JP2000335506A - Filling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filling device in which even if the content is relatively heavy in its weight, the content can be filled automatically in a bag without being damaged by shock occurred during its falling. SOLUTION: A filling device 1 is constructed such that a supplying port 3' of a content supplying device 3 is mounted above a bag supporting block 2 for supporting a bottom part of the bag, a pair of receiving levers 5 extending in parallel to each other in opposition are arranged between a bag supporting block 2 and the supplying port 3' at both sides of the bag supporting block 2 in such a way that they can be separated from each other and ascended or descended, and further an ascending or descending device 6 for cooperatively ascending or descending the receiving levers 5 are connected to the receiving levers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a filling device suitable for filling relatively heavy contents such as potatoes and onions into bags without damaging them.

[0002]

2. Description of the Related Art Conventionally, a support base for supporting the bag bottom is provided below a supply nozzle provided at a lower end of a weighing hopper, and a bag placed in an open state on the support base receives the supply nozzle from the supply nozzle. A filling device for dropping and filling contents having a predetermined weight is disclosed in Japanese Utility Model Publication No. Sho 49-43004. Since the above-mentioned conventional filling device is a device for filling light and hard-to-break powdery granules, even if the contents are dropped directly into the bag from the upper supply nozzle, the quality of the filled contents is exceptionally high. No inconvenience occurs. However, if the contents are relatively heavy and soft solids such as potatoes and onions, they may be damaged by the impact of the drop, and the commercial value may be reduced.

[0003]

SUMMARY OF THE INVENTION The present invention provides a filling device capable of automatically filling a bag even if the contents are heavy and easily damaged, without being damaged by the impact of dropping. That is the task.

[0004]

According to the filling device of the present invention, a supply port of a contents supply device is provided above a bag support for supporting a bag bottom, and the bag support is provided on both sides of the bag support. And a pair of receiving rods extending in parallel and opposed to each other and arranged so as to be able to move up and down, and to move up and down in conjunction with the pair of receiving rods. It is configured by connecting a lifting device.

[0005] An empty bag is placed on the bag support in an open state, and a pair of receiving rods are raised by a lifting / lowering device toward the opening of the bag. And the contents are discharged from the supply port of the contents supply device into the bag in this state. Then, the contents are received in the middle by a pair of receiving rods approaching each other, and the impact due to the fall is alleviated. As the height of the contents deposited on the pair of receiving rods increases, the pair of receiving rods is gradually lowered by the elevating device, and finally, the contents received by the pair of receiving rods are bagged. After lowering to the bottom, the pair of receiving rods are separated from each other, and the accumulated contents are dropped into the bag.

[0006] A bag mouth gripping device that opens and supports the bag mouth can be provided above the bag support base. With this configuration, it is possible to prevent the bag mouth from closing or the bag from falling down during the supply of the contents. The pair of receiving rods may be movable below the bag support. Thereby, the bag can be supplied and discharged onto the bag support from the direction intersecting the axis of the receiving rod.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIGS. 1 to 3,
The filling device 1 of the present invention includes a bag support 2 on which a bag A is placed.
A contents supply device 3 installed above the bag support 2 to supply contents such as potatoes into the bag A, and a bag support 2
And a bag mouth gripping device 4 that opens and holds the bag mouth of the bag A,
A pair of receiving rods 5 arranged between the bag support base 2 and the supply port 3 ′ of the content supply device 3 so as to be able to move up and down and to be able to contact and separate from each other, and extending in parallel to face each other; An elevating device 6 for elevating and lowering the rod 5 in conjunction therewith.

A vibration device for vibrating the bag supporting table 2 is connected to the lower surface of the bag supporting table 2. After filling the contents, the bag A on the bag supporting table 2 is vibrated so that the contents are evenly distributed without gaps. It is. As shown in FIG. 2, a bag feeding machine 8 is provided in front of the bag support base 2, and the bag feeding machine 8 supplies the bags A one by one in a state of standing up with the bag mouths up. It has become. As shown in FIG. 1 and FIG.
Has a weighing device (not shown), and a supply port 3 ′ provided at the lower end thereof is located immediately above the bag support base 2,
When the gate of the supply port 3 'is opened, the contents of a predetermined weight measured by the weighing device are discharged from the supply port 3'.

As shown in FIG. 1, the bag holding device 4 comprises a pair of holding plates 9 for holding both ends of the bag mouth, and holding plates 9 at the lower end.
And a pair of turnbuckle portions 11 each having one end pivotally attached to the swing arm 10.
A connecting rod 12 having both ends pivotally attached to the other end of the turnbuckle portion 11, and a rotating rod 1 fixed to an intermediate portion of the connecting rod 12.
3, an air cylinder 14 for rotating the rotating rod 13,
And a suction cup (not shown) opposing the bag mouth so as to be able to freely contact and separate from the bag mouth.
Are arranged so as to sandwich the supply port 3 ′.

When the bag feeder 8 feeds the bag A onto the bag support 2, the turnbuckle portions 11 and the connecting rods 13 on both sides are arranged in a straight line so that a pair of swing arms is provided. 1
0 is swung so that the holding plate 9 provided at the lower end thereof moves away. Then, when the bag A is supplied in an upright state on the bag support 2, the both ends of the bag mouth are sandwiched by the sandwiching plates 9, and the front and rear suction cups are brought closer to each other to be sandwiched by the sandwiching plates 9. Adsorb to the front and rear outer surfaces of the bag mouth. Before filling the contents, the rod of the air cylinder 14 is retracted to rotate the rotating rod 13 clockwise in FIG.
Is turned clockwise to pull the pair of turnbuckle portions 11. As a result, the swing arms 10 on both sides swing so that the holding plate 9 provided at the lower end thereof approaches, and the bag mouth of the bag A is loosened. Further, the suction cups adsorbed on the front and rear surfaces of the bag mouth are separated from each other to open the bag mouth.

As shown in FIGS. 1 to 3, the pair of receiving rods 5 project horizontally so that their axes intersect with the direction in which the bag A enters, and the base ends of the receiving rods 5 are the same. Each of the pair of turning arms 15 is fixed to a tip of a pair of turning arms 15 that turn in a vertical plane. At the base end of the rotating arm 15, it faces the front and rear part of the bag support 2 and projects horizontally in parallel with the receiving rod 5.
The distal ends of the pair of rotation shafts 16 are fixedly attached. In addition, a pair of rotary cylinders 17 provided in the elevating device 6 are connected to the base ends of the rotating shafts 16, respectively.

Since the rotary cylinders 17 rotate in opposite directions, when the rotary cylinder 17 is driven to rotate the rotation shaft 16, the rotation arms 15 rotate in opposite directions. As a result, as shown in FIG. 3, the pair of receiving rods 5 projecting from the tip of the rotating arm 15 abut on each other in a vertical plane passing through the middle part in the front-rear direction of the bag support 2, 2 so as to move away from above and separate from each other.

As shown in FIG. 1 to FIG.
Is a frame 18 disposed on the side of the bag support 2 and a frame 1
8, a guide rail 20 erected at four corners of the frame 18, and a guide rail 2 mounted on both sides of the front and rear portions of the lift frame 19.
0, and a support frame 22 projecting from the inner surface of the lifting frame 19 toward the bag support 2.
And an air cylinder 23 suspended from the upper surface of the frame 18
And

As shown in FIG. 2, a pair of rotary cylinders 17 for rotating the pair of receiving rods 5 are attached to the front and rear of the outer side of the support frame 22, respectively, and are connected to the respective rotary cylinders 17. The tip of the rotating shaft 16 is supported by the inside of the support frame 22. As shown in FIGS. 1 and 3, the tip of a rod extending below the air cylinder 23 is fixed to the bottom surface of the lifting frame 19, and when the rod of the air cylinder 23 is retracted, the lifting frame 19 is raised. The pair of receiving rods 5 supported by the lifting frame 19
Rises to extend the rod of the air cylinder 23, so that the elevating frame 19 is lowered and the pair of receiving rods 5 is also lowered.

The range of lifting by the lifting device 6 is such that when the rotating arm 15 is rotated and the pair of receiving rods 5 are in contact with each other near the top of the rotation, the pair of receiving rods 5
Is a range that moves up and down between the bag support 2 and the supply port 3 ′ of the content supply device 3. When the lifting frame 19 is lowered to the lower limit position and the pair of receiving rods 5 is rotated downward, the pair of receiving rods 5 moves to a position lower than the bag support base 2 as shown in FIG. Therefore, the bag supply machine 8 does not hinder the bag A from being supplied above the bag support base 2.

The filling device 1 of the present invention is used as follows. In advance, the rod of the air cylinder 23 of the elevating device 6 is extended to lower the elevating frame 19, and the tip of the rotating arm 15 is rotated downward, so that the pair of receiving rods 5 is lowered below the bag support base 2. To be placed. Further, the holding plate 9 and the suction cup of the bag mouth gripping device 4 are separated from each other. In this state, the bag feeding machine 8 supplies one bag A upright above the bag support base 2.

Next, the bag A placed on the bag support 2
Both sides of the bag mouth are sandwiched by the holding plates 9 of the bag mouth gripping device 4, and a suction cup (not shown) is brought close to the bag mouth to be sucked on the front and rear surfaces of the bag mouth.
Next, the rod of the air cylinder 14 of the bag mouth gripping device 4 is retracted so that the holding plates 9 approach each other, and the suction cups are separated to open the bag mouth of the bag A. Further, the rod of the air cylinder 23 of the elevating device 6 is retracted, and the elevating frame 19 and the pair of receiving rods 5 supported by the elevating frame 19 are raised.

Thereafter, the rotary cylinder 17 is driven to rotate the rotating shafts 16 in opposite directions.
The rotating arm 15 and the pair of receiving rods 5 fixed to the end thereof are pivoted upward, so that the pair of receiving rods 5 is slightly below the bag opening of the bag A so as to sandwich the bag A from front and rear. Get closer to each other. At this time, the interval between the pair of receiving rods 5 is slightly smaller than the diameter of the contents. In this state, the supply port 3 ′ of the content supply device 3 is opened, and the content is discharged toward the bag A. The contents discharged from the supply port 3 ′
Once received by the pair of receiving rods 5, it does not drop directly to the bag bottom.

When the discharge of the contents is started, the rod of the air cylinder 23 of the elevating device 6 is slowly extended. Along with this, the elevating frame 19 and the pair of receiving rods 5 supported by the elevating frame 19 slowly descend together with the contents accumulated on the receiving rod 5, so that the height of the accumulated contents gradually increases. However, the vertex keeps an almost constant distance from the supply port 3 '. When the discharge of the content of the set weight is completed, the supply port 3 ′ of the content supply device 3 is closed, and the pair of receiving rods 5 are adjusted to a height substantially matching the upper surface of the bag support base 2 (the height of the bag bottom). ), And then drive the rotary cylinder 17 to rotate the rotary arms 15 and 1
The pair of receiving rods 5 are pivoted downward, thereby separating the pair of receiving rods 5 and dropping the contents deposited thereon onto the bag bottom.

Next, the bag support 2 is vibrated to level the contents so that the contents are uniformly filled in the bag A without any gap.
The bag A is carried out toward the bag mouth closing device or the like. When the bag A enters and leaves the bag support 2 along the axis of the receiving rod 5, it is necessary to move the pair of receiving rods 5 horizontally without moving the pair of receiving rods 5 so as to make them come and go. Can be.

[0021]

According to the first aspect of the present invention, even if relatively heavy contents such as potatoes are dropped from the upper contents supply device into the bag, the relatively heavy contents are dropped by the pair of receiving rods. Since the contents are received and gradually lowered toward the bag bottom, the contents are not damaged by the impact of the drop. According to the configuration of the second aspect, it is possible to prevent the bag mouth from closing or the bag from falling and the contents from spilling out of the bag while the contents are being supplied. According to the configuration of the third aspect, it is possible to supply the bag above the bag support base or discharge the bag after filling the contents from the direction intersecting the axis of the receiving rod.

[Brief description of the drawings]

FIG. 1 is a front view of a filling device according to an embodiment of the present invention.

FIG. 2 is a plan view of the above.

FIG. 3 is a side view of the above.

[Description of Signs] 1 Filling device 2 Bag support base 3 Contents supply device 3 'Supply port 4 Bag mouth gripping device 5 Receiving rod 6 Elevating device 8 Bag feeding machine 9 Clamping plate 10 Swing arm 11 Turnbuckle part 12 Connecting rod DESCRIPTION OF SYMBOLS 13 Rotating rod 14 Air cylinder 15 Rotating arm 16 Rotating axis 17 Rotary cylinder 18 Frame 19 Lifting frame 20 Guide rail 21 Guide roller 22 Support frame 23 Air cylinder A bag

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E003 AA05 AB02 BA06 BB01 BB04 BC02 BD03 CA01 CA02 CB03 CB06 DA03 3E018 AA04 AB03 BA06 BA07 BB01 CA10 DA02 EA01 EA10 3E055 AA07 CA10 CB02 DA03 DA14 EA01 FA01

Claims (3)

[Claims] 1. A supply port of a contents supply device is provided above a bag support that supports the bottom of a bag. Opposite sides of the bag support are provided between the bag support and the supply port. A pair of receiving rods extending in parallel to each other and arranged so as to be able to approach and separate from each other and to be able to move up and down, and an elevating device that moves up and down in conjunction with the pair of receiving rods is connected to the pair of receiving rods. apparatus. 2. The filling device according to claim 1, further comprising a bag mouth holding device that opens and supports the bag mouth above the bag support base. 3. The filling device according to claim 1, wherein the pair of receiving rods can be moved below the bag support base.