JPH02282013A - Packaging device for approximately spherical article to be packaged - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is applicable to approximately spherical coverings such as spherical vegetables such as cabbage, lettuce, or turnips, or approximately spherical fruits and vegetables such as spherical fruits such as apples and tangerines. This invention relates to a device for wrapping a packaged item in a single synthetic resin packaging sheet.

[Prior art and problems to be solved by the invention] As a prior art of a device for packaging approximately spherical items such as lettuce with a packaging sheet such as a synthetic resin film that is approximately square in plan view, Japanese Patent Application Laid-Open No. 63 In Publication No. 33208, a tray that can be moved up and down is provided in a hole-shaped packaging part drilled in the center of the top plate of the device, and a long rodless air cylinder is provided at the top of the top plate. The first gate-shaped frame and the second concave frame, each of which has a holding plate in which the receptacle in the hole-shaped packaging part is moved downward by an air cylinder toward the upper surface of the dish, are provided so as to intersect at right angles in a plan view; At one end of the first gate-shaped frame, there is provided a paper feed table on which packaging sheets are stacked, and a supply arm attached to the rodless air cylinder is used to feed the packaging sheets on the paper feed table one by one. It is configured to reciprocate so as to supply the upper surface of the packaging section, and furthermore, a pair of clamping means for clamping a pair of opposing corners of the rectangular packaging sheet is provided on the upper surface of the top plate. The approximately spherical shape is provided along the longitudinal direction of the frame and moved toward each other in a horizontal manner toward the packaging section, and is placed on the center part of the packaging sheet by the pressing plate at the same time as the pair of clamping means moves toward each other. Pressing the upper surface of the object to be packaged, the receiver is lowered below the top plate together with the plate, and a pair of clamping bodies provided on the lower surface side of the top plate are configured to approach the outer surface of the object to be packaged, At the lowered position, the pair of clamping bodies are folded upward so that the corner of the packaging sheet that is 90 degrees away from the clamped corner is raised up, and the pair of clamping bodies A pair of slide plates configured to move toward each other in the same direction as both of the clamping bodies are provided on the upper top plate, and the pair of slide plates move the pair of corners of the free ends of the packaged items. A twisting means for folding the upper surface and further gathering and twisting the pair of corners that have been released from the pinching by the pair of pinching means,
An apparatus has been proposed in which the receivers are provided so as to face each other at radially outer positions of the plate so as to move toward and away from each other, and the receiver is configured to rotate the plate around a vertical axis.

In this prior art, above the hole-shaped packaging part on the top plate, there is a first paper feeder provided with a paper feed means for supplying the packaging sheet.
A gate-shaped frame and a second gate-shaped frame provided with a means for raising and lowering a presser plate for pushing the article to be packaged into the packaging section are disposed in a perpendicularly intersecting shape in a plan view, and the biconcave frame is fixed in position. Therefore, when a worker places a packaged item in the packaging section or takes out a packaged item after wrapping from the packaging section, the worker must insert and remove the packaged item from between the double-concave frame, which takes up work space. The disadvantage was that it was narrow and difficult to take in and take out items.

In particular, since two gate-shaped frames are installed orthogonally, one frame must be shorter than the other, and when the packaging sheet is sent to the packaging department, the wide side of the packaging sheet must be Since it is preferable to slide sideways so that the paper is substantially parallel to the top plate, the height of the first concave frame equipped with this paper feeding means is reduced. Therefore, the height space above the packaging section is limited by the lower frame, which poses a problem in that it becomes difficult to load and unload large items to be packaged.

The present invention aims to eliminate the drawbacks and inconveniences of these conventional techniques.

[Means to solve the problem]

In order to achieve this object, the present invention provides a support plate provided with a hole-shaped packaging portion into which a rectangular synthetic resin packaging sheet and a generally spherical packaged object placed approximately in the center of the upper surface of the packaging sheet are pushed. , a substantially spherical shape comprising a packaging mechanism for covering the object to be packaged from below with a packaging sheet, and for causing at least a pair of opposing corners of the covered packaging sheet to protrude upward from the support plate; In the apparatus for packaging objects to be packaged, a moving means including a presser for pushing the object to be packaged into a hole-shaped packaging section and a twisting means for twisting the pair of corners of the packaging sheet is moved above the support plate. It is arranged so that it can freely move toward and away from the packaging section in the horizontal direction.

[Action/effect of the invention]

According to this configuration, when supplying a packaging sheet and an object to be packaged to a hole-shaped packaging portion on a support plate of the device, the moving means that can be moved horizontally on the support plate is moved to a side far from the packaging portion. The packaging sheet is moved toward the packaging section to secure a free working space on the packaging section, and the packaging sheet is laid on the packaging section manually or by a supply means.

Next, the object to be packaged is placed approximately in the center of the packaging sheet, and then the moving means is moved and the upper surface of the object to be packaged is pushed down using a presser provided on the moving means, so that the upper surface of the object to be packaged is pushed down below the support plate of the packaging section. Press the receiver against the stand.

Thereafter, the outer surface of the packaged object is covered from below with a packaging sheet by a wrapping mechanism provided below the support plate, and at least a pair of opposing corners of the covered packaging sheet are positioned above the support plate. Make it stand out.

During this time, the pressing body is pulled up, and then the moving means is moved laterally so that the twisting means is above the packaging part,
At that position, the twisting means is operated to twist the pair of upwardly facing corners together, and when the twisting work is completed, the moving means is shifted laterally and moved into the space above the packaging part. Leave it blank.

As described above, according to the present invention, the moving means including the presser body that presses the packaged item downward and the twisting means that twists the pair of corners of the packaging sheet is moved on the support plate in the packaging device. Since it is configured to be horizontally movable in the direction toward and away from the packaging section, the moving means is moved from the packaging section only when the object to be packaged is pushed into the packaging section along with the packaging sheet or when a pair of corners of the packaging sheet are twisted. The worker only needs to move the packaging sheet upward, and the worker does not have to do manual work at the packaging section, such as laying a packaging sheet, placing the packaged item on the packaging sheet, and removing the packaged item after wrapping. This has the excellent effect of making it easy to secure the space required for execution.

Further, when the work of pushing the object to be packaged or the work of twisting the pair of corners, the height of the moving means can be configured to be short so that these means are located at a low position relative to the packaging part. This also has the effect of reducing the height of the device and making it more compact.

〔Example〕

Next, an embodiment in which the present invention is applied to a device for packaging substantially spherical vegetables such as cabbage, lettuce, or turnips will be described.

The support plate 3 stretched over the main body frame 2 of the packaging device 1 is used to place packaging sheets A, such as synthetic resin films, on which approximately spherical objects C to be packaged are to be wrapped one by one. , approximately in the center of the support plate 3 is a hole-shaped packaging section 4 into which the packaging sheet A carrying the object to be packaged C can fall.
This is provided.

In the main body frame 2 below the hole-shaped packaging part 4, there is a stand 5 which can move up and down in the packaging part 4, and the supports are arranged radially outward from the stand 5 in a plan view. A plurality of pairs of holding members 6A to 6D configured to squeeze the packaging sheet 1-A toward the outer surface of the packaged object, and a packaging sheet A.
A folding means 7 for folding one pair of corners Al and A2 of two pairs of opposing corners in the upper surface of the packaged object C, and a folding means 7 for folding one pair of corners Al and A2 of the other pair of corners A3. A packaging mechanism is provided which includes gathering means 8 for gathering the A4 pieces on the upper surface side of the object C to be packaged.

Reference numeral 9 denotes a presser body for pushing the packaged object C placed on the packaging sheet A from above into the lower part of the packaging section 4;
0 is the gathered corner A3. A twisting means for twisting A4, the twisting means 10 and the presser body 9 move linearly in the horizontal direction so as to approach or separate from the packaging section 4 on the support plate 3 on the main body frame 2. It is equipped with a possible transportation means 11.

The moving means 11 in this embodiment consists of a concave frame body 13 with a downward U-shaped cross section that can move along a pair of rails 12.12 disposed on both left and right sides of the upper surface of the support plate 3. The roller 14 is driven by a drive motor 15.

Further, as can be understood from FIGS. 1 and 2, the presser body 9 and the twisting means 10 on the concave frame body 13 that can move along the rail 12 are arranged in the movement direction of the portal frame body 13 in a plan view. If they are placed at an appropriate distance (L) in front and behind, and moved forward or backward by the distance (L),
The presser body 9 or the twisting means 10 is configured to overlap the hole-shaped packaging portion 4 in a plan view.

The elevating shaft 16 of the presser body 9 is moved up and down by a drive motor 17 that drives a pinion that engages with a rack formed with gears on its negative side. A cushion material 1 such as a sponge is attached to the lower surface of the presser body 9 to prevent the surface from being damaged when pressing the upper surface of the soft packaged object C.
8 is stretched, and the presser body 9 when lowered holds the packaged object C.
Press the upper surface of the packaging sheet C and push it downward through the hole-shaped packaging portion 4 in the support plate 3, and use the presser body 9 and the support 5, which will be described later, to hold the packaged item C in a lowered position. .

The twisting means 10 provided adjacent to the presser body 9 in the gate-shaped frame body 13 have their base ends movable up and down on the brackets 1-19 having a downward U-shaped cross section on the lower surface of the upper plate 13a. Shaft 20 supported - pair of scissors 21.21
Consists of.

The upper end of the cylindrical shaft 22 that is attached to the upper surface of the bracket 19 is rotatably suspended from a boss 23 that is attached to the lower surface of the upper plate 13a of the concave frame body 13 via a bearing 24. is configured to be rotated in a predetermined right or left direction by a rotation drive motor 25 provided on the concave frame body 13, its shaft 25a, and a gear pair 26, 27 attached to the outer periphery of the cylinder shaft 22.

As shown in FIGS. 4 to 6, the pair of scissor members 21.21 each have horizontally elongated clamping pieces 28 and 28 at their lower ends, and a long groove bored in the middle of both scissor members 21.21. 29 is suspended so as to be moved up and down by a hanging support 31 having a downwardly U-shaped cross section and an elevating shaft 32, and the elevating shaft 32 is connected to a rack portion and a concave molded on the side surface thereof. Lifting drive motor 33 attached to the upper plate 13a of the frame body 13
It is driven up and down via a pinion, and is designated by the symbol 34.
is a spring that urges the suspension member 31 downward.

With this configuration, when the lifting shaft 32 is placed in the raised position as shown by the solid line in FIG. , the lower end clamping pieces 28.28 of both scissors members 21.21 are largely separated by rotation around the base end shaft 2020. On the contrary, when the lifting shaft 32 is lowered, the clamping pieces 28.28 at both lower ends of the scissor members 21.21 narrow toward each other (see the dashed-dotted line in FIG. 4).
As will be described later, 3A4 can be held between a pair of corners of the packaging sheet A, and in this sandwiched state, the rotation drive motor 2
If the bracket 19 is horizontally rotated through the pair of corners A3. You can twist (twist) A4 sheets together.

Next, the packaging mechanism disposed below the support plate 3 will be explained.

As shown in FIGS. 7 and 9, the shaft portion 5a of the support base 5 is vertically slidably fitted into a cylinder support shaft 36 whose lower end is fixed to the main body frame 2. Shaft 5 at the top
The cylindrical bracket 37, which is slidably fitted onto a, and the receiver are biased upward by a biasing spring 38, which is mounted between the lower surface of the base 5, and the shaft portion 5a. A stopper piece 39 at the lower end of the receiver limits the height of the rise of the platform 5.

The plurality of pairs of holding members 6 each have their lower ends connected to the tube bracket 37 via springs 40, and the receivers extend diagonally upward from below the table 5 and are arranged radially.

They are arranged radially at appropriate intervals along the periphery of the hole-shaped packaging part 4 on the lower surface side of the support plate 3, and protrude in the radial direction at different times (in the embodiment). 4
The upper ends of each of the holding members 6 are connected to the horizontal drive bodies 51, 52, 53, and 54 of the above-mentioned type in a flexible manner.

Each holding member 6 is formed by drawing the packaging sheet A along the outer peripheral surface of the object to be packaged by connecting the upper and lower ends of the plurality of connecting pieces 42 with pins 43 and arranging them in a vertical line. When doing so, it has a multi-jointed structure that can be bent freely along the approximately spherical outer peripheral surface of the packaged object C, and a spring 44 connected between an appropriate number of connecting pieces 42, 42 and the back surface Then, the adjacent connecting pieces 42 are biased in a linearly extending direction, and the adjacent side surfaces of the radially arranged holding members 6 are connected in an annular manner by the spring 45, so that the adjacent holding members 6 are The configuration is such that the arrangement is not biased.

Note that reference numerals 46 and 47 are cushioning materials such as sponges that prevent the surface of the soft object C from being damaged when the connection piece 42 of the holding member 6 comes into contact with the surface of the object C.

In the embodiment, the holding members 6 consist of eight pieces (four pairs) (
In order to clarify the arrangement relationship, subscripts A to D are added below). As shown in FIGS. 11 and 12, the four horizontal drive bodies 51 drive the upper ends of the four holding members 6A arranged at 90 degrees toward the upper surface of the object to be packaged. The rank portion 50 formed on the side surface of each horizontal drive body 51 is engaged with the pinion 55 provided in the guide rail 48, 49, and the four positions are A chain sprocket 57 attached to each drive shaft 56 of a pinion 55 is wound with a chain 58 as shown in FIG. 10, and four horizontal drive bodies 51 are moved in and out at the same time by one drive motor M1. It is.

Among the eight holding members 6, holding members 6B and 6C
and a pair of holding members 6D arranged 90 degrees apart from the pair of holding members 6B and 6C.

6D indicates four corners Al of packaging sheet A, A2°A3.
These holding members start operating later in time than the holding member 6A that holds the four sides of the packaging sheet A. The holding members 6D, 6D are configured to start operating later than the holding members 6B, 6C.

Since the holding members 6B and 6C correspond to the location where the corner folding means 7 described later is located, the two wheels of both holding members 6B and 6C are moved toward the upper surface of the object C. The horizontal drive bodies 52, 53 are driven by separate drive motors M2. Activate with M3.

In addition, in order to simultaneously operate a pair of holding members 6D, 6D corresponding to the location of the corner gathering means 8, which will be described later, one drive motor M4, a chain sprocket 63, an idler chain sprocket 64, 64, and a chain 65 are used.
(separate drive motors may also be used if necessary).

Next, the structure of the horizontal operating bodies 52 to 54 will be explained.
As shown in FIGS. 13 to 17, a rack portion 68 formed on one side of the horizontal actuating bodies 52 to 54 and the above-mentioned upper and lower guide rails 66 and 67 are fitted to be movable forward and backward relative to the pair of upper and lower guide rails 66 and 67. Pinion 69 inserted into rail 66, 67
and the pinion 69 is connected to the aforementioned drive motor M2.
~ Each horizontal actuating body 52 ~ by driving in forward and reverse rotation with M4 etc.
54 is moved forward and backward, and the packaging sheet A is drawn and formed along the outer circumferential surface of the object to be packaged C using a holding member attached to the tip of each of the horizontal operating bodies 52 to 54.

The folding means 7 is provided so as to be interlocked with the movement of the horizontal operating bodies 52 and 53, which are provided to move forward and backward relative to each other at the opposing positions.

That is, an idler pinion 71 is supported by a shaft 72 in a space 70 that communicates with the upper and lower middle portions of the horizontal operating bodies 52 and 53 in the longitudinal direction. Movable rack bodies 74, 7 are meshed with the fixed rack 73, while the upper tooth surface of the idler pinion 71 is slidably inserted into both the upper guide rail 66 and the horizontal operating body 52 or 53.
4, thereby creating a so-called double-speed movement mechanism in which the movable rack body 74 can move forward or backward at double the speed of the forward motion of the horizontal operating body.

At the opposite ends of the removable rank bodies 74.74 corresponding to the horizontal actuating bodies 52 and 53, flat pressing plates 75.76 are protruded at different vertical height positions. The horizontal operating body 52 corresponding to the holding plate 75 in the upper position is projected first, and the horizontal operating body 53 corresponding to the holding plate 76 in the upper position is projected later.

Similarly, the shifting means 8 should be provided at a location that intersects with the folding means 7 at a 90 degree angle in plan view, and is a pair of horizontal actuating bodies provided to move forward and backward relative to each other at opposing positions. 54. It is provided so as to be linked to the movement of 54, and the movable rack body 7 relative to the rain horizontal operating body 54
4 is attached in the same manner as the above-mentioned folding means 7, and flat fork-shaped gathering plates 77 and 78 are installed at the opposite ends of the removable rank body 74 at different vertical height positions. It makes it stand out.

A support rod 60 connected to the upper end of the holding members 6A to 6D is connected to the front ends of the horizontal drive bodies 51 to 54 so as to be movable forward and backward, and is biased to protrude by a spring 61.
54 acts as a cushion when the object C is held in place.

Note that corner portions Al, A2. A3゜A4 to support plate 3
The four holding rollers 80 are attached to the upper surface of the support plate 3 via spring rods 81 or the like so as to be able to swing up and down. Preferably, it is associated with a drive means such as a solenoid.

With this configuration, the synthetic resin film fed out by the packaging sheet supply device (not shown) provided on one side of the main body frame 2 of the packaging device 1 is cut into a substantially square shape in plan view using a cutter means, and is then separated into packaging sheets A. , the substantially central portion of the packaging sheet A is placed at a location on the support plate 3 that covers the hole-shaped packaging portion 4 (see the dotted chain line in FIG. 2).

In this case, the moving means 11 including the presser body 9 and the twisting means 10 is moved laterally from the four packaging parts so as not to interfere with the arrangement work of the packaging sheet A.

Next, an object to be packaged C such as lettuce is placed on approximately the center of the packaging sheet A, and the moving means 11 is moved so that the presser body 9 is positioned above the hole-shaped packaging part 4. Then, the lifting drive motor 17 is turned on to lower the presser body 9 as shown in FIG. 18, thereby pushing the packaged object C and the packaging sheet A downward from the packaging section 4.

In this state, as shown in FIG.
The upper surface of the packaged object C is pressed by a presser body 9 and positioned below the support plate 3. At this time, the lower ends of the eight holding members 6A to 6D are located below the receiver 5, and the eight holding members 68 to 6
Since D is arranged in a substantially conical shape so as to extend radially outward and diagonally upward, each side of the packaging sheet A and the packaged object C cannot protrude outward from the eight holding members 6A to 6D. do not have.

Next, as shown in FIGS. 10 and 19, the four holding members 6A are placed on the outer peripheral surface of the packaged object C through the packaging sheet A so as to squeeze up the four sides of the packaging sheet A other than the corners. approach towards. For that purpose, drive motor Ml
By turning ON, the four horizontal actuating bodies 51 are simultaneously operated to protrude toward the upper surface of the packaged object C via the chain 58 and the chain sprocket 57.

The lower ends of the four holding members 6A are located below the receiver 5, and each of the four holding members 6A connects the connecting pieces 42 to the bins 43 to form a multi-jointed structure that can be bent vertically. Therefore, as the upper end of the holding member 6A approaches the upper surface of the object C, it contacts the spherical surface of the object C in order from the connecting piece 42 at the lower position. The wrapping sheet can be formed so as to be squeezed upward from the surface side of the lower half of the object to be packaged, and the packaging sheet does not become loose on the lower half side of the object to be packaged.

Next, the presser body 9 is raised and the moving means 11 is driven so that the lateral twisting means 10 of the presser body 9 is positioned above the packaging section 4.

Substantially parallel to the above-mentioned work, the four holding members 6A
The wrapping members 6B and 6C facing each other on the sides inclined at 45 degrees in plan view are brought closer toward the packaged object C, and the packaging sheet A is drawn in the same manner as described above.

At this time, a packaging sheet) A
A flat holding plate 75, 76 which is a folding means 7 for folding the corner parts At and A2 on the upper surface side of the packaged object C.
are provided at different height positions, so in order to first fold the corner A1 on the upper surface of the packaged object C using the pressing plate 75 at the lower position, first move the corresponding horizontal operating body 52 forward. Then press the other corner A2 with the holding plate 76 at a high position.
The other horizontal actuating body 53 starts moving forward in order to fold it above the corner A1 (see FIG. 20).

And drive motor M2. Horizontal actuating body 52 at a position facing each other via pinion 69 and rack portion 68 at M3.
53 by a predetermined distance (Hl), the upper tooth surface of the idler pinion 71 rotating via the fixed rack 73 due to the forward motion causes the movable rack body 74 to move at a speed twice the forward speed of the horizontal operating body 52, etc. The flat holding plates 75, 76 attached to the tips of these movable rack bodies 74, 74 are made to protrude by a forward distance (H2) that is twice the forward distance (Hl) of each horizontal operating body. , can be positioned on the upper surface side of the packaged object C in a vertically intersecting manner.

Next, a pair of holding members 6D facing each other on sides inclined by 90 degrees from the folding means 7 in plan view.

6D approaches the outer surface of the object C, the pair of horizontal actuators 54 and 54 are driven by the drive motor M4, and the multi-jointed holding member 6D moves the packaging sheet A as described above. It is drawn and formed along the spherical surface of the packaged object C.

The shifting means 8, which is interlocked with the forward movement of the pair of horizontal operating bodies 54, 54, consists of a pair of movable rack bodies 74, 74 facing each other and a fork-like structure attached to their tips, similar to the folding means 7. The matching plates 77 and 78 rotate the chain sprockets 63 on the guide rails 66 facing each other via the idler chain sprockets 64 and 64 and the chain 65 using the power of the drive motor M4, thereby simultaneously driving the horizontal drive bodies 54 and 54. When you move forward to
A movable rack body 74 that moves forward at twice the speed of its advance distance.
74 at the corner A3.74 of the packaging sheet A. It can be made to stand up with A4 paper in between (see Figures 21 and 22).

In this way, one of the opposing corners Al and A2 of the packaging sheet A is placed on the upper surface side of the object to be packaged C by the pressing plate 75.7.
6, and the other pair of corners A3. The A4 sheets are brought together in a substantially vertical manner by fork-shaped joining plates 77 and 78.

After the twisting means 10 of the moving means 11 moved during this work is positioned above the hole-shaped packaging part 4 of the support plate 3, the lifting drive motor 33 of the twisting means 10 is moved.
is turned ON, the lifting shaft 32 is lowered, and the pair of corner portions A3. A4
After pinching from the outside, corner portions Al, A2. A3. A
In order to release the restraint of 4, four horizontal operating bodies 52°, 53.
54. 54 will be retired from work.

After that, the rotation drive motor 25 is turned on, and the pair of scissor members 21 and 21 are moved together with the bracket 19 onto the lifting shaft 32.
When the packaging sheet A is rotated several times to the right or left around the axis (see FIG. 23), the pair of corners A3 and A4 are twisted together (see FIG. 24), making it difficult for the packaging sheet A to unravel. Particularly when the packaging sheet 1-A is a synthetic resin film having extensibility or adhesion, it is difficult to restore the twisted portion A5 at the corner to its original state.

Next, the lifting shaft 32 is raised to open the pair of scissors 21 and 21 in the twisting means 10, and the moving means 11 is opened.
Move it to the side away from the four packaging parts,
Furthermore, when the other four holding members 6A are retreated to their original positions, the receivers biased upward by the springs 38 automatically move the packaged objects C placed on the stand 5 to the support plate. It will raise it to 3, so all you have to do is take it out.

In addition, as shown in FIG. 25, when the twisted part A5 is manually inserted under the twisted part A5, the twisted part A5 can be held so as not to unravel inadvertently. I can do it.

In this embodiment, the folding means 7 and the shifting means 8 and the plurality of pairs of holding members 6B to 6D are configured to move forward and backward in conjunction with each other. The folding means 7 and the shifting means 8 are arranged at positions that do not overlap with each other in a plan view with respect to the holding members 6B to 6D,
It goes without saying that the folding means 7 and the shifting means 8 may be configured to be moved forward and backward by separate driving means, and in this case as well, the plural pairs of holding members are used to hold the packaged items at different times. It can be configured so that it approaches .

Further, the plurality of pairs of holding members can be variously changed to about 5 pairs, 4 pairs, 3 pairs, or 2 pairs depending on the size of the object to be packaged.

Furthermore, in place of the gate-shaped frame body 12 which is the moving means 11 in the present invention, a support arm is provided horizontally protruding from a horizontally movable column, and the presser body 9 is attached to the support arm.
A horizontal support arm is mounted on a pillar-like column erected as an example of the main body frame 2 so as to be horizontally rotatable about the vertical axis of the column, and a presser body 9 is attached to the support arm. Alternatively, the twisting means may be provided at a location where the hole-shaped packaging portion 4 falls within the horizontal rotation locus of the support arm.

[Brief explanation of drawings]

The drawings show embodiments of the invention, with FIG. 1 being a perspective view of the device;
Fig. 2 is a plan view of the main parts, Fig. 3 is an enlarged sectional view taken along mm in Fig. 2, and Fig. 4 is a bottom view taken from IV-IVVI in Fig. 2.
The figure is a V-V observation plane view of Fig. 4, and Fig. 6 is a Vl- of Fig. 4.
VI bottom view, Figure 7 is an enlarged sectional view taken from ■-■ in Figure 2,
Figure 8 is a 4--■ view of Figure 7, Figure 9 is a perspective view of the holding member, Figure 10 is an enlarged plan view of the main part of Figure 2, and Figure 11 is XI-XI of Figure 7. 12 is a sectional view taken along Xn-x■ in FIG. 11, FIG. 13 is a sectional view taken along xm-xm in FIGS. 10 and 14, and FIG.
-XIV plan view, FIG. 15 is a sectional view taken from XV-XV in Figure 1θ, FIG. 16 is a sectional view taken from FIG. 14 (7) Cross section, No. 18
The figure is an explanatory diagram of the operation of pushing the packaged item together with the packaging sheet into the hole-shaped packaging part, Figure 19 is an explanatory diagram of the state of squeezing the packaging sheet with four holding members, and Figure 20 is an explanatory diagram of the state in which the packaging sheet is squeezed by the folding means. 21 and 22 are explanatory diagrams of the action by the shifting means, FIG. 23 is an explanatory diagram of the action by the twisting means, FIG. 24 is a diagram showing the state in which the twisting action is completed, and FIG. 25
The figure shows a state in which the twisting part is tucked in. 1... Packaging device, 2... Body frame, 3...
・・Support plate, 4・・Packaging section, 5・・・・Support stand, A
...Packaging sheet, At, A2. A3. A4...
Corner, A5... Twisted part, C... Item to be packaged, 6.
6A, 6B. 6C, 6D... Holding member, 7... Folding means, 8... Gathering means, 9... Pressing body, 10
... Twisting means, 13. ... Identical frame, 15.
17... Drive motor, 16.32... Lifting axis,
19... Bracket, 21... Scissors member, 2
8... Holding piece, 30... Operating shaft, 25...
Rotation drive motor, 33... Lifting drive motor, 3
8...Biasing spring, 40.44.45...Spring,
42... Connection piece, 43... Pin, 48, 49.
66.67... Guide rail, 50.68...
Rack part, 51, 52° 53.54...Horizontal operating body, Ml, M2. M3゜M4...% [[J motor, 5
5.69...binion, 70...blank space, 71...
... Idle pinion, 73 ... Fixed rack, 7
4...Moving rack body, 75°76...Press plate, 77.78...Press plate, 80...Press roller. Patent applicant Yanmar Agricultural Machinery Co., Ltd. Patent applicant
Yoka Iron Works Co., Ltd.

Claims (1)

[Claims] (1) The object to be packaged is placed below a support plate provided with a hole-shaped packaging portion into which a rectangular synthetic resin packaging sheet and a substantially spherical object placed approximately in the center of the upper surface are pushed. Packaging of a substantially spherical packaged object, which is covered from below with a packaging sheet and includes a packaging mechanism that causes at least a pair of opposing corners of the covered packaging sheet to protrude upward from a support plate. In the apparatus, a moving means including a pressing body for pushing the object to be packaged into the hole-shaped packaging section and a twisting means for twisting the pair of corners of the packaging sheet is attached to the packaging section above the support plate. A packaging device for a substantially spherical article, characterized in that it is arranged so as to be movable near and far in the horizontal direction.