JP2518452Y2 - Boxing equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging device.

[0002]

2. Description of the Related Art A conventional packing device will be described with reference to FIGS. 3 to 6. In FIG. 3, a column 1 and a column 2 are vertically movable on one side of the column 1 via a linear bearing (not shown). A lifting device that is attached to the lifting device 5 to move the lifting device 2 up and down.
7 is a gripper head attached to one side surface of the lifting device 2 through a linear bearing (not shown) so as to be movable back and forth (movement in the directions of arrows A and B), and 6 is the gripper head 7 in the front-back direction (arrow A). , A horizontal drive device for moving in the B direction), 8 is a gripper holder attached to the gripper head 7, 9 is a plurality of grippers vertically mounted on the gripper head 7 (the same number as the number of bottles to be packed in the box), and 3 is easy to grip the bottle 10. Arranging bottle conveyors 4 are aligning conveyors for aligning the empty boxes 11 in order to stably pack the empty boxes 11.

Reference numeral 12 in FIG. 4 is a solenoid valve interposed in the pressure fluid path between the gripper holder 8 and the pressure fluid source, and reference numeral 15 in FIGS. 4 to 6 is a gripper 9 provided at the lower end of each gripper holder 9. The holding cylinders 9a are gripping members (gripped rubbers) made of a flexible material for the grippers 9 arranged inside the respective holding cylinders 15 with a gap. The following actions are performed in the packaging device shown in FIGS. That is, (1) When the arranging of the bottles 10 by the arranging bottle conveyor 3 is completed, the elevating / lowering drive device 5 is operated, and the elevating / lowering device 2, the gripper heads 7, the gripper holders 9, and the flexible member gripping members 9a.
And are lowered to cover the heads of the respective bottles 10 with the respective flexible member holding members 9a. At this time, these flexible material holding members 9a are in the state of FIG. The solenoid valve 12 is energized and is in the closed position. (2) When the heads of the bottles 10 are covered with the gripping members 9a made of flexible material as described above, the solenoid valve 12 is de-energized, and the solenoid valve 12 is moved to the open position so that the pressurized air of a predetermined pressure is applied. Solenoid valve 1
2 → Grip holder 8 → Feed to the gap a between the holding cylinder 15 of each gripper 9 and the flexible material gripping member 9a, and inflate each flexible material gripping member 9a as shown in FIG. Grab the head of bottle 10. (3) Next, the lifting drive device 5 is operated to lift the lifting device 2, the gripper heads 7, each gripper holder 9, each flexible material holding member 9a, and each bottle 10. (4) Next, the horizontal driving device 6 is operated to move the gripper head 7, each gripper holder 9, each flexible material holding member 9a, and each bottle 10 in the direction of the arrow A, so that each bottle 10 is moved to the box 11.
Position directly above. (5) Next, the lifting drive device 5 is operated to lower the lifting device 2, the gripper head 7, each gripper holder 9, each flexible material gripping member 9a, and each bottle 10, and each bottle 10 is placed in the box 11.
Insert inside. (6) Next, the solenoid valve 12 is energized and moved to the closed position to release the pressure air in the clearance b, and the flexible member gripping members 9a are returned to the state shown in FIG. Release the gripper 9 from each bottle 10. (7) Next, the elevating / lowering drive device 5 is operated to elevate the elevating / lowering device 2, the gripper head 7, each gripper holder 9, each flexible material gripping member 9a, and each bottle 10 to complete the packaging.

[0004]

The conventional packaging device shown in FIGS. 3 to 6 has the following problems. That is, when the flexible material gripping member 9a is damaged, the pressure air is made of the flexible material even if the solenoid valve 12 is de-energized while trying to grip the bottle 10. Leakage from the inside of the gripping member 9a to the outside, the pressure in the gap A does not rise to a predetermined pressure, the gripping member 9a made of flexible material does not swell inward, and the continuous packing operation is performed without gripping the bottle 10. Then, there was a problem that the number of bottles 10 was insufficient at the time of completing the packaging of the bottles, or even if the bottles 10 were grasped, the grasping force was weak and the bottles 10 dropped during the packaging.

Recent boxing machines are unmanned and have no operators. Therefore, even if the flexible member gripping member 9a is damaged, it is not known and the operation is continued as it is, and it becomes clear that a product box with a shortage of members flows to the downstream line. At this time, a large number of insufficient product boxes have already occurred in the downstream line. In order to prevent this, before grasping the bottle, it is detected whether or not the flexible material holding member 9a is damaged, and if the flexible material holding member 9a is damaged, the operation is stopped. Therefore, it is necessary to prevent the production of defective product boxes due to a shortage of personnel.

The present invention is proposed in view of the above problems, and an object thereof is to provide a packaging device that does not generate a defective product box due to a shortage of the number of products in the downstream line.

[0007]

In order to achieve the above object, the present invention provides an elevating device which is attached to a column so as to be able to ascend and descend, a gripper head which is attached to the elevating device so as to be movable in a horizontal direction, and the gripper head. A gripper holder attached to the gripper holder and a plurality of grippers attached to the gripper holder, and each gripper is a holding tube communicating with the pressure fluid source and a flexible member with a gap provided inside the holding tube. In a boxing device configured with a holding member made of pressure, pressure chamber forming means for forming a pressure chamber in a pressure fluid path between the gap and the pressure fluid source when the gripper does not hold a bottle, and When the flexible material gripping member has a damaged part and the pressure air in the pressure chamber leaks to the outside from the damaged part and the pressure in the pressure chamber decreases, this pressure decrease is grasped by the next bottle grasping and the descent process is started. Inspection And it comprises a pressure detecting means for stopping in a state before the start of the bottle gripping lowering step a case packer with.

[0008]

The boxing device of the present invention is constructed as described above, and the pressure chamber forming means is operated during the ascending process after the completion of the boxing so that the gripper holding cylinder and the flexible member are provided in the middle of the pressure fluid path. If a flexible material gripping member has a damaged part, the pressure air in this pressure chamber leaks to the outside from this damaged part and this pressure is formed. The pressure in the chamber drops. This pressure drop is detected by the pressure detecting means before the start of the next bottle gripping and descending process, and the present packaging device is stopped in the state before the start of the bottle gripping and descending process.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The boxing device of the present invention will now be described with reference to an embodiment shown in FIGS. 1 and 2. In FIG. 1, 1 is a support column and 2 is a linear bearing (not shown) on one side of the support column 1. An elevator device 7 mounted so as to be movable up and down via a gripper head 7 mounted on one side of the elevator device 2 so as to be able to move back and forth (movement in the directions of arrows A and B) via a linear bearing (not shown). , 6 is a horizontal drive device for moving the gripper head 7 in the front-back direction (directions of arrows A and B), 8 is a gripper holder attached to the gripper head 7, and 9 are a plurality of pieces vertically mounted on the gripper head 7 (the number of bottles to be packed in a box and The same number of grippers 9a are gripping members made of a flexible material (gripper rubber) of the gripper 9, and the holding cylinders of the gripper 9 (FIG. 5, FIG. 5) are provided outside the gripping members 9a made of a flexible material.
6 (see 15 in FIG. 6), and there is a gap between the holding cylinder 15 and the flexible member holding member 9a.

1 and 2, reference numeral 12 denotes a first pressure fluid passage between the gripper holder 8 and the pressure fluid source.
An electromagnetic valve, 13 is a second electromagnetic valve provided in the pressure fluid path between the first electromagnetic valve 12 and the gripper holder 8, and 14 is a pressure fluid path between the second electromagnetic valve 13 and the gripper holder 8. Equipped with a pressure gauge,
The second solenoid valve 13 and the first solenoid valve 12 communicate with the pressure fluid source.

Next, the operation of the boxing device shown in FIGS. 1 and 2 will be specifically described. (1) When the arranging of the bottles 10 by the arranging bottle conveyor 3 is completed, the elevating / lowering drive device 5 is actuated, and the elevating / lowering device 2, the gripper heads 7, the respective gripper holders 9, and the flexible member gripping members 9a.
And are lowered to cover the heads of the respective bottles 10 with the respective flexible member holding members 9a. At this time, these flexible material holding members 9a are in the state of FIG. The solenoid valve 12 is energized and is in the closed position. (2) When the heads of the bottles 10 are covered with the gripping members 9a made of flexible material as described above, the first solenoid valve 12 and the second solenoid valve 1
3 is brought into a non-energized state, these are moved to the open position, and the pressure air of a predetermined pressure is applied to the first solenoid valve 12 → the second solenoid valve 13 → the gripper holder 8 → the holding cylinder 15 of each gripper 9 and the grip made of a flexible material. The gripping member 9a made of a flexible material is inflated inward by feeding it to the gap A between the member 9a and the head of each bottle 10 is gripped. (3) Next, the lifting drive device 5 is operated to lift the lifting device 2, the gripper heads 7, each gripper holder 9, each flexible material holding member 9a, and each bottle 10. (4) Next, the horizontal driving device 6 is operated to move the gripper head 7, each gripper holder 9, each flexible material holding member 9a, and each bottle 10 in the direction of the arrow A, so that each bottle 10 is moved to the box 11.
Position directly above. (5) Next, the lifting drive device 5 is operated to lower the lifting device 2, the gripper head 7, each gripper holder 9, each flexible material gripping member 9a, and each bottle 10, and each bottle 10 is placed in the box 11.
Insert inside. (6) Next, the first solenoid valve 12 and the second solenoid valve 13 are energized, they are moved to the closed position, the pressure air in the space a is released, and the flexible material gripping members 9a are returned to their original positions. After returning to the state, each gripper 9 is released from each bottle 10. (7) Next, the elevating / lowering drive device 5 is operated to elevate the elevating / lowering device 2, the gripper head 7, each gripper holder 9, each flexible material gripping member 9a, and each bottle 10 to complete the packaging. (8) During the ascending process after completion of the packaging, the first solenoid valve 12
And, the second solenoid valve 13 is de-energized, these are moved to the open position, the pressure air of a predetermined pressure is sent to the above-mentioned gap b,
Next, the second solenoid valve 13 is energized and moved to the closed position, and the pressure chamber is formed in the pressure fluid path (piping) between the flexible member holding member 9a of each gripper 9 and the second solenoid valve 13. To form. If the flexible member holding member 9a has a damaged portion, the pressure air in the pressure chamber leaks to the outside from the damaged portion, and the pressure in the pressure chamber decreases. This pressure drop is detected by the pressure gauge 14 before the start of the next bottle gripping and descending process, and the main packaging device is stopped in the state before the start of the bottle gripping and descending process, and an alarm signal is sent from the control device (not shown). send. If the pressure drop is not detected, the first
The solenoid valve 12 is energized (closed), the second solenoid valve 13 is de-energized (open), the pressure at the above interval b is released, the flexible member gripping member 9a is released, and the bottle is gripped and lowered. To continue the cartoning.

The above-described pressure air leak detection is performed every cycle, but in order to prolong the life of the flexible material holding member 9a, it is performed every predetermined cycle (for example, once every 30 cycles). Good.

[0013]

As described above, the boxing device of the present invention operates the pressure chamber forming means during the ascending step after the boxing is completed, and the gripping cylinder and the flexible member holding member of the gripper are provided in the middle of the pressure fluid path. If there is a damaged part in the gripping member made of flexible material, the pressure air in this pressure chamber leaks to the outside from the damaged part and the pressure in this pressure chamber is formed. Is coming down. This pressure drop is detected by the pressure detection means before the start of the next bottle gripping and descending process, and the main packing device is stopped in the state before the bottle gripping and descent process is started. Operate to form a pressure chamber in the middle of the pressure fluid path that communicates with the gap between the holding cylinder of the gripper and the flexible material gripping member, and if the flexible material gripping member has a damaged part, The pressure air in the pressure chamber leaks to the outside from the damaged portion, and the pressure in the pressure chamber decreases. This pressure drop is detected by the pressure detection means before the start of the next bottle gripping and descending process, and the boxing device is stopped in the state before the bottle gripping and descent process is started. It has the effect of not causing it.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a packaging device according to the present invention.

FIG. 2 is a system diagram showing the pressure fluid path.

FIG. 3 is a side view showing a conventional boxing device.

FIG. 4 is a system diagram showing the pressure fluid path.

FIG. 5 is a vertical sectional side view showing a state before gripping the bottle head of the gripper.

FIG. 6 is a vertical cross-sectional side view showing a state after gripping the bottle head of the gripper.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support 2 Lifting device 7 Gripper head 8 Gripper holder 9 Gripper 9a Gripping member made of flexible material 10 Bottle 12 Pressure chamber forming means (first solenoid valve) 13 Pressure chamber forming means (second solenoid valve) 14 Pressure detecting means 15 Holding cylinder i Gap

Claims (1)

(57) [Scope of utility model registration request] 1. An elevating device attached to a column so as to be able to ascend and descend,
A holding cylinder that has a gripper head attached to the lifting device so that it can move in the horizontal direction, a gripper holder attached to the gripper head, and a plurality of grippers attached to the gripper holder, and each gripper communicates with a pressure fluid source. And a holding member made of a flexible material, which is arranged inside the holding cylinder with a gap, between the gap and the pressure fluid source when the gripper is not holding a bottle. Pressure chamber forming means for forming a pressure chamber in the pressure fluid path and the flexible material gripping member have a damaged portion, and the pressure air in the pressure chamber leaks to the outside from the damaged portion and the pressure of the pressure chamber is When the pressure drops, the packaging is characterized by including a pressure detection means for detecting the pressure drop by the next bottle gripping and starting the descent process and stopping the boxing device before the descent process starts. Dress .