JPS58193231A - Automatic charger for flat bag - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION In particular, the present invention relates to an apparatus for automatically loading flat packaging bags into a moving holder.

Automatically and continuously filling the contents into a packaging bag made of plastic film, paper, metal foil, or a laminate thereof, such as a regular three-sided seal pouch, standing pouch, or gusset bag; (2) Sealing. As shown in FIG. 1, as shown in FIG. In the turret-type flat bag loading device 3, during the process of circulating conveyance in the direction of the arrow (only a part of which is shown in FIG. 1),
Place the flat bag 7 (for example, a standing pouch) in the holder 2
In the same turret-type opening and forming device 4, pressurized air is blown into the inside of the flat bag 7 in the holder 2, and the opened and formed bag 7' is automatically loaded into the inner frame 2b. 2), then turret type filling device 5
, the bag 7' is filled with the contents 8, and the bag 7' is filled with the contents 8.
After manufacturing a sealed bag 7'' by heat-sealing the opening of ' with a turret-type 7-ru device 6,
The sealed bag 7'' is taken out from the holder 2 in the sealed bag unloading device 8 and sent to the next process.The holder 2 from which the sealed bag 7'' has been taken out is then removed from the holder 2 in the washing and drying device 9 to remove dirt from the adhered contents. A system is conceivable in which the product is transported on the conveyor 1 and goes through the same process again. Note that the sealing device is such that the holder 2 and therefore the bag 7'
A so-called belt sealer may be used, in which heat sealing is performed while the openings of the seals are aligned in series and proceed.

The system described above has all the advantages of automatically producing sealed bags filled with the contents at a high speed (for example, 200 bags per minute or more).

The entire object of the present invention is to provide an automatic loading device for flat bags into a holder, which can be applied to the system described in Section 2 above.

In order to achieve the above object, the present invention provides a device for automatically loading flat bags one by one into each moving holder, the device accommodating the holders and moving them along the circumferential direction. The lower tare, which rotates at a constant angular velocity ω (degrees/min), has a plurality of (X) pockets formed at equal pitches along its periphery, 1. Intermittent rotation consisting of stops and rotations at a constant angular velocity ω. - A plurality of flat bag storage cases arranged at an indexing pitch corresponding to the pockets along the downstream side from the vicinity of the feeding stencil of the holder above the outside of the turret; the pockets are located on the periphery of the upper turret. Vacuum suction power for suctioning the flat bags in the storage case, which are arranged in X pieces at the same indexing pitch and can reciprocate in the radial direction.1.
While the upper turret is stopped, each vacuum suction force simultaneously advances the flat bag to a position where it can be suctioned, and suctions the flat bag, and each vacuum suction cup that has suctioned the flat bag at the same time to above a through hole provided in a position corresponding to the pocket of the upper turret, and a device that evacuates the vacuum suction cup before or during the advancement of the vacuum suction cup, and is equipped with a device to release the vacuum while the upper turret and lower turret are rotating at the same angular velocity ω, and as the vacuum is released, y flat bags are simultaneously passed through the through hole, one by one, and each The present invention provides an apparatus for automatically loading a flat bag into a holder, characterized in that the bag is loaded into the holder.

(5) The present invention will be described below with reference to drawings which are examples.

3 and 4, the flat bag loading device 3 includes a lower turret 12 that continuously rotates for moving the holder 2 along the circumferential direction, an upper turret 13 that rotates intermittently coaxially with the lower turret 12, and an upper A plurality of storage cases 14 (y; 8 in the figure) for storing all flat bags 7 (open, unformed bags, e.g. standing pouches) arranged slightly above the turret 13 in a stacked manner; Flat bag 7
A plurality of (X; 12 in the figure) vacuum suction cups 16 are provided for vacuum suction and dropping and charging into the holder 2 through the through hole 15 formed in the upper turret 13 when the vacuum is released. ing.

A plurality of lower turrets 12 (
X; In the figure, 12) pockets 12a'i are formed, and the holder 2 is accommodated in the pocket 12a and the holder 2 is conveyed in the circumferential direction of the arrow.1) The holder 2 is placed on the conveyor 1 and conveyed. After the book holders 2 are aligned at equal intervals by the blocks +J and -17 (6), they are fed into the pockets 12a of the lower turret 2 from the feed turret 18 via the feed turret 18. . Note that 19 is a fixed support plate on which the holder 2 is completely slid and transported. The lower turret 12 is moved at a constant angular velocity ω(
degree/minute) in the direction of the arrow. The holder 2 with the flat bag 7 inserted into its inner frame 2b is moved to the station D.
is transferred to the conveyor 1 by the delivery turret 25,
The next aperture is sent to the forming device 4 (FIG. 1).

The storage case 14 has stations E, F, G, and H at an indexing pitch corresponding to the blur 7to 12a.

They are arranged in I, J, and L. Each storage case 1
4 has its axes aligned in the radial direction, its front end 14a is horizontal, and its bottom surface 14a2 is aligned with the top surface 13a of the upper turret 13.
and are located at approximately the same level, and the rear portion 14b is inclined in the diagonal -L direction.

Therefore, the stack of flat bags 7 is constantly pressed forward by the weight body 26 with wheels 26a. The end surface of the front end portion 14a has an opening portion 14b which has a shape corresponding to that of the flat bag 7 and has a slightly smaller area.The flantz portion 14a provided around the opening portion 14b allows
The flat bag 7 is prevented from being pushed outward due to the above-mentioned suppression. Note that the flat bag 7 is stored in the storage case 14 with the opening facing upward.

The upper turret 13 is connected to a gear 27 by a motor 20.
, 28 , index cam 291 phase adjustment device 30 .
It is configured to stop and rotate at a constant angular velocity ω (degrees/minute) via gears 31, 32 and vacuum tube 33. There is a blur around the upper turret 13.
l 2 Pocket with the same indexing pitch as a] 2
X through holes 15 are formed at positions corresponding to a.

Then, due to the operation of the phase adjustment device 30, the upper turn,
1 and 13 reach the angular velocity ω from the stopped state (tl in FIG. 5(b)), each through hole 15 moves to the corresponding blur,
1.12a1 Therefore, it is located directly above the holder 2.

The vacuum suction cup 16 includes a hollow horizontal support rod 34, a flexible visor 35, an electromagnetic vacuum valve 36, and a vacuum cylinder 3i1.
and is connected to a vacuum bonder 38 via a conduit 37. Note that the lower end 33a of the vacuum cylinder 33 and the conduit 37 are connected via a rotary ring (not shown). Each support rod 3
4 extends in the radial direction above the circumferential center of the corresponding through hole 15, and there are
There are several.

As shown in FIG. 5(c), the vacuum suction cup 16 performs a reciprocating motion of moving forward to the opening 14b of the storage case 14 and retreating to just above the through hole 15 at a predetermined timing. The operation is performed by a cam mechanism as shown below. 39 is a rotating cylindrical cam, and the motor 20
1 through the gear 40° 41 and the hollow cylinder 42.
Rotation (minute XXω) Therefore, in the case of this embodiment, it is rotated at a constant speed ω at the speed of fat. 43 is a vertically moving cylindrical cam, and the rotation Cq
) As the cylindrical cam rotates 390 times, via the cam roller 44,
It is configured to move up and down against the pressing force of a spring 45. When the cylindrical cam 43 is raised ]-, the cam roller 46 is moved radially inward by the pressing force of the spring 47, and the upper end 48a of the lever 48 is therefore moved radially outward, so that the upper end 4.8a slot 48
The support rod 34 engaging a I and thus the vacuum suction cup 16 is advanced.

The support opening 34 is supported by a support 49, and the support 49 is configured to slide along a horizontal guide rod 50. On the other hand, when the cylindrical cam 43 is lowered, the cam roller 46 moves radially outward, and the vacuum cup 7''16 is therefore retracted.

The above-mentioned advancement and retreat of the vacuum cups 16 are performed simultaneously for X (12 in this embodiment) vacuum cups 16. In this embodiment, the rotating cylindrical cam 390 norofil, as shown in FIG. The upper turret 1 is formed so that it stops (in this embodiment, in parallel), then retreats, and starts rotating at the end of the ω retreat. That is, the profile is formed such that the upper turret 13 is at rest at least while the vacuum suction cup is in the forward position, ie, while it is suctioning the flat bag 17i in the front row inside the storage case 14. .

As shown in FIG. 5(d), the electric & vacuum valve 36 is operated by a control device (not shown) to perform vacuum suction before or during the advance of the vacuum suction cup 7'16 (in the case of this embodiment). The vacuum suction cup 16 is evacuated, and soon after the vacuum suction cup 16 retreats and the rotation of the upper turret 13 begins, the vacuum of the vacuum suction cup 16 is released.

In addition, 51 is a flat bag 7 so that the flat bag 7 falling through the through hole 15 is correctly charged into the inner frame 2b of the boulder 2.
This device is equipped with a pair of driving rolls 51a and a pair of endless bells 51b which are moved in the direction of the arrow in contact with each other by the driving rolls 51a.

Regarding the operation of the above device, the timing chart in FIG. 5, the upper turret 13 and the lower turret 1
This will be explained with reference to FIG. 6, which shows the progress of the movement of the vacuum suction cups Cl to C12 and the holders h, to h1 in Step 2. For convenience of explanation, time 7 (FIG. 5) is assumed to be the initial state. At this point, as shown in FIG. 6(a), the leading holder h1 is located at the station, and the flat bags 7 have not yet been loaded into the holder h1 and the following holders h2 to h6. The upper turret 13 has stopped, and the vacuum suction cups c1 to C12 are about to start retracting from the forward position, and the cups c1 to C12 are suctioning the flat bag 7. At time 8, , 6th
As shown in Figure (b), the leading holder h is located at the L station, and the vacuum suction cups c1 to c12 are moved back and located above the through hole 15. Upper turret at time 8!・13 starts rotation. At time 9, as shown in FIG. 6(C), the leading holder h1 moves to station A, and the rotational angular velocity of the upper turret 13 reaches ω, which is equal to that of the lower turret 12.
By the operation of the phase adjustment device 30, the vacuum suction cup fC1
+e2 +C3+C4+(!5 +C(1+C7 and C8 are respectively holders J, h, , h3+h4.h
5. h, located above lh7 and h8. Shortly after time 9, the electromagnetic vacuum valve 36 closes, the vacuum suction force and the vacuum of pu c1 to c8 are released, and the flat bag 7 that has been suctioned is placed in the corresponding holder h1 to h8 with a through hole. ]
5 and the guide device 51.

FIG. 6(d) shows the state at time 10,
The first holder hl is at the B station, and the holder h8
is located at the G station, and the F station is blurred)
12a is a holder h in which the flat bag 7 is not yet loaded.
9 is stored. FIG. 6(e) shows the state at time 17 when 8 units of time have elapsed from time 9, and the holders h9 to hta, in which the flat bags 7 have not been loaded, are located in the A-F suffixes, respectively. The vacuum suction cup CQICIO・ell +CI2 + which suctioned the flat bag 7
CI +C2+e3 and C4 are respectively holder h
9+ hto 111111h121(13) hl31 )114 + )115 and hl6, shortly after time 17, the vacuum is released and each flat bag 7 is placed in a holder h9-h in the corresponding position.
It is charged within t6. Therefore, the flat bags 7 are automatically loaded into all the holders 2 (ie, hl) that are moved along the circumferential direction by the lower turret 12.

In order to load the flat bags 7 into all the holders 2 sent by the lower turret 12 as described above, the following (1 ) must hold true.

y=x-CXI+3) (1) Here, XI is the number of pockets 12a in which the holder 2 is not stored,
In the case of Figure 3, pocket 12 located at E station
a corresponds to this, in this case x 1 :l.

Note that Xl may be 2 or more.

Second, ω (14) must be set so that the weekly period of the upper turret) 13 is y times the unit time (equal division in the case of FIG. 5). In other words, in the case of Figure 5,
One week period consists of one unit of time to reach the angular velocity ω, three units of constant speed rotation at the angular velocity ω, one unit of time to stop, and three units of stopping time, that is, a total of eight units of time. And in this case it is y28.

The device according to the invention has the advantage that flat bags can be loaded completely automatically into a continuously moving holder.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view for explaining an example of a device for fully automatic filling and sealing of packaging bags, which is equipped with the device of the present invention, and FIG. 2 is a perspective view of an example of a holder applied to the device of the present invention. FIG. 3 is a partially cutaway plan view of an apparatus which is an embodiment of the present invention;
Figure 4 is a longitudinal sectional view taken along line IV-■ in Figure 3, and Figure 5 (
a), (b), (C), and (d) are time charts showing examples of the correlation between the operations of the lower turret, the upper turret, the vacuum suction cup, and the electromagnetic vacuum valve in the apparatus shown in FIG. Figures (a), (b),
(e), (d), and (e) are explanatory plan views for showing the state of movement and operation of the holder and the vacuum suction cup over time; 2+J...Holder, 3...Flat bag loading device, 7...
・Flat bag, 12...Lower turret, 12a・Pocket, 13...Upper turret, 14...Storage case,
15...Through hole, l6, cl...Vacuum suction cup, 36...Electromagnetic vacuum valve, 39...Rotating cylindrical cam, 43
...Vertical moving cylindrical cam, 48... lever.

Claims (1)

[Claims] (1) A device that automatically loads 11 flat bags ff into each moving holder, and this device has a plurality (X) of pockets at the periphery for accommodating the holders and moving them along the circumferential direction. A lower turret rotating at a constant angular velocity ω (degrees/min) formed at equal pitches along the section; a turret consisting of a stop and a constant angular velocity ω echo rolling; A plurality (y) of flat bag storage cases arranged downstream from the vicinity of the station at an indexing pitch corresponding to the pocket; ,
Vacuum suction cups that can reciprocate in the radial direction to suction the flat bags in the storage case; while the upper turret is stopped, all the vacuum suction cups simultaneously reach a position where all the flat bags can be suctioned ( 1) A device that moves forward to suction the flat bag and simultaneously retreats each vacuum suction cup that suctioned the flat bag to above a through hole provided in a position corresponding to the pocket of the upper turret; and Before or while the vacuum suction cup moves forward, the vacuum suction cup is evacuated, and after the vacuum suction force, zo, retreats, the upper turret and the lower turret are at the same angle ω.
It is characterized by being equipped with a device for releasing the vacuum during rotation, and as the vacuum is released, y flat bags are simultaneously charged into each holder through the through holes. A device that automatically loads flat bags into a holder.