JPS6330641Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention converts a plurality of inner boxes consisting of a box body and a lid fitted over the opening into an outer cardboard box (hereinafter simply referred to as an outer box). The present invention relates to a box reversing device suitable for boxing.

[Conventional technology]

For example, in the field of manufacturing cigarette filters, when a rod-shaped cigarette filter plug that is cut to a predetermined size and used is shipped from a factory, the plug (hereinafter referred to as a rod-shaped accessory) is filled with an automatic filling machine. The main body of a cardboard inner box is filled with a lid, and a plurality of the inner boxes set in this way are stored in an outer box and transported.

By the way, when dropping the inner boxes one by one into the outer box with the lid positioned upward, not only is the workability poor, but the following problems also arise. That is,
When dropping the inner box, the lid of the inner box gets caught on the edge of the outer box, or gets scraped by the inside surface of the outer box, causing the lid to come off, causing the box itself to fall first, with the lid tilting on top of it. Even if the lid falls off, or even if the lid becomes one with the box body and starts to fall properly, a space equivalent to the thickness of the lid will be formed between the inside surface of the outer box and the outside surface of the box body. , the box itself may fall first.

For this reason, currently, the top and bottom of the inner box are reversed,
In other words, the method used is to drop the inner boxes one by one into the outer box with the lid in the downward position, but this process is also quite troublesome and inefficient.
It also required considerable skill.

The above inconvenience can be solved by stacking multiple inner boxes with the lids facing up, placing the outer box on top of this, and then turning the whole box 180 degrees. be.

As a box reversing device applicable to such reversing work, the one described in Japanese Patent Application Laid-Open No. 135790/1983 is known. In this system, a support plate is provided at one end of an inversion plate that rotates around a horizontal rotation axis, a presser plate is provided above the support plate, and an article for packaging in which a box in an inverted position is fitted is supported by the support plate. Top of box (bottom)
The support plate and the press plate are rotated 180 degrees together around the horizontal axis of rotation while the box is held down by the press plate, and the box is received in the normal upright position by the press plate. .

[Problem that the invention attempts to solve]

However, the above-mentioned packaging reversing device had the following problems.

(1) With the support plate supporting the boxed product in which the box is in an inverted position, and the top of the box being held down by the presser plate (the upper and lower sides are held between the support plate and the presser plate), the support plate Since the packing and reversing work is performed by simultaneously rotating the support plate and the presser plate 180 degrees, it is necessary to accurately synchronize the rotation drive device of the support plate and the rotation drive device of the presser plate, making the device configuration and control system complicated. Become something.

(2) Since the support plate is rotated 180 degrees to perform the packaging reversal operation, the next item for packaging cannot be received until the support plate is rotated 180 degrees and returns to its original position, and the presser plate is rotated 180 degrees. The support plate cannot be rotated until it is reversed once and returned to its original position to be in the clamped state, and the cycle of the packaging reversal operation is slow.

In view of the above-mentioned problems in the prior art, the present invention involves inverting the boxing article and box by approximately 90 degrees using a first receiver corresponding to a conventional support plate, and inverting the packaging product and the box by approximately 90 degrees using a first receiver corresponding to a conventional support plate. Receive it with the second receiver and further invert it approximately 90 degrees, so that the whole can be reversed 180 degrees, and the second receiver receives it from the first receiver.
The delivery to the receiving tool is carried out smoothly without strictly synchronizing the expansion and contraction operations of cylinder devices that rotate both cylinder devices separately, and the article for packaging and the box are delivered to the second receiving tool. In this state, support by the first receiver is not required, and by not restricting the return process of the first receiver by the process of the second receiver, it is possible to speed up the cycle of the packing and reversing work. It is intended to be.

[Means for solving problems]

The technical measures taken by the present invention to achieve the above objectives are as follows. That is, the packaging reversing device according to the present invention is characterized by: a bottom support section that supports the bottom surface of the boxing product; and a side support that is perpendicular to the bottom support section that supports one side of the box placed over the boxing product. and a second receiver comprising a bottom support part that supports a bottom surface of the box and a side support part that is perpendicular to the bottom support part that supports one side of the box. and the first receiver and the second receiver are separately arranged around the same horizontal axis parallel to their side support parts, and the first receiver is approximately 90 degrees and the second receiver is more than 90 degrees. The first receiver is configured to be rotatable over an angle of , and the first receiver is placed in a first posture in which the side support portion of the first receiver stands upright around the horizontal axis and the bottom support portion is located approximately horizontally, and the side surface. A first cylinder device is provided for rotationally driving the support part to be rotated approximately horizontally and a second position in which the bottom support part is upright; A second cylinder that is rotatably driven between a first position in which the side support part is upright and the bottom support part is located approximately horizontally, and a second position in which the side support part is rotated approximately horizontally and the bottom support part is upright. A device is provided, and one end of the second cylinder device and the second receiver are connected to each other so as to be relatively movable within the range of an arc-shaped long hole centered on the horizontal axis formed in the second receiver. , when the second receiver is rotated to the second posture by the second cylinder device, the side support portion of the second receiver is inclined toward the first receiver due to the biasing force due to its own weight, and the bottom support portion of the second receiver is inclined toward the first receiver side. is configured to rotate to a third position located within the movement path of the bottom surface of the box.

[Effect]

According to the above configuration, the bottom surface of the article for packaging is supported by the bottom support portion of the first receiver in the first position, and one side of the box in the inverted position placed over the article from above is supported by the bottom support part of the first receiver in the first position. The first cylinder device is operated in a state along the side support portion of the tool.

When the first receiver begins to rotate around the horizontal axis,
The packaging article and the box placed over it are supported from two directions by the bottom support section and the side support section.

As the first receiver approaches the second attitude, the bottom surface of the box hits the bottom support portion of the second receiver in the third attitude, pushing the second receiver against the biasing force.

Therefore, the box and the boxed article are rotated into a substantially horizontal inverted position while being held between the bottom support part of the second receiver and the bottom support part of the first receiver.

From this state, the second cylinder device operates, and the second receiver begins to rotate from the second attitude to the first attitude. Since the box is supported from two directions by the side support part and the bottom support part of the second receiver, even if the box is separated from the first receiver, it is stably supported by the second receiver.

By rotationally driving the second receiver to the first position, the box and the articles stored therein are turned upside down and placed in the normal upright position, while the second receiver is rotated to the first position.
The receiver returns to its original first position and is ready to receive the next item for packaging.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 1 shows an example of the planar layout of a conveyance facility for conveying medium cardboard boxes A filled with rod-shaped small items (filter plugs for cigarettes) to a packaging reversing device 2 by an automatic filling machine 1. do.

The inner box A is an example of a boxing article according to the present invention, and as shown in FIG. 2, it has a bottom plate _A1 and side plates _A2 to _A5 bent on the four sides around the bottom plate A1, And one of the side plates _A2 is configured to swing open and close around the edge of the bottom plate _A1 , and is an open top box body.
A ₁ and shallow (side plates a ₂ to _{a 5}
(having a width narrower than the top and bottom width of the lid _A2 ). This inner box A is used repeatedly as a pass-through box during transportation, and because the side plate A ₂ can be opened and closed to facilitate the filling of rod-shaped small items by the automatic filling machine 1, it is easily deformed. box body
A ₁ is placed in a shape-retaining tray B made of metal such as aluminum or hard synthetic resin and placed in the automatic filling machine 1.
The container is set in a container and filled with rod-shaped small items (see Fig. 4).

As shown in FIG. 3, the shape-retaining tray B has a bottom plate b ₁ and side plates b ₂ to b ₄ erected on three sides around the bottom plate b 1 to be open from the front and the top. Then, as shown in FIG. 4, the box body A ₁
The top opening faces forward and the side plate can swing freely.
It is accommodated in the shape-retaining tray B with a ₂ positioned upward. b ₅ ... is a reinforcing flange portion, and 14 is a through hole.

The box body A ₁ filled with rod-shaped small items is sent to the box body take-out device 3 while being accommodated in the shape-retaining tray B, and the box body A ₁ that is taken out is checked for filling status, replenishment of rod-shaped small items, Work such as filling the gap with spacers, putting on the lid A ₂ , stamping, etc. was carried out, and the first and second conveyors 4,
5 to a table lifter 6, and the table lifter 6 stacks the inner boxes A into a predetermined number of stages (for example, 5 stages). On the other hand, the shape-retaining tray B is set in the empty tray feeding section of the automatic filling machine 1, with an empty box body _A1 set thereon as appropriate.

The box body take-out device 3 is constructed as follows.

That is, as shown in FIGS. 5 to 7, the box body
At the end of the conveyor 7 that transports the shape-retaining tray B containing A ₁ to the work place C, a pair of guides 8, 8 are tilted backwards at a distance in the conveyor transport direction, that is, toward the upper side. The guides 8, 8 are arranged vertically away from the work place C, and a receiving table 9, which is formed in an L-shape when viewed from the direction of transport by the conveyor 7, is attached to the guides 8, 8 so as to be movable up and down. Shape-retaining tray B in inclined position
It is structured so that it can be inherited with the same attitude.

In addition, in the state of inheriting shape-retaining tray B,
The shape-retaining tray B is held and held by the cylinder 11 and the plate member 12 driven by the cylinder 11.

The pedestal 9 is connected to the movable parts of cylinders 13, 13 provided parallel to the guides 8, 8, and
3 and 13, the pedestal 9 is configured to rise from the first level X for taking over the empty form holding tray B of the conveyor 7 to the second level Y above it . Furthermore, cylinder 1
3, the pedestal 9 may be raised and lowered by a motor and a screw shaft driven by the motor.

The tray receiving plate 9a of the holder 9 and the bottom plate _b1 of the shape-retaining tray B are provided with vertical through holes 14, 14 that substantially coincide with each other, and a pusher inserted into the through holes 14, 14 is provided. Raising members 15, 15
is connected to a screw shaft 17 attached to the pedestal 9 and connected to the mechanism 16 for converting rotational motion into linear motion, and the shape-retaining tray B is raised to the second level Y. A box body push-up mechanism 18 is configured to push up only the inner box body _A1 to the third level Z suitable for the above-mentioned work. Also the box body
In the state where A ₁ has risen to the third level Z, the stopper 19 protruding below the box body A ₁ is
The cylinder 20 is provided so that it can be retracted out of the ascending path of the box body _A1 , and with the stopper 19 protruding, the push-up members 15, 15 and the pedestal 9 are lowered, and a new box body A is placed on the shape-retaining tray B. ₁
In addition to accommodating and removing the shape-retaining tray B, we also checked the filling status of the box body A ₁ on the third level Z, replenished rod-shaped members, and removed other lids.
It is designed to allow work such as covering A ₂ .

In addition, 21 in the figure is a roller conveyor that supports the box main body bottom plate _a1 in an inclined position at the third level Z, and the roller conveyor 21 and the stopper 19 are as follows:
The cylinder 10 is provided so that it can be freely rotated rearward around the horizontal axis, and by rotating the inner box A
is transferred onto the first conveyor 4 with its lid _A2 positioned upward.

A first pusher 22 is provided above the first conveyor 4 to transfer the inner box A on the first conveyor 4 to the second conveyor 5. A second pusher 23 for feeding the inner box A to the table lifter 6 is also provided above the terminal end of the second conveyor 5, and the pusher member 24 of the second pusher 23 is in a hanging position and swings forward in the pushing direction. The pusher member 24 can swing freely between these positions, and the inner box A can swing the pusher member 24 and pass underneath it.

The table lifter 6 is composed of a pedestal 26 that can be raised and lowered along a guide 25, and a cylinder 27 that raises and lowers the pedestal 26. Each time an inner box A is pushed and fed, the table lifter 6 sequentially lowers by a predetermined dimension and lifts a predetermined number of ( After that, the stacked inner boxes A... group are sent to the third conveyor 29 by a pusher (not shown), and then the receiving table 26 is placed in a predetermined position. It is designed to return to the box receiving position.

The third conveyor 29 has a curved portion 29a in the middle of its route, and a straight route 29 on the downstream side thereof.
A stock conveyor 30 is provided above b.

The straight path 2 in the third conveyor 29
A lifter device 31 is installed at the terminal end of 9b to lift and supply the stacked boxes A conveyed by the third conveyor 29 to the stock conveyor 30 as necessary.

The lifter device 31 is mainly composed of a conveyor 33 that is driven in forward and reverse directions and can be moved up and down along a guide 32, and a motor 34 that operates the conveyor 33 up and down. When the box filling reversing device 2 has sufficient work capacity to feed the boxes A, and there is a slight delay in the supply of the middle boxes from the third conveyor 29, the middle boxes on the stock conveyor 30 are transferred to the boxes. It is configured so as to be sent to the packing and reversing device 2.

The stock conveyor 30 is configured to be capable of forward and reverse transport so that it can receive and send out the boxes A in stock.

The box packing reversing device 2 is a device for packing the stacked inner boxes A with the lids _A2 at the top into bottomed outer boxes D made of cardboard. The outer box D is an example of a box according to the present invention, and includes a bottom plate _d1 , side plates _d2 to _d5 bent on the four sides around it, and the side plates.
It has lid plates d ₆ to _{d 9} that can be opened and closed and are bent at the opening side edges of d ₂ to d ₅ .

The configuration of the packaging reversing device 2 is as follows.

That is, as shown in FIGS. 10 and 11, the stacked inner boxes A sent from the conveyor 3
...The bottom support part 35 that receives the lowest one in the group, and the stacked middle boxes A...The bottom support part 35 that abuts and supports one side _d2 of the outer box D, which is placed over the group from above and is in an inverted position. A first receiving member 37 having a side support portion 36 perpendicular to the frame 2a is provided rotatably around an inner horizontal shaft 38 of a double shaft horizontally suspended on the frame 2a, and one end thereof is attached to the first receiving member 37. The first cylinder device 39, whose other end is pivotally connected to the frame 2a, is connected to an arm 37a fixed to the tool 37.
The receiver 37 is placed in a first position in which the side support part 36 stands upright and the bottom support part 35 is located approximately horizontally, and in a second position in which the side support part 36 is rotated approximately horizontally and the bottom support part 35 stands upright. It is configured to be rotationally driven over a period of time. Also, a bottom support part 40 that supports the bottom plate d ₁ of the outer box D rotated by the first receiver 37 and a side support part perpendicular to the bottom support part 40 that supports the one side plate d ₂ 41 is provided rotatably around the outer horizontal axis 43 of the double shaft. The first receiver 37 and the second receiver 42 are arranged separately around the horizontal axes 38 and 43 of the double shaft, and the first receiver 37 is at an angle of approximately 90 degrees, and the second receiver 42 is at an angle of approximately 90 degrees (in the drawings). Above is approx.
It is 120 degrees. ) can be rotated freely. 44
is a second cylinder device that rotationally drives the second receiver 42. One end of the second cylinder device 44 and the second
The receiving tool 42 is formed by an arc-shaped long hole 42a centered on the double shaft formed in the second receiving tool 42 and a shaft 45 slidably inserted into the hole within the range of the long hole 42a. The second
The other end of the cylinder device 44 is pivotally attached to the frame 2a. Then, by the expansion and contraction operation of the second cylinder device 44, the second receiver 42 is moved from the first posture in which the side support portion 41 is upright and the bottom support portion 40 is approximately horizontal to the first posture in which the side support portion 41 is approximately horizontal. The second receiver 4 is configured to be rotated between a second position in which the bottom support part 40 is upright, and a second position in which the bottom support part 40 is upright.
2 is rotated to the second posture, the side support portion 41 of the second receiver 42 is inclined toward the first receiver 37 due to the biasing force due to its own weight, and the bottom support portion 40 is tilted toward the bottom surface of the outer box. The robot is configured to rotate to a third attitude located within the movement path of. 46 is a conveyor for carrying out. As shown in the figure, the bottom support part 35 of the first receiver 37 is made smaller than the bottom of the inner box A, and a gap is formed between the bottom support part 35 and the side support part 36, so that the outer box D cover plate
It is configured so that there is no need to turn back d ₆ to _{d 9} .

Next, the operation of the packaging reversing device 2 will be explained.

As shown in FIG. 12A, when the first receiver 37 is in the first attitude, the stacked middle boxes A...group are carried by the conveyor 33 onto the bottom support part 35 of the first receiver 37. sent.

Next, as shown in FIG. 12B, the outer box D, which has been turned upside down, is manually placed over the group of inner boxes A. In this case, the inner side of outer box D and the lid of each inner box A
There is almost no dimensional separation between A ₂ and the outer box D.
Even if the inner surface is in strong sliding contact with the outer surface of the lid A ₂ , the force generated by frictional resistance will act in the direction of deepening the fit between the lid A ₂ and the box body A ₁ , and there is a risk that the lid A ₂ will come off. There is no such thing. Incidentally, among the cover plates d ₆ to _{d 9} , the cover plate d ₆ located on the side support portion 36 side may be folded back as shown in the figure.

In this state, the first receiver 37 is rotated to the second position, but when the first receiver 37 has rotated by a predetermined angle, the outer box D
The bottom plate d ₁ of is in contact with the bottom support portion 40 of the second receiver 42 in the third attitude. Therefore, the second receiver 42
is pushed by the outer box D from the third attitude to the second attitude against the urging force due to its own weight. In other words, the inner box A group and the outer box D are the bottom support part 35 of the first receiver 37 and the bottom support part 4 of the second receiver 42.
0, and is supported by the side support parts 36, 41 of the first receiver 37 and the second receiver 42, and is turned into a substantially horizontal lying position.

In this state, the second cylinder device 44 operates,
As shown in FIG. 12D, the second receiver 42 is connected to the first
The outer box D containing the inner boxes A is placed on the carry-out conveyor 46 in the normal upright position. In this case, the inversion angle (rotation angle) of the first receiver 37 is approximately 90 degrees, and the second receiver 42 is provided with a side support portion 41, and the second receiver 42 is provided with a side support portion 41.
While the receiver 42 rotates the side support portion 41 from the second position where it is approximately horizontal to the first position, the outer box D
Since one side is supported by the side support part 41, from the time when the outer box D is delivered to the second receiver 42, support by the first receiver 37 is unnecessary, and the second receiver 42 By the process of the first receiver 3
7 is not restricted.

Therefore, depending on the setting of the timing of the expansion and contraction operations of the first cylinder device 39 and the second cylinder device 44, for example, while the outer box D is being carried out from the second receiver 41 on the carrying out conveyor 46, the first cylinder unit The first cylinder device 39 may be operated to return the first receiver 37 to the original first position, or even before the second receiver 41 returns to the first position. It is possible. By doing so, the cycle of reversing work can be accelerated.

When the outer box D is carried out from the second receiver 41, the second
The cylinder device 44 operates to return the second receiver 41 to the second attitude, and the second receiver 41 returned to the second attitude returns to the third attitude due to the urging force due to its own weight. The first receiver 37 is the second receiver 41, and the second receiver 41 is the third receiver.
Before it returns to its original position, it returns to its original position and prepares for feeding the next middle box A...

[Effect of idea]

Since the present invention has the above-described configuration, it can achieve the following effects.

The first receiver and the second receiver are each provided with a bottom support part and a side support part, the first receiver is provided with a first cylinder device, and the second receiver is provided with a second cylinder device. The second cylinder device and the second receiver are configured to be rotated approximately 90 degrees each. The second receiver is connected to be relatively movable within the range of the long hole, and when the second receiver is rotationally driven to the second attitude by the second cylinder device, the second receiver is moved to the third attitude by the urging force due to its own weight. Since it is configured to rotate, when the first cylinder device is actuated with the bottom surface support portion of the first receiver supporting the bottom surface of the article to be packed in a box and the box being placed over the article from above, the first cylinder device is rotated. As the receiver approaches the second attitude, the bottom surface of the box hits the bottom support part of the second receiver in the third attitude, pushing the second receiver against the biasing force and moving the second cylinder device. Even if it is not operated, the box and the boxed article are rotated to a substantially horizontal inverted posture while being held between the bottom support part of the second receiver and the bottom support part of the first receiver.

Therefore, there is no need to strictly synchronize the expansion and contraction operations of the first cylinder device and the second cylinder device,
It is possible to simplify the device configuration and control system.

The reversal angle (angle of rotation) of the first receiver and the reversal angle of the second receiver due to the driving force of the second cylinder device are approximately 90 degrees, respectively, and the first receiver and the second receiver have side surfaces. supports are provided, and while the second receiver is rotated from a second position with its side supports substantially horizontal to the first position, the box is mounted on the side supports and bottom supports of the second receiver. Since it is supported from two directions by the holder, even if it is separated from the first holder, it is supported in a stable state by the second holder.

Therefore, from the time the box is transferred to the second receiver, support by the first receiver is not necessary.
The return process of the first receiver is not restricted by the process of the second receiver.

Therefore, by setting the timing of the expansion and contraction operations of the first cylinder device and the second cylinder device, for example, while carrying out the box in the normal standing posture from the second receiving device, the first receiving device can be moved back to the original first receiving device. It is also possible to return the first receiver to the posture, or even operate the first cylinder device to return the first receiver before the second receiver returns to the first posture.
It is possible to speed up the cycle of packing and reversing work and improve work efficiency.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a schematic plan view of a transport facility for transporting the inner box to the box reversing device, and Fig. 2 is a perspective view of the inner box with the lid removed. Figure 3 is a perspective view of the shape-retaining tray, Figure 4 is a perspective view of the filled box body and the shape-retaining tray containing it, Figure 5 is a front view of the box unloading device, and Figure 6 is a side view of the same. , FIG. 7 is a front view of the same essential parts, FIG. 8 is a side view of the first conveyor section, FIG. 9 is a side view of the lifter device, and FIG. 10 is a side view of the box reversing device.
FIG. 11 is a plan view of the same, and FIGS. 12A, B, C, and D are explanatory views of the operation of the packaging reversing device. 35, 40... Bottom support part, 36, 41... Side support part, 37... First receiver, 39... First cylinder device, 42... Second receiver, 42a... Elongated hole, 44... ...Second cylinder device.

Claims (1)

[Scope of utility model registration request] a first receiver comprising a bottom support part that supports a bottom surface of an article for packaging; and a side support part perpendicular to the bottom support part that supports one side of a box placed over the article for packaging; and the box. a second receiver having a bottom support portion supporting a bottom surface of the box and a side support portion perpendicular to the bottom support portion supporting one side of the box; The tools are separately configured to be rotatable around the same horizontal axis parallel to their side support portions, and the first receiver is rotatable through approximately 90 degrees, and the second receiver is rotatable over an angle greater than that. A first position in which the side support part of the first support part stands upright around the horizontal axis and the bottom support part is located approximately horizontally, and a first position in which the side support part is rotated approximately horizontally and the bottom support part is provided with a first cylinder device that rotates and drives the second receiver in a second position in which the second receiver is in an upright position, and the second receiver is configured such that the side support part of the second receiver is upright and the bottom support part is approximately horizontal. A second cylinder device is provided which is rotatably driven between a first posture in which the side support portion is rotated approximately horizontally and a bottom support portion is upright; The second receiver is connected so as to be relatively movable within the range of an arc-shaped elongated hole centered on the horizontal axis formed in the second receiver, and the second receiver is connected to the second receiver using a second cylinder device. When the second receiver is rotated to the posture, the side support portion thereof is inclined toward the first receiver due to the biasing force of the second receiver, and the bottom support portion is located within the moving path of the bottom surface of the box. A box reversing device characterized by being configured to rotate up to three positions.