JPH0440251B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention reduces the size of industrial cotton such as rock wool, asbestos, and glass wool, as well as noble packaging items such as bedclothes such as futons, and packs them into a bag. The present invention relates to a manufacturing device for a package that seals a bag.

BACKGROUND ART Since the sealed package obtained by such a manufacturing apparatus has a low volume, it can be stored and transported by stacking economically.

By the way, when a sealed package is obtained by closing the opening of an open package formed by inserting a compressed article into a bag while deaerating the package, the compressed article is inserted into the bag through the opening. The suction nozzle is activated to perform suction and deaeration. In other words, conventionally,
For example, as seen in Japanese Patent Application Laid-Open No. 57-37527,
A suction hose is inserted between the films in which the object to be packaged is inserted, and the upper and lower heating plates are moved closer together, removing the insertion part of the suction hose, to seal between the films, and then the press form is lowered. After the inside of the packaged item is deaerated by the pressing action of the compressor and deaerated through the suction hose, the suction hose is pulled out and, at the same time, its trace is sealed with a hot plate.

Problems to be Solved by the Invention According to the above-mentioned conventional type, the suction hose has a nozzle opening at the tip, and therefore, the amount of insertion, or in other words, the position of the nozzle, relative to the front end surface of the packaged object is uneven. The position of the mouth becomes important. In other words, when the nozzle opening is spaced apart from the front end surface, the suction force acts strongly on the opening edge of the bag, draws the opening edge toward the nozzle opening, and closes the nozzle opening. As a result, good suction and deaeration cannot be performed. Furthermore, when the nozzle port is pressed against the front end surface, the front end surface portion, which has become highly dense due to the pressure contact, blocks the nozzle port, making it impossible to perform suction and degassing effectively.

An object of the present invention is to propose a manufacturing apparatus for a sealed package that can always perform good suction and degassing regardless of changes in the distance between the nozzle opening and the front end surface.

Means for Solving the Problems In order to achieve the above-mentioned object, the sealed package manufacturing apparatus of the present invention applies a process to an open package formed by inserting a compressed article into a bag while degassing the package. The apparatus for producing a sealed package that closes the opening includes a suction nozzle that can be inserted into the bag through the opening, and a sealing device that closes the opening. It has a flat plate shape with a suction path formed therein, and has a long nozzle opening in the width direction of the bag opening at the tip in the entry direction, and this nozzle opening has a
A circular abutment member is provided that protrudes forward from the nozzle end in a semicircular shape and has suction passages formed at appropriate intervals in the width direction of the opening.

According to the present invention having such a configuration, when the nozzle opening of the suction nozzle inserted into the bag is separated from the front end surface of the object to be packaged, the edge of the opening that is about to be drawn into the nozzle opening side is pressed against the abutting member. Further retraction is prevented by the protruding portion of the nozzle, thereby preventing the nozzle port from being blocked and allowing desired suction and degassing to be performed through the suction path. Furthermore, when the nozzle port comes into pressure contact with the front end surface, the front end surface is pushed in by the protrusion of the abutting member, so the suction path is not blocked, and the desired suction and degassing can be performed through this suction path.

Embodiment An embodiment of the present invention will be described below based on the drawings. In FIGS. 1 to 3, 1 is a vertical pressing type deaerator, which has four vertically open side walls 3 erected from a pedestal 2, and a bottom body 4 fixed to the lower ends of the four side walls 3. , a top plate 5 fixed to the upper end, a press plate 6 that can be raised and lowered within the four side walls 3, and this press plate 6.
a cylinder device 7 attached to the top plate 5 side to raise and lower the pressure plate 6, a guide cylinder 9 attached to the top plate 5 to guide the rod 8 erected from the top surface of the press plate 6, and the four side walls. 3, a suction duct 11 that connects these suction ports 10 from the outside, an inlet 13 for the article to be packaged 12 formed in the rear wall of the four side walls 3, and Mouth 1
3, a swinging side wall 14 that opens and closes the swinging side wall 14, a cylinder device 15 that swings the swinging side wall 14, and a charging hopper 16 provided at the upper outside of the charging port 13;
An extruded body passage port 17 formed on one side of the lower part of the four side wall body 3 and a take-out port 18 formed on the other side of the lower part.
It is comprised of a shutter 19 that can be raised and lowered to open and close the outlet 18 from the outside, and a cylinder device 20 that raises and lowers the shutter 19.

Reference numeral 21 denotes a packaged object extrusion device disposed on one side of the lower part of the press type deaerator 1, which includes an extrusion body 22 that can pass through the extrusion body passage port 17, and a push-pull device with this extrusion body 22 attached to the tip. It consists of a rod 23, a guide cylinder 24 of this push-pull rod 23, and a push-pull drive device 25 that is interlocked with the push-pull rod 23. This push-pull drive device 25 is composed of a motor, a chain, etc. 22 is moved back and forth.

Reference numeral 26 denotes a horizontally oriented square cylindrical guide body, which is disposed so that its front end faces the outlet 18 . In front of this guide body 26, a raw material 27 which is made into a roll by crushing a cylindrical material is placed on a pedestal 28.
The original fabric 27 is pulled out by a pull-out device 29 in the form of a pair of rolls, and then reaches a slack removing device 30.

The slack removing device 30 is attached to a framework body 31, and this framework body 31 is provided with a core 32 that spreads the original fabric 27 and is located within the original fabric 27. As shown in FIGS. 4 and 5, the core 32 includes a frame body made up of a combination of a pair of left and right side frames 33, a front frame 34, and a rear frame 35, and a front part from the intermediate side surfaces of both side frames 33. A front guide rod 36 extends to guide the flat original fabric 27, and a swinging rod 3 is attached to the rear end of both side frames 33 via a vertical shaft 37 so as to be swingable from side to side.
8, a spring 39 that urges these swinging rods 38 so that their rear ends are separated from each other, and a rear end that is attached to the rear ends of the swinging rods 38 and that spreads the original fabric 27 to a predetermined width and thickness. Guide body 40 and front frame 34
A front upper rotation shaft 41 and a front lower rotation shaft 42 installed between the both side frames 33 in front of the
A pair of left and right rollers 4 are attached to these rotating shafts 41 and 42 with different phases in the left and right direction.
3, 44, a rear upper rotating shaft 45 and a rear lower rotating shaft 46 installed between the both side frames 33 slightly in front of the rear frame 35, and left and right rotating shafts installed on these rotating shafts 45, 46 with different phases in the left and right direction. A pair of rollers 47, 48, an annular protrusion 49 formed in the middle of these rollers 47, 48,
50, the rear guide body 400 is formed in a U-shape when viewed from the side with the rear open, and is made of a plate spring material so that its rear ends can be elastically deformed so as to approach each other.

Further, the frame body 31 is provided with a positioning device 51 for the core 32. That is, a roller 52 that contacts the front upper roller 43 from above, a roller 53 that contacts the front lower roller 44 from below,
Roller 5 contacts rear upper roller 47 from above
4 and a roller 55 that contacts the rear lower roller 48 from below are rotatably attached to the frame body 31 side, and these rollers 52 to 55 are in contact with the original fabric 2.
This will be done via 7. here roller 5
4 and 55 are formed with annular grooves 56 and 57 into which the annular protrusions 49 and 50 can fit, as shown in FIG.

Slightly forward from the front end of the core 32, the raw fabric 27
A seal-and-cut device 59 is provided for manufacturing the bag body 58 from the bag body 58.

As shown in FIGS. 1, 2, and 7 to 9, a bag supply device that fits the bag 58 onto the guide body 26 between the framework body 31 and the four side walls 3. 60 are provided. That is, on the front side, a support frame 61 in the left and right direction is arranged between the frame body 31 and the four side walls 3, and a plurality of rollers 64, 6 are mounted on rails 62, 63 attached to the upper and lower surfaces of this support frame 61.
A movable body 66 supported via 5 is provided.
This movable body 66 has a C-shape, and is disposed such that its vertical plate portion is located on the rear side of the support frame 61, and is capable of reciprocating movement in the length direction of the support frame 61. The reciprocating movement is achieved by winding a chain 69 between a driven wheel body 67 attached near the four side walls 3 and a driving wheel body 68 attached to the frame body 31, and connecting one part of the chain 69 to a connecting member 70. This is possible by connecting the drive wheel body 68 to the movable body 66 and rotating the drive wheel body 68 in forward and reverse directions by the drive device 71. A pair of upper and lower support shafts 72 and 73 are connected to the rear from the rear surface of the movable body 66, and these support shafts 72 and 73
Rocking plates 74 and 75 that can swing up and down are attached to. The swinging of the swinging plates 74 and 75 is performed by moving the swinging plates 74 and 75 to cam rails 76 and 77 attached to the support frame 61 side.
This is made possible by the action of cam rollers 78 and 79 attached to 75. Here cam rail 7
6 and 77 tilt and swing the swing plates 74 and 75 so that when the movable body 66 comes closest to the frame body 31, the tips of the movable body 66 come into contact with each other as shown in the imaginary line in FIG.
As the movable body 66 moves away from the frame body 31, it is gradually swung open, and at the intermediate position, both the oscillating plates 74, 75 are opened as shown by the dotted line in FIG.
are in a parallel state, and are designed so that they can be moved close to the four side walls 3 in this state. A pair of right and left clamping plates 80, 81 are swingably attached to the outer ends of the swinging plates 74, 75, respectively, and by operating these clamping plates 80, 81 with cylinder devices 82, 83, The opening edge 58a of the bag 58 can be held between the outer surfaces of the swing plates 74 and 75. Note that bass weights 84, 85 and balance springs 86, 87 are provided on the swing plates 74, 75 side.

As shown in FIGS. 1 and 2, an open package 8 is provided between the guide body 26 and the seal and cut device 59.
Eight support devices 89 are provided. This support device 89
is composed of a fixed base 90, a slide base 91 that can move toward and away from the guide body 26 on the upper surface of the fixed base 90, and a cylinder device 92 that moves the slide base 91 toward and away from the guide body 26.

A guide plate 93 is provided on the rear side of the support device 89, and a belt conveyor device 94 is provided on the rear side. Here, the conveyance direction of the belt conveyor device 94 is set to be the same as the extrusion direction of the packaged object extrusion device 21. Note that an idling roller conveyor device 9 is connected to the end of the belt conveyor device 94.
5 are arranged. 96 is a feeder device for transversely feeding the open package 88 on the slide table 91 and transferring it onto the belt conveyor device 94; a multi-stage fork body 97; a cylinder device 98 for moving the multi-stage fork body 97 in and out; It is composed of a locking plate 99 attached to the tip of the multi-stage fork body 97 and the like. On the side of the belt conveyor device 94, there is a stopper 10 for receiving the opened package 88 that has been transported laterally.
0 is set.

As shown in FIG. 2 and FIG. 10 to FIG. 12, an opening closing device 101 is located opposite the starting end of the belt conveyor device 94 and closes the opening of the opening package 88 while deaerating the opening. Arranged.
This opening/closing device 101 consists of a suction deaerator 102 and a sealing device 103. That is, the suction deaerator 102 includes a pair of left and right upper guide rods 105 that are supported in the longitudinal direction with respect to the machine frame 104;
An upper movable base 106 that can move forward and backward guided by these upper guide rods 105, and this upper movable base 1.
06, a pair of left and right suction nozzles 108 attached to the upper movable base 106, a suction hose 109 connected to the base ends of these suction nozzles 108, and a cylinder device 107 that moves the machine frame 104 forward and backward. A pair of supported left and right lower guide rods 110, a lower movable base 111 that can move forward and backward guided by these lower guide rods 110, and a lower movable base 111 that is attached to both sides of the lower movable base 111 via vertical pins 112 so as to be swingable from side to side. a pair of levers 113;
A cylinder device 114 is installed between the proximal ends of the levers 113 in order to swing the distal ends of the levers 113 toward and away from each other;
A mounting member 116 attached to the upper surface side of the mounting member 11 , a front locking body 117 attached to the front and rear ends of the mounting member 116 so that their positions can be adjusted, and a rear locking body 1
It consists of 18. Here, both levers 113 are located outside the suction nozzle 108, and lever 1
13 and the suction nozzle 108 are on the same level in the vertical direction. Further, the distance between the opposite ends of the locking bodies 117 and 118 facing the operating member 115 is set as desired, so that when the upper movable base 106 is moved forward, the upper movable base 106 moves forward in advance. , and the front stop 1 of the actuating member 115
17, the lower movable base 111 is moved forward integrally, and when the upper movable base 106 is moved backward, the upper movable base 106 moves backward first, and the rear part of the actuating member 115 is engaged. By being locked to the stopper 118, the lower movable base 111 is integrally retreated. The lever 113 has a flat plate shape with a reduced thickness, and the suction nozzle 1
In order to make the 08 thinner, the pipe is crushed into a flat plate shape with a suction path formed inside. Therefore, at the tip of the suction nozzle 108 in the direction of entry, there is a 13th
As shown in FIGS. 15 to 15, a long nozzle opening 119 is formed in the left-right direction (the width direction of the bag opening).
An elliptical coil (an example of an abutment member) 120 that protrudes forward in a semicircular shape from the nozzle end is fitted into the nozzle opening 119, and the gap between the coil 120 is used in the opening width direction. suction passages 121 are formed at appropriate intervals.

As shown in FIGS. 10 to 12, the sealing device 103 includes a pair of left and right outer guide rods 122 supported in the vertical direction with respect to the machine frame 104, and a movable platform that can be raised and lowered guided by these outer guide rods 122. An example of an upper elevating platform 123 and a cylinder device 1 for raising and lowering this upper elevating platform 123
24, a heat bar 125 attached to the lower surface of the upper lifting platform 123, and a pair of left and right inner guide rods 126 supported vertically with respect to the machine frame 104.
and a lower lifting platform 127, which is an example of a movable platform that can be raised and lowered by being guided by these inner guide rods 126.
, a cylinder device 128 for raising and lowering the lower lifting table 127, and a mat 129 attached to the upper surface of the lower lifting table 127 so as to face the heat bar 125 from below. The sealing device 103 configured in this manner has an opening clamping tool 130 that acts before sealing. This opening clamping tool 130 includes a sponge rubber body 131, which is an example of an elastic clamping member attached to the front side of the upper lifting platform 123 so as to be movable up and down, a spring 132 that biases the sponge rubber body 131 downward, and the A rubber body 133, which is an example of an elastic clamping member, is attached to the front side of the lower lifting platform 127 so as to face the sponge rubber body 131 from below. 125
The rubber body 133 is also positioned above the mat 129.

As shown in FIGS. 2 and 16, an opening device 134 for expanding the opening edge 58a of the bag 58 in the opening package 88 is provided in the sealing device 103. That is, the opening device 134 includes a support plate 135 attached to the machine frame 104 at the side of the opening and closing device 101, and a pair of upper and lower guide rods 136, 137 attached to the support plate 135 in the front and back direction.
, a movable table 138 that can be moved back and forth guided by these guide rods 136 and 137, and a drive device (cylinder device) 1 that moves this movable table 138.
39, and pins 140, 141 on the movable base 138.
A pair of upper and lower swing links 142,
143, suction tubes 146, 147 attached to the free ends of these swing links 142, 143 and crossing the front part of the opening/closing device 101, and these suction tubes 1
cam mechanisms 148 and 149 that move 46 and 147 toward and away from each other. This cam mechanism 14
8, 149 are cam bodies 150, 151 attached to the free ends of the swing links 142, 143, and a cam rail 152 attached to the support plate 135 to guide the opposing sides of these cam bodies 150, 151.
It consists of 153. The cam rails 152, 15
3 has its intermediate portion parallel to each other, and its front portions are curved to separate from each other, so that when both suction tubes 146 and 147 move forward, the suction tube 14
6,147 are arranged to be spaced apart from each other. 1
Reference numerals 44 and 145 indicate restraint link bars, and 154 indicates a balance weight. At the bottom of the upper suction pipe 146, there is a slit-shaped suction port 155 that extends almost the entire length.
is formed, and a groove 156 is fitted around the outer periphery. In addition, round hole-shaped suction ports 157 are formed in the lower suction pipe 147 at predetermined intervals. 15
8 indicates a suction hose.

The action will be explained below.

First, the press deaeration effect of the press type deaerator 1 will be explained based on FIGS. 1 to 3. Figures 1 and 3
As shown by the solid line in the figure, the swinging side wall 14 is opened with the press plate 6 raised, and the article to be packaged 12 is thrown into the four side walls 3 through the charging hopper 6 and the charging opening 13. At this time, the take-out port 18 is closed by the shutter 19, and the passage port 17 is closed by the extrusion body 22. Next, with the swing side wall 14 closed, the press plate 6 is lowered to compress the packaged object 12 between it and the bottom plate 4. At this time, a suction force is exerted by the suction duct 11 into the four side walls 3 through the suction port 10, thereby promoting degassing of the packaged object 12. As shown by the imaginary line in FIG. 3, the shutter 19 is opened with the object 12 to be packaged sufficiently reduced, and the extrusion device 21 is operated. As a result, the pushing body 22 moving forward pushes the object 12 to be packaged, and the object 12 to be packaged is pushed into the guide body 26 through the outlet 18 .

At this time, the bag 58 is already fitted onto the guide body. That is, the roll-shaped raw fabric 27 is pulled out by the operation of the pull-out device 29 and the tensile force of the bag supply device 60, and passes through the core 32. At that time, the original fabric 27 is
As shown in the figure, the core 32 is guided by the front guide rod 36 and gradually expanded in the vertical direction, and is finally expanded into a horizontally long rectangular shape by the rear guide body 40. At this time, the core 32 is positioned by the positioning device 51 so that it cannot move forward or backward, and the annular protrusion 4
Lateral displacement is also prevented by the fitted state of the annular grooves 56 and 57. In this way, the original fabric 27 is automatically expanded by the core 32 located within the original fabric 27. As shown in FIG. 7, the raw fabric 27 on which the bag body 58 was formed in the previous step has its front end slightly protruding forward from the core 32. In this state, as shown by the imaginary line, the movable body 6 is formed by swinging the swing plates 74 and 75 so that their tips are in contact with each other.
6 is advanced the most and its tip plunges into the raw fabric 27. Next, the clamping plates 80, 81 are moved to close by the cylinder devices 82, 83, and the clamping plates 80, 81 are closed.
The original fabric 27 is held between the swing plates 74 and 75. That is, as shown in FIG. 17, it is clamped at four locations as indicated by clamping points a. The movable body 66 is moved backward in this sandwiched state, and at that time, the cam rollers 78 and 79 are guided by the cam rails 76 and 77, so that the two swing plates 74 and 75 are swinged away from each other, thereby causing the second As shown in FIG. 18, the original fabric 27 is expanded and formed so that it can be fitted onto the guide body 26. The movable body 66 is stopped once when it reaches near the tip of the guide body 26, and is thus pulled out by a predetermined distance. In this state, the original fabric 27 is sealed and cut by the seal and cut device 59, and the bag supply device 6
The bag body 58 held by the 0 is molded. The sealing and cutting is performed near the rear guide body 40, and at this time, the rear guide body 40 is deformed in the vertical direction against its elastic force. However, after cutting, it opens due to elastic force, and the seventh
As shown in the figure, an opening is again formed at the tip of the original fabric 27. After forming the bag body 58, the movable body 66 moves again, and thereby the bag body 58 is fitted onto the guide body 26. The clamp is released after external fitting. In this state, as mentioned above, the packaged object 1
2 is extruded from the guide body 26. Therefore, the object to be packaged 12 is inserted into the bag 58, and the resulting open package 88 is placed on the slide table 91.

At this time, the slide table 91 has moved toward the guide body 26, and after supporting the open package 88, moves away from the guide body 26. As a result, the opening edge 58a of the bag body 58 is completely removed from the guide body 26. Next, the feeder device 96 is operated and the locking body 99 locks and moves, thereby opening the package 88.
is transferred horizontally and transferred onto a belt conveyor device 94 via a guide plate 93, and then transferred to a stopper 100.
It is positioned by coming into contact with the

At this time, the opening and expanding device 134 has its suction tubes 146 and 147 moving forward and separating from each other, as shown by the imaginary line in FIG. Opening edge 58a
Both suction tubes 146 are hanging down as shown in FIG.
147. Then both suction tubes 146,
147 is moved backward while exerting a suction action.
At this time, both the suction tubes 146 and 147 gradually move toward each other and then perform a horizontal movement, during which the opening edge 58a
Suction is applied to both sides to form an enlarged opening as shown in B. The upper suction pipe 146 requires a large suction force, so the opening edge 58a is the suction port 1.
There is a risk that it will be squeezed into 55, this is Ami 15
6.

The opening closing device 101 is operated with the opening edge 58a opened in this manner. That is, the operation of the cylinder device 107 first causes the suction nozzle 108 to
advances, and the front stop 1 of the actuating member 115
17 causes the lever 113 to move forward. As a result, the suction nozzle 108 and the lever 113 are connected to the open end 58 as shown in the imaginary line in FIG.
Push it into a. Next, with the suction expansion action by the expansion device 134 released, the cylinder device 1
14, the lever 113 is swung apart and the opening edge 58a is stretched flat without wrinkles, as shown in FIG. and sealing device 103
Both the cylinder devices 124 and 128 are operated in the first stage, and the sponge rubber bodies 131 approach each other.
and the rubber body 133 sandwich the opening edge 58a from above and below. At this time, the suction nozzle 108 and the lever 113 are also clamped, but the step formed at this time is absorbed by the elastic deformation of both the rubber bodies 131, 133, and the opening edge 58a is sealed. In this state, suction is applied, and the inside is evacuated via the suction nozzle 108. At that time, even if the nozzle port 119 is spaced apart from the end surface of the packaged object 12, the opening edge 58a to be sucked is not further sucked by the coil 120, that is, it is not inserted into the nozzle port 119. Since the suction path 121 is blocked and the suction path 121 is secured, the desired degassing is accomplished. Furthermore, even if the nozzle port 119 comes into strong contact with the end face, the coil 120 pushes into this end face, so the suction path 121 is not blocked, and the desired degassing is similarly accomplished.

After degassing, the cylinder device 107 is moved to contract. As a result, the suction nozzle 108 is first moved out (retracted), but since the lever 113 remains at that time, it is possible to prevent wrinkles from forming on the opening edge 58a due to friction at the time of removal. When the suction nozzle 108 is pulled out, the actuating member 115 is locked with the rear locking body 118, and the lever 113 is pulled out. The remains where the suction nozzle 115 and the lever 113 were pulled out are closed by the elastic restoring force of both the rubber bodies 131 and 133. Then, both cylinder devices 124 and 128 are operated in the second stage, so that the heat bar 125 and the mat 12 are activated.
9 seals the opening edge 58a, thereby obtaining a sealed package. At that time, both rubber bodies 13
1 and 133 is absorbed by the rubber body 131 retracting against the protruding biasing force of the spring 132. This sealed package is transferred to the belt conveyor device 9.
4 is carried out to the idle roller conveyor device 95 side.

21 and 22 show the ball 15 as a contact member.
Another example using 9 is shown, and FIG. 23,
FIG. 24 shows another embodiment using a cylindrical body 160.

Effects of the Invention According to the present invention having the above configuration, when the nozzle opening of the suction nozzle inserted into the bag body is separated from the front end surface of the packaged object, the opening edge that is about to be drawn into the nozzle opening side is attached to the contact member. Further retraction can be prevented by the protruding portion of the nozzle, thereby preventing the nozzle port from being blocked and allowing desired suction and degassing to be performed through the suction path. Furthermore, when the nozzle port comes into pressure contact with the front end surface, the protrusion of the abutment member pushes the front end surface, so the suction path is not blocked, and the desired suction and deaeration can be performed through this suction path. I can do it. As described above, according to the present invention, the stop position of the nozzle opening relative to the front end surface of the packaged object whose position is irregular is no longer important, and this requires the use of a special control device to control the plunge movement of the suction nozzle. It can be made into a simple structure that performs a simple exercise.

[Brief explanation of drawings]

1 to 20 show an embodiment of the present invention,
Fig. 1 is a partially cutaway front view of the whole, Fig. 2 is a plan view of the same, Fig. 3 is a longitudinal side view of the press-type deaerator, and Fig. 4 is a partially cutaway front view of the whole.
The figure is a partially cutaway front view of the core installation part, Figure 5 is a cross-sectional plan view of the same, Figure 6 is a longitudinal cross-sectional view showing the positioning state, Figure 7 is a side view of the bag supply device, and Figure 8 is a front view of the same, FIG. 9 is a plan view of the same, FIG. 10 is a side view of the opening and closing device, FIG. 11 is a front view of the same, FIG. 12 is a plan view of the same, and FIG. 13 is a side view of the tip of the suction nozzle. Figure 14 is the same plan view, Figure 15 is the same front view,
Figure 16 is a side view of the expansion device, Figures 17 and 18.
The figure is a schematic diagram showing the state of spreading the original fabric, Figure 19,
Fig. 20 is a schematic plan view explaining the action of suction degassing, Fig. 21 is a front view showing another embodiment of the abutting member, Fig. 22 is a side view of the same, and Fig. 23 is a further embodiment of the abutting member. FIG. 24 is a front view showing another embodiment, and FIG. 24 is a side view of the same. 12... Item to be packaged, 101... Opening closing device,
102... Suction deaerator, 103... Sealing device, 108... Suction nozzle, 119... Nozzle opening, 120... Coil (contact member), 121...
Suction path, 159...Ball (contact member), 160
...Cylindrical body (contact member).

Claims (1)

[Claims] 1 An apparatus for manufacturing a sealed package that closes the opening of an open package formed by inserting a compressed article into a bag while deaerating the package, and the device enters the bag through the opening. The suction nozzle has a flat plate shape with a suction path formed inside, and a nozzle elongated in the width direction of the bag opening at the tip in the entry direction. A sealed package characterized in that the nozzle opening is provided with circular abutting members that protrude forward in a semicircular shape from the nozzle end and form suction passages at appropriate intervals in the width direction of the opening. Body manufacturing equipment.