JPH05338611A - Packing device - Google Patents

Abstract

PURPOSE:To improve the reliability of functions by providing between a packing table and a supporting table an auxiliary tightening member which wraps a wrapping sheet more tightly around an item to be packed and a holding member which is provided on the supporting table to prevent the item from rising up from the supporting table. CONSTITUTION:If an operator forces downward an item A to be packed from above into an opening 23a of a feed part 23, a wrapping sheet 1 is pressed against the side surface of the item A by an elastic press action of the part 23 so that the sheet is wrapped in a closing direction tightly around the item A. And the item A pushes and expands a plurality of auxiliary tightening members 11 provided below an opening 2a and falls on a supporting table 3, while the item A draws the sheet 1. If a start switch is operated, an operation arm 20 at a vertical position is changed over to a horizontal position so that holding arms 18 on the right and left are pivoted toward the item A by the force of springs 19 and sponges 18a of the arms 18 press the opposite sides of the item A to hold it, thus preventing the item A from rising up from the table 3, following which an operation cylinder is contracted to lower the table 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing device for agricultural products in which a spherical object to be packed (for example, vegetables such as lettuce and cabbage, or fruits such as melon and apple) is wrapped in a packing sheet.

[0002]

2. Description of the Related Art As a packaging apparatus as described above, for example, there is one disclosed in Japanese Patent Application Laid-Open No. 3-133710. That is, a packaging table (7 in FIG. 1 of the publication) provided with a hole (8 in FIG. 1 of the publication) for placing a packaging object for mounting the packaging sheet is provided on the packaging board. Place and place the object to be packaged into the opening from above. As a result, the packaging sheet is slightly squeezed at the outer edge of the opening, and the article to be packaged is lightly wrapped by the packaging sheet and supported by the lower support (58 in FIG. 1 of the above publication). Next, as shown in FIG. 4 of the publication, the support base is lowered to a predetermined position, the packaging sheet is squeezed at the outer edge of the opening, and the packaging sheet is wrapped with about half of the object to be packaged. After that, as shown in FIG. 2 and FIG. 5 of the publication, a pair of sandwiching members arranged opposite to each other on both lateral sides (see FIG. 2 and FIG. 5 of the publication).
2, 16) advances to the side of the packaged object, and the upper part of the packaging sheet in the packaged object is sandwiched and narrowed down by the pair of sandwiching members, and the packaged sheet is wrapped with the packaged object.

[0003]

The vegetables, such as lettuce and cabbage, which the packaging apparatus of the present invention is intended for, have leaves that tend to open entirely depending on the state of their growth, or leaves that do not open so much. It may be tight and tight. Therefore, especially when packaging vegetables whose leaves are generally open, the packaging sheet opens the packaging table when the support table is lowered after the vegetables are put into the holes of the packaging table. Even if it is squeezed with holes, the leaves may cause the wrapping sheet to re-expand. As described above, if the article to be packaged on the support base is not sufficiently wrapped in the packaging sheet, when the upper portion of the packaging sheet is subsequently sandwiched by the pair of clamping members, the packaging sheet may not be successfully sandwiched. The present invention, when the object to be packaged is thrown into the opening of the packaging table and then the lowering operation of the support table is performed so that the object to be packaged is wrapped in the packaging sheet, even vegetables with open leaves or the like are packaged in the packaging sheet. It is intended to be configured to be fully wrapped.

[0004]

A feature of the present invention is that the packaging apparatus as described above is configured as follows. That is, when an item to be packaged is dropped into the opening, an auxiliary squeezing member that further narrows the packaging sheet to the side of the item to be packaged is provided between the packaging table and the support table, and the object dropped on the support table is also provided. A holding member is provided on the support base to prevent the package from rising from the support base.

[0005]

With the construction described above, as shown in FIGS. 1 and 2, for example, when the article A to be packaged is dropped into the opening 2a of the packaging table 2 from above, the article A to be packaged 1 While pulling in, the auxiliary throttle member 11 is slightly spread out and falls on the support base 3. Then, the holding member 18 holds the article A to be packaged so as not to float up from the support base 3. Accordingly, when the article A to be packaged is held by the support table 3 and is lowered together with the support table 3 as described above, the auxiliary squeezing member 11 causes the side surface of the article A to be packaged and the package to be wrapped along with the downward movement. Since the upper portion 1a of the sheet 1 is sequentially pressed toward the center side, the packaging sheet 1 is reliably pressed and brought into close contact with the lateral side surface of the article A to be packaged, and the upper portion 1a of the packaging sheet 1 is narrowed down.

As described above, if the wrapping sheet is securely pressed and brought into close contact with the lateral side surface of the article to be packaged and the upper portion of the wrapping sheet is squeezed to a small degree, then the wrapping sheet shown in FIGS.
As shown in (a), the packaging sheet 1 is held by the sandwiching member 14.
When sandwiching the upper portion 1a of the above, the upper portion 1a of the packaging sheet 1 does not come off from the operating portion of the sandwiching member 14, and is reliably sandwiched between the operating portion of the sandwiching member 14. Then, as the upper part of the packaging sheet is sandwiched by the sandwiching member, the packaging sheet is pulled up to the sandwiching member side, and the packaged item is wrapped in the packaging sheet. In this case, the packaging sheet is a side surface of the packaged item. If the packaging sheet is securely pressed and adhered to the packaging sheet, the packaging sheet is tightly and tightly clamped to the article to be packaged as the packaging sheet is pulled up. As a result, even lettuce, cabbage, and the like, whose leaves are opened, the opened leaves are closed and clamped with appropriate strength to be packaged.

[0007]

As described above, with the lowering operation of the support table, even the vegetables whose leaves are open can be sufficiently wrapped in the packaging sheet, and the upper portion of the packaging sheet can be squeezed small. Therefore, the sandwiching of the sandwiching member to be performed thereafter can be reliably performed, and the reliability of the operation of the packaging device can be enhanced. Then, even vegetables with open leaves can be closed by wrapping the open leaves and tightened with appropriate strength, and the certainty of the packaging itself can be improved.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. First, the flow of the entire packaging in the packaging device of the present invention will be described. As shown in FIG. 5A, after the end of the previous packaging, one packaging sheet 1 cut into a predetermined length is placed on the packaging base 2. Then, when the object A to be packaged (for example, a spherical vegetable such as lettuce or cabbage) is dropped into the opening 2a of the packaging table 2, the object A to be packaged is wrapped in the packaging sheet 1 and the lower support table. Falls within 3. When the operator pushes the start switch (not shown) in this state, the support base 3 is lowered as shown in FIG. 5B (corresponding to the first operation means).

In this case, the opening 23 of the inserting portion 23 described later
The packaging sheet 1 is squeezed at the outer edge of a. Then, as will be described later, a plurality of rubber plate-shaped auxiliary throttle members 11 are provided with the openings 2
The auxiliary sheet 11 is provided on the lower side of a so as to surround the article A to be packaged, and the auxiliary sheet 11 further squeezes the packaging sheet 1.

Next, the pair of plate-shaped holding members 14 arranged on the lower side of the packaging table 2 are shown in FIGS. 5 (c) and 6 (a).
As shown in (3), it advances to the side of the packaging sheet 1 and sandwiches the upper portion 1a of the packaging sheet 1 and narrows it down (corresponding to the second operation means). As a result, the article A to be packaged is substantially completely wrapped in the packaging sheet 1. After that, as shown in FIG. 6A, the pair of disk cutters 28 advances along the upper surface of the holding member 14, and the upper portion 1a of the packaging sheet 1 is cut off.

Next, as shown in FIG. 6B, the adhesive tape 4 cut into a predetermined length is placed over the upper end of the packaging sheet 1 and the end of the sandwiching member 14, and the adhesive tape 4 shown in FIG. As shown in, the adhesive tape 4 is pressed from above by the sponge member 16. Then, while the adhesive tape 4 is being pressed by the sponge member 16, as shown in FIG. 7A, the pair of holding members 14 are operated to be opened, and the sponge member 16 is again pressed to the side of the article A to be packaged, Make sure that the adhesive tape 4 is firmly attached to the packaging sheet 1. After this, Figure 7 (b)
The support base 3 is laid down and operated as shown in FIG.
Is discharged to the slide 15 and collected. In this way, one-time wrapping is completed, and the state of the object A to be packaged is shown in FIG.

Next, the lifting structure of the support base 3 and the auxiliary diaphragm member 11 will be described. As shown in FIG. 1, the packaging table 2
A first support frame 6 is slidably mounted on a pair of left and right guide rails 5 disposed below the opening 2a of the second support frame 6 and is fixed to the upper part of the first support frame 6. The support base 3 is supported by 17 via a shock absorbing spring 7. This support base 3
It is configured by bending four sides of a flat plate having a plus shape in plan view upward. The operation arm 8 swingable about the horizontal axis P1 has a pin and a long hole structure, and the first support frame 6 is provided.
And an operating cylinder 9 for swinging the operating arm 8 up and down.

As shown in FIGS. 1 and 3, a pair of holding arms 18 (corresponding to holding members) are swingably supported around the horizontal axis P3 at the left and right ends of the second support frame 17. A horizontally long sponge 18 is attached to the tip of the holding arm 18.
a is attached, and a spring 19 for urging the left and right holding arms 18 so as to swing toward the central support base 3 side is provided. The first support frame 6 is provided with an operation arm 21 that is switched by a motor 20 between the vertical posture shown in FIG. 1 and the horizontal posture shown in FIG. 2, and both ends of the operation arm 20 and the left and right holding arms 18 are provided. The lower end is connected to each other by a link link 22.

As shown in FIGS. 1, 2 and 5 (a), a loading portion 23 made of a hard rubber plate having an opening 23a having a smaller diameter than the opening 2a of the packaging table 2 is provided. It is attached at the position of the hole 2a. When the object A to be packaged is packaged by this packaging device, the object A to be packaged is too large and the area of the packaging sheet 1 is insufficient, so that sufficient packaging cannot be performed, or conversely, the object A to be packaged is small. It may be said that the packaging sheet 1 is too much and the packaging is not clean. Therefore, the inner diameter of the opening 23a of the charging portion 23 is
The size of the article A to be passed through is set so that it does not hinder the packaging apparatus and that it can be packaged cleanly.

As shown in FIGS. 1, 2 and 5B, an auxiliary throttle member 11 is arranged and fixed between the opening 2a of the packaging table 2 and the support table 3. This auxiliary diaphragm member 11
Is made of a rubber plate and has a trapezoidal shape in a plan view, and a plurality of auxiliary aperture members 11 are provided below the opening 2a so as to surround the article A to be packaged.

In the initial state, as shown in FIG. 1, the operation arm 21 is operated in a vertical posture, and the left and right holding arms 18 are operated to be opened left and right. In this state, the packaged object A to be put in from now on is lightly put in the opening 23a of the input section 23. In this case, if it is difficult to put the article A to be packaged, it can be determined that the article A to be packaged is too large for the packaging apparatus or the leaves are too open. Therefore, in such a case, it is necessary for an operator to manually close the opened leaf to the closed side, partially remove the leaf, or prepare another small-diameter object A to be packaged. .. On the contrary, the object to be packed A to be charged from now on is fed into the charging unit 23.
If the object A to be packaged is too easy to be inserted into the opening 23a, it can be determined that the object A to be packaged is too small for this packaging device. Therefore, in such a case, the operator needs to prepare another large-diameter object A to be packaged.

As described above, with the inner diameter of the opening 23a of the feeding section 23 as a reference, the leaf is manually tightened to the closing side, another object A to be packaged is prepared, and the like. Prepare a slightly larger package A. And FIG.
As shown in (a) and FIG. 1, the worker drops the article A to be packaged by slightly pushing the article A to be inserted into the opening 23 a of the insertion portion 23 from above. As a result, the packaging sheet 1 is pressed against the lateral side surface of the article A to be packaged by the elastic pressing action of the feeding portion 23, and the leaf of the article A to be opened is tightened to the closed side. Then, the object A to be packaged pushes the auxiliary squeezing member 11 a little while pulling in the packaging sheet 1, and falls onto the support base 3.

Next, an operator activates a start switch (not shown).
When is operated, the operation arm 21 is switched to the left and right posture as shown in FIG. 2, and the urging force of the spring 19 causes the left and right holding arms 18 to swing to the side of the article A to be packaged. The sponge 18a is pressed to the left and right of the article A to be packaged. Thus, the left and right holding arms 18 are used to
By sandwiching, the article A to be packaged is held so as not to rise from the support base 3.

After this operation, the operation cylinder 9 is contracted, the support base 3 is lowered to the position shown in FIGS. 5B and 2, and stopped at that position (corresponding to the first operation means).
In this case, when the article A to be packaged is held by the support table 3 and is lowered together with the support table 3, the auxiliary squeezing member 11 causes the side surface of the article A and the packaging sheet 1 to be moved along with the lowering operation.
Since the upper portion 1a of the above is sequentially pressed toward the center side, the packaging sheet 1 is surely pressed and brought into close contact with the lateral side surface of the article A to be packaged, and the upper portion 1a of the packaging sheet 1 is narrowed down. Also, the long hole 2 of the link link 22 shown in FIGS.
2a, when the packaging device is stopped in a state where the holding arm 18 holds the article A to be packaged as shown in FIG. 2, the left and right holding arms 18 are manually spread to the left and right,
This is to enable the object A to be packaged to be taken out.

As described above, the support base 3 is shown in FIG.
2 and when stopped at the position shown in FIG. 2, the pair of clamping members 14 advance as described above to clamp the upper portion 1a of the packaging sheet 1 (corresponding to the second operating means), and the upper portion of the packaging sheet 1 by the disc cutter 28. 1a is cut off and the adhesive tape 4 is attached.

Next, as shown in FIG. 7 (a), one package is completed, and as shown in FIG. 7 (b), the object A to be packaged is discharged laterally from the support base 3. explain. As shown in FIGS. 1 and 3, the support portion 10 having a U-shaped cross section is supported by the second support frame 17 via the spring 7,
The support base 3 is swingable around the horizontal axis P2 of the support portion 10.
The base portions 3a of are connected. In this case, the bottom portion of the base portion 3a does not contact the bottom portion of the support portion 10, and in the state shown in FIG.

Then, in the base portion 3a of the support base 3, a portion adjacent to the horizontal axis P2 laterally and in the support portion 10 the horizontal axis P2.
The spring 12 is erected and connected in a state in which the spring 12 is extended more than the free length over a portion having substantially the same height. As a result, even if the support base 3 swings to the right and left in the drawing from the work posture shown in FIG. 3, the spring 12 is pulled and the support base 3 is returned to the posture shown in FIG. The support base 3 is held in the most contracted posture shown in FIG.

With the above structure, as shown in FIG. 6 (a), when one packaging is completed, the operation arm 21 is switched to the vertical posture and the left and right operation arms 18 are opened (see FIG. 1). (See the state), and the operating cylinder 9 further lowers the support base 3 from the position shown in FIG.
As a result, as shown in FIG. 4, the operation plate 3b fixed to the base portion 3a comes into contact with the rubber roller 13a of the fixed frame 13, and the support base 3 is operated to fall sideways around the horizontal axis P2. When the support base 3 is laid down and operated in this manner, the article A to be packaged is transferred from the support base 3 to the slide base 15 and is put out to the outside.

When the above operation is completed, the operation cylinder 9
Thus, the support base 3 is lifted up to the original position shown in FIGS. In such a state, since the operation plate 3b of the support base 3 is separated upward from the rubber roller 13a, the support base 3 is changed from the state shown in FIG. 4 to the posture shown in FIG. 3 only by the urging force of the contraction of the spring 12. As it returns, the support base 3 converges on the posture of FIG. 3 in which the spring 12 contracts most.

[Other Embodiment] The operating structure of the holding arm 18 shown in FIG. 1 may be configured as follows. As shown in FIG. 8, the holding arms 18 are swingably supported around the horizontal axis P4 at the left and right ends of the support base 3. This holding arm 1
A horizontally long roller 18b is supported at the tip of 8 so as to be freely rotatable, and the holding arm 18 is supported by a spring 25.
Is urged to swing toward the center of the. A pair of wires 24 are inserted through the left and right holes of the second support frame 17, and the wires 24 are located above the state shown in FIG.
A stopper 24 a that prevents the wire from coming off is fixed to the wire 24, and the other end of the wire 24 is connected to the holding arm 18. As a result, the left and right holding arms 18 are held in the posture shown in FIG. 8 by the action of the wire 24.

As described above, the left and right holding arms 18 are closed to the support base 3 side by the action of the spring 25 even in the initial state. In this state, as shown in FIG. 5A, the operator drops the article A to be packed into the opening 2a of the packaging table 2 from above, and the auxiliary squeezing member 11 and the holding arm 18 are moved by the article A to be packed. The material to be packaged A is dropped on the support base 3 as it is spread. In this way, the roller 18b is pressed to the left and right of the article A by the urging force of the spring 25, and the article A is held so as not to float up from the support base 3. Then, when the object A to be packaged is dropped onto the support base 3 by pushing the holding arm 18 wide, the roller 18a is pressed against the lateral side surface of the object A to be packaged during the period.
The open leaf is pressed by the roller 18b, and the packaging sheet 1 is pressed against the lateral side surface of the article A to be packaged.

Next, an operator activates a start switch (not shown).
When is operated, the support base 3 is moved down similarly to the structure shown in FIG.
1 is the side surface of the article A to be packaged and the upper part 1 of the packaging sheet 1.
a is sequentially pressed toward the center side, and the packaging sheet 1 is surely pressed and brought into close contact with the lateral side surface of the article A to be packaged.
The upper part 1a of the is narrowed down.

When one package is finished, the support base 3 is further lowered. As a result, as shown in FIG. 9, the operation plate 3b fixed to the base portion 3a of the support base 3 comes into contact with the rubber roller 13a of the fixed frame 13, and the support base 3 is laid down around the horizontal axis P2 and operated. .. In this case, as shown in FIG. 8, in the second support frame 17, since the wire 24 is connected to the portion distant from the position of the horizontal axis P2 of the support base 3 to the left and right of the drawing, the support is performed as shown in FIG. The wire 24 is configured to be pulled to the side of the second support frame 17 when the table 3 is laid down and operated. As a result, when the support base 3 is laid down sideways as shown in FIG. 9, the holding arm 18 is opened to the left and right by the pulling operation of the wire 24, and the article A to be packaged is transferred from the support base 3 to the slide base 15 without trouble. It is released.

In the embodiment shown in FIGS. 1 and 8, the packaging sheet 1 is sealed with the adhesive tape 4, but the upper portion 1a
The present invention may be applied to a packaging device that seals the packaging sheet 1 by heating the packaging sheet 1 and welding the packaging sheet 1 after cutting. In addition, the present invention is applied to a packaging device that heats the upper part 1a of the packaging sheet 1 sandwiched by the sandwiching member 14 with a heater to melt and cut, instead of the disc cutter 28 shown in FIG. Good.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a front view of the vicinity of a support table showing a state in which an object to be packaged is put into an opening of a packaging table and dropped on the support table.

FIG. 2 is a front view showing a state in which the left and right holding arms hold the article to be packaged and the support base is lowered from the state shown in FIG.

FIG. 3 is a side view of the vicinity of a support table showing a state in which the left and right holding arms hold an object to be packaged.

FIG. 4 is a side view showing a state in which the support table is further lowered from the state shown in FIG.

FIG. 5 is a perspective view showing the flow of packaging from the insertion of the packaged object into the opening to the narrowing down of the packaging sheet by the sandwiching member.

FIG. 6 is a perspective view showing the flow of packaging from the cutting of the upper portion of the packaging sheet to the pressing of the adhesive tape by the sponge member.

FIG. 7 is a perspective view showing the flow of packaging from the opening operation of the holding member to the discharging of the packaged article and a state in which the packaging is completed.

FIG. 8 is a front view of the vicinity of a support base and a holding arm according to another embodiment.

FIG. 9 is a side view showing a state in which the support base is moved down and laid down to discharge the article to be packaged in another embodiment shown in FIG.

[Explanation of symbols]

 1 Packaging Sheet 1a Upper Part of Packaging Sheet 2 Packaging Platform 2a Opening of Packaging Platform 3 Support Platform 11 Auxiliary Drawing Member 14 Clamping Member 18 Holding Member A Packaged Items

Claims (1)

[Claims] 1. A packaging table (2) for mounting a packaging sheet (1) and having an opening (2a) into which a spherical article (A) is dropped.
And the packaged object (A) in the opening (2a) from above.
When the packaging sheet (1) is dropped, the packaging sheet (1) is squeezed at the outer edge of the opening (2a) and the packaged article (A) becomes the packaging sheet (1).
A support base (3) configured to be wrapped in the package sheet (1) and supporting the article to be packaged (A) that has fallen into the opening (2a) while being wrapped in the packaging sheet (1), and the article to be packaged. (A)
First operating means for lowering the support base (3) supporting the base to a predetermined position, and the support base (3) lowered to the predetermined position
On the other hand, a pair of clamping members (14) arranged on both lateral sides
To the packaged object (A) side, and the upper part (1a) of the packaging sheet (1) in the packaged object (A) is sandwiched and narrowed by the pair of clamping members (14), and the packaged object (A). ) Is packaged in the packaging sheet (1), and the packaging sheet (1) is further expanded when the article (A) to be packaged is dropped into the opening (2a). An auxiliary throttling member (11) for narrowing down the object to be packaged (A) is provided between the packaging table (2) and the support table (3), and the object to be packaged dropped on the support table (3). The holding member (18) for suppressing the lifting of (A) from the support base (3) is provided on the support base (3).
Packing equipment provided for.