JP2532555Y2 - Corrugated sheet loading equipment - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] Industrial field of application The present invention is a cardboard sheet loading device that can stably load long and short sheet-length corrugated cardboard sheets and can cope with a large variety of small lots. It is about.

2. Description of the Related Art Conventionally, as a corrugated cardboard sheet stacking device, a slidable stopper is arranged at a position opposed to the leading end of a conveyor, a main conveyor is arranged below a stacking position between the conveyor and the stopper, and A corrugated cardboard sheet stacking device has been put to practical use in which an auxiliary conveyor is installed so as to be able to move forward and backward from a portion toward a lower portion of a stopper, and to be able to move up and down between a conveyor and a main conveyor.

Then, the cardboard sheets conveyed from the conveyor are abutted by stoppers that have been slid according to the sheet length, and are placed on the auxiliary conveyor based on the leading end of the conveyor. In this case, cardboard sheets with different sheet lengths are stacked, and no major trouble occurs on the reference side of the end of the conveyor, but the stopper slides on the stopper side, so the long cardboard sheet is placed on the short cardboard sheet. In the case of placing, the leading end of the long corrugated cardboard sheet is conveyed to the place where the corrugated cardboard sheet does not exist at the front part of the short corrugated cardboard sheet, and it has a disadvantage that it can not be aligned and stacked due to inclination or collapse of the load. Such a defect has also occurred in the main conveyor.

In addition, since a long corrugated cardboard sheet cannot be stacked on a short corrugated cardboard sheet, the number of times the main conveyor moves up and down and the auxiliary conveyor moves up and down increases the corrugating machine production speed even when the corrugated cardboard sheet group is separated. There was a drawback that it was not possible to follow, and the production speed of the corrugated machine had to be reduced.

In addition, in the auxiliary conveyor that moves forward and backward, in order to transfer the loaded corrugated cardboard sheets to the main conveyor, when retreating to the lower part of the transport conveyor, it moves in the direction opposite to the flow direction of the corrugated cardboard sheets, and uses vinyl, rubber, etc. Due to the friction between the surface of the auxiliary conveyor having a membrane and the lowermost cardboard sheet, all the stacked cardboard sheets were not smoothly transferred to the main conveyor, causing a load collapse.

The problem to be solved by the invention is that the delivery roller and the stopper at the end of the telescopic conveyor are slidable, and the cardboard sheets are stacked at the loading center, so that the long sheet length can be placed on the short sheet length cardboard sheet. Can load cardboard sheets,
It is an object of the present invention to provide a corrugated cardboard sheet stacking apparatus capable of coping with the production of many kinds and small lots in which long and short sheet lengths are mixed.

[Structure of device]

Means for Solving the Problems In view of such a point, the present invention makes the delivery roller at the end of the telescopic conveyor freely movable back and forth, and makes the stopper provided at the position opposed to the front end of the telescopic conveyor free to move forward and backward,
On the other hand, a plurality of sets of endless auxiliary conveyors having a plurality of receiving portions are provided in a lower portion between the telescopic conveyor and the stopper, and the auxiliary conveyor is configured to be movable up and down, and a main stacker is arranged below the auxiliary conveyor. The receiving section and the receiving section are provided with a corrugated cardboard sheet stacking apparatus as a group of rollers to solve the above-mentioned drawback.

According to the present invention, a corrugated cardboard sheet is conveyed from a telescopic conveyor by distributing a roller and a stopper in accordance with a sheet length of the corrugated cardboard sheet and sliding a transfer roller and a stopper, and moving a receiving portion of an auxiliary conveyor to a loading position. A cardboard sheet on the receiving part by contacting with the stopper, then change the order and sort the sheet around the loading center by changing the sheet length, slide the delivery roller and the stopper, and slide the cardboard sheet with different sheet length. The sheets are sequentially stacked with the same center, and when a predetermined amount of cardboard sheets are stacked, the cardboard sheets are transferred onto the main stacker.

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 is a telescopic unit arranged via a discharge conveyor 2 in front of a corrugating machine (not shown) for bonding three sheets in a pre-process. The telescopic conveyor 1 has a base roller 3 and a transfer roller 4 slidable in the front-rear direction, with a belt or the like wrapped around the base roller 3 and a slidable lower part. A tension is applied to a belt or the like by a free tension roller 5 and an idle roller 6.

Reference numeral 7 denotes a stopper slidable in the front-rear direction and provided in front of the telescopic conveyor 1 so as to be slidable in the front-rear direction. The drive chain 10 is wound around the fixed roller 8 and the idle roller 9, and the drive shaft 11 is engaged with the drive chain 10. The stopper 7 is fixed to the drive chain 10.

The lower end of the stopper 7 is arranged to protrude below the drive chain 10 so that the lower end of the stopper 7 can freely contact the upper layer of the cardboard sheet M stacked on the receiving portion 18. However, the present invention is not limited to this configuration.

In addition to the method of engaging the drive shaft 11 on both the upper and lower sides of the drive chain 10, the drive shaft 11 is slidable in the front-rear direction, and is engaged only on the upper portion of the drive chain 10. The stopper 7 may be moved by driving the drive chain 10 at high speed by rotation and sliding of 11, or a rack and a pinion may be formed instead of the drive chain 10.

Reference numerals 12 and 13 denote endless auxiliary conveyors disposed below the telescopic conveyor 1 and the stopper 7, and the auxiliary conveyors 12 and 13 are arranged in parallel, and the first chain 14 of the auxiliary conveyor 12 is vertically movable. It is wound horizontally by the first elevating shafts 15 and 15a and is hung on a driving sprocket 17 connected to a first motor 16 at a lower portion.
14, a pair of receiving portions 18, which are composed of a group of rollers at substantially opposite positions,
The auxiliary conveyor 13 has the same configuration as the auxiliary conveyor 12, and the second chain 19 of the auxiliary conveyor 13 is horizontally wound by the vertically movable second elevating shafts 20, 20a. The second chain 19 is engaged with a driving sprocket 22 connected to the second motor 21. The second chain 19 is provided with a pair of receiving portions 23 and 23a formed of a group of rollers at substantially opposite positions.

Reference numeral 24 denotes a vertically movable main stacker (main conveyor) disposed below the auxiliary conveyors 12 and 13.

Next, the operation of the cardboard sheet stacking device according to the present invention will be described. The stacking position A corresponding to the sheet length of the cardboard sheet M is described.
(Corresponding to the upper part of the main stacker 24), the delivery roller 4 and the stopper 7
To the predetermined position, and the first elevating shafts 15, 15
a to raise the receiving portion 18 of the auxiliary conveyor 12 to the loading position A.
And the receiving portion 23 of the auxiliary conveyor 13 is moved to the standby position B (a position other than the loading position A), and the cardboard sheet M conveyed from the telescopic conveyor 1 is brought into contact with the stopper 7 and dropped, The receiving unit 18 (auxiliary conveyor 12) is gradually lowered by a sensor (not shown).
The corrugated cardboard sheet M is stacked on top.

Next, while the order is changed and the corrugated cardboard sheet group M is cut off by the telescopic conveyor 1, the delivery roller 4 is distributed around the loading center by changing the sheet length.
And the stopper 7 are slid to predetermined positions, and the cardboard sheets M having different sheet lengths are sequentially stacked with the same center.

When a predetermined amount of the cardboard sheet M is stacked on the receiving portion 18, the main stacker 24 is raised,
A receiving unit 18 composed of a roller group driven by a first motor 16
Is advanced in the flow direction of the corrugated cardboard sheet M, the upper layer of the corrugated cardboard sheet M is kept in contact with the lower end of the stopper 7 and its horizontal position is maintained. The rollers of the receiving portion 18 rotate to transfer the cardboard sheet M onto the main stacker 24 from the advancing receiving portion 18.

Thereafter, the cardboard sheets M are further stacked on the main stacker 24, and when a predetermined amount of the cardboard sheets M are stacked, the receiving portion 23 of the auxiliary conveyor 13 is moved to the loading position A, and is placed on the receiving portion 23. While the next group of corrugated cardboard sheets M are stacked, the main stacker 24 moves to convey the corrugated cardboard sheets M to the next step, and this step is sequentially continued.

In the case of the longest corrugated cardboard sheet M,
Receiving part 18 of auxiliary conveyor 12 and auxiliary conveyor at loading position A
Thirteen receiving portions 23 are continuously arranged, and the receiving portions 18 and 23 advance in the opposite directions when transferring to the main stacker 24, and when the short corrugated cardboard sheet M is continuous, the transfer roller 4 is used.
And the stopper 7 is advanced to load the paper at the front of the loading position A.

[Effect of the invention]

In short, according to the present invention, the delivery roller 4 at the tip of the telescopic conveyor 1 is movable back and forth, and the stopper 7 provided at the position opposite to the distal end of the telescopic conveyor 1 is movable back and forth. Can be stacked so that the cardboard sheets M having a long and short sheet length can be stacked, so that the collapse of the cargo can be prevented, the long cardboard sheets M can be stacked on the short cardboard sheets M, and therefore, the auxiliary conveyor 12, which is performed for each lot, The number of steps 13 and the number of times the main stacker 24 moves up and down can be reduced to prevent the corrugated sheet stacking machine from stagnating the work and to cope with small-lot production of many types, preventing a decrease in the production speed of the corrugating machine and corrugated sheet production line. It is.

A plurality of sets of endless auxiliary conveyors 12, 13 having a plurality of receiving portions 18, 18a, 23, 23a are provided below the telescopic conveyor 1 and the stopper 7, and the auxiliary conveyor 1
Since the upper and lower units 2 and 13 can be freely moved up and down, and the main stacker 24 is disposed below the auxiliary conveyors 12 and 13, three types of loading methods can be selected according to the sheet length, and a wide range of utilization methods can be achieved.

Also, since the receiving parts 18, 18a, 23, 23a are a group of rollers,
When transferring the cardboard sheets M loaded on the main stacker 24 from the receiving portions 18, 18a, 23, 23a of the auxiliary conveyors 12, 13, the rollers and the cardboard sheets M can be smoothly transferred without friction.

Further, as shown in the embodiment, if the receiving portions 18, 18a, 23, 23a advance in the same direction as the flow direction of the corrugated cardboard sheet M, the corrugated cardboard sheet M comes into contact with the lower end of the stopper 7 and the main stacker 24, the delivery roller 4 of the telescopic conveyor 1 and the loaded cardboard sheet M can be prevented from collapsing without contact, and a gap is to be generated between the delivery roller 4 and the cardboard sheet M. In addition, there is no need to previously set a gap in the relevant portion, and the loading can be performed smoothly.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a basic configuration diagram of a cardboard sheet stacking apparatus, FIG. 2 is a schematic plan view of an auxiliary conveyor section, and FIG. 3 is another embodiment of a stopper driving section. FIG. 4 is a side view of the example at the time of loading at the loading center, FIG. 5 is a side view at the time of transfer to the main stacker, FIG. 6 is a side view at the time of order change, and FIG. FIG. 8 is a side view when the length is the longest, and FIG. 8 is a side view when the corrugated cardboard sheets having a short sheet length are continuous. 1 ... Telescopic conveyor, 4 ... Delivery roller 7 ... Stopper, 12 ... Auxiliary conveyor 13 ... Auxiliary conveyor, 18, 18a ... Receiving unit 23, 23a ... Receiving unit, 24 ... Main stacker

Claims (2)

(57) [Scope of request for utility model registration] The delivery roller at the end of the telescopic conveyor can be moved back and forth, and a stopper provided at a position facing the end of the telescopic conveyor can be moved back and forth, while a plurality of receiving rollers are provided at a lower portion between the telescopic conveyor and the stopper. A cardboard sheet stacking device, comprising a plurality of sets of endless auxiliary conveyors having bearings, wherein the auxiliary conveyors can be moved up and down, and a main stacker is arranged below the auxiliary conveyors. 2. A cardboard sheet stacking apparatus according to claim 1, wherein said receiving portion is a group of rollers.