JP2858854B2 - Article arrangement changing mechanism and box packing apparatus using the same - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an article arrangement changing mechanism for changing articles arranged in a fixed arrangement state to a predetermined arrangement, and a box packing apparatus using the mechanism.

2. Description of the Related Art Conventionally, as an apparatus for automatically packing articles such as fruits and vegetables in a container such as a cardboard box, Japanese Patent Application Laid-Open No. Sho 61-203317 proposed and published by the present applicant has been proposed. It is known.

The automatic packaging device for fruits and vegetables described in this publication,
Fruits and vegetables that stand by in a fixed arrangement on the rowing device are picked up by a plurality of fruit picking heads (holders) having a slider (guide unit) and a vacuum suction plate (holding unit) and configured to be movable back and forth and left and right. The picked fruits and vegetables are arranged in a predetermined arrangement by moving the head back and forth and right and left, and then packed in a boxed container waiting at the fruit boxing section.

[Problems to be Solved by the Invention] However, the above-described conventional arrangement changing mechanism using a plurality of fruit pick-up heads that can move back and forth and left and right uses an actuator for moving the plurality of fruit pick-up heads back and forth and right and left, respectively. Since a large number of control devices are required in accordance with the number of fruit pick-up heads, not only the mechanism is complicated, but also causes an increase in cost and weight, and improvement has been desired.

The problem to be solved by the present invention is to provide an article arrangement changing mechanism which can change an article in a fixed arrangement state to a predetermined arrangement by a very simple, low-cost, and lightweight mechanism. An object of the present invention is to provide a box packing device using a mechanism.

[Means for Solving the Problems] In order to solve the above-mentioned problems, one of the article arrangement changing mechanisms of the present invention is to transfer articles in a fixed arrangement state to each holder having a holding portion and a guide portion. An article arrangement changing mechanism for holding one piece at a holding section and moving each of the guide sections to a predetermined position to change the held article to a predetermined arrangement, comprising: a base; A plurality of link arms, each of which is provided so as to correspond to each of the holders, and a link arm having the holder provided on the other side which is rotatable around the axis, one side of which is mounted on the base, and a cam having a predetermined shape. A guide portion of each holder is slidably fitted in each of the cam grooves, and is rotatable by a predetermined angle about a support shaft provided on the base, and is rotated by the predetermined angle. Each guide part when A pattern cam that rotates each of the link arms while sliding along each cam groove to move each of the guide portions to the predetermined position, and operates the pattern cam to rotate the pattern cam by the predetermined angle. And an actuating actuator.

Also, another one of the article arrangement changing mechanism of the present invention is:
An article in a fixed arrangement state is held by the holding section of each holder having a holding section and a guide section, and each of the guide sections is moved to a predetermined position, whereby the held article is held. A plurality of guide mechanisms having a predetermined shape, and a base in which the sliding portions of the holders are slidably fitted in the respective guide grooves. And a plurality of cam grooves having a predetermined shape, and guide portions of the holders are respectively slidably fitted in the cam grooves, and are rotatable by a predetermined angle about a support shaft provided on the base. And, when rotating by the predetermined angle, each of the guides is slid along each of the guide grooves while each of the guides is slid along each of the cam grooves, so that each of the guides is moved in advance by the respective guide. Move to the specified position And Nkamu is the operation to the pattern cam which is characterized in that it consists of a actuator to the predetermined angle rotation.

Further, the box packing device of the present invention has a storage means for waiting for articles to be packed in a predetermined arrangement, and an arrangement changing mechanism for the articles, and the articles arranged on the storage means by the arrangement changing mechanism are arranged on standby. After holding and picking up a predetermined number, the actuator of the array changing mechanism is actuated to form a predetermined array, and pick-up boxing means for boxing the articles in the predetermined array in a box container waiting at a predetermined position. It is characterized by the following.

In the boxing device of the present invention, the article is preferably a fruit or a fruit or a fruit or fruit placed on a saucer.

[Operation] According to the article arrangement changing mechanism according to claim 1 of the present invention configured as described above, articles in a fixed arrangement state are held by the holders each having the holding section and the guide section. When one of them is held by the unit, the actuator is actuated, and the pattern cam is rotated by a predetermined angle about a support shaft provided on the base. When the pattern cam rotates by a predetermined angle, each of the guide portions slides along each cam groove of the pattern cam, and the other side of each link arm having one side pivotally mounted on the base rotates around the axis. Then, the respective guide portions move to predetermined positions. In this manner, the held articles can be changed to a predetermined arrangement by moving the respective guide portions to predetermined positions.

Further, according to the article arrangement changing mechanism according to the second aspect of the present invention, when an article in a fixed arrangement state is held by the holding section of each holder having the holding section and the guide section, one piece is held. The actuator is actuated to rotate the pattern cam by a predetermined angle about a support shaft provided on the base. When the pattern cam rotates by a predetermined degree, each guide portion slides along each cam groove of the pattern cam, and each sliding portion slides along each guide groove of the base. Move to respective predetermined positions. In this manner, the held articles can be changed to a predetermined arrangement by moving the respective guide portions to predetermined positions.

Further, according to the box packing device of the present invention using the arrangement changing mechanism, after a predetermined number of articles waiting in a fixed arrangement state on the storage means are picked up by the pick-up boxing means having the arrangement changing mechanism, the articles are removed. By actuating the actuator of the arrangement changing mechanism to the predetermined arrangement, the articles can be packed in the predetermined arrangement in the boxed container which stands by at the predetermined position.

EXAMPLES Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings (FIGS.
This will be described based on FIG. 10). 5 to 7 show an embodiment corresponding to the article arrangement changing mechanism according to claim 1 of the present invention, and FIGS. 8 to 10 show the present invention. An embodiment corresponding to the article arrangement changing mechanism according to the second aspect of the present invention will be described.

FIG. 1 is a front view of an automatic box packing device embodying the present invention, FIG. 2 is a view in the direction of arrow A in FIG. 1, and FIG. 3 is a plan view of the same.

In the figure, 1 is a conveyor, 2 is a storage means connected to the end of the conveyor 1, 3 is a pick-up boxing means having a pattern set head 4 as an arrangement changing mechanism of the present invention, and 5 is a box container. (In the illustrated example, this is a container transport conveyor for transporting the cardboard box 6).

Note that reference numeral 100 denotes a fruit or vegetable as an article for packing, and in this example, the fruit or vegetable 100 is placed on the tray 10 and transported.

That is, according to the automatic box packing apparatus, the trays 10 containing the fruits and vegetables 100 conveyed by the conveyor 1 are arranged in a predetermined arrangement on the storage means 2 in a predetermined arrangement. The upper fruits and vegetables 100 are picked up by the pick-up boxing means 3 and then changed to a predetermined arrangement, and packed in the cardboard box 6 waiting at a predetermined packing position Y in the predetermined arrangement. ing.

Hereinafter, the conveyor 1 is composed of 10 fruits and vegetables.
It is preferable to use a conveyor that is configured to have a width suitable for transporting the tray 10 and that can accumulate, such as a roller conveyor or a chain conveyor. In the illustrated example, the partition 11 is provided so as to form a two-row shape. However, the structure of the two-row shape is not limited and may be one or a plurality of different shapes.

The conveyor 1 is connected to a predetermined sorting stage (sorting outlet) such as a fruit and vegetable sorter (not shown).
It is also possible to configure so that fruits and vegetables 100 sorted in a predetermined section are received and transported respectively.

Reference numeral 12 denotes a first stopper device, which is provided for temporarily stopping the tray 10 containing the fruits and vegetables 100 conveyed on the conveyor 1 at the terminal end 1a of the conveyor 1. The first stopper device 12 is configured by combining a stop plate 13 and an actuator 14 such as a cylinder, and the stop plate 13 projects when the actuator 14 is operated by a signal.

Reference numeral 15 denotes a second stopper device, which is configured by combining a locking piece 16 and an actuator 17. The second stopper device 15 is provided at a predetermined position on the upstream side of the first stopper device 12, in the example shown in FIG.
Are provided on both sides. Also, this second stopper device
Reference numeral 15 is designed to operate when the stop plate 13 of the first stopper device 12 is lowered and the stopper action is released, and the locking piece 16 is projected.

That is, when the stopper function of the first stopper device 12 is released and the stopper function of the second stopper device 15 is actuated, the tray 10 between the respective stopper devices 12 and 15 is stored by the transport conveyor 1 in the storage means 2 in the subsequent stage. Acts to be sent up. These control circuits can be configured using a known sequence control circuit.

The storage means 2 is provided at a subsequent stage of the transport conveyor 1,
It is configured by a conveyor 21 that is intermittently driven by a signal.
The conveyor 21 has a pulley 2 provided at a predetermined distance.
A belt conveyor having a conveyor belt 24 such as a V-belt or a flat belt stretched between the belts 2 and 23 can be constituted, and is driven to rotate by a driving device (not shown). Further, in the illustrated example, the conveyor 21 is configured to have a machine width and a machine length in which three trays 10 arranged in two rows are placed in the traveling direction, but the present invention is not limited to this.

In the illustrated example, the belt conveyor is configured to be driven intermittently. However, it may be configured using a roller conveyor or the like that can accumulate.

Reference numeral 25 denotes an end plate provided at an upper portion of the gantry 26, which is provided to stop the saucer 10 containing the fruits and vegetables 100 conveyed by the conveyor 21 at a predetermined position.

The position of the saucer 10 containing the fruits and vegetables 100 stopped at a predetermined position by the end plate 25 is confirmed by a sensor (not shown) or the like, and the driving device of the conveyor 21 (FIG. (Not shown) is turned ON and OFF.

The conveyor 21 is provided so as to be tilted downward by a predetermined angle by a cylinder 27 with the axis of the downstream pulley 23 as a fulcrum. The drive direction (not shown) is controlled so that the transport direction when tilted rotates in the direction opposite to that in the horizontal state.

Numeral 7 denotes an empty tray conveying conveyor constituted by, for example, a belt conveyor, the start end of which is provided so as to be adjacent to the pulley 22 when the conveyor 21 is tilted downward by a predetermined angle. The empty tray transport conveyor 7 is provided so as to return the empty tray 10 to a supply unit of a sorter (not shown).

Next, the pick-up boxing means 3 will be described. The pick-up boxing means 3 has a pattern set head 4 as an arrangement changing mechanism described later, and the pattern set head 4 allows a predetermined number of fruits and vegetables 100 to stand by on the storage means 2 in a predetermined arrangement. After being picked up, the picked fruits and vegetables 100 are changed into a predetermined arrangement, and are packed in a cardboard box 6 waiting at a predetermined packing position Y on the container transport conveyor 5.

In addition, this arrangement change is performed in the case of FIG. 6 and FIG.
(A) in a two-row arrangement (standby state on storage means 2)
Is changed to the arrangement state (b) (a state in which the intervals between articles are narrowed in a zigzag pattern within the box size range), but the present invention is not limited to this.

FIG. 5 is a front view showing the pattern set head 4 as an arrangement changing mechanism, and FIG. 6 is a plan view of the same, showing a non-operating state. FIG. 7 is a plan view showing a state in which the arrangement is changed in a staggered manner by operating.

In the drawing, reference numeral 46 denotes a holder, which includes a cam follower 421 as a guide portion, a suction pad 422 as a holding portion, a support member 423, and the like, and a predetermined number (six in the illustrated example) is provided as described later. ing. Reference numeral 41 denotes a thin plate-shaped base, and a plurality of openings 41A of a predetermined shape are formed in the plate surface of the base 41, and the support members 423 on the upper portions of the holders 46 penetrate the openings 41A, respectively. It can be moved.

Reference numeral 42 denotes a plurality of (six in the illustrated example) link arms corresponding to the holders 45, and each of the link arms 42 has one side 42a pivotally mounted on the lower surface of the base 41, The support member 423 of the holder 46 is fixedly provided on the other side 42b which is rotatable around the center. Each holder 46
A cam follower 421 as the guide portion is pivotally supported at the upper end of the support member 423, and each of the cam followers 421 is slidably fitted along a cam groove 43A of a pattern cam 43 described later. .

The shape of the opening 41A is different from that of the other side 42 of the link arm 42 provided with the holder 46 having the cam follower 421 and the like.
It is sufficient that b has a shape that does not hinder rotation by a predetermined angle, and the shape is not limited to the illustrated shape, and may be, for example, a round shape or a square shape.

Reference numeral 422 denotes a suction pad of a vacuum suction type as a holding portion of the holder 46, and the suction 422 is connected to the other side 4 of the link arm 42.
The support member 423 provided substantially perpendicular to 2b and a slide shaft 425 provided on the support member 423 so as to be slightly slidable form a lower portion of the holder 46. 424
Is a coil spring, which is provided in combination with the slide shaft 425 so that the suction pad 422 can move slightly in the vertical direction.

Reference numeral 43 denotes a pattern cam having a plurality of cam grooves 43A of a predetermined shape, and is formed in a circular plate shape as shown in FIGS. The cam followers 421 of the holders 46 are slidably fitted in the respective cam grooves 43A of the pattern cam 43. The shape of each cam groove 43A is formed so as to engrave a locus along which the cam follower 421 of each holder 46 slides so as to change the articles arranged in a fixed arrangement held by each holder 46 to a predetermined arrangement state. Reference numeral 431 denotes a support shaft, which stands substantially at the center of the base 41 and on the upper surface. The pattern cam 43 is attached to the support shaft 431 via a bearing 432, and the pattern cam 43 is rotatable about the support shaft 431.

Reference numeral 44 denotes a cylinder as an actuator that operates to rotate the pattern cam 43 by a predetermined angle.
Is connected to a part of the base 41, and
Is connected to an eccentric part of the pattern cam 43.

That is, the pattern cam 43 is connected to the rod side 442 of the cylinder 44.
By performing a constant stroke expansion and contraction operation, the device operates so as to rotate by a predetermined angle about a support shaft 431 provided on the base 41.

The actuator for rotating the pattern cam 43 by a predetermined angle is not limited to the example shown in the figure, and may be configured freely, such as a drive mechanism using a motor or the like.

Reference numeral 45 denotes a support frame, and a support shaft 43 erected on the base 41.
1 is supported from above, and the base 41 is formed to be suspended from above.

Here, the operation of the above-described pattern set head 4 will be described.

When the cylinder 44 is operated from the non-operation state shown in FIG.
Rotates about a support shaft 431 by a predetermined angle. When the pattern cam 43 rotates by a predetermined angle, each of the cam followers 42
1 slides along the cam groove 43A of the pattern cam 43 into which the cam follower 421 fits. With the sliding movement of each of the caro-followers 421, the other side 42b of each of the link arms 42 rotates along a predetermined trajectory around one side 42a,
Each cam follower 421 moves to a predetermined position (FIG. 7). In this manner, each of the cam followers 421 moves to a predetermined position (FIG. 7), and each of the holders 4 provided on the other side 42b of each of the link arms 42.
The six suction pads 422 are changed from a fixed arrangement state (FIG. 6) to a predetermined arrangement state (FIG. 7).

Reference numeral 301 denotes a frame provided so as to straddle the storage means 2 and the container transport conveyor 5, and a rail 302 is erected on an upper portion thereof to form a portal shape as a whole.

Reference numeral 303 denotes a transfer carriage, which rotatably supports guide rollers 305 on both side surfaces 304a and 304b of the frame body 304, respectively, and
It is like running along 02. Reference numeral 306 denotes an elevating cylinder, and a lower portion 304 of the frame 304 with the rod 306A facing downward.
Attached to C. The distal end of the rod 306A is connected to the support frame 45 of the pattern assembly head 4 via a joint 306B.
Is linked to Reference numeral 307 denotes a guide bearing provided on the lower portion 304C of the frame 304. Reference numeral 308 denotes a guide bar provided in combination with the guide bearing 207, and is connected to the support frame 45 of the pattern assembly head 4 so as to guide the vertical movement of the pattern assembly head 4.

Reference numeral 309 denotes a slide cylinder, a part of which is fixed to a part of the rail 302, and a distal end of a rod 309A is connected to a part of the frame 304, and the transfer carriage 303 is slid by the expansion and contraction of the rod 309A. It is possible.

The mechanism for vertically moving the pattern assembly head 4 and the mechanism for sliding the pattern assembly head 4 in the horizontal direction are configured using cylinders in the illustrated example. However, the present invention is not limited to this, and other known lifting mechanisms and transfer mechanisms may be used. It can also be configured.

It is preferable to use a conveyor that can accumulate, such as a roller conveyor or a chain conveyor, with a width suitable for conveying the cardboard boxes 6 as the container conveyor 5. In addition, the container transport conveyor 5 is provided in parallel with the transport conveyor 1 in the illustrated example, but the present invention is not limited to this. The container transport conveyor 5 is free if it can be made to stand by at a predetermined packing position Y of the cardboard box 6. You may comprise with a combination.

Reference numeral 51 denotes a stopper device, which includes a stopper plate 52 and a cylinder 53.
And acts so as to temporarily suspend the cardboard box 6 conveyed on the container conveyor 5 at a predetermined packing position Y.

Reference numeral 8 denotes a product transport conveyor, which is provided so as to merge and carry out the boxed cardboard boxes 6 sent out from the respective container transport conveyors 5 when configured using a plurality of box packing devices of the present invention.

The operation of the automatic box packing apparatus of the embodiment configured as described above will be described below.

When a plurality of trays 10 containing fruits and vegetables 100 conveyed by the conveyor 1 stand in a row in the storage means 2 and wait for a predetermined number (six in the example in the figure), the lifting cylinder 306 of the pick-up boxing means 3
Operates to lower the pattern set head 4 as an arrangement changing mechanism to a predetermined position. When the pattern set head 4 is lowered, the suction pads 422 of the holders 46 of the pattern set head 4 are in a predetermined arrangement state (two rows and three rows in the illustrated example) on the storage means 2. Each of the fruits (six in the figure) is brought into contact with the upper part of the fruits and vegetables 100 to adsorb and hold them. Each suction pad 422 holding one fruit and vegetable 100
Moves slightly upward due to the operation of the lifting cylinder 306 (solid line position in FIG. 2). When the fruits and vegetables 100 and the saucer 10 are separated by this upward movement, the slide cylinder 3
09 operates to move the pattern set head 4 holding a predetermined number of fruits and vegetables 100 to a position above the boxing position Y. During this lateral movement, the cylinder 44 of the pattern assembly head 4 operates to rotate the pattern cam 43 by a predetermined angle about the support shaft 431. With the rotation of the pattern cam 43 by a predetermined angle, each of the cam followers 421 fitted into each of the cam grooves 43A of the pattern cam 43 slides along the cam groove 43A, and the other side of each of the link arms 42. The cam followers 421 of the respective holders 46 move to predetermined positions, respectively, by rotating the reference numeral 42b along a predetermined trajectory. By moving the cam follower 421 to a predetermined position in this manner, each link arm 42
The suction pads 422 of the holders 46 provided on the other side 42b are changed to a predetermined arrangement state (FIG. 7) together with the fruits and vegetables 100 held by the holders. Then, the pattern set head 4 in which the fruits and vegetables 100 held by the suction pads 422 are changed to a predetermined arrangement is moved up and down by the lifting cylinder 306 of the pick-up boxing means 3.
, The suction pads 422 holding the fruits and vegetables 100 one by one enter the cardboard box 6 waiting at the packing position Y and release the suction holding in the box 6.
Thus, the picking and packing means 3 having the pattern set head 4 packs the fruits and vegetables 100 in the predetermined arrangement.

In the above description, the operation of changing the arrangement is described as being performed while the pattern set head 4 is laterally moved to the packing position Y. However, the present invention is not limited to this.
It can be carried out arbitrarily as long as it is between the time when 0 is taken and the time when it is packed in a box.

FIG. 8 is a front view showing another embodiment (an embodiment corresponding to claim 2 of the present invention) of the pattern set head 4 as an arrangement changing mechanism. FIG. 9 is a plan view of the same, showing a state in which it is not operated. FIG. 10 is a plan view showing a state at the time of operation.

The arrangement change in this embodiment is described with an example in which the arrangement state of (a) in FIG. 4 is changed to the arrangement state of (c) (a state in which the interval between articles in a row is narrowed within the box size range). However, the present invention is not limited to this.

This pattern set head 4 is an embodiment in which the link arm 42 is not provided, and a base 41, a holder 46, and a pattern cam are provided.
It is roughly constituted by 43 and a cylinder 44 as an actuator. In this embodiment, instead of not providing the link arm 42, each holder 46 has a sliding portion 426, which is slidably fitted in a guide groove 41B of a base 41 described later, on an upper portion of the support member 423. , And are supported by the base 41.

A plurality of guide grooves 41B having a predetermined shape are cut in the base 41, and the sliding portions 426 of the holders 46 are slidably fitted in the respective guide grooves 41B as described above. . The shape of the guide groove 41B of the base 41 is formed so as to engrave the movement trajectory of the sliding portion 426 when the articles held in the respective holders 46 and in the fixed arrangement state are changed to the predetermined arrangement state.

Each of the holders 46 is provided with a support member 423 extending in a substantially vertical direction through the guide groove 41B of the base 41, and each of the holders 46 is provided at its lower part in the previous embodiment (fifth embodiment). (Figs. 7 to 7) have a suction pad 422 as a holding portion, and can slide on the upper end of the support member 423 along the cam groove 43A of the pattern cam 43 similarly to the previous embodiment. And a cam follower 421 as a guide that fits into the cam follower 421.

That is, in the pattern set head 4 of this embodiment, the base
When the pattern cam 43 rotates by a predetermined angle about the support shaft 431 provided on the 41, the cam followers 421 of each holder 46 slide along each cam groove 43A of the pattern cam 43, and 426 slides along each guide groove 41B of the base 41, and each cam follower 421 moves to a predetermined position, thereby changing the fruits and vegetables 100 held by each holder 46 to a predetermined arrangement. doing.

The other configuration is the same as that of the embodiment of FIG. 5, and the description is omitted by using the same reference numerals.

In the pattern set head 4, when the cylinder 44 is operated from the non-operation state (FIG. 9) to cause the rod side 442 to protrude in the direction of the arrow, the pattern cam 43 rotates a predetermined angle about the support shaft 431. . With the rotation of the pattern cam 43 by a predetermined angle, each of the cam followers 421 slides along each of the cam grooves 43A of the pattern cam 43, and each of the sliding portions 4
The 26 slides along each guide groove 41B of the base 41, and each cam follower 421 moves to a predetermined position. Thereby, the pattern set head 4 arranges the fruits and vegetables 100 held by the suction pads 422 of each holder in a predetermined arrangement state (first state).
(Fig. 10).

Both the above description and the accompanying drawings are merely examples of the embodiments, and do not limit the invention. Naturally, the present invention may be applied to other shapes and arrangements as long as the contents are described in the claims. It is.

[Effects of the Invention] As described above, the arrangement changing mechanism for articles according to claim 1 of the present invention is configured to transfer the articles arranged in a fixed arrangement state to the holding section of each holder having the holding section and the guide section. An article arrangement changing mechanism for changing the held article to a predetermined arrangement by moving each of the guide portions to a predetermined position, wherein the base and the base have: A plurality of link arms, each provided with a corresponding one of the holders, having one side pivotally attached to the base and having the holder provided on the other side rotatable about the axis, and a plurality of cam grooves having a predetermined shape. The guide portion of each of the holders is slidably fitted in each of the cam grooves, and is rotatable at a predetermined angle around a support shaft provided on the base. Align each guide section with each cam groove. A pattern cam for rotating each of the link arms while sliding, thereby moving each of the guide portions to the predetermined position, and an actuator for operating the pattern cam to rotate the pattern cam by the predetermined angle. After the articles in the fixed arrangement state are held one by one in the holding section of each holder, the actuator is actuated and the pattern cam is turned by a predetermined angle. While each guide arm slides along each cam groove of the pattern cam, each link arm rotates to move each guide part to a predetermined position, thereby changing the held articles to a predetermined arrangement. Therefore, changing an article in a certain arrangement to a predetermined arrangement does not require a large number of actuators as in the prior art, but is performed by a single actuator. The Nkamu obtained performed only by a predetermined angle rotation, it is possible to obtain the sequence changing mechanism of lightweight articles with very simple and low cost.

According to a second aspect of the present invention, there is provided an article arrangement changing mechanism for holding an article in a fixed arrangement state by one of the holders of a holder having a holding section and a guide section. By moving each part to a predetermined position,
In an article arrangement changing mechanism for changing the held articles into a predetermined arrangement, the article has a plurality of guide grooves of a predetermined shape, and each of the guide grooves is slidable by the sliding portion of each of the holders. And a plurality of cam grooves having a predetermined shape, and guide portions of the holders are respectively slidably fitted in the cam grooves, and a predetermined angle around a support provided on the base is provided. When each of the guide portions is rotatable and rotates by the predetermined angle, each of the guide portions slides along each of the cam grooves while each of the guide portions slides along each of the cam grooves. Are moved to the predetermined position, and the actuators actuate the pattern cam to rotate the pattern cam by the predetermined angle. so When the actuator is actuated and the pattern cam is rotated by a predetermined angle after being held individually, the guide portion of each holder slides along each cam groove of the pattern cam with this rotation. The sliding portion slides along each guide groove of the base, and each guide portion moves to a predetermined position, and changes the held articles into a predetermined arrangement, so that they are in a fixed arrangement state. In order to change an article into a predetermined arrangement, a single actuator can be used only by rotating a pattern cam by a predetermined angle without requiring a large number of actuators as in the prior art. As compared with the article arrangement changing mechanism of Item 1, each link arm can be omitted, and a simpler, lower-cost, lighter article arrangement changing mechanism can be obtained.

Further, in the box packing device according to claim 3 of the present invention, since the pick-up boxing means has the article arrangement changing mechanism according to claim 1 or 2, it is caused by the effect of the arrangement changing mechanism. Thus, a very simple, low-cost, and lightweight box packing device can be obtained.

[Brief description of the drawings]

The drawings all show embodiments of the present invention. FIG. 1 is a front view of an automatic box packing device for carrying out the present invention. FIG. 2 is a view in the direction of arrow A in FIG. FIG. 3 is a plan view of FIG. FIGS. 4 (a), (b) and (c) are illustrations of the arrangement of articles. FIG. 5 is a front view of the pattern set head. FIG. 6 is a plan view of FIG. 5, and is an explanatory view showing a non-operating state. FIG. 7 is a plan view showing the same operating state. FIG. 8 is a plan view showing another embodiment of the pattern set head. FIG. 9 is a front view showing the non-operating state of FIG. FIG. 10 is a plan view showing the operation state of FIG. DESCRIPTION OF SYMBOLS 1 ... Conveyer conveyor 2 ... Storage means 3 ... Pick-up and packing means 4 ... Pattern group head 5 ... Conveyor for container transfer 6 ... Corrugated cardboard box 7 ... Conveyor for empty tray tray 8 ... Product transfer Conveyor 10… Receiving tray, 100… Fruits and vegetables 11… Partition 11… First stopper 13… Stop plate 14… Actuator 15… Second stopper 16… Locking piece 17… Actuator , 21 ... Conveyor 22 ... Pulley, 23 ... Pulley 24 ... Conveyor belt, 25 ... End plate 26 ... Stand, 27 ... Cylinder 301 ... Frame, 302 ... Rail 303 ... Transfer cart, 304 …… Frame 305 …… Guide roller, 306 …… Elevating cylinder 306A …… Rod, 306B …… Joint 307 …… Guide bearing, 308 …… Guide bar 309 …… Slide cylinder, 41 …… Base 41A …… Opening , 41B …… Guide groove 42 …… Link arm, 421 …… Cam Follower 422 ... Suction pad, 423 ... Support member 424 ... Coil spring, 425 ... Slide shaft 426 ... Sliding part, 43 ... Pattern cam 43A ... Cam groove, 431 ... Support shaft 432 ... Bearing , 44… Cylinder 441… Head side, 442… Rod side 45… Support frame, 46… Holder 51… Stopper device, 52… Stopper plate 53… Cylinder, Y… Boxing position

Claims (5)

(57) [Claims] 1. An article in a predetermined arrangement state is held one by one by a holding part of each holder having a holding part and a guide part,
An article arrangement changing mechanism for changing the held articles to a predetermined arrangement by moving each of the guide portions to a predetermined position, wherein the base corresponds to each of the holders. And a plurality of cam grooves each having a predetermined shape and a plurality of cam grooves having the holder provided on the other side rotatable around the shaft. The guide portions of the holders are slidably fitted to each other, and are rotatable by a predetermined angle around a support shaft provided on the base, and each of the guide portions is rotated by the predetermined angle. A pattern cam for rotating each of the link arms while sliding along the cam shaft to move each of the guide portions to the predetermined position, and an actuator for operating the pattern cam to rotate the pattern cam by the predetermined angle. An arrangement changing mechanism for articles, comprising: a chatter; 2. An article in a fixed arrangement state is held one by one by each holding part of each holder having a holding part and a guide part,
An article arrangement changing mechanism for changing the held articles into a predetermined arrangement by moving each of the guide portions to a predetermined position, the guide section having a plurality of guide grooves having a predetermined shape, and The guide groove has a base in which the sliding portion of each of the holders is slidably fitted, and the cam groove has a plurality of cam grooves of a predetermined shape, and the guide portions of the holders are slidable in the respective cam grooves. The sliding portions are fitted together and are rotatable at a predetermined angle around a support shaft provided on the base, and when rotating at the predetermined angle, slide the guide portions along the respective cam grooves. A pattern cam for sliding each of the guide portions to the predetermined position by sliding the guide cam along the respective guide groove, and an actuator for operating the pattern cam to rotate the pattern cam by the predetermined angle. And an article arrangement changing mechanism. 3. An article arrangement changing mechanism according to claim 1 or 2, further comprising a storage means for waiting articles to be packed in a box in a fixed arrangement, and an article arrangement changing mechanism according to claim 1 or 2.
After holding and waiting a predetermined number of articles on the storage means by the arrangement changing mechanism, the actuator of the arrangement changing mechanism is actuated to form a predetermined arrangement, and the articles are placed in a boxed container waiting at a predetermined position. A pick-up boxing means for packing boxes in a predetermined arrangement. 4. The box packing device according to claim 3, wherein the article is a fruit or vegetable. 5. The box packing apparatus according to claim 3, wherein the articles are fruits and vegetables placed on a saucer.