JPH08319025A - Boxing method by stacker device - Google Patents

Abstract

PURPOSE: To efficiently perform storage by sliding an expanding cylinder to expand an inner frame in a direction of an outer frame, in the case of loading a product in a product loading surface of a stacker or in the case of retreating a product after storage, at the time when the product is stored in a storage case. CONSTITUTION: A product 2, arranging a prescribed number of the products in one row on a product conveying conveyer 40, is transfer loaded onto a product loading surface of a stock plate by advancing a pusher cylinder of a transfer loading device 20 in a side part of the product conveying conveyer 40. When transfer loading in the rearmost row on the product loading surface of the stock plate is completed, all the rows of the produced and the product with a prescribed number arranged in one row on the product conveying conveyer 40 are extruded to be transfer loaded by the pusher cylinder to the product loading surface generated by a shutter drive chain. Next a lift frame 10 of loading the product 2 according to extending a lift cylinder 12 is lowered down to a bottom part of a storage case 3, further to turn the shutter drive chain with the product loading surface disappearing, to store the product 2 in the storage case 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing method using a stacker device for automatically packing a fixed quantity of products packed in a pack tray in a storage case such as a container or a cardboard case. Is.

[0002]

2. Description of the Related Art In recent years, in the processing of shipping foods such as tofu and natto that are produced and shipped in large quantities, the products are often packed in a pack tray and then shipped to the market. The products packed in the production plants of these products are stored in a container or a storage case such as a cardboard case at the time of shipping.However, the labor saving of the manual boxing process is performed for the purpose of improving the productivity accompanying the mass production of the products. In order to reduce the processing time and processing time, automation is being implemented by mechanical devices.

There are various specifications of these automated machines and the like depending on the quantity and shape of the products to be stored. Generally, a pack tray for storing products such as tofu and natto has a relatively small size such as Styrofoam. It is made of flexible and easily damaged materials, while the storage case for these packed products is also made of light-weight materials such as cardboard and containers that take into consideration shipping and handling. . Therefore, in handling it, even if it is an automated mechanical device, etc., a mechanism was incorporated to prevent the packed product, the storage case, etc. from being damaged by interference with these mechanical devices. There are automatic storage machines and devices.

[0004]

However, an automatic storage machine or the like incorporating a mechanism for preventing the packed products and the storage case from being damaged due to interference generally has a large external appearance, and the mechanism is also large. The reality is that it is complicated. Therefore, if a failure occurs once or during regular maintenance work, disassembling and assembling will require work time, so we plan to mass-produce the product. There was also a problem in terms of maintenance.

Further, after the products packed by these automatic storage machines and devices are stored in the storage case, when the automatic storage machine or the like exits from the storage case, it interferes with the stored products and damages the products. In many cases, an accident that causes a problem occurs, resulting in a problem that efficient storage cannot be achieved.

Therefore, the present invention has been made in view of these circumstances, and when storing or leaving the automatic storage machine or device in a storage case, the storage is performed or interferes with a product that has been stored. It has a function that allows it to be stored and withdrawn without having to do so, and enables the efficient storage of products in the storage case because it has a structure that allows easy disassembly and assembly work in the event of a failure or inspection. It is an object of the present invention to provide a box packing method using a stacker device.

[0007]

The present invention has been made to achieve these objects, and the first feature of the invention of the method is to provide a packed product on a product transport conveyor. In a box packing device that stores in a storage case, the products that are lined up in a predetermined quantity and transported on the product transport conveyor are transferred onto a stock plate, and the products that form a set row on this stock plate are mounted on the lifting frame. A transfer step of transferring to the placing surface, a lowering step of lowering the elevating frame forming the product placing surface to the inner bottom of the storage case on the case conveyor, and the elevating frame to the product placing surface. The inner frame expands inside the outer frame of the elevating frame in the outer frame direction when the elevating frame leaves the storage case after transferring the product or storing the product in the storing case. It is to have a Zhang step.

As a second feature of the invention of the method, an inner frame is provided inside the outer frame which constitutes the elevating frame, and the product is mounted inside the inner frame by rotating the shutter drive chain. This is a rotation track of the shutter drive chain that forms and disappears the mounting surface, and the installation height of this rotation track is lower than the height of the upper part of the product mounted on the product mounting surface. It has a process of forming and disappearing a surface.

Further, as a third feature of the method invention, in the expanding step of expanding the inner frame inside the outer frame, the inner frame is expanded toward the outer frame by retracting the expanded expansion cylinder. It is a step to be performed.

[0010]

The inner frame provided inside the elevating frame that can be vertically moved freely is the highest point of the frame of the stacker device, and is formed by the rotation of the shutter drive chain installed in the inner frame. The mounting surface stops at a point forming the same horizontal surface as the product mounting surface of the stock plate. On the other hand, on the product transport conveyor, an aligned state is formed in which the products packed in the pack tray are arranged in a predetermined quantity in a line, and when the aligned state is completed, the operation of the product transport conveyor is temporarily suspended.

Products arranged in a line in a predetermined quantity on the product transport conveyor are transferred onto the product mounting surface of the stock plate by advancing the pusher cylinder of the transfer device disposed on the side of the product transfer conveyor. Will be posted,
Furthermore, this process is repeated until the set number of rows on the product mounting surface of the stock plate.

When the mounting of the rearmost row on the product mounting surface of the stock plate is completed, all the rows of the product on the product mounting surface of the stock plate and the products having a predetermined quantity as one row on the product conveyor. Is pushed out and transferred by the forward movement of the pusher cylinder onto the product mounting surface generated by the rotation of the shutter drive chain. When the shutter drive chain is transferred to the product mounting surface and the mounting width of the product to be mounted interferes with the rotation trajectory of the shutter drive chain, the expansion cylinder slides to expand the inner frame. Is performed to prevent interference.

Next, as the elevating cylinder extends, the elevating frame on which the product is placed is lowered to the inner bottom of the storage case, and the shutter drive chain rotates to make the product placing surface disappear. The product is stored in the storage case. When this storage is completed, the expansion cylinder of the inner frame slides to expand the inner frame to the inside of the outer frame, and the product can be withdrawn without interfering with the product stored in the storage case.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a box packing method using a stacker device of the present invention will be described below with reference to the drawings. Reference numeral 1 in the drawing is a stacker device, and reference numeral 10 is provided inside the stacker device, and the driving force of the shutter drive motor 9 is shown in FIG.
It is an elevating frame which is transmitted to the shutter drive chain 9a through the sprockets 16a and 16b and the spline shaft 17 and which has a product mounting surface 11a formed by the round rod member 11b of the shutter drive chain 9a. .

Reference numeral 12 is an elevating cylinder for elevating the elevating frame 10 in the vertical direction.
Pushes the product 2 transported on the product transport conveyor 40 from the product transport conveyor 40 onto the product mounting surface 25a of the stock plate 25 shown in FIG. 2, and further onto the product mounting surface 11a of the elevating frame. It is a transfer device that transfers by moving forward.

FIG. 1 is a side view showing a side surface of a stacking device according to an embodiment of the present invention, which is a side view of the stacking device. In FIG. The product mounting surface 10a made of the round rod material 11b installed in the inner frame 10b of the inner frame 10b forms the same horizontal surface as the product mounting surface 25a of the stock plate 25.

Reference numeral 10A in the figure indicates a state in which the elevating frame 10 is lowered to the lowest point, that is, the elevating frame 10 for placing the product 2 on the product placing surface 10a extends the elevating cylinder 12. By this, the product 2 is lowered to the inner bottom of the storage case 3 and the product 2 is stored in the storage case 3.

FIG. 2 is a side view showing the entire transfer device for explaining the transfer device 20 of FIG. 1 from the side. In this figure, the transfer part which is the main part of the transfer device 20 is a pusher. It is composed of a cylinder 20a, a pusher bracket 20b, a pusher rod 20c, and a pusher rail 20d. The pusher cylinder 20a is slidably provided on a track of a pusher cylinder rail 20d installed in parallel with the product mounting surface 25a of the stock plate 25, and a pusher rod 20c is provided on a lower portion of the pusher cylinder 20a on the product transport conveyor 40. It is fixedly mounted via a pusher bracket 20b in a state of contacting the product.

The pusher rod 20 which is the contact surface of the transfer device 20 with the product 2 on the product conveyor 40.
Although the length direction of c is arranged in parallel with the conveyance direction of the product conveyance conveyor 40, a mechanism for adjusting the length of the contact surface according to the set quantity formed by the conveyed product is incorporated. Has been.

The operation of the transfer device will be described with reference to FIG. 2. Reference numeral 020-1 indicates the home position of the pusher cylinder 20a of the transfer device 20, that is, the transfer device 20 starts operating. Alternatively, it indicates the finished position. Reference numeral 020-2 indicates that the pusher cylinder 20a of the transfer device 20 is moved forward, and the products 2 which are conveyed in an aligned state on the product conveyance conveyor 40 with the set quantity as one line are moved to the product placement surface 25a on the stock plate 25. It shows a state of mounting, that is, an intermediate position.

Further, reference numeral 020-3 indicates that the product row of the set quantity of the next product 2 is the front row product row after the home position 020-1 and the intermediate position 020-2 are repeatedly operated. All products 2 to be placed on the stock plate 25 when the product reaches the state of being pushed forward.
And the product transfer conveyor 40 shows the maximum position to move forward to transfer the products on the product mounting surface 11a of the inner frame 10b at once.

FIG. 3 is a side view for explaining the structure of the elevating frame 10, and FIG. 4 is a front view of the stacker device 1 in which the elevating frame 10 is arranged. 3 to 4, the stacker device 1 includes an upper frame body 1a and a lower frame body 1b.
Although it is formed in a gate shape in a front view by the side frame 1c and the guide rails 13, an elevating cylinder 12 is fixed to the upper edge of the upper frame 1a, and is elevated below the elevating cylinder 12 in a suspended state. While the frame 10 is locked, a guide unit 13a provided in the inner frame 10b engages with the guide rail 13 and allows the elevating frame 10 to move up and down as the elevating cylinder 12 slides.

The lifting frame 10 shown in FIGS.
Is an outer frame 10a, an inner frame 10b, a shutter drive motor 9, a shutter drive chain 9a, and a round rod member 1.
1b, an expansion cylinder 21, a spline shaft 17, a slide shaft 22, and a guide unit 13a. The outer shape of the side view is L-shaped, and the left and right outer frames 10a and the inner left and right inner frames 10 are formed.
b is spline shaft 17, slide shaft 22,
The structure is such that the round rod members 11b incorporating the expansion shafts 23 are sandwiched and axially supported.

Then, in FIG. 3, the inner frame 10b
On the inner side of the shutter drive chain 9a, the shutter drive chain 9a moves along its orbit to the shutter drive sprocket 16c and the corner sprocket 1
6e, the front-end corner sprocket 16d, and the corner guide 15 are L-shaped in a side view and are endlessly connected to each other. The formation and disappearance of the product mounting surface 10a of the elevating frame 10 causes the driving force of the shutter drive motor 9 to be changed. It is formed through the spline shaft 17 and the like.

Product mounting surface 11a of the elevating frame 10
5A is a plan view showing a partial cross section of the elevating frame 10 of FIG. 3 taken along the line AA in plan view. In (a), the shutter drive motor 9 arranged close to the outer frame 10a is used as a drive source, and the drive is engaged with the motor side sprocket 16a and the end of the spline shaft 17 which are engaged with the shutter drive motor 9. Side sprocket 16
b is linked by the spline shaft drive chain 9b, and the driving force of the motor is transmitted to the spline shaft 17. Then, this driving force is transmitted to the shutter drive chain 9a inside the inner frame 10b and via the shutter drive sprocket 16c fixed to the outer periphery of the spline shaft 17.

Left and right shutter drive chains 9a between the corner sprocket 16e and the tip sprocket 16d.
A round rod member 11b having an expansion shaft 23 attached thereto is sandwiched between the shutter drive chain 9a and the shutter drive chain 9a, and the product mounting surface 11a is formed and disappears. The forward / backward control of the shutter drive chain 9a is performed by the proximity switch 14 provided on the inner frame 10b to detect the forward / backward process of the shutter drive chain 9a, and the control of the shutter drive motor 9 by a control circuit (not shown). However, in addition, the shutter stopper 24 arranged on the inner frame 10b also forcibly regulates the forward and backward steps of the shutter drive chain 9a.

The elevating frame 10 comprises the left and right outer frames 1
In the configuration in which the left and right inner frames 10b are sandwiched inside 0a, and further, the expansion cylinders 21 are slidable in the respective left and right outer frames 10a inside the left and right inner frames 10b. However, the spline shaft 17 and the slide shaft 22 pivotally support the outer frame 10a and the inner frame 10b so as to respond to the sliding movement of the expansion cylinder 21, and are arranged in a form that enables expansion. .

The expansion mechanism of the expansion cylinder 21 of the spline shaft 17 and the slide shaft 22 will be described below.
2 is the product 2 on the product mounting surface 11a of the inner frame 10b.
After placing and storing this product 2 in the storage case 3,
It is performed when leaving the storage case 3. Therefore, in the case of transfer of the product 2 other than this from the stock plate 25 to the elevating frame 10 or in the case of elevating due to the operation of the elevating cylinder 12 of the elevating frame 12, the expansion cylinder 21
Sliding is not performed.

The spline shaft 17 of FIG. 5 (a)
Indicates that the expansion cylinder 21 is expanded as the expansion cylinder 21 slides, but the expansion cylinder 21 that is the drive source is in a state in which its cylinder portion is expanded, that is, a state in which expansion is not performed. Even if the expansion cylinder 21 fixed to the inner frame 10b operates and the expanded cylinder portion contracts,
Since the drive shaft of the shutter drive chain 9a is a splined shaft, the drive force of the shutter drive motor 9 can be transmitted to the shutter drive chain 9a.

FIG. 5B is a sectional view in which a part of the slide shaft 22 is enlarged in order to explain the expanded portion of the slide shaft 22 in FIG. 4, but in FIG. 5B,
Similar to FIG. 5A, it shows a state in which the expansion cylinder 21 is not operated, that is, a state in which the inner frame 10b is not expanded in the outer frame 10a direction. Similar to the spline shaft 17, the mechanism of the expansion operation of the slide shaft 22 is performed in accordance with the contraction of the expansion cylinder 21.

FIG. 6 is an enlarged view of the portion D of FIG.
It is a partial sectional view explaining the expansion part of the expansion shaft 23 installed in 1b. In FIG. 6, (a)
The product mounting surface 11a is formed by the shutter drive chain 9a provided inside the inner frame 10b,
It shows a state in which the product 2 is placed on the placement surface.

In this figure, the shutter drive chain arranged inside the inner frame 10b is located at a position where the height of the rotation orbit is lower than the height position of the product placed on the product placing surface 11a. Has been done. By setting the position of the shutter drive chain at the height of the rotation track, the product 2 and the inner frame 1 are transferred when the product is transferred to the product mounting surface.
It is possible to prevent the occurrence of interference with 0b.

FIG. 6B shows a state in which the product 2 having a different shape from the product 2 in FIG. 6A is placed on the product placing surface 11a of the inner frame 10b. Round rod material 11b by engaging the product width of different products
2 shows a state in which the expansion shaft 23 installed inside is expanded.

In the present embodiment, the outer appearance of the side surface of the elevating frame 10 is described as the L-shaped inner frame 10b, but the outer appearance depends on conditions such as the outer shape of the product to be placed and the inner shape of the storage case. Of course, the present invention is not limited to this, and it goes without saying that it is possible to freely engage with the actual situation.

[0035]

The boxing method using the stacker device of the present invention thus constructed has the following effects. When storing the product in the storage case by the stacker device, when the product is placed on the product mounting surface of the stacker device or when the product exits after storing the product in the storage case, the expansion cylinder slides and the inner frame is removed. The expansion in the frame direction has the effect of reducing accidents such as product damage. Therefore, there is an effect that the storage processing of the product stored in the storage case is made more efficient.

[Brief description of drawings]

FIG. 1 is a side view showing an overall side surface of a stacking device according to an embodiment of the present invention, which illustrates an embodiment of the method.

FIG. 2 is a side view showing a configuration of a transfer device of the stacker device from a side surface.

FIG. 3 is a side view illustrating a configuration of a lifting frame.

FIG. 4 is a front view of a stacker device equipped with a lifting frame.

5 (a) is a plan view showing a partial cross section taken along line AA of the elevating frame in FIG. 3, and FIG. 5 (b) is an enlarged view of portion F in FIG. 4 to explain an expanded portion of the slide shaft. FIG.

FIG. 6 is a partial cross-sectional view illustrating a magnified portion of FIG. 4 by enlarging an enlarged portion of an expansion shaft that is installed in a round rod member.

[Explanation of symbols]

 1 Stacker device 2 Product 3 Storage case 9 Shutter drive motor 9a Shutter drive chain 9b Spline shaft drive chain 10 Elevating frame 10a Outer frame 10b Inner frame 11a Product mounting surface 11b Round rod material 12 Elevating cylinder 13 Guide rail 13a Guide unit 14 Proximity Switch 15 Corner guide 16a Motor side sprocket 16b Drive side sprocket 16c Shutter drive sprocket 16d Tip sprocket 16e Corner sprockets 17 Spline shaft 18 Shutter stopper 20 Transfer device 20a Pusher cylinder 20b Pusher bracket 20c Pusher rod 20d Pusher cylinder rail 21c Slide shaft 22a Slide bearing 23 Expansion shaft Maximum position DOO 24 intermediate position 020-3 transfer device of the home position 020-2 transfer device shutter stopper 25 stock plates 25a product placement surface 30 case conveyor 40 product transfer conveyor 020-1 transfer device

Claims (3)

[Claims] 1. A box packing device for storing packed products on a product transfer conveyor in a storage case, transferring products on a stock plate aligned in a predetermined quantity and transferred on the stock plate. The transfer process that transfers the products with the set rows formed on the stock plate to the product mounting surface of the lifting frame, and the lifting frame that forms the product mounting surface is lowered to the inner bottom of the storage case on the case conveyor. When the elevating frame exits from the storage case after transferring the product to the product mounting surface of the elevating frame or storing the product in the accommodating case, the inner frame moves inside the outer frame of the elevating frame. A box packing method using a stacker device, comprising: an expansion step of expanding in an outer frame direction. 2. A shutter drive chain in which an inner frame is provided inside an outer frame that constitutes the elevating frame, and a product mounting surface is formed and disappears by rotating the shutter drive chain inside the inner frame. It is a turning track, and has a step of forming and erasing the product placement surface in which the installation height of the rotation track is lower than the height of the upper part of the product placed on the product placement surface. A boxing method using the stacker device according to claim 1. 3. The expanding step of expanding the inner frame inside the outer frame is a step of retracting the expanded expansion cylinder so that the inner frame expands toward the outer frame. The boxing method using the stacker device according to claim 1 or 2.