JPH0858716A - Packaging film static electricity-removing device of packaging machine for spherical object such as lettuce, etc. - Google Patents

Abstract

PURPOSE: To effectively remove static electricity from a charged film when a spherical object such as lettuce, etc., dropped from a feeding hole of a top plate while being wrapped by the film, from the top of the top plate. CONSTITUTION: A spherical object A such as lettuce, etc., which is mounted on a film F being pulled out on the top of a top plate 1 is dropped on a receiving body 3 which stands by under a feeding hole 2 while being wrapped by the film F, from the feeding hole 2 on the top plate 1. Then, the receiving body 3 is lowered to a binding position Y, and a part of the film F on the top of the spherical object A is bound by drawing by a binding mechanism at the binding position Y. Then, the bound part is welded and cut to package the spherical object A by a packaging machine for spherical object such as lettuce, etc. For such a packaging machine, a static electricity-removing member 5 is provided on the upper surface side of the top plate 1 with which the film F comes into contact.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for removing static electricity from a packaging film of a spherical product packaging machine for lettuce or the like which can automatically package spherical products such as spherical vegetables such as lettuce and spherical fruits such as pomelo with a film. .

[0002]

2. Description of the Related Art Conventionally, a spherical object such as lettuce, which is placed above a film drawn above a top plate, is wrapped in a film from a supply hole of the top plate and dropped onto a receiver standing by below, In a spherical object packaging machine such as lettuce capable of lowering the receiving body to a bundling position and bundling the film portion above the spherical object by the bundling mechanism at the bundling position so as to squeeze and cut, and to package. As disclosed in Japanese Patent Application No. 5-190213 filed by the company, when a spherical object such as lettuce is placed on the top of the film drawn above the top plate and dropped from the supply hole of the top plate. Is designed so that the spherical object is wrapped in the film while sliding the film on the top plate.

[0003]

However, when the film slides on the top plate while wrapping the spherical object in such a manner, if the film is charged when it is pulled out on the top plate, the top side of the top plate Especially, a small and light spherical object has a problem that it cannot be packaged because the spherical object cannot be wrapped in a film and dropped from the supply hole of the top plate.

[0004]

The present invention solves such a problem as a problem, and when a spherical object is wrapped in a film on a top plate and dropped from a supply hole of the top plate, the charged film is removed from the film. The electrostatic charge can be effectively removed. Therefore, the electrostatic charge removing member is provided on the upper surface side of the top plate in contact with the film.

[0005]

Therefore, when the spherical object is placed on the film which is drawn out and charged on the top plate and when the spherical object is wrapped in the film and dropped from the supply hole of the top plate, the film is Although it will slide on the top plate, the film will contact the antistatic member on the top plate to remove the charge, and the spherical object will be well wrapped in the film and smoothly dropped into the supply hole of the top plate. Will be crushed.

[0006]

The spherical packing machine for lettuce and the like shown in the drawings has a structure similar to that of the conventional structure, but has a caster 7 and a top plate 1 stretched horizontally above the machine body that can be moved. A film roll FR is provided on both sides of the support rolls 8 and 8 above one end side.
A film withdrawing member 9 having a clamp 9a capable of holding the tip of the film F withdrawn from the film roll FR is reciprocally movable in the lateral direction above the top plate 1. , A film cutting member 10 having a cutting blade 10a for cutting the film F drawn by the film drawing member at a predetermined position is provided close to the film roll FR side, and the film cutting member 10 is provided at the central portion of the top plate 1. A supply hole 2 that has a large number of flexible sheets 2a and through which a spherical object A such as lettuce can be dropped from above is provided.

Below the supply hole 2 of the top plate 1, there is provided a fork-shaped receiving body 3 on which a spherical object A wrapped in a film F can be placed so as to be movable up and down. Both guide rods 12, 12 hung vertically from a supporting body 11 to be supported are slidably inserted in a gate-shaped supporting frame 13, and a tip end portion of a crank 15 rotationally driven by a motor 14 and the receiving body 3 and the supporting body 11 are supported. And the receiving member 3 by interlocking and linking via the interlocking rod 16 and rotating and stopping the crank 15.
Is configured to move up and down while stopping at an upper stop position X approaching the lower side of the supply hole 2, a binding position Y below it, and a lower stop position Z below it.

When the receiving body 3 stops at the bundling position Y, the lower part of the film F enclosing the spherical object A is bound by the bundling mechanism 4 so as to be welded and cut. An upper binding sickle 4a consisting of upper binding sickles 18 and 18 having heater supporting portions 17 and 17, respectively, and a lower binding sickle 4b consisting of lower binding sickles 19 and 19,
Further, a discharge port 20 for discharging the film residue FB cut after being packaged is provided on the lateral side of the machine body.

A discharge port 21 is provided on the rear side of the machine body, and a lower part of a plurality of inclined guide rods 23 arranged at parallel intervals is provided on an upper part of a discharge gutter 22 which is obliquely provided inside the discharge port 21. When the receiver 3 is mounted and descends from the bundling position Y to the lower stop position Z, it is possible to pass between the inclined guide rods 23 and to deliver the wrapped package FA onto the inclined guide rods 23. Configure.

A charge removing member 5 is provided on the upper surface side of the top plate 1 in contact with the film F. The charge removing member 5 is
A felt-like cloth containing a copper wire that cannot remove the electric charge of 10 to 20 KV is adhered to the whole or a part of the upper surface of the top plate 1.

The size and shape of the charge removing member 5 may be arbitrary, and the charge removing member 5 may be attached to the top plate 1 as long as it can remove the charge of the film F used for this type of packaging.

Therefore, as shown in FIG. 9, the spherical object A placed above the film F pulled out above the top plate 1.
The film F from the supply hole 2 of the top plate 1 onto the receiving body 3 standing by at the upper stop position X therebelow and dropped.
When the receiver 3 is subsequently lowered, the receiver 3 is wrapped in the film F as shown in FIG. 10, and when the receiver 3 is stopped at the binding position Y, the binding mechanism 4 causes the upper portion of the film F as shown in FIG. 12 is to be welded and cut as shown in FIG. 12, where the cut film residue FB is discharged from the discharge port 20 and then when the receiver 3 descends to the lower stop position Z. In this case, the package FA is delivered onto the inclined guide rod 23 and discharged from the discharge gutter 22 to the discharge port 21 as it is.

In this case, when the spherical object is placed on the film F which is drawn out and charged on the top plate 1 and the spherical object is wrapped in the film F and dropped from the supply hole of the top plate 1. In this case, the film F slides on the top plate 1, but the film F is removed from the charge while being in contact with the charge removing member 5 on the top plate 1.
It slides smoothly without being caught up, and the spherical object A is well wrapped in the film F and smoothly dropped into the supply hole 2 of the top plate 1.

[0014]

As described above, according to the present invention, a spherical object A such as lettuce is formed on the film F which is drawn out and charged on the top plate 1.
When the spherical object A is wrapped in the film F and dropped from the supply hole 2 of the top plate 1 while being placed, the charged film F slides on the top plate 1. Is contacted with the charge removing member 5 on the top plate 1 to remove the charge, and the spherical object A is well wrapped in the film F without being caught on the top plate 1 as in the conventional case.
Since it can be smoothly dropped into the supply hole 2, the packaging workability and efficiency can be further improved without being unpackable as in the conventional case, and it has a feature that it can be suitably implemented.

[Brief description of drawings]

FIG. 1 is a side sectional view schematically showing a main part of an embodiment of the present invention.

FIG. 2 is a perspective view schematically showing the entire packaging machine.

FIG. 3 is a front sectional view schematically showing a main part.

FIG. 4 is a plan view showing a part of the binding mechanism.

FIG. 5 is a plan view showing a part of the binding mechanism.

FIG. 6 is a perspective view showing a part of FIG. 1.

FIG. 7 is a plan view schematically showing the upper surface side of FIG.

8 is a cross-sectional view showing a part of FIG.

FIG. 9 is an explanatory diagram showing a packaging state.

FIG. 10 is an explanatory diagram showing a packaging state.

FIG. 11 is an explanatory diagram showing a packaging state.

FIG. 12 is an explanatory diagram showing a packaging state.

[Explanation of symbols]

 1 Top Plate F Film A Spherical Object 2 Supply Hole 3 Receiver Y Binding Position 4 Binding Mechanism 5 Charge Removal Member

Claims (1)

[Claims] 1. A spherical material A such as lettuce, which is placed above a film F pulled out above the top plate 1, is provided with a supply hole 2 of the top plate 1.
The film F is wrapped and dropped onto the receiving body 3 standing by from below, and the receiving body 3 is lowered to the bundling position Y, and at the bundling position Y, the film F portion above the spherical object A is moved by the bundling mechanism 4. In a packing machine for spherical products such as lettuce that can be bundled by squeezing, cut by welding, and packaged, a charging film removing member 5 is provided on the upper surface side of the top plate 1 in contact with the film F. Removal device.