JPH0415602Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) The present invention relates to a device for changing the direction of delivery of packaged products by 90 degrees in, for example, a tray packaging machine for fresh foods.

(Prior art) Conventionally, this type of packaging machine was manufactured by, for example,
There is one shown in Publication No. 61-273322. In this packaging machine, the tray on the product holder device is pushed up to the packaging position from a state in which the packaging film stretched on the packaging section of the film transport device is held between both front and rear pressing members at both edges in the width direction. The packaging film is stretched to cover the tray from above, and then the packaging film is folded by a folding device below the tray to package the tray.

That is, in the folding device of this packaging machine, the rear folding member moves forward and backward relative to the fixed front folding member, approaching and separating from each other, and as the rear folding member moves back and forth, both the left and right folding members move below the rear folding member. open and close each other, and the supply holder provided upright on the item holder device can be tilted inward by contact with the rear folding member and both left and right folding members. When the rear folding member moves forward and the left and right folding members are closed together, these folding members push the packaging film toward the bottom of the tray on the supplies holder, and It makes contact with the stand and tilts it. When the article holder device moves downward at the same time as this tilting, the trays are sequentially placed on the rear folding member from the rear side of the lower surface.
The packaging film is folded under the tray from both the rear and left and right directions. Thereafter, when the tray is conveyed forward by the rotation of the conveyor belt and transferred from the rear folding member to the front folding member, the packaging film hits the front folding member on the underside of the tray during the transfer, and the packaging film hits the front folding member and moves forward. It is also folded in from
The folding from the rear overlaps with the folding from both left and right directions, and the folding from the front overlaps to form a folded portion at the bottom of the tray. Next, the rear folding member retreats, and as the rear folding member retreats, the left and right folding members also open from each other.

On the package delivery side of such a packaging machine,
2. Description of the Related Art Conventionally, a device 1 for changing the direction of packaged goods discharge is provided, for example, as shown in FIGS. 5 and 6. In this package delivery direction changing device 1, the delivery direction A of the package 25 is
A plurality of carry-out rollers 18 are arranged in parallel in the same direction A, and a plurality of carry-out belts 1
2 is stretched between each delivery roller 18 in a direction B perpendicular to the delivery direction A of the packaged product 25, and each delivery belt 1
2, each delivery roller 18 can move up and down. Each of the carry-out rollers 18 is not forcibly driven and is free. Further, a stopper 13 is provided on the unloading side of the device 1.

Then, as shown in FIG.
The packaged product 25 is transferred onto each delivery roller 18 while being above each delivery belt 12, and stops when it comes into contact with a stopper 13. In this state, when each carry-out roller 18 moves downward and the packaged product 25 is placed on each carry-out belt 12, the package 25 changes direction by 90 degrees due to the forced rotation of each carry-out belt 12, and the flat belt 25 of the heater device 20 be carried upwards. Here, the folded portion 27 of the packaged product 25 is tightly sealed by heat.

(Problem to be solved by the invention) By the way, in the case of the folding part 27 of the packaged product 25, the folding from the front is performed last.
If the front folds 27a are not in close contact, each of the delivery rollers 18 of the package delivery direction changing device 1
Otherwise, there is a risk that it may get caught in the circumferential direction of each delivery belt 12. In particular, in the device 1 described above, since each delivery belt 12 is stretched in the direction B perpendicular to the delivery direction A of the packaged product 25, the front fold 27a
It becomes easy to hang down between each delivery belt 12, and the possibility that this entrainment occurs becomes high.

Therefore, by improving the arrangement structure of each carry-out belt and each carry-out roller, the above-mentioned entrainment can be prevented, and by improving the support structure of the carry-out rollers, it is possible to contribute to the miniaturization of the device. It is an idea.

Structure of the invention (means for solving problems) That is, as shown in the drawings of the embodiments described later, the present invention includes a package delivery direction changing device 1 that is continuous with the front folding member 2 and is provided on the delivery side thereof. , the packaged product 25 is carried out from the front folding member 2 to the machine frame 3.
A plurality of support members 10 are arranged in parallel in a direction orthogonal to the carrying-out direction A in a cantilevered manner in the carrying-out direction A, and are tiltable vertically about the support shaft 5 on the front folding member 2 side. , a pair of pulleys 7 and 11 rotatably supported by each support member 10 at a predetermined interval in the carrying-out direction A, and both pulleys 7,
11, a plurality of carry-out belts 12 are stretched at predetermined intervals in a direction B perpendicular to the carry-out direction A.
It is cantilevered with respect to the support frame 17 located on the side of the carry-out direction A than each carry-out belt 12, and is located between each carry-out belt 12, and can actively rotate in the direction B perpendicular to the carry-out direction A. The support member 10 is moved in the vertical direction around the support shaft 5 so that the plurality of carry-out rollers 18 provided in the Support mechanism 1 that supports tilting
4, 15, and 16.

(Function) In the present invention configured as described above, when the packaged product 25 is transferred from the front folding member 2 onto each delivery belt 12 of the packaged product delivery direction changing device 1, each delivery belt 12 is moved by each delivery roller. A packaged product 25 is placed on each delivery roller 18 with the packaged product 25 facing downwardly relative to the packaged product 18, and the packaged product 25 is conveyed in a direction B perpendicular to the delivery direction A from the front folding member 2.

When the packaged product 25 is on the packaged product discharge direction changing device 1, even if the lower front fold 27a of the packaged product 25 is easily separated, the front fold 27a
Since it is perpendicular to each delivery belt 12, it is difficult for the paper to hang down between them, and it will not be caught up in the belt 12. Furthermore, the front folding 27a is no longer wrapped around each of the carry-out rollers 18 as well.

(Example) An example of the present invention will be described below with reference to FIGS. 1 to 4.

The package delivery direction changing device 1 according to the present embodiment is mounted on a packaging machine of almost the same type as the packaging machine shown in, for example, Japanese Patent Application Laid-open No. 61-273322, and is installed on the delivery side of the packaging machine in continuation with the front folding member 2. ing.

In the front folding member 2, a folding pulley 4 is supported between the left and right machine frames 3, and both folding pulleys 4 are supported on the inside of the machine frames 3 adjacent to the outside thereof so as to be rotatable in the vertical direction by respective shafts 5. A drive pulley 7 is supported between the levers 6 in parallel to the folding pulley 4, and a plurality of delivery belts 8 are stretched in parallel between both the pulleys 4 and 7. The rotational direction of each of the delivery belts 8 is the packaging product delivery direction A.

In the packaging product delivery direction changing device 1, a connecting plate 9 is installed between the tip ends of both levers 6 outside the drive pulley 7, and a plurality of support plates 10 as supporting members are installed outside the connecting plate 9. are arranged in a cantilevered manner. A plurality of delivery belts 12 are stretched between the driven pulley 11 supported at the tip of each support plate 10 and the drive pulley 7 in the packaging product delivery direction A, and a direction B perpendicular to the same direction A. are installed in parallel. Further, a stopper 13 is provided upright at the tip of each support plate 10 on the outside of each driven pulley 11.

A drive shaft 14 is supported between the machine frames 3 below the connecting plate 9, and a cam plate 15 is attached to the drive shaft 14 below the tips of the levers 6. Both cam plates 15 are in sliding contact with cam rollers 16 attached to the outside of the tips of both levers 6.

A mounting plate 17 as a support frame is fixed to the machine frame 3 on the side of each stopper 13, and this mounting plate 1
Inside the belt 7, a plurality of delivery rollers 18 are supported in a cantilevered manner so as to be positioned between the respective delivery belts 12. Each of these delivery rollers 18 has a gear 1
9, and are forced to rotate in a direction B perpendicular to the direction A of carrying out the packaged goods.

As the drive shaft 14 rotates, both cam plates 15
When rotates, both levers 6 and each support plate 10 move up and down via both cam rollers 16, and as a result, each delivery belt 12 moves up and down to a position above each delivery roller 18 (see Fig. 3). and the lower position (see Figure 4).

The drive shaft 14, both cam plates 15, and both cam rollers 16 constitute a support mechanism that supports each carry-out belt 12 so as to be movable relative to the carry-out roller 18 in the vertical direction.

A heater device 20 is provided on the negative side of the package delivery direction changing device 1 configured as described above. In this heater device 20, the flat belt 2
1 is stretched between a driving pulley 22 and a driven pulley 23, and a heater plate 2 is placed inside this flat belt 21.
4 is in sliding contact.

Now, as shown in FIG. 3, after the tray 26 is folded from the rear and left and right directions under the tray 26, the tray 26 is transferred forward and placed on the front folding member 2. On the lower side, the packaging film hits the folding pulley 4 of the front folding member 2 and is folded in from the front, and the folding from the rear is overlapped with the folding from both left and right directions, and the folding from the front 27a is further overlapped to form the tray. 26
A folding portion 27 is formed below the .

The packaged product 25 wrapped in this manner is transferred onto each delivery belt 12 of the packaged product delivery direction changing device 1 via each delivery belt 8 of the front folding member 2, and is stopped by coming into contact with each stopper 13. At this time, the drive pulley 7 stops, and the rotation of each delivery belt 8, 12 also stops.

Thereafter, as shown in FIG.
5 is placed on each delivery roller 18, the packaged product 25 is transferred in a direction B perpendicular to the delivery direction A from the front folding member 2, and is transferred to the flat belt 21 of the heater device 20.
The folded portion 27 of the packaged product 25 is placed on top of the folded product 25 and is tightly attached to the packaged product 25 by heat.

Particularly in this embodiment, when the packaged product 25 is on the packaged product delivery direction changing device 1, even if the front folding 27a on the lower side of the packaged product 25 is easily separated, the front folded part 27a is attached to each delivery belt 12. Since it is perpendicular to the belt 12, it is difficult to hang down between them, and the belt 12 does not get caught up in it. Furthermore, the front folding 27a is no longer wrapped around each of the carry-out rollers 18 as well.

Further, since a configuration is adopted in which each carry-out roller 18 is supported in a cantilever shape with respect to the mounting plate 17 on the side of the carry-out direction A than the driven pulley 11 supported at the tip of the support plate 10, each carry-out roller 18 As a support frame for supporting the end portion on the front folding member 2 side, the member cost can be reduced, and when the support plate 10 is tilted, the carry-out belt 12 There is also no risk of collision with the support frame on the side of the member 2, thereby interfering with vertical movement of the carry-out belt 12 relative to the carry-out roller 18. Furthermore, by supporting both the carry-out belts 12 and the carry-out rollers 18 in a cantilever shape from opposite directions, it is possible to arrange the belts 12 and 18 in parallel with each other in the direction B perpendicular to the carry-out direction A. Also, small pulleys can be used for the pulleys 7 and 11 for passing the carry-out belt 12 around, which can also contribute to miniaturization of the entire apparatus.

Effects of the invention As detailed above, according to this invention, not only is it difficult for the front fold 27a of the packaged product 25 to be caught in each delivery belt 12 and each delivery roller 18, but also the delivery roller 18 is Since the configuration is such that the support frame located on the side of the carry-out direction A is supported in a cantilevered manner, the support frame for supporting the carry-out roller 18 only needs to be on the opposite side of the carry-out direction A, reducing the cost of members related to the support frame. At the same time, it is possible to eliminate the possibility of hindrance to the vertical movement of the carry-out belt relative to the carry-out roller 18 when a support frame is also provided on the carry-out direction A side. Each carry-out belt 12 and each carry-out roller 1 are arranged in parallel to each other.
8 and 8 are supported in a cantilever shape from opposite sides along the unloading direction A, it is possible to use a small pulley for wrapping the unloading belt 12, contributing to miniaturization of the entire device. It has the excellent effect of being able to

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, FIG. 1 is a schematic plan view showing the unloading section of a packaging machine including the packaged goods unloading direction changing device of this embodiment, and FIG. 2 shows the unloading section of the packaging machine. Cross-sectional view seen from the front, Figure 3 is taken along line X-X in Figure 1.
A line sectional view, FIG. 4 is a sectional view showing a state in which each delivery belt of the packaging product delivery direction changing device has moved downward from the state shown in FIG. 3, and FIG. A schematic plan view showing the unloading section of the machine,
FIG. 6 is a sectional view taken along the line Y--Y in FIG. 5. Packaging product delivery direction changing device...1, Front folding member...
...2, Axis...5, Lever...6, Drive pulley...
7. Connection plate...9. Support plate as a support member...
10, Driven pulley...11, Carrying out belt...1
2. Stopper...13, Drive shaft...14, Cam plate...15, Cam roller...16, Mounting plate as support frame...17, Carrying out roller...18, Heater device...20, Packaged product... 25, tray...26,
Folding part...27, Front folding...27a,
Export direction...A, B.

Claims (1)

[Scope of Claim for Utility Model Registration] In a device for changing the direction of packaged products 25 in a packaging machine, which is installed continuously on the front folding member 2 and on the discharge side thereof, the direction of the packaged product 25 carried out from the front folding member 2 relative to the machine frame 3 is changed. A plurality of support members 10 are arranged in parallel in a direction orthogonal to the carry-out direction A in a cantilever shape in the carry-out direction A and are tiltable in the vertical direction about the support shaft 5 on the front folding member 2 side. , a pair of pulleys 7 and 11 rotatably supported by each support member 10 at a predetermined interval in the carry-out direction A, and a predetermined interval in a direction B orthogonal to the carry-out direction A between both pulleys 7 and 11. A plurality of carry-out belts 12 are hung across each carry-out belt 12 at a distance, and a support frame 17 located on the carry-out direction A side than each carry-out belt 12 is cantilevered and positioned between each carry-out belt 12. A plurality of carry-out rollers 18 are provided to be actively rotatable in a direction B orthogonal to the carry-out direction A, and each carry-out belt 12 is supported so as to be in an upper position and a lower position with respect to each carry-out roller 18. A packaged product delivery direction changing device for a packaging machine, comprising support mechanisms 14, 15, and 16 that support a member 10 so as to be tiltable in the vertical direction about a support shaft 5.