JPH0613386B2 - A device for forming a bulge formation part made of a synthetic resin film on a mount - Google Patents

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to a continuous bag-equipped bag manufacturing machine for forming a series of bulging bags by pasting a synthetic resin film in a wave pattern on a series of mounts. The present invention relates to a bulge forming device for a mount of a film.

Background of the invention: For example, parts management used by specialists for repairs and other general-purpose products that are packaged without particularly improving the packaging exterior can be effectively managed. In order to do so, it is necessary to wrap each product individually to protect the product (commodity) and to reduce the packaging cost so that it can be handled conveniently. Conventionally, blister type packaging has been adopted as one means. Has been done. However, since the blister type requires a mold, it must be specified, and its packaging must be manually attached to the mount, which is unsuitable for a wide variety of small amounts (cost of construction). And model are bulky).

Therefore, the inventor of the present invention (Japanese Patent Application No. 60-218705) has made a synthetic resin at a required pitch on a paperboard of an appropriate thickness that can be cut into a rectangular shape with a required size according to the object to be packaged. Thus, a continuous packaging body in which a film is attached in a corrugated form and a bulging bag portion is formed on a mount, and a method for producing the same are obtained.
As a means for forming a bulge of the film by this method, in order to operate it rationally and effectively, a film of synthetic resin that is thin for many minutes is excessively moved on the paperboard to form a bulge. It is necessary that the operation of the mechanism can be performed smoothly and that the mechanism be simplified so that the operation does not become unreasonable, and as a result of intensive research, the present invention has been completed.

The object of the invention: The present invention is such that the synthetic resin film is over-fed along the upper surface of a paperboard traveling at an appropriate speed and a predetermined volume is obtained at a predetermined interval, and the bags are sequentially formed on the paperboard by the film. An object of the present invention is to provide a film bulge forming device in which the forming bulge portion can be formed by adhering the partition portion.

Structure of the Invention: A continuous paperboard having a required width coated with a thermoplastic resin is intermittently fed at a constant speed on a machine table, and a synthetic resin film is intermittently fed over the paperboard over a required length by a predetermined length. Then, in a device for forming a bulge by attaching a wavy film on a paperboard with a required pitch, a table surface is formed on a lower side of a pair of brackets standing upright on both sides of the paperboard running section on a machine table. A pair of film feed pieces are arranged in parallel with each other so as to be able to move back and forth, and between both film feed pieces, a receiving plate made of a magnetic material so that the film can be clamped and over-supplied, and a magnet with one end free A sheet having a sheet is provided, and a film over-feeding mechanism is configured by intermittently advancing and retracting the feed piece by a link mechanism so that the feeding piece moves forward and backward by a predetermined dimension. , H A heat seal piece that moves up and down after supplying the film and a supporting and driving means thereof constitute a partition seal mechanism, and the film feed piece is provided in front of the partition seal mechanism until the heat seal piece operates. Interlockingly, when the heat-sealing piece descends, a handle bar arranged transversely so as to handle and evacuate the bulging film supplied first from the sealing position, its supporting arm, and a pair of guide pieces supporting these. It is configured by combining with an operation cam mechanism.

As a means for driving the film oversupply mechanism and the partition section sealing mechanism in conjunction with each other according to the present invention, a cam arranged on one drive shaft is used to operate each mechanism in a predetermined order, and electrically operated. It is also possible to adopt a method in which the fluid pressure cylinder is operated individually at an electrically controlled timing.

Operation: The device of the present invention utilizes the magnetic holding action of the receiving plate and the magnet sheet, which are installed between the pair of feed pieces, after the continuous paperboard is intermittently fed for the required length and stopped. The film on the upper surface of the paperboard, and oversupply the paperboard.
When the feed piece moves to the most forward position, the handle bar that has moved together with the feed piece is moved forward from the seal position by the seal piece by the plate cam attached to the seal piece support horizontal connecting member with the built-in heater. , The over-feed film up to the point where the seal is adhered first is handled with the handle bar to flatten the sealing position, and the film that bulges due to over-feed is saved so that it does not come into contact with the seal piece, and the sealing operation is performed. After that, while the seal piece is rising, the handle bar and the feed piece are retracted to stand by. By repeating such an operation in sequence, a corrugated bulging portion is formed on the upper surface of a continuous paperboard with a required pitch by the synthetic resin film. Therefore, the bulging formation portion can be continuously sealed to form a packaging bag on the mount by heat-sealing the bottom formation portion in the subsequent steps.

Thus, the volume of the bulging portion of the film can be arbitrarily set by adjusting the moving distance (oversupply amount) of the feed piece.

Example: An example of the device of the present invention will be described in detail below with reference to the drawings. FIG. 1 and FIG. 2 are schematic views of a continuous bag manufacturing machine incorporating the device of the present invention. 1) is a table framed at an appropriate height, with the upper surface horizontal.
(2) is attached, and the continuous paperboard (A) and the synthetic resin film (F) are fed onto the table (2) from one end of this machine base (1), and the film is supplied from the supply side. The oversupply mechanism (10), the partition seal mechanism (20), the partition finish seal mechanism (40), and the bag bottom seal mechanism (41) are arranged in this order at the upper part of the machine base with required intervals. . The drive means of each mechanism are related to operate in the order set by the cam disposed on the drive shaft (5) arranged inside the machine base (1). The paperboard (A) supplied on the table (2) has the necessary items printed on the back side in advance, and is provided with perforations (A2) for cutting perpendicular to the continuous direction with the required pitch,
It is assumed that a coating layer made of a thermoplastic resin is formed on the upper surface, and a feed hole (A1) is formed on both longitudinal sides or one side with a predetermined pitch. The film
(F) has a thickness that is durable as a bag, and has a width that is inside the position where the paper feed hole (A1) is punched in the paper board (A) and is fed from the reel (F '). Also the continuous paperboard
(A) is a pin sprocket (3), which is arranged on the supply side and the delivery side of the machine base (1) respectively, and the feed hole (A1) is engaged with the pins of (3), and intermittently at a constant speed. I'm trying to make progress.

Thus, the film (F) overfeed mechanism (1
As a bulge forming device (30) for the mount of the film, which is composed of the (0) and the partition seal mechanism (20), as shown in FIGS. 2 and 3, a table is provided on the machine base (1). (2) Paperboard
(A) A pair of brackets (11) and (11) are erected parallel to each other on both sides of the moving position so that the brackets (11) and (11) are erected parallel to each other. ) The bearings (11 ') and (11') that support the support shaft (13) of the feed piece (12) so that it can reciprocate in parallel with the film flow direction are attached, and each bracket (11) is attached. On the upper part of (11), a backbone of a feed piece operation link plate (14) formed in a triangular shape (not limited to this) is pivotally attached. Film feed piece (12)
The ends (1) of each bracket (11) as described above.
1 ') (11') is attached to the tip of the support shaft (13), and vertically elongated pieces of appropriate thickness hung vertically below the ends of the corner member (14) that crosses over the table (2). And its tip (12 ')
Is sticking out for a long time. In the lower part between the symmetrically arranged film feed pieces (12) (12), a metal net or a receiving plate made of a lightweight magnetic material in a state in which bending is unlikely to occur is formed in parallel with the table (2) surface. 16) is installed and both feed pieces (12) (12)
Mounting piece with an angled cross-section over the corner member (15) at the upper part of the space
The magnetic sheet (16) made of a synthetic resin sheet mixed with ferrite powder is placed on the magnetic receiving plate (16) installed between the feeding pieces (12) and (12) by the base (15 '). It is installed and installed at.

The drive means for over-supplying the synthetic resin film (F) between the film feeding piece (12), the magnet sheet (17) and the receiving plate (16) configured as described above is an intermediate part of the support shaft (13). The trunnion (13 ″) of the operation piece (13 ′) fixed to the portion is fitted into the pin hole (14 ′) at one end of the operation link plate (14), and the pin hole at the other end of the operation link plate (14) is fitted. (14 ″) is a vertically movable vertical shaft (18) that passes through the top surface of the machine base and is vertically installed.
The vertical shaft (18) engages with the pin (19 ') protruding from the side of the operation part piece (19) attached to the upper end, and the vertical shaft (18) is vertically installed at the upper part of the machine base (1). A cam roller mounted on a lateral member (26), which is guided and supported by and is connected at its lower end to both shaft ends.
(27 ') is operated by a rotary cam (27) provided on the drive shaft (5) so that it is moved up and down. In addition, this vertical axis
In (18), a pushing force is always applied upward by a coil spring or the like. In addition, the nut (1
8 ″) and the stepped part (18 ′) of the shaft, the operating part piece (19) is provided with a buffer such as a coil spring or rubber ring (19 ″) so as to give some cushioning property in the vertical direction. Yes, the pin holes (14 ') (14 ") of the operation link plate (14) are elongated holes.

A partition heat seal mechanism is provided in front of the above-mentioned film oversupply mechanism (10) (in the flow direction of the film).
(20) is provided orthogonally to the film flow direction, and the heater
A seal piece (21) having (22) installed therein has both ends thereof as the vertical shaft (18).
Vertical shaft guide boss attached to the inner bottom of the machine base (1) in the same manner as
A pair of left and right vertical shafts (23), which are supported by (4) so that they can be raised and lowered, are hung horizontally with a support rod from the horizontal tie members (24) attached to the upper ends, and the seal part (21 ') at the lower end is The width is adjusted appropriately,
The lower part of the vertical shaft (23) is connected by a lateral member (26 ') equipped with a cam roller (27 ") so that it can be operated by a cam (27a), and a force such as a coil spring that constantly pushes up the member. It seems to be working.

A plate cam (25) for operating the handle bar is fixed to the rear surfaces of both ends of the lateral connecting member (24) of the partition part heat-sealing mechanism (20). Each support (28) is provided on both sides at the front position in the film flow direction of the heat seal mechanism (20), and the guide shaft (29) is parallel to the table (2) surface by this support (28). It is slidably supported, and a guide piece (31) is attached to the front end of the guide shaft (29) in an upright state. The guide piece (31) is operated by contacting the plate cam (25) on the upper part of the guide piece (31). Made cam roller
(32), a guide roller (32 ') for movement is attached to the lower part, an arm (33) is pivotally attached at its base end in the center, and the tip of the arm (33) is The film is made to come down to the front and normally comes into contact with the front end (12 ') of the film feeding piece (12). A handle bar (34) is installed between the tips of the arms (33) attached to the pair of guide pieces (31) (31), and the bar (34) is positioned close to the table (2) surface. And are arranged so as to be orthogonal to the film flow direction. The guide piece (31) for supporting and operating the handle bar (34) is arranged to be pulled to the feed piece (12) side by a mechanical element such as a pulling spring (not shown) on the outer side. Instead of the pulling spring, an end such as an air ram cylinder may be attached to the end of the guide shaft (29) so that the compression force of the air is used to return.

The intermittent feeding of the paperboard (A) and the film (F) is performed by an electric control mechanism such that the power from the driving unit is shut off for a required time, for example, an electromagnetic clutch is interposed. The setting of the excessive supply amount of the film can be changed by changing the cam (27) and the plate cam (25) corresponding to the vertical movement amount of the vertical shaft (18) in the excessive supply mechanism (10).

Explaining the operation mode of the device of the present invention, printing on the back side in advance, resin coating on the front side, feed holes (A1) and vertical and horizontal cut lines (A2) (A2) required The continuous paperboard (A) with a width is made by winding a reel and supporting it on the reel mounting portion (6) provided at the end of the machine base (1), and the paperboard (A)
It moves by engaging with the pin sprocket (3) (3) for driving. Synthetic resin film (F) has both feed holes in the paperboard (A).
(A1) (A1) Inner width of the required width is reeled and sent from the upper position of the end of the table (2) around the guide rollers (7) and (7 ') to the upper side of the paperboard (A) to supply excessively. At the location of the mechanism (10), the backing plate (16) between the feed pieces (12) and (12) and the magnet sheet (17)
The heat-sealing mechanism (20) sends it forward through the space between The paperboard (A) is fed so that the seal position is the position of the cut line (perforation) under the preset conditions.

Then, when the paperboard (A) first moves by one pitch and then stops,
In the film bulge forming device (30) in the state shown in FIG. 4, the vertical shaft (18) is pulled down by the action of the cam (27) and the cam roller (27 ') by the rotation of the drive shaft (5). The operation link plate (14) connected to the upper end of the vertical shaft pivots counterclockwise in the figure around the pivot pin, and as shown in FIG. Operation piece (1
The support shaft (13) moves forward via the 3 '), and the support plate (16) between the film feed pieces (12) and (12) attached to the tip of the support shaft (13) and the magnet sheet (17) Due to the magnetic action that occurs, the film (F) is sent under the pressure. In the meantime, the handle bar (34) and the guide piece (31) with the arm (33) supporting the handle bar (34) move simultaneously by the contact between the front end of the feed piece (12) and the tip of the arm (33). When the feed piece (12) is moved most forward, the heat-sealed part (a) formed first (attached first) on the paperboard (A).
After that, the film (F) is excessively supplied and swells (see FIG. 6). When the feed piece (12) stops moving forward, the partition heat seal mechanism (20) starts to operate according to the setting order, and the seal piece (12)
Before the sealing piece (21) reaches the sealing position, the plate cam (25) attached to the horizontal connecting material (24) and the guide piece (21) and the horizontal connecting material (24) supporting it are lowered. 31) The guide cam (25) moves with the attached cam roller (32), the guide piece (31) moves by the plate cam (25), and the handle bar is passed through the arm (33) supported by the guide piece (31). (3
4) Handle the film (F) that is in a bulged state to the front, and the sealing piece (21) descends on the flat part, heat-sealing the film (F) on the upper surface of the paperboard (A). (See FIG. 6). At this time, the guide piece (31) is supported by the support body (28) on the guide shaft (29).
Is slidably supported, and the guide roller (32 ') rolls on the guide surface to smoothly move the handle bar (33).

Thus, when one film bulge portion is formed, each portion operates in the reverse order of the operation sequence described above, and when the operating force on the cam roller (32) by the plate cam (25) is removed, the guide is performed. The piece (31) is pulled back by a biased return element (pull spring, etc.) so that the tip of the arm (33) contacts the end of the feed piece (12).
Moreover, the feed piece (12) is also pulled back to the standby position by the return operation of the operation link plate (14). At this time, the film (F) is heat-sealed and fixed on the paperboard (A) at the feed end in the previous bulge forming operation, and the adhesive paperboard (A) is fixed to the pin sprocket (3) (3).
Since it is kept in a stopped state during the time, when the feeding piece (12) is retracted, the magnet sheet (17) and the backing plate (16) are in the film (F).
Sliding along, there is no hindrance to the next operation. The bulged film is finished into a bag in the next step.

Thereafter, the above procedure is repeated to form the bulging portion of the film on the paper board.

When changing the volume of the film bulge formation part, the supply amount of the film can be adjusted (changing the moving amount of the feeding piece) by changing the displacement amount of the cam for operating the feeding piece. Can be set arbitrarily.

Advantageous Effects of Invention According to the device of the present invention as described above, by sandwiching a synthetic resin film in a flat state by utilizing magnetism on an intermittently fed paper board, and by supplying more than a required size paper board, A bulging portion of the film for forming a bag can be formed, and at the sealing position, the vertical movement of the sealing piece is used to move the film to be bulged forward and seal it at a flat place for accurate bulging. Since it is possible to form the projecting portion, it is possible to form a packaging bag on the paperboard easily and continuously with a simple structure, which enables rational production.

[Brief description of drawings]

FIG. 1 is a schematic vertical sectional front view of a continuous bag making machine equipped with a device according to the present invention, FIG. 2 is a plan view, FIG. 3 is a detailed vertical sectional view of essential parts, and FIGS. It is a figure which shows an operation mode. (1) …… Machine stand, (2) …… Table (3) …… Pin sprocket, (4) …… Vertical shaft guide boss (5) …… Cam drive shaft, (10) Film oversupply mechanism (11 ) …… Bracket, (12) …… Feeding piece (13) …… Support shaft, (14) …… Operating ring plate (13 ′) …… Operating piece, (15) …… Connecting corner member (16)… … Catch plate (17) Magnet sheet (18) (23) …… Vertical shaft, (19) …… Operating piece (20) …… Partition heat seal mechanism (21) …… Seal piece, (22)… … Heater (24) …… horizontal connecting material, (25) …… plate cam (27) (27a) …… cam, (27 ′) (27 ″) …… cam roller (28) …… support, (29 ) Guide shaft (30) ...... Film bulge forming device (31) ...... Guide piece, (32) ...... Cam roller (32 ') ...... Guide roller, (33) ...... Arm (34) ...... Handle bar, (A) …… Paperboard (A1) …… Feed hole, (F) …… Film

Claims (1)

[Claims] 1. A continuous paperboard coated with a resin is intermittently fed, and a synthetic resin film is intermittently over-supplied on the paperboard at a required pitch, and the corrugated film is attached on the paperboard to form a bulge portion. In the forming device, a pair of film feed pieces are arranged in parallel with the table surface under the pair of brackets standing upright on both sides of the paperboard traveling section on the machine table, and between the film feed pieces. Has
A film overfeed mechanism that has a magnetic receiving plate and a magnetic sheet with one end free to hold the film and overfeed it, and has an intermittent drive mechanism that moves the film forward and backward by the required dimensions, and the overfeed mechanism of the film. A heat-seal piece which is orthogonal to the moving direction of the film at the front position and moves up and down after the film is supplied, and a partition seal mechanism including a driving means for the heat seal piece, and a heat seal piece at the front position of the partition seal mechanism. It is composed of a handle bar which is interlocked with the film feed piece until the time of the operation of the heat seal piece, and which handles and saves the film that has been bulged from the seal position when the heat seal piece descends, its supporting arm and a cam mechanism for operating these. An apparatus for forming a bulge forming portion made of a synthetic resin film on a mount.