JP4226738B2 - Packaging method for goods - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a boxing method for boxing articles sequentially conveyed from the upstream side.
[0002]
[Prior art]
11 and 12 are schematic plan views of an apparatus for carrying out this seed boxing method.
[0003]
Articles (a) and (a) placed on the upstream conveyor (1) for sequentially supplying articles to be packaged from the upstream side to the box stacking device are pushed and transferred by the conveying claws (11) and (11). At the same time, the articles (a) and (a) conveyed to the downstream end of the upstream conveyor (1) are moved downstream by the intermittent bucket conveyor (2) that intermittently travels in the vertical direction with respect to the upstream conveyor (1). It is to be transferred. Partition plates (21) and (21) are arranged at a predetermined pitch on the outer periphery of the intermittent bucket conveyor (2), and supply bucket portions (23) and (23) between the partition plates (21) and (21) The articles (a) and (a) are conveyed to the downstream side while being accommodated.
[0004]
On the side of the intermittent bucket conveyor (2), there is provided a relay device (3) that reciprocates in parallel with this, and the upper surface of the relay device (3) is supplied with the intermittent bucket conveyor (2). Relay bucket portions (33) and (33) for holding articles (a) and (a) at the same pitch as the bucket portions (23) and (23) are disposed.
[0005]
In addition, the part located on the opposite side of the intermittent bucket conveyor (2) across the relay device (3) is provided with a receiving conveyor (4) that runs parallel to these, and the receiving conveyor ( On the outer periphery of 4), receiving bucket portions (43) (43) formed between the bucket walls (41) (41) are disposed at a predetermined pitch. Each receiving bucket section (43) is divided into two receiving compartments (430) and (430) by partition plates (42) and (42), and the receiving compartments (430) and (430) Articles (a) and (a) are placed and accommodated.
[0006]
Next, a description will be given of two cases of packing the articles (a) and (a) in a packaging box using the above boxing device, and a single packing operation as an example of a small boxing operation.
[0007]
First, a two-packing operation for filling articles (a) and (a) in a two-packing packaging box will be described with reference to FIG.
[0008]
In this case, each of the upstream conveyor (1) and the receiving conveyor (4) is V ₁ , V _Four The intermittent bucket conveyor (2) runs continuously at a constant speed of ₂ The relay device (3) performs a traveling speed V of the receiving conveyor (4). _Four A reciprocating operation is performed to move back to the initial position after acceleration.
[0009]
As shown in FIG. ₁ The specific article (a) is pushed into the inside of the supply bucket section (23) of the intermittent bucket conveyor (2) from the open claw (11) of the upstream conveyor (1) that continuously travels at the inside. Then, the intermittent bucket conveyor (2) has a speed V of one pitch. ₂ It waits for a new supply bucket part (23) to coincide with the downstream end of the upstream conveyor (1) and the next article (a) to be pushed. By repeating this operation, articles (a) and (a) are filled from the upstream conveyor (1) to the supply bucket portions (23) and (23) of the intermittent bucket conveyor (2).
[0010]
The four articles (a) and (a) on the intermittent bucket conveyor (2) are intermittently opposed to the open ends of the four relay bucket parts (33) and (33) of the relay device (3). As the bucket conveyor (2) and the relay device (3) are stopped, the pushers (19) and (19) are operated, and the four articles (a) and (a) are simultaneously transferred to the relay bucket portion ( 33) It is pushed into (33) (see the imaginary line in FIG. 11 (a)).
[0011]
Next, the relay device (3) operates at a predetermined timing and the speed V of the receiving conveyor (4). _Four The relay device (3) is accelerated until it matches, so that the traveling speeds of the relay device (3) and the receiving conveyor (4) match and the relay bucket portion (33) (33) of the relay device (3) (B) in which the open ends of the receiving compartments (430) and (430) of the receiving conveyor (4) face each other. In this state, the four pushers (19) and (19) are operated, and the articles (a) and (a) indicated by solid lines on the relay device (3) are received by the receiving conveyor (4) as indicated by the imaginary lines in FIG. Are pushed into the receiving bucket portions (43) and (43) two by two. Thereafter, the relay device (3) is quickly returned to the initial position.
[0012]
When the article (a) (a) is transported to the downstream end of the receiving conveyor (4), the article (a) (a) ₂ ) In units of two.
[0013]
Next, a small box packing operation for packing one article (a) (a) in a single packing box will be described with reference to FIG.
[0014]
Also in this case, the upstream conveyor (1) and the receiving conveyor (4) are each V ₁ , V _Four The relay device (3) travels continuously at a constant speed of V _Four Performs reciprocating movement that repeats running and stopping. In contrast, the intermittent bucket conveyor (2) ₂ Slower speed V _Five Repeat the operation to stop after driving.
[0015]
As shown in FIG. 12A, when the article (a) conveyed to the downstream end of the upstream conveyor (1) enters the supply bucket portion (23) of the intermittent bucket conveyor (2), the intermittent bucket conveyor ( 2) is the speed V by 2 pitches of the supply bucket part (23) (23) _Five The vehicle travels to stop and waits until a new article (a) is pushed into the supply bucket section (23) from the upstream conveyor (1). At this time, since the intermittent bucket conveyor (2) travels by the two pitches, as shown in FIG. 12 (a), every other article (a ) (a) is contained.
[0016]
When the two articles (a) and (a) on the intermittent bucket conveyor (2) face the relay bucket part (33) and (33) of the relay device (3), the pushers (19) and (19) are the same as described above. The two articles (a) and (a) are simultaneously pushed into the relay bucket portions (33) and (33) of the relay device (3) (see the imaginary line in FIG. 12A). In addition, the relay device (3) operates at a predetermined timing, and this is the speed V of the receiving conveyor (4). _Four It is accelerated until it matches. As a result, the relay bucket part (33) (33) on the relay device (3) containing the articles (a) (a) is received in the receiving bucket part (43) (43) on the receiving conveyor (4). It runs at the same speed as the receiving side compartment (430) (430) located at the receiving side reference (400) (400) of the most upstream part, and the relay bucket part (33) (33) and the receiving side reference (400) 12 (b) where the open ends of the receiving compartments (430) and (430) located at (400) face each other. Thereafter, the pushers (19) and (19) are activated and the articles (a) and (a) on the relay device (3) indicated by the solid line in FIG. 12 (B) are received as indicated by the imaginary line in the same figure (B). Transferred to the receiving compartment (430) of the receiving reference (400) of the conveyor (4). Then, every other article (a) (a) is received and aligned on the conveyor (4), and the article (a) is packed in a single packing box (b ₁ ) One by one.
[0017]
[Problems to be solved by the invention]
In this case, when carrying out a single packing operation of packing goods (a) and (a) into a single box, the intermittent bucket conveyor (2) is moved by 2 pitches while the upstream conveyor (1) is running by 1 pitch. Need to run. On the other hand, at the time of packing two large boxes, the intermittent bucket conveyor (2) may be moved by one pitch while the upstream conveyor (1) is driven by one pitch. Therefore, in the above-mentioned conventional one, the speed V of the intermittent bucket conveyor (2) at the time of packing one piece. _Five Speed V when packing 2 ₂ It is necessary to set it to about twice. Therefore, the speed V is controlled by operating the drive motor of the intermittent bucket conveyor (2) at the capacity limit. _Five Is obtained, the speed V of the intermittent bucket conveyor (2) when packing two ₂ Indicates that the speed V _Five In addition to this, it is necessary to set the speed of the upstream conveyor (1) and the receiving conveyor (4) at the time of two packing, and the unit time per unit time at the time of two packing is related to this. There is a problem that the number of articles (a) and (a) that can be boxed, that is, the packaging ability is lowered.
[0018]
In the above description, the operation of packing in a packaging box for packing two pieces is described as a large boxing operation, and the operation of packing in a packing box for packing one piece is described as a small boxing operation. For example, when the articles (a) and (a) are packaged in a four-packed large box and a two-packed small box, there is a problem similar to the above in that the packaging capacity at the time of large box packing is reduced.
[0019]
The present invention has been made in view of such points,
`` Intermittent bucket conveyor (2) in which a plurality of supply bucket sections (23) and (23) for conveying articles in a loaded state are arranged at a constant pitch on the outer periphery and intermittently run,
Relay buckets that are reciprocally moved in parallel to the side of the intermittent bucket conveyor (2) in the running direction and that are an integral multiple of the number of large boxes N that are arranged at the same pitch as the supply buckets (23) and (23). Relay device (3) provided on the top surface with parts (33) and (33),
A plurality of receiving bucket portions (43) (43) (inside) are partitioned into the receiving side compartments (430) (430) of the large box packing number N arranged at the same pitch as each of the relay bucket portions (33) (33). 43) receiving conveyor (4) arranged on the outer periphery and continuously running in parallel with the relay device (3) on the opposite side of the intermittent bucket conveyor (2);
A box holding means (8) for holding a large box or a small box as a packaging box having a different size at a boxing position on the side of the traveling area of the receiving conveyor (4);
A state in which the articles (a) and (a) are transferred from the supply bucket portions (23) and (23) facing each other in a stopped state to the relay bucket portions (33) and (33) and traveling at the same speed. A transfer device (6) for transferring an article from the relay bucket portion (33) opposed to the receiving bucket (43),
All the articles (a) and (a) individually accommodated in the receiving compartments (430) and (430) with the number of large boxes N arranged in the receiving bucket part (43) are stored in the large box. Large boxing operation for packing, and articles (a) arranged in the receiving bucket section (43) and accommodated in the receiving side compartments (430) and (430) of the small box packing number n that is the final number of the large box packing number N ) (a) is a packaging method using a packaging apparatus comprising a packaging amount selection means (S) that selectively selects a small boxing operation to pack the small box,
When a large boxing operation is selected by the packaging amount selection means (S), the articles (a) and (a) are simultaneously transferred from the intermittent bucket conveyor (2) to all the relay bucket portions (33) and (33). And changing the articles (a) (a) in all the relay bucket parts (33) (33) to all the receiving compartments (430) (430) in the receiving bucket part (43), In the `` Packaging method of goods '', the number of articles that can be packed per unit time during large boxing and small boxing operations can be set to the same number, and the packaging capacity in large box packaging compared to the conventional ones described above. The challenge is to be able to improve.
[0020]
[Means for Solving the Problems]
<1>
The technical means of the present invention for solving the above problems will be described with reference to FIGS.
“A specific receiving side compartment (430) selected from the receiving side compartments (430) and (430) arranged in the receiving bucket section (43) is set as a receiving side reference (400), and the relay The relay bucket group (33) (33) group arranged on the device (3) is divided into a group having the same number of relay bucket sections (33) as the small box packing number n to form a relay bucket group (G) And
When a small boxing operation is selected by the packaging amount selection means (S),
The articles (a) and (a) are simultaneously transferred from the supply bucket portions (23) and (23) of the intermittent bucket conveyor (2) to all the relay bucket portions (33) and (33) of the relay device (3). A first transfer step (FIG. 2);
The number of small boxes packed in which the relay bucket portion (33) of the small number of packing boxes n constituting the relay bucket group (G) includes the receiving side compartment (430) of the receiving side reference (400) of the receiving bucket portion (43) When facing the n receiving side compartments (430) while traveling at the same speed, the articles (a) in the facing relay bucket portions (33) are placed in the facing n compartments of the facing small boxes. (430) a second transfer process for transferring each (arrow (A) in FIG. 2),
Other relay bucket groups following the relay bucket group (G) emptied in the second transfer step while returning the relay device (3) to the initial position direction before the execution of the second transfer step The receiving side reference (400) located at the further upstream side of the uppermost article (a) in which the relay bucket part (33) with a small number of small boxes forming (G) is transferred to the receiving conveyor (4). A return movement step of adjusting the position of the relay device (3) so as to oppose the receiving side compartment (430) of the small box packing number n including the receiving side compartment (430) of FIG.
Articles in each relay bucket section (33) facing the receiving compartment (430) with a small number of small boxes n including the receiving compartment (430) of the receiving reference (400) by executing the return movement step ( a) a third transfer step of transferring a) to each of the opposing receiving compartments (430) and (sequentially executing (arrow (B) in FIG. 4)).
[0021]
In the present invention, the traveling speed of the intermittent bucket conveyor (2) during the small boxing operation is set to the same speed as the traveling speed during the large boxing operation. In any of these boxing operations, the intermittent bucket conveyor (2) is controlled to operate synchronously with the upstream conveyor (1) from the upstream conveyor (1) already described.
[0022]
According to the above technical means, the small box packing operation is performed as follows.
[0023]
When a small boxing operation is selected by the packaging amount selection means (S), all the relay bucket portions (33) of the relay device (3) from each supply bucket portion (23) (23) of the intermittent bucket conveyor (2) are selected. ) (33), the articles (a) and (a) are transferred at the same time (first transfer step). As a result, as shown by the imaginary line in FIG. 1, all the relay bucket parts ( Articles (a) and (a) are accommodated in 33) and (33).
[0024]
Next, the relay bucket group (33) of n small boxes packed in each relay bucket group (G) (the relay bucket group (G) is composed of one relay bucket section (33) in FIGS. 1 to 4). The article (a) in the case of the receiving compartment (430) of the number n of small boxes containing the receiving reference (400) as shown by the arrow (A) in FIG. A second transfer step is performed to transfer the article (a) in the receiving compartment (430) of the number n of small boxes in the receiving bucket section (43) (see FIG. 2). Imaginary line item (a)). Accordingly, when the small box packing number n is “1” (as illustrated in FIGS. 1 to 4), one article (a) (received on the receiving side reference (400) is accommodated in the receiving bucket section (43). ) Is transferred. On the other hand, when the number of small boxes n is “2”, the two articles (a) and (a) separately accommodated in the two relay bucket portions (33) are transferred to the receiving bucket portion (43). . Therefore, in the present invention, the number of articles (a) to be packed in a small box is not limited to one. In this way, the number of articles (a) to be boxed in the small boxing operation is transferred to the receiving side compartment in the receiving bucket section (43).
[0025]
Next, the relay device (3) is moved back to a position corresponding to the further upstream side of the article (a) in the uppermost stream portion transferred to the receiving side compartment (430) in the second transfer step. The In addition, the receiving bucket portion in which the relay bucket portion (33) of the other small box packing number n following the relay bucket portion (33) of the small box packing number emptied in the second transfer step is located on the upstream side. The position of the relay device (3) is adjusted so as to face the receiving side compartment (430) of the small box packing number n including the receiving side reference (400) of (43) (return movement process).
That is, the relay device (3) is set at the position shown in FIG. Thereby, in the receiving bucket part (43) located in the further upstream of the goods (a) of the most upstream part transferred to the receiving side compartment (430) of the said small box packing number n by the said 2nd transfer process. The relay bucket section (33) of the small box packing number n provided with the article (a) is opposed to the receiving side compartment (430) (including the receiving side base (400)) of the small box packing number n. Become. Therefore, as indicated by an arrow (B) in FIG. 4, in the relay bucket portion 33 of the small box packing number n (in the case of FIG. 1 to FIG. 4, “n = 1” is illustrated). The article (a) is transferred to the receiving compartment (430) of the receiving conveyor (4) (third transferring step).
[0026]
Thereafter, when the receiving bucket part (43) reaches the position corresponding to the packaging box (b) held by the box holding means at the side packing position of the receiving conveyor (4), the receiving bucket part (43 ) The goods (a) in the receiving compartment (430) of the number n in the small box are packed in the small box.
<Item 2>
In the above-mentioned item 1, in the case where “the large box packing number N is set to 2”, the small box packing operation for packing one article (a), which is the product of the large box packing number N, into a small box; A large boxing operation for packing individual articles (a) and (a) into a large box can be performed alternatively.
<Item 3>
In the above paragraph 1 or 2, it is possible that “the receiving conveyor (4), the relay device (3) and the intermittent bucket conveyor (2) are driven by a common motor”,
<Item 4>
In the above item 1 or 2, “the receiving conveyor (4) and the intermittent bucket conveyor (2) are driven by a common motor, and the relay device (3) is driven by a servo motor different from the motor. When the relay device (3) is driven by a servo motor, the speed of the relay device (3), the position with respect to the receiving conveyor (4), etc. are controlled by numerically controlling the servo motor. Can be improved.
[0027]
【The invention's effect】
The intermittent bucket conveyor (2) can be driven intermittently at the same speed as when packing a large box. Therefore, the speed V of the intermittent bucket conveyor (2) when packing two large boxes ₂ Speed V when packing a small box _Five Compared with the above-described conventional two, which must be made slower, the number of articles (a) and (a) that can be packed per unit time during large box packaging, that is, the packaging capacity can be improved.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described together with illustrated examples.
[0029]
FIG. 5 is a front view of a boxing apparatus for carrying out the boxing method of the present invention, FIG. 6 is a plan view thereof, and FIG. 7 is a side view thereof.
[0030]
As shown in FIG. 6, the boxing device includes an intermittent bucket conveyor (2), a relay device (3), and a receiving conveyor (4) that run parallel to each other on the main body case (51), and In the vicinity of the upstream end of the intermittent bucket conveyor (2), the front end portion of the upstream conveyor (1) located at the downstream end portion of the pretreatment device (not shown) is opposed.
[0031]
The relay device (3) is incorporated in the movable unit (54), and the movable unit (54), the intermittent bucket conveyor (2), and the receiving conveyor (4) are common drive sources that appear in FIG. It is driven by a servo motor (52).
[0032]
Details of each part will be described below.
[About intermittent bucket conveyor (2)]
As shown in FIG. 6, the intermittent bucket conveyor (2) is hung on the drive shaft (27) and the driven shaft (28), and the intermittent bucket conveyor (2) has partition plates (21) and (21). The relay device (3) is arranged in a state where the articles (a) and (a) are accommodated in the supply bucket portions (23) and (23) between the partition plates (21) and (21). ) Is transferred toward the arrangement portion.
[0033]
A sprocket (29) is attached to one end of the drive shaft (27), and the sprocket (29) is connected to a motion converter (26) disposed in the body case (51). The servomotor (52) is connected to the input portion of the motion converter (26) via a chain (53) in a power transmission state. In place of the combination of the sprocket (29) and the transmission chain (24), a combination of a timing pulley and a timing belt may be employed.
[0034]
The motion converter (26) has a function of converting the continuous rotation of the servo motor (52) into the intermittent traveling operation of the intermittent bucket conveyor (2), and the intermittent bucket conveyor (2) is an upstream conveyor described later. When the article (a) is received from (1), the intermittent bucket conveyor (2) is stopped after traveling for one pitch until the next article (a) supplied from the upstream conveyor (1) is received. This stop state is maintained. This operation controls the rotation amount of the servo motor (52) while monitoring the rotation amount of the servo motor that drives the upstream conveyor (1) provided in the pre-processing device (not shown), and this motion converter ( By 26), the upstream conveyor (1) and the intermittent bucket conveyor (2) are operated synchronously as described above.
[0035]
Further, as shown in FIG. 7, the intermittent bucket conveyor (2) travels above the movable base (55) of the movable unit (54) described later.
[About movable unit (54)]
As shown in FIG. 7, the movable unit (54) traveling on the guide rails (56) (56) laid on the top plate (510) of the main body case (51) has the guide rails (56) (56). The slider (57) (57) traveling on the upper side has a movable base (55) attached to the lower surface. A relay device (3) and a transfer device (6) are disposed on the movable base (55).
[0036]
* Relay device (3)
A rail (50) projects from the movable base (55), and a slider (35) provided on the lower surface of the relay device (3) slides on the rail (50). .
[0037]
On the upper surface of the relay device (3), the relay bucket portion (33) that holds the articles (a) and (a) at the same pitch as the supply bucket portions (23) and (23) between the partition plates (21) and (21). (33) is formed between the spacing holding walls (31) (31), and an output shaft (37) of a cylinder (36) is connected to one end of the relay device (3). The base end of (36) is fixed to the movable base (55) of the movable unit (54) by the support member (30). Therefore, when the output shaft (37) of the cylinder (36) is expanded and contracted, the relay device (3) reciprocates along the rail (50). Therefore, in this case, the combination of the rail (50), the slider (35) that slides on the rail (50), and the cylinder (36) connected to the relay device (3) is a combination of the relay device (3) with respect to the receiving conveyor (4). This is a position correction device for adjusting the relative position.
[0038]
* Transfer device (6)
The transfer device (6) that receives the articles (a) and (a) from the relay device (3) and moves them onto the conveyor (4), etc., has the intermittent bucket conveyor (2) and the intermittent bucket conveyor (2) on the movable base (55). It moves in a direction orthogonal to the traveling direction of the relay device (3).
[0039]
For this reason, on the upper surface of the movable base (55), a pair of parallel rails (61) (61) extending in a direction orthogonal to the moving direction of the relay device (3) and the like are disposed, and the side surface is L-shaped. A slider (62) (62) disposed at the lower end of the support frame (60) is configured to run on the rail (61) (61). The top plate (63) of the support frame (60) is provided with elevating cylinders (66a) (66b) at intervals in the longitudinal direction, and the lower ends of the respective output shafts (67a) (67b). As shown in FIG. 8, the horizontal plate portions (680a) and (680b) of the article extrusion plates (68a) and (68b) are fixed individually. And, from the front edge portion of the article extrusion plate (68a), article extrusion claws (69a) (69a) for pushing the articles (a) (a) forward are bent and suspended, and one of these article extrusion claws ( The article extrusion claws (69b) and (69b) located on both sides of 69a) are bent and suspended from the other article extrusion plate (68b). The article pushing claws (69a), (69a), (69b), and (69b) are arranged at the same intervals as the intervals between the relay bucket portions (33) and (33) formed in the relay device (3). Accordingly, when the output shafts (67a) and (67b) of the elevating cylinders (66a) and (66b) are extended, as shown in FIG. 7, the article pushing claws (69a) and (69b) are moved to the intermittent bucket conveyor (2) and the relay device. (3) While facing the article (a) above, when the output shaft (67a) (67b) is contracted, the article pushing claws (69a) (69b) rise above the intermittent bucket conveyor (2). To do. By operating the lifting cylinders (66a) and (66b) separately, the article pushing claws (69a) and (69a) and the article pushing claws (69b) and (69b) can be raised and lowered individually.
[0040]
On the upper surface of the lower plate (65) connecting the lower ends of the vertical legs (71) (71) located at both ends in the longitudinal direction of the support frame (60) of the transfer device (6), a rack is formed as shown in FIG. (72) is fixed, and the rack (72) meshes with a pinion (76) attached to the output shaft of the pushing servo motor (75) as a pushing drive source.
[0041]
Therefore, when the pinion (76) is rotated by the pushing servo motor (75), the support frame (60) of the transfer device (6) is engaged with the rails (61) (61) by meshing with the rack (72). Move along.
[0042]
* Speed control mechanism (64)
The speed adjusting mechanism (64) for reciprocating the movable unit (54) along the guide rails (56) (56) is a cam connected to the servo motor (52) and the power transmission state by the transmission chain (79). The cam groove (642) formed in the cam plate (641) is provided on the input side of the swing lever (643) that rotates about the fulcrum shaft (59). A pin (645) provided at the end is slidably fitted. The output end of the swing lever (643) is rotatably connected to the projecting arm (58) projecting from one side of the movable base (55) of the movable unit (54) by a connection pin (580). ing.
[0043]
In this device, when the cam plate (641) of the speed adjusting mechanism (64) is continuously rotated by the servo motor (52), the swing lever (643) swings around the fulcrum shaft (59). At this time, due to the shape of the cam groove (642) formed in the cam plate (641) and the structure of the swing lever (643), the movable unit (54) in the direction along the guide rails (56) (56) The traveling speed, that is, the traveling speed of the relay device (3) is the traveling speed V of the receiving conveyor (4) described later. _Four Can be temporarily matched. In addition, by appropriately setting the phase of the receiving conveyor (4) and the servo motor (52) connected to the receiving conveyor (4) and the phase relationship between the servo motor (52) and the cam plate (641), the relay device With the traveling speed of (3) and receiving conveyor (4) matched, one end open part (310) (310) of relay bucket part (33) (33) of relay device (3) and receiving conveyor (4) side The open parts (440) and (440) of the receiving side compartments (430) and (430) of the receiving bucket part (43) are opposed to each other, so that the articles in the relay bucket parts (33) and (33) (a) (a) can be slid into the receiving compartments (430) and (430) and pushed.
[About receiving conveyor (4)]
As shown in FIG. 6, the receiving conveyor (4) is supported by the drive shaft (45) and the support legs (48) and (48) supported by the support legs (47) and (47) on the main body case (51). The sprocket (81) is mounted on the drive shaft (45), and the sprocket (81) is attached to the servo motor (52) as shown in FIG. ) Is connected to a power transmission state via a sprocket (85) fixed to the output shaft (84) and a chain (82).
[0044]
On the upper surface of the receiving conveyor (4), a receiving bucket portion (43) (43) between the bucket walls (41) (41) is formed, and the inside of the receiving bucket (43) (43) is a partition. In this embodiment, two receiving-side compartments (430) and (430) are formed as a large box packing number N.
[Upstream conveyor (1)]
The upstream conveyor (1) of the pretreatment device that supplies articles (a) and (a) to the upstream end of the intermittent bucket conveyor (2) has the conveying pawls (11) and (11) at a predetermined pitch on the surface of the endless belt. The articles (a) and (a) are pushed by the conveying claws (11) and (11) and moved to the supply bucket portions (23) and (23) of the intermittent bucket conveyor (2).
[About boxing operation]
Next, the actual box loading operation is described in the packaging box (b ₁ ) Are divided into operations of a small box stacking operation for packing the articles (a) and (a) in units of one unit and a large boxing operation for packing the articles (a) and (a) in units of two units.
[0045]
* Small boxing work
When the small box packing operation is selected by the packaging amount selection means (S), each part operates as shown in FIG. 9 under the control of a microcomputer incorporated in a control device (not shown).
[0046]
The rotation amount of the servo motor that drives the upstream conveyor (1) of the pretreatment device that supplies the articles (a) and (a) to the intermittent bucket conveyor (2) is monitored by a control device (not shown). When the side conveyor (1) travels by one pitch, the receiving conveyor (4) is controlled to travel by one pitch (the arrangement pitch of the receiving side compartments (430) and (430)).
[0047]
As shown in FIG. 1, each of the upstream conveyor (1) and the receiving conveyor (4) is V ₁ , V _Four The relay device (3) reciprocates at a speed V that changes with time, but the intermittent bucket conveyor (2) ₂ The vehicle runs intermittently after repeating the operation of stopping after traveling.
[0048]
As shown in FIG. 1, when the article (a) conveyed to the downstream end of the upstream conveyor (1) is pushed by the conveyance claw (11) and enters the supply bucket section (23) of the intermittent bucket conveyor (2). The intermittent bucket conveyor (2), which has been stopped until now, is V by one pitch (for the interval between the supply buckets (23) and (23)) by the action of the motion converter (26). ₂ Drive on and stop. If the intermittent operation that repeats running and stopping continues, articles (a) and (a) are individually stored in the supply bucket portions (23) and (23) of the intermittent bucket conveyor (2), and eventually the intermittent bucket conveyor (2) The articles (a) and (a) transferred in (1) face the relay bucket parts (33) and (33) of the relay device (3) (see FIG. 1). Then, as shown in step (ST1) of FIG. 9, the microcomputer of the control device (not shown) determines the facing state (based on the rotation amount of the servo motor (52)), and then in step (ST2). The lifting cylinders (66a) (66b) are extended to lower the article extrusion claws (69a) (69a) (69b) (69b), thereby moving the articles (a) (a) on the intermittent bucket conveyor (2). The product pushing claws (69a), (69a), (69b), and (69b) can be pushed to the relay device (3) side. Next, in step (ST3), the pushing servo motor (75) is driven to move the support frame (60) to an intermediate position of the reciprocating stroke. That is, the four articles (a) and (a) arranged on the intermittent bucket conveyor (2) by the article extrusion claws (69a), (69a), (69b) and (69b) are relayed as shown by the imaginary line in FIG. Transfer to the relay bucket section (33) (33) of the device (3).
Thereby, the first transfer process described above is completed.
[0049]
Next, in step (ST4) in FIG. 9, the lifting cylinder (66a) is contracted to raise the article pushing claws (69a) (69a), thereby the downstream end (the left end in FIG. 1) of the relay device (3). ) Relay bucket part (33) and the upstream side (right side in FIG. 1) of the relay bucket part (33) located next to the article (a) (a) above the articles (a) and (a) 69a) (69a) is evacuated.
[0050]
Next, in step (ST5), when the servo motor (52) is rotated by a predetermined amount, the cam plate (641) is rotated from the origin by a set angle (20 degrees in the present embodiment). The relay buckets (33) and (33) of 3) face the receiving compartments (430) and (430) in the receiving bucket (43) formed on the receiving conveyor (4) at the same speed as these. Run. As described above, the relay bucket section (33) (33) runs at the same speed as the receiving-side compartment (430) (430) facing the cam plate (641) and the swing lever. This is realized by setting the dimensions and structure of (643), the receiving conveyor (4), the phase of the cam plate (641) and the like to predetermined values. At this time, the receiving reference (400) (400) adjacent to the downstream side of the bucket wall (41) and the relay bucket portion at the upstream end (right end in FIG. 1) of the relay device (3). (33) and the relay bucket portion (33) adjacent to it (2) are in a state of facing the receiving side reference (400) (400).
[0051]
Next, in step (ST6), the pushing servo motor (75) is driven to advance the support frame (60) to the final position of the moving stroke. In this case, since the article extruding claws (69a) (69a) are raised above the articles (a) (a), the article extruding claws (69b) (69b) that are descending correspond to the corresponding relay device ( 3) The articles (a) and (a) in the relay bucket portions (33) and (33) are pushed out to the receiving conveyor (4) side, and these are transferred into the receiving side reference (400) and (400) (FIG. 2). (See (a) and (a)). Therefore, in the present embodiment, the relay bucket unit (33) (33) group of the relay device (3) is grouped one by one equal to the number n of small boxes, and the one relay bucket unit (33) The aforementioned relay bucket group (G) is configured. Thereby, in this embodiment, one article as the number of small boxes n is transferred into each receiving bucket section (43) of the receiving conveyor (4), thereby completing the second transferring process described above. To do.
[0052]
Next, in step (ST7), the pushing servo motor (75) is reversely rotated to retract the support frame (60) to the intermediate position described above.
[0053]
Next, in step (ST9), the rotation amount of the servo motor (52) is monitored to monitor the rotation of the cam plate (641) by the set angle (20 degrees in this embodiment) from the above-described origin. At the same time, the cylinder (36) constituting the slide device is extended. When the cylinder (36) is extended, the relay bucket portion (33) (33) is moved upstream by one pitch, thereby the relay bucket portion ((a) (a) containing the article (a) (a). 33) and (33) are newly opposed to the article pushing claws (69b) and (69b).
[0054]
FIG. 3 shows a state where the cylinder (36) is in the extended state and the cam plate (641) is rotated by the set angle. In this state, the relay bucket part (33) (33) corresponding to the article pushing claw (69b) (69b) of the relay device (3) is located on the side of the receiving side reference (400) (400) of the receiving conveyor (4). Opposite the opening. In this embodiment, the operation of moving the relay device (3) to the initial position and extending the cylinder (36) constituting the slide device corresponds to the return movement process of the relay device (3) described above. When the cam plate (641) rotates by the set angle, the relay device (3) receives the conveyor (4) by the action of the cam plate (641) driven by the servo motor (52) and the swing lever (643). ) And run downstream at the same speed. Therefore, in step (ST10), the pushing servo motor (75) is driven to advance the support frame (60) to the final position, thereby the article pushing claws (69b) (69b) corresponding to the relay device ( 3) The articles (a) and (a) above are transferred to the receiving side standards (400) and (400) in the receiving side buckets (43) and (43) of the receiving conveyor (4), respectively. Then, the articles (a) and (a) (see the solid line in FIG. 4) on the relay device (3) corresponding to the article extrusion claws (69b) and (69b) are transferred to the receiving conveyor ( 4) The receiving buckets 43, 43 are transferred one by one equal to the number n of small boxes. Thereby, the receiving buckets (43) and (43) are in a state where the articles (a) and (a) are accommodated in the receiving side reference (400) and (400) of the upstream side adjacent portion of the bucket wall (41), When the receiving side reference (400) (400) reaches the packaging box (b) portion held by the box holding means (8) at the packing position in the traveling area of the receiving conveyor (4), the article is pushed by a pusher (not shown). (a) is a single packing box (b ₁ ) To complete the small boxing operation.
[0055]
Thereafter, in step (ST10), the lifting cylinder (66b) is further contracted to raise the article pushing claws (69b) and (69b), and all the article pushing claws (69a) (69a) (69b) (69b) are raised. In step (ST11), the pushing servo motor (75) is rotated to retract the support frame (60) to the initial position, and the cylinder (36) is contracted, and then the process of step (ST1) Control action is returned to
[0056]
* Large box packing work
When the large box packing operation is selected by the packaging amount selection means (S), each part operates as shown in FIG. 10 under the control of a microcomputer incorporated in a control device (not shown). Then, the articles (a) and (a) in the same order as (a) and (b) of FIG. ₂ ), Each box is packed by a large box number N (two in this embodiment) that is an integer multiple of n = 1.
[0057]
That is, in step (ST21) in FIG. 10, the microcomputer of the control device (not shown) determines the rotation amount of the servo motor (52), and the four supply bucket sections (23) (23) formed on the intermittent bucket conveyor (2) ( It is monitored that the side opening portion of 23) faces the side opening portions of the four relay bucket portions (33), (33) formed in the relay device (3). Next, in step (ST21a), the article extruding claws (69a) (69a) (69b) (69b) are lowered so as to face the articles (a) (a), and in step (ST22) The pushing servo motor (75) is driven to move the support frame (60) to the middle position of the reciprocating stroke. That is, the four articles (a) and (a) arranged on the intermittent bucket conveyor (2) by the article extrusion claws (69a), (69a), (69b) and (69b) are shown in FIG. As indicated by the line, the transfer is transferred to the relay bucket section (33) (33) of the relay apparatus (3). Next, in step (ST23), based on the rotation amount of the servo motor (52), it is monitored that the cam plate (641) rotates by the set angle (20 degrees in the present embodiment) from the aforementioned origin. That is, the receiving side reference (400) located at the upstream adjacent portion of the specific bucket wall (41) formed on the receiving conveyor (4) is the relay bucket portion (33) located at the upstream end of the relay device (3) It is monitored that the relay device (3) and the receiving conveyor (4) are traveling at the same speed in a state opposite to (a state of (b) in FIG. 11). Next, when the pushing servo motor (75) is driven and the support frame (60) is advanced to the final position in step (ST24), four articles (a) on the relay device (3) in FIG. ) (a) is accommodated in the receiving compartments (430) and (430) in the receiving bucket portion (43) of the receiving conveyor (4) as indicated by the phantom line (b).
[0058]
Next, in step (ST24), the article pushing claws (69a) (69a) (69b) (69b) are raised, and in step (ST25), the pushing servo motor (75) is reversed and the support frame (60). Is moved back to the initial position, and then the control operation is returned to (ST21). Then, the receiving side bucket portion (43) (43) between the bucket walls (41) (41) is held in the traveling area of the receiving conveyor (4), and the packing box (b ₂ ) Portion, two articles (a) (a) packed in one receiving bucket (43) are simultaneously packed in a packaging box (b ₂ ).
[0059]
Thus, according to the boxing method of the above-described embodiment, the intermittent bucket conveyor (2) stops at the same speed during both the large boxing operation and the small boxing operation (performs intermittent driving in the same manner). Therefore, the intermittent bucket conveyor (2) can always run at a high speed by operating the servo motor (52) at the capacity limit in both the large boxing operation and the small boxing operation. Therefore, the packaging capacity in the large boxing operation compared to the conventional one, which was necessary to set the traveling speed of the intermittent bucket conveyor (2) during the large boxing operation below the capacity limit of the servo motor (52). Can be increased.
[0060]
In the above embodiment, the operation of packing two articles (a) and (a) (N = 2) is illustrated as a large box packing operation, and one article (a) and (a) is packed (n = 1). Although the operation is illustrated as a small boxing operation, the inside of the receiving bucket portion (43) is divided into four receiving side compartments (430) and (430) equal to the number N of large box packings. Boxing operation) and the item (a) with the number of small boxes (n is excluded from the large box number N) of “one” or “two”, which is the “four” as the large box number N (b ₁ The small boxing operation (small boxing operation) for boxing may be alternatively executed. In this case, one or two receiving side compartments (430) equal to the number n of small boxes packed from the receiving side compartment (430) of the receiving side reference (400) located at the most upstream part in the receiving bucket part (43). Transfer one or two articles (a) (a) from the relay bucket section (33) (33) of the relay device (3) to the initial position as described above. The articles (a) and (a) in the remaining relay buckets (33) and (33) are moved to the new receiving compartments (430) and (430).
[0061]
In the above embodiment, the traveling speed of the relay device (3) can be set by the speed adjusting mechanism (64) including the combination of the cam plate (641) and the swing lever (643). The relay device (3) may be reciprocated by a servo motor or a general-purpose motor provided separately from the above), and the speed of the relay device (3) may be controlled by the motor. When a general-purpose motor is used, it is necessary to incorporate an encoder for judging the rotation amount and rotation speed of the motor.
[0062]
A general-purpose motor may be used instead of the servo motor (52). In this case, the rotation amount and rotation speed of the general-purpose motor are determined by an encoder that is separately easily provided.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an operation explanatory diagram in the case of packing one article (a) (a) with a boxing device illustrating an embodiment of the present invention, and the article (a) (a) on an intermittent bucket conveyor (2). Before moving to the relay device (3)
FIG. 2 is an operation explanatory diagram when one article (a) (a) is packed by a boxing device illustrating an embodiment of the present invention, in which the relay device (3) is downstream in the traveling direction of the receiving conveyor (4). Illustration of traveling to the side
FIG. 3 is an operation explanatory diagram in the case of packing one article (a) (a) with the boxing device illustrating the embodiment of the present invention, and receiving two articles (a) (a) from FIG. 2; Illustration of the relay device (3) retracted to the initial position after being transferred to the conveyor (4)
FIG. 4 is an operation explanatory diagram when one article (a) (a) is packed by the boxing device illustrating the embodiment of the present invention, and the relay device (3) receives the conveyor (4 The figure of the state which is drive | working in the downstream of the running direction of).
FIG. 5 is a partially cutaway front view of a boxing apparatus illustrating an embodiment of the present invention.
FIG. 6 is a plan view of a part of the boxing apparatus illustrating the embodiment of the present invention.
FIG. 7 is a partially cutaway side view of a boxing apparatus illustrating an embodiment of the present invention.
FIG. 8 is a plan view of an arrangement portion of the article extrusion plate (68a) and the article extrusion plate (68b).
FIG. 9 is a flowchart for control when performing a single packing operation in the boxing device according to the embodiment of the present invention.
FIG. 10 is a flowchart for control when performing a two-packing operation in the boxing device according to the embodiment of the present invention.
FIG. 11 is an explanatory diagram of a conventional example.
FIG. 12 is an explanatory diagram of a conventional example.
[Explanation of symbols]
(2) ... Intermittent bucket conveyor (3) ... Relay device
(4) ... Receiving conveyor (6) ... Transfer device
(8) ... Box holding means (23) ... Supply bucket
(33) ・ ・ ・ Relay bucket part (43) ・ ・ ・ Receiving bucket part
(400) ・ ・ ・ Receiving side standard (430) ・ ・ ・ Receiving side compartment
(a) ... articles (G) ... relay bucket group
(S) ... Packing quantity selection means

Claims (4)

An intermittent bucket conveyor (2) in which a plurality of supply bucket parts (23) and (23) for conveying articles in a placed state are arranged at a constant pitch on the outer periphery and intermittently travel,
Relay buckets that are reciprocally moved in parallel to the side of the intermittent bucket conveyor (2) in the running direction and that are an integral multiple of the number of large boxes N that are arranged at the same pitch as the supply buckets (23) and (23). Relay device (3) provided on the top surface with parts (33) and (33),
A plurality of receiving bucket portions (43) (43) (inside) are partitioned into the receiving side compartments (430) (430) of the large box packing number N arranged at the same pitch as each of the relay bucket portions (33) (33). Receiving conveyor (4) arranged on the outer periphery and continuously running in parallel with the relay device (3) on the opposite side of the intermittent bucket conveyor (2);
A box holding means (8) for holding a large box or a small box as packaging boxes of different sizes at the boxing position on the side of the traveling area of the receiving conveyor (4);
A state in which the articles (a) and (a) are transferred from the supply bucket portions (23) and (23) facing each other in a stopped state to the relay bucket portions (33) and (33) and traveling at the same speed. A transfer device (6) for transferring an article from the relay bucket portion (33) opposed to the receiving bucket (43),
All the articles (a) and (a) individually accommodated in the receiving compartments (430) and (430) with the number of large boxes N arranged in the receiving bucket part (43) are stored in the large box. Large boxing operation for packing, and articles (a) arranged in the receiving bucket section (43) and accommodated in the receiving side compartments (430) and (430) of the small box packing number n that is the final number of the large box packing number N ) (a) is a packaging method using a packaging apparatus comprising a packaging amount selection means (S) for alternatively selecting a small boxing operation for packing the small box,
When a large boxing operation is selected by the packaging amount selection means (S), the articles (a) and (a) are simultaneously transferred from the intermittent bucket conveyor (2) to all the relay bucket portions (33) and (33). And changing the articles (a) (a) in all the relay bucket parts (33) (33) to all the receiving compartments (430) (430) in the receiving bucket part (43), In the boxing method of goods,
A specific receiving-side compartment (430) selected from the receiving-side compartments (430) (430) arranged in the receiving bucket section (43) is used as a receiving-side reference (400), and the relay device (3) The relay bucket group (G) is formed by dividing the group of relay buckets (33) and (33) arranged above into groups having the same number of relay buckets (33) as the number of small boxes n. ,
When a small boxing operation is selected by the packaging amount selection means (S),
The articles (a) and (a) are simultaneously transferred from the supply bucket portions (23) and (23) of the intermittent bucket conveyor (2) to all the relay bucket portions (33) and (33) of the relay device (3). A first transfer step;
The number of small boxes packed in which the relay bucket portion (33) of the small number of packing boxes n constituting the relay bucket group (G) includes the receiving side compartment (430) of the receiving side reference (400) of the receiving bucket portion (43) When facing the n receiving side compartments (430) while traveling at the same speed, the articles (a) in the facing relay bucket portions (33) are placed in the facing n compartments of the facing small boxes. (430) a second transfer process for transferring to each separately;
Other relay bucket groups following the relay bucket group (G) emptied in the second transfer step while returning the relay device (3) to the initial position direction before the execution of the second transfer step The receiving side reference (400) located at the further upstream side of the uppermost article (a) in which the relay bucket part (33) with a small number of small boxes forming (G) is transferred to the receiving conveyor (4). A return movement step of adjusting the position of the relay device (3) so as to oppose the receiving side compartment (430) of the number n of small boxes packed including the receiving side compartment (430) of
Articles in each relay bucket section (33) facing the receiving compartment (430) with a small number of small boxes n including the receiving compartment (430) of the receiving reference (400) by executing the return movement step ( A method for packaging articles, in which a) a third transfer step of transferring a) to each of the opposing receiving compartments (430). The method of boxing goods according to claim 1.
A packaging method for articles, wherein the large box packing number N is set to 2. In the boxing method of the article according to claim 1 or 2,
The boxing method for articles, wherein the receiving conveyor (4), the relay device (3) and the intermittent bucket conveyor (2) are driven by a common motor. In the boxing method of the article according to claim 1 or 2,
The article packing method, wherein the receiving conveyor (4) and the intermittent bucket conveyor (2) are driven by a common motor, and the relay device (3) is driven by a servo motor different from the motor.

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