JP2758326B2 - 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 an article to be packaged (eg, 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 for mounting the packaging sheet and having an opening into which the packaged object falls is provided, and the packaging sheet is placed on the packaging table and the packaged object is dropped into the opening from above. Thereby, the packaging sheet is squeezed at the outer edge of the opening, and the article to be packaged is supported by the lower support while being wrapped in the packaging sheet. Next, as shown in FIG. 2 and FIG. 5 of the above-mentioned publication after the support base is lowered, a pair of holding members (see FIG. 2 and FIG. In FIG. 5, 12 and 16) advance toward the article to be packaged, and a narrowing operation is performed by sandwiching the upper portion of the packaging sheet.

[0003] In the structure of the above publication, the upper portion of the packaging sheet is sandwiched by the sandwiching member, and then heated by a heater to melt the upper portion of the packaging sheet.
It has been proposed to use a cutter instead of this heater. In this case, the cutter is advanced from the lateral direction along the upper surface of the holding member that sandwiches the upper portion of the packaging sheet to cut the upper portion. After that, the packaging sheet is fastened by heat welding or adhesive tape so as not to open, and one package is completed.

[0004]

In the above-described cutter, after the pair of holding members sandwich the upper portion of the packaging sheet, the cutter at one of the standby positions moves along the upper surface of the holding member. The upper part of the wrapping sheet is cut, and reaches the opposite cut completion position and stops. Then, the cutter again moves in the reverse direction along the upper surface of the holding member and returns to the original standby position, and the above operation is repeated for each single packaging.

[0005] In this case, when the cutter stops at the cutting completion position, compressed air is injected or a swing-type operating arm or the like is operated so that the upper surplus portion of the cut packaging sheet is released away from the cutter. It is conceivable to extrude the upper surplus portion sideways. However, even if the upper surplus part thus cut is pushed out from the cutter, the extrusion is not sufficient, and if a part of the upper surplus part is still attached to the cutter, the cutter moves to the standby position side. In addition, there is a possibility that the upper surplus portion is dragged by the cutter and remains on the cutter as it is or is returned on the holding member, which may hinder the subsequent packaging operation. SUMMARY OF THE INVENTION It is an object of the present invention to prevent a cutting defect in which an upper surplus portion of a cut-out packaging sheet is attached to a cutter and returned when the upper portion of the packaging sheet is cut by a cutter.

[0006]

A feature of the present invention resides in the following configuration in the above-described packaging apparatus. In other words, a packaging table is provided with an opening through which the object to be packaged falls for placing the packaging sheet, and when the object to be packaged is dropped into the opening from above, the packaging sheet is squeezed at the outer edge of the opening and covered. The package is configured so that the package is wrapped in the packaging sheet, and the package advances from the lower side to the support platform that supports the packaged product that has fallen into the opening while being wrapped in the packaging sheet, and the support platform that supports the packaged product. And a pair of clamping members for clamping and narrowing the upper portion of the packaging sheet in the article to be packaged, and cutting the other from the one standby position along the upper surface of the pair of clamping members that clamp the upper portion of the packaging sheet. The cutter moves to the position, cuts off the upper surplus part of the packaging sheet, and returns to the standby position again.At the cutter completion position, the upper surplus part of the cut packaging sheet adhered to the cutter is pressed substantially horizontally. The extruding means and the upper surplus portion of the packaging sheet extruded from the cutter are brought into contact with and engaged with the cutter, and the upper surplus portion of the extruded packaging sheet is moved from the cutter with the return movement of the cutter from the cutting completion position to the standby position. A separating member is provided for forcibly separating the member.

[0007]

When constructed as in the present invention, for example, FIG.
Assume that the cutter 28 at the standby position shown in FIG. 12 advances along the upper surface of the holding member 14 to cut the upper portion 1a of the packaging sheet 1 and stops at the cutting completion position shown in FIG. At the cutting completion position, the cut upper surplus portion 1a 'is pushed out substantially horizontally from the cutter 28 by the pushing means (in the structure of FIG. 12A, compressed air is ejected from the ejection nozzles 15 and 17 and The surplus portion 1a 'has been blown off). When the upper surplus portion 1a 'is extruded in this manner, the upper surplus portion 1a'
Are in contact with the fixed separating member 43. Thereafter, the cutter 28 at the cutting completion position moves in the reverse direction, and returns to the standby position in FIG. In this case, since the extruded upper surplus portion 1a 'is held by the separating member 43, even if a part of the upper surplus portion 1a' is still attached to the cutter 28, the cutter 28 moves to the standby position side. When the upper surplus portion 1a 'is
8 and remains on the separating member 43.

[0008]

As described above, when the cutter returns from the cutting completion position to the original standby position, the upper surplus portion of the cut packaging sheet is forcibly pulled away from the cutter, whereby the cutting is performed. The surplus upper portion did not remain on the cutter or was returned to the holding member, and cutting failure by the cutter could be prevented.
Thereby, the overall work efficiency of the packaging device can be improved.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. (1) First, the overall flow of packaging in the packaging device of the present invention will be described. As shown in FIG. 14A, after the previous packaging is completed, one packaging sheet 1 cut to a predetermined length is placed on the packaging table 2. Then, when the article to be packaged A is dropped into the opening 2 a of the packaging table 2, the article to be packaged A falls into the lower support table 3 while being wrapped in the packaging sheet 1.
In this state, when an operator pushes a start switch (not shown), the support base 3 is lowered to a predetermined position and stopped as shown in FIG. 14B, and the packaging sheet 1 is held at the outer edge of the opening 2a. Is being squeezed. 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 A to be packaged. Make up.

Next, a pair of first holding members 14 (corresponding to a holding member of the present invention), a second holding member 12, and an auxiliary holding member 18 arranged below the packaging table 2 are shown in FIGS.
As shown in FIG. 15 (c) and FIG. 15 (a), the sheet proceeds to the packaging sheet 1 side, and the upper portion 1a of the packaging sheet 1 is narrowed down. Thereby, the packaged object A is almost completely wrapped in the packaging sheet 1. Thereafter, as shown in FIG. 15A, a pair of disk-shaped cutters 28 advance between the first holding member 14 and the auxiliary holding member 18, and the upper portion 1a of the packaging sheet 1 is cut off. When the upper portion 1a of the packaging sheet 1 is cut by passing through the disc-shaped cutter 28, compressed air is ejected from a pair of upper and lower ejection nozzles 15 and 17 (corresponding to an extruding means), and cut to adhere to the cutter 28. The upper surplus portion 1a 'is blown off.

Next, as shown in FIG. 15B, an adhesive tape 4 cut to a predetermined length is attached over the upper end of the packaging sheet 1 and the end of the first holding member 14, and FIG.
As shown in (c), the adhesive tape 4 is pressed from above by the sponge member 19. Thus, the sponge member 19
In a state where the adhesive tape 4 is pressed, the pair of first holding members 14 is opened and the sponge member 19 is pressed again to the package A as shown in FIG.
The adhesive tape 4 is surely adhered to the packaging sheet 1.

One package is thus completed. After that, as shown in FIG. 16 (b), the support 3 is switched to the side-down position, and the package A of the support 3 is moved. It is released to the slide 20 and collected. FIG. 16C shows the state of the packaged object A that has been packaged as described above. Then, the support table 3 is raised to the original position shown in FIG. 14A, and a new packaging sheet 1 for the next packaging is pulled out to the packaging table 2 and cut into a predetermined length.
This returns to the initial state.

(2) Next, the structure for raising and lowering the support 3 in FIG. As shown in FIG. 7, a support base 3 is formed in a bowl shape by a wire and a strip, and the support base 3 is arranged below the circular opening 2 a of the packaging base 2. A support member 21 is attached to a pair of left and right guide rails 16 so as to be vertically slidable.
The support 3 is supported via a spring 22 for absorbing shock. An operation arm 23 that can swing around the horizontal axis P3 is connected to the support member 21 with a pin and a long hole structure, and an operation cylinder 24 that swings the operation arm 23 up and down is provided. ing.

With the above structure, as shown in FIG. 14A, when the worker drops the package A from above into the opening 2a of the packaging table 2, the package A puts the package sheet 1 on. It falls on the support 3 while pulling in. When the operator operates a start switch (not shown), the operation cylinder 2
Since the support 4 is contracted and the support 3 is lowered, the article to be packaged A is wrapped in the packaging sheet 1. The support 3 is moved to the position shown in FIG. 6 and FIG. 2) at the lower position).

In this case, as shown in FIG. 3 and FIG. 6, a pair of optical sensors 25 combining a light emitting device and a light receiving device are fixed to a frame (not shown) extending from the fixing portion. The two light sensors 25 are arranged so as to be located near the upper surface of the first holding member 14.
Are arranged so as to intersect near the center of the support 3. With the above structure, when the support base 3 is lowered from the state shown in FIG. 14A and passes near the first holding member 14, the light detected by the light emitters of the two optical sensors 25 is blocked by the packaged object A. When the support 3 descends to the position shown in FIG. 6, the detection light of the optical sensor 25 reaches the light receiver, and the support 3 is stopped (the detection light of the light emitter of the optical sensor 25 is at least packaged). The packaging sheet 1 has energy enough to pass through the sheet 1, and the packaging sheet 1 has transparency enough to allow detection light to pass through.)

(3) Next, the first holding member 14 will be described. As shown in FIGS. 1, 3, and 6, a round bar-shaped first guide rail 5 and a plate-shaped second guide rail 6 are provided below the packaging table 2 on both sides of the opening 2a.
A boss 14a is fixed to one end of the first holding member 14, and the boss 14a is slidably fitted on the first guide rail 5 and a side portion 14b on the opposite side of the first holding member 14. Is mounted on the second guide rail 6,
The second guide rail 6 is bent downward. The bracket 7 is fixed to the boss 14 a of the first holding member 14, and a double-acting air cylinder 8 is attached to the bracket 7.
Are connected. A balance arm 9 is swingably supported around a vertical axis P1 of the fixed portion, and a roller 9a at one end of the balance arm 9 is inserted into a concave portion of the bracket 7. A linking rod 10 is bridged and connected between the other end of the balance arm 9 and the boss 14 a of the other first holding member 14.

With the above structure, when the air cylinder 8 in the extended state is operated to the contracted side as shown in FIGS. 1 and 3, the first holding member 14 on the right side of the drawing slides to the left on the drawing. The balance arm 9
Swings clockwise in the drawing. Thereby, the link rod 1
0 is pulled to the right in the drawing, and the other first holding member 1
4 is slid rightward on the page. And FIG.
As shown in (1), the upper portion 1a of the packaging sheet 1 is narrowed down by the pair of first holding members 14.

As shown in FIG. 2, when the limit switch 31 detects that the air cylinder 8 has contracted to the limit, the adhesive tape 4 cut to a predetermined length as shown in FIG. Is attached over the upper end of the packaging sheet 1 and the end of the first holding member 14. In this case, as shown in FIGS. 1 and 5, a hard-to-adhere member 26 is provided in a portion of the first holding member 14 to which the adhesive tape 4 is attached. The hard adhesive member 26 is formed of a material such as resin or rubber to which the adhesive tape 4 is hardly attached.
As shown in the figure, a large number of minute quadrangular pyramids are continuously arranged and formed on the surface.

(4) Below the pair of first holding members 14,
The first holding member 14 includes a pair of second holding members 12 that swing in a direction orthogonal to the sliding direction of the first holding member 14. Next, the second holding member 12 will be described. As shown in FIGS. 1 and 2, the vertical axis P of the lower fixing portion of the first holding member 14 is shown.
A pair of second holding members 12 are swingably supported around 2. The second holding member 12 is provided with a long hole 12a in the shape of a letter, and a pair of rollers 14c provided on the back surface of one of the first holding members 14 is inserted into the long hole 12a to form a second holding member. A guide plate 13 is provided to support the device 12 so that it does not face downward (see FIG. 6).

With this structure, when the air cylinder 8 starts to contract from the state shown in FIG. 1 and the pair of first holding members 14 starts to approach each other, the pair of opened second holding members 12 also move forward with the rollers 14c. In conjunction, they begin to approach each other. In this case, the shape of the long hole 12a and the position of the roller 14c are set so that the second holding member 12 starts approaching faster than the first holding member 14. As a result, the second holding member 14 is moved to the second position more than the portion where the first holding member 14 starts to overlap.
A portion where the inner side of the holding member 12 is located at the center, that is, the upper portion 1a of the packaging sheet 1 is moved toward the center inside the second holding member 12, and the first holding member 14 starts to overlap. The upper part 1a of the packaging sheet 1 is touched to prevent the packaging sheet 1 from being caught between the first holding members 14 at this part.

(5) As shown in FIGS. 2 and 15 (a), when the packaging sheet 1 is sandwiched by the first and second sandwiching members 14, 12, a pair of portions near the upper end of the upper portion 1a of the packaging sheet 1 are also provided. The auxiliary clamping member 18 is configured to be clamped. Next, the auxiliary clamping member 18 will be described. As shown in FIGS. 3 and 1, a pair of auxiliary holding members 18 are swingably supported around the longitudinal axis P4 of the first holding member 14. The auxiliary holding member 18 has the holding portion 1
An arm portion 18b is provided diagonally forward from the holding portion 18a, and the auxiliary holding member 18 on the right side of the drawing is urged clockwise by a spring 27, and the auxiliary holding member 18 on the left side of the drawing is counterclockwise. Biased in the direction. FIG.
The state shown in FIG. 1 is a state in which the pin 18c of the auxiliary holding member 18 is in contact with the fixed side cam plate 29 from the upper side in the drawing, and a state in which the pair of auxiliary holding members 18 is opened downward in the drawing. is there.

From the state shown in FIG. 1, a pair of first holding members 1
4 begin to approach each other, the pin 1 of the auxiliary holding member 18
8c moves along the inclined surface at the tip of the cam plate 29, and the auxiliary holding member 18 swings upward in the drawing. As the auxiliary holding member 18 swings, the respective arm portions 18b of the auxiliary holding member 18 overlap with each other and come into contact with the upper portion 1a of the packaging sheet 1 to move the upper portion 1a toward the center. When the holding portions 18a of the auxiliary holding members 18 face each other (see FIG. 2),
The pin 18c of the auxiliary holding member 18 comes off the cam plate 29,
Abuts on the contact portion 30 fixed to the first holding member 14,
The auxiliary holding member 18 is held at the position shown in FIG. In this case, as shown in FIG. 2 and FIG.
The arm portion 18b of FIG. 8 is slightly bent to be inclined upward. Thereby, each arm 1 of the auxiliary holding member 18 is
When the arms 8b start to overlap with each other, it is possible to prevent a situation where the two arm portions 18b contact each other and cannot overlap.

As described above, after the holding portions 18a of the auxiliary holding member 18 are in a state of facing each other (see FIG. 2), the pair of first holding members 14 further move in a direction approaching each other. 2 and FIG. 15A, the packaging sheet 1 is sandwiched by the first and second sandwiching members 14 and 12, and the upper portion 1a of the packaging sheet 1 is sandwiched by the pair of auxiliary sandwiching members 18. In this case, as shown in FIGS. 3 and 4, a rubber or resin elastic material 32 having a vertical width is provided on the holding portion 18 a of one auxiliary holding member 18.
Is installed. Thereby, when the pair of auxiliary holding members 18 hold the upper portion 1a of the packaging sheet 1 as shown in FIGS. 4 and 2, the holding portion 18a of the other auxiliary holding member 18 The upper portion 1a of the packaging sheet 1 is securely held by the elastic member 32 of the one auxiliary holding member 18 and the holding portion 18a of the other auxiliary holding member 18 in a state of facing the elastic member 32.

Thereafter, as shown in FIGS. 4 and 15 (a), the disk-shaped cutter 28 advances between the first holding member 14 and the auxiliary holding member 18, and the upper portion 1a of the packaging sheet 1 is moved. Cut off. As described above, when the upper portion 1a of the packaging sheet 1 is cut off while being pressed by the cutter 28, the lower side of the packaging sheet 1 is held by the first and second holding members 14, 12, and the upper side is held by the auxiliary holding member 18. By doing so, cutting by the cutter 28 is reliably performed. Then, as shown in FIG. 2, as the cutter 28 advances, the support frame 33 of the cutter 28
Since the auxiliary holding member 18 is pushed and held in the posture shown in FIG. 1, the auxiliary holding member 18 does not interfere with the subsequent attachment of the adhesive tape 4 or the like.

(6) Next, the structure near the cutter 28 will be described. As shown in FIGS. 2, 8, 9, and 10, a support plate 34 extends forward from the support frame 33.
A front opening 34a is provided at the front end of the support plate 34, and an opening 3 is provided at the center.
4b is provided. The front opening portion 34a of the support plate 34
A pair of disk-shaped cutters 28 are arranged in a passage portion connecting the opening and the opening 34b so as to overlap with each other.
Is rotatably supported by the support member 36 via a shim member 35 and a rod-shaped support member 36. As shown in FIG. 10, a spring washer 37 is inserted between the upper cutter 28 and the support plate 34 to provide a light rotation resistance to the upper cutter 28 and to separate the shim member 35 having a different thickness. Even if the vertical position of the cutter 28 is adjusted by changing to the shim member 35, the backlash of the pair of cutters 28 is prevented. In the support member 36 of the cutter 28,
The tip on the cutter 28 side and the front and rear corners are rounded so that the upper surplus portion 1 a ′ of the cut packaging sheet 1 does not catch on the support member 36.

The cross section of the cutting edge of the upper and lower cutters 28 is formed as shown in FIG. That is, the first inclined surface 28a with which the upper and lower cutters 28 contact each other is reduced, and the second inclined surface 28b on the opposite side is set large.
However, they are configured to approach each other as much as possible in the vertical direction. As shown in FIGS. 2 and 8, the first plate member 38 and the second plate member 39 surround the opening 34 b of the support plate 34.
And the height of the support member 36 of the cutter 28 and the height of the second plate member 39 are substantially the same as shown in FIG.

As shown in FIG. 8 and FIG.
On the third side, a pair of upper and lower injection nozzles 15 and 17 for injecting compressed air are fixed. The lower injection nozzle 17 passes through an overlapping portion of the pair of cutters 28 in a plan view, and is set substantially horizontally in a side view as shown in FIG. Like the lower injection nozzle 17, the upper injection nozzle 15 passes through the overlapping portion of the pair of cutters 28 in plan view, and is set obliquely downward in side view as shown in FIG. And the upper and lower injection nozzles 15, 17
Between them, a guide member 40 shaped like a letter C in plan view is fixed. As shown in FIGS. 8, 9, and 10, a pair of frames 41 extend from the upper portion of the front end of the support frame 33.
The auxiliary diaphragm member 11 shown in FIG. And the left and right frames 4
1 is provided with a transparent plate 42 made of resin.

(7) Next, the flow of cutting the upper portion 1a of the packaging sheet 1 by the cutter 28 will be described. FIG.
14A is a standby position of the support frame 33 and the cutter 28, and corresponds to the state of FIG. 14A. In this state, as shown in FIG. When the package sheet 1 is dropped into the hole 2 a, the package sheet 1 is squeezed by the auxiliary squeezing member 11, and the article to be wrapped A falls on the support base 3. Then, packaging is performed as shown in FIG. 14 (b) to FIG. 15 (a).

Thereafter, the support frame 33 and the cutter 28 at the standby position shown in FIGS.
4, the support plate 34 advances along the upper surface of the first holding member 14 as shown in FIG. 4, and the upper portion 1 a of the packaging sheet 1 is moved from the front opening portion 34 a of the support plate 34 to the pair of cutters 28. The upper surplus portion 1a ′ of the cut packaging sheet 1 remains in the guide member 40 near the cutter 28 or near the opening 34b of the support plate 34. Then, immediately after the end of the cutting by the cutter 28, the support frame 33 pushes the auxiliary holding member 18 to the posture shown in FIG. During this cutting, the cutter 2
8, the lower side of the upper portion 1 a of the packaging sheet 1 is sandwiched by the first and second clamping members 14 and 12, and the upper side is clamped by the auxiliary clamping member 18, so that the cutting by the cutter 28 is reliably performed. .

As described above, when the support frame 33 and the cutter 28 advance and the cutting is completed, the support frame 3
3 stops at the cutting completion position shown in FIG. Then, at the cutting completion position, the upper and lower injection nozzles 15,
Compressed air is ejected from 17, and the upper surplus portion 1 a ′ of the cut packaging sheet 1 is blown obliquely downward and forward from the cutter 28. As shown in FIG. 12A, a large saw blade-shaped plate-like separating member 43 is fixed to a fixing portion near the cutting completion position of the support frame 33. Thereby, the upper surplus portion 1a ′ of the cut packaging sheet 1
However, if the blow-off is not sufficient when blown obliquely downward from the cutter 28, the upper surplus portion 1a '
Enters between the saw blade portions of the separating member 43. In this case, as shown in FIG. 9, since the transparent plate 42 is provided above the support plate 34, the upper surplus portion 1a 'of the cut packaging sheet 1 does not fly upward, so It is blown off toward the separating member 43 side obliquely downward.
Further, the worker can visually check the state near the cutter 28 through the transparent plate 42 through the opening 2a of the packaging table 2.

When the blowing is completed as described above, the support frame 33 and the cutter 28 at the cutting completion position move in the opposite directions as shown in FIG.
Return to the standby position. In this case, since the blown upper surplus portion 1a 'is held by the separating member 43,
Even if a part of the upper surplus portion 1a 'is still attached to the support frame 33 and the cutter 28, when the support frame 33 and the cutter 28 move to the standby position side, the upper surplus portion 1a' is forcibly moved to the support frame. It is separated from the cutter 33 and the cutter 28 and remains on the separating member 43.

Then, the support frame 33 and the cutter 28 at the standby position after the next packaging is performed are moved to the position shown in FIG.
As shown in FIG. 13 (b), when reaching the cutting completion position, the upper surplus portion 1 of the newly cut packaging sheet 1
a ′ rests on the support plate 34. In this state, the upper surplus portion 1a 'newly cut by the injection nozzles 15 and 17 is blown off toward the separating member 43, and the new upper surplus portion 1a' remaining on the separating member 43 together with the previous upper surplus portion 1a '. The part 1a 'is discharged downward away from the separating member 43.

[Alternative Embodiment] In the above-described embodiment, the injection nozzles 15 and 17 are provided as the pushing means for the upper surplus portion 1a 'of the packaging sheet 1. However, this may be configured as follows. Good. That is, the guide member 40 (corresponding to the pushing means) is slidably attached to the support frame 33 by the pair of left and right rods 44, and the guide member 40 is urged to the retreat side by the spring 45. Then, while attaching the push-pull wire 46 to the guide member 40,
The injection nozzles 15 and 17 (corresponding to pushing means) are attached to the guide member 40. Accordingly, as shown in FIG. 18, when the support frame 33 advances to the left of the paper surface and the cutter 28 cuts the upper portion 1 a of the packaging sheet 1 and reaches the cutting completion position, the fixing portion 47 is connected to the push-pull wire 46. The guide members 40 are slid to the left of the paper with respect to the support frame 33 and compressed air is jetted from the upper and lower jet nozzles 15 and 17. Thus, the pushing operation of the guide member 40 and the injection nozzle 1
The compressed surplus portion 1a 'of the cut packaging sheet 1 is pushed out to the separating member 43 side by the compressed air from 5, 17 and blown off. In the above 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 seal the packaging sheet 1. The present invention may be applied to a packaging device.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a plan view of the vicinity of first and second holding members and an auxiliary holding member.

FIG. 2 is a plan view showing a state in which first and second holding members and an auxiliary holding member have been closed from the state shown in FIG. 1;

FIG. 3 is a perspective view of the vicinity of first and second holding members and an auxiliary holding member.

FIG. 4 is a front view showing a state where the first and second holding members and the auxiliary holding member have been closed from the state shown in FIG. 1;

FIG. 5 is a perspective view showing a part of the difficult-to-adhere member provided in the first holding member.

FIG. 6 is a front view showing a state where the support base and the article to be packaged have been moved down to the lower side of the first and second holding members;

FIG. 7 is a front view showing an elevating structure and the like of a support base.

FIG. 8 is a perspective view of the vicinity of a cutter.

FIG. 9 is a side view of the vicinity of the cutter.

FIG. 10 is a front view of the vicinity of a cutter.

FIG. 11 is a cross-sectional view of a state in which two cutters overlap each other.

FIG. 12 is a perspective view showing a state in which the cutter cuts an upper portion of the packaging sheet, reaches a cutting completion position, blows off the upper surplus portion, and starts returning to the original standby position again.

13 is a perspective view showing a state in which the cutter cuts the upper portion of the packaging sheet from the state shown in FIG. 12, reaches the cutting completion position again, and blows off the upper surplus portion.

FIG. 14 is a perspective view showing a flow of packaging from dropping of the packaged object into the opening to narrowing of the packaging sheet by the first holding member.

FIG. 15 is a perspective view showing the flow of packaging from cutting of the upper part of the packaging sheet to pressing of the adhesive tape by the sponge member.

FIG. 16 is a perspective view showing the flow of packaging from the opening operation of the first holding member to the release of the packaged object, and the state in which packaging is completed.

FIG. 17 is a perspective view of the vicinity of a cutter in another embodiment.

FIG. 18 is a perspective view showing a state in which the cutter of another embodiment shown in FIG. 17 has reached the cutting completion position and has blown off the upper surplus portion of the packaging sheet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packaging sheet 1a Upper part of packaging sheet 1a 'Upper surplus part of packaging sheet 2 Packaging table 2a Opening of packaging table 3 Support table 14 Nipping member 15, 17, 40 Extruding means 28 Cutter 43 Separating member A Packaged object

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Satoshi Ito 64 Ishizukita-cho, Sakai-shi, Osaka Kubota Sakai Works Co., Ltd. (58) Field surveyed (Int. Cl. ⁶ , DB name) B65B 11/00- 11/58 B65B 25/00-25/24

Claims (1)

(57) [Claims] 1. A packaging table (2) provided with an opening (2a) for mounting a packaging sheet (1) and into which an object to be packaged (A) falls, and a package is placed in the opening (2a) from above. When the article (A) is dropped, the packaging sheet (1) is squeezed at the outer edge of the opening (2a), and the article to be packaged (A) is wrapped in the packaging sheet (1). A support (3) that supports the packaged object (A) that has fallen into the opening (2a) while being wrapped in 1) from below, and a support base (3) that supports the packaged object (A). And a pair of holding members (14) for sandwiching and narrowing the upper part (1a) of the packaging sheet (1) in the packaged object (A), and the upper part (1a) of the packaging sheet (1) is Along the upper surface of the pair of sandwiching members (14) sandwiched from one standby position to the other cutting completion position. A cutter (28) that moves to cut off the upper surplus portion (1a ′) of the packaging sheet (1) and returns to the standby position again; and a cutter (28) attached to the cutter (28) at a cutting completion position of the cutter (28). Extruding means (15), (17), (40) for extruding the upper surplus portion (1a ') of the cut packaging sheet (1) substantially horizontally, and the packaging sheet (1) extruded from the cutter (28). The upper surplus portion (1a ') of the extruded packaging sheet (1) is brought into contact with the upper surplus portion (1a') of the packaging sheet as the cutter (28) returns from the cutting completion position to the standby position. A packaging member provided with a separating member (43) for forcibly separating the cutter from the cutter (28).