JPH0213286Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> This invention relates to a printing device for automatic packaging machines, and more specifically to automatic packaging that prints by pressing a printing tape onto a packaging film with a printing body. This relates to a printing device in a machine.

《Prior art》 As a printing device using printing tape,
52-50815 is publicly known. When this known printing device is applied to an automatic packaging machine, especially an automatic packaging machine that simultaneously packs multiple packaged products in a parallel state, the width of the printing body is larger than the width of the printed body in the width direction perpendicular to the running direction of the packaging film. A plurality of printed bodies are arranged at intervals, a wide printed tape that runs in the same direction as the packaging film is placed between these printed bodies and a packaging film, and these multiple printed bodies are driven simultaneously. It is conceivable to print a horizontal row of characters at predetermined intervals on a packaging film.

<<Problems to be Solved by the Invention>> However, when such means are adopted, the printing area becomes extremely wide compared to the printing area which requires a relatively expensive printing tape, making it uneconomical.

In particular, as described above, since the interval between the printed bodies is made larger than the width of the printed bodies, there are many unused portions on the printed tape, and the above-mentioned problem becomes significant.

On the other hand, if a plurality of narrow printing tapes corresponding to each printing width are used to improve this uneconomical problem, the structure for hanging the plurality of printing tapes becomes complicated and troublesome.

On the other hand, for example, Utility Model Application No. 50-4627 and Utility Model Application No. 52-
As shown in No. 5611, etc., a device is known in which the printing tape is supplied diagonally to the printing body to make effective use of the printing tape.

However, in all of these conventional tapes, the print tape is supplied so that the sides of the print traces (parallel) along the arrangement direction of the print bodies are in contact with each other. In other words, this aims to effectively utilize the printing tape in the direction orthogonal to the direction in which the printing bodies are arranged, and as shown in both publications, the printing tape is Although almost the entire surface can be used, when applied to a structure where the spacing between printed bodies is larger than the width of the printed bodies, as in the present invention, the tape portion existing between adjacent printed bodies can be used. Since printing cannot be performed on the tape, it is not possible to effectively utilize the tape area.

The present invention was developed in view of the above-mentioned background, and its purpose is to provide a structure in which the spacing between printed bodies is larger than the width of the printed bodies, even when using narrow printing tape. To provide a printing device for an automatic packaging machine that can print reliably and efficiently utilize a printing tape.

<Means for Solving the Problems> In order to achieve the above object, the printing device according to the present invention is designed to print at a predetermined position during the transfer of a packaging film in an automatic packaging machine that simultaneously packs multiple packages in parallel. A receiving plate is disposed on one side of the packaging film in a direction substantially perpendicular to the running direction of the packaging film, and a plurality of printed bodies are arranged on the other side at positions facing the receiving plate. The printed bodies are arranged in a horizontal line and the interval between the printed bodies is larger than the width of the printed bodies, and a printed tape of a predetermined width is supplied and arranged from an oblique direction between the packaging film and the printed bodies, and the feeding angle of the printing tape is between a line connecting the lower end of the opposite edge of one of the adjacent printed bodies and the upper end of the opposite edge of the other printed body, and The angle was set to be equal to or greater than the angle formed by the line connecting the two and as much as possible, and the pitch of the print marks left by the printed body on the tape was made smaller than the pitch of the printed body.

<<Operation>> The print tape is fed obliquely to each print body arranged horizontally (in series) at the predetermined angle described above. As a result, the printing tape is stretched so as to come into contact with all the printing bodies.

From this state, printing is first performed by relatively pressing the printed body against the packaging film via the printing tape.

Next, by moving (winding up) the print tape by a predetermined amount, an unused tape portion is positioned opposite the print body, and the printing operation is performed again at that position.

By doing this, it is possible to print the manufacturing (packaging) date on multiple packaged products in parallel using a single relatively narrow printing tape, and it is possible to print the date of manufacture (packaging) on multiple packaged products in parallel using a single relatively narrow printing tape. There is no need to use wide tape.

At this time, the supply angle of the printing tape is set between a line connecting the lower end of the opposite side edge of one print body and the upper end of the opposite side edge of the other print body, and a line connecting the adjacent print bodies. The angle is equal to or greater than the angle formed by the connecting line, and the pitch of the print marks left on the tape is smaller than the pitch of the print body, so that it is located between adjacent print bodies. The print body also comes into contact with the tape area and is printed.

<<Examples>> Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Reference numeral 1 denotes a belt-shaped forming film, and 2 an intermittent transfer conveyor that pinches both sides of the forming film 1 in the longitudinal direction and transfers it intermittently, such as an endless chain conveyor equipped with a large number of holding claws 3. It is something. 4, 4 is a container molding box, 5
is a container-shaped part, 6 is a content, 7 is a packaging film,
8 is a horizontal sealing device; 9 is a cutter device for cutting the cut portion 11 of the horizontal sealing portion 10 sealed by the horizontal sealing device 8; 12 is a device for forming a vacuum and the vertical sealing portion 13; The seal portion 13 is cut by a vertical seal portion cutter 14 at a later stage. 15 is a completed packaged product.

Reference numeral 16 denotes a printing device installed during the transportation of the packaging film 7 in order to print the manufacturing (packaging) date, etc. at a predetermined position on the packaging film 7. As shown in the figure, one end of the first frame 18 is attached to a post 17 erected at a predetermined position of the packaging machine main body A so that it can be moved up and down and fixed at any position (height).
A second frame 18' is attached to the front surface of the frame 18 through a connecting rod 19 so as to face each other.
20 is a printing mounting plate attached to the second frame 18' via a screw rod 21;
1, the first frame 18 can be adjusted to move forward and backward with respect to the first frame 18. A heater 22 is embedded in the printing mounting plate 20, and a heater 22 is installed at a predetermined interval on the printing mounting plate 20. The plurality of printed bodies 23 attached at the same time are appropriately heated.

This printed body 23 is different from the adjacent printed bodies 23, 23.
The interval between them is set to be larger than the width of the printed body 23.

Reference numeral 24 denotes a print tape attachment arm whose center portion is attached to the second frame 18' so that its rotational angle can be freely adjusted.By rotating this print tape attachment arm 24, the print tape 25 is attached to the print object 23.
It is designed so that it can be supplied at a predetermined oblique angle as described later (see FIG. 5). In addition, each rectangular part surrounded by a chain line in FIG. 5 is a tape part used for printing (ie, a part that becomes a print mark). Then, the adjacent printed body 23
Each printed body 23 is arranged so that at least one printed trace is located between them.

Further, a roll reel 26 and a guide roll 27 of the printing tape 25 are attached to one end of the printing tape mounting arm 24, and a pinion 28 is attached to the other end coaxially with the take-up roll 28 of the printing tape 25.
A, a one-way clutch 28b such as a ratchet, and a gear 28c are attached to the gear 28c, and a gear 2 fixed to the mounting shaft 29a of the take-up reel 29 is attached to the gear 28c.
9b is engaged. 30 is the pinion 28
The rack 30 is adapted to be driven by a drive cylinder 31 attached to the printing tape mounting arm 24. 3
2 is a guide roll. Reference numeral 33 denotes a print receiving plate attached to the first frame 18, and the print receiving plate 33 is provided so as to move back and forth toward the print body 23 by, for example, a well-known pneumatic pillow cylinder 34 or the like. 34' is a support rod for the printing receiving plate 33, and the support rod 34' is connected to the first
It is supported by a frame 18 of. 36 is a guide rod for sliding the print receiving plate 33, the tip of which is slidably inserted into the hole 37 of the print receiving plate 33;
Its base end is fixed to the frame 18 with screws 38. Reference numerals 39 and 39 are boss parts of the printing tape mounting arm 24 divided in half at the center, and are attached to the second frame 1.
The concave arc surfaces 40, 40 are fitted onto the outer periphery of a shaft portion 42 which is attached to the shaft portion 8' with a screw 41 from above and below, and are fastened to the shaft portion 42 with a screw 43. 44 is a screw for attaching the printing mounting plate 20 to the shaft portion 42, 45 is a rack provided on one side of the support column 17, and a pinion 46 attached to the first frame 18 meshes with the rack 45. The pinion 46 is adapted to be rotated by a handle 47. Reference numeral 48 denotes a stopper shaft for fixing the first frame 18 at a predetermined position (height), and as the stopper shaft 48 rotates, the stopper piece 49 moves back and forth by means of a threaded portion 50, so that one side of the support column 17 is moved. It is designed to be gripped by pressing. Reference numeral 51 indicates an air supply and exhaust port of the pillow cylinder 34.

The printing tape can be of any type, such as the well-known hot printing type or ink type, and the automatic packaging machine using this device is not limited to the deep drawing type, and the printing tape can be of any type. 23
Any number of numbers can be used.

Next, the operation of the above embodiment will be explained.
When the printing device of the present invention is used in a deep-drawing automatic packaging machine as shown in the first figure, first the second frame 18'
The printed bodies 23 attached to the holder are arranged horizontally so that the date of manufacture (packaging) can be printed at a predetermined printing position (in the case of this embodiment, one side of the packaging film 7) of each packaged product to be packaged in parallel. They are arranged in a line (in series) at appropriate intervals (see Fig. 3). Further, on the front surface of each of the printed bodies 23, as shown in the figure, there is a printed tape 25 with a roll reel 26 attached to the left end of a printed tape attachment arm 24 rotatably provided on the second frame 18'. It is stretched over the printed body 23 in a horizontal line from the left end to the right end in the figure.

Furthermore, this printing tape 25 can be attached to the printing body 2 by rotating the printing tape attachment arm 24.
3 and the band-shaped packaging film 7 at a predetermined approach angle (see FIG. 5).

Furthermore, the handle 47 is rotated to move the printing device 16 with the printing body 23 etc. attached up and down, aligning it with a predetermined position on the packaging film 7, and attaching the printing device 16 to the support 17 using the stopper piece 49. Fix it. As a result, printing is performed at a predetermined position on the packaging film 7.

However, in the levered state, when printing is performed at a predetermined position on the packaging film 7 due to the operation of the automatic packaging machine, the pillow cylinder 3 shown in the third figure
When air is sent from the air supply/exhaust port 51 into the cylinder 4 and the pillow cylinder 34 expands, the print receiving plate 33
moves forward toward the printed body 23 side and presses the packaging film 7 and the printing tape 25 against the printed body 23, and the printed body 23 moves forward toward the printed body 23 side.
Since the printing tape 25 is heated to an appropriate temperature by
The ink is melted and printed on seven sides of the packaging film.

After printing is finished, the air supply and exhaust port 51
Air is exhausted from the cylinder, the pillow cylinder 34 contracts, and the printing receiving plate 33 returns to its original position due to the restoring force of the spring 35, so the packaging film 7 and the printing tape 25 are separated, and the packaging film 7 is fed by a predetermined pitch. . At this time, the take-up roll 28 is rotated by a predetermined angle by the operation of the air cylinder 31, and the printing tape 25 is moved in the direction of the arrow by the necessary amount. As a result of this movement, the portion of the printing body that contacts the printing body is moved from the solid line to the dashed-dotted line and the dashed-double line in FIG. 25) will be used for printing in the second and subsequent stages. As a result, the pitch w1 of the print mark formed by the print body 23 on the used print tape 25 becomes smaller than the pitch w2 of the print body 23, and the tape portion located between the adjacent print bodies 23 is It can be used effectively and the amount of unused parts can be kept to a minimum.
As a result, the date of manufacture, etc. can be printed on a plurality of packages arranged in parallel at once using one relatively narrow printing tape 25.

In addition, after a series of printing operations are completed, when printing is performed on a packaging film with different printing conditions, first, the printing attachment arm 24 is rotated by a predetermined angle, and the printing attachment arm 24 is placed in the Place the printing tape 25 on the printing body 2 so as to cover the printing body 23.
3 at a predetermined angle. Thereafter, printing is performed according to the action described above.

In this way, desired printing can be applied to any packaging film.

In addition, in this embodiment, since the printing tape attachment arm is rotatable, the printing tape can be opposed to the printing object at any angle, so it is always suitable for packaging regardless of the distance between the printing objects. Desired printing can be reliably applied to the film.

Furthermore, since the printed body and the like can be moved back and forth in the same direction along the packaging film, the position of the printed area can be easily and reliably aligned.

<<Effects of the invention>> As described above, the printing device according to the present invention is capable of printing the manufacturing (packaging) date, etc. on multiple packaged products in parallel, and the spacing between the printed bodies is more important than the width of the printed bodies. Even if the printing device is larger, the feeding angle of the printing tape should be adjusted to connect the lower end of the opposite edge of one printing element to the upper end of the opposite edge of the other printing element between adjacent printing elements. The angle formed by the line and the line connecting one row of printed bodies is made equal to or greater than the angle as much as possible, and the pitch of the print mark left by the printed body on the printing tape is made smaller than the pitch of the printed body. The tape can be used for printing by bringing the print body into contact with the tape part that exists between adjacent print bodies that could not be used, and the printing tape can also be effectively used for printing in the direction in which the print bodies are arranged. can.

Therefore, multiple packages can be manufactured (packaged) in parallel using a relatively narrow strip of printed tape.
Because the date can be printed on it,
There is no need to use a tape as wide as the packaging film.

In addition, there is no need to use multiple rolls of printing tape for each row, making it extremely easy to handle, and only one relatively narrow piece of printing tape can be used, so you can save on printing tape. It is very economical and requires less installation space.

As a result, the structure of the apparatus is significantly simplified, and costs can be reduced. Also, there are fewer mechanical troubles and operational troubles, and work efficiency can be significantly improved.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is an overall schematic diagram of an automatic packaging machine, Fig. 2 is a partially cutaway front view of the device of the present invention, Fig. 3 is a cross-sectional plan view of the same, and Fig. 4 is a schematic diagram of the entire automatic packaging machine. The figure is a cross-sectional view taken along the - line in Figure 2, Figure 5 is an explanatory diagram showing the positional relationship between the printed characters and the printing tape, Figure 6 is a plan view of multiple bags arranged in parallel according to the present invention, and Figure 7 is the completed packaging. It is a perspective view showing an example of a product. DESCRIPTION OF SYMBOLS 1... Band-shaped film for forming, 2... Intermittent transfer conveyor, 3... Clamping claws, 4, 4... Container forming box, 5... Container-shaped part, 6... Contents, 7...
Packaging film, 8... horizontal sealing device, 9... cutter device, 10... horizontal sealing section, 11... cutting section, 12... device for forming vacuum and vertical sealing section 13, 13... vertical sealing section , 14... Vertical seal portion cutter, 15... Packaged product, 16... Printing device, 17... Support column, 18... First frame, 1
8'...Second frame, 19...Connecting rod, 20
... Printing mounting plate, 21 ... Screw rod, 22 ... Heater, 23 ... Printing body, 24 ... Printing tape mounting arm, 25 ... Printing tape, 26 ... Ball reel, 27 ... Guide roll, 28... Winding roll, 28a... Pinion, 28b... Clutch,
28c...gear, 29...take-up reel, 29a...
...Mounting shaft, 29b...Gear, 30...Rack, 3
1... Drive cylinder, 32... Guide roll,
33... Print receiving plate, 34... Macra cylinder,
35... Spring, 36... Slide guide rod, 37... Hole, 38... Screw, 39, 39...
Boss part, 40, 40...concave arc surface, 41...screw,
42...Shaft part, 43...Screw, 44...Screw, 4
5... Rack, 46... Pinion, 47... Handle, 48... Stopper shaft, 49... Stopper piece, 50... Threaded portion, 51... Inlet/exhaust port.

Claims (1)

[Scope of utility model registration request] In an automatic packaging machine that simultaneously wraps multiple packages in a parallel state, a receiver is placed at a predetermined position in the middle of transport of the packaging film, and is placed on one side with the packaging film in between in a direction substantially perpendicular to the running direction of the packaging film. A board is provided, and on the other side, a plurality of printed bodies are arranged in a substantially horizontal line in a position facing the receiving plate, and the intervals between the printed bodies are larger than the width of the printed bodies, and A printing tape of a predetermined width is supplied between the film and the printed body from an oblique direction, and the feeding angle of the printing tape is set at the lower end of the opposite side edge of one of the printed bodies between the adjacent printed bodies. and the upper end of the opposite side edge of the other printed body, and the line connecting the printed bodies of this row. 1. A printing device for an automatic packaging machine, characterized in that the pitch of printing traces left on the printing body is smaller than the pitch of the printing body.