JP2667612B2 - Packaging equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art As the above-mentioned packaging apparatus, there is, for example, one disclosed in Japanese Patent Application Laid-Open No. 3-133710. In other words, a packaging table is provided with an opening into which a spherical object to be packaged falls into which the packaging sheet is placed, and the packaging sheet is placed on this packaging table and the object 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 (58 in FIG. 1 of the above publication) while being wrapped in the packaging sheet. Next, when a start switch (corresponding to an artificial operation tool) is operated, as shown in FIGS. 2 and 5 of the above-mentioned publication, a pair of holding members (the Second bulletin
12 and 16) in the drawings and FIG. 5 are advanced to the packaged object side, and a narrowing operation is performed by sandwiching the upper portion of the packaging sheet. Then, the upper portion of the packaging sheet is cut and sealed so as not to open, and as shown in FIG. 6 of the above-mentioned publication, the object to be packaged is released from the support base to the side, and one package is completed. (This corresponds to the packaging operation means).

[0003] In such a packaging apparatus, it has been considered to equip a pull-out means for automatically pulling out the next packaging sheet for packaging and placing it at a predetermined position on a packaging table. As a result, when one package is completed as described above, a new packaging sheet is automatically pulled out for the next packaging and placed at a predetermined position on the packaging table. When the package is dropped into the opening and the start switch is operated, packaging is performed, and a new packaging sheet is automatically pulled out after the packaging is completed.

[0004]

The drawing-out means for the packing sheet in the above-mentioned packing apparatus is constituted so as to be operated after one-time packing is completed by the packing operation means. As a result, the following inconvenience may occur when the packaging work is started from the initial state where the packaging sheet is not placed on the packaging table.

When the packaging work is started from the initial state as described above, it is first necessary to pull out the packaging sheet for the first packaging from the packaging table. In this case, the pull-out means for the wrapping sheet will not operate until after one wrapping is performed, so to operate the pull-out means, drop the dummy packaged object into the opening and operate the start switch. Then, the packaging operation means is once idled. When such an operation is performed, the drawer is operated after the empty operation, and the first packaging sheet is pulled out to the packaging table. However, at the beginning of the packaging operation, the operation of emptying the dummy article to be packaged as described above is troublesome and wastes time. An object of the present invention is to provide a configuration in which a packaging sheet is pulled out to a packaging table when the packaging device is equipped with the above-described drawing means without performing idle operation at the start of a packaging operation.

[0006]

A feature of the present invention resides in the following configuration in the above-described packaging apparatus. In other words, a pull-out means for pulling out and placing a new packaging sheet of a predetermined length at a predetermined position on the packaging table, a presence / absence sensor for detecting the presence / absence of an article to be packaged on the support base, and an artificial operation tool which is artificially operated And operating the packaging operation means when the artificial operation tool is operated in a state where the presence / absence sensor is detecting the article to be packaged on the support base, and operating the drawer means after completion of the packaging. Control means, and second control means for operating the drawer means without operating the packaging operation means when the artificial operation tool is operated in a state where the presence / absence sensor has not detected the article to be packaged on the support base. There is.

[0007]

According to the present invention, when the packaging sheet is pulled out from the initial state where the packaging sheet is not placed on the packaging table, the artificial operation tool is not dropped into the opening of the packaging table without dropping anything. Just operate it. In this case, since there is no package in the support and the presence / absence sensor does not detect the package on the support, only the pull-out means is operated by the operation of the second control means, and the first packaging sheet is placed in the package. To a predetermined position. And since the packaging operation means does not operate, the empty operation of the packaging is not performed.

After the first packaging sheet is placed on the packaging table as described above, the article to be packaged is then dropped into the opening of the packaging table. As a result, the article to be packaged falls on the support table while being wrapped in the packaging sheet, and the artificial operation tool is operated in this state. In this case, since the presence / absence sensor detects the article to be packaged on the support base, the packaging operation means is actuated by the action of the first control means to package the article to be packaged on the support base. Then, after the completion of the packaging, the drawer is operated, and the next packaging sheet is pulled out and placed on the packaging table.

[0009]

As described above, when the first wrapping sheet is placed on the wrapping table by the pulling-out means, it is merely an artificial operation tool without having to drop a dummy wrapped object or the like into the opening. , The packaging sheet can be placed on the packaging table by simply operating, and the operability of the packaging device can be improved. In this case, there is no waste such as performing the empty operation of the packaging.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. (1) FIG. 1 shows the entire packaging device of the present invention.
First, the flow of one package in this packaging apparatus will be described with reference to FIGS. 11 (a) to 13 (c) and FIGS. As shown in FIG. 11A, in a state where one packaging sheet 1 cut to a predetermined length is placed on the packaging table 2, the worker puts the packaged object A into the opening 2 a of the packaging table 2. When it is dropped into the container, the packaged object A
It falls into the lower support 3 while being wrapped a little (step S1). After this, a start switch (equivalent to an artificial operation tool)
(Not shown) (step S2), FIG.
As shown in (b), the support base 3 is lowered (Step S5) and stopped at a predetermined position (Step S5).
7). In this case, a plurality of rubber plate-shaped auxiliary squeezing members 11 are provided below the opening 2a so as to surround the article to be packaged A, and the auxiliary squeezing members 11 further narrow the packaging sheet 1.

Next, a pair of plate-like holding members 14 arranged on the lower side of the packaging table 2 are shown in FIGS.
As shown in (a), it proceeds to the side of the packaging sheet 1 (step S9), sandwiches the upper portion 1a of the packaging sheet 1 and narrows it down to a small size. Thereby, the packaged object A is almost completely wrapped in the packaging sheet 1. Thereafter, as shown in FIG. 12A, the pair of disk cutters 28 advances along the upper surface of the sandwiching member 14, and the upper portion 1a of the packaging sheet 1 is cut off (step S10). The packaging sheet 1 on which the air is injected and adheres to the disc cutter 28
Is blown off (step S11).

Next, as shown in FIG. 12B, the adhesive tape 4 cut to a predetermined length is placed over the upper end of the packaging sheet 1 and the end of the holding member 14 (step S1).
2) As shown in FIG. 12C, the adhesive tape 4 is pressed from above by the sponge member 16 (step S1).
3). Then, in a state where the adhesive tape 4 is pressed by the sponge member 16, the pair of holding members 14 are opened as shown in FIG. 13A (step S <b> 14), and the sponge member 16 is pressed again to the package A side. The operation is performed (Step S15), so that the adhesive tape 4 is securely brought into close contact with the packaging sheet 1.

Thereafter, as shown in FIG. 13 (b), the support 3 is operated to lie down, and the packaged object A is released to the slide 15 and collected (step S17). One package is completed as described above, and the state of the packaged object A after the packaging is shown in FIG. And the support 3
Is operated again to the original position shown in FIG. 11A (step S18) (this corresponds to the packaging operation means).

(2) Next, the structure for raising and lowering the support 3 in FIG. 11B will be described. As shown in FIG. 9, a first support frame 6 is vertically slidably mounted on a pair of left and right guide rails 5 arranged below the opening 2 a of the packaging table 2. The support base 3 is supported by a second support frame 17 fixed to the upper part of the base through a spring 7 for absorbing shock. The support 3 is configured by bending four sides of a flat plate having a plus shape in plan view upward. An operation arm 8 that can swing around the horizontal axis P1 is connected to the first support frame 6 by a pin and a long hole structure. An operation cylinder 9 that swings the operation arm 8 up and down is provided. Provided.

As shown in FIG. 9, the second support frame 17
A pair of holding arms 18 are provided around the horizontal axis P3 at the left and right ends.
Are swingably supported. A horizontally long sponge member 18a is attached to the tip of the holding arm 18, and a spring 19 for urging the left and right holding arms 18 to swing toward the center support 3 is provided. The first support frame 6 has an operation arm 21 that is switched by a motor 20 between a vertical position shown in FIG. 9 and a horizontal position shown in FIG.
Are provided, and both ends of the operation arm 20 and lower ends of the left and right holding arms 18 are connected by a link 22.

(3) Next, FIGS. 11 (c) and 12
It relates to the slide drive structure of the pair of holding members 14 in (A). As shown in FIGS. 6 and 7, a round bar-shaped first guide rail 23 and a plate-shaped second guide rail 24 are provided below the packaging table 2 on both sides of the opening 2a. A boss 14a is fixed to one end of the holding member 14, and the boss 14a is slidably fitted on the first guide rail 23, and the lateral side 14b on the opposite side of the holding member 14 is connected to the second guide rail. It is mounted on the rail 24 and bent downward. A bracket 25 is fixed to the boss 14a of one of the holding members 14, and a double-acting air cylinder 26 is connected to the bracket 25. The balance arm 27 is swingably supported around the vertical axis P4 of the fixed portion.
The roller 27a at one end of the bracket 7 is inserted into the recess of the bracket 25. Then, the linkage rod 29 is extended across the other end of the balance arm 27 and the boss portion 14a of the other holding member 14.
Are erected and connected.

With the above structure, as shown in FIGS. 6 and 7, when the air cylinder 26 in the extended state is operated to the contraction side, the holding member 14 on the right side of the drawing slides to the left on the drawing. At the same time, the balance arm 27 swings clockwise in FIG. As a result, the link rod 29 is pulled to the right in the drawing, and the other holding member 14 is slid to the right in the drawing. Then, as shown in FIG. 8, the upper portion 1 a of the packaging sheet 1 is narrowed down by the pair of holding members 14.

As shown in FIG. 7, a pair of auxiliary holding members 30 swinging in a direction perpendicular to the sliding direction of the holding members 14 are provided below the pair of holding members 14. The pair of auxiliary holding members 30 are supported on the lower side of the holding member 14 so as to be swingable around the longitudinal axis P5 of the fixed portion. The auxiliary holding member 30 is provided with a rectangular long hole 30a, and a pair of rollers 14c provided on the back surface of the holding member 14 is inserted into the long hole 30a.
There is provided a guide plate 31 for supporting so that it does not face downward.

With this structure, when the air cylinder 26 starts to contract from the state shown in FIG. 7 and the pair of holding members 14 start to approach each other, the pair of opened auxiliary holding members 3
0 also starts to approach each other in conjunction with the progress of the roller 14c. When the air cylinder 26 contracts to the stroke end, the holding member 14 and the auxiliary holding member 30 are almost completely closed as shown in FIG. 8, and the upper portion 1a of the packaging sheet 1 is narrowed.

(4) As shown in FIG.
11 (c) and FIG. 12 (a)
As shown in FIG. 7, a control flow until the pair of holding members 14 narrows the packaging sheet 1 will be described. Figures 6,7,
As shown in FIG. 9, at a position slightly above the holding member 14, one light emitter 32a is disposed near one corner on the rear side of one holding member 14, and four light receivers 32b are provided. It is arranged at a predetermined interval in the vicinity of the opposite corner on the rear side of the other holding member 14, and this one light emitting device 32a and four light receiving devices 32b are used to form an optical sensor 3
2 (corresponding to the presence / absence sensor). The light emitting device 32a has a predetermined range in the horizontal direction (a range from the light receiving device 32b at one end to the light receiving device 32b at the other end in FIG. 7).
The detection light is projected with a wide area, and the wide detection light from the light emitter 32a covers almost the entire range of the opening of the holding member 14 in the open state as shown in FIG. It is set. The packaging sheet 1 has transparency, and the intensity of light detected by the optical sensor 32 is
Is set to pass through.

As shown in FIGS. 14 and 15 and FIG. 11A, when the packaging sheet 1 is placed at a predetermined position on the packaging table 2, the worker opens the packaged object A by opening the packaging table 2. Suppose that it is dropped into the hole 2a (step S1) and the start switch is operated (step S2). When the article to be packaged A is on the support base 3 as described above, of the detection light from the light emitter 32a to the four light receivers 32b shown in FIGS. When the light is blocked by the packaged object A, it is determined that the operation is a normal packaging operation (step S3). Accordingly, the process proceeds to step S4, and the pair of holding arms 18 that have been operated to the open position as shown in FIG. 9 are operated to the holding position side (see the state of FIG. 10), and the sponge member 18a of the holding arm 18 is moved. The packaged object A is pressed against the lateral side surface of the packaged object A, and is held on the support 3. Then, the lowering operation of the support base 3 is started (step S5).

As described above, when the support base 3 is lowered while holding the package A on the support 3 by the holding arm 18, the package A does not rise from the support 3. Then, as the to-be-packaged product A is securely lowered, the auxiliary squeezing member 11 sequentially presses the lateral side surface of the to-be-packaged product A and the upper portion 1a of the packaging sheet 1 to the center side. Pressed firmly on the lateral side of the package A,
The upper portion 1a of the packaging sheet 1 is narrowed down to a small size.

As described above, the support base 3 is moved down, and as shown in FIG.
Pass through the position. In this case, in the four light receivers 32b shown in FIG. 7, when the detection light from the light emitter 32a is received by all four light receivers 32b (step S6), the packaged object A on the support 3 is completely removed. When it is determined that the holding member 14 has reached the lower side, the lowering operation of the support base 3 is stopped at the position shown in FIG. 10 (step S7). Thus, the support 3
10 stops at the position shown in FIG. 10, the pair of holding arms 18 are slightly opened (step S8), and the pair of holding members 14 advance to pinch the upper portion 1a of the packaging sheet 1 (step S9). 1 wraps the article to be packaged A.

Then, the upper portion 1a of the packaging sheet 1 is cut by the disk cutter 28 (step S10), the upper portion 1a of the packaging sheet 1 is blown off by the injection nozzle 34 (step S11), and the adhesive tape 4 is attached (step S11). Step S12), pressing of the adhesive tape 4 by the sponge member 16 (Step S13), opening operation of the pair of holding members 14 (Step S14), re-pressing of the sponge member 16 (Step S15), and opening position of the holding arm 18 (FIG. 9 state) (step S16), the support 3
Of the package A from the container (step S17), the support 3
Is raised to the original position (step S18).

As described above, the single packaging is performed. When the single packaging is completed, the next packaging sheet 1 for packaging is pulled out and cut (step S19), and the initial state is obtained. Return to. Then, when the next packaged object A is dropped into the opening 2a and the start switch is operated, the next packaging is performed from steps S3 and S4. By repeating the above operations, packaging can be performed continuously. it can.

(5) Next, as shown in step S19 of FIG.
In the drawer, the configuration of each mechanism will be described.
As shown in FIGS. 1, 2 and 3A, the transparent packaging sheet 1 is wound in a roll shape and supported by a pair of freely rotatable support rollers 13. A receiving table 35 is disposed below a cutter 33 described below. This cradle 3
Reference numeral 5 is provided with a plurality of receiving portions 35a protruding in a tongue shape, and a concave portion 35b into which the cutter 33 is inserted is provided in the receiving portion 35a. The receiving portion 35a is set at a position slightly lower than the base of the receiving stand 35.

Next, a cutter 3 for cutting the packaging sheet 1
3 and the like will be described. As shown in FIGS. 1 and 3A, a support frame 36 is slidably supported on the upper side of the receiving base 35. The support frame 36 has a flat plate shape having a width wider than the width of the packaging sheet 1. The cutter 33
Has been fixed. A total of four plate-shaped pressing members 37 having a width approximately half that of the packaging sheet 1 are provided, two on the front left and right sides and two on the rear left and right sides of the cutter 33. A rubber material 37a is attached to the lower surface of the support frame 36, and each holding member 37 is provided in a state in which it can be moved up and down on the support frame 36 and is urged downward by a spring 37b. As shown in FIG. 3A, when the support frame 36 is in the raised state, the rubber member 37a
Is set so as to project below the lower end of the cutter 33.

Next, a drawer mechanism 38 (corresponding to a drawer) for pulling out the packaging sheet 1 onto the packaging table 2 will be described. As shown in FIGS. 1 and 3A, a pair of support plates 39 are slidably supported along guide rails 2b provided on both left and right sides of the packaging table 2. A single support shaft 40 is erected, and five operation arms 41 are respectively fitted to the support shaft 40 so as to be swingable independently, and a rubber plate 41 is provided on the top surface of the distal end of the operation arm 41.
a is fixed. On the upper side of the operation arm 41, five receiving portions 42 having substantially the same width as the operation arm 41 are provided.
Is fixedly supported. In this case, the receiving portion 4 of the drawer mechanism 38 is located slightly above the receiving base 35 on the cutter 33 side.
2 is set to be located. Then, the five springs 4 that urge each operation arm 41 toward the swinging side toward the receiving portion 42
3 is provided.

The support shaft 40 is rotatably supported by a support plate 39. Arms 40a are fixed to the left and right of the support shaft 40, and one rod 40 extends over the left and right arms 40a.
b is erected and fixed. A link 45 is provided over a fan-shaped gear 44 swingably supported by one support plate 39 and one arm 40a, and a motor 46 for driving the fan-shaped gear 44 is provided. The state shown in FIG. 3 (a) is a state in which the motor 46 is driven to push up the rod 40b to pull down each operation arm 41 from the receiving portion 42. When the lever 40b is pulled down, each operating arm 41 is raised toward the receiving portion 42 by the urging force of each spring 43, and the packaging sheet 1 is clamped.

(6) Next, the operation flow of each mechanism for pulling the packaging sheet 1 onto the packaging table 2 for the next packaging operation in step S19 of FIG. 15 will be described. FIG.
The state shown in (a) is a state where one package is completed,
The drawing mechanism 38 moves to the cutter 33 side in order to draw the packing sheet 1 for the next packing onto the packing table 2. Then, as shown in FIG. 3B, when the drawer mechanism 38 reaches the holding position which is the position of the receiving base 35 and stops, the operation arms 41 and the receiving part 42 of the drawer mechanism 38 move to the respective receiving positions of the receiving base 35. It enters between the parts 35a.
Next, the motor 46 of the pull-out mechanism 38 is operated to operate the rod 4.
0b is pulled down, each operating arm 41 is raised toward the receiving portion 42 by the urging force of each spring 43, and the end portion 1b of the packaging sheet 1 is clamped between each operating arm 41 and the receiving portion 42.

Next, as shown in FIG. 4 (a), with the end 1b of the packaging sheet 1 held therebetween, the pull-out mechanism 38 starts to move rightward on the paper, and pulls out the packaging sheet 1 onto the packaging table 2. To start. In this case, as shown in FIGS. 3A and 2, the support plate 4 is disposed around the horizontal axis P2 at the end of the receiving base 35.
7 is supported swingably up and down. This support plate 47
Has a width substantially the same as that of the support roller 13 and wider than that of the packaging sheet 1, and a friction plate 48 made of urethane rubber is fixed to the tip. The support plate 47 is lightly urged downward by a spring (not shown).
8 is in contact with the outer surface of one support roller 13.

Thus, when the packaging sheet 1 is pulled out by the draw-out mechanism 38, the rotation of the support roller 13 is slightly braked by the contact action of the friction plate 48, and the rotation of the roll-shaped portion of the packaging sheet 1 and the rotation of the packaging sheet 1 are performed. The drawer is slightly braked. Accordingly, the packaging sheet 1 is pulled out in a taut state without being loosened in the middle part. The friction sheet 48 and the support plate 47 prevent the packaging sheet 1 from falling between the support roller 13 and the receiving table 35.

As shown in FIG. 4B, the packaging sheet 1 is transparent, but the marks 1c are printed along the longitudinal direction of the packaging sheet 1 at a predetermined interval corresponding to the type of the article A to be packaged. There is. As shown in FIG. 1, a reflection type optical sensor 50 having a light emitting device and a light receiving device is provided on a frame 49 fixed to the packaging table 2. With the above structure, the packaging sheet 1 is pulled out, and the mark 1c of the packaging sheet 1 reaches the position of the optical sensor 50 as shown in FIG. When the light is reflected by 1c and detected by the light receiver of the optical sensor 50, the drawer mechanism 38 temporarily stops at that position.

In this case, as shown in FIGS. 4B and 2, the tip of the friction plate 48 comes into contact with the outer surface of one of the support rollers 13 to rotate the roll portion of the packaging sheet 1 and to rotate the packaging sheet 1. Since the drawer is slightly braked, the roll-shaped portion of the packaging sheet 1 and the support roller 13 are immediately stopped at the same time when the drawer mechanism 38 is stopped. This prevents the packaging sheet 1 from waving or wrinkling between the roll-shaped portion of the packaging sheet 1 and the pull-out mechanism 38.

Next, as shown in FIG.
The support frame 36 provided with 3 and the holding member 37 is operated to descend. In this case, as shown in FIG. 4B, since the rubber member 37a of the pressing member 37 protrudes below the lower end of the cutter 33, when the support frame 36 is moved down, first, the front and rear of the cutter 33 are moved. Individual holding member 3
7 presses and holds the packaging sheet 1 against the receiving portion 35 a of the receiving stand 35. Next, the cutter 33 enters the concave portion 35b of the receiving portion 35a, and cuts the packaging sheet 1 at a stretch.

When the cutting of the packaging sheet 1 is completed as described above, the support frame 36 is moved up to the original position, and as shown in FIG. Then, the center of the cut packaging sheet 1 is set to the position of the opening 2a of the packaging table 2 (see FIG. 1). After that, each operation arm 41 of the drawer mechanism 38 is pulled down from the receiving portion 42 to release the end 1b of the packaging sheet 1, and the one packaging sheet 1 cut to a predetermined length is placed at a predetermined position on the packaging table 2. Placed on

In this case, as shown in FIGS. 5 and 2, a plurality of projections 51 are fixed to the end of the packaging table 2. The surface of the convex portion 51 has a rough anti-slip treatment, and when the drawer mechanism 38 stops at the position shown in FIG.
Each protrusion 51 is set between the operation arm 41 and the receiving part 42 of the drawer mechanism 38. As a result, the operation arm 4 of the drawer mechanism 38 at the position shown in FIG.
Even if the end 1b of the packaging sheet 1 is released by the pull-down operation of the packaging sheet 1, the end 1b of the packaging sheet 1 rides on each projection 51. Therefore, even if air enters between the packaging sheet 1 and the packaging table 2 and the packaging sheet 1 is slightly lifted up, the packaging sheet 1 does not move from that position due to the contact action with the projection 51.

(7) The description in the above paragraphs (5) and (6) describes ordinary packaging and drawing out of the packaging sheet 1 after this packaging. Next, the packaging sheet 1 is placed on the packaging table 2. A state in which the packaging sheet 1 is pulled out from an initial state in which it is not placed will be described. As shown in FIG. 14, when the packaging sheet 1 is pulled out from the initial state, the start switch is operated without dropping anything into the opening 2a of the packaging base 2 (step S2). In this case, since there is nothing in the support base 3 of FIG. 9, the detection light from the light emitter 32a of the optical sensor 32 is received and detected by all of the four light receivers 32b (step S3) (support This corresponds to a state in which the packaged object A on the table 3 is not detected). Therefore, in such a case, the process proceeds from step S3 to step S20, and as described in the above item (5), the pull-out mechanism 38 or the cutter 3
3 and the like are actuated, and the packaging sheet 1 cut to a prescribed length is placed at a prescribed position on the packaging table 2 (the above corresponds to the second control means).

When the first packaging sheet 1 is placed on the packaging table 2 as described above, the description in the preceding paragraph (4), FIG.
As shown in FIG. 5 and FIG. 11A, the article to be packaged A is dropped into the opening 2a of the packaging table 2 (step S1), and the start switch is operated (step S2). When the article to be packaged A is on the support base 3 as described above, of the detection light from the light emitter 32a to the four light receivers 32b shown in FIGS. When the light is blocked by the packaged object A, it is determined that the packaged object A is on the support base 3 and is in a normal packaging state (step S3). Accordingly, the process proceeds to step S4, where the packaging is performed. When one package is completed, the packaging sheet 1 is then pulled out to the packaging table 2 in step S19 (the above corresponds to the first control means). ).

[Alternative Embodiment] In the above-described embodiment, the packaging sheet 1 is sealed with the adhesive tape 4. However, after cutting the upper portion 1a, the packaging sheet 1 is heated and the packaging sheet 1 is welded to form a package. The present invention may be applied to a packaging device that seals the sheet 1. In addition, instead of the disk cutter 28 as shown in FIG. 12A, the present invention is applied to a packaging apparatus in which the upper portion 1a of the packaging sheet 1 sandwiched by the sandwiching members 14 is heated and melted by a heater (not shown). The invention may be applied.

Incidentally, reference numerals are written in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a packaging device viewed from above.

FIG. 2 is a perspective view showing a receiving table, a support roller, and a convex portion in the packaging device viewed from above.

FIG. 3 is a side view showing a state in which the drawer mechanism is moved to a holding position side and holds an end of a packaging sheet.

FIG. 4 is a side view showing a state where the drawer mechanism starts and stops the drawing of the packaging sheet from the state of FIG. 3 and the cutter cuts the packaging sheet.

FIG. 5 is a side view showing a state in which the drawing sheet has been moved to a predetermined position on the packaging table by the drawing mechanism after the packaging sheet cut after the state shown in FIG. 4;

FIG. 6 is a perspective view showing a slide driving structure of a pair of holding members, and an arrangement state of a light emitter and a light receiver of an optical sensor.

FIG. 7 is a plan view showing a slide driving structure of a pair of holding members, an arrangement state of a light emitter and a light receiver of an optical sensor.

FIG. 8 is a plan view showing a state where a pair of holding members have been closed from the state shown in FIG. 7;

FIG. 9 is a front view of the vicinity of the support table, showing a state in which an article to be packaged is put into the opening of the packaging table and dropped on the support table.

10 is a front view showing a state in which the left and right holding arms hold the article to be packaged from the state shown in FIG. 9 and the support base is operated to descend;

FIG. 11 is a perspective view showing the flow of packaging from the charging of the packaged object into the opening to the narrowing of the packaging sheet by the holding member.

FIG. 12 is a perspective view showing the flow of packaging from the cutting of the upper part of the packaging sheet to the pressing of the adhesive tape by the sponge member.

FIG. 13 is a perspective view showing the flow of packaging from the operation of opening the holding member to the release of the packaged object, and the state in which packaging is completed.

FIG. 14 is a diagram showing a flow in the first half of control of the entire packaging.

FIG. 15 is a diagram showing a flow in the latter half of control of the entire packaging.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 packaging sheet 1a upper part of packaging sheet 2 packaging table 2a opening of packaging table 3 support table 14 holding member 32 presence / absence sensor 38 pull-out means A

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Satoru Ito 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Co., Ltd. in the Sakai Works (56) Reference JP-A-59-74032 (JP, A) JP-A-4- 142211 (JP, A) JP-A-4-142222 (JP, A) JP-A-4-189709 (JP, A)

Claims (1)

(57) [Claims] 1. A packaging table (2) for mounting a packaging sheet (1) and having an opening (2a) into which a spherical object (A) falls.
And the article to be packaged (A) is inserted into 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 article to be packaged (A) is packaged (1).
A supporter (3) configured to support the object to be packaged (A) that has fallen into the opening (2a) while being wrapped by the packaging sheet (1), from below, and the supporter (3) a pair of holding members (14) arranged on both lateral sides
And the pair of holding members (14) are advanced toward the package (A) with respect to the support table (3) supporting the package (A), and the pair of holding members (14) Object (A)
A packaging device comprising packaging operation means for sandwiching and narrowing the upper portion (1a) of the packaging sheet (1) in (1) and wrapping the article to be packaged (A) in the packaging sheet (1); The packaging sheet (1) is placed on the packaging table (2).
Pull-out means (38) for pulling out to a predetermined position and placing it
And a presence / absence sensor (32) for detecting the presence / absence of the packaged object (A) on the support base (3), and an artificial operation tool that is manually operated, and the presence / absence sensor (3).
When the artificial operation tool is operated in a state where 2) detects the article to be packaged (A) on the support base (3), the packaging operation means is operated, and after the packaging is completed, the drawing-out means A first control means for operating (38), and when the artificial operation tool is operated in a state where the presence / absence sensor (32) has not detected the packaged object (A) on the support base (3), Said pull-out means (38) without activating the packaging operation means;
And a second control means for operating the packaging device.