JP2006137456A - Transporting unit and boxing apparatus equipped with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transporting unit which speeds up the reception of articles by using few driving means when receiving the relatively flat articles in a standing position at a receiving position and transporting the articles accumulated up to a given number to an ejection position, and to provide a boxing apparatus equipped with the transporting unit. <P>SOLUTION: The transporting unit has rear end holding member driving mechanisms 241 and 241 at both sides across and above a transfer path for a bucket 220 that transfers the accumulated articles in the standing position. Each rear end holding member driving mechanism 241 is provided with a pair of endless chains 254 and 254 that run along a given path in cycle, and that are so connected to a pair of rear end holding members 248 and 248 that each pair of rear end holding members 248 and 248 keep an almost equal distance between the paired holding members 248 and their vertical position. One pair of rear end holding members 248 and 248 are moved by a single motor 249. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a conveying device that conveys a relatively flat article received at an upstream receiving position to a downstream discharging position in an accumulated state while maintaining a standing posture, and a boxing device including the conveying device. It belongs to the technical field.

  Conventionally, articles such as snacks are packaged in a cardboard box or the like after being packaged. And in recent years, in such a boxing apparatus, there is a tendency that an improvement in productivity by increasing the speed is increasingly required.

  As a response to this requirement, for example, there is a boxing device disclosed in Patent Document 1. As shown in FIG. 22, in a transport device A that is provided in the boxing device and transports articles X... X that are relatively flat from the receiving position to the discharge position in a stacked state, a bucket A10 that holds the articles X. And a receiving device A20 for receiving the articles X in the standing posture supplied from the front side into the bucket A10 one by one in the illustrated example.

  Bucket A10 is connected to endless chain A11 that travels in the direction of arrow y. The receiving device A20 is provided with a first rear end holding member A21 and a second rear end holding member A22 that alternately hold the rear ends of the articles X... X held in the bucket A10. The front ends of the rear end holding members A21 and A22 are formed in a comb shape so as to be able to cross each other. The rear end holding members A21 and A22 can be moved horizontally by the motors A23 and A24 and vertically moved by the cylinders A25 and A26, respectively, and move along a locus indicated by a one-dot chain line. Yes.

  According to the transport device A, when the articles X are sequentially received in the bucket A10 in a standing posture at the upstream receiving position and reach a predetermined number, the articles X... X are transported to the downstream discharge position and then discharged. Will be boxed. In that case, the first and second rear end holding members A21, A22 perform the box motion of the trajectory, and alternately hold back and forth to hold the rear end of the articles X ... X accommodated in the bucket A10.

  That is, first, as shown in the figure, the first rear end holding member A21 holds the rear end of the article X ... X held in the bucket A10, while the second rear end holding member A22 receives the new article X1. Waiting. When a new article X1 is supplied to the receiving space formed by both rear end holding members A21 and A22, the endless chain A11 travels in the direction of the arrow y by a predetermined pitch, and the first rear end holding member A21 is As the second rear end holding member A22 moves forward, the second rear end holding member A22 holds the rear end of the articles X ... X including the new article X1. The first rear end holding member A21 that has moved up continues to retreat and move downward, and waits for a new article to be received.

  In this way, the first and second rear end holding members A21, A22 can be quickly and alternately replaced to hold the last end of the articles X ... X on the bucket A10, and thus the article receiving in the receiving device A20. Thus, the speed of the transfer apparatus A can be increased.

JP 2003-212338 A

  By the way, in the above-described transport device A, in order to cause the first and second rear end holding members A21, A22 to perform the box motion, each of the rear end holding members A21, A22 has two driving means, that is, first driving means. One rear end holding member A21 must be provided with one motor A23 and one cylinder A25, and the second rear end holding member A22 must be provided with one motor A24 and one cylinder A26. There is concern over the complexity of drive control.

  Further, since the rear end holding members A21, A22 perform the box motion, the rear end holding members A21, A22 that have finished holding the rear ends of the articles X ... X are moved up substantially linearly, It takes time to move backward and move down to wait at a predetermined position, which causes a problem in further increasing the speed.

  Therefore, the present invention increases the speed of accepting articles with a small number of driving means when accepting relatively flat articles in a standing position in a standing position and transporting a predetermined number of articles to a discharge position in a stacked state. It is an object of the present invention to provide a transporting device that can perform the above and a boxing device including the same.

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

  In the first aspect of the present invention, the winding transmission member is configured to circulate along a predetermined path, and is connected to the conveyance unit to hold the articles in a stacked state from a predetermined receiving position. A conveying device having a holding means for transferring to a discharge position and a receiving means for receiving an article from outside the predetermined path to the holding means, wherein the receiving means includes the conveying at both side portions above the conveying means. A pair of winding transmission members provided so as to circulate on two surfaces parallel to the conveyance direction of the means and perpendicular to the conveyance surface, respectively, and a predetermined amount on each of the two surfaces attached to the winding transmission member. And at least two rear end holding members that move along the locus, and one rear end holding member is positioned on the front side of the receiving position and the other rear end holding member is positioned on the rear side. Acceptance of When the article is supplied to the receiving space in this state, the rear end holding member of the rear side advances to hold the rear end of the article held by the holding means and the rear end of the front side. Drive means for respectively driving the pair of winding transmission members so that the holding space is formed again when the holding member is retracted upward and the next rear end holding member is located behind the receiving position. It is provided.

  Next, the invention according to claim 2 is the invention according to claim 1, wherein the receiving means includes a plate member having a cam groove provided in parallel to a travel path of each of the winding transmission members, A cam follower that moves in the cam groove is provided, and the cam follower is connected to the winding transmission member.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, each winding transmission member of the receiving means is provided with a pair of rear end holding members at substantially equal intervals. It is characterized by being.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the path through which each winding transmission member of the receiving means circulates is from the front to the rear at the upper position. It is characterized by being substantially arc-shaped toward the bottom, and in the lower position, it is substantially straight in the downward direction at the rear, the upper side at the front, and the forward direction therebetween.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects of the present invention, one of the rear end holding members is located on the front side of the receiving position and is located on the holding means. When the receiving space of the article is formed by holding the rear end of the held article and the other rear end holding member located on the rear side of the receiving position, the front rear end holding member is The upper part of the rearmost end of the article held by the holding means is held.

  The invention according to claim 6 is a boxing device that transports the articles sequentially received at the receiving position in a stacked state and then discharges and boxes the articles at the discharge position. It is provided with the conveyance apparatus as described in above.

  First, according to the first aspect of the present invention, by independently driving each winding transmission member of the receiving means, the last of the articles held on the holding means by the rear end holding member provided on each winding transmission member. The ends can be alternately replaced and held, and the speed of accepting articles can be increased.

  Moreover, since each rear end holding member is driven by one driving means via the winding transmission member, the number of driving means is smaller than that of the conventional one that requires two driving means for each rear end holding member. Thus, the speed of accepting articles can be increased, thereby reducing the cost and simplifying the drive control.

  Next, according to the invention described in claim 2, since the cam groove and the cam follower are provided and the cam follower is connected to the winding transmission member, the circulating travel of the winding transmission member in the receiving means is stabilized. . In this case, since the cam groove and the cam follower are relatively simple structures, the cost is not increased.

  The combination of the cam groove and the cam follower allows the rear end holding member attached to the winding transmission member to be maintained in a vertical posture so that the rear end holding member flutters and is a peripheral member. Stable movement is ensured without interference. Furthermore, since the rear end of the article held by the holding means is held by the rear end holding member in the vertical posture, the rear end of the article can be more reliably held in the standing posture.

  Further, according to the invention described in claim 3, since the number of rear end holding members for holding the rear end of the article held by the holding means is doubled, the receiving speed can be doubled, thereby further increasing the speed. Realized. In addition, since the pair of rear end holding members are provided at substantially equal intervals in each winding transmission member, the operation control of the rear end holding members is simplified as compared with a case where the rear end holding members are not provided at equal intervals.

  According to the invention described in claim 4, the shape of the travel path of the winding transmission member and, consequently, the rear end holding member is embodied. That is, at the upper position, a section is provided in which the rear end holding member moves in a substantially arc shape, so that the rear end holding member can be moved upward, backward, and downward as in the conventional case. Movement is accelerated. Furthermore, the movement of the rear end holding member becomes smooth, fluttering is further prevented, and interference with surrounding members is further prevented.

  On the other hand, at the lower position, there is a section in which the rear end holding member moves in a substantially straight line, so that one rear end holding member retreats in a substantially straight line and the other rear end holding member is in a substantially straight line. By moving forward, the rear end of the article held by the holding means can be held quickly and alternately between the two rear end holding members.

  According to the fifth aspect of the present invention, when one rear end holding member retracts upward in response to advancing of the other rear end holding member from a state where the rear end holding member holds the rear end of the article. By slightly moving up, interference between the rear end holding members is avoided. If it is flipped, the rear end holding member of the rear side can hold the rear end of the article with the front rear end holding member until it approaches, so that the posture of the article held by the holding means at the time of replacement does not collapse. .

  According to the sixth aspect of the present invention, since the transport device having the above-described characteristics is provided, a boxing device that can be speeded up with a small number of driving means is realized.

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

  As shown in FIGS. 1 and 2, the boxing device 1 transports a relatively flat packaged article such as snack confectionery supplied from an upstream bag-making packaging machine and delivers it to the downstream side. The apparatus 10, the stacking and transporting apparatus 20 that receives articles from the delivery transporting apparatus 10 at the receiving position P1 and transports a plurality of articles to the discharge position P2 in a stacked state, and the articles transported by the stacking and transporting apparatus 20 And a boxing table 40 for packing the articles discharged by the discharging apparatus 30 in a cardboard box.

  The delivery conveyance device 10 converts an article supplied in a horizontal posture into a standing posture during conveyance, and is supported by the base member 10a and the case member 10b on the upstream side as shown in FIGS. A first conveyor 110 having a horizontal traveling surface, a second conveyor 120 disposed on one side (left side in the illustrated example) and above the first conveyor 110 and having a vertical traveling surface, and the second conveyor 120 There is provided a third conveyor 130 having an inclined traveling surface disposed in an opposing manner. Further, on the downstream side, a fourth conveyor 140 whose traveling surface is horizontal and fifth and sixth conveyors 150 and 160 whose traveling surfaces are vertically opposed to each other across the fourth conveyor 140 are provided. Yes.

  The running surface of the first conveyor 110 is formed by a flat belt 111 and is driven by a motor 112. The running surface of the second conveyor 120 is formed by a flat belt 121 and is driven by a motor 122. The running surface of the third conveyor 130 is formed by a flat belt 131 and is driven by a motor 132. The running surface of the fourth conveyor 140 is formed by a flat belt 141 and is driven by a motor 142. The running surface of the fifth conveyor 150 is formed by a flat belt 151 and is driven by a motor 152. The running surface of the sixth conveyor 160 is formed by a flat belt 161 and is driven by a motor 162.

  All of the conveyors 110, 120, 130, 140, 150, and 160 are arranged so as to rise slightly forward from the upstream side toward the downstream side as a whole. In particular, the traveling surface of the third conveyor 130 has a lower end located close to the side portion of the traveling surface of the first conveyor 110 at the upstream end, and the upper side of the traveling surface is inclined upward from the position toward the downstream side. 2 It is arrange | positioned so that the running surface of the conveyor 120 may approach.

  In FIGS. 3 and 4, imaginary lines are used as appropriate for the description of the members for the sake of convenience in order to avoid complication of the drawings. Moreover, the description of thickness is abbreviate | omitted in the flat belts 111, 121, 131, 141, 151, 161 of each conveyor 110,120,130,140,150,160. Moreover, the description of the top plate which supports each flat belt 111, 121, 131, 141, 151, 161 from the back surface is omitted. And in FIG. 4, in the 3rd conveyor 130 shown with the imaginary line, the inclination of the running surface is exaggerated and described.

  The third and sixth conveyors 130 and 160 on the right side along the conveying direction a can be adjusted with respect to the second and fifth conveyors 120 and 150 on the left side, and the above-mentioned is adjusted according to the shape of the article to be supplied. The interval is set. Especially the 3rd conveyor 130 can also adjust the inclination angle with respect to the 1st conveyor 110 below.

  The case member so that the traveling surface of the sixth conveyor 160 is maintained in a parallel state with the traveling surface of the fifth conveyor that is opposed via a parallel link mechanism (shown only in FIG. 3) 163 having link members 163a and 163a. It is supported by the extending portion 10c of 10b. The running surface of the sixth conveyor 160 is urged toward the running surface of the fifth conveyor 150 facing the air cylinder 164 attached to the extending portion 10c.

  The flat belts 111, 121, 151, and 161 provided on the first, second, fifth, and sixth conveyors 110, 120, 150, and 160 are made of a material having a small friction coefficient. On the other hand, the flat belts 131 and 141 provided on the third and fourth conveyors 130 and 140 are made of a material having a large friction coefficient.

  As shown in FIG. 5, the flat belt 111 provided on the first conveyor 110 is slightly wider than the rollers 115 that run the flat belt 111, and at both side edges along the conveying direction a. Engaging portions (only one is shown) 111a and 111a that engage with both ends of the roller 115 are provided. As a result, meandering of the flat belt 111 during travel is prevented, and the driving force of the roller 115 is transmitted over substantially the entire width of the flat belt 111. Although not shown, in the second, fifth, and sixth conveyors 120, 150, and 160, the flat belts 121, 151, and 161 have the same configuration as described above.

  The stacking / conveying device 20 shown in FIG. 6 transports the articles X in the standing posture received from the upstream delivery / conveying device 10 at the receiving position P1 to the discharging position P2 in the stacked state in the direction of the arrow b. A pair of upstream and downstream shafts 211 and 211 are rotatably supported, and four sprockets 212... 212 are assembled to each shaft 211. In that case, on the upstream shaft 211, the inner two sprockets 212, 212 are fixed and the outer two sprockets 212, 212 are rotatable. On the other hand, in the downstream shaft 211, the two inner sprockets 212 and 212 are rotatable, and the two outer sprockets 212 and 212 are fixed. Endless chains 213... 213 are wound between the sprockets 212.

  A pair of upstream and downstream motors 214 and 214 are installed below the main body case 20a, and the driving forces of the motors 214 and 214 are transmitted to the shafts 211 and 211 via timing belts 215 and 215, respectively. It has become. That is, the driving force of the motor 214 disposed on the upstream side is applied to the two inner sprockets 212 and 212, while the driving force of the motor 214 disposed on the downstream side is applied to the two outer sprockets 212 and 212. Each will be transmitted.

  Between the pair of inner endless chains 213 and 213 and between the outer endless chains 213 and 213, buckets 220 and 220 having the same configuration for holding and transferring the articles X in a standing state are connected to each other.

  As shown in FIG. 7 to FIG. 9, one bucket 220 has 13 bottom plates 221... 221 extending so as to be orthogonal to the conveying direction b, between inner endless chains 213 and 213 via spacers 222. Concatenated. In particular, the bottom plates 221 and 221 at both ends have an L shape in a side view and an upper portion in a comb shape in a front view, and the bucket 220 includes twelve articles X. Are held in a standing posture and in an accumulated state. Although not shown, the other bucket 220 is connected between the outer endless chains 213 and 213.

  As shown in FIG. 6, the delivery position P <b> 1 is delivered from the delivery transport apparatus 10 to a position that generally faces the delivery transport apparatus 10 across the transfer path of the articles X... X by the buckets 220 and 220. A receiving mechanism 230 for receiving the article X is provided.

  The receiving mechanism 230 is connected to an air cylinder 232 mounted in the main body case 20a via a bracket 231 and a tip of a rod in which the air cylinder 232 advances and retreats, and receives around the support shaft 233. A member 234 is provided.

  As a result, the receiving member 234 comes into contact with the article X delivered from the delivery / conveyance device 10 when closed as indicated by a solid line and stays on the bucket 220, while the article X passes when opened as indicated by a two-dot chain line. A sufficient opening is formed so that the article X is discharged out of the transfer system as indicated by an arrow c.

  For example, when the supply of the cardboard boxes to the boxing table 40 installed on the downstream side is delayed and the articles X cannot be boxed, the article accumulation in the bucket 220 is temporarily prohibited. By opening the receiving member 234, the article X from the upstream side can be temporarily forced out of the system.

  Further, when the stacking of articles in the bucket 220 is prohibited, the stacking / conveying device 20 is interlocked and the upstream bag making and packaging machine is stopped. May already be transported. Furthermore, when an inspection apparatus such as a seal checker or an X-ray inspection apparatus is installed on the conveyance path, the conveyance of the article X may not be stopped. Even in such a case, by providing the receiving mechanism 230, the inspection apparatus performs an inspection without stopping the conveyance of the article X, and the article X is out of the system instead of being accumulated in the bucket 220. It can be forcibly discharged.

  As shown in FIG. 6, the receiving position P <b> 1 is provided with a receiving device 240 for smoothly receiving the article X from the delivery transport device 10 into the bucket 220.

  As shown in FIGS. 10 to 12, the receiving device 240 is disposed above the transport path via the bucket 220, and is parallel to the transport direction b and sandwiches the bucket 220 and is perpendicular to both sides, that is, the transport surface. The rear end holding member drive mechanisms 241 and 241 are provided on the two surfaces, respectively.

  Each rear end holding member drive mechanism 241 includes a base plate 242 supported by the main body frame 20a, and a cam 243 attached to the base plate 242 and formed with cam grooves 243a and 243b having predetermined shapes. Each rear end holding member drive mechanism 241 includes a pair of cam follower bases 245 and 245 that rotatably support three cam followers 244A, 244B, and 244C that move in the direction of the arrow d in the cam grooves 243a and 243b. It has been.

  A shaft 246 extends from the respective cam follower bases 245 above the conveying path, and a pair of block members 247 and 247 are rotatably assembled to the shaft 246 near the cam follower base 245. A flat plate-like rear end holding member 248 having a lower portion in a comb-teeth shape is suspended and fixed to the front end of the head.

  As shown in FIG. 12, of the three cam followers 244A, 244B, 244C provided for one cam follower base 245, two cam followers 244A, 244B move in the cam groove 243a and the remaining When the cam follower 244C moves in another cam groove 243b disposed at a predetermined position, the moving cam follower base 245 is restricted to the posture shown in the figure, and as a result, the rear end holding member 248 has a predetermined posture, that is, a vertical position. The posture will be maintained.

  As shown in FIGS. 10 and 11, a motor 249 is attached to each base plate 242, and the driving force of the motor 249 rotates between the attachment plate 251 and the base plate 242 via a timing belt 250. It is transmitted to a shaft 252 that is freely supported. A pair of sprockets 253 and 253 are assembled to the shaft 252. A pair of endless chains 254 and 254 are wound around the upper sprockets 253 and 253 and the lower guide member (not shown). Note that a pair of endless chains 254 and 254 are provided for the rear end holding member driving mechanism 241 in order to more stably support the shafts 246 and 246 to which the rear end holding members 248 and 248 are assembled. is there.

  In that case, each endless chain 254 circulates in a direction indicated by an alternate long and short dash line in the arrow d direction in FIG. That is, the path is generally arcuate from the front to the rear at the upper position, and is substantially linear at the lower position, downward at the rear, upward at the front, and forward between them. Accordingly, the lower end portions of the rear end holding members 248 and 248 connected to the endless chains 254 and 254 move along a locus indicated by a symbol T and a two-dot chain line, and appear and disappear in an article receiving area indicated by a symbol S. In addition, it is possible to cross the upper portions of the bottom plates 221 and 221 at both ends of the bucket 220 described above.

The pair of endless chains 254 and 254 are connected to the pair of cam follower bases 245 and 245 via the block members 247. In that case, the endless chains 254 and 254 are provided with a pair of cam follower bases 245 and 245 at substantially equal intervals. That is, as shown in FIG. 13, in this receiving device 240, the four rear end holding members 248A ₁ , 248A ₂ , 248B whose upper end moves in the direction of the arrow d along the trajectory indicated by the symbol T ′ and a two-dot chain line. ₁ and 248B ₂ are provided in the order shown in the figure. The rear end holding members 248A ₁ and 248A ₂ are provided in one rear end holding member drive mechanism 241, and the rear end holding members 248B ₁ and 248B ₂ are provided in the other rear end holding member drive mechanism 241. It is a thing.

  Although a detailed configuration is applicable to the discharge device 30, it will not be described in detail. However, as shown in FIG. 6, the discharge device 30 disposed at the discharge position P <b> 2 extends to the receiving device 240. A linear bearing 310 that is orthogonal to the moving direction b of the bucket 220 and a slider 320 that slides along the linear bearing 310 in the directions of arrows e and f. A pusher member 340 having a U-shape in front view is attached via an air cylinder 330 in which a rod (not shown) advances and retreats on the front side and the back side in the example.

  That is, when the bucket 220 for transferring the stacked articles X... X arrives at the discharge position P2, in this case, the pusher member 340 positioned across the conveying surface moves forward in the direction of arrow e, and the bucket 240 is moved by one wall 240a. The articles X... X are scraped from 220 at the same time, and then the pusher member 340 moves up, retreats, and moves downward and then advances again in the direction of the arrow e, and this time, the article X. The boxing process is performed by pushing out in the direction of the cardboard box Y placed on the boxing table 40. When boxing is completed, the pusher member 340 moves up, retracts, moves down, returns to the home position, and waits for the next discharge.

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

  First, from the upstream bag-making packaging machine to the upstream end of the delivery / conveyance device 10, that is, the first conveyor 110 having a horizontal traveling surface, the second conveyor 120 having a vertical traveling surface, and the third conveyor 130 having an inclined traveling surface. When a relatively flat article X is supplied to the configured portion in a horizontal posture, as shown in FIG. 14A, one side of the article X (the left side in the example) is the first conveyor 110 below. The other side portion (also on the right side) is in contact with the inclined traveling surface of the third conveyor 130 in the vicinity of the traveling surface of the first conveyor 110. In addition, since the traveling surface of the third conveyor 130 faces upward and approaches the traveling surface of the second conveyor 120, the article X is moved toward the traveling surface of the second conveyor 120 and gradually changed from a horizontal posture to a standing posture. Will come to be.

  And as shown in FIG.14 (b), as the downstream end of this delivery conveyance apparatus 10 is approached, the running surface of the 3rd conveyor 130 goes further upwards, and further approaches the running surface of the 2nd conveyor 120. The article X is further moved toward the traveling surface of the second conveyor 120 by the traveling surface of the third conveyor 130 through the other side portion or a part of the flat surface, and rotated as indicated by an arrow so as to further stand. Thus, at the downstream end, it is sandwiched between the traveling surfaces of the second and third conveyors 120 and 130 and is in an upright posture on the traveling surface of the first conveyor 110.

  The article X in the standing position at the front stage is supported more securely by the fourth conveyor 140 provided with the horizontal running surface and the fifth and sixth conveyors 150 and 160 provided with the vertical running surface provided at the rear stage. In the standing posture, it is delivered to the downstream stacking and conveying apparatus 20.

In the receiving position P1, as shown in FIG. 15, as an example, four articles X1 to X4 are already accumulated in a standing posture on the bucket 220, and the upper end is the rear end of the article, that is, the upper part behind the article X4. rear holding member 248A ₁ which moves along a locus indicated by T 'holds. Rear holding member 248B ₁ subsequent to this is located on the rear side of the rear end holding member 248A _1, by both the rear end holding members 248A _1, 248B ₁ to form a narrow receiving space S 'from the article receiving area S Waiting for a new article X5. The remaining two rear end holding members 248A ₂ and 248B ₂ are located at predetermined positions on the locus T ′.

Next, when the new article X5 enters the receiving space S ′ in a standing posture, the pair of rear end holding members 248B ₁ and 248B ₂ move in the direction of the arrow on the locus T ′ as shown in FIG. That is, the rear end holding member 248B ₁ the preceding is the lower position of the trajectory T 'and slightly forward in a straight line, gather the article X5 on bucket 220 already as to be in close contact with the article X1~X4 direction are integrated . On the other hand, the subsequent trailing edge holding member 248B ₂ moves slightly upper position of the trajectory T 'in a substantially arcuate shape. The remaining pair of rear end holding members 248A ₁ and 248A ₂ maintain the current state.

Then, as shown in FIG. 17, at the same time the rear end holding member 248B ₁ holds the back of the rearmost end, that article X5 articles X1~X5 on bucket 220, the rear end holding member 248A ₁ is on the trajectory T 'arrow with it retracted from behind the article X4 moves upward in a substantially linear shape as indicated by the trailing end holding member 248A ₂ forms the receiving space S 'moves downward in a substantially linear shape as indicated by the arrow given Trying to go to the place.

Then, as shown in FIG. 18, the bucket 220 while moving by a predetermined pitch in the arrow b direction, the rear end holding member 248B ₁ which holds the rearmost end of the integrated article X1~X5, as shown by arrows Slightly moves forward and moves upward to hold the upper part behind the article X5. On the other hand, the subsequent rear end holding member 248A ₂ further moves down and advances as indicated by the arrow, and the rear end holding members 248A ₂ and 248B ₁ form the receiving space S ′ again, and the new article X6 Wait for acceptance. The rear end holding members 248A ₁ and 248B ₂ move on the locus T ′ as indicated by arrows in conjunction with the rear end holding members 248A ₂ and 248B ₁ .

  In the receiving device 240, such an operation is repeated, and the articles X from the delivery delivery device 10 on the upstream side are sequentially received in the bucket 220 in a standing posture. Then, when twelve predetermined articles X... X are accumulated on the bucket 220, the endless chains 213 and 213 travel all at once and transfer the bucket 220 from the receiving position P1 to the discharging position P2.

  Then, when the bucket 220 in which a predetermined number of articles X... X are stacked is transferred to the discharge position P2, the discharge device 30 is driven, and the articles X... X discharged by the pusher member 340 are stored in the boxing table 40. It is packed in a cardboard box Y.

  In this case, the pair of endless chains 254... 254 of the receiving device 240 are independently driven for each group, so that each group of endless chains 254 and 254 is provided as shown in FIGS. The rear ends of the articles X... X held in the bucket 220 by the rear end holding members 248, 248 can be alternately switched and held in each set, and the speed of receiving the articles X can be increased.

  Moreover, since the rear end holding members 248, 248 of each set are driven by one motor 249 via the endless chains 254, 254, the conventional one requiring two driving means for each rear end holding member is used. In comparison, it is possible to speed up the reception of the article X with a small number of driving means, thereby reducing the cost and simplifying the drive control.

  Next, since the cam grooves 243a and 243b and the cam followers 244A, 244B and 244C are provided and the cam followers 244A, 244B and 244C are connected to the endless chain 254, the circulating travel of the endless chain 254 in the receiving device 240 is stabilized. The In that case, the cam grooves 243a and 243b and the cam followers 244A, 244B, and 244C have a relatively simple configuration, so that the cost is not increased.

  Then, as shown in FIG. 12, the rear end holding member 248 attached to the endless chain 254 and maintained in the vertical posture can be maintained by the combination of the cam grooves 243a and 243b and the cam followers 244A, 244B and 244C. Accordingly, the rear end holding member 248 flutters and does not interfere with surrounding members, and stable movement is ensured. Furthermore, since the rearmost end of the article X ... X held in the bucket 220 is held by the rear end holding member 248 in the vertical posture, the rear end of the article X ... X is more reliably held in the standing posture. Is possible.

  Further, since the rear end holding members 248... 248 for holding the rearmost ends of the articles X... X held in the bucket 220 are provided in total, as compared with the conventional rear end holding members having two. The receiving speed can be doubled, and further speedup is realized. In addition, since the pair of rear end holding members 248, 248 are provided at substantially equal intervals in each endless chain 254, 254, the operation control of the rear end holding members 248, 248 is performed compared to the case where they are not provided at equal intervals. Simplified. It should be noted from the description of FIG. 10 that the number of the rear end holding members 248... 248 is four or two and only two motors 249 and 249 are required.

  Further, the shape of the travel path of the endless chain 254 and the rear end holding member 248 is embodied as the trajectories T and T ′, and a section in which the rear end holding member 248 moves in a substantially arc shape is provided at the upper position. The movement of the rear end holding member 248 is speeded up as compared with the conventional case of moving up, moving backward, and moving down linearly. Further, the movement of the rear end holding member 248 becomes smooth, fluttering is further prevented, and interference with surrounding members is further prevented.

  On the other hand, at the lower position, there is a section in which the rear end holding member 248 moves in a substantially straight line. Therefore, as shown in FIGS. 16 and 17, one rear end holding member 248 is moved in a substantially straight line upward. While retracting, the other rear end holding member 248 advances substantially linearly, so that the rear end holding of the articles X... X held in the bucket 220 quickly and interfere between the rear end holding members 248 and 248. It can be done without alternation.

  Further, when one rear end holding member 248 is retracted upward in response to advancing of the other rear end holding member 248 from a state where the rear end holding member 248 of the article X. Therefore, interference between the rear end holding members 248 and 248 is avoided. When the rear end holding member 248 approaches, the rear end holding member 248 at the front side can hold the rear end of the article X... X, so that the article X held in the bucket 220 at the time of replacement. The posture of X will not collapse.

  Since the stacking and conveying apparatus 20 having the above-described features is provided, the boxing apparatus 1 that can be speeded up with a small number of driving means is realized.

  In addition to the embodiment described above, the seal check of the bagged article X may be performed by interlocking the delivery transport device 10 and the receiving mechanism 230 in the stacking transport device 20. That is, when the article X is sandwiched between the fifth conveyor 150 at the rear stage of the delivery conveyance device 10 and the sixth conveyor 160 provided with the parallel link mechanism 163, the pressing reaction from the article X acting on the sixth conveyor 160 is suppressed. When the force is detected and it is determined that the seal is defective based on the pressing reaction force, the receiving mechanism 230 is driven to open the receiving member 234, and the article X can be forcibly discharged out of the transfer system.

  Further, instead of the openable receiving member 234, a fixed receiving member 234 'may be used as shown in FIG. By the way, in the case of such a receiving member 234 ′, the article X that rushes in the direction of arrow a from the upstream delivery conveying device 10 recedes to the delivery conveying device 10 side by reaction after contact with the receiving member 234 ′. If the position of each article X accumulated in the bucket 220 on the receiving member 234 'side may vary, a part of the articles X may be indicated by a two-dot chain line due to vibration during intermittent movement of the bucket 220 in the arrow b direction. Further, it may further retract and project, and the transport posture may be disturbed, or in an extreme case, the bucket 220 may drop off.

  In such a case, the problem can be solved by reducing the height of the bucket 220 on the front side of the article entry. That is, for example, as shown in FIG. 20, the height of the spacer 222 'on the front side (right side in the example) connecting the bottom plate 221' of the bucket 220 'and the endless chains 213 and 213 is set to the rear side (also on the left side). ) Spacer 222 ″. Alternatively, the height of the endless chain 213 on the front side of the rush that pulls the bucket 220 ′ is slightly lower than that of the endless chain 213 on the rear side of the rush. May be.

  As a result, as shown in FIG. 21, the height of the bucket 220 ′ on the front side of entry is set low, so that the article X that enters from the delivery / conveyance device 10 in the direction of the arrow a is in contact with the receiving member 234 ′. Each article accumulated after entering due to vibration during intermittent conveyance in the direction of arrow b, even if there is an article X that is about to retract, even if there is an article X that tends to move backward due to reaction after contact. The front positions of X are aligned and stabilized on the front side of the rush, and the above-described concern about the phenomenon is solved.

  When there is a concern about friction between the receiving member 234 ′ and the front side of the articles X... X accumulated in the buckets 220 and 220 ′ during the intermittent driving, for example, a fixed receiving member 234 ′. A conveyor type may be used instead. Thereby, the problem of friction is solved, and smoother article conveyance is realized.

  As described above, according to the present invention, when a relatively flat article is received in a standing position at the receiving position, and when a predetermined number of articles are conveyed to the discharge position in a stacked state, the article can be reduced with a small number of driving means. A conveyance device capable of speeding up reception and a boxing device including the same are provided. That is, the present invention relates to a conveying device that conveys a relatively flat article received at an upstream receiving position to a downstream discharging position in an accumulated state while maintaining an upright posture, and a boxing device including the same. It is widely suitable for the technical field of processing.

It is a schematic side view of the boxing apparatus concerning an embodiment of the invention. It is also a plan view. It is a top view of a delivery conveyance apparatus. It is an arrow view from the II direction of FIG. It is a figure which shows the structure of the flat belt of a 1st conveyor. It is a top view of an accumulation conveyance device and a discharge device. It is a top view of a bucket. It is an arrow line view by the III-III line of FIG. It is an arrow view from the IV direction of FIG. It is a front view of a receiving device. It is an arrow view by the VI-VI line of FIG. FIG. 5 is an essential part extraction diagram for explaining the movement path of the cam follower and the attitude control of the rear end holding member. It is a somewhat typical figure which shows the arrangement | positioning state of a rear-end holding member. It is a somewhat schematic diagram for explaining the standing operation of the article in the delivery / conveyance device, where (a) shows the state in the vicinity of the upstream end, and (b) shows the state in the vicinity of the downstream end. It is a figure for demonstrating operation | movement of a receiving apparatus, Comprising: The state which waits for reception of a new article | item is shown. Similarly, a state in which a new article is received and moved forward is shown. Similarly, it shows a state where preparations for receiving a new article are about to begin. Similarly, it shows a state where it is ready to accept a new article. It is a principal part top view at the time of using a fixed receiving member. It is a figure corresponding to FIG. 9 for demonstrating the structure of the bucket inclined to the rush front side of articles | goods. It is a figure corresponding to FIG. 19 for demonstrating the effect | action of the bucket which eliminated the problem in a fixed receiving member. It is a side view of the conventional receiving apparatus.

Explanation of symbols

1 Boxing equipment 20 Accumulation and transportation equipment (conveyance equipment)
213 Endless chain (conveying means side winding transmission member)
220 bucket (holding means)
240 Accepting device (accepting means)
243 Cam (plate member)
243a, 243b cam grooves 244A, 244B, 244C cam followers _{248 (248A 1, 248A 2,} 248B 1, 248B 2) rear holding member 249 motor (driving means)
254 Endless chain (receiving means side winding transmission member)
P1 receiving position P2 discharging position S 'receiving space X goods

Claims (6)

  Conveying means in which a winding transmission member is configured to circulate along a predetermined path, holding means connected to the conveying means to transfer a predetermined group of articles from a predetermined receiving position to a discharging position, and the predetermined path A conveying device having a receiving means for receiving an article from the outside into the holding means, wherein the receiving means is parallel to the conveying direction of the conveying means and perpendicular to the conveying surface at both sides above the conveying means. A pair of winding transmission members provided so as to circulate on each of the two surfaces; and at least two rear end holding members attached to the winding transmission member and respectively moving on a predetermined locus on the two surfaces; And a rear end holding member is positioned on the front side of the receiving position and another rear end holding member is positioned on the rear side to form a receiving space for the article. When the article is supplied in between, the rear end holding member of the rear side moves forward to hold the rear end of the article held by the holding means, and the rear end holding member of the front side retreats upward, The conveying device is characterized in that it includes driving means for driving the pair of winding transmission members so that the receiving space is formed again when the rear end holding member is located behind the receiving position. apparatus.   The receiving means includes a plate member having a cam groove provided in parallel with a travel path of each winding transmission member, and a cam follower that moves in the cam groove, and the cam follower includes the winding follower. The transport device according to claim 1, wherein the transport device is connected to a transmission member.   The conveying device according to claim 1 or 2, wherein each winding transmission member of the receiving means is provided with a pair of rear end holding members at substantially equal intervals.   The path through which each winding transmission member of the receiving means circulates is generally arcuate from the front to the rear at the upper position, and at the lower position, the rear is downward, the front is upward, and the front is between them. The conveying apparatus according to any one of claims 1 to 3, wherein the conveying device is also substantially linear.   One of the rear end holding members is located on the front side of the receiving position to hold the rear end of the article held by the holding means, and the other rear end holding member is located on the rear side of the receiving position. 5. The front rear end holding member holds the upper part of the rear end of the article held by the holding means when an article receiving space is formed by the holding means. The conveying apparatus in any one of. 6. A boxing device that transports articles sequentially received at a receiving position in a group and then discharges them at a discharging position and packs them in a box. The transporting device according to any one of claims 1 to 5 is provided. A boxing device characterized by that.

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