JP7161772B2 - carton carrier - Google Patents

Description

The present invention relates to a carton conveying device.

A cartoner that automatically assembles boxes, puts products in the boxes, and packs the products into boxes. Cartons are temporarily received by a carton transfer auxiliary device and sequentially supplied to the next conveyor device. The conveyor device includes a pair of belts provided with locking projections arranged on both sides of the conveying path, and the front and rear of the carton are clamped and held by the respective locking projections.

Japanese Patent No. 4703672

For example, if the moving speed of the carton by the carton transfer auxiliary device and the moving speed of the conveyor device are supplied at the same speed, the locking attachment may collide with the corner of the carton and crush it.

The folding sack cartoner has a fixed orientation, and for example, there is a type in which it is raised rearward in the traveling direction and a type in which it is raised forward in the traveling direction. Conventional devices are often only compatible with one type. In order to avoid this, it is better to raise the carton at an angle of 90 degrees or more. Can not. Therefore, it cannot be applied to many kinds of products.

In addition, the conventional configuration may be difficult to handle small cartons.

The above-described problems are described as independent ones, and the present invention does not necessarily have to be able to solve all of the described problems, and it is sufficient if at least one of the problems can be solved. In addition, we intend to obtain the right for the configuration to solve this problem by filing a divisional application or making an amendment.

In order to solve the above-described problems, the carton conveying device according to the present invention includes (1) a carton unloading device that raises the folded carton to an open state and supplies it to the carton delivery device, the carton delivery device; a conveyor device disposed downstream of the carton delivery device, the carton delivery device comprising a holding member (U-shaped metal fitting) that holds the carton, and a feeding device that moves the holding member, The holding member includes a first arm portion and a second arm portion arranged along the conveying direction on the main body, and a claw portion protruding toward the second arm portion on a distal end side of the first arm portion. One diagonal end of the open carton is brought into contact with the main body side of the second arm, and the other end is brought into contact with the boundary between the first arm and the claw. The conveyor device has a first side belt portion and a second side belt portion arranged on both sides in the conveying direction, and the first side belt portion is attached to the surface of the first side belt A first attachment is provided, the second side belt portion includes a second attachment attached to a surface of the second side belt, and a distance between the first attachment and the second attachment is the same as that of the open carton. The feeding device has a length corresponding to the length in the conveying direction, and the feeding device initially moves the holding member forward toward the conveyor device at a speed lower than the conveying speed of the conveyor device, so that the carton The side surface located on the front side in the conveying direction of the carton is inserted into the first attachment and/or the second attachment so that the corner portion does not interfere with the first attachment and/or the second attachment, and then the speed is increased to attach the carton to the first attachment or the second attachment. catches up and raises the carton so that the holding member is separated from the carton while the carton is sandwiched and held between the first attachment and the second attachment.

In this way, when the carton is supplied to the conveyor device by the carton transfer device, it is possible to prevent the corners of the carton from contacting and crushing the attachment of the conveyor device. Moreover, since the holding member holds the carton, even a small carton can be held and supplied to the conveyor device. In addition, there are many types of cartons that can be handled, such as sack cartons that are open at both ends and one-touch cartons that can be raised to form a bottom. And the holding member corresponds to the U-shaped metal fitting of the embodiment.

(2) It is preferable that the first arm portion is positioned on the forward side in the conveying direction. By doing so, the carton of the first embodiment can be adapted to a forward-raising type carton that is raised rearward in the conveying direction.

(3) It is preferable that the first arm portion is positioned on the rear side in the transport direction. By doing so, the carton of the first embodiment can be adapted to a reverse upright type carton that is raised forward in the conveying direction.

(4) two first side belt portions, one second side belt portion, disposed between the two first side belt portions, and two holding members; It is good to arrange|position so that two said 1st side belt parts may be inserted|pinched. This is good because it can be applied to small cartons.

(5) The holding member preferably holds the carton by utilizing a repulsive force acting in the direction in which the carton is folded. With this arrangement, the holding member can hold the carton with a simple structure.

According to the present invention, it is possible to deal with various types of cartons, various types, and small-sized cartons.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows suitable one Embodiment of the carton conveying apparatus which concerns on this invention, (a) is the top view, (b) is the right side view, (c) is a figure which shows the carton for conveyance. It is a figure explaining an effect|action. It is a figure explaining an effect|action. FIG. 2 is a diagram showing another preferred embodiment of a carton conveying apparatus according to the present invention, where (a) is a plan view thereof, (b) is a right side view thereof, and (c) is a diagram showing cartons to be conveyed. . It is a figure explaining an effect|action. It is a figure explaining an effect|action.

Preferred embodiments of the present invention will now be described in detail with reference to the drawings. It should be noted that the present invention is not to be construed as being limited to this, and various changes, modifications, and improvements can be made based on the knowledge of those skilled in the art without departing from the scope of the present invention.

1 to 3 show a first preferred embodiment of a carton conveying device according to the invention. The carton conveying device picks up the stacked folded cartons 1 in a carton hopper (not shown), one by one from the top, and lifts and opens the cartons 1 at regular intervals. A conveyor device 30 for conveying and a carton transfer device 20 for supplying the carton 1 set by the carton unloading device 10 to the conveyor device 30 are provided.

The carton 1 is a sack carton with both ends opened. For example, as shown in FIG. A pair of narrow third side faces 3 and fourth side faces 5 are provided. A predetermined flap 7 (see FIG. 1(b)) is provided on both ends of each side surface that are not adjacent to each other. Further, the carton 1 in the folded posture is made into an open box-like state by raising the third side 3 and the fourth side 5 to stand up. The carton 1 is of a forward-raising type with the third side 3 and the fourth side 5 facing rearward in the conveying direction (falling forward in the conveying direction).

A carton take-out device 10 has a suction nozzle 12 at the tip of a robot arm 11 of a multi-axis robot. The robot arm 11 moves the suction nozzle 12 at the tip in a predetermined manner. Then, the suction nozzle 12 is positioned near the outlet of the carton hopper (not shown), and suction is performed while the suction surface of the suction nozzle 12 is in contact with the second side surface 4 of the carton 1 . As a result, the carton 1 positioned at the top of the carton hopper is sucked and held. Next, the robot arm 11 operates to move the suction nozzle 12 to the waiting position of the U-shaped fitting 21 of the carton transfer device 20 .

Then, by driving the robot arm 11, the suction nozzle 12 inserts and sets the carton 1 into the U-shaped metal fitting 21 while moving in a predetermined manner, and raises the carton 1 to open it at the time of this insertion. The carton 1 in the open state is set on the U-shaped fitting 21 in an oblique state in which the carton 1 is raised at less than 90 degrees and the third side surface 3 and the fourth side surface 5 are tilted forward.

As shown in FIG. 1(a), the carton delivery device 20 includes a U-shaped metal fitting 21 and a feeding device (not shown) for moving the U-shaped metal fitting 21 along a predetermined trajectory. As shown in FIG. 1(b), the U-shaped fittings 21 are arranged at two upper and lower positions to hold the carton 1 at predetermined upper and lower positions, thereby stably holding the open carton 1. As shown in FIG.

The U-shaped metal fitting 21 includes a strip plate-like main body 22 and h, and a first arm portion 23 and a second arm portion 24 projecting outward from one long side of the main body 22 . Furthermore, the tip of the first arm portion 23 is provided with a claw portion 25 projecting toward the second arm portion 24 side. The main body 22, the first arm portion 23, the second arm portion 24 and the claw portion 25 are integrally formed. Furthermore, in this embodiment, the first arm portion 23 is positioned on the front side of the conveying direction of the carton 1 in the conveyor device 30, and the distance between the first arm portion 23 and the second arm portion 24 is length, that is, a little longer than the length of the first side surface 2 and the second side surface 4. Furthermore, the distance between the tip of the claw portion 25 and the second side surface 4 is also equal to or longer than the front-rear length of the carton 1 .

As described above, the carton unloading device 10 inserts and sets the carton 1 into the U-shaped fitting 21 having such a configuration. At this time, the carton unloading device 10 moves the folded carton 1, for example, in a slanted posture, with the end side 6a (boundary between the first side surface 2 and the fourth side surface 5) on the side of the second arm portion 24, and then the second side. It is inserted into the space between the one arm portion 23 and the second arm portion 24, and the end side 6a is brought into contact with the base end of the second arm portion 24 (the portion rising from the main body 22). On the other hand, while moving the second side 4 toward the second arm portion 24 in the contact state, the other edge 6b (the boundary between the first side 2 and the fourth side 5) of the carton 1 is moved by the first arm. By moving into the space between the part 23 and the second arm part 24, the third side 3 and the fourth side 5 are raised to open the carton (the first side 2 and the second side 4 are separated). . Then, for example, the other edge 6b of the carton 1 is positioned near the boundary between the first arm portion 23 and the claw portion 25, the suction of the suction nozzle 12 is released, and the suction nozzle 12 is retracted. Then, the carton 1 urges the second arm portion 24, the first arm portion 23, and the claw portion 25 by the repulsive force that causes the carton 1 to return to the original folded state. Using this repulsive force, the open carton 1 is held in the U-shaped fitting 21.例文帳に追加Therefore, the carton 1 can be held upright without supporting the bottom side. In addition, in order to hold the carton 1 in the U-shaped bracket 21 by utilizing the repulsive force, the third side 3 and the fourth side 5 are raised at an acute angle, and should not be raised up to 90 degrees. I have to.

Further, the pair of vertically arranged U-shaped metal fittings 21 are moved forward from the standby position (FIGS. 1(a) and 2(a)) toward the next conveyor device 30 by the feeding device, and then After moving in a lateral direction perpendicular to the conveying direction and away from the conveying line and evacuating, it retreats in the direction opposite to the conveying walk, and then returns to the standby position. For example, this feeding device preferably transmits the outputs of two servomotors to the U-shaped metal fitting 21 through a power transmission mechanism. As an example, the output shaft of the first servo motor cooperates with a belt arranged along the conveying direction, and the belt moves forward and backward along the conveying direction as the first servo motor rotates forward and backward. , the U-shaped fitting 21 linked to a predetermined position of the belt through a predetermined connecting member moves forward and backward. A ball screw is attached to the output shaft of the second servomotor that rotates forward and backward. The shaft of the ball screw is arranged so as to extend in a direction perpendicular to the conveying direction. As a result, by linking the U-shaped metal fitting 21 to the ball screw, the U-shaped metal fitting can be moved toward and away from the transfer line corresponding to forward and reverse rotation of the second servomotor. In this way, the drive source for moving forward and backward along the conveying direction and the drive source for moving toward and away from the conveying line are separately arranged, and the movement speed is controlled by using servo motors for each. Variable control becomes possible easily.

The conveyor device 30 conveys the opened carton 1 in an upright state at a predetermined pitch while sandwiching the carton 1 from both the left and right sides with side belts. In this embodiment, the first side belt portion 31 on the right side is attached so as to extend over the first timing pulleys 34 (only the upstream side is shown in the figure) positioned before and after the conveying direction and the first timing pulleys 34 . A first side belt 32 and first attachments 33 attached to the outer peripheral surface of the first side belt 32 at a predetermined pitch are provided. The first side belt 32 is an endless timing belt having teeth on its inner peripheral surface that mesh with the unevenness formed on the outer peripheral surface of the first timing pulley 34 . In the drawing, tooth portions formed on the inner peripheral surface of the first timing pulley 34 are omitted except for a portion that meshes with the first timing pulley 34 .

Further, the first attachment 33 has a substantially isosceles trapezoid in a plane cross section. This first attachment 33 contacts the third side surface 3 located on the front side in the conveying direction of the supplied carton 1 .

Further, as shown in FIG. 1(b), two first side belt portions 31 are arranged with a predetermined space therebetween. As a result, the first side belt portion 31 comes into contact with two upper and lower portions of the carton 1 which is open and stands upright.

In addition, as is clear from FIG. 1B and the like, in this embodiment, the two U-shaped metal fittings 21 are arranged on the side of the second side belt portion 41 of the conveyor device 30, and the first arm portion 23 and the second The tips of the two arm portions 24 are arranged on the upper and lower outer sides of the two first side belt portions 31 . By doing so, the three side belt portions can be arranged close to each other in the vertical direction, and the U-shaped bracket 21 can be made flat and thin as a whole, so that a small-sized carton can be used. It can be securely held, handed over, and transported.

On the other hand, the second side belt portion 41 includes second timing pulleys 44 (only the upstream side is shown in the drawing) positioned in front and behind in the conveying direction, and a second side belt attached so as to be stretched over the second timing pulleys 44. 42 and second attachments 43 attached to the outer peripheral surface of the second side belt 42 at a predetermined pitch. The second side belt 42 is an endless timing belt having teeth on its inner peripheral surface that mesh with the unevenness formed on the outer peripheral surface of the second timing pulley 44 . In addition, in the drawing, tooth portions formed on the inner peripheral surface of the second timing pulley 44 are omitted except for a portion that meshes with the second timing pulley 44 .

Further, the second attachment 43 has a substantially isosceles trapezoid in a plane cross section. This second attachment 43 contacts the fourth side surface 5 located on the rear side of the supplied carton 1 in the conveying direction. The distance between the first attachment 33 and the second attachment 43 is equal to the length of the carton 1 standing up at 90 degrees, that is, the length of the first side surface 2 and the second side surface 4 . By doing so, the carton 1 supplied by the carton transfer device 20 is sandwiched and held from the front and rear by the first attachment 33 and the second attachment 43, and conveyed in a positioned state.

Further, as shown in FIG. 1(b), one second side belt portion 41 is arranged, and its arrangement position is the middle of the vertical direction of the first side belt portions 31 arranged above and below. As a result, the second side belt portion 41 comes into contact with the vertically central portion of the opened carton 1 .

Furthermore, the interval between the first side belt 32 and the second side belt 42 is equal to the width of the carton 1 standing at 90 degrees, that is, the length of the third side 3 and the fourth side 5 . By doing so, the carton 1 supplied by the carton transfer device 20 is sandwiched and held by the belt surfaces of the both side belts from the left and right rear. Then, as described above, coupled with the holding by the first attachment 33 and the second attachment 43, it is conveyed without dropping while being firmly held.

Although not shown, there are a mechanism for closing the bottom by folding the flap located on the lower side, a mechanism for supplying products into the carton, and a lid by folding the flap located on the upper side. Equipped with a mechanism, etc.

Furthermore, in this embodiment, the first side belt portion 31 and the second side belt 42 are operated at the same speed.

In the present embodiment, the carton 1 is slanted in the U-shaped metal fitting 21, and the speed of the U-shaped metal fitting 21 is controlled so that the carton 1 is crushed by the first attachment 33 and the second attachment 43. The material is supplied in a timely manner between the first attachment 33 and the second attachment 43 of the conveyor device 30, and the material is transferred in an upright posture at 90 degrees. For example, the moving speed of the U-shaped fitting 21 is initially slightly slower than the moving speed of the attachment, and when the relationship with the attachment becomes predetermined (for example, when entering between the front and rear attachments), the carton 1 is accelerated and the carton 1 moves toward the attachment. and then move at the same speed. Therefore, when transferring the carton 1 held by the U-shaped metal fittings 21 to the conveyor device 30, the speed of the U-shaped metal fittings 21 is adjusted to prevent the edges of the carton 1 from hitting the front and back attachments and being crushed. The carton 1 is sandwiched and held between the front and rear first attachments 33 and the second attachments 43 by further increasing the speed and raising the carton 1 when the front edge 6b catches up with the first attachment 33. . At this time, the edge 6b of the fallen carton 1 can be separated from the claw portion 25, so that the U-shaped fitting 21 can be retracted. Specific control for performing such processing is performed, for example, as follows.

In FIG. 2, the two-dot chain line indicates the position of the second attachment 43, the line L1 indicates the position of the second attachment 43 that supports the carton 1 supplied in the previous process, and the line L2 indicates the position of the second attachment 43 this time. The position of the second attachment 43 which supports the rear side of the feeding carton 1 is shown. Since the second attachment 43 moves along the second timing pulley 44 in a circular arc position, the position is shown as it is developed on the extension line of the transfer line. As shown in FIG. 2(a), the second arm portion 24 of the U-shaped metal fitting 21 in the standby position is positioned on the line L2.

When the carton 1 is set in the U-shaped metal fitting 21 at the standby position shown in FIG. , moving speed of the second attachment 43). This speed control is performed, for example, by controlling the rotation speed of the first servomotor provided in the feeding device. As a result, for example, as shown in FIG. 2B, when the U-shaped metal fitting 21 approaches the conveyor device 30 and the inner peripheral surface of the first arm portion 23 approaches the first attachment 33, delay d. Due to this delay d, the other edge 6b of the carton 1 also has the same delay from the position of the first attachment 33, so even if the U-shaped metal fitting 21 is further moved forward, the carton 1 will still fall forward. The front side edge 6b of is supplied in a state of being located on the rear side of the first attachment 33 in the advancing direction without contacting the first attachment 33. As shown in FIG.

After that, the output of the first servomotor is increased, and the U-shaped metal fitting 21 advances into the conveyor device 30 while increasing the speed. This speed-up control is performed until the speed of the U-shaped metal fitting 21 becomes equal to the conveying speed of the conveyor device 30 (moving speed of the first attachment 33), and when it becomes equal, it moves forward at a constant speed.

Then, as shown in FIG. 2(c), the delay d is eliminated, and the second arm portion 24 coincides with the line L2 corresponding to the position of the second attachment 43. Then, as shown in FIG. At this time, the second attachment 43 is actually in a section moving along the second timing pulley 44, and as shown in FIG. are estranged.

2(b) to 2(c), although not shown, the edge 6b that has fallen before being caught by the claw portion 25 contacts the first attachment 33, and the third side surface 3 is raised so as to be 90 degrees with respect to the first side surface 2 . Since the boundary portion between the first side surface 2 and the third side surface 3 coincides with the position of the first attachment 33, in such a state of being raised by 90 degrees, as shown in FIG. It is located on the rear side of the tip of the portion 25 .

In the state shown in FIG. 2(c), the position of the edge 6a of the carton 1 and the phase of the second attachment 43 are aligned. ), as shown in FIG. As a result, the carton 1 is sandwiched and supported between the front and rear first attachments 33 and the second attachments 43 .

After that, the feeding device rotates the second servomotor at an appropriate timing, and the U-shaped metal fitting 21 moves in a direction perpendicular to the conveying direction, separates from the conveying line, and the U-shaped metal fitting 21 leaves carton 1. Thereby, the carton 1 is supported by the conveyor device 30 and conveyed.

4 to 6 show a second preferred embodiment of the carton conveying device according to the invention. In this embodiment, unlike the first embodiment, the carton 1' to be conveyed is a carton conveying apparatus that supports a reverse-turning type. That is, the carton 1' is a sack carton with both ends opened, and the carton 1 in a folded posture is erected forward in the transport direction (falls backward in the transport direction).

Due to the difference in the direction in which the carton 1 ′ is raised, the U-shaped metal fitting 21 ′ provided in the carton delivery device 20 is positioned so that the second arm portion 24 is positioned on the front side in the conveying direction, and the first arm portion 23 having the claw portion 25 is positioned. is located on the rear side. The carton unloading device 10 and the conveyor device 30 have the same configuration as in the first embodiment, so corresponding members are given the same reference numerals and detailed descriptions thereof are omitted.

Also in this second embodiment, the carton unloading device 10 inserts and sets the carton 1' into the U-shaped metal fitting 21' by placing the carton 1' in an oblique posture and The side 6a (the boundary between the first side surface 2 and the fourth side surface 5) is first inserted into the space between the first arm portion 23 and the second arm portion 24, and the end side 6a is inserted into the second arm portion 24. It is brought into contact with the proximal end (the part rising from the main body 22). On the other hand, while moving the second side 4 toward the second arm portion 24 in the contact state, the other edge 6b (the boundary between the first side 2 and the fourth side 5) of the carton 1 is moved by the first arm. By moving into the space between the part 23 and the second arm part 24, the third side 3 and the fourth side 5 are raised to open the carton (the first side 2 and the second side 4 are separated). . Then, for example, the other edge 6b of the carton 1 is positioned near the boundary between the first arm portion 23 and the claw portion 25, the suction of the suction nozzle 12 is released, and the suction nozzle 12 is retracted. Then, the carton 1 urges the second arm portion 24, the first arm portion 23, and the claw portion 25 by the repulsive force that causes the carton 1 to return to the original folded state. Using this repulsive force, the open carton 1 is held in the U-shaped fitting 21.例文帳に追加Therefore, the carton 1 can be held upright without supporting the bottom side. In addition, in order to hold the carton 1 in the U-shaped bracket 21 by utilizing the repulsive force, the third side 3 and the fourth side 5 are raised at an acute angle, and should not be raised up to 90 degrees. I have to.

As shown in the figure, the carton 1' held by the U-shaped fitting 21' is transferred to the conveyor device 30 with the third side 3 and the fourth side 5 tilted backward with respect to the conveying direction. At this time, also in the present embodiment, the carton 1' is tilted up in the U-shaped metal fitting 21' by controlling the speed of the U-shaped metal fitting 21' so that the carton 1' is moved to the first attachment 33. Also, without being crushed by the second attachment 43, the material is supplied between the first attachment 33 and the second attachment 43 of the conveyor device 30 with good timing, and is transferred in a 90-degree upright posture. At this time, the edge 6b of the fallen carton 1' can be separated from the claw portion 25, so that the U-shaped fitting 21' can be retracted without the claw portion 25 interfering with the carton 1'. Specific control for performing such processing is performed, for example, as follows.

In FIG. 5, the two-dot chain line indicates the position of the first attachment 33, the line L3 indicates the position of the first attachment 33 that supports the carton 1' supplied in the previous process, and the line L4 indicates the position of the first attachment 33. The position of the first attachment 33 that supports the rear side of the carton 1' to be supplied this time is shown. Since the first attachment 33 moves along the first timing pulley 34 along the arc, the position is shown as it is developed on the extension line of the transfer line. As shown in FIG. 5(a), the first arm portion 23 of the U-shaped metal fitting 21' in the standby position is positioned on the line L4.

When the cartons 1' are set in the U-shaped metal fittings 21' at the standby position shown in FIG. It moves forward at a speed lower than the moving speed of the first attachment 33 and the second attachment 43). 5(b), for example, when the U-shaped metal fitting 21' approaches the conveyor device 30 and the inner peripheral surface of the second arm portion 24 approaches the second attachment 43, the deceleration is reduced. produces a corresponding delay d. Due to this delay d, the edge 6a of the carton 1' also lags behind the position of the second attachment 43, so even if the U-shaped fitting 21' moves forward, the edge 6a of the carton 1' will not move. It is supplied to a predetermined position without being crushed by the second attachment 43 .

After that, the output of the first servomotor is increased, and the U-shaped metal fitting 21' advances into the conveyor device 30 while increasing the speed. This speed increasing control is performed until the speed of the U-shaped metal fitting 21' becomes equal to the conveying speed of the conveyor device 30 (moving speed of the second attachment 43).

Then, as shown in FIG. 5(c), the delay d is eliminated and the first arm portion 23 is aligned with the line L4 corresponding to the position of the first attachment 33. Then, as shown in FIG. At this time, the first attachment 33 is actually in the section where it is moving along the first timing pulley 34, and as shown enlarged in FIG. estranged from In addition, the second attachment 43 comes into contact with the leading edge 6a and biases it rearward in the conveying direction, so that the third side surface 3 rises with respect to the first side surface 2 at an angle of 90 degrees. Along with this, the third side surface 3 also rises at 90 degrees, and the third side surface 3 assumes a posture in contact with the inner peripheral surface of the first arm portion 23 .

Then, from the state of FIG. 5(c), the first attachment 33 reaches the transfer line, and the first attachment 33 comes into contact with the edge 6b of the carton 1. As shown in FIG. As a result, the carton 1 is sandwiched and supported between the front and rear first attachments 33 and the second attachments 43 . Then, as shown in FIGS. 5(d) and 6(b), the U-shaped fitting 21' is stopped, and the carton 1' supported by the front and rear first attachments 33 and the second attachments 43 is moved to the claw portions 25. It will be positioned more forward than

After that, the feeding device rotates the second servomotor at an appropriate timing, and the U-shaped metal fitting 21' moves in a direction perpendicular to the conveying direction, separates from the conveying line, and moves. 21' leaves the carton 1'. Thereby, the carton 1' is supported by the conveyor device 30 and conveyed.

In the above-described embodiment, the U-shaped metal fittings are held at two positions at both ends of the carton, but may be held at one position or at three or more positions. If it is in one place, it is better to make the part of the carton eclipse wider.

In addition, in the above-described embodiment and modified example, the carton is a sack carton with both ends opened, but it can also be applied to a one-touch carton that is formed so that the bottom is closed when the box is raised.

Furthermore, in the above-described embodiment and modified examples, a vertical cartoner is used in which the cartons are supplied and transported in a vertical position, but a horizontal cartoner in which the cartons are supplied and transported in a horizontal position may be used.

Various aspects of the present invention have been described above using embodiments and modifications, but these embodiments and descriptions are not intended to limit the scope of the present invention, but to aid in understanding the present invention. Please note that it is provided for your convenience. The scope of the invention is not limited to the constructions or methods of manufacture explicitly described herein, but rather includes within its scope combinations of the various aspects of the invention disclosed herein. While the claimed features of the invention are identified in the appended claims, any configuration not presently specified in the claims is disclosed herein. For the sake of clarity, it is possible that such a configuration may be claimed in the future.

1: Carton 1': Carton 6a: Edge 6b: Edge 10: Carton unloading device 11: Robot arm 12: Suction nozzle 20: Carton transfer device 21: U-shaped metal fitting 21': U-shaped metal fitting 22: Main body 23 : First arm portion 24 : Second arm portion 25 : Claw portion 30 : Conveyor device 31 : First side belt portion 32 : First side belt 33 : First attachment 41 : Second side belt portion 42 : Second side belt 43: Second attachment

Claims (5)

a carton take-out device for raising the folded carton to open it and supplying it to the carton delivery device;
the carton transfer device;
a conveyor device arranged downstream of the carton transfer device;
The carton delivery device includes a holding member that holds the carton and a feeding device that moves the holding member,
The holding member includes a first arm portion and a second arm portion arranged along the conveying direction on the main body, and a claw portion protruding toward the second arm portion on a distal end side of the first arm portion. One diagonal end of the open carton is brought into contact with the main body side of the second arm, and the other end is brought into contact with the boundary between the first arm and the claw. The conveyor device has a first side belt portion and a second side belt portion arranged on both sides in the conveying direction,
The first side belt portion includes a first attachment attached to the surface of the first side belt,
The second side belt portion includes a second attachment attached to the surface of the second side belt,
The distance between the first attachment and the second attachment is set to a length corresponding to the length of the open carton in the conveying direction,
The feeding device initially moves the holding member forward toward the conveyor device at a speed lower than the conveying speed of the conveyor device, so that the corners of the carton move toward the first attachment and/or the second attachment. By inserting it so as not to interfere with the attachment and then increasing the speed, the side surface located on the front side of the transport direction of the carton catches up with the first attachment or the second attachment, and the carton is raised. A carton conveying apparatus, wherein the holding member is controlled to move away from the carton in a state where the carton is sandwiched and held between the first attachment and the second attachment. 2. A carton conveying apparatus according to claim 1, wherein said first arm portion is positioned forward in the conveying direction. 2. A carton conveying apparatus according to claim 1, wherein said first arm portion is positioned rearward in the conveying direction. Two of the first side belt portions are provided,
The second side belt portion is provided with one, and is arranged between the two first side belt portions,
4. The carton conveying apparatus according to any one of claims 1 to 3, wherein two holding members are provided and arranged so as to sandwich the two first side belt portions. 5. The carton conveying apparatus according to any one of claims 1 to 4, wherein the holding member holds the carton by utilizing a repulsive force acting in the direction in which the carton is folded.

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