KR100504327B1 - Transfer apparatus and method for film bags - Google Patents

Abstract

The present invention relates to a method and apparatus for transferring film bags fed to a transfer position in a plurality of parallel rows to a conveying means for transporting the film bags in a continuous row in a transverse direction substantially in the feeding direction. The film bag is delivered preaccerlerated in the direction of movement of the vehicle.

Description

Film bag transfer apparatus and its transfer method {Transfer apparatus and method for film bags}

The present invention relates to a method for transferring a film bag supplied in a plurality of parallel heats by a supply means to a conveying means for transporting the film bag in continuous heat, and an apparatus for performing the method.

In recent years, most film bags used as packaging means are subjected to, for example, automatically filled, sealed and processed. Such a film bag consists of, for example, two films with three edges sealed to each other, and between the fourth edges of the bottom film such that when the bottom film is opened, an empty space in the film bag is formed for the filled product. Is sealed.

In such automated processing lines, several film bags are often processed side by side simultaneously. For example, a plurality of film bags are opened simultaneously in the filling means and also simultaneously transported by the transport device, filled at the same time and also sealed at the same time after being transported again.

However, at another point in the treatment line, these film bags must be fed separately to the treatment site. As a typical example, for example, a drinking straw may be applied to a beverage film bag.

In this case, a problem arises that, by means of transport which supplies a plurality of film bags in parallel, to another transport means in which the film bags are lined up for another treatment, the film bags must be transported. This results in discontinuous operation because the supplied number corresponding to the number of rows supplied in parallel must always be transmitted at the same time while the vehicle is stopped. Moreover, due to the speeds recently used in such processing systems, strong acceleration and deceleration forces are generated during transport, which can be easily damaged, especially in the case of filmback.

It is therefore an object of the present invention to provide a method and apparatus for transferring a film bag from a supply means for simultaneously feeding the film bags in parallel to a conveying means for moving the film bag in a single continuous row, thereby enabling continuous operation and To reduce the acceleration and reduction of the film back.

This object is achieved by a method comprising the features of claim 1 and an apparatus comprising the features of claim 6. Each of the dependent claims is for an advantageous application.

According to the method of the present invention, each of the plurality of film bags which are simultaneously supplied to the transport position are all accommodated at the same time by the transport device, preaccelerated in the direction of movement of the transport means by the transport device, It is lowered in and then transported by the conveying means in a direction substantially perpendicular to the supply direction. The method according to the invention allows for continuous operation. While the plurality of film bags are transported by the transport device to the transport means and delivered to the transport means, another plurality of film bags are supplied to the transport position by the supply means. On the other hand, while the conveying device accepts a new plurality of film bags from the supply means and transports the film bags to the conveying means, the conveying means continues its advancing operation while conveying the film bags already conveyed for other processing. By properly setting the relative speed between the supply means and the conveying means, continuous operation is ensured. Furthermore, preaccelerating the accommodated film bag in the conveying direction has the effect of reducing the acceleration force when the film bag is lowered onto the conveying means. Thus, damage to the film bag when being lowered onto the conveying means is prevented. Reducing the acceleration force while the film bag is lowered also improves the accuracy of the positioning operation of the film bag on the vehicle.

The method according to the invention transports a plurality of film bags to which the conveying means are simultaneously delivered within the same time that the conveying device transports and pre-accelerates the same number of different numbers of different film bags and transports them to the conveying means. In particular, it is particularly effective when adjusting the speed of the conveying means with the speed of the conveying device. This ensures that the carrying capacity of the conveying means is optimal since irregular gaps between the respective film films cannot be generated on the discharge device. Moreover, it is easy to perform different processing in the automated processing zone.

Advantageously, in the method of the present invention, the relative speed between the conveying means and the film bag at the moment when the film bag is lowered to the conveying means will be zero or close to zero. Therefore, there is no acceleration force acting on the film bag at all while the film bag is lowered, thus the risk of damage to the film bag is further reduced and the accuracy of the film bag positioning operation is also increased.

The film bag is placed in a slightly inclined position and is simply transported by the conveying means. This inclined seat facilitates the ejection operation because the film bag is supported on the ejection device due to its inclined seat.

The film bag can be placed directly on the conveying means by the conveying device. However, the operation is easier when the film bag is lifted from the feeding means, transported through the conveying means, and lowered to the place. Thus, the need for accurate discharge operation is reduced.

In order to carry out the method of the invention, the apparatus according to the invention comprises a supply means for feeding the film bag in parallel heat, a conveying means for transporting the film bag in continuous heat in a direction substantially perpendicular to the supply means, And a conveying device for receiving each of the plurality of film bags corresponding to the two supplied heats from the supply means, preaccelerating the film bags in the direction of movement of the conveying means and placing the film bags on the conveying means.

The conveying device may perform respective operations using, for example, a robot controlled by a microprocessor. However, a particularly simple configuration is a conveying device comprising a carrier, a transverse bar parallel to the carrier means of the filmback and at least one lever arm mutually coupled to the transverse bar, the transverse bar being parallel to the conveying device, The engagement is designed such that the angle surrounded by the carrier or transverse bar and lever arm is variable. This configuration allows the film bag accommodated to be easily pre-accelerated by changing the angle.

This structure is particularly stable if at least two lever arms are provided such that the carrier, lever arm and horizontal bar form a parallelogram of varying angles.

This angle can be varied in various ways. One simple way to do this is to pivot the lever arm using a motor. The motor here can be controlled such that the horizontal bar and the conveying means have a relative speed of zero or close to zero when the film bag is put down. Thus, the acceleration force may not be applied on the film back during the unloading operation, thereby reducing the risk of damage. Advantageously, the operation of the transverse bar in the area of the conveying means is effected slightly above the film bag located on the conveying means. Thus, the movement of the horizontal bar does not interfere with the transport of the filmback. Moreover, this results in a simple discharging method that allows the film bag to be easily placed on the conveying means.

The horizontal bar may perform a lifting operation during the conveying operation. A connection guide is provided that affects the lifting operation during each change between the at least one lever arm and the carrier. This connection guide has the simplest, mechanical and inexpensive construction possible. The lifting operation can also be performed pneumatically or by a motor.

The carrier means may comprise a clamp on the horizontal bar that can hold the film bag at its top. The feeding means may be an endless belt in which a plurality of film bags are conveyed in parallel.

The receiving case to which the film bag is supplied can be aligned on this endless belt. The supply means consist of a chain that extends in parallel and includes a receiving case installed thereon, to supply the film bag.

The discharge means may comprise a transport belt, for example. Advantageously, a support means is provided on this transport belt, in which the film bag is transported. This support means ensures safe transportation. Safe transport can be realized in a particularly simple manner when the support means are designed such that the film bag is transported in a slightly inclined position.

The film bags here can be transported directly side by side. According to a preferred embodiment, however, the support means comprise a side guide for the film bag which ensures in a simple manner the regular arrangement of the film bag on the transport belt.

DETAILED DESCRIPTION An embodiment comprising a device of the present invention and a method of the present invention will now be described in detail with reference to the accompanying drawings.

1A-1C show the transfer area. Such a transfer zone can be found for example in a beverage filling system. The beverage film bag 2 in which the beverage is filled and sealed is placed on a conveying means for conveying the beverage film bag, for example, to a beverage straw supplying place, by a conveying device.

The filled and sealed beverage film bag 1 is supplied by the supply means 2 at the supply position 4. Reference numeral 13 denotes a carrier on which the spindle arms pivotable lever arms 12a, 12b hang. The motor 18 is provided for the main axis turning operation in the direction of the arrow 20. Reference numeral 11 denotes a horizontal bar provided with clamp means on the bottom surface, and the clamp means are not particularly limited to those shown in Figs. 1A to 1C. The film bag 1b delivered by the horizontal bar 11 is shown in broken lines in FIG. 1. The horizontal bar 11, the two lever arms 12a and 12b and the carrier 13 form a parallelogram with variable angle γ.

Reference numeral 6 denotes a conveying means moving in the direction of the arrow 10. Support means 8 are located on the conveying means 6. Reference numeral 1e denotes a beverage film bag already carried.

FIG. 1B shows the same transfer position when the angle γ between the lever arm and the carrier becomes larger at a later time point in FIG. 1A. Reference numeral 1c denotes a film bag which is transported by hanging on the horizontal bar 11.

1c shows the same conveying position in turn when the film bag 1d is lowered from the transverse bar 11 to the conveying means 6.

2 is a schematic side view showing the same transport position. A clamp mechanism 26 with a clamp 28 is provided on the horizontal bar 11. Arrow 24 indicates the return direction of the empty housing case 30 to which the film bag 1a was supplied.

Arrow 22 shows that the lifting operation of the horizontal bar 11 to be described later is initialized during the main axis pivoting operation of the lever arms 12a and 12b.

The upper right half of FIG. 2 shows the state of the conveying position at a later point in time, after the lifting operation 22, the clamp 28 is opened on the support means 8 of the transport transport belt 6. Reference numeral 9 denotes a side guide of the support means 8. This figure shows that the bottom surface 8 of the support means is inclined and the support means comprise only one rear wall. The continuous line shows the film back immediately after the clamp 28 is opened. The film bag seated on the rear wall of the support means at the next moment is shown in broken lines.

The method according to the invention will now be described in connection with the form of operation of the device according to the invention by means of an exemplary conveying device in a machine for filling beverage film bags.

The beverage film bag is supplied in parallel heat by the supply means 2. Here any desired number of parallel rows is possible. The beverage film bag 1a is transported in the housing case 30 which is firmly fixed to the supply means 2.

As shown in the left half of FIG. 2 and respectively in FIG. 1A, the clamp 28 engages the beverage film bag 1b in the transfer area. As soon as the clamp 28 is closed, the motor 18 starts to move the lever arm 12a in the direction of twenty. Thus, the state shown in FIG. 1B is obtained.

While the beverage film bag 1c is transported from the supply means 2 by the horizontal bar 11 and the clamp 28, the supply device 2 continues to move another plurality of beverage film bags to the transfer area. Go to. While the beverage film bag 1c is being transported, the lifting operation of the horizontal bar 11 is started. For the sake of clarity, for example, a connection guide is provided, but is not limited to exactly what is shown in the figures, alternatively a motorized drive or pneumatic drive is used. A simple configuration of this is, for example, a lamp in which the lever arms 12a and 12b respectively contact with it while being pivoted by the motor 18.

The lever arms 12a and 12b continue to pivot up 20 in the state shown in FIG. 1C. Here, the speed of the main axis turning operation is selected such that the cross bar 11 at the time shown in FIG. 1C has the same speed as the transport belt 6 in the conveying direction 10.

In this situation the clamp 28 is opened by, for example, the control means and the film bag 1d falls into the support means 8 located below it. In this step, they are aligned in line with their side positions by the side guides 9. As shown in Fig. 2, the support means 8 is formed with its bottom surface slightly inclined so that the filmback is seated in an inclined manner. Since the transport belt 6 is continuously moved together with the supporting means 8, the film bag 1e is transported continuously after being lowered. In the lowering step, the relative speeds of the film bag 1d and the transport belt 6 are zero or close to zero, so that the acceleration force which can damage the film bag does not act on the film bag.

As shown by arrows 20 in FIGS. 1A-1C, the main axis pivoting operation of the lever arms 12a and 12b continues even after being lowered. Finally, the pivotal motion of the lever arms 12a and 12c is reversed and the horizontal bar is returned back along the same path as shown in FIGS. 1A-1C and described above.

The connecting guide is moved through in the reverse direction. Alternatively, it is also possible to use motorized or pneumatic drives. Since the lifting operation 22 raises the horizontal bar to a sufficient height above the transport belt 6, it is ensured that the clamp 28 does not collide with the pre-placed filmback 1e during the return operation of the horizontal bar 11.

The main pivot return operation continues until it reaches the state shown in FIG. 1A again, and the conveying operation is repeated for subsequent multiple filmbacks. While the horizontal bar 11 is pivoted back or pivoted back after the ejection operation shown in FIG. 1c, a new plurality of film bags 1b are transferred to the horizontal bar by the clamp 28 to transport the belt 6. While moving to, the belt continues to move. By proper time adjustment, the transport belt 6 is advanced more precisely by the interval at which the film bag 1d can be laid down on the transport belt 6 immediately following the plurality of film bags previously laid down.

Thus, the above-described apparatus and the method associated therewith, two successive transport belts can be used, even if one transport belt stops while the other transport means lays down multiple film bags in a row, multiple films Enables the transport of the bag to be carried simultaneously to the transport position. This continuous supply and discharge facilitates the transfer device to be integrated into the automated processing system. Because of the pre-acceleration of the film bag relative to the speed of the transport belt, the risk of damage to the film bag is reduced with acceleration of the overall processing speed.

1A is a schematic plan view showing the transfer area at the moment the film bags are accommodated;

1B is a schematic plan view showing a transfer area when in a transfer state;

1C is a schematic plan view showing the transfer area at the moment of laying down the film bag;

2 is a schematic side view showing the entire conveying operation.

<Explanation of symbols for the main parts of the drawings>

1a, 1b, 1c: film back 14, 16: principal axis

12a, 12b: lever arm 18: motor

11: horizontal bar 13: carrier

6: conveying means 8: supporting means

Claims (21)

A film bag, for example, a beverage film bag, which is fed to the transport position by a plurality of parallel rows by a feeding means 2, is formed in a continuous row substantially in the transverse direction with respect to the feeding direction 4. In the method for conveying to the conveying means 6 for transporting A plurality of supplied film bags 1b, 1c, 1d which are identical to the supplied heat are simultaneously received from the supply means 2 by the conveying device 11 and in advance in the direction of movement 10 of the conveying means 6. A method for conveying a film back, characterized in that it is accelerated and is transported by the conveying means after being lowered to the conveying means (6) by the conveying device (11) in a pre-accelerated state. 2. The conveying means (6) according to claim 1, wherein the conveying means (6) carries a plurality of film bags (1e), and the conveying device (11) receives another equal number of film bags (1b, 1c, 1d) and And the conveying means 6 so that the plurality of film bags are simultaneously conveyed by the conveying device 11 within the same time as the time during the pre-acceleration of the film bags for transporting and lowering the conveying means 6. Film back conveying method characterized in that the operation of the conveying device (11) is adjusted. The method according to claim 1 or 2, The relative speed of the conveying means (6) and the film bag (1d) at the moment of lowering the film bag onto the conveying means is zero or close to zero. The method of claim 1, Said film bag (1e) is transported in a slightly inclined position by said conveying means (6). 5. Method according to claim 4, characterized in that the film bag (1b) is lifted from the supply means (2) when received and released when it is lowered into the transport means (6). Supply means (2) for supplying film bags (1a) such as beverage film bags in parallel heat; Conveying means (6) for transporting said film bag (1e) in continuous heat in a direction substantially perpendicular to said supply direction; And Delivering each of the plurality of film bags 1e equal to the plurality of film bags of the supplied heat from the supply means 2 and preaccelerating the film bags in the direction of movement of the conveying means 6, And a conveying device (11) which is laid down in the pre-accelerated state on the conveying means (6). 7. The conveying device according to claim 6, wherein said conveying device has a carrier (13), a holding means (28) of said film bag (1c) and a horizontal bar (11) parallel to said conveying device, and said horizontal bar (11) and said At least one lever arm 12a, 12b that engages the carrier 13, wherein the angle surrounded by the at least one lever arm 12a, 12b together with the carrier 13 or horizontal bar 11 is variable. Film back transfer device characterized in that the. 8. A method according to claim 7, wherein at least two lever arms (12a, 12b) are provided, wherein the carrier (13), the lever arm and the horizontal bar (11) form a parallelogram with a variable angle (γ). A film bag conveying apparatus characterized by the above-mentioned. The method according to any one of claims 7 and 8, The angle (γ) can be varied by means of a motor (18) which pivots the lever arm (12a). 10. The motor (18) according to claim 9, characterized in that the motor (18) is controlled such that the horizontal bar (11) and the conveying means (6) have a relative speed of zero or close to zero while the film back (1d) is lowered. Film back transfer device. The method of claim 7, wherein The conveying device is designed such that in the region of the conveying means 6 the operation of the transverse bar 11 is made at a slightly higher position than the filmbags 1d and 1e located above the conveying means 6. A film bag conveying apparatus characterized by the above-mentioned. The method of claim 11, The horizontal bar (11) is a film back conveying apparatus, characterized in that for performing the lifting operation (22) during the conveying operation. 13. The connecting guide according to claim 12, wherein the connecting guide influences the lifting operation 22 or the lifting operation while the angle [gamma] between the at least one lever arm 12a, 12b and the carrier 13 changes. Film conveying apparatus, characterized in that the operation is influenced by pneumatic or motorized drives. The method of claim 7, wherein Said carrier means being provided on said transverse bar (11) comprising a clamp (28) formed at its top to hold the film bag (1b, 1c, 1d). 7. Film back conveying apparatus according to claim 6, characterized in that the supply means (2) is an endless belt in which a plurality of film bags (1a) are carried in parallel. The film bag conveying device according to claim 15, wherein the accommodating case (30) to which the film bag (1a) is supplied is aligned on the endless belt (2). 7. The film bag conveying apparatus according to claim 6, wherein the supply means (2) is a chain extending in parallel with a housing case (30) installed thereon, and the film bag (1a) is supplied therein. The method of claim 6, Said conveying means comprises a conveying belt (6). A film bag conveying device according to claim 18, characterized in that the support means (8) of the film bag (1e) to be transported are provided on the transport belt (6). 20. A film bag conveying device according to claim 19, characterized in that the support means (8) are shaped so that the film bag (1e) is transported in a slightly inclined position. The method of claim 19, Said supporting means comprises a side guide for said film bag (1e).