JPH0482733A - Apparatus for taking out and erecting carton - Google Patents

Abstract

PURPOSE:To stably erect a carton and to achieve the stable delivery of the carton to a conveyor by positioning a carton blank on a vacuum plate and striking the same by an erecting guide during feed to erect the carton blank in a perfect state. CONSTITUTION:A vacuum plate 14 is moved to the upper part of a rotary drum 12 while rotated so as to be matched with the feed-out timing of a carton blank and this carton blank is delivered to the vacuum plate 14 and a stopper 14a is provided on the front side of the rotary direction and the leading end of the carton blank strikes against the stopper 14a to be positioned. The carton blank is fed while sucked and held to the vacuum plate 14 over the almost half periphery thereof and an erecting guide 16 is rotated by the rotary drum 12 and shaken by a groove cam 66 and struck from the rear thereof to be erected in a square cylindrical form to be delivered to the carton fingers 18a, 18b of a carton conveyor 18 from the vacuum plate 14.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention provides a method for removing carton blanks from a carton magazine.
This relates to a device that takes out sheets one by one and folds them into a box (forming them into a rectangular tube shape).

[Conventional technology]

Carton blanks folded into sheets are sucked and taken out one by one by a suction cup attached to a rotating drum, and while the carton blanks are held and conveyed by rotation, the unsuctioned side of the carton blank is removed by a swinging arm. A carton take-out molding device that uses tapping to form a carton is already known (Japanese Patent Laid-Open No. 61-232130).

In this device, a carton is delivered to a conveyor in a diamond-shaped semi-formed state, and is formed into a complete rectangular cylinder by being held from the front and back by the box holding and conveying attachment of the conveyor.

[Problem to be solved by the invention]

In the above-mentioned conventional apparatus, since the box is preformed to a diamond shape while being held by the suction cup, the boxing and delivery to the conveyor were unstable.

The present invention has been made to eliminate the above-mentioned drawbacks, and provides a carton take-out and stacking device that is capable of stably stacking and delivering cartons to a conveyor.

(Means for Solving the Problems) A carton take-out/folding device according to the present invention includes a take-out means for suctioning carton blanks folded flat and stored in a carton magazine and taking them out one by one; a feeding means for feeding out the carton blank taken out by the feeding means; a conveying means attached to a rotating body for receiving and rotationally conveying the carton blank fed out by the feeding means; a stopper for positioning the carton blank sent out by the means; and a boxing means attached to the rotary body, which hits and raises the carton blank held by the conveying means from the rear side as the rotary body rotates. It is equipped with

(Function) In the carton take-out/folding device according to the present invention, the carton blank held by the conveying means, positioned by the stopper, and being rotated and conveyed is struck from the rear side by the folding means to be folded into a perfect rectangular cylindrical shape. After that, it is handed over to the carton container.

(Example) The present invention will be described below with reference to illustrated examples. FIG. 1 is a front view of a carton take-out/folding device according to an embodiment of the present invention. This device is a carton magazine (2
) A take-out mechanism (4) that takes out carton blanks one by one from this carton magazine (2), and a kicker (
6) Rotating rollers (8) and (10) that sandwich and rotate the carton blank from above and below and send it forward, are equally spaced around the outer circumference of a rotary drum (12) placed below the rotating roller (lO) on the front side. and rotating rollers (8
), a vacuum plate (14) that sucks and holds the carton blank sent out by (10) and transports it.
, is equipped with a raising guide (16) that hits and raises the carton blank, which is sucked and held by the vacuum plate (14) and is being rotated, from the rear, and the above-mentioned mechanisms raise the carton blank into a rectangular tube shape. The boxes are then delivered to carton fingers (18a) and (18b) of a carton conveyor (18) disposed below.

Rotating roller (8) located on the bottom side of the carton blank
is rotatably supported by one swinging end of a roller support lever (22) that is swingable about the shaft (20). A rod of an air cylinder (24) is connected to the other end of the roller support lever (22).
A cam follower (26) is installed between the fulcrum shaft (20) and the fulcrum shaft (24).
is installed. And this air cylinder (2
4) acts as a tension spring, the cam follower (
26) is in contact with the plate cam (28), and the plate cam (28)
As a result of the rotation, the lower rotary roller (8) swings up and down in FIG.

Another short lever (30) is fixed to the fulcrum shaft (20), and two long and short rods (32) and (34) facing in opposite directions are connected to this short lever (30). There is. The tip of the short rod (32) on the upper side is the fulcrum (
The fulcrum (
36) Connected at a closer position. This bending lever (
A suction cup (40) is held at the swinging end of the cartridge 38) at an inclination that is approximately the same as the inclination of the carton magazine (2).

The end of the long rod (34) on the lower side is connected to a short lever (44) that can swing around the shaft (42),
Further, a long lever (46) is fixed to the fulcrum shaft (42) and swings in the same direction as the short lever (44). A kicker (6) that reciprocates along the lower ejection surface of the carton magazine (2) is attached to the swinging end of this long lever (46).
) is connected to the rod (50).

The shape of the plate cam (28) is a circular arc with a large diameter around half the circumference.
The remaining half circumference forms an arc with a small diameter, and the cam follower (
26) is in contact with the large diameter portion of the plate cam (2B), the cam follower (26) side of the roller support lever (22) is pushed upward, and the lower rotating roller (8) at the other end is lowered. . In addition, a short lever (30) fixed to the same fulcrum shaft (20) as the roller support lever (22) also swings toward the left in the drawing, and via the short rod (32),
The bending lever (38) holding the suction cup (40) swings upward to raise the suction cup (40). On the other hand, due to the swinging of the short lever (30), the long rod (34) also moves to the left in the figure, and the short lever (44) and long lever (46) fixed to the fulcrum shaft (42) also swing. Move the kitsuka (6) back (toward the right side of the drawing).

Conversely, when the cam follower (26) is in contact with the small diameter part of the plate cam (28), the cam follower (26) goes down, the lower rotating roller (8) goes up, the suction cup (40) goes down, and the kicker (δ ) moves forward.

Below the upper rotating roller (10) is a horizontal drum shaft (
A rotary tram (12) that rotates around a rotary tram (50) is arranged. On the outer periphery of this rotary drum (12),
Four vacuum plates 1- (14) are installed at 90 degree intervals. A stopper (14a) is fixed to the front end of each vacuum plate (14) in the rotation direction at right angles to the surface of the plate (14). As shown in FIGS. 2 and 3, the vacuum plate (14) is formed with a plurality of suction holes (14b) that open on the outer surface side, and these suction holes (14b) are connected to the rotary and drum (12). ) is connected to two internal passages (12a). A mechanical pulp (56) with which the rotating rotary tram (12) comes into sliding contact is fixedly arranged on the side surface of the rotary tram (12). An arc-shaped vacuum groove (56a) slightly shorter than half the circumference is formed on the surface of the mechanical valve (56), and an air hole is located at a position slightly away from the end of this vacuum groove (56a) (lower side in Figure 3). (56b) is provided. The vacuum groove (56a) is connected to a vacuum source via a passage (not shown), and the air hole (56b) is connected to an air source via an internal hole (56c).

Furthermore, the rotary drum (12) has four raising guides (16) corresponding to each vacuum plate (14).
is provided. As shown in FIGS. 4 and 5, each raising guide (1B) is an arm (62) that swings about a shaft (60) provided slightly on the inner periphery of the stopper (14a) as a fulcrum. This arm (62
), and a cam follower (64) attached to the back side of the intersection of the arm (62) and the raising guide (16) engages with the grooved cam (66), thereby raising the rotary tram (12). ) It rotates and sways as it rotates.

Below the rotary drum (12), a pair of carton fingers (18a) is used to hold the rectangular cylindrical carton.
, (1ab), and a carton conveyor (18) is disposed that conveys the cartons while maintaining the erected state.

Note that an upper presser guide is provided above the carton conveyor (18) to prevent the raised cartons from floating up due to the repulsive force.

FIG. 6 is a diagram showing the driving relationship of the above-mentioned parts, and the drum shaft (50) supporting the rotary drum (12) is rotationally driven by the rotation of the motor (72) being transmitted through the belt (70). Ru. The drum shaft (50) is rotated by a gear (74)
is transmitted to the gear (78) of the intermediate shaft (76), and further transmitted to the plate camshaft (82) through the belt (80). On the one hand, the plate cam shaft (82) is rotated by the shaft (86) of the upper rotating roller (10) via the belt (84).
and, on the other hand, via the gear (88),
It is transmitted to a gear (90) rotatably fitted to the fulcrum shaft (20) of the roller support lever (22). This gear (9
o) is provided with a pulley (92) in one direction, and a gear (92)
o) is rotated by the lower roller (8) via the belt (94).
is transmitted to the shaft (96) of.

The operation of the carton unloading and packaging device having the above configuration will be explained. First, the cam follower (26) attached to the roller support lever (22) is pushed up by the large diameter part of the plate cam (28), lowering the rotating roller (8) side of the roller support lever (22), and Removal mechanism (4)
The suction cup (4o) rises and attracts the carton blank in the carton magazine (2). At this time, the kicker (6) is retreating.

When the cam follower (26) moves to its small diameter portion due to the rotation of the plate cam (28), the suction cup (40) descends to take out the carton blank. At the same time, the lower rotating roller (8) rises and comes into contact with the lower surface of the carton blank, and the kicker (6) moves forward to the left in FIG. 1 along the opening surface of the carton magazine (2). The carton blank is a kick (
6) from the rear, and is sent forward by the counterclockwise rotation of the lower rotating roller (8). An upper rotating roller (10) is arranged on the front side, and the carton blank is rotated by the clockwise rotation of this rotating roller (10) and the counterclockwise rotation of the lower rotating roller (8). is sent further forward.

The vacuum plate (14) is moved to the rotary drum (12) in accordance with the timing when the carton blank is sent out.
and the carton blank is transferred to this vacuum plate (14).

A stopper (14a) is provided on the front side of the vacuum plate (14) in the rotational direction, and the tip of the carton blank hits this stopper (14a) and is positioned. Also, when the vacuum plate (14) moves to the upper part of the rotary tram (12), the suction hole (14b
) The internal passageway (12) of the rotary drum (12) leading to
One of the valves a) communicates with the vacuum groove (56a) of the mechanical valve (56) and starts suction.

As the rotary drum (12) rotates, the carton blank overlaps the surface of the vacuum plate (14) and the two internal passages (12a) or vacuum grooves (56)
a) to completely adsorb the carton blank.

Thereafter, the carton blank is sucked and held by the vacuum plate (14) over approximately half its circumference and is erected by the erecting guide (16) while being conveyed. The raising guide (16) is rotated by the rotary tram (12) and swung by the grooved cam (66), and strikes the carton blank from behind to raise it into a rectangular tube shape. Raising the box is almost completed up to the positions indicated by two-dot chain lines (14a) and (16a) in Figure 1, and then the vacuum plate (14
) The internal passageway (12a) passing through the suction hole (14b) of the mechanical valve (56) is sequentially removed from the vacuum groove (56a) of the mechanical valve (56), and then connected to the air hole (56b). As a result, the rectangular cylindrical carton has a no.\cum plate (14
) to the carton conveyor (18) to the carton conveyor (
18a) and (18b), and sent to the next process.

Carton blank or vacuum freight (1
4) While being adsorbed by the guide (16)
The carton is packed into a perfect rectangular tube and transferred to the carton conveyor (18).
This allows for stable unloading and delivery. The air cylinder (24) is activated to hold the suction cup (40) in a lowered state when the carton blank is not removed from the carton magazine (2).

FIG. 7 is a diagram showing the carton magazine take-out section of the second embodiment. In this embodiment, there are no two rotating rollers, and only a kicker (106) is used to feed out the taken-out carton blank. That is, the extraction mechanism (10
4) The suction cup (140) includes a lever (122) that swings around the fulcrum shaft (120) and a short lever (130) fixed to the same fulcrum shaft (120), as in the above embodiment.
It is held via a bending lever (138) etc. connected to this lever (130), and the swinging lever (1
A cam follower (126) attached to the plate cam (22) engages with a plate cam (128) to move up and down to take out the carton blank.

On the other hand, the kicker (10B) includes a swing lever (121) supported by the fulcrum shaft (120), a rod (123), and a lever (127) that swings about another shaft (125) as a fulcrum.
, a cam follower (133) connected to this lever (127) through a long lever (129) and a rod (131) that swing together in one direction, and that is attached to the swing lever (12i) is attached to another cam (not shown). (omitted)) and swings the lever (121) to reciprocate. In this embodiment, the kicker (106) can have a long stroke, and the carton blank can be delivered to the vacuum plate using only the kicker (106).

In addition, in this embodiment, the air cylinder (124), which operates when a carton blank is not taken out from the cart magazine (102), is not connected to the swing lever (122), and the cam follower (126) is a single bow long spring. (137)
It is in elastic contact with the plate cam (128).

〔Effect of the invention〕

As described above, according to the present invention, while the carton blank is positioned on the vacuum plate and transported, the carton blank is struck by the raising guide and raised into a perfect state, and is then handed over to the carton conveyor. , stable packaging and delivery can be performed.

[Brief explanation of the drawing]

Fig. 1 is a front view of a carton take-out device according to an embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view of a rotary drum, Fig. 3 is a cross-sectional view of the rotary drum, and Figs. 4 and 5. 6 is a sectional view showing the raising guide, FIG. 6 is a view showing the driving relationship, and FIG. 7 is a plan view showing the take-out portion of the second embodiment. 2)...Carton magazine 4)...Ejecting means 6)...Kicker (feeding means) 8), (10)...Rotating roller (feeding means) 12
)... Rotating body (rotary tram) 14)... Conveying means (vacuum plate) 14a)... Stopper 15)... Raising means (raising guide) Patent applicant
Shibuya Kogyo Co., Ltd.

Claims (1)

[Claims] a take-out means for sucking carton blanks folded flat and stored in a carton magazine and taking them out one by one;
a feeding means for sending out the carton blank taken out by the taking out means; a conveying means attached to a rotating body for receiving and rotationally conveying the carton blank sent out by the feeding means; provided on the front side of the conveying means; a stopper for positioning the carton blank fed out by the feeding means; and a stopper attached to the rotary body that hits the carton blank held in the conveyance means from the rear side as the rotary body rotates to raise the carton blank. 1. A carton takeout/unboxing device, characterized by comprising a box means.