JPH1077120A - Automatic arranging and piling device for packing bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently perform supply of empty trays to respective loading devices corresponding to plurality of bagging packing machines, stage stacking and a carry of actual trays on a single line. SOLUTION: This stage stacking device is composed of a horizontally arranged empty tray supply conveyor 18, loading units 19a to 19b which are arranged above them in carrying directional plural places of an empty tray supply conveyor and intermittently and horizontally move them at a constant feed in its height position by raising empty trays 1a on a conveyor to a prescribed height position and successively arrange packing bags in the empty trays by a slide conveyor 6 of an added packing machine 13, an actual tray three-stage stacking device 21 which stacks actual trays 1b on which the packing bags are arranged in three stages, a turntable type three-stage stacking actual tray direction changing device 23 to change the direction of three-stage stacking trays 1c according to its necessity, a multistage stacking device 25 to stack the three-stage stacking actual trays in many stages or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic packaging machine for automatically arranging packaging bags, particularly retort packaged goods, in empty trays supplied separately, and stacking the actual trays in a retort manner. The present invention relates to an automatic stacking and stacking device for packaging bags to be sent to a sterilizing pot.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. 3-124615 (FIG. 14)
), An empty tray stacker 3 for supplying the empty tray 1a to the tray conveyor 2, and a loading unit 4 for receiving the actual tray 1b from the tray conveyor 2 and transporting the tray 1b upward.
The tray conveyor 2 that connects the two devices and intermittently horizontally moves the empty tray 1a at a constant feed rate based on the information set in the control device 5;
(Retort packaged goods) are conveyed in a line in a direction perpendicular to the moving direction of the tray conveyor 2 and slid in the same direction, into the empty tray 1 a on the tray conveyor 2 based on information set in the control device 5. An autoloader system provided with a slide conveyor 6 for putting and arranging the packaging bags W one by one is described.

In the above autoloader system,
If the packaging bag W on the slide conveyor 6 is displaced in the horizontal direction or disturbed in direction, the packaging bag W on the tray 1 will be misaligned as it is, so that the packaging bag W is aligned before the slide conveyor 6. ing. That is, the packaging bag W sent out from the bag packaging machine 13 is transported toward the slide conveyor 6 by the transport conveyor 8, and a sensor for detecting the packaging bag W and the guide plate 9 are provided near the exit side of the transport conveyor 8.
An alignment device 9 having a, 9b is installed, and the packaging bag W is detected by the sensor, and the signal is used to separate the guide plates 9a, 9b from both sides toward the packaging bag W being conveyed. The bags W are arranged. This operation is performed as an intermittent operation.

In the autoloader system, the loading unit 4 receives a real tray 1b from the tray conveyor 2, transports the tray 1b upward, and stores the tray 1b in a stacked state. Are sequentially transferred to the adjacent platform device 10. The base device 10 has an upper surface supporting the real tray 1b and the transferred real tray 1b.
Is controlled so that the height of the upper surface is appropriately changed so as to always receive the same height, and when a predetermined number of actual trays 1b are stacked, the stacked actual trays 1b are transferred to the transport cart 11 installed below. It is designed to be handed over.

[0005] The actual trays 1b delivered to the transport trolley 11 by the above-mentioned autoloader system are inserted into the retort pot 12 in a stacked state, sterilized by heating under pressure, mounted on the transport trolley 11 again, and not shown. The unloading device removes the packaging bags from the actual trays, and the empty trays that have become empty are stacked on a transport trolley and recycled to the autoloader 14.

[0006]

The autoloader system described above is a relatively small-scale production line composed of a bagging and packaging machine 13, an autoloader 14, and a retort pot 12, each as shown in the figure. When this is a mass production line that operates a plurality of bagging and packaging machines, the processing capacity of the autoloader 14 is insufficient. A large number of transport vehicles are required, which causes problems such as complications in the storage area and the transport route, and undesirably requires a large number of personnel.

[0007] The packaging bags that are packaged by the bag-filling and packaging machine 13 and discharged onto the conveyor 8 are conveyed in a state where the packing material is agglomerated at the bottom of the bags, and are placed in the empty tray as they are by the slide conveyor. At this time, the arrangement of the trays may be disturbed in the trays, uneven sterilization by the retort pot, or a suction error when the packaging bags are removed from the tray by vacuum suction in the unloading device, which may hinder subsequent processes. In particular, a self-standing bag, such as a self-supporting bag, which has a hard bottom and cannot be flattened only by laying the packaging bag on its side, tends to cause the above-described problems.

[0008] The present invention has been made in view of the above problems of the conventional apparatus, and even if a plurality of bag-filling and packaging machines are installed,
Automatic arrangement and stacking, which can efficiently supply empty trays, stacking and transporting actual trays to the arrangement device corresponding to each bagging and packaging machine on one line, and at the same time require less personnel. It is intended to provide a device. Also,
An object of the present invention is to level out the unevenness of the filling in the packaging bag discharged from the bagging and packaging machine, and to prevent the disorder in the arrangement in the tray, the sterilization unevenness, the suction error at the time of unloading, and the like. I do.

[0009]

An automatic stacking and stacking apparatus for packaging bags according to the present invention has, as a basic type, an empty tray supply conveyor installed horizontally, and a plurality of empty tray supply conveyors in the conveying direction of the empty tray supply conveyor. The empty tray on the empty tray supply conveyor is disposed above the empty tray supply conveyor, and the empty tray on the empty tray supply conveyor is lifted to a predetermined height position, and intermittently horizontally moved at a constant feed at the height position. A loading unit for sequentially arranging packaging bags in empty trays, a multi-stacking device for stacking the actual trays having the packaging bags arranged in multiple stages, and an actual transporting the actual tray between the loading unit and the multi-stacking device. It is characterized by having a tray transport conveyor. Here, the arrangement device is, for example, a slide conveyor that sequentially receives packaging bags, conveys the bags in a direction perpendicular to the moving direction of the empty tray, and slides in the front-rear direction. In the empty tray supply conveyor, for example, a plurality of short conveyors driven independently are arranged in series, and empty trays are placed one by one on each conveyor and transported.

In the automatic array stacking device, the loading unit includes, for example, an empty tray lifting device that grips and lifts an empty tray on an empty tray supply conveyor and transfers the empty tray to an empty tray support member installed at a predetermined height position. The apparatus includes the empty tray support member that horizontally and slidably supports the empty tray, and a feeding device that intermittently horizontally moves the empty tray on the empty tray support member at a constant feed. Further, the empty tray lifting device may be configured to be able to stop with the empty tray clamped at a standby position intermediate the positions of the empty tray supply conveyor and the empty tray support member.

The above-mentioned automatic arrangement and stacking device is provided with a tray direction changing device on the line of the actual tray transport conveyor as required. This tray direction change device has a conveyor and a turntable that moves up and down inside the conveyor, and can lift and change the direction of the actual tray stopped on the conveyor (for example, 90 ° and 180 ° in the forward and reverse directions).

In the automatic array stacking apparatus, the multi-stacking apparatus includes, for example, a conveyor for receiving the actual trays sent from the actual tray transport conveyor, and raising and lowering the actual trays together with the conveyor or separately from the conveyor. A stacking lifter, a positioning device for positioning an empty tray on the conveyor or on the stacking lifter, and a clamp device for holding the actual tray raised to a storage location by the stacking lifter in a suspended state.

Further, the automatic arrangement stacking device may include, if necessary, a small number stacking device for stacking the actual trays coming out of the loading unit in a number smaller than the number of stacks of the multi-stage stacking device and only about several stages. Prepare. This minor stacking device is, for example, a real tray lifting device that holds and lifts a real tray on a conveyor, a positioning device that positions a real tray at a raised position, and receives an actual tray from a real tray lifting device and receives it. An actual tray gripping / transporting device that grips and horizontally transfers to a stacking position, and a stacking lifter that moves up and down at the stacking position is provided. Further, the actual tray gripping and transferring device of the above-mentioned small-number stacking device is provided with a positioning metal fitting which comes into contact with the upper surface of the outer peripheral portion of the actual tray in a downward direction, while the actual tray lifting device is a lifting device which holds the outer peripheral portion of the actual tray from below. When the real tray is pressed against the positioning metal fitting by the lifting metal fitting, the real tray is positioned with respect to the real tray holding and transferring device. By pressing, even in the case of a real tray having distortion (distortion), the distortion is temporarily corrected, so that the positioning with respect to the real tray gripping transfer device can be performed accurately.

The automatic arrangement / stacking device is provided with a horizontally disposed empty tray feeding conveyer for conveying empty trays one by one as required, and at a terminal end of the empty tray feeding conveyer in a direction perpendicular to the end. Disposed, an inclined conveyor that receives an empty tray and intermittently conveys it in an obliquely downward direction while maintaining a horizontal state, and is disposed near the lower end of the inclined conveyor in a direction orthogonal to the inclined conveyor, and removes the empty tray from the inclined conveyor. A receiving conveyor for receiving and transferring the empty tray to the empty tray supplying conveyor is provided. Here, the inclined conveyor is attached to an endless track in which a hook portion supporting the front portion of the empty tray and a hook portion supporting the rear portion are synchronously rotated, and supports the tray horizontally and parallels obliquely downward. Moving.

Further, in the automatic arrangement / stacking apparatus, a belt-type press conveyor for flattening the packaging bags is installed before the arrangement apparatus as required. This belt-type press conveyor is composed of a belt conveyor that conveys packaging bags, and a belt conveyor that is installed above and opposed to the upper side and that can swing about the upstream side as a fulcrum, and adjusts the interval between both belt conveyors. It was free.

In the above description, each of the empty tray supply conveyor, the loading unit, the multi-stacking device, the tray direction changing device, the minor stacking device, the inclined conveyor, the belt type press conveyor, etc. Although described as a part of a line of a specific automatic array stacking device basically including a supply conveyor, a loading unit, a multi-stacking device, an actual tray transport conveyor, and the like, each of these devices has the specific line described above in view of its function. It is not limited to the use of the equipment, but it can be used alone or for the purpose of taking advantage of the function of each device, or a device for transporting trays, a device for arranging packaging bags in empty trays, a device for stacking actual trays, or other types of automatic arraying It can be used as appropriate as part of a stacking device.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an automatic stacking and stacking apparatus for packaging bags according to the present invention will be described in detail with reference to FIGS. As shown in FIGS. 1 and 2, the automatic stacking and stacking apparatus arranges the packaging bags W output from the two bag-filling and wrapping machines 13 on the empty tray 1a.
This is a device for stacking b.

The automatic array stacking apparatus will be described in order from the upstream side. For example, an empty tray feeding conveyor 16 for horizontally feeding empty trays 1a supplied one by one from an empty tray stacker as shown in FIG. An escalator-type inclined conveyor 17 that is installed in a direction orthogonal to the empty tray feeding conveyor 16 and lowers the fed empty tray obliquely in a horizontal position, and is installed in a direction orthogonal to the inclined conveyor 17 and delivered. Empty tray supply conveyor 18 for horizontally transporting the empty trays to the positions of the first and second loading units to be described later, and an empty tray supply conveyor, which is disposed above the two lines of the empty tray supply conveyor 18 The empty tray 1a on the lift 18 is raised to a predetermined height position, and water is intermittently fed at a constant feed at that height position. The moved, the first and second loading unit 19 to be arranged sequentially packaging bag W in the air tray 1a by a slide conveyor 6 which is attached (19A～1
9b), a pair of loading units (19a and 19
b) a real tray assembly conveyor unit 2 for delivering the real tray 1b sent out from the b) to the following real tray three-stacking device
0, an actual tray 3 stacking device 21 for stacking the actual trays 1b in 3 levels, 3 stacked by the actual tray 3 stacking device 21
A three-stack actual tray assembly conveyor 22 for delivering the actual stack trays 1c, a three-stack actual tray direction change device 23 for changing the orientation of the three-stack actual trays as needed, and a three-stack actual tray as follows: Real tray multi-stacking device 25, multi-stack real tray 1d for stacking a large number of times (for example, 11 times) to load the three-stack real tray supply conveyor 24 to be sent to the multi-stack device, and to load the three-stack real tray into the following retort sterilization pot Multi-stack tray tray conveyor 2 for temporarily pooling
6 mag. This multi-stack actual tray pool conveyor 2
The multi-stack tray on 6 is loaded into the retort sterilization tank 12 at a predetermined timing, and is discharged from the other end after sterilization. In addition, the transport line from the loading unit 19 to the actual tray multi-stacking device 25 is referred to as an actual tray transport conveyor in paragraph 0009.

Next, each device constituting the above automatic arrangement and stacking device will be described. First, FIGS. 3 and 4 show the empty tray feeding conveyor 16, the inclined conveyor 17, and the empty tray receiving conveyor 27. Empty tray feeding conveyor 1
Reference numeral 6 denotes a plurality of short conveyors which are driven independently, which are arranged in series, and each of the empty trays 1a is placed one by one, and the rear short conveyor is driven after the front short conveyor sends out the empty tray 1a. Then, the empty tray 1a is sent out to the short conveyor in front. Such a type of conveyor is also employed in the empty tray supply conveyor 18.

The inclined conveyor 17 is disposed at the end of the empty tray feeding conveyor 16 in a direction perpendicular to the empty tray feeding conveyor 16, receives the empty tray 1a, and intermittently conveys the empty tray 1a obliquely downward in a horizontal state. A plurality of hook plates 28a supporting the front portion and a plurality of hook plates 28b supporting the rear portion are attached at equal intervals to a pair of endless tracks 29a, 29b which are stretched obliquely in parallel with each other and rotate synchronously, The empty tray 1a is supported horizontally and moves obliquely downward and parallel. In the vicinity of the lower end of the inclined conveyor 17, a receiving conveyor 27 which is disposed in a direction orthogonal to the inclined conveyor 17 and receives an empty tray and transfers it to the empty tray supply conveyor 18 is provided.

According to the inclined conveyor 17, the empty tray 1a fed from the empty tray feeding conveyor 16 at a high position is obliquely lowered in an escalator manner to a low position separated by a predetermined distance, and is received by the receiving conveyor 27 near the lower end. Can be passed. Conventionally, when transferring an empty tray at a high place to a low place at a predetermined distance, an elevator for vertically lowering the empty tray, a tray conveyor for conveying the lowered empty tray horizontally for a predetermined distance, and an empty tray from the tray conveyor. A change-over conveyer is used to change the receiving direction and send it out. However, this conventional system has many standby units and low supply capacity. However, the use of the inclined conveyor 17 simplifies the apparatus, and the vertical movement and the horizontal movement are performed simultaneously, so that the transport time is shortened and the supply capacity is improved.

The empty tray 1a delivered from the inclined conveyor 17 to the receiving conveyor 27 is the empty tray supply conveyor 1
8, each loading unit 19 (19a-19)
b). As shown in FIG. 5, the empty tray supply conveyor 18 includes a plurality of independently driven short conveyors arranged in series. Each empty tray 1a is placed one by one. After confirming that there is no empty tray on the short conveyor, the apparatus is driven to send the empty tray to the short conveyor ahead. In addition, the said short conveyor is always in the position of the loading unit 19, a plurality of short conveyors are connected between each loading unit 19, and the empty tray 1a is always pooled in each of these short conveyors,
Waiting for the next move.

The empty tray supply conveyor 18 sends out empty trays to the front short conveyor after confirming that the empty trays 1a are loaded one by one on each short conveyor and the front short conveyor has run out of empty trays. Therefore, the empty trays do not collide with each other and are not damaged, and no impulsive sound is generated. The empty tray supply conveyer 18 is a single line, and here, each loading unit 19 (19) corresponding to two bag packing machines 13 is provided.
a to 19b) can be supplied with empty trays.
Even if one of the bagging / packaging machines fails and the corresponding loading unit stops, the empty tray can be supplied to the other loading units without any trouble. Further, there is an advantage that empty trays can always be replenished to each short conveyor and a standby position (a standby position of an empty tray lifting device described later), so that the empty tray can be supplied without interruption.

As shown in FIGS. 1 and 2, loading units 19 (19a to 19b) are installed at two places on the transport line of the empty tray supply conveyor 18. As shown in FIG. 5, the loading unit 19 is installed above the empty tray supply conveyor 18, and holds an empty tray 1a on the empty tray supply conveyor 18 at the left and right sides and lifts the empty tray 1a to a predetermined height position. An empty tray supply rail device 32 that receives an empty tray from the empty tray lifting device 31 and slidably supports the empty tray is provided with an empty tray pushing device 33 that intermittently pushes the empty tray on the empty tray supply rail device 32 forward by a predetermined distance. Here, the packaging bags are sequentially arranged by the slide conveyor 6. Reference numeral 34 denotes an actual tray delivery rail which can be moved up and down by a cylinder 34a. The actual tray delivery rail 34 supports the actual tray 1b pushed out from the empty tray supply rail device 32. Conveyor 4
Hand over to 5.

The empty tray lifting device 31 is provided with
6a, a pair of left and right gripping members 36 is provided.
6a is openable and closable, descends to the position of the empty tray 1a on the empty tray supply conveyor 18 with the pawl 36a opened, and closes the pawl 36a to grip the empty tray, and the position (empty) of the empty tray supply rail device 32. (Tray shown in phantom lines). The empty tray supply rail devices 32 also have a pair of left and right sides and have rails for placing empty trays inward and can be freely opened and closed.
Then, the empty tray is slidably supported on both inner rails by receiving and holding the empty tray held by the tray. In addition, 32a is a notch into which the claw 36a of the gripping member is fitted (so as not to interfere with each other). Further, the empty tray lifting device 31 includes an empty tray supply rail device 32.
While there is an empty tray above, empty tray supply conveyor 18
The empty tray is set to hold the empty tray at an intermediate position of the empty tray supply rail device 32 (the empty tray is indicated by a virtual line).

On the other hand, the bag-filling and packaging machine 13 is substantially the same as that shown in FIG. 14, but lacks a belt-type press conveyor 40 for leveling the unevenness of the packing in the packing bag W and a weight of the packing. The difference is that a weight sorter 41 that detects and removes a packaging bag is provided. Belt-type press conveyor 40
As shown in FIG. 6, a press-out conveyor 42 that conveys the packaging bags discharged from the bag-filling and packaging machine 13 and a press that is installed above and opposed to the upper side and that can swing about the upstream side as a fulcrum. It is constituted by a conveyor 43, and the minimum interval between both belt conveyors is adjustable by a stopper 44. Thereby, the packing bag is pinched and pressed from above and below to flatten and flatten the filling, and the unevenness of the filling is equalized. It is possible to prevent irregularities in the arrangement of the packaging bags, sterilization unevenness, and suction errors during unloading.

The operation procedure of the loading unit 19 and the slide conveyor 6 will be briefly described. The empty tray supply conveyor 18 below the loading unit 19 will be described.
When the empty tray 1a is conveyed onto the (short conveyor), the empty tray lifting device 31 grasps and lifts the empty tray, delivers it to the empty tray supply rail device 32, and then the empty tray pushing device 33 moves the empty tray forward. Horizontally, and then the slide conveyor 6 arranges the empty trays in the column direction in accordance with the information set in the control device (not shown). Intermittently push the empty tray by a predetermined distance, and the arrangement by the slide conveyor 6 is repeated. During this time, the empty tray lifting device 31 grasps the empty tray replenished on the empty tray supply conveyor 18 and stands by at an intermediate position, and the arrangement of the packaging bags by the slide conveyor 6 is completed. Pushes out the arrayed trays (real trays) from the empty tray supply rail device 32 and returns to the original position, then lifts the gripped empty tray and delivers it to the empty tray supply rail device 32.

The actual tray 1b extruded by the empty tray extruder 33 is placed on an actual tray delivery rail 34 and sent to the actual tray three-tier stacking device 21 by the actual tray assembly conveyor unit 20. The actual tray assembly conveyor unit 20 includes a pair of take-up conveyors 45 for taking the actual tray from the actual tray delivery rail 34, and a forward / reverse conveyor 46 at the position of the actual tray three-stage stacking device 21 therebetween. The actual trays taken from the adjacent loading units 19 are sequentially sent to the forward / reverse conveyor 46, and the forward / reverse conveyor 46 positions the actual tray below the actual tray three-stacking device 21.

As described above, the empty tray supply conveyor 18 is installed at a lower position, and the loading unit 19, the slide conveyor 6, the actual tray assembly conveyor unit 20, and the actual tray three-stage stacking device 21 are installed thereon, and each loading is performed. The unit 19 lifts the empty tray from the empty tray supply conveyor 18 to a high position, arranges the packaging bags therein, and thereafter conveys the position higher than the empty tray supply conveyor 18 until reaching the actual tray three-stage stacking device 21 ( (Two-stage transport system), so that each loading unit 19 interlocked with a plurality of bag-packing and packaging machines 13 is arranged in a compact space, and an empty tray can be supplied to each.

As shown in FIG. 7, the actual tray three-stage stacking device 21 is installed above the forward / reverse conveyor 46, grips the left and right sides of the actual tray 1b on the forward / reverse conveyor 46, and lifts it to a predetermined height. An actual tray lifting device 47, a positioning device 48 for positioning the actual tray at the lifting position, an actual tray that grips both sides of the positioned actual tray and transfers the actual tray by a predetermined distance in a direction orthogonal to the transport direction of the actual tray assembly conveyor unit 20. The gripping transfer device 49 includes a real tray three-stage stacking lifter 50 that sequentially stacks three real trays at three stages on a receiving table at the transfer end.

The actual tray lifting device 47 is provided with a lifting claw 4 which can be opened and closed freely in the left and right directions (with respect to the transport direction of the forward and reverse conveyor 46).
7a, it is lowered to the position of the actual tray 1b on the forward / reverse conveyor 46 with the lifting claws 47a opened, and the lifting claws 47a are closed there to wait. When the actual tray is positioned at a predetermined position on the forward / reverse conveyor 46 and the actual tray gripping / transporting device 49 is at a predetermined position on the forward / reverse conveyor 46, the lifting claw 47a is raised and the outer peripheral portion of the actual tray is moved downward. Hold it from and lift it. After being lifted, the positioning of the actual tray 1b is performed by the positioning device 48. The positioning device 48 is an openable and closable centering bracket 48 that comes into contact with the front and rear of the actual tray (in the transport direction of the forward and reverse conveyor 46).
a, and the actual tray 1b held on the lifting claw 47a is positioned by closing the centering metal fitting 48a which was initially opened.

Next, the lifting claws 47a are further lifted, and the actual tray 1b is pressed against the positioning fitting 51. The positioning metal fitting 51 is provided downward in the real tray holding and transferring device 49 (see FIG. 8), and the raised real tray 1 is lifted.
When the upper surface of the outer peripheral portion of b is in strong contact with this and there is distortion (distortion), the distortion is temporarily corrected (virtual line → solid line). This is performed for the purpose of accurately positioning the outer peripheral portion of the actual tray 1b with respect to the gripping claws 53 even when the actual tray 1b is distorted. The grasping claws 53 of 49 move inward to grasp the outer peripheral portion of the actual tray 1b, then release the pressing by the lifting claws 47a, and then horizontally move to a position above the actual tray three-tiered lifter 50 (FIG. 7).
Virtual line position).

The actual tray three-stage lifter 50 is a take-out conveyor 5 which is a part of the three-stage actual tray assembly conveyor 22.
4 and is driven by a cam 55 to move up and down as shown in FIG. First, when the first-stage actual tray 1b moves as shown by the arrow, the table 56 is located at a slightly lower position, and then rises slightly to receive the actual tray from the gripping claws 53 of the actual-tray gripping transfer device 49. At this time,
Since the actual tray is received by being pushed up from the gripping claws 53 (see the imaginary line), the impact is small, and the tray is not damaged and the impact noise is small.

Subsequently, the gripping claws 53 of the actual tray gripping / transporting device 49 are opened, and the table 56 is lowered to a position lower than the original position by the thickness of one actual tray, and stands by here. The device 49 is the original reversing conveyor 46
To the upper position. When the three trays are received by repeating this, the table 56 descends and the take-out conveyor 54
Transfer the actual trays stacked in three stages.

As described above, by stacking the actual trays in three stages by the actual tray three-stage stacking device 21, the actual trays sent from the left and right loading units 19 (19a and 19b) can be efficiently transported thereafter. , A three-stack actual tray assembly conveyor 22, 3 for delivering the three-stack actual tray 1 c conveyed from the actual tray three-stack device 21.
The operations in the stacking actual tray direction change device 23, the three-stage stacking actual tray supply conveyor 24, the actual tray multi-stacking device 25, and the like proceed without any delay. In addition, since the transport pitch is larger than when the actual trays are transported one by one, interference between the actual trays being transported is eliminated, so that damage to the trays and collision noise are prevented, and the transport speed can be reduced. It is effective in reducing sound.

The three-stack actual tray 1c from the three-stack actual tray apparatus is conveyed by a three-stack actual tray assembly conveyor 22. This three-tier actual tray assembly conveyor 22
Is, as shown in FIG.
Take-out conveyor 54 for receiving the three-stage stacked actual trays from the table 56, a three-stage stacked actual tray transport conveyor 59,
It is composed of a conveyor 60 that receives a three-tier stacking tray. These conveyors are installed adjacent to and parallel to the actual tray assembly conveyor unit 20, the empty tray supply conveyor 18, and the like, and the whole is compact in space.

The direction of the three-tiered stacking tray 1c received by the conveyor 60 (or the direction of the stored packaging bags) is corrected by the three-tiered stacking tray direction changer 23 as necessary. 90 ° or 180 ° in the opposite direction
Changed direction. This three-stage stacking tray change device 2
3 is, as shown in FIG. 11, an entrance-side direction change conveyor 61 installed inside the conveyor 60 so as to be able to move up and down,
Turntable type direction change device 6 in which turntable 62a is installed inside conveyor 62b so as to be able to move up and down.
2. A delivery direction change conveyor 63 is provided inside the three-stacked actual tray supply conveyor 24 to be described later so as to be able to move up and down.

When the three-level stacking tray 1c is positioned on the conveyor 60, the entrance-side direction change conveyor 61 is turned up, and is turned in a direction perpendicular to the conveying direction of the conveyor 60 to be turnedtable type. And the turntable type change-over device 62
b. Stop the three-tier stacking tray received at the center,
Here, the turntable 62a is lifted and rotated to change the direction of the three-tiered stacking tray, then lowered, and sent out again to the delivery-side direction change conveyor 63 by the conveyor 62b. The exit-side direction change conveyor 63 receives the three-stacked actual tray in the raised state, and then descends and transfers it to the three-stacked actual tray supply conveyor 24.

The turntable type direction changing device 62 mainly adjusts the direction of the packaging bag for the convenience of the subsequent process (the retort sterilization pot 1).
2), which is used when it is necessary to change in the direction of the packaging bag, the direction of the packaging bag at the time of box packing work). In addition, because of the necessity of the layout of the device, conversion in the 45 ° direction (when discharging in the 45 ° direction)
And the like can be appropriately made. In addition, the incoming and outgoing direction change conveyors 61 and 63 are a three-stage stacked actual tray assembly conveyor 22.
The three-stack actual tray 1c conveyed in the above-mentioned manner is transferred to a three-stack actual tray supply conveyor 24, an actual tray stacking device 25, and an actual stack tray tray conveyor 26 parallel to the three-stack actual tray assembly conveyor 22. This is provided because the layout of transport is adopted.

The three-stack actual tray 1c delivered to the three-stack actual tray supply conveyor 24 waits for stacking at the transport end, and is then sent to the actual tray stacking device 25. As shown in FIGS. 12 and 13, the actual tray stacking device 25 receives the three-stack actual tray 1 c sent out from the three-stack actual tray supply conveyor 24, and is configured to be able to move up and down by the stacking lifter 65. Conveyor 66 and the four trays 1c
Centering device 6 for simultaneously pressing and positioning corners diagonally
7 and three storage guides 68a to 68c for defining storage locations of the actual trays to be stacked, and left and right clamp devices 69 for holding the lowermost actual tray among them in suspension. The clamp device 69 includes a swingable lever 69b having a claw member 69a fitted at the end of the side surface of the actual tray.
It is swingable about the rear end and is composed of a lever 69c pivotally connected to the lever 69b, a stopper 69d, and a clamping cylinder 69e for swinging the lever 69b.
The unloading-side guide 68a is opened outward and rearward to enable unloading from the storage location of the stacking actual tray 1d.

The three-stacking actual tray 1c received on the stacking conveyor 66 of the actual tray stacking device 25 is aligned with the centering device 6.
7, and the stacking conveyor 66 is lifted to the storage location by the operation of the stacking lifter 65, the lowermost actual tray is clamped by the clamp device 69 to hold the whole tray suspended in the air, and then the stacking conveyor 66 is lowered. Then, the next three-tiered actual tray is received. After repeating this operation and stacking a predetermined number of actual trays, the unloading side guide 68a is opened, and the stacking actual tray 1d is unloaded by the stacking conveyor 66. In this example, the stacking lifter 65
And the stacking conveyor 66 are integrated, but the conveyor and the stacking lifter are separated, for example, the stacking lifter is provided so as to be able to move up and down inside the conveyor, the conveyor is only responsible for conveyance, and the stacking is handled by the stacking lifter. You may do so. As shown in FIG. 12, the stacked actual trays 1d are sequentially pooled on the stacked actual tray pool conveyor 26, and wait for insertion into the retort sterilization pot 12.

The stacking conveyor 66 on which the three-level stacking tray is placed is lifted, and the upper end of the three-level stacking tray is lifted first and hits the bottom of the three-level stacking tray held in the air by the clamp device 69. Upon contact, the clamping cylinder 69e operates to pull out the claw member 69a from the actual tray. However, if the pulling is impossible or delayed, the chain conveyor 66 will lift the actual tray together with the claw member 69a. However, even in that case, the lever 69
13 and 13, the mechanism of the clamp device 69 is not immediately destroyed. For example, a sensor for detecting the lift of the lever 69c is provided. If the stacking conveyor 66 is stopped when lifting is detected, the safety of the mechanism can be ensured.

[0043]

According to the present invention, even when a plurality of bagging / packaging machines are installed, supply of empty trays, stacking and transporting of actual trays to an arraying device corresponding to each bagging / packaging machine are realized. It can be performed efficiently on a book line, and the whole apparatus has a compact arrangement, and at the same time, required personnel can be reduced. Further, the press conveyor in the bag-filling and packaging machine can prevent unevenness in arrangement in the tray, uneven sterilization, suction error during unloading, and the like by leveling the unevenness of the filling in the packaging bag.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of the overall configuration of an automatic arrangement and stacking device for packaging bags according to the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a side view of an inclined conveyor that conveys an empty tray obliquely downward.

FIG. 4 is a front view thereof.

FIG. 5 is a front view showing an arrangement of an empty tray supply conveyor, a loading unit, an empty tray three-stage stacking device, and the like.

FIG. 6 is a side view of a press conveyor of the bag packing machine.

FIG. 7 is a side view of an actual tray three-stage stacking apparatus.

FIG. 8 is a view for explaining a tray correcting operation by the actual tray lifting device.

FIG. 9 is a view for explaining a lifting operation of the lifting table.

FIG. 10 is a front view of an actual tray three-tier stacking apparatus and a three-tier actual tray assembly conveyor.

FIG. 11 is a side view of a three-stacked actual tray direction changing device.

FIG. 12 is a front view of an actual tray stacking unit.

FIG. 13 is a side view thereof.

FIG. 14 is a perspective view showing a conventional apparatus for sterilizing a retort packaging bag.

[Explanation of symbols]

 1a Empty tray 1b Actual tray 1c Three-stage actual tray 1d Actual stack tray 6 Slide conveyor 12 Retort pot 13 Bag packing machine 16 Empty tray feeding conveyor 17 Inclined conveyor 18 Empty tray supply conveyor 19 (19a to 19b) Loading unit 20 Actual tray assembly conveyor unit 21 Actual tray three-stage stacking device 22 Three-stage actual tray assembly conveyor 23 Three-stage actual tray direction change device 24 Three-stage actual tray supply conveyor 25 Actual tray multi-stage stacker 26 Multi-stage actual tray pool conveyor

Claims (12)

[Claims] An empty tray supply conveyor installed horizontally and a plurality of empty tray supply conveyors are disposed above the empty tray supply conveyor at a plurality of positions in the transport direction of the empty tray supply conveyor. And a loading unit for sequentially arranging the packaging bags in the empty tray by an attached arrangement device, and an actual tray on which the packaging bags are arranged. Automatic stacking apparatus for packaging bags, comprising: a multi-stage stacking device for stacking a plurality of sheets in a plurality of stages; and an actual tray transport conveyor for conveying an actual tray between the loading unit and the multi-stage stacking device. 2. An empty tray lifting device which grips and lifts an empty tray on an empty tray supply conveyor and transfers the empty tray to an empty tray supporting member installed at a predetermined height position, and horizontally and slides the empty tray. 2. The automatic arrangement of packaging bags according to claim 1, further comprising: the empty tray supporting member that freely supports the sheet; and a feeding device that intermittently horizontally moves the empty tray on the empty tray supporting member at a constant feed. Stacking equipment. 3. The apparatus according to claim 2, wherein the loading unit lifting device stops the empty tray while clamping the empty tray at a standby position intermediate the positions of the empty tray supply conveyor and the empty tray support member. Automatic stacking device for packaging bags. 4. The arrangement device according to claim 1, wherein the arrangement device is a slide conveyor that sequentially receives the packaging bags, conveys the packaging bags in a direction perpendicular to the moving direction of the empty tray, and slides in the front-rear direction. Automatic stacking device for packaging bags. 5. A tray redirection device is provided on a line of an actual tray transport conveyor, the tray redirection device having a conveyor and a turntable that moves up and down inside the conveyor, and lifts an actual tray stopped on the conveyor. 2. The automatic stacking and stacking device for packaging bags according to claim 1, wherein the direction is changed. 6. The multi-stage stacking apparatus, comprising: a conveyor for receiving an actual tray sent from an actual tray transport conveyor;
A stacking lifter that raises and lowers the actual tray by each conveyor or separately from the conveyor, a positioning device that positions the actual tray on the conveyor or on the stacking lifter, and is raised to a storage location by the stacking lifter. 2. The automatic stacking and stacking device for packaging bags according to claim 1, further comprising a clamp device for holding the actual tray suspended. 7. The apparatus according to claim 1, further comprising a small stacking device for stacking the actual trays exiting from the loading unit by a number smaller than the number of stacks of the multi-stacking device and only about several stages thereof. Automatic stacking device for packaging bags. 8. An actual tray lifting device for holding and lifting an actual tray on a conveyor,
A positioning device for positioning the actual tray at the lifted position, an actual tray gripping transfer device for receiving the actual tray from the actual tray lifting device and gripping and transferring it to the stacking position, and a stage for moving up and down at the stacking position 2. The automatic stacking and stacking apparatus for packaging bags according to claim 1, further comprising a stacking lifter. 9. The actual tray lifting device of the above-mentioned minor stacking device has a lifting bracket for holding the outer peripheral portion of the actual tray from below, while the actual tray gripping and transferring device contacts the upper surface of the outer peripheral portion of the actual tray. 9. The package according to claim 8, wherein a positioning metal fitting is provided downward, and when the actual tray is pressed against the positioning metal fitting by the lifting metal fitting, the real tray is positioned with respect to the real tray gripping transfer device. Automatic bag stacking device. 10. An empty tray feeding conveyor, which is arranged horizontally for transporting empty trays one by one, and is disposed in a direction perpendicular to the empty tray feeding conveyor at the end of the empty tray feeding conveyor, receives the empty tray, and horizontally receives the empty tray. An inclined conveyor intermittently conveyed obliquely downwardly in a state, and a receiving unit arranged near the lower end of the inclined conveyor in a direction orthogonal to the inclined conveyor to receive an empty tray from the inclined conveyor and deliver the empty tray to the empty tray supply conveyor. The conveyor has a slanted conveyor, and a hook for supporting the front portion of the empty tray and a hook for supporting the rear portion of the empty tray are respectively mounted on endless tracks that rotate synchronously, and support the tray horizontally and obliquely downward. 2. The apparatus according to claim 1, wherein the apparatus moves in parallel.
Automatic stacking device for packaging bags described in the above. 11. The empty tray supply conveyor according to claim 1, wherein a plurality of independently driven short conveyors are arranged in series, and empty trays are placed one by one on each conveyor and transported. The automatic stacking and stacking device for packaging bags according to claim 1, wherein: 12. A belt conveyor for conveying packaging bags,
A belt-type press conveyor, which is installed facing the upper side of the belt conveyor and is swingable about the upstream side as a pivot point, and in which the interval between both belt conveyors can be adjusted, is provided in front of the above-mentioned arrangement device. 2. The automatic stacking and stacking apparatus for packaging bags according to claim 1, wherein the stacking and packaging apparatus is installed in a packaging bag.