JPH11199053A - Loading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a loading device that can load in various patterns in spite of simple constitution, at high loading speed and can stably load even heavy loads. SOLUTION: A bar 7a of a pressing arm 7 is brought into contact with cases arranged in a line on a stand-by conveyor 3 along an X-axis, and the lined-up cases are led in and placed on a conveying plate 8 horizontally movable in the direction of a Y-axis. The conveying plate 8 and pressing arm 7 are synchronously moved to convey the cases toward a position directly above a pallet loading position on a pallet conveyor 9. Upon reaching the position above the loading position, the conveying plate 8 is moved toward the stand-by conveyor 3 in the state of being held by a stopper plate 12 or the loaded lined-up cases and the pressing arm 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stacking device capable of stacking loads in various states.

[0002]

2. Description of the Related Art As an example of a stacking apparatus, a palletizer for stacking continuously fed cases on a pallet in a plurality of stages has been conventionally used for stacking cases in the following manner. . (1) The cases are held one by one by a robot hand and stacked in order. As a method of gripping the case, there are a suction method using a vacuum pad and a method using a manipulator. (2) A plurality of cases are simultaneously grasped and stacked. (3) A case mounting plate that can be moved up and down and reciprocates is provided above the stacking position. After stacking one stage of cases on the case mounting plate, the case mounting plate is evacuated and stacked. (4) A plurality of conveyors are arranged side by side, and the cases are dropped and stacked simultaneously in each row.

[0003]

According to (1), the cases are stacked one by one, so that the cases can be stacked in various patterns, but the stacking speed is slow. In addition, when a vacuum pad is used, it is hard to be sucked depending on the outer shape of the case, and when a manipulator is used, a long case loses weight balance and may drop the case. In addition, in both cases, there is a risk of dropping the heavy case. According to (2), since a plurality of cases are stacked at one time, the operation speed is improved. However, it is difficult to change the number of grips, which imposes restrictions on the stacking pattern, and simultaneously grips a plurality of cases. Therefore, the device becomes large, complicated, and expensive. The stacking ability is improved by (3), but the setting needs to be changed each time the type of case changes or the pattern changes for each step. Although the stacking ability can be improved by the method (4), the stacking pattern is restricted, and the case is shaken when dropping, so that the case falls or the stacking becomes unstable. In addition, by using multiple conveyors,
It will be expensive.

[0004] Therefore, the invention according to claims 1 to 6 is:
It is an object of the present invention to provide a stacking device which can be stacked in various patterns with a simple configuration, has a high stacking speed, and can stably stow even heavy loads.

[0005] The invention according to claim 7 or 8 is:
In addition to the objects of the invention as set forth in claims 1 to 6, the height of the case to be stacked is higher than the bottom area, and the case which is likely to fall down on the conveyor is transported sideways to the alignment conveyor and then stacked. It is an object to obtain a stacking device capable of standing in a posture.

[0006]

Means for Solving the Problems In the present invention, claim 1 is provided.
The invention described in (1) is an apparatus for stacking continuously sent luggage in a plurality of stages on a stacking member, wherein an arbitrary number of the sent luggage is arranged in a line and a receiving position. , A transport mechanism that receives luggage from the standby conveyor, and collectively moves the luggage to a stacking member, and supports the stacking member at a desired height at a stacking position. With a lifting mechanism to
A transport plate for horizontally transporting the transport mechanism between a receiving position for receiving the load from the standby conveyor and a stacking position, a sending unit for sending the load from the standby conveyor to the transport plate, and a standby conveyor and a stacking member. Between
A pressing arm that moves horizontally above the transfer plate in relation to the movement of the transfer plate and presses the load on the transfer plate from the standby conveyor side to the loading position side; and moves the load moved to the loading position to a predetermined position. And a positioning member for performing positioning. In addition,
The row shape in the present invention includes a single row, a plurality of rows, or a mixed form thereof.

[0007] The invention described in claim 2 is the first invention.
In the invention described in the above, when the transfer plate moves in the direction of the stacking position, the pressing arm synchronizes with the transfer plate and moves in the direction of the stacking position together with the transfer plate to assist the transfer of the load on the transfer plate. When the transport plate moves from the loading position to the receiving position, the transport plate stops until the transport plate separates from the loading position to transfer the load on the transport plate onto the loading member, and the load is placed on the loading member. When transferred, they are associated so as to move to the standby conveyor side while reducing the size.

[0008] Further, the invention according to claim 3 is based on claim 1.
Alternatively, in the invention described in Item 2, the waiting conveyor is provided with an alignment conveyor that once aligns the luggage and then sends the luggage to the receiving position.

In addition, a fourth aspect of the present invention is that, in the first to third aspects of the present invention, the positioning member is a stopper plate provided along an edge of the stacking member.

According to a fifth aspect of the present invention, in the first to third aspects of the present invention, the positioning member is a positioning arm which cooperates with the pressing arm and is located on the front side in the pressing direction. It is in.

Further, the invention described in claim 6 is the first invention.
In the inventions described in any of the first to fifth aspects, in place of the sending means, the pressing arm sends the load from the standby conveyor onto the transport plate.

On the other hand, the invention described in claim 7 is the first invention.
In the invention as set forth in any one of Items 1 to 6, the standby conveyor crosses the first and second conveyors at a center position with respect to each other with a horizontal axis as a reference, and rotates the first and second conveyors around the horizontal axis. And the second conveyor can be stopped alternately in a horizontal posture.

According to an eighth aspect of the present invention, in the invention according to the seventh aspect, the rotation of the standby conveyor slightly passes through a position where the first or second conveyor temporarily takes a horizontal posture, and thereafter, That is, it is executed so as to reverse to take a horizontal posture.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Two embodiments of a palletizer for stacking continuously fed cases on a pallet in a plurality of stages as one example of a stacking device according to the present invention will be described with reference to the drawings. .

FIG. 1 is a left side view of a palletizer according to a first embodiment, FIG. 2 is a front view of a front part of the palletizer, and FIG. 3 is a front view of a back part of the palletizer. The palletizer according to one embodiment includes a gantry 1, an alignment conveyor 2, a standby conveyor 3, a pressing arm 7, a transfer plate 8, a pallet lifter 10, a control device 13, and the like. Are stacked in a row. Note that the left side in the width direction is taken as the X axis, the depth in the depth direction is taken as the Y axis, and the depth in the height direction is taken as the positive axis.

The gantry 1 is a frame structure which supports each member of the palletizer and is arranged outside the palletizer. The alignment conveyor 2 is installed in front of the palletizer with the Y-axis direction as a longitudinal direction. The alignment conveyor 2
The width is equal to the stacking width, and a roller group is provided on the upper surface. A case stopper 2a configured to freely advance and retreat a locking plate that can be locked to the side surface of the row-shaped case is made movable in the longitudinal direction of the conveyor according to a setting by an actuator (not shown). It is installed at the top. Note that a case introduction conveyor 2b is arranged adjacent to the left measuring side of the alignment conveyor 2. The standby conveyor 3 is a roller conveyor having a roller group on the upper surface, the width of which is equal to the stacking width, and is installed at the back of the alignment conveyor 2 in the same longitudinal direction and height. Immediately behind the standby conveyor 3, a case stopper 5 that can be locked to the lower rear portion of the row-shaped cases is installed so as to be movable in the Z-axis direction by an actuator (not shown). The case pusher 4 is configured such that a contact plate having a width equivalent to the stacking width and capable of contacting the front of the row-shaped cases is made movable back and forth along the Y axis by an actuator (not shown). , And arranges the row-shaped cases from the conveyor 2 to the standby conveyor 3.
It can be transferred to.

The pressing arm 7 is provided with a bar 7a which can be brought into contact with the front surface of the row-shaped case at the tip thereof and which is extended in the X-axis direction by a width equal to the stacking width, and is capable of freely expanding and contracting along the Z-axis. A part thereof is accommodated in the saddle 6, and a part thereof is attached to the sliding portion 6a of the saddle 6, and is connected to a not-shown telescopic drive device in the saddle 6. Saddle 6 is the stand 1
It is installed via wheels on the upper side, and can travel along the Y-axis together with the pressing arm 7 by a driving device (not shown). The transport plate 8 is a plate on which the row-shaped cases can be placed on the upper surface, and has wheels 8f, 8f,... At each corner of the lower surface, and is about the width of the gantry 1. The rails 8e, 8e attached along
f, 8f... Here, the transport plate 8 and the standby conveyor 3 have the same height. Also,
On the lower inner side of each of the rails 8e, 8e, a chain 8c hung on chain wheels 8b, 8b is stretched along the Y axis. Chain wheels 8b of different chains 8c are connected by rotating shafts 8a, 8a extending along the X-axis. Each chain 8c is provided with a bracket 8d, and each bracket 8d is attached to the lower surface of the transport plate 8. When the drive unit (not shown) rotates the rotation shaft 8a, the transfer plate 8 is moved from the receiving position adjacent to the standby conveyor on the Y axis positive side with the case stopper 5 interposed therebetween to the stacking position on the pallet.
It can move along an axis.

The pallet lifter 10 is provided with a pallet conveyor 9 on an upper surface of a top plate of the X-type lift. The pallet lifter 10 can be moved up and down with the pallet mounted thereon by a driving device (not shown). It is installed nearby. Note that the width of the top plate and the pallet of the pallet lifter 10 is slightly larger than the width of the row case and smaller than the space between the brackets 8d of the transport plate 8, and the size is slightly larger than the bottom area of the stacking pattern. In addition, stand 1
Of the parts located on both sides of the pallet lifter 10,
A pair of photoelectric sensors 11 are attached at a height of the rail 8e. Further, in the back of the gantry 1, the surface is located immediately behind the top plate of the pallet lifter 10,
A stopper plate 12 as a positioning member is attached.

The control device 13 controls the overall operation of the palletizer, has an operation panel (not shown) on its surface, and is installed in front of the palletizer. Then, the control device 13, as shown in FIG.
a, a program management unit 13b, a device monitoring unit 13c, a driving command unit 13d, and the like. Pattern management unit 13a
Stores the pattern information and case information to be stowed, and performs an operation using the information to create palletizer operation data. The program management unit 13b stores a program that defines the operation of the palletizer,
The palletizer operation data created by the pattern management unit 13a is imported as a parameter, and an actual operation program is created together with the storage program. Device monitoring unit 13c
Captures the outputs of sensors and monitors the state of the flow of the case. The driving command unit 13d gives an operation command to various driving devices in accordance with the information of each of the above units.

The operation of the palletizer of the first embodiment configured as described above will be described with reference to FIGS. First, the pallet 14 having the same size as the top plate of the pallet lifter is set on the pallet conveyor 9, and the row cases C1 are introduced from the case introduction conveyor 2b to the alignment conveyor 2. At this time, the transfer plate 8
Is in the receiving position, the upper surface of the pallet 14 placed on the pallet conveyor 9 is slightly lower than the upper surface of each conveyor, and has the same height as the photoelectric sensor 11, and the pressing arm 7 is retracted to the rising end in the Z-axis position. At the Y-axis position, the case stopper 5 is located on the negative side of the case stopper 5 by a distance slightly longer than the maximum depth of the row-shaped cases C1, and the case stopper 5 is raised. Next, case pusher 4
Is driven, and the row-shaped case C1 is pushed in the positive direction of the Y-axis to be transferred to the standby conveyor 3. Thereafter, the row-shaped cases C1 flow down on the standby conveyor 3 in the positive Y-axis direction,
Abut. This contact position is the receiving position. At the same time, the row cases C2 to be loaded next time are
(FIG. 5A).

When the row-shaped cases C1 come into contact with the case stopper 5 whose surface coincides with the edge of the pallet 14, the pressing arm 7 advances downward (in the negative Z-axis direction) (FIG. 5).
(B)). When the pressing arm 7 completes the advance, the case stopper 5 retreats downward, and the saddle 6 moves in the Y-axis positive direction. Then, the row-shaped case C1 is changed to the bar 7a.
And the result transport plate 8 receives the row-shaped cases C1. At the same time, the case-like
Is moved to the standby conveyor 3 and starts flowing down in the Y-axis positive direction (FIG. 5C). Subsequently, the transport plate 8 and the saddle 6 move in the Y-axis positive direction in synchronization. This movement ends when the row-shaped cases C1 abut on the stopper plate 12 (FIG. 5D).

Thereafter, the transport plate 8 is returned in the negative Y-axis direction while the row-shaped cases C1 are held between the stopper plate 12 and the pressing arm 7. Then, the row-shaped case C1
Are transferred to the pallet 14. During this time, the next row-like case C3 to be stacked is introduced (FIG. 6E). When the row cases C1 are transferred to the pallet 14, the saddle 6
However, while retracting the pressing arm 7 in the positive direction of the Z-axis, the maximum depth of the row-shaped case C2 from the case stopper 5 is approximately
It returns to the position distant in the Y-axis negative direction (FIG. 6E). Then, similarly to the case of the row-shaped case C1, the row-shaped case C2 is received by the transport plate 8, and then transported in the Y-axis positive direction until the row-shaped case C2 comes into contact with the front of the row-shaped case C1. At the same time, the row cases C3 are transferred to the standby conveyor 3. (FIG. 6 (g)). Thereafter, with the row-shaped case C2 and the pressing arm 7 sandwiching the row-shaped case C2,
The transport plate is returned in the negative direction of the Y-axis, and the row-shaped cases C2 are stacked on the pallet 14 adjacent to the row-shaped cases C1.
At this time, the row cases C1 are pressed by the stopper plate 12. By repeating the above operation, row cases are stacked. When one row of row cases is stacked in this way, the pallet lifter 10 is driven with reference to the photoelectric sensor 11 to lower the pallet 14 by the height of the highest case among the steps. Then, the next stage is similarly stacked. FIG. 6 (h) shows that 4
This shows a case where the second-stage row-shaped cases C6 are stacked on the pallets 14 which can be stacked in a row.

As described above, the palletizer of the first embodiment according to the present invention is stacked on a pallet for each case arranged in a row, so that the palletizing speed is high. Moreover, if the arrangement of the cases is changed for each row of cases, the cases can be stacked in various patterns. For example, as shown in FIG. 7, a stacking pattern of a long rectangular parallelepiped case can be stacked in three operations of two horizontal rows of three cases and one vertical row of five cases per stage. Further, a case row composed of four cases each of two pieces in length and width as shown in FIG. 8 is formed on the standby conveyor,
One stage can be stacked in one operation. Further, since the row cases are placed on the transport plate 8, even heavy cases can be stably stacked. Further, since the pressing arm 7 performs the receiving of the row-shaped cases to the transport plate 8, the assistance of the transport by the synchronous operation, and the pinching of the row-shaped cases when the pallets are transferred, the simple configuration ensures no waste. Can be stacked. Further, since the alignment conveyor 2 is provided in front of the standby conveyor 3, it is easy to introduce a row of cases having various patterns, and the number of luggage that can be on standby increases, so that the loading speed is further improved. . In addition, since the stopper plate 12 is provided along the pallet edge, the case can be stably transferred to the pallet with a simple configuration.

[Second Embodiment] FIG. 9 is a side view of a palletizer according to a second embodiment of the present invention, FIG. 10 is a front view of a front part of the palletizer, and FIG. 11 is a front view of a back part of the palletizer. The palletizer according to the second embodiment includes a standby conveyor 23, a saddle 26, a pressing arm 2
2. Except for the positioning arm 27 as a positioning member,
The configuration is the same as that of the first embodiment. The same reference numerals are given to members configured in the same manner as in the first embodiment, and the X axis and the like are also the same as in the first embodiment. In addition, the case is a substantially rectangular parallelepiped, and the row-shaped cases are arranged in one row in all parts.

The standby conveyor 23 is formed by forming a first roller conveyor 23e and a second roller conveyor 23f in a cross shape at right angles, and a pair of brackets 23 installed on the gantry 1 is provided.
a is fixed to a shaft 23b which is supported by a. A pair of channels 2 that are cross-shaped plate members are provided at both end edges of the shaft 23b.
3c are fixed, and rollers 23d, 23d,... Pass at equal intervals between the respective channels 23c. The shaft 23d is connected to a driving device (not shown) so that the entire standby conveyor 23 can be rotated while allowing the entire standby conveyor 23 to stop at a position where a portion parallel to the Y axis exists (a total of four positions). Has become.

The saddle 26 is provided with a pair of sliding portions 26a at different positions only in the Y-axis. Further, the sliding portion 26a on the negative side of the Y-axis is movable in the Y-axis direction with respect to the saddle 26. Except for this point, it is the same as the first embodiment. In the pressing arm 22 and the positioning arm 27 on the negative side of the pressing arm, the situation is similar to that of the sliding portion 26a, and the bars 22a and 27a are provided respectively, and can be extended and contracted in the Z-axis direction independently of each other. Have been.

The operation of the palletizer according to the second embodiment will be described with reference to FIGS. First, the row cases C1 are introduced into the alignment conveyor 2. Here, the longest side of each case is set along the Z axis. At this time, the transport plate 8 is
3, the standby conveyor 23 is at a receiving position adjacent to the positive side of the Y-axis, the first roller conveyor 23e is kept horizontal, and the pressing arm 27 is positioned such that the Y-axis position is on the positive side of the vertical portion of the standby conveyor 23. And Z
The axial position is retracted to the upper end, and the positioning arm 27 is positioned closer to the Y axis positive side than the pressing arm 22 by a distance slightly larger than the longest longest side of each of the row-shaped cases C1. The position is adjusted by the saddle 26 and is retracted to the upper end.

Next, the row-shaped cases C1 are transferred to the horizontal portion of the standby conveyor 3 in the same manner as in the first embodiment and flow down to the second roller conveyor 23f in the vertical posture. At the same time, the row cases C2 are introduced into the alignment conveyor 2 (FIG. 12A). When the row case C1 comes into contact with the second roller conveyor 23,
The standby conveyor 3 turns forward (counterclockwise in the drawing)
I do. As a result, the first roller conveyor 23e and the second
The roller conveyor 23f is switched, and the Y axis and the Z axis of the row-shaped case C1 are switched. More specifically, this turning is performed by an operation of slightly turning over the rotation angle of 90 ° and then turning back to just 90 °. By this turning operation, the row case C
1 slightly moves in the positive direction of the Y-axis to form a gap with respect to the vertical portion of the standby conveyor 23. The pressing arm 22 advances into this gap (Z-axis negative direction), and at the same time, the positioning arm 2
7 advances. Then, the positioning arm 27 is connected to the saddle 2
6 is slightly moved in the Y-axis positive direction, and the row case C1 is clamped between the positioning arm 22 and the pressing arm 27. After the rotation of the standby conveyor 23 is completed, the row case C2 is newly formed. The sheet is transferred to the second roller conveyor 23f that is in the horizontal posture (FIG. 12B).

Thereafter, the case stopper 5 is temporarily lowered, and the saddle 26 is moved in the positive Y-axis direction, so that the transport plate 8 receives the row-shaped cases C1. When it is completely received, the movement of the transport plate 8 synchronized with the movement of the saddle 26 is started (FIG. 12C). When the row cases C1 are transported above the pallet 14 stacking position, the movement stops. During the movement, the turning of the standby conveyor 23 is executed again, and the row-shaped cases C2 are turned forward. Further, the row-shaped cases C3 are introduced into the alignment conveyor 2. (FIG. 12 (d)). Then, while being held by the positioning arm 22 and the pressing arm 27, the transport plate 8 is returned in the negative Y-axis direction, and the row cases C1 are transferred to the pallet 14. At this time, the row-shaped case C2
Are stopped by the case stopper 5, and the row-shaped cases C3 are moved to the standby conveyor 23 (FIG. 13).
(E)).

Subsequently, in order to stack the row-shaped cases C2, the saddle 26 returns in the Y-axis negative direction while the positioning arm 22 and the pressing arm 27 are retracted in the Z-axis positive direction. Then, the case C2 is conveyed in the same manner as the case C1. When the positioning arm 22 is in the row case C1
(FIG. 13 (f)), the saddle 26 stops, and the positioning arm 22 retreats. After the retraction is completed, the saddle 26 further moves in the positive direction of the Y-axis to bring the row-shaped case C2 into contact with the row-shaped case C1 (FIG. 12 (g)). Then, with the row-shaped case C2 sandwiched between the row-shaped case C1 and the pressing arm 27, the transport plate 8 is returned and the row-shaped case C
2 is transferred to the pallet 14. At this time, the row cases C3 on the standby conveyor 23 are turned, and the row cases C4 are introduced (FIG. 13 (h)). Note that the pallet lifter 10 descends according to the state of the photoelectric sensor 11 every time the step is filled, and the second and subsequent steps are similarly stacked.

Since the palletizer of the second embodiment according to the present invention is configured as described above, although it is restricted as compared with the first embodiment, it can be stacked in various patterns. As in the first embodiment, the pattern stacking speed is high, and heavy objects can be stably stacked. Further, the positioning arm 22 is connected to the saddle 2
6, the cases can be stably stacked at any position. In addition, the introduction of the load into the transport plate 8 is performed by rotating the cross-shaped standby pallet 23.
And the case stopper 5, so that the height of the case to be stacked is higher than the bottom area, and the case where there is a risk of overturning in the conveyor conveyance is transported sideways to the alignment conveyor and then stacked. Can be erected. Further, since the rotation of the standby pallet 23 is performed so as to stop in a horizontal posture after slightly overshooting, the pushing arm 27 can easily advance, and the flow of the row cases becomes smooth.

The embodiments of the present invention are not limited to those described above, but can be variously modified as partially shown below. If the row-shaped cases can be introduced into the standby conveyor, there is no need to provide an alignment conveyor for once aligning the cases. The driving of the transport plate is not limited to the one driven by the chain, but may be the one driven by a motor or hydraulic pressure mounted on itself. In addition, the driving device can be arbitrarily changed. The combination of the cruciform standby conveyor and the positioning arm is not indispensable but arbitrary, and a positioning arm may be provided instead of the stopper plate in the first embodiment. In the second embodiment, it is not necessary to further perform the pressing operation after the retracting of the positioning arm, and the transport plate may be returned while being held between the pressing arm and the positioning arm while leaving an arbitrary amount of gap. The association of the operation of the pressing arm with respect to the transport plate is not limited to the above, and only the synchronous movement at the time of transporting the load and the stop at the time of transferring the stacking member may be performed, and the delivery from the standby conveyor may not be performed. . In this case, the case is sent from the standby conveyor to the transport plate by a sending means such as a case pusher.
The control of the palletizer may not be performed by the control device, but may be partially performed manually.

[0033]

According to the stowage device of the present invention, since the loads arranged in a row are placed on the load carrying plate and conveyed, the load speed is high and the load is heavy. Can also ensure stability. In addition, since the luggage transport plate is retracted while being held by the arm, the stowage can be stabilized. If the arrangement of the luggage is changed for each row, the luggage can be stacked in various patterns. In addition, according to the stowage device according to the second aspect, a very smooth stowage operation can be realized, and according to the stowage device according to the third aspect, introduction of luggage is facilitated, and standby is performed. The possible luggage increases and the loading speed is further improved. Further, according to the stowage device of the fourth aspect, the positioning member can have a simple configuration.
According to the packing device described in (1), more stable packing can be performed, and positioning can be performed at an arbitrary position. Furthermore, according to the stowage device of the sixth aspect, the stowage operation can be performed substantially only by the pressing arm and the transport plate.

According to the stacking device of the seventh and eighth aspects, in addition to the effects of the invention of the first to sixth aspects, the height of the case to be stacked is higher than the bottom area, and the conveyor is conveyed. The case which may fall down at the time of can be set up in a posture for stacking after being conveyed sideways to the alignment conveyor, and furthermore, according to the stacking device according to claim 8, the cross-shaped standby conveyor Even if there is, the pressing arm can be easily extended.

[Brief description of the drawings]

FIG. 1 is an explanatory left side view of a first embodiment of a palletizer according to the present invention.

FIG. 2 is an explanatory front view of a front portion of the first embodiment.

FIG. 3 is an explanatory front view of a back portion of the first embodiment.

FIG. 4 is an explanatory diagram of a control device.

FIGS. 5A to 5D are diagrams illustrating a stacking operation according to the first embodiment.

FIGS. 6 (e) to 6 (h) are illustrations of a stacking operation according to the first embodiment.

7A is an explanatory front view of an example of a stacking pattern, FIG. 7B is an explanatory diagram of an odd-number cross section, and FIG. 7C is an explanatory diagram of an even-number cross section.

8A is a front view of another example of the stacking pattern, FIG. 8B is an explanatory view of an odd cross section, and FIG. 8C is an explanatory view of an even cross section.

FIG. 9 is an explanatory left side view of a second embodiment of the palletizer according to the present invention.

FIG. 10 is an explanatory front view of a front part of a palletizer according to a second embodiment.

FIG. 11 is an explanatory front view of a back portion of the second embodiment.

FIGS. 12A to 12D are diagrams illustrating a stacking operation according to the second embodiment.

FIGS. 13 (e) to 13 (h) are illustrations of a stacking operation according to the second embodiment.

[Explanation of symbols]

1. stand, 2. alignment conveyor, 2a, 5 case stopper, 3, 23 standby conveyor, 4. case pusher, 6, 26 saddle, 6a, 26a sliding part, 7 , 27 ... Pressing arm, 7a, 22a, 27
a bar, 8 transport plate, 8a rotary shaft, 8
b ··· Chain wheel, 8c · · chain, 8d · · bracket.
8e ·· rail, 8f ·· wheel, 9 ·· pallet conveyor, 10 ·· pallet lifter, 11 ·· photoelectric sensor,
12. Stopper plate, 13 Control device, 13a
..Pattern management unit, 13b..Program management unit, 1
3c ··· Equipment monitoring unit, 13d ··· Drive command unit, 14 ···
Pallet, 22 positioning arm, 23a bracket, 23b axis, 23c channel, 23d
-Roller, 23e-1st roller conveyor, 23f-
Second roller conveyor.

Claims (8)

[Claims] 1. An apparatus for stacking continuously sent packages on a stacking member in a plurality of stages, wherein an arbitrary number of the sent packages are arranged in a line and placed at a receiving position. Conveyor, a package for receiving packages from the standby conveyor, and moving the packages collectively onto a stacking member, and supporting the stacking member at a desired height at a stacking position. A lifting mechanism, wherein the transport mechanism horizontally moves between a receiving position for receiving the load from the standby conveyor and a loading position, a loading means for transmitting the load from the standby conveyor to the transport plate, and a standby conveyor. Between the loading plate and the stacking member, horizontally moving above the transport plate in association with the movement of the transport plate, and loading the load on the transport plate from the standby conveyor side to the loading position. An arm pressing operates pressed against the side stowage configuration the stowage device and a positioning member for positioning the package has moved into position to position. 2. The pressing arm, when the transport plate moves in the direction of the stacking position, synchronizes with the transport plate and moves in the direction of the stacking position together with the transport plate to assist in transporting the load on the transport plate. When the transport plate moves from the loading position to the receiving position, the transport plate stops until the transport plate moves away from the loading position to transfer the load on the transport plate onto the loading member, and the load is transferred onto the loading member. 2. The stacking device according to claim 1, wherein the stacking device is associated so as to move to the standby conveyor side while being reduced while being loaded. 3. The stacking device according to claim 1, wherein an alignment conveyor for once aligning the luggage and sending the luggage to a receiving position is added to the standby conveyor. 4. The stacking device according to claim 1, wherein the positioning member is a stopper plate provided along an edge of the stacking member. 5. The stacking device according to claim 1, wherein the positioning member is a positioning arm that cooperates with the pressing arm and is positioned on the front side in the pressing direction. 6. The stacking device according to claim 1, wherein the pressing arm is configured to transmit the load from the standby conveyor onto the transport plate instead of the transmitting means. 7. A standby conveyor, wherein the first and second conveyors cross each other at a central position with respect to a horizontal axis with reference to a horizontal axis, and are rotated about the horizontal axis, whereby the first and second conveyors are rotated. The stacking device according to any one of claims 1 to 6, wherein the conveyors can be alternately stopped in a horizontal posture. 8. The method according to claim 7, wherein the rotation of the standby conveyor is performed such that the first or second conveyor temporarily passes through a position where the first or second conveyor assumes a horizontal posture, and then reverses to assume a horizontal posture. Loading equipment.