JPH072201A - Method and device for continuous packaging - Google Patents

Abstract

PURPOSE:To package fruit, vegetables, candies, etc., automatically, continuously and quickly, and reduce the labor drastically. CONSTITUTION:As a continuous packaging method and device using a cylindrical and long sized synthetic resin net which is kept under a flat plate form, a net 1 being pinched by a chuck 2 is carried to chucks 4 (there are plural checks 4 for continuous operation) which are fixed on a chain conveyor 3, and the net 1 is pinched by a friction receiving plate 5 and friction piece 6 which are located this side of the chuck 4. Then, the leading end on the upper side of the net 1 is retracted by a friction of the friction piece 6, and the leading end on the lower side is pinched by the chuck 4. Then, the chuck 2 is returned to the original position, and the rear end of the net 1 is cut after a heat-welding to make a net bag 14. Then, the net bag 14 is moved as it is, and air is blown in the opening of the net bag 14 to expand the net bag 14, and an object to be packaged is packed in the net bag 14 by the descending and opening of the discharging ports of a fixed hopper and auxiliary hopper. Then, the opening of the net bag 14 is closed, and the chuck 4 is released to obtain a packaged article 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for continuously packaging fruits, vegetables, confectionery and the like using a synthetic resin cylindrical net.

[0002]

2. Description of the Related Art Conventionally, since synthetic resin nets have been easily made, the bags using the nets have been packed with fruits, vegetables and confectionery. Since the mouth is contracted, it had to be expanded to fill the items to be packaged, which was done mostly by hand, and there was no automatic mass processing by machine. .

[0003]

DISCLOSURE OF THE INVENTION The present invention uses a long net made of a synthetic resin to form bags continuously,
At the same time, it is an object of the present invention to provide an efficient method and apparatus for filling a packaged item and sealing the mouth to automatically take out the packaged item.

[0004]

[Means for Solving the Problems] That is, the continuous packaging method of the present invention is (a) a cylindrical long synthetic resin net folded into a flat plate is sandwiched by a net supply chuck and pulled out. It is fixed across a chain conveyor consisting of two rows of chains, and is used to feed the net so that the tip of the net reaches the lower chuck of the net in the released state. Move the chuck to the front of the friction receiving plate in front of the lower chuck of the net, rub the net on the friction receiving plate with the friction piece in the direction opposite to the tip of the net, retract the upper end of the net, If the lower tip of the net is clamped by the lower chuck of the net, release the chuck for feeding the net and return it to the original position to clamp the net, and then feed the net at the bottom of the supplied net. The area around the chuck is heated and welded and then cut to form a net bag,
After returning the position of the friction piece to the original position, (b) the lower chuck of the net holding the net bag is moved to the fixed hopper by the operation of the chain conveyor, and the lower chuck of the net is moved. Air is blown from the air nozzle until the mouth of the net bag spreads near the tip of the hanging net bag on the non-sandwiched side, and an auxiliary hopper is attached to the mouth of the net bag. It is lowered and inserted, the auxiliary hopper is further opened, and the product to be packaged is supplied from the fixed hopper through the auxiliary hopper,
After returning the position of the auxiliary hopper to the original state, (c) the mouth of the net bag is sealed, and (d) the package for the lower side of the net is released and taken out.

The continuous wrapping apparatus of the present invention is a chain for feeding a net and a chain consisting of two rows of chains, which uses a cylindrical long synthetic resin net folded in a flat plate shape. Conveyor, a plurality of lower chucks of the net fixed across the conveyor, a combination of a friction receiving plate and a friction piece for retracting the upper end of the net, and heating of the net. It comprises a welding tool, a cutting tool, a fixed hopper, an auxiliary hopper which can move up and down and expand, an air nozzle, and a closure for the mouth of the net bag.

Since the long synthetic resin net used in the present invention has a tubular shape that is folded into a flat plate shape, the mesh has a certain degree of widening, and a synthetic resin material having appropriate rigidity is used. Used.

As a result of various attempts to make the upper end of the net retract in the present invention, as a result of the net made of synthetic resin and the friction coefficient between the net and the friction material, Paying attention to the fact that the difference can be used, the upper and lower nets are sandwiched between the friction receiving plate and the friction piece, and when the friction piece rubs the upper net in the direction opposite to the tip, the lower net receives the friction. Since they are fixed by a plate, they found that the upper net retreats as a result of the two nets sliding on each other. Rubber is suitable as the friction material.

Further, it has been found that the mouth of the formed mesh bag can be expanded by air pressure. However, even if an article to be packaged is supplied from the upper hopper to it, it is found to be unsuccessful, and the auxiliary hopper We found that we had to insert it in the mouth and further expand it.

The chain conveyor may be constructed by a rope instead of the chain. As a sealing tool for the mouth of the mesh bag, a heating and welding tool that is used to make the mouth of the mesh bag easy to seal is suitable, but an adhesive tape is wrapped around the mouth or a fitting for fitting is fitted. Also includes equipment.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the drawings with reference to the following embodiments. The net 1 is supplied from a drum around which a long tubular synthetic resin net 1 that is folded into a flat plate is wound, through the fence part, and a constant tension is applied to the net 1. To do so. The net 1 is sandwiched between a pair of air chucks (left side in the drawing) as a net feeding chuck 2, and the net feeding chuck 2 moves to the right side in the drawing to pull out the net 1. And the tip of the net 1 is
The chuck 4 for the lower side of the net in the released state using the spring chuck fixed on the conveyor 3 is reached. Here, the net 1 is placed in front of the chuck 4 for the lower side of the net.
The friction receiving plate 5 made of rubber and the friction piece 6 in which a rubber rod-like member is attached in a T-shape are positioned so as to sandwich, and when the friction piece 6 is rubbed in the direction opposite to the tip of the net 1, Since the upper tip moves backward, the lower tip of the net 1 is clamped by the lower chuck 4 of the net. At this stage, the chuck 2 for feeding the net
Is released and returned to the original position (left side in the figure), and the net 1 is again clamped at that position. The vicinity of the net-supplying chuck 2 at the bottom of the supplied net 1 is cut with a cutting tool 8 and heat-welded with a heating welding tool 7 using electric heat to obtain a net bag 14, and based on the position of the friction piece 6. return.

Subsequently, the lower chuck 4 of the net holding the net bag 14 by the operation of the chain conveyor-3.
Is moved to the place where the fixed hopper-9 is, the net bag 14
Hangs down, but its mouth is contracted. There
When air is blown from the nozzle 11 to the vicinity of the tip of the net bag 14 on the side where it is not clamped, the mouth of the net bag 14 spreads unsteadily. If the auxiliary hopper 10 is immediately lowered and inserted into its mouth and the auxiliary hopper 10 is further opened, the fixed hopper 9 can easily supply a predetermined amount of the article to be packaged through the auxiliary hopper. The auxiliary hopper-10 is returned to its original position.

Further, by moving the lower chuck 4 of the net holding the net bag 14 to which the article to be packaged is sandwiched, the net bag 14 is moved.
Is placed on the guide plate 12. The vicinity of the mouth of the net bag 14 is heated and welded by the heat welding device 7 while pressing the guide bar 13 to close the mouth of the net bag 14.

The resulting packaged product 15 is taken out by releasing the chuck 4 for the lower side of the net.

[0014]

Industrial Applicability According to the continuous packaging method and apparatus of the present invention, a cylindrical and long synthetic resin net is folded into a flat plate, and fruits, vegetables, confectionery, etc. are automatically and continuously and rapidly. Being packaged, it can save labor force significantly.

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram of a continuous packaging method and apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Net 2 Chuck for supplying net 3 Chain conveyor 4 Chuck for lower side of net 5 Friction receiving plate 6 Friction piece 7 Heat welding tool 8 Cutting tool 9 Fixed hopper-10 Auxiliary hopper-11 Air nozzle 12 Guide plate 13 Guide bar 14 Net bag 15 Packaged product

Claims (2)

[Claims] 1. A chuck (2) for feeding a net (1), which is a cylindrical and long synthetic resin net (1), which is folded into a flat plate
It is fixed by straddling it on a chain conveyor (3) consisting of two rows of chains and is released, and the net is attached to the lower chuck (4) of the net. (1)
So that the tip of the mesh reaches, the chuck (2) for supplying the mesh is moved to the front of the friction receiving plate (5) in front of the chuck (4) for the lower side of the mesh, and the chuck (2) on the friction receiving plate (5) is moved. The net (1) is rubbed with the friction piece (6) in the direction opposite to the tip of the net (1), the upper end of the net (1) is retracted, and the lower end of the net (1) is moved to the end of the net (1). If the net (1) is sandwiched by the lower chuck (4), the net-supplying chuck (2) is released to return it to its original position, and the net (1) is sandwiched, which corresponds to the bottom of the supplied net (1). The vicinity of the net-supplying chuck (2) is heat-welded and cut to form a net bag (14). After returning the position of the friction piece (6) to the original position, (b) the net bag (14) is sandwiched. The lower chuck (4) of the net being moved to the fixed hopper (9) by the operation of the chain conveyor (3), and the lower chuck (4) of the net is moved. Eya in to the mouth of the net bag that is clamped suspended Amibukuro the tip vicinity of the clamping are not even side (14) (14) widens - nozzle (1
Air is blown from 1), the auxiliary hopper (10) is lowered and inserted into the mouth of the expanded net bag (14), and the auxiliary hopper (10) is further expanded to fix the packaged product in a predetermined amount. After supplying from the hopper (9) through the auxiliary hopper (10) and returning the position of the auxiliary hopper (10) to the original state,
(C) The mouth of the mesh bag (14) is sealed, and (D) Packaged product (1
A continuous packaging method comprising removing 5) by removing the chuck (4) for the lower side of the net. 2. A chain conveyor comprising a net-supplying chuck (2) and two rows of chains, which uses a cylindrical and long synthetic resin net (1) folded in a flat plate shape.
(3), a plurality of lower nets (4) fixed over the net, and a friction receiving plate (5) for retracting the upper end of the net (1). Combination of friction pieces (6), heating welding tool (7) and cutting tool (8) for mesh (1)
, A fixed hopper (9), an auxiliary hopper (10) that can move up and down and expand, an air nozzle (11), and a net bag (1).
4) A continuous wrapping device including a mouth closure.