JPH052408Y2 - - Google Patents

Description

[Detailed description of the invention] This invention receives products that are continuously supplied at regular intervals from a main packaging machine (front row packaging machine) that operates continuously, and when a predetermined number of products are received, a secondary packaging machine that stops and stands by. (back row packaging machine) starts operation, the secondary packaging machine collects and packages the products in wrapping paper or boxes of a specified size, and after completing one cycle of operation of the secondary packaging, the secondary packaging machine stops and waits at a fixed position. This invention relates to a product delivery and conveyance device for an operation-controlled stacking and packaging machine.

Conventionally, the product delivery and conveyance devices for this type of stop-and-standby operation control type stacking packaging machine are shown in Figs. 7, 8, and 9.
Examples include the one shown in the figure.

In this prior art, products 3 in two stages and one row are fed from the main packaging machine 1 to the product conveyance path 5 on the conveyance path board 2 at regular intervals by the protruding action of the protruding pusher 4 of the main packaging machine 1. , this is repeated, and the products 3 are fed into the product conveyance path 5 in a pushing state, and the products 3 in the front row come into contact with the stopper 6, which is detected by the complete feed detection sensor 7, and this detection signal is sent to the product 3. Lifting/lowering rotating plate 8
rises and lifts the products 3 in n rows, in this case 5 rows, as shown in FIG.
After the protruding feed, the feeding pusher 9 retreats, and at the same time, the elevating rotating plate 8 rotates 90 degrees horizontally as shown in Fig. 7, then descends and rotates back 90 degrees horizontally at the lowering limit. However, it is configured to stop at the original position below the transport path plate 2.

Then, in the feeding path 11, two stages and five rows of products 3
are packaged together.

Here, in the case of a product delivery and conveyance device of a stop-standby operation control type stacking packaging machine such as the related art,
From the time when the product 3 in the front row comes into contact with the stopper 6 and the complete feed detection sensor 7 detects the product 3 in the front row,
The time tA ₁ (or rotation angle A ₁ ○) during which the elevating rotating plate 8 starts to rise and the lower surface of the elevating rotating plate 8 rises to a height that does not interfere with the entry of the product 3, and the feeding by the protruding pusher 4 from the time of detection. Product 3 in the next (6th row)
Time to force feed tA ₂ (or rotation angle A ₂ ○)
The relationship with tA ₂ > tA ₁ ... must be established.

This is a restriction that is required not only in the prior art but also in the pushing conveyance structure.

If this constraint is not satisfied, when the product 3 is lifted by the lifting/lowering rotating plate 8, the products 3 in the 6th row (in the case of n-row packaging, the n+1st row) will collide with the lifting/lowering rotating plate 8, and the movement will not be smooth. It is from.

In addition, if we try to enable continuous operation in order to cope with higher speeds, it becomes difficult to determine whether the product 3 in the 5th row (in the case of n-row integrated packaging, the n-th row) comes to the sub-packaging machine 10 or not. It is necessary to judge whether continuous operation is possible, such as whether or not the sub-packaging machine 10 is within the mechanically required continuous operation range, and whether it is within the mechanically required fixed-position stop range of the sub-packaging machine 10. Therefore, in order to achieve even higher speed and accuracy in decision-making, it is necessary to be able to make decisions early and with plenty of time. That is, an important problem to be solved is to configure the system so that detection and judgment are made at the earliest timing that allows for smoothest continuous operation.

However, in the case of the push-feeding structure as in the prior art, each product 3 is pushed and fed in a state of contact, so the protruding operation of the protruding pusher 4 must be controlled. No. That is, the prior art is configured to determine whether continuous operation is possible after confirming the completion of feeding of the products 3 from the main packaging machine 1, and if the protruding pusher 4 operates too quickly, the above-mentioned restriction Since tA ₂ >tA ₁ was not satisfied, continuous operation was impossible, and therefore the protruding pusher 4 could not be operated faster, and there was a limit to how high the speed could be increased. Moreover, the determination of whether or not the product is acceptable tends to be inaccurate, and there is also a risk of misidentification.

Furthermore, in the case of the pushing conveyance structure, the pushing-off position of the product 3 tends to be inaccurate, and when conveying several stacks such as two-tier stacking, troubles such as stack collapse are likely to occur, which is a structural disadvantage. There is also.

Therefore, the present invention aims to eliminate these inconveniences and provide a product delivery and conveyance device for a stop-and-standby operation control type stacking and packaging machine that achieves the ideal continuous operation that solves the above-mentioned problems. , its feature is that a conveyor plate 2 is installed in parallel on the front side of a main packaging machine 1 equipped with a protruding pusher 4 for sending out products 3, and the protruding pushers 4 sequentially feed the products 3 at predetermined intervals. Many products 3
A product conveyance path 5 is provided in which endless belts 12 are arranged opposite to each other to sandwich and transfer the left and right sides of the product, and a stopper 6 for stopping the transfer of the product 3 is provided at the end of the product conveyance path 5.
The lifting and lowering rotating plate 8 repeats the operation of lifting the first to nth product groups that have been aligned and stopped by the stopper 6, rotating and lowering, and then rotating again and returning to the original position. The transport plate 2 is provided with an opening 2' that allows the lifting and lowering rotating plate 8 to move up and down, and the above-mentioned product group that is placed in parallel on the lifting and lowering rotating plate 8 is placed in the lifting stop position of the lifting and lowering rotating plate 8. Feed path 1 that supplies to the process
1 and a feeding pusher 9, and n detectors each confirming that the 1st to nth products 3 are carried above the vertically rotating plate 8 from the terminal end of the product conveyance path 5 toward the starting end. 14 are arranged in parallel, and the installation intervals of the first to n-1th detectors 14 are set at approximately constant intervals of the product width, and the setting position of the nth detector 14n is set to the n-1th detector 14n. Product 3 _o-
The n-th detector 14 is set at a distance L from the terminal end of the product 3 _o-1 at the position where the product 1 has arrived at the conveyance start end, and confirms the passage of the n-th product 3n _.
The output signal output from n is the vertical rotation plate 8.
The distance L is determined from the time when the output signal is output by the n-th detector 14n due to the passage of the n-th product 3n, and when the lifting turning plate 8 By the time the upper surface of the vertically rotating plate 8 reaches the lower surface of the product 3 after starting to rise and the lifting starts, the n-th product 3n conveyed by the endless belt 12 at a predetermined feed rate has reached the n-1-th product 3. _o-1 , and move the product 3 to the product transport path 5 at an appropriate position from the end of the product 3n at the position where the n-th product 3n has arrived at the transport start end. A stopper device 16 is provided to prevent conveyance, and when the nth product 3n passes through the stopper device position, the conveyance of the product 3 is prevented, and even if the product 3 that has been blocked by the stopper device 16 is conveyed, it will not rise. This is a product delivery and conveyance device for a stop/standby operation controlled type stacking and packaging machine, characterized in that it is equipped with a stopper control device that releases the blocking when it no longer collides with the lifting/lowering rotating plate 8.

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in FIGS. 1, 2, 3, 4, 5, and 6 of the accompanying drawings.

Note that the same reference numerals as in the conventional example are given the same reference numerals.

This embodiment is a stacking and packaging machine for stacking and packaging products 3 in two stages and five rows, similar to the conventional example.

Moreover, except for the delivery and conveyance part, it operates and has the same structure as the conventional example.

The endless belt 12 of this embodiment has a symmetrical front roller 13a, a rear roller 13b, and a left detour roller 1.
3c, right detour roller 13d, center detour roller 13
e, product conveyance path 5 by reversing rollers 13f and 13g
The belt width is approximately the same as the height of the two products.

Due to the existence of this endless belt 12, when feeding the product 3 from the main packaging machine 1 to this embodiment, it is sufficient to feed the product 3 to the position of the endless belt 12 using the protruding pusher 4. It is possible to shorten the stroke of the protruding pusher 4 compared to the conventional example in which the pusher is pushed all the way to the end, and therefore, it is possible to provide a device that can cope with higher speeds.

In addition, five detectors 14a, 14b, 14c,
In this case, 14d, 14e, and 14n serve as photo sensors, and are each mounted at a fixed position where the arrival state of the delivery can be confirmed. The detectors 14e and 14n on the farthest conveyance start end side are installed at positions where they output detection signals (output signals) earlier than the nth product 3n reaches the conveyance arrival position. i.e. product 3
Product 3 _o-1 is installed at a distance L away from the end of the product 3 _o-1 toward the start end of the conveyance.

In this embodiment, each product detection sensor 14a...1
The distance L is set by setting the mounting pitch of 4n to be slightly wider than the width of the product 3 in the conveyance direction.

That is, this distance L is determined by the time when the fifth detector 14 outputs an output signal due to the passage of the fifth product 3, when the vertically rotating plate 8 starts to rise and the upper surface of the vertically rotating plate 8 reaches the product. The distance is set such that the fifth product 3, conveyed by the endless belt 12 at a predetermined feed speed, reaches the end of the fourth product 3 by the time the fifth product 3 reaches the lower surface of the fourth product 3 and starts lifting.

In order to make such a setting possible, the endless belt 12 has an independent drive source 15 that can be tuned.

As described above, up to the fourth product is confirmed at a fixed position within the endless belt 12, and the fifth product 3 is outputted a detection signal earlier than the fixed position, and the fifth product from the main packaging machine 1 is The feeding state of the product 3 can be determined early and accurately within the sub-packaging machine 10, and the continuous operation of the sub-packaging machine 10 can be easily performed even at higher speeds.

In this embodiment, the product is conveyed horizontally, but it can also be conveyed vertically.

The stopper device 16 of this embodiment is disposed between the left detour roller 13c and the right detour roller 13d so as to be able to move forward and backward.

FIG. 4 is a plan view of the stopper device 16 portion;
FIG. 5 is a cross-sectional view thereof.

Its structure is such that a support base 17 is attached below the conveyance path plate 2, and slide bases 18 are disposed on both left and right sides of the support base 17 by flanged rollers 19 so as to be movable forward and backward in a direction perpendicular to the product conveyance direction. A rotary shaft 21 is vertically installed below the support base 17 by a support bracket 20, a rotary disk 22 is fixed to the upper part of the rotary shaft 21, and a predetermined radius position on both left and right sides of the rotary disk 22 and the left and right slide bases are fixed. 18 are pivotally connected by a connecting ring 23, and this actuating ring 2
An operating rod 25 that moves forward and backward by a cam or the like of the packaging machine 10 is connected to the distal end of the packaging machine 10, and a mounting plate 26 is provided upright on each of the slide bases 18. A stopper plate 16' is attached.

Therefore, as the actuating rod 25 moves forward and backward, the product stopper plates 16' move forward and backward relative to each other, stopping the product 3 when moving forward and stopping the product 3 when moving backward.
transportation is permitted.

Incidentally, when stopping, the endless belt 12 of the product 3 is slipped.

Further, when the width of the product 3 in the conveying direction changes due to a change in the size of the product 3, the spacer 27
The thickness of the product stopper plate 16' is changed and the product stopper plate 16' is installed at an appropriate position.

In addition, the endless belt 12 includes a left detour roller 13c,
The product stopper plate 16' is bypassed by the right detour roller 13d and the center detour roller 13e.
This is to enable the belts to be placed on both sides of the product conveyance path 5 where the endless belt 12 is placed.

The reason why the product is taken out from both sides of the conveyance path is to prevent the product from becoming misaligned when the stopper is released.

Moreover, the reason for this hanging arrangement is that the endless belt 12 can be constructed of two sets of belts, front and rear, with the product stopper plate 16' as a boundary, but the stopper position changes depending on the size of the product 3. When the length of the belt changes, it is necessary to convert the belt, so consideration should be given to eliminating the belt conversion.

That is, the left detour roller 13c and the right detour roller 13
Even if the belt d is moved to follow the product stopper plate 16', there is no need to change the belt at all.

Furthermore, the operation of the product stopper plate 16' is as follows:
When the fifth product 3 passes the product stopper plate 16' position, the product stopper plate 16' is taken out, the sixth product 3 is slipped, and the lifting/lowering rotation plate 8
The product stopper plate 16' can be retracted at a time when lifting operation of the product is not hindered.

Therefore, even if the feeding speed of the endless belt 12 is increased or the conveyance interval of the products 3 is shortened, it is possible to convey the products 3 without interfering with the lifting of the 5 products 3, including the 6th product 3, thereby increasing the speed. It will be possible to respond to

Incidentally, the structure for moving the product stopper plate 16' back and forth and the structure for changing the position of the product stopper plate 16' are not limited to this embodiment.

Since the present invention is configured as described above, the endless belt 12 can perform a stable conveying action without causing step collapse, and the endless belt 12 that clamps the product 3 is used, which eliminates the push-and-pull operation required by the prior art. Since it is not a multi-conveyance type, the relative position between the product 3 and the endless belt 12 does not change, and therefore, the feeding speed of the endless belt 12 and the setting position of the n-th detector 14n can be appropriately selected as in the above embodiment. Therefore, it becomes possible to reliably obtain a good timing for raising the vertically rotating plate 8. Moreover, by shortening the stroke of the protruding pusher 4, it is possible to increase the speed of product feeding.

Also. Detectors 14a, 14b, 14c, 14
d. In particular, since the n-th detection can be performed early by the detector 14n closest to the main packaging machine 1, the delay of the secondary packaging machine 10 due to clutch slippage in the first cycle from the standby state is reduced. This can be resolved by issuing an operation start signal to the main packaging machine 1 early, and since the stopper device 16 and the stopper control device are provided, the relationship of tA ₂ > tA ₁ of the above condition can be maintained for the main packaging machine 1. It is also possible to satisfy the requirements without increasing the speed of the secondary packaging machine 10.
Moreover, even if the feeding speed of the endless belt 12 is increased or the conveyance interval of the products 3 is shortened, n+1
It becomes possible to transport the n-th product group, in which the th product 3o ₊₁ is lifted, without interfering with the lifting, and it is possible to cope with higher speeds.

Furthermore, since it is possible to determine whether or not continuous operation is possible earlier, it is easier to determine continuous operation even at higher speeds, and the continuous operation is stabilized, thereby facilitating continuous operation control.

Furthermore, since the product 3 is conveyed while being sandwiched, the push-off position is also accurate.

As described above, the intended purpose can be fully achieved.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a plan view of the main part, FIG. 2 is a vertical cross-sectional view in the left and right direction, and FIG.
The figure is a longitudinal sectional view in the longitudinal direction, Fig. 4 is a plan view of the stopper device, Fig. 5 is a cross-sectional view thereof, Fig. 6 is a longitudinal sectional view in the left-right direction of the main part, and Fig. 7 is a plan view of the conventional example. , FIG. 8 is a longitudinal cross-sectional view in the left-right direction of the conventional example, and FIG. 9 is a longitudinal cross-sectional view in the front-rear direction of the conventional example. 1... Main packaging machine, 2... Conveyance plate, 2'... Opening, 3... Product, 4... Projecting pusher, 5... Product conveyance path, 6... Stopper, 8... Elevating/lowering rotating plate, 9... Feeding pusher, 11... Feeding route, 12
... Endless belt, 14 ... Detector, 16 ... Stopper device.

Claims (1)

[Scope of utility model registration request] A conveyor plate 2 is installed in parallel on the front side of the main packaging machine 1 equipped with a protruding pusher 4 for sending out products 3.
A product conveyance path 5 is provided in which an endless belt 12 is installed opposite to the endless belt 12, which grips and transfers the left and right sides of a large number of products 3 that are sequentially sent out at predetermined intervals by a protruding pusher 4. A stopper 6 is provided for stopping the transfer of products 3, and an elevating/lowering rotating plate 8 is provided which repeats the operation of lifting the first to nth product groups that have been aligned and stopped by the stopper 6, swiveling down, swiveling again, and returning to the original position. It is provided below the terminal end side of the product conveyance path 5 so that it can be raised and lowered, and the transport plate 2 is provided with an opening 2' that allows the raising and lowering turning plate 8 to move up and down. A feeding path 11 and a feeding pusher 9 are provided to supply the above-mentioned product group placed in parallel to the next process, and the products 3 are sequentially fed from the 1st to the nth products 3 from the terminal end of the product transport path 5 toward the starting end. , n number of detectors 14 are installed in parallel, each of which confirms that the lifting/lowering rotation plate 8 is carried upward, and the installation interval of each of the first to (n-1)th detectors 14 is set to a constant interval approximately equal to the width of the product. In addition, the setting position of the n-th detector 14n is set to a position that is a distance L away from the end of the product 3 _o-1 at the position where the n-1th product 3 _o-1 has arrived at the conveyance start end side. The configuration is such that the output signal output from the n-th detector 14n, which confirms the passage of the n-th product 3n, becomes a starting signal for starting the lifting operation of the vertically rotating plate 8, and the distance L
When the n-th detector 14n outputs an output signal due to the passage of the n-th product 3n, the vertically rotating plate 8 starts to rise, and the top surface of the vertically rotating plate 8 reaches the bottom surface of the product 3. , the endless belt 12 at a predetermined feed speed until the lifting starts.
Set to a distance at which the nth product 3n conveyed by reaches the terminal end of the n-1th product 3o _-1 ,
Product 3n at the position where the nth product 3n has arrived
A stopper device 16 for blocking the conveyance of the product 3 is provided in the product conveyance path 5 at an appropriate position from the terminal end to the conveyance start end side, and when the nth product 3n passes the stopper device position, the stopper device 16 of the product 3 is Even if the product 3 that has been blocked by the stopper device 16 is transported, the elevating and lowering rotating plate 8 on the way up
1. A product delivery and conveyance device for a stop-and-standby operation control type stacking packaging machine, characterized in that a stopper control device is provided for releasing the blocking when there is no longer a collision with the product.