JP2021030509A - Air cushioning material manufacturing apparatus - Google Patents

Abstract

To facilitate an original setting for a tube material when starting up an apparatus and prevent occurrence of waste of the tube material.SOLUTION: In an air cushioning material manufacturing apparatus of this invention, a flat tube material 12 is used, the tube material including plural air filling cubicles 13 in a longitudinal direction and an air supply channel 15 at one end part in a direction orthogonal to the longitudinal direction, to cap a rod-like nozzle 41 that extends horizontally in the air supply channel 15. The air cushioning material manufacturing apparatus 11, then including: performing air supply and sealing while conveying the tube material 12 by conveying means; sealing the air filling cubicles 13; cutting open an edge on the air supply channel side of the tube material 12; and sending out an air cushioning material, comprises an introduction roller 52. The introduction roller 52 is located on the tip side of the nozzle 41 and facilitates introduction of a distal end of the air supply channel 15 of the tube material 12 to the nozzle 41. The apparatus also enables air filling into one of the air filling cubicles 13 located at a distal end of the tube material 12.SELECTED DRAWING: Figure 7

Description

The present invention relates to an air cushioning material manufacturing apparatus for manufacturing an air cushioning material having a plurality of air chambers by sealing while supplying air to a plurality of air filling chambers while transporting a flat tube material made of a thin synthetic resin. ..

As the above-mentioned air cushioning material manufacturing apparatus, there is one disclosed in Patent Document 1 below, which is configured to save space.

In this device, the unwinding portion for unwinding the tube material from the winding body in which the tube material is wound in a roll shape is composed of a rotation support member that can rotate around a vertical rotation axis. At the tip of the unwinding portion, an air supply portion that supplies air to the air filling chamber of the tube material and a heat fusion portion that seals the air filling chamber by heat fusion are provided. The air supply unit has an air nozzle that rises vertically from the base, and a guide member that is inserted into the tube material and guides the tube material is projected on the surface of the air nozzle on the side opposite to the transport direction. Further, a cutting blade is provided between the air nozzle and the guide member to cut open the lower end of the tube material to enable transportation.

That is, in the apparatus of Patent Document 1, the lower end of the tube material is cut open with a cutting blade while the guide member is inserted into the lower end of the tube material and conveyed, and then air is supplied from the air nozzle and the seal is sealed at the heat-sealed portion. Then, the manufactured air cushioning material is sequentially sent out.

In such a device, the initial set performed when the device is started after the winding body is inserted into the unwinding portion is performed as follows. That is, the tip of the tube material, which is the beginning of the winding body, is grasped and unwound, and first, the guide member is inserted into the lower end portion of the tube material. Subsequently, the tube material is further unwound, the lower end of the tube material is cut open with a cutting blade, and the tube material is sandwiched between the transport belts of the heat-sealing portion while further unwinding.

Since the initial set is made in this way, it takes a lot of time and effort. Further, since the air filling chamber at the tip of the unwound tube material is located in the heat-sealing portion on the transport direction side of the air nozzle, air is not filled after the device is started. Therefore, the tube material is wasted.

Therefore, as shown in FIG. 10, a rod-shaped nozzle 102 extending in the direction opposite to the transport direction and having a discharge port 101 on the upper surface is used, and a heat-sealing portion 103 is provided above the nozzle 102, and the nozzle 102 is provided. It is conceivable to use a device having a cutting blade 104 on the rising portion 102a of the base portion. The nozzle 102 and the transport means 105 that also serves as heat fusion are started at the same time by turning on the operation switch. In a device having such a configuration, if the nozzle 102 is inserted into the lower end portion of the tube material prior to the on operation of the operation switch so that the tube material is conveyed by the conveying means, the tube material is not wasted.

However, as shown in FIG. 11, unless the tip 111 of the tube material 110 is firmly brought into contact with the conveying means 105 before the operation switch is turned on, the tube material 110 is fanned by the start of air supply. Insertion of the nozzle 102 becomes difficult. Further, the tube material 110 once inserted into the nozzle 102 may come off.

Japanese Unexamined Patent Publication No. 2017-100411

It is a main object of the present invention that the initial setting of the tube material at the time of starting the apparatus can be easily performed and the waste of the tube material is eliminated.

As a means for that purpose, the air supply path is made horizontal by using a flat tube material having a plurality of air filling chambers in the longitudinal direction and an air supply path at one end in the direction orthogonal to the longitudinal direction. It is manufactured by covering an extending rod-shaped nozzle to supply and seal air while transporting the tube material by a transport means, sealing the air filling chamber, and cutting open the end of the tube material on the air supply path side. It is an air cushioning material manufacturing apparatus for feeding out the air cushioning material, and is provided with an introduction means for facilitating the introduction of the tip of the air supply path of the tube material into the nozzle.

In this configuration, when the tip of the tube material is brought close to the nozzle at the time of initial setting, the introduction means facilitates the introduction of the tube material into the nozzle, and the action of the transport means can be reliably exerted on the tube material.

According to the present invention, since the introduction means is provided, the initial setting of the tube material at the time of starting the apparatus can be easily performed, and the waste of the tube material can be eliminated.

The perspective view of the air cushioning material manufacturing apparatus. Sectional and side views of the tube material. Top view of the air cushioning material manufacturing equipment. Top view of the main part of the air cushioning material manufacturing equipment. Side view showing the schematic structure of the main part of the air cushioning material manufacturing apparatus Block Diagram. Side view of the working state. flowchart. A side view of a tube material according to another example. Explanatory drawing of the prior art. Explanatory drawing of the prior art.

An embodiment for carrying out the present invention will be described below with reference to the drawings.

FIG. 1 shows a perspective view of an air cushioning material manufacturing apparatus 11 (hereinafter, referred to as “apparatus”). This device 11 manufactures an air cushioning material by setting a flat tube material 12 wound in a roll shape in an upright posture in the axial direction of the roll, unwinding and transporting the flat tube material 12 while supplying and sealing air. Is.

As shown in the cross section of FIG. 2A, the tube material 12 has both end edges in the direction orthogonal to the longitudinal direction, that is, the upper end 12a and the lower end 12b are closed, and the side surface of the tube material 12 is shown in the unfolded state. As shown in (b), it has a plurality of air filling chambers 13 in the longitudinal direction. The air filling chamber 13 is formed by being sandwiched between a pair of vertical sealing portions 14 extending from the upper end 12a to the lower end 12b of the tube material 12. The vertical seal portion 14 is linear. An air supply path 15 is formed below the air filling chamber 13, that is, at the lower end, which is one end in a direction orthogonal to the longitudinal direction of the tube material 12. Separation portions 16 at appropriate intervals are formed between the air filling chambers 13, and separation perforations 17 are formed in the isolation portions 16 in a straight line from the upper end 12a to the lower end 12b.

FIG. 2B also shows the manufacturing process of the air cushioning material, and the right side of the drawing is the transport direction or the rear side of the manufacturing process (see the arrow). That is, the tube material 12 in an upright posture with the air supply path 15 facing downward is provided with air to the air filling chamber 13 and a seal (formation of a horizontal seal portion 18) for sealing the inflated air filling chamber 13. .. Subsequently, the lower end 12b, which is the end of the tube material 12 on the air supply path 15 side, is cut open.

The device 11 for manufacturing the air cushioning material in this way has a box-shaped housing 31 having a substantially rectangular parallelepiped shape. On the upper surface 31a of the housing 31, a holder portion 32 for holding the tube material 12, a guide portion 33 for guiding the drawn tube material 12, a processing portion 34 for processing for manufacturing, and a processing portion 34 are provided. An operation panel 35 for driving operation is provided.

The holder portion 32 has a vertically upward holding shaft 36. The holding shaft 36 does not have a drive source and is attached so as to be rotatable forward and backward. The portion of the holding shaft 36 protruding from the upper surface 31a of the housing 31 is fitted with a collar-shaped base 36a for receiving the tube material 12 wound in a roll shape and a core 12c of the tube material 12 in this order from the bottom. It has a joint portion 36b and a columnar columnar portion 36c extending upward from the fitting portion 36b.

A vertically extending ridge 36d is formed on the outer peripheral surface of the fitting portion 36b. By forming a groove (not shown) that fits into the ridge 36d only at the lower end of the core 12c of the tube material 12, it is possible to prevent an error in the mounting direction when the tube material 12 is attached.

The formation position of the holder portion 32 in the housing 31 is one corner portion of the upper surface 31a having a substantially rectangular shape in a plan view.

The guide portion 33 is for smoothly guiding the tube material 12 toward the processed portion 34, and has the guide material 37. The guide material 37 is formed in an arc shape in a plan view and a substantially triangular shape in a side view, and one end portion 37a, which is a low-height portion, is pivotally supported on the upper surface 31a of the housing 31. That is, the guide material 37 can rotate on the upper surface 31a of the housing 31 around the pivot portion 37b at one end. The pivot portion 37b of the guide material 37 is provided at substantially the center of the upper surface 31a of the housing 31, and when the curved guide material 37 is rotated in the bending direction, the tip portion 37c of the guide material 37 holds the holder portion 32. It comes into contact with the shaft 36 or the roll-shaped tube material 12.

As shown in FIG. 3, the restrictable claw 38 that can appear and disappear at the portion corresponding to the intermediate position between the pivot portion 37b and the tip portion 37c of the curved inner side surface 37d of the guide material 37 on the upper surface 31a of the housing 31. Is provided. A switch 39 for operating the regulation claw 38 protruding from the upper surface 31a of the housing 31 in a sinking direction is provided in the vicinity of the holder portion 32 on the upper surface 31a of the housing 31.

Further, a guide groove 40 for guiding the rotation of the guide material 37 is formed in a portion of the upper surface 31a of the housing 31 corresponding to the tip end portion 37c side of the guide material 37.

By having such a guide portion 33, the tube material 12 is pulled out toward the processed portion 34 along the curved outer surface 37e of the guide material 37, as shown by a virtual line in FIG.

As shown in FIG. 3, the processed portion 34 is formed on the diagonal corner side of the upper surface 31a of the housing 31 with respect to the holder portion 32, and the center of the processed portion 34, that is, the tube material 12 is conveyed. The transport path is set to extend from the vicinity of the pivot portion 37b of the guide material 37.

As shown in FIGS. 4 and 5, a rod-shaped nozzle 41 that is supported in a floating state from the upper surface 31a of the housing 31 and extends horizontally is provided on the transport path of the processing unit 34. The nozzle 41 is for sending air into the tube material 12. The nozzle 41 has a base portion 41a at an end on the transport direction side, and the tip thereof is directed to the side opposite to the transport direction. The base 41a rises from the upper surface 31a of the housing 31, and the blower 42 provided in the housing 31 is connected to the base 41a of the nozzle 41.

The nozzle 41 has a circular vertical cross section. The tip of the nozzle 41 is closed, and the tip has a tapered portion 41b that is narrower toward the tip. A discharge port 43 for discharging air from the blower 42 is formed on the upper surface of the nozzle 41 at a portion opposite to the transport direction from the intermediate position in the longitudinal direction. As shown in FIG. 4, the discharge port 43 has a circular shape in a plan view, and a plurality of discharge ports 43, specifically three discharge ports 43, are formed. In addition to these discharge ports 43, the nozzle 41 has an auxiliary discharge port 44 having a smaller discharge air volume than the discharge port 43. The sub-discharge port 44 has a long linear shape along the longitudinal direction of the nozzle 41, and the formation position of the sub-discharge port 44 is on the side opposite to the transport direction of the discharge port 43 and in the transport direction from the base of the tapered shape portion 41b. This is the side part.

On the side opposite to the transport direction of the base portion 41a of the nozzle 41, a cutting blade 45 that receives the transported tube material 12 and cuts the lower end 12b thereof is provided (see FIG. 5).

The processing unit 34 has a conveying means 51 in addition to the nozzle 41. The transport means 51 is provided along the nozzle 41, and in order from the side opposite to the transport direction of the nozzle 41, the introduction roller 52 as the introduction transport means, the transport seal roller 53 that also serves as transport and heat fusion, and the feed roller. Has 54.

The introduction transport means is a means for introducing the tip of the air supply path 15 of the tube material 12 into the nozzle 41 so as to be easily introduced into the nozzle 41 by sliding on the side surface of the nozzle 41 and rotating in the transport direction. A pair of introduction rollers 52 as introduction transfer means are provided with the nozzle 41 interposed therebetween, and have rotation axes in the vertical direction orthogonal to the longitudinal direction of the nozzle 41. While the nozzle 41 has a circular vertical cross section as described above, the outer peripheral surface of the introduction roller 52 is cylindrical. That is, the introduction roller 52 makes point contact with the side surface of the nozzle 41, and if the tube material 12 is inserted between the introduction roller 52 and the nozzle 41, the tube material 12 is conveyed.

Such an introduction roller 52 is arranged so as to be in sliding contact with a portion having a diameter of a circular vertical cross section on both side surfaces of the nozzle 41. That is, the introduction roller 52 is arranged so as to be in sliding contact with both side surfaces of the nozzle 41 at a portion corresponding to the height of the axial center of the nozzle 41.

The position where the introduction roller 52 is provided in the longitudinal direction of the nozzle 41 is a position closer to the transport direction from the base of the tapered shape portion 41b of the nozzle 41. Speaking of the relationship between the discharge port 43 and the sub discharge port 44 described above, the introduction roller 52 is on the opposite side of the discharge port 43 in the transport direction, and is at a position corresponding to the sub discharge port 44, specifically, the sub discharge port 44. It is set at a position corresponding to the end of the outlet 44 in the transport direction.

That is, the discharge port 43 is formed on the transport direction side of the nozzle 41 with respect to the position where the introduction roller 52 is provided. Further, the sub-discharge port 44 is formed on the opposite side of the nozzle 41 from the position where the introduction roller 52 is provided in the transport direction.

A pair of transport seal rollers 53 are provided so that their peripheral surfaces are in contact with each other, and have rotation axes in the vertical direction orthogonal to the longitudinal direction of the nozzle 41. The position where the transport seal roller 53 is provided is above the nozzle 41 and above the lower end of the vertical seal portion 14 of the tube material 12 so that the swollen air filling chamber 13 can be sealed. is there.

The transport seal roller 53 is divided into three layers in the thickness direction (see FIG. 5), the upper and lower two layers are the portions for transport, and the intermediate layer is the portion for sealing. The intermediate layer of one of the pair of transport seal rollers 53a and 53b of the transport seal rollers 53a is a heat generating portion 55 and has a heater. The heat generating portion 55 does not rotate. The intermediate layer (not shown) of the other transport seal roller 53b rotates together with the upper and lower two layers, and is a portion that sandwiches the tube material 12 with the heat generating portion 55.

Similar to the transport seal roller 53, the feed rollers 54 are provided in pairs so that their peripheral surfaces are in contact with each other, and have rotation axes in the vertical direction orthogonal to the longitudinal direction of the nozzle 41. The height at which the delivery roller 54 is provided is the same as the height at which the transport seal roller 53 is provided.

The introduction roller 52, the transfer seal roller 53, and the delivery roller 54 have gears (not shown) coaxially with each other. In order to drive these gears, a roller drive motor 61 with one speed reducer is provided in the housing 31 (see FIG. 6). The rotational force of the roller drive motor 61 is transmitted to the gears, and each pair of rollers 52, 53, 54 arranged so as to sandwich the nozzle 41 is configured to rotate in the opposite direction at a constant speed in the transport direction. To.

FIG. 6 shows a block diagram of the device 11. As shown in FIG. 6, the roller drive motor 61, the blower 42 and the heat generating unit 55 described above are driven and controlled by the control unit 62. The control unit 62 is also provided with a power switch 64 (see FIG. 1) for turning on / off a power supply 63 composed of a battery or a commercial power supply, an operation switch 65 of the operation panel 35 described above, and the operation panel 35. A display 66 that displays the status of the device 11 is connected. The control unit 62 drives and controls the roller drive motor 61, the blower 42, the heat generating unit 55, and the display 66 based on the operation of the operation switch 65 according to a program stored in advance.

The operation switch 65 includes a start switch for starting production, a stop switch for stopping operation, and a switch for adjusting the temperature and air volume of air blown from the blower 42.

The control unit 62 is set to start the roller drive motor 61, the blower 42, and the heat generating unit 55 at the same time when the start switch is turned on. The temperature and air volume of the air blown from the blower 42 are set to appropriate reference values, and the temperature control switch and the air volume control switch are set so that the temperature can be changed up and down and the air volume can be changed.

In the device 11 configured as described above, the initial set is made as follows, and the air cushioning material is manufactured.

That is, in the initial set, the tip of the roll-shaped tube material 12 held by the holder portion 32 is pulled out and extended along the curved outer surface 37e of the guide material 37 to the processed portion 34. Subsequently, as shown by a solid line in FIG. 7, the tip of the air supply path 15 at the lower end of the tube material 12 is fitted into the nozzle 41, and the tip of the tube material 12 is brought into contact with the introduction roller 52. When the start switch is turned on in this state, the roller drive motor 61, the blower 42, and the heat generating unit 55 are started at the same time by the control unit 62.

By these starts, air is supplied from the sub-discharge port 44 to the air filling chamber 13 at the tip of the tube material 12, and the introduction roller 52 starts the transfer. The air supply path 15 swells due to the air supply from the sub-discharge port 44, and the introduction roller 52 smoothly conveys the air. Further, since the introduction roller 52 conveys the tube material 12 with the tube material 12 sandwiched between the introduction roller 52, the introduction roller 52 does not easily come off even if air is discharged from the auxiliary discharge port 44, and the desired transfer is performed.

As described above, in the initial set, it is only necessary to pull out the tube material 12, cover the tip of the air supply path 15 with the nozzle 41, and bring it into contact with the introduction roller 52. The production of air cushioning material starts immediately when the start switch is turned on.

When the air filling chamber 13 at the tip approaches the discharge port 43 by being conveyed by the introduction roller 52, full-scale air filling is performed by discharging air from the discharge port 43. At this time, since the lower end 12b of the tube material 12 is closed and firmly sandwiched by the introduction roller 52, the tube material 12 does not come off from the nozzle 41.

Subsequently, when the air filling chamber 13 at the tip is conveyed by the transfer seal roller 53, the heat generating portion 55 seals the tube material 12, and as shown by a virtual line in FIG. 7, the tube material 12 has a horizontal seal portion 18. The formed and swollen air filling chamber 13 is sealed.

After that, when the air filling chamber 13 at the tip is conveyed by the delivery roller 54, the lower end 12b of the tube material 12 having the expanded air filling chamber 13 is cut open by the cutting blade 45. As a result, the tube material 12 can pass through the base portion 41a of the nozzle 41 and is sent out.

The air cushioning material is manufactured by sequentially performing the above-mentioned processing from the air filling chamber 13 at the tip of the tube material 12. Since the manufactured air cushioning material is in a state of being connected via the perforation 17, it can be easily separated and used as needed.

As described above, the air is discharged from the discharge port 43 and the sub discharge port 44 at the same time as the transfer means 51 is started. However, since the introduction roller 52 that is in sliding contact with the nozzle 41 is provided on the opposite side of the discharge port 43 in the transport direction as the introduction means, the tube material 12 can be easily introduced into the nozzle 41, and the tube material by the transfer means 51 is provided. 12 can be reliably transported.

In particular, the introduction roller 52 is provided at a position closer to the transport direction from the base of the tapered shape portion 41b of the nozzle 41, and is arranged so as to be in sliding contact with a portion having a circular diameter in the vertical cross section on both side surfaces of the nozzle 41. Since it is provided, a large space can be taken for the tip of the tube material 12 to enter. This also facilitates the introduction of the tube material 12 into the nozzle 41.

In this way, the initial setting of the tube material 12 at the time of starting the device 11 can be easily and surely performed. Moreover, since the air filling chamber 13 at the tip of the tube material 12 can also be filled with air and sealed, waste of the tube material 12 can be eliminated.

The introduction means for facilitating the introduction of the tip of the air supply path 15 of the tube material 12 into the nozzle 41 can also be composed of a transfer means 51 and a control unit 62 for driving and controlling the blower 42 for supplying air. That is, the control unit 62 is set to control to start the blower 42 after starting the transport means 51. The timing for starting the blower 42 can be determined by the passage of a preset predetermined time or the detection of the tip of the tube material 12 by the sensor.

The former control operation by the control unit 62 will be described with reference to the flowchart of FIG. When the start switch of the operation panel 35 is turned on (step s1), the control unit 62 starts the roller drive motor 61 and the heat generating unit 55 (step s2), and clocks a predetermined time, for example, 1 second to several seconds. After a lapse of a predetermined time (step s3), the control unit 62 starts the blower 42 (step s4). When the stop switch is turned on (step s5), the control unit 62 stops the roller drive motor 61, the heat generating unit 55, and the blower 42 (step s6).

In the device 11 having such a control unit 62, the start switch is turned on while the tip of the air supply path 15 of the tube material 12 is placed on the tip of the nozzle 41 and directed in the transport direction regardless of the presence or absence of the introduction roller 52. Then, the initial set will be done. "While pointing" means that the roller 52 or the transport seal roller 53 is in a state of moving in the contacting direction even if it is not in contact with the introduction roller 52 or the transport seal roller 53.

The tip of the tube material 12 is conveyed by the control unit 62 starting the roller drive motor 61 to rotate the introduction roller 52 or the transfer seal roller 53. That is, the tube material 12 is in a state of covering the nozzle 41 and does not easily come off from the nozzle 41.

In this state, the blower 42 is started to supply air to the air filling chamber 13 of the tube material 12 from the discharge port 43 and the sub-discharge port 44, and the horizontal seal portion 18 is sequentially formed and the lower end 12b is cut open. Air cushioning material is manufactured.

If the introduction means by the control unit 62 is provided, the number of parts can be reduced by omitting the introduction roller 52.

By providing the introduction means, the initial setting is easy as described above, but in order to make it easier to cover the tip of the tube material 12 with the nozzle 41, for example, as shown in FIG. 9, the air of the tube material 12 is provided. The shape of the tip of the supply path 15 may be changed. That is, the tip of the tube material 12 of the above-mentioned example was a straight line in a direction orthogonal to the longitudinal direction, and the perforations 17 formed were also straight lines throughout. In this configuration, it may be difficult to open the tip of the air supply path 15 of the tube material 12. If it is difficult to open, it takes time to cover the nozzle.

Therefore, as shown in FIG. 9, the tip opening 19 of the air supply path 15 of the tube material 12 may be tilted from a direction orthogonal to the longitudinal direction of the tube material 12. The inclination is such that the lower end 12b is located on the opposite side of the transport direction. An inclined portion 17a similar to the tip opening 19 may be formed at the lower end of the perforation 17.

With this configuration, the length of the tip opening 19 which is the portion to which the nozzle 41 should come into contact can be increased, which makes it easier to open and improves workability. Therefore, the tube material 12 can be easily introduced into the nozzle 41 not only from the surface of the device 11 but also from the surface of the tube material 12.

The above configuration is a form for carrying out the present invention, and the present invention is not limited to the above-mentioned configuration, and other configurations can be adopted.

For example, the transport means 51 and the introduction transport means may be configured by using a belt.

An appropriate sealing method may be used for forming the horizontal sealing portion 18.

The vertical seal portion 14 may have a curved shape other than the straight line.

11 ... Air cushioning material manufacturing equipment 12 ... Tube material 13 ... Air filling chamber 15 ... Air supply path 18 ... Horizontal seal part 41 ... Nozzle 41b ... Tapered shape part 42 ... Blower 43 ... Discharge port 44 ... Sub-discharge port 45 ... Cutting Blade 51 ... Conveying means 52 ... Introduction roller 62 ... Control unit

Claims (7)

Using a flat tube material having a plurality of air filling chambers in the longitudinal direction and an air supply path at one end in the direction orthogonal to the longitudinal direction, a rod-shaped nozzle extending the air supply path horizontally is used. An air cushioning material produced by covering and sealing the air filling chamber while transporting the tube material by a transport means, sealing the air filling chamber, and cutting open the end of the tube material on the air supply path side. It is an air cushioning material manufacturing device that sends out
An air cushioning material manufacturing apparatus provided with an introduction means for facilitating the introduction of the tip of the air supply path of the tube material into the nozzle. As the introduction means, a control unit for driving and controlling the transport means and the blower that supplies the air is provided.
The air cushioning material manufacturing apparatus according to claim 1, wherein the control unit controls to start the blower after starting the transport means. At the tip of the nozzle, a tapered portion that is thinner toward the side opposite to the transport direction is formed.
The introduction means is composed of an introduction transfer means that slides in contact with the side surface of the nozzle and rotates in the transfer direction.
The air cushioning material manufacturing apparatus according to claim 1, wherein the introduction transport means is provided at a position closer to the transport direction from the base of the tapered portion of the nozzle. The air cushioning material manufacturing apparatus according to claim 3, wherein a discharge port for discharging air is formed on the side of the nozzle in the transport direction with respect to the position where the introduction transport means is provided. The air cushioning material manufacturing apparatus according to claim 4, wherein an auxiliary discharge port having a smaller air volume than the discharge port is formed on the side of the nozzle opposite to the transport direction from the position where the introduction transport means is provided. The nozzle has a circular vertical cross section and
The introduction transport means is composed of a pair of introduction rollers.
The air cushioning material manufacturing apparatus according to any one of claims 3 to 5, wherein the outer peripheral surface of the introduction roller is cylindrical. The air cushioning material manufacturing apparatus according to claim 6, wherein the introduction roller is arranged so as to be slidably contacted with portions having a diameter having a circular vertical cross section on both side surfaces of the nozzle.

Images