JPH0620899B2 - Granular packer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to a packer device suitable for packaging powdered or granular material such as white rice, and more particularly to improvement of the mechanism of the powdery or granular material charging portion.

<Prior art and its problems> A packer device for packaging small particles, for example, white rice in various bags having different sizes and model numbers, has a chute for loading white rice fixed at a fixed height position. To prepare for
After setting the opening of the bag to the input port of this chute, drop the white rice into the bag from the input port of the chute and add it, and when the predetermined amount of input is completed, after heat sealing the opening of the bag, The packaged bag is transferred to the discharge mechanism. The bottom of the bag is supported by, for example, a receiving plate during the series of operations.

For this reason, for example, when changing the size of the bag from 5 kg to 10 kg, it is necessary to adjust the loading position of the backing plate to the optimum position each time the bag size is changed. It was troublesome. Therefore, when bags of various sizes have to be used in order to meet the needs of today's era of various small-quantity production, the work efficiency of the powder and granule insertion work is inevitably reduced. Also,
The materials of the bags used have been diversified with the high-mix low-volume production, and the bags made of materials that easily cause troubles such as breakage and wrinkles at the time of heat-sealing are also increasing.

Here, as a packaging device intended to carry out small-lot packaging efficiently, for example, a device as disclosed in Japanese Patent Laid-Open No. 62-4034 has already been known. This prior art is
In order to improve the efficiency of small packages, it is specifically intended to reduce the time spent discharging products and carrying packaging bags. Therefore, for that purpose, as a mechanism of the loading portion of the packaged product, a product pedestal rotatably supported by a cylinder, a feed screw type adjustment mechanism provided for adjusting the height position of the product pedestal, and The structure is provided with a curved discharge plate or the like for pushing out the packaged product.

Although this structure has realized the efficiency of small-sized packaging as such, it is compatible with small-lot production of a wide variety of products using bags of various sizes, especially the changes in bag size, as required for the above-mentioned white rice packaging. However, there are some things that are insufficient in terms of the quickness of the operation, ensuring the reliability of the seal related to the material of the bag, and the speed of the discharging operation of the product. That is, although the height of the product pedestal can be adjusted for some time, it takes time to adjust because the mechanism for that purpose is a feed screw type mechanism provided separately. Further, since the filling height position and the seal height position are at the same level, the sealing is performed in a state where a considerable load is applied to the sealing portion, and the reliability of the sealing state cannot always be obtained. Further, the curved discharge plate is operated every time the product is discharged, and it takes time to discharge the product.

The present invention has been made by paying attention to such a conventional technique, and can quickly and surely respond to the size change of the bag, and can stably seal the bag made of various materials and further fill the bag. An object of the present invention is to provide a packer device for powder particles that can quickly perform a series of operations from the discharge to the discharge.

<Means for Solving Problems> A packer device for powder and granules according to the present invention is a bag making device for continuously making bags of a required size from a long flat film tube, and this bag making device. While supporting the bag supplied from the device by the cradle mechanism, the powder particles are dropped and dropped, the opening of the bag that has already been charged is sealed, and the sealed bag is transferred to the discharge mechanism. The pedestal mechanism of the powder and granular material feeding device is composed of a vertically elongated slender frame and alternating upward and downward running vertically and vertically along this pedestal. And a pedestal that is connected to the pedestal and that can be raised or lowered according to running or stopping of the pedestal and can be stopped at a predetermined height position, and is rotatably connected to the pedestal. Height of the pedestal and the pedestal for transferring the sealed bag to the discharge mechanism And a control means for controlling the running / stopped state of the traveling body on the basis of bag size information from the bag making device, which rotates and tilts the backing plate by contacting the backing plate when it descends to the position. The predetermined height position at which the pedestal is stopped is the height position for powder and granular material support that supports the bottom of the bag for powder and granular material loading, and the height position for powder and granular material loading. The height position for sealing is set to be slightly higher, and the height position for charging the granular material is set for each bag having a different size by controlling the traveling body by the control means.

<Operation> In this packer device, a traveling body configured to be capable of alternately performing upward traveling and downward traveling along a vertically elongated slender frame causes the pedestal to be raised and lowered continuously and cyclically, During this ascending and descending motion,
Control the stop based on the bag size information from the bag making device,
As a result, the height of the pedestal for loading the granules that supports the bottom of the bag for loading the granules is set for each bag of different sizes, so it is possible to quickly respond to changes in bag size. And surely. Further, the traveling body causes the pedestal to perform a continuous cyclic raising and lowering operation, and the receiving plate rotatably connected to the cradle is abutted against the receiving plate tilting means in the continuous circulating raising and lowering operation. Since the sealed bag is transferred to the ejection mechanism by contacting, rotating and tilting, smooth and efficient transfer operation can be realized, and the structure for that is relatively simple. can do. Further, since the raising and lowering operation of the pedestal is the continuous raising and lowering operation as described above, the height of the sealing is slightly higher than the height of the height of the granular material feeding continuously after the completion of the feeding of the granular material. Since the position can be taken by the pedestal and the sealing can be performed with the pedestal changed to such a sealing height position, the load is not applied to the sealing part of the bag being sealed. It is possible, and even a weak bag can be stably sealed.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings by taking a packer device for white rice as an example.

The packer device 1 according to this embodiment includes a bag making device 2 and a polished rice feeding device 3. In other words, the bag making device 2 makes a bag 5 independent of the long flat film tube 4, the white rice 6 is put into the bag 5 by the white rice feeding device 3, the opening 7 is sealed, and the bag is packed. Has become. Although not shown, the bag making apparatus 2 is provided with a reflection type optical sensor (bag size determination sensor mechanism), which accurately determines the size of the bag 5 and outputs the signal as the number of pulses. Is transmitted to a pedestal mechanism 8 described later. The description of the other bag making apparatuses 2 is omitted.

The white rice feeding device 3 includes a swing arm 9, a chute mechanism 10 for feeding white rice, an expander mechanism 11, and a cradle mechanism 8. The description of the expander mechanism 11 that applies tension to the opening 7 of the bag 5 is omitted.

Swing Arm Mechanism The swing arm 9 has a rotation center 12 on the upper side and a sandwiching section 13 for grasping the opening 7 of the bag 5 near the lower side (tip portion). That is, the opening 7 of the bag 5 holds the opening 13
Then, the bag 7 is gripped, and rotated as it is, and the opening 7 of the bag 5 is transferred to a position below the chute mechanism 10 for charging white rice and set.

Shooting Mechanism A tank for white rice 6 (not shown) is provided above the shooting mechanism 10, and a variable charging port 14 is provided at the lower end of the shooting mechanism 10. The variable charging port 14 is composed of a pair of gates 15 having a U-shaped cross section, and the opening amount can be adjusted by rotating the lower ends so that they can move toward and away from each other by an air cylinder. A heat sealer 16 for sealing the opening 7 of the bag 5 is provided below the variable charging port 14.

Cradle mechanism A cradle unit 18 of the cradle mechanism 8 is assembled with a cradle 18 which is vertically movable. The pedestal 18 is attached to a loop-shaped chain 19 provided as a traveling body that travels along the pedestal portion 17. The chain 19 can be rotated forward / backward by a motor 20. Incidentally, 27 is a turnbuckle for giving proper tension to the chain 19. Then, the motor 20 is configured to make a correct forward / reverse rotation according to the number of pulses corresponding to the size of the bag 5 generated from the aforementioned optical sensor (not shown). Specifically, the pulse generator 28 attached to the rotation shaft of the sprocket driving the chain 19 counts the number of pulses corresponding to the rotation amount of the sprocket (movement amount of the chain 19), and this count number And the number of pulses from the above-mentioned optical sensor are compared to control the rotation of the motor 20. Further, a tilting receiving plate 22 is attached to the receiving base 18 via a hinge 21. This receiving plate 22
When the white rice 6 is loaded into the bag 5, the pedestal 18 is stopped at the loading height position A for a predetermined time to support the bottom of the bag 5 supported by the swing arm 9 and the loading is completed. Then, when the sealing is started, the pedestal 18 is elevated to the sealing height position M in order to remove the weight of the white rice 6 hanging on the sealing portion of the bag 23.

Then, the pedestal 18 is stopped at the sealing height position M for a certain period of time, and when the sealing is completed, the pedestal 18 starts descending to a starting position (a transfer height position shown by a solid line in FIG. 1 to be described later). At the same time, it descends to a position slightly lower than B), and at the same time, starts to rise again and repeats the above-mentioned operations. Then, when it reaches the transfer height position B in the middle of this descent, the receiving plate 2
2, the roller 24 provided as the receiving plate tilting means comes into contact with the receiving plate 22, and the receiving plate 22 rotates and tilts as shown in FIG.
Are transferred to the conveyor 26.

The height position of the loading position A of the cradle 18 changes according to the size of the bag 5. On the other hand, the sealing position M is a position raised by a certain number of pulses with respect to the loading position A corresponding to the size of the bag 5, and the transfer position B is always fixed by the positioning stopper 25. There is.

Next, the operation will be described.

Bag setting operation First, the swing arm 9 is rotated so as to approach the bag manufacturing apparatus 2 side, and the opening portion 7 of the bag 5 made by the bag manufacturing apparatus 2 is clamped and clamped by the clamping section 13. And the opening 7 of the bag 5
While gripping, rotate upward to position and set the opening 7 of the bag 5 below the chute mechanism 10.

Cradle raising operation Since the size of the bag 5 is previously determined by the bag size determination sensor mechanism in the bag making apparatus 2, the motor 20 is controlled by the pulse control as "position control" corresponding to the signal from the optical sensor. The pedestal 18 is raised to a predetermined loading position A by rotating the pedestal 18 in accordance with the size of No. 5. The charging position A is an optimum position for the bag 5, and is a position that can reliably support the bottom of the bag 5 while the white rice 6 is being charged.

White rice feeding operation A predetermined amount of white rice 6 is fed from the variable feeding port 14 of the chute mechanism 10.
Are put into the bag 5. At the time of this loading operation, since the bottom of the bag 5 is securely supported by the pedestal 18, the bag 5 does not become wrinkled or twisted. Then, when a certain amount of white rice 6 has been added, the heat seal body 16
Then, the opening 7 is clamped and welded and sealed. At the same time as the welding starts, the receiving plate 22 moves up to the sealing position M to support the weight of the white rice 6 and completely remove the weight of the white rice 6 hanging on the seal portion, so that the seal portion does not extend and is securely welded. Sealed. Thus, the bag 23 containing the white rice 6 is produced.

Catch lowering operation Upon completion of bag packing, the catch plate 22 (receiver 18) descends with the bag 23 containing white rice on it. Then, if necessary, it is temporarily stopped at the cooling position N for a predetermined time to further completely cool the seal portion. The cooling position N is a height position where the upper part of the bag 23 does not interfere with the rotation locus of the tip of the swing arm 9, so that the swing arm 9 rotates to pick up the next bag 5 at this stage. The work efficiency can be improved accordingly. Then, the pedestal 18 further descends, hits the positioning stopper 25, and stops at the transfer position B.

Bag transfer operation When the pedestal 18 reaches the transfer position B, the bottom of the receiving plate 22 contacts the roller 24 and tilts. Due to the inclination of the receiving plate 22, the bag 23 is separated from the receiving plate 22 and transferred onto the belt conveyor 26 below. At this time, since the seal portion is completely cooled, the seal portion does not burst even if there is a shock due to transfer.

<Effect> The packer device for powder or granular material according to the present invention, as described above, can quickly and surely respond to the size change of the bag, and can realize a smooth and wasteless transfer operation. Further, it is possible to stably seal even a bag having a weak strength, and for example, it is possible to greatly contribute to the efficiency improvement of the work of small-sized packaging of white rice in various bags having different sizes and model numbers.

[Brief description of drawings]

FIG. 1 is a schematic side view showing the entire packer device, FIG. 2 is an enlarged side view showing a cradle mechanism, and FIG. 3 is a second side view.
FIG. 3 is a side view seen from the direction of arrow III in the figure. 5 …… Bag 6 …… White rice (powdered granules) 8 …… Catch mechanism 18 …… Catch 22 …… Catch plate A …… Injection position B …… Transfer position M …… Seal position

Claims (1)

[Claims] 1. A bag-making device for continuously making bags of a required size from a long flat film tube, and powder particles while supporting a bag supplied from the bag-making device by a cradle mechanism. A packer device for powder and granules, comprising a powder and granule loading device for dropping and dropping a body, sealing the opening of a bag in which powder and granules have been loaded, and transferring the sealed bag to a discharge mechanism. The cradle mechanism of the granule loading device is a vertically elongated slender base, a traveling body that can alternately run upward and downward in both vertical directions along this platform, and this traveling body. A pedestal that is connected and can move up and down according to running and stopping of the traveling body and can be stopped at a predetermined height position, a pedestal rotatably connected to this pedestal, and a pedestal seal When the finished bag is lowered to the transfer height position for transferring it to the discharge mechanism, it contacts the receiving plate. And a control means for controlling the running / stopped state of the traveling body on the basis of bag size information from the bag making device, and further, the pedestal is stopped. The predetermined height position to be set is a height position for loading powder and granules that supports the bottom of the bag for loading the powder and granules, and a height position for sealing slightly higher than this height position for loading powder and granules, and A packer device for powdery particles, wherein a height position for loading powdery particles is set for each bag having a different size by controlling the traveling body by the control means.