JP7056897B2 - Transport device - Google Patents

Description

The present invention relates to a transport device capable of changing the posture of an article while transporting the article.

Conventionally, in order to rotate an article conveyed by a conveyor by 90 ° in a plane, a method has been adopted in which a guide member is applied to the leading end thereof and the article is rotated around the guide member. Further, in the transport device described in Patent Document 1 (Japanese Patent No. 5889517), a rotating plate for pushing out an article in the rotational direction is arranged on the upstream side of the guide member, and the article is in contact with the guide member to rotate. I am assisting.

However, in the above-mentioned transport device, the article may be separated from the guide member while the article is rotating. In addition, since the article is pushed out by the rotating plate, the transport speed is limited and it is not possible to cope with high capacity.

An object of the present invention is to provide an article transporting device capable of realizing a stable posture change of an article without using a rotating plate.

The transport device according to the first aspect of the present invention includes a conveyor, a support wall, and a posture changing portion. The conveyor has a transport surface on which the bag-shaped article is placed and transported, and includes an inclined surface whose transport surface is inclined around a virtual axis parallel to the transport direction of the bag-shaped article with respect to the horizontal. The support wall supports the bag-shaped article along the transport direction on the lower side of the inclined surface in the inclined direction. The posture changing portion projects from the support wall side and hits a part of the bag-shaped article being transported on the inclined surface to change the flat transport posture of the bag-shaped article. The posture changing portion is a block-shaped or L-shaped member whose contact point with the bag is a flat surface, and has a corner portion that hits a part of the bag-shaped article being transported.

In this transport device, the bag-shaped article receives the component force of gravity in the tilt direction and therefore slides down in the tilt direction, but moves in the transport direction while being supported by the support wall and comes into contact with the posture changing portion. At that time, the bag-shaped article shifts to a posture rotated by 90 ° while rotating, but since it receives a component force downward in the inclination direction on the inclined surface, while the bag-shaped article is rotating. It never leaves the posture change part. Further, since the bag-shaped article is not extruded by another member, it is not necessary to set a limit on the transport speed, and it is possible to cope with high capacity.

Further, in this transport device, the contact with the bag-shaped article during transport becomes the resistance of the bag-shaped article to be transported at the corner rather than the arc, so that it is easy to give a propulsive force for 90 ° rotation.

The transport device according to the second aspect of the present invention is the transport device according to the first aspect, and further includes an article guide portion in which the posture changing portion extends from the corner portion along the transport direction.

In this transport device, the bag-shaped article hits the corner of the posture changing portion and is given a propulsive force of 90 ° rotation, so that the article guide portion extending from the corner along the transport direction is in the shape of a bag rotated by 90 °. Receives the article and maintains its posture after 90 ° rotation.

The transport device according to the third aspect of the present invention is the transport device according to any one of the first aspect and the second aspect, and the posture changing unit changes the posture of the bag-shaped article on the transport surface. Evacuate from above the transport surface when not needed.

In this transport device, when it is not necessary to change the posture of the bag-shaped article on the transport surface, the posture changing portion can be retracted from above the transport surface, so that it is easy to support the model and is easy to use.

In the transport device according to the present invention, the bag-shaped article receives the component force of gravity in the tilt direction and therefore slides down in the tilt direction, but moves in the transport direction while being supported by the support wall and comes into contact with the posture changing portion. At that time, the bag-shaped article shifts to a posture rotated by 90 ° while rotating, but since it receives a component force downward in the inclination direction on the inclined surface, while the bag-shaped article is rotating. It never leaves the posture change part. Further, since the bag-shaped article is not extruded by another member, it is not necessary to set a limit on the transport speed, and it is possible to cope with high capacity.

FIG. 3 is a block diagram of a boxing system equipped with a transport device according to an embodiment of the present invention. A perspective view showing the flow of cardboard boxes and articles in a boxing system. Front view seen from the horizontal direction orthogonal to the transport direction of a group of aligned bags. FIG. 3A is a front view of an aligned group of bags in an upright position. The perspective view which shows the arrangement state of the carry-in conveyor, the 1st alignment conveyor and the 2nd alignment conveyor. The front view of the arrangement state of the carry-in conveyor, the first line-up conveyor and the second line-up conveyor as seen from the position facing the transport direction of the bag on the carry-in conveyor. Front view of the posture when the bag falls from the carry-in conveyor when viewed along the tilt direction of the carry-in conveyor. Front view when the posture when the bag G falls from the carry-in conveyor when the contact surface between the carry-in conveyor and the bag G is instantly removed is viewed along the tilt direction of the carry-in conveyor. FIG. 4 is a perspective view of the carry-in conveyor, the first line-up conveyor, and the second line-up conveyor in a state where the contact surface with the bag of the carry-in conveyor is instantly removed. The perspective view which shows the bag before the attitude change operation on the carry-in conveyor. The perspective view which shows the bag in the posture change operation on the carry-in conveyor. The perspective view which shows the bag which completed the attitude change operation on the carry-in conveyor.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following embodiments are specific examples of the present invention and do not limit the technical scope of the present invention.

(1) Configuration of Boxing System 1 FIG. 1 is a block diagram of a boxing system 1 equipped with a transfer device according to an embodiment of the present invention. Further, FIG. 2 is a perspective view showing the flow of the cardboard box B and the articles in the boxing system 1. In FIG. 1, the boxing system 1 packs, for example, a bag-filled product (bag G) such as a snack confectionery into a cardboard box B in a fixed number and in a multi-stage arrangement.

As shown in FIG. 1, in the boxing system 1, three processes of a box making process P1, an article alignment process P2, and a boxing process P3 are linked.

The box-making process P1 is a step of assembling the sheet-shaped corrugated cardboard box material Z into the corrugated cardboard box B and transporting it to the box packing position, and is composed of a box material loading section 11, a box assembly section 12, and a box lower transport section 13. ing.

In the article alignment step P2, the bag G supplied from the upstream process is carried into a predetermined position, a certain number of bags G are aligned so that adjacent items partially overlap each other, and the bag G is conveyed to the boxing position. It is a process and is composed of an article carrying-in section 21 and an article aligning section 22.

The boxing step P3 is a step of packing a certain number of bags G that have been aligned in the article alignment step P2 into a cardboard box B transported from the box making step P1, closing the box, and transporting the bags to the box ejection position. Yes, it is composed of a box packing unit 31 and a box transport unit 32.

In the boxing system 1, the cardboard box B is packed in multiple stages of the bag G, and the posture of the bag G in the box B is the “standing posture”. That is, when the opening of the box B is turned upward, the front side and the back side of the bag G face sideways, the upper and lower ends of the bag G face up and down, and the left and right side parts face sideways. be.

(1-1) Box making process P1
As shown in FIG. 1, in the box-making process P1, the box material carry-in unit 11 for introducing the cardboard box material Z into the boxing system 1, the box assembly unit 12 for assembling the cardboard box B, the opening of the cardboard box B, and the ceiling. It is composed of a box lower transport unit 13 that changes its posture so that the flap Zfa and the flap Zfa are on the same vertical surface and transports the flap downward.

(1-1-1) Box material carry-in section 11
As shown in FIG. 2, the box material loading unit 11 sandwiches the topmost corrugated cardboard box material Z among the corrugated cardboard box materials Z stacked at the supply position one by one and sends it upward, and the delivered corrugated cardboard. Rotate the box material Z 90 ° around the vertical axis and spread it in a tubular shape.

The cardboard box material Z is placed in the supply position by the operator. The corrugated cardboard box material Z is folded in a state where the flap Zf is open, and the flap Zf is stacked in the horizontal direction in a posture in which the flap Zf is located in the vertical direction. For convenience of explanation, the flap Zf on the top surface side is referred to as a top flap Zfa, and the flap Zf on the bottom surface side is referred to as a bottom flap Zfb.

The upward transmission of the cardboard box material Z is performed by the elevating mechanism 111, and when all the cardboard box materials Z at the supply position are exhausted, the detection signal of the detection sensor (not shown) is sent to the controller 40 (see FIG. 1). Send.

Further, for the rotation of the cardboard box material Z around the vertical axis, the side surface of the cardboard box material Z is sucked and held by a suction cup by the suction rotation mechanism 112, and the suction rotation mechanism 112 is rotated around the vertical axis by a motor (not shown). It is realized by rotating 90 °.

(1-1-2) Box assembly unit 12
The box assembly unit 12 folds the bottom flap Zfb of the corrugated cardboard box material Z while horizontally transporting the corrugated cardboard box material Z spread out in a tubular shape and tapes the cardboard box B in a state where the top flap Zfa is open. assemble.

(1-1-3) Box lower transport section 13
The box lower transport section 13 rotates the cardboard box B by 90 ° around a horizontal axis orthogonal to the transport direction, and makes a posture so that the opening of the cardboard box B, the top flap Zfa, and the bottom flap Zfb are on the same vertical surface. After converting, it is transported downward. That is, the cardboard box B formed by the box assembly portion 12 is moved downward while maintaining the shape of the cube.

(1-2) Article Alignment Process A weighing device (not shown), a bag making / packaging machine, and the like are arranged in the upstream process in the flow of the bag G of the boxing system 1. Then, only the bag G that has passed the weight, sealing property, foreign matter contamination inspection, etc. in the upstream process is supplied to the boxing system 1.

The article alignment step P2 includes an article loading section 21 that receives the bag G and conveys it to a predetermined position, and an article aligning section 22 that aligns the bags G supplied from the article loading section 21.

(1-2-1) Goods carry-in section 21
The article carrying-in unit 21 has an article introducing conveyor 211 and an article carrying-in conveyor 212. The article introduction conveyor 211 receives the supply of the bag G that has passed the inspection on the downstream side of the process of performing the weight, sealing property, foreign matter contamination inspection, etc., and guides it to the carry-in conveyor 212.

The carry-in conveyor 212 conveys the bag G conveyed from the article introduction conveyor 211 to the article alignment unit 22. The details of the carry-in conveyor 212 will be described later.

(1-2-2) Article alignment unit 22
The article alignment unit 22 has a first alignment conveyor 221, a second alignment conveyor 222, and a third alignment conveyor 223. In order to receive the bag G falling from the carry-in conveyor 212, one end of the first line-up conveyor 221 is set at a position lower than the height of the tip of the carry-in conveyor 212, and the other end is set at a position lower than the height of the second line-up conveyor 222. Is set to.

The tip of the carry-in conveyor 212 is preferably located in the space directly above the article placing surface of the first alignment conveyor 221. Here, the article placing surface is a surface of the transport surface of the first aligning conveyor 221 that awaits the falling bag G.

Then, each time the first alignment conveyor 221 receives one bag G, the bag G is conveyed toward the second alignment conveyor 222 by a certain distance L. Therefore, the bag G approaches the second alignment conveyor 222 by a certain distance L from the dropped position. On the other hand, a part of the bag G that falls later lands on the first alignment conveyor 221 and the remaining part leans against the previous bag G and inclines.

For example, when N = 8 bags G as shown in FIGS. 3A and 3B described later are arranged as a group, the first bag G advances by 7 L from the position where the last bag G lands. Therefore, in the present embodiment, at least 4 (N / 2) bags G from the beginning of the row reach on the second alignment conveyor 222. Since the number of bags G reaching on the second alignment conveyor 222 varies depending on the size of the bags G, the length of the conveyor, and the like, it is limited to the numerical value of "4 from the top of the row" in the present embodiment. It's not a thing.

Further, the bags G on the first alignment conveyor 221 and the second alignment conveyor 222 are arranged in a row so that adjacent ones partially overlap each other.

After the bag G at the end of the row lands on the first alignment conveyor 221, the second alignment conveyor 222 and the third alignment conveyor 223 start operating, and the first alignment conveyor 221, the second alignment conveyor 222, and the second alignment conveyor 222 start operating. 3 The alignment conveyor 223 performs a transfer operation in the same direction. Therefore, the N bags G aligned in a row on the first alignment conveyor 221 and the second alignment conveyor 222 move to the third alignment conveyor 223 all at once and travel on the third alignment conveyor 223.

In the present embodiment, the transport directions of the carry-in conveyor 212 are arranged so that the transport directions of the first alignment conveyor 221 and the second alignment conveyor 222 and the third alignment conveyor 223 are orthogonal to each other. Therefore, it is possible to prevent the transport direction from becoming longer in the same direction, and further, the carry-in conveyor 212 without interfering with the transport of the bag G by the first line-up conveyor 221 and the second line-up conveyor 222 and the third line-up conveyor 223. Since a wall can be provided in front of the wall, the bag G can be applied to the wall to adjust the landing posture on the first conveyor 221.

(1-3) Boxing process P3
The boxing step P3 has a boxing unit 31 for packing the bag G in the cardboard box B, and a box transporting unit 32 for transporting the cardboard box B for which the boxing of the bag G has been completed.

(1-3-1) Boxing section 31
The boxing section 31 inserts the entire group of bags G into the cardboard box B with the head and tail of the group of bags G aligned in a row on the third alignment conveyor 223 sandwiched between them. As shown in FIG. 2, the boxing portion 31 has a blocking plate 311, a push plate 313, and an insertion plate 315 for sandwiching a group of aligned bags G.

The blocking plate 311 is provided on the downstream end of the third alignment conveyor 223 and blocks the progress of the bags G that are conveyed in a row. The blocking plate 311 is arranged so that the flat surface portion is always orthogonal to the transport direction of the bag G.

FIG. 3A is a front view seen from a horizontal direction orthogonal to the transport direction of the aligned group of bags G. Further, FIG. 3B is a front view of the aligned group of bags G of FIG. 3A in an upright state. In FIGS. 3A and 3B, the push plate 313 pushes the tail end of the N bags G arranged in a row, and is sandwiched between the blocking plate 311 and stands upright.

The push plate 313 is provided on the upstream end of the third alignment conveyor 223, but the flat surface portion is the bag G while the row of bags G is moving from the second alignment conveyor 222 to the third alignment conveyor 223. It is housed on the side of the third alignment conveyor 223 so as to be parallel to the transport direction of. Further, when the bag G at the end of the row completely moves from the second alignment conveyor to the third alignment conveyor 223, the push plate 313 rotates so that the flat surface portion is orthogonal to the transport direction of the bag G. Further, the push plate 313 pushes the bag G at the end of the row to bring the entire row toward the blocking plate 311 side.

At this time, since the blocking plate 311 is fixed, the bag G at the head of the row stands up along the flat surface portion of the blocking plate 311, and the next bag G stands up along the standing top bag. Since the subsequent bags G also stand in a chain in the same manner, the N bags G are aligned in the standing state.

Further, the boxing portion 31 pushes the N bags G in the upright state into the cardboard box B all at once via the insertion plate 315. The insertion plate 315 is located on the opposite side of the third alignment conveyor 223 from the position of the cardboard box B. When viewed from the second alignment conveyor 222 side, the opening surface of the cardboard box B is located on the right side of the third alignment conveyor 223, and is located on the left side of the third alignment conveyor 223.

The insertion plate 315 stands by with its flat surface facing the opening of the cardboard box B, and after the N bags G are in an upright state, they are pushed into the cardboard box B toward the opening surface, and N pieces are pushed. The bag G is inserted into the cardboard box B from the opening toward the bottom at once. The insertion plate 315 advances across the space between the blocking plate 311 and the push plate 313 to the opening surface of the cardboard box B.

(1-3-2) Box transport unit 32
The box transport unit 32 has a posture changing mechanism 321 that changes the posture of the cardboard box B packed with the bag G, and a discharge conveyor 322 that transports the cardboard box B.

The posture changing mechanism 321 rotates the cardboard box B so that the opening surface, which has been vertical until then, is horizontal, that is, the opening surface faces upward. The posture changing mechanism 321 is held by an L-shaped member with a suction plate that simultaneously sucks the side surface and the bottom surface of the cardboard box B, and the L-shaped member rotates by 90 ° to rotate the cardboard box B.

When the cardboard box B is rotated by 90 °, the posture changing mechanism 321 is placed on the discharge conveyor 322 with the opening surface facing up. The discharge conveyor 322 conveys the cardboard box B to a predetermined position, but before reaching the predetermined position, the top flap Zfa is folded in to close the opening surface, and the tape application is completed.

(2) Attitude adjustment of bag G As described in the article alignment step P2, the first alignment conveyor 221 transports the bag G toward the second alignment conveyor 222 by a certain distance L each time one bag G is received. Therefore, a part of the bag G lands on the first aligning conveyor 221 and the remaining part leans on the bag G and inclines, so that the adjacent ones form a line so as to partially overlap each other.

Conventionally, the bag G that has fallen from the carry-in conveyor 212 may come into contact with an article that has already been dropped immediately before landing on the first alignment conveyor 221 and slide and move, and the posture may be disturbed. This is because if the bag G that is transported horizontally falls in the horizontal posture as it is, the subsequent bag G will fall directly on the upper surface of the waiting bag G, so that it may bounce in a direction different from the target position. Responsible.

(2-1) Tilt of the carry-in conveyor 212 and the first line-up conveyor 221 Therefore, in the present embodiment, the posture suitable for landing on the first line-up conveyor 221 from the stage where the bag G is conveyed by the carry-in conveyor 212. The carry-in conveyor 212 is tilted so as to be.

FIG. 4 is a perspective view showing an arrangement state of the carry-in conveyor 212, the first alignment conveyor 221 and the second alignment conveyor 222. Further, FIG. 5 is a front view of the arrangement state of the carry-in conveyor 212, the first line-up conveyor 221 and the second line-up conveyor 222 as viewed from a position facing the transport direction of the bag G on the carry-in conveyor 212.

In FIGS. 4 and 5, the transport surface of the carry-in conveyor 212 is inclined with respect to the horizontal plane, and the bag G is supported at the lower end of the transport surface in the inclined direction to prevent the bag G from falling off, and the bag G is conveyed. A support wall 213 that guides in the direction is provided. Since the bag G moving on the upper side in the inclined direction of the transport surface receives the component force of gravity along the inclined direction, it slides down to the support wall 213 side while moving, and then moves along the support wall 213.

Further, the transport surface of the carry-in conveyor 212 is inclined by an angle θa in the counterclockwise direction with respect to the horizontal plane and around the virtual axis parallel to the transport direction in the front view of FIG. Further, the transport surface of the first alignment conveyor 221 is inclined by an angle θb with respect to the horizontal plane and around the virtual axis.

If the inclination angle θa of the transport surface of the carry-in conveyor 212 is θc, the relative angle between the bag G1 that first fell on the first alignment conveyor 221 and the bag G2 that fell next as the head of the row of bags G is []. θc = θa + θb], the inclination angle θa of the transport surface of the carry-in conveyor 212 is set.

By setting the angle θa in this way, the posture of the bag G3 when it is transferred from the carry-in conveyor 212 to the first alignment conveyor is such that the portion landing on the bag G2 already mounted on the first alignment conveyor 221 Since the portion directly landing on the first aligning conveyor 221 is inclined upward and downward so that the bag G3 comes into contact with the previously placed bag G2, or at the same time, the first aligning conveyor 221 Land on the conveyor surface of. At that time, since the frictional force between the first alignment conveyor 221 and the bag G3 exceeds the frictional force between the bag G3 and the bag G2, the bag G3 is suppressed from slipping at the time of landing, and the posture is avoided.

(2-2) Expansion and contraction of the tip of the carry-in conveyor 212 FIG. 6A is a front view of the posture when the bag G falls from the carry-in conveyor 212 when viewed along the tilt direction of the carry-in conveyor 212. In FIG. 6A, normally, when the falling bag G separates from the carry-in conveyor 212, the equilibrium between the previously separated portion and the portion still in contact with the carry-in conveyor 212 is lost, and the first separated portion is first. Landing and the posture is disturbed. The ideal drop is to maintain the posture when being conveyed on the carry-in conveyor 212.

Therefore, in the present embodiment, when the bag G reaches a predetermined position of the carry-in conveyor 212, the contact surface between the carry-in conveyor 212 and the bag G is instantly removed to take the opportunity to tilt the bag G and carry the bag G. I try to maintain the posture of time.

FIG. 6B is a front view when the posture when the bag G falls from the carry-in conveyor 212 when the contact surface between the carry-in conveyor 212 and the bag G is momentarily removed is viewed along the tilt direction of the carry-in conveyor 212. Is.

Further, FIG. 7 is a perspective view of the carry-in conveyor 212, the first line-up conveyor 221 and the second line-up conveyor 222 in a state where the contact surface of the carry-in conveyor 212 of FIG. 4 with the bag G is instantly removed.

In FIGS. 6B and 7, when the article detection sensor 215 detects that the bag G is conveyed to the downstream side of the carry-in conveyor 212 and the tip of the bag G reaches the tip of the carry-in conveyor 212, the carry-in conveyor 212 The tip roller R1 moves in the direction of the arrow D1. At this time, the intermediate roller R2 of the carry-in conveyor 212 moves in the direction of the arrow D2, so that the slack of the conveyor belt when the tip roller R1 moves in the direction of the arrow D1 is absorbed.

The tip portion of the carry-in conveyor 212 in a state where the tip roller R1 is moved in the direction of the arrow D1 is located in a space outside the space directly above the bag G placed on the transport surface of the first alignment conveyor 221.

That is, since the tip of the carry-in conveyor 212 momentarily moves to the upstream side of the bag G, the bag G suddenly loses the drag force from the transport surface of the carry-in conveyor 212, but the posture during transport is changed by inertia. Since it is maintained, it is unlikely that the tip of the bag G as shown in FIG. 6A will fall first.

Therefore, the landing posture on the first aligned conveyor 221 is likely to be maintained when the carrier is separated from the carry-in conveyor 212, and the posture disturbance at the time of landing is suppressed.

In the present embodiment, the moving distance of the tip roller R1 of the carry-in conveyor 212 is controlled by the controller 40. Therefore, the expansion / contraction distance of the tip of the carry-in conveyor 212 is adjusted according to the size of the bag G. Therefore, it is possible to handle various products with the same equipment.

(3) Changing the posture of the bag G Depending on the boxing specifications, the bag G conveyed by the carry-in conveyor 212 may be rotated by 90 ° in a plane.

In the present embodiment, a member (attitude changing member) for blocking transportation is applied to the leading end of the bag G, and the conventional method of rotating the bag G as a fulcrum is followed. 5 In front view, it is tilted around a virtual axis parallel to the transport direction and counterclockwise by an angle θa with respect to the horizontal plane, so that the conventional method of "moving away from the fulcrum while the bag G is rotating". Overcome the problem of.

FIG. 8A is a perspective view showing the bag G before the posture change operation on the carry-in conveyor 212. Further, FIG. 8B is a perspective view showing the bag G during the posture changing operation on the carry-in conveyor 212. Further, FIG. 8B is a perspective view showing the bag G after the posture change operation on the carry-in conveyor 212 is completed.

In FIG. 8A, the transport surface of the carry-in conveyor 212 is inclined with respect to the horizontal plane, and the support wall 213 is provided at the lower end of the transport surface in the tilt direction. It receives the component of gravity along the inclination direction, slides down to the support wall 213 side while moving, and then moves along the support wall 213.

In FIG. 8B, although it moves along the support wall 213, it comes into contact with the corner portion 214b of the posture changing member 214 protruding from the support wall 213 side, and the progress is blocked, but the transfer is continued. The bag G rotates as a fulcrum.

When the posture changing member 214 does not need to change the posture of the bag G, the posture changing member 214 stands by so that the guide surface 214a is flush with the wall surface of the support wall 213 as shown in FIG. Then, when it is necessary to change the posture of the bag G, the bag G projects toward the transport surface side of the carry-in conveyor 212 from the wall surface of the support wall 213. The protruding operation of the posture changing member 214 is performed by a motor (not shown).

The corner portion 214b of the posture changing member 214 to which the bag G hits may be either a fillet or a corner, but since the corner is a resistance to the transported article rather than an arc, it is easy to give a propulsive force for 90 ° rotation. However, in the present embodiment, a fillet is adopted to prevent the corner portion 214b from biting into the bag G in a wedge shape.

In FIGS. 8A to 8C, the posture changing member 214 is formed in a block shape, but may be made of sheet metal bent into an L shape.

Centrifugal force in the direction away from the fulcrum acts on the bag G during rotation, but since the bag G receives the component force of gravity along the inclination direction, the bag G rotates without moving away from the fulcrum.

In FIG. 8C, when the bag G is rotated by 90 °, the lateral seal side end of the bag G is supported by the guide surface 214a of the posture changing member 214, and the bag G is along the guide surface 214a of the posture changing member 214. And move.

Subsequent operations are the same as those already described.

(4) Modification example (4-1)
The inclination angle θb of the first alignment conveyor 221 can also be changed when the head of the group of bags G to be aligned is transferred.

Since the bag G at the head of the row does not lean on the other bags G, the landing posture is different from that of the subsequent bags G. Therefore, due to the equipment, the landing postures of the first bag G and the subsequent bag G may be different. In that case, when the tail end of the preceding row is discharged from the first alignment conveyor 221 and the bag G at the beginning of the new row is transferred to the first alignment conveyor 221, the inclination angle of the first alignment conveyor 221 is changed. Best timing.

(4-2)
The relative height position between the tip of the carry-in conveyor 212 and the article placing surface of the first alignment conveyor 221 can be changed according to the size of the bag G. If the combination of the height positions of the carry-in conveyor 212 and the first alignment conveyor is fixed for one product, it is unreasonable because the equipment must be prepared for each product. However, since the relative height positions of the carry-in conveyor 212 and the first alignment conveyor 221 can be changed according to the size of the product (bag G), it is possible to handle various products with the same equipment, which is convenient. Is good.

(5) Features (5-1)
In the carry-in conveyor 212, the bag G receives the component force of gravity in the inclined direction and therefore slides down in the inclined direction, but moves in the transport direction while being supported by the support wall 213 and comes into contact with the posture changing member 214. At that time, the bag G shifts to a posture rotated by 90 ° while rotating, but since the bag G receives a component force downward in the inclination direction on the inclined surface, the posture changing member while the bag G is rotating. You will never leave 214. Further, since the bag G is not extruded by another member, it is not necessary to set a limit on the transport speed, and it is possible to cope with a high capacity.

(5-2)
In the carry-in conveyor 212, the bag G hits the corner portion 214b of the posture changing member 214 and is given a propulsive force of 90 ° rotation, so that the guide surface 214a extending from the corner portion 214b along the transport direction is rotated by 90 °. Receive and maintain the posture after 90 ° rotation.

(5-3)
In the carry-in conveyor 212, when it is not necessary to change the posture of the bag G on the transport surface, the posture changing member 214 can be retracted from above the transport surface, so that it is easy to support the model and is easy to use.

1 Boxing system 212 Carry-in conveyor (conveyor)
213 Support wall 214 Posture change member (posture change part)
214a Guide surface (article guide section)
214b Corner (corner)
40 Controller (control unit)
G bag (article)

Japanese Patent No. 5889517

Claims (3)

A conveyor having a transport surface on which a bag-shaped article is placed and transported, and the transport surface includes an inclined surface inclined about a virtual axis parallel to the transport direction of the bag-shaped article with respect to the horizontal.
A support wall that supports the bag-shaped article along the transport direction on the lower side of the inclined surface in the inclined direction, and a support wall that supports the bag-shaped article along the transport direction.
A posture changing portion that protrudes from the support wall side and hits a part of the bag-shaped article being transported on the inclined surface to change the flat transport posture of the bag-shaped article.
Equipped with
The posture changing portion is a block-shaped or L-shaped member whose contact point with the bag is a flat surface, and has a corner portion that hits a part of the bag-shaped article being transported.
Transport device. The posture changing portion further includes an article guide portion extending from the corner portion along the transport direction.
The transport device according to claim 1. The posture changing portion retracts from the top of the transport surface when it is not necessary to change the posture of the bag-shaped article on the transport surface.
The transport device according to claim 1 or 2.

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