JPH0528037Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a bag making machine that automatically makes bags of buffer envelopes containing a cushioning material.

[Conventional technology]

Various types of buffer envelopes are known, in which an inner envelope part made of heat-fusible cushioning material is placed inside an outer envelope part made of heat-fusible outer paper, and these buffer envelopes come in various types. Bags are made according to the procedure.

[Problem that the invention attempts to solve]

However, when considering the conventional bag making process,
Although the bag-making process usually involves manual labor, there are some work processes that are difficult to automate depending on the content of the work.

Therefore, an object of the present invention is to provide a novel buffer envelope bag-making machine that automates tasks that are considered difficult to automate.

[Means for solving problems]

The present invention is a bag-making machine for buffer envelopes in which an inner envelope part made of a heat-fusible cushioning material is placed inside an outer envelope part made of a heat-fusible outer envelope paper, and which is overlapped with the above-mentioned exterior paper and one side thereof. a composite-forming heat-sealing device for heat-sealing the cushioning materials at both edges thereof to form a thin plate-like composite; A half-folding mechanism for folding the folded composite into a bag, and a heat-sealing mechanism for bag making that provides a plurality of heat-sealing sections at appropriate intervals in a direction perpendicular to the folded composite body. The half-folding mechanism includes a positioning section that positions the composite at a predetermined position;
a half-folding plate that presses the central portion of the positioned composite from a direction perpendicular to the composite in parallel to both edges; and a pair of folding conveyors that sandwich and fold the pressed composite from the central portion. The above object has been achieved by providing a bag making machine for buffer envelopes, which is characterized by having the following features.

〔Example〕

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the buffer envelope bag making machine of the present invention shown in the drawings will be described below.

1 to 3 schematically show a heat-sealing device 1 for forming a composite body, and FIGS. 5 and 6 schematically show a half-folding heat-sealing device 3 according to the present invention. The bag machine is
It is composed of both of these devices 1 and 3.

The heat-sealing device 1 for forming a composite body is for forming a composite body C consisting of a heat-fusible exterior paper A and a heat-fusible cushioning material B, as shown in FIG. A and the cushioning material B stacked on one side thereof are heat-sealed at both edges to form a thin plate-like composite C. That is, as shown in FIGS. 1 to 3, the thermal fusing apparatus 1 for forming a composite body includes a placing section 11 on which the outer packaging paper A and the cushioning material B are placed in a stacked state, and Outer paper A placed on
Exterior paper stoppers 12d and 12e that abut against both edges d and e, respectively, to position them at predetermined positions.
, cushioning material stoppers 13d, 13d that position the cushioning material B stacked on the exterior paper A in a predetermined position by contacting one edge d thereof, and one edge of the positioned exterior paper A and the cushioning material B. It is mainly composed of a pair of heat seal bars 14d and 14e that heat seal the portion d and the opposing edge e opposing the portion d to form heat seals D and E, respectively.

To explain the thermal fusion device 1 for forming a composite body in more detail, the mounting portion 11 is formed by the top plate of the pedestal 15. As shown in FIG. In addition, the above-mentioned outer paper stopper 1
2d and 12e are each made of a long body, and are attached so as to be able to approach and separate from each other on the loading section 11 so as to be able to accommodate exterior sheets A of different sizes. One outer paper stopper 12d serving as a reference on one edge side is made smaller, and the other outer paper stopper 12d on the other edge side of the loading section 11 is made smaller.
2e is increased. The cushioning material stoppers 13d, 13d are for positioning the cushioning material B to be superimposed on the outer wrapping paper A, and are positioned inside both ends of the outer wrapping paper stopper 12d on the reference side. 11 so that it can be freely entered and exited.
Further, the heat seal bars 14d and 14e are
The tips of the movable arms 17d of the fixed side heaters 16d fixed on one edge of the mounting section 11, respectively;
The movable heater 16e is provided at the tip of the movable arm 17e of the movable heater 16e, which is provided on the mounting portion 11 so as to be able to approach and separate from the fixed heater 16d. In addition, in FIGS. 1 to 3, 18d is a hydraulic cylinder that rotates the movable arm 17d of the fixed side heater 16d, and 18e is a hydraulic cylinder that rotates the movable arm 17d of the fixed side heater 16d.
This is a hydraulic cylinder that rotates the movable arm 17e. Moreover, 19e is a movable side heater 16e.
This is the handle that moves the . Further, 20 is a composite discharge conveyor that is provided above the placing section 11 so as to be able to move up and down. In addition, in FIG. 4, 21d is a fixing bolt for the outer paper stopper 12d on the reference side;
22d is a glass sheet run on the heat sealing surface of the heat seal bar 14d to protect the cushioning material B during heat fusion, 23d is a winding shaft of the glass sheet 22d, and these fixing bolts 2
1d, glass sheet 22d and winding shaft 23d
is similarly provided on the movable heater 16e side.

Further, the semi-folding heat fusion device 3 is configured to
As shown in FIG. 10, a half-folding mechanism 5 is used to fold the folded composite body C into a first
As shown in FIG. 1, the bag-making heat-sealing mechanism 7 is provided with a plurality of heat-sealing sections G, G, .

As shown in FIGS. 5 and 6, the half-folding mechanism 5 of the half-folding heat-sealing device 3 includes positioning parts 51, 51 for positioning the composite C at a predetermined position, and the positioned composite C a half-folding plate 52 that presses the central part f of the composite body C from a direction perpendicular to the composite body C in parallel to the one edge part d; and a plurality of pairs of upper and lower pairs that sandwich the pressed composite body C and fold it from the central part. The folding conveyors 53, 53, . . . and 54, 54, . . . are the main components.

To explain the half-folding mechanism 5 in more detail, the positioning section 51 is constituted by a stopper that holds one heat-sealed edge D of the composite C and vertically positions it at a predetermined position. can be adjusted up and down by appropriate means. Further, the half-folding plate 52 is driven by a cylinder 58, and presses the center part f of the vertically positioned composite body C to press the pair of upper and lower presser guides 59,
The center part f of the composite C is pushed into the horizontally long slit part 60 between the parts 59 and 59. Further, the folding conveyors 53, 53, . . . and 54, 54, . It is composed of endless conveyors arranged in parallel at appropriate intervals in the direction, and cooperates with the slit section 60 to move the composite C so that its cushioning material B overlaps and the heat-sealed sections D and E overlap. It is designed so that it can be folded in two exactly. In addition, these folding conveyors 53, 53... and 54, 54
. . . and 54 ′, respectively consisting of endless conveyors.
It is composed of 54'...

Further, the bag-making heat-sealing mechanism 7 in the half-folding heat-sealing device 3 includes the endless conveyors 53', 53', . . . in the half-folding mechanism 5, as shown in FIGS. A plurality of pairs of heat seal bars 71, 71, . . . , and 7 are arranged in parallel, each pair being vertically movable between 54', 54', and 7.
It is composed mainly of 2, 72... Heat seal bars 71, 71... and 72, 72...
are provided on a pair of frames 73 and 74 which are moved up and down by appropriate means, respectively, and the composite body C folded as described above is moved in a direction perpendicular to the folded part f as shown in FIG. A plurality of heat-sealed parts G, G... are provided at appropriate intervals. In addition, the heat seal bars 71, 71... and 7
2, 72, . . . are provided on the frames 73, 74, respectively, so that the intervals can be adjusted as appropriate. Incidentally, reference numerals 75 and 75 are moving handles of the heat seal bar.

In addition, the half-folding heat-sealing device 3 includes the conveyors 53', 53'... and 54', 5.
A cutter 8, located between the rear end portions of each pair of
8... is provided, and the central part of the heat-sealed parts G, G... heat-sealed by the bag-making heat-sealing mechanism 7 is placed along the heat-sealed parts G, G... In Figure 11, H,
H...As shown, it is cut so that a buffer envelope can be obtained.

Next, a description will be given of the manner in which the buffer envelope of the embodiment having the above configuration is made by the bag making machine. Each part of the apparatus is adjusted in advance according to the sizes of the outer wrapping paper A and cushioning material B to be supplied and the size of the buffer envelope to be made.

For bag making, first, the outer wrapping paper A is placed on a predetermined position of the mounting section 11 of the heat-sealing device 1 for forming a composite body, and both edges d and e of the outer wrapping paper A are placed on the outer wrapping paper stopper 12.
d, 12e and supplied. Next, attach one edge of the cushioning material B to the cushioning material stopper 13.
d, 13d so as to be superimposed on a predetermined position of the wrapping paper A. These exterior paper A
The supply of the buffer material B may be performed manually or automatically using a conveyor device (not shown).
After that, the positioned exterior paper A and cushioning material B
When one edge d and the opposite edge e are heat-sealed using heat seal bars 14d and 14e as shown in FIG. 4, heat-sealed parts D and E are formed on both edges.
A composite C as shown in FIG. 9 is obtained. mounting device 3
It is supplied to the positioning parts 51, 51 of the half-folding mechanism 5 at.

The composite C supplied to the positioning parts 51, 51 of the half-folding mechanism 5 is placed in parallel to the one edge D with the heat-sealed edge D held by the positioning parts 51, 51. The center part f is vertically positioned to face the half-folded plate 52. After this positioning is completed, the half-folding plate 52 is operated, and the central portion f of the positioned composite body C is pressed parallel to the one edge portion D from a direction perpendicular to the composite body C. The pressed composite C is introduced between multiple pairs of folding conveyors 53, 53... and 54, 54... from the center part f in a sandwiched state, and the heat-sealed parts D and E overlap. It is folded together as shown in FIG.

The folded composite C is conveyed between a plurality of pairs of conveyors 53', 53', . While 54', 54'... are stopped, the heat seal bars 71, 71...
...and 72, 72..., as shown in FIG. 11, the folded composite C has heat-sealed parts G, G... in the direction perpendicular to the folded part f, spaced appropriately. Multiple strips are formed. When this heat fusion is completed, the conveyor conveyors 53', 53'...
and 54', 54'... are driven, and the cutters 8,
8..., the center portions of the heat-sealed parts G, G... are drawn along the heat-sealed parts G, G... as shown in FIG.
As shown, the cut end is cut to form a buffer envelope.

7 and 8 show another embodiment of the half-folding heat-sealing device 3 of the buffer envelope bag-making machine of the present invention, and the half-folding heat-sealing device 3 of this embodiment is The structure is the same as that of the above-mentioned embodiment except that the supply section for the composite C in the half-folding mechanism 5 is changed. That is, in the case of this embodiment, the composite C is supplied and placed on the inclined plate part 55 having the horizontally long slit part 54, and the positioning part 51
It can be fixed at an appropriate height above 5. Then, the half-folding plate 52 pulls the center part f of the composite C by the cylinder 58 and inserts the composite C into the slit part 54.
The center part f of the frame is pulled in. And also folding conveyors 53, 53... and 54,
54... The passage between them is slightly bent. Further, in FIGS. 5 and 6, 9 is a product holder.

It goes without saying that the buffer envelope bag-making machine of the present invention is not limited to the embodiments described above. For example, the heat seal bars 71, 71... and 72, 72... The number of pairs may be two pairs in total. Furthermore, it goes without saying that there are no restrictions on the type, size, overlapping manner, etc. of the outer wrapping paper A and the cushioning material B used in the bag-making machine for buffer envelopes of the present invention.

[Effect of idea]

As mentioned above, the bag-making machine for buffer envelopes of the present invention is capable of forming a composite by partially heat-sealing the outer wrapping paper and the cushioning material, accurately folding the composite, and heat-sealing for bag-making. can be done easily and reliably,
It has a tremendous practical effect, contributing greatly to the automation of bag making for buffer envelopes.

[Brief explanation of drawings]

The drawings are for explaining an embodiment of the present invention, and FIGS. 1, 2, and 3 are side views schematically showing a thermal fusion device for forming a composite body according to an embodiment of the present invention, respectively; A plan view and a front view, FIG. 4 is an enlarged side view of the main part for explaining the heat fusion mode by the heat fusion device for forming a composite body, and FIGS. 5 and 6 are each an embodiment of the present invention. 7 and 8 are a side view and a plan view schematically showing a half-folding heat fusion device in another embodiment of the present invention, respectively, 9th
The figure is a perspective view of the composite, FIG. 10 is a perspective view of the folded composite, and FIG. 11 is a perspective view of the composite after heat sealing for bag making. DESCRIPTION OF SYMBOLS 1... Heat fusion device for composite formation, 3... Half folding heat fusion device, 5... Half folding mechanism, 7... Heat fusion mechanism for bag making, 51... Positioning section, 52... Half Folded plate, 5
3,54...Folding conveyor, A...Exterior paper, B...
...Buffer material, C...Composite, D, E, G...Heat-sealed portion.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A bag-making machine for buffer envelopes in which an inner envelope part made of heat-fusible cushioning material is placed inside an outer envelope part made of heat-fusible outer wrapping paper, which A heat fusing device for forming a composite body for forming a thin plate-like composite body by heat fusing the outer wrapping paper and the above-mentioned cushioning material layered on one side thereof at both edges thereof, and a heat fusing device for forming a thin plate-like composite body; A half-folding mechanism that folds the above-mentioned edges so that they overlap, and a bag-making device that provides the folded composite with a plurality of heat-sealed sections at appropriate intervals in a direction perpendicular to the folded sections. a half-folding heat-sealing device having a heat-sealing mechanism; the half-folding mechanism includes a positioning part for positioning the composite at a predetermined position; and a positioning part for positioning the composite at a predetermined position; A buffer envelope characterized in that it has a half-folding plate that presses parallel to both edges from a right angle direction, and a pair of folding conveyors that sandwich the pressed composite and fold it from the center. Bag making machine. (2) The heat-sealing device for forming a composite body contacts a mounting section on which the outer wrapping paper and cushioning material are placed in a stacked state, and both edges of the outer wrapping paper placed on the mounting section. a stopper for the outer wrapping paper that contacts and positions the outer wrapping paper in a predetermined position; a stopper for the cushioning material that contacts one edge of the cushioning material stacked on the outer wrapping paper and positions the cushioning material in a predetermined position; a pair of heat seal bars for heat-sealing one edge of the outer packaging paper and the cushioning material, and an opposing edge opposite thereto; 2. A bag making machine for buffer envelopes according to claim (1) of claim 1, wherein a heat seal bar for heat sealing is capable of coming into contact with and separating from another heat seal bar. (3) The folding conveyor of the half-folding mechanism in the half-folding heat-sealing device is composed of a plurality of endless conveyors arranged in parallel at intervals, and the folding conveyor of the half-folding mechanism in the above-mentioned half-folding heat-sealing device is The manufacturing of the buffer envelope according to claim (1) of the utility model registration, wherein the heat sealing mechanism has a plurality of pairs of heat seal bars arranged in parallel, one upper and lower pair, which move up and down between each of the endless conveyors. bag machine. (4) The buffer envelope bag making machine according to claim (3) of the utility model registration, wherein the interval between the heat seal bars arranged in parallel is adjustable. (5) The bag-making machine for buffer envelopes according to claim 1, wherein the positioning part of the half-folding mechanism is a stopper that comes into contact with one heat-sealed edge of the composite. (6) The half-folding heat-sealing device also includes a cutter that cuts the center portion of the heat-sealed portion heat-sealed by the bag-making heat-sealing mechanism along the heat-sealed portion. A bag-making machine for buffer envelopes as set forth in claim (1) of the utility model registration claim.