JP2001328117A - Volume decreasing machine for packaging sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a volume decreasing machine for a packaging sheet, which is small-sized and can simply compress the packaging sheet and decrease its volume. SOLUTION: The volume decreasing machine for the packaging sheet is equipped with a rotary driving shaft 14 connected to a driving means 13, a winding member 15 equipping both a core material part 29 being stuck, which is fitted to the rotary driving shaft 14, and a first circular side plate part 30 provided on its base side, a stopper member 16 equipping a second circular side plate part 40 arranged oppositely to the first circular side plate part 30, a drum plate member 18 which has inside diameter larger than the diameter of the first and second circular side plate parts 30, 40 and surrounds a winding reel 17 consisting of the winding member 15 and the stopper member 16 and has flange parts 47, in which a plurality of notchs 48 are formed, on both sides and is equipped with a sheet winding port 49 and spread to the outside in the radial direction, a supporting member 19 fixing it and with an elastic supporting means 57 which elastically supports a sheet guide part 56 of the sheet winding port 49 and relaxes shock load at the time of winding of the packaging sheet 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing sheet volume reducing machine for compressing and reducing the volume of a packing sheet such as a stretch film used for packing, thereby facilitating disposal and reuse.

[0002]

2. Description of the Related Art Conventionally, a packing sheet such as a stretch film has been used for packing a large number of protected articles collectively or for protecting the exterior of a deformed protected article. The stretch film has, for example, a thickness of 5 to 5
It is made of plastic having a rubber elasticity of 0 μm, and is used while being wound around the outer periphery of the protected article several times while being stretched at normal temperature. The stretch film wound around the outer periphery of the protected article is polymerized, and the stretch films meet each other,
The protected article is pressed inward by rubber elasticity. With such a configuration, the outer peripheral surface of the protected article is prevented from sliding with other articles, and when a large number of protected articles are packed, the packing is removed and the protected articles are separated. Can be prevented. When removing the stretch film after transport, the stretch film wound on the protected article can be peeled from the outer end,
Cut the part of the stretch film that overlaps with a knife,
The stretched film in the polymerized state could be peeled from the protected article. The used stretch film separated from the protected article was gathered in one place and handed over to a processing company along with other unnecessary items.

[0003]

However, in the conventional method for disposing of a stretch film, the used stretch film which has been peeled off is bulky as compared with other regular packing materials such as cardboard boxes and styrofoam. When a large amount of stretch film is discarded, it is difficult to secure a space for temporary disposal of the stretch film, and the efficiency of transporting and reusing the waste is also poor. For this reason, a device for compressing and reducing the volume of the stretch film was necessary, but such a device is only an expensive press device driven by hydraulic pressure, and it is difficult to further reduce the size because the mechanism is complicated, In addition, there is a problem that the layout of a factory or a warehouse cannot be changed because it is difficult to move after being once installed. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a packing sheet volume reducing machine that is compact and can easily compress and reduce the volume of a packing sheet.

[0004]

According to the present invention, there is provided a stretch film volume reducing machine according to the present invention, which is made of a thin plastic having elasticity, and is wrapped around a protected article to protect the protected article. A packing sheet volume reducing machine for compressing and reducing the volume of a package, comprising: a rotary drive shaft connected to driving means, driven to rotate, and cantilevered by a mounting base; and mounted to the rotary drive shaft from the front side. And a winding member including a core material portion around which the packing sheet is wound, a first circular side plate portion provided on a base side of the core material portion, and a leading side of the core material portion. A stopper member having a boss portion mounted from the first boss portion, and a second circular side plate portion attached to the boss portion and disposed to face the first circular side plate portion;
A flange portion having an inner diameter larger than the diameter of the first and second circular side plate portions and surrounding a take-up reel comprising a combination of the take-up member and the stopper member, and having a plurality of notches formed therein. A body plate member having on both sides and capable of expanding radially outward with a sheet winding opening provided in a part in the circumferential direction, and the sheet winding opening being in a free state, a part of the body plate member A support member fixed to the mounting base,
Elastic supporting means for elastically supporting a sheet guide portion attached to one of the sheet winding openings to reduce an impact load when the packing sheet is wound.

[0005] For example, a stretch film is used as a packing sheet. The stretch film is wound around the outer periphery of the protected article while being stretched, and has a width of, for example, 20
Those having a thickness of 0 mm to 2000 mm and a thickness of 10 μm to 30 μm are often used. The cross-sectional shape of the body plate member in the radial direction is a C-shape obtained by cutting a part of a circle, and the cut portion serves as a sheet winding port. As the driving means, for example, a reduction motor having a reduction ratio of 1/50 to 1/200 can be used, and the rotation speed of the rotary drive shaft is, for example, 10 to 30 rpm.
m. The body plate member has a thickness of, for example, 1
It is formed so as to be bendable so as not to be broken in each notch of the flange portion on both sides by 5 mm. The statement that the sheet take-up opening is in the free state means that both ends of the body plate members located on both sides of the sheet take-up opening can be moved by bending the body plate member.

[0006] The sheet guide section is formed of, for example, a pipe, and prevents the inserted packing sheet from sticking to the end of the body plate member. The packing sheet supplied from the sheet winding port temporarily stays at the inner bottom of the body plate member. When another packing sheet is supplied, the packing sheet overlaps and sticks to the already-packed packing sheet. When a part of the packing sheet that is successively put into contact with the core material portion of the take-up reel and is scraped off, the packaging sheet is continuously wound on the core material portion. When the supplied packing sheet is partially bulky, the packing sheet is corrected by the inner peripheral portion of the body plate member, and is formed into a substantially cylindrical shape. Further, when a lump of packing sheet is supplied, the body plate member bends and spreads radially outward, so that the frictional force between the body plate member and the packing sheet becomes excessively large, and the apparatus becomes unusable. Stopping or failure can be prevented. After forming the packing sheet into a cylindrical shape, stop the device, remove the take-up reel from the packing sheet volume reducer, remove the stopper member from the take-up reel, and remove the packing sheet from the core material part to be adhered. Remove it. With this configuration, the apparatus can be downsized, the packing sheet can be easily compressed and reduced in volume, and a cylindrical packing sheet block can be formed.

Here, a cylindrical portion mounted on the rotation drive shaft, a plurality of auxiliary core members rotatably mounted around a base of the cylindrical portion, and the cylindrical portion, Provided around the base of the auxiliary core material to prevent the auxiliary core material from opening radially outward beyond the parallel position with respect to the cylindrical portion, and a boss portion of the stopper member, It is also possible to provide a core material guide portion attached to the tip of the cylindrical portion and holding the outer portions of the plurality of auxiliary core materials in parallel with the cylindrical portion. As the auxiliary core material, for example, a square, round, or groove-shaped rod-shaped member can be used. When the stopper member is attached to the adhered core portion of the winding member, the auxiliary core material is held in parallel at both ends by the diameter expansion preventing material and the core material guide portion, so that the packing sheet can be easily wound.

When the stopper member is removed from the winding member, the leading end of the auxiliary core material moves toward the axis of the rotary drive shaft, and is formed into a cylindrical shape having a through hole on the inside in accordance with the shape of the core material to be adhered. Since the contact with the inner peripheral portion of the formed packing sheet is released, the packing sheet can be easily removed. In addition, it is preferable that the diameter expansion preventing member is formed in a cylindrical shape or a truncated cone shape. Preferably, the boss is also formed in a truncated cone shape. With this configuration, the sliding resistance when removing the packing sheet can be reduced, and the removal can be easily performed. Further, it is also possible to provide projections on the inside of the first and second circular side plate portions, respectively, for hooking the packing sheet to be wound. The protrusion is
For example, one or two or more can be provided in parallel with the rotation drive shaft. With this configuration, the packing sheet staying at the inner bottom of the body plate member can be scraped up and brought into contact with the adhered core material portion, so that winding can be performed efficiently.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. As shown in FIGS. 1 to 3, a packing sheet volume reducing machine 10 according to an embodiment of the present invention is made of a thin plastic having elasticity, and is wound around a protected article (not shown) to form the protected article. This is a device for compressing and reducing the volume of the packing sheet 11 to be protected after use. The details will be described below. The packing sheet volume reducing machine 10 includes a mounting base 12 and a reduction motor 13 provided inside the mounting base 12 and serving as an example of a driving unit that is placed horizontally. The following description is based on the assumption that the side on which the reduction motor 13 of the mounting base 12 is provided is the base side. Above the mounting base 12, a rotation drive shaft 14 that is cantilevered on the base side of the mounting base 12 and that is connected to a deceleration motor 13 with its axis parallel to and driven to rotate is provided. A take-up reel 17 provided with a take-up member 15 and a stopper member 16 is mounted on the rotary drive shaft 14, and a body plate member 18 surrounding the take-up reel 17 is provided on the upper portion of the mounting base 12 via a support member 19. Fixed.

First, the mounting base 12 and the reduction motor 13
Will be described. The mounting base 12 includes a deceleration motor 13
Has a dimension in the axial direction of 600 to 1000 mm and a dimension in the direction perpendicular to the axial center of 400 to 800 mm,
It has a height of 400 to 800 mm and is fixed to the floor at the mounting position. The deceleration motor 13 provided on the mounting base 12 is a product without a brake having an output of, for example, about 0.2 to 0.6 W, and can be operated continuously. Two rows of V pulleys 21 are attached to the output shaft 20 of the reduction motor 13. Next, the rotary drive shaft 14 will be described. A support base 22 is provided at the base upper portion of the mounting base 12. The rotation drive shaft 14 is rotatably supported on the base side by bearings 25 and 26 provided on the support base 22, and is arranged parallel to the output shaft 20 of the reduction motor 13.

At the base end of the rotary drive shaft 14, two rows of V
Pulleys 23 are mounted, and are connected to V pulleys 21 mounted on the reduction motor 13 via V-belts 24, respectively. By using the V-belt 24 for power transmission, when a large overload is applied during the operation of the packing sheet volume reducer 10, the V-belt 24 is kept rotating while the deceleration motor 13 is rotated.
By causing the belt 24 to slip, the rotary drive shaft 14 can be stopped and can be used as a torque limiter. At this time, since the deceleration motor 13 is kept rotating, the load on the deceleration motor 13 due to the overcurrent can be reduced. In addition, as shown in FIG.
A female screw portion 27 for fixing the take-up reel 17 is formed at the distal end of the reel 4 so as to correspond to the axial position of the rotary drive shaft 14. Further, a key 28 for connecting the take-up reel 17 is provided near the bearing 25 on the rotation drive shaft 14 on the front side of the support base 22.

Next, referring to FIGS. 3, 4, 5 (A) and 5 (B), take-up provided with a take-up member 15 and a stopper member 16 which are detachably mounted on the rotary drive shaft 14. The reel 17 will be described. First, the winding member 15 will be described. The take-up member 15 is attached to the rotary drive shaft 14 from the front side, and a core material 29 to be wound around the packing sheet 11, and a first circular side plate provided on the base side of the core material 29. 30. First circular side plate 30
Is, for example, a disk portion 31 having a diameter of 300 mm to 500 mm.
A circular reinforcing bar 32 is attached to the outer periphery of the steel bar. Since the circular reinforcing bar 32 is attached to the outer periphery of the rotating disk portion 31, the edge portion can be eliminated, and the safety in attaching and detaching the take-up reel 17 can be improved.

On the front side surface of the first circular side plate portion 30, the packing sheet 11 staying at a position below the adhered core material portion 29 is hooked, and the projection 3 is wound around the adhered core material portion 29.
3 are provided at, for example, 2 to 8 places. Protrusion 33
Is formed of a square or circular bar that gradually becomes thinner toward the front side. Since it gradually becomes thinner toward the front side, it can be easily extracted from the compressed packing sheet. The protrusions 33 are provided concentrically on the first circular side plate portion 30 so that the packing sheet 11 on a fixed locus can be scraped off. It is also possible to hang a certain packing sheet 11. Further, the shape of the protrusion 33 can be formed in a plate shape.

Here, the adhered core portion 29 will be described in detail. The adhered core material portion 29 includes a tubular portion 34 having an annular cross section mounted on the rotary drive shaft 14, and four auxiliary core materials 35 that are rotatably and uniformly arranged around the base of the tubular portion 34 and attached.
And a diameter-preventing member 36 provided around the base of the tube portion 34 to prevent the auxiliary core 35 from opening beyond the parallel position with respect to the tube portion 34 and outward in the radial direction. The four auxiliary cores 35 are formed in a groove shape, and are arranged with their respective openings directed toward the axis of the rotary drive shaft 14. In addition, the tip of the auxiliary core 35 is chamfered to prevent the packing sheet 11 wound around the auxiliary core 35 from being caught when it is pulled out and to facilitate the mounting of the stopper member 16. On the other hand, on the outer periphery of the base of the cylindrical portion 34,
Brackets 37 for attaching the four auxiliary cores 35 are equally arranged.

The base-side end of each auxiliary core 35 and the cylindrical portion 34
The brackets 37 are connected to each other so as to be rotatable via rotation pins 38 provided in a direction of penetrating both side walls at the bottom of the groove of the auxiliary core material 35, that is, in a circumferential direction of the cylindrical portion 34. ing. With such a configuration, the auxiliary core material 35
Is rotated, the tip of the auxiliary core 35 is moved to the rotation drive shaft 1.
4 can move in a direction close to or away from the axis. The diameter expansion preventing member 36 is formed in a ring shape whose diameter is gradually reduced toward the front side, and has a base end portion concentrically fixed to the first circular side plate portion 30. Radius R1 of the tip of the diameter expansion preventing material 36
Is substantially equal to the distance L1 from the center of the rotary drive shaft 14 to the outer end of the auxiliary core 35 when the auxiliary core 35 is arranged parallel to the cylindrical portion 34 (the state shown in FIGS. 4 and 5B). It is configured to be substantially the same or slightly larger than the distance L1.

Next, the stopper member 16 will be described with reference to FIGS. 3, 4, and 5B. The stopper member 16 has a cylindrical boss portion 39 attached from the front side of the adhered core material portion 29, and a second boss portion 39 attached to the boss portion 39 and arranged to face the first circular side plate portion 30. A circular side plate 40 is provided. The second circular side plate portion 40 includes the first circular side plate portion 40.
Disk portion 31 and circular reinforcing bar 3 used in the circular side plate portion 30
2, and the projections 33, but since these components have already been described, description thereof will be omitted here.
The protrusions 33 are provided inside the first and second circular side plate portions 30 and 40 that are opposed to each other. Both ends of two groove-shaped handles 41 having a central portion protruding toward the front side of the second circular side plate portion 40 are fixed to the second circular side plate portion 40, respectively. At the base side of the boss portion 39, a core material guide portion 42 is provided which is attached to the tip of the cylindrical portion 34 and holds the outer portions of the four auxiliary core materials 35 in parallel with the cylindrical portion 34. ing. The core material guide portion 42 has a truncated cone shape whose diameter gradually decreases toward the base side, and has a through hole 43 that is fitted to the cylindrical portion 34 at the center. The through hole 43 is provided in the boss 39
And is communicated with a positioning hole 45 that is provided in the main body and opens toward the base side. A connection hole 46 having a diameter smaller than that of the positioning hole 45 is formed at the center of the front side of the boss portion 39 so as to communicate with the positioning hole 45.

At the tip of the boss portion 39, fixed pin members 44 projecting from the outside in the radial direction toward the positioning hole 45 so as to be able to advance and retreat are equally arranged at three places in the circumferential direction. The fixed pin member 44 is configured to be able to manually switch its advance / retreat position. When the fixing pin member 44 is advanced,
The distal end of the fixing pin member 44 protrudes into the positioning hole 45, and fits into fixing holes 44 a provided at three locations radially outside the tip of the cylindrical portion 34 disposed in the positioning hole 45, The stopper member 16 can be fixed to the cylindrical portion 34. When the fixing pin member 44 is retracted, the tip of the fixing pin member 44 is fixed to the fixing hole 4 of the cylindrical portion 34.
4A, the stopper member 16 can be removed from the cylindrical portion. The take-up reel 17 can be fixed to the female screw portion 27 formed at the tip of the rotary drive shaft 14 by a manually-rotatable bolt member 60 inserted into the connection hole 46 of the boss portion 39.

Here, FIGS. 3, 4, 5A and 5B
The operation of the core material portion 29 of the take-up reel 17 will be described with reference to FIG. Boss 39 of stopper member 16
Is externally fitted to the cylindrical portion 34 of the adhered core material portion 29, the core material guide portion 42
4, the tip of the auxiliary core 35 moves radially outward of the rotary drive shaft 14. At this time, since the outer periphery of the base of the auxiliary core member 35 abuts on the inside of the distal end portion of the diameter expansion preventing member 36, the auxiliary core member 35 is fixed at a position parallel to the rotary drive shaft 14. As shown in FIG. 5A, when the packing sheet 11 is wound around the diameter-preventing material 36, the packing sheet 11 has rubber elasticity. I do.

When removing the packing sheet 11 from the adhered core material portion 29, the core material guide portion 42 of the stopper member 16 is used.
Is removed from the tube portion 34. Then, the tip of the auxiliary core 35 moves in the axial direction of the rotary drive shaft 14, and the contact between the auxiliary core 35 and the packing sheet 11 is released. When the auxiliary core material 35 and the packing sheet 11 are in contact with each other, the packing sheet 1
Even if it is attempted to extract 1 from the diameter preventing material 36, it cannot be easily removed because a large frictional resistance is generated between the packing sheet 11 and the diameter preventing material 36.
In the packing sheet volume reducing machine 10 according to the present embodiment, the diameter expansion preventing member 36 is configured to be movable, so that the extraction can be easily performed.

Next, referring to FIGS. 1 and 2, a description will be given of a body plate member 18 surrounding the take-up reel 17 and a support member 19 for supporting the body plate member 18 and fixing it to the mounting base 12. The body plate member 18 has an inner diameter larger than the diameters of the first and second circular side plate portions 30 and 40 and surrounds the take-up reel 17 formed by a combination of the take-up member 15 and the stopper member 16. Are formed on both side edges in the axial direction, and a sheet winding port 49 is provided in a part of the circumferential direction so as to be able to expand radially outward. The body 50 of the body plate member 18 is, for example, between 5 and 2 mm between both ends of a rectangular plate having a thickness of 1 to 4 mm.
In a state where a gap of 0 mm is provided, the rotation drive shaft 14 is bent in an arc shape having a radius of 100 mm to 300 mm, that is, in a C-shaped cross section. The height from the floor to the upper end of the body plate member 18 is, for example, 600 to 1400 mm. Both ends 51 and 52 in the circumferential direction of the body 50 sandwiching the sheet winding port 49 are arranged at the same level as the height of the axis of the body 50. The upper end 51 is provided at the same radial position as the main body of the body 50, and the lower end 52 is provided so as to protrude radially outward from the upper end 51. With this configuration, a rectangular sheet winding port 49 is formed. In a normal state, the size of the sheet winding port 49 is
Are formed to have a radial length of 100 to 150 mm and an axial length of 300 to 500 mm.

The lower end 52 of the body 50 has a body 50
A pipe-shaped sheet guide portion 56 is provided along the axial direction. When the packing sheet 11 is loaded, the packing sheet 11 is moved downward by the sheet guide portion 56.
In addition to preventing sticking to the surface, the edge part has been eliminated to improve work safety. The flange portion 47 provided on each of the two peripheral edges of the body portion 50 in the axial direction includes three lower portions on both sides when the body portion 50 is viewed in the axial direction, and three V-shaped notches 48 formed on the upper portion. Each is divided into. Here, of the divided flange portions 47, the one located below is connected to the fixed flange piece 53 and the lower end portion 52 of the body 50 is connected to the lower flange piece 54, the body 50.
The upper flange piece 5 is connected to the upper end 51 of the
The one located between the upper flange piece 55 and the fixed flange piece 53 will be described as a buffer flange piece 59.

The outside of the body 50 at the portion sandwiched between the fixed flange pieces 53 on both sides is fixed to the mounting base 12 via the support member 19. With this configuration, the sheet take-up port 49 is supported in a free state in which it can move in the radial direction. The end portion 51 side of the upper flange piece 55 expands in the radial direction and abuts on the upper portion of the lower flange piece 54, and also protrudes below the end portion 51 so that the loaded packing sheet 11 does not move in the axial direction. I'm guiding you. In addition, guide rods 58 bent in a groove shape are fixed to the upper flange pieces 55 on both sides and the outer portion of the body 50 sandwiched therebetween, and are opened to the sheet guide portion 56 side. . The guide bar 58 can be used as a mark when the packing sheet 11 is inserted.

The upper flange piece 55 and the lower flange piece 54 on both sides elastically support the sheet guide portion 56 and are a tension coil which is an example of elastic support means for alleviating an impact load at the time of winding the packing sheet 11. A spring 57 is provided. With this configuration, the lower portion of the body 50 is bent by pulling the sheet guide portion 56 outward in the radial direction of the body 50, and the fixed flange piece 53 and the lower flange piece 5 are bent.
The sheet winding port 49 is bent at the notch 48 between the four, and the radial dimension of the sheet winding port 49 is reduced, for example, by 10
It can be enlarged to about 0 mm. Next, the operation of the body plate member 18 will be described. The used packing sheet 11 is supplied from the sheet winding port 49. At this time,
When the size of the packing sheet 11 is large, the sheet winding port 49 can be enlarged by pulling the sheet guide portion 56 outward in the radial direction.

The loaded packing sheet 11 is scraped up by the first and second circular side plates 30 and 40 and wound around the core material 29 to form a substantially cylindrical shape. When the packing sheet 11 is further inserted, the newly inserted packing sheet 11 is wound around the outside of the packing sheet 11 already wound around the core material portion 29 to be adhered. By repeating this, the outer periphery of the newly inserted packing sheet 11 slides on the body 50 of the body plate member 18 and rotates while its cross-sectional shape is corrected to an arc shape. At this time, when the trunk 50 is strongly pressed outward by the lump of the loaded packing sheet 11, the trunk 50 can be expanded in diameter outward. That is, the body 50 can be bent outward from each notch 48 with reference to a portion sandwiched between the fixed flange pieces 53. At this time, the lump of the packing sheet 11 is pressed inward by the elastic force of the bent body 50 and the extension coil spring 57, so that the packing sheet 11 is gradually formed, and is already loaded and inserted. It is formed into a cylindrical shape integrally with the packing sheet 11 wound around the material portion 29. With this configuration, it is possible to efficiently reduce the volume of the loaded packing sheet 11.

Next, a procedure for using the packing sheet volume reducing machine 10 will be described. The packing sheet volume reducing machine 10 is installed, for example, near a temporary disposal site in a factory or near an unpacking site. First, the stopper member 16 is inserted into the tip of the cylindrical portion 34 of the winding member 15, the stopper member 16 is rotated, and the position of the fixing pin member 44 and the fixing hole 44 a is adjusted. The take-up reel 17 is assembled by fitting it into the fixing hole 44a and fixing it. Then, the take-up reel 17 is inserted through the rotary drive shaft 14 and fixed with the bolt member 60. Next, the speed reduction motor 13 is driven to rotate the take-up reel 17 connected to the rotary drive shaft 14.

Then, the packing sheet 11 is loaded, and the loaded packing sheet 11 is formed into a cylindrical shape to reduce the volume.
The amount of the loaded packing sheet 11 is confirmed by visually observing the inside from the sheet take-up port 49 and from the gap between the outer periphery of the second circular side plate portion 40 of the take-up reel 17 and the body plate member 18. can do. Furthermore, the packing sheet 11
It is also possible to confirm the state by the state of the body plate member 18 whose diameter is increased by sliding. After the volume of the packing sheet 11 is reduced, the speed reduction motor 13 is stopped, and the bolt member 60 is removed. Then, the first and second circular side plate portions 3
Packing sheet 11 formed in a cylindrical shape between 0 and 40
From the rotary drive shaft 14 together with the take-up reel 17 using the handle 41. The weight of the take-up reel 17 around which the packing sheet 11 is wound is set to, for example, 10 to 40 kg.

The fixing pin members 44 of the take-up reel 17 removed from the rotary drive shaft 14 are respectively retracted, and the stopper members 16 are removed. The protrusion 33 provided on the first circular side plate 30 and the core material guide 42 formed on the boss 39 are gradually reduced in diameter toward the rotary drive shaft 14, so that they can be easily removed. it can. Stopper member 16
When it is removed, the auxiliary core 35 of the adhered core 29 is removed from the inside of the reduced packing sheet 11. Then, the packing sheet 11 can be removed from the winding member 15.
With such a configuration, a large amount of bulky packing sheets 11
Can be reduced in size with a simple device, the temporary storage space for the packing sheet 11 to be discarded can be reduced, and the time for discarding can be shortened. The embodiment according to the present invention has been described above. However, the present invention is not limited to the above-described embodiment. For example, a cover may be provided outside the rotating part of the device to improve the safety of the device. It is also possible to use chains for power transmission. Furthermore, it is also possible to provide a caster at the lower part of the packing sheet volume reducing machine so as to be movable.

[0028]

In the packing sheet volume reducing machine according to any one of claims 1 to 3, a core material section around which the packing sheet is wound;
A body plate member surrounding the take-up reel, having a plurality of notched flange portions on both sides, and having a sheet take-up port provided in a part of the circumferential direction and capable of expanding radially outward. Therefore, the size of the apparatus can be reduced, the packing sheet can be easily compressed and reduced in volume, and a cylindrical packing sheet block can be formed. In addition, since the body plate member expands outward, the degree of freedom of the shape of the loaded packing sheet can be increased, and the volume of the packing sheet to be reduced can be reduced while efficiently forming the outer shape. In particular, in the packing sheet volume reducing machine according to the second aspect, since the attached core portion has a plurality of auxiliary cores rotatably mounted around the base of the cylindrical portion, the volume is reduced. When the removed packing sheet is removed, the tip of the auxiliary core material is released from contact with the inner peripheral portion of the packing sheet, so that the packing sheet can be easily removed. In the packing sheet volume reducing machine according to the third aspect, since the projections for hooking the packing sheet to be wound are provided inside the first and second circular side plate portions, they stay at the inner bottom portion of the body plate member. The packing sheet can be scraped up and brought into contact with the adhered core material portion, so that winding can be performed efficiently.

[Brief description of the drawings]

FIG. 1 is a front view of a packing sheet volume reducing machine according to an embodiment of the present invention.

FIG. 2 is a right side view of the packing sheet volume reducing machine.

FIG. 3 is an explanatory view showing a structure of a take-up reel of the packing sheet volume reducing machine.

FIG. 4 is a partial side view showing a mounting state of a take-up reel of the packing sheet volume reducing machine.

FIGS. 5A and 5B are explanatory views showing a configuration of a core material part of the packing sheet volume reducing machine.

[Explanation of symbols]

10: Packing sheet volume reduction machine, 11: Packing sheet, 1
2: mounting stand, 13: deceleration motor, 14: rotary drive shaft, 15: winding member, 16: stopper member, 17:
Take-up reel, 18: body plate member, 19: support member, 2
0: output shaft, 21: V pulley, 22: support base, 23:
V pulley, 24: V belt, 25, 26: bearing, 27:
Internal thread, 28: key, 29: core material, 30: first
Circular side plate part, 31: disk part, 32: circular reinforcing bar, 33:
Projection, 34: cylindrical portion, 35: auxiliary core material, 36: diameter preventing material, 37: bracket, 38: rotating pin, 39: boss portion, 40: second circular side plate portion, 41: handle, 42: Core material guide portion, 43: through hole, 44: fixed pin member, 44
a: fixing hole, 45: positioning hole, 46: connection hole, 4
7: Flange part, 48: Notch, 49: Sheet winding port, 50: Body, 51, 52: End, 53: Fixed flange piece, 54: Lower flange piece, 55: Upper flange piece,
56: sheet guide portion, 57: tension coil spring (elastic support means), 58: guide bar, 59: buffer flange piece, 60: bolt member

Claims (3)

[Claims] 1. A packing sheet volume reducing machine for compressing and reducing the volume of a packing sheet made of a thin plastic having elasticity and wound around the protected article to protect the protected article, comprising: A rotation drive shaft connected to the means and rotationally driven, and cantilevered on a mounting base; a core material portion mounted on the rotation drive shaft from the front side and winding the packing sheet; and the core core A winding member having a first circular side plate portion provided on a base side of a material portion, a boss portion mounted from the front side of the adhered core material portion, and the first member attached to the boss portion. Combination of a stopper member provided with a second circular side plate portion opposed to a circular side plate portion, and a combination of the winding member and the stopper member having an inner diameter larger than the diameter of the first and second circular side plate portions. Surrounds the take-up reel consisting of Having a flange portion formed on both sides, a body plate member capable of expanding radially outward with a sheet winding port provided in a part in the circumferential direction, and leaving the sheet winding port in a free state, A support member for fixing a part of the body plate member to the mounting base; and a sheet guide portion attached to one of the sheet winding ports elastically supported, so that an impact load is generated when the packing sheet is wound. Packing volume reducing machine having elastic support means for reducing pressure. 2. A packing sheet volume reducing machine according to claim 1, wherein said core material portion is rotatably mounted around a cylindrical portion mounted on said rotary drive shaft and a base portion of said cylindrical portion. A plurality of auxiliary cores provided, and a diameter expansion preventing material provided around the base of the cylindrical portion to prevent the auxiliary core from opening radially outward beyond a position parallel to the cylindrical portion. The stopper member has a core guide portion attached to the tip of the cylindrical portion and holding outer portions of the plurality of auxiliary cores in parallel with the cylindrical portion. Packing sheet volume reduction machine. 3. The packing sheet volume reducing machine according to claim 1, wherein the first and second circular side plates are provided inside.
A packing sheet volume reducing machine, wherein projections for catching the packing sheet to be wound are provided.