JPS6020249B2 - Stocker device that supplies bags to the filling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stocker device for supplying bags to a filling machine.

A number of stocker devices have been provided for supplying bags to filling machines, but operation errors can occur, making it difficult to reliably supply bags one by one, or The operation of the suction mechanism becomes complicated in order to convert the bag in the upright position to an upright position, which poses major restrictions on the final filling speed, and in this respect, the device becomes complicated. there were.

The present invention thus aims to overcome the drawbacks of the prior art.

That is, the features of the stocker device of the present invention, as will be described in detail below, are that a vertical stocker portion r is provided on the lower belt n just below the direction changing roll e, and an O-ring belt f that slides in contact with the direction changing roll e is connected to the lower belt n. By installing the upper belt q in parallel with the upper belt q installed near the downstream end, the upper belt q and the O-ring belt f can move the upper belt from the preceding upper layer of the bags m that are fed in an overlapping manner. 1
At the same time as the bag m is slid and separated one by one, the bag m which has been laid down and transferred can be changed to an upright position by passing over the surface of the direction changing roll e and then stored in the stocker part r. Therefore, since there is no need for a conversion operation to the bag position using a suction mechanism such as a follower, the speed can be increased accordingly, and the operation of the filling machine can be improved. Another feature is that by adjusting the position of the presser roll d of the O-ring belt f vertically and horizontally with respect to the direction-changing roll e, the pressure applied to the direction-changing roll e can be adjusted, which improves the separation effect of the bag body. This further increases the elasticity of the belt itself, making it possible for bags with different wall thicknesses, such as bags with thicker parts, to pass over the direction changing roll e. Also part of the stocker
By providing a stopper a in the bag, it is possible to reliably restrict the feeding of the next bag, so that the bag is properly fed to the suction position, and the suction function does not become unsmooth. .

Embodiments of the present invention will be described below with reference to the drawings. As shown in the drawings, the main component of the device of the present invention is the lower belt n.
It consists of an upper belt q, an O-ring belt f, a stocker part r, etc. The lower belt n is driven by a motor o and rotated by a drive roll p and a direction changing roll e. Further, guide plates 1 are provided on both sides of the upper surface. The upper belt q is driven by a motor i and is wound around a drive rotary h, a moving roll g, and an auxiliary roll j.

The interlocking roll g is in contact with the n side of the lower belt, and the auxiliary roll j is somewhat spaced from the lower belt n, and can move up and down depending on the thickness of the bag m held between it and the lower belt n. The mounting frame &,h is designed such that its mounting shaft can move up and down within the elongated hole of the mounting plate k. O-ring belt f is rotated by interlocking roll g and presser roll d,
The details will be described later. The stocker part r has a stopper a, a sensor b, and a guide plate 1 for a bag c separated by Z.

Its effect will be described later. The operation of the apparatus of the present invention shown in the drawings will be explained below.

■ A large number of bags m, which are placed on the lower stage belt n with the closed part facing the direction opposite to the traveling direction of the belt n and stacked in a reverse scale shape, move forward at a low speed and move downstream of the lower stage belt n. The group of bags m2, which are fed to the high-speed upper belt q arranged oppositely near the end and are transferred in an overlapping manner due to the speed difference between the upper and lower belts n and q, is advanced between the belts n and q, especially at the roll g portion on the downstream side. The bags are separated and transported one by one starting from the upper bag.

The speed difference ratio between the lower belt n and the upper belt q is set as large as possible, for example, at a ratio of 1:50 to 3. (2) Another O-ring belt f is provided in front of the upper belt q in conjunction with the movement roll g of the upper belt q.

The O-ring belt f is stretched so as to be in sliding contact with the lower belt n at three upper surfaces of the circumference of the direction changing roll e of the lower belt n. (2) The bags m which have been successively separated from the preceding upper part by the upper and lower stage belts n and q are pressed with moderate force by the O-ring belt f on the circumference of the direction conversion roll e, thereby receiving a more reliable separation action.

In other words, the mounting shaft of the presser roll d of the O-ring belt f is mounted so that it can freely move within the long hole of the roll mounting plate k, and the rigidity, tenacity, feeding condition, wall thickness, and Depending on the condition of the thick part or the diameter of the direction-changing roll e, the bag m is fixed appropriately and pressed onto the circumference of the direction-changing roll e with an appropriate force, and in this pressed state and held with a presser. The difference in speed between the O-ring belt f and the lower belt n ensures reliable separation of each sheet. Then, the bag m that has been separated and moved is turned into an upright direction along an angle determined by the curvature of the circumference of the direction changing roll e and the position of the presser roll d of the O-ring belt f. (2) The bag m that has passed over the direction changing roll e is guided to the stocker section r provided directly below the direction changing roll e, and falls under its own weight to become a separated bag c, which hits the stopper a.

Then, sensor b attached to the tip of stopper a
is activated, and the rotation of small belts q and f is stopped. Therefore, the feeding of the bag m is stopped. ■ While the bag c is supported by the stopper a in the stocker section r and stands upright, the feeding of the bag m is stopped and at the same time the bag suction device s is activated to suction the bag c and send it to the filling machine. Transport and load.

■ When the bag c is detached from the stopper a of the stocker section r transferred to the filling machine, the sensor b detects the belts n, q, f.
is rotated, and the bag body m is moved to the stocker part r again.
The supply to the area will begin.

The same operation is repeated thereafter.

(2) The guide plates 1, 1 on both sides of the upper surface of the lower belt n and the guide plates 1, 1 on both sides of the stocker part r are adjustable in accordance with the size of the bag body m inside the bag.

The position of the lower end stopper a of the stocker part r is the bag m, c.
It is determined depending on the length of and the position of the bag suction device s.
(2) Since the bag m is transported along the circumference of the direction changing roll e of the lower belt n, if the diameter of the direction changing roll e is small, it will be difficult to change the direction.

Conditions vary depending on the rigidity, tenacity, feeding condition, thick wall condition, etc. of the bag m, but the diameter of the corner direction conversion roll e is 50 mm.
A range of 150 pieces/skin is considered appropriate. If the diameter of the direction conversion roll e is too large, problems will arise in the sliding relationship with the O-ring belt f and in the rotation of the lower belt n.

The biggest problem is that the speed at which the separated bags c separate from the O-ring belt f and the lower belt n becomes slower. It is not preferable if the diameter is too large or too small. ■ The o-ring belt f stretched over the direction changing roll e is separately installed in conjunction with the upper belt q, so that the o
The pressing force of the ring belt f against the lower belt n can also be finely adjusted.

That is, the O-ring belt f is provided to move with the upper belt q via an interlocking roll g, and the presser roll d of the O-ring belt f changes the direction of the O-ring belt f so that it comes into sliding contact with the circumferential upper surface of the direction-changing roll e. The interlocking roll g is arranged somewhat below the upper surface of the lower belt n with a distance w from the roll e (FIG. 4), while the interlocking roll g is arranged somewhat in front of the direction changing roll e.

Due to the arrangement of the interlocking roll g and the presser roll d, the O-ring belt f slides in an arc toward the direction-changing roll e, and the bag m is reliably guided along the circumferential surface of the direction-changing roll e. , the O-ring belt f can adjust the pressing force applied to the lower belt n independently of the upper belt q. Therefore, delicate pressure adjustment of the O-ring belt f becomes easy. If the upper belt q and the O-ring belt f were provided as one unit, the upper belt q would have to apply enough pressure to the lower belt n to sequentially peel and separate the bags m from above, so it would be necessary to change the direction of the lower belt n. . A large pressure must also be applied to the circumferential surface of the belt e, and it is difficult to adjust the pressure applied to the lower belt n. In the present invention, the O-ring belt f is provided separately from the upper belt q, and the presser roll d of the O-ring belt f is provided at the above-mentioned position, so that a bag body having a large number of thick parts happens to pass through the upper belt q. However, the tension of the O-ring belt f is automatically adjusted by the elasticity of the O-ring belt f, so that the bag can be smoothly passed through the bag in such a state.

If the presser roll d is brought into pressure contact with the direction changing roll e without providing an interval w, the elasticity of the O-ring belt f will be lost, and the above effect will not be achieved. Effect: {a} The group m of bags fed onto the lower belt n is separated one by one from the preceding upper one due to the speed difference between the lower belt n and the upper belt q. Even if the bags are separated at the same time, the O-ring belt f supplies only the uppermost bag to the separated stocker section r, so that the bags m are separated one by one with certainty.

'b} The presser roll d of the O-ring belt f is located somewhat below the direction changing roll e with a distance w therebetween.

Since the O-ring belt f is elastically pressed against the direction changing roll e, even if several bags are o-ring at the same time,
Even if the bag is introduced into the ring belt f or a bag with a thick wall part is introduced, the elasticity of the o-ring belt f will automatically dent the o-ring belt f, so there will be no malfunction of the device. . {c' The group of bags m, which had been supplied lying on the lower belt n, stood upright by passing between the direction changing roll e and the presser roll d, which were separated one by one by the operations of a and b in the previous section. While being changed to the current position, it is stored in the stocker part r due to its own weight.

Therefore, there is no need for the mechanical operation required to change the bag body, which was sent lying down, to an upright position before sending it to the filling machine, as in conventionally known inventions, and the suction device also moves the bag body at a speed correspondingly further. Since the body can be adsorbed and fed into the filling machine, the functionality of the filling machine does not deteriorate as in the past. Furthermore, since the structure is simplified in addition to the above, smooth operation with fewer failures can be obtained.

[Brief explanation of the drawing]

Fig. 1, Fig. 2 sectional view taken along line 1-1 of the device of the present invention, Fig. 2,
Similarly, the plan view, Figure 3, Figure 1, left side view, Figure 4,
An enlarged explanatory view of a corner roll portion. a... Stopper, b... Sensor, c... Bag body (separated), d... Presser roll, e...
Direction changing roll, f...O-ring belt, g...Interlocking roll, g. ...Mounting frame, h.... Drive roll, i
．． ... Motor, 1 ... Auxiliary roll, J
．．・・・．・．． ．． Mounting frame, k...Roll mounting plate,
1... Guide plate, m. ...Bag body (before separation), n
...Lower belt, o.・・・．・・Motor, p
・・・・・・Drive roll, q.・．． ．． ．． ．． upper belt,
r...Stocker part, s...Bag suction device. Figure * Figure N Satoshi Zusun Lacquer Figure 3

Claims (1)

[Claims] 1. A low-speed lower belt n, a high-speed upper belt q installed near the downstream end of the lower belt n, and an upper belt q.
An O-ring belt f which is interlocked with an interlocking roll g on the downstream side and is installed opposite to a direction-changing roll e on the downstream side of the lower belt n, and below the direction-changing roll e and the presser roll d of the O-ring belt f adjacent to this In order to bring the O-ring belt f into sliding contact with the circumferential upper surface of the direction-changing roll e, the interlocking roll g is located somewhat in front of the direction-changing roll e, and the presser roll d is located at the direction-changing roll e. Interval w from e
The stocker part r is located at a certain level below the upper surface of the lower belt n when opened, and a stopper a is attached to the stocker part r, and the stocker part r is arranged upright. Stocker device that supplies bags to the filling machine.