JP2662079B2 - Article supply device in packaging machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention [Industrial Application Field] The present invention relates to a packaging machine for a packaging machine that folds a packaging film below an article while covering the article with the packaging film from above. The present invention relates to an apparatus for supplying an article to a computer.

[Prior Art] Conventionally, as this type of apparatus, for example, Japanese Patent Application Laid-Open No. 58-1576
There is one shown in No. 26 publication. In the apparatus, an article receiving apparatus for lifting an article by placing the article under the packaging section, moving the article up and down, and bringing the article into contact with the packaging film supplied to the packaging section, And an article transport device for supplying articles onto the article receiving table of the receiving apparatus.
Then, when the article is placed on the article transport apparatus, the article is transferred to the article receiving apparatus, and is placed on the article receiving table at the lowest position. After that, the goods tray rises to the packaging section,
There, a film is wrapped around the article.

By the way, as a conventional packaging type, there are a tray system in which stored items are put into a tray and wrapped with a film, and a note lay system in which stored items are directly wrapped with a film. In the case of the note-ray method, since the outer shape of the article is not constant, the article is likely to be in an unstable state when the article is transported by the article transport apparatus or when the article is placed on the article receiving device. Therefore, in the packaging machine described in JP-A-58-157626, the note-ray system is difficult due to the structure of the article supply device, and only the tray system can be used. Therefore, a packaging machine dedicated to the note-ray system is disclosed in, for example, Japanese Patent Application Laid-Open No. 57-68325.

An object of the present invention is to provide an article receiving apparatus capable of performing not only a tray method but also a note-ray method in a packaging machine having the above-described article receiving apparatus and article transport apparatus. .

Configuration of the Invention [Means for Solving the Problems] In view of this object, an article supply device according to the present invention is provided with an article 6 below a packaging section S as shown in the drawings of an embodiment described later.
The article receiving apparatus 1 lifts the packaging material F by bringing the articles 69 and 70 into contact with the packaging material F supplied to the packaging section S, and moves the article receiving apparatus 1 up and down. In a packaging machine provided with an article conveying device 39 for supplying articles 69 and 70 onto the article receiving table 6 of the table apparatus 1, the article receiving table 6 in the article receiving table apparatus 1 is configured to be capable of moving up and down. At a lowered position corresponding to the device 39, a stopper member 28 is provided for abutting the articles 69, 70 conveyed to the article receiving table 6, and the article receiving table 6 is provided between the article receiving table 6 and the stopper member 28. A holding member 15 for holding the upper articles 69 and 70 is provided.

[Operation] Now, the articles 69, 70 are transferred to the article transport apparatus 39 and the article receiving table apparatus 1.
When the articles 69 and 70 are clamped between the holding member 15 and the stopper member 28 on the article receiving stand 6 and the article receiving stand 6 moves up together with the holding member 15, 70 rises together with the article receiving table 6 while sliding along the stopper member 28. By this clamping, the articles 69, 70 are reliably positioned and supplied to the packaging section S.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

 First, the article receiving device 1 will be described in detail.

On both left and right sides of the machine frame 2, columns 3 are erected, and a pair of upper and lower sliding members 4, 5 are inserted into the columns 3 so as to be vertically movable along the columns 3. An article receiving table 6 is connected between the upper left and right sliding members 4.

In this article receiving stand 6, four support rods 7 are extended upward at the center between the left and right sliding members 4, and each support rod 7
A support shaft 8 is attached to the upper end of the, and extends rearward in a horizontal state. Four supporting rods 9 are also extended upward between the lower left and right sliding members 5, and a supporting shaft 10 is also provided at the upper end of each supporting rod 9.
Is attached and extends rearward in a horizontal state. Each of the support shafts 10 is on the same axis as the rear side of each of the support shafts 8. A main support member 11 is fitted to each of the support shafts 8, and a sub support member 12 is fitted to each of the support shafts 10, and the support members 11, 12 are tiltable mounting tables 11a, 12a. have.

Of the four supporting rods 7 on the upper left and right sliding members 4, a pair of upper and lower levers 13, 1 are respectively attached to the central supporting rod 7.
4 is rotatably supported in the vertical direction by shafts 13a and 14a, and a holding rod 15 is rotatably supported by shafts 15a and 15b between the front ends of the levers 13 and 14. It extends upward. A spring is provided between the lower end of the holding rod 15 and the supporting rod 7.
16 are connected, and the levers 13, 1
4 is rotated downward, and the holding rod 15 is located below the mounting tables 11a and 12a of the support members 11 and 12. A solenoid 17 is attached to a central portion between the upper left and right sliding members 4, and a rod 17 a that moves down by excitation of the solenoid 17 is connected between the rear ends of the lower left and right levers 14. I have. Then, when the solenoid 17 is excited, the rod 17a moves down, the levers 13 and 14 rotate upward, and the holding rod 15 is
The support members 11 and 12 are moved in parallel above the mounting tables 11a and 12a against the urging force of.

A drive shaft 18 is supported inside the machine frame 2 on the rear side, and a drive lever 19 is attached to both ends of the drive shaft 18, and both ends of the drive shaft 18 are connected to both sides of the drive shaft 18. Cylinder 20a
, The drive lever 20 integrated therewith is rotatably supported. The two drive levers 20 are linked to the drive shaft 18 via a clutch 21. Each of the drive levers 19 and 20 extends forward from the drive shaft 18, and both outer drive levers 19 are attached to the upper left and right sliding members 4, and both inner drive levers 20 are connected to the lower drive lever 20. It is attached to both left and right sliding members 5. One drive lever of both outer drive levers 19
An electric motor 22 and a speed reducer 23 interlocking with the electric motor 22 are installed in the machine frame 2 corresponding to 19, and one drive lever 19 interlocks with a groove cam 24 attached to an output shaft 23a of the speed reducer 23. It is supposed to. Then, when the electric motor 22 is driven, the groove cam 24 rotates via the speed reducer 23, the drive shaft 18 rotates, the outer two drive levers 19 reciprocate in the vertical direction, and the clutch 21 is engaged. In this state, both inner drive levers 20 reciprocate vertically. When the outer drive levers 19 are tilted, the upper slide members 4 move up and down along the columns 3, and the main support members 11 also move up and down. When the inner drive levers 20 are tilted, the lower sliding members 5 move up and down along the columns 3, and the sub-support members 12 also move up and down.

A bracket 25 is attached to the inside of the rear machine frame 2 above the drive shaft 18 so that the slide plate 27 moves horizontally in the front-rear direction on a rail 26 provided below the bracket 25. It is supported by. A stopper member 28 is supported on the slide plate 27 so as to be movable in the front-rear direction, and the stopper member 28 is urged forward by a spring 29 connected therebetween. A gate-shaped guide plate 30 is attached to the front end of the stopper member 28. A space (not shown) is formed at the lower end of the guide plate 30, and rollers are provided on both left and right sides of the guide plate 30. (Not shown) are juxtaposed vertically. Under the bracket 25, the machine frame 2
A timing belt 35, which is rotated by an electric motor 34, is wound between a pair of pulleys 35a and 35b around a bracket 33 attached to the inside of the bracket 33.
Gear 3 with respect to the electric motor 34.
The encoder 38 is interlocked via 6, 37. Then, when the timing belt 35 is rotated by the electric motor 34, the stopper member 28 moves in the front-rear direction together with the slide plate 27. The guide plate 30 of the stopper member 28 is opposed to the left and right holding rails 15 when the holding rod 15 moves upward.

Next, the articles 69, 7 are placed on the article receiving table 6 of the article receiving apparatus 1.
The article conveying device 39 for supplying 0 will be described in detail.

A state in which a plurality of round belts 41, 42 are stretched between the respective pulleys 43, 44, 45 from the article receiving device 1 to the front outside of the machine frame 2 and are horizontally arranged in parallel in the horizontal direction. Has become.
A pair of sprockets 46 and 47 are supported on a rotating shaft 45a that supports the outermost pulley 45, and one sprocket 4
6 is rotatable integrally with the coaxial 45a, and the other sprocket 47 is rotatable with respect to the coaxial 45a. A pair of sprockets 49 and 50 are supported on a rotating shaft 48 supported inside the rear machine frame 2 in the vicinity of the article receiving device 1, and one sprocket 49 can rotate integrally with the coaxial 48, The other sprocket 50 is rotatable with respect to the coaxial 48. An endless chain 51 is wound between the two sprockets 46 and 49 in parallel with the round belts 41 and 42, and an endless chain 52 is adjacent to the chain 51 between the two sprockets 47 and 50. It is wound in parallel. A plurality of transport sections 53 are attached to one chain 51 at equal intervals, and the other chain 52 has the same number of clamping sections 54 as the transport section 53 at a position away from the transport section 53 rearward. They are attached at equal intervals, and constitute a set of article positioning members 55 by the transport section 53 and the holding section 54. The holding section 54 is urged in a direction approaching the transport section 53 and is stationary.

Both rotating shafts 56 and 57 are supported on the same axis adjacent to the rotating shaft 48 inside the rear frame 2, and the rotating shafts 56 and 57 are connected by a differential gear mechanism 58. This differential gear mechanism 58
Is a conventionally known one, and a bevel gear 58a attached to one rotating shaft 56 and a bevel gear 58b attached to the other rotating shaft 57.
And a pair of planetary bevel gears 58 meshing with the two bevel gears 58a and 58b.
c, 58d, and the two bevel gears 58c, 58d
It rotates around. Then, when one rotation shaft 56 makes one rotation, the other rotation shaft 57 also makes one rotation,
The number of teeth of each bevel gear 58a, 58b, 58c, 58d is set so that the rotation of the other rotating shaft 57 is not transmitted to the one rotating shaft 56.

Sprockets 59, 60 are attached to the rotating shafts 48, 56, and a chain 61 is wound around the sprockets 59, 60. A sprocket 62 is also attached to the rotating shaft 57, and a chain 63 is wound around the sprocket 62 and the sprocket 50 on the rotating shaft 48. The rotation shaft 48 is
The output shaft 23a is connected via an intermittent transmission device (not shown). When the output shaft 23a rotates, the rotation shaft 48 rotates intermittently, and the intermittent rotation is transmitted to one of the rotation shafts 56 via the chain 61.

The rotation of the output shaft 64a of the electric motor 64 is transmitted to the rotating shaft 57 connected to the differential gear mechanism 58 via gears 65 and 66, and the rotation is transmitted to the potentiometer 68 via gears 66 and 67. Is also transmitted.

Next, the operation of the article supply device according to the present embodiment will be described in detail.

First, as shown in FIGS. 1 to 3, when packaging a note-lay article 69, when a signal relating to the type and width of the article 69 is input to a microcomputer (not shown),
In the article receiving device 1, the electric motor 34 is driven until the output of the encoder 38 interlocked with the electric motor 34 becomes an output stored in advance for each width dimension of the article 69,
27 and the stopper member 28 move in the front-rear direction, and the guide plate 30 of the stopper member 28 and the holding rod 15 of the article receiving table 6 (upward movement position).
Is automatically adjusted. Further, in the article conveying device 39, the electric motor 64 is driven until the output of the potentiometer 68 interlocked with the electric motor 64 becomes an output stored in advance for each width dimension of the article 69, and the rotation of the electric motor 64 is controlled by a gear.
65, 66, the rotation shaft 57 and the chain 63 are transmitted to the chain 52, the holding portion 54 of each article positioning member 55 moves in the front-rear direction, and the holding portion 54 of each article positioning member 55 and the transport portion 53.
Is automatically adjusted. In this case, because of the differential gear mechanism 58, even if the rotating shaft 57 rotates, the rotation is not transmitted to the rotating shaft 56, and the chain 51 to which the respective transport units 53 are attached does not rotate.

When the electric motor 22 is driven, the main support member 11 and the sub-support member 12 of the article receiving table 6 move up and down in the article receiving apparatus 1, and the two chains
Due to the rotation of 51, 52, the transport sections 53 and 5 of the article positioning member 55
4 moves toward the article receiving device 1. Goods receiving device 1
When the article receiving pedestal 6 reaches the lowermost position in a state where the holding rod 15 is moved down, the note lay article 69 clamped between the conveying portion 53 of the article positioning member 55 and the clamping portion 54 is moved to the article receiving pedestal 6.
It is placed on the upper surface and abuts against the guide plate 30 of the stopper member 28 and stops together with the article positioning member 55. And the holding rod
15 moves upward, so that the note lay article 69 is held between the holding rod 15 and the guide plate 30 of the stopper member 28. Thereafter, when the article receiving tray 6 rises together with the clamping rod 15, the note-lay article 69
Rises together with the article receiving table 6 while sliding along the rollers of the guide plate 30. With this rise, both chains 51 and 52 rotate again, and the transport portion 53 and the holding portion 54 of the article positioning member 55 move through the space in the lower half of the stopper member 28.

Although not shown, when the note lay article 69 rises to the packaging section S, the article 69 is placed on a packaging film F as a packaging material.
, The film F is lifted up, and the film F is folded under the article 69 for packaging. When the article receiving table 6 reaches the lowermost position during the packaging, the next note lay article 69 is placed on the article receiving table 6 in the same manner as described above.

When the note-lay article 69 is supplied to the packaging section S by the article transport device 39 and the article receiving device 1 in this manner, the stopper member 28 and the holding rod 15 of the article receiving device 6 in the article receiving device 1 are used.
As a result, the note-lay article 69 is sandwiched and raised together with the article receiving table 6, so that the note-lay article 69 can be reliably positioned and supplied to the packaging section S.

On the other hand, as shown in FIGS. 4 and 5, when the tray articles 70 are wrapped, when a signal relating to the type and width dimension of the articles 70 is input to a microcomputer (not shown), the article positioning member 55 Transport section 53 and clamping section
The interval W between the tray articles 54 is the widest state regardless of the width dimension of the tray article 70. In the article receiving device 1, the stopper member 28 stops at the most advanced position. When the tray article 70 reaches the article receiving table 6 and abuts the guide plate 30 of the stopper member 28, the stopper member 28 moves together with the tray article 70 to gradually stop the tray article 70, and the electric motor 34 The output of the linked encoder 38 is
The electric motor 34 is driven until the output stored in advance for each width dimension is reached, and the stopper member 28 and the tray article 70 are moved at the interval W between the article support 6 and the support rod 15 (upward movement position). It stops on the article receiving stand 6. Thereafter, the holding rod 15 moves upward to hold the tray article 70 and the guide plate of the holding rod 15 and the stopper member 28.
Hold between 30. Subsequent operations are the same as those described for the note-ray article 69.

When the clutch 21 is disengaged in the article receiving device 1,
Only the main support member 11 of the article receiving table 6 moves up and down, and the sub support member 12 stops at the lowest position. Sub support member
Twelve uses are performed by the note lay article 69 according to the size of the tray article 70.

Effects of the Invention According to the present invention, even in the case of a note-lay article 69 whose placement state is likely to be unstable, it can be supplied to the packaging section S in a state where it is securely positioned on the article receiving table 6.

[Brief description of the drawings]

FIG. 1 is a schematic plan cross-sectional view mainly showing an article conveying device in an article supply apparatus according to the present embodiment when packaging a note-ray article, and FIG. 2 mainly shows an article receiving apparatus in the article supply apparatus. FIG. 3 is a schematic side sectional view, FIG. 3 is a schematic plan sectional view thereof, FIG. 4 is a schematic plan sectional view mainly showing an article conveying apparatus in the article supply apparatus of the present embodiment in the case of packing tray articles, and FIG. FIG. 3 is a schematic side sectional view mainly showing an article receiving device in the article supply device. DESCRIPTION OF SYMBOLS 1 ... Article receiving apparatus, 6 ... Article receiving stand, 15 ... Nipping rod (holding member), 28 ... Stopper member, 39 ... Article transporting apparatus, 69 ... Note lay article, 70 ... Tray article , S ...
Packaging part, F ... Packaging film (packaging material).

Claims (1)

(57) [Claims] An article (69, 70) is placed under the packaging section (S) and moved up and down. As the article moves up and down, the article (69, 70) is supplied to the packaging material (F) supplied to the packaging section (S). ) Is brought into contact with and lifts the packaging material (F), and an article (6) is placed on the article cradle (6) of the article cradle apparatus (1).
9, 70), wherein the article receiving device (1) is provided with a vertically movable article receiving device (6). A stopper member (28) for contacting the article (69, 70) conveyed to the article receiving table (6) at a lowering position corresponding to the stopper member (28), and the article receiving table (6) is provided with the stopper member (28). Characterized in that a holding member (15) for holding the article (69, 70) on the article receiving stand (6) is provided between the article supply device and the article receiving apparatus.