JPS638A - Device for filling and detaching bag with zipper - 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] The present invention relates to a retractable plastic zipper which is equipped with a fastener strip (zipper) having a rib group profile with an interlocking structure and connected in a chain. It relates to a device that opens bags one by one, fills them with items, seals them, and disconnects them.

For example, a zippered plastic bag of the type described in U.S. Pat. Attached to the opposing interior surfaces are fastener strips having an interlocking rib-greb fist profile. The manufacturing and handling of these resealable plastic acid bags presents different problems than the handling of bags made for heat seal sealing. For example, a bag with a resealable zipper generally has an opening that is closed during the bag-making process to properly engage the rib groups, and the opening of the zero-bag bag that is shipped from the bag-making factory in a closed state. is opened at the filling plant to fill the goods and then has to be closed again for packaging.

Recently, for example, as described in U.S. Pat.・An automatic machine was invented that sealed the filling fist and sent it out. The bags passing through this machine are connected to each other in a chain. Although this machine is ideal for users with relatively high volume packaging, it meets the cost expectations and requirements of smaller packaging businesses with low volume or intermittent demand. There remains a need for a zippered bag filling machine that is economical, reliable, and easy to handle.

1 The present invention is a method for filling plastic acid bags with a zipper, which satisfies the requirements for cost, productivity, and operability of packaging companies that have only small or intermittent demand, and is reliable. The present invention relates to a filling method and apparatus that are simple and easy to use, and allow such operators to perform the necessary quick filling.

This device can be operated manually, such as by a hand or foot lever, or automatically, and can be used to open and close plastic bags with retractable zipper devices in a series of openings, with the bags connected in a chain. (for filling), seal, separate and send out one by one, each bag can be filled from the top, closed at the bottom and sides, a retractable zipper profile is attached to the top of each bag The L section of the zipper profile has 7 lunges for forward and rearward tension.The bag is partially separated by a section # that closes its 100g I end, the separation part of which has a zipper profile. It extends beyond and to the top of the tension flange. A continuous strip connects the tops of the front and rear pulling flanges of all bags together, thereby linking the bags as a series of continuous chains. The binding strip has an inwardly facing (or outwardly facing) guiding rib running continuously along its upper edge, and the bag slides and is pulled through the system on the guiding rails. . This strip can be removed from the top of the 7-pulling lunge,
Therefore, after the bags are filled, they are cut into individual pieces.

The bag is delivered to the device with the opening closed, which is the typical state in which the bag is shipped from a bag factory. Each bag is initially placed at the filling station coaxially with the zipper profile and guide ribs of the bags placed in a chain.
It is held between a pair of arms extending laterally. Each arm has a guide plate that receives the guide ribs of the joining strip.
There is a rail where the bag is supported on an arm.

Each arm also has a self-adjusting paddle that descends into the space between each pull flange of the bag.

The arm opens around the fulcrum, and the paddle catches the front and rear surfaces of the bag's pulling flange to open the bag for filling.
The arm then returns and the filled bag is transferred from the filling station to the sealing station where a pair of sealing blocks, vertically aligned and with horizontal grooves on opposing surfaces, are attached to the zipper base profile. The sealed bag is returned to the closed state and sent to a separation station.
This arrangement allows a chain of bags to be filled and Detachment from the rest of the bag chain always takes place at a common point of the device.

Each bag is individually sandwiched between a pair of grips at the filling station.

The grip φ is part of the gripping hand, and the gripping hand is adapted for an axial rotational movement towards and away from the filling station. This movement of the gripper also causes the arm to open and close at the filling station. The gripper removes each filled, sealed, and slit bag from the filling station and returns to the filling station to repeat the process.

The movement of the pincers not only transports individual filled and sealed bags from the filling station to the appropriate collection location, but also manages the flow of the chain of bags through the device. Pincers can be appropriately automated or operated manually. Furthermore, a possible simple version of the device could eliminate the pincers and allow the operator to grasp the free end of the pulling flange of the filled bag with his fingers and pull the bag out by hand.

More detailed examples and details of the present invention will be made clear in the drawings and detailed descriptions shown below.

The present invention relates to a packaging device, in particular a packaging system suitable for filling plastic bags with a retractable zipper device, initially prepared as chain bags. Each bag is closed at the bottom and side edges, and has a removable top opening fitted with a pair of interlocking zipper strip profiles with a ribbed group structure that snaps together. .

FIG. 1 shows a typical bag filling device (10) of the present invention, in which a zippered bag (12) is attached to a chain (
11), and by the - series operation, the 1st r5! J
As shown in , it is placed horizontally from the right hand to the left hand.

Each bag is equipped with a horizontal zipper (13) (the zipper is composed of rib group profile strips with an interlocking structure), and the zipper is located between both sides of the bag. The outline of the opening for filling the top of one expanded bag is determined.

0 bags with front and rear tension flanges (14) extending upward from the profile φ strip of the zipper (13) are partially separated from each other by a separation space (15) with a chain (11); This separation throat (15) extends beyond the zipper (13) to the top of the tension flange (14). As particularly shown in Figure 2, a continuous strip (16) connects the tops of the front and rear tension flanges of all the bags in the chain as a body, thereby making the bags continuous. It is connected to a series of things.

The coupling strip (16) has at its upper end a guide rib extending continuously in the transverse direction, which serves as a support rail, and the coupled bag slides and pulls the device (10). When the strip (16), which is being removed, is removed from the top of the pulling 7 lunge, the bags are separated from each other due to the separation space (15). The preferred shape is that each bag has a tension flange (14
) are joined to each other in a separation space (15), and the ends of the joined tension flanges can be made to remain joined even when the strip (IB) is removed. (12) is suspended vertically,
The chain (11) is connected to the device (
lO) in a horizontal direction from the right hand to the left hand,
The device (10) is suitable for handling the bags (12) in the zippered closed condition, which is the typical condition in which the bags are shipped from the bag manufacturer.

As shown in FIG. 1, the device (10) is divided into several operation areas, in which the bags on the chain (11) are sequentially processed.
There is a fixed guideway part in the form of
passes through the plow, and the other guide rib and coupling strip pass on the outside of the plow. The plow (20) supports and aligns the bags so that one bag chain enters the bag filling φ separation device, and removes the bags in the chain that may be warped, so that all the bags have their bag openings at the top. The direction plays the role of keeping it in an appropriate state where it hangs vertically and sending it to subsequent equipment.

Area B is the filling station, where the bags are arranged in regular order. At the filling station, the pulling flange (10) of the bag is grabbed and forced open in a direction perpendicular to the lateral forward movement of the bag in the device (IO) for filling one bag.
After opening the zipper (13) and filling, the pulling flange is pulled back at the filling station and each bag is guided by one bag.
It is supported by a guideway device which is fitted with the frame f (17). The filled bag then advances to area C, where the zipper profile of the bag is forced back into engagement and the continuous strip (16) of the bag is like a knife edge, with a tension 7 Separated from the lunge (14). In the area, a pincer device operates, moving between a first point located in area C and a second point located at a considerable distance from the filling station, grasping each filled bag and pulling it out of area C. In region C, the bag is closed and separated from the upstream end of the bag chain (11). The pincer device moves the filled and separated bag to a second point sufficiently distant from the filling station and releases the gripped bag there.The detailed mechanism by which the bag filling device operates will now be described.

The interlocking of the pincer device that controls the movement of the bag that removes the device is
It can be automated. Conversely, the device can also be adapted to grip and pull the bag with a person's fingers.

As shown in Figures 3-6, the top end of the bag is received at the filling station from a guideway device between a pair of jaws or arms (21, 22).

These arms are each supported in rotational relation about a vertical pin supporting the lower end thereof. The doors (21, 22) reciprocate between a closed state as shown in FIGS. 3-5 and an open state (FIG. 6 shows the action of the doors opening). Each has a platform surface on which a guide structure (23) suitably rests, the guide structure lip (24) overhanging from the platform.

The receiver, which creates an air gap between which the upper end of the continuous strip (16) of the bag slides, plays the role of a groove and correspondingly guides.
The rib (17) is at the filling station and the receiver is in the groove.
It plays the role of supporting the bag vertically.

Each platform has a device (26) for gripping the bag pulling flange, which includes a vertically downwardly extending paddle (27) that fits into the inner surface of the bag pulling 7 flange.

The paddle (27) was connected to a bracket (28), which was installed on the platform. It can freely rotate around an axis (29) extending in the transverse direction. The bracket (28) is loosely supported on the shaft (28) to account for rotational mismatches, and the bracket includes, on the opposite side of the paddle (27),
With a downwardly extending flange (30), as shown in detail in FIG. 23) on the back wall. The horizontal supports fit into any of the vertical rows of grooves (32). The guide structure (23) has a structure (
21, 22) are fixed in a suitable manner in the channel (25) so that they can move along the platform, the relative position of which can be optimized for opening and filling bags of any size. .

The filling station paddle (27) is fitted between the continuous strips (16) of each bag as the bag enters the filling station;
21, 22) are in a relatively closed position, for example as shown in FIGS. 3 and 5.

In order to ensure smooth operation of the tensioning flange gripping device (26), each bracket (28) is provided with spacer ribs (27A) extending inwardly and adjacent to each other.
) are attached so that the paddles (27) are slightly spaced apart to avoid contact resistance.

These ribs maintain the spacing between the paddles and when in contact with each other, the corresponding teeth (3 teeth) and grooves (32) are at a distinct distance from each other.

In this way, when the door is in the closed position, the bracket) (
28) is loose and the teeth (31) and grooves (32) are far enough apart that the paddle (27) is free to fall between the bag's tension flanges and close the zipper ( 13). When the filling station jaws (21, 22) are opened in preparation for filling, the surface of the bag pulls the paddles slightly inward, so that the teeth (31) of the bracket are aligned with the appropriate grooves ( 32) and prevents the paddle (27) from rotating upwardly from between the tension flanges. In this way, the paddle C27 can fix the pulling flange and pull apart the flange (14) when the jaws (21, 22) open, opening the opening zipper of each bag at the filling station. The vertical row of grooves into which the opening teeth (31) of the bracket fit are devices that automatically adjust the position of the paddle (27) and the zipper (13).
) to account for variations in the depth from the top of the bag at which it is located during the manufacturing process. When the jaws (21, 22) are opened, the pull 7 lunges (14) and the zipper profile (13) are forced open and the mouth of the bag is opened for filling from the top.

After the zipper is opened at the filling station and the bag is filled through this open mouth, the jaws (21, 22) are returned to the idle position again. However, at this point the corresponding zipper profiles are not yet in mesh, and in this state the filled bag advances horizontally towards region C.

In order for the paddle (27) to perform its function, it must be
It must fit at or near the leg of the profile. However, when a bag of chain is sent, the paddle is
The ends of the zipper profile of each bag are pressed by a molten spot closing. Therefore, the paddle (2
7) is free to rotate (about axis 28) to allow the melting spot to pass under it and to accommodate varying bag-to-bag heights between the zipper profile and the tension flange. ) must be able to do it. Nevertheless, at the same time, at the stage of opening the bag, the paddle (27
) must be prevented from freely rotating laterally at the mouth of the bag. Thus, the graded locking action of the teeth (31) and grooves (32) prevents rotational movement of the paddle (27) when opening the bag mouth and zipper profile for filling. The paddle bracket (28) is attached to the shaft (29)
It is attached so that it slides loosely on the paddle (2
7) must be able to freely rotate and move back and forth between the stage where the paddles (21, 22) must be fixed in order to grip the bag surface when opened.

Area C includes a sealing device (30A) and a cutting device (4
0). As shown in FIGS. 7 and 10, the sealing device (30A) includes a pair of laterally opposed surfaces (
31A, 32A) so that the zipper profile is returned to the closed, engaged position when the zipper (13) of the filled bag passes between them. 10th
As shown in the figure, one of the opposing surfaces (32A) is
It is biased to the pivot axis with an elasticity of 9 by a coupling spring (33) and is connected to the opposite surface of the sealing station (3
1A, 32A), which serves to close the zipper profile while supporting the filled bag. The zipper profile is mated with laterally opposed, flow direction-running grooves (35) made in the opposing surfaces (31A, 32A).

Each groove is adapted to match a corresponding zipper profile. On each opposing surface,
There are a plurality of grooves (35) in vertical rows, the grooves (35
) allows the relative vertical position dimensions of the zipper (13) to be different on each bag of the bag chain (11) during the manufacturing process, or to accommodate chains of zippered bags of different sizes. That's how it is.

A knife edge is located above and immediately downstream of the sealing station (30A) and a cutting station (40A).
0). As shown in Figure 10, the knife
The edge (41) extends across the path of the filled bag and is placed in the form of a harrow pointing slightly vertically upwards, as shown schematically in Figure 10A, to cut the bag. At times, a downward force acts. The knife edge connects each bag to the pulling flange (14)
, just below the top of the separation space (15) and remove the continuous strip (16) from the bag. The filled bag advances past the knife edge (41) and is attached to the chain (11) as shown in bag (12A) in FIG.
) and enter the realm as individual bags.

The removed continuous strip leaves area C and enters the area as the remaining part of the chain (11) advances further, as shown in the separated strip (18A) in FIGS. 1 and 4. As shown in FIG.
4), in which the continuous strip (18) is supported by a guideway device (42) with a lip flange (43) defining a gap from It's like that.

The detached strip (18
In order to prevent A) from backtracking and to continue to support the strip, a freely rotatable stop device (45), as shown in FIG. It is above. The stop device (45) has vertically downwardly directed teeth (4B) and presses the strip (IEiA) against the platform surface (40) and the counterweight (47). Can be rotated.As shown in FIG.
Beyond the vertical direction, there is no counterclockwise rotation because the teeth (4B) are too long to pass through the platform (44) in such a counterclockwise rotation.

The teeth thus support the strip (16A) on the platform surface, preventing it from backing up.

As shown in FIG. 3, the binsa device (5o) advances the bag of the chain (11) in areas C and D.

The pincer device (50) has a jaw (51) with an open mouth, and as shown in FIG. 9, it grasps each filled bag in area C and processes it in area C as shown in FIG. The pincer device (50) is attached to a frame (52), which pulls out the separated bags and takes them out from areas C and D, opens the bag as shown in Figure 12, and then releases the bags. It is supported on the free end of the jaw (51)
is attached, and the opposite end is attached so as to be rotatable in the horizontal direction about a vertical pin (53), as shown in FIG.

The gripping device (51) includes a first gripping portion (54) fixed to the arm stand frame (52), and an arm 71 at the negative end.
Nome (F+'))t=beep)/)h 4? +
42, w= Jr 7, 1-frame (52)
It consists of a second cooperating gripping part (55) in the form of a catch plate fastened to the outer end of a link arm (56) loosely supported on the link arm (56). As shown in Figure 12, the opposite inner end of the link arm (5B) extends through a hole (57) in the arm frame and ends with a cam follower surface (58) for supporting Tip of the wall (59)
It works as a cam device in conjunction with. The link arm (5B) is biased on the arm-frame (52) by a bonding spring (80). A stop part (81) is attached to the link arm, and the stopper (55) that performs the fastening operation is configured so that the link Φ arm (56) passes through the hole (57) of the arm e frame (52) and The recessed part of the cam follower surface (58) of the link arm is pressed down to the cam wall surface (59).
When the stop (61) fits into the recess of the hole (57), it closes on the fixed jaw (54). The cam follower surface (58) of the link 7-me is
The cam wall surface (53) is pressed by the action of the spring (60). When the relatively bulky portion of the cam follower surface (58) of the link arm is pressed against the cam wall surface (59), the jaw (55) with the fastening action loosens and the fixed jaw ( separated from 50.

As shown in Figure 12, Joe (55) performs the fastening action.
As the relatively raised portion of the cam follower surface (58) continues to move over the cam wall (58), the stop (61) counteracts the action of the spring (60) and the hole ( 57) and the arm outside the hole (57).
When placed on the shelf of the frame (52), it is in an open position relative to the other frame (50).As shown in FIG. ) returns to the direction of area C, link arm (5B
) is above the protrusion (82) and the stop is moved from the shelf of the arm frame (52) back into the hole (57) by the biasing action of the spring (8o).
5) is held in the open position by action of a stop (81) on the shelf surface of the arm frame (52).

The jaw (55) has a protrusion (82) that connects to the link arm (5).
8), it is closed over the fixed jaws (50). At this point, the gripping jaws (51) are in position C, as shown in FIG. 9, and the gripping jaws (54,
55) grabs the tensioning flange (14) of the filled bag between them as shown in FIG. to move forward in the horizontal direction. And as long as the pulling flanges of the bags are connected by continuous strips (16) as shown in FIG.
) are sequentially advanced horizontally. Pinsa outfit! After the arm-frame (50) has advanced the filled bag completely past the stage 'yon in area C and has completely separated it from the bags following it in the chain, the arm-frame (52) , continues the arc-shaped movement in the horizontal direction from the first position in area C, as shown in FIG. The atomizers (54, 55) continue to grip the filled bag, as shown by the dotted lines in Figure i3. When the arm book frame (52) reaches the second position as shown in Fig. 12, the bag (55) is separated from the bag (50) and the bag it is holding is released, and the filled bag is released by gravity. from the pincer device (50) to a suitable collection location.

(21) and (22) of the filling station in area B.
) is opened and closed by the rotation of a pair of meshing gears that are connected to the jaws (21, 22) and can rotate around a vertical bin that serves as a fulcrum around which the jaws rotate. As shown in FIGS. 3, 6 and 8, one of the gears (71) is moved by a connecting spring (72) into the parallel closed position as shown in FIG. ) is biased to rotate and bring. The other gear (7o) is the drive transmission connection part (
73), which rotates the gear (7o) and the gear (71) against the force of the spring (72) to open the filling station doors (21, 22), as shown in FIG. , the bag is opened and filled at the filling station.

In a preferred embodiment, the drive transmission connection (73) is a one-turn connection and the swing rod is fixed adjacent to the lower end of the arm-frame (52) of the Binsa device. It has a free end (75) that slides over the support bracket. The other end of the rod (70 is attached to a connecting part (77) fixed to the gear (70) by a method such as welding,
connected with pins. Adjustable stop mechanism (78
) is attached along the outer part of the free end of the rod (70) in the form of a threaded double nut.A stop mechanism (
78) rests on the surface supporting the bar of the bracket (76) until the binsa device conveys the filled and cut-off bag to the area D-C& to a second point where it releases the bag. The angle at which the openings (21, 22) of the filling station open can be varied by adjusting the stop mechanism (78) of the rod (70) in the length direction, depending on the size of the bag to be filled, etc.

In a preferred embodiment, the horizontal arcuate movement of the arm frame of the pincer device M (50) to completely withdraw the filled bag from region C to region C is controlled by the drive transmission device as shown in FIG. This is done by means of a footboard (80) connected to the arm writing frame (52) by (81). As shown in FIG. 3 and FIG.
), the pulley (8) moves the coaxial bevel gear (84).
3), thus rotating the pulley (83) and bevel gear (80).

A pivoting lever arm can also be used instead of the pulley (83). The bevel gear (84) is fixed to the arm frame (52) and can rotate around the vertical axis of the pin (53) around which the arm frame rotates.
85). In this way, when the foot plate (80) is pressed, the bevel gear (80) of the arm frame
5) rotates, and the pincer device moves from right to left, from the first point in area C to the second point in area C, as shown in Figure 3.
The pulley (83) moves by its arcuate motion,
In the opposite direction to the direction of rotation when pressing the foot treadle (80),
Biased by a coupling spring (88). Therefore, when the footboard (80) is returned, the pulley (
The bias by the coupling spring (86) of 83) works effectively, and the pulley (83) rotates the bevel gear (85) of the arm frame in the counterclockwise direction, and as shown in FIG. (50) is returned from the second position in the area to the first position in the area C by interlocking in a horizontal arc.

The bag (12) of the chain (11) has a - rotation tread plate (80
) through the device (10) at a rate of one bag each time the button is stepped on.

blown away.

The following description together with the accompanying drawings shows a preferred embodiment of a bag filling device according to the invention. without departing from the spirit and scope of the new concept that was uninvented and revealed.
Making changes or modifications is rotation. For example, the movement and operation of a pincer device can be performed by the user's hands.
The power of the footplate can be directly transmitted to the filling station which opens and closes the bags to be filled.

[Brief explanation of drawings]

FIG. 1 is a side elevational view of a bag filling device according to the present invention. FIG. 2 is a sectional view taken along the line II-II in FIG. 1. FIG. 3 is a front elevational view of the bag filling device of the present invention shown in FIG. 1 without showing the operation of the binsa device. FIG. 4 is a side elevational view of the bag filling apparatus of the present invention showing filled, sealed and separated bags being withdrawn from the filling station; FIG. 5 is a sectional view taken along the line V-■ in FIG. 4. FIG. 6 is a plan cross-sectional view showing the bag filling apparatus of the present invention in which the bag of the filling station is opened and the filled and sealed bag is pulled out from the filling station. FIG. 7 is a lateral sectional view of the bag filling apparatus of the present invention, looking downstream from the filling station. FIG. 8 is a sectional view taken along the line ■-■ in FIG. 7. FIG. 9 is a front elevational view of the bag filling apparatus of the present invention showing the gripping opening of the pincer device in the downstream portion of the filling station gripping a filled bag; FIG. 1O shows the bag filling apparatus of the present invention with the gripper of the pincer device in the downstream portion of the filling station pulling the filled bag through the sealing block and through the knife edge. Both elevation view. FIG. 10A is a side elevational view schematically showing the cutting angle of the knife edge with respect to the bag. FIG. 11 is a partial side elevational view of the drive transmission device. FIG. 12 is a partial elevational sectional view of the pincer device when the grip φ is opened.

Claims (20)

[Claims] (1) A device for sequentially filling and separating bags supplied in the form of a chain, wherein the bags are closed at the bottom and side ends, and the top opening is provided with a resealable zipper having an interlocking profile. The bag is closed by a device having a pair of tensioning flanges extending upwardly at the top thereof, the bag being secured by a continuous connecting strip mounted above the tensioning flanges. , connected to each other in the chain, and the bag extends within the chain at a location between its adjacent side edges beyond the zipper device to the top of the tensioning flange. separated from each other by a tear, the filling device comprises: a filling station for opening the bag by expanding the tension flange and zipper of each bag for filling; a sealing station for closing the zipper; and a sealing station for closing the zipper; a separation station for removing the continuous strip between the cracks; and a separation station for grasping and pulling each open bag through the sealing and separation station, in which the chain-shaped array of bags is inserted into the apparatus. A device that includes a bag feeding device that transports the filled bags one by one to a common point where they are separated. (2) said sealing station comprises a pair of surfaces between which a zipper passes, each said surface having a row of longitudinal grooves extending in the same direction as the zipper, and each groove having a row of longitudinal grooves extending in the same direction as the zipper; 2. The device of claim 1, wherein the device is adaptable to a zipper profile in response to changes in vertical position. (3) the separation station device comprises a knife edge extending across the path of the bag from the filling station, the knife edge extending just below the upper end of the tensioning flange; 2. A device according to claim 1, wherein the bag is separated at the position . 4. The device of claim 1, wherein the filling station device comprises an expanding device for expanding the tensioning flange and zipper. (5) The carrying device has a strip supporting device that grips the strip and supports the bag, and the strip supporting device is arranged along the carrying device so that its position can be adjusted. The device according to item 4. (6) the device of the filling station has a paddle extending vertically between the strip and the tensioning flange of the bag, abutting the zipper device; The apparatus according to claim 1, wherein the apparatus is adapted to be able to perform the following operations. (7) The device according to claim 6, wherein the paddle is provided with a locking device to prevent the paddle from pivoting when opening the bag. (8) The locking device is arranged so that the axis of rotation of the paddle can be placed in different positions to accommodate bags having different vertical depths between the top of the strip and the zipper device of the bag. 8. The device according to claim 7, wherein: (9) The feeding device grips the open bag under the upper part of the bag's tensioning flange.
Apparatus described in section. (10) The feeding device includes a drive transmission device connected to the filling station, and the pulling motion of the feeding device simultaneously causes the device of the filling station to expand. equipment. (11) The device according to claim 10, wherein the feeding device can be manually operated. (12) The feeding device has an opening/closing type grip at one end for gripping and releasing the bag, and a shaft connecting section at the other end, and can move in an arc around this. 2. The device of claim 1, comprising a pincer device. (13) after the pincer device has completely removed the bags from the sealing and separation station, at least one gripper is expanded by a cam device from another gripper;
The pincer device remains open while the chain returns to the next bag, and is closed by the cam device when the next bag enters between the gripping jaws. 13. The apparatus of claim 12, wherein: (14) The pincer device operates by operating a footboard.
13. The device of claim 12, wherein the device moves in an arc around the joint axis, and a transmission device transmits the operation of the footplate to the pincer device. 15. The apparatus of claim 1, further comprising means for preventing the strip from returning toward a filling station after it has been separated from the bag. (16) Each bag has a resealable opening at its upper end and a strip of zipper profile with a horizontally extending interlocking structure on the inner facing surface of the opening, and is connected to each other in a horizontal chain. A device for opening the mouth of each bag and the zipper profile used in a device for horizontally feeding connected bags, the device comprising: a pair of horizontally extending arms with the base thereof as an axis;
a device in which an arm rotates between a closed position defining a gap between which individual bags are placed and an open position in which the arm opens at right angles to the horizontal direction in which the bags are fed; and each of the arms; a pair of paddles extending vertically between the inner surfaces of the bag opening and mounted to rest on the profile of the zipper strip, the paddles being horizontal when the arms are in the closed position; a paddle attachment device adapted to be freely rotatable in a direction and lock the paddle when the arm is in an open position. (17) The paddle attachment device is made of a pin shaft around which the paddle rotates, allowing the paddle to move forward and backward in a direction perpendicular to the horizontal movement of the bag. An apparatus according to claim 16. (18) The paddle attachment device has a tooth and groove structure, one attached to the arm and the other attached to the paddle, so that when the arm is in the closed position, the paddle attachment device has a lateral gap from each other and when the arm is in the open position. When moving to the position, they are in a locked engagement position with each other.
The device according to item 6. 19. The apparatus of claim 18, wherein one of the teeth and grooves is in a vertical row. (20) a pair of ribs respectively attached to the paddles extend laterally toward each other and touch each other to create a lateral gap between the paddles when the arms are in the closed position; An apparatus according to claim 16.