JPH0747288Y2 - Directional change mechanism in powder packaging machine - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a powdery or granular material for measuring the powdery or granular material such as grain, feed, cement, etc. and filling it into a packaging bag, that is, a bag continuously and automatically. The present invention relates to a direction changing mechanism in a transfer line for circulating a bag cap fixing device in a packaging device.

[0002]

2. Description of the Related Art Conventionally, what has been put into practical use as this type of powder and granular material packaging device is that a weighing hopper scale is provided at the upper part of a frame, and a bag mouth fixing mechanism and a predetermined bag can be accommodated at the lower part thereof. It is common to have an elevated platform structure with a certain height. In addition, a slat belt conveyor for movement may be provided below.

[0003]

[Problems to be Solved by the Invention] In this conventional device,
There is a problem that a large amount of installation space is required for the mechanism for changing the direction of the mouthpiece fixing mechanism equipped with the bag at the corner of the transport line.

An object of the present invention is to provide a direction changing mechanism in a powder or granular material packaging device which can reduce the installation space of the powder or granular material packaging device.

[0005]

A direction changing mechanism in a powder or granular material packaging apparatus according to the present invention for achieving the above-mentioned object is provided between a front-stage transport mechanism and a rear-stage transport mechanism which have different transport directions. In the direction changing mechanism that changes the direction of the mouthpiece fixing mechanism conveyed at the position, the center of the mouthpiece fixing mechanism can be rotated from the carrying direction of the preceding carrying mechanism to the carrying direction of the latter carrying mechanism. The rotating part support plate supported by the above and the spinneret fixing mechanism, which is installed on the lower side of the rotating part support plate in an inclined state so as to gradually lower in the conveying direction, and is conveyed by the conveying mechanism of the preceding stage by its own weight. A group of rollers to be naturally conveyed, a stopper for temporarily stopping the mouthpiece fixing mechanism at the end portions of these rollers, and a support for the rotating portion while the mouthpiece fixing mechanism is stopped by the stopper. And having a rotary mechanism for rotating the.

[0006]

In the direction changing mechanism of the powder or granular material direction device having the above-described structure, the die fixing mechanism which has been conveyed from the conveying mechanism in the preceding stage is naturally conveyed on the roller group by its own weight, and at the end portion of the roller group. It is temporarily stopped by the stopper.
After that, the rotating part support plate is rotated by the rotating mechanism from the carrying direction of the former carrying mechanism to the carrying direction of the latter carrying mechanism around the center of the mouthpiece fixing mechanism, and when the rotation is completed, the stopper is removed and the mouthpiece is The fixing mechanism is naturally transported to the downstream transport mechanism by its own weight.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the illustrated embodiments. First, an outline of a powder or granular material packaging device to which the direction changing mechanism according to the invention is applied will be described. FIG. 1 is a plan view of the powder and granular material packaging device, and FIG. 2 is a front view of a part thereof.

In FIG. 1 and FIG. 2, reference numeral 1 denotes an entire suspension frame which constitutes a rectangular gate type frame, on which a transport mechanism divided into required blocks, that is, six loop conveyors C1 to C1 in this embodiment. C6 is installed almost horizontally, and a rectangular endless transfer line is constituted by these loop conveyors C1 to C6, and turn frame type direction changing device 2 according to the present invention is installed at each corner thereof. . Each of the loop conveyors C1 to C6 has an endless structure,
Each of them has an independent drive mechanism 3.

On the loop conveyors C1 to C6, an appropriate number of mouthpiece fixing mechanisms 4 circulated and conveyed by a conveying line are suspended, and these mouthpiece fixing mechanisms 4 are loop conveyors C1 to C6.
It is freely movable in the driving direction of C6, and at each corner, it is converted to a right angle direction by the direction changing mechanism 2. The middle of the loop conveyor C1 is an empty bag setting section 5 for mounting the empty bag B on the mouthpiece fixing mechanism 4. here,
The empty bag B is manually set on the mouthpiece fixing mechanism 4 and temporarily tightened, and after the hanging string is hung, it is finally tightened, and then the mouthpiece fixing mechanism 4 is transferred to the next step.

A bag inflating mechanism 6 is installed on the loop conveyor C3, and an automatic weighing and filling mechanism 7 is arranged at the loop conveyor C4. The bag inflating mechanism 6 blows air into the empty bag B set in the mouthpiece fixing mechanism 4 to inflate it to create a state in which powder particles can be easily filled immediately before weighing.

By providing the bag inflating mechanism 6, the weighing work and the inflating work can be performed in parallel at the same time, so that the processing capacity of the system is significantly larger than that in the case where the bag is inflated on the conventional weighing machine. Improve to. In the automatic weighing and filling mechanism 7, the work of weighing and filling the powdery particles into the empty bag B set in the mouthpiece fixing mechanism 4 is automatically performed. In the automatic weighing and filling mechanism 7, a platform scale 9 having a load cell 8 for load detection is installed on the ground, and a frame 10 is installed on the platform scale 9. On the frame 10, a charging chute 11 required for measurement control, various lifting mechanisms 12 and a cap fixing mechanism 4 on the loop conveyor C4 are arranged. A screw feeder 13, a cut damper 14, and a bellows 15 for supplying powder particles are connected to the charging chute 11.

Incidentally, in the conventional apparatus, the weighing equipment is usually placed on the upper part of the bag, but in the present embodiment, by providing this on the ground, the height of the equipment is remarkably higher than that of the conventional equipment. It can be lowered and the system is economical.

In the automatic weighing and filling mechanism 7, when the load of the granular material filled in the bag B reaches a predetermined weighing set value, the cap of the bag B and the hanging string C are automatically released.
Subsequently, by driving the weighing slat conveyor 16 and the carry-out slat conveyor 17, the bag B filled with a predetermined amount of powder or granules is carried out and transferred to the next step, for example, a reversing mechanism or the like. On the other hand, the mouthpiece fixing mechanism 4 released from the bag B is automatically transferred to the empty bag setting section 5 by the loop conveyors C5 and C6.

All of the above operations are automatically processed except for the operation of suspending the empty bag B, and their control, automatic weighing and filling, etc. are controlled by a control circuit (not shown).

Next, a concrete example of the mechanism or device of each part is shown in FIG.
The following will be described. FIG. 3 shows an example of the structure of the mouthpiece fixing mechanism 4 shown in FIG. 1. The loop conveyor of FIG.
The mouthpiece fixing base plate 22 is placed on the loop conveyor 21 corresponding to any one of C1 to C6, and the cylindrical outer cylinder 23 and the inner side, which serve as an inlet for powder particles, are placed below the mouthpiece fixing base plate 22. Tube 24
Is attached. Further, on the outer cylinder 23, a fixed band 25 that constitutes a mouth holding mechanism and a releasing mechanism thereof, a spring 26 that presses the fixing band 25, and an operation lever 27 are provided. Here, the fixing band 25 is the spring 2
Since it is pulled by 6, it is always in the closed position, that is, the position indicated by the solid line. By this mechanism, the mouth of the bag B is attached to the outer cylinder 23 and automatically released.

When mounting the empty bag B, the operating lever 27 is pushed in the direction of the arrow to open the fixing band 25, the mouth of the empty bag B is set around the outer cylinder 23, and then the operating lever 27 is released. For example, the empty bag B is fixed around the outer cylinder 23 by the fixing band 25. An arm 29 is projected in a horizontal direction from the outer cylinder 23, and a hanging strap cam 3 that constitutes a hanging strap holding mechanism and its releasing mechanism is provided on the arm 29.
0, a hook 31 and a spring 32 are attached. Both the hanging strap cam 30 and the strap hook 31 are rotatably supported by a pivot 33, and are normally pulled by a spring 32 so that the strap C of the bag B is hooked as shown by the solid line. It is in a state.

To remove the hanging strap C, the hanging strap cam 30 is pushed in the direction of the arrow, and the hanging hook 31 is rotated to the position of the dotted line 31 ', so that the hanging strap C is automatically removed. When the cam 30 for the hanging string is released, the hook 31 for the string is the spring 3.
Return to the original position by 2.

As described above, in the mouthpiece fixing mechanism 4, only the empty bag B is manually attached, but its removal can be automatically performed. Of course, the operation of the operation lever 27 and the hanging strap cam 30 is controlled by the control circuit shown in FIG.

FIG. 4 shows details of the bag inflating mechanism 6 shown in FIG. A blower 3 which is an air source for inflating a bag is mounted on a pedestal 34 supported by the whole suspension pedestal 1 of FIG.
5 is installed and connected to the flange 37 via a bellows type air duct 36. The air duct 36 is the cylinder 3
8 can be moved up and down, and the flange 37 at its lower end
Is the fixed base plate 2 of the base which is stopped by the stopper cam 39.
It is closely attached to 2. The stopper cam 39 is driven by the stopper cylinder 40 from the solid line position to the dotted line position.

The flange 37 is provided with a seal member 37a for preventing air leakage when air is blown in, and the flange 37 is brought into close contact with the base fixing base plate 22 via the seal member 37a. When the stopper cam 39 stops the cap fixing base plate 22 at a predetermined position by a detecting means such as a photoelectric switch, the cylinder 38 is automatically operated to bring the flange 37 into close contact with the base fixing base plate 22, The blower 35 operates to blow air into the bag B, and the bag B automatically inflates. After a predetermined time, the blower 35 is stopped, and if it is confirmed that the preceding bag B has been metered and filled with the granular material and carried out, the stopper cylinder 40 operates and the stopper cam 39 opens in the dotted line position. Then, the base fixing mechanism 4 having the bag B which has been inflated and is inflated is transferred to the automatic weighing and filling mechanism 7 of the next stage by the loop conveyors C3 and C4. All of these operations are also controlled by the control circuit.

5 to 8 show the details of the automatic weighing and filling mechanism 7 installed in the loop conveyor C4 of FIG.
5 and 6 are a front view and a side view of the filling portion, FIGS. 7 and 8 are enlarged views of a part thereof, FIG. 7 showing a fixed state of the bag B, and FIG. 8 showing a released state of the bag B. There is.

The loop conveyor C4 is vertically movable by a conveyor vertical cylinder 41, and the bellows 15 connected to the powder particle feeding chute 11 is also vertically movable by a bellows vertical cylinder 42. The mouthpiece fixing mechanism 4 in which the bag B inflated by the bag inflating mechanism 6 is mounted, has a throwing chute attached to a predetermined position on the loop conveyor C4, that is, the tip of the bellows 15 in response to a signal from a position detecting means such as a limit switch. It stops at a position facing the flange 43. Here, the bellows vertical cylinder 42 is operated to bring the charging chute flange 43 into close contact with the mouthpiece fixing mechanism 4. In this case, loop conveyor C4
The bellows up / down guide 45 on the guide holding frame 44 mounted on the upper side ensures reliable contact. An annular seal member 46 is provided on the surface of the charging chute flange 43, and plays a role of dust proof.

In this state, the screw feeder 13, the cut damper 14 and the charging chute 11 are connected to the mouthpiece fixing mechanism 4.
Then, the bag B mounted on the container is put in a state in which the powder and granules can be filled, and thereafter, the control circuit performs the measurement setting control and the sequence control of the entire system. That is, the screw feeder 13 operates with the cut damper 14 open, and the powdery particles in the hopper 48 are loaded into the bag B via the loading chute 11. At the same time as the introduction of this
By the dust collecting port 49, the air in the bag B is suctioned and collected from between the outer cylinder of the charging chute 11 and the outer cylinder 23 and the inner cylinder 24 of the mouthpiece fixing mechanism 4 connected to the inner cylinder. The load of the powder or granular material put into the bag B is detected by the load cell 8 of the platform scale 9 through the frame 10.

In order to stabilize the bag B on the platform scale 9, the control circuit operates the conveyor up-down cylinder 41 by the size determined by the type of the bag B. At this time, the conveyor vertical cylinder 41 can be stably moved up and down by being guided by the conveyor vertical guide 50 attached to the frame 10, and the bag B is set on the weighing slat conveyor 16.

When the measured value reaches the set value, the screw feeder 13 is stopped by the control circuit and the cut damper 14
Is closed and the supply of powder is stopped. Then, by operating the hanging string removing cylinder 51 and pushing the hanging string cam 30 shown in FIG. 3, the hanging hook 31 is rotated and the hanging string C is automatically removed. Similarly, as shown in FIGS. 7 and 8, the mouth removing cylinder 52 is operated to push the operation lever 27 shown in FIG. 3 in the arrow direction to open the fixing band 25 and automatically fix the bag B. Cancel.

When the hanging string C and the mouth portion are released from the mouthpiece fixing mechanism 4, the conveyor up-and-down cylinder 41 operates to set the loop conveyor C4 at a predetermined position, that is, the loop conveyor C3,
The mouthpiece fixing mechanism 4 which is returned to the level of C5 and released from the bag B passes through the loop conveyor C4 driven by the drive mechanism 3a and the loop conveyors C5 and C6, and is empty at an intermediate position of the loop conveyor C1 in FIG. It is sent back to the bag setting section 5, and then the mouthpiece fixing mechanism 4 in which the next bag B is set is sent from the bag inflating mechanism 6 of FIG. 1 onto the loop conveyor C4. Next, the weighing slat conveyor 16 and the carry-out slat conveyor 17 shown in FIG. 2 operate,
The bag B filled with the granular material is automatically carried out to the next step.

9, 10, and 11 are a plan view, a front view, and a side view showing details of the direction changing mechanism 2 according to the present invention. The driving direction of the loop conveyor 61 of, for example, C1 in the preceding stage and the loop conveyor 62 of C2 in the next stage are actually at right angles. At a corner between them, a rotary shaft 63 penetrating the whole suspension frame 1 is attached via a bearing 64, and a rotary part support plate 65 is held at the lower end of the rotary shaft 63. This rotating part support plate 65 is used for the loop conveyor 6
1 is supported by a rotary shaft 63 so as to be capable of changing direction between a carrying direction of 1 and a carrying direction of a loop conveyor 62, a turn cylinder 66 is installed on the whole suspension frame 1, and an arm 67 connected to the rod thereof. The rotating shaft 63 and the rotating portion support plate 65 are rotated by 90 degrees via.
Reference numeral 68 is a stopper that regulates the rotation range.

As shown in FIG. 11, roller mounting members 69 are provided on both sides of the rotating portion support plate 65, and a large number of rollers 70 are mounted inside thereof. As shown in FIG. 10, the roller mounting member 69 and the roller 70 are installed in a slightly inclined state so as to gradually descend in the traveling direction, and a stopper 71 is arranged at the end thereof.

When the base 22 for fixing the mouthpiece, which has been conveyed from the loop conveyor 61 in the preceding stage, rides on the roller 70,
It naturally moves in the tilt direction and is stopped by the stopper 71 at the end. When it is detected that the fixed base plate 22 has hit the stopper 71, the turn cylinder 66 is operated until it is stopped by the stopper 68, and as a result, the rotary shaft 63 and the rotary portion support plate 65 rotate 90 degrees. To do.

Therefore, if the level of the end of the roller mounting member 69 is adjusted to the level of the next-stage loop conveyor 62, the driving cylinder 72 is operated to rotate the stopper 71 from the solid line position to the dotted line position 71 '. By
The base 22 for fixing the base is naturally transferred onto the loop conveyor 62 at the next stage. In this way, the base fixing mechanism 4 can be easily turned 90 degrees.

In the above-described embodiment, the case where six loop conveyors C1 to C6 are used as the transport mechanism of the mouthpiece fixing mechanism 4 is shown, but this is merely an example and other than the loop conveyor. A transport mechanism may be used. Further, the transport line is not always square.

[0032]

As described above, in the direction changing mechanism in the powder or granular material packaging apparatus according to the present invention, the rotation direction of the rotary support plate is centered around the central portion of the mouthpiece fixing mechanism by the rotary mechanism and the transport direction on the side of the transport mechanism of the preceding stage. Therefore, the installation space can be suppressed to a size that allows the spinneret fixing mechanism to rotate, and the installation space for the powder or granular material packaging device can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view of a powder or granular material packaging device using a direction changing mechanism according to the present invention.

FIG. 2 is a front view.

FIG. 3 is a configuration diagram of a base fixing mechanism.

FIG. 4 is a configuration diagram of a bag inflating mechanism.

FIG. 5 is a front view of an automatic weighing and filling mechanism.

FIG. 6 is a side view of the automatic weighing and filling mechanism.

FIG. 7 is a partially enlarged view of the automatic weighing and filling mechanism showing a fixed state of the bag.

FIG. 8 is a partially enlarged view of the automatic weighing and filling mechanism showing a bag released state.

FIG. 9 is a plan view of the direction changing mechanism.

FIG. 10 is a front view of the direction changing mechanism.

FIG. 11 is a side view of the turning mechanism.

[Explanation of symbols]

 1 Whole Suspension Stand 2 Direction Change Mechanism 3 Drive Mechanism 4 Base Fixing Mechanism 5 Empty Bag Setting Section 6 Bag Inflating Mechanism 7 Weighing and Filling Mechanism 13 Screw Feeder 22 Base Fixing Base 63 Rotating Shaft 64 Bearing 65 Rotating Support Plate 66 Turn Cylinder 67 Arm 68, 71 Stopper 70 Roller

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Kikuo Yoshida 4-3154, Ono-cho, Ichikawa-shi, Chiba (56) References: Sho 60-33004 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A spinneret fixing mechanism that is transported while being positioned between a front-stage transport mechanism and a rear-stage transport mechanism that have different transport directions.
In the direction changing mechanism that changes the direction of the
How to transport the transport mechanism of the preceding stage centering on the center of the mechanism
From the above direction, the rotary part support plate rotatably supported in the carrying direction of the latter carrying mechanism , and the lower part of the rotary part supporting plate which is installed in an inclined state so as to gradually descend in the carrying direction. stop the rollers to naturally conveyed by its own weight to the die fixing mechanism that is transported by the transport mechanism, a stopper for temporarily stopping the die fixing mechanism at the termination of these rollers, the die fixing mechanism by the stopper
And a rotating mechanism for rotating the rotating portion support plate in a state where the rotating portion supporting plate is rotated .