JPH0219233A - Barrel printing mechanism of carton assembling apparatus - Google Patents

Abstract

PURPOSE:To perform the printing of a barrel part during a carton assembling feed process by providing the printing roller, which is opposed to the lower end part of a folding means and has types provided to the peripheral surface thereof in a protruding state, under a feed passage in a state rotatable and drivable in a feed direction at the same speed as the feed speed of a carton. CONSTITUTION:A carton A folded in a flat state is taken out one at a time by the driving of a rotary transport mechanism and rotationally transferred downwardly along a hypotrochoid locus to inwardly push in a folding edge A1 to open the carton. The carton A opened in a square shape is advanced only on the under surface side thereof while the upper end of the front surface thereof is held by the vertical surface 5b of an upper stopper 5 to be reversely folded and, after the corner part A3 of the lower part of the carton on the front surface side thereof is pressed by a collapsing roller 6b, said carton is fed between the lower end surface of a conveyor 6a and the upper surface of a feed passage 4 to be reversely folded by about 180 deg.. When the carton A is advanced into the gap 7b' between a stamping roller 7a and a receiving roller in connection with the feed thereof, the carton is grasped by the rotational driving of both rollers to be further compressed and body stamping is performed at the most compressed time. Therefore, barrel printing can be performed during a carton assembling feed process.

Description

[Detailed Description of the Invention] <Industry> - Field of Application The present invention is designed to collect flatly folded cartons from a magazine.
The present invention relates to a carton assembly v&neck which is conveyed to a cartoning machine by a conveyance mechanism with a rectangular opening on a sheet removal conveyance path, and specifically relates to a printing mechanism 11 which stamps or stamps a serial number, lllllll date, etc. on the body of the carton.

<Prior art> Conventionally, this type of carton assembly apparatus has, for example, a time-opening [61-
As disclosed in Japanese Patent Application No. 60420, most carton printing mechanisms are not installed during the carton assembly and transportation process. Stamps were stamped using a stamping machine installed separately from the stirrup before being supplied to the magazine.

<Problems to be Solved by the Invention> However, with this conventional cylinder printing method, if a carton with cylinder printing remains in the magazine depending on the number of pieces produced that day, it may be necessary to use it the next day. There is a problem that the cartons are not wasted, and a stamping machine is required separately from the 10,000-ton assembly equipment, which requires space. There is also the problem that the work has to be done in multiple parts, making the work time-consuming.

In view of such conventional circumstances, the present invention aims to perform cylinder printing during the carton assembly and conveyance process.

Means for Solving the Problems> The technical means taken by the present invention to solve the above problems is to provide a structure at the top of the conveyance path whose height from the road surface gradually decreases as it goes forward in the conveyance direction. A folding means is provided,
Below the conveyance path, the one end of the first folded stage and the first half of the first folded stage face each other with a gap slightly narrower than the vertical thickness dimension when folded flat, and letters are provided protruding from the peripheral surface. A printing roller is provided to be rotatably driven in the transport direction at the same speed as the carton transport speed, and a re-opening means for compressing the folded carton in the forward direction is provided in front of both in the transport direction. It is something.

Kusaku Kawa> According to the above-mentioned technical means of the present invention, when a carton with a rectangular opening is conveyed to the packaging machine side by a conveying mechanism, the carton is gradually compressed and folded in the vertical direction by the folding means, and then, The carton enters the gap between the printing roller and the carton, and the carton is sandwiched between the two, and the printed characters are pressed against the appropriate position of the marking section to stamp or stamp the carton, and then the carton is opened again into a rectangular opening by means of re-opening means. be.

<Example> Hereinafter, one embodiment of the present invention will be described based on the drawings.

In this embodiment, as shown in Fig. 1, if a magazine (1) is arranged in an inclined manner and is folded flat, a ton (△)...
・A plurality of, for example, three, planetary tooth Φ rows are meshed with the fixed gear, and a suction cup (2
a) (2a) The rotational speed an mechanism (2) configured by connecting (2a) attracts and takes out one carton, and the removed carton (Δ) is transferred to the mechanism (2) with an internal rotation trochoid locus. There is a type C that rotates and transfers to a fixed inclined guide (3) disposed below and releases the suction of the suction cup (2a) at an appropriate timing.

The fixed inclined guide (3) is erected at the rear end of the conveyance direction of the conveyance path (4) along the lower end apex of the movement locus of the suction cup (2a), that is, the internal rotation trochoid locus, and is located on the front side of the fixed inclined guide (3). The inclined surface (3a) is formed so as to gradually approach the movement locus of one folded edge (A1) of the folded carton <A) as it goes downward, and the downward movement of the suction cup 7 (2a) The folded edge (A1) is brought into sliding contact with the inclined surface (3a) and gradually pushed into the carton (A>inward).

Further, a vertical surface (3b) is provided below the inclined surface (3a), and the -h of the carton (A) is opened at the vertical surface (3b) and the horizontal conveyance path (4). Folding side corner (A
A lower stopper (3') is configured to lock 1) so that it cannot move rearward and downward in the conveying direction.

In this embodiment, the fixed inclined guides (3) are arranged in parallel in the right width direction of the conveyance path (4), and the inclination angle of each inclined surface (3a) is approximately 25 degrees.

The conveyance path (4) runs from the fixed inclined guide (3) to the box packing 1 (
(not shown) side, the lower surface of the carton (A) is placed along its two sides, and the transport mechanism transports only the lower surface side of this carton (A) forward in the transport direction. (4a).

The conveyance mechanism (4a) is composed of a belt conveyor having protrusions (4a+) projecting outward at equal intervals, and at least the rear part of the conveyor (4a) in the conveyance direction is horizontal, and in this embodiment, the left and right sides are fixed. A pair of inclined guides (3) are located inside the left and right direction of (3).

Above the conveyance path (4), there is an upper stopper located at a position corresponding to the height dimension of the carton (A) opened by 1 m, and located in front of the front width dimension of the carton (A) from the vertical surface (3b). (5) is provided.

The upper stopper (5) has a holding claw (5a) that is retractably disposed on the movement trajectory of the other folding edge (A2) of the folded carton (A), and a front upper end of the opened carton (A). The holding claws (5a) are usually made of an elastic body such as a spring (5C) and protrude on the above-mentioned movement trajectory, but the downward movement of the suction cup (2a) When it comes into contact with the other folding edge (A2), it swings and allows it to pass downward, and after passing, it protrudes again to prevent the other folding edge (A2) from moving upward.

Therefore, this upper stopper (5) and the lower stopper (
3”) and both folded side corners (A+) of the carton (A).
1 (A2) diagonally, and this means holds the carton (Δ) in a rectangular shape by utilizing the reaction force that tends to return the carton (Δ) in the folding direction.

In addition, the other folded edge (A2) of the opened carton (A)
The holding claw (5a) that prevents the upward movement is disposed so as to be able to appear and retract freely on the movement trajectory of the other folding edge (A2), but the holding claw is not limited to this, but can be formed by utilizing the elastic deformation of the carton (A). (5a) can hold the other folding edge (A2) in a fixed state without swinging, and when the holding claw (5a) is fixed, it is connected integrally with the vertical surface (5b). It also becomes possible.

In this embodiment, a pair of upper stoppers (5) are provided inside each of the left and right belt conveyors of the transport mechanism (4a).

Further, at the lower end position of the upper stopper (5), a folding rock cutting means (
6), and the folding means (6) is arranged so that its rear side in the conveyance direction is inclined so that its height from the upper surface of the conveyance path (4) gradually decreases as it goes forward in the conveyance direction, and
By making the distance between the lower surface of the front side and the conveyor (4a) slightly wider than the vertical thickness dimension of the carton (A) when folded, the open carton (A) is conveyed by the conveyor (4a). It is gradually compressed in the vertical direction to fold it flat, and then conveyed in one direction in the folded state.

In the case of this embodiment, the folding means (6) has its rear lower surface inclined downwardly toward the front, its front upper surface parallel to the upper surface of the conveyance path (4), and protrusions (6a+) arranged at equal intervals. A pair of left and right upper stoppers (5) (5) and (5)9 are provided on the outer sides of the left and right upper stoppers (5) (5), respectively, and these left and right folding conveyors (6a) (6a) and the conveyor path (4). By sandwiching the carton (A) in the vertical direction between the
(A2) is tilted so that it approaches the magazine (
1) The paper is reversely folded nearly 180 degrees in the opposite direction to the folding direction in which it was folded to remove the folding tendency.

Furthermore, in this embodiment, in addition to the folding conveyor (6a), a crushing roller (6b) is provided to protrude below the rear end of the conveyor (6a), and the crushing roller (6b) opens the opened carton ( The lower front corner (A3) of A) is pressed into a flat shape and then conveyed by the folding conveyor (6a) to ensure smooth reverse folding, but only by the folding conveyor (6a). If reverse folding is possible, this crushing roller (6b) is not necessary.

The folding means (6) has a downwardly inclined portion (6) at the rear thereof.
A cylinder printing mechanism (7) is arranged in front of a2) in the conveyance direction,
The Ill printing mechanism (7) includes a printing roller (7a) rotatably disposed in the conveyance direction in correspondence with the lower end surface of the front part of the folding means (6) below the conveyance path (4); Road (4)
A receiver disposed above the printing roller (1a) is disposed below the member (1b) and the conveyance path (4), and is pressed against the printing roller (1a) via a transfer roller (IC). It consists of ink 0-ra (7d).

The printing roller (1a) has a long groove (7a+) formed on its circumferential surface, and a predetermined number of printed characters (7a2).
... are inserted and arranged in a removable manner so as to slightly protrude from the circumferential surface,
These printed characters (7az)... are arranged so that their tip surfaces are inserted into the conveyance path (4) through six window holes (4b) and are aligned with the upper surface of the path (4), and Its drive shaft (7
a3) is rotated at the same speed as the transport speed of the carton (Δ) by linking it with the drive sources of the transport conveyor (4a), the folding conveyor (6a), and the re-opening conveyor (9a) described later.

In this embodiment, a case is shown in which the printing roller (1a) is a stamping roller and stamps the surface (8 degrees) of the body of the carton (A).

The receiver member (7b) is at least the above-mentioned marking roller (γa)
The surface facing the carton (A) is made of a hard material such as a metal cage and is formed in a smooth shape, and the smooth surface is arranged with a gap (7b') slightly narrower than the vertical thickness dimension when the carton (A) is folded flat. In this embodiment, the center of rotation is the marking roller (1a
) The receiver, which is located directly above the center and is rotatable in the transport direction, is composed of a roller.

The transfer [l-ra (7C) has a conventionally well-known structure in which the peripheral surface is formed of an elastic material such as rubber, and the above-mentioned stamping roller (
7a) Type letters (7a2)... are arranged so as to be able to rotate freely so as to be in pressure contact with the tip surface.

The ink roller (7d) has a conventionally well-known structure, such as storing ink inside and oozing out an appropriate amount onto the surface, or having a part of it constantly immersed in an ink pot and depositing ink on the surface. The support member (7d+), which is installed in parallel with the transfer roller (7C) and pivotally supports the ink roller (7d) in this embodiment, is centered at its lower end.
C), and an elastic body such as a spring (7d2) T: The surface of the ink roller (7d) is brought into contact with the surface of the transfer roller (7C), and the
3) makes it possible to adjust the pressure contact force.

In addition, in this embodiment, the drive shaft (
γa3) and the receiver is the rotating shaft of the roller (1b) <7b+)
By linking the rotating shaft (7C+) of the transfer roller (7C) with a linking member such as a gear, these three rollers (7a), (7b), and (7c) are driven to rotate at the same speed It''. If it is possible to stamp the carton (Δ) only by rotating the stamping roller (7a), use the receiving roller (7a).
1b) and the transfer roller (7C)G are not necessarily rotated.

Although the receiver member (γb) is composed of a roller, it is not limited to this, but may be composed of a flat plate parallel to the upper surface of the conveyance path (4) as long as the carton (A) can be smoothly compressed and conveyed. Furthermore, the transfer roller (7C) was interposed between the marking roller (7a) and the ink roller (7d), but even without the transfer roller (7C) intervening, ink could be applied to the tip surface of the type (7a2)... If the ink roller (1d) can be transferred evenly and uniformly, it is not a problem to press the ink roller (1d) directly against the marking roller (7a).

In history, a detector (1e) for detecting the presence or absence of a stamp on the body surface (A') of the carton (A>) is disposed in front of the upper ad stamping roller (7a) in the conveying direction. vessel (IC
), if the stamp is not detected, it is determined that the stamp is defective and filling of the contents into the carton (A> is stopped and the carton is discharged as empty, or post-processing such as increasing the FIJ degree of the stamp) is carried out. do it like this.

On the other hand, folding means (
A flap folding mechanism (8) is disposed along the upper and lower flaps (8) of the carton (8).
A4) (A4) (As) (A5> These upper and lower flaps are inserted between each other (A4) (A4) (As)
A pair of left and right guide bodies (8a) (8a) for expanding (As> in the vertical direction, and these guide bodies (8a) (8a)
The upper and lower flaps (A4) expanded by 1ift (A4
) (A5 HAs) by 90 degrees, a pair of left and right folding roots (8b) for the upper and lower flaps (8b), and the front and rear flaps (
A pair of left and right front flap expansion plates (8c) (8c) that expand As ) (A6 ) (A7) (87) in the front and back direction.
) are sequentially arranged forward in the transport direction.

Each guide body (8a) is horizontally installed substantially parallel to the left and right side edges of the conveyance path (4), and its rear end in the conveyance direction is connected to the folding means (6).
) It is arranged at a height position corresponding to approximately the bottom center of the carton (A) at the front-to-back intermediate position of the downwardly sloped surface of the rear end, and is inclined in the F direction and downward as it goes forward in the conveyance direction from the rear end. In the 1st king sorting, the surfaces (8a+) (8a+) are formed into a gradually expanding shape, and this sorting forms the surfaces (8a+ H8a+)
) Continuously connects the front end of the upper and lower belt-shaped surfaces (8az) (8az
) are formed approximately parallel or gradually convergent, and these upper and lower sorting surfaces (-3 surface (8a+) (8a+) and upper and lower strip-shaped surfaces (8a+)
There are front and rear flaps (86) (8az) between a2) (8az).
A space (8a3) into which A7) is fitted is formed continuously over the rear end in the conveyance direction.

Each folding plate for the upper and lower flaps (8b) has a horizontal gap (8b+) that is continuous with the space for inserting the front and rear flaps (8a3).
The rear side of these flaps are inclined upwardly and downwardly as they move forward in the conveyance direction, and are located on the inner side in the left-right direction of the conveyance path (4), that is, the upper and lower flaps (As). A fold-up surface (8112) and a fold-down surface (8b3>) are formed that gradually approach the base end of (A7).

Each front flap expansion plate (8C) is located on the left-right outer side of the front end of the upper and lower flap folding plate (8b), and in the case of this embodiment, is made of a transparent plate so as to be approximately parallel to the left and right side edges of the conveyance path (4). An apex angle (8c, ) is provided on the rear side of the carton (A) corresponding to the center of the carton (A) below the road surface, and the apex angle (8C+
) and a guide surface (8C2) that slopes upward as it goes forward in the conveyance direction, and a guide surface (8C2) that slopes downward.
3) are each formed into a gradually expanding shape, and the guide surface (8C3) is used for inserting the rear flap (A7) into the descending surface (9a2) of the re-opening conveyor (9a) of the re-opening means (9), which will be described later. through the passageway (8C3').

The re-opening means (9) is disposed forward in the conveying direction of the conveyor belt (4a) so as to be continuous with the front end of the folding means (6), and extends the protrusions (9a+) outwardly at regular intervals. A belt conveyor protruding from the belt conveyor, and a descending surface (9a2) formed by curving downward at the front end of the re-opening conveyor (9a) in the conveyance direction.
), and a horizontal discharge conveyor (9b) with a pair of front and rear conveyor claws (9bl) (9b+) erected in large numbers corresponding to the front and rear width dimensions of the carton (△), and the above-mentioned descending surface. An inclined plate (9C) for guiding the front edge (A3) of the carton (A), which is arranged in a downwardly inclined manner opposite to (9a2)
It consists of.

In this embodiment, a pair of re-opening conveyors (9a) are arranged on the left and right, and the rear half in the conveying direction of each is located between the left and right upper and lower flap folding plates (8b) (8b), so that the upper surface is horizontal. The ends of the discharge conveyor (9b) are arranged over the lower ends of the left and right descending surfaces (9a2) (9a2), and each re-opening conveyor (9a) is connected to the transport conveyor (4a),
By interlocking with , the rear edge (88) of the carton (A>) folded flat by the projection (9a+) is pushed forward and dropped along the descending surface (9a, , ) while the carton is folded flat. The front conveyor claw (9) of the discharge conveyor (9b) moves the front edge (A3) along the inclined plate (9C) and horizontally
b+) and compresses the carton (A) in the front direction to open it, and as the transport claw (9b+) moves forward, the carton (A) gradually rises from the rear of the re-opened carton (A>). The carton (A
) to create a rectangular opening for transport.

Further, at the front end of the inclined plate (9C) in the conveying direction, there is a horizontal surface for preventing the carton (A) from floating up, which faces the upper surface of the discharge conveyor (9b) with an interval slightly longer than the vertical height dimension of the carton (A). (9C+) are installed in succession.

Next, the operation of such a carton assembly device will be explained.

First, the magazine (1) is driven by the one-rotation transport mechanism (2).
A flatly folded carton (A>) is picked up and taken out one by one, and this carton (A) is rotated and transferred downward on an internal rotation trochoid trajectory.

By the time the carton (A> approaches the lower end apex of the above trajectory, one folded edge (A+) of the carton (A) is in pressure contact with the inclined surface (3a) of the fixed inclined guide (3), and the carton (A) With the downward movement of , the one-folded green (A+) is gradually pushed into the carton (△) to open the carton (A>).

One folded edge (Δl) of the carton (A) that gradually opens
) descends along the vertical plane (3b), and by the time the lower surface of the carton (A) approaches the upper surface of the conveyance path (4), the other folding edge (
A2) holds the retaining claw (5a) of the upper stopper (5) at the edge (
A2) is swung out of the movement trajectory or is elastically deformed and passes through this, forming a rectangular shape.

The square-opening carton (A) has two opposing folding side corners (A+) (A2) that have a lower stopper (3°) consisting of a vertical surface (3b) and the upper surface of the conveyance path (4), and a holding claw (5a). By being immovably sandwiched between the upper stopper (5) consisting of a lower surface and a vertical surface (5b), the carton (A) is held in a rectangular shape using the reaction force that tries to return to the folding direction. When the suction of the suction cup (2a) is released.

Thereafter, while the upper front end of the carton (A) is held incapable of advancing by the vertical surface (5b) of the upper stopper (5), only the lower surface of the carton (A) is moved forward by the drive of the conveyor (4a). Above both folding side corners (A+) (A2)
The folding means (
6) The crushing roller (6b) forming the carton (A)
Either the upper corner (A3) on the sprouting surface side is pressed into a flat shape and then conveyed by the folding conveyor (6a), or the lower end surface of the conveyor (6a) and the conveyance path (4) are directly conveyed by the folding conveyor (6a) alone. ) is transported between the top surface and reversely folded approximately 180 degrees.

In conjunction with this, the τ carton (Δ) is formed between the marking roller (1a) and the receiver (7b).
), the two rotating parts M sandwich the carn (A) and compress it in the 1ζ direction,
As shown in Figure 3, these two 1]-ra (7a) (γb)
When the carton (A> reaches the approximate center position of Press it into the appropriate position and stamp 114 (j).

Then, the presence or absence of this IH stamp is detected by a detector (IC).

In addition, at the same time as the above reverse folding, the vertical sorting of each guide body (8a) is performed so that the surfaces (8a+) (8a+) move the front flap (A6) slightly toward the inside of the carton (A), that is, toward the rear, as shown in FIG. Press and bend the upper and lower flaps (A4) (A5) and insert them between the tips of the upper and lower flaps (A4) (A5).
) are gradually expanded in the vertical direction as shown in Fig. 5, and the front and rear flaps (86) (A7) open the space (883).
fit inside.

As shown in Fig. 6, the upper and lower flaps (A4 HAs) are inserted into the folding surfaces (8b2) and folding edges (8b3) of each folding plate (8b) for the upper and lower flaps via the upper and lower band-shaped surfaces (8a2) (8az). guided to the re-opening conveyor (9a
) are folded in substantially at right angles, and the front and rear flaps (80) (A7) extend from the space (8a3) into the horizontal gap (813+).

Thereafter, the front flap (A6) is pushed up by the apex angle (8c, ) of each front flap expansion plate (8C) as shown in FIG. By moving forward along (8C2), it is gradually pushed upward and comes into pressure contact with the inner surface of the expansion plate (8C),
By the time the rear flap (A7) approaches the apex angle (8c, Then, the rear flap (A7) moves diagonally downward from the apex angle (8C+) through a passage (8C3'') formed between the descending surface (9a2) and the guide surface (8C3).

Then, the bottom surface of carn 1 (△) is the discharge conveyor (9b).
) By the time it approaches the top surface, as shown in Figure 8, it is sandwiched between the front and rear conveyor claws (9b+) (9b+) of the discharge conveyor (9b), and the rectangular frontage of the carton (A>) is completed, and it is packed in the box as it is. (f in the figure).

Therefore, in this example, the cylinder printing mechanism (
7), no special space is required for cylinder marking, and the entire device does not become large.

Incidentally, in the curved water embodiment, the case where the printing roller (7a) stamps the body surface (8') of the stamped row arm carton (A) is shown, but the present invention is not limited to this, and the E11 character roller ( 1a
) may be stamped on the surface (A') of part 1a1 with a stamping row, or a so-called hot printer may be used in which the printing roller (1a) is heated and printed via the printing die 1.

In addition, although the folding means (6) is constituted by a protrusion (6a+>(~j bell)/conveyor, it is not limited to this, and the carton (A) can be compressed in the vertical direction and folded flatly. If possible, for example, a guide plate that slopes downward in the forward direction of conveyance may be used, and a flat plate-shaped receiver may be used as a member (
1b) can also be installed in series.

In this case, the belt conveyor constituting the conveyance mechanism (4a) is extended to the re-opening conveyor <9a> of the re-opening means (9>), and these are integrated into one (1).
A) is transported.

<Effect of the invention> Since the present invention has the above configuration, it has the following advantages.

■ When a carton with a square width is transported to the packaging machine side by the transport mechanism, the carton is gradually compressed vertically by the folding means and folded, and then the carton enters the gap between it and the printing roller. , the carton is sandwiched between these two, and the type is engraved or stamped on the appropriate position of the 1st and 4th part of the carton, and then the page 1m is inserted into the carton using the opening means. - Since the cylinder is opened again in a square shape, cylinder printing can be performed during the carton assembly and transportation process.

Therefore, compared to the conventional method of replenishing the magazine with cartons that have been printed in advance using a stamping machine, cartons are wasted depending on the number of products produced per day. There is no need for it, and it can be made more compact.

■ If the folding method is used to fold the carton in the opposite direction to the folding direction in the magazine, it is possible to remove the creases of the carton at the same time as cylinder printing, and to create a finished product with a square opening that is stable and of excellent quality. You can get the carton.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of a carton assembly device showing an embodiment of the present invention, Fig. 2 is a plan view of the same, and Fig. 3 is a vertical cross-sectional side view showing a state in which the cylinder is printed on a carton. Figure 4 is an enlarged side view of the main part showing a state where the upper and lower sorting surfaces have entered between the upper and lower flaps of the carton.
Figure 5 is an enlarged side view of the main part showing the state in which the upper and lower flaps are expanded; FIG. 7 is an enlarged side view of the main part showing a state in which the front flap is pushed up by the front flap expansion plate, and FIG. 8 is an enlarged side view of the main part showing a state where the carton is about to reopen.

Claims (1)

[Claims] In a carton assembly device that removes flatly folded cartons one by one from a magazine, leaves a rectangular opening on a conveyance path, and conveys it to a boxing machine by a conveyance mechanism, a height dimension from the surface of the road is above the conveyance path. A folding means that is gradually lowered as it goes forward in the direction is provided, and is opposed to the lower end of the folding means below the conveyance path with a gap slightly narrower than the vertical thickness dimension when the carton is folded flat. , a printing roller with letters projected on its circumferential surface is rotatably driven in the transport direction at the same speed as the carton transport speed, and in front of both of these rollers in the transport direction is a re-opening means for compressing the folded carton in the front-rear direction. A cylinder printing mechanism of a carton assembly device, characterized in that: