JPH0576903B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) This invention is based on a bag material band made of a flat tube band (including a tube band with gussets folded on both sides) formed by an inflation method.
The present invention relates to a method and apparatus for manufacturing a carrier bag that is a bottom-seal type bag and has a handle attached to the opening edge.

(Prior art and its problems) Conventionally, this main manufacturing equipment was disclosed in Japanese Patent No.
It is described in No. 1011067 (Japanese Patent Publication No. 54-25468).

This publication describes a method and apparatus for attaching a handle to a bottom-sealed bag, in which the aforementioned bag material strip is intermittently transferred one bag at a time, and each time the belt is stopped, the handle is moved across the bag material strip at a predetermined station. A two-layered tape-like handle in which discontinuous cuts are made in the direction, a part of the discontinuous cuts is made large enough to allow the tape-like handle to be inserted, and the tape-like handle is curved into a U-shape from this part. and weld both ends of these handles near the discontinuous cut in the bag material strip, and then weld the bag material strip to the discontinuous cut at a station further downstream from this welding station. It is described that a carrying bag with a handle is produced by applying a tensile force to the cut to separate the cut and seal the bottom portion of the bag material with a handle which has been made into individual bag sizes.

However, in the technique described in this publication, the opening edge of the bag is formed by pulling and cutting discontinuous cuts, which not only result in jagged edges at predetermined pitches, resulting in a poor appearance and feel, but also make it difficult to place the packaged items in the bag. When the bag is hung by holding the handle in the hand, there is a risk that stress will be concentrated in this jagged part and the bag will break from this part. To the best of applicant's knowledge, it is not found on the market.

(Problems to be Solved) This invention improves the shortcomings of the method and apparatus described in the above-mentioned publications, and allows a tape-like handle to be easily and reliably attached to a bottom-sealed bag, as well as to form a bag. The purpose of the present invention is to provide a bag with a beautiful, good-looking, and durable opening edge and to enable efficient production, and to provide the market with a method and apparatus that satisfy these points.

(Means for Solving the Problems) This invention provides (a) bag material strips made of two flat tube strips (including those with gusset folds on both sides) that are lined up on the left and right in the same plane and are simultaneously conveyed intermittently; The process of heat sealing each bag in the transverse direction and cutting the vicinity thereof, positioning the bottom of each bag on the downstream side and sending it out.

(b) The two bags sent out at the same time are placed horizontally one bag at a time on each circulation pedestal of the first conveyance means that circulates in opposite directions in a horizontal plane;
While keeping each bag in a horizontal position, rotate each bag 90 degrees so that the openings of the bags are on the outside.
The step of intermittently transporting each bag from the bag opening in the transport section in the same direction as the feeding direction to the handle attachment station, and further rotating 90 degrees and transporting the bag to the bag feeding station.

(c) At the bag edge opening or handle station, the opening edges of the bags that arrive at this position are separated vertically each time, and a set of two tape-shaped hand materials are curved into a U-shape. The process of inserting both ends of a tape-shaped handle curved into the inside of the separated opening edges of these bags and welding them to the opening edges of the bags to form a bag with a handle.

(d) In the bag delivery station, the handles of the bag with handles are sequentially overlapped and engaged with the pins in a second conveying means in which upward pins circulate.

(E) A step of transporting the second transport means one pitch each time a predetermined number of bags are hooked to the single pin.

The problem has been solved by creating a method for manufacturing a bottom sealed bag with a handle that includes the steps (a) to (e) above.

Another invention relates to a common intermittent drive conveyor for sandwiching bag material strips made of two flat tube strips (including those with gusset folds on both sides) from above and below while left and right parallel on the same plane; A common welding device in which a pair of welding jaws clamps and separates the bag material strip made of the two flat tube strips in the transverse direction each time the conveyor stops, and a common welding device provided immediately downstream of the conveyor in synchronization with the welding device. A bag-making device equipped with a common cutting device that operates, and a bag-making device located downstream of the bag-making device that stops at each station and supports the bags made by the bag-making device in a horizontal state. A first conveying device is provided with a pair of conveyors which are provided with receiving stands equidistantly spaced from each other and which circulate in opposite directions. The moving parts serve as bag receiving stations, and downstream of these bag receiving stations, each conveyor turns at right angles in the same direction as the bag delivery direction, and the bag consists of a straight section of the conveyor extending downstream from this. A bag lip opening or handle attachment station is provided, and a conveyor portion downstream of the bag lip opening or handle attachment station is provided as a bag delivery station; An opening device equipped with a pair of suction jaws that pinch and adsorb the upper and lower film at the mouth edge of the bag from above and below and separate from the top and bottom each time the first conveyance device stops, and a handle material band wound into a roll. a handle cutting means for cutting these handle material strips into handle widths; a curving means for curving the handle material strips into a U-shape; Insert both ends of the double-layered tape-like handle into the opening edge of the bag at the handle attachment station,
A handle attachment device is provided with a handle welding means for welding the bag to the opening edge of the bag, and further downstream of the bag delivery station is a circulating second conveying means having upward pins at predetermined intervals. is provided, and each time the first conveyance means stops, the bag holders that have reached the delivery station are moved or tilted so that the handles of the bags on these holders are engaged with the pins of the second conveyance means. The problem was solved by creating an apparatus for manufacturing a sealed-bottom bag with a handle, which is equipped with an operating mechanism and is made by combining the above-mentioned components.

(Effects of the method invention) In this method, which is configured as described above, there are two lines from bag making to bag completion, and both are almost linear flows (see Figure 8). ), each work or handle installation operation is
These can be done symmetrically from both sides of the flow, the work arrangement is orderly, and when the method is mechanized, the equipment can be arranged symmetrically, so the operation of each operating part is also symmetrical. Then,
There are a considerable number of areas where vibrations are canceled out, making it possible to create a device with less vibration as a whole.

In addition, since two lines operate simultaneously, productivity is also good.

Furthermore, in this method, the first conveying means has two series, and in the bag delivery station thereof, it is easy to engage the handle of each bag with the upward pin of the second conveying means, and as the second conveying means, Either a single conveying means or a pair of bilaterally symmetrical conveying means can be employed.

Since a predetermined number of the bags finally sent out by the second conveyance means are hooked onto a pin, the bags can be taken out by grasping the handle portion of the bag one by one from the pin, and counting is easy.

(Function of the device invention) As a function of the device invention of this application, firstly, two bag material strips are inserted in parallel in the same plane into the bag making device section, and when all the devices are operated, the conventional bottom seal of this type is sealed. Just like the equipment for manufacturing molded bags,
Each bag material strip is transported by a pair of clamping conveyor rollers.
These bag material strips are intermittently conveyed in parallel, and each time they are stopped, the bag material strips are welded in the transverse direction at a common pair of welding jaws at a position upstream of the conveying roller to form a transverse welded portion. Furthermore, at a downstream position of the conveyance roller, a cutting device cuts the bag material strips that are successively fed out downstream of the welded portion, and each bag material strip having a bottom seal portion formed by the welded portion is cut by a cutting device. Two bags are manufactured in parallel.

Next, the bags sent out by this bag making device are located exactly at the station positions of the pair of first conveying means.

In other words, the positions of the stations of horizontal pedestals provided at equal intervals on the horizontally circulating conveyor serving as the first conveying means are exactly the bag delivery positions of the bag making apparatus. The receivers of the pair of first conveying means receive the bags one by one, and move symmetrically one station each time one bag is conveyed. The next station from the bag receiving station is provided with at least one bag lip opening or handle attachment station at a position where this cradle has turned 90 degrees, and usually the outside of these devices after the cradle has rotated 90 degrees. Approximately three stations are sequentially provided at positions, and the pedestal is sequentially stopped and moved to these positions.

In the bag opening/handle attachment station described above, the mouth edge of the bag is first held by a pair of vacuum suction jaws in a single station or several stations, and the upper and lower films of the bag opening edge are separately separated. The bag is attracted to the vacuum suction jaws, and the opening edge of the bag is opened vertically by the vertical separation of the pair of vacuum suction jaws. Alternatively, the bag is opened by mechanically grasping the upper and lower films of the opening edge of the bag and spreading them up and down.

On the other hand, the handle attachment device installed at the opening of the bag mouth edge or at the handle attachment station position allows the handle material strips wound into rolls to be stacked in two layers and fed out in conjunction with the bag making process for each width of the handle. Then, the two-ply tape-like handle is cut into a handle width by a handle cutting device, and the two-ply tape-like handle is bent into a U-shape, and both ends of the tape-like handle are inserted into the opening edge of the opened bag. . Next, the handle-like handle welding jaws, which weld both ends of the tape-like handle and the overlapped portion of the bag's film from above and below, sandwich the two tape-like handles, one at the top and bottom of the opening edge of the bag. Welded to the film.

The bag with the tape-like handle attached to the opening in this manner is further transported to the next delivery station while being placed on the pedestal of the first transport means.

At this delivery station, the handles of the bags are successively engaged with the upwardly directed pins of the second conveying means, and several bags, for example 5 bags, 10 bags, etc., are attached to a single said pin.
When 12 bags etc. are combined and accumulated, the second conveying means operates one step.

The second conveyance means may be a second horizontal circulating conveyor that circulates in opposite directions like the first conveyance means, or a single conveyor may carry bags delivered two bags at a time from the first conveyance means. A set of two upward pins that are received separately at a time is used, and a predetermined number of bags are held on each set of pins using a second conveying means in which one set of upward pins is provided at a predetermined pitch. In this case, even if the second conveying means is operated intermittently for one pitch, the present invention is the same.

The second conveying means operates intermittently and circulates,
The completed bags, which are hooked on the upward pin one by one, are taken out all at once by manual or mechanical power at an arbitrary station on the downstream side.

(Effects of the device invention) In this device invention, since it is configured and operates as described above, the method described above can be carried out, and the first conveyance means and the second conveyance means of the bag making device are sequentially moved in a straight line. Since the parts are arranged in a straight line, the entire device becomes compact and the layout of the factory layout is easy.

In addition, since the first conveying means, which is the main part of this device, is a pair of symmetrical horizontal circulation conveyors that rotate in opposite directions in the same horizontal plane, the vibrations caused by this operation are caused by many parts that move symmetrically. In many cases, the inertial forces that occur during intermittent movement of each actuating member are canceled out, and the vibration noise of the entire device is reduced.

Further, the bag making device sequentially makes two bags in parallel, and the direction of each bag is changed by the first conveying means so that the opening of each bag is on the outside,
Since it has the effect of sequentially conveying the bags in the width direction, each bag conveyed by the first conveying means can be sequentially opened from both sides of the first conveying means, and a handle can be attached thereto. There is no need to install a handle attachment device with a complicated structure on top of the bag making device as in Equipment Special Publication No. 54-25468.
A bag rim opening device and a handle attachment device are provided on both sides of the first conveyance means, making it easy to set up and repair and inspect each operating section. Furthermore, the handle material strip can be supplied to the handle mounting device from the side of the device, resulting in good work efficiency.

Furthermore, with this device, once the bag material strip and the handle material strip are supplied and the operation is started, all that is required is to take out the completed bags hooked to the upward pins of the second conveying means every predetermined number of bags, which can be done manually. Even though it is a simple process, it is easy to do, and the labor is often reduced because two sets of several bags are manufactured at a time.

(Example) The apparatus of the present invention will now be described based on an example.

A is a bag making device in which two bag material strips F ₁ and F ₂ made of flat tubes made of synthetic resin are conveyed side by side, and bottom seal type bags B ₁ and B ₂ can be manufactured in parallel at the same time. For example, a wide bag making device among known bag making devices is used. The outline of the structure is as follows: Fabric support devices 10a, 10 that support the bag material bands _F1 , _F2 wound into rolls at the most upstream position.
A pair of independent clamping type pull-out rolls _11a , 11b that pull out the bag material strips F 1 and F ₂ from b, and a common pair that can collectively clamp the two bag material strips F ₁ and F ₂ downstream from this. A pinch-type intermittent drive conveyor (including rolls) 12, the pull-out roll 1
A welding device 1 consisting of a pedestal 13 and a heat sealer 14 for collectively welding two bag material bands F ₁ and F ₂ in the transverse direction between 1a and 11b and a conveyor 12.
5 and a group of several common guide rollers 16 that define a passage for the bag material bands F ₁ , F ₂ between the welding device 15 and the conveyor 12, and a group of guide rollers 16 whose positions are changed in the vertical direction to change the length of the passage. Each dancer roller 17 is equipped with a common dancer roller 17. Further, on the downstream side of the conveyor 12, there is provided a cutting device 18 which is activated every time the conveyor 12 stops, and cuts the bag material bands F ₁ and F ₂ fed in parallel by the conveyor 12 all at once. In this way, independent bottom-sealed bags B ₁ and B ₂ are manufactured.

C is a first conveyance means, which is provided continuously downstream of the bag making apparatus A described above. This first conveyance means C is provided with horizontal circulation conveyors 20a and 20b, which are a pair of conveyors that independently and separately convey the two bags made by the bag making apparatus A. , 20b each have a substantially rectangular circulation path when viewed from above, and endless chains 21a, 21b are provided with bag holders 22a, 22b at equal intervals. The machine frame 23 is equipped so that the platforms 22a and 22b can be operated intermittently in opposite directions. The size of each bag holder 22a, 22b is preferably such that at least 2/3 of the largest size bags B ₁ and B ₂ carried out from the bag making apparatus A described above can be placed thereon. The bases of these bag holders 22a, 22b are pivotally connected to the chain elements of the endless chains 21a, 21b by bag holder shafts 24.
a, 22b move the endless chains 21a, 21b from a horizontal position to an inclined and vertical position around the bag holder shaft 24 by a cam 25 provided on the machine frame 23 along the endless chains 21a, 21b. Each bag holder 22a,
22b is provided so as to be located approximately inside the loop formed by the respective endless chains 21a and 21b when in the horizontal position.

In the illustrated example, each bag holder 22a, 22b
The outer edge of each has a rough comb-teeth or fork shape, and is used for lower vacuum suction jaws 32 and handle welder 4, which will be described later.
When 7 and 48 operate, the bag holders 22a and 22b
is made so that it does not get in the way.

In the bag receiving stands 22a, 22b, horizontal circulation conveyors 20a, 2 facing the bag making device A are installed.
Bag receiving stations 26a and 26 are installed at the portions of bag 0b that run in the direction perpendicular to the direction in which the bags _B1 and _B2 are sent out.
b, and at least one, in the illustrated three stations 2, at an outer position of the horizontal circulation conveyors 20a, 20b turned 90° from this.
7a, 28a, 29a and 27b, 28b, 29
Further downstream from the bag opening and handle attachment stations 30a, 30b, bag delivery stations 31a, 31b are provided in parallel with the bag receiving stations 26a, 26b and in the opposite direction of travel. Yes (see Figure 1).

The above-mentioned stations are located at distances that are an integral multiple of the pitch running dimensions of the horizontal circulation conveyors 20a and 20b that operate intermittently for each bag, and each bag receiving stand 22a and 22b is located at a distance from the horizontal circulation conveyor 20a and 20b, which operate intermittently for each bag. The horizontal state is maintained by the cam 25 from 26a, 26b until the bag passes through the bag mouth opening and the handle attachment stations 30a, 30b, and at the bag delivery stations 31a, 31b, the inside is highly inclined, and the bag delivery station Bag receiving station 26 from 31a and 31b
The shape of the cam 25 is determined so that the cam 25 stands upright and moves vertically between a and 26b.

The bag holders 22a and 22b in the bag holder stations 26a and 26b function as bag holders of the bag making apparatus A, similar to the bag holders of a conventional bag making machine.

Bag mouth opening and handle attachment station 30
The most upstream station 2 of a and 30b
7a, 27b or 28a to 28a, 27b to 28b each have a vacuum suction jaw 3 with the mouth edge of the bag down.
Bag opening devices D _{1 and D 2 having two opening devices D 1} and D ₂ are provided, and bag receiving stands 22 a and 22 b carried into these stations are provided.
The mouth edges of the upper bags B ₁ and B ₂ are decompressed from above and below with suction jaws 32
The bags B ₁ and B 2 are then held in place, separated vertically to open the edges of the bags B ₁ and B ₂ , and transported to the next station with the edges of _the bags open.

Among the vacuum suction jaws 32, the lower vacuum suction jaw 3
2 is positioned between the comb teeth of the bag holders 22a and 22b (see FIG. 4).

Bag mouth opening and handle attachment station 30
The most downstream station 2 of a and 30b
9a and 29b are provided as stations for attaching the tape-like handle H.

The handle mounting devices E ₁ and E ₂ are not particularly limited, but the handle mounting devices E 1 and E 2 may be used to support a roll of a handle material band made of a thick synthetic resin sheet band T.
two handle material band support devices 40, 41; a handle material feeding roller 42, which is a pair of clamping type handle material band conveying means for stacking two of these sheet bands T and feeding them out intermittently by the width of the handle in the form of a tape;
Handle cutting device 4 that cuts this to handle width
3. Handle bending members 44, 45 consisting of a pair of clamps that hold the cut two-ply tape-like handle H from above and below, and bags B ₁ and B that open the bent two-ply tape-like handle H. At least a _handle welding device 49 having a feed-in clamping roller 46 and two pairs of spot welders 47 and 48 on the left _and right sides and upper and lower sides welded to both ends of the tape-like handle H and the opening edges of the bags B ₁ and B 2 . The first transport means C is synchronized so that it operates one cycle every time the first transport means C travels one station.

The spot welders 47 and 48 are positioned between the comb teeth of the bag holders 22a and 22b (see FIG. 5).

These handle attachment devices E ₁ and E ₂ are provided outside the stations 29a and 29b of the first conveyance means C, respectively, in the conveyance direction of the sheet band T, which is the handle material band, that is, the bag B of the tape-shaped handle H. ₁ , the insertion direction into B ₂ is each bag running in the width direction
In the depth direction of B ₁ and B ₂ , that is, the station 29a,
The direction is perpendicular to the running direction of the bag holders 22a and 22b in the portion 29b (see FIGS. 5 and 6).

A second conveyance means G is provided further downstream of the bag delivery stations 31a, 31b, and this second conveyance means 6, like the first conveyance means C, has handles that are separately and simultaneously delivered by the bag delivery stations 31a, 31b. The second horizontal circulation conveyors 50a and 50b are a pair of conveyors for separately conveying the attached bags _B3 and _B4 , respectively, and these second horizontal circulation conveyors 50a and 50b have a substantially rectangular circulation path when viewed from above. Upward pins 52a and 5 are formed of connecting pins of several chain elements of endless chains 51a and 51b, respectively.
These second horizontal circulation conveyors 50a, 50b are formed so as to protrude upward, and these second horizontal circulation conveyors 50a, 50b are arranged so that a predetermined number (usually 5
or 6 times), the aforementioned pin 52a,
It is connected in conjunction with the first conveyance means C so that it operates one pitch of 52b.

The aforementioned bag delivery stations 31a and 31b
, the bags with handles B ₃ are reached sequentially,
In order to tilt the bag holder 22a, 22b on which B ₄ is mounted, the cam 25 attached to the machine frame 23 described above may be used to tilt the bag holder 22a, 22b as shown in FIG. Each time the bag reaches the delivery station 31a, 31b, a pneumatic actuation mechanism 60 fixed to the machine frame 23 pushes up the bag holder 22a, 22b, and the bag holders 22a, 22b are moved around the pivot 24. 22b is tilted, and each bag on this is attached to each pin 5 of the second conveying means G.
The handle may be slid down in the directions 2a and 52b and engaged with the handle.

(Operations and effects of the embodiment) Prior to operating the device of this embodiment, the bag material bands F ₁ and F ₂ are supplied to the bag making device A, and handles are provided on both sides of the first conveying means C, respectively. The method of the present invention can be carried out by supplying two stacked handle material strips T to the mounting devices E ₁ and E ₂ and operating the devices, and the same effect as that of the device of the present invention can be achieved.

In particular, as an effect specific to the embodiment, each bag holder 22
Since a and 22b operate in the above-mentioned posture,
Particularly in the central portion of the return path of the horizontal circulation conveyors 20a, 20b, the bag receivers 22a, 22b pass one after another in an upright position, so the overall width of the first conveying means C does not become so wide.

In addition, the size of each bag holder 22a, 22b is such that it can support at least 2/3 of the area of each bag B ₁ , B ₂ to be made, so these can be stably supported and the overall size of the device can be increased. is suppressed to some extent. Furthermore, since the outer edge of each of the bag holders 22a and 22b located outside the horizontal circulation loop is formed into a rough comb-like shape, the mouth edges of the bags B ₁ and B ₂ can be supported in a horizontal state. , and bag opening station 27
a, 28a, 27b, 28b, and the position of the vacuum suction jaws 32 at the time of opening, and the position of the spot welders 47, 48 on the handle attachment stations 29a, 29b, are determined by the aforementioned bag holders 22a, 2.
Since it is located between the comb teeth of 2b, it is possible to suction and open the bags B ₁ and B ₂ in a horizontal state, or to securely weld the tape-like handle H.

[Brief explanation of the drawing]

The drawings relate to this invention, and FIG. 1 is a schematic explanatory diagram of the entire device, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a partially vertical side view of a bag receiving stand in a bag receiving station. , Fig. 4 is a partially longitudinal side view of the opening station, Fig. 5 is a schematic plan view of the handle attachment station, Fig. 6 is a side view of Fig. 5, and Fig. 7 is a partially longitudinal side view of the bag delivery station. 8 are perspective views showing the entire process of attaching the bag making handle. Explanation of main symbols in the figure: A...Bag making device, C...
...First conveyance means, D ₁ , D ₂ ... Opening device, E ₁ , E ₂
...Handle attachment device, H...Tape-like handle, G...Second conveyance means.

Claims (1)

[Scope of Claims] 1 (a) Bag material strips consisting of two flat tube strips (including those with gusset folds on both sides) are lined up on the left and right in the same plane and are simultaneously conveyed intermittently, and at each stop, these The process of heat-sealing in the transverse direction and cutting the vicinity, positioning the bottom of each bag on the downstream side and sending it out. (b) The two bags sent out at the same time are placed horizontally one bag at a time on each circulation pedestal of the first conveyance means that circulates in opposite directions in a horizontal plane;
While keeping each bag in a horizontal position, rotate each bag 90 degrees so that the openings of the bags are on the outside.
The step of intermittently transporting each bag from the bag opening in the transport section in the same direction as the feeding direction to the handle attachment station, and further rotating 90 degrees and transporting the bag to the bag feeding station. (c) At the bag edge opening or handle station, the opening edges of the bags that arrive at this position are separated vertically each time, and a set of two tape-shaped hand materials are curved into a U-shape. The process of inserting both ends of a tape-shaped handle curved into the inside of the separated opening edges of these bags and welding them to the opening edges of the bags to form a bag with a handle. (d) In the bag delivery station, the handles of the bag with handles are sequentially overlapped and engaged with the pins in a second conveying means in which upward pins circulate. (E) A step of transporting the second transport means one pitch each time a predetermined number of bags are hooked to the single pin. A method for manufacturing a bottom sealed bag with a handle, including the steps (a) to (e) above. 2. The method of manufacturing a bottom-sealed bag with a handle according to claim 1, wherein the method of separating the opening edge of the bag is a method of adsorbing it with a vacuum suction cup and separating it in the vertical direction. 3. The method of separating the opening edge of the bag is to move the upper and lower films relatively in the plane direction a little, and then suck them with a vacuum suction cup and separate them in the vertical direction. A method for manufacturing bottom-sealed bags. 4. The method of separating the opening edges of the bag is to mechanically grasp the upper and lower films separately, and then separate them and open the bag. Method. 5. The method of manufacturing a bottom-sealed bag with a handle according to claim 1, wherein the method of separating the opening edge of the bag and the method of attaching the handle are performed at the same station over time. 6. The method of manufacturing a bottom sealed bag with a handle according to claim 1, wherein the method of separating the opening edge of the bag and the method of attaching the handle are performed sequentially over time at different stations. 7. A common intermittent drive conveyor that holds bag material strips consisting of two flat tube strips (including those with gusset folds on both sides) from above and below in parallel on the same plane from side to side, and a stop of said conveyor on the upstream side of this conveyor. A common welding device in which a pair of welding jaws clamps and separates the bag material strip made of the two flat tube strips in the transverse direction every time, and a common welding device that operates synchronously with the welding device immediately downstream of the conveyor. A bag making device equipped with a cutting device is provided, and a pedestal is provided at a downstream position of the bag making device to stop at each station and support the bags made by the bag making device in a horizontal state. A first conveying device is provided which consists of a pair of conveyors arranged at equal intervals and circulating in opposite directions, and each conveyor has a portion that moves in a direction perpendicular to the direction in which the bags are sent out and in a direction that moves away from each other. The conveyors are configured as bag receiving stations, and on the downstream side of the bag receiving stations, each conveyor bends at right angles in the same direction as the bag delivery direction, and has a bag edge opening or a straight portion of the conveyor extending downstream from the conveyor. A handle attachment station is provided, and a portion of the conveyor downstream of the bag mouth edge or opening and the handle attachment station is provided as a bag delivery station; Every time the device stops, the film on the top and bottom edges of the bag is pinched and suctioned from above and below, and an opening device is equipped with a pair of suction jaws that move away from each other vertically, and two layers of handle material strips are stacked together in a roll. means for conveying handle widths at a time, handle cutting means for cutting these handle material strips into handle widths, curving means for curving this into a U-shape, and stacking the two curved sheets each time the first conveying means stops. Insert both ends of the tape-shaped handle into the opening edge of the bag at the handle attachment station,
A handle attachment device is provided with a handle welding means for welding the bag to the opening edge of the bag, and further downstream of the bag delivery station is a circulating second conveying means having upward pins at predetermined intervals. is provided, and each time the first conveyance means stops, the bag holders that have reached the delivery station are moved or tilted so that the handles of the bags on these holders are engaged with the pins of the second conveyance means. An apparatus for manufacturing a bottom-sealed bag with a handle, which is equipped with an operating mechanism and is made by combining the above-mentioned components. 8 The bag edge opening or handle attachment station is composed of two or more stations in order from the upstream side, and among these, the most upstream station has the opening of the bag at the stop level of the first conveying means. The bottom with a handle according to claim 7, further comprising the opening device for opening the bag by pinching the mouth edge of the bag from above and below, and a handle attachment device is provided at a station downstream from the opening device. Seal type bag manufacturing equipment.