JPH06587B2 - A device that feeds package blanks to the packing device - Google Patents

Description

The present invention relates to a device for delivering package blanks, in particular assembled and flat folded carton blanks, to a packing machine.

When making a package from cardboard, it is common to make a package blank outside the packing device and supply it to the packing device as a plank stack. When making high capacity carton packages, for example from corrugated cardboard, the carton blanks are pre-folded outside the packing machine. Thus, the prepared carton blanks are folded flat and provided to the packing machine, where they are assembled and filled with goods. Furthermore, the folding flaps (bottom and top wall) are folded.

Although folded flat, the carton blank is of considerable size. The high speed packing machine has a problem in supplying a carton blank to the packing machine.

An object of the present invention is to provide a device for efficiently supplying a package blank, especially a carton blank, to a packing device without requiring manpower.

The device according to the invention for this purpose is characterized in that a stack of package blanks is fed into the packing device and tilted to bring the blanks into a vertical or nearly vertical position.

In the present invention, a unit of package blanks, or blank stack, is sent to a packing machine. During transportation and as the blank stack is received by the packing machine, the carton blanks are stacked horizontally. The blank stacks are sequentially tilted to process the carton blanks in the packing machine. Thus, the individual blanks are held in a vertical or slightly tilted position.

The device of the present invention is also a device for feeding a package blank to a packing device, in which a blank stack of carton blanks is followed by a base (pallet) of a receiving part of the packing device.
In order to tilt each blank stack, it is sent to the packing device or the blank magazine of the packing device by the tilting device.

The pallet as a base for carrying one or more blank stacks is designed, on the one hand, to be carried and handled by a normal forklift, and on the other hand the blank stacks are separated by gripping their underside. Designed to be lifted from pallets and transported.

In the present invention, the receiving portion for receiving the blank stack is
Located on the longitudinal center plane of the packing machine, the blank stack is thus adapted to be fed to the packing machine or blank magazine without lateral movement. However, the receiving parts may be arranged laterally offset so that the blank is moved laterally with respect to the packing device or the blank magazine before or after the tilting movement.

Ascending movement is made with tilting movement of the blank stack,
After tilting, the blank stack is in a higher position than in the receiving part. Further, a feature of the present invention relates to the structure of the pallet, the receiving portion, the tilting device, and the blank magazine of the packing device.

Example A device is shown for feeding a carton blank 10 to a packing device 11 for making large volume carton packages. The carton blank 10 is especially made of corrugated cardboard, pre-punched, folded and connected to the carton wall so that the carton blank 10 can be assembled, filled and finally sealed in the packing device 11. . Assembly device 12 for carton blank 10 and packing device 11
The configuration of the above is disclosed in West German Patent Publication No. 3429761 (Japanese Patent Laid-Open No. Sho 6-26).
1-69441) is preferable.

The flat folded carton blanks 10 are subsequently fed to form the blank stacks 13, 14 into the packaging device 11. On top of that, two blank stacks 13,1
Specially designed pallet 15 on which 4 can be placed in contact
(Fig. 1) and 16 (Fig. 6) are used. These pallets are composed of upper and lower frames 17, 18, preferably a board 19 and a beam 20.
The fork 21 of the forklift 22 is inserted into the lower frame 18 of the pallets 15 and 16. The blank stacks 13 and 14 are mounted on the upper frame 17. The upper frame 17 is adapted to be lifted and inserted with an arm of a carrier so that one or both of the blank stacks 13 and 14 can be lifted from the pallets 15 and 16.

This pallet 15 and 16 has two blank stacks 1
3 and 14 are placed and sent to the packing device 11 by the forklift 22. Pallet 15,
16 is a receiving part 23 (Fig. 1), 24 (Fig. 6)
Be lowered to. Then, the blank stack 13,14
Are separately packed by the packing device 11 or the blank magazines 25, 26.
Sent to.

In the first preferred embodiment shown in FIGS. 1-5, the pallet 15 is fed laterally into the longitudinal center plane of the machine. In this case, the pallet 15 is not placed on the base and the fork 21 of the forklift 22 uses the blank stack 1
It is held in the correct position to receive 3 and 14 directly. This position is chosen such that the carrier or fork-shaped three pawls 28, 29, 30 are correctly inserted into the upper frame 17 of the pallet 15 from the opposite side of the forklift 22.

The transport pawls 28, 29, 30 form part of a fixed lift conveyor 31 in the area of the receiving part 23. Transport claw 28
While the pallets 15 are placed on the receiving portion 23,
Located just below the blank stacks 13 and 14,
By lowering the fork 21 of the forklift 22, the pallet 15 is lowered and the blank stacks 13, 1
I am supposed to receive 4. As a result, pallet 15
Separate from the blank stacks 13, 14 and the blank stacks 13, 14 ride on the transport pawls 28-30 (fourth
Figure). The pallet 15 which has become empty is pulled out under the blank stacks 13 and 14 by the forklift 22,
Taken away.

The carrying claws 28, 29, 30 are provided so as to project from the beam 32 of the lift conveyor 31 to the 1 side in a cantilever manner (FIG. 4). The beam 32 is provided along the side of the receiving portion 23. Further, the beam 32 is provided on (two) bolts 34 so as to be vertically movable via a sleeve 33. Then, the beam 32 is a claw 28-
Together with 30, it can be moved up and down by a suitable driving means such as a cylinder (not shown).

FIG. 4 shows a state in which the carrying claws 28 to 30 are raised. After pulling out the pallet 15, the carrying pawl 28-
30 is lowered and the blank stacks 13, 14 are placed on a conveyor, in this example a roller conveyor 35.
Then, the claws 28 to 30 are lowered below the upper surface of the roller conveyor 35 (indicated by a chain line in FIG. 1).

The blank stacks 13 and 14 are sequentially sent to the tilting unit 36 by the roller conveyor 35. For this purpose, the roller conveyor 35 is divided into two independent roller conveyors 37 and 38. The conveyors 37, 38 are here adapted to be driven independently by respective chains 39, 39. The conveyors 37 and 38 are composed of a plurality of rollers 40 and 41. Both ends of these rollers are pivotally attached to the vertical flanges 42 and 43 of the device frame 44. The flanges 42 and 43 are the base plate 45.
Are connected to each other by.

The blank stack 13 initially leaves the tilting section 36 and rides on a short first conveyor 37. The blank stack 14 faces the tilting part 36 and is mounted on a second conveyor 38 which reaches the tilting part 36.

The blank stack 14 is sent from the receiving portion 23 to the tilting portion 36 by driving the conveyor 38 (shown by a chain line in FIG. 1). From this position, blank stack 1
4 is tilted, lifted, and transferred to the blank magazine 25. Thus, the carton blanks 10, which were initially stacked horizontally, are oriented substantially vertically. In this example,
It has been rotated about 100 degrees. As a result, the carton blank 10 is tilted downward on the blank magazine 25 toward the assembly device 12 or the packing device 11.

Due to the tilting, the blank stack 13 is moved to the tilt conveyor 4
Sent to 6. The conveyor 46 is composed of legs 47, 48 which are initially oriented horizontally and a vertical support leg 50. The vertical leg 50 has the blank stack 1 after tilting.
Support 3.

In order to receive the blank stack 13, the tilt conveyor 46 has two legs 47, 48 which are initially oriented horizontally.
Are provided separately. These extend below the surface of the conveyor roller 41. For this reason, the tilting part 36
The conveyor roller 41 in the area of (4) has a recess 49 into which the legs 47 and 48 are inserted (FIG. 5).

A support wall 50, which is the vertical leg of the tilt conveyor 46, extends vertically. Side walls 51 and 52 are connected to both sides of the support wall 50. Thus, the blank stack 13 is surrounded by the U-shaped part formed by the support wall 50 and the side walls 51, 52.

The legs 47, 48 extend beyond the support wall 50. Located on the extension surface of the legs 47, 48, behind the support wall 50,
Bearing ends 53 and 54 are rotatably connected to the bearing portion 55. As shown in FIG. 3, the bearing ends 53, 5
4, pins 56 and 57 are provided so as to project. These pins are supported by bearings 58 and 59 provided on the device frame 44 or the flanges 42 and 43. Tilt bearing 55
Are, of course, located above the support surfaces of the blank stacks 13,14.

To tilt the tilt conveyor 46, a gear segment 60 is provided at the bearing end 54 in this example. Then, a pinion 61 driven by a motor (not shown)
It meshes with and is rotated.

When the pinion 61 is driven counterclockwise (Fig. 1),
The tilt conveyor 46 including the legs 47, 48, the support wall 50, and the side walls 51, 52 is moved from the low position shown in FIG. 1 to the high tilt position shown by the chain line. In this state, the support wall 50 is located on the lower support surface of the blank magazine 25. The support wall 50 serves as a downward surface connected to the blank magazine 25.

The blank magazine 25 is composed of two magazine belts 62 and 63 which are separated from each other. The belts 62, 63 are driven by a common shaft 64 in order to feed the carton blank 10 continuously or intermittently to a delivery end 65. Here, the front carton blank 10 is held by the holding hooks 66 from the side. The dimensions of this holding hook are as follows:
It is chosen so that it can be pulled out of the 5 and sent to the packaging device 11 without changing the position of the holding hooks 66. For this purpose, the assembling device 12 shown in the aforementioned German patent publication 34297761.8 is preferably used.

The tilt conveyor 46 allows the blank magazine 2 to be fed until the carton blanks 10 on the support wall 50 are fed to the fixed part (magazine belts 62, 63) area of the blank magazine 25.
It is kept in the up-tilt position connected to 5.

In order to advance the carton blank 10 on the support wall 50,
A conveyor is provided. In this example, two conveyors 67 and 68 are provided separately. Strand 6
9 extends in the plane of the support wall 50 and projects slightly beyond the support wall. The belt conveyor 6 is provided at the upper and lower ends of the support wall 50.
First and second deflection rollers 7 for 7,68
0 and 71 are provided (FIG. 1). Further, the third deflection roller 72 is provided concentrically with the tilt bearing portion 55, and the belt conveyors 67 and 68 are guided around the tilt bearing portion 55. As a result, the belt conveyors 67, 68 are moved causing problems with the tilt conveyor 46.

A drive motor 73 is provided on the tilt conveyor 46 (FIG. 5) to drive the belt conveyors 67 and 68 via a fourth deflection pulley 74.

The belt conveyors 67 and 68 are mechanically connected.
For this reason, the deflection rollers 72, 72 are connected by a hollow shaft 75 and are provided concentrically with the tilt bearing portion 55. The hollow shaft 75 is rotatably attached to the tilt shaft 76 between the two bearing ends 53 and 54.

The belt conveyors 67 and 68 are arranged so that the upper deflection roller 70 is concentric with the deflection rollers 77 of the magazine belts 62 and 63 at the upper tilt position of the tilt conveyor 46. The deflection roller 77 is provided between the deflection rollers 70.

Above the tilt conveyor 46, the blank stack 13,
A holder for holding 14 is provided. In this example, two swing holding claws 78, 79 are provided on each of the two side walls 51, 52. These holding claws
It is connected to a lock shaft 80 rotatably mounted on a sleeve-shaped holder 81 mounted on the outside of the side walls 51, 52. The holding claw 79 is provided with a downward extension portion 82. A drive unit (not shown), for example, a cylinder acts on this extension portion to rotate the holding claw 79. Holding claw 7
The movement of 9 is transmitted to the other holding claw 78 via the lock shaft 80. The holding claw can be swung to a position away from the holding position, as shown in FIG. 2, for example. The blank stacks 13, 14 are thus free in the area of the blank magazine 25, both upwards and laterally.

The blank stacks 13 and 14 are supplied to the packing device or the blank magazine 25 as follows. When the front blank stack 14 is received by the tilt conveyor 46, the tilt conveyor 46 is tilted clockwise by driving the pinion 61, and the support wall 50 is connected to the blank magazine 25. The tilting movement is performed when the remaining stacks 83 on the blank magazine 25 are reduced and the next blank stack 13 can be loaded. That is, the remaining number of carton blanks 10 is about 2
When the number of sheets is reduced to zero, the tilt conveyor 46 is returned to the initial low position. On the other hand, the rest of the blank stack 14 remains on the blank magazine 25 as it is.

After the tilt conveyor 46 returns to the initial position, the independent conveyors 37 and 38 are driven. In this way, the second blank stack 13 is sent to the area of the tilt conveyor 46. Second
The stack 13 has a blank magazine 2 in the same manner as described above.
Moved to 5. Then, the receiving unit 23 is supplied with the next group of blank stacks 13 and 14.

When the tilted blank stacks 13 and 14 are in contact with the remaining stacks 83, the holding claws 78 and 79 are returned as described above, and the remaining stacks 83 and the blank stacks 13 and 14 are in direct contact with each other.

In the second embodiment shown in FIGS. 6 and 7, the pallet 1
6 is conveyed to the receiving portion 24 by the forklift 22 in the conveying direction of the blank stacks 13 and 14. The pallet 16 is specially designed. The fork 21 of the forklift 22 is inserted into the lower frame 85. The upper frame 86 is the blank stack 1
Supports 3,14. Then, the fork of the forklift 22 on the opposite side is inserted.

In this example, two blank stacks 13 and 14 are placed on the pallet 16 and are lowered onto the floor of the receiving portion 24. The blank stack 14 with the tilt conveyor 87 on the front side
Accept, tilt and lift to a higher position. Thus, the carton blank 10 is set almost vertically.
In this example, the tilt conveyor 87 and the blank magazine 26
And are arranged on offset surfaces. The tilt conveyor 87 is tilted within a region adjacent to the blank magazine 26 in the width direction (see FIG. 7).

The tilt conveyor 87 has horizontal claws 88 and 89.
These are provided below the vertical support wall 90 so as to be movable in the longitudinal direction. That is, it can move within the body 91 connected to the support wall 90.

To lift the blank stacks 13 and 14, click the claws 88,
Insert 89 under the blank stacks 13, 14 and lift. By tilting the tilt conveyor 89, the claw 8
7,88 pallets 16 with blank stacks 13,14
Lift from.

After the pallet 16 has been lowered onto the receiving part 24, the initially received blank stack 14 is placed at a position slightly separated from the tilt conveyor 87 (indicated by a dashed line in FIG. 6). The pawls 88, 89 are extended and the tilt conveyor 87 is tilted slightly before the pawls 88, 89 are pulled back with the blank stack 14 to support the blank stack 14 on the support wall 90. In this way, the claws 88 and 89 are moved from the position indicated by the alternate long and short dash line in FIG. 6 to the position indicated by the solid line.

A rack is formed on the upper surface for moving the claws 88 and 89 forward and backward. Drive gears 92, 93 mesh with the rack. These gears are attached to a common drive shaft 94 driven by a motor 95, which is provided on the tilt conveyor 89 or the body 91.

The tilt conveyor 87 includes a top wall 9 connected to a support wall 90.
6 and side walls 97, 98 are provided, the blank stack 1
The lateral movement of 3, 14 is restricted.

A link lever 99 is provided on the rear side of the support wall 90 so as to be offset from the center. A rotary shaft 100 is provided laterally at the end of the link lever 99.

The rotating shaft 100 is pivotally mounted on a bearing 102 provided on a main support 101 of the device. The free end of the rotating shaft 100 is connected to a motor (not shown). The tilting motion is transmitted to the tilting conveyor 87 via the rotary shaft 100.

After the blank stack 14 is received by the tilt conveyor 87 (FIG. 6), the tilting movement is started, and the tilting conveyor is rotated about 100 degrees to the state shown by the one-dot chain line in FIG. In this state, the carton blank 1 of the tilt conveyor
The surface of the support wall 90 that supports 0 is the blank magazine 2
It is coincident with the surface of No. 6 but is offset laterally (Fig. 7). The blank stack 14 is then pushed laterally from the tilt conveyor 87 or support wall 90,
It is transferred to the blank magazine 26. This movement is made by a cross slide 103 having a drive arm 104 located on the side wall 97 of the tilt conveyor. An arcuate surface 105 is formed on the lower surface of the drive arm 104 so that the tilting conveyor 87 can be tilted without trouble at the initial position of the cross slide 103 (shown by the alternate long and short dash line in FIG. 7).

The cross slide 103 is a rod 106 guided in a guide 108 provided under the blank magazine 26,
It is attached to 107. At the free ends of the rods 106 and 107 protruding from the guide 108, the rack 10
9 is formed. The rack 109 meshes with a pinion 110 driven by a motor (not shown).

Thus, the cross slide 103 is moved in the arrow direction from the initial position shown by the alternate long and short dash line in FIG. 7 together with the blank stack 14. This allows the blank stack 1
4 is transferred from the tilt conveyor 87 to the blank magazine 26. The drive arm 104 in the initial position serves to limit lateral movement of the blank stack 14 during tilting. Due to the arcuate surface 105, the drive arm 10 in the initial position
The side wall 97 underneath 4 can move freely.

A slit 111 is further formed in the drive arm 104, and the (tilted) upper wall 96 is formed in the drive arm 104.
It is designed to pass through this slit during lateral movement of the.

The blank magazine 26 is also specially designed. Two drive magazine belts 113, 11 are mounted on the cross slide 112 which is tilted slightly downward toward the packing apparatus 11.
4 are provided. On top of these lies a slightly tilted carton blank 10. In the area facing the packing device 11, the rest of the stack 115, which in this example has a relatively large size, is mounted. The blank stacks 13 and 14 are placed at an appropriate time thereafter. This blank magazine 26, that is, the cross slide 112, is the main support 10
1 is attached. Magazine belt 113,114
Is in a groove formed in the plate-like cross slide 112. The deflection rollers 116 and 117 on the rear side of the magazine belts 113 and 114 are moved up and down by a cylinder (not shown). In the lowered state (solid line in FIG. 7), the magazine belts 113 and 114 are below the surface of the cross slide 112. In this state, the blank stacks 13 and 14 have the magazine belts 113 and 1
It is transferred onto the cross slide 112 without being disturbed by 14. After that, the deflection rollers 116 and 117
Is lifted, and the magazine belts 113 and 114 are ready to convey the carton blank 10 by slightly lifting it. The carton blanks 10 are sent to the front of the blank magazine 26 depending on the use by the magazine belts 113 and 114.

The operation sequence of the apparatus is almost the same as that in the above embodiment. The only difference is that the blank stacks 13, 14 are
Is pushed onto the blank magazine 26 and then the tilt conveyor 87 is returned to its initial position and ready to receive the next blank stack.

[Brief description of drawings]

1 is a sectional view of a first preferred embodiment of the apparatus, FIG. 2 is a partially enlarged view of FIG. 1, FIG. 3 is a plan view of the apparatus shown in FIG. 1, and FIG. FIG. 5 is an enlarged rear view of the device shown in FIG. 1, FIG. 5 is an enlarged front view of the tilting device of the device shown in FIG. 1, FIG. 6 is a sectional view of the second embodiment, and FIG. It is a front enlarged view which notched one part of the apparatus shown in the figure. 10 ... Carton blank, 11 ... Packing device, 13, 14
... Blank stack, 15,16 ... Pallet, 25,2
6 ... Blank magazine, 46, 87 ... Tilt conveyor, 5
0,90 ... Support wall.

 ─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-60-217925 (JP, A) JP-A-61-69441 (JP, A) JP-A-59-172334 (JP, A) JP-A-63- 12533 (JP, A) JP-B 51-1911 (JP, B2) JP-B 51-19905 (JP, B2) JP-B 53-44748 (JP, B2) US Patent No. 2896946 (US, A) US Patent No. 2596386 (US, A)

Claims (12)

[Claims] 1. A tilting conveyor (46) adjoins in its tilting position the rear of a fixed blank magazine (25), the supporting wall (50) of the tilting conveyor (46) being of the blank stack (13, 14). The lower part of the blank magazine (25) so that the carton blank (10) is fed from the support wall (50) of the tilt conveyor (46) to the delivery end (65) of the blank magazine (25) upright or at a slight tilt. A packaging blank, in particular a pre-assembled carton blank, characterized in that it comes into contact with a support surface, a packaging machine, in particular a carton blank (1
The blank stack (13, 14) of (0) is packed in the packing machine (1
1) a mechanism for supplying the storage stations (23, 24) one after another, and a support leg (47, 4) which is oriented substantially horizontally in the initial position and supports the blank stacks (13, 14).
8) and supporting means composed of supporting claws (88, 89),
Each blank stack (1 consisting of a vertical support wall (50, 90) against which the blank stack (13, 14) leans.
And a tilting conveyor (46, 87) for rotating the tilting conveyor (46, 87).
A packaging machine (11) in which the carton blanks (10) of the blank stacks (13, 14) are supported vertically or slightly inclined on the support walls (50, 90) as they rotate about 100). ) Equipment for feeding to. 2. Device according to claim 1, characterized in that the tilting conveyor (46) adjoins in its tilting position the rear stationary part of the blank magazine (25). 3. A support wall (50) for a tilt conveyor (46).
But in its tilted position, the blank magazine (25)
Toward the delivery end (65) of the carton blank (1
0) feeding means, in particular characterized in that they both comprise one conveyor strand (69) with two conveyor belts (67, 68) extending in the region of the support wall (50). The device according to claim 1 or 2 having. 4. A tilt conveyor (46) for performing a tilting movement, the tilting conveyor (46) performing a tilting movement, in particular a tilting movement over a tilting angle of about 100 degrees in a tilted position, resulting in a tilting conveyor. The support wall (50) of (58) corresponds to the blank stack (1 of the blank magazine (25, 26).
3, 14) so that they are located on the same plane as the accommodating surface of the tilting bearing (55) at a distance above the supporting member, and in the intended position, the tilting bearing is almost horizontal. A device according to any one of claims 1-3, characterized in that it is mounted so as to be rotatable so as to face. 5. An extension portion of both end portions (53, 54) of the bearing,
Characterized in that it is arranged on an upright support wall (50) of the tilt conveyor (46), whereby the tilt conveyor (46) is rotatably mounted on a fixed tilt bearing (55). The device according to any one of claims 1-4. 6. A device for supplying blank stacks (13, 14) of carton blanks (10) stacked on top of each other to a receiving part (23, 24) of a packing machine (11). An apparatus according to any one of claims 1-5, comprising: 7. A plurality of units, in particular two units, of blank stacks (13, 14) can be set in the receiving parts (23, 24), which in the tilting plane are
7. An apparatus according to claim 6, characterized in that it is fed one by one to the tilt conveyor (46, 87) one after another. 8. A tilting conveyor (46, 87) is provided with side walls (5).
1, 52; 97, 98). A device as claimed in any one of claims 1 to 7, characterized in that 9. Swing-holding pawls (78, 79) for supporting the blank stacks (13, 14) have side walls (51, 5).
The upper part of 2), in particular, both of them have two swing holding claws (78,
Device according to claim 8, characterized in that 79) is pivotally mounted on both sides on a common pivot axis (80). 10. In the area of the receiving part (23), a conveyor, in particular two independently drivable separate bodies for continuously feeding a blank stack (13, 14) to a tilting conveyor (46). Device according to any one of claims 1-9, characterized in that the conveyor (37, 38) of claim 1 is arranged for feeding a blank stack (13, 14). 11. A blank stack (13, 14) fed to a receiving part (23) can be set on an intermediate holder, in particular on a claw (28, 29, 30) which moves up and down in cooperation. 1-10, characterized in that the blank stacks (13, 14) can be set on individual conveyors (37, 38).
The device according to any one of 1. 12. The support wall (50,9) of the tilt conveyor (46,87) on one side of the tilt bearing (55,100) away from the blank stack (13,14).
0), and a substantially horizontal extension surface of the receiving portion (23, 24) and, in its initial position, a support member including a support leg (47, 48) and a claw (88, 89). However, the receiver (2
3, 24), and in the tilted position, the support walls (50, 90) are approximately the blank magazines (25, 2).
6) is characterized in that it is arranged in the middle of a substantially horizontal extension surface of the blank magazine (25, 26) which is higher than the extension surface of the receiving portion (23, 24) as in the plane of 6). Claim 1 having
The device according to any one of -12.