JP4804793B2 - Top cover mounting method and top cover mounting machine used therefor - Google Patents

Description

  The present invention relates to a method of attaching an upper surface cover for attaching an upper surface cover in order to prevent the upper surface of those items from being soiled by dust when temporarily storing boxed exports or shipments in a warehouse. The present invention also relates to a top cover mounting machine used therefor.

As what covers the upper surface of an article | item with an upper surface cover, the following are known.
The upper end portion of the copying machine placed on the pallet is covered with the upper end portion covering cover, and the locking portions of the plurality of locking members provided on the pallet and the upper end portion covering cover are connected via the tension member. (See Patent Document 1).
Japanese Unexamined Patent Publication No. 2003-182736 (FIGS. 1 and 2)

  However, in the conventional example, the work of covering the upper end portion covering cover and the operation for connecting the locking portion of the locking member and the upper end portion covering cover via the tension member are both labor-intensive operations. There was a necessary drawback.

  In addition, a conveyor is provided to transport the items to be packed, and a sheet supply device is provided on the side of the conveyor to supply a dedicated sheet as a top cover that matches the size of the items to be packed in the horizontal direction. In some cases, an operator supplies a sheet to the upper surface of the packaged article to be mounted.

  However, in such a conventional example, a sheet is supplied and the sheet is wound so as to protrude upward from the side surface of the packaged object to cover the upper surface of the packaged object. However, there was a drawback that required a lot of labor.

The present invention has been made in view of the above points, and the inventions according to claims 1 and 2 are intended to enable a top cover to be mounted with a simple configuration, with less labor and at a low cost, the invention according to claim 3, aims to make the top cover can be attached to easily, according to the invention of claim 4, the top cover mounting machine can be suitably implemented method of the invention according to claim 1 is intended to provide, the invention according to claim 5, intended to provide a top cover mounting machine can be suitably implemented method of the invention according to claim 2, the invention according to claim 6, the upper surface It is intended to make it easy to attach a cover.

In order to achieve the above-described object, the mounting method of the top cover of the invention according to claim 1
The lower end of the sheet holding member that keeps the belt-shaped cover sheet in contact with the predetermined shape is brought close to the outer periphery of the upper surface of the packaged object, and the sheet holding member is vertically above the outer periphery of the packaged object. After being positioned in the packaged object, the packaged part is projected so that a length part of more than half the length corresponding to the shortest length in the horizontal direction of the upper surface of the packaged object protrudes upward from the upper surface of the packaged object The cover sheet supplied from the sheet supply device is wound around the sheet shape retaining member from the side of the object by one or more turns, and then the sheet shape retaining member is displaced to a non-acting position, and the package is packed The cover sheet is supported by the middle part of each of the opposite sides of the object, and the support part is displaced in a direction away from each other in a straight line, and the upper opening of the cover sheet wrapped around the packaged object is closed. Wherein the protruding portion of the cover sheet have covered the upper surface of the object to be packed, then the longitudinal ends of the closed portion of the upper opening of the cover sheet in a straight line so hang from the upper surface of the object to be packed, The cover sheet is cut after the hanging portion is wrapped with the cover sheet .
Here, “to bring the lower end of the sheet-shaped member close to the outer periphery of the upper surface of the packaged object” includes the case where the sheet-shaped member on the side surface of the packaged object is brought into contact with the outer periphery of the upper surface of the packaged object. (The same applies to the following description).

(Action / Effect)
According to the configuration of the mounting method of the upper surface cover of the invention according to claim 1, the lower end of the sheet shape retaining member is brought close to the outer peripheral edge of the upper surface of the package object, and the belt shape is formed from the side surface of the package object to the sheet shape retention member. After the cover sheet is wound and the cover sheet is wound around the package to be packaged one or more times, the shape retaining member is moved to the non-operating position to release the shape retention for the cover sheet, and the top of the cover sheet Close the openings so that they are in a straight line to cover the top surface of the object to be packed, and then hang both ends in the longitudinal direction of the part where the upper opening of the cover sheet is closed in a straight line from the top surface of the object to be packed. The portion can be wrapped with the cover sheet.
Therefore, it is possible to cover the top surface of the object to be packed by wrapping the belt-shaped cover sheet only by using a sheet holding member that can be displaced between the operating position and the non-operating position. It is not necessary to wrap the cover sheet while maintaining the shape of the package to fit the size of the packaged items, and the top cover can be installed with a simple structure with less labor and cost. it can.
Moreover, since the closing operation with respect to the upper opening of the cover sheet can be easily performed, the upper surface cover can be more easily mounted.

In order to achieve the above-described object, the mounting method of the top cover of the invention according to claim 2
The lower end of the sheet holding member that keeps the belt-shaped cover sheet in contact with the predetermined shape is brought close to the outer periphery of the upper surface of the packaged object, and the sheet holding member is vertically above the outer periphery of the packaged object. After being positioned at the top of the package, the length of the top surface of the packaged object is longer than the longest length in the horizontal direction so that the length of the packaged object protrudes upward from the top surface of the packaged object. thereby span from the side to the seat shape-retaining member, wound or around the cover sheet, thereafter, said sheet shape-retaining member is displaced upward from the upper surface of the object to be packed, the said object to be packed in this state The upper portion of the cover sheet is closed by rotating the sheet shape member relatively and twisting the cover sheet to close the upper opening of the cover sheet and displacing the sheet shape member to the non-operating position. Open the edge Side is placed over the outer peripheral edge of the object to be packed by folding so as to outwardly, then, to cut the cover sheet from wrapping the cover sheet to overlap the folded portion of the cover sheet It is a feature .

(Action / Effect)
According to the configuration of the mounting method of the upper surface cover of the invention according to claim 2 , the lower end of the sheet shape retaining member is brought close to the outer peripheral edge of the upper surface of the package object, and the belt shape is formed from the side surface of the package object to the sheet shape retention member. The cover sheet is wrapped around the object to be packed, and then the sheet holding member is displaced above the upper surface of the object to be packed, and the upper opening of the cover sheet is closed by rotating and twisting in this state, and the sheet holding member is closed. The shape member is displaced to the non-operating position to release the shape retention for the cover sheet, the upper edge of the cover sheet is folded back so that the opening side is outward, and the outer periphery of the package is covered. The cover sheet is wrapped around the folded portion of the cover sheet, and the upper surface of the package object can be covered with a protruding portion that protrudes upward from the upper surface of the package object of the cover sheet .
Therefore, it is possible to cover the top surface of the object to be packed by wrapping the belt-shaped cover sheet only by using a sheet holding member that can be displaced between the operating position and the non-operating position. It is not necessary to wrap the cover sheet while maintaining the shape of the package to fit the size of the packaged items, and the top cover can be installed with a simple structure with less labor and cost. it can.
Moreover, since the closing operation with respect to the upper opening of the cover sheet can be easily performed, the upper surface cover can be more easily attached.

In order to achieve the above-described object, the invention according to claim 3
In the mounting method of the upper surface cover according to claim 1 or 2 ,
The cover sheet is a film stretched vertically and horizontally, and is configured to have an adhesive force to the packaged object due to the contraction force of the cover sheet itself.

(Action / Effect)
According to the structure of the mounting method of the upper surface cover of the invention according to claim 3 , the stretched film is used as the cover sheet, and the cover sheet is brought into close contact with the object to be packed by utilizing the contraction force to be restored. Can do.
Therefore, it is not necessary to wind a rope or the like to maintain the state of covering the object to be packed with the cover sheet, it can be easily stopped with a vinyl tape or the like, and the top cover is more easily Can be installed.

Inventions is related to claim 4, in order to achieve as described above purposes,
It is an upper surface cover mounting machine used for the mounting method of the upper surface cover according to claim 1,
A turntable on which the object to be packed is placed so as to be able to drive and rotate around a vertical axis;
A sheet shape-retaining member that is provided so as to be rotatable about a vertical axis around the outer peripheral edge of the packaged object placed on the turntable, and keeps the cover sheet in contact with the predetermined shape. When,
A sheet shape retaining member drive mechanism that displaces the sheet shape retaining member between an acting position that acts on the cover sheet and a non-acting position that does not act;
A sheet supply device for supplying a cover sheet so as to cover the packaged object and the sheet shape retaining member displaced to the working position;
A cutter that cuts the cover sheet supplied from the sheet supply device after covering the object to be packed ;
The sheet retaining member is
A pair of sheet retaining rods provided opposite to each other with the packaged object interposed therebetween;
A first rod driving mechanism for driving and displacing the sheet retaining rod in an opposing direction so as to sandwich the packaged object;
A second rod driving mechanism for driving and displacing the sheet retaining rod between an operating position and a non-operating position;
An intermediate support material that supports the cover sheet at an intermediate portion of each of the opposite sides of the package when the sheet retaining rod is displaced to a non-acting position;
The upper opening of the cover sheet wound around the article to be packed is closed as the first rod driving mechanism is displaced in a direction away from each other .

(Action / Effect)
According to the configuration of the upper surface cover mounting machine of the invention according to claim 4 , by the sheet shape retaining member drive mechanism, the lower end of the sheet shape retaining member is displaced to the operation position so as to be close to the outer periphery of the upper surface of the packaged item, By driving and rotating the turntable, the belt-shaped cover sheet supplied from the sheet supply device is wound from the side of the packaged object to the sheet shape retaining member, and the cover sheet is wound one or more times before the sheet shape retaining member The shape retaining member is displaced to the non-operating position by the drive mechanism to release the shape retention for the cover sheet. At that time, the cover sheet is supported by the intermediate support material, and the intermediate support material is supported by the first rod drive mechanism. Are moved away from each other to close the upper opening of the cover sheet so as to be in a straight line, and the upper part of the cover sheet is opened by lowering and raising the sheet holding member. Causes hang from the upper surface of the object to be packed in the longitudinal direction of the ends of the closed section in a straight line and enveloping portion was the sag in the cover sheet, a strip-shaped cover sheet supplied from the sheet supply apparatus It can cut | disconnect with a cutter and can cover the upper surface of a to-be-packaged object with the protrusion part of the sheet | seat for a cover protruded from the upper surface of the to-be-packaged object.
Therefore, it is possible to provide a top cover mounting machine that can implement the method according to the first aspect of the present invention with a simple configuration, with less labor and at low cost, and that can suitably implement the method according to the first aspect of the present invention.
In addition, since the pair of sheet retaining rods are driven and displaced by the first rod driving mechanism to sandwich the object to be packed, the objects to be packed of different sizes can be used as long as they are not far apart from the distance between the pair of sheet retaining rods. On the other hand, it is possible to provide an upper surface cover mounting machine that can be displaced to the operating position and retain and wind the cover sheet so that it can easily cope with the objects to be packed having different sizes.

In order to achieve the above-described object, the invention according to claim 5
It is an upper surface cover mounting machine used for the mounting method of the upper surface cover according to claim 2,
A turntable on which the object to be packed is placed so as to be able to drive and rotate around a vertical axis;
A sheet shape-retaining member that is provided so as to be rotatable about a vertical axis around the outer peripheral edge of the packaged object placed on the turntable, and keeps the cover sheet in contact with the predetermined shape. When,
A sheet shape retaining member drive mechanism that displaces the sheet shape retaining member between an acting position that acts on the cover sheet and a non-acting position that does not act;
A sheet supply device for supplying a cover sheet so as to cover the packaged object and the sheet shape retaining member displaced to the working position;
A cutter that cuts the cover sheet supplied from the sheet supply device after covering the object to be packed;
The sheet retaining member is
A pair of sheet retaining rods provided opposite to each other with the packaged object interposed therebetween;
A first rod drive mechanism that drives and displaces the sheet retaining rod in an opposing direction so as to sandwich the packaged object ,
By rotating the turntable with the upper end side of the cover sheet held on the lower end side of the sheet retaining rod, the cover sheet wound above the package object is rotated. The protruding portion is twisted to close the upper opening of the cover sheet .

(Action / Effect)
According to the configuration of the upper surface cover mounting machine of the invention according to claim 5 , by the sheet shape retaining member drive mechanism, the lower end of the sheet shape retaining member is displaced to the operating position so as to be close to the outer periphery of the upper surface of the packaged item, By driving and rotating the turntable, a belt-shaped cover sheet supplied from the sheet supply device is wound around the side of the package from the side of the package, and the upper end side of the cover sheet is wound around the sheet shape retaining rod. By rotating the turntable while being held at the lower end side of the cover, the portion of the cover sheet that is wound around the package object is twisted so as to protrude upward from the package object, the upper opening of the cover sheet is closed, and the sheet is closed. The shape retaining member is lowered and the upper edge of the cover sheet is folded back so that the opening side is outward, and is placed on the outer peripheral edge of the package, and the sheet shape retaining member is raised and separated from the cover sheet. Then, by rotating the turntable, the cover sheet is wound so as to overlap the folded portion of the cover sheet, the cover sheet is cut with a cutter, and protrudes above the upper surface of the cover sheet to be packed The upper surface of the article to be packed can be covered with the protruding portion.
Therefore, it is possible to provide a top cover mounting machine that can implement the method according to the second aspect of the present invention in which the top cover is mounted with a simple configuration with less labor and at low cost.
In addition, since the pair of sheet retaining rods are driven and displaced by the first rod driving mechanism to sandwich the object to be packed, the objects to be packed of different sizes can be used as long as they are not far apart from the distance between the pair of sheet retaining rods. On the other hand, it is possible to provide an upper surface cover mounting machine that can be displaced to the operating position and retain and wind the cover sheet so that it can easily cope with the objects to be packed having different sizes.

In order to achieve the above object, the invention according to claim 6 provides:
In the upper surface cover mounting machine according to claim 4 or 5,
The sheet supply device is configured to supply the film fed from the raw roll while being stretched vertically and horizontally.

(Action / Effect)
According to the configuration of the upper surface cover mounting machine of the invention according to claim 6 , as the cover sheet, the film is stretched in the vertical and horizontal directions, and the cover sheet is used by using the contraction force to be restored. Can be adhered to.
Therefore, it is not necessary to wind a rope or the like in order to maintain the state in which the object to be packed is covered with the cover sheet, it can be easily stopped with a vinyl tape, and the top cover can be easily attached. .
In addition, an original fabric roll that is smaller than the width of the cover sheet is sufficient, and the entire body can be configured compactly.

According to the configuration of the mounting method of the upper surface cover of the invention according to claim 1, the lower end of the sheet shape retaining member is brought close to the outer peripheral edge of the upper surface of the package object, and the belt shape is formed from the side surface of the package object to the sheet shape retention member. After the cover sheet is wound and the cover sheet is wound around the package to be packaged one or more times, the shape retaining member is moved to the non-operating position to release the shape retention for the cover sheet, and the top of the cover sheet Close the openings so that they are in a straight line to cover the top surface of the object to be packed, and then hang both ends in the longitudinal direction of the part where the upper opening of the cover sheet is closed in a straight line from the top surface of the object to be packed. The portion can be wrapped with the cover sheet.
Therefore, it is possible to cover the top surface of the object to be packed by wrapping the belt-shaped cover sheet only by using a sheet holding member that can be displaced between the operating position and the non-operating position. It is not necessary to wrap the cover sheet while maintaining the shape of the package to fit the size of the packaged items, and the top cover can be installed with a simple structure with less labor and cost. it can.
Moreover, since the closing operation with respect to the upper opening of the cover sheet can be easily performed, the upper surface cover can be more easily mounted.

  Next, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a partially cutaway entire front view showing an embodiment 1 of an upper surface cover mounting machine according to the present invention, FIG. 2 is an overall plan view, and a turntable 2 on which an article to be packed 1 is placed is a vertical axis. It is provided to be rotatable around the center. The turntable 2 and the first electric motor 3 are interlocked and connected via a belt type transmission mechanism 4.

  A first support bracket 6 having a rectangular tube shape is provided on the first guide column 5 so as to be movable up and down, and an angle-shaped support arm 7 is integrally provided on the first support bracket 6. A second electric motor 8 capable of forward / reverse driving as a sheet shape retaining member driving mechanism is provided on the upper end side of the first guide column 5. A first chain case 9 is provided adjacent to the first guide column 5, a main sprocket 10 is provided on the upper end side of the first chain case 9, and a driven sprocket 11 is provided on the lower end side.

  The main sprocket 10 and the second electric motor 8 are interlocked and connected via a bevel gear mechanism (not shown) and a speed reduction mechanism (not shown), and the chain 12 is wound around the main sprocket 10 and the driven sprocket 11. At the same time, the first support bracket 6 is coupled to the chain 12, and the support arm 7 (sheet retaining member 15 to be described later) is driven up and down to be displaced between an operating position that acts on the cover sheet S and a non-acting position that does not act. It is configured as follows.

  As shown in the cross-sectional view of the main part of FIG. 3, guide rollers 13 that rotate in contact with the outer surface of the first guide column 5 are provided on the four surfaces of the first support bracket 6, respectively. Is configured to be able to smoothly drive up and down. Although not shown, limit switches are provided at predetermined positions on the upper and lower sides of the outer surface of the first chain case 9 so that the second electric motor 8 is stopped while the support arm 7 is raised and lowered to the set position. It is configured.

A sheet shape-retaining member 15 is provided at the tip of the support arm 7 so as to be rotatable around a vertical axis through a rotary joint 14.
The sheet shape retaining member 15 is configured as follows.
That is, the rotary member 16 is provided with first and second air cylinders 18 and 19 as first rod drive mechanisms via a link mechanism 17, and the first and second cylinders of the air cylinders 18 and 19 respectively. Third and fourth air cylinders 22 and 23 as second rod driving mechanisms are provided at the tips of the rods 20 and 21.

  First and second support members 24 and 25 are provided in the third and fourth air cylinders 22 and 23, respectively, and as shown in the side view of the sheet shape retaining member in FIG. First and second sheet retaining rods 26 and 27 are provided at both lower ends of the members 24 and 25 so as to be swingable around a horizontal axis, and the first and second air cylinders 18 and 19 are shortened. By doing so, it is displaced to an operable position (see FIG. 4B), and the article 1 is sandwiched between the first and second sheet retaining rods 26 and 27, while the first and second air cylinders The first and second sheet retaining rods 26 and 27 are moved away from each other in the opposing direction by being displaced to a non-operating position by extending 18 and 19 [see (a) of FIG. 4]. .

  As shown in the front view of the sheet shape retaining member in FIG. 5, the first and second sheet shape retaining rods 26 and 27 and the tip ends of the cylinder rods of the third and fourth air cylinders 22 and 23, respectively. The first and second sheet retaining rods 26 are connected via the link 28 and are displaced to the working position by shortening the third and fourth air cylinders 22 and 23 [see FIG. 5A]. 27, the package sheet 1 to be wound is held by sandwiching the article 1 to be packed, while the third and fourth air cylinders 22 and 23 are extended to be displaced to the non-operating position [FIG. (Refer to (b)], the shape retention for the wound cover sheet S is released.

  As shown in the sectional view of the rotary joint in FIG. 6 and the pneumatic circuit diagram in FIG. 7, the first arm side member 29 and the rotating member 16 at the tip of the support arm 7 are always in communication with each other regardless of the rotation. Second, third and fourth ventilation paths R1, R2, R3 and R4 are formed.

  As shown in FIG. 7, the compressor 30 and the first and second air cylinders 18 and 19 include an electromagnetically operated first two-position switching valve 31, the first and second air passages R1 and R2, and the air. The compressor 30 and the third and fourth air cylinders 22 and 23 are connected via a pipe (not shown in the figure), while the electromagnetically operated second two-position switching valve 32 and the third and fourth air cylinders 22 and 23 are connected. 4 are connected to the air passages R3 and R4 through an air pipe (not shown). In the figure, reference numeral 33 denotes a relief valve that allows air above the set pressure to escape.

When the first and second sheet retaining rods 26 and 27 are displaced to the non-operating positions on the lower sides of the third and fourth air cylinders 22 and 23, the opposite sides of the article 1 to be packed are An intermediate support member 34 that supports the cover sheet S at the intermediate portion is provided.
As a result, the first and second air cylinders 18 and 19 are extended and displaced in a direction away from each other, so that the upper opening of the cover sheet S wound around the article 1 is closed in a straight line. Has been.

  On the first electric motor 3 side, a second guide column 35 is provided, and a square tube-shaped second support bracket 36 is provided on the second guide column 35 so as to be movable up and down. 36 is integrally provided with a sheet feeding device 37. A third electric motor 38 that can be driven forward and backward is provided on the upper end side of the second guide column 35. A second chain case 39 is provided adjacent to the second guide column 35, a main sprocket (not shown) is provided on the upper end side of the chain case 39, and a driven sprocket (not shown) is provided on the lower end side. Is provided.

  A main sprocket (not shown) and the third electric motor 38 are interlocked and connected via a bevel gear mechanism (not shown) and a speed reduction mechanism (not shown), and the main sprocket (not shown) and the driven sprocket (not shown). A chain (not shown) is wound around the chain (not shown) and a second support bracket 36 is connected to the chain (not shown) so that the sheet supply device 37 is driven up and down. These configurations are the same as the configurations for driving up and down the sheet shape retaining member 15 described above.

  As shown in the side view of the main part of FIG. 8, the sheet supply device 37 is supplied from a rotation shaft 40 that rotatably holds an original fabric roll 39 in which a belt-like film is wound in a roll shape, and an original fabric roll 39. A pair of stretching rollers 41, 41 having an uneven surface for stretching the film, a fourth electric motor 42 for driving and rotating the stretching rollers 41, 41, and a film stretched by the stretching rollers 41, 41 in the width direction. An expansion roller 44 having a frustoconical roller 43 provided in an arc shape is provided so as to be expanded and supplied as a cover sheet S.

  A cutter arm 46 holding a rodless cylinder 47 that moves up and down the cutter 45 is provided in the vicinity of the sheet supply device 37 so as to be swingable within a predetermined angle range via a fifth air cylinder 48. Thereby, the cutter 45 is displaced to the position for cutting the cover sheet S by the fifth air cylinder 48, and then the cutter 45 is raised by the rodless cylinder 47 so that the cover sheet S can be cut. It is configured.

Next, the mounting operation of the top cover according to the first embodiment will be described.
First, as shown in the overall front view for explaining the operation of FIG. 9, after placing the article 1 on the turntable 2, the front edge of the cover sheet S from the sheet supply device 37 is connected to the turntable 2. Stop by sandwiching it with the item to be packed 1.

  Thereafter, the sheet shape retaining member 15 is lowered, and as shown in an overall plan view for explaining the operation of FIG. 10 and an overall front view for explaining the operation of FIG. 11, the first and second air cylinders 18, 19 is shortened, the first and second support members 24 and 25 are displaced in a direction approaching each other, and the article 1 is sandwiched between the first and second sheet retaining rods 26 and 27.

  Next, as shown in the entire front view for explaining the operation of FIG. 12, while rotating the turntable 2 and raising the sheet supply device 37, it corresponds to the shortest length in the horizontal direction of the upper surface of the article 1 to be packed. The cover sheet S is wound from the side surface of the packaged object 1 over the sheet shape retaining member 15 so that a length part of more than half of the length to be projected upward from the upper surface of the packaged object 1 After winding up to the uppermost part of the shape-retaining member 15, as shown in the overall front view for explaining the operation of FIG. 13, while rotating the turntable 2 and lowering the sheet supply device 37, Stop at the corresponding position.

  Next, as shown in the overall front view for explaining the operation in FIG. 14, the sheet shape retaining member 15 is raised so that the first and second sheet shape retaining rods 26 and 27 are positioned above the article to be packed 1. It is displaced to.

  Thereafter, as shown in an overall plan view for explaining the operation of FIG. 15A and an overall front view for explaining the operation of FIG. 15B, the third and fourth air cylinders 22 and 23 are provided. The first and second sheet retaining rods 26 and 27 are swung to the non-operating position and extended, and the first and second air cylinders 18 and 19 are extended to face each other of the article 1 to be packed. The cover sheet S is supported by the intermediate support member 34 at the middle part of the side, and the support parts are displaced in a direction away from each other in a straight line so that the upper opening of the cover sheet S wound around the packaged object 1 is straight. Close to.

  Thereafter, as shown in the entire front view for explaining the operation in FIG. 16, the sheet shape retaining member 15 is lowered, and both ends in the longitudinal direction of the portion where the upper opening of the cover sheet S is closed in a straight line are to be packed. It hangs down from the upper surface of 1. Thereafter, as shown in the overall front view for explaining the operation of FIG. 17, the sheet shape retaining member 15 is raised and displaced to a position where it does not act on the packaged object 1, and then the sheet supply device 37 is raised. The turntable 2 is rotated, and the part where the cover sheet S is suspended is wrapped with the cover sheet S.

Thereafter, as shown in the entire front view for explaining the operation in FIG. 18, the rotation of the turntable 2 is stopped after the sheet feeding device 37 is lowered to the vicinity of the lowermost portion. Then, thereafter, as shown in an overall plan view for explaining the operation of FIG. 19, the cutter arm 46 is swung to displace the cutter 45 to a position below the cover sheet S. Thereafter, as shown in the entire front view for explaining the operation of FIG. 20, the rodless cylinder 47 is operated to raise the cutter 45 and cut the cover sheet S.
With the above operation, the upper surface of the object to be packed 1 is covered with the protruding portion of the cover sheet S protruding above the upper surface of the object 1 to be packed, and the mounting of the upper surface cover is completed.

FIG. 21 is an overall front view showing a second embodiment of the top cover mounting machine according to the present invention, and the differences from the first embodiment are as follows.
That is, in the sheet shape retaining member 15, the third and fourth air cylinders 22 and 23, the link 28, and the intermediate support member 34 are not provided, and the first and second sheet shape retaining rods 26 and 27 are swung. The both ends of the first and second support members 24 and 25 are configured as sheet retaining rods. Although not shown, for example, while the solenoid is de-energized, the support arm 7 is fixed at a non-operating position by a spring inactive force. An electromagnetically operated brake configured to prevent the rotation is provided, and is configured to be switchable between a state in which the rotating member 16 is rotated and a state in which the rotation is prevented and fixed. Other configurations are the same as those of the first embodiment.

  As a result, first, the first and second air cylinders 18 and 19 are shortened, and the sheet retaining member 15 is displaced to the working position close to the article 1 to be packed. It is sandwiched between the support members 24 and 25. Next, the cover sheet S is placed on the package 1 so that a length portion equal to or longer than the longest horizontal length of the upper surface of the package 1 protrudes upward from the upper surface of the package 1. And the first and second support members 24 and 25 of the sheet shape retaining member 15 are wound around one or more rounds, and then the sheet shape retaining member 15 is raised as shown in the overall front view for explaining the operation of FIG. The first and second support members 24 and 25 are separated from the packaged object 1 so as to act only on the cover sheet S. At this time, the sheet supply device 37 moves down to a position where the upper end of the sheet supply device 37 is the upper surface of the packaged object 1 (see FIG. 23).

  Thereafter, the sheet shape retaining member 15 is prevented from rotating and fixed by a brake, and the upper end side of the cover sheet S wound around the article 1 is placed on the sheet shape retaining member 15, that is, the first and first shapes. The rotating base 2 is rotated while being held on the lower end side of the two support members 24, 25, and as shown in the entire front view for explaining the operation of FIG. The protruding part is twisted to close the upper opening of the cover sheet S.

  Thereafter, as shown in the entire front view for explaining the operation of FIG. 24, the sheet holding member 15 is lowered and the cover sheet S held on the lower end sides of the first and second support members 24, 25 is moved. The upper end edge is folded back so that the opening side is outward, and is put on the outer peripheral edge of the article 1 to be packed. This folding may be performed manually.

  Thereafter, as shown in the entire front view for explaining the operation of FIG. 25, the sheet holding member 15 is lifted and separated from the cover sheet S, and then the turntable 2 is rotated so that the cover sheet S is folded back. The cover sheet S is wound so as to overlap the part, and finally the cutter 45 is raised as in the first embodiment to cut the cover sheet S, and the cover sheet S is above the upper surface of the article 1 to be packed. The upper portion of the article 1 is covered with the protruding portion protruding to complete the mounting of the upper surface cover.

  In the said Example, the sheet | seat for a structure which extends | stretches a film vertically and horizontally is used as the sheet | seat S for covers, and the sheet | seat S for covers can be closely_contact | adhered to the to-be-packaged goods 1 using the shrinkage force which it is going to restore | restore. At the same time, an original roll 39 that is smaller than the width of the cover sheet S is sufficient, and the entire body can be made compact. However, in the present invention, such a non-stretchable cover sheet S is used. It may be used.

It is a partial notch whole front view which shows Example 1 of the upper surface cover mounting machine which concerns on this invention. 1 is an overall plan view of Example 1. FIG. It is sectional drawing of the principal part. It is a side view of a sheet | seat shape retention member, (a) shows the state displaced to the position which does not act on a to-be-packaged object, (b) shows the state displaced to the position which acts on to-be-packaged object, respectively. It is a front view of a sheet | seat shape retention member, (a) shows the state displaced to the operation position, (b) shows the state displaced to the non-operation position, respectively. It is sectional drawing of a rotary joint. It is a pneumatic circuit diagram. It is a side view which shows a sheet supply apparatus. It is the whole front view with which it uses for operation | movement description. It is a whole top view with which it uses for operation | movement description. It is the whole front view with which it uses for operation | movement description. It is the whole front view with which it uses for operation | movement description. It is the whole front view with which it uses for operation | movement description. It is the whole front view with which it uses for operation | movement description. (A) is an overall plan view for explaining the operation, and (b) is an overall front view for explaining the operation. It is the whole front view with which it uses for operation | movement description. It is the whole front view with which it uses for operation | movement description. It is the whole front view with which it uses for operation | movement description. It is a whole top view with which it uses for operation | movement description. It is the whole front view with which it uses for operation | movement description. FIG. 10 is an overall front view for explaining the operation of the second embodiment. FIG. 10 is an overall front view for explaining the operation of the second embodiment. FIG. 10 is an overall front view for explaining the operation of the second embodiment. FIG. 10 is an overall front view for explaining the operation of the second embodiment. FIG. 10 is an overall front view for explaining the operation of the second embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... To-be-packaged object 2 ... Turntable 8 ... 2nd electric motor (sheet shape retention member drive mechanism)
15 ... sheet shape retaining member 18 ... first air cylinder (first rod drive mechanism)
19: Second air cylinder (first rod drive mechanism)
22 ... Third air cylinder (second rod drive mechanism)
23 ... Fourth air cylinder (second rod drive mechanism)
DESCRIPTION OF SYMBOLS 26 ... 1st sheet shape retaining rod 27 ... 2nd sheet shape retaining rod 34 ... Intermediate support material 37 ... Sheet supply apparatus 39 ... Original fabric roll 45 ... Cutter S ... Sheet for cover

Claims (6)

The lower end of the sheet holding member that keeps the belt-shaped cover sheet in contact with the predetermined shape is brought close to the outer periphery of the upper surface of the packaged object, and the sheet holding member is vertically above the outer periphery of the packaged object. After being positioned in the packaged object, the packaged part is projected so that a length part of more than half the length corresponding to the shortest length in the horizontal direction of the upper surface of the packaged object protrudes upward from the upper surface of the packaged object The cover sheet supplied from the sheet supply device is wound around the sheet shape retaining member from the side of the object by one or more turns, and then the sheet shape retaining member is displaced to a non-acting position, and the package is packed The cover sheet is supported by the middle part of each of the opposite sides of the object, and the support part is displaced in a direction away from each other in a straight line, and the upper opening of the cover sheet wrapped around the packaged object is closed. Wherein the protruding portion of the cover sheet have covered the upper surface of the object to be packed, then the longitudinal ends of the closed portion of the upper opening of the cover sheet in a straight line so hang from the upper surface of the object to be packed, An upper surface cover mounting method comprising: wrapping the hanging portion with the cover sheet and then cutting the cover sheet . The lower end of the sheet holding member that keeps the belt-shaped cover sheet in contact with the predetermined shape is brought close to the outer periphery of the upper surface of the packaged object, and the sheet holding member is vertically above the outer periphery of the packaged object. After being positioned at the top of the package, the length of the top surface of the packaged object is longer than the longest length in the horizontal direction so that the length of the packaged object protrudes upward from the top surface of the packaged object. Wrapping the sheet for covering one or more times from the side surface over the sheet shape retaining member, and then displacing the sheet shape retaining member above the upper surface of the object to be packed, and in that state the object to be packed and the The upper portion of the cover sheet is closed by rotating the sheet shape member relatively and twisting the cover sheet to close the upper opening of the cover sheet and displacing the sheet shape member to the non-operating position. Open the edge Folding the cover sheet so that the side is outward and covering the outer peripheral edge of the package, and then winding the cover sheet so as to overlap the folded portion of the cover sheet, and then cutting the cover sheet. A mounting method of the top cover as a feature . In the mounting method of the upper surface cover according to claim 1 or 2 ,
A method of attaching an upper surface cover , wherein the cover sheet is a film stretched vertically and horizontally and has an adhesion force to the packaged goods due to a contraction force of the cover sheet itself . It is an upper surface cover mounting machine used for the mounting method of the upper surface cover according to claim 1,
A turntable on which the object to be packed is placed so as to be able to drive and rotate around a vertical axis;
A sheet shape-retaining member that is provided so as to be rotatable about a vertical axis around the outer peripheral edge of the packaged object placed on the turntable, and keeps the cover sheet in contact with the predetermined shape. When,
A sheet shape retaining member drive mechanism that displaces the sheet shape retaining member between an acting position that acts on the cover sheet and a non-acting position that does not act;
A sheet supply device for supplying a cover sheet so as to cover the packaged object and the sheet shape retaining member displaced to the working position;
A cutter that cuts the cover sheet supplied from the sheet supply device after covering the object to be packed ;
The sheet retaining member is
A pair of sheet retaining rods provided opposite to each other with the packaged object interposed therebetween;
A first rod driving mechanism for driving and displacing the sheet retaining rod in an opposing direction so as to sandwich the packaged object;
A second rod driving mechanism for driving and displacing the sheet retaining rod between an operating position and a non-operating position;
An intermediate support material that supports the cover sheet at an intermediate portion of each of the opposite sides of the package when the sheet retaining rod is displaced to a non-acting position;
A top cover mounting machine configured to close an upper opening of the cover sheet wound around the package object as the first rod driving mechanism is displaced in a direction away from each other . It is an upper surface cover mounting machine used for the mounting method of the upper surface cover according to claim 2,
A turntable on which the object to be packed is placed so as to be able to drive and rotate around a vertical axis;
A sheet shape-retaining member that is provided so as to be rotatable about a vertical axis around the outer peripheral edge of the packaged object placed on the turntable, and keeps the cover sheet in contact with the predetermined shape. When,
A sheet shape retaining member drive mechanism that displaces the sheet shape retaining member between an acting position that acts on the cover sheet and a non-acting position that does not act;
A sheet supply device for supplying a cover sheet so as to cover the packaged object and the sheet shape retaining member displaced to the working position;
A cutter that cuts the cover sheet supplied from the sheet supply device after covering the object to be packed ;
The sheet retaining member is
A pair of sheet retaining rods provided opposite to each other with the packaged object interposed therebetween;
A first rod drive mechanism that drives and displaces the sheet retaining rod in an opposing direction so as to sandwich the packaged object,
The cover sheet wound around the package object by rotating the turntable with the upper end side of the cover sheet held on the lower end side of the sheet retaining rod member. A top cover mounting machine characterized in that it is configured to twist the protruding part to close the upper opening of the cover sheet . In the upper surface cover mounting machine according to claim 4 or 5,
An upper surface cover mounting machine in which a sheet supply device supplies a film drawn from a raw roll while being stretched vertically and horizontally .

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