JP3236948B2 - Method and apparatus for taking out and opening a folded carton - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carton folded in a sheet shape, which is taken out one by one from a carton magazine, formed into an opening, and sent out to a carton conveying device provided in a small box packing machine or the like. The present invention relates to a method and an apparatus for taking out and opening a folding carton.

[0002]

2. Description of the Related Art As a carton take-out and molding apparatus for taking out cartons folded in a sheet shape one by one from a carton magazine, and opening the cartons into a rectangular tube shape during the take-out process to form a three-dimensional box. For example, JP-A-63-
There is an apparatus disclosed in 191725. This device is
In the vicinity of the front end of the carton magazine, where a large number of folded cartons are set up and stored horizontally in the state of standing,
A picker is provided that includes several arms that rotate horizontally by a vertical axis and suction pads that are respectively attached to the tips of the arms and that are connected to a suction device. Then, after a part of the carton is adsorbed by the suction pad of the picker, the arm is rotated around a vertical axis to open the carton to form an opening. Also, before the opening of the carton is formed by the picker, the sub-suction pad operated by the cylinder sucks the fold flap near the opening of the carton to slightly open the opening, and opens the carton in this opening. The insertion of the knife allows the picker to form the carton smoothly.

[0003]

In the above-described take-out molding apparatus, the folding cartons are arranged and stacked in the carton magazine with the opening portions of the folding cartons standing up and down. In this case, if the folding flaps located on the opening side of the folding carton are of a type in which the folding flaps project with substantially the same length, the accumulated state can be maintained in a stable posture, but some of the folding flaps may be replaced with other flaps. In the case of a carton of a type that protrudes more than that, it is not possible to maintain the accumulation state in a stable posture, and there is a problem that the usable type of carton is limited.

[0004] In addition, with today's diversification of consumer needs and the production and provision of many types of products, the time required for changing the type of carton in accordance with the type to be packed in a box is shortened, and the downtime of the production line is reduced. There is a demand to minimize as much as possible. However, in the take-out molding apparatus, at the time of product type change setting corresponding to a plurality of types of carton sizes having different heights, lengths, and widths, the suction position of a suction pad or a sub suction pad is determined according to the carton size. It is necessary to perform complicated work such as position adjustments, changing the settings of several arms provided on the vertical axis, changing parts, and replacing parts. Not only the operating rate is reduced, but also the operation becomes extremely complicated and requires skill.

[0005] The date of manufacture is printed on the outer surface of the carton by a printing device. Conventionally, this printing is performed after the carton is formed into a rectangular cylindrical opening. It is difficult to support the inner surface corresponding to the outer surface to be printed by the printing device, and there is a problem that the printing is performed in an unstable state. Further, when changing the carton size, it is necessary to adjust the position of the printing apparatus in a plurality of directions, and it is pointed out that the adjusting means becomes complicated.

[0006] In the take-out molding apparatus, the auxiliary opening means for adsorbing the folding flap and slightly opening the opening portion employs a structure in which the sub suction pad is opened at once by a cylinder. Therefore, in order to prevent the inside of the carton from being temporarily vacuumed at the time of opening, it is necessary to assist a smooth opening by separately providing a carton opening knife inserted into this opening, and the number of parts is large. However, there has been a problem that the configuration becomes complicated.

[0007]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems inherent in the prior art, and has been proposed to solve the problem suitably. Of cartons in a stable position in a carton magazine, and shortening the time required for product type change setting for multiple types of carton with different height, length and width dimensions, and improving the operating rate In addition, the structure of the means for opening the carton in the folded state is simplified to reduce the size of the apparatus, and furthermore, it is possible to reliably print the date of manufacture and the like on the carton, and to print the printing means according to the carton size. It is an object of the present invention to provide a method and an apparatus for taking out and opening a folding carton, which can simplify the structure of the adjusting means for adjusting the position of the folding carton.

[0008]

SUMMARY OF THE INVENTION In order to overcome the above-mentioned problems and to achieve the intended object, a method for taking out and opening a folded carton according to the present invention is provided by folding a folded carton from a group of aligned cartons into a sheet. A method of taking out one carton one by one and forming an opening into a cylindrical shape, wherein the cartons are aligned and collected in a carton magazine in a state where the opening side is directed sideways, and aligned and collected in the carton magazine. The cartons are sucked one by one from the group of cartons and taken out to the receiving position, the cartons taken out at the receiving position are gripped and transferred downward, and the cartons gripped and transferred to the lower transfer position are taken out. After holding the body by suction and releasing the grip on the side of the carton, the carton is
When the opening side is turned up and down by changing the direction of 0 °, the carton is moved when the body part moves the carton held by suction to the delivery position rearward in the suction moving direction intersecting with the gripping transfer direction. By controlling the movement of the folding flap protruding toward the opening side of the opening, the auxiliary opening is performed, and the carton pusher is advanced toward the carton from a direction intersecting the suction moving direction to press the carton in a contact state. The carton is formed into an opening in a cylindrical shape, and while the opening state of the carton opened in the cylindrical shape is maintained by the carton pusher, the carton is moved forward in the suction moving direction to the carton holding portion of the carton conveying device. It is characterized in that it is transmitted.

Further, in order to preferably carry out the above-mentioned method, a take-out opening device for a folded carton according to another invention of the present application comprises a carton folded in a sheet shape one by one from a group of aligned and stacked cartons. An apparatus for taking out and forming an opening in a cylindrical shape, comprising: a carton magazine which is arranged and supplied in a state where the carton is erected, and suction / extracting means for sucking and taking out the carton one by one from the carton magazine in a folded state. Equipped with a suction pad that can move forward and backward while holding one side of the removed carton by suction,
After the suction pad holding the carton by suction is retracted by a required amount, the suction pad is moved forward to send out the carton after being formed into a tubular shape to a predetermined position, and a carton by the suction movement means. A regulating member which is disposed on the suction moving path, and when the suction moving means sucks and holds the carton and moves backward, contacts a folding flap projecting toward the opening side of the carton to assist opening of the carton; The suction moving means is disposed so as to be able to move forward and backward in a direction intersecting with the suction moving direction, and moves forwardly toward the carton in synchronization with the backward movement of the suction moving means, so that the slightly opened carton can be laterally moved. A carton pusher that presses from above to form the carton into a cylindrical opening, and a reversible movement motor that moves the suction moving means forward and backward,
The moving motor is controlled to rotate at a first speed, which is a relatively low speed, to advance the carton formed into a cylindrical shape and move the carton to a predetermined position when the suction moving means moves backward by suction holding the carton. In the first speed control, the motor is set to be driven in reverse so as to perform the transmission at a higher speed than the first speed. The timing at which the speed is controlled to stop and the folding flap projecting toward the opening of the carton comes into contact with the regulating member is set so as to be during the acceleration rising period of the first speed control. .

Further, in order to preferably carry out the above-mentioned method, a take-out opening device for a folded carton according to still another invention of the present application comprises a carton folded in a sheet shape from a group of aligned cartons. A device for taking out one by one and forming an opening in a cylindrical shape, wherein the carton is a carton magazine that is aligned and accumulated in a state where the opening side thereof is directed sideways, and the carton is folded from the carton magazine. Suction take-out means for sucking and taking out one sheet at a time as it is, holding and transferring means for receiving and holding the carton taken out by the suction and take-out means, and holding and transferring the carton downward by a movement amount according to the carton size; It is possible to turn the carton 90 ° while holding one side of the carton gripped and transferred to the delivery position by the gripping transfer means. A suction pad movable forward and backward in a suction movement direction intersecting with the carton gripping transfer direction by the gripping transfer means, and after the carton is turned 90 °, the suction pad is retreated by a movement amount according to the carton size, Suction moving means for moving the carton after being formed into a tubular shape by a moving amount corresponding to the carton size and sending out the carton to the carton conveying device, and height adjusting the carton's suction moving path by the suction moving means. A regulating mechanism which is arranged so as to be able to move up and down freely through a mechanism, and which contacts the folding flap projecting toward the opening of the carton to assist the opening of the carton when the suction moving means sucks and holds the carton and moves backward. A member and a carton size are arranged so as to be able to move forward and backward in a direction intersecting the suction moving direction of the suction moving means, and in synchronization with the backward movement of the suction moving means. A carton pusher that presses the folded carton from the side by forming the carton into a tubular shape by moving forward toward the carton by an amount corresponding to the carton; It is characterized by comprising driving means for independently driving each of the pushers and driving means for driving the height adjusting mechanism of the regulating member.

[0011]

The carton taken out from the carton magazine to the receiving position is gripped and transferred to the lower transfer position, and then turned 90 ° while the body is being suction-held. That is, in the carton magazine, the carton folded in a sheet shape can be aligned and stacked in a state where the opening side is directed sideways, so that some of the folding flaps on the opening side protrude. The carton of the following type is also kept in a stable posture and the accumulated state. The posture is 90
When the carton is converted into a posture in which the opening side is turned up and down, the carton is assisted by the movement of the folding flap when moving backward with respect to the delivery position. Further, the carton is pushed toward the carton from a direction intersecting with the suction moving direction to press the carton in an abutting state, whereby the carton is formed into a cylindrical opening. Then, while maintaining the open state of the carton that has been opened in a cylindrical shape by the carton pusher, the carton is moved forward in the suction movement direction to be sent out to the carton holding section of the carton transport device.

[0012] While the carton taken out of the carton magazine is gripped and transferred to a lower delivery position, printing is performed on the carton. That is, since printing can be performed on the folded carton, reliable printing is achieved. In addition, when the folded carton is moved backward with respect to the delivery position, the carton is gradually accelerated to a relatively low first speed, and the movement of the folding flap is restricted during the acceleration. In addition, the auxiliary opening and the opening of the carton in the folded state are favorably formed.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a folding carton according to the present invention.

Prior to the description of the apparatus according to the embodiment, the schematic configuration of a carton to be handled by the apparatus will be briefly described. As shown in FIG. 28 (a), the carton 10 used in the present embodiment is opened vertically by providing a rectangular front plate 11, a side plate 12, a rear plate 13 and a side plate 14 continuously in the horizontal direction. A rectangular body is formed, and short side folding flaps 12a and 14a are formed at both ends on the opening side of the side plates 12 and 14 so as to be foldable, respectively. In addition, a long front folding flap 11a is formed at the upper end on the opening side of the front plate 11 so as to be foldable, and a short rear folding flap 13a is formed at the upper end on the opening side of the rear plate 13 so as to be foldable. At its lower end, a long rear folding flap 13b is formed so as to be foldable. The long folding flaps 11a and 13b formed on the front plate 11 and the rear plate 13 of the carton 10 are shown in FIG.
As shown in FIG. 2, when the carton 10 is folded into a sheet, the side folding flaps 12a and 14a are opened from the body opening side.
Projecting outward.

FIG. 1 shows a side view of a discharge opening device A,
A carton magazine B that arranges and stacks the folded carton 10 in a sheet shape with its opening side facing sideways is disposed above the machine frame 15. In this carton magazine B, the cartons 10 in a folded state are accumulated and stored in a state where the front plate 11 is directed to the downstream side of the magazine B in the carton transport direction. As shown in FIG. 7, the carton magazine B is provided with a pair of support frames 16, 16 which are separated in a direction intersecting with the direction in which the cartons 10 in the folded state are aligned and stacked, and an endless belt 17 is freely provided between the two support frames 16, 16. It is arranged so that it can run. Then, the folded cartons 10 are accumulated and stored on the endless belt 17 in a posture intersecting the belt running direction and tilting forward toward the downstream side. The carton group in the folded state is pushed from the upstream side by pushing means (not shown) so that the carton group 10 in the folded state on the downstream end side is pushed.
To be transported to a take-out position.

On both sides of the endless belt 17 intersecting the running direction, guide members 18, 18 are disposed so as to extend in parallel with the running direction, and the guide members 18, 18 are conveyed on the endless belt 17. It functions to guide the left and right ends of the folded carton group and to restrict the lateral misalignment of the carton group. Guide members 18, 18
When changing the carton size due to order change,
Position adjustment is performed via adjustment means (not shown) based on the left and right dimensions based on the folding line L shown in FIG. The adjusting means is operated and controlled by a type switching setting by a control device (not shown), and is configured to automatically adjust the positioning of the guide members 18. The support frame 16,
On the downstream side of the 16 carton transport direction, support rods 19, 19 for supporting the lower front end of the folded carton 10 are disposed so as to face a required height above the belt surface.
(See FIG. 7).

As shown in FIG. 3, a pair of side plates 20 and 21 are opposed to each other in a direction intersecting the conveying direction across the magazine B, as shown in FIG. Auxiliary side plates 22 are arranged in parallel outside the one side plate 20 at a predetermined interval. The inner surface of this auxiliary side plate 22 (side plate 20
As shown in FIG. 6, a pair of holders 23 and 24 which are vertically separated from each other and are deviated in the carton conveying direction and are opposed to each other are disposed on the The screw shaft 25 is rotatably disposed with its side inclined to the downstream side in the transport direction. Moving block 2 on screw shaft 25
6 is screwed together, and a holding bar 27 parallel to the conveying surface of the endless belt 17 is provided on the moving block 26 in a cantilever manner, and a shaft 28 provided on the holding bar 27 is provided.
In addition, a plurality of regulating rollers 29 are rotatably disposed apart from each other in the axial direction (see FIG. 7). This regulating roller 29
It functions to support the upper front end portion of the folded carton group accumulated and stored in the carton magazine B, and to hold the carton group in a forwardly inclined posture in cooperation with the support rods 19,19. When the regulating roller 29 moves the suction pads 30, 30 of the suction take-out device C, which will be described later, from the take-out position to the receiving position, the upper end of the folded carton 10 sucked and held by the suction pads 30, 30 is moved. , The lower end of the carton 10 also functions to reliably separate the carton from the folded carton group. The screw shaft 25 is connected to an adjustment motor 31 provided on the auxiliary side plate 22 by a chain-sprocket transmission system 41.
And the height position of the regulating roller 29 can be adjusted by driving the motor 31 forward and reverse. When the carton size is changed in accordance with the order change, the operation of the adjusting motor 31 is controlled by the type change setting in the control device, and the regulating roller 29 is controlled.
Is configured to automatically adjust the height position.

Side plate 20 on which the auxiliary side plate 22 is disposed
Further, there is provided an adsorbing and extracting device C as an adsorbing and extracting means for extracting the folded cartons 10 one by one from the folded carton group accumulated and stored in the carton magazine B. That is, as shown in FIG. 7, a housing 32 is provided so as to extend horizontally on the inner surface side of the side plate 20, and a lever shaft 33 is rotatably supported by the housing 32. The housing 3 of the lever shaft 33
The upper end of a lever 34 is attached to the front end extending outward from the free end of the second carton 10 so as to be integrally rotatable. The suction ports of the suction pads 30 are directed to the folded cartons on the endless belt 17.

One end of an operating lever 35 is connected to the rear end of the lever shaft 33 protruding outward from the side plate 20 so as to be integrally rotatable, and the other end of the operating lever 35 is connected to the side plate 2.
Air cylinder 3 disposed on the outer surface of
7 is rotatably connected to the piston rod 37a.
That is, by urging the air cylinder 37 in the forward and reverse directions, the lever 34 swings in the carton conveyance direction around the lever shaft 33, and the suction pad 3
0 and 30 are set to move between the unloading position (FIG. 16) and the receiving position (FIG. 17) of the carton 10 in the folded state. The suction pads 30, 30 are connected to a vacuum suction source (not shown), and the suction source is turned on at an appropriate timing.
By performing the -OFF control, both suction pads 30, 30
The suction holding and the suction release of the carton 10 in the folded state are performed.

Below the folded carton 10 which is taken out by the suction take-out device C and faces the receiving position,
A printing device E as printing means for printing the date of manufacture and the like is provided on a folded carton 10 gripped and transferred by a gripping transfer device D described later. This printing device E
Is a guide rail 3 erected between the side plates 20 and 21.
8 is provided with a print holder 39 slidably disposed, and the print holder 39 is configured to be horizontally moved in a direction intersecting the gripping / transporting direction of the folded carton 10 by an adjusting mechanism 44 as adjusting means. . That is, the adjusting mechanism 44 includes a screw shaft 40 rotatably mounted between the side plates 20 and 21 and screwed into the print holder 39. The screw shaft 40 is disposed on the side plate 21 as shown in FIG. The motor is connected to a provided adjusting motor 42 via a belt-pulley transmission system 43 including a toothed belt and a toothed pulley. Then, by driving the adjusting motor 42 in the forward and reverse directions, the print holder 39 is horizontally moved along the guide rail 38, so that the carton 10 in the folded state by the printing device E is
The print position on the printer can be changed.

As shown in FIG. 9, a first shaft 45 parallel to the screw shaft 40 is rotatably supported on the free end side of the print holder 39, and the print holder 39 of the first shaft 45 is rotatable. A printing roller 46 is disposed at an end protruding from one side so as to be integrally rotatable. Further, a second shaft 49 is provided above the print holder 39 via a bracket 48.
Is rotatably supported, and an ink roller 50 is disposed at an end of the second shaft 49 corresponding to the print roller 46 so as to be integrally rotatable. The print roller 46 and the ink roller 50 are in contact with each other via a transfer roller 51 rotatably disposed on the print holder 39. The ink roller 50 is formed of a material such as porous rubber or hard sponge impregnated with ink, and is configured to apply ink uniformly to the transfer roller 51 by rotating while being in contact with the transfer roller 51. . The surface of the transfer roller 51 is formed of a material such as silicone rubber, and transfers the ink applied from the ink roller 50 to the print roller 46. A required printing piece 46a made of metal is provided on the outer peripheral surface of the printing roller 46.
The date of manufacture is printed on the folded carton 10 with the ink transferred to a.

A metal roller 52 that moves in synchronization with the print holder 39 is rotatably disposed on the opposite side of the print roller 46 across the grip and transfer path of the folded carton 10 by the grip and transfer device D. As shown in FIG. 19, printing is performed by sandwiching the folded carton 10 between the metal roller 52 and the printing piece 46 a of the printing roller 46. As shown in FIG. 8, the roller holder 53 rotatably supporting the metal roller 52 has a pair of guide plates 54 extending vertically along the gripping transfer path.
54 are arranged in parallel, and the guide plate 54 guides the gripping transfer of the folded carton 10.

The print holder 39 has a slide metal 55
Are arranged rotatably and the slide metal 5
As shown in FIG. 9, a rotary shaft 56 is rotatably inserted between the two side plates 20 and 21 so as to be rotatable in parallel with the screw shaft 40. Slide metal 55 with respect to rotating shaft 56
Is configured to integrally rotate while allowing movement in the axial direction via a key 56 a provided on the rotation shaft 56. A sprocket 57 is disposed on the slide metal 55, and the sprocket 57 has the first shaft 4
5 and sprocket 5 arranged on the second shaft 49
An endless chain 60 wound around 8,59 is commonly wound. Then, a driving motor 61 to be described later
Is driven to rotate the rotating shaft 56 in a required direction, whereby the printing roller 46 is rotated. The print roller 46 is configured to rotate only in one direction.

That is, as shown in FIG. 3, a drive shaft 62 is rotatably mounted near the lower end between the side plates 20 and 21. The drive shaft 62 is disposed at the lower portion of the machine frame and is rotatable forward and backward. Drive motor 61 via a belt-pulley transmission system 63 including a toothed belt and a toothed pulley. The drive shaft 62 is connected to the rotating shaft 56 via a belt-pulley transmission system 64 including a toothed belt and a toothed pulley disposed on the side plate 21 and a clutch / plate unit 105. Therefore, the driving motor 6
1 and the clutch / plate unit 105
Is turned ON / OFF at the timing described later, the rotation shaft 56 of the printing apparatus E is rotated via the transmission systems 63 and 64 and the clutch / blade unit 105, and the printing roller 46 is intermittently rotated in one direction. . The driving motor 61 is commonly used as a driving means of the gripping / transporting device D, so that the peripheral speed of the print roller 46 and the gripping / transporting speed of the folded carton 10 are synchronized with each other. 10 is configured to be properly printed.

The side plate 2 on which the suction and removal device C is disposed
0, the folded carton 10 taken out to the receiving position by the unloading device C is gripped, and the carton 10
A gripping transfer device D is provided as a gripping transfer means for gripping and transferring the sheet to a lower delivery position. Gripping transfer device D
As shown in FIG. 5, an elevating body 66 slidably provided on a guide rail 65 arranged on the outer surface of the side plate 20 so as to extend in the up-down direction. Is connected to an appropriate position of an endless belt 68 wound around a pair of pulleys 67, 67 disposed apart from each other.
The lower pulley 67 is disposed so as to be integrally rotatable at the end of the drive shaft 62. Therefore, by driving the drive motor 61 in the forward and reverse directions, the elevating body 66 is moved via the endless belt 68 to the guide rail. It moves up and down along 65. In addition, as the pulleys 67, 67 and the endless belt 68,
Those with teeth are preferably used.

A chuck 70 is provided on the elevating body 66 via a bracket 69 extending inside the side plate 20.
The chuck 70 is used to hold the suction pad 3 of the suction take-out device C.
Carton 1 in a folded state held by suction at 0,30
0 is configured to grip a side portion adjacent to one opening side. The chuck 70 is set so as to be moved up and down between an upper receiving position and a lower receiving position by forward / reverse driving of the driving motor 61 (see FIG. 18). Then, the side of the folded carton 10 taken out by the suction take-out device C is gripped by the chuck 70, and after the suction holding by the suction take-out device C is released, the chuck 70 is moved to the delivery position, so that the folded state is obtained. The carton 10 is configured to be transferred to a position where the carton 10 can be transferred to a suction moving device F described later. The chuck 70 is set to move to a position where it does not interfere with the printing device E.

Further, a pulse count unit 102 is connected to the drive shaft 62, and a signal of the operation amount of the gripping transfer device D detected by the unit 102 is input to the control device. Then, by inputting data corresponding to the size of the carton 10 (left and right dimensions in a state where the carton 10 is raised and opened and formed as shown in FIG. 28 (a)) to the control device, the drive based on the data is performed. The lowering position of the chuck 70 is controlled by controlling the rotation of the motor 61. That is, the type change setting by changing the carton size in accordance with the order change can be automatically performed in a short time only by changing the data of the control device, and the operation rate can be improved. Here, the clutch device in the printing device E
The brake unit 105 turns on the clutch and turns off the brake at a timing corresponding to the carton size according to the detection signal from the pulse count unit 102, whereby the printing roller 46 rotates and the carton in the folded carton 10 is turned on. Printing is performed at the printing position corresponding to the size. Also, the printing piece 46a
However, at a timing where the carton 10 arrives at an appropriate position allowing passage between the metal roller 52 and the printing roller 46 of the folded carton 10, the clutch of the clutch / brake unit 105 is turned off, the brake is turned on, and printing is performed. The rotation of the roller 46 is set to be stopped.

As shown in FIG. 2, a suction transfer device F as suction transfer means for opening and forming the folded carton 10 gripped and transferred to the transfer position by the gripping transfer device D below the suction unloading device C, A carton transport device G for transporting the carton 10 having the opening formed therein is provided. In the suction moving device F, the carton 10 opened in a box shape is sent out to the carton conveying device G. In this case, the carton 10 in the folded state by the carton magazine B is sent out. Is set in a direction opposite to the direction of conveyance to the take-out position.

A pair of supports 71, 71 are arranged on the inner surface of the one side plate 21 so as to be spaced apart from each other in a horizontal suction moving direction that intersects with the gripping / transporting direction of the folded carton 10 by the gripping / transporting device D. A moving body 73 is screwed to a screw shaft 72 rotatably supported between the two supports 71, 71. The moving body 73 includes both supports 71, 7
1, a guide rail 74 disposed on the side plate 21 facing the
It is slidably disposed with the rotation restricted. As shown in FIG. 11, the screw shaft 72 is connected to a moving motor 75 as a driving means provided on the side plate 21 via a belt-pulley transmission system 76 including a toothed belt and a toothed pulley. By moving the movement motor 75 forward and backward, the moving body 73 is moved forward and backward along the guide rail 74 in the suction movement direction.

The moving body 73 is provided with a bracket 77 extending toward the center of the gripping / transporting of the carton 10 in the folded state by the gripping / transporting device D.
, A rotary actuator 78 is disposed on the rear side away from the carton transfer position. As shown in FIG. 11, one end of a lever 80 is provided on a rotating shaft 79 extending to the front side of a rotary actuator 78 so as to be integrally rotatable, and a rectangular suction chamber 81 is integrally rotatable at the other end of the lever 80. It is arranged in. On the front side of the suction chamber 81, a plurality (four in the example) of suction pads 82 connected to and connected to a vacuum suction source (not shown) via the chamber 81 are arranged at intervals vertically and horizontally. ,
The front plate 11 of the body part of the folded carton 10 gripped and transferred to the delivery position by the gripping transfer device D can be sucked and held. The suction chamber is set so as to change its direction by 90 ° by driving the rotary actuator 78 forward and reverse. Thus, the attitude of the carton 10 in the folded state is changed by 90 ° by driving the rotary actuator 78 in the forward direction while holding the carton 10 in the folded state at the delivery position by the suction pad 82 by suction. I have. In the embodiment, the carton 10 in the folded state in which the opening side faces sideways is converted into a posture in which the opening side faces up and down and the rear folding flap 13b of the rear plate 13 faces downward (FIG. 20, see FIG. 21).

Further, by moving the moving body 75 forward and backward by moving the moving motor 75 forward and backward, the suction pad 8 is moved.
2 is configured to move forward and backward between a carton delivery position, an opening position separated rearward from the delivery position, and a delivery position for delivering the formed carton 10 to the carton transport device G. The rotation speed of the screw shaft 72 is
A pulse count unit 104 (see FIG. 10) connected to the belt-pulley transmission system 76 detects the rotation amount, and the number of rotations is fed back to the control device to determine the rotation amount of the movement motor 75, and the suction pad 82 Is performed. That is, the amount of movement of the suction pad 82 from the delivery position to the opening position and the amount of movement from the opening position to the delivery position are controlled by controlling the rotation of the movement motor 75 by the control device.
The change is adjusted according to the size change of the carton 10 in the folded state. The speed at which the suction pad 82 moves forward from the opening position to the delivery position (second speed) is set to be higher than the speed at which the suction pad 82 moves backward from the delivery position to the opening position (first speed). . Also, the suction pad 82
It is set to gradually accelerate from the delivery position to the opening position, reach the first speed, and stop at the opening position.

As shown in FIG. 4, when the suction pad 82 of the suction moving device F is moved from the delivery position to the open position, the side plate 21 regulates the movement of the rear folding flap 13b of the folded carton 10. The regulating member 90 for making the auxiliary opening of the carton 10 by the
The height can be adjusted according to the carton size via 3. That is, as shown in FIG.
As shown in FIG. 3, a pair of supports 83, 8 are vertically separated from each other.
A moving body 85 is screwed to a screw shaft 84 that constitutes a height adjusting mechanism 103 rotatably supported between the two supports 83, 83. The moving body 85
Is slidably disposed on a guide rail 86 disposed on the side plate 21 facing between the supports 83, 83 with rotation restricted. The screw shaft 84 is connected to an adjustment motor 87 as a driving means provided on the side plate 21 by a chain.
It is connected via a sprocket transmission system 88, and drives the adjustment motor 87 forward and reverse to
Is adapted to move up and down along the guide rail 86.

The movable body 85 is provided with a regulating member 90 that horizontally traverses the gripping / transporting path of the folded carton 10 by the gripping / transporting device D. The regulating member 90 faces rearward from the carton transfer position (the side of the suction moving device facing the opening position) (see FIG. 23), and holds the folded carton 10 by the suction pad 82 of the suction moving device F in a suction state. When the direction is changed by 90 °, it is positioned so as to be able to come into contact with the front surface of the rear folding flap 13b projecting from the lower opening side. Thereby, when the suction pad 82 of the suction moving device F is moved from the delivery position to the opening position, the movement of the rear folding flap 13b of the folded carton 10 is restricted, and the auxiliary opening of the carton 10 is performed. The current position of the regulating member 90 is
Detected by a pulse count unit 89 connected to the sprocket transmission system 88, and the detected value is fed back to the control device, whereby the adjusting motor 8
7 is controlled in rotation to control the position of the regulating member 90. That is, when the height position of the rear folding flap 13b is changed when the size of the carton 10 in the folded state is changed, the control device controls the rotation of the adjusting motor 87 so that the regulating member 90 is moved to the rear folding flap 13b. Can be adjusted according to the height position.
The regulating member 90 is positioned so as to come into contact with the rear flap 13b during acceleration when the suction pad 82 moves backward from the delivery position to the opening position.

Below the position where the suction moving device F is disposed, plates 91 extending in a direction intersecting with the direction of the carton suction movement by the moving device F are disposed on the side plates 20 and 21, as shown in FIG. A pair of supports 92, 92 are disposed apart from each other in the longitudinal direction of the plate 91, and a moving body 94 is screwed onto a screw shaft 93 rotatably supported between the supports 92, 92. Have been. The moving body 94 is a plate 91 facing between the supports 92 and 92.
Is slidably disposed on a guide rail 95 disposed in a state where rotation is restricted. The screw shaft 93 is connected to a movement motor 96 as a driving means provided on the side plate 21 via a belt-pulley transmission system 97 including a toothed belt and a toothed pulley.
Is driven forward and backward, the moving body 94 moves horizontally along the guide rail 95.

A support bar 99 is vertically disposed on the moving body 94 so as to extend upward.
A pair of carton pushers 100, 100, which are parallel to the direction of the carton suction movement, are vertically separated from each other. The carton pusher 100 is positioned at the delivery position so as to abut on a continuous portion between the side plate 12 and the rear plate 13 in the folded carton 10 suction-held by the suction moving device F. Then, the carton pushers 100, 100 move the moving body 94 from the standby position, which is away from the delivery position, to the operating position, which is close to the carton pusher 100, by driving the moving motor 96 in the forward and reverse directions. The connecting portion between the rear plate 13 and the rear plate 13 is brought into contact with the side intersecting the suction movement direction and pressed toward the suction movement center to open the carton 10 (see FIG. 23). As shown in FIG. 25, the carton pushers 100, 100 facing the operating position, when sending out the carton 10, which has been formed into an opening in cooperation with the suction moving device F, toward the carton conveying device G, as shown in FIG. 12
It also has the function of abutting and guiding. The current position of the carton pusher 100 is determined by a pulse count unit 98 connected to the belt-pulley transmission system 97 as shown in FIG.
The detected value is fed back to the control device, whereby the rotation of the moving motor 96 is controlled, and the position of the carton pusher 100 is controlled. That is, when the carton size is changed in accordance with the order change, the control device controls the rotation of the movement motor 96, whereby the movement amount of the carton pushers 100, 100 from the standby position to the operation position is changed and adjusted,
The pushers 100, 100 are always in the side plate 1 of the carton 10.
It is designed to come in contact with 2 and guide.

The suction pad 8 in the suction moving device F
As shown in FIG. 1, a carton transport device G for horizontally transporting the opening-formed carton 10 in a direction intersecting with the suction movement direction is provided in front of the suction movement direction 2. The carton transport device G includes a plurality of gripping members 101 as a carton holding unit for gripping the carton 10, and is configured to intermittently move each gripping member 101 in the horizontal direction. Then, the carton 1 sent from the suction moving device F
0 is transported downstream while being gripped by the gripping member 101. Note that the gripping member 101 is configured so as to be able to grip the cartons 10 of various sizes by being adjusted according to the size change of the carton 10.

[0037]

Next, the operation of the opening / closing device for a folding carton according to the embodiment will be described in relation to the method of opening and unloading. The carton magazine B has a plurality of folded cartons 10 folded in a sheet shape.
Are arranged and placed on the endless belt 17 in a state where the opening side thereof is directed sideways (FIG. 2).
7). In addition, the carton 10 in the folded state at the most downstream side
A folded carton group is placed with its lower end abutting on the support rods 19, 19 and its upper end abutting on the regulating roller 29, with the upper end inclined forward in the transport direction.

In the standby state of the take-out opening device A, the suction take-out device C is in the receiving position where the suction pads 30, 30 are separated from the most downstream folded carton 10 which is aligned and collected in the carton magazine B. I'm coming. Further, the chuck 70 of the gripping transfer device D stands by at the lower transfer position, the suction pad 82 of the suction transfer device F stands by at the opening position, and the carton pushers 100, 100 face the standby position.

When the take-out opening device A is operated in this state, as shown in FIG. 16, the air cylinder 37 of the suction / take-out device C is urged to move the suction pads 30, 30 from the receiving position to the take-out position. The vicinity of the lower end of the folded carton 10 located on the most downstream side of the magazine B is held by suction. Next, the air cylinder 37 is reversely urged to move the suction pads 30, 30 from the take-out position to the receiving position, whereby the folded carton 10 is separated from the folded carton group as shown in FIG. It is removed to the receiving position. The folded carton 10
The movement of the vicinity of the upper end of the carton 10 is regulated by the regulating roller 25, and the movement of the lower end thereof is regulated by the support rods 19, 19, so that the parts to be adsorbed by the suction pads 30, 30 of the folded carton 10 are It is reliably separated from the subsequent folded cartons.

The drive motor 61 of the gripping / transporting device D is driven at an appropriate timing when the suction pads 30, 30 arrive at the receiving position, and the chuck 70 located at the transfer position is raised to the receiving position. The side part of the folded carton 10 which is sucked and held by the suction take-out device C is gripped. Carton 1 by chuck 70
When 0 is gripped, suction of the folded carton 10 by the suction pads 30, 30 is released, and the driving motor 61 is driven in reverse to lower the chuck 70 from the receiving position to the transferring position (see FIG. 18). . Note that the folded carton 10 gripped and transferred from the receiving position to the transfer position passes between the printing roller 46 and the metal roller 52 in the printing device E as shown in FIG. The date of manufacture is printed on the trunk (the front plate 11 in the embodiment) of the carton 10. Since the printing roller 46 is rotated by the driving motor 61 of the gripping transfer device D as described above, the folding carton 10
And the peripheral speed of the print roller 46 matches, so that accurate printing is performed. Further, since the folding carton 10 is sandwiched between the printing piece 46a of the printing roller 46 and the metal roller 52, printing is always performed in a stable state. The printing device E
Is configured to be horizontally movable and adjustable along the body of the folded carton 10 via the adjusting mechanism 44, so that the printing position in the left and right direction can be changed according to the change in the carton size due to the order change. Can be. Further, by changing the ON / OFF operation timing of the clutch / blade unit 105, the print position in the vertical direction can be changed according to the carton size.

As shown in FIG. 20, the folded carton 10 gripped and transferred to the delivery position by the gripping transfer device D has a front plate 11 on the front side of the suction pad 82 of the suction transfer device F waiting at the opening position. Are positioned in a state of facing each other. In addition, carton size due to order change
(Right and left dimensions in a state where the carton 10 is raised and formed into an opening as shown in FIG. 28A) is changed, so that the carton 1 in the folded state while being gripped by the chuck 70 is changed.
When the vertical length of 0 is changed, the rotation of the driving motor 61 is controlled by the change of the data setting in the control device, and the lowering position control of the chuck 70 is automatically performed. The plate 11 is positioned so as to always face the front surface of the suction pad 82.

The folded carton 1 is located at the delivery position.
When 0 arrives, the moving motor 75 of the suction moving device F is driven, the suction pad 82 waiting at the opening position is moved forward, and the body part of the folded carton 10 at the transfer position is suction-held. Next, after the grip by the chuck 70 is released, the rotary actuator 78 is driven to change the attitude of the carton 10 in the folded state by 90 ° as shown in FIGS. That is, the carton 10 in a folded state in which the opening side faces sideways.
Is converted into a posture in which the opening side faces up and down and the rear folding flap 13b of the rear plate 13 faces downward. At this time, as shown in FIG. 22, the regulating member 90 is located on the front side (opening position side) of the rear folding flap 13b of the carton 10 in the folded state in which the posture has been changed.

When the attitude change of the carton 10 in the folded state is completed, the moving motor 75 is reversely driven at the relatively low first speed to move the suction pad 82 backward from the transfer position to the opening position. At this time, the movement of the rear folding flap 13b is regulated by the regulating member 90, and the inside is prevented from being in a vacuum state when the front and rear plates 11, 12 and 13, 14 are separated, so that the inside can be reliably prevented. The auxiliary opening of the carton 10 is achieved. Also, as shown in FIGS. 23 and 24, the carton pushers 100, 10 waiting on the side of the delivery position
0 is driven, and the pusher 10 is moved.
0,100 is moved forward toward the operating position. As a result, the carton pushers 100, 100 come into contact with the continuous portion of the side plate 12 and the rear plate 13 in the carton 10 slightly opened from the folded state from the side intersecting the suction moving direction and toward the suction moving center direction. When pressed, the carton 10 is opened. In addition, the carton pusher 100, 100
Is stopped and held at an operation position where it comes into contact with the side plate 12 of the carton 10 formed with the opening.

The speed at which the suction pad 82 is moved from the delivery position to the opening position is set so as to gradually accelerate, reach the first speed and stop at the opening position.
Since the timing at which the rear folding flap 13b abuts on the regulating member 90 during the acceleration is set, more favorable auxiliary opening and opening formation are achieved. In addition, the speed at which the suction pad 82 moves from the opening position to the transfer position in order to suck and hold the folded carton 10 arriving at the transfer position is set to be substantially the same as the first speed. However, it is not limited to this.

Next, the suction pad 82 of the suction moving device F
Is retracted by an amount corresponding to the carton size and reaches the opening position, the moving motor 75 is reversely driven at a second speed higher than the retreating speed (first speed) of the suction pad 82, and the regulating member is 90 and carton pusher 100,
Carton 10 opened in a cylindrical shape by the cooperation of 100,
It is sent out at a high speed to the gripping member 101 of the carton conveying device G beyond the transfer position. At this time, as shown in FIGS. 25 and 26, the side plate 12 of the opened carton 10 is supported in contact with the carton pushers 100, 100, so that the opened state of the carton 10 is maintained.
When the cylindrical carton 10 is gripped by the gripping member 101 of the carton conveying device G, the suction holding of the carton 10 by the suction moving device F is released, and the suction pad 82 retreats to the opening position. When it is confirmed that the suction pad 82 has returned to the open position, the suction take-out device C takes out the next folded carton 10. The cylindrical carton 10 is horizontally conveyed downstream while being gripped by the gripping member 101.

When the carton size is changed due to the order change, the suction pad 82 of the suction moving device F, the regulating member 90 and the carton pusher 100 are adjusted in the same manner as in the adjustment of the lowering position of the chuck 70 in the gripping transfer device D described above. , 100 is automatically adjusted. Further, the guide members 18, 1 in the carton magazine B are used.
The position adjustment of 8 is also performed automatically. As a result, the operation time can be improved by shortening the time required for setting the type change corresponding to a plurality of types of carton.

In the carton take-out opening device according to the embodiment, the printing device and the gripping / transporting device are driven by the common drive means, but may be driven synchronously by separate drive means. Further, the printing device is not limited to the type of the embodiment, and various types such as a type using an ink ribbon and an ink jet type can be used. Further, the means for transferring the carton in the holding state in the gripping transfer device is not limited to the chuck as in the embodiment, and the carton is transferred while being sucked and held by a suction pad or the like, or the carton is transferred by a pair of belts. It is possible to adopt a method of nipping and transferring. Furthermore, in the embodiment, the folded cartons taken out of the carton magazine via the suction take-out device are transferred to the delivery position by the holding / transferring device. The folded carton may be allowed to fall naturally to reach the delivery position.

[0048]

As described above, according to the method and the apparatus for taking out and opening a folded carton according to the present invention, the accumulation of the cartons in the folded state in the carton magazine is performed so that the opening side where the folding flap is located faces sideways. Since the orientation is changed by 90 ° when taking out from the magazine and forming the opening, since the opening side is turned up and down, the opening side is turned into a cylindrical opening state and is sent to the carton transfer device. Even in the case of a folded carton in which a part of the folding flap is projected, the cartons can be aligned and collected in a stable posture in the carton magazine. In addition, when changing the product type according to the change of the carton size, each means is automatically adjusted only by setting the data corresponding to the product type. To improve.

Further, when the suction pad holding the folded carton by suction in the suction moving means is moved backward, the suction pad is gradually accelerated to a relatively low first speed, and a folding flap is inserted into the regulating member during the acceleration. The auxiliary opening and the opening of the carton in the folded state can be satisfactorily formed.

A printing means is provided on a path for gripping and transferring the folded carton taken out of the carton magazine,
Since the date of manufacture and the like are printed on the folded carton, printing can be performed more reliably than when printing is performed after a tubular opening is formed. In addition, the mechanism for adjusting the printing position with respect to the change in the carton size of the printing means only needs to be configured to move only in the direction intersecting the gripping / transporting direction of the folding carton. Therefore, the mechanism for adjusting the printing position corresponding to the carton size. Can be simplified. Further, by arranging the printing means in a space formed between the carton take-out position and the delivery position, there is an advantage that the entire apparatus can be downsized.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing the entire configuration of a take-out opening device for a folding carton according to an embodiment.

FIG. 2 is a schematic front view showing the entire configuration of a take-out opening device of a folding carton according to the embodiment.

FIG. 3 is a schematic front view showing a main part of a take-out opening device of a folding carton according to the embodiment.

FIG. 4 is a schematic side view showing a main part of a take-out opening device of a folding carton according to the embodiment.

FIG. 5 is a schematic side view showing a main part of a take-out opening device of a folding carton according to the embodiment.

FIG. 6 is a schematic side view of a main part showing an arrangement portion of the suction / extraction device according to the embodiment.

FIG. 7 is a schematic front view of a main part showing an arrangement portion of the suction and take-out device according to the embodiment.

FIG. 8 is a schematic side view showing a printing apparatus according to the embodiment.

FIG. 9 is a schematic plan view showing a printing apparatus according to the embodiment.

FIG. 10 is a schematic front view showing the suction moving device according to the embodiment.

FIG. 11 is a schematic side view showing the suction moving device according to the embodiment.

FIG. 12 is a schematic front view showing an arrangement portion of a regulating member according to the embodiment.

FIG. 13 is a schematic side view showing an arrangement portion of a regulating member according to the embodiment.

FIG. 14 is a schematic side view showing an arrangement portion of the carton pusher according to the embodiment.

FIG. 15 is a schematic rear view showing an arrangement portion of the carton pusher according to the embodiment.

FIG. 16 is an explanatory diagram showing a state in which a carton in a folded state is taken out by the suction take-out device.

FIG. 17 is an explanatory view showing a state in which the cartons in the folded state taken out by the suction take-out device are received by the gripping transfer device.

FIG. 18 is an explanatory view showing a state in which the cartons in the folded state are gripped and transferred from the take-out position to the delivery position by the gripping transfer device.

FIG. 19 is an explanatory diagram showing a state in which printing is performed by a printing device on a folded carton gripped and transferred by the gripping transfer device.

FIG. 20 is an explanatory view showing a state in which a folded carton is gripped and transferred by the gripping transfer device to the front side of the suction moving device.

FIG. 21 is an explanatory view showing a state in which the attitude of the folded carton held by suction by the suction moving device is changed by 90 °.

FIG. 22 is an explanatory diagram showing the relationship between the restricting member and the folded carton in which the posture has been changed by 90 ° by the suction moving device.

FIG. 23 is an explanatory diagram showing a relationship between a carton and a carton pusher in a folded state in which the posture has been changed by 90 ° by the suction moving device.

FIG. 24 is an explanatory view showing a state in which the carton is formed by the suction moving device and the carton pusher;

FIG. 25 is an explanatory diagram showing a state in which an opening-formed carton is sent out to a carton transport device.

FIG. 26 is an explanatory diagram showing a state in which an opening-formed carton is sent out to a carton conveying device.

FIG. 27 is an explanatory view showing the state of each step of the carton that is taken out and opened by the take-out opening device.

FIG. 28 is a schematic diagram showing an opened state and a folded state of a carton to be handled by the unloading opening device.

[Explanation of symbols]

 Reference Signs List 10 carton 13b rear flap 44 adjusting mechanism (adjusting means) 61 driving motor (driving means) 75 moving motor (driving means) 82 suction pad 87 adjusting motor (driving means) 90 regulating member 96 moving motor (driving means) ) 100 Carton pusher 101 Holding member (carton holding unit) 103 Height adjustment mechanism B Carton magazine C Suction removal device (Suction removal device) D Grip transfer device (Grip transfer device) E Printing device (Printing device) F Suction movement device ( Suction moving means) G Carton conveyor

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masahiro Kaizuki 4-380 Nakaodai, Nishi-ku, Nagoya-shi, Aichi Fujikikai Nagoya Plant (56) References JP-A-7-223614 (JP, A) Sho 56-48928 (JP, A) Actual opening Sho 51-60969 (JP, U) Japanese Patent Publication No. Sho 51-15471 (JP, B1) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65B 43 / 00-43/62 B31B 1/00-49/04

Claims (6)

(57) [Claims] 1. A method of taking out one carton (10) folded in a sheet shape one by one from a group of cartons arranged and collected and forming an opening in a cylindrical shape, wherein the carton (10) is The cartridges are aligned and collected in the carton magazine (B) with the opening side facing sideways, and the cartons (10) are sucked and received one by one from the carton group aligned and collected in the carton magazine (B). The carton (10) taken out to the receiving position is gripped on the sides of the carton (10) and transferred downward, and the body of the carton (10) gripped and transferred to the lower delivery position is sucked and held, and After the side grip is released, the carton (10) is turned 90 ° so that the opening side faces up and down, and the carton (10) with the body held by suction is gripped with respect to the delivery position. Suction moving direction crossing the transfer direction When moving backward, the folding flap (13b) projecting toward the opening side of the carton (10) is controlled to move and the auxiliary opening is performed, and the carton pusher (100) is moved from the direction intersecting the suction moving direction to the carton (100). The carton (10) is formed into a cylindrical shape by advancing toward (10) and pressing the carton (10) in an abutting state, and the opening state of the carton (10) opened in the cylindrical shape is described above. The carton (1) maintained by the carton pusher (100)
0) is moved forward in the suction movement direction to
(G) The opening method for taking out and opening a folded carton, wherein the cartons are sent out to the carton holding section (101). 2. The method according to claim 1, wherein, when the side of the carton (10) is gripped and transferred downwardly, printing is performed on the folded carton (10). 3. An apparatus for taking out one carton (10) folded in a sheet shape one by one from a group of cartons arranged and collected and forming an opening in a cylindrical shape, wherein the carton (10) is erected. A carton magazine (B) arranged and supplied in a folded state; and a suction take-out means (C) for sucking and taking out the cartons (10) one by one from the carton magazine (B) in a folded state.
And a suction pad (82) which can move forward and backward while holding one side of the removed carton (10) by suction.
After the required amount of the suction pad (82) holding the suction
By moving the suction pad (82) forward, the carton (10), which has been formed into a tubular opening, sends out the carton (10) to a predetermined position, and a carton (10) by the suction moving means (F). When the suction moving means (F) moves backward by sucking and holding the carton (10), the suction flap (13b) protruding toward the opening side of the carton (10) is provided. Touching carton (1
A regulating member (90) for assisting the opening of (0), is disposed so as to be able to move forward and backward in a direction intersecting with the suction moving direction of the suction moving means (F), and is synchronized with the backward movement of the suction moving means (F). Move forward towards the carton (10)
A carton pusher (10) that presses the slightly opened carton (10) from the side to form the carton (10) into a cylindrical opening.
0), and a reversible moving motor (75) for moving the suction moving means (F) forward and backward, wherein the moving motor (75) is such that the suction moving means (F) is a carton.
When (10) is sucked and held and moved backward, the rotation is controlled at a relatively low first speed, and when the carton (10) formed into a tubular opening is advanced and sent out to a predetermined position, Is the first
It is set to be driven in reverse so that transmission is performed at a speed higher than the speed of the first speed control. Further, in the first speed control,
The speed is controlled so as to gradually accelerate and stop after reaching the constant speed, and the timing at which the folding flap (13b) projecting toward the opening side of the carton (10) comes into contact with the regulating member (90) is the first timing. A take-out opening device for a folding carton, characterized in that it is set to be during an acceleration rising period of the speed control of (1). 4. An apparatus for taking out one carton (10) folded in a sheet shape one by one from a group of cartons arranged and collected and forming an opening in a cylindrical shape, wherein the carton (10) is Carton magazine (B) which is aligned and stacked with the opening side facing sideways
Suction and take-out means (C) for sucking and taking out the carton (10) one by one from the carton magazine (B) in a folded state
And the carton (10) taken out by the suction taking out means (C)
Gripping transfer means (D) for receiving and gripping, and gripping and transferring this carton (10) downward by a movement amount according to the carton size.
The carton (10) can be turned 90 ° while holding one side of the carton (10) gripped and transferred to the delivery position by the gripping transfer means (D), and the gripping transfer means
(D) is provided with a suction pad (82) that is movable forward and backward in a suction movement direction intersecting with the carton gripping transfer direction, and the carton (10) is turned 90 ° and the suction pad (82) is changed according to the carton size. After moving back by the moving amount, the carton (10) after the opening is formed into a cylindrical shape is advanced by the moving amount according to the carton size, and the carton (1) is moved to the carton conveying device (G).
0), and the suction moving means (F) is disposed on the suction moving path of the carton (10) by the suction moving means (F) via a height adjusting mechanism (103) so as to be vertically movable and adjustable. When the moving means (F) moves backward by sucking and holding the carton (10), it comes into contact with the folding flap (13b) projecting toward the opening side of the carton (10) to assist in opening the carton (10). Regulating member (90), which is disposed so as to be able to move forward and backward in a direction intersecting with the suction moving direction of the suction moving means (F), and is tuned to the backward movement of the suction moving means (F) according to the carton size. Carton by quantity (10)
Carton being folded by moving forward towards
(10) pressing the carton (10) from the side to form the carton (10) into a tubular opening; a carton pusher (100); and the gripping / transporting means (D), the suction moving means (F) and the carton pusher (100). Driving means (61, 7
5, 96), and a drive means (87) for driving a height adjustment mechanism (103) of the regulating member (90). 5. A printing means arranged on a carton gripping transfer path by the gripping transfer means (D) and printing on a folded carton (10) gripped and transferred by the gripping transfer means (D).
5. The opening device according to claim 4, further comprising (E). 6. The printing means (E) is arranged so as to be movable in a horizontal direction intersecting with the carton gripping transfer path, and is capable of automatically adjusting a printing position according to a carton size by adjusting means (44). 6. The opening device for a folding carton according to claim 5, wherein