JPH05201418A - Packaging equipment - Google Patents

Abstract

(57) [Summary] [Purpose] When a packaged item is dropped into the opening of the packaging table on which the packaging sheet is placed, the packaging sheet is squeezed and the packaged item falls on the lower support table while it is wrapped. Configured to
In a packaging device equipped with a squeezing mechanism that sandwiches and squeezes the upper part of the packaging sheet of the article to be packaged on the support table from the lateral direction, the support table is placed in a sideways posture. When returning the support to the original work position by spring after releasing the packaged object,
The support base can be returned to the work position and held without the stopper for holding the work position. [Structure] A portion 3b adjacent to a horizontal axis P2 for swinging of the support base 3 and a portion 10a on the same side as the portion 3b of the support base 3 at a height position substantially the same as the horizontal axis P2 of the support member. The coil spring 12 is erected and connected in a state where the coil spring 12 is extended more than the free length, and the support base 3 is held in the working posture only by the urging force of the contraction of the coil spring 12.

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 There are the following packaging devices as described above. In other words, a packaging table for placing a packaging sheet and having an opening through which a spherical article to be packaged falls is provided, and the packaging sheet is placed on this packaging table and the article to be packaged is dropped into the opening from above. As a result, the packaging sheet is squeezed at the outer edge of the opening, and the object to be packaged is supported by the lower support base while being wrapped in the packaging sheet (at this time, the support base is in a substantially horizontal working posture). After that, the upper part of the packaging sheet of the article to be packaged on the support base is laterally sandwiched and squeezed by the squeezing mechanism, and the article to be packaged on the support platform is wrapped in the packaging sheet.

When one wrapping is completed as described above, the posture changing means for the supporting table is operated to switch the supporting table to the sideways falling discharge state, so that the object to be packaged in the supporting table is laterally moved. It is discharged to the side recovery part. In this case, a spring for urging the support base toward the work posture and a stopper that comes into contact with the support base and stops the support base in the work posture are provided. This allows
The posture changing means switches the support base from the work posture to the discharge posture against the biasing force of the spring, and when the discharge of the packaged object is completed, the support force returns to the original work posture by the spring biasing force. is there.

[0004]

With the above-mentioned configuration,
When the support base in the discharge position returns to the work position, the support base stops in the work position by returning to the work position by the biasing force of the spring and hitting the stopper. Therefore,
When the support base is vigorously returned to the work posture by the spring,
A large collision sound is generated when the support base hits the stopper, and therefore a large collision sound is generated every time the support base returns to the work posture side, which is not preferable in terms of work hygiene. If such a collision of the support base and the stopper is repeated, the collision part may be damaged. It is an object of the present invention to configure the packaging device as described above so that the above-mentioned collision phenomenon does not occur when the support table returns to the working posture after the discharge of the articles to be packaged is completed.

[0005]

A feature of the present invention is that the packaging apparatus as described above is configured as follows. In other words, the support base swings around the horizontal axis of the support member over a substantially horizontal working posture in which the packaged item is received from the lower side and a sideways-discharging release posture in which the packaged item is discharged to the horizontal collecting unit. It is equipped with a changeable movement posture, and the coil spring can be freely extended across the part next to the horizontal axis of the support base and the part on the same side of the support base as the horizontal axis of the support member. It is constructed so that it is extended more than the length and is connected so that the support base is held in the work posture only by the urging force of the contraction of the coil spring, and the support base is operated in conjunction with the end of one packaging. Attitude changing means for changing the attitude from the attitude to the discharge attitude is provided.

[0006]

With the above-mentioned structure, in the state shown in FIG. 1A, for example, the support base 3 can freely swing to the left and right in the drawing. When the coil spring 12 is erected and connected as described above, the coil spring 12 is pulled even when the support base 3 swings to the right and left in the drawing from the work posture shown in FIG. Since the work posture is returned to the work posture of FIG. 1A, the posture of the support base 3 is converged and held in the work posture of FIG. 1A in which the coil spring 12 contracts most. Then, when the packaging is completed once, as shown in FIG. 1B, the support base 3 is tilted sideways around the horizontal axis P2 by the attitude changing means against the urging force of the coil spring 12 to release the attitude. Becomes As a result, the article A to be packaged is transferred from the support base 3 to the recovery unit 15.
When the above operation is completed, the action of the posture changing means on the discharge posture side disappears, so that the support base 3 is in the state shown in FIG. 1B only by the contracting biasing force of the coil spring 12 which has been stretched. 1 returns to the work posture side shown in FIG. 1A, and the coil spring 12 contracts most.
The posture of the support base 3 converges in the work posture of (a).

[0007]

As described above, when the support table in the discharging position is returned to the working position by the urging force of the coil spring,
Instead of the support base hitting the stopper and stopping in the working position, the support base can be held in the working position only by the urging force of the contraction of the coil spring.
As a result, when the support table is returned to the working position, it does not generate a loud collision noise that hits the stopper, which is preferable in terms of work hygiene and prevents damage at the collision part. I was able to do it.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. As shown in Fig. 5 (a),
One piece of the packaging sheet 1 cut into a predetermined length is placed on the packaging table 2. Then, the object to be packaged A is opened at the opening 2a of the packaging table 2.
When it is dropped inside, the article A to be packaged falls into the lower support base 3 while being wrapped in the packaging sheet 1. When an operator pushes a start switch (not shown) in this state, the operation shown in FIG.
As shown in (b), the support base 3 is moved down to open the opening 2
The packaging sheet 1 is squeezed at the outer edge of a. In this case, a plurality of rubber plate-shaped auxiliary squeezing members 11 are provided below the openings 2a so as to surround the article A to be packaged, and the wrapping sheet 1 can be squeezed further by the auxiliary squeezing members 11. I am configuring.

Next, a pair of plate-shaped holding members 14 (corresponding to the squeezing mechanism) arranged on the lower side of the packaging table 2 are shown in FIG.
As shown in (c) and FIG. 6 (a), it proceeds to the side of the packaging sheet 1 and narrows down the upper part 1a of the packaging sheet 1. 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 sponge member 47 presses the adhesive tape 4 from above. Then, while the adhesive tape 4 is being pressed by the sponge 47, as shown in FIG. 7A, the pair of holding members 14 are operated to be opened, and the sponge member 47 is again pressed to the side of the article A to be adhered, Make sure that the tape 4 is firmly attached to the packaging sheet 1. In this way, one-time wrapping is completed, and the state of the object A to be packaged is shown in FIG.

Next, the support base 3 itself and its lifting structure will be described. As shown in FIG. 3, the support base 3 is configured in a bowl shape by the wire rod and the strip plate, and the support base 3 is disposed below the circular opening 2 a of the packaging base 2. A support member 6 is attached to a pair of left and right guide rails 5 so as to be vertically slidable, and the support base 3 is supported by the support member 6 via a shock absorbing spring 7. An operation arm 8 swingable around the horizontal axis P1 is connected to the support member 6 by a pin and a long hole structure, and an operation cylinder 9 for swinging the operation arm 8 up and down is provided. ing.

With the above structure, FIG. 4A and FIG.
As shown in (a), when an operator drops the article A to be packaged into the opening 2a of the packaging table 2 from above, the article A to be packaged falls on the support table 3 while pulling in the packaging sheet 1. When the operator operates a start switch (not shown), the operation cylinder 9 contracts and the support base 3 is lowered to the position shown in FIGS. 4 (b) and 5 (b), and at that position. To stop.

When one package is completed as shown in FIG. 7A, the article A to be packaged is discharged laterally from the support base 3 as shown in FIG. 7B. Next, a structure for discharging the packaged object A that has been packaged sideways will be described. As shown in FIGS. 1 (a) and 2, a supporting portion 10 having a U-shaped cross section is supported by a supporting member 6 via a spring 7, and is swingable around a horizontal axis P2 of the supporting portion 10. The base 3a of the support base 3 is connected to the. In this case, the bottom portion of the base portion 3a does not contact the bottom portion of the supporting portion 10, and in the state shown in FIG.

A portion 3b of the base 3a of the support base 3 adjacent to the horizontal axis P2 and a portion 10a of the support 10 on the same height as the horizontal axis P2 and on the same side as the portion 3b of the base 3a. And the coil spring 12 is erected and connected in a state where it is extended more than the free length. As a result, the coil spring 12 is pulled even when the support base 3 swings to the right and left in the drawing from the work posture shown in FIG. 1 (a), and the support base 3 moves to the work posture shown in FIG. 1 (a). The coil spring 12 contracts most when it is returned.
The support 3 is held in this work posture.

With the above structure, as shown in FIG. 7 (a), when one package is completed, the operation cylinder 9 lowers the support base 3 as shown in FIG. 2 and FIG. 1 (b). As a result, the operation plate 3c fixed to the base portion 3a contacts the rubber roller 13a of the fixed frame 13, and the support base 3 is operated to fall sideways around the horizontal axis P2. The stand 3 is in the discharging posture (the above is equivalent to the posture changing means). In this way, when the support base 3 is in the sideways falling discharge posture, the object to be packaged A is slid from the support base 3 into the slide base 1.
It is moved to 5 (corresponding to the collection section) and is sent to the outside.

When the above operation is completed, the operation cylinder 9
By this, the support base 3 is lifted up to the original position shown in FIGS. 4 (a) and 5 (a). When this happens,
Since the operation plate 3c 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. 1B to only the biasing force of the contraction of the coil spring 12.
The posture of the support base 3 converges in the working posture shown in FIG. 1A in which the coil spring 12 contracts most as it returns to the working posture shown in FIG.

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 side view showing a state in which the support base is being switched between a work position and a discharge position as the support base is moved up and down.

[Figure 2] Front view near the support

FIG. 3 is a front view of a supporting table, a supporting member, and an operation cylinder for raising and lowering the supporting table.

FIG. 4 is a front view showing a state in which the support base is lowered during and after dropping the packaged object.

FIG. 5 is a perspective view showing a flow of wrapping from dropping an object to be packaged into an opening to squeezing a wrapping sheet by a holding 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.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packaging sheet 1a Upper part of packaging sheet 2 Packaging table 2a Opening of packaging table 3 Support table 3b Part in support table 6 Support member 10a Part in support member 12 Coil spring 14 Throttling mechanism 15 Collection section P2 Horizontal axis A Packaged object

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.
When the object to be packaged (A) is dropped into the opening (2a) from above, the packaging sheet (1) is squeezed at the outer edge of the opening and the object to be packaged (A) is packed into the packaging sheet (1). ), And a support table (3) for supporting from below the packaged object (A) that has fallen into the opening (2a) while being wrapped in the packaging sheet (1), and this support table. (3) The upper part (1a) of the packaging sheet (1) in the article to be packaged (A) is sandwiched and narrowed from the lateral direction, and the article to be packaged (A) on the support base (3) is the packaging sheet (1). A wrapping device including a squeezing mechanism (14) that allows the package (A) to be wrapped in a package, and a substantially horizontal working posture that receives the package (A) from below and the package (A) to the side. Of the supporting base (3) over the sideways falling-like discharging posture for discharging to the collecting section (15) of
Is provided so that the swinging posture can be freely changed around the horizontal axis (P2) of the support member (6), and the horizontal axis (P
2) adjacent to the side (3b) and a part (3b) of the support base (3) at the same height position as the horizontal axis (P2) of the support member (6). 10a), the coil spring (12) is erected and connected to the coil spring (1) in a state where the coil spring (12) is extended more than the free length.
The support base (3) is configured to be held in the work posture only by the urging force of 2), and the support base (3) is changed from the work posture to the release posture in association with the end of one packaging. A packaging device provided with a posture changing means for performing a posture changing operation.