JP6260187B2 - Box turning device - Google Patents

Description

  The present invention relates to a box direction changing device that changes the direction of a box, and more particularly, to a box direction changing device that can quickly change the direction of a box.

2. Description of the Related Art Conventionally, as a box turning device, a transport unit that transports a box and a contact member that abuts on one side of the front surface of the box that is transported by the transport unit, the front side of the box that is transported by the transport unit There is known one in which the box is rotated by abutting it against the abutting member to change its direction (Patent Document 1).
Conventionally, there is also known a box direction changing device in which a rotation means having a substantially cross-shaped arm is provided in the conveyance path of the conveyance means, and the box is rotated by rotating the arm in contact with the box (Patent Document). 2).

JP-A-11-217117 JP-A-2005-193128

In the former box direction changing device, since the box is rotated by bringing the front side of the box conveyed by the conveying means into contact with the abutting member, it takes time to rotate the box. In addition, the rotation was unstable.
On the other hand, in the latter box direction changing device, the box is rotated by intermittently rotating the substantially cross-shaped arm, so the box direction cannot be changed continuously, and there is a limit to speeding up. there were. In addition, since the substantially cross-shaped arm is in intermittent contact with the box at high speed, there are many failures and breakage of the rotating means, and repair and maintenance are required each time.
In view of the circumstances described above, the present invention provides a box direction changing device that can increase the rotation speed of a box and can reduce the need for repair and maintenance.

That is, the invention of claim 1 comprises a transport means for transporting the box and a contact member that contacts the front side of the box transported by the transport means, and one side of the front surface of the box transported by the transport means. In the box direction changing device that rotates the box to change its direction by bringing the box into contact with the abutting member,
An ejecting means for ejecting liquid in a direction that promotes the rotation is provided toward the box that is rotated in contact with the abutting member.
According to a fifth aspect of the present invention, there is provided a transporting means for transporting the box, and a contact member that abuts on one side of the front surface of the box transported by the transporting means, and one side of the front surface of the box transported by the transporting means. In the box direction changing device that rotates the box to change its direction by bringing the box into contact with the abutting member,
Injecting means for injecting fluid in a direction that promotes the rotation is provided toward the box that rotates in contact with the contact member,
The injection means includes an upstream injection nozzle that promotes rotation of the box at an early stage of rotation by injecting fluid toward the other side of the rear surface of the box that has started rotating by contacting the contact member; A downstream injection nozzle that promotes rotation of the box at a later stage of rotation by injecting fluid toward the other side of the rear surface of the box whose rotation at the initial stage of rotation is promoted by the side injection nozzle. is there.

According to the first aspect of the present invention , since the ejecting means for ejecting the liquid in the direction of promoting the rotation is provided toward the box which is rotated in contact with the abutting member, the former direction change described above. Compared with the device, the box can be rotated at a high speed and the rotation is also stable.
According to the invention of claim 5, the injection means for injecting the fluid includes the upstream injection nozzle that promotes the initial rotation of the box and the downstream injection nozzle that promotes the latter rotation of the box. Thus, the box can be rotated at a higher speed by the fluid from both injection nozzles, and the rotation can be stabilized.
In order to promote the rotation of the box, it is only necessary to inject a fluid or liquid from the above-mentioned injection means toward the box. Therefore, when the rotation means having a substantially cross-shaped arm is provided like the latter direction changing device. In comparison, the direction of the box can be changed continuously, speeding up can be achieved, and the need for repair and maintenance can be reduced.

The top view which shows the Example of this invention Plan view showing a state different from FIG. FIG. 1 is a plan view showing a different state from FIG.

The present invention will be described below with reference to the illustrated embodiment. In FIG. 1, a box direction changing device 1 is provided in a box cleaning device (not shown), and a rectangular parallelepiped box 2 is continuously moved from left to right in FIG. Conveying means 3 for conveying is provided. As this conveying means 3, a top chain conveyor, a roller conveyor, etc. can be used.
On both sides of the transport means 3, upstream guide members 4a and 4b for guiding both sides in the transport direction of the box 2 are provided upstream of the box direction changing device 1, and the upstream guide members 4a and 4b are provided. Thus, the box 2 is prevented from dropping or rotating from the conveying means 3.

In the illustrated embodiment, the upstream guide member 4a, which is the lower side of the paper surface of FIG. 1, is provided up to the entrance of the box direction changing device 1, and the contact member 7 is disposed and fixed at the tip of the upstream guide member 4. It is. The abutting member 7 is arranged in a direction orthogonal to the conveying direction of the box 2 by the conveying means 3, and its front end portion 7 a protrudes on the conveying means 3 and the front surface of the box 2 conveyed by the conveying means 3. It comes in contact with one side.
Therefore, the box 2 that has been transported by the transporting means 3 and has come into contact with the contact member 7 is rotated clockwise around the tip end portion 7 a of the contact member 7 as the transport means 3 transports the box 2. (See FIGS. 2 and 3).

The distal end portion 7a is provided with a stopper portion 7b that protrudes upstream in the conveying direction, and the stopper portion 7b can be engaged with a reinforcing rib (not shown) formed in the box 2.
When the stopper portion 7b engages with the rib of the box 2, the box 2 cannot escape while sliding with respect to the tip portion 7a of the abutting member 7, so that the box 2 has an engaging portion between the stopper portion 7b and the rib. As a result, the box 2 is reliably rotated as a center, whereby the box 2 can be rotated quickly and reliably.
As the rotation of the box 2 proceeds, the engaging portion between the stopper portion 7b and the rib is naturally eliminated, and the box 2 is conveyed toward the downstream side.
Further, the upstream guide member 4b, which is the upper side of the paper surface of FIG. 1, does not impede the rotation of the box 2 rotated by contacting the distal end portion 7a of the abutting member 7. It is provided to a position that is closer to the front side than the rear surface of the box 2 in contact with the box.

Downstream guide members 8a and 8b for guiding both side surfaces of the box 2 in the conveyance direction are provided from the outlet of the box direction changing device 1 to the downstream side.
The downstream guide member 8a on the lower side of the paper surface of FIG. 1 is disposed and fixed so as to be parallel to the transport direction of the transport means 3 from the position of the tip 7a of the contact member 7 toward the downstream side. is there.
On the other hand, the upstream side portion of the downstream guide member 8b, which is the upper side of the paper surface of FIG. 1, is upstream so as not to hinder the rotation of the box 2 that is rotated in contact with the distal end portion 7a of the contact member 7. The side guide member 4a and the downstream guide member 8a are spaced apart from each other, and the distance from the downstream guide member 8a is narrowed as the box 2 rotates.
Then, after the box 2 is rotated 90 degrees, both sides of the box 2 in the conveyance direction can be guided to prevent the box 2 from falling off or rotating from the conveying means 3. ing.

At both upstream positions of the upstream guide members 4a and 4b, there are provided injection nozzles for injecting liquids such as water and cleaning liquid (not shown). Cleaning such as peeling off the label can be performed.
Further, jet nozzles for jetting liquid such as water or cleaning liquid (not shown) are provided at both downstream side positions of the downstream guide members 8a and 8b, and the box direction changing device 1 is driven by the liquid jetted from the jet nozzles. It is possible to clean both sides in the transport direction of the box 2 rotated by 90 degrees.
In addition, of course, a plurality of spray nozzles for cleaning the entire surface of the box 2 such as the inner surface and the bottom surface of the box 2 are provided in the box cleaning device.

Further, the box direction changing device 1 is provided with jetting means 11 for jetting a liquid as a fluid toward the box 2 rotated in contact with the abutting member 7 in the direction of promoting the rotation. In the embodiment, the injection means 11 is composed of an upstream injection nozzle 11A disposed on the upstream side of the contact member 7 and a downstream injection nozzle 11B disposed on the downstream side.
The upstream injection nozzle 11A is provided at a position slightly upstream from the rear surface of the box 2 where one side of the front surface is in contact with the contact member 7, and as shown in FIG. The liquid can be jetted slightly toward the center side of the conveying means 3 toward the other side of the rear surface of the box 2 that has started to rotate in contact with the outer side of the box, substantially parallel to the conveying direction.
Thereby, the rotation at the initial stage of rotation in the box 2 which has started to rotate by contacting the contact member 7 can be effectively promoted.

On the other hand, as shown in FIG. 3, the downstream injection nozzle 11 </ b> B is substantially orthogonal to the conveyance direction toward the other side of the rear surface of the box 2 that is in contact with the contact member 7 and rotated 45 degrees or more. The liquid can be ejected in the direction of the movement. Thereby, the rotation of the box 2 rotated in contact with the contact member 7 can be effectively promoted.
Further, the liquid ejected from the ejecting means 11 and the liquid ejected from the above-described box cleaning nozzle (not shown) are collected and stored in a liquid tank (not shown). The stored liquid can be circulated and used for the jetting means 11 and the jet nozzle for cleaning the box.

In the above configuration, the box 2 conveyed by the conveying means 3 while being guided on both sides by the upstream guide members 4a and 4b is centered on the abutting portion when the front side abuts against the abutting member 7. It will be rotated clockwise.
Each of the spray nozzles 11A and 11B continuously sprays the liquid, and the liquid sprayed from the upstream spray nozzle 11A comes into contact with the contact member 7 and starts to rotate slightly. To accelerate the initial rotation of the box 2 (see FIG. 2).
When the rotation of the box 2 progresses and the box 2 is rotated by about 45 degrees or more, the liquid injected from the downstream injection nozzle 11B is injected to the other side of the rear surface of the box 2 and rotated in the box 2. Continue to promote later rotation (see Figure 3),
As a result, the box 2 is quickly rotated 90 degrees and is transported downstream by the transport means 3 while being guided on both sides by the downstream guide members 8a and 8b.

Of course, either one of the injection nozzles 11A and 11B may be omitted, or more injection nozzles may be provided so that the rotation of the box 2 can be further promoted.
Further, the mounting positions and orientations of the injection nozzles 11A and 11B can be appropriately adjusted according to the shape of the box 2.
Furthermore, although the liquid is used as the fluid in the above embodiment, the present invention is not limited to this. For example, the direction of the box may be changed by jetting air as a fluid.

DESCRIPTION OF SYMBOLS 1 Box direction change apparatus 2 Box 3 Conveying means 7 Contact member 11 Injection means 11A Upstream side injection nozzle 11B Downstream side injection nozzle

Claims (5)

A conveying means for conveying the box; and an abutting member that abuts on one side of the front surface of the box that is conveyed by the conveying means; In the box direction changing device that rotates the box to change its direction,
A box direction changing device, characterized in that jetting means for jetting liquid in a direction for promoting the rotation is provided toward a box that is rotated in contact with the abutting member. The jetting means includes an upstream jet nozzle that accelerates the initial rotation of the box by jetting liquid toward the other side of the rear face of the box that has started rotating by contacting the abutting member. The box direction changing apparatus according to claim 1, wherein The jetting unit includes a downstream jet nozzle that accelerates rotation of the box at a later stage of rotation by jetting liquid toward the other side of the rear face of the box that is rotated in contact with the contact member. The box direction changing apparatus according to claim 1 or 2. Comprises a liquid tank for storing and recovering the liquid injected from the injection means, according to claim 1 to claim 3, characterized in that use circulating the liquid stored in the liquid tank to the injection means The box direction change apparatus in any one of. A conveying means for conveying the box; and an abutting member that abuts on one side of the front surface of the box that is conveyed by the conveying means; In the box direction changing device that rotates the box to change its direction,
  Injecting means for injecting fluid in a direction that promotes the rotation is provided toward the box that rotates in contact with the contact member,
  The injection means includes an upstream injection nozzle that promotes rotation of the box at an early stage of rotation by injecting fluid toward the other side of the rear surface of the box that has started rotating by contacting the contact member; A box direction, comprising: a downstream side injection nozzle that promotes rotation in the later stage of rotation of the box by injecting fluid toward the other side of the rear surface of the box whose initial rotation is promoted by the side injection nozzle Conversion device.

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