JPH0920305A - Spherical article wrapping device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spherical article wrapping device capable of reducing adhesion of the rest of cut films to bundling blades, and assuring the excellent thermal deposition for a long time. SOLUTION: In a spherical article wrapping device which achieves the thermal deposition of a restricted opening of a peripheral edge part of a film to cover a spherical article and is provided with bundling blade bodies 41, 42, to cut the rest of the film on the side opposite to the spherical article, the bundling blade bodies are formed of heated blade parts 43, 44 opposite to a contact part of the restricted opening and heat insulation holder parts 45, 46 to hold the heated blade parts 43, 44 to make the region on the side opposite to the contact part of the restricted opening as the heat insulated region, or a heat insulation plate to cover the region on the side opposite to the contact part of the restricted opening in the bundling blade bodies is fitted to the bundling blade bodies 41, 42.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spherical object packaging apparatus for packaging spherical objects such as spherical vegetables such as lettuce and spherical fruits such as pomelo with a film.

[0002]

2. Description of the Related Art Conventionally, as a spherical object packaging device, a spherical object is put on a flexible film which has been developed on an input port, and a peripheral portion of the film covering the put spherical object is narrowed down by scissors-like members. It is known that a mechanism is used to squeeze, the squeezed aperture is heat-welded with a bundling blade body equipped with a heater, and the remaining film on the side opposite to the spherical object is cut and then carried out.

[0003]

However, when the remaining portion of the film is cut by the binding blade body, the remaining portion of the cut film is entirely heated by the heater and has a high temperature. The upper surface of the binding blade body. The problem that it adheres to the parts and the like, the binding blade becomes dirty, it is difficult to continue good heat welding processing, it also causes a bad smell, and complicated maintenance is required to remove the deposited matter each time. Etc.

An object of the present invention is to provide a spherical object packaging apparatus which can reduce the remaining of the cut film from adhering to the bundling blade body and can assure a good heat welding process for a long time.

[0005]

Therefore, in order to achieve the above object, the invention according to claim 1 is, as shown in FIG.
As shown in FIG. 5, in the spherical object packaging apparatus provided with binding blades 41 and 42 for heat-sealing the squeezing port that narrows down the peripheral edge of the film covering the spherical object and cutting the remaining film on the side opposite to the spherical object. , Heating blade portions 43, 44 facing the binding blade bodies 41, 42 to the contact portion of the aperture, and the heating blade portions 43, 4
4 is formed, and the heat insulating holder portions 45 and 46 are used as the heat insulating areas on the side opposite to the contact portion of the aperture.

The invention described in claim 2 has the same preconditions as the invention described in claim 1, as shown in FIG.
Insulating plates 47 and 48 for covering the regions of the binding blades 41 and 42 on the side opposite to the contact portion of the aperture in the binding blades 41 and 42 are attached, and the insulating plates 47 and 48 and the binding blades 41 and 42 are attached. A void is formed between and.

[0007]

According to the first aspect of the present invention, the blade portions 43, 4 facing the contact portions of the apertures in the binding blade bodies 41, 42.
Since only 4 is heated and the heat insulating holder parts 45 and 46 are made into heat insulating regions, even when the remaining film is cut by the bundling blades 41 and 42, the remaining part of the cut film is the bundling blade. Good work can be continuously performed without adhering to 41 and 42.

According to the second aspect of the invention, the binding blades 41,
The area of the diaphragm 42 on the side opposite to the contact portion is a heat insulating plate 47, 4
Since it is covered with 8, even when the remaining film is cut by the binding blades 41, 42, the remaining portion of the cut film does not adhere to the binding blades 41, 42 and is continuously good. Can perform various tasks. Moreover, since a gap is formed between the heat insulating plates 47, 48 and the bundling blade bodies 41, 42, the heat of the bundling blade bodies 41, 42 heated by the heater is easily released from the gap. The heat conduction from the bundling blades 41, 42 to the heat insulating plates 47, 48 can also be reduced, the heat insulating effect of the heat insulating plates 47, 48 can be enhanced, and the remaining bundling blades of the cut film can be improved. Adhesion to the bodies 41 and 42 can be further prevented.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 1 denotes a main body casing, and a top plate 10 thereof has an inlet 11 for a spherical object W such as lettuce. Inside the charging port 11, a charging sheet 11a made of rubber, synthetic resin or the like having a central hole and radial slits is provided. Reference numerals 12 and 13 denote rollers for mounting the roll R of the thin transparent film F,
The front roller 12 has a pair of left and right side stoppers 1.
2a and 12a, and collars 12b and 12b that allow the print bulging portion in the center of the film F to escape. 14 is a top plate 1
1 is a deployment mechanism that reciprocates on 1 to spread the film F on the input port 11, and includes a clamp claw 14a that holds the end of the film F, and the input sheet 11a by the previous packaging operation.
It is equipped with a fan 14b for blowing off the film residue that gets caught in the air. Reference numeral 15 denotes a cutting mechanism for cutting the developed film F in the width direction, which includes a cutter inside and
A cut mark sensor 15a for detecting the cut mark FB printed in black or the like is provided at the end of the film F.

16a and 16b are wrapping switches that start the wrapping operation by pressing them simultaneously, 16c is an emergency stop switch for urgently stopping the wrapping operation, and 16d is a diaphragm adjusting dial for vertically adjusting the upper end narrowing position of the film F. , 16e are reset buttons operated after the packaging is interrupted. Reference numeral 17 denotes a carry-out port for carrying out the spherical object after packaging, and 18 denotes a film residue discharge port. Reference numeral 19 is a caster for movement.

Inside the main body casing 1, as shown in FIGS. 2 and 4, a narrowing mechanism 2 comprising a lower shutter 21 and an upper shutter 22 for narrowing down the peripheral edge E of the film F into which the spherical object W has been dropped. A pair of left and right bundling blades 41, 42, which are located between the lower shutter 21 and the upper shutter 22 which form the narrowing mechanism 2 and cut by heat welding the narrowed aperture narrowed down by the narrowing mechanism 2, are described. A packaging mechanism 3 including a binding mechanism 4 and a drive mechanism 5 for operating the packaging mechanism 3 are provided. Further, as shown in FIGS. 3 and 4, a pedestal 63 having a fork-shaped receiving piece 63b is provided inside the main body casing 1.
A receiving position A for receiving the spherical object W dropped from the input port 11 and a working position B for squeezing and binding the film F.
And an elevating mechanism 6 that moves the receiving piece 63b to the carry-out position C where the spherical object W is delivered to the carry-out port 17 via the comb-shaped piece 17a.

A lower shutter 21 which constitutes the narrowing mechanism 2.
As shown in FIG. 2, the flat cut portion 21 having substantially the same shape.
A support pin 200 provided with a claw-shaped plate-shaped right scissor piece 21A and a left scissor piece 21B having a and 21b, and the base hole 210 of each mounting plate 21C and 21D is provided in the frame 100 in the main body casing 1. It supports freely to rotate. A cam groove 215 composed of a long slant groove 211 and a short parallel groove 214 is provided on each of the mounting plates 21C and 21D so as to cross each other, and the drive pin portion 55 of the drive mechanism 5 is provided.
Is fitted.

The upper shutter 22 has a claw-shaped plate-shaped right scissor piece 22A having an extremely narrow crevice portion 22a and a crab-claw shaped plate-shaped left scissor piece 22 having a narrow width crevice portion 22b.
B, and the base hole 220 of each mounting plate 22C, 22D
Is rotatably supported by the support pin 200,
A cam groove 225 composed of a single inclined groove is provided on each of the mounting plates 22C and 22D so as to cross each other, and the drive pin portion 5
5 is fitted.

The binding mechanism 4 includes binding blades 41 and 42 which will be described later.
The binding blades 41 and 42 are attached to the lower portions of the support rods 310 and 320 extending from the attachment plates 22C and 22D of the upper shutter 22.

The drive mechanism 5 is a speed reducer 51 with an electromagnetic clutch that is interlocked with a motor 50, and a sprocket 52 and the reducer.
a crank cam 52 that interlocks via a, 52b, 52c and a chain 52d, a swing arm 53 that is connected to the crank cam 52 through a connecting rod 53a and swings around a shaft 53b, and is fixed to the upper end of the guide arm 54a. The rocking seat 54 is guided along with a drive pin portion 55 projecting from the rocker seat 54, and the drive pin portion 55 is reciprocated along a straight line. The drive pin portion 55 has ball bearings 55a, 55a for improving sliding with a cam groove provided on each mounting plate.
b, 55c and 55d are fitted together.

As shown in FIG. 3, the elevating mechanism 6 includes a speed reducer 60 with an electromagnetic clutch which is interlocked with the motor 50 via pulleys 60a and 60b and a belt 60c, and a sprocket 61a and 61b and a chain 61c. A cam plate 61 that interlocks with each other, a swing link 62 that abuts on the cam surface 61d and swings around a shaft portion 62a, a pedestal 63 that is connected to the swing link 62 via a connecting link 63a, and this pedestal Guide rod 6 protruding below 63
A gate-shaped support column 64 for guiding 3c and 63d is provided.

Incidentally, in FIG. 3, 7 is at the carry-out position C.
It is an air blowing blower that discharges a film peripheral edge E, which is a residue cut along with heat welding, toward the discharge port 18.

In the above-mentioned configuration, in the embodiment shown in FIG. 5, the pair of left and right binding blades 41, 42 constituting the binding mechanism 4 are heated by the heating blades 43, 4 facing the contact portion of the aperture.
4, and the heat-insulating holder portions 45 and 46 that hold the heating blade portions 43 and 44 and that make the anti-contact portion side region of the throttle opening a heat insulating region.
It is formed from and. That is, the heating blade portion 4
3 and 44 are made of metal such as a blade material having good thermal conductivity, and inside the square bar-shaped heating blade body 43a, 44a,
The rod-shaped heaters 43e, 43e are embedded along the rectangular rod-shaped longitudinal direction, and at the surfaces of the heating blade body 43a, 44a facing the heat insulating holder portions 45, 46,
Fitting protrusion 43 that fits into the heat insulating holder portions 45 and 46
While forming b and 44b, a blade for welding and cutting the squeeze port is formed on the side facing the squeeze port. In FIG. 5, a concave female blade 43d is formed on the right heating blade body 43a.
And a convex male blade 44c is formed on the left heating blade body 44a.

The heat insulating holder portions 45 and 46 are
The heating blade portions 43, 44 in the thick plate-shaped heat insulating holder portion bodies 45a, 46a are made of a material that blocks heat from the heating blade portions 43, 44 such as a silicon material or Teflon material.
Fitting grooves 45b and 46b for receiving the fitting protrusions 43b and 44b are formed on a surface facing the support rods 310 and 320 on the upper surface of the heat insulating holder body 45a, 46a on the side opposite to the heating blade portion. Steps 45c, 4 for attaching to
6c, and the support rod 3 is formed on the stepped portions 45c and 46c.
A pair of through holes 45d, 46d for screwing into the 10, 320 are provided.

Then, the fitting protrusions 43b and 44b of the heating blade portions 43 and 44 are fitted into the fitting grooves 45b and 46b of the heat insulating holder portions 45 and 46, and the step portions of the heat insulating holder portions 45 and 46 are fitted. 45c, 46c to the support rod 3
These holder parts 4 are brought into contact with the lower surfaces of 10, 320.
5, 46 and the support rods 310, 320 between the through holes 45.
It is attached by inserting screws into d and 46d.

Further, in the embodiment shown in FIG. 6, the bundling blades 41, 42 are integrally formed without forming the bundling blades 41, 42 from the heating blades 43, 44 and the heat insulating holders 45, 46. Insulating plates 47, 48 are attached to the bundling blades 41, 42 so as to cover regions of the bundling blades 41, 42 on the side opposite to the contact portion of the aperture. That is, the bundling blade bodies 41 and 42 shown in FIG. 6 are made of a metal such as a blade material having good thermal conductivity, and are in the shape of a thick plate.
Rod-shaped heaters 41e and 42e are embedded in parallel in the interiors of 1a and 42a, respectively.
The first step portion 41 is provided on the upper side of the side 42a facing the aperture.
b, 42b, and the first step portions 41b, 42
A blade for welding and cutting the aperture is formed below b. In FIG. 6, a flat female blade 41d is provided on the right binding blade body 41a and a projection is provided on the left binding blade body 42a. Each of the male blades 42c is formed. The heat insulating plates 47, 48 are arranged so that the upper plates 47a, 48a for covering the upper surfaces of the bundling blade bodies 41a, 42a and the upper male plates 47a, 48a move downward in the protruding male blades 42c and the flat female blades 41d. The upper plate 4 is composed of side plates 47b and 48b that extend in a curved manner.
7a and 48a include the binding blade bodies 41a and 42, respectively.
A pair of stop holes 47c and 48c are provided at positions where the heaters 41e and 42e inserted in a can be fixed together.
The heat insulating plates 47 and 48 are inserted into the fixing holes 47c and 48c, and the insertion ends are also screwed into the heaters 41e and 42e inside the binding blade bodies 41a and 42a. It is fixed to the binding blade body 41a, 42a together with the heaters 41e, 42e. In this case, a gap is formed between the side plates 47b, 48b and the binding blade body 41a, 42a due to the formation of the first step portions 41b, 42b, so that the heaters 41e, 42e heat the gap. The bound blade body 41,
The heat of 42 easily escapes and the heat insulating plates 47, 4
The conduction to 8 can be reduced and the heat insulating effect can be enhanced. In addition, the bundling blade body 41a, 42a has a second step portion 41 for attaching to the support rod 310, 320.
e, 46e are formed, and the stepped portions 45e, 46e are engaged with the lower surface of the support rods 310, 320 to form the support rods 31.
The binding blade body 4 is obtained by inserting a screw from the upper surface of 0, 320 into the through holes 41f, 42f formed in the stepped portions 45e, 46e.
Attaching 1, 42 to the lower portions of the support rods 310, 320 is similar to the above.

Next, the operation of the spherical object packaging apparatus thus constructed will be briefly described.

First, when the spherical object W is loaded, the pedestal 63 descends from the receiving position A to the working position B, and the shutter 2
1, 22 starts the closing operation and starts the packaging operation. With the closing operation of the shutters 21, 22, the binding blades 41, 42
After the heat-sealing and cutting of the squeeze port are performed and the bundling is completed, the shutters 21 and 22 are opened, the pedestal 63 is lowered to the unloading position C, and the unloading process is started. At the same time during this carry-out process, the next film F is unfolded on the loading port 11 by the film unfolding mechanism 14.
By the movement of the unfolding mechanism 14, the film residue cut by the fan 14b is blown down to below the input port 11, and at the same time, the air blower blower 7 blows air from the side, and the film residue is discharged to the discharge port 18. It is.

In this operation, the binding blades 41,
As shown in FIG. 5, a pair of heating blade portions 43 and 44 facing the contact portion of the aperture and a pair of heating blade portions 43 and 4 are provided.
4 is formed and is formed by a pair of heat insulating holder portions 45 and 46 having a non-contact portion side region of the aperture as a heat insulating region, it faces the contact portion of the binding blades 41 and 42 of the aperture. Only the blade portions 43 and 44 are heated, and the portion to which the film is likely to adhere after cutting the remaining portion of the film is a heat insulating area. Therefore, even when the remaining portion of the film is cut by the binding blades 41 and 42, the portion is cut. The rest of the film can be discharged to the discharge port 18 by the wind blown by the air blowing blower 7 without adhering to the binding blades 41 and 42.

Further, as shown in FIG. 6, the binding blades 41 and 42 are attached to the binding blades 41 and 42, respectively.
When the heat insulating plates 47 and 48 for covering the areas of the apertures 1 and 42 on the side opposite to the contact portion are attached, the heat insulating plates 47 and 4 are provided.
According to 8, since the upper surfaces of the binding blades 41 and 42 to which the film is likely to adhere after cutting the remaining portion of the film are heat insulating regions, even when the remaining portion of the film is cut by the binding blades 41 and 42, it is cut. The rest of the film can be discharged to the discharge port 18 by the wind blown by the air blower blower 7 without adhering to the binding blades 41 and 42.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a spherical object packaging device according to the present invention.

FIG. 2 is a perspective view of a narrowing mechanism and a bundling mechanism that constitute the packaging mechanism.

FIG. 3 is a perspective view of the lifting mechanism.

FIG. 4 is a sectional view of the spherical object packaging device.

FIG. 5 is a perspective view showing a binding blade.

FIG. 6 is a perspective view showing another binding blade body.

[Explanation of symbols]

41, 42; binding blades, 43, 44; heating blades, 45,
46; heat insulating holder part, 47, 48; heat insulating plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Naohatsu Ito 1-32, Chayamachi, Kita-ku, Osaka City, Osaka Yanma Agricultural Machinery Co., Ltd.

Claims (2)

[Claims] 1. A spherical object packaging device provided with a binding blade body (41, 42) for heat-sealing a squeezing port narrowing down a peripheral edge of a film covering a spherical object and cutting the remaining film on the side opposite to the spherical object. A heating blade portion (43, 44) that faces the contact portion of the aperture with the bundling blade body (41, 42), and this heating blade portion (43, 44)
And a heat-insulating holder part (45, 46) having a region opposite to the contact portion of the aperture as a heat-insulating region. 2. A spherical object packaging device provided with a binding blade (41, 42) for heat-welding a squeezing opening narrowing a peripheral edge of a film covering a spherical object and cutting a film remaining portion on the side opposite to the spherical object. The binding blades (41, 42) are attached to the binding blades (41, 4).
Insulating plate (4) covering the area on the side opposite to the contact portion of the aperture in (2)
(7, 48) and attach this heat insulating plate (47, 4)
8) A spherical object packaging device, characterized in that a void is formed between the bundling blade body (41, 42).