JPS6311044Y2 - - Google Patents

Description

[Detailed explanation of the invention] Purpose of the invention (industrial application field) This invention is for expanding a cylindrical film to form a bag, and tying the opening of the bag with items placed in the bag. The present invention relates to a bag opening clamping device installed between an expanding bag making device and a bag opening binding device in a bag filling and packaging machine.

(Prior Art) Conventionally, this type of packaging machine has an expansion bag making device that expands a cylindrical film that has been formed into a cylindrical shape into a bag shape, and a cylindrical bag that is expanded into a bag shape. A clamp device that clamps and transfers the bag at both ends and opens the mouth end of the same cylindrical bag, and a clamp device that clamps both ends of the bag and opens the mouth end of the same cylindrical bag. The clamp device is provided between the expansion bag making device and the binding device.

(Problem to be solved by the invention) However, since the clamping device only acts on either the expansion bag making device or the bundling device, either one of the two devices cannot be operated. I had no choice but to stop. Therefore, there was a technical problem in terms of shortening the packaging process.

Therefore, the present invention has been devised for the purpose of shortening the packaging work by effectively cooperating with each other the expansion bag making device, clamping device, and binding device that perform the packaging work.

Structure of the invention (means for solving the problem) That is, the invention is installed between an expansion bag making device A and a bag opening binding device C, as shown in the drawings of the embodiment described later. In the bag opening clamping device B, support members 27, 28, 29, 30, 32,
At 33, there is a clamping part 3 for clamping one side of the opening of the bag.
The supporting members 27, 28, 29, 30 are provided with movable mechanisms 36, 37 that support both the clamping plates 31, 34 of No. , 32, 33, movable members 38, 39, 4 are movably supported.
0, 41, and 43 support both clamping plates 42 and 44 of a clamping part 45 that clamps the other side of the bag opening so as to be openable and closable with respect to each other.
4 are provided with movable mechanisms 46 and 47 for opening and closing operation,
Furthermore, the moving members 38, 39, 40, 41, 4
3 is coupled with movable mechanisms 48, 49, and 50 that move the two clamping portions 35 and 45 toward and away from each other.

(Function) And the support members 27, 28, 29, 3
0, 32, 33, both clamping plates 31, 34, movable mechanisms 36, 37, and moving members 38, 39, 40, 41,
43, both clamping plates 42, 44, and movable mechanisms 46, 47
A pair of clamping mechanisms 26 constituted by the movable mechanisms 48, 49, and 50 can alternately cooperate with the expansion bag making device A and the binding device C by intermittent rotation of the rotating shaft 25.

(Example) An example embodying this invention will be described below with reference to the drawings.The packaging machine according to this invention has been prepared in advance as shown in the outline in Figs. 1, 16, and 17. An expanding bag-making device A that expands a cylindrical film F that is fed in a closed state even though it is formed into a cylindrical shape into a bag shape, and both ends f of the cylindrical bag _F1 that has been expanded into a bag shape. A clamping device B that clamps and transfers the cylindrical bag _F1 to the binding device C and opens the mouth end _f1 of the cylindrical bag _F1 wide; and an open-shaped bag held by the clamping device B.
The bag is equipped with a binding device C that ties and bundles the bag opening f ₂ using binding materials such as tapes t ₁ and t ₂ after various items W have been put into F ₂ . Next, each device will be explained in detail.

Configuration of Expansion Bag Making Apparatus A In this example apparatus, a roll-shaped film body RF is moved up and down within a certain range by an elevating arm 1 that is implemented in a vertical format and is connected to a drive unit in a packaging machine. The film F, which is fed out in a band shape in a closed state, is fed out by the required length and expanded into a tube bag shape. It is constructed by assembling each component into 6. In FIG. 1 and FIG. 16, 2 is a shutter device for inserting and closing the film F, 3 is a cutter, 4 is a sealing device, and 5 is a mat-shaped shutter.

Now, regarding the movable body 6 that can be moved up and down,
As shown in FIG. 6, a pair of upper and lower connecting plates 8 are fixed between one side of both side plates 7, so that the same side plates 7 face each other. The upper part of a rotating plate 9 is rotatably supported on the upper inner surface of each side plate 7.
A connecting plate 10 is fixed between the lower end portions of. Support rods 11 each having a rotatable roller 11a in the center are arranged and fixed in parallel between the lower ends of both rotating plates 9 and both side plates 7, and also between the upper ends thereof. Guide rods 12 are arranged and fixed in parallel. Both ends of both guide rods 12 are provided only in one direction (arrow P in Fig. 10).
A rotatable bearing 12b is attached, a metal tube 12c is attached between both bearings 12b, and a rubber tube 12a is further attached to the outer periphery of this metal tube 12c.
is attached.

Further, as shown in FIGS. 8 and 10, a screw rod 13 for maintaining distance that can protrude inward is screwed into the lower part of the inner surface of the pair of rotating plates 9, and one screw rod 13 and the other screw rod 13 are screwed together. A tension spring 15 is attached between one side plate 7 and a screw rod 14 screwed together. 9th
As shown in the figure, the rotary plate 9 is rotatable against the biasing force of the tension spring 15, and is normally positioned between the inner surfaces of the side plates 7 due to the biasing force of the tension spring 15. (See Fig. 10) In this state, as shown in Fig. 10, the pair of rollers 1
1a and between the rubber tubes 12a, a space is provided to support an expander 19, which will be described later.

As shown in FIG. 9, the adjusting screw 16 provided at the center of the lower end of the side plate 7 has its tip abutted against one side of the rotary plate 9 (see FIG. 10), and is connected to the pair of rollers 11a and the rubber. The spacing between the tubes 12a is adjusted. Further, as shown in FIG. 9, both ends of the guide rod 12 are loosely fitted into shaft holes 17 formed in both side plates 7 and both rotating plates 9, and are pressed from the sides with screws 18 so as to be coaxial. It is supported eccentrically within the hole 17.

The aforementioned expander 19, as shown in FIG.
A first guide tool 21 and a second guide tool 22 are mounted on a support leg plate 20 made of resin. First, the supporting leg plate 20
has a concave groove 23 that engages with the rubber tube 12a of the guide rod 12 at the upper end of both sides, and a recess 2 that engages with the roller 11a of the support rod 11 at the center of the lower end of both sides.
4 respectively.

The first guide device 21 is for expanding and guiding the film in the width direction, and has a pair of guide pieces 21b erected at opposite ends of a support rod 21a screwed to the upper end of the support leg piece 20 at symmetrical positions relative to the center of the film. ing. On the other hand, the second guide 22 guides the film in the opening direction and is made of a plate spring.
Pedestal 22a screwed to the center of the support rod 21a
4 which has an elastic biasing force at the ends of both the front and rear edges of
The book guide flexible piece 22b is arranged to align with the center of the film.

When setting the expander 19 configured as described above, as shown in FIGS.
The support leg plate 20 is attached to the rubber tubes 12a of both guide rods 12 so that the supporting leg plate 20 is positioned horizontally above the outer periphery of the rubber tubes 12a.
and between the rollers 11a of both support rods 11,
The rubber cylinder 12a and the groove 23 of the support leg plate 20 engage with each other, and the roller 11a and the recess 24 of the support leg plate 20 engage with each other, so that the movable body 6 is maintained in equilibrium in an upright state. These engagements prevent the expander 19 from coming off above the movable body 6, and by adjusting the protrusion of the screw rod 13 on the inner surface of the rotary plate 9, the expander 19 can be moved in the width direction. Preventing it from moving.

In this set state of the expander 19, the expander 19 is moved by rotating the rotating plate 9 against the biasing force of the tension spring 15.
It can be easily removed from the

Configuration of Clamping Device B In this example device, as shown in FIG. They are placed horizontally on both sides. That is, regarding this double clamping mechanism 26, a rail 28 and a guide shaft 29 are provided on both sides of a support plate 27 fixed to a rotating shaft 25 and protrude to an appropriate length.
A fixing plate 30 is installed between the tips of the two. A fixed side clamping plate 31 is provided at the center of the fixed plate 30. Further, a support shaft 33 is provided between the side plates 32 fixed to both sides of the fixed plate 30, and a movable clamping plate 34 facing the fixed side clamping plate 31 is attached to the center of the support shaft 33. These two clamping plates 31, 3
4 forms an outer clamping portion 35.

An air cylinder 36 is installed on the outside of the rail 28 and is fixed to the side plate 32.
As shown in the figure, the ram shaft 3 of this cylinder 36
The tip of the arm 6a is pivotally attached to the lower end of an arm 37 fixed to one side of the support shaft 33. Therefore,
Due to the operation of this air cylinder 36, the ram shaft 3
6a moves forward, the support shaft 33 is rotated together with the arm 37, so that the movable clamping plate 3
4 is tilted away from the fixed side clamping plate 31.

On the other hand, inside the fixed plate 30, a roller 40 and a sliding body 41 are respectively attached to the outside of both side plates 39 connected by a connecting shaft 38, and the roller 40 rests on the rail 28, and the sliding body 41 Moving object 41
is movably fitted into the guide shaft 29. A fixed side clamping plate 42 is provided between the both side plates 39 so as to face the fixed side clamping plate 31.

Further, a support shaft 43 is provided between the both side plates 39 at a position inside the fixed side clamping plate 42, and a movable clamping plate 44 is fixed to this support shaft 43 so as to face the fixed side clamping plate 42. An inner clamping portion 45 is formed by these clamping plates 42 and 44.

An air cylinder 46 is fixedly disposed on one side plate 39 between the rail 28 and the guide shaft 29, and as shown in FIG. It is pivotally connected to the lower end of an arm 47 fixed to one side of the arm 46. Therefore, when the ram shaft 46a moves backward due to the operation of the air cylinder 46, the arm 47
As the support shaft 43 is rotated at the same time, the movable clamping plate 44 is tilted away from the fixed clamping plate 42 .

As shown in FIG. 2, tension springs 48 are installed between both sides of the fixing plate 30 of the outer clamping part 35 and both side plates 39 of the inner clamping part 45, respectively. A pressing plate 49 is projectingly provided on the sliding body 41 of the inner clamping portion 45, and the pressing plate 49 is pressed by the tip head of the ram shaft 50 of a separately arranged air cylinder (not shown). Then, the roller 40 moves along the rail 28 and the sliding body 41 moves along the guide shaft 29, respectively. Then, the inner clamping part 45 resists the urging force of the tension spring 48 and the outer clamping part 35
, and the two clamping portions 35, 45 are separated from each other. Conversely, when the pressing force on the pressing plate 49 is released, the inner clamping part 45 moves in the direction toward the outer clamping part 35 by the biasing force of the tension spring 48.

A transmission mechanism 51 for intermittently rotating the rotating shaft 25 by 180 degrees is provided at the lower part of the rotating shaft 25 that rotatably supports both of the clamping mechanisms 26.
As shown in FIG. 5, the transmission mechanism 51 includes a motor 52, a sprocket 53, a chain 54, a sprocket 55, which sequentially transmits the rotation of the motor 52.
Shaft 56, gears 57, 58, shaft 59,
Cam 60, lever 61, rod 62, shaft 6
3. It is composed of gears 64 and 65, respectively.

Structure of Binding Device C The binding device of this example, which is schematically shown in FIGS. 11 and 12, has the following functions: a binding action for the opening of a packaging bag in which goods are already wrapped, and an application sealing action for the binding tape-like material. An example will be given of an automatic type that is configured to be able to perform both. That is, the first and second carriages 68 and 69 carry the rollers 70 on the rails 67 of the machine frame 66 below the standby position of the pair of clamping parts 35 and 45 that can close and transfer the bag opening. The first and second swinging rods 7 of a four-bar link type are connected to an operating rod 71 which is operated from an appropriate operating means (not shown) at appropriate times.
By the synchronized rocking of the rollers 2 and 73, the rollers move back and forth along the rail 67 via the connecting rods 74 and 75.

On each of the carriages 68 and 69, an embossing device 76 for the bag opening and an adhesive sealing device 77 are installed facing each other. First, in the sealing device 76, a pair of upper and lower pushing plates 80 are cantilever-connected to a shaft 79 of a support plate 78 of a traveling table 68, and the sealing device 7, which will be described later,
7 in parallel. This pushing plate 80 is always held at a predetermined position using a spring 81 and a stopper 82, but it can be tilted in a rotating manner during the tape binding process, and its free end has a substantially V-shaped shape. Socket 8 for crest
3 is formed. The inner edge of this receptacle 83 is suitably arcuate so that the bag opening can be smoothly inserted and guided, and there is also a tapered inner end to prevent the bag opening from slipping out. A clamping groove 84 is formed respectively. Both sockets 83 and grooves 84 are also collectively referred to as a crest opening _M1 for convenience. 85 is a guide rod for the bag opening extending horizontally from the front end of the lower pushing plate 80.

On the other hand, the adhesive sealer 77 has an embossing function and a tape bundling function corresponding to the above-mentioned embosser 76, and it can be handled as a single unit by arranging each necessary component on the board 86. It is constructed in the form of a cassette and is removably installed on the movable plate 87 of the second carriage 69. That is, Figure 13~
As shown in detail in FIG. 15, locking means 89,
A board 86 having a series of V-shaped sockets 92, grooves 93, and an extraction port 94 for the tied bag opening is bolted onto a movable body 91 that is positioned and held at 90. A pair of guide plates 95 and 96 forming an embossed guide are arranged on the base plate 86 to face each other along the socket 92. As a result, the socket 92 and the opening between the guide plates 95 and 96 form a V-shaped inset _M2 for the bag opening, and the groove 93 and the opposing inner edges of the guide plates 95 and 96 form a V-shaped opening M2 for the bag opening. A passage Q for the bag opening is formed by this. However, it is assumed that the passages Q are arranged at uniform intervals that can correspond to the thickness of the bag opening of the largest size to be used.

Regarding the guide plates 95 and 96, one is fixed, and the other is movable using a pin 98a connected to the support piece 97 and a spring 98 connected to the base plate 86. A guide roller 99 and a bonding roller 100, which can freely rotate smoothly as the tape is drawn out, are arranged using a support plate 101 and a shaft 102, respectively. Both outer guide rollers 99 are
The tapes are smoothly fed out from the tape bodies T ₁ and T ₂ set on both sides of the substrate 86, and the inner bonding rollers 100 guide the tapes on each side while being elastic with each other. The outer circumferential surfaces of the movable guide plates 96 and 96 are pushed into the passage Q and are in contact with each other.

Reference numeral 103 designates a rotating plate pivotally attached to the base plate 86, which connects the cam portion 104 to the tied bag opening with the spring 105.
Therefore, it is always held in a state facing outside the outlet end of the passage Q. A knife 106 attached to the rotary plate 103 is designed to cut the tape by thrusting its cutting edge toward the exit end of the passage Q when the rotary plate 103 rotates.

As for the tape bodies T ₁ and T ₂ on each side, as an example, tapes t ₁ and t ₂ with adhesive on one side are wound in series on a paper tube, and are removably attached to the substrate 86. The paper tube is set on the rotated reel 107 in a state where it is prevented from rotating by being engaged with a plate spring-like engagement piece 108. Then, prior to tape binding, the tapes t ₁ and t ₂ are pulled out and stretched between the outer peripheries of both rollers 98 and 100 on the relevant side, and the bonding rollers 100 and the movable guide plate 96 are separated from each other and placed in an open state. The starting end of the tape is sandwiched between the outer peripheries of both bonding rollers 100 and set in a bonded state. In addition, the above-mentioned embossing device 76 and adhesive sealing device 77 are also included.
The base plate 86 and the support plate 101 are both positioned at an inner height with respect to the upper and lower push-in plates 80, and are inserted into each other in a plane by an appropriate amount.

Function of the expansion bag-making device A The expansion bag-making device A configured as described above sets and holds the closed cylindrical film, and pitch-feeds the film during the vertical movement based on the wrapping operation of the packaging machine. Expand as you send.

First, when setting a film to the apparatus, it can be done by inserting the expander 19, which has been removed from the movable body 6, through the film alone. That is, the supporting leg plate 20 is inserted from the closed end of the film F, and while being inserted as it is, the expander 19 is inserted until the entire expander 19 is recessed into the film. As a result, the opening end f of the film is moved in the width direction by both guide pieces 21b of the first guide tool 21 and by the four guide flexible pieces 22 of the second guide tool 22, as shown in FIGS. 8 and 10.
b, respectively, in the opening direction, and are opened in a half-open state with an overall horizontal rectangular (boat shape) shape. Regarding such mouth end f, each of the above flexible pieces 22b
The opening is stretched outward without any force due to the biasing force of the opening, so that it is stretched and held in a clean and stable opening shape without wrinkles or the like.

Thereafter, by hanging and holding the above-mentioned expander 19 across both guide rods 12 and both support rods 11 on the movable body 6 side, the film F is attached to the supporting leg plate 20 at each portion as shown in FIG. and the rubber tubes 12a of both guide rods 12, and between the support leg plate 20 and the rollers 11a of both support rods 11 so that they can be pulled out, and set in a state that prevents them from being pulled out with respect to the expander 19. It is held at the pre-dispensing position in accordance with the present invention, which is stopped and waiting at the pre-operation lowering end position. (1st
(see figure).

The apparatus of this embodiment, which holds the film in place as described above, feeds and unfolds the film by raising and lowering the film as the machine is operated. For convenience, one operation will be explained step by step based on FIG.

First, the entire expander 19 together with the movable body 6 is moved upward via the lifting arm 1 toward the clamping mechanism 26 on one side of the clamp device B, which is in the open (pre-clamp) state at the upper standby position. (16th
(See Figure A) Accordingly, the cylindrical film F is fed out from the film body RF in a closed state. In this process, the film is fed out in a folded state between a number of rollers (or rollers) including those for tension adjustment (to prevent sagging), and due to the resistance at that time, it exhibits a fairly strong elongation state. Although it receives a downward tensile force (anti-feeding direction), the mouth end f part is
Since it is clamped between both concave grooves 23 of the supporting leg plate 20 and the rubber tubes 12a of both guide rods 12 in a manner that prevents it from coming off, situations such as slipping from the expander or being pulled out are eliminated. and is maintained properly at all times.

The opening end f of the film F that has been fed to the raised position is attached to each clamping portion 35, 4 as shown in FIG. 16A.
After the upper edge portion between the guide flexible pieces 22b on each side of the second guide tool 22 is clamped by the closing operation of step 5, the expander 19 is inserted into the film F and lowered as the movable body 6 returns. be done. As a result, one pitch of film F is fed across both clamping portions 35 and 45 and the expander 19 that has reached its lower end, and this film F is fed to the first and second guide tools 21 and 22. As a result of the expansion operation, the cylindrical film is expanded over its entire length into a half-open shape.
(See FIG. 16A) During the descending process of the expander 19, each part of the film F, that is, the sliding contact part with each guide piece 21b and the guide flexible piece 22b, and the both concave grooves 23 of the supporting leg plate 20. The clamping portions between the rubber cylinder 12a of the guide rod 12 and both recesses 24 of the support leg plate 20 and the rollers 11a of both support rods are stretched as appropriate to eliminate wrinkles, etc., and are inserted smoothly and relatively upwardly. As a result, the expander 19 is subjected to considerably strong resistance as the film is expanded and stretched. However, both concave grooves 23 of the support leg plate 20 and the rubber tubes 12a of both guide rods 12 are engaged in a state in which the film F can be inserted, and the rubber tubes 12a rotate only in the direction of arrow P in FIG. As a result, the expander 19 is prevented from floating and separated due to relative upward fluctuations with respect to the downward movement of the movable body 6 or stoppage of the downward movement within the film F, and is always kept in a stable position from normal. , the film is quickly inserted downward while being held in this state, and the film is expanded and stretched. Thereafter, in each operation of the entire device, the expander 19 for the movable body 6 performs its original expanding and stretching function (action) for the film that has been pitch-fed as described above.
can be played similarly. As a result, the film F is uniformly expanded into a stable cylindrical shape, since the film F, including each of the above-mentioned portions, is inserted and fed smoothly as a whole.

As described above, each pitch of the cylindrical film F that has been expanded and expanded by the device of this embodiment is then moved to the expander 1 by the operation of the shutter device 2.
Each guide flexible body 22 of the second guide tool 22 at 9
With the upper end part b being clamped and closed, the bag is sealed by the sealing device 4 and cut by the cutter 3, forming a cylindrical bag _F1 with only the upper end open, and set in the expander 19 at the lower end position. The next film held is separated to the F side.
(See FIG. 16C) During this operating process, the mouth end f of the upper end of the film F held in the expander 19 is inserted into (pushed in) the shutter device 2 as shown in FIG. 16C. During operation,
Although each guide flexible piece 22b of the second guide 22 is elastically bent inward and deformed into a tapered conical shape along the same piece 22b, after the shutter device 2 is deactivated (retracted), In response to the outward biasing force of each of the flexible pieces 22b, the cutter 3 is quickly expanded from the cutting edge position and held at the mouth end f of the original predetermined opening shape.

Effect of clamping device B After that, the above-mentioned cylindrical bag _F1 is clamped by clamping device B.
By rotating the rotation shaft 25 by 180 degrees,
It is transferred to the binding device C side. Next, when the inner and outer clamping parts 35, 45 are separated by the protruding operation of the ram shaft 50, the cylindrical bag _F1 is opened as shown in FIG. 16E.
The mouth end _f1 is opened in a large rectangular shape. After the article W is put into the opened bag _F2 , the bag is loaded by the approach movement of both clamping parts 35 and 45.
The opening of the bag F ₂ is clamped and closed, and then the opening f ₂ of the bag F ₂ is tied by a binding device C, which will be described next.

Function of the bundling device C In the bundling device of this example configured as described above,
Binding can be accomplished by performing a series of operations of embossing the bag opening and then applying tape.The binding operation for one bag will be explained with reference to FIG. 17. First of all, regarding the emblem, both clamping parts 35, 4
The embossing device 76 and the adhesive sealing device 77, which are waiting on both sides of the mouth of the bag _F2 which is held in a closed state by the slider 5, are moved by the forward movement of the swinging rods 72 and 73.
8 and 69 along the rail 67, each side edge of the bag opening part _f2 is accepted and guided by each of the openings _M1 and _M2 , and the same amount is moved toward the center of the bag. Push in one by one, and then both clamping parts 3
The bag opening part f ₂ which is released from 5 and 45 at the appropriate time is inserted into the insertion openings M ₁ and M ₂ which intersect with each other as shown in Figure A. Then, from around the time when both containers 76 and 77 intersect with each other, the bags are further narrowed and bundled while inserting the bag opening f ₂ between the openings M ₁ and M ₂ . Thereafter, as the devices 76 and 77 continue to move toward each other, the next tape application is performed successively.

That is, both vessels 76, 7 crossed as described above.
Bag opening part f ₂ bundled between crest opening M ₁ and M ₂ of 7
is the passage Q in the adhesive sealer 77 as shown in Figure B.
It faces the inlet and is located within the V-shaped opening formed by the tapes t ₁ and t ₂ on each side. Then, with the subsequent advancement of both containers 76 and 77, the bag opening part _f2 is moved to the emblem opening.
While being held by _M1 , the bonding roller 100 of the movable guide plate 96 is pushed open (retracted) against the spring 98 while moving through the passage Q. In this process, the bag opening f ₂
While pushing out both tapes t ₁ and t ₂ to which the starting ends are pasted, both pasting rollers 100 are pressed as shown in Figures C and C'.
The tapes t ₁ and t ₂ are attached to both sides of the outer periphery by being elastically sandwiched between the tapes and guided by rollers 99 and 100 on each side.

When the bag opening _f2 is pushed out from the exit of the passage Q into the extraction port 94, the laminating roller 100 is elastically returned together with the movable guide plate 96 as shown in FIG. Parts of the tapes t ₁ and t ₂ are stuck between the bonding rollers 100 while being stuck.
Thereafter, while the above-mentioned tied bag opening part _f3 is being pushed out by both pushing plates 80 of the stamping device 76, by directly pushing the cam part 104 of the rotary plate 103 as shown in Fig. The knife 106 rotates counterclockwise in the figure together with the rotary plate 103, cuts the center of the bonded part of both tapes with the blade, and connects the binding tape side of the bag opening _f3 to the next binding. and the tape side.

In such cutting, the bag opening _f3 relative to the cam part 104 moves from the passage Q as the rotating plate 103 rotates as shown in Figure E, while the pushing plate 80 itself moves in the same direction. By quickly tilting clockwise in the figure against the spring 81 while being pressed by the bag opening f ₃ , the bag opening f ₃ and both of the above-mentioned laminating rollers 100
Since the bonded portion of both tapes extending to the exit end of the tape is held properly in a straight line without sagging, the bonded portion can be cut well and cleanly. Incidentally, the tilting of the pushing plate 80 also functions to push out and guide the bag opening part _f3 toward the discharge side.

Then, the packaging bag _F3 is lowered by appropriate means or its own weight at the timing when the tape cutting is finished, thereby opening the above-mentioned embroidery opening _M1 and the cam part 1.
The tied bag opening part _f3 held between 04 and 04 is
It is quickly extracted from the extraction port 94, and in connection with this, the rotating plate 103 and the pushing plate 80 are returned to their original positions by the corresponding springs 105 and 81, respectively. After that, as the swinging rods 72, 73 move back, each device 76, 7
7 is retracted back along the rail 67, and the tape binding can be performed in the same manner as described above. As a result, the bag opening can be tied into a ribbon by applying two tapes of the necessary length to the opening from both sides, as shown in the figure.

In this way, the device in this example can perform a series of markings prior to pasting and binding the bag opening with tape, so it is possible to perform automatic binding that can sufficiently accurately follow the operation of a bag filling and packaging machine, for example. This can be effectively implemented as a device and can greatly improve workability.

Moreover, in the above-mentioned tape binding, during the embroidery process, the guide rod 85 of the embroidery device 76 continues to function as a regulating wall for the bag opening to prevent deviation or fluctuation of the bag opening, so that proper embroidery is achieved. It can be done. In addition, during the tape attachment process, the bag opening f ₂
When moving through the passage Q, as shown in Figure C', the two push-in plates 80 are properly clamped and held from the inner ends of the sockets 83 to the clamping grooves 84, without being pulled out from the clamping opening _M1. The bonding roller 100 of the movable guide plate 96 can be pushed open and moved, and the tape can be properly bonded by cooperation with the bonding roller 100.

In this example device which can perform tape binding as described above, when both seals become empty, the next new tape bodies T ₁ and T ₂ are set on the relevant reel 107, and the starting ends of each tape are tied together. What is necessary is just to mutually hold and stick with the bonding roller 100. For such a tape set, the locking means 89 and 90 are released, and the adhesive sealer 77 is rotated with respect to the carriage 69 together with the movable body 91 to be exposed to the outside through the window 109 of the machine frame 66, so that it can be set quickly and safely. It can be done. (1st
(See imaginary lines in Figure 1) After that, the bag is carried out on the shooter 5 as a packaging bag F ₃ with the opening of both clamping parts 35 and 45. on the other hand,
After the packaging bag F ₃ has been opened, the clamping parts 35 and 45 are repositioned to the expansion bag making device A side by rotating the rotation shaft 25 of the clamping device B by 180 degrees again, and the same expansion bag making device A state is reached in which the cylindrical film F, which is already waiting in the apparatus A, can be clamped.

Further, while the cylindrical bag F ₁ clamped on both clamping parts 35 and 45 is tied by the binding device C as described above, the other clamping part 3
5, 45 clamps another cylindrical bag _F1 expanded by the expansion bag making device A, and the rotating shaft 2
Following the 180 degree rotation in step 5, the cylindrical bag _F1 is supplied to the binding device C.

Effects of the Invention As described in detail above, in this invention, while the one clamping mechanism 26 of the clamp device B and the expansion bag making device A cooperate to perform the expansion action of the film F, the clamp device B The other clamping mechanism 26 and binding device C
They work together to bind the cylindrical bag _F1 , so
This has the effect of shortening the packaging work performed by each device.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an outline of the packaging machine according to this proposal, Fig. 2 is a diagram showing a clamping device, Fig. 3 is a cross-sectional view taken along the line X ₁ - _X 2 of Fig. X ₂ −X ₂
5 is a schematic diagram showing the 180 degree intermittent rotation transmission mechanism in the clamp device, FIG. 6 is a perspective view showing the movable body in the expansion bag making device, and FIG. 7 is a perspective view showing the expander. , Figure 8 is an assembly diagram of the movable body and expander in the expansion bag making device, and Figure 9 is an assembly diagram of the expander.
Y ₁ - _{Y 1} sectional view in the figure, Figure 10 is Y ₂ - _{Y 2} in Figure 8
A sectional view, FIG. 11 is a schematic front view of the binding device, and FIG.
Figure 2 is a schematic plan view, Figure 13 is a partially cutaway plan view mainly showing the adhesive sealer, Figure 14 is a Z-Z sectional view of Figure 13, and Figure 15 is a diagram of the adhesive sealer. FIGS. 16A to 16E are perspective views showing the main parts, and FIGS. FIG. 6 is an explanatory diagram illustrating step-by-step the tape binding process for the bag opening of each binding device. A... Expansion bag making device, B... Clamp device, C
... Binding device, W... Goods, F... Film,
t ₁ , t ₂ ... tape, 25 ... rotating shaft, 26 ... clamping mechanism, 35, 45 ... clamping section.

Claims (1)

[Scope of Claim for Utility Model Registration] In the bag opening clamping device B installed between the expanding bag making device A and the bag opening binding device C, on both sides of the rotating shaft 25 that rotates intermittently by 180 degrees. Support members 27, 28, 29, 30, 32, 3 provided
3 includes a clamping part 35 that clamps one side of the opening of the bag.
The supporting members 27, 28, 29, 30 are provided with movable mechanisms 36, 37 that support both the clamping plates 31, 34 so as to be able to open and close each other, and open and close the clamping plates 31, 34. 3
A moving member 3 supported movably with respect to 2 and 33
8, 39, 40, 41, 43, both clamping plates 42, 44 of the clamping part 45 clamp the other side of the bag opening.
A movable mechanism 46 that supports the two clamping plates 42 and 44 so as to be openable and closable, and that opens and closes the clamping plates 42 and 44.
47, and the moving members 38, 39, 4
0, 41, 43 are interlocked with movable mechanisms 48, 49, 50 for moving the clamping parts 35, 45 toward and away from each other.