JP3353073B2 - Semi-stacked packaging device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a process for packing two or more snacks or the like packed in a cardboard box using a vertical bag making and filling machine. The present invention relates to a package stacking device for stacking packaged products in a half-stacked state at high speed. 2. Description of the Related Art Conventionally, an apparatus for stacking such packaged products in a half-stacked state has an upstream belt conveyor and a downstream belt conveyor, and the downstream belt conveyor is arranged with respect to the upstream belt conveyor. If the package is dropped from the upstream belt conveyor onto the downstream belt conveyor, the downstream belt conveyor stops the dropped package by step-transporting the package, and is provided at the rear end of the package. The leading ends of the packages to be dropped next are overlapped, and the overlapping is repeated one after another. [0003] The above-mentioned conventional apparatus has a problem that the falling position is not constant and sometimes does not overlap. In addition, since it depends on a parabolic fall, it is difficult to change the processing speed, and high-speed processing cannot be performed. The present invention has been made in view of the above points, and raises a rear portion of a package to be transported in a transport direction.
A half-stacking device that can perform a half-stacking operation by inserting the front part of the subsequent package in the transfer direction below it, can change the processing speed in various ways, and can process at high speed and reliably. It is intended to provide. [0005] The present invention provides a method for solving the above-mentioned problems by providing a large number of rollers 11,.
, A part of each of the rollers 11 is mounted, and an endless belt 12 that is continuously driven and driven to rotate frictionally to transfer the packaged product W at a low speed, and a number of rollers 21,. A downstream roller conveyer device 20 for carrying out high-speed transfer of the package W by frictionally rotating the endless belt 22 on which a part is placed and intermittently driven as required, and a package product provided downstream of the upstream roller conveyer device 10 When the transfer detection sensor 30 outputs a required number of signals, the gate plate 41 is operated to prevent the package W from passing through the gate plate 41.
And a stopper 50 provided at the end of the downstream roller 21 for stopping the conveyed packages W provided at the end of the conveyor device.
And the roller 2 of the downstream roller conveyor device 20
One or a plurality of sets of packages W are disposed below 1, and the push-up plate 60 a is pushed up from the gap between the rollers 21 based on the detection signal of the package detection sensor 70 corresponding to the set and is stopped on the rollers 21. And a package tilting means 60 which tilts the package W by lifting the rear portion in the direction by a required dimension, and stops the subsequent package W by the push-up plate 60a, and then returns downward. apparatus. The packages W, W... Are supplied one after another at required intervals onto the upstream roller conveyor device 10. Package W
Is transferred from the upstream roller conveyor device 10 to the downstream roller conveyor device 20, the transfer speed is increased, and the paper is transported with an interval between the preceding and following packages W. The package transfer detection sensor 30 detects a package W transferred to the downstream roller conveyor device 20 each time and outputs a signal. Multiple packages W to be processed at one time
Is transferred to the downstream roller conveyor device 20, the gate plate 41 operates to allow the subsequent passage of the packaged goods W.
Transfer is prevented, and the package W is pooled on the upstream roller conveyor device 10. Downstream roller conveyor 20
The first package W transferred above is stopped by the stopper 50 at the downstream end. As soon as the first packaged product W stops, the corresponding first packaged product detection sensor 70 detects the packaged product W and outputs a signal. The package inclination means 60 corresponding to the package W is driven to push up the push-up plate 60a from the gap between the rollers 21 to raise the rear part of the package W in the transfer direction and to incline the package W. Subsequently, the second packaged product W transferred on the downstream roller conveyor device 20 is:
The first packaged product W enters the lower side of the rear part in the transport direction and is stopped by the push-up plate 60a. In the configuration in which a single set of the package inclination means 60 is provided, the two packages W, W are stacked half-stacked by the above operation, and the downstream roller conveyor device 20 is stopped. In a configuration in which a plurality of sets of the package inclination means 60 are provided, the second and third push-up plates 60a are provided with corresponding second or third package detection sensors 70, respectively. The push-up operation is performed based on the signal output by detecting and outputting the second package W. For the second and subsequent packages W, the rear of the package W in the transfer direction by the push-up plate 60a is lifted and the subsequent packaging is performed. The stop of the articles W is sequentially repeated to perform a half-stacking operation of the package articles W, and the downstream roller conveyor device 20 is stopped. The last package W is only stopped by the push-up plate 60a and is not inclined. Two or three or more packages W, which are in a semi-stacked state at the downstream portion of the downstream roller conveyor device 20 described above.
Is fed sideways to the side of the conveyor, or sucked or gripped by an industrial robot or the like, and packed in a cardboard box. Each push-up plate 60a corresponds to the balance with the means for transferring the semi-stacked packages W,... To another place, and immediately after the semi-stacked state, or in the semi-stacked state, .. Are appropriately returned and lowered to any one after the movement. Are moved, the downstream roller conveyor device 20 is restarted and the package gate 4 is moved.
When 0 is opened, the required number of packages W on the upstream roller conveyor device 20 are transferred to the downstream roller conveyor device 20, and the half-stacking operation is started again. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a half-stacking apparatus for packaged goods according to the present invention will be described below with reference to the drawings. The half-stacking device for packaged goods according to the present invention comprises an upstream roller conveyor device 1.
0 is supplied at a required interval, and is transferred to the downstream roller conveyor device 20 to be transported at a required high speed and the package W is supplied.
The first package W transferred to the end of the downstream roller conveyor device 20 is stopped by the stopper 50. Then, the package W is detected by the package detection sensor 71, and based on this, the push-up plate 61a is pushed up from the gap between the rollers 21 to lift and incline the rear portion of the package W in the transfer direction, and is tilted by the push-up plate 61a. The operation of stopping the subsequent package W is performed by the first to third package inclining means 61,
By repeating in order at 62 and 63, four packages W
Are sequentially stacked in a back-up half-stacked state, and when four packages W are detected by the fourth package detection sensor 74, the downstream roller conveyor device 20 is stopped based on this, and these packages are W is wrapped by the package lateral feeding means 80 from the front and back and one side in the conveyor transfer direction, and is pushed to the other side and is half-stacked with the help of an elevator into a cardboard box waiting on the conveyor side. It is provided so that it can be stored as it is, and this can be repeatedly stored in multiple stages.
On the other hand, in each operation of accumulating the four packages W in a half-stacked state, the fifth package W is not transferred from the upstream roller conveyor device 10 to the downstream roller conveyor device 20. The number of packages W to be transferred in one stacking operation is detected by the package transfer detection sensor 30, and when four packages W are transferred, the package gate 4 is detected.
0, the leading package W is pressed and stopped on the downstream roller conveyor device 20 by the gate plate 41, and the rotation of the roller 21 on which the package W to be stopped is stopped by the roller stopping means 90. Are pooled in a spread state, and the supply of the packages W to the upstream roller conveyor device 20 may be stopped when the packages W are fully filled. In the upstream roller conveyor device 10, a number of rollers 11 are laid in parallel on pin shafts supported on both ends of a frame 13, and each of these rollers 11
Is placed on an endless belt 12 of a belt winding mechanism continuously driven by a first motor 14 (not shown). Similarly, the downstream roller conveyor device 20 has a large number of rollers 21 laid in parallel, and one end of each of the rollers 21 has a second motor 24 (not shown).
Is mounted on an endless belt of a belt winding mechanism that is continuously driven by. Therefore, the roller 21 is rotated by friction with the endless belt 22 to transfer the package W. The transfer speed of the downstream roller conveyor device 20 is set to a required higher speed than the transfer speed of the upstream roller conveyor device 10, and the transfer speed of the downstream roller conveyor device 2 from the upstream roller conveyor device 10 is reduced.
The gap between the front and rear of the package W which shifts to zero is opened. The first motor 14 and the second motor 24 employ a servomotor, and are driven by a controller 100 via a driver (not shown). The second motor 24 is intermittently driven as required. In addition, each endless belt 12,22
Is slid over strips 15 and 25 provided by frames 13 and 23. Also,
The two roller conveyors 10 and 20 are connected to the first motor 1
Instead of being driven separately by the fourth and second motors 24,
The two belt winding mechanisms may be connected via a clutch and a transmission, and may be driven only by the first motor 14. The package transfer detection sensor 30 and the first to fourth package detection sensors 71, 72, 7
Each of the photodetectors 3 and 74 detects a package W flowing on the downstream roller conveyor device 20 from the side and outputs an electric signal to the controller 100. The first to fourth package detection sensors 71, 72, 73, 74 are provided with the stopper 50 or the first to third push-up plates 61 a, 62 a, 63.
The first to fourth packaged products W that stop contacting a
Are provided on the side of the conveyor so as not to interfere with the package traversing means 80. When the package W is detected, an electric signal is transmitted to the controller 10.
0 is output. Controller 100
Are the first to fourth packaged goods detection sensors 7
1, 72, 73, and 74 detect the corresponding first to fourth packages W,..., And receive and process the electrical signals. The package transfer detection sensor 30 is connected to the downstream roller conveyor device 20.
Provided at the upstream end of the upstream roller conveyor device 10
Is detected, and an electric signal is output to the controller 100. The stopper 50 is provided at the end of the downstream roller conveyor device 20 so as to be adjustable, and is the first packaged product W transferred on the downstream roller conveyor device 20.
To stop. The first to third package inclining means 61, 62, and 63 are double-acting pneumatically arranged so as to be adjustable below the rollers 21 of the downstream roller conveyor device 20, respectively. Cylinder devices 61b, 62b, 63
b (may be a magnet cylinder device) as a drive source,
Upward piston rods 61b ', 62b', 63
The first to third push-up plates 61 at the end of b '
a, 62a, 63a are provided vertically, and the first to third push-up plates 61a, 62a, 6 are formed by the extension operation of the air cylinder devices 61b, 62b, 63b.
3a rises from the gap between the rollers 21. First to third thrust plates 61a, 6
The rising position of 2a, 63a is in the air cylinder device 61.
It can be changed by adjusting the positions of b, 62b and 63b. Each of the air cylinder devices 60b is supplied with high-pressure air from a compressor (not shown) via an electromagnetic valve (not shown). A detection signal of the corresponding package detection sensor 70 is input to the controller 100, and the controller 1
The electromagnetic valve is controlled to open and close based on an electric signal output from the motor 00 to be extended. Thrust plate 6
0a is a width that stands up to the full length of the roller 21,
Four packaged products W half-stacked by the package lateral feeding means 80
Is raised when the paper is pushed to the side of the conveyor, and also serves to guide the half-stacked state so as not to collapse. In each of the air cylinder devices 60b, after the package laterally feeding means 80 pushes the four packages W to the side of the conveyor, the air cylinder device 60b operates to contract and descend the push-up plate 60a. The package lateral feeding means 80 is provided above four packages W,... Which are successively stacked in a half-stacked state by the stopper 50 and the package inclination means 60. The package lateral feeding means 80 includes an air cylinder device 81.
The suspension frame 83 is supported by the vertically movable lifting plate 82,
The suspension frame 83 is horizontally movable to the side of the conveyor by an air cylinder device 84 attached to the elevating plate 82. The suspension frame 83 is provided with a lateral feed plate 85, a front enclosing plate 86, and a rear enclosing plate 87. It is hanging. And the transverse feed plate 8
5, the front enclosing plate 86 and the rear enclosing plate 87 are lowered so as to be close to the roller 21 by the extension operation of the air cylinder device 81, and are stacked on the downstream side roller conveyor device 20 in a semi-stacked state. Are surrounded from three sides, and then four packaged articles W,... Are pushed out to the side of the conveyor by the extension operation of the air cylinder device 84. Thereafter, the air cylinder device 81 and the air The cylinder device 84 is successively reduced in size, performs a box motion operation, and returns above the conveyor. The controller 100 outputs a control signal necessary for the air cylinder device 81 to perform the extension operation when a signal output by detecting and outputting the fourth package W by the fourth package detection sensor 74 is input. Three push-up plates 61a, 62a, 63a pushing up between the rollers 21, 21
Performs guidance to maintain the four packages W in a half-stacked state in the horizontal feeding by the horizontal feeding plate 85, and returns downward after the horizontal feeding. For this reason, each push-up plate 6
A slit 85a is provided so as not to interfere with Oa. The package gate 40 is provided with the air cylinder device 4.
2, the air cylinder device 42 is mounted with the piston rod 42a facing downward, and a gate plate 41 having a sponge 41a attached to the lower surface is horizontally provided at the tip of the piston rod 42a. The roller stopping means 90 is mounted with the air cylinder device 91 as a drive source, with the piston rod 91a of the air cylinder device 91 facing upward, and at the tip of the piston rod 91a,
A roller stop plate 92 having a rubber 92a attached to its upper surface is provided horizontally. When the output signal of the package transfer detection sensor 30 is counted four times by the controller 100, the controller 100 sends the air cylinder device 42 of the package gate 40 and the roller stopping means 9.
0, a control signal is output to the air cylinder device 91,
In the package gate 40, the air cylinder device 42 extends and operates, the gate plate 41 is lowered, and the leading package W is pressed and stopped.
Further, the roller stopping means 90 is configured so that the air cylinder device 91 is extended and the roller stopping plate 92 is raised to press and stop the required number of rollers 21 on which the package W is placed. Next, the operation of the embodiment having the above configuration will be described.
The packaged articles W, W,.
Are supplied one after another at required intervals. When the packaged product W is transferred from the upstream roller conveyor device 10 onto the downstream roller conveyor device 20, the speed of the packaged product W is increased and the interval between the packaged product W is increased. Detects the transfer and outputs an electric signal to the controller 100. When the four packages W are transferred to the downstream roller conveyor 20, the gate plate 41 descends to stop pressing the first package W on the upstream roller conveyor 10 and to stop the roller stop plate. 92 stops pressing the roller 21 on which the leading package W is placed.
Therefore, the subsequent packages W, W,... On the upstream roller conveyor device 20 are stopped one after another in a packed state, and the packages W are pooled. Downstream roller conveyor 20
The first package W transferred above is stopped by the stopper 50 at the downstream end. As soon as the first package W stops, the corresponding first package detection sensor 71 detects the package W and sends an electric signal to the controller 1.
00, the controller 100 drives the first air cylinder device 61b based on the detection signal, and the push-up plate 61a pushes up from the gap between the rollers 21 and 21 to lift the rear portion of the package W in the transfer direction. The first package W is inclined. Subsequently, the second packaged product W enters the lower side of the first packaged product W and is stopped in contact with the first push-up plate 61a.
“a” pushes up based on the detection signal of the second package detection sensor 72 to incline the second package W. Subsequently, the third packaged product W is also stopped in contact with the second push-up plate 62a, and is pushed up by the third push-up plate 63a which is pushed up based on the output signal of the third packaged product detection sensor 73. And tilt. The fourth package W is stopped in contact with the third push-up plate 63a.
With the above, the half-stacking operation of the packages W is completed, and the downstream roller conveyor device 20 is stopped based on the detection signal of the fourth package detection sensor 74. Thereafter, the four packages W, which are in a half-stacked state at the downstream portion of the downstream roller conveyor device 20, are surrounded on three sides by the package lateral feeding means 80 and are pushed to the side of the conveyor, and are packed in cardboard boxes. It is. Thereafter, the first to third air cylinder devices 61b, 62b, 63b are contracted and the push-up plates 60a are lowered, the gate plate 41 is returned and raised, the roller stop plate 92 is returned and lowered, and the downstream roller The conveyor device 20 is driven again, and the half-stacking operation is repeated again. After the package traversing means 80 rises, it returns to above the conveyor. As described above, according to the apparatus for stacking packaged goods according to the present invention, the rear part of the package to be transferred is lifted in the transfer direction, and the packaged part of the following package is placed below it. The half-stacking operation can be performed by inserting the front part in the transfer direction, and the processing speed can be changed in various ways.
It can be processed reliably and is suitable for a half-stacking device for packaged products in a process before packing packed products such as snacks packed in a vertical bag making and filling machine in a cardboard box.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic front view of a packaged half-stacking apparatus according to an embodiment of the present invention in the middle of stacking. FIG. 2 is a schematic front view of the half-stacked stacking device of FIG. 1 at the end of stacking. FIG. 3 is a schematic front view showing a state in which the half-stacked packages of the half-stacked stacking device of FIG. FIG. 4 is a schematic right side view of the packaged half-stacking apparatus of FIG. 1; [Description of Signs] W Packaged product 10 Upstream roller conveyor device 11 Roller 12 Endless belt 20 Downstream roller conveyor device 21 Roller 22 Endless belt 30 Package transfer detection sensor 40 Package gate 41 Gate plate 50 Stopper 60 Package inclination means 60a Thrust plate 70 Package detection sensor

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65B 35/50-35/52 B65G 47/26-47/32

Claims (1)

(57) [Claim 1] An upstream roller conveyor device in which a number of rollers are frictionally rotated by an endless belt continuously driven with a part of each roller placed thereon to transfer a package at a low speed. A number of rollers are mounted on a downstream roller conveyor device that performs frictional rotation by an endless belt that is driven intermittently as necessary with a part of each roller mounted thereon and that performs high-speed transfer of packages, and is provided downstream of the upstream roller conveyor device. When the package transfer detection sensor outputs a required number of signals, the gate plate operates to prevent the passage of the package by the gate plate, and the transfer gate provided at the end of the downstream roller conveyor device. One or more sets are provided below the rollers of the downstream roller conveyor device, and a stopper for stopping the incoming packaged articles. The lifting plate is pushed up from the gap between the rollers and stopped on the roller based on the detection signal of the package detection sensor corresponding to the set. And a package tilting means for lowering and returning after stopping the packaged product. 2. The package stacking apparatus according to claim 1, wherein said stacking means is provided above a plurality of packages which are sequentially stacked in a half-stacked state by said stopper and said package inclination means. And a package side feeding means for lowering after the downstream roller conveyor device stops and surrounding these packages from the front and rear in the conveyor transfer direction and from one side to the other side to push the package to the other side. A half-stacked stacking device for packaged goods.