JPH06286731A - Simplified 3-way sealing machine - Google Patents

Abstract

PURPOSE:To seal an article by coping with the variation of the shape or dimensions of the article to be packaged by a small adjustment for a simplified sealing machine which performs a 3-way sealing to seat a packaging material wrapping an article to be packaged in the vertical direction, and seal the packaging material in the lateral direction with a specified interval, under an attitude in which the sealing in the vertical direction becomes on the bottom. CONSTITUTION:Right and left, a pair of guide members 31, 32 at least the lower parts of which tilt forward in the moving direction of an article to be packaged are arranged on a carrying passage of the article to be packaged, with an interval through which an article to be packaged A can pass. In order to change the interval between the pair of the guide members 31, 32 in response to the width of an article to be packaged, the guide members 31, 32 are attached to a width adjusting mechanism 40, and in order to move the guide members 31, 32 along a longitudinal tilt 33, a position adjusting mechanism 50 is attached to the width adjusting mechanism 40.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention wraps a package in a film-like packaging material and seals its side edges in the vertical direction (longitudinal direction), and laterally (widthwise) in the left and right or front and back of the package.
The present invention relates to a simple type sealing machine commonly referred to as a so-called three-way sealing machine that seals into.

[0002]

2. Description of the Related Art A packaged article packaged by a sealing machine of this type usually has three sealing parts in a longitudinal direction and a transverse direction, and has an outer shape similar to a pillow, and is called a pillow type. The one with the upper vertical seal position is called the reverse pillow type and the one with the lower vertical seal position is called the normal pillow type. However, in order to make a regular pillow, the packaging material must be supplied from the top of the package, whereas in the reverse pillow, the package can be supplied on the packaging material and sealed on top of it, so a simple three-way sealing is possible. Reverse pillow type is common sense in the machine.

Further, the simplified three-way sealing machine is often installed in a small-scale manufacturing facility for producing tofu, fried foods, and other foods, and it is desirable that it is as small as possible, for example, a total length of about 2000 mm is required. There are many things. Under such circumstances, the conventional sealing machine is almost always a dedicated machine, and there is a problem that even if the shape of the package is changed, let alone the size thereof, it is very difficult to modify it.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the problem is that a positive pillow type three-way seal can be easily carried out, and in particular, even if the shape and size of the package are changed. It is to enable the same machine to continue the sealing without any problem if it is within the predetermined range.

The objects to be packaged according to the present invention include not only the above-mentioned tofu but also foods such as confectionery, bread or processed marine products, mushrooms such as shimeji mushrooms, shiitake mushrooms, vegetables, plastic products, and metal products. Examples include products and paper products.

The present invention is characterized in that various kinds of packages can be packaged in a container without being laid down or turned upside down like a reverse pillow type by a simple sealing machine.

[0007]

In order to solve the above-mentioned problems, the present invention provides a system 20 for supplying a film-like packaging material along the moving direction while the transport mechanism 10 moves the package.
Sealing machine for continuously feeding from the top to the bottom, wrapping the package from the top to the bottom with the packaging material, sealing both side edges of the packaging material on the left and right under the packaging and sealing the front and back in the width direction. A pair of left and right guide members 31 and 32, which are arranged at intervals allowing the package to pass through and at least the lower part of which is inclined forward in the moving direction, and the guide members 31 and 32 for applying the packaging material to the package. A guide device 30 that guides the guide is provided on the upper portion of the transport mechanism 10, and a width adjusting mechanism 40 that determines an interval between the guide members 31 and 32 according to the width of the package and a guide member 31 and 32 according to the height of the package are provided. The means for providing the adjusting mechanism 50 for moving along the inclination is taken.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The simplified three-way sealing machine shown in the figure has a transport mechanism 10 which runs back and forth in the middle stage of a machine frame 60, and wraps a package in a packaging material while being moved by the transport mechanism 10.

The front portion 10-1 of the transport mechanism 10 includes front and rear sprockets 11 and 12 and a chain 13 wound around them.
And a feed pin 14 attached to the chain 13 at regular intervals
Have and. Therefore, the package A fits between the pins 14 and is pushed and moved from the rear side. At that time, pedestals 15 on which the package A is placed and slid are provided on the left and right sides of the upper chain 13 (FIG. 3), and on the left and right sides of the package A, linear side plates 16 and 16 along the moving direction. Are provided so that the width (spacing) can be adjusted. Reference numeral 17 is a notch in the side plate width direction, and 18 is a set screw passed through the notch 17, and the side plates 16, 16 adjusted to an appropriate width are fixed.

A supply system 20 for the packaging material 13 is provided above the conveying system path. The supply system extends from the roll R around which the packaging material B is wound to the front of the machine frame, and the rear ends of the side plates 16 and 16. The packaging material B can be placed on the package A by the guide members 31 and 32 at the section. Reference numeral 21 is a supporter of the roll R, 22 and 23 are front and rear rolls on which the packaging material B is hung, and 24 is an adjusting roll for adjusting the orientation of the packaging material B, together with guide members 31 and 32 described later. It can be moved in the same direction as.

The same packaging material B as that used in the conventional three-way sealing machine can be used. They are film-shaped or sheet-shaped and can be continuously supplied, and are supplied in a form in which decoration, display of contents, or other printing is performed.

The guide device for the packaging material B having the guide members 31 and 32 is the side plate 1 of the front transport mechanism 10-1.
It is provided continuously to the rear ends of 6 and 16. The pair of guide members 31, 32 are arranged with an interval (width) that allows the package A to pass through, and have at least a lower hypotenuse 33 that is inclined forward in the moving direction when viewed from the side, and also as an example. The upper half portion also has an upper hypotenuse 34 inclined forward in the moving direction, and the upper hypotenuse 34 faces the adjusting roll 24 (FIG. 4).

The apex 35 where the oblique sides 33 and 34 intersect is a projecting portion for reversing the packaging material B, and the adjusting mechanism 50 is arranged so that the apex 35 can be aligned with the front upper part C of the package A which is moving. Further, a width adjusting mechanism 40 is provided so that the distance between the guide members 31 and 32 can be adjusted according to the width of the package A. In addition, each guide member 31, 3
2 is formed in a pyramid shape having an apex 35 as an end with inclined surfaces 36 and 37 that are inclined forward to invert the packaging material B in the moving direction of the package.

The width-adjusting mechanism 40 has the base members 41 and 42 to which the end portions of the left and right guide members 31 and 32 are attached, and the guide shaft 43 that passes through the base members 41 and 42 so as to move in parallel. , 43 and an adjusting shaft 44 provided in parallel with the guide shaft 43 (FIG. 5). A male screw 45 is formed on the peripheral surface of the adjusting shaft 44, and the male screw is screwed into the screw because it is provided on the base material 41, 42 side, and the guide member 31, 32 is rotated by the rotation of the handle 46 that rotates the adjusting shaft 44. The width (width) of can be adjusted. The adjusting mechanism 40 is attached to the adjusting mechanism 50, and the entire mechanism 40 is moved by the adjusting mechanism 50.

The position adjusting mechanism 50 moves the left and right guide members 31, 32 in parallel with the lower oblique side 33, and the left and right bolt shafts 51, 51 supported by the machine frame 60 in parallel with the oblique side 33. Moving members 52, 5 screwed onto the male screw
2 and a gear set 53, 5 fixed to the upper end of the bolt shaft 51.
It has an adjustment rod 55 for rotating the bolt shaft 51 via the handle 4 and a handle 56 for rotating the bolt shaft 51, and can move the same amount in the same direction in the left and right directions. This coordination mechanism 50
As a result, the left and right guide members 31, 32 can be moved up and down with respect to the rear end slope 19 of the side plate 16 with a substantially constant gap g. Reference numeral 57 indicates the left and right moving members 52,
It is a mounting frame installed between 52, to which the width adjusting mechanism 40 and the packaging material adjusting roll 24 are mounted.

A seal mechanism 61 is provided behind the guide device 30.
Is provided, and the mechanism 61 includes left and right tapered nipping portions 62 and 63 that align both side edges of the packaging material B bent at the lower oblique sides 33 of the packaging material A to the lower side of the packaging material A, It has a pair of front, rear, left and right sealing rolls 64, 65, 66, 67 arranged in front of it, and heats the packaging material in the longitudinal direction while holding and pulling both side edges of the packaging material B. During this time, the package A in the middle of the packaging is transferred to the intermediate transport mechanism 10-2.
It moves on the sliding plate 68.

Behind the seal mechanism 61 is the rear transport mechanism 10.
-3 is provided, and the mechanism 10-3 is composed of two sets of front and rear conveyors 71 and 72, between which a cutter 70 is provided so as to be vertically movable together with a sealer that heat-seals the packaging material in the lateral (width) direction. . A pressure roller 73 is provided on the front conveyor 71 to push air out of the bag before sealing, and a pressing member 74 presses the package to be cut off on the rear conveyor 72.

In the sealing machine thus constructed,
If the circumference of the package A in the front shape is within the width of the packaging material B, the interval between the left and right guide members 31, 32 is adjusted by the width adjusting mechanism 40, and the front upper part C of the package A is adjusted. By adjusting the positions of the vertices 35 of the guide members 31 and 32 to, the adjustment can be completed and the seal can be performed as it is. At this time, as shown in FIG. 4, when the package A is changed from a wide and low profile to a narrower and higher profile A ′, the guide members 31, 32 are moved by the positioning mechanism 50 to the lower hypotenuse 33. Since it moves in parallel to the front side upper part C ′ of the package A ′, the folded end of the packaging material B is moved to the package A ′.
Can always be matched to the upper surface of. For this reason, the guiding system path of the packaging material B is ideally maintained at all times, and the space between the packaging material B and the packaging material A does not become large, so that the subsequent sealing is performed smoothly and the adjustment is minimized. It should be noted that each unit is driven by the illustrated motors 75 to 79 and an unillustrated motor or the like.

[0019]

Since the present invention is constructed and operates as described above, a positive pillow type three-way seal can be easily carried out by a simple sealing machine, and in particular, a guide member 31 for guiding the packaging material. , 32 are adjusted according to the width of the package by the width adjusting mechanism 40, and the guide member 3 is adjusted by the adjusting mechanism 50 according to the height of the package.
Since 1 and 32 are moved and adjusted along the lower oblique side 33, even if the shape and size of the package are changed, if it is within a predetermined range, it is possible to easily adapt and seal, which is a remarkable effect. Play.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a simplified three-way sealing machine according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is an enlarged front view of a main part of the same.

FIG. 4 is an enlarged side view of the same.

FIG. 5 is an enlarged plan view of the same.

Claims (3)

[Claims] 1. A supply system 20 for supplying a film-like packaging material along a moving direction while a package is moved by a transport mechanism 10.
Sealing machine for continuously feeding from the top to the bottom, wrapping the package from the top to the bottom with the packaging material, sealing both side edges of the packaging material on the left and right under the packaging and sealing the front and back in the width direction. And a pair of left and right guide members 31 and 32 which are arranged at an interval through which the package can pass and at least a lower portion of which is inclined forward in the moving direction, and which guide member applies the packaging material to the package. A guide device 30 for guiding the guides 31 and 32 is provided on the upper portion of the transport mechanism 10, and a width adjusting mechanism 40 that determines an interval between the guide members 31 and 32 according to the width of the package, and a guide member 31 according to the height of the package. A simplified three-way sealing machine, characterized in that it is provided with a positioning mechanism 50 for moving the and 32 along the inclination. 2. The transport mechanism 10 includes guide members 31, 32.
Has a pair of left and right linear side plates 16 and 16 provided in parallel with the left and right side surfaces of the package in order to feed the package between the guide members 31 and 32 in accordance with the distance between the side plates 16 and 16.
The simplified three-way sealing machine according to claim 1, wherein the distance between the two is adjustable. 3. The adjusting mechanism 40 is attached to a member constituting the adjusting mechanism 50, and the adjusting mechanism 50 is attached to a machine frame 60 of a sealing machine so that the position of the adjusting mechanism 40 is changed for each adjusting mechanism 40. The simplified three-way sealing machine according to claim 1, which is configured.