude | position.

  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.

  A motor 29 is installed relatively above the main body case 7a, 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... 23 rotate in the direction of the arrow d to realize the above-described predetermined receiving posture and standing posture, and support. The plate 21 moves forward, that is, in the direction of the arrow b through the rotation in the direction of the arrow c. 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.

  As shown in FIGS. 4 and 5, the delivery table 24 that receives the article X supplied from the direction of the arrow a by the carry-in conveyor 6 and delivers it in the direction of the arrow b orthogonal to the supply direction a includes a mounting surface 24 a The mounting wall 24b stands up from the mounting surface 24a and the jump-out restricting wall 24c. The placement surface 24a is a flat surface on which the article X to be supplied is placed, and is formed in a comb-teeth shape so as to be able to intersect the stacking and conveying apparatus 12 to be described later, and three slit-shaped gaps S ... S are formed. Has been. 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 in the receiving posture as shown in the figure, and the delivery table 24 rotates in the direction of the arrow d with the rotation shaft 23 as a fulcrum, so that the mounting surface 24a is This is a part that regulates the projection of the article X from the delivery table 24 when it is converted from the receiving posture to the standing posture in the forward direction, that is, in the direction of the arrow b.

  As shown in FIGS. 2 to 5, a suction mechanism 33 that sucks and holds the article X received by the delivery table 24 on the mounting surface 24 a through the gap S is provided.

  The suction mechanism 33 includes a suction pump 34 supported by the main body case 7a, and a suction box 36 connected to the suction pump 34 via a pipe 35 and provided with one suction port 36a on the upper surface. Yes. The suction box 36 is of a stationary type and is arranged so as not to interfere with the movement trajectory T of the delivery table 24 indicated by a thick dashed line in FIG. 2 at a position below the delivery table 24 when it reaches the receiving position P1. Has been. The suction port 36a has a rectangular shape, and is provided so as to face a gap S on the back side in the article supply direction a from the outside on the placement surface 24a of the delivery table 24.

  As shown in FIGS. 2 and 3, the stacking and conveying apparatus 12 accumulates the articles X in the standing posture delivered from the delivery apparatus 11 in a predetermined number in the posture, and the articles X. It is transferred to the discharge position P2.

  The stacking / conveying device 12 has a pair of upstream and downstream support shafts 41 and 41 rotatably supported in the main body case 7a. Each support shaft 41 includes four sprockets (upstream and downstream in FIG. 2). 42... 42 are assembled. And endless chains (only one is shown in FIG. 2) 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 that case, the front and rear end bottom plates 45 and 45 are respectively L-shaped in a side view with the front end portion and the rear end portion standing upright, and the upright portions 45a and 45a are comb-toothed in a front view. ing. 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. 3) 46, 46 are installed below the main body case 7 a, and the driving force of each motor 46 is a pulley 46 a assembled to the output shaft of the motor 46. And a timing belt 47 wound around a pulley 41a assembled to the support shaft 41, and is transmitted 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. 6, the delivery table 24 and the upright portion 45a of the bottom plate 45 at the rearmost end of the bucket 44 that has completed the holding of the predetermined number of articles X... 7, the mounting surface 24a of the delivery table 24 and the upright portion 45a of the bottom plate 45 supported between the pair of endless chains 43 and 43 have a comb-teeth shape as shown in the figure without interfering with each other. Is formed.

  Next, the operation of the weighing box packaging system 1 will be described.

  First, as shown in FIG. 1, contents such as snack snacks supplied from the upstream side are weighed to a predetermined weight by the combination weighing device 2 and discharged to the lower bag making and packaging machine 3. The discharged contents are made into a packed product X by the bag making and packaging machine 3 and supplied to two downstream inspection devices. That is, the seal checker 4 inspects the quality of the sealed state of the article X, and abnormal products are discharged out of the conveyance path. In addition, the weight checker 5 checks whether the weight is too low or too high, and defective products are similarly discharged out of the conveyance path.

  Next, the article X that has been determined to be non-defective by the above-described inspection is supplied to the transfer device 7 via the carry-in conveyor 6. The articles X received by the transport device 7 at the receiving position P1 are accumulated in a predetermined number and then transported to the discharge position P2 by the transport device 7.

  The stacked articles X... X discharged from the transport device 7 at the discharge position P2 are packed into the cardboard box Y by the boxing device 8. That is, first, after twelve articles X... X are packed in the back side of the empty cardboard box Y, new twelve articles X... X that have been transported by the transport device 7 are packed in the front side.

  In this case, as shown in FIGS. 2 and 3, in the transport device 7, when the packaged article X in a horizontal posture is supplied from the upstream carry-in conveyor 6 in the direction of the arrow a, the delivery device 11 at the receiving position P <b> 1. The delivery table 24 receives the articles X one by one, converts them into a standing posture, and delivers them to the bucket 44 of the stacking and conveying apparatus 12 in the direction of arrow b.

That is, as shown in FIG. 8A, 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. Further, the transfer table 24 ₂ new articles X ₅ in the horizontal position subsequent to being supplied. The remaining delivery tables 24 ₃ and 24 ₄ are in the positional relationship shown in the figure. 8 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.

In that case, the lower the transfer table 24 ₂ came to receiving position P1 are suction boxes 36 disposed, the suction box 36 is sucked continuously by the suction pump 34. Therefore, the article X ₅ supplied is suction-held transfer table 24 _2.

Then, as shown in FIG. 8 (b), transfer table transfer table 24 ₁ which has been held from behind the articles X ₄ of the rearmost end of the bucket 44 begins to retreat upward, holding the new article X ₅ 24 ₂ approaches the bucket 44 while beginning to stand up. Then, the transfer table 24 ₂ is so starts away from the suction box 36, the suction force can not reach gradually the article X _5.

Next, as shown in FIG. 8C, the delivery table 24 ₁ holding the last article X ₄ on the bucket 44 is completely retracted upward, and the delivery table 24 ₂ holding the article X ₅ is Furthermore, it approaches the bucket 44 while standing. In that case, since the transfer table 24 ₂ is to be separated largely from the suction box 36, the suction force is released sucking and holding no longer reach the article X ₅ held on the transfer table 24 _2, article X ₅ buckets 44 Start to slide down in the direction.

Then, as shown in FIG. 8 (d), when approaching the transfer table 24 ₂ is further bucket 44 holding the articles X _5, article X ₅ is landed into the bucket 44 while standing, behind the article X ₄ To position.

Then, as shown in FIG. 8 (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 for facing the acceptance of the next new article X, becoming horizontal posture.

Then, as shown in FIG. 8 (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. In that case, since the suction force through the suction box 36 extends to an article X ₆ supplied, the article X ₆ is sucked and held on the transfer table 24 _3.

As described above, the delivery device 11 of the transport device 7 is provided with the _four delivery tables 24 _{1 to} 24 ₄ , and these can be replaced to receive the article X, so that the articles X can be collected at the receiving position P 1 at high speed. Is achieved. Incidentally, during a series of operation periods, as shown in FIG. 8 (a) ~ (f) , transfer table ₂₄ 1-24 ₄ does not interfere with the suction box 36 of the stationary type.

  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 stacking process of the articles X. Figured.

  6 and 7, since the standing portion 45a of the bottom plate 45 at the rearmost end of the bucket 44 and the placement surface 24a of the delivery table 24 are formed in a comb-teeth shape, 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 is crossed with the placement surface 24a of the delivery table 24 and passes behind the last article X. Hold. 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.

  By configuring as described above, first, the delivery table 24 rotates in the standing posture direction when receiving the article X supplied from the outside at the receiving position P1, and accordingly, the article X is in the standing posture. And delivered to the bucket 44.

  In that case, since the article X received by the delivery table 24 from the outside is sucked and held on the placement surface 24a by the suction mechanism 33, the article X is prevented from rotating, slipping and jumping on the placement surface 24a. Is done. Therefore, the conveyance device 7 that can receive the article X in a stable posture at the receiving position P1 and does not disturb the stacking posture is realized.

  Further, since the suction chamber 36 of the suction mechanism 33 can be permanently placed at a position below the delivery table 24 when it reaches the reception position P1, so as not to interfere with the movement trajectory T of the delivery table 24. Suction holding is realized with a simple configuration.

  Further, since the suction pump 34 always sucks the suction box 36, troublesome control is unnecessary. Nevertheless, when the delivery table 24 is positioned at the receiving position P1 and receives the article X from the outside, the suction force by the suction box 36 reaches the placement surface 24a, and suction holding is started, while the delivery table 24 is moved to the receiving position P1. As the distance from the position increases, the suction force by the suction box 36 does not reach the mounting surface 24a, and the suction holding is released, and the delivery of the article X from the delivery table 24 to the bucket 44 is performed smoothly.

  By the way, when the suction port 36a of the suction box 36 is provided on the front side in the article supply direction a on the placement surface 24a of the delivery table 24, the particularly lightweight article X supplied from the outside is Although the brake is applied on the front side of the placement surface 24a and the article X may not be held at an appropriate position on the placement surface 24a, according to the present embodiment, the suction of the suction box 36 is not possible. Since the mouth 36a is provided so as to be located on the back side in the article supply direction a on the placement surface 24a of the delivery table 24, the supplied article X is not braked until it reaches the back side of the placement surface 24a. As a result, the above problem is effectively solved.

  Then, the same effect as that obtained in the above-described transport device 7 is obtained in the weighing box packaging system 1.

  Here, a modification of the first embodiment will be described. In addition, in order to avoid complication of description, the same reference numerals are given to components that are common or similar to the above-described members, including the following second embodiment and modifications thereof, unless particularly confusing. I will attach it.

  The conveying device 7 in this case is basically configured in the same manner as that shown in FIG. 2 described above, and the upstream delivery device 11 and the downstream bucket 44 connected to the carry-in conveyor 6. And a suction mechanism 33 is provided. The suction mechanism 33 is disposed so as not to interfere with the movement trajectory T of the delivery table 24 at a position below the delivery table 24 when it reaches the reception position P1. As shown in FIG. 2, an electromagnetic valve 35 a indicated by a two-dot chain line is interposed in a pipe 35 that connects the suction pump 34 and the suction box 36.

  Further, as shown in FIG. 9, the suction box 36 connected to the pipe 35 has almost the entire surface facing the back surface of the delivery table 24 having the mounting surface 24a, the mounting wall 24b, and the jump-out restricting wall 24c. Are provided with three rectangular suction ports 36a... 36a. That is, in the illustrated example, the suction ports 36a... 36a are provided so as to face the three gaps S. Further, an article detection sensor 6 a that detects the article X is disposed above the vicinity of the downstream end of the carry-in conveyor 6.

  And as shown in FIG. 10, the control unit 50 which controls this measurement boxing system 1 comprehensively is provided. The control unit 50 exchanges signals with the combination weighing device 2, the bag making and packaging machine 3, the seal checker 4, and the weight checker 5. Further, the control unit 50 outputs a control signal to the carry-in conveyor 6 and inputs a detection signal from the article detection sensor 6a. The control unit 50 also outputs control signals to the rotation motor 29 of the delivery device 11 in the transport device 7 and the suction pump 34 and the electromagnetic valve 35 a of the suction mechanism 33. Further, the control unit 50 outputs a control signal to the transport motors 46 of the stacking transport device 12. Then, the control unit 50 outputs a control signal to the boxing device 8.

  Only the main part of the operation of the conveying device 7 will be described. As shown in FIG. 9, the articles X supplied from the carry-in conveyor 6 in the direction of the arrow a are received one by one on the delivery table 24 and then delivered. The stand 24 is turned into the standing posture by rotating in the standing posture direction, and is delivered to the stacking and conveying apparatus 12 that transports the articles X.

  In that case, the control unit 50 that has input the detection signal from the article detection sensor 6a always has a timing at which the article X is positioned on the placement surface 24a of the delivery table 24, for example, as indicated by a two-dot chain line in FIG. A control signal is output so as to open an electromagnetic valve 35a provided in a pipe 35 that connects the suction pump 34 and the suction box 36 that is being driven, and the valve is mounted via the suction ports 36a ... 36a and the gaps S ... S. The article X on the placement surface 24a is sucked and held.

Then, when the delivery table 24 rotates in the standing posture direction to a predetermined angle, the suction force via the suction box 36 does not reach the article X, the suction holding is released, and the article X held on the delivery table 24 is released. Begins to slide down in the bucket 44 direction. When the delivery table 24 is rotated to the predetermined angle, the control unit 50 outputs a control signal so as to close the electromagnetic valve 35a. For example, the delivery table in FIG. A rotation angle of 24 ₂ is set.

  With this configuration, the article X received by the delivery table 24 from the outside is also sucked and held on the placement surface 24a by the suction mechanism 33 in this case, so that the article X rotates on the placement surface 24a. Prevents slipping, slipping and bouncing. In addition, since the control unit 50 is provided, the timing of suction holding and suction release is precisely and accurately controlled.

  Since the suction box 36 is provided with suction ports 36a... 36a on almost the entire surface facing the back surface of the delivery table 24, the suction force is applied to the article X over a wide range. The suction and holding of X becomes more reliable.

  The three suction ports 36a... 36a may be combined into one suction port. Further, the driving of the suction pump 34 may be controlled instead of controlling the opening and closing of the electromagnetic valve 35a.

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

  As shown in the excerpt of the main part in FIG. 11, the transport device 7 in this case is basically configured in the same manner as that shown in FIG. 2 and is connected to the carry-in conveyor 6. Further, the delivery device 11 on the upstream side and the stacking and conveying device 12 having the bucket 44 on the downstream side are provided, and a suction mechanism 33 is provided. The suction mechanism 33 includes a suction pump 34 supported by the main body case 7 a and four suction boxes 36... 36 connected to the suction pump 34 via a pipe 35. In this case, the suction box 36 is integrated with the delivery table 24 and is attached to the back surface of the delivery table 24.

  As shown in FIGS. 12 to 14, a single passage 22 a is provided at the shaft center of the fixed shaft 22 and extends to the location of the inner support plate 21 that is rotatably supported by the fixed shaft 22 in the direction of arrow c. The passage 22a is provided with a single passage 22a 'extending in the radial direction from the end on the inner support plate 21 side. A pipe 35 is connected to an end portion on the timing belt 32 side that transmits the driving force of the motor 29 to the fixed shaft 22 in the passage 22a. The inner support plate 21 is provided with four passages 21a... 21a extending to the rotation shafts 23... 23 of the delivery tables 24... 24 so as to be able to communicate with the passage 22a only in a predetermined rotational position relationship.

  On the other hand, as shown in FIGS. 12, 14, and 15, each rotating shaft 23 is attached to the outer surface of the mounting wall 24 b of each delivery table 24 having the mounting surface 24 a, the mounting wall 24 b, and the jump-out restricting wall 24 c. Each penetrating block member 37 is fixed. Each rotary shaft 23 is provided with a passage 23a extending from the location of the inner support plate 21 to the block member 37 in the axial direction, and the passage 23a passes through one end of the passage 21a. In addition, the other end portion is provided in the block member 37 and communicates with a passage 37a extending along the mounting wall 24b. The passage 37a is connected to the suction box 36 via a tube 38, so that the suction force by the suction pump 34 is communicated with the pipe 35, the passages 22a, 22a ', 21a, 23a, 37a, and the tube 38. Then, the article X is sucked and held in the suction box 36.

  As shown in FIGS. 14 and 15, the suction box 36 is provided with one rectangular suction port 36 a that faces the gap S on the back side in the article supply direction a from the outside on the placement surface 24 a of the delivery table 24. It has been.

  If only the main part is demonstrated about the effect | action of this conveying apparatus 7, if the articles | goods X of a horizontal attitude | position are supplied from the carrying-in conveyor 6 to the arrow a direction as shown in FIG.11 and FIG.15, the delivery apparatus 11 will be in the receiving position P1. The delivery table 24 receives the articles X one by one, converts them into a standing posture, and delivers them to the bucket 44 of the stacking and conveying apparatus 12 in the direction of arrow b.

That is, as shown in FIG. 16A, 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. Further, the transfer table 24 ₂ new articles X ₅ in the horizontal position subsequent to being supplied. The remaining delivery tables 24 ₃ and 24 ₄ are in the positional relationship shown in the figure.

In that case, a suction box 36 is attached to the back surface of each delivery table 24 ₁ , 24 ₂ , 24 ₃ , 24 ₄ . As shown in FIGS. 12 and 13, a single passage 22 a provided on the fixed shaft 22 and connected to the pipe 35, a passage 22 a ′ extending to the passage 22 a, and the fixed shaft 22 The four passages 21a... 21a provided on the inner support plate 21 rotating with respect to the suction boxes 36... 36 attached to the four delivery tables 24. By being configured to be able to communicate with each other, a mechanical type passage opening / closing mechanism for communicating or blocking between the suction pump 34 and one specific suction box 36 is formed. In the illustrated example, the suction pump 34 and the suction box 36 of the delivery table 24 (the delivery table 24 ₂ in FIG. 16A) that is in the lower horizontal posture and is located at the receiving position P1 are in communication.

Accordingly, the suction force by the suction pump 34, piping 35, the passage 22a, 22a ', 21a, 23a , 37a, and through the tube 38 Oyobi to a particular one of the suction box 36, the article _{X 5} supplied transfer table It is sucked and held on the 24 _2.

Then, as shown in FIG. 16 (b), 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. In this case, as shown by a two-dot chain line in FIG. 13, when the support plate 21 rotates about the fixed shaft 22 in the direction of the arrow c, the communication state between the passages 22a and 22a ′ and one specific passage 21a. sliding order but is eliminated, the suction force by the suction pump 34 is released sucking and holding no longer reach the suction box 36 of the transfer table 24 _2, article X ₅ which has been held in the transfer table 24 ₂ is in the bucket 44 direction Start to fall.

  With this configuration, the article X received by the delivery table 24 from the outside is sucked and held on the placement surface 24a by the suction mechanism 33 in this case as well, so that the article X is placed on the placement surface 24a. Rotating, slipping and bouncing are prevented. In addition, since the suction box 36 of the suction mechanism 33 is attached to the delivery table 24, the suction holding of the article X on the placement surface 24 a of the delivery table 24 becomes more reliable.

  Further, in the middle of the passages 22a, 22a ', 21a, 23a, 37a that connect the suction pump 34 and the suction box 36, a passage 22a' that connects or blocks the suction pump 34 and the suction box 36, and passages 21a ... 21a Since the passage opening / closing mechanism is provided, suction holding and suction release are realized with a relatively simple mechanical configuration.

  And since the suction port 36a of the suction box 36 is provided so that it may be located in the back | inner side of the articles | goods supply direction a in the mounting surface 24a of the delivery stand 24, the supplied goods X are the back in the mounting surface 24a. The brake is applied for the first time until it reaches the side and is held in the proper position.

  Here, a modification of the second embodiment will be described.

  In this case, as shown by a two-dot chain line in FIG. 11, the transport device 7 includes a suction mechanism 33 having a suction pump 34, a pipe 35, and a suction box 36, and an electromagnetic valve 35 a is interposed in the pipe 35. . And as shown by a solid line and a two-dot chain line in FIG. 15, the suction box 36 is provided with three rectangular suction ports 36a... 36a on almost the entire surface facing the back surface of the delivery table 24. .

  In addition, as shown in FIG. 17, a single passage 22 a is provided at the axial center of the fixed shaft 22 and extends to the place where the inner support plate 21 is rotatably supported by the fixed shaft 22 in the direction of arrow c. In addition, a circumferential groove 22b is provided on the outer periphery of the place where the inner support plate 21 is disposed, and a passage 22a ′ extending in the radial direction of the fixed shaft 22 connecting the passage 22a and the circumferential groove 22b. Is extended. The inner support plate 21 is provided with four passages 21a... 21a that communicate with the circumferential groove 22b and extend to the rotating shafts 23. Thus, the passages 22a, 22a ′ and the passage 21a are always in communication with each other regardless of the rotational position of the support plate 21 rotating in the direction of the arrow c.

  Further, as indicated by a two-dot chain line in FIG. 15, the article detection sensor 6 a is disposed above the vicinity of the downstream end of the carry-in conveyor 6. A control unit 50 similar to that shown in FIG. 10 is provided.

Only the main part of the operation of the conveying device 7 will be described. As shown in FIGS. 16A and 16B, the article X is received and delivered. In this case, the article detection sensor 6a is used. The control unit 50 to which the detection signal is input is always driven at the timing when the article X (X ₅ ) is positioned on the placement surface 24a of the delivery table 24 (24 ₂ ), for example, as shown in FIG. A control signal is output so as to open the electromagnetic valve 35a interposed in the pipe 35 connecting the suction pump 34 and the suction box 36. As a result, the suction force of the suction pump 34 reaches the suction box 36 through the passages 22a, 22a ′, 21a that are always in communication, and the article X (X ₅ ) on the placement surface 24a is sucked and held. The

When the delivery table 24 (24 ₂ ) rotates in the standing posture direction to a predetermined angle, the control unit 50 outputs a control signal so as to close the electromagnetic valve 35a. As a result, the communication state between the suction pump 34 and the suction box 36 is cut off, so that the suction force by the suction pump 36 does not reach the article X (X ₅ ), the suction holding is released, and the article X (X ₅ ) begins to slide down in the bucket 44 direction. Note that this predetermined angle, for example, angle of rotation of the transfer table 24 ₂ in FIG. 8 (c) is set.

  As described above, by providing the control unit 50, the timing of suction holding and suction release is precisely and accurately controlled.

  Since the suction box 36 is provided with suction ports 36a... 36a on almost the entire surface facing the back surface of the delivery table 24, the suction force is applied to the article X over a wide range. The suction and holding of X becomes more reliable.

  Next, a third embodiment will be described.

  As shown in FIG. 18, in this case, the mounting surfaces 24a 'and 24a "are recessed in the delivery tables 24' and 24". That is, the mounting surface 24a ′ of the delivery table 24 ′ shown in FIG. 18A has a shallow V shape. On the other hand, the mounting surface 24a ″ of the delivery table 24 ″ shown in FIG. 18B has a curved shape.

  The article X is a packaged article with the center inflated in particular, and the mounting surface 24a of the delivery table 24 is flat, and the contact area between the delivery table 24 and the article X received by the delivery table 24 Is small, and there is a concern that the posture of the article X on the delivery table 24 becomes more unstable, as described above, the placement surfaces 24a 'and 24a "of the delivery tables 24' and 24" are supplied with the article. Since it is recessed when viewed from the direction a, as shown by arrows e and f, the contact location and the contact area between the article X and the delivery tables 24 'and 24 "are increased reliably, and the article X is delivered. Good grip on the pedestals 24 ′, 24 ″ ensures that the concern is wiped out.

  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 suction port 36a in the first and second embodiments has a single rectangular shape, but it may be divided into a plurality of shapes, and the shape is not limited to a rectangular shape.

  Further, in the modification of the first embodiment and the modification of the second embodiment, the suction box 36 includes three suction ports 36a... 36a on almost the entire surface facing the back surface of the delivery table 24. However, only one suction port 36a on the back side may be provided.

  Further, the stacking / conveying device 12 was provided with four endless chains 43... 43 and a pair of buckets 44, 44, but each can be added.

  In the embodiment, the collected articles X... X are packed in the cardboard box Y by the boxing device 8, but may be packed in a large bag by the bagging device.

  As described above, according to the present invention, it is possible to provide a transport device that can receive articles in a stable posture at a receiving position and that does not disturb the stacking posture, and a weighing packaging system including the transport device. That is, the present invention relates to a transport apparatus that stacks a predetermined number of articles received at a receiving position in a standing posture and then transports the articles to a discharge position, and a weighing packing system including the transport apparatus, and is widely applicable to the technical field of packing goods.

It is a schematic plan view of the measurement boxing system which concerns on embodiment of this invention. It is a side view of the conveying apparatus which concerns on 1st Embodiment. 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. FIG. 6 is a diagram corresponding to FIG. 5, showing a configuration of a suction box in a transport device according to a modification of the first embodiment. It is a control block diagram. It is a principal part side view of the conveying apparatus which concerns on 2nd Embodiment. It is the principal part enlarged front view which fractured | ruptured the part similarly. It is sectional drawing by the VI-V1 line | wire of FIG. It is sectional drawing by the VII-VII line of FIG. It is sectional drawing by the VIII-VIII line 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) is a state where a delivery stand is gradually approaching a bucket. is there. It is sectional drawing equivalent to FIG. 13 in the conveying apparatus which concerns on the modification of 2nd Embodiment. It is a side view of the delivery stand with which the mounting surface in the conveying apparatus which concerns on 3rd Embodiment was recessedly provided, (a) is a shallow V-shaped case, (b) is a curved shape case. It is a side view of the conventional conveying apparatus.

Explanation of symbols

1 Weighing packaging system (weighing packaging system)
7 Transport device 11 Delivery device (delivery means)
21a, 22a 'passage (suction passage, passage opening / closing mechanism)
22a, 23a, 37a passage (suction passage)
24, 24 ', 24 "delivery table 24a, 24a', 24a" mounting surface (article receiving surface)
33 Suction mechanism (suction means)
34 Suction pump (suction source)
36 Suction box (suction chamber)
36a Suction port 43 Endless chain (conveying means)
44 bucket (holding means)
50 Control unit (control means)
P1 Acceptance position P2 Discharge position S Clearance (accepting surface opening)
T Trajectory of delivery table X Goods Y Cardboard box (container)

Claims (11)

A delivery means for receiving an article supplied from the outside at a predetermined receiving position and delivering it to the downstream side, a holding means for holding a plurality of articles delivered from the delivery means in a state where they are stacked back and forth, and the holding means A conveying device having a conveying means for transferring the gas to a discharge position,
The delivery means, after receiving the articles one by one in a substantially horizontal posture at the receiving position, rotates in the standing posture direction to stand the articles, and has a delivery stand for delivering the articles to the holding means. And
An opening is provided in the article receiving surface of the delivery table,
A conveying apparatus comprising: suction means for sucking and holding received articles on the receiving surface through the opening. In the conveying apparatus according to claim 1,
The suction means has a suction source and a suction chamber connected to the suction source;
The suction chamber is disposed so as not to interfere with the movement trajectory of the delivery table at a position below the delivery table when coming to the reception position, and
The transporting device according to claim 1, wherein a suction port facing the opening of the receiving surface of the delivery table is provided in the suction chamber. In the conveying apparatus according to claim 2,
The conveying device, wherein the suction source is constantly sucking the suction chamber. In the conveyance apparatus of the said Claim 2 or Claim 3,
The suction apparatus of the said suction chamber is provided so that it may be located in the back | inner side of the article supply direction from the outside in the receiving surface of the said delivery stand. In the conveyance apparatus of the said Claim 2 or Claim 4,
A transport device comprising control means for controlling the timing of suction holding by the suction means. In the conveying apparatus according to claim 1,
The suction means has a suction source and a suction chamber connected to the suction source;
The suction chamber is attached to the back surface of the delivery table; and
The transporting device according to claim 1, wherein a suction port facing the opening of the receiving surface of the delivery table is provided in the suction chamber. In the conveying apparatus according to claim 6,
The suction means has a suction passage connecting a suction source and a suction chamber;
A conveying device characterized in that the passage is provided with a passage opening / closing mechanism for communicating or blocking the suction source and the suction chamber. In the conveying apparatus according to claim 6,
A transport device comprising control means for controlling the timing of suction holding by the suction means. In the conveyance apparatus in any one of the said Claims 2-8,
In the suction chamber, a suction port is provided on substantially the entire surface facing the back surface of the delivery table. In the conveyance apparatus in any one of the said Claims 1-9,
The transfer device, wherein the delivery table has a receiving surface recessed as viewed from the article supply direction. A weighing and packing system that measures and wraps the contents into a packaged article, and packs the article accumulated in a predetermined number in a container,
11. A weighing and packaging system comprising: a conveying device according to claim 1 that receives an article after weighing and packaging at a receiving position and conveys the article to a discharging position for packing.

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