JPS62220409A - Continuous filling packaging method and device for liquid and viscous material, etc. by low-temperature sealing seal - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention provides a continuous filling and packaging method for liquids, viscous substances, etc. using low-temperature sealing, and its features! This is related to the A position.

(Prior art) Bag making and filling machines using continuous web materials that use plastic materials and heat seal are vertical type, which mainly handles liquids, powders, etc., and horizontal type, which mainly handles QL-articles, etc. etc., are widely known. In addition, in the case of the above-mentioned bag making and filling packaging, in the case of a vertical bag making and filling machine that handles liquids, viscous materials, etc., the plastic material used to package the contents is a plastic material laminated with vinylidene chloride film and polyethylene film or polypropylene film 11, etc. A non-heat shrinkable web material consisting of 14
It was heat sealed at a sealing temperature of 0 to 150°C.

(Problems to be Solved by the Invention) However, it is technically difficult to constantly maintain the heat-sealing temperature of the web material at a constant high temperature of 140 to 150°C as described above, and parts for maintaining the temperature, This requires equipment, etc., which inevitably increases the cost of the device, and because the heat seal roll heated to a high temperature is exposed due to the structure of the device, it is difficult to attach the web material while the device is in operation. Not only is it dangerous to remove, inspect, and repair the equipment, which may reduce work efficiency, but also the shape of the package makes it impossible to package it in a state where it is filled with contents.

Therefore, there is a drawback that it is not possible to obtain a three-dimensional package, that is, a three-dimensional package in which the web material is in a taut state due to being filled with the contents.

The present invention solves the above-mentioned problems and uses low-temperature heat sealing and instant heating for sealed packaging, thereby making it easier to control the temperature of the device, reducing unnecessary parts, equipment, etc. for maintaining high temperatures, and making it easier to maintain the temperature of the device. It is possible to significantly reduce the cost 1-, and to make it possible to safely and easily attach and remove the web material while the device is in operation, and to inspect and repair the device, resulting in a highly workable and highly productive product. To provide a method and apparatus for continuous filling and packaging of liquids, viscous substances, etc., which can produce packages in a three-dimensional packaging form such as injection or blow molding, particularly in a stain-like three-dimensional packaging form. The purpose is to

(Means for solving gap gap) In order to solve the above-mentioned problems, the present invention aims to: (1) Continuously transfer a band-shaped heat-shrinkable packaging material to form a cylindrical body, and fill the cylindrical body with a predetermined amount of The package is filled with contents such as liquid and sealed at the required locations at a low temperature to form a hermetically sealed package, and either one of the longitudinal ends or the center of the sealed package is instantaneously heated for 11 seconds, and then the other is sequentially instantaneously heated. A continuous filling and packaging method for liquids, viscous substances, etc. using a low-temperature seal, characterized by heat-shrinking the packaging material to form a three-dimensional container-like package. ■A guide for continuously forming a band-shaped heat-shrinkable packaging material into a cylindrical body; a nozzle that continuously supplies contents such as liquid or viscous material into the cylindrical body formed by the guide; a pair of low-temperature sealing rolls that sandwich and seal desired parts of the body; and a second roller that heat-shrinks either the longitudinal ends or the center of the sealed package that has been subjected to the low-temperature sealing. The present invention is characterized in that it consists of a first instant heating device and a second instant heating device that instantaneously heats the other parts first and heat-shrinks the packaging material.
It consists of a continuous filling and packaging device for viscous materials, etc.

(Function) When packaging according to the present invention, a band-shaped packaging material is continuously fed out as shown in the first and second figures.

This is bent by a guide 2 to form a cylindrical body A, and a predetermined amount of content B such as a liquid or viscous substance is supplied from a nozzle 4 into the cylindrical body A, and the heat-sealed parts 6, 6
A pair of heat-sealing rolls 3.3 having an outer circumferential surface formed thereon are used to heat-seal a predetermined location on the packaging material to form a heat-sealed portion 9, thereby continuously manufacturing a single package C. . In this case, the heat seal roll, vertical and vertical sheet seal rolls 10.10 are
, 8 as shown in the figure, a single package C
It is also possible to form a vertically long stick-shaped single package as shown in FIG. Next, the single package C is transferred to the next instantaneous heating device 11 (see FIG. 6) by a roll conveyor 12.
b) In the case shown in Fig. 6(b), the first instant heating device 11a covers both ends of the package C in the longitudinal direction, and the second instant heating bag Ftllb covers the other part (center). In this case, the first instant heating device 11a transports the central portion of the package C to the second instant heating bag [11b heats the other portions (both ends in the longitudinal direction)]; The second instantaneous heating devices 11a and 11b heat and shrink predetermined portions for several seconds (1 to 3 seconds), respectively, and the three-dimensional packaged finished product C' as shown in Figure 5 is taken out.

(Example) Figures 1 to 12 show an example of the present invention.
The extrusion lamination is made by extrusion laminating ethylene vinyl acetate copolymer 1b to a thickness of 2oμ to 80μ on one side of acrylonitrile film 1a having a heat shrinkage of 40 to 70% in length and width. It's not something you can do. 2 is a guide, and the above packaging material is bent into a cylindrical shape by the guide 2 to form a cylindrical body A, and a pair of low temperature heat seal rolls installed below -β- (for example, 90 to 100 ℃) to heat-seal predetermined areas around it. 4 is the main body of the heat seal roll; above the main body, a liquid or viscous substance, etc. (for example, drinking water, juice, sauce, cheese, show oil, miso,
A nozzle is provided to supply content B (soap, yokan, etc.), and the amount of content B supplied can be adjusted as appropriate by a predetermined pump (not shown).

5.5 are recesses formed on the outer peripheral surface of the heat seal roll 3.3. Reference numerals 6 and 6 refer to a heat seal portion formed on the circumferential surface of the convex portion other than the recesses 5, 5, 7 a rotary cutting blade for forming an opening cut, and 8, 8 a heat seal portion of the package C. A rotary cutter 10.10 for cutting the seal portion 9 is a low temperature vertical heat seal roll, for example, about 100 to 110°C.

The shape of the package C can be obtained by heat-sealing rolls, etc. By changing the shape of the concave portions 5 and 5, it is possible to obtain any desired shape such as a bottle shape. ], by replacing the stand with something else, it is possible to obtain an elongated stick-like object as shown in Figure 9. The top is an instant heating device.

As shown in FIGS. 1(A) and 1(B), either one of the longitudinal ends or the center of the package C.

Next, the other side is instantaneously heated by the first instantaneous heating device 11a and the second instantaneous heating device 11 and b, respectively, thereby causing the entire packaging material of the package C to undergo heat shrinkage, thereby forming a three-dimensional container-like package. For example, it has the form shown in Figure 12. Note that the first and second instantaneous heating devices 11a.

11b may be used in any order as long as one heats both ends in the longitudinal direction of the package C and the other heats the center, and the heating means may be one using high-temperature gas, one using high-temperature liquid, or other means. (all 90~
(approximately 100°C) can be used. 1
2 is a roll conveyor, 13 is a sprocket, 14
C is the chute and C' is the finished packaged product.

An example of the sealing strength of the packaging material and packaging bag in the present invention is shown below.

Material Acrylonitrile 30μ/EVA 35μ (1
) Heat shrinkage rate and thickness change (2) Heat sealing strength change (effect) According to the present invention, a band-shaped heat-shrinkable packaging material is used.

This is continuously transferred to form a cylindrical body, and the cylindrical body is filled with a predetermined amount of contents such as liquid, and the required locations are sealed with a low temperature seal to form a sealed package, and the longitudinal direction of the sealed package is Since either the ends or the center are instantaneously heated in sequence, the packaging material is heat-shrinked to form a three-dimensional container-like package, which is different from conventional high-temperature heat-seal manufacturing. Compared to bag filling and packaging machines, it is easier to control the temperature of the equipment, and no extra parts or equipment needed to maintain high temperatures can be eliminated, which can significantly reduce the cost of the fruiting equipment and reduce the temperature during equipment operation. Also attaching packaging materials.

Not only does it allow for safe and easy removal, repair, and inspection of equipment, it has very good workability and can significantly improve productivity. As a result of being compressed by about 50%, the rigidity increases and the whole body including the heat sealing part becomes strong, and even though it is a film package, even a long and thin stick-like product can be made almost like an ink or blow-molded product. It has the advantage that a three-dimensional container-like package with a 100% filling degree can be manufactured at low cost.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is an overall front view, and Fig. 2 is a perspective view of the bag making and filling portion. Figure 3 is a partially enlarged sectional view of the packaging material, Figure 4 is a perspective view of the package containing the contents before heat shrinkage, Figure 5 is a perspective view of the finished packaged product after heat shrinkage, and Figure 6 (a) and (b) are the first cases in the case of Figure 1. An explanatory plan view showing each side of the arrangement of the second instantaneous heating device, FIG. 7 is an overall front view of another embodiment in which the package is in the form of an elongated stick, and FIG. 9 is a perspective view of the package containing the contents before heat shrinkage, FIG. 10 is a perspective view of the packaged finished product after heat shrinkage, and FIGS. 11(a) and 11(b) are An explanatory plan view showing each side of the arrangement of the first and second instantaneous heating devices in the case of FIG. 7, and FIG. 12 is a partially enlarged view showing an example of each instantaneous heating device that heats both ends and the center in the longitudinal direction. FIG. 1--Strip-shaped heat-shrinkable packaging material 2--Guide 3.
3-...Low temperature heat seal roll 4...Nozzle
5, 5... Concave part 6, 6... Heat seal part
7... Rotary cutting blade body 8, 8... Rotary cutter 9... Heat sealing part 10°10...
・Vertical heat seal roll ↓1... Instant heating device 11a... First instant heating device! ! Tub・
... Second instant heating device 12 ... Roll type conveyor 13 ... Sprocket 14 ... Chute A ... Cylindrical body B ... Contents C.
...Package C'...Packaged finished product Patent applicant: Komatsu Ltd. Figure 2, Figure 3D, Figure 4, Figure 5, Figure 8, Figure 9, Figure 10

Claims (2)

[Claims] (1) A band-shaped heat-shrinkable packaging material is continuously transferred to form a cylindrical body, a predetermined amount of liquid or other contents is filled into the cylindrical body, and required locations are sealed with low-temperature seals to form a sealed package. At the same time, either one of the longitudinal ends or the center of the sealed package is instantaneously heated, and then the other is sequentially instantaneously heated to heat-shrink the packaging material and form a three-dimensional container-shaped package. Continuous filling and packaging method for liquids, viscous substances, etc. using low-temperature seals. (2) a guide for continuously forming a band-shaped heat-shrinkable packaging material into a cylindrical body; and a nozzle that continuously supplies contents such as liquid or viscous material into the cylindrical body formed by the guide; A pair of low-temperature sealing rolls that sandwich the desired parts of the cylindrical body and perform low-temperature sealing, and either one of the longitudinal ends or the center of the low-temperature-sealed sealed package is instantaneously heated for heat shrinkage. A first instant heating device that heats the other parts and then heat-shrinks the packaging material. Continuous filling and packaging equipment.