JPH05132011A - Device for feeding goods to packing case - Google Patents

Abstract

PURPOSE:To improve utility by a method wherein, by using a differential mechanism, respective states of a positioning part of a packing case transfer device or a goods transfer device, a pushing member of a goods pushing device and a receiving part of a goods receiving device can be changed corresponding to a width of a packing case. CONSTITUTION:A goods feeding device has a packing case transfer device B in which a plurality of transfer parts 28 and 30 and a plurality of sandwiching parts 27 and 29 are provided at an equal interval respectively on a pair of endless rotary cables 24, 26 and 23, 25, and further, goods transfer devices C1 and C2 are arranged in parallel along one side of a goods feeding area S. Goods on the goods transfer devices C1 and C2 are pushed by a goods pushing device D into a packing case on the packing case transfer device B. The goods in the packing case are supported by a receiving part 74 of a goods receiving device E. In the case that a width of the packing case changes, at a positioning part of the respective devices B, C1 and C2, the sandwiching parts 27, 29, 50 and 40 are brought into or out of contact with the transfer parts 28, 30, 51 and 41 by the effect of a differential mechanism in a driving mechanism.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a packaging machine in which an article is supplied into a packaging case in which a mouth is provided in a tubular case body, and then the flap is folded and closed at the mouth. The present invention relates to a device for supplying an article from the mouth of a packaging case while it is being transported.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
In this type of packaging machine, while the packaging case is moved by the packaging case transport device, the articles are fed into the packaging case by the article pushing device while moving in the same direction as the transport direction of the packaging case by the article transport device. It is like this.

In this case, when the size of the packaging case (for example, the width of the case body along the transport direction) is changed, the packaging case positioning portion in the packaging case transporting device, the article positioning portion in the article transporting device, and the pushing member in the article pushing device are changed. Although it is necessary to change the state, the present invention aims to provide a device for supplying an article to a packaging case, which can easily change the state according to the size of the packaging case by using a differential mechanism. There is.

[0004]

An apparatus for supplying articles to a packaging case according to the present invention, as shown in the drawings of an embodiment described later, has a packaging case carrier B and an article supplying area of the packaging case carrier B. The article conveying devices C1 and C2 are provided side by side along one side of S, and the article pushing device D for pushing the articles 187 on the article conveying devices C1 and C2 into the packaging case 1 on the packaging case conveying device B. ing.

In the packaging case carrier B, a pair of endless rotary cords 23, 25, 24, 2 arranged in parallel with each other.
Among the six, the plurality of transport portions 28, 30 are attached to the first endless rotary ropes 24, 26 at equal intervals, and the plurality of holding portions 27, 29 are attached to the second endless rotary ropes 23, 25. Attaching them at equal intervals, the carrying parts 28, 30 and the holding parts 27, 29
A set of packaging case positioning portions 31 consisting of and are arranged along the conveying direction P by a plurality of sets of endless rotary cords 23, 25, 24, 26.

In the article transporting devices C1 and C2,
A pair of endless rotary ropes 38, 48, 39, arranged side by side,
Of the 49, a plurality of transfer parts 41, 51 are attached to the first endless rotary ropes 39, 49 at equal intervals so as to correspond to the transfer parts 28, 30 of the packaging case transfer device B. Corresponding to the respective sandwiching portions 27, 29 of the packaging case transporting device B, a plurality of sandwiching portions 40, 50 are attached to the endless rotary ropes 38, 48 at equal intervals, and sandwiched between these transporting portions 41, 51. A pair of article positioning portions 42 and 52 including the portions 40 and 50
Are arranged along the conveyance direction P by a plurality of sets of endless rotary ropes 38, 48, 39, 49.

In the packaging case transport device B and the article transport devices C1 and C2, the first endless rotary ropes 24 and 2 are used.
6, 39, 49 are interlocked with the drive means 122, and the second endless rotary ropes 23, 25, 38, 48 are interlocked with the drive means 122 via the first differential mechanism 144. The rotation of the output shaft 143 of the differential mechanism 144 is transmitted to the second endless rotary ropes 23, 25, 38, 48 so that the rotation of the output shaft 143 can be adjusted with respect to the first differential mechanism 144. The rotation adjusting means 155 is interlocked with.

In the article pushing device D, a plurality of pushing members 67 are attached to the endless rotary ropes 58 and 63 at equal intervals, and the driving means 122 is attached to the second endless rotary ropes 58 and 63 at the second position. The rotation of the output shaft 149 of the second differential mechanism 150 is transmitted to the endless rotary ropes 58 and 63 by being interlocked with each other via the differential mechanism 150, and the output shaft of the second differential mechanism 150 is output from the output shaft 149. The rotation adjusting means 155 is interlocked so that the rotation of 149 can be adjusted.

Further, one of the both sides of the article supply area S of the packaging case transporting apparatus B is one of the article supply apparatuses C1,
Article receiving devices E are arranged in parallel on the side opposite to C2. In this article receiving device E, a plurality of receiving portions 74 are attached to the endless rotary rope 72 at equal intervals, and the drive means 122 is attached to the endless rotary rope 72 via the second differential mechanism 150. In conjunction with this, the rotation of the output shaft 149 of the second differential mechanism 150 is transmitted to the endless rotary rope 72, and the second differential mechanism 1
The rotation adjusting means 155 is interlocked with 50 so that the rotation of the output shaft 149 can be adjusted.

In the packaging case transporting device B and the article transporting devices C1 and C2, the rotation of the rotation adjusting means 155 is transmitted to the first differential mechanism 144 and the first endless rotary ropes 24 and 2 are transmitted.
Second endless rotary ropes 23, 25, 38, 48 that move relative to the transport units 28, 30, 41, 51 on 6, 39, 49.
X is the movement adjustment distance of the upper holding parts 27, 29, 40, 50.
Then, in the article pushing device D and the article receiving device E, the rotation of the rotation adjusting means 155 is transmitted to the second differential mechanism 150, and the same direction P as that of each of the holding portions 27, 29, 40, 50.
Pushing members 6 on the endless rotary ropes 58, 63 that move to
7 and the movement adjustment distance of each receiving portion 74 on the endless rotary rope 72 are set to be approximately X / 2.

In the article pushing device D, the same number of rotation fulcrums 64 and 65 are attached to a pair of endless rotary ropes 58 and 63 having the same length at equal intervals, and both are adjacent to each other. Rotational fulcrums 64, 65 of the endless rotary ropes 58, 63
A link 66 is installed between them, and a pushing member 67 is attached to this link 66.
On the article transporting devices C1 and C2 corresponding to the article feeding region S, the pair of endless rotary ropes 58 and 63 are arranged in parallel with each other and inclined with respect to the transporting direction P of the article transporting devices C1 and C2. The distances Q and R between the two opposite sides of the quadrangle formed by connecting the centers of the respective pivot fulcrums 64 and 65 between the two pushing members 67 adjacent to each other are made equal.

[0012]

The packaging case 1 is placed and transported between the transporting portions 28 and 30 and the sandwiching portions 27 and 29 by the positioning portions 31 of the packaging case transporting device B. Article 18
7 is placed between the transporting parts 51 and 41 and the sandwiching parts 50 and 40 by the respective positioning parts 52 and 42 of the article transporting devices C ₁ and C ₂ and transported in the same direction P as the packaging case 1.

In the course of transferring them, in the article pushing device D, the pushing member 67 of the article pushing device 67 has the article conveying devices C ₁ and C.
While moving in the article conveyance direction P on the _second positioning portions 52 and 42, it also moves in the direction orthogonal to the article conveyance direction P at the same time. Therefore, the article 187 is pushed by the pushing member 67 and is supplied into the packaging case 1.

At this time, in the article receiving device E, the receiving portion 74 thereof can abut the article 187 in the packaging case 1.
When the width W of the packaging case 1 changes, the first differential mechanism 144 and the rotation adjusting means 155 operate in the drive mechanism G, and the positioning portions of the packaging case transport device B and the article transport devices C ₁ and C ₂ are positioned. Clamping portions 27, 2 at 31, 52, 42
9, 50, 40 are set close to and separated from the transport units 28, 30, 30, 51, 41, and set according to the width W of the packaging case 1.

In the article pushing device D and the article receiving device E, the second differential mechanism 150 and the rotation adjusting means 155 work in the drive mechanism G to operate the pushing member 67 and the receiving portion 74.
Is the movement adjustment distance X of the sandwiching portions 27, 29, 50, 40.
Of the positioning portions 31, 52, 4
Located in the center of 2.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a packaging case 1 used in the packaging machine of the present embodiment is made of plastic, and a case body 2 having an opening 3 on both left and right sides in an opened state is a top wall 2a, a front wall 2b, and a bottom wall 2b. The wall 2c and the rear wall 2d form a rectangular parallelepiped shape, and fold lines 4, 5, are provided between the walls 2a, 2b, 2c, 2d.
6 and 7 are formed between the left and right mouth portions 3. Inner flaps 8 are integrally formed on both front and rear walls 2b and 2d at both mouths 3 with folding lines 9 interposed therebetween.
Extend so as to be flush with the front and rear walls 2b, 2d. Further, the outer flaps 10 are integrally formed on the upper wall 2a of both the mouth portions 3 via folding lines 11, and each of the outer flaps 10 extends so as to be flush with the upper wall 2a.

Before packaging, such a packaging case 1 is folded flat along the folding lines 5 and 7 of a part of the case body 2, and is stored in a packaging case opening device A shown by an imaginary line in FIG. Is becoming The packaging case 1 is opened in the state shown in FIG.
It is designed to be placed on top.

First, the packaging case conveying device B will be described in detail. As shown in FIGS. 2 and 6, in the support shaft 13 attached to the rear end of the machine frame 12a, a pair of driven side sprockets 14 and 15 and driven side sprockets 16 and 17 are provided on both left and right sides along the axial direction. Installed. Both left side sprockets 14 and 15 are rotatably supported on the support shaft 13 and movable in the axial direction of the support shaft 13. The right sprockets 16 and 17 are rotatably supported by the support shaft 13 so as not to move in the axial direction of the support shaft 13. On the other hand, in the rotary drive shaft 18 supported by the front end of the machine frame 12a, a pair of drive side sprockets 19 and 2 are provided on both left and right sides along the axial direction.
0 and drive side sprockets 21 and 22 are attached. Both sprockets 19 and 20 on the left side are rotary drive shafts 18.
Is supported so as to be integrally rotatable and movable in the axial direction of the rotary drive shaft 18. Further, both the right sprockets 21 and 22 are supported so as to be integrally rotatable with respect to the rotary drive shaft 18, and are prevented from moving in the axial direction of the rotary drive shaft 18. Then, each sprocket 14, 1 on the driven side
5,16,17 and each sprocket on the driving side 19,20,
A pair of transport chains 23, 24, 25, 26 as endless rotary ropes are wound in parallel with each other on the left and right sides between the two and 21, 22.

As shown in FIG. 2, FIG. 3 and FIG. 5, among the respective transport chains 23, 24, 25, 26, a plurality of transport portions 28, 30 are equally spaced on both inner transport chains 24, 26. In addition, the outer transport chains 23, 25 are provided with the same number of gripping portions 27, 29 as the transport portions 28, 30 at equal distances in front of the transport portions 28, 30. A pair of packaging case positioning parts 31 are attached by the carrying parts 28 and 30 and the holding parts 27 and 29.
Has become.

Next, the article conveying devices C1 and C2 will be described in detail. As shown in FIG. 2, in the article supply region S at the rear of the packaging case transport device B, a first article transport device C1 is arranged in parallel along the right side thereof. In the first article transporting device C1, a pair of driven side sprockets 33 is attached to the support shaft 32 attached to the machine frame 12a at the rear side of the area S.
34 is rotatably supported, and a pair of drive-side sprockets 36, 37 are integrally rotatably supported on a rotary drive shaft 35 supported by the machine frame 12a on the front side of the region S, and both driven side sprockets are supported. Between the sprockets 33 and 34 and the drive-side sprockets 36 and 37, transport chains 38 and 39 as endless rotary ropes are wound in parallel with each other. A plurality of transport units 41 are attached to one transport chain 39 at equal intervals, and the same number of holding units 4 as the transport units 41 are attached to the other transport chain 38.
0s are attached to the conveyance unit 41 at positions apart from each other at the front side at equal intervals, and the conveyance unit 41 and the holding unit 40 form a set of article positioning units 42.

A second article conveying device C2 is provided adjacent to the right side of the first article conveying device C1, and the second article conveying device C2 is rearward from the rear end side of the first article conveying device C1. Has been extended to. In the second article transporting device C2, a pair of driven side sprockets 44 and 45 are rotatably supported by a spindle 43 attached to the rear end of the machine frame 12b, and at the same time, A pair of drive-side sprockets 46, 4 with respect to the rotary drive shaft 35 at the front end
7 is rotatably supported integrally, and a transport chain 48, which is an endless rotary rope, is provided between the driven-side sprockets 44 and 45 and the drive-side sprockets 46 and 47, respectively.
49 are wound parallel to each other. A plurality of transport units 51 are attached to one transport chain 49 at equal intervals, and the same number of gripping units 50 as the transport units 51 are separated from the transport unit 51 to the front of the other transport chain 48. They are attached at regular intervals in this position, and the carrying section 51 and the holding section 5 are attached.
With 0, a set of article positioning parts 52 is formed.

The carrying direction P in the packaging case carrying device B and the carrying direction P in the first and second article supplying devices C1 and C2 coincide with each other, and both of the packaging case positioning portions 31 in the packaging case carrying device B are provided. Transport unit 28,
With respect to 30, the transport portions 41 and 51 of the article positioning portions 42 and 52 in the first and second article transporting devices C1 and C2 are arranged side by side on a straight line orthogonal to their transport direction P, and this packaging With respect to both holding parts 27, 29 of the case positioning part 31, these article positioning parts 42, 52
The holding portions 40 and 50 are also arranged in parallel on a straight line orthogonal to the conveying direction P thereof.

Next, the article pushing device D will be described in detail. As shown in FIG. 2, corresponding to the article supply area S of the packaging case carrier B, the first and second article carriers C1,
An article pushing device D is provided above C2. In this article pushing device D, a set of sprockets 54, 55, 5 supported on the lower side of the support plate 53 shown in FIG.
The upper pushing chain 58 as an endless rotary rope is wound around 6, 57, and the supporting plate 53 is also provided.
Each sprocket 59, 60, 61 supported on the lower side of
62 has a lower pushing chain 63 as an endless rotary rope.
Is wound around the upper push-in chain 58, and the lower push-in chain 63 is shifted in parallel to the upper push-in chain 58 toward the packaging case carrier B side. The length of the upper pushing chain 58 and the length of the lower pushing chain 63 are equal to each other.
A plurality of rotation fulcrums 64 are attached to the lower pushing chain 63 at the same intervals, and the same number of rotation fulcrums 65 as the rotation fulcrums 64 are attached to the lower pushing chain 63. There is. A link 66 is provided between the adjacent rotation fulcrums 64, 65 of the rotation fulcrums 64 of the upper pushing chain 58 and the rotation fulcrums 65 of the lower pushing chain 63, and the links 66 are provided on the links 66. An L-shaped pushing member 67 is fixed and extends toward the packaging case carrier B.

Upper and lower sprockets 54, 59 (see FIG. 3) located closest to the packaging case carrier B;
The upper pushing chain 58 and the lower pushing chain 63, which are wound between the upper and lower sprockets 57 and 62 located behind the upper pushing chain 58 and the lower pushing chain 63, are parallel to each other, and are in the packaging case conveying device B or the article conveying device C1. It is inclined with respect to the conveyance direction P of C2. Also, the upper and lower sprockets 54, 5
9 and the upper and lower sprockets 55 in front of it,
Upper push chain 58 wound between 60
And the lower push chain 63 are also parallel to each other,
It is inclined with respect to the conveyance direction P. In both pushing members 67 adjacent to each other, the distance R between the two turning fulcrums 64, 64 of the upper pushing chain 58 and the distance R between the two turning fulcrums 65, 65 of the lower pushing chain 63 are set. Are equal to each other and each link 6
6, the distance Q between the two rotation fulcrums 64 and 65 is also equal to each other, and in particular, in the upper and lower push chains 58 and 63 facing the packaging case conveying device B, the respective rotation fulcrums 6 are provided.
The shape connecting 4, 65 always forms a parallelogram.

Therefore, when the pushing members 67 are on the article conveying devices C1 and C2, the pushing chains 58 and 6 on the upper and lower sides, respectively.
Each sprocket 54, 59, 57, 62 with the rotation of 3
Between the sprocket 54, 59, 55, and 60, and gradually move away from the packaging case carrier B. In that case, the article transport device C
Even if the article positioning parts 42 and 52 of C1 and C2 move in the carrying direction P, the pushing members 67 follow the moving parts in the carrying direction P and simultaneously move in the direction orthogonal to the carrying direction P. Move within 42, 52.

Next, the article receiving device E will be described in detail.
As shown in FIG. 2, the article receiving devices E are arranged side by side on the opposite side of the first article conveying device C1 on the left and right sides of the article supply region S of the packaging case conveying device B. In this article receiving device E, the driven side sprocket 69 is rotatably supported by the support shaft 68 attached to the machine frame 12a at the rear side of the article supply area S, and at the front side of the area S. A sprocket 71 on the drive side is integrally rotatably supported on a rotary drive shaft 70 supported by the machine frame 12a, and a receiving chain 7 as an endless rotary rope is provided between the two sprockets 71.
2 is wound around the sprocket 73 (see FIG. 5). The receiving chain 72 extends parallel to and adjacent to the conveying chains 23 and 24 of the packaging case conveying device B, and a plurality of receiving portions 74 are attached to the receiving chain 72 at equal intervals. Each receiving portion 74 is adjacent to the packaging case positioning portion 31 of the packaging case transporting device B, and the holding portion 2 thereof is provided.
It can be located in the center between 7 and the transport unit 28.

As shown in FIGS. 2 and 4, the rotary drive shaft 70 is connected to the sprocket 54 of the article pushing device D,
59, bevel gear 75, bevel gear 76, rotating shaft 77, sprocket 78, chain 79 and both sprockets 80,
It is adapted to be transmitted via 81.

Next, the packaging case length adjusting mechanism F of the packaging case carrier B shown in FIGS. 6 and 7 will be described in detail. Adjacent to the support shaft 13 and the rotation drive shaft 18 of the packaging case transport device B and the rotation drive shaft 70 of the article receiving device E, male screw rods 82, 83, 84 are rotatably supported with respect to the machine frame 12a. Brackets 85, 86 and 87 are screwed onto the male screw rods 82, 83 and 84, respectively.

In the packaging case carrier B, the bracket 85 on the male screw rod 82 is connected to both the sprockets 14 and 15 on the support shaft 13, and the bracket 86 on the male screw rod 83 is mounted on the rotary drive shaft 18. The brackets 85 and 86 are connected to the sprockets 19 and 20, and the brackets 85 and 86 are connected to each other by a carrier chain receiving rail (not shown). In the article receiving device E, the male screw rod 84
The upper bracket 87 is connected to the sprocket 71 on the rotary drive shaft 70, the bracket 88 is connected to the sprocket 69 on the support shaft 68, and the bracket 88 is connected to the carrier chain receiving rail between the brackets 85 and 86 described above. Brackets 87 and 88 are attached. The sprocket 73 (see FIG. 5) around which the receiving chain 72 is wound is supported on the bracket 87.

A packaging case length adjusting motor 89 is installed in the machine frame 12a. One of the sprockets 90, 91 on the output shaft 89a is rotated so that the sprocket 90 rotates inside the machine frame 12a.
2, transmitted to the sprocket 95 via the sprocket 93 and the chain 94, and further outside the machine frame 12a, the sprocket 96, the sprocket 97, the sprocket 98,
Sprocket 103 on male screw rod 82 and sprocket 1 on male screw rod 84 via sprocket 99, sprocket 100, sprocket 101 and chain 102
It will be transmitted to 04. Also, the output shaft 89a
The rotation of the other upper sprocket 91 is transmitted to the sprocket 106a via the chain 105 on the outside of the machine casing 12a, and the sprocket 106b coaxial with the sprocket 106, the sprocket 107, the sprocket 109, the sprocket 110, and the sprocket 11 are rotated.
1, the sprocket 112, the sprocket 113, the sprocket 114 and the chain 115, and the male screw rod 83.
It is adapted to be transmitted to the upper sprocket 116.

A potentiometer 118 is attached to a bracket 117 on the machine frame 12a near the output shaft 89a of the packaging case length adjusting motor 89, and the rotation of the output shaft 89a is transmitted via gears 119 and 120. To be transmitted to. The potentiometer 118 is connected to a controller 121, and the controller 121 controls the motor 89 based on an input signal from the potentiometer 118.

Next, the respective devices B and C shown in FIGS.
The drive mechanisms G of 1, C2, D and E will be described in detail together with a packaging case width adjusting mechanism which is a part thereof. The drive motor 122 is installed in the machine casing 12a. The output shaft 122a
Is transmitted to the rotary shaft 126 via the sprocket 123, the chain 124, and the sprocket 125, and one of the sprockets 127 and 128 on the rotary shaft 126 outside the machine frame 12a.
8, the chain 129, and the sprocket 130 are transmitted to the rotary drive shaft 18 of the packaging case carrier B. Further, the rotation of the output shaft 122a is controlled by the machine frame 1
It is adapted to be transmitted to the rotary drive shaft 35 of the article conveying devices C1 and C2 via the other sprocket 127 on the rotary shaft 126, the chain 131 and the sprocket 132 on the outer side of 2a.

Rotational drive shaft 1 of the packaging case carrier B
A control rotary shaft 133 is supported by the machine frame 12a adjacent to the control shaft 8. The sprocket 21 rotatably supported by the rotary drive shaft 18 is adjacent to the sprocket 21 and the gear 13 is coaxially provided on the sprocket 21.
4 is connected to the sprocket 21 so as to rotate integrally therewith, and the gear 13 is attached to the control rotary shaft 133.
5 is rotatably supported integrally, and both gears 134, 13
5 are meshed with each other. Also, this rotary drive shaft 1
The gear 136 is connected to the sprocket 19 adjacent to the sprocket 19 rotatably supported with respect to 8 on the coaxial 18, and the gear 137 is rotatably supported integrally with the control rotary shaft 133. Both gears 13
6, 137 are meshed with each other. Bracket 8
Both sprockets 19, 2 on the rotary drive shaft 18 in 6
0 and the gear 136 and the gear 137 on the control rotary shaft 133.
Is movable along with the bracket 86 along both the shafts 18, 133.

As shown in FIG. 2, the article carrying device C
A control rotary shaft 138 is supported by the machine casing 12a adjacent to the rotary drive shafts 35 of C1 and C2. Both article carrier C
1 and C2, a gear 139 and a gear 140 are integrally rotatably supported on the rotary drive shaft 35, and a gear 141 and a gear 142 are also rotatably supported on the control rotary shaft 138. Both gears 13
9, 141 and both gears 140, 142 mesh with each other.

A first differential gear mechanism 144 is provided on the output shaft 143 supported in the machine frame 12a. In this differential gear mechanism 144, bevel gears 146 are rotatably supported at both ends of a connecting shaft 145 inserted into the coaxial shaft 143 so as to be orthogonal to the axial direction of the output shaft 143. Bevel gears 147 and 148 are rotatably supported on both sides of the output shaft 143 and meshed with both bevel gears 146 on the connecting shaft 145.

An output shaft 149 is supported in the machine frame 12a adjacent to the first differential gear mechanism 144, and a second differential gear mechanism 150 is provided on the output shaft 149. In the differential gear mechanism 150, the output shaft 149
The bevel gears 152 are rotatably supported at both ends of the connecting shaft 151 inserted into the coaxial shaft 149 so as to be orthogonal to the axial direction of the output shaft 14 on both sides of the connecting shaft 151.
Bevel gears 153 and 154 are rotatably supported on the shaft 9, respectively, and are meshed with both bevel gears 152 on the connecting shaft 151.

Adjacent to the second differential gear mechanism 150, a packaging case width adjusting motor 155 is installed as a rotation adjusting means in the machine frame 12a. Second differential gear mechanism 1
At 50, a pair of sprockets 1 are attached to the output shaft 149 thereof.
56 and 157 are rotatably supported and integrally rotatably connected to the bevel gear 154. The rotation of the output shaft 155a of the motor 155 is transmitted to the sprocket 156 via the sprocket 158 and the chain 159. In the first differential gear mechanism 144, a sprocket 160 is rotatably supported on an output shaft 143 thereof and is integrally rotatably connected to a bevel gear 148. The rotation of the output shaft 155a of the motor 155 causes the sprocket 158, the chain 159, and the sprocket 15 to rotate.
6, it is transmitted to the sprocket 160 via the sprocket 157 and the chain 161.

In the first differential gear mechanism 144, a sprocket 162 is rotatably supported on an output shaft 143 thereof and is integrally rotatably connected to a bevel gear 147.
In addition, in the second differential gear mechanism 150, the rotary shaft 14
A sprocket 163 is rotatably supported on the shaft 9, and is integrally rotatably connected to the bevel gear 153. A pair of sprockets 164 and 165 are supported integrally on a rotary shaft 126 to which the rotation of the drive motor 122 is transmitted, and the rotation of one of the sprockets 164 is a chain 166.
Through the first differential gear mechanism 144 side sprocket 1
The rotation of the other sprocket 165 is transmitted to the sprocket 163 on the side of the second differential gear mechanism 150 via the chain 167.

Output shaft 143 of the first differential gear mechanism 144
A rotary shaft 168 is supported above the machine frame 12a, and the rotation of the output shaft 143 is transmitted to the rotary shaft 168 via a pair of gears 169a and 169b. A pair of sprockets 170 and 171 are integrally rotatably supported on the rotary shaft 168 outside the machine frame 12a. The machine frame 12 is attached to the control rotary shaft 133 at the front end of the machine frame 12a.
A sprocket 172 is integrally rotatably supported on the outside of a, and both sprockets 170, 17 on the rotary shaft 168 are supported.
The rotation of one of the sprockets 170 is the chain 1
It is adapted to be transmitted to the sprocket 172 via 73. The sprocket 1 is provided outside the machine frame 12a on the control rotary shaft 138 of the article transporting devices C1 and C2.
74 is rotatably supported integrally, and the rotation of the other sprocket 171 on the rotary shaft 168 is transmitted to the sprocket 174 via a chain 175.

Output shaft 149 of second differential gear mechanism 150
2, a sprocket 176 is integrally rotatably supported, and as shown in FIG. 2, a sprocket 177 is integrally rotatably supported on the rotary drive shafts 70 of the article pushing device D and the article receiving device E. The rotation of the sprocket 176 causes rotation of the sprocket 1 via the chain 178.
It is transmitted to 77.

The rotary drive shaft 18 at the front end of the machine casing 12a
Also, encoders 181 and 182 are attached to both brackets 179 and 180 on the outside of the machine frame 12a in the vicinity of the control rotation shaft 133, respectively, and rotation of the rotary drive shaft 18 is performed via both gears 183 and 184 to one encoder 181.
The rotation of the control rotary shaft 133 is transmitted to the other encoder 182 via both gears 185 and 186. Both encoders 181 and 182 are connected to the controller 121, and the controller 121
The packaging case width adjusting motor 155 is controlled on the basis of an input signal from 182.

Although not shown, a device for folding the inner flap 8 of the packaging case 1 and a device for folding the outer flap 10 of the packaging case 1 are sequentially provided on the front portion of the machine frame 12a. Has been.

Next, the operation of the packaging machine thus constructed will be described in detail. First, the respective devices B, C1, C2, D and E are adjusted according to the size of the packaging case 1 shown in FIG.

As shown in FIG. 6, when a signal relating to the length L of the case main body 2 is input to the controller 121, the rotation of the packaging case length adjusting motor 89 causes the chain 94 and the chain 102 to move to the rear of the packaging case conveying device B. Is transmitted to the male screw rod 82 on the side and the male screw rod 84 of the article receiving device E, and is also transmitted to the male screw rod 83 on the front side of the packaging case transporting device B by the chain 105 and the chain 115, so that the brackets 85, 86, 87 are respectively. Male screw rod 82,
Move along 84, 83. Along with the movement, in the packaging case carrier B, both sprockets 14 and 15 in the bracket 85 on the male screw rod 82 on the rear side are supported by the spindle 13.
The sprocket 19 and 20 and the gears 136 and 137 in the bracket 86 on the male screw rod 83 on the front side are moved by the rotary drive shaft 18 and the control rotary shaft 13.
Move along 3. Further, in the article receiving device E,
Sprocket 71 in bracket 87 on male threaded rod 84
And the sprocket 69 in the bracket 88 move together with the sprocket 73 on the bracket 87 along the rotary drive shaft 70 and the support shaft 69, respectively.

Then, the adjusting motor 89 for the length of the packaging case
The detection signal is input to the controller 121 from the potentiometer 118 that detects the rotation of the. When this input signal matches the stored data based on the length L of the case body 2, the controller 121 stops the packaging case length adjusting motor 89. Therefore, as shown in FIG. 3, the gripping portion 27 and the conveying portion 28 on the two conveying chains 23 and 24 are the same as the gripping portion 29 and the conveying portion 3 on the both conveying chains 25 and 26.
The two holding parts 27, 29 and the two carrying parts 28, 30 are set to match the length L of the case body 2 in each packaging case positioning part 31.

On the other hand, the rotation of the drive motor 122 is controlled by the chain 124 and the chain 129 by the packaging case conveying device B.
Is transmitted to the rotary drive shaft 18 of the two inner transport chains 2
4, 26 rotate. The rotation of the drive motor 122 is transmitted through the chain 124, the chain 166, and the bevel gears 147 and 146 of the first differential gear mechanism 144 to the output shaft 143.
Is transmitted to the control rotary shaft 133 via the chain 173. The rotation of the rotating shaft 133 is transmitted to the sprockets 21 and 19 via the gears 135, 137, 134 and 136, so that both outer transport chains 23 and 2 are conveyed.
5 rotates.

As shown in FIG. 8, when a signal (width change size) relating to the width W of the case body 2 is input to the controller 121, the rotation of the packaging case width adjusting motor 155 causes the chain 159, the chain 161, and the first case to rotate. Differential gear mechanism 1
It is transmitted to the output shaft 143 via 44 bevel gears 148 and 146. In this case, the output shaft 1 that rotates in conjunction with the drive motor 122 by the action of the first differential gear mechanism 144
Since the rotation speed of 43 changes according to the rotation speed of the packaging case width adjusting motor 155, the outer transport chains 23, 25 are opposed to the inner transport chains 24, 26 which are rotated only by the drive motor 122. Rotate.

The rotations of the rotary drive shaft 18 and the control rotary shaft 133 are transmitted to the encoders 181 and 182, respectively, and their detection signals are input to the controller 121. When the difference between the detection data of both encoders 181 and 182 and the stored data based on the width W of the case body 2 match, the controller 121 determines that the packaging case width adjusting motor 1
Stop 55. Therefore, as shown in FIG. 3, the holding parts 27, 29 on the outer transfer chains 23, 25 approach and separate from the transfer parts 28, 30 on the inner transfer chains 24, 26, respectively. In the positioning part 31, both the holding parts 27, 29 and the two carrying parts 28, 30 are set according to the width W of the case body 2.

The rotation of the drive motor 122 is determined by the rotation of the chain 1.
24 and the chain 131 are transmitted to the rotary drive shafts 35 of the first and second article conveying devices C1 and C2, and as shown in FIG. 2, the chain 39 of the first article conveying device C1 and the second article conveying device. The chain 49 of the device C2 rotates. The rotation of the output shaft 143 of the first differential gear mechanism 144 described above is transmitted to the control rotary shaft 138 of the first and second article transporting devices C1 and C2 via the chain 175, and further the gears 141, 142, and It is transmitted to the sprockets 36, 46 on the rotary drive shaft 35 via 139, 140 to rotate the transport chain 38 of the first article transport device C1 and the transport chain 48 of the second article transport device C2. In both of the article transporting devices C1 and C2, the first differential gear mechanism 14 is also provided.
By the function of 4, the article positioning units 42 and 52 are used to transport the transporting unit 4 as in the case of the packaging case transporting device B described above.
The holding parts 40, 50 approach and separate from the 1, 51, and as shown in FIG. 3, the holding parts 40, 50 correspond to the width W of the case body 2.
50 is set so as to follow both the holding parts 27 and 29 of the packaging case carrier B.

The drive motor 122 is rotated by the chain 12
4, the chain 167 and the bevel gears 153 and 152 of the second differential gear mechanism 150 are transmitted to the output shaft 149, and the article pushing device D and the article receiving device E are rotationally driven via the sprocket 176 and the chain 178. The upper and lower pushing chains 5 of the article pushing device D transmitted to the shaft 70.
8, 63 and the receiving chain 72 of the article receiving device E rotate. The rotation of the packaging case width adjusting motor 155 rotates the chain 159 and the bevel gear 15 of the second differential gear mechanism 150.
Since it is transmitted to the output shaft 149 via 4, 152, the rotation speed of the output shaft 149 changes as compared with the case of rotating only by the drive motor 122.

Therefore, the holding section 2 of the packaging case carrier B
7, 29 and each of the pushing members 67 of the article pushing device D and the receiving portions of the article receiving device E, where X is the movement adjustment distance of the holding portions 40, 50 of the first and second article conveying devices C1 and C2. 74 holds each of the gripping portions 27, 29 on the article positioning portions 42, 52 of the article transporting devices C1, C2 and near the packaging case positioning portion 31 of the packaging case transporting device B.
40, 50 is moved in a direction parallel to the moving direction P by almost half of this distance X, and as shown in FIG.
1, 42, 52, the transport units 28, 30, 41,
It is located in the center between 51 and the holding parts 27, 29, 40, 50. The packaging case 1 supplied from the packaging case opening device A to the packaging case transport device B is opened as shown in FIG.
The lower wall 2c of the same is placed, and the both mouth portions 3 thereof are the same as the positioning portion 3
First article conveying device C1 and article receiving device E on both sides of 1
Face. Then, the packaging case 1 is transported to the front in a state of being sandwiched between the two conveying portions 28, 30 and the both holding portions 27, 29 at the four corners thereof.

When an article 187 is placed on each article positioning section 52 of the second article carrying device C2, the article positioning section 52
Then, the article 187 is positioned between the carrying section 51 and the holding section 50 and is transported toward the article pushing device D.

In the article pushing device D, when the pushing member 67 is inserted into the article positioning portion 52 of the second article conveying device C2, the pushing member 67 is located at the central position between the conveying portion 51 and the holding portion 50. Then, the article 187 is moved in a direction orthogonal to the carrying direction P, and the article 187 is pushed by the pushing member 67 into the article positioning section 42 of the first article carrying device C1. The article pushing member 67 is also provided in the article positioning section 42 of the first article carrying device C1 and is provided with the carrying section 41.
It moves in a direction orthogonal to the conveyance direction P at the central position between the holding section 40 and the holding section 40. Therefore, the article 187 in the article positioning unit 42 is pushed into the case main body 2 on the packaging case positioning unit 31 of the packaging case transporting device B from the one mouth 3. At this time, the receiving portion 74 of the article receiving device E can come into contact with the article 187 at the other mouth 3 of the case body 2. Then, the pushing member 67 separates from the packaging case 1. The packaging case 1 thus supplied with the articles 187 is transferred to the next process.

In particular, the article supply device for a packaging case according to the present embodiment is provided with the packaging case transport device B, the article transport devices C1 and C2, the article pushing device D, and the article receiving device E described above, and the case body. When the width W of 2 changes, the first differential gear mechanism 144 is used in the drive mechanism G to utilize the first differential gear mechanism 144 for the packaging case positioning unit 31 of the packaging case transporting device B and the article positioning units of the article transporting devices C1 and C2. 42 and 52 can be adjusted according to the width W of the case main body 2, and the second differential gear mechanism 150 is used in the drive mechanism G to press the pushing member 67 of the article pushing device D and the article receiving device E. The receiving portion 74 can be adjusted according to the width W of the case body 2.

In this case, the holding parts 27, 29 of the packaging case positioning part 31 and the holding parts 4 of the article positioning parts 42, 52.
When the movement adjustment distance of 0, 50 is X, the pushing member 67
Since the movement adjustment distance of the or receiving portion 74 is set to approximately X / 2,
The pushing member 67 and the receiving portion 74 can be positioned substantially in the center between the transporting portions 28 and 30 of the packaging case positioning portion 31 and the sandwiching portions 27 and 29, and the transporting portions 41 and 42 of the article positioning portions 42 and 52 can be positioned. The pushing member 67 can be positioned substantially in the center between 51 and the holding portions 40, 50. Therefore, the pushing member 67 contacts the central portion of the article 187 and can push the article 187 into the case main body 2 with good stability.

Further, the receiving portion 74 contacts the article 187 pushed into the case body 2 so that the article 187 is pushed.
You can prevent it from falling off. In the article pushing device D, the packaging case carrying device B and the article carrying devices C1 and C2 that are in operation have their respective positioning portions 31, 42, and
In a state where 52 are arranged side by side in a direction orthogonal to the conveyance direction P, the pushing member 67 is arranged in the article positioning units 42 and 52 of the article conveyance devices C1 and C2.
1 and the holding portions 40 and 50 are reciprocally moved in a constant state in a direction orthogonal to the conveyance direction P with good stability while keeping a constant interval, so that the article 187 is reliably pushed into the case body 2. be able to.

[0057]

According to the present invention, the differential mechanism 144, 15 is provided.
0, the states of the positioning portions 31, 52 and 42 of the packaging case transport device B and the article transport devices C ₁ and C ₂ , the state of the pushing member 67 of the article pushing device D, and the receiving portion 74 of the article receiving device E. The state can be easily changed according to the width W of the packaging case 1.

In this case, the pushing member 67 and the receiving portion 74 are moved in the positioning portions 31, 52, 42 in a stable and constant state. Therefore, the article 187
Can be pushed into the packaging case 1 with good stability and reliability.

Further, by the receiving portion 74, the packaging case 1
It is also possible to prevent the articles 187 therein from falling.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a packaging case used in the packaging machine of this embodiment is opened.

FIG. 2 is a schematic plan view showing an article supply area portion of the packaging machine.

3 is a partially enlarged schematic plan view of FIG. 2. FIG.

FIG. 4 is a schematic front view showing an article conveying device and an article pushing device in FIG.

5 is a schematic front view showing the packaging case transport device and the article receiving device in FIG. 2. FIG.

FIG. 6 is a schematic plan view showing a packaging case length adjusting mechanism in the packaging case transport device.

FIG. 7 is a schematic front view of the same.

FIG. 8 is a schematic plan view showing a packaging case width adjustment mechanism in the drive mechanism of each device.

FIG. 9 is a schematic front view of the same.

[Explanation of symbols]

1 packaging case, 2 case body, 3 mouths, 23 transport chain, 24 transport chain, 25 transport chain, 26 transport chain, 27 gripping unit, 28 transport unit,
29 Holding section, 30 Conveying section, 31 Packaging case positioning section, 38 Conveying chain, 39 Conveying chain, 40
Holding section, 41 transport section, 42 article positioning section, 48
Transport chain, 49 transport chain, 50 holding part,
51 transport section, 52 article positioning section, 58 push-in chain, 63 push-in chain, 64 rotation fulcrum section, 65
Rotating fulcrum part, 66 link, 67 pushing member, 72
Receiving chain, 74 receiving portion, 89 packaging case length adjusting motor, 122 drive motor, 143 output shaft, 14
4 differential gear mechanism, 149 output shaft, 150 differential gear mechanism, 155 packaging case width adjusting motor (rotation adjusting means), 187 articles, B packaging case carrier, C1 article carrier, C2 article carrier, D article Drive device including pushing device, E article receiving device, F packaging case length adjustment mechanism, G packaging case width adjustment mechanism, S article supply area, L case body length, W case body width.

Claims (4)

[Claims] 1. A packaging case conveying device (B), article conveying devices (C1, C2) arranged in parallel along one side of an article supply region (S) of the packaging case conveying device (B), and the articles. An article pushing device (D) for pushing the article (187) on the carrying device (C1, C2) into the packaging case (1) on the packaging case carrying device (B); If so, a pair of endless rotary ropes (23, 25) (24, 26) arranged side by side
Among them, a plurality of transfer parts (28, 30) are attached to the first endless rotary cord (24, 26) at equal intervals, and a plurality of holding parts are attached to the second endless rotary cord (23, 25). Division (27,
29) are attached at equal intervals, and the transfer section (28, 30) is attached.
A plurality of sets of packaging case positioning parts (31) consisting of a holding part (27, 29) and an endless rotary cord (23, 25).
In the article transporting device (C1, C2) arranged along the transporting direction (P) by (24, 26), a pair of endless rotary cords (38, 48) (39, Four
9) In the first endless rotary rope (39, 49), a plurality of transfer parts (41, 51) are provided corresponding to the transfer parts (28, 30) of the packaging case transfer device (B), etc. While being attached at intervals, a plurality of holding parts (40, 50) are provided on the second endless rotary rope (38, 48) corresponding to the respective holding parts (27, 29) of the packaging case transfer device (B). And equip them at equal intervals, and attach them to the carrying section (41, 51) and the holding section (40, 5).
0) and a set of article positioning parts (42, 52) are arranged along the conveying direction (P) by a plurality of sets of endless rotary ropes (38, 48) (39, 49), Device (B) and article transport device (C
1, C2), the first endless rotary cord (24, 2)
6) The (39, 49) is interlocked with the drive means (122), and the second endless rotary ropes (23, 25) (38,
48) is interlocked with the drive means (122) through the first differential mechanism (144), and the first differential mechanism (144)
The rotation of the output shaft (143) of the second endless rotary cord (2
3, 25) (38, 48), the rotation adjusting means (155) is interlocked with the first differential mechanism (144) so as to adjust the rotation of the output shaft (143), In the article pushing device (D), a plurality of pushing members (67) are attached to the endless rotary cord (58, 63) at equal intervals, and a driving means (58) is attached to the endless rotary cord (58, 63). 122) through the second differential mechanism (150) and the output shaft (149) of the second differential mechanism (150).
Of the output shaft (14) to the second differential mechanism (150).
Rotation adjusting means (155) so that the rotation of 9) can be adjusted.
An article supply device for a packaging case, characterized in that 2. The article receiving device according to claim 1, further comprising an article receiving device (C1, C2) on one side of the article feeding area (S) of the packaging case transporting device (B) on the opposite side. (E) are arranged side by side, and in this article receiving device (E), the endless rotary rope (7
A plurality of receiving portions (74) are attached to the second portion (2) at equal intervals, and the drive means (122) is linked to the endless rotary rope (72) through the second differential mechanism (150). The rotation of the output shaft (149) of the second differential mechanism (150) is transmitted to the endless rotary rope (72), and the rotation of the output shaft (149) is transmitted to the second differential mechanism (150). An apparatus for supplying articles to a packaging case, characterized by interlocking a rotation adjusting means (155) so as to be adjustable. 3. The packaging case transfer device (B) and the article transfer device (C1, C2) according to claim 2, wherein the rotation of the rotation adjusting means (155) is transmitted to the first differential mechanism (144). First endless rotary cord (24,26) (39,49)
Of the holding parts (27, 29) (40, 50) on the second endless rotary ropes (23, 25) (38, 48) that move relative to the upper transfer parts (28, 30) (41, 51). When the movement adjustment distance is (X), the rotation of the rotation adjusting means (155) in the article pushing device (D) and the article receiving device (E) is controlled by the second differential mechanism (150).
To each holding part (27, 29) (40, 50)
Endless rotary rope (58, 6) that moves in the same direction (P) as
3) Each pushing member (67) and the endless rotary rope (7)
2) Adjust the movement adjustment distance of each receiving portion (74) above (X /
2) An apparatus for supplying an article to a packaging case, characterized in that 4. A packaging case conveying device (B), article conveying devices (C1, C2) arranged in parallel along one side of an article supply region (S) of the packaging case conveying device (B), and the articles. The article pushing device (D) for pushing the article (187) on the carrying device (C1, C2) into the packaging case (1) on the packaging case carrying device (B) is provided. The endless rotary cords (58) (63) having the same length, the rotary fulcrum portions (64) (65) of the same number are attached to the pair of endless rotary cords at equal intervals. (58) A link (66) is installed between the rotation fulcrums (64) and (65) of (63), and a pushing member (67) is attached to this link (66), and a packaging case transport device ( The article transport device (C1, C2) corresponding to the article supply area (S) of B) The pair of endless rotary cords (58, 63) are arranged in parallel with each other, and are inclined with respect to the conveyance direction (P) of the article conveying device (C1, C2), so that both pushing members (67) adjacent to each other are pushed. ), A quadrangle formed by connecting the centers of the respective pivot fulcrums (64) (65) to each other, and the distances (Q, R) between two opposite sides of the quadrangle are equalized. Supply device.